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Translation of original operating manual

Power chuck

ROTA THW / THWB

Assembly and operating manual

Superior Clamping and Gripping

Содержание ROTA THW 1000

Страница 1: ...Translation of original operating manual Power chuck ROTA THW THWB Assembly and operating manual Superior Clamping and Gripping ...

Страница 2: ... purpose of technical improvement Document number 0889110 Version 02 00 16 10 2017 en SCHUNK GmbH Co KG All rights reserved Dear Customer thank you for trusting our products and our family owned company the leading technol ogy supplier of robots and production machines Our team is always available to answer any questions on this product and other solutions Ask us questions and challenge us We will...

Страница 3: ... 11 2 11 Malfunctions 11 2 12 Disposal 11 2 13 Fundamental dangers 11 2 13 1 Protection during handling and assembly 12 2 13 2 Protection during commissioning and operation 12 2 13 3 Protection against dangerous movements 12 2 13 4 Notes on particular risks 13 3 Technical data 17 3 1 Chuck data 17 3 2 Clamping force speed diagrams 18 3 3 Calculations for clamping force and speed 22 3 3 1 Calculati...

Страница 4: ...2 6 1 Installing and connecting 32 6 2 Mounting the chuck onto the machine spindle 32 7 Maintenance 35 7 1 Lubrication 35 7 2 Maintenance intervals 36 7 3 Technical condition 36 7 4 Disassembly and assembly of the chuck 36 8 Chuck mounts and Spare parts 38 8 1 Chuck mounts 38 8 2 Spare parts 39 9 Drawings 40 10 Translation of the original declaration of incorporation 43 11 Appendix on Declaration ...

Страница 5: ...trations in this manual are provided for basic understanding and may differ from the actual product design In addition to these instructions the documents listed under 1 1 2 Page 6 are applicable Presentation of Warning Labels To make risks clear the following signal words and symbols are used for safety notes DANGER Danger for persons Non observance will inevitably cause irreversible injury or de...

Страница 6: ...0 Warranty The warranty period is 24 months after delivery date from factory or 500 000 cycles if it is used as intended under the following conditions Observe the applicable documents 1 1 2 Page 6 Observe the ambient conditions and operating conditions 2 6 Page 9 Observe the specified maintenance and lubrication intervals 7 Page 35 Parts touching the workpiece and wear parts are not included in t...

Страница 7: ... also Calculations for clamping force and RPM in the chapter Technical data 3 Page 17 Not intended use A not intended use of the product is for example It is used as a press a punch a toolholder a load handling device or as lifting equipment the product is used for unintended machines or workpieces the technical data is exceeded when using the product 3 Page 17 if workpieces are not clamped proper...

Страница 8: ...amping points at a greater distance lead to greater surface pressure in the jaw guidance and can significantly reduce the clamping force If for constructional reasons the special chuck jaws are heavier than the top jaws assigned to the lathe chuck greater centrifu gal forces must be accounted for when defining the required clamping force and the recommended speed The maximum recommended speed may ...

Страница 9: ...y be serious injuries and significant property damage All work may only be performed by qualified personnel Before working with the product the personnel must have read and understood the complete assembly and operating manual Observe the national safety regulations and rules and general safety instructions The following personal qualifications are necessary for the various activities related to t...

Страница 10: ...r heat resistant protection gloves When dealing with hazardous substances wear protection gloves and goggles In case of moving parts wear tight protection clothes Notes on safe operation Incorrect handling of the personnel Incorrect handling and assembly may impair the product s safety and cause serious injuries and considerable material damage Avoid any manner of working that may interfere with t...

Страница 11: ...fy the malfunction Do not recommission the product until the malfunction has been rectified Test the product after a malfunction to establish whether it still functions properly and no increased risks have arisen Disposal Handling of disposal The incorrect handling of disposal may impair the product s safety and cause serious injuries as well as considerable material and environmental harm Follow ...

