Stress monitoring and early warning method and system for prestress ring of cold extrusion mold

A prestressing ring and stress monitoring technology, which is applied in the field of metal plastic processing, can solve problems such as mold and prestressing ring cracking, mold and prestressing ring stress damage, etc., and achieve the effects of convenient operation, improved safety, and reduced costs

Inactive Publication Date: 2012-07-11
舒恒管夹制造有限公司
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  • Abstract
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AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a method and system for monitoring and early warning of the stress of the prestressed ring of a cold extrusion die. Rings are prone to stress damage due to excessive load, and avoid safety problems caused by cold extrusion equipment, molds and prestressed rings cracking due to stress damage

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  • Stress monitoring and early warning method and system for prestress ring of cold extrusion mold
  • Stress monitoring and early warning method and system for prestress ring of cold extrusion mold

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[0022] specific implementation plan

[0023] In order to make the purpose, technical solution and advantages of the present invention clearer, the device of the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments:

[0024] A cold extrusion die stress monitoring and early warning system consists of six parts: strain gauges, bridge box 3, dynamic strain gauge 4, industrial computer 2, feedback control switch 7, and alarm 8.

[0025] The strain gauge adopts a resistive strain gauge 11, which is pasted on the surface of the surface-treated prestressing ring 14. The surface of the resistive strain gauge 11 is covered with a layer of polyethylene film. The bridge box 3 input terminals are connected.

[0026] The bridge box 3 has an input terminal and an output terminal, the bridge box 3 input terminal is connected to the resistive strain gauge 11 by a wire, the bridge box 3 output terminal is connected to the inp...

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Abstract

The invention relates to the metal plastic processing field, in particular to a stress monitoring and early warning method and system for a prestress ring of a cold extrusion mold. The system consists of a strain foil, a bridge box, a dynamic strain meter, an industrial computer, a feedback control switch and an alarm. By implementing the stress monitoring and early warning method and system for the extrusion mold, the strain value and the strain situation of the prestress ring of the mold can be measured in real time, the goal of monitoring the prestress ring of the mold in real time can be achieved by presetting a stress safety value, the problem that the mold and the prestress ring are apt to be ruptured under stress because of too high load is solved, and the safety problem which is caused when the mold and the prestress ring are ruptured because of stress rupture is avoided.

Description

technical field [0001] The invention relates to the field of metal plastic processing, in particular to a stress monitoring and early warning method and system for a prestressing circle of a cold extrusion die. Background technique [0002] Metal cold extrusion plastic forming technology greatly reduces the amount of mechanical processing of parts, significantly improves the internal microstructure and performance of the workpiece, and improves the quality of the workpiece. It is an advanced manufacturing technology of energy saving and material saving. Plastic deformation requires a very large pressure. The presses used in the extrusion process use high power, and the pressure often reaches hundreds of tons, which puts extremely high requirements on the cold extrusion equipment and molds; During the pressing process, the concave die of the mold is repeatedly subjected to huge extrusion loads, and the method of adding a prestressed ring to the mold structure is often used to...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01L1/22B21C31/00
Inventor 冯爱新武晓志王亚军顾永玉
Owner 舒恒管夹制造有限公司
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