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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 high measurement accuracy

Inactive Publication Date: 2014-09-10
舒恒管夹制造有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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

Method used

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

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Embodiment Construction

[0022] Specific implementation plan

[0023] In order to make the objectives, technical solutions, and advantages of the present invention clearer, the following describes the device of the present invention in detail with reference to the accompanying drawings and embodiments:

[0024] A cold extrusion die stress monitoring and early warning system consists of six parts: strain gauges, bridge boxes 3, dynamic strain gauges 4, industrial computers 2, feedback control switches 7, and alarms 8.

[0025] The strain gauge adopts a resistance strain gauge 11, which is pasted on the surface of the prestressed ring 14 after surface treatment. The surface of the resistance strain gauge 11 is covered with a polyethylene film. The resistance strain gauge 11 is connected to the electric wire through a single bridge. The input terminal of the bridge box 3 is connected.

[0026] The bridge box 3 has an input terminal and an output terminal. The input terminal of the bridge box 3 is connected to th...

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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 method and system for monitoring and warning the stress of a prestress ring of a cold extrusion die. Background technique [0002] Metal cold extrusion plastic forming technology greatly reduces the amount of machining of parts, significantly improves the internal microstructure and performance of the workpiece, and improves the quality of the workpiece. It is an energy-saving and material-saving advanced manufacturing technology; the metal is at room temperature during cold extrusion plastic forming. The occurrence of plastic deformation requires very large pressure. The presses used in extrusion processing are all high-power, and the pressure is often hundreds of tons, which places extremely high requirements on cold extrusion equipment and molds; During the compression process, the die of the die repeatedly bears huge extrusion loads, and the prestressed ring is often used...

Claims

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Application Information

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Patent Type & Authority Patents(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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