Forkardt Manualchuck Manual PSA
Contents
1. 60 100 p 710 800 800 900 500 1000 1000 1200 350 3 4 Chuck mounting bolt tightening torques Bolts according to DIN 912 Quality 10 9 Type according to DIN 267 Bolts according to DIN 7984 Quality 10 9 Type according to DIN 267 3 5 Jaw mounting bolt tightening torques Bolts according to DIN 912 Quality 10 9 Type according to DIN 267 Thread M6 M8x1 12 1 5 Mi6x15 M20 Tightening torque Nm Maxbotiad N 19200 BA No PSAE SET UP AND FUNCTION a 4 0 4 1 4 2 gt gt Set up and function Hand operated chuck type PSA The gripping force of a hand operated chuck largely depends on the force application princi ple i e how gripping force is generated and transmitted to the gripping jaws This is a simple work piece chuck with which work pieces of all shapes can be clamped both centrically and eccentrically Faceplates have four individually adjustable gripping jaws as standard i e they are not operated via a central drive The possibility of individual adjustment over virtually the entire faceplate diameter allows work pieces to be positioned and clamped at different points on the faceplate The drive transmission elements steel spindles and bolts are made of case hardened steel and must be lubricated at regular intervals Compared to other manufacturers our steel spind le has double bearings for safety to2. 22 PSAE GENERAL INFORMATION ON pocumentarion 1 0 General information on documentation 1 1 This user manual contains the essential information for the proper use of the clamping device It is addressed to technically qualified people Qualified people are e those who have received instruction on using the clamping device those who have received training on setting up and repairing clamping devices and work as repair and servicing staff LS For the operation maintenance and repair of the clamping device it is essential that the information in this manual is read and understood We reserve the right to make technical changes to the descriptions and statements in this instruction manual that are essential to improve the clamping device The manual may not be copied disseminated or used for competitive purposes in full or in part The copyright for this manual belongs to FORKARDT DEUTSCHLAND GMBH Explanation of the symbols Safety advice to prevent danger to life or reduce damage to property is shown in this manual by the symbols and pictograms indicated here indicates potential risk Death severe physical injury or substantial dama ge to property may occur if the precautions are not undertaken or the safety advice not adhered to LS indicates important information on avoiding damage to property or undes irable operating states D indicates information on handling o
3. BA No PSAE Edition 02 2013 F amp RKARDI 3 0 3 1 3 2 Technical data Note Read and precisely follow these operating instructions before unpacking and commis sioning the hand operated chuck type PSA The hand operated chuck type PSA may only be used maintained and repaired by per sons over the age of 18 who are familiar with the operating instructions Application and intended use The hand operated chuck type PSA called faceplate in the following is operated with a chuck key The force applied to the chuck key is transmitted to the base jaws and corresponding top jaws via the screw and generates the force necessary to grip the work pieces to be machined The hand operated chuck type PSA must only be used for the intended purpose The intended purpose is the clamping of work pieces on lathes and other machine tools rotating The maximum torque maximum gripping force and maximum speed of the hand ope rated chuck must not be exceeded The permissible speed or necessary gripping force must be determined for the respective machining operation in compliance with the relevant safety codes of practice e g VDI 3106 The intended use also includes observing the commissioning assembly operating and maintenance conditions specified by the manufacturer Use for any other than the intended purpose is regarded as misuse The manufacturer disclaims all liability for any damage attributed to such use BA No