Страница 12: ...s to prevent jamming and crushing Incorrect lifting of loads Falling loads may cause serious injuries and even death Stand clear of suspended loads and do not step into their swiveling range Never move loads without supervision Do not leave suspended loads unattended Protection during commissioning and operation Falling or violently ejected components Falling and violently ejected components can c...

Страница 13: ...g via a protective cover protective fence or photoelectric barrier The protective cover and protective fence must be rigid enough to withstand the maximum possible movement energy EMERGENCY STOP switches must be easily and quickly accessi ble Check the function of the EMREGENCY STOP before start ing up the machine or system If this protective equipment is not working properly prevent the operation...

Страница 14: ...g force until the machine comes to a standstill and the workpiece can be secured e g using a crane or suitable lifting equipment The machines and equipment must fulfill the minimum requirements of the EC Machinery Directive specifically they must have effective technical measures to protect against potential mechanical hazards DANGER Possible risk of fatal injury to operating personnel if a jaw br...

Страница 15: ...nvironment where the chuck is used e g by cooling lubricants or oil Ensure that the working environment is clean before starting assembly and installation work Wear suitable safety shoes Follow the safety and accident prevention regulations when operating the chuck especially when working with machine tools and other technical equipment CAUTION Danger of limbs being crushed by opening and closing ...

Страница 16: ...f a chuck with a quick change jaw system the top jaws must not protrude radially beyond the base jaws used Exception The supporting jaw variant 3 protrudes beyond the chuck base jaw due to the construction of the jaw In this case the T nuts must always be inserted completely into the groove of the chuck base jaw CAUTION Hazard from vibration due to imbalanced rotating parts and noise generation Ph...

Страница 17: ...n amax mm ROTA THWB 210 265 315 400 500 630 Max actuating force kN 50 73 100 133 133 133 Max clamping force kN 90 132 180 240 240 240 Max rotation speed min 1 3000 3000 2800 2450 1600 240 Stroke per jaw mm 5 7 6 5 6 5 6 5 9 6 5 Piston stroke mm 20 23 23 23 30 34 Through hole mm 52 71 86 120 128 160 Operating temperature 15 C 60 C Centrifugal torque of the base jawMcGB kgm For the NCX chuck it is n...

Страница 18: ...grams refer to 3 jaw chuck Clamping force speed curves were determined with hard standard stepped jaws SHB SWB and SWB AL The maximum actuating force was introduced and the jaws were placed flush with the base jaw outer edge The chuck is in perfect condition and lubricated with SCHUNK LINO MAX special grease Should one or several of the above mentioned parameters be changed the diagrams are no lon...

Страница 19: ...Technical data 02 00 ROTA THW THWB en 19 Clamping force speed diagrams ROTA THW 400 120 Clamping force speed diagrams ROTA THW 500 128 Clamping force speed diagrams ROTA THW 630 160 ...

Страница 20: ...Technical data 20 02 00 ROTA THW THWB en Clamping force speed diagrams ROTA THWB 210 52 Clamping force speed diagrams ROTA THWB 265 71 Clamping force speed diagrams ROTA THWB 315 86 ...

Страница 21: ...Technical data 02 00 ROTA THW THWB en 21 Clamping force speed diagrams ROTA THWB 400 120 Clamping force speed diagrams ROTA THWB 500 128 Clamping force speed diagrams ROTA THWB 630 160 ...

Страница 22: ... jaws due to actuation of the lathe chuck during shutdown Under the influence of rotation the jaw mass generates an additional centrifugal force The centrifugal force re duces or increases the initial clamping force depending on whether gripping is from the outside inwards or from the inside outwards The sum of the initial clamping force Fsp0 and the total centrifugal force Fc is the effective cla...

Страница 23: ...ng from the outside inwards for gripping from the inside outwards NOTICE This calculated force must not be larger than the maximum clamping force ΣS engraved on the chuck See also Chuck data table 3 1 Page 17 From the above formula it is evident that the sum of the effective clamping force Fsp and the total centrifugal force Fc is multiplied by the safety factor for the clamping force Ssp Accordin...

