公开(公告)号：US3841125A

公开(公告)日：1974-10-15

申请号：US33337873

申请日：1973-02-16

Applicant: SACK GMBH MASCHF

Inventor： GUSE R

IPC: B21J7/16 ,  B21J7/28 ,  B21J7/46 ,  B21J9/12 ,  B21J9/20 ,  B30B15/16 ,  B30B15/18 ,  B21B37/08

CPC classification number: B21J7/28 ,  B21J7/46

Abstract: A control device for forging machines having a plurality of hydraulically actuated forging tools for reducing the cross section of a workpiece. In order to increase the forging accuracy the actual characteristic of each forging tool at the end of the forging stroke is compared with a predetermined characteristic and, when the characteristics differ, a servo-control mechanism supplies pressure fluid to or withdraws it from the line interconnecting a pump cylinder of the drive mechanism with the respective forging tool.

Abstract translation: 一种用于锻造机器的控制装置，具有用于减小工件横截面的多个液压致动锻造工具。 为了提高锻造精度，将锻造行程结束时的各锻造工具的实际特性与预定特性进行比较，并且当特性不同时，伺服控制机构将压力流体从线路互连 具有相应锻造工具的驱动机构的泵缸。