4. depends on the magnitude of the gripping force available in a static condition the weight of the top jaw and its gravity radius Gripping force The maximum gripping force Fspmax Fspo specified in the table in section 3 3 2 on page 9 can only be achieved under favourable conditions Preconditions are perfect condition of the hand operated chuck optimal lubrication of all sliding surfaces gt d 25 e maximum torque on chuck key e short jaw overhang e static n 0 or slow speed The gripping force in a static condition is measured with a static gripping force meter e g SKM 1200 1500 SKM 1200 1500 see also publication 930 10 02D For strength calculations e g for the design of special top jaws the Fspmax value in the table can be used for reference Operating gripping force Fsp The operating gripping force Fsp is the total gripping force daN of all gripping jaws base jaws with top jaws during operation and is a minimum value for the usable grip ping force under normal operating conditions This is understood to be the e perfect condition and e adequate lubrication of all sliding surfaces of the power chuck BA No PSAE F amp RKARDI See one Edition 02 2013 5 3 1 5 4 The hand operated chuck data shows the gripping force in a static condition Not only this value alone is important for operation The base jaws also have a con siderable influence of the operation of a hand operated chuck
5. 69247015 DP169247002 DP169247004 DP169247003 15 DP240500000 500 DP169586016 DP169586015 DP169586002 DP169586004 DP169586003 17 DP240500000 560 DP169586016 DP169586015 DP169586002 DP169586004 DP169586003 17 DP240500000 610 DP169930016 DP169930015 DP169930002 DP169930004 DP169930003 19 DP261500000 630 DP169930016 DP169930015 DP169930002 DP169930004 DP169930003 19 0 261500000 710 DP169944016 DP169944015 DP169930002 DP169930004 DP169930003 19 DP261500000 800 DP169955016 DP169955015 DP169955002 DP169955004 DP169955003 22 DP280500000 900 DP169955016 DP169955015 DP169955002 DP169955004 DP169955003 22 DP280500000 1000 DP169974016 DP169974015 DP169974002 DP169974004 DP169974003 22 DP280500000 1200 DP169974016 DP169974015 DP169974002 DP169974004 DP169974003 22 DP280500000 PSAE Edition 02 2013 F amp RKARDI 10 0 Appendix 10 1 Tools and accessories Lubricating grease PF 5 and PF 6 grease gun see table Degreasers and preservatives must be provided by the customer but can be ordered from us Designation ident No Contents Special grease 101400 84 1 0 kg Special grease 101400 88 1 0 kg iui 10 2 List of related publications Gripping force meter SKM 1200 1500 930 10 02D BA No PSAE DECLARATION F2RKARDT OF INCORPORATION Edition 02 2013 11 0 Declaration of incorporation The manufacturer FORKARDT Deutschland GmbH Heinrich Hertz Str 7 D 40699 Erkr
6. F2RKARDT PSA INDEPENDENT CHUCKS AMERICAN VERSION BILSING SYSTEM ENGLISH OPERATING INSTRUCTIONS BA No PSAE FS2RKARDT CONTENTS Edition 02 2013 Contents 1 0 General information on 3 1 1 Explanation of the Symbols 52459 4 08601 dase ey S CRI FEE ERR D 3 2 0 General safety advice 4 2 1 General t I TT 4 2 2 Intended Use css Eb REA ERE uu mE ER RA ee 4 2 3 Transport st rage a5 ua QR wx tenon Eo L ENDE 5 2 4 Operating informati n es a Wa acie CR oe we a 5 2 5 Maintenance and 5 2 6 Safety technology conditions for clamping devices 6 3 0 Technical data irri e y eee eit eee ee S ee EUR RW Rn n 7 3 1 NOE fas PCT 7 3 2 Application and intended use 7 3 3 Hand operated chuck components 8 d Cylindrical machining centres iq xau S AI boa IR ede ROC IR EP 8 3 3 2 Important data at a glance uud uas eed cs Roa C d dea ROCA CIC C RU ac Se Rd 9 3 4 Chuck mounting bolt Tightening torques issues Exe REPARA
7. PSAE F amp RKARDI eee Edition 02 2013 3 3 Hand operated chuck components 3 3 1 Cylindrical machining centres From size 355 with T slot and clamping slots Body PSA LN Bp NEN Bezeichnung Base jaw Spindle bolt Spindle bolt open Socket head screw Socket head screw BA No PSAE Edition 02 2013 F amp RKARDI 3 3 2 Important data at a glance Chuck 250 55 400 450 59 seo 610 5 8 9 5 T8 1 75 Doo 39 30 0 1 329 eE 99 95 E 329 19836 18536 172 172 220 5 Armin 30 35 R2 min Max torque Chuck PSA 710 740 so 89 59 900 1000 1000 1200 900 500 1000 1000 120 t is 345 750 356 350 365 fo eo 329 120 325 seo mao Meo Meo o5 Armm so so s
8. RE EE ra 9 3 5 Jaw mounting bolt tightening feres iuueni mes RA Cy ach A ROC we RC do 9 4 0 Set up and functio E ee oN ee E REQUE m RE dd 10 4 1 Hand operated chuck type PSA 10 4 2 23 PMCID 10 5 0 Gripping TOrCe soo cee edt rk er sor eure Sa eee ee 11 5 1 EC uc m E TTPDKTTTPITTTTT 11 5 2 ase EET 14 5 3 Operating gripping force 11 ei e neenon US arp dug aoe hae 12 5 4 Determination of the necessary gripping force Fspz for a machining operation 12 6 0 ASSOMDIY cc id cee eee hae eee sade ake ee cae 14 6 1 Measures prior to assembly 14 6 4 4 Checking the spindle nose for receiving the chuck flange 14 6 1 2 Checking the mounted chuck 14 7 0 Starting and operation 15 7 1 Notes 255 5252 hes 15 7 2 Starting Up Operation use e quee Rude ique bee udi 15 7 3 Inadmissible operating modes prr 16 7 4 Actions in the eve
