Multi-scale precision micro-drawing die for real-time detection of ultra-thin sheet forming

Abstract

The invention belongs to the technical field of micro plastic forming and dies and relates to a multi-scale precision micro deep drawing die allowing real-time forming detection of ultrathin plates. The die comprises combination type male dies, female dies and blank holders, and macro parts as well as micro / mesoscopic parts can be formed by changing different male dies, female dies and the blank holders. The die is provided with a real-time detection mechanism, and macroscopic deformation and surface appearances of the ultrathin metal plates can be observed and microscopic grain size and changes can be observed as well by changing telecentric lenses of different focal lengths. When the male dies are replaced, micro circumferential movement of the male dies in a male die fixing plate can be realized through clearance fit of the male dies and the male die fixing plate, alignment of the male dies to holes of the blank holders can be benefited, and bending of the male dies is avoided. By the aid of a partitioned blank holder device, micro separation and closure of the blank holders can be realized through a screw mechanism, and high precision in alignment of the male dies and the female dies can be guaranteed, thereby more precise stamping force can be measured.

Description

technical field [0001] The invention provides a multi-scale precision micro-drawing die capable of real-time detection of ultra-thin plate forming, and belongs to the technical field of micro-plastic forming and dies. Background technique [0002] Thin plate micro-forming technology has attracted the attention of scholars at home and abroad and has developed rapidly due to its advantages of large batches, high efficiency, high precision, low cost, and no pollution, especially micro-deep-drawing technology; micro-deep-drawing technology is the most complicated , the most widely used. [0003] In the micro-forming mold, due to the small diameter of the punch and die in the micro-forming, and the small forming space in the forming process, the matching accuracy is higher; most of the micro-forming molds are designed according to the traditional mold design method, This cannot guarantee the matching accuracy of the micro-forming die and the forming accuracy of the sheet metal, ...

AI Technical Summary

Problems solved by technology

[0003] In the micro-forming mold, due to the small diameter of the punch and die in the micro-forming, and the small forming space in the forming process, the matching accuracy is higher; most of the micro-forming molds are designed according to the traditional mold design method, This cannot guarantee the matching accuracy of the micro-forming die and the forming accuracy of the sheet metal, and it is impossible to observe the status of the sheet metal forming in real time; the parts formed by the single-scale micro-forming die cannot effectively match the forming characteristics of the macroscopic parts. For comparison, it cannot reflect the forming characteristics of micro-forming

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