Tension adjusting mechanism of diamond wire extracting machine

Abstract

The invention provides a tension adjusting mechanism of a diamond wire extracting machine, which is applied to a diamond wire extracting machine provided with a filament storage barrel, a diamond wire, a first guide wheel and a second guide wheel. The tension adjusting mechanism provided by the invention at least comprises a tension wheel, a tension sensor, a servo motor and a screw rod, wherein the tension wheel is used for dragging the diamond wire between the first guide wheel and the second guide wheel; the tension sensor is arranged on the tension wheel and continuously senses the tension value of the diamond wire; the servo motor is electrically connected with the tension sensor and works after receiving driving signals sent by the tension sensor; one end of the screw rod is connected with the tension wheel, and the other end of the screw rod is connected with the servo motor; and when the servo motor works, the screw rod is utilized to drag the tension wheel to make a unidirectional displacement to adjust the tension of the diamond wire, thereby solving the problems that the cutting work is not beneficial to implementation and the like because the tension compensation of a tension compensating mechanism is insufficient, the compensation is not timely and the tension sensing is not accurate in the prior art.

Description

technical field [0001] The invention relates to a multi-wire cutting technology, in particular to a tension adjustment mechanism of a diamond wire square cutting machine. Background technique [0002] Wire cutting technology is a relatively advanced silicon wafer processing technology in the world at present. Its principle is to use a high-speed moving steel wire to drive the cutting blade attached to the steel wire to rub against hard and brittle materials such as semiconductors, so as to achieve the purpose of cutting. . Compared with the traditional knife saw blade, grinding wheel and internal circle cutting, the wire cutting technology has the advantages of high efficiency, high production capacity and high precision. [0003] During the cutting process of the workpiece, the steel wire is guided by more than a dozen wire pulleys to form a wire net on the main wire roller, and the workpiece to be processed is fed by the rise and fall of the worktable, and the pressure pu...

AI Technical Summary

Problems solved by technology

[0008] Another object of the present invention is to provide a tension adjustment mechanism of a diamond wire squarer, so as to avoid the inaccurate tension sensing caused by the tension compensation mechanism in the prior art being arranged between the cutting wheel and the guide wheel, which is not conducive to Cutting work etc.

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