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1. Nm2. 452 86O1 1900 1 TEL 052 408 1254 FAX 052 409 3766 SI 1MPa 10 197kgf cm2 lt 1N m 0O 10197kgf m
3. 1344 SO
4. OO2Omm Nm O 020 1 2 4 2mm owl ae 3 4
5. 0 ax H Q COED
6. Table of Contents Precautions ia cc aac esa aerate aia ra Sates are For Safe Operation ee Safety Precautions 1 Construction and Operation 1 1 Model Coding eR EN ee 1 2 Construction and Operation eee 2 Specifications hh 3 Installation 3 1 Cylinder Adaptor 3 2 Connecting Rod 3 3 Mounting and Anti rolling Guide 3 4 Piping ech ah hea a a Q ua aq a aq ohn a aqa aa 3 5 Drain Port 3 6 Hydraulic Unit Hydraulic Oil Hydraulic Circuit 3 7 Stroke Control aaa qaa vao Qaqa EE 3 8 Trial Operation SE EOE CR CRE RI ICR RPE Rm 4 Maintenance and Inspection 4 1 Check of Hydraulic Oil
7. 7 1 4 4 1 0
8. HH4CB AH PIRSVUYVSCERICORI SF e rar ae pls HH4CB ALA 2 HH4C
9. 1344 M12 M16 M20 M24 M27 M3O Nm 25 61 117 209 285 393 20 um TORS
10. 1 1 1 HH4C HH4CB HH4C 63 80 100 125 140 160 180 200 41 1 2 HH4C HH4CB HH4C
11. BL 7 gt gt k Ms x r w
12. OO020mmT IR 002O A a Ao ee g x I 3 3
13. 6OC 3 7 3 8 O 206 St 200 300r min 4 25
14. A OOO5mm 4 F7 0 005 lt LL Hy I 00O5 me A d 32
15. 15 o Z fa 283 511 ULE Ae J n HH4C
16. 25L min 3 5MPa 40 6OL A 4 4 32mm sec ISO VG32 32 RO32 DTE 32 32
17. OO15MPa 2 OE 1 7m EE N A Ts R I ak 36
18. 1 1 1 1 1 1 42 25 2
19. HH4CB lt 1 2 O5MPa EFT 4 5MPa CAA LIER 2 3 5
20. 4 HH4CB y K m 2 ot 08 A 4 2
21. HH4CB 1 4 67 GD 2 ISO VG32 3 0MPa SOC WA 4 0 Tm s O HH4CB T O Inim O O U gt 3 MBR DOSNCHSSFEAS THIONN CIDO R 3 1
22. 2 1 1 1 9O 4 lt HHA 25 20m 35
23. HH4C 24 23 21 20 19 O 17 18 16 15 13 14 O 12 1 1 2 5 12 gt
24. NON THROUGH HOLE ROTATING HYDRAULIC CYLINDER HH4C HH4CB INSTRUCTION MANUAL IMPORTANT Be sure to read this instruction manual thoroughly before operating the rotating cylinder Please save this manual When ownership of this product is transferred submit this manual to the new owner se RI FARTS at HOWA MACHINERY LTD 1 11 1 2 2 3 1 3 2 3 3 3 4 35 3 6 3 8 4 4 1 4 2 1 2 HH4C HH4CB
25. HH4CB HH4C 11 17 15 31 38 33 38 34 86 4 J 24 20 17 16 15 12 11
26. USH 25 NOK USH 30 NOK USH 35 NOK USH 40 USH 45 NOK Oo G75 JIS G95 9120 JIS JIS 135 5 568 JIS 258 AS568 5568 261 264 Oo P14 JIS P18 Oo P7O JIS PSO P115 JIS JIS P130 P150 JIS JIS JIS P165 P185 JIS JIS Oo G40 JIS G45 JIS 600422 JIS 60052414 JIS AC1029E0 NOK AC1314A0 NOK 6002 JIS 6003 JIS Oo 550 560 NOK HH4CB 25 29 23 27 22 21 35 34 16 17 33 32 12 28 26 24 20 19 31 38 37 36 14 11 13 7 9 6 AN INR 0 1 1 1 1 1 1 USH 25 NOK USH 30 NOK USH 35
27. 4 2 Overhaul and Parts List vat Yuta eta hipa nay LIMITED WARRANTY Precautions This instruction manual describes model HH4C HH4CB Rotating Hydraulic Cylinder Standard Model Please read this manual carefully and fully understand the procedures for installation operation inspection and maintenance before operating the rotating cylinder 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 Please save this manual and keep it handy at all times 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 N a oO ak HOWA MACHINERY LTD INDUSTRIAL EQUIPMENT GROUP MACHINERY DIVISION 1900 1 SUKAGUCHI KIYOSU AICHI 452 8601 JAPAN Phone International access code 81 52 408 1254 Facsimile International access code 81 52 409 3766 O The values of this manual are described in SI unit system Values of former unit system can be obtained by following calculations Pressure 1MPa 10 197kgf cm Torque 1N m 0 10197kgf m For Safe Operation 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 Symbo
