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Summary of Contents for Rohm DURO-A
- Page 1 Translation of the original operating manual Power Chuck DURO-A Store for reference Version 1.3 • 21.01.2020...
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Page 3: Table Of Contents
Radius of the Centre of Gravity ............ 22 3.2.5 Permissible Operating Materials ............ 22 Transport.................... 23 Personal Protective Equipment and Personnel Qualification .... 23 Tapped Holes for Transport Purposes ............. 24 Assembly .................... 25 Personal Protective Equipment and Personnel Qualification .... 26 Power Chuck DURO-A... - Page 4 7.3.3 Checking the Device for Correct Operation........ 44 7.3.4 Inspection of the Power Chuck ............ 45 Cleaning the Device ................. 47 Personal Protective Equipment and Personnel Qualification .... 47 Storage ..................... 48 Troubleshooting.................. 49 Disposal .................... 50 Power Chuck DURO-A...
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Page 5: About This Operating Manual
About this Operating Manual This operating manual describes in detail the use, installation, assembly and maintenance of the power chuck DURO-A. The efficiency of the power chuck depends primarily on correct use and careful maintenance. This operating manual serves as the leading document and is provided on delivery of the product. -
Page 6: Warranty And Liability
RÖHM GmbH offers a warranty of up to 36 months on the power chuck DURO-A purchased by you after delivery of the goods. The warranty is ex- tended by a further 12 months in each case (max. 2 times/36 months) if a fee-based inspection is carried out by RÖHM GmbH within the first 12... -
Page 7: Conventions Of Presentation
Ø Marks an intermediate result of an operating instruction ü End result of an operating instruction List ▪ Marks elements of a list Marks comments within a list Contains useful information or further information. Power Chuck DURO-A 7 / 52... -
Page 8: Display Of Safety And Warning Instructions
Ø List of all measures which must be taken to prevent con- sequences. NOTICE Indicates a possible danger which may lead to damage to property if not avoided. Ø List of all measures which must be taken to prevent con- sequences. 8 / 52 Power Chuck DURO-A... -
Page 9: Safety
(Overview of Construction Sizes [} 19]). The power chuck DURO-A may be installed in machine tools for cutting and non-cutting processes. The power chuck DURO-A may be installed and used both horizontally and vertically (standing or suspended). Stationary machin- ing without rotation of the power chuck DURO-A is permitted. -
Page 10: Improper Use
2 | Safety The power chuck DURO-A can be used for both wet and dry machining. The permissible usage and environmental conditions must be observed (Envir- onmental and Operational Conditions [} 20]). The power chuck DURO-A is only intended for commercial use. -
Page 11: Obligations Of The Owner
(e.g. machining force, centrifugal force). In the event of a sudden drop or failure of the actuation energy, machining must be interrupted immediately and the tool or machine spindle stopped im- mediately. Power Chuck DURO-A 11 / 52... -
Page 12: Qualification Of Operating And Specialist Personnel
Work on gas, pneumatic and hydraulic equipment may only be carried out by mechanics trained for this purpose. Personal Protective Equipment and Personnel Qualification When working on and with the power chuck DURO-A, personal protective equipment must be worn. The owner is responsible for providing personal protective equipment. -
Page 13: General Dangers
Dangers due to Flying Parts During operation, the connection between the clamped workpiece and the power chuck DURO-A may become loose due to mechanical failure (e.g. due to defective parts) or incorrect operation (e.g. excessive speed). The work- piece may then fly out and cause serious crushing and impact injuries. -
Page 14: Skin Irritation Due To Operating Materials
Risk of Burns due to Hot Surfaces The power chuck DURO-A may heat up during operation. To prevent burns, do not touch the power chuck DURO-A after machining and allow to cool down before carrying out assembly and maintenance work. -
Page 15: Dangers Due To Power Failure
(e.g. prism) before the movement is star- ted. ▪ or, for example, in the case of cylinders and comparable moving com- ponents, the gap must be covered by a safety guard so as to be inac- cessible. Power Chuck DURO-A 15 / 52... -
Page 16: Procedure In The Event Of Danger And Accidents
3. Call a doctor. Ø Do not make any changes to the accident site. 4. Administer first aid. Ø Stop any bleeding. Ø Cool burns. 5. Report all accidents to a superior. 16 / 52 Power Chuck DURO-A... -
Page 17: Product Description
17 Screw plug 6 Threaded ring 18 Conical lubricating nipple The power chuck DURO-A is a 3-jaw chuck which is used to clamp regularly and irregularly shaped workpieces. The power chuck is attached to the machine spindle via a cylindrical or short-conical holder. - Page 18 The piston (3) is connected to the draw tube of the clamping cylinder via a threaded ring (6). Due to the axial movement of the piston (3), the 3 base jaws (2) are moved and carry out a radial stroke. 18 / 52 Power Chuck DURO-A...