9. The top jaw to be used depends on each particular application The top jaws influence the gripping force and in turn also the speed The specified basic speed according to DIN 6386 for the hand operated chuck type PSA is the speed at which the calculated centrifugal force of the heaviest corresponding jaw type is two thirds of the gripping force available in a static condition at maximum operating force Safety advice e Check that the gripping force of the chuck is sufficient for the machining operation under the selected operating conditions e The calculated gripping force values are only achieved with the chuck in a perfect condition the gripping force values can be higher with a freshly lubricated chuck e Use light top jaws at high speeds e Determine the dynamic gripping force loss with each setup and ensure that the grip ping force is adequate for the machining operation f the gripping force measured with a gripping force meter falls below the calculated value the hand operated chuck must be lubricated See also section 8 2 According to the regulations of the trade association work with rotating machines at high speeds must only be carried out with the provision of an adequately dimensio ned safety guard door The guard door must be closed and locked when the machi ne is in operation Determination of the necessary gripping force Fspz for a machining operation The gripping force necessary for every machining operati
10. ath herewith declares the following incomplete machines with the designations Type designation Independent chucks American version BILSING system Type PSA The general health and safety requirements according to Appendix I of the aforementioned directive have been referred to and observed The special technical documents according to Appendix VII B have been prepared The aforementioned special technical documents will be submitted to the responsible authority as required Commissioning is forbidden until it has been verified that the machine in which the aforementioned machines are to be incorporated comply with the specifications of the machinery directive Responsible for the documentation Oskar Weinert Heinrich Hertz Str 7 D 40699 Erkrath Date Manufacturer s signature 12 02 2013 Place Erkrath 5 5 _ Head of Design Mr Weinert Declaration of incorporation number As we are constantly engaged in improving our products the dimensions and data given in this catalogue cannot always correspond to latest design features and are subject to alteration without notice PSAE Edition 02 2013 F amp RKARDI FORKARDI OUR BRANDS FO RKARDT 1926 g Woodworth Teikoku Chuck founded in Japan 1991 2011 and becomes pioneer 1969 Ilinois Tool Works acquires ITW Workholding in chuck manufacturing N A Woodworth and Teikoku C
11. d which may result in a remaining risk The operator must assess the remaining risk The manufacturer is not liable for damage arising from not adhering to the manual Intended Use The clamping device may only be used to clamp work pieces on machine tools When doing so the maximum axial force clamping force and revolutions of the clamping device may not be exceeded The required clamping force must be determined for the application in line with the applicable technical rules e g VDI 3106 If in doubt or if accessories are used that were not provided by the manufacturer the manufacturer must approve or restate the thresholds The following must be considered Variable adhesion coefficients between work piece and top jaw Relationship between clamping diameter and working diameter Size of cutting force on the cutting tool Top jaws overhang from the clamping location PSAE Se GENERAL SAFETY ADVICE F amp aRKARDI 2 3 2 4 2 5 Reduction in clamping force via the centrifugal force for external clamping e The maximum revs stated only apply to hard standard top jaws e For special top jaws that are to be used for this chuck the maximum revs are engraved on the jaws Proper use includes adhering to the manufacturer s prescribed assembly set up ope ration and maintenance terms All other uses are considered to be unauthorised The manufacturer is not liable for damage thus caused Transport handli
12. d chuck PSA must be removed from the machine spindle disassembled cleaned and re greased 8 3 Disassembly and assembly of the hand operated chuck PSA Loosen the chuck mounting bolts Item 9 and remove the hand operated chuck PSA from the centring collar of the chuck flange Place the hand operated chuck PSA on a pallet or workbench Turn and loosen the screw Item 2 with the chuck key SW and remove the spindle bolts Items 3 and 4 Assembly takes place in reverse order Check all parts for damage wash and clean Replace faulty parts Relubricate with FORKARDT lubricating grease e g PF 5 or PF 6 PSAE SPARE PARTS AND Edition 02 2013 SERVICE F RKARDI 9 0 Spare parts and service 9 1 Spare parts In the interests of safety and to ensure perfect functioning of the chuck only use ori ginal FORKHARDT parts The article numbers are shown in the component list The manufacturer s warranty only covers original FORKARDT parts Any damage attri buted to the use of parts from other manufacturers will invalidate claims under our pro duct liability obligation The most important spare and wearing parts should be carried in stock at the place of use to ensure consistent perfect functioning and availability of the power chuck Spare parts can be ordered with the spare parts list or appropriate parts list e In the interest of safety only use ORIGINAL FORKARD spare parts e The use of non original parts will discharge
