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公开(公告)号：EP1597037A2
公开(公告)日：2005-11-23
申请号：EP03800286.1
申请日：2003-12-30
发明人： SCHNEIDER, Albrecht
IPC分类号： B26F1/14
CPC分类号： B26D7/2614 , B21D28/34 , B26F1/02 , B26F1/14 , B30B15/026 , Y10T83/9423 , Y10T83/9457 , Y10T83/9476
摘要： A punching tool has a guided, axially displaceable die plunger 12, which is fixed against relative rotation, in a guide bushing 10. In a bore in its front end a punching die 22 is seated. During the punching stroke the punching die rests against a front face of the die plunger and is axially fixed in place by means of one or several snap-in balls 32, each of which is seated in a transverse bore 30, which snap-in balls are maintained in engagement with an annular groove 34 by means of a spring washer 36 in the die plunger. The outer diameter of the spring washer is only slightly less in the engagement position than the inner diameter of the guide bushing and can be elastically widened for releasing the punching die outside of the guide bushing.
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公开(公告)号：EP1089837A1
公开(公告)日：2001-04-11
申请号：EP99932712.5
申请日：1999-06-23
发明人： SCHNEIDER, Albrecht
CPC分类号： B21D28/12 , B21D45/003
摘要： A tool holder for a punching machine, comprising several punching units (14) that are accommodated in tool holding fixtures (12) in the holder (10) in addition to gas pressure springs (15) to recall the punches (20). The advantage of gas pressure springs is that the pressure level can be adapted to the material that is to be machined. In order to make it easier and quicker to achieve said adaptation, the pressure chambers (28, 32) of the gas pressure springs are joined to a common supply line (44) which can be connected to a pressure gas source. As a result, it is possible to change the internal pressure of all the gas pressure springs (15) at the same time.
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公开(公告)号：EP1089837B1
公开(公告)日：2002-05-22
申请号：EP99932712.5
申请日：1999-06-23
发明人： SCHNEIDER, Albrecht
CPC分类号： B21D28/12 , B21D45/003
摘要： A tool holder for a punching machine, comprising several punching units (14) that are accommodated in tool holding fixtures (12) in the holder (10) in addition to gas pressure springs (15) to recall the punches (20). The advantage of gas pressure springs is that the pressure level can be adapted to the material that is to be machined. In order to make it easier and quicker to achieve said adaptation, the pressure chambers (28, 32) of the gas pressure springs are joined to a common supply line (44) which can be connected to a pressure gas source. As a result, it is possible to change the internal pressure of all the gas pressure springs (15) at the same time.
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公开(公告)号：EP1971464B1
公开(公告)日：2017-07-19
申请号：EP07716504.1
申请日：2007-01-11
发明人： SCHNEIDER, Albrecht
CPC分类号： B21D22/02
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公开(公告)号：EP1597037B1
公开(公告)日：2012-04-18
申请号：EP03800286.1
申请日：2003-12-30
发明人： SCHNEIDER, Albrecht
CPC分类号： B26D7/2614 , B21D28/34 , B26F1/02 , B26F1/14 , B30B15/026 , Y10T83/9423 , Y10T83/9457 , Y10T83/9476
摘要： A punching tool has a guided, axially displaceable die plunger 12, which is fixed against relative rotation, in a guide bushing 10. In a bore in its front end a punching die 22 is seated. During the punching stroke the punching die rests against a front face of the die plunger and is axially fixed in place by means of one or several snap-in balls 32, each of which is seated in a transverse bore 30, which snap-in balls are maintained in engagement with an annular groove 34 by means of a spring washer 36 in the die plunger. The outer diameter of the spring washer is only slightly less in the engagement position than the inner diameter of the guide bushing and can be elastically widened for releasing the punching die outside of the guide bushing.
摘要翻译： 冲压工具具有导向的，可轴向移动的模具柱塞12，该模具柱塞在相对旋转中被固定在引导衬套10中。在其前端的孔中安置冲压模具22。 在冲压冲程期间，冲模停靠在冲模柱塞的前表面上并且借助于一个或多个卡扣球32轴向地固定在适当位置，每个卡扣球32都位于横向孔30中，该卡扣球 通过模具柱塞中的弹簧垫圈36保持与环形槽34接合。 弹簧垫圈的外径在接合位置中仅略小于引导衬套的内径，并且可弹性加宽以将冲模在引导套筒外部释放。
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