公开(公告)号：US3872896A

公开(公告)日：1975-03-25

申请号：US44627674

申请日：1974-02-27

Applicant: NHK SPRING CO LTD

Inventor： YOSHIMURA SHIGERU

IPC: B21F35/00 ,  B21F35/04

CPC classification number: B21F35/00 ,  Y10T74/18808

Abstract: The twisting apparatus comprises a transfer mechanism for transferring a formed wire spring to a working station and a pair of twisting units disposed on the opposite sides of the working station. Each unit comprises a mechanism for clamping the formed wire spring and a mechanism for twisting the formed wire spring while it is clamped between the clamping mechanisms. These mechanisms are actuated by pneumatic actuators. Means are provided for respective units for varying the twisting angle. The twisting units are also adjustable to vary the twisted portions of the formed wire spring.

Abstract translation: 扭转装置包括用于将成形的线弹簧传送到加工台的转移机构和设置在加工台的相对侧上的一对扭转单元。 每个单元包括用于夹紧形成的线弹簧的机构和用于在形成的线弹簧被夹紧在夹紧机构之间时扭转形成的线弹簧的机构。 这些机构由气动执行机构致动。 为各个单元设置用于改变扭转角度的装置。 扭转单元也可调节以改变所形成的线弹簧的扭曲部分。