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2. Product description 

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Ortlieb Präzisionssysteme GmbH & Co. KG • Jurastr.11 • 73119 Zell unter Aichelberg • Germany 

Tel.: +49 (0) 7164 79701-0 • Fax.: +49 (0) 7164 79701-51 •  e-mail: [email protected] • www.ortlieb.net 

2  Product description 

The  Ortlieb  tool-grippers  for  tool  shanks  with  7/24-taper  are  an  approved  serial  product  for 

automatic  tool  changing.  They  are  clamping  tools  with  ISO  taper  (7/24)  and  pull  studs  acc.  

DIN 69871/72. The six-piece clamping segment has an optimal load balancing. Therfore a higher 

permitted clamping force is possible. And this at faster cyles. 

 

Pos. 

Item 

clamping segment 

draw-bolt 

ring spring 

rubber shim 

pull stud 

tool 

spindle 

 

Function: 

Milling  spindles  on machine  tools  are  usually fitted  with  conventional  spring  loaded tool  clamping 

systems. The tool-gripper operates on pulling force. 

 

The six-piece clamping segment is pulled by the draw-bolt into the machine spindle. The clamping 

segment  catches  the  pull  stud  of  the  tool  and  pulls  it  into  the  spindle  whereas  the  clamping 

segments are backed radial by the spindle-bore. 

 

To change the tool, the disk springs were compressed, usually by a hydraulic cylinder. The draw-

bolt is pushed by the drawbar to the front, releases the clamping segments and pushes the tool by 

force  out  of  the  spindle  taper.  The  ring  spring  provides  the  opening  of  the  clamping  segments 

which release the tool for changing. 

 

Summary of Contents for SK 30

Page 1: ...Version 05 12 2018 Technical Documentation SK Tool Gripper Tool Grippers for tool shanks with 7 24 taper DIN 69871 72 ISO 7388 1 2 ANSI B5 50 MAS BT ...

Page 2: ...eb net Content 1 General 3 1 1 Introduction 3 1 2 Guarantee 4 1 3 Intended Use 5 1 4 Initial start up 5 1 5 Checklist for Installation 6 2 Product description 8 2 1 Tool Grip SK 9 2 2 Multi Grip SK 9 2 3 Technical Data 9 3 Spare parts 10 4 Mounting instructions 11 5 General Safety Instructions 12 5 1 Troubleshooting 14 6 Assembly declaration 15 7 Shipping data 16 ...

Page 3: ...ides all information on operating and maintaining your Ortlieb product Ortlieb Präzisionssysteme GmbH Co KG assumes no liability for damages and interruptions caused by disregarding several articles of this documentation Ortlieb Präzisionssysteme GmbH Co KG reserves the right to make any technical changes and improvements to this product No liability on literal mistakes For Start up operation and ...

Page 4: ...ility in the manner that parts with material or production defects proven within 12 month after purchasing were repaired free of charge replaced by new ones or taken back to the charged price In the event of improper assembly and operation use of non original spare parts unauthorized modifications to our product we shall assume no liability for personal injury or damage to machinery and our produc...

Page 5: ...evices In this case we shall assume no liability Do not apply force during assembly disassembly and operation this could damage the clamping device or the machine 1 4 Initial start up A function check is implicitly before initial operation of the tool gripper To ensure a safe and precise operation of the tool gripper during machining a sufficient clamping force must be provided Check the clamping ...

Page 6: ...lane surface then clamp it Clamping must not de done too soon as otherwise the clamping segments are not disengaged can properly and can be damaged 6 Tool change Grip the tool eject unclamp blow out Make sure that the tool and spindle are clean If chips are drawn in clamping segments will sustain damage One sided overloading of the clamping segments 7 If one clamping segment breaks the tool will n...

Page 7: ... tool shank by the tool gripper may not be below the incident machining forces and torques It is also important that the functional surfaces and the clamping system are greased regularly Metaflux lubricant metal paste Based on experience re greasing should be done after every 200 000 load alternations at the least in order to keep the clamping force as uniform as possible Regular measurement of th...

