H3PS - 豊和工業
Contents
1. Bo2. 4 4 He
3. TOES Senet 25 Table of contents Introduction Safety Information Safety Precautions 1 Construction and Operation 4 1 1 Display FOr IHE
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9. 6 RGO 35 ES ue 1 DACRE L S DES 6 M10 2 15 8 M12 2 18 e 45 10 M14 2 20 12 M16 2 23 8 A 6
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11. 10 2 10 J6 d d 2x N J6 d d 2 SILI ST ME
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13. 12 A omo ISO VG68 E 1 1 C 2 8 8 6 io 1z axt
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15. Y nET O A A
16. 254 m CL 21 HH4C O 5MPa 255
17. H3PS JIS specified spindle nose No No mark Having a straight socket for installation of chuck standard model Including an adapter Spindle nose No A5 A6 A8 Size No 6 8 10 12 1 2 Construction and Operation Fig 1 Crank Lever Falcrum Pin The 3 jaw power change chuck Model Weight Top Jaw H3PS has a crank lever mechanism and basically consists of a chuck body a Draw Stud Bl draw sleeve clank levers fulcrum pins Round Nut keep top jaws and pilot bushing R Fes PCT When the draw screw is drawn to the backward this movement and output n rj 3 n force of cylinder is transmitted through ees the draw sleeve crank lever and top jaws 5 FRONT directly mounted on the crank lever REAR ar The top jaws pull the work piece down to o gg Pilot Bushing the datum face on the chuck body Draw Sleeve Having a low friction mechanism Pow compare to wedge hook type chuck low 1 dd Chuck Body gripping force is easily obtained Moreover gripping force can be changed from high to low in accordance with the change
18. 1 2 BE a Y X x 25 3 X NI 60 ral lt 50 m 40 H3PS10 E Zr 21 1 34 40 F3 58 Q H3PS6 APP Q O 20 40 60 80 lt kN 6 5
19. E UE R e 1 1 mm 49 J M16X2 M20X25 M24X3 M27X3 Re Re 1
20. 3 5 1
21. JIS BO9O5 1992 4mm s F JIS BO905 1992 ISO1940 1 1986 ISO8821 1989 I A 2 3 4 6 3 1
22. 25 2 C ED C 0 040 0 050 mm IOOOS A 110 010 2 53 8 24 6 3
23. D 2 2188 5 1 Er cg 0 A VA LO a cote fle a Seer Toye q Lied 8553 8
24. 1 1 O 1 O 3 O 3 3 3 2 O 6 3 6 Oo Oo 7X N 0 01 A IO X3 KES QUIM 3 Oo 3 Oo X 12 6 3 8 18 36 4 DS 1H 8 DS 1H 10 AS568 164 AS568 169 AS568 2 76 P14 P16 JIS P20 JIS 3 6 P42 JIS PSO JIS P65 JIS 5568 127 G45 JIS G60 JIS P36 JIS P44 JIS P55 JIS 5568 131 5568 136 5568 145 553 S63 NOK S80 NOK P14 JIS P16 JIS P22A JIS AS568 017 AS568 O18 AS568 O23
25. ANSI B1 1 6 1984 M Ix TANS B1 1 6 1984 ANSI_ B1 1 6 1984 15 3 6 4 22 4 1
26. 6 p T 12 D w ba lt 7 ms SCHR ceccb 1 1 ISO VG68 COREA
27. Vm 2 22 gesot s w 3 mm 0 020 0 030 TIR mm 0 020 0 030 3 R3 N m AES
28. S 7 EM N m Sgi 7 3 3
29. a3 Du fee ie 1 2 L P1112 1 Zep 2 EIAS 122055 1 4 GOOD NO GOOD 01 4 J DOwwemMETS 211 1 4 E L Rie
30. H E A ANSI B1 1 6 1984 section 4 3 2 EE 14 362 M O xm 5 TANS B11 6 1984J
31. 13 3 6 222 ANSI B1 1 6 ANS Ch 3 6 1
32. VDI No31O6 VDI No 3106 VDI No 31O6 6 3 10187 UB
33. 2 4 5 CE 7452 8601 28285287 1900 1 TEL 052 408 1254 FAX 052 409 3766 6 S 1MPa 10 197kgf cm 1kN 101 97kgf 1N m 0 1019Tkgf m
34. 10 25 11 27 5 ONONO 43 TANS 11 6 198410 section 7 1 9
35. 1 M4 1 J6 d1 d1 2x N J6 2 d2 d2 gt d d1
36. SN gt 4 Vl P 6 8 1 11 3 A5 A6 AS 6 8 10 12 1 2 H3PS 3
37. 24 6 7 Accessories The package box contains the accessories besides the chuck itself 5 Specification Specification Q ty Specification Specification Hex socket head M10 M12 M16 M16 bolt for mounting 3 L 80 L 95 L 115 L 130 chuck B 5 B 6 B 8 B 8 B 8 B 14 B 12 B 14 Long wrench B 14 Hex key spanner Eye bolt M10 LIMITED WARRANTY Seller warrants its products to be manufactured in accordance with published specifications and free from defects in material and or workmanship Seller at its option will repair or replace any products returned intact to the factory transportation charges prepaid which seller upon inspection shall determine to be defective in material and or workmanship The foregoing shall constitute the sole remedy for any breach of seller s warranty Seller makes no warranties either express or implied except as provided herein including without limitation thereof warranties as to marketability merchantability for a particular purpose or use or against infringement of any patent In no event shall seller be liable for any direct incidental or consequential damages of any nature or losses or expenses resulting from any defective product or the use of any product 20110315 25
38. 46D gd2 D d2 5 d hG 1 6a 6 Ic 12 3 4
39. 41 42 J3 J4 J5 JG Jf J8 J9 J10 J11 J12 J13 J15 J16 J17 J18 1 kg J4 66 2mm X 24 6 7 8
40. J6 d 46 2 E 2 d 4 d d 7 RAMA 1 6a 1 5
41. 6 25 110 40 132 50 160 60 200 130 175 150 210 190 254 230 304 5700 3900 3400 3000 D 24 40 58 16 D 15 27 41 62 x 0 058 044 16 27 IM VA g g 1 4 GD 2 21 6 2 WA 210 254 304 140 170 220 220 83 95 115 132 104 8 133 4 1714 1714 3 M10X1 5 3 M12X1 75 3 M16Xx2 6 16 2 13 18 22 2 M16x2 20 25 M24X3 M27X3 35 40 50 60 23 28 32 32 36 41 49 56 49 45 63 68 100 12 13 14 15 82 92 17 38 45 52 50 56 56 53 59 65 33 39 42 19 215 25 47 5 60 TO 35 C F W2 W1 M8x 1 25 15 3 Z3 H3P S6 8 8 1 25 16 M10x1 5 22 3 H3P S12 6 82
42. o TANSI B11 6 1984 AES
43. 2 Okg JL 6 8 2 2 6 7 23 HGPS ADEF y DEREZ
44. 6 254 d 8 255 eR 8 6 3 1 o e e eee e 8 32 9 33 10 34 ee t t t n n m 13 35 ooe 13 351 13 36 14 364 14 362 15 363 15 364 16 A 16 41 16 42 a 17 43 1T 44 18 2c 20 6 21 6 1 PSC Me alee ae Sa ot SOR i ST 9 RE 8 21 6 2 22 6 3 Be See 28 SEDIS See DIT o Bs 23 64 23 65 BYE PP 24 66 24 67 NEBr reee nt nt ng ng Sg th Mc 25 o o o o t nt ng n t B ee 25 1 HOPS 3
45. 1 4 6 mm 3 6 3 M
46. 4 1 2 Construction and 4 ZA ciue Meme 4 2 1 Unpacking 4 2 2 ACCESSONES utpieki fes eee eate eese i HER ERE ER 5 2 3 Preparations for Installation 5 2 4 Stroke Control rani eni aon anter carat dee toc cot ates 5 2 5 Installation Procedure 5 2 5 1 Before Installation 2 5 2 5 2 Installing Chuck Adapter 5 2 5 4 105 0 224 22 2 42424222 222 242 2222244424242432 6 2 5 4 Inspectio 8 25 0 Bala IRE Sa 8 3 Precautions for Use 8 3 1 Selecting 8 3 2 Installing Top JGWS ersten et 9 3 3 Forming Top ucc eto ee eese Seer 10 3 4 Installing Stopper 13 3 5 Setting Working Conditions 13 3 5 1 Permissible Cylinder Force 13 3 6 Precautions for Operation 14 3 6 1 Before Gripping Work piece 14 3 6 2When Gripping Work piece 15 3 6 3 During Cutting Operations 15 3 6 4 End of Operations Eo 16 4 Maintenance ee 16 221 Lub
