Electric spark linear cutting machine tool

Abstract

The invention relates to the technical field of mechanical equipment, and discloses an electric spark linear cutting machine tool which comprises a supporting bottom plate. Supporting frames are fixedly connected to the two sides of the upper end of the supporting bottom plate, the upper ends of the two supporting frames are fixedly connected with an upper top plate, and two sets of bearing seatsare fixedly installed in the middles of the two sides of each of the two supporting frames. Through the application of ball screws, composite wire arrangement of electrode wires is realized, the length of the electrode wires is effectively increased, and the frequency of frequent reversing of wire storage barrels is reduced, so that the average loss time of the electrode wires is prolonged, and the production efficiency is improved; and meanwhile, with the arrangement of double alternating-current motors, the number of guide wheels in a machining area is reduced, the problems that under the condition that the number of the guide wheels is larger, coplanar adjustment of the guide wheels is complex, and the guide wheels are prone to being interfered by friction, are solved, electric power tension control is achieved, tensioning force is prevented from directly acting on a working area, and the problems that the electrode wires are prone to being lengthened and thinned, and machining efficiency is affected, are solved.

Description

technical field [0001] The invention relates to the technical field of mechanical equipment, in particular to a wire electric discharge machine tool. Background technique [0002] The wire electric discharge machine tool uses electrode wire (molybdenum wire, tungsten molybdenum wire) as the tool electrode, and the working fluid as the medium. Under the action of high-frequency pulse power supply, spark discharge is formed between the tool electrode and the workpiece, and the discharge channel generates high temperature instantaneously. , so that the surface of the workpiece is melted or even gasified. The wire cutting machine tool moves the X-Y carriage and the U-V carriage to make the electrode wire move along the predetermined trajectory for metal cutting, so as to achieve the purpose of processing the workpiece. A mechanical device in which the electrode The wire feeding device is the focus of people's attention. Commonly used wire feeding devices such as image 3 As show...

AI Technical Summary

Problems solved by technology

[0003] There are still some shortcomings in the actual use of the existing wire-feeding tensioning device for wire-cutting electric discharge machine tools: this tensioning method will increase the number of guide wheels in the working area, making the coplanar adjustment of each guide wheel more complicated , and is easily disturbed by friction, which affects the processing quality. Secondly, the molybdenum wire in the working area turns more, which increases the resistance during the operation of the electrode wire. The tension force directly acts on the working area, and the electrode wire is easily elongated and thinned. , not suitable for high current cutting

Images