28. ae 72220 on Other actuator pr oth ca 3 6 Hydraulic Unit Hydraulic Oil Hydraulic Circuit When providing a dedicated pump unit for the hydraulic unit determine the pump specifications by taking the cylinder size permissible oil pressure required gripping force etc into consideration Do not use a motor with too much power or a pump with excessive delivery capacity because the oil temperature will rise and this may cause problems The specifications of the pump unit for the rotating cylinder are as follows Delivery 25 L min pressure 3 5 MPa Tank capacity 40 60 L If the hydraulic unit is located in a machine on which the chuck is mounted its circuit can be branched for chuck operation In this case a dedicated pressure reducing valve and pressure gage must be provided in the circuit of the rotating cylinder Keep the surge pressure low If the pressure of the hydraulic unit is CAUTION adjusted using a pressure reducing valve with low response speed excessive surge pressure will be generated resulting in malfunction or damage to the rotating cylinder If the minimum discharge is less than the total amount of drainage and CAUTION I I I internal leakage it becomes impossible to maintain the internal pressure of t
29. NOK USH 40 NOK Oo G75 JIS G95 JIS G120 JIS G135 5568 2 JIS 58 AS568 2 OU P14 JIS Oo P8 JS P1O JIS Oo P7O JIS P115 JIS P130 JIS Oo G40 JS G45 JS 600422 JIS 6OO5ZZ JIS AC1029E0 NOK AC1314A0_ 6002 JIS JS Oo 550 NOK 560 JIS Oo S20 NOK Oo P18 NOK Oo 512 NOK
30. of oil that flows directly from the port under pressure to another not under pressure is called the amount of internal leakage The total amount of drainage noted in the specifications is important for determining the necessary discharge of the hydraulic pump Check Valve Bod Distributor shaft Model HH4CB has a built in check valve to prevent a sudden drop in internal pressure if a problem occurs the hydraulic system during spindle rotation The check valve is mounted in the distributor shaft which rotates with the cylinder body so the internal pressure can be retained regardless of oil leakage from the drain port Distributor Housing Distributor Cover Cylinder Piston Body Rod Cover 00 u Tl 11 HAF TSS q TI Fa L oJ Piston Rod il Sea Steel Ball Rod Seal Modle HH4CB A i Guide Bar 2 Specifications Specifications Model HH4C Series number Specifications Effective piston 20 30 0 26 9 Piston stroke Max speed Max pressure Mom
31. 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 20100126 18
32. with the specified torque Danger by discharge of workpiece caused by shortened jaw stroke due to loose screw Adhesive Use ThreeBond 1344 or equivalent Tightening torque for connecting rod Bolt size M12 M16 M20 M24 M27 M30 Attach a strainer in the hydraulic pressure supplying line Danger by seizure caused by foreign matters included in the rotating cylinder Use a strainer with 20 um filterability or better Order all parts for this rotating cylinder from Howa machinery Ltd Howa assumes no responsibility for accidents which occur when other than Howa genuine parts are used Any and all warranties are void unless only Howa genuine parts are used Use lifting belt when attaching or detaching rotating cylinder Danger by dropping of rotating cylinder from your hands Danger by an excessive stress causing your lumbar injury Turn off the power source before supplying hydraulic oil Keep fire and flame away during supplying Danger by flaming of hydraulic oil 1 Construction and Operation 1 1 Model Coding Model HH4C HH4CB non through hole rotating hydraulic cylinder is model coded as follows HH4C Size 63 80 100 125 140 160 180 200 1 2 Construction and Operation Without check valve With check valve Descriptions in this manual are based on model HH4C Supplementary descriptions are added for special function
33. al or damage of the part is found replace it them Disassembling procedure for the model HH4C rotating cylinder 1 Remove the seal bolts 24 and detach the distributor cover 23 2 Remove the snap ring 21 and detach the spacer 20 and wave washer 19 3 With a gear remover or like tool attached to distributor housing 17 extract the housing with bearing 18 and oil seal 16 4 Remove the snap ring 15 and detach the bearing 13 and washer 14 5 Remove bolt 12 and screw in the bolt to jack bolt hole of distributor shaft 11 and extract it 6 Remove bolt 1 and then screw in flat point lock screw to the jack bolt hole and remove rod cover 2 7 Remove the piston body 5 and guide bar 6 Note By removing bolt 12 the distributor can be removed without disassembling It is also possible to remove the piston body without disassembling the distributor Disassembling procedure for the model HH4CB rotating cylinder The composition of HH4CB is generally the same as HH4C In the following therefore the disassembling procedure of the check valve will be described 1 Remove the plug 11 to release inside pressure 2 Remove the screw 17 and slide cover 15 to the distributor housing side to expose end cap 31 Screw a proper screw into it and extract the cap 3 Force out the check valve body 38 and remove snap ring 33 from the valve body 4 Tap one end of the check valve body 38 with a plastic ha