47. mistaken operations it may cause severe personal injury and machine damage 4 Maintenance 4 1 Lubrication The most frequent cause of chuck failure is insufficient or improper lubrication If lubrication is insufficient or if a non specified lubricant is used not only will wear be accelerated the gripping force will be inadequate with the possibility of the work piece coming off during the cutting operation Adhere to the following guidelines for lubrication Fig 12 Lubrication Points Time of Lubrication Oil supply drain port Oil supply drain port ISO VG68 on the circumference lubricating oil Once every a month of the chuck bod or equivalent Oil replacing Procedure 1 Remove the two plugs on the circumference of chuck body and then drain the spoiled oil from the both of oil supply drain ports Rotate the chuck body by hand several times slowly to drain the oil thoroughly 2 Screw in one plug into one of two oil supply drain ports and then pour the specified quantity of lubricating oil see table 10 to another port 3 Screw in another plug to the port where the oil is poured 4 Open close the top jaws for several times without clamping a Plug for oil p work piece Both sid Table 8 E Chuksze 6 8 10 12 Lubricating oil quantity mL 1200 Insufficient lubrication will lead to lower gripping force and create abnormal friction and seizure If the cutting is done i
48. the warning messages described in this manual do not cover all the hazardous situations Also there are too many things that are impossible or prohibited in chuck operation to describe completely in this manual We cannot assume any responsibility for any damage or accidents caused through operation inspection or maintenance that is not specified in this manual 1 Safety Precautions The following precautions apply to handling maintenance and operation of the chuck Read and understand them carefully before use Never operate the rotating cylinder selector valve while the spindle is rotating Otherwise the gripped work piece may come off and fly out Never put any part of your body inside the spindle cover while the spindle is rotating Otherwise you may be caught in the rotating elements Route the solenoid valves so that the chuck keeps clamping the work piece even if the power is interrupted Otherwise the gripped work piece may come off and fly out Keep the hydraulic pressure constant while the chuck is gripping the work piece Otherwise the gripped work piece may come off and fly out Turn off the power before installing inspecting or servicing the chuck Otherwise you may be caught in the rotating elements XX 2 Always operate the chuck within the maximum speed described in the specification table Increase in the chuck speed lowers the gripping force and the chuck may lose hold of t
49. Howa representative We disclaim all the warranties and responsibility for accidents caused by use of the top jaws not prepared by Howa 4A WARNING For all the chuck parts including consumables place an order with Howa Machinery Ltd Howa shall not be liable for any accidents caused by use of parts not supplied from Howa Any and all warranties are invalid unless only Howa s genuine parts are used WARNING Do not use any top jaws which are heavier than those supplied with this chuck If the mounted jaws are heavier than the standard soft jaws or standard hardened jaws the chuck will lose extra gripping force by the centrifugal force due to excess in weight This in turn may cause the work piece to fly off and may cause severe personal injury or death to the operator or bystanders 3 2 Installing Top Jaws 1 Select the top jaws in terms of the work piece and install them on the chuck Before doing so however clean off the fitting portions of the top jaw and crank lever with a compressed air blast What dirt or foreign matter remains can be loosened with cleaning oil brushed vigorously then blown off by compressed air NOTE Fig 7 Crank Lever Top Jaw e e When the end surface and the fitting portions of the top jaw and the crank lever damaged
50. contacting us for service Possible cause Recommended remedy Chuck does not operate Insufficient crank levers stroke Damaged parts on chuck Disassemble and repair Seizure of sliding contact part Disassemble and repair with oilstone or replace Rotating cylinder inoperative Chips heavily accumulated inside Check the piping line If no problem is detected disassemble and clean the cylinder Disassemble and clean Loosened joint between rotating cylinder and connecting rod Remove the rotating and retighten cylinder Work piece slips Poor accuracy Insufficient top jaws stroke Adjust so that top jaws come near the center of the stroke when they grip the work piece Insufficient pressure Increase pressure to the set level Top jaws do not match the work piece diameter Correct top jaws forming in right way Excessive cutting force Calculate the cutting force to see if it matches the specification of chuck Lubricating oil has deteriorated Replace lubricating oil open close the top jaws a few times while no work piece is gripped Excessive speed of revolutions Chuck runs out Reduce the speed till the necessary gripping force is assured Check peripheral and end face run out and retighten bolts Stopper end face runs out Correct the run out stopper end face Dust has entered the crank lever or installation end su
51. equation Lee 2 J6 Size of top jaw 3 Operate the hydraulic or air circuit to clamp the forming plug at the part in the top jaws In this moment push the forming plug firmly to the stopper surface to avoid the inclination of forming plug Use care not to pinch your hand when gripping the formed plug or you will suffer injury to your hand 4 Machine the gripping surface d of top jaws with gripping the forming plug Diameter d should be formed in the same diameter as the gripping diameter of the work piece approx allowance H7 and its surface finish should be better than 1 6a A finished surface with a higher precision will be obtained if the forming plug is regripped before the final finish forming D IL 5 After finish forming of top jaws grip the work piece in top jaws and check that required jaw stroke and gripping accuracy are obtained Note Depending on the shape of top jaws it can be necessary to detach the top jaws from the chuck before inserting the forming plug After forming top jaws detach the top jaws to take out the forming plug Fig 11 ID gripping 1 Prepare a forming plug for top jaws forming plug When the J6 dimension in the top jaw is determined diameter