Страница 24: ...l torque of the top jaws McAB is calculated as per Calculation example required initial clamping force for a given speed Required initial clamping force Fsp0 for a given speed n The following data is known for the machining job Gripping from the outside in application specific Machining force Fspz 3000 N application specific max speed of rotation nmax 3200 rpm Chuck data table RPM n 1200 rpm appli...

Страница 25: ... 3 jaws the total centrifugal torque is The total centrifugal force can now be calculated Initial clamping force during shutdown that was sought Calculation of the permissible speed in case of a given initial clamping force Calculation of the permissible speed nperm in case of a given initial clamping force Fsp0 The following formula can be used to calculate the permissible RPM for a given initial...

Страница 26: ...M of the chuck nmax 3200 rpm see Chuck data table 3 1 Page 17 This calculated RPM may be used Grades of Accuracy Tolerances for run out accuracy and axial run out accuracy corre spond to the Technical Supply Terms for lathe chucks as per DIN ISO 3089 Permissible imbalance The ROTA THW THWB in ungreased state without chuck jaws cor responds to the balancing quality class 6 3 according to DIN ISO 19...

Страница 27: ...cal equipment screw quality 10 9 Screw size M6 M8 M10 M12 M14 M16 M18 M20 M22 M24 M27 M30 Admissible torque MA Nm 13 28 50 88 120 160 200 290 400 500 1050 1500 Tightening torques for mounting screws used to attach top jaws onto the chuck screw quality 12 9 Screw size M6 M8 M10 M12 M14 M16 M20 M24 Max admissible torque MA Nm 16 30 50 70 130 150 220 450 3 6 ...

Страница 28: ...ton must allow a safety zone at the front and rear end position The machine spindle may only be started when the clamping piston has passed through the safety zone Only limit switches that meet the requirements for safety limit switches specified in DIN EN 60204 1 may be used When determining the necessary clamping force to machine a workpiece take the centrifugal force acting on the chuck jaws in...

Страница 29: ... opening gap between the jaw and the workpiece is less than 4 mm Wear protective gloves Observe the safety and accident prevention regulations during operation of the chuck especially in connection with machin ing centers and other technical equipment For each jaw guidance a jaw change bolt with hexagon socket which can be turned using the jaw change key is arranged on the chuck perimeter Turning ...

Страница 30: ...re engaged for the force transmission from the wedge bars to the base jaws or top jaws Exchanging and turning the top jaws When changing the top jaws the serration must be cleaned Chuck jaws for maximum clamping repeat accuracy must be turned or ground in the chuck under clamping pressure When turning or grinding ensure that the turning ring or turning pin is clamped by the top jaws and not by the...

Страница 31: ...step within their swiveling range Only move loads when supervised and do not leave unattended Wear suitable protective equipment CAUTION Risk of injury due to sharp edges and rough or slippery surfaces Wear personal protective equipment particularly protective gloves An eye bolt is included in the scope of delivery for transporting chucks over a certain size These chucks are only allowed to be tra...

Страница 32: ...the mount 6 2 Page 32 2 Chuck assembly 6 2 Page 32 3 Performing a functional check 4 2 Page 28 Mounting the chuck onto the machine spindle The item numbers specified for the corresponding individual components relate to chapter drawings 9 Page 40 Checking the chuck mounting Check the machine spindle nose and ready machined interme diate flange for radial and axial run out The permissible limit is ...

Страница 33: ...mbly belt until it is flush with the center of the spindle 5 Page 31 Screw the rotating threaded bush item 15 in the chuck onto the draw tube using the enclosed assembly key as far as this will go Tighten the chuck fastening screws item 17 alternately Check radial and axial runout at the checking edge Check the actuating force is functioning and is sufficient Move the cylinder into the front posit...

Страница 34: ...press press SCHUNK special grease LINOMAX into the lubricating nipple every 3 strokes For optimal grease distribution and to achieve the maximum clamping force close and open the chuck multiple times over the entire clamping stroke Check the clamping force and if necessary repeat the lubrication procedure At regular intervals check that the retainer ring is seated firmly ...