34. at is most important in accomplishing the piping work is that the rotating cylinder must be protected from excessive stress A CAUTION The viscosity of the hydraulic oil will cause a slight amount of torque on the distributor when the rotating cylinder rotates If steel piping is used or the distributor is fixed to the lathe in order to compensate the reactive force caused by this torque excessive force will be applied to the rotating cylinder and will lead to problems Use flexible hose for the piping and use a fork with some margin as shown below for the anti rolling guide of the distributor The runout of the cylinder periphery should be 0 020 mm or less A WARNING Secure the mounting bolts Bolt size and tightening torque 10 M12 Tightening torque _ N m 101 0 020mm or less 14177 442mm 1 2mm 10 3 4 Piping Two hydraulic oil supply ports and one drain port are provided on the rotating cylinder distributor When pressure is applied to one that is on the cylinder side the piston body moves to the right and when pressure is applied to the other port on the distributor side the piston body moves to the left One of four drain port directions can be selected at 90 incr
35. considerable increase of the oil temperature resulting in rapid deterioration of the sealing materials and the hydraulic oil Keep the oil temperature below 60 C using a cooler 12 3 7 Stroke Control If the plunger stroke of the chuck is shorter than the piston stroke of the rotating cylinder the latter may be fl adjusted to the former Contact us before adjusting the stroke faa Guide Bar Coller Additional Process Spacer 3 8 Trial Operation 1 Pour the hydraulic oil into the oil port to the upper limit of the oil level gage 2 Set the hydraulic pressure to 0 5MPa or less and check for abnormality in the rotating cylinder operation Then gradually raise the pressure to the maximum pressure while checking for oil leakage and abnormalities in each part 3 Rotate the spindle at 200 to 300 r min and gradually raise the speed while checking for vibration and abnormal sound in each part 4A WARNING not to approach or touch the rotating section during spindle 4 The model HH4CB has a built in check valve The cylinder may become inoperative when the sealed pressure is raised In this case follow the procedures below 1 Stop the spindle 2 Raise the pre set pressure by 0 5 MPa and check the cylinder operation If the cylinder operates correctly bring the pre set pressur
36. e back to the original level 3 If the cylinder fails to operate correctly further raise the pre set pressure by 0 5 MPa each until it reaches 4 5 MPa while checking the cylinder operation When the cylinder operation is recovered bring the pre set pressure back to the original level 4 When the correct cylinder operation cannot be recovered even when the pre set pressure is brought up to the upper limit 4 5 MPa bring the pre set pressure back to the original level and turn off the power Then cool down the rotating cylinder to room temperature and repeat procedures 2 and 3 above 5 If the cylinder operation never recovers even after it is cooled the cylinder malfunction may be caused something other than the sealed pressure rising due to the check valve Loosen the draw screw of the chuck and take off the connection to check the cylinder operation Lowering the operating hydraulic pressure from the initial one may A CAUTION cause the malfunction of this cylinder This is caused by the reason that lower hydraulic pressure enclosed to the cylinder by the internal check valve cannot be released Therefore this phenomenon is not defective This phenomenon occurs when the lowered hydraulic pressure is one seventh or less to the initial one In the case of lowering the hydraulic pressure from the initial value activate the cylinder with intermediate hydraulic pressure and then lower to the target value 13 4 Maintena