52. it is similar to when dirt clings to the fitting portions the top jaw is not seated properly causing poor accuracy When the damage is noticed a whetstone and file should be used to repair it 2 The top jaws engage with the fitting portions of the crank lever and the arrangement is secured with the bolts Therefore this must not be used in areas other than specified 3 Install the top jaws to the specified position on the crank lever using the number of bolts indicated in Table 6 Table 6 Depth of per top jaws Length of No of bolts crank lever top jaw screw Thickness of top jaw bolt washer WARNING Secure the top jaw with the specified number or bolts Be sure to chouse the bolts with appropriate length If less bolts than shown in Table 6 are used to fix the top jaw the top jaw or bolts may break If the screw in depth S of the bolts fixing the top jaw to the crank lever is too short the bolts or crank lever may break In either case the top jaw or work piece may fly off and in turn may Cause severe personal injury or death to the operator or bystanders 4 Tighten the bolts for top jaw installation bolt with the fastening bolt shown in Table 7 Table 7 Tightening torque 42 WARNING Use exact torque for fastening bolts WARNING If less torque is used than specified in Table 7 above the bolts may loosen in the top jaws and or the work piece could come
53. of forming plug d1 is calculated with following equation d1 diameter of forming plug d1 2x N J6 2 Prepare a forming ring for top jaws 42 inside diameter of forming ring Q d same as the gripping diameter of work piece d2 gt 3 Operate the hydraulic or air circuit to clamp the forming plug at the d1 part in the top jaws In this moment push the forming plug firmly to the stopper surface to avoid the inclination of forming plug Use care not to pinch your hand when gripping the formed plug or you will suffer injury to your hand 4 Machine the top jaw where the forming ring is gripped Gripping part for forming ring on the top jaw is to be finished to the same diameter as d2 of forming ring D d2 5 Machine the gripping surface d of top jaws with gripping the forming plug Diameter d should be formed in the same diameter as the gripping diameter of the work piece approx allowance h6 and its surface finish should be better than 1 6a A finished surface with a higher precision will be obtained if the forming plug is regripped before the final finish forming 6 After finished forming of top jaws grip the work piece in top jaws and check that required jaw stroke and gripping accuracy are ob
54. 1 The cylinder pressure when the top jaws are formed should be the same as when the work piece is actually being cut Do not grip near the end of the jaw stroke Forged or molded work pieces have surface irregularity as far as they are not machined The chuck may not be able to grip such a work piece in a stable state Gripping a forged or molded work piece not machined near the end of the jaw stroke will cause insufficient gripping force and the application of the tool to the work piece may cause the work piece to slip out of the jaws and fly off This may cause severe personal injury or death to the operator or bystanders 10 Fig 10 OD gripping Flange shaped work piece Bar shaped work piece Prepare a forming plug for top jaws Prepare a forming plug for top jaws When the J6 dimension in the top The diameter of work piece is jaw is determined diameter of determined that of forming plug forming plug d is calculated with is calculated with following following equation equation diameter of formed plug d diameter of formed plug d 2x N J6 d d 2 Cut off the unnecessary part of top Machine the top jaw jaws to conform it to the dimension where the forming and shape of the forming plug plug is gripped When the diameter of forming plug is determined J6 dimension in the top jaw is calculated with 1 following
55. 2 1000 di Ch EBEDET 1 14 13 12 4 26
56. 3 3 JAW POWER CHANGE CHUCK HSPS INSTRUCTION MANUAL A A IMPORTANT Be sure to read and understand this instruction manual thoroughly before operating this product s Pease Save OS P ownership of this product is transferred submit this manual to the new owner Y AI GIN ErAL HOWA MACHINERY LTD 1 ep o te OT OS De UV VEO Se 4 1 1 EE EE i Sar 4 12 ow RE ere ec ces 88247281 DES te 4 4 2 4 21 8 A Ge 4 22 t nt ng ggg gk c we eh ee ee 5 23 See es 480187 08328274 5 24 A 5 25 D 5 25 1 5 2 5 2 5 253
57. 7 41 62 kg 0 14 Moment of Inertia J See Note 1 Weight with standard soft top jaws 27 Matching cylinder Series number Max pressure to operate chuck Series number Max pressure to operate chuck Note 1 The four times of this value is equivalent to Note 2 When the Max speed of a rotating cylinder is lower than a chuck observe that of a rotatingcylinder 21 6 2 Dimensions 210 170 95 104 8 133 4 3 10 1 5 3 12 1 75 13 18 16 2 M20 X2 5 35 40 23 28 36 41 49 45 12 13 82 92 17 38 45 52 50 56 56 53 59 65 33 39 42 19 21 5 25 47 5 60 70 35 M8X 1 25 15 M8X 1 25 16 10 1 5 20 22 48586 8 10 J M gt 802 Be dA IN 19 d co 1 det os 6 23 H3PS12 R 6 3 Gripping Force Static gripping force The gripping force depends on the height from the end face of the chuck to the gripping surface X Dynamic gripping force This represents the gripping force of standard top jaws during chuck rotation at the point away from the end face of the chuck toward the gripping surface by dimension of X2 Dyn
58. 9891 2127 X2 X 2 TUM 6 8 12 sso 26 DO ex fq 2 X H3P510 s he _ lt amp _HaPsio R H3PS6 E ESO 2000 4000 6000 0 10 20 30 40 50 60 10 Cr mi n Fry Tima TORS X mm 64