Page 8: ...draw bolt 3 ring spring 4 rubber shim 5 pull stud 6 tool 7 spindle Function Milling spindles on machine tools are usually fitted with conventional spring loaded tool clamping systems The tool gripper operates on pulling force The six piece clamping segment is pulled by the draw bolt into the machine spindle The clamping segment catches the pull stud of the tool and pulls it into the spindle wherea...

Page 9: ...ds are supported DIN 69871 72 ISO 7388 1 2 A B ANSI B5 50 MAS BT JIS B6339 1992 On request Reinforced design for higher clamping forces Design with air blast coolant minimal quantity lubrication delivery and additional sealings 2 3 Technical Data Size Item Installation measure EM Release stroke Reserve Fsp max SK 30 BSK 2557 03 71 3 5 2 9 kN BSK 2557 02 71 3 6 5 2 5 kN BSK 2557 11 71 3 4 2 9 kN BS...

Page 10: ... 02 BSK 2557 202 BSK 2557 11 BSK 2557 101 BSK 2557 211 OBN 7169 12 BSK 2358 4 BSK 2557 16 BSK 2557 216 SK 40 BSK 2602 03 BSK 2415 1 BSK 2602 203 OBN 7169 11 BSK 2415 4 BSK 2605 BSK 2605 2 BSK 2537 06 BSK 2537 1 BSK 2537 206 BSK 2537 BSK 2537 2 SK 45 BSK 2425 01 BSK 2425 1 BSK 2425 201 OBN 7169 14 BSK 2415 4 BSK 2425 02 BSK 2425 202 BSK 2543 04 BSK 2543 1 BSK 2543 204 BSK 2543 03 BSK 2543 203 SK 50...

Page 11: ...eserve should be at least 2mm possible stroke from clamping position Function Clamping occurs on pulling usually by disc spring or a clamping cylinder The draw bar pulls the draw bolt with the clamping segments into the machine spindle During pulling the segments were closed by the inner contour of the spindle grip the pull stud of the tool and tow it into the spindle till it fits form locking To ...

Page 12: ...tool gripper are only allowed if the spindle stands still 2 Operation cylinders machine spindles To operate the tool grippers please use only appropriate cylinders according the safety and accident preventions regulations Mounting the tool gripper to a spindle with an existing operating cylinder make sure that the release power is sufficient to release the tool from the spindle and the maximum cla...

Page 13: ...r Please keep the following advices Check set up measurement and the tightening of the draw bolt regularly Check clamping force Clean the tool gripper regularly according the operation conditions from swarf and cooling lubricant Dirt reduces the runout accuracy and reduces the clamping force Do not use polar or ester containing solvents to clean the spindle and the tool gripper Sealings and the ru...

Page 14: ...the tool gripper and check pulling force on the drawbar Low pulling power of the cylinder disk springs To high clamping force Set up measurement of the draw bolt does not match Check set up measurement according the installation drawing Re tighten the draw bolt if necessary high pulling power of the cylinder disk springs Disassemble the tool gripper and check pulling force on the drawbar Bad run o...

Page 15: ...protection requirements according attachment 1 of the machine directive were used are valid and adhered Nr 1 1 3 Nr 1 3 2 Nr 1 5 4 Nr 1 6 1 The following standards or extracts of these standards are used DIN 69871 72 ISO 7388 1 2 The start up of this product is forbidden until it is proven that the machine in which the above named incomplete machine is mounted to conforms the regulations according...

Page 16: ... Ortlieb Präzisionssysteme GmbH Co KG Jurastr 11 73119 Zell unter Aichelberg Germany Tel 49 0 7164 79701 0 Fax 49 0 7164 79701 51 e mail info ortlieb net www ortlieb net 7 Shipping data Article No Serial No Delivery date ...

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