An electrode wire tension adjustment mechanism of a wire-cut electric discharge machine

Abstract

The invention discloses an electrode wire tension adjusting mechanism of a wire electric discharge machine tool, comprising a mechanism fixing seat, a motor, a steel rope, a pulley, a pulley support, a first base, a first slider, a distance measuring sensor, a constant force spring, Spring support, second base, second slide, tensioning guide wheel and guide rail. The constant force spring is connected with the tension guide wheel through the second base, and its free end is connected with the steel rope through the first base. The distance measuring sensor is installed on the first base to measure the distance from the constant force spring to the first base. The first base Installed on the first slide block, the other end of the steel rope goes around the pulley to connect with the motor. The effective combination of the motor and the constant force spring, the constant force spring regulates the tension force of the electrode wire on the "micro level", and the "macro" level of the motor regulates the tension force, and rationally utilizes the characteristics of constant tension and rapid response of the constant force spring At the same time, the "macro" regulation of the motor makes the elongation of the constant force spring change within a certain range, which solves the problem of system oscillation very well.

Description

technical field [0001] The invention relates to the technical field of wire electric discharge machining, in particular to an electrode wire tension adjusting mechanism of a wire electric discharge machine tool. Background technique [0002] The wire electric discharge machining technology uses the moving electrode wire to perform pulse spark discharge on the workpiece, melts and erodes the material, and the cutting fluid washes away the eroded products, so as to maintain a good insulating environment between the electrodes and avoid short circuits. In the fast-feeding wire cutting technology, the high-speed moving wire electrode can better bring the cutting fluid into the cutting groove to achieve better chip removal effect. However, the high-speed movement of the electrode wire is likely to cause the electrode wire to vibrate; in addition, due to the error in the installation of the guide wheel, the friction force of the electrode wire is inconsistent when it moves back an...

AI Technical Summary

Problems solved by technology

[0006] Aiming at the above-mentioned problem that the wire electric discharge machine tool cannot be tensioned with a real constant force, the present invention proposes a wire electrode tightness adjustment mechanism to solve the above-mentioned problem

Images