Страница 35: ...X special grease at each nipple For optimum grease distribution the clamping piston must travel the entire clamping stroke several times after lubrication Check clamping force repeat procedure if necessary Chuck Size 165 185 215 260 315 400 500 630 800 Number of strokes 2 2 4 4 4 6 6 6 6 Lubricate all three segments evenly in order to avoid imbalances For product information about LINOMAX see the ...

Страница 36: ...e properly the chuck has to be dis assembled cleaned and relubricated Disassembly and assembly of the chuck The item numbers specified for the corresponding individual components relate to chapter drawings 9 Page 40 The chuck can only be disassembled once it has been removed 6 2 Page 32 Unscrew the screws item 18 from the mount item 7 for sizes 400 and 500 Undo the screws item 20 several thread tu...

Страница 37: ...item 4 Check the angular position of the milled out portions when mounting the guide bushing This can be done with a base jaw Degrease and clean all parts and check them for damage Lubricate thoroughly with LINOMAX grease before installation Clean all individual components and check them for damage and wear Only original SCHUNK spare parts may be used The chuck is assembled in the same way but in ...

Страница 38: ... 215 52 R ROTA THW 250 65 R A 6 A 8 Z 170 Z 220 800 011 800 012 800 020 800 021 ROTA THW 265 71 R A 6 A 8 Z 170 Z 220 800 022 800 023 800 030 800 031 ROTA THW 315 86 R A 6 A 8 Z 220 Z 300 800 032 800 033 800 040 800 041 ROTA THW 400 120 R A 8 A 11 Z 300 Z 380 800 042 800 043 800 050 800 051 A 11 A 15 Z 380 800 052 800 053 800 060 THW 500 128 R THW 630 160 R A 11 A 15 Z 520 800 061 800 062 800 070 ...

Страница 39: ...ot covered by the warranty Item Description 1 Chuck body 2 Base jaw 3 Piston 4 Guide bushing 5 Wedge bar 6 Angle 7 Back plate 8 Cam bolt 9 Keeper bush 10 Excenter bolt 11 Jaw stop pin 12 Threaded pin 14 Special hex socket key 15 Draw bush 16 Retainer ring 17 Cylindrical screw 18 Cylindrical screw DIN EN ISO 4762 10 9 19 Cylindrical screw DIN EN ISO 4762 10 9 20 Cylindrical screw DIN EN ISO 4762 10...

Страница 40: ...Drawings 40 02 00 ROTA THW THWB en Drawings 9 ...

Страница 41: ...Drawings 02 00 ROTA THW THWB en 41 ...

Страница 42: ...Drawings 42 02 00 ROTA THW THWB en ...

Страница 43: ... 0800154 0800155 0800121 0800122 0800123 The partly completed machine may not be put into operation until conformity of the machine into which the partly completed machine is to be installed with the provisions of the Machinery Directive 2006 42 EC is confirmed Applied harmonized standards especially DIN EN ISO 12100 2011 03 Safety of machinery General principles for design Risk assessment and ris...

Страница 44: ...tial Requirements 1 1 1 Definitions X 1 1 2 Principles of safety integration X 1 1 3 Materials and products X 1 1 4 Lighting X 1 1 5 Design of machinery to facilitate its handling X 1 1 6 Ergonomics X 1 1 7 Operating positions X 1 1 8 Seating X 1 2 Control Systems 1 2 1 Safety and reliability of control systems X 1 2 2 Control devices X 1 2 3 Starting X 1 2 4 Stopping X 1 2 4 1 Normal stop X 1 2 4...

Страница 45: ... the machinery X 1 7 1 1 Information and information devices X 1 7 1 2 Warning devices X 1 7 2 Warning of residual risks X 1 7 3 Marking of machinery X 1 7 4 Instructions X 1 7 4 1 General principles for the drafting of instructions X 1 7 4 2 Contents of the instructions X 1 7 4 3 Sales literature X The classification from Annex 1 is to be supplemented from here forward 2 Supplementary essential h...

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