Controllable damping drawing die based on magneto-rheological elastic piece buffering device

Abstract

The invention provides a controllable damping drawing die based on a magneto-rheological elastic piece buffering device. The controllable damping drawing die comprises a control system, a sensing system, a die body, a hydraulic transmission system and the magneto-rheological elastic piece buffering device, wherein the mold body comprises a male die module and a female die module; the sensing system is arranged on the male die module, and is used for measuring distance information between the male die module and the female die module and stressing information of a male die module; the hydraulictransmission system is used for driving the male die module to move towards or away from the female die module; the magneto-rheological elastic piece buffering device is connected with the female diemodule, and is used for outputting damping force to the female die module; and the control system is used for controlling the hydraulic transmission system and the magneto-rheological elastic piece buffering device according to the distance information and the stressing information. According to the controllable damping drawing die disclosed by the invention, when the male die rushes at the female die which is connected with the magneto-rheological elastic piece buffering device, during drawing, the tensile stress on a workpiece can be effectively controlled, and the effects of buffering anddamping are achieved, so that the qualified rate of the products is substantially increased, and the working efficiency is substantially improved.

Description

technical field [0001] The invention relates to the field of die processing, in particular to a controllable damping drawing die based on a magneto-rheological elastomer buffer device for producing stamping parts. Background technique [0002] Drawing die is an important mechanical equipment in the field of stamping processing. The drawing stress of the existing drawing dies cannot be effectively controlled during the drawing process, which often leads to uneven deformation of the drawn workpiece and even damage to the workpiece, resulting in a high rate of defective products. During the entire deep drawing process, the precise control of the drawing stress and the vibration control of the mold during the deep drawing process will affect the quality of the deep drawing of the workpiece. In the current existing technology, the drawing die mainly has the following deficiencies in terms of buffering and vibration reduction: in the buffer mechanism that uses springs as the main...

AI Technical Summary

Problems solved by technology

In the current existing technology, the drawing die mainly has the following deficiencies in terms of buffering and vibration reduction: in the buffer mechanism that uses springs as the main buffer, there is no feedback system, the damping is uncontrollable, and the drawing cannot be actively and accurately controlled The forming effect of the workpiece; the supporting part of the force surface is controlled by the hydraulic system, and in the buffer mechanism that cooperates with the relevant sensors to form a feedback system, the requirements for the sealing and machining accuracy of the buffer mechanism are very high The sensitivity is not high, the stability is not good, and the tensile stress and vibration generated during deep drawing cannot be controlled in time

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