59. CAUTION If the seals are worn or inside parts are damaged replace them in this opportunity Disassembling Procedure 1 Remove the two plugs 14 on the circumference of chuck body 1 and then drain the spoiled oil from the both of oil supply drain ports 2 Remove the top jaws 13 and retainers 3 and plugs 12 and pilot bushing 4 3 Remove the plugs 26 on the back end of the rear cover 2 and remove the rear cover using the jack bolt holes in the inside 4 Remove the weights 10 on the back side of the crank levers 9 5 Remove the setscrews 25 on the circumference of the chuck body and remove the fulcrum pins 11 by striking it out from the side in which the grease nipple 27 is attached by a pipe that has nearly the same diameter as that of the fulcrum pin 6 Remove the crank levers from the chuck body 7 Remove the draw sleeve 5 Reassemble the chuck with reverse way to disassembling procedure applying specified lubricating oil sufficiently Finally pour in lubricating oil of the specified quantity from oil supply drain port 4 3 Setting Safe Rotational Speed ANSI 11 6 1984 section 7 1 9 suggests guidelines for setting a safe rotational speed A safe rotational speed will be a function of the consideration of among other things the degree of wear and tear then existing on the jaws of the chuck which may effect their ability to grip the work piece The jaws or chuck body should be replaced and or properly re
60. HINE TOOL ACCESSORIES TEAM SALES GROUP CREATIVE ENGINEERING DIVISION MACHINERY DEPT 1900 1 SUKAGUCHI KIYOSU AICHI 452 8601 JAPAN Phone International access code 81 052 408 1254 Facsimile International access code 81 052 409 3766 6 The values of this manual are described in SI unit system Values of former unit system can be obtained by following calculations Pressure 1 10 197 1kN 101 97kgf Torque 1N m 0 10197kgf m Safety Information This manual contains warning messages for safe operation that are indicated by Safety Alert Symbols Carefully read and fully understand these messages The danger levels of the Safety Alert Symbols are defined below Indicates an imminently hazardous situation which if not avoided will result in death or serious injury These warning massages include the preventive actions those are indispensable to avoid danger A WARNING Indicates a potentially hazardous situation which if not avoided could result in death or serious injury These warning massages include the preventive actions those are indispensable to avoid danger Indicates a potentially hazardous situation which if not avoided CAUTION could result in minor injury or machine damage There are many hazardous situations that may occur during operation inspection and maintenance of the chuck used under various circumstances We cannot predict all of these hazards Accordingly
61. OIOIOIOIOIOIOIOIO1O 12 61 l P14 JIS 31 P14 JIS 19 P14 JIS NPIR 5 DENE
62. able or catalogue is a force at which the chuck will not suffer damage presuming those standard soft jaws or standard hardened jaws are used This maximum force may be used as required of course but ordinarily long term use under conditions of maximum force is not recommended To maintain long term gripping precision one must keep sufficient work holding force in relation to the cutting force and with adjustment for sufficient but not excessive gripping force the most effective performance will be achieved 4A WARNING The use of excessive input force will lead to breakage of chuck parts or bolts and sudden loss or gripping force If such a mishap takes place while the chuck is rotating the work piece may fly oft causing severe injury or death to the operator or bystanders 13 3 6 Precautions for Operation We are the chuck manufacturer and are not responsible for the safe operation of the combined chuck and lathe or machining center into which the chuck is installed There exist numerous rules and guides for overall safe operation among the most respected is ANSI B11 6 1984 Nonetheless while reference may be made to ANSI and or specifications mere mechanical compliance with ANSI and or other standards does not ensure safety All standards should be considered only as elements of an overall safety consideration and when considered alone constitute only minimum standards What follows is a partial enumeration of universal precaut
63. amic clamping force 70 Chuck size 6 8 10 12 HSPS12 205 2 mm 29 33 39 42 _ 6 4 1 Li 2 60 4 Static clamping force at position X 40 ZIA H3PS10 2 s 80 5 H3PS8 5 80 E 2 E HSS 2 E 40 10 2 0 2000 4000 6000 10 20 3 40 50 6 TO Speed r min Height from the end face of the chuck to clamping surface X mm 6 4 The example of hydraulic circuit for high low pressure changing and the characteristic of gripping force The following figure shows the fluctuation of gripping force when the input force is changed the state that the work piece is clamped The illustration shows an example of hydraulic circuit to change the pressure for rotating cylinder Note 1 Affected by various conditions the value of gripping force can t follow to the linear diagram as shown in the figure in accordance with the change of input force In case the precise control of gripping force is LL necessary the actual measurement is recommended cnl 2 In case that this chuck is used combined with a rotating cylinder Y x NI having check val
64. ce is a casting or forging part having a projecting gate or burr This may cause the work piece to slip out which may in turn cause severe injury or death to the operator or bystanders If this situation is possible begin tool contact with the work piece initially during a AA WARNING Severe personal injury may result if the operator mistakenly comes into contact with a spinning chuck whose top jaws or gripped work piece have irregular contours which are not readily visible while rotating A door or guard must be provided to prevent anyone from approaching the spinning chuck NOTE ANSI B11 6 1984 prescribes use of a door or a guard to keep the operator from approaching the rotating part s A DANGER Never operate the rotating cylinder selector valve while the spindle is rotating Otherwise the gripped work piece may come off and fly out NOTE ANSI B11 6 1984 prescribes the installation of a safety circuit to nullify opening or closing of the chuck during its rotation and the need to protect the operator from inadvertent opening or closing of the chuck usually by a shield ANSI B11 6 1984 also requires that when a foot pedal switch is used it must be protected from inadvertent operation 15 3 6 4 End of Operations 4A WARNING Remove the work piece from the chuck at the end of operations If the work piece is left gripped in the chuck the cylinder supply pressure may decrease or the work piece may fall oft due to