13. d in Germany PSA 03 15 0 0 FK
14. ed in section 7 2 page 15 7 8 Clamping Gripping force is built up when the chuck key SW 1 Item 7 is turned clockwise A torque wrench must be used for power chucking and fine alignment 7 8 1 Unclamping Unclamping takes place by turning the chuck key SW 1 Item 7 counter clockwise up to the rear fixed stop this relieves the clamping mechanism A RDT MAINTENANCE AND REPAIR Edition 02 2013 8 0 Maintenance repair 8 1 Notes For checks repairs or maintenance of the hand operated chuck refer to Section 2 Safety instructions Due to different operating conditions the frequency of maintenance wear control or repair cannot be determined in advance and depends on the degree of load and fou ling Operating hours period Check point Maintenance instructions After 24 hours for initial Lubrication of hand operated chuck commissioning or repair Check screwed connections for tightness Weekly Lubrication of base jaws and screw Check Fspmax with a gripping force meter Weakly e g SKM 1200 1500 Monthly Check base jaw and screws 8 2 Maintenance Before carrying out maintenance checks or other work on the machine always first stop the machine spindle and lock the lathe to prevent recon nection with a lockable local switch Provide a warning sign If the calculated gripping force Fspmax specified in section 3 4 page 9 is not achie ved in a static condition even after lubrication the hand operate
15. he hand operated chuck PSAE STARTING UP Edition 02 2013 OPERATION F ERKARDI 7 0 Starting up operation 7 1 Notes Initial commissioning has a considerable influence on the optimal operation of the hand operated chuck whereby a check must be made for any errors made during assembly of the hand operated chuck Mount the top jaws with slot and tenon or SWB system and establish a connection with the base jaws with the jaw mounting bolts The jaw mounting bolts must be tigh tened with the specified torque Do not overload the hand operated chuck PSA The torque for generating the gripping force must correspond to the maximum permissible torque of the hand operated chuck used and must not exceed this value Attention Do not use a tube extension when using the chuck key Sluggishness of the hand operated chuck can be caused by distorted base or top jaws Remove the base jaws together with the top jaws from the chuck body 7 2 Starting up operation Place the work piece in the hand operated chuck PSA and clamp Start the machine and wait for the machine program to release the machine spindle to start the same Machining of work pieces at high speeds must only take place with the pro vision of an adequately dimensioned safety guard door Close the safety guard door and mount protective devices The safety guard door must be locked when the machine spindle is rotating and should only be opened when the machine sp
16. huck N A Woodworth Workholding consolidates all locations enter into a licensing agreement allowing both 1995 under Forkardt brand 1916 companies to meet the complex needs SP Manufacturing and Logansport Cylinder of the manufacturing industry founded and becomes leading supplier of actuating cylinders 2014 FORKARDT duis st oat m BUCK Forkardt acquires Innovative Technology by F2RKARDT FORKARDT DEUTSCHLAND GMBH Heinrich Hertz Str 7 D 40699 Erkrath Phone 49 211 25 06 0 Fax 49 211 25 06 221 E Mail infoGQforkardt com FORKARDT USA 2155 Traversefield Drive Traverse City MI 49686 USA Phone 1 800 544 3823 1 231 995 8300 Fax 1 231 995 8361 E Mail sales forkardt us Website www forkardt us FORKARDT FRANCE S A R L 28 Avenue de Bobigny F 93135 Noisy le Sec C dex Phone 33 1 4183 1240 Fax 33 1 4840 4759 E Mail forkardt franceGforkardt com FORKARDT CHINA Precision Machinery Shanghai Co Ltd 1F 45 Building No 209 Taigu Road Waigaoqiao FTZ CHINA 200131 CHINA Phone 86 21 5868 3677 E Mail infoGforkardt cn com Website www forkardt us FORKARDT INDIA LLP Plot No 39 D No 5 5 35 Ayyanna Ind Park IE Prasanthnagar Kukatpally Hyderabad 500 072 India Tel 91 40 400 20571 Fax 91 40 400 20576 E Mail info forkardtindia ccom www forkardt us www forkardt com 2015 FORKARDT Errors and omissions excepted Edition 02 13 Printe
