Patent ID: 8943869
Filing Date: 2015-02-03
Classification: B21D

Abstract:
1. A multi-clamp type stretch forming machine, comprising: clamping mechanisms, each clamping mechanism comprising a clamping frame provided with a rear connecting hole and a lower connecting hole, a clamper, and a hydraulic clamping cylinder; stretching mechanisms; and a machine frame; wherein a row of multiple clamping mechanisms are aligned on each of opposite sides of the machine frame; and wherein the lower connecting hole is coupled with a vertically disposed stretching mechanism by a universal push-pull mechanism, and the rear connecting hole is coupled with a horizontally disposed stretching mechanism by another universal push-pull mechanism or coupled simultaneously with a set of stretching mechanisms by another universal push-pull mechanism, the set of stretching mechanisms comprising any combination of a horizontally disposed stretching mechanism, an obliquely disposed stretching mechanism, and a vertically disposed stretching mechanism.