F78 Description: The preloaded combination spring- and spacer unit combines the functions of providing the spring force and of spacing the stripper in one constructional element, whilst conventional designs employed two. The resulting advantages therefore consist of space savings and reduced machining cost with regard to the various die members. The execution with spacer sleeve makes it possible to exchange the whole unit by simply removing the top clamping plate. Removal of the compensation disc gives unimpeded access to the punches – for the purpose of sharpening/grinding. Note: Helical compression springs must be ordered separately, see at the beginning of chapter F. After fitting, the resilient collar pins are ground to the same length. Attention: Regrinding of stamp in mm = regrinding of spacer. This means that the spring force and displacement always remain exactly the same. Match the blind hole drill depth h3 and/or spacer height so that the screw is released by about 0.1 mm. SPRING- AND SPACER UNIT FOR COMPRESSION SPRING, WITHOUT SPACER SLEEVE / SPRING- AND SPACER UNIT FOR COMPRESSION SPRING, WITH SPACER SLEEVE Ordering Code (example): Spring- and spacer unit for compression spring, without spacer sleeve Spring- and spacer unit for compression spring, with spacer sleeve Spring ø = 32 mm = 244.32. Spring ø = 20 mm = 244.20. Spacer tube length h = 48 mm = 048. Spacer tube length h = 38 mm = 038. without spacer sleeve = 10 with spacer sleeve 244.11. = 11 Order No = 244.32.048. 10 Order No = 244.20.038. 11 244.xx.xxx.10 Spring- and spacer unit for compression spring, without spacer sleeve 244.xx.xxx.11 Spring- and spacer unit for compression spring, with spacer sleeve Spring ø d1 3 s h* Socket cap screw d3 d4 d5 Dh s1 d2 20 10 3 1,8 M6 18 20 25 26 3 4 25 12 3 1,8 M8 18 20 25 26 3 4 32 16 3 2,5 M10 30 32 38 40 4 5 40 20 3 3,5 M12 30 32 38 40 4 5 * h = Spacer tube length 244.9. Mounting example: 3 h 0,1+0,1 h D 5 20 h 2 s 1 s s 5 d 3 d 1 d 4 d 2 d 20 25 244.□□.□□□.10 244.□□.□□□.11 Application without Spacer Sleeve (c’bored hole) Application with Spacer Sleeve (straight hole) The compensation sleeve are ground together to the same degree as a function of punch length and punch guide plate thickness. depth of hole provide circlip if required compensation sleeve 244.13. The headed spacer plug are ground together to the same degree at initial assembly when installed. socket cap screw headed spacer plug 244.12. DIN EN ISO 4762 (12.9) socket cap screw 241.14./.15./.16./.17. hi-performence comp. spring (per separately oder) spacer tube 244.9. spacer sleeve 244.11. stop washer 244.10. spring abutment washer 244.7. DIN EN ISO 4762 (12.9)
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