Duplex toggle link mechanical press

Abstract

The invention relates to a duplex toggle link mechanical press. The press comprises a frame, two eccentric gears with the same teeth and mode number, two sets of left and right toggle link mechanisms consisting of two identical connecting rod branched chains, and a punch hammer, wherein the frame is connected with the punch hammer through the two sets of identical left and right toggle link mechanisms; the left and right toggle link mechanisms are symmetrically distributed on two sides of the frame; the eccentric gears in the left and right toggle link mechanisms are engaged with each other; the eccentric gear of each set of toggle link mechanism is connected with the frame through a revolute pair; the eccentric gears are connected with connecting rods through the revolute pair; the connecting rod, an upper toggle link and a lower toggle link are connected to the same part through the revolute pair; the upper toggle link is connected with the frame through the revolute pair; the lower toggle link is connected with the punch hammer through the revolute pair; and the punch hammer is positioned in a fixed guide rail and is connected with the frame through a sliding pair. The two sets of identical toggle link mechanisms are simultaneously driven by a high-power fixed rotating speed motor, so that the punch hammer has the operating characteristics of high efficiency, large tonnage and flexibility.

Description

technical field [0001] The invention relates to non-cutting metal forming processing equipment, in particular to a double toggle mechanical press. Background technique [0002] Mechanical press is an important metal forming processing equipment. It has the characteristics of high working efficiency, good working environment and convenient maintenance. It is widely used in industrial production. The working mechanism of the traditional mechanical press is a crank-slider mechanism. The hammer speed of this kind of press is too high during the deformation stage of the workpiece, which cannot meet the requirements of high-quality stamping operations. At present, in order to reduce the working speed of the hammer and improve the working performance of the mechanical press, servo presses and hybrid drive presses have appeared. The servo press can improve the processing quality of the workpiece and expand the processing range of the press, but because the servo motor is very expen...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to solve the above-mentioned shortcomings of the existing metal forming presses, such as high cost, difficult adjustment of the working speed of the slider, and poor working performance. The present invention provides a double toggle mechanical press, which consists of a large Power fixed speed motor drives two sets of the same toggle mechanism at the same time, which can make the hammer have high efficiency, large tonnage and flexible working characteristics

Images