17. iately be removed from the screw square after clamping The key must never be left in the chuck for safety reasons e The machine spindle must only be started when clamping takes place within the permissi ble operating range of the hand operated chuck e f machining of a clamped work piece is interrupted for several hours the work piece must be removed from the hand operated chuck PSAE Edition 02 2013 F2RKARDT 5 0 5 1 5 2 5 3 Gripping force General The connection between the hand operated chuck PSA is non positive i e force is transmitted by the top jaw being pressed against the work piece The contact pressu re necessary for establishing this non positive connection is termed gripping force The gripping force is subject to different direct or indirect influences e variable coefficients of gripping force between the work piece and top jaw clamping diameter and working diameter ratio e magnitude of the cutting force on the cutting tool top jaw overhang from the clamping point reduction of gripping force due to the centrifugal force of the jaws with external gripping Rotating chucks are subject to the influence of centrifugal force which increases with the speed squared With external gripping the centrifugal forces work against the gripping force this is the reverse with internal gripping The force of the gripping jaws still available at high speed for gripping the work piece
18. indle has come to a standstill The local safety regulations apply to the operation of the hand operated chuck in any event Reference is made here to the applicable regulations for the prevention of accidents of the respective trade association Listen for abnormal noise Check material samples BA No PSAE STARTING UP F2RKARDT OPERATION 7 3 7 4 The accuracy of the hand operated chuck is reflected in the running accuracy of repe atedly clamped work pieces machined in several successive chucking operations If the centre of the clamping cross section deviates from the turning centre beyond the specified tolerance this will lead to faulty work pieces and waste Inadmissible operating modes Any system unbalance on the hand operated chuck must be eliminated immediately Actions in the event of faults Independent of the following instructions the local safety regulations apply to the operation of the hand operated chuck in any event It is recommended to provide a lockable local switch to prevent unintentional starting of the machine spindle when carrying out repairs or in the event of faults Signs cau ses and measures to be taken in the event of faults on the hand operated chuck are shown in the following table The completeness of this information cannot be guaranteed due to certain factors knowledge of operating personnel etc Cause Cause Measures Machine has vibration problems Unbala
19. keep the jaw in place should the steel spindle break The clamping jaws are made of case hardened steel hardened and ground and are reversi ble The two part gripping jaw is a quick change gripping jaw i e the jaw can be rotated through 180 after loosening the socket head screw for internal and external gripping It is important that the top and base jaws are pulled firmly together by the socket head screw Every faceplate is supplied with an operating key complying with the requirements of DIN so that the supplied standard key is sufficient for tightening the steel spindle Attention To be noted is that the maximum speed specified on the faceplate or machine must be maintained The speed is only permissible for work pieces that do not exceed a specific unbalance of 25 mmg kg Attention When clamping with the chuck key the use of a tube extension must be avoided as this will subject the chuck internal components to excessive load Attention The chuck key must immediately be removed from the screw square after clam ping The key must never be left in the chuck for safety reasons Safety advice e The torque for generating the gripping force must be adjusted to the maximum permissible torque of the hand operated chuck used and must not exceed this limit e When clamping with the chuck key the use of a tube extension must be avoided as this will subject the chuck internal components to excessive load e The chuck key must immed
20. llision switch off the lathe immediately and check the clamping device for damage In addition to easily recognised damage hidden damage may also occur e g hairline fractures in the chuck body or the base jaws Remove the clamping device immediately from the machine spindle Edition 02 2013 Analyse the affected parts of the clamping device with an appropriate non destructi ve testing procedure to ensure there are no fractures and exchange it if damage has occurred 35 Only use original parts 2 6 Safety technology conditions for clamping devices The safety technology conditions for operating clamping devices under pressure are defined in the trade association s testing guidelines and the DIN VDE and VDI guide lines The individual test conditions are ensured via the following activities Test condition Ensured via The machine spindle may only start when Pressure switch in the clamping lines the minimum clamping pressure in the clamping cylinder has been built up The clamping may only be released when Standstill monitoring on the the machine spindle has stopped machine spindle If the power fails and restarts the switching Impulse controlled way valve with detent positions do not change end positions If the clamping energy fails a signal to Pressure switch in the clamping line automatically or manually stop the spindle is given At 1 5 of the maximum activation power the clamping device used must open and close