65. different from the recommended value lower or higher the bolts may break and the chuck and or work piece may fall out this presents a hazard that may cause severe personal injury or death to the operator or bystanders 7 Turn the draw screw counterclockwise After several turns the draw screw cannot be turned any longer Then turn it clockwise by the angle specified in Table 4 to give a gap between the draw sleeve and the end face of the chuck body NOTE The connecting rod should be retained at the advance end of the rotating cylinder The draw screw has a click steel ball and spring for anti rotation and therefore stop the draw screw at a point where its revolution becomes heavy and adjust the draw sleeve position Table 4 Chuck size _ 1 1 6 8 10 12 Turning angle number of turns 8 Install the pilot bushing and the top jaws to complete the chuck installation 9 If you installed the chuck by screwing the eyebolt into the chuck periphery remove the bolt 4A WARNING Be sure remove the eyebolt when the installation is carried out with using an eyebolt If you rotate the chuck with the eyebolt being screwed you may be caught by the part of your body or clothing and get injured 2 5 4 Inspection Operational resistance develops when there is some abnormality in the installation procedure If the chuck is used without removal of the resistance parts seizure or abnormal wear may occur causing marked shorten
66. er in relation to the chuck A installing socket C should be 0 040 0 050 mm in diameter I N Chuck Adapter C Spindle 2 5 3 Installing Chuck 1 Remove the top jaws and pilot bushing Fig 4 before installing the chuck 2 The 8 inch or larger chuck has a screw Ho n hole for the eyebolt on the periphery Screw the attached eyebolt into this hole and lift the chuck To lift and install the 6 inch chuck use the suspender belt 3 Advance the connecting rod to the advance end by activating the hydraulic circuit In this state the distance Re between the front end face of the chuck adapter and i Pilot Bushing f shown in Table 1 that of the connecting rod will be as A CAUTION If the dimension Re is less than that indicated in Table 1 the chuck cannot be installed Table 1 Fig 5 Chuck size 1 12 6 8 10 12 Re 1 mm 49 61 5 69 74 J EN J M16x2 M20x2 5 M24x3 M27x3 r S 3 M Top Jaw Long Wrench Connecting rod EE 21 Chuck adapter 4A WARNING Adjust the screw depth of the connecting rod Re to a proper length If the Re value is greater than that indicated in Table 1 the screw depth of the connecting rod is not long enough to fully engage with the draw screw This wi
67. furbished if the surface of the master jaw or the chuck body deteriorates so that gripping force is lost In addition depending upon the usage received by the chuck the gripping force should be measured periodically with a gage There should be a regular inspection for cleanliness as a function of the ability of the chuck to grip a work piece even though its gripping pressure may remain constant The chuck speed should be reviewed with each change in job Including reference to the feeding speed of a work piece a change in the size and weight of a work piece the composition of a work piece the type of cuts or machining performed and the speed or rate of cut AA WARNING Do not leave the chuck in the state where its top jaws is not tightened If the spindle is rotated in such a state the jaws will fly out causing serious or fatal injury to the operator or bystanders 17 Aside from damage to the chuck the chuck will be able to maintain a constant gripping force upon a work piece assuming that the hydraulic or pneumatic operating pressures do not change However the ability of the chuck to hold a work piece will deteriorate with wear and tear on the surfaces of the jaws of the chuck which will tend to reduce the coefficient of friction between the jaws and the work piece The ability of the jaws to hold the work piece will depend upon the work piece itself A larger diameter heavier work piece for example will exert greater force aga
68. he work piece Securely tighten the bolts with the specified torque Otherwise the bolts may become loose or damaged resulting in coming off or flying out of the parts or the work piece w The table below shows the bolt sizes and their tightening torque Tightening torque Bolt size M6 M8 M10 M12 M14 M16 Tightening torque N m 12 1 29 4 57 9 101 128 161 4A WARNING Replace lubricating oil periodically Failure to replace lubricating oil may remarkably shorten the lifetime of the chuck Replace lubricating oil once in a month of operation Use ISO VG68 lubricating oil or equivalent For all the chuck parts including consumables place an order with Howa Machinery Ltd Howa shall not be liable for any accidents caused by use of parts not supplied from Howa Any and all warranties are invalid unless only Howa s genuine parts are used Use eyebolts when mounting or removing the chuck Use the suspender belt when handing a 6 inch chuck and eyebolt when handling an 8 inch or larger chuck Ji Otherwise you may drop the chuck or suffer from lumbar injury due to excessive load NOTE The words of gripping force and clamping force are used as a synonym in this instruction manual Both words mean total force of clamping each jaw in a chuck 1 Construction and Operation 1 1 Model Coding The 3 jaw power change chucks are model coded as follows
69. hem We upon request will review drawings for the connecting rod AA WARNING The user must fabricate a connecting rod in accordance with the lathe used and the chuck which has been selected It is extremely important that connecting rod be sufficient to assure rigidity and strength Insufficient strength or rigidity will cause breakage of the connecting rod and instantaneous loss of gripping force to the chuck This may cause the work piece to be released during operation 2 4 Stroke Control Fig 2 Although the cylinder stroke of the rotating cylinder should not be necessary controlled according to the chuck plunger are draw sleeve stroke adjust the draw screw so that the _ 14 k a sleeve contacts the rear cover of the chuc Attach here Draw Sleeve Rear cover Chuck Body 2 5 Installing Procedure 2 5 1 Before Installation After taking the chuck out of the package box wipe off all anticorrosive oil clinging to it with a cloth permeated with cleaning oil 2 5 2 Installing Chuck Adapter Fig 3 Install the chuck adapter on the spindle end face 2 Then the chuck installing socket datum face should be 100051 machined in place 4 2 210 010 The clearance of the chuck adapt
