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Product Description | 3

DURO-A RC

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3.2.3

Clamping Force-Speed Diagram

The reduction in clamping force is experimentally determined with the jaw as-
signed to the power chuck. It is largely independent of the initial clamping
force at a speed = 0.

Total clamping force kN – speed rpm

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Содержание DURO-A RC

Страница 1: ... Röhm Straße 50 89567 Sontheim Brenz 49 7325 160 www roehm biz Translation of the Original Operating Manual Power chuck with quick action jaw replacement DURO A RC Version 1 1 16 04 2019 Store for reference ID 1356503 EN ...

Страница 2: ......

Страница 3: ...ing Materials 14 2 6 3 Eye Injuries due to Metal Chips 14 2 6 4 Risk of Burns due to Hot Surfaces 14 2 6 5 Dangers due to Imbalanced Workpieces 14 2 6 6 Dangers due to Power Failure 15 2 6 7 Danger of Crushing 15 2 6 8 Procedure in the Event of Danger and Accidents 16 3 Product Description 17 3 1 About this Power Chuck 17 3 2 Technical Specifications 19 3 2 1 Overview of Construction Sizes 19 3 2 ...

Страница 4: ... 34 6 5 Replacing Jaws 36 6 6 Clamping the Workpiece 38 7 Maintenance 39 7 1 Personal Protective Equipment and Personnel Qualification 39 7 2 Maintenance Interval 40 7 3 Maintenance Work 40 7 3 1 Lubricating Conical Lubricating Nipples 41 7 3 2 Lubricating Jaw Guides 42 7 3 3 Checking the Device for Correct Operation 42 7 3 4 Checking the Tightness of Screw Connections 43 7 3 5 Inspection of the P...

Страница 5: ...for safe work with the power chuck In addition to the regulations listed here the local and user related operating instructions and the professional accident prevention regulations are to be observed 1 1 Manufacturer Details RÖHM GmbH Heinrich Röhm Straße 50 D 89567 Sontheim Brenz Germany Tel 49 7325 160 Fax 49 7325 16492 Web www roehm biz E mail info roehm biz 1 2 Copyright This operating manual ...

Страница 6: ...ply of media due to conversion repair or other manipulations on the clamping devices insofar as this has not been carried out by personnel authorised by RÖHM All liability for consequential damage is excluded Incorrect operation or maintenance renders the warranty null and void Extended warranty 3 years RÖHM GmbH offers a warranty of up to 36 months on the power chuck DURO A RC purchased by you af...

Страница 7: ...n a list Contains useful information or further information 1 4 2 Display of Safety and Warning Instructions Safety and warning instructions are marked by pictograms The signal word and the colouring show the level of danger Observe the safety instructions to prevent personal injury and damage to property DANGER Indicates an imminently dangerous situation which may lead to death or permanent perso...

Страница 8: ...n to prevent con sequences 2 Safety Safety instructions and safety equipment serve to prevent accidents and dam age when working on the power chuck The safety instructions contain warn ings and basic safety instructions In addition to the safety instructions in this chapter the following chapters contain action related warnings Maximum protection of personnel and the environment from dangers and t...

Страница 9: ...with the original safety key of RÖHM GmbH The DURO A RC is a power chuck with individually adjustable jaws Only ori ginal RÖHM base jaws and original RÖHM one piece jaws may be used Third party makes may impair the safety of the power chuck DURO A RC and lead to damage The jaws used must comply with the following specifications the jaws must be designed as light as possible the clamping point of t...

Страница 10: ...sive atmospheres operation with the safety key inserted operation with unlocked jaws operation with modifications not approved by the manufacturer operation outside of the defined operating parameters operation with insufficient maintenance operation without safety equipment clamping of unsuitable materials compressible materials clamping of unauthorised materials plastics rubber glass or other no...

Страница 11: ... must be ensured that no machining can be carried out the operating pressure must be reduced to the lowest possible value the machine spindle speed must be considerably reduced To prevent the tension being released when the tool or machine spindle is ro tated the machine control must be programmed accordingly Before initial machining is carried out the operator must check e g by calcu lation wheth...

Страница 12: ...t experience of handling a power chuck are exposed to in creased risks of injury in the event of incorrect conduct especially during as sembly and maintenance work due to the clamping movements and forces Therefore the power chuck may only be assembled maintained and serviced by persons who have received special training or instruction for this purpose or who have extensive experience The qualifie...