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Page 19: Technical Specifications
Max. total clamping force [kN] Max. speed [ 5000 4200 4200 3150 Moment of inertia [kg*m²] 0.82 0.82 Weight without jaws [kg] 56.8 56.8 108.7 Adaption to short taper KK6/KK8/ KK11 KK11/ mounting DIN ISO 702-1 KK11 KK15 Power Chuck DURO-A 19 / 52... -
Page 20: Environmental And Operational Conditions
However, perfect operation of the power chuck must be ensured and checked regularly. With each jaw and tool change, the power chuck must be cleaned of coarse dirt with a broom or brush. Cleaning with compressed air is not permitted. 20 / 52 Power Chuck DURO-A... -
Page 21: Clamping Force-Speed Diagram
The reduction in clamping force is experimentally determined with the jaws assigned to the power chuck. It is largely independent of the initial clamping force at a speed = 0. Total clamping force kN – speed Speed rpm Speed rpm Power Chuck DURO-A 21 / 52... -
Page 22: Radius Of The Centre Of Gravity
1.40 3.30 3.2.5 Permissible Operating Materials The following grease is authorised for the power chuck DURO-A: ▪ RÖHM grease F 80 If a different lubricant to the one specified is used, the clamping force may be reduced considerably. 22 / 52... -
Page 23: Transport
Ø Wear personal protective equipment. Ø Do not remain under suspended loads. Personal Protective Equipment and Personnel Qualification When working on and with the power chuck DURO-A, personal protective equipment must be worn. The owner is responsible for providing personal protective equipment. -
Page 24: Tapped Holes For Transport Purposes
With a weight of more than 15 kg, the power chuck must be safely transpor- ted with suitable slings over the tapped transport holes. Size Weight [kg] 11.5 19.6 33.0 56.8 108.7 Size of sus- pension threads 24 / 52 Power Chuck DURO-A... -
Page 25: Assembly
Crushing injuries and cuts due to start-up of the machine dur- ing set-up work. Flying parts may cause serious injuries. Ø Disconnect the power supply before assembly. Ø Protect the machine against being re-started. Ø Wear personal protective equipment. Power Chuck DURO-A 25 / 52... -
Page 26: Personal Protective Equipment And Personnel Qualification
5 | Assembly Personal Protective Equipment and Personnel Qualification When working on and with the power chuck DURO-A, personal protective equipment must be worn. The owner is responsible for providing personal protective equipment. ▪ Personal protective equipment must be in perfect condition when carry- ing out work. -
Page 27: Disassembly / Assembly Of The Threaded Ring
4. Screw in the holding ring (7) with the assembly key (M). 5. Carry out assembly as described in Chapter Assembly of power chuck on machine spindle or intermediate flange [} 30]. It must be possible to turn the threaded ring/adapter. Power Chuck DURO-A 27 / 52... - Page 28 [} 30]. Threaded rings For this purpose, RÖHM GmbH offers neutral threaded rings: Threaded rings with thread Threaded ring with collar (up to size 210) (from size 245) max. thread length 28 / 52 Power Chuck DURO-A...
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Page 29: Assembly Of Intermediate Flange On Machine Spindle
[} 30]. Steel intermediate flange with cylindrical centring take-up as per DIN 6353 for 3-jaw chucks Attachment from front as per ISO 702-1 (DIN 55026/55021) and ASA B 5.9 A1/A2 with metric fixing screws (spindle side). Power Chuck DURO-A 29 / 52... -
Page 30: Assembly Of Power Chuck On Machine Spindle Or Intermediate Flange
▪ The machine is switched off and protected against being switched on again. ▪ The machine spindle or intermediate flange is clean. ▪ The machine spindle head or finished intermediate flange has been checked for radial and axial run-out. 30 / 52 Power Chuck DURO-A... - Page 31 10. Power chuck must be pressed against the spindle holder and screwed onto the machine spindle alternately with the three chuck fixing screws (10) (provisionally 5 Nm). 11. Remove the load-bearing equipment from the eyebolt and the eyebolt from the power chuck (only for size 210). Power Chuck DURO-A 31 / 52...
- Page 32 15. Check the jaw stroke, see Checking Jaw Stroke [} 44]. 16. Check the clamping force, see Checking the Clamping Force [} 44]. 17. Turn in the screw plug (17). ü Power chuck is mounted on the machine spindle. 32 / 52 Power Chuck DURO-A...
- Page 33 3. Move the piston (3) of the power chuck into the front position (jaws in "open" position). 4. Undo the screw plug (17), if fitted, on the front of the power chuck and remove. 5. Press the chuck holding screws (10) inwards. Power Chuck DURO-A 33 / 52...
- Page 34 (Checking the Tightness of Screw Connections [} 42]). 14. Check for correct operation, see Checking the Device for Correct Op- eration [} 44]. 15. Check the jaw stroke, see Checking Jaw Stroke [} 44]. 34 / 52 Power Chuck DURO-A...
