Controlled magnetorheological damper used for blanking drawing die and mounting method thereof

Abstract

The invention relates to a controlled magnetorheological damper used for a blanking drawing die. The damper comprises the die and a magnetorheological damper body; the die is provided with an upper die holder and a lower die holder which are movably connected through the magnetorheological damper body, the lower die holder is provided with a female die, a male die is arranged in the female die, and a male and female die is arranged on the lower end of the upper die holder, the upper die holder drives the male and female die to carry out punching on the female die and the male die in the lowerdie holder in the direction of a piston rod of the magnetorheological damper body through the magnetorheological damper body. The damper can adapt to the optimal control need of random vibration, parameters of control frequency, damping and the like can be adjustable, and the optimal vibration reduction active type damping controllable blanking drawing die can be achieved.

Description

technical field [0001] The invention relates to a controllable magneto-rheological damper applied to a high-speed punching die, in particular to a controllable magneto-rheological damper used in a blanking drawing die and an installation method thereof. Background technique [0002] At present, in order to shorten the processing time of a unit of products, improve the production efficiency and market competitiveness of enterprises, stamping production enterprises have put forward higher requirements for the stamping times of high-speed punching machines. However, the increase in the number of strokes of the high-speed punch will affect the accuracy of the punch, causing the vibration of the slider (connecting the mold) of the punch, which cannot guarantee the correct relative movement of the mold. Bad effects, such as losing the gap during processing due to the inclination of the center of the punch and the die, causing burns or adhesions, increasing the burr of the part, an...

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Problems solved by technology

[0003] The purpose of the present invention is to provide a controllable magneto-rheological damper for blanking drawing die and its installation method, through the real-time monitoring of the punching pressure, the size of the workpiece, and the vibration frequency range of the convex and concave molds, and by changing the current of the coil The size of the punch and die can be accurately controlled by the vibration and the size of the stamping force, which solves the technical problem that the dimensional accuracy of the stamped part cannot be controlled in real time, and effectively monitors the vibration of the slider (connecting the mold). It is easy to operate and has a fast response time. Guaranteed the precision of high-speed punch

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