发明名称 |
Machines for forming coiled springs |
摘要 |
A wire coil spring forming machine adapted for use with thick wire prevents breakage of a thin wall in a longitudinal groove in a wire guide member or quill when forming a sharp angle bent between a coil body portion and a leading end loop portion, and permits the start of the next spring leading end loop during formation of last spring trailing end loop. A pair of radially movable members move to advanced positions where they grasp the wire portion of an already formed leading end loop just in front of the longitudinal groove. Another radially movable member abuts the loop to bend it at that point without applying the bending force to the longitudinal groove. A body holder means grasps the body after the main tool forms the trailing end loop to permit severing the semifinished spring from the material wire and bending the trailing end loop.
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申请公布号 |
US4296621(A) |
申请公布日期 |
1981.10.27 |
申请号 |
US19790100246 |
申请日期 |
1979.12.04 |
申请人 |
ASAHI-SEIKI MANUFACTURING CO., LTD. |
发明人 |
OHDAI, YOZO;TAKAHATA, YASUYUKI |
分类号 |
B21F3/027;B21F35/02;(IPC1-7):B21F35/02;B21F11/00;B21F3/02 |
主分类号 |
B21F3/027 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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