- Page 35 18. Re-assemble the protective bushing (5). ü Power chuck is mounted on the machine spindle. Disassembly/dismantling from the machine spindle Disassembly or dismantling of the power chuck from the machine spindle is carried out in reverse order. Power Chuck DURO-A 35 / 52...
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Page 36: Operation
Skin irritations due to contact with lubricants. Lubricants may cause irritations in the event of contact with the skin. Ø When handling the power chuck, wear safety goggles, long work clothes and gloves. Ø Avoid skin contact with lubricants. 36 / 52 Power Chuck DURO-A... -
Page 37: Personal Protective Equipment And Personnel Qualification
Operation | 6 Personal Protective Equipment and Personnel Qualification When working on and with the power chuck DURO-A, personal protective equipment must be worn. The owner is responsible for providing personal protective equipment. ▪ Personal protective equipment must be in perfect condition when carry- ing out work. -
Page 38: Mounting The Top Jaws Onto Base Jaws
3 on base jaw 3.) Ø On assembly, always ensure that the dimension X is the same for all jaws. ü The top jaws are mounted. Tightening torques of the jaw holding screws in Nm Strength class 12.9 38 / 52 Power Chuck DURO-A... -
Page 39: Clamping The Workpiece
Clamping length too short, projection Additional support with centre or length too long bezel Clamping Ø too large Insert larger chuck Workpiece too heavy and jaw step Support with centre or jaw step ex- too short tended Power Chuck DURO-A 39 / 52... - Page 40 6 | Operation Incorrect Correct Clamping Ø too small Clamping on largest possible clamp- ing Ø Workpieces with cast iron or forged Clamping with self-seating inserts tapers 40 / 52 Power Chuck DURO-A...
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Page 41: Maintenance
Maintenance | 7 Maintenance Personal Protective Equipment and Personnel Qualification When working on and with the power chuck DURO-A, personal protective equipment must be worn. The owner is responsible for providing personal protective equipment. ▪ Personal protective equipment must be in perfect condition when carry- ing out work. -
Page 42: Maintenance Work
In the case of mounting screws for clamping devices, clamping inserts, top jaws, rigid stops, pre-clamped covers, equal- ising weights and comparable elements, strength class 12.9 is always to be used. 42 / 52 Power Chuck DURO-A... -
Page 43: Lubricating Conical Lubricating Nipples
1.0 kg 028975 5 kg 318310 25 kg 658047 1. Press RÖHM grease F 80 into the conical lubricating nipple of the basic body and the base jaws with the grease gun (for grease quantity, see table). Power Chuck DURO-A 43 / 52... -
Page 44: Checking The Device For Correct Operation
ID no.: ment system F-Senso Chuck 179800 (only for external clamping force measure- ment) Suitable jaws may have to be used. In the case of internal clamping, only the external clamping force can be measured. 44 / 52 Power Chuck DURO-A... -
Page 45: Inspection Of The Power Chuck
7. Remove all fitting keys from the base jaws (2). 8. Remove all base jaws (2) from the basic body (1). 9. Unscrew the conical lubricating nipple (18) from the power chuck. Ø The power chuck is dismantled. Power Chuck DURO-A 45 / 52... - Page 46 Cleaning with compressed air or a high-pressure cleaner is not permitted. Assembly of the power chuck The power chuck is assembled in reverse order. Observe correct numbering and position of the base jaws (2) and the piston (3). 46 / 52 Power Chuck DURO-A...
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Page 47: Cleaning The Device
Cleaning with compressed air or a high-pressure cleaner is not permitted. Personal Protective Equipment and Personnel Qualification When working on and with the power chuck DURO-A, personal protective equipment must be worn. The owner is responsible for providing personal protective equipment. -
Page 48: Storage
If the power chuck is not in use, the power chuck is to be stored in a dry, protected place in accordance with the storage temperature (Environmental and Operational Conditions [} 20]). In the case of longer storage (one year or more), the power chuck must be cleaned and lubricated before assembly. 48 / 52 Power Chuck DURO-A... -
Page 49: Troubleshooting
Check settings and cor- reached. rectly adjusted. rect if necessary. The workpiece cannot The workpiece diameter Use suitable top jaws or be inserted. is greater than the power chuck. clamping diameter of the power chuck. Power Chuck DURO-A 49 / 52... -
Page 50: Disposal
Obtain relevant information from the authorities. ▪ Rubber (e.g. O-rings) They must be disposed of in accordance with the valid regulations and the applicable local provisions. Obtain relevant information from the authorities. 50 / 52 Power Chuck DURO-A... - Page 51 Disposal | 11 Power Chuck DURO-A 51 / 52...
- Page 52 11 | Disposal 52 / 52 Power Chuck DURO-A...
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