21. nce of chuck flange and Check concentricity on the test surface possibly chuck due to incorrect the hand operated chuck and immedi assembly ately eliminate any system unbalance Rebalance chuck flange if necessary Readjust spindle bearing Gripping force too low Fouling Clean hand operated chuck Insufficient lubrication Check lubrication if inadequate disassemble hand operated chuck clean and lubricate Jaw stroke not reached Wedge block groove fouled Clean hand operated chuck No gripping force Clamping jaws distorted Check locating surfaces Possibly a different make STARTING UP Edition 02 2013 OPERATION F2RKARDT 7 5 Recommissioning following a fault See section 7 1 and section 7 2 page 15 7 66 Measures for extended periods of non use Remove the work piece from the hand operated chuck Clean and grease the hand operated chuck Do not clean the hand operated chuck with compressed air as there is a risk of eye injury from chip and coolant Risk of injury Coat bright parts with a preservative Observe the safety instructions of the preserva tive manufacturer 7 7 Measures following extended periods of non use Clean parts to remove preservative Lubricate the hand operated chuck remove any excess grease Perform an idle stroke to distribute the lubricating grease Check the gripping force Fspmax on the hand operated chuck with the machine spindle stationary Load a work piece Otherwise proceed as describ
22. ng and storage Notify the forwarder if there is transport damage Notify the manufacturer in writing without delay if parts are missing If the clamping device is not assembled immediate ly after delivery it must be stored in a protected location Cover the parts properly and protect from dust and moisture In order to protect all the blank parts the clamping device and pressure oil cylinder and all accessories are covered with a protective substance on delivery Operating information As per the regulations of the trade association revolving clamping devices must be secured from touching using appropriate covers or protective doors If faults occur on the clamping device during operation the machine must be switched off immediately and only restarted when the fault has been resolved After switching off the clamping power the work piece may release itself from the clamping device The local safety regulations and accident prevention rules of the appropriate trade association apply to operating the clamping device Maintenance and repair For maintenance and monitoring work ensure the clamping device is without pressure At the high revs that are common on lathes the clamping device is exposed to high loads It can be damaged during collisions between the tool and clamping device that may occur occasionally e g if the program process has faults damage may occur BA No PSAE GENERAL SAFETY ADVICE After a co
23. nt of faults ll warn ee 16 7 5 Recommissioning following a fault RR gr Rate Exe 17 7 6 Measures for extended periods of non use 17 7 7 Measures following extended periods of non use 17 7 8 Eb eee Deus be eee SUL B rara 17 721 Unclamping 352224222248 4 ey des e 5e bie de ecd dated 17 8 0 Maintenance and repair 18 8 1 Notes 25 eee he EPA 18 8 2 Maintenance 24 02 0260 24060 500 bbe be 18 8 3 Disassembly and assembly of hand operated chuck PSA 18 9 0 Spare parts and service 19 9 1 Spale PANS PPP 19 9 2 SENICE a Meat Bea eed AO Bhan ee aes oe 19 9 3 Spare part list for manual chuck type PSA 20 10 0 54 ee Pe 21 10 4 Tools and accessories 21 10 2 List of related 1 50 21 11 0 Declaration of incorporation