37. ements relative to pressure port for convenient piping U 2 1 Drain Port Drain Port Piston moves leftward Piston moves rightward Piston moves rightward Piston moves leftward Drain Port Thoroughly remove any contaminant from the inside of the pipe before WARNING I ieee ate installing the hydraulic circuit Contamination may cause seizure of the rotating cylinder To maintain high performance of the rotating cylinder install a strainer with 20um filterability or better in the pressure supplying line 3 5 Drain Port Each of models included in this manual has oil seals to avoid the leakage under the certain back pressure at the drain port A CAUTION Applying excessive back pressure to the drain port may cause the external leakage The maximum back pressure allowed to the drain port is 0 015 MPa The maximum height of the drain hose passage above the center line of the rotating naer should be less than 1 7 m Drain hose is tortured IMore than 1 7 Never configure piping as shown below The hydraulic circuit of the other Return port and drain port The end of drain hose is sunk actuator is connected to the drain hose are connected in the tank of hydraulic unit lt
38. ent of inertia J Note 1 Weight kg Total leakage Note 2 L min Model HH4CB Series number Specifications Effective piston area cm 3 Extend Retract Piston stroke mm Max speed r min Max pressure MPa Moment of inertia J Note 1 kg m Weight kg Total leakage Note 2 L min Note 1 The four times of this value is equivalent to GD Note 2 ISO VG32 Pressure 3 0MPa Oil temperature at the exit port 50 C e Dimensions Model HH4C X Tm uo 210022 lt lt lt N O N I 2 Ro N1 Pressure Port Drain Port hd M4 _ Model HH4CB O TITI O D gt C O UZ Z lt lt lt 1 401 gt Pressure Port 3 Installation The rear end of the spindle to which the rotating cylinder is attached has various configurations Here a typical rear end configuration is shown as an example 3 1 Cylinde
39. he rotating cylinder Pay attention to this point when designing the hydraulic circuit We recommend using hydraulic oil that has viscosity of 32mm sec at 40 C ISO VG32 equivalent with abrasion resistance as well as defoaming characteristics Inappropriate hydraulic oil may extremely shorten the product life Recommended oil types are Daphne Super Multi Oil 32 Diamond Lub RO 32 Mobil DTE Light Shell Tellus Oil 32 Esso Teresso 32 A CAUTION Turn off the power source before supplying hydraulic oil Keep fire and flame away during supplying Model 4 rotating cylinder has a built in check valve to prevent sudden drop in the internal pressure when problem occurs in the hydraulic system during spindle rotation To keep the check valve A effective design the hydraulic circuit y X as shown below Rotating cylinder gt 2 X Hand valve Change over valve for griping of I D and O D 1 3 4 port 2 position change over valve Change over valve for piston movement direction If the piston movement direction is changed with the 4 port 2 position DANGER solenoid valve design the hydraulic circuit so as to chuck even if the solenoid valve is demagnetized Ignoring this instruction may result in the malfunction of the check valve and danger caused by discharging of the workpiece Continuous high speed operation causes a