70. ing of service life Once the installation has been completed be sure to check out the minimum operating pressure If it is too high remove the chuck and solve the trouble When a 4 rotating hydraulic cylinder corresponding to the chuck size indicated in the specifications page 21 is used the minimum operating pressure will be equivalent to when 0 5MPa or more is used 2 5 5 Balance When the chuck is additionally machined or equipped with jigs ensure that the chuck weight is balanced Unbalanced chuck will cause vibration and fail to maintain required machining accuracy When machining an unbalanced work piece take the eccentric mass of the work piece into consideration and rotate the chuck at a low speed This is because the centrifugal force due to eccentric mass applies to the top jaws The chuck balance described in this manual is based on the standard balance quality 4 mm s defined in JIS B0905 1992 and the unbalance amount of the chuck periphery is specified as shown in Table 5 International Standards that correspond to JIS B0905 1992 are 1501940 1 1986 and ISO8821 1989 Table 5 Chuksze 6 8 10 1 unbalance 9 2 3 4 6 3 Precautions For Use 3 1 Selecting Top Jaws The chuck is equipped with a set of standard soft top jaws We are ready to prepare standard hardened jaws and special top jaws as optional accessories at your request If necessary place an order your from nearest
71. inst the jaws of the chuck and therefore will more easily overcome the gripping capability of the jaws of the chuck Increase in the rpm will also add to the force which tends to pull the work piece out of the chuck and improper maintenance in the form of dirt rust improper or inadequate lubrication will also diminish the ability of the chuck to hold a work piece Finally the manner in which the work piece is machined in the lathe or machining center will determine the precise forces exerted on the work piece and therefore on the jaws of the chuck and may overcome the ability of the jaws to hold the work piece It is therefore absolutely required that the ability of the jaws of the chuck to hold the work piece be reviewed with each new set up or job and periodically during the course of a long job Machine operations of the lathe which produce forces sufficient to overcome the gripping force of the jaws of this chuck will cause the work piece to fly out which in turn may cause severe injury or death to the operator or bystanders 4 4 Parts List Parts Name Parts Chuck body Rear cover Retainer Pilot bushing Draw sleeve Draw stud Draw screw Round nut Crank lever Weight Fulcrum pin Plug Soft top jaw Plug for oil Spring Steel ball Hex socket head bolt Hex socket head bolt O ring Hex socket head bolt O ring 12 inch use six parts and other sizes use three parts Hex socket head bolt Hex s
72. ions which should be taken in the normal course of operation Particular steps beyond or in addition to those which will be discussed below must be determined by the individual user after a complete review of all aspects of the work to be done AA WARNING A failure to guard the machine as whole may lead to serious injury or death to the operator or bystanders 3 6 1 Before Gripping Work piece AA WARNING 2 Before beginning operations check to be sure that the pneumatic or hydraulic pressure needed to operate the chuck is being supplied to the rotating cylinder If not supplied or not sufficient the work piece could slip out and fly off as the cutting starts and may cause severe injury or death to the operator and or bystanders ANSI B11 6 1984 prescribes installation of an interlock circuit for preventing chuck rotation or an audible or visible warning system activated when the required pressure is not supplied to the cylinder gripping side Perform a test run at low speed before cutting to verify that the top jaws or the locator does not interfere with the turret or tools 4A WARNING AA WARNING To make sure that there will be no interference of the top jaws or locator with the turret or tools do a test run cycle at low spindle speed without work gripping Should there in fact be interference the resulting sharp collision may cause the top jaws or the locator to fly off which may lead to severe injury
73. ll mean that the screw will be broken and all of the gripping force will be lost immediately If this accident should occur the work piece may fly off and in turn may cause severe personal injury or death to the operator or bystanders 4 Insert the long wrench equipped from the front Fig 6 side of the chuck and check to see whether the draw screw can be turned 5 Hoist the chuck with the chain block and screw in the draw screw into the connecting rod until it can be tightened no more Spindle Long Wrench 203 6 Use extra care when operating the hydraulic or pneumatic circuit during the chuck installation If you actuate such circuits accidentally during chuck installation you may be caught between the chuck body and the spindle or between the top jaw resulting in injury Connecting Rod Adapter Draw Screw 6 Secure the chuck body to the chuck adapter using the chuck installing bolts provided as accessories Install for the periphery and the end face the chuck body do not deviate exceeding the limits indicated in Table 2 Table 2 Chuck size 6 8 10 12 Runout the outer periphery T I R 0 020 0 030 Runout the end face T I R mm 0 020 0 030 For the torque to be applied to the chuck installing bolt refer to Table 3 Table 3 Tightening torque N m 4A WARNING Fasten the chuck installing bolts with recommended tightening torque If the torque is largely
