Tension spring restore mechanism and device

Abstract

A tension spring restore mechanism and device comprises a first part and a second part, wherein a tension spring component is arranged between the first part and the second part. A metal sensing probe is arranged in the direction directly facing to the tension spring component, thereby allowing the metal sensing probe to detect a fracture state of the tension spring. Comparing the pulling piece of the tension spring restore mechanism and device with a conventional spring having hanging hooks on two ends, the stressed area when the tension spring is working is increased, thereby effectively preventing the spring from suddenly breaking when the spring is working, and extending the service life of the tension spring. The match among the metal sensing probe and two expansion pieces allows the signal to be sent into a CNC system timely when the spring is broken, thereby stopping the running of equipment, and ensuring the safety of the equipment and the operators.

Description

【Technical Field】 [0001] The invention relates to the field of returning and returning moving parts of machine tools, in particular to a tension spring returning mechanism and equipment, which are widely used in clamp arm type tool magazine CNC machine tools. 【Background technique】 [0002] The spring return mechanism is often used to provide power for the reciprocating movement of mechanical equipment components. It is favored by the majority of mechanical designs and users because of its low cost, large specifications, and easy replacement and assembly. However, common spring life problems and the problems of sudden rupture during use due to life reasons can easily lead to equipment damage and injury to mechanical operators. For automation equipment, the absence of a detection prompt device after the spring breaks will directly lead to the expansion of the loss scale and bring huge losses to the production line. [Content of the invention] [0003] The present invention aims to ...

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