40. ls 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 DANGER 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 could CAUTION result in minor injury or machine damage It is impossible to predict all hazardous situations that may occur during operation inspection and maintenance of the rotating cylinder under various circumstances Accordingly the warning messages described in this manual do not cover all hazardous situations Also there are too many operations that cannot or should not be performed using the rotating cylinder to be completely described in this manual We cannot assume any responsibility for damage or accidents caused through operation inspection or maintenance of the rotating cylinder that is not specified in this manual 1 Safety Precautions Read and understand the following precautions before using the rotating cylinder and observe them during operation DANGER Never turn off the power of the hydraulic pump during spindle rotation Danger by discharge of workpiece Never operate the select
41. mmer or the like and valve seat 34 steel ball 36 and spring 37 will come out Note The check valve is very sensitive to dust When assembling use utmost care not to allow tape chips and other foreign matter to enter the check valve 15 wParts list Model HH4C 24 20 17 16 15 12 11 Snap Ring Distributor Housing Wave Washer Distributor shaft Cap Screw Washer USH 40 USH 45 NOK NOK 5568 AS568 261 264 P18 JIS P165 P185 JIS JIS G45 JIS Boll Bearing AC1029E0 AC1314A0 Oil Seal NOK NOK Boll Bearing i RE S50 S60 O Ring NOK NOK 16 mae 28 ECC Model HH4CB J i HA 48 15 Se Distributor Housing Wave Washer Spacer Snap Ring Distributor Cover Seal Screw Distributor shaft Cap Screw Cover Sp
42. nce and Inspection 4 1 Check of Hydraulic Oil The bearing is cooled and lubricated with drain so that any special lubricating oil is not necessary as long as the hydraulic oil is clean Therefore for the sake of maintenance of this rotating cylinder it is most important to keep the hydraulic oil clean at all times Check the hydraulic oil in the following respects Remove of condensation When the temperature or humidity is high condensation may be accumulated on the bottom of the hydraulic unit tank Remove condensation once a week Cleaning of strainer Remove and clean the strainer of the hydraulic unit once a month by washing it in flushing oil and blowing compressed air through it from the inside Change of hydraulic oil Change the hydraulic oil once a year Preheating the oil helps when changing the oil Replace the old oil entirely with fresh oil If the old oil is extremely contaminated clean the interior of the tank with flushing oil before replacing it with fresh oil 14 4 2 Overhaul and Parts List The rotating cylinder will remain in excellent operating condition for many years as long as it is properly installed and the hydraulic oil is clean If failure should occur for any reason disassemble the rotating cylinder and replace defective parts if necessary A CAUTION Overhaul the seal and parts of the rotating cylinder in detail when the actuation of the piston reaches to every 250 000 strokes If the wear of the se
43. of model HH4CB The non through hole rotating hydraulic cylinder model 4 is composed of the cylinder piston body and distributor The piston body travels axially back forth in the cylinder by the hydraulic oil supplied from the distributor The movement of the piston body is transmitted to the chuck by the connecting rod connected to the threaded section on the right end of the piston body causing the jaws to grip and release the workpiece The distributor is composed of a distributor shaft that rotates with the Distri Cylinder butor shaft Piston Body Rod Cover Distributor Housing Distributor Cover 1 ET A F 2 _ Piston Rod Oil Seal Rod Seal Model 4 Guide Bar cylinder and a distributor housing that does not rotate Oil that leaks between the distributor housing and the distributor shaft is used to cool and lubricate the bearings and is then collected via the drain port The quantity of oil that leaks from the drain port is regarded as the amount of drainage and the quantity
