Eight-connecting-rod press transmission mechanism

Abstract

The invention provides an eight-connecting-rod press transmission mechanism which comprises a double-eccentric body, a triangular connecting rod, a connecting rod A, a V-shaped angle rod, a connecting rod B, a connecting rod C, and a guide column. An eccentric shaft A and an eccentric shaft B are arranged on the two axial sides of the double-eccentric body respectively. The triangular connecting rod is provided with three hinge points which are distributed in a triangular shape, namely a hinge point A, a hinge point B and a hinge point C; the hinge point A is hinged to the eccentric shaft A; one end of the connecting rod A is hinged with the eccentric shaft B; one end of the V-shaped angle rod is hinged with the other end of the connecting rod A; one end of the connecting rod B is hinged with the hinge point B, and the other end is hinged with the other end of the V-shaped angle rod; one end of the connecting rod C is hinged with the hinge point C; and the input end of the guide column is hinged with the other end of the connecting rod C. When the eight-connecting-rod press transmission mechanism is close to a bottom dead center, the sliding block speed is low, the quick-return characteristic is good during return stroke, the formability of parts is facilitated, more sufficient feeding and discharging time can be provided for a robot, and a motion curve can meet the beat requirement of a high-speed press line continuous production mode.

Description

technical field [0001] The invention relates to the field of sheet metal stamping, in particular to a transmission mechanism of a mechanical press, in particular to a transmission mechanism of an eight-linkage press. Background technique [0002] In order to reduce production costs, automotive suppliers have higher and higher requirements for the automated production efficiency of the panel stamping line, and the stamping line in continuous production mode represents the most cutting-edge technology in the stamping field. Due to the structure of the bar system in the past, the eight-bar linkage press cannot provide sufficient loading and unloading time for the automatic robot when the slider is running, which makes it unable to meet the tact requirements of the continuous production mode of the high-speed stamping line. [0003] In addition, the eight-link transmission structure is very complicated. Once the machining accuracy of the rod system parts is out of tolerance, the...

AI Technical Summary

Problems solved by technology

This kind of debugging process is very cumbersome and difficult, and sometimes requires multiple disassembly and assembly, which not only prolongs the production and manufacturing cycle, but also leads to an increase in production costs, and finally causes the delay of the entire project, which brings big problems to the production plan.

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