Страница 13: ...out by qualified oper ating and specialist personnel see Qualification of Operating and Special ist Personnel 12 2 6 General Dangers When using the device there is a special potential of residual risks during assembly and set up work during operation and during maintenance and service work This potential risk cannot be completely eliminated considering the functional availability of the operating ...

Страница 14: ...rous metal chips may be produced during machining of metal During operation or when cleaning the power chuck DURO A RC sharp metal chips may be stirred up and cause eye injuries and cuts To prevent eye injuries and cuts wear personal protective equipment during operation and cleaning work Cleaning with compressed air or a high pressure cleaner is not permitted 2 6 4 Risk of Burns due to Hot Surfac...

Страница 15: ...e workpiece remains tightly clamped 2 6 7 Danger of Crushing The machine manufacturer and or operator must ensure that all danger to persons due to unavoidable travel movements is excluded For this purpose 2 handed operation for example or preferably suitable safety guards can be used If there is a gap of less than 25 mm after the distance is travelled there is generally a risk of crushing extremi...

Страница 16: ...t aid meas ures can be taken immediately 1 Shut the machine down immediately via the Emergency Stop button 2 Remove the person involved from the danger zone and sit or lay the per son down 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 ...

Страница 17: ...ct Description 3 DURO A RC 17 48 3 Product Description 3 1 About this Power Chuck 70 1 36 2 14 26 8 70 Safety key 8 Turning bolt 1 Basic body 2 Flange 36 Lubricating nipple 26 Chuck fixing screw 14 Base jaw ...

Страница 18: ... inserted and can be locked and unlocked independently of each other The power chuck is attached to the machine spindle via a cylindrical holder on the machine spindle In the case of conical holders an intermediate disk is re quired The actuating force is generated via a clamping cylinder electric hy draulic or pneumatic The power chuck consists of a base body 1 piston 4 wedge bars 5 driver pusher...

Страница 19: ...otal clamp ing force 64 64 100 100 135 Max speed 6 300 6 300 6 000 6 000 4 700 Moment of inertia kg m 0 056 0 056 0 14 0 15 0 32 Weight without jaws 12 74 13 5 21 2 24 34 7 ID no 183108 183111 183112 183114 183115 Size outer Ø 260 315 315 400 400 Jaw stroke 8 2 8 8 8 8 9 4 9 4 Chuck height 108 5 117 7 117 7 125 7 125 7 Connection di mension ZA 220 ZA220 ZA 300 ZA 300 ZA 380 Piston stroke 28 28 28 ...

Страница 20: ...onditions leads to faster corrosion and may reduce the useful life Potentially explosive environments No Ambient temperature at place of oper ation 5 C to 60 C Ambient temperature for storage 5 C to 60 C Dry and wet machining Wet machining permitted with cooling lubricants Pollution of the environment caused by the machine itself is permitted How ever perfect operation of the power chuck must be e...

Страница 21: ...3 2 3 Clamping Force Speed Diagram The reduction in clamping force is experimentally determined with the jaw as signed to the power chuck It is largely independent of the initial clamping force at a speed 0 Total clamping force kN speed rpm ...

Страница 22: ... RC personal protective equipment must be worn The owner is responsible for providing personal pro tective equipment Personal protective equipment must be in perfect condition when carrying out work Defective safety equipment is to be replaced immediately Observe information on personal protective equipment posted in the work ing area During rotational operation of the power chuck DURO A RC no pro...

Страница 23: ...ng torque of the screws Crushing due to falling of the power chuck Ø Use tapped holes for transport purposes Ø Observe tightening torque of the screws Ø Wear personal protective equipment WARNING 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 s...

Страница 24: ...ndstill Wear protective gloves Wear safety goggles Wear safety shoes Work on and with the power chuck may only be carried out by qualified oper ating and specialist personnel see Qualification of Operating and Special ist Personnel 12 5 2 Assembly on Intermediate Disk Assembly of an intermediate disk is only necessary with conical holders Intermediate disk cleaned power chuck cleaned 1 Mount the p...

