Method and device for detecting cutting line tension of non-contact multi-line cutting machine

Abstract

The invention discloses a method and a device for detecting the cutting line tension of a non-contact multi-line cutting machine. In order to realize reliable detection of the cutting line tension in a severe environment, the detection device comprises a tension arm which can swing around a supporting point, wherein one end of the tension arm is used for connecting a line wheel wound with a cutting line; the other end of the tension arm can be used for driving a tested metal rod to move linearly in a reciprocating way through a connecting rod; one side of the metal rod is provided with a non-contact probe for detecting the linear displacement delta L of the tested metal rod; an elastic element for preventing the tension arm from swinging is arranged between the tension arm and the supporting point. According to the method and the device, the reliability of the cutting line tension detection of the multi-line cutting machine in a wet and severe environment is enhanced.

Description

technical field [0001] The invention relates to a non-contact multi-wire cutting machine cutting wire tension detection method and device, which are used to realize reliable detection of the cutting wire tension in the humid and harsh environment of the multi-wire cutting machine, and belong to the field of special equipment for slicing processing. Background technique [0002] The multi-wire cutting machine is a kind of efficient slicing processing equipment. Its principle is to bring the abrasive into the processing area of ​​the material to be cut through the high-speed reciprocating motion of the metal wire for grinding, and cut the piece to be cut into hundreds or thousands of thin slices at the same time. It has the advantages of high cutting efficiency and low material loss, and is widely used in the processing of hard and brittle materials such as silicon-based solar cells, artificial gemstones, sapphire, silicon carbide, crystal, and ceramic glass. The broken line f...

AI Technical Summary

Problems solved by technology

[0004] In order to overcome the shortcomings of the existing cutting wire tension detection device that the varistor is easily polluted, the tensiometer is easily damaged, and the adaptability to harsh environments is poor, the present invention aims to provide a non-contact multi-wire cutting machine cutting wire tension The detection method and device, the detection method and device adopt the "position-measuring" tension detection idea, first convert the tension of the cutting line into the linear displacement of the metal rod under test in the tension detection device, and then use the non-contact eddy current displacement sensing element The linear displacement of the measured metal rod is detected, and finally the data processor calculates the tension of the cutting line indirectly according to the relationship between tension and displacement

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