74. n such conditions the work piece will come off and may cause severe injury or death to the operator and or bystanders Lubrication with non specified lubricants may also permit extraordinary corrosion and or wear and will lead to a loss of gripping force 4A WARNING The operator and or bystanders may be seriously injured or killed WARNINGI if improper lubricants are used Improper lubricants may reduce gripping force of the chuck and permit work pieces to fly out of the chuck Failure to use an anticorrosive coolant can cause rust build up inside the chuck that increases friction This may reduce gripping force of the chuck and work pieces may fly out of the chuck This causes serious injury or death to the operator and or bystanders as well as damage to the machine WARNING 16 4 2 Disassembly and Cleaning Even with proper lubrication fine chips or scale can enter the chuck to jam the area of the sliding surfaces or draw sleeve thus preventing smooth operation Disassembly and cleaning must be done on a regular basis every 1000 hours When doing so inspect carefully for parts wear and breakage replacing as necessary 4A WARNING If the chuck interior becomes jammed with chips the gripping force will decrease or the jaw stroke will become short If cutting is performed under such a condition the work piece may be disengaged from the chuck causing severe injury or death to the operator and or bystanders A
75. ocket head bolt Button head cap screw Set screw Set screw Set screw Plug Grease nipple Seal washer O ring O ring O ring O ring O ring O ring O ring O ring 00 No PM 1 NWR w ww gt OO 18 14 36 Seal List Parts Name Seal washer DS 1H 8 Mitsubishi Cable industries Mitsubishi Cable industries DS 1H 10 Mitsubishi Cable industries DS 1H 10 Mitsubishi Cable industries O ring AS568 164 AS568 169 AS568 176 AS568 276 O ring P14 JIS P16 JIS P20 JIS P20 JIS O ring P42 JIS P50 JIS P56 JIS P65 JIS O ring AS568 127 G45 JIS 650 JIS G60 JIS O ring P36 JIS P44 JIS P50 JIS P55 JIS O ring AS568 131 AS568 136 AS568 141 AS568 145 O ring 553 NOK 563 NOK S71 NOK 580 NOK O ring P14 JIS P16 JIS P20 JIS P22A JIS O ring AS568 017 AS568 018 AS568 020 AS568 023 O ring P14 JIS P14 JIS 12 inch use six parts and other sizes use three parts 19 P14 JIS P14 JIS 5 Troubleshooting When there are any troubles with the operation of the chuck the following causes are likely Please check these before
76. of input force in the state that the work piece is clamped NOTE This manual regards the top jaw side as front and the draw screw side as rear 2 Installation 2 1 Unpacking Take the chuck out of the package box At this time be careful not to take out or lift it by hands This is because 8 inch or larger chucks weigh over 20 kg and lifting such a heavy chuck may cause damage to your lumbar or injury by dropping the chuck Instead break open the box and screw an eyebolt into the screw hole outside the chuck Then use a chain block to lift the chuck A CAUTION Use the eyebolt when installing or removing the chuck To lift a 6 inch chuck use a suspender belt To lift an 8 inch or larger chuck use an eyebolt You may drop the chuck or suffer from lumbar injury due to excessive load 2 2 Accessories The package box contains the accessories besides the chuck itself Please refer to the section 6 7 Accessories for particulars 2 3 Preparations for Installation Except the direct mount chuck of H3PS A type a chuck adapter is needed to install the chuck onto the lathe spindle Contact us if you need information on how to design a chuck adapter In addition to the chuck adapter a rotating cylinder a cylinder adapter a connecting rod and either a hydraulic or pneumatic pressure source are required to operate the chuck However please refer to the Rotating Cylinder Instruction Manual for what pertains to t
77. off If the torque is greater than that specified the crank lever and or top jaws will deform and defective operation will result leading to breakage and release of the top jaws and or work piece In either case the resulting flying off of work piece and or top jaws may lead to severe personal injury or death to the operator and or bystanders 3 3 Forming Top Jaws When the top jaws are installed they must be Fig 9 machine formed to align flush with the work piece When the work piece is gripped jaw stroke should be GOOD NO GOOD set so that the top jaw installation surface is in parallel D L jaw stroke with the chuck end surface ME ir ee In this condition jaw stroke is approximately the half of amp 2 mn full stroke GAS Forming Top Jaws page 11 12 is based on this e aM nS 1 ees condition 4 If the work piece is clamped by the jaw stroke other than that of above mentioned choose the range except GOOD NO GOOD one forth of full stroke from both terminuses Thus if you are gripping the outside diameter OD of the work piece with the jaws one fourth of the inside stroke should remain while you are gripping the inside diameter ID with the jaws the remaining portion of the 22 L jaw stroke 13 ow EL 1 ID gripping stroke should be the outside refer to Fig 1
78. or death to the operator and or bystanders To comply with ANSI B11 6 1984 section 4 3 2 you need to install a check valve and an accumulator in the connecting area with the chuck so that the hydraulic or pneumatic system does not loose pressure in case of failure Besides check valve and accumulator it is essential to install a shielding cover that separates the chuck and work piece from the operator or bystanders Without such a cover the work piece chips or tool fragments will fly out causing severe injury or death to the operator and or bystanders 14 3 6 2 When Gripping Work piece A CAUTION When gripping the work piece with the chuck be careful not to get any part of your body caught between the top jaws and the work piece or between the work piece and the machine The operator s hand may be injured NOTE ANSI B11 6 1984 prescribes installation of a shielding cover guard so that no part of the operator s body can be caught between a part of the chuck and the surface of the work piece when the space in between exceeds 1 4 inch with the jaws fully opened 3 6 3 During Cutting Operations In any of the following cases the tool impact on initial cutting contact may result in an unexpected cutting force in excess of chuck work holding capacity The back end of the work piece is away from the chuck s locator face The rotating center of the work piece is not aligned with the chuck rotating center The work pie
