公开(公告)号：US3757557A

公开(公告)日：1973-09-11

申请号：US3757557D

申请日：1972-04-06

申请人： KOST E

发明人： KOST E

IPC分类号： B21D3/12 ,  B21D25/00 ,  B21D11/04

CPC分类号： B21D25/00 ,  B21D3/12

摘要： Hydraulic stretch levelling machines have a stretch gripper head which is powered by a hydraulic piston and cylinder drive unit in order to stretch level a workpiece; the other end of the workpiece is secured by a counter gripper head which includes an anchoring mechanism for anchoring it in position and which is adjustable at discrete intervals for allowing for different sizes of workpiece. I propose separating the anchoring mechanism from the counter gripper head and connecting the counter gripper head to the anchoring mechanism by steplessly variable connecting means so that the position of the counter gripper head can be steplessly variable in order to allow for different lengths of workpiece and in order to bring the workpiece properly between the jaws of the gripper head, without using the hydraulic piston and cylinder drive unit for this purpose.

摘要翻译： 液压拉伸流平机具有拉伸夹头，由液压活塞和气缸驱动单元驱动，以拉伸工件的水平; 工件的另一端由对夹夹头固定，该夹头包括用于将其固定在适当位置的锚定机构，并且可以以离散的间隔调节以允许不同尺寸的工件。 我建议将锚固机构与计数器夹头分开，并通过无级可变的连接装置将反夹具头部连接到锚定机构，使得反夹具头的位置可以无级变化，以允许不同长度的工件和 为了将工件正确地夹在夹头的夹爪之间，不用液压活塞和气缸驱动单元就可以达到这个目的。