Dynamic adjustment mechanism of bottom dead center of high-speed knuckle-joint press

Abstract

The invention relates to a press, in particular to a dynamic adjustment mechanism of the bottom dead center of a high-speed knuckle-joint press, belonging to the technical field of pressure machinery. The adjustment mechanism is symmetrical and fixed on the two ends of the upper cross beam of the press; a crank arranged in the frame drives a slider to perform up-down reciprocating motions in a chute through a connecting rod; the slider, an oscillating bar and a supporting bar constitute a diamond mechanism, the supporting bar is hinged at the point H; the connecting rod, an elbow-bar, a ball-end connecting rod and the slider constitute an elbow-bar mechanism, the slider performs up-down reciprocating motions to drive the supporting bar to oscillate; and the connecting rod is hinged with the oscillating bar to push the elbow-bar mechanism and realize the up-down reciprocating motions of the slider. When the position of the point H changes, the bottom dead center of the slider can also change. In the mechanism of the invention, the fixed pivot H is designed to a point which can be adjusted up and down, thus the dynamic adjustment of the bottom dead center can be realized.

Description

technical field [0001] The invention relates to a press, in particular to a dynamic adjustment mechanism for the bottom dead point of a high-speed toggle press, which belongs to the technical field of press machinery. Background technique [0002] In the forging machinery industry, high-speed presses require high bottom dead center accuracy. The bottom dead point of traditional high-speed presses mostly uses a crank slider mechanism, and the bottom dead point of the slider cannot be dynamically adjusted, which directly affects the quality of stamping parts. Quality and mold life. Contents of the invention [0003] The purpose of the present invention is to overcome the shortcomings of the above-mentioned prior art and provide a dynamic adjustment mechanism for the bottom dead point of a high-speed toggle press. The crank in the frame drives the slider to reciprocate up and down in the slideway through the connecting rod. The slider, the swing rod and the support rod form ...

AI Technical Summary

Problems solved by technology

[0002] In the forging machinery industry, high-speed presses require high bottom dead center accuracy. The bottom dead point of traditional high-speed presses mostly uses a crank slider mechanism, and the bottom dead point of the slider cannot be dynamically adjusted, which directly affects the quality of stamping parts. Quality and mold life

Images