Static constant-tension control system for reciprocation high-speed wire traveling

Abstract

The invention discloses a static constant-tension control system for reciprocation high-speed wire traveling. The system comprises first guiding wire wheels A-D, second guiding wire wheels A-B, a wire entering guiding pulley, a tension controller, a tension sensor, a first wire feeding wheel taking-up and paying-off device, a second wire feeding wheel taking-up and paying-off device, a first constant tension adjusting device and a second constant tension adjusting device, wherein the tension sensor, the first wire feeding wheel taking-up and paying-off device, the second wire feeding wheel taking-up and paying-off device, the first constant tension adjusting device and the second constant tension adjusting device are respectively connected with the tension controller. The structural design is ingenuous and reasonable, the wire feeding wheel structure is adopted for replacing traditional wire winding drums, the problem that because the wire drums are not concentric, a wire electrode resonates and shakes is solved, it is effectively guaranteed that the tension of the wire electrodes is constant, and machining efficiency is improved; moreover, original positions of a tension wheel and the wire electrode do not need to be adjusted, people only need to control rotation speed of a servo motor, and therefore operation is easy; meanwhile, a symmetrical structure design is adopted, so that matched wire loosening and reciprocation operation on the two sides are achieved, the problem that because single-side wire loosening and reciprocation operation are adopted, the tension is not constant is effectively solved, constancy of the tension is further kept, and machining precision is improved.

Description

technical field [0001] The invention relates to a wire cutting machine tool, in particular to a static constant tension control system for reciprocating high-speed wire-feeding. Background technique [0002] The wire cutting machine is a processing machine tool that adds high-frequency power to both ends of the electrode wire, and realizes the removal of metal materials by controlling the discharge. [0003] In the processing and use of wire cutting machine, the smoothness of wire electrode operation has a great influence on the processing performance of the machine tool. During the use of the machine tool, streaks appear on the surface of the machined parts, and abnormal phenomena such as broken wires during the machining process are often directly related to the smoothness of the electrode wire operation. [0004] However, the existing wire-cutting machines all use the spinning drum to take in and out the wire, which is prone to the resonance and vibration of the wire ele...

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Problems solved by technology

[0004] However, the existing wire-cutting machines all adopt wire-rotating cylinders to take in and out the wires, which is prone to resonance and vibration of the electrode wire due to the non-concentricity of the wire-rotating cylinders, which seriously affects the wire cutting effect.

Moreover, it is troublesome to adjust the tension of the electrode wire. It is necessary to adjust the position of the tension wheel through the dynamic direction of the wire to adjust. Structural design, it is difficult to ensure constant tension, which will directly affect the effect of wire cutting

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