24. on must be determined If this gripping force cannot be provided by a chuck taking into account the safety fac tors defined in VDI 3106 the permissible speed or permissible cross section of cut must be determined Example To be machined is a solid steel work piece without bore with a clamping diameter of Dsp 60mm a turning diameter of dz 50mm and a cross section of cut having a main cutting force of Fs 1200daN at a speed of 2760 rpm Non hardened jaws rebored to the clamping diameter are used to prevent damage PSAE Edition 02 2013 F amp RKARDI This results in a gripping coefficient of usp 0 1 The safety factor Sz for the machining data is assumed as Sz 2 The gripping force loss Fsp is 2000 daN The example shows taking into account the gripping force loss Fsp with the spindle of the machine tool stationary that a minimum gripping force of Fspmin Fspz Fsp 2000 2000 4000 daN is necessary The gripping force Fs is influenced mainly by the main cutting j force Fs which is determined from the cross section of cut and specific cutting i i force L p 0 1000 2020 2000 4000 5090 Fs a s ks The following applies to the gripping force necessary for machining Fs dz a s ks dz Gripping coefficients usp Work piece surface at the Jaw type clamping point Terms used in the formulas Work piece projection a Ou
25. r additional information GENERAL SAFETY ADVICE 2 0 2 1 2 2 BA No PSAE Edition 02 2013 General safety advice General Clamping devices may produce risks if the use and handling do not meet the require ments for safety technology The clamping device is produced to the current state of the technology and is safe to operate Even so this clamping device may produce risks if it is used improperly by unqualified people The following information is to be used for personal safety and to prevent damage to the product described or the connected devices Read this manual before working with the clamping device and observe all safety information Not adhering to the instructions contained in this manual may result in danger to life severe personal injury or substantial damage to property Only qualified people may work with the clamping device It is not permitted to change or alter the clamping device yourself Only use the clamping device when it is in perfect condition Before working on the clamping device switch the machine off and ensure it can not be switched on again Only use original manufacturer components and spare parts The warranty lapses if parts from other manufacturers are used Before starting to use the clamping device check whether all protective devices have been attached The lathe clamping device work piece system is primarily influenced by the work piece being produce
26. tting depth S Feedrate Ks Specific cutting force dz Outting diameter dsp Clamping diameter usp Gripping coefficient Fs Main cutting force 1 Avoid smooth jaws are only suitable for machined work pieces 2 Indentations are produced in the work piece depending on the gripping force Cutting forces increase as cutting tools become blunt To cover all uncertainties from the machining operation an additional safety coefficient Sz 2 is recommended BA No PSAE ASSEMBLY 6 0 Assembly Edition 02 2013 6 1 Measures prior to starting assembly 6 1 1 Checking the spindle nose for receiving the chuck flange To ensure maximum concentricity of the hand operated chuck after assembly the locating surfaces on the spind le nose must be checked with a dial gauge Concentricity of centring max 0 005 mm Axial run out of locating surface max 0 005 mm Check plane surface for evenness with a hairline gauge The plane surface must be deburred on the holes and clean 6 1 2 Checking the mounted chuck flange The hand operated chuck PSA has a centric mounting arrangement For mounting the hand operated chuck directly on the spindle nose with short taper according to DIN ISO and ASA standards an appropriate chuck flange must be attached to the spindle nose of the lathe For self fabrication by the user the chuck flange on the machine spindle must be finish machined and balanced prior to assembly of t
27. us from our product liability obligations should any damage be attributed directly or indirectly to the use of such parts Only ORIGINAL spare parts supplied by us are covered by the warranty Please note that there are often special production and delivery specifications for ori ginal and non original parts and the parts we supply conform to current industry stan dards 9 2 Service The following data should be provided when ordering spare parts Designation Oo Quantity Ident Number FORKARDT DEUTSCHLAND GMBH Heinrich Hertz StraBe 7 D 40684 Erkrath Phone 49 211 2506 334 Mr Neuenfeldt 49 211 2506 284 Mr Cordes Fax 49 211 2506 236 F2RKARDT 9 3 Spare parts for hand operated chuck type PSA SPARE PARTS AND SERVICE Edition 02 2013 1 Type Hardened Hardened Hardened open Hardened closed Hardened top jaw Base jaw Adjusting spindle Spindle bolt Spindle bolt Key Pcs 4 4 4 4 8 1 Size Ident No Ident No Ident No Ident No Ident No SW Ident No 250 DP169990016 DP169990015 DP169990002 DP169474004 DP169474003 12 DP225500000 300 DP169474016 DP169474015 DP169474002 DP169474004 DP169474003 12 225500000 355 DP170010016 DP170010015 DP170010002 DP170010004 DP170010003 14 0 225500000 400 DP169247016 DP169240015 DP169247002 DP169247004 DP169247003 15 DP240500000 450 DP169247016 DP1
Download Pdf Manuals
Related Search