44. or valve during spindle rotation Danger by discharge of workpiece Never enter the spindle cover during spindle rotation xx q lt Danger of entanglement with rotating section Route solenoid valve so as to chuck even if the power is interrupted Danger by discharge of workpiece Keep the hydraulic pressure constant while workpiece is gripped Danger by discharge of workpiece 4A WARNING Turn off the power before installation inspection and maintenance of the rotating cylinder 2 x Danger of entanglement with rotating section Cover the periphery of the rotating cylinder Danger of entanglement with rotating section Never open the spindle cover during spindle rotation Danger by discharge of parts in case of seizure of rotating cylinder 2 Keep the speed of the rotating cylinder and the chuck below the upper limit Danger by machine damage or seizure Never shock Danger by machine damage or seizure Secure mounting bolts to specified torque e Danger by discharge of workpiece due to loosened or damaged bolts caused by not using specified tightening torque Bolt size and tightening oqe Bolt size M10 M12 M16 lt Set hydraulic pressure to chuck specifications and keep it below the 7 upper limit Danger by damage of rotating cylinder or chuck caused by excessive hydraulic pressure Coat the threaded section of connecting rod with adhesive and tighten it
45. r Adaptor Determine the location for the rotating cylinder with interference with the lathe body direction and position of piping draft and other necessary factors taken into account Since the rotating cylinder is subjected to inertia force resulted from starting stopping and vibration of the spindle and cylinder output force the cylinder adaptor must be rigid enough to overcome these stresses Set the cylinder adaptor to the spindle so that the runout of the face and CAUTION ries spigot is 0 005 mm or less Excessive runout will cause vibration Provide a set screw to secure the screw joint Fabricate the spigot with a dimensional tolerance of F7 so that the runout when the rotating cylinder is installed can be corrected Since the rotating cylinder has been accurately balanced balance the adaptor very carefully without affecting the rotating cylinder balance 0 005mm or less Cylinder Adaptor Set Screw _ LL 8 lee eu nuvi 0 005mm 2 or less J l 1 Spindle 3 2 Connecting Rod The rotating cylinder output is transmitted to the chuck by via the connecting rod causing the jaws to grip and release workpiece The connecting rod is first screwed into the piston the rotating cylinder is installed and the chuck is connected to the connecting rod The connecting rod shall have enough bea
46. ring Lock Washer Screw Washer Snap Ring _ N N N N 1 Check Valve Body s asa HH4CB 140 USH 25 NOK NOK USH 35 NOK USH 40 NOK USH 45 NOK G75 JIS G95 JIS G120 JIS G135 JIS AS568 258 AS568 AS568 261 264 P14 JIS P18 JIS P8 JIS P10 JIS P12 JIS P70 JIS P90 JIS P115 JIS P130 JIS P150 JIS P165 P185 JIS JIS G40 JIS G45 JIS Boll Bearing 6004 2 5 6005 ZZ JIS Oil Seal AC1029E0 NOK AC1314A0 Boll Bearing 6002 JIS 6003 JIS O Ring 550 560 5 O Ring 20 NOK O Ring P18 NOK O Ring 12 17 NOK 10 41 41 4 4 4 1 1 4 oa 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
47. ring capacity to withstand the maximum thrust multiply the piston area by the maximum hydraulic pressure A WARNING Completely decrease the piston and the threaded section of the connecting rod coat the threaded section of the connecting rod with adhesive and tighten it to the specified torque Adhesive Use ThreeBond 1344 or equivalent Tightening torque for connecting rod Awrench flat is to be provided on the connecting rod as close as possible to the piston rod A CAUTION Place a spanner on the wrench flat provided on the piston rod to withstand the fastening torque for connecting rod Tightening the connecting rod holding the cylinder body may result in damage to internal parts due to fastening torque The runout of the tightening surface of the connecting rod to the piston rod should be within 0 020 mm T I R to prevent the excessive inclination of the connecting rod 0 020mm or less Connecting Rod A asas To prevent the excessive inclination due to the dead weight or vibration of the connecting rod attach a collar inside the spindle as close as possible to the chuck as shown below Spindle Rotating Cylinder P Piston Rod Wrench Flat Conecting Rod 3 3 Mounting and Anti rolling Guide Wh
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