79. rface of top jaws Remove top jaws clean installation end thoroughly to remove dust Jaws fastening bolts tightened securely Fasten bolts sufficiently but not too much Jaws are not formed properly Confirm if the forming plug or the forming ring is in parallel with chuck s end face and if the forming plug or the forming ring is not deformed by gripping force Also check forming pressure and jaws surface roughness Jaws are deformed or jaws fastening bolts are extended due to excessive jaws height Lower the height of jaws as much as possible Excessive jaw height may reduce the service life of the chuck Deformation is caused at specific portion of jaws because a very heavy work piece is held by jaws only Try to grip the work piece at around the centerline to avoid eccentric distribution of load to any specific jaws Work piece is deformed due to excessive gripping force 20 Reduce the gripping force to a reasonable amount to assure proper machining 6 Specifications 6 1 Specifications Series number Specification Jaw movement Dia at X2 Draw sleeve stroke Cylinder stroke MPH outside mm 25 110 40 132 50 160 60 200 diameter for standara soft top aW Lae mm 130 175 150 210 1908 254 230 304 Max rotational speed r min 5700 3900 3400 3000 Max input force kN 24 40 58 76 Clamping force at Max input force kN 15 2
80. rication EE EE 16 4 2 Disassembly and Cleaning 17 4 3 Setting Safe Rotational Speed 17 d Ot Els DIU pe Da mend 18 5 Troubleshooting cite 20 Os Specifications MT 21 6 1 SpecificatioNnS poe URDU Ure 21 6 2 DIMENSIONS rcr di o e ta ca T oL cai Los 22 6 3 Gripping Force uoo nono ten ecd fed oxide ode Ge pedea bis 23 6 4 The example of hydraulic circuit for high low pressure changing and the characteristic of gripping force 23 6 5 Standard JAWS i 24 6 6 Allowable Machining Area of Chuck Body 24 OT ACCES e Mat 25 LMITED WARRANTY 25 Introduction 1 This instruction manual describes the 3 jaw power change chuck H3PS standard model 2 Please read this manual carefully and fully understand the procedures for installation operation inspection and maintenance before operating the chuck 3 Ignoring any instructions in this manual may result in a serious accident or machine damage leading to injury to the operator or personnel near the machine 4 Always keep this manual handy and use care not to lose it 5 Please contact us phone and fax numbers are shown below for information regarding this manual and the objective product Another copy of this manual is also available from the following address HOWA MACHINERY LTD MAC
81. ssary to perform the calculations The VDI Standard No 3 106 put out by the German Technicians Association is a good reference in this regard For your copy write Beuth Verlag GmbH Postfach 1 145 1000 Berlin 30 West Germany NOTE Howa is happy to send you a copy of the English version of the above standard upon request The gripping force during rotation can be determined from the chart in subsection 6 3 Gripping Force The values shown in this chart are obtained under the following conditions e Standard soft top jaws are installed The gripping force measuring instrument is held at the position that the each mounting surface for top jaw is parallel to the chuck body Gripped with maximum cylinder force The allowable maximum rotational speed is arbitrarily determined by Howa in consideration of the chuck performance and the strength of each part Hence this speed is not suitable to assure safety in every situation because it is greatly influenced by top jaw configuration weight dimensions and shape cutting force gripping force and the maintenance conditions All such influencing factors fall within the realm of user responsibility Excessively high rotational speeds for a given set of conditions may cause the work piece to fly off and may in turn cause serious injury or death to the operator or bystanders 3 5 1 Permissible Cylinder Force The permissible cylinder force indicated in the specification t
82. tained Note Depending on the shape of top jaws it can be necessary to detach the top jaws from the chuck before inserting the forming plug After forming top jaws detach the top jaws to take out the forming plug 12 3 4 Installing Stopper The power change chuck cannot grip stably if the work piece is not positioned in the chuck s axial turning direction To position the work piece here the work piece must be pressed against the chuck s work face but in some cases depending on the work piece configuration a stopper has to be equipped on the front face of the chuck When designing a stopper obtain Howa approval of the stopper drawings Accidents which occur using a stopper not approved by Howa at the engineering design stage will not be Howa s responsibility WARNING If the work piece is not positioned in the chuck s axial turning direction a stable grip will not be achieved If cutting is carried out in this state the work piece may fly off and may cause severe personal injury or death to the operator or bystanders 3 5 Setting Working Conditions The chuck using conditions includes not only cutting force but also many factors such as cutting force work gripping length work protruding length friction coefficient and rotational speed In order to determine the ideal working conditions all of these factors must be given due consideration with considerable time nece
83. ves gripping force does not follow the cylinder force when the hydraulic pressure is Static clamping force at position X x ES decreased f 7O VA IX This phenomenon occurs because hydraulic pressure is 290 LT kept by the function of check g 50 AA valves furnished in the cylinder 2 45 LS H3PS10 d even though the hydraulic 2 Mx pressure is decreased by the A ae E Q out side controller 20 5 H3PS6 10 M 3 PEE 7 20 40 60 80 4 Input force kN 4A WARNING Route solenoid valves so that the chuck keeps clamping the work piece even if the power is interrupted Otherwise the gripped work piece may come off and fly out 6 5 Standard Top Jaws The following table shows the dimensions of standard soft jaws 6 L L L 1 4 6 6 Allowable Machining Area of Chuck Body Tapped and or pin holes necessary for mounting a stopper or rough guide may be additionally machined on the chuck body within the boundaries defined below NOTE The periphery of each additional hole should be at least 2 mm away from the boundary The holes should be located and sized to maintain the chuck in balance Maximum depth X gt ORO LA PS a Cp 9 gt gt 0 i 2011 A xN o 3 X 79 S
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