Страница 25: ...rs a With collar 12 13 13 12 M 1 Unscrew the stop disk 13 from the piston 4 with the assembly key provided M 2 Take out the threaded ring 12 3 Insert the special threaded ring adapter with collar for the correspond ing draw connection machine into the piston 4 Screw in the stop disk 13 with the assembly key M 5 Carry out assembly as described in Chapter Assembly on Machine Spindle 28 It must be po...

Страница 26: ...9 85 9 102 9 127 5 161 9 D2 64 9 80 9 96 9 119 9 149 9 D3 17 0 17 0 21 0 25 0 25 0 L1 39 8 43 8 53 0 55 5 50 L2 4 8 4 8 5 0 5 5 8 0 Max thread size M60 M75 M90 M110 M138 Min adapter length L1 25 26 27 31 38 The operator or manufacturer is fully responsible for the design of the threaded ring RÖHM GmbH assigns this to the operator or manufac turer of the threaded ring ...

Страница 27: ...12 and tighten Ø A groove flat or borehole is usually fitted on the circumference S to hold it 2 Carry out assembly as described in Chapter Assembly on Machine Spindle 28 Alternatively 1 Previously mount the special threaded ring adapter with thread 12 1 for the corresponding draw connection machine onto the draw tube 2 Carry out assembly as described in Chapter Assembly on Machine Spindle 28 ...

Страница 28: ... cleaned The cylinder or intermediate plate is checked for concentricity and axial run out 1 Disassemble the protective bushing 2 Move the draw tube into front position 3 Move the piston of the power chuck to rear position 4 Screw the crane lug into the power chuck 5 Correctly attach the load bearing equipment to the crane lug 6 Position the power chuck on the machine spindle ...

Страница 29: ...raw tube 1 as far as it will go with the assembly tool 3 provided Ø It must be easy to turn the threaded ring 2 Otherwise readjust the height of the crane 1 2 3 8 Move the draw tube back and screw the power chuck onto the machine spindle with three chuck holding screws provisionally 5 Nm ...

Страница 30: ... screws on the machine spindle with the permissible tightening torque Checking the Tightness of Screw Con nections 43 14 Re assemble the protective bushing ü Power chuck is mounted on the machine spindle 6 Operation CAUTION Danger of crushing when clamping the power chuck Trapping of fingers Ø Do not hold fingers between the workpiece and the top jaws or between the top jaws when clamping the powe...

Страница 31: ... equipment Personal protective equipment must be in perfect condition when carrying out work Defective safety equipment is to be replaced immediately Observe information on personal protective equipment posted in the work ing area During rotational operation of the power chuck DURO A RC no protect ive gloves are to be worn Hand protection is only to be worn during trans port assembly and maintenan...

Страница 32: ... 1628 The values in the table apply per jaw i e the individual value must be multiplied by the number of jaws in the chuck 6 3 Inserting Jaws NOTICE Actuation of the piston 4 if a turning bolt 8 is set to UNLOCK Damage to the power chuck Ø Only activate the piston 4 of the power chuck when the turn ing bolts 8 are set to LOCK or if no safety key 70 is inserted The jaws of the power chuck are indiv...

Страница 33: ...e bar Observe the labelling of the jaws and wedge bars jaw 1 in wedge bar 1 jaw 2 in wedge bar 2 jaw 3 in wedge bar 3 5 Push the jaw into the required position until the spring bolt perceptibly locks into the tooth space Ø The jaws must not be positioned beyond the marking ...

Страница 34: ...s set to UNLOCK Damage to the power chuck Ø Only activate the piston 4 of the power chuck when the turn ing bolts 8 are set to LOCK or if no safety key 70 is inserted The jaws of the power chuck are individually adjusted and unlocked Repeat the following instructions for each jaw 1 Move piston into front position 2 Insert the safety key into the relevant turning bolt until the pressure point is re...

Страница 35: ...5 48 4 Move the jaw to the required position until the spring bolt perceptibly locks Ø The jaws must not be positioned beyond the marking 5 To lock the jaw turn the safety key counter clockwise to LOCK 6 Remove the safety key ...

Страница 36: ...to LOCK or if no safety key 70 is inserted The jaws of the power chuck are individually replaced and unlocked Repeat the following instructions for each jaw The guide must be lubricated with a brush each time the jaws are re placed The jaws are intact 1 Move piston into front position 2 Insert the safety key into the relevant turning bolt until the pressure point is reached 3 To unlock the jaw tur...

Страница 37: ... the jaws and wedge bars jaw 1 in wedge bar 1 jaw 2 in wedge bar 2 jaw 3 in wedge bar 3 7 Push the jaw into the required position until the spring bolt perceptibly locks into the tooth space Ø The jaws must not be positioned beyond the marking 8 To lock the jaw turn the safety key counter clockwise to LOCK ...

Страница 38: ...ully open the power chuck Ø The jaws move to the outermost position 2 Position the workpiece 3 Close the power chuck Ø The jaws fix the workpiece ü The workpiece is clamped Incorrect Correct Clamping length too short projection length too long Additional support with centre or bezel Clamping Ø too large Insert larger chuck Workpiece too heavy and jaw step too short Support with centre jaw step ext...

Страница 39: ...ment must be in perfect condition when carrying out work Defective safety equipment is to be replaced immediately Observe information on personal protective equipment posted in the work ing area During rotational operation of the power chuck DURO A RC no protect ive gloves are to be worn Hand protection is only to be worn during trans port assembly and maintenance and as long as the power chuck DU...

Страница 40: ... cycles Checking the Device for Correct Operation 42 After 30 000 clamping cycles or after 3 months depending on the conditions of use Visually inspect wear parts Weekly Checking the Tightness of Screw Connections 43 Weekly Visually inspect jaw screws Weekly Replace jaw screws Annually Inspection of the Power Chuck 44 Annually 7 3 Maintenance Work CAUTION Skin irritations due to contact with lubri...

Страница 41: ...29093 Recommended Röhm grease F 80 ID no 0 1 kg 630869 0 25 kg 304345 0 5 kg 308555 1 0 kg 028975 5 kg 318310 25 kg 658047 1 Press Röhm grease 80 into the conical lubricating nipple with the grease gun for grease quantity see table 2 Move through the complete stroke several times Ø The grease is distributed Ø After 400 clamping cycles move through the complete stroke again at least twice ü The pow...

Страница 42: ...3 Checking the Device for Correct Operation Correct operation of the power chuck must be checked during commissioning after assembly and in the course of maintenance work 7 3 3 1 Checking Jaw Stroke 1 Insert base and top jaws see Inserting Jaws 32 2 Move the clamping cylinder once into the front and rear position Meas ure the jaw stroke of the base and top jaws and compare with the table Overview ...

Страница 43: ...xternal clamping force can be measured 7 3 4 Checking the Tightness of Screw Connections If screws are replaced or undone incorrect replacement or incorrect attach ment may lead to dangers for persons and objects For this reason for all holding screws the screw recommended by the manufacturer of the screw must be used and the tightening torque applied in accordance with the screw quality For cylin...

Страница 44: ... the power chuck must be completely dismantled cleaned and re assembled Worn or damaged components must be replaced during the in spection Disassembly and dismantling of the power chuck 1 Move piston of the power chuck into front position 2 Remove jaws 1 3 from the guides Replacing Jaws 36 3 Screw the crane lug into the power chuck 4 Correctly attach the load bearing equipment to the crane lug 5 U...

Страница 45: ...g bolt outwards 20 Unscrew the conical lubricating nipple from the power chuck Ø The power chuck is dismantled Replacement of wear parts 1 Check the dismantled power chuck for wear and damage 2 Replace worn and damaged parts with OEM replacement parts ü Wear parts are replaced Cleaning the power chuck Thoroughly clean the dismantled power chuck with a broom brush or cleaning cloth and free of grea...

Страница 46: ... completely forwards The adapter may be too short The power chuck runs with an imbalance The jaws are not in the same position Unbalanced workpiece clamped Check jaw position and correct if necessary Measure distance of the jaws to the outer Ø Balance workpiece or re duce speed The tensile force is not reached The cylinder is incor rectly adjusted Check settings and cor rect if necessary The jaws ...

Страница 47: ... in an environment ally way in accordance with the valid regulations Metals Metals must be recycled They must be disposed of in accordance with the valid regulations and the applicable local provisions Obtain relevant informa tion from the authorities Plastics They must be disposed of in accordance with the valid regulations and the ap plicable local provisions Obtain relevant information from the...

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