Limit detection device for wire tensioning limit position of wire cutting machine tool

Abstract

The invention discloses a limit detection device for wire tensioning limit position of a wire cutting machine tool, which is arranged on a wire tensioning mechanism of the wire cutting machine tool, wherein the wire cutting machine tool comprises a machine body base, a wire storage cylinder, a wire storage cylinder moving part, molybdenum wires, a workbench component, a guide wheel component, a guide wheel supporting frame and the wire tensioning mechanism. The wire tensioning mechanism comprises a wire tensioning mechanism supporting plate, a sliding block and a lower wire tensioning guide wheel, wherein the wire tensioning mechanism supporting plate is vertically arranged, installed between an upper wire frame and a lower wire frame in the vertical direction, and provided with a verticalstraight groove, the sliding block is arranged in the straight groove of the wire tensioning mechanism supporting plate and is in clearance fit with the straight groove of the wire tensioning mechanism supporting plate; a limiting block is arranged on the end surface of the lower part of the sliding block, and a limiting switch corresponding to the left position, the right position, the front position and the rear position of the limiting block is arranged on the end surface of the wire tensioning mechanism supporting plate below the vertical straight groove to form a limit detection device for wire tensioning limit position. The limit detection device for the wire tensioning limit position of the wire cutting machine tool can warn and prompt in time when reaching the wire tensioning limit position, and effectively ensure the normal operation of the wire tensioning mechanism for wire cutting.

Description

technical field [0001] The invention relates to the technical field of electric discharge cutting machine tools, in particular to a wire cutting machine tool wire tension limit position limit detection device. Background technique [0002] Wire cutting machine tool includes bed base, wire storage tube, moving parts of wire storage tube, molybdenum wire, workbench assembly, guide wheel assembly, guide wheel support frame, wire tensioning mechanism, and the wire tensioning mechanism includes a wire tensioning mechanism support plate, slider , the lower tension guide wheel; the support plate of the tension mechanism is vertical, set on the right side of the storage cylinder, and fixedly connected to the left end of the lower wire rack; the support plate of the tension mechanism is provided with a vertical straight groove; the slider is installed on the In the straight groove of the supporting plate of the tensioning wire mechanism, it cooperates with the straight groove of the ...

AI Technical Summary

Problems solved by technology

Under the action of the slider's own weight, the lower wire tensioning guide wheel moves downward with the slider to achieve the purpose of wire tensioning, but the existing wire tensioning mechanism also has defects: during the processing of the wire cutting machine, the diameter of the molybdenum wire will become smaller and smaller. Thin, the length of molybdenum wire increases continuously, and the slider moves downward accordingly. When the slider moves to the lowest limit position, the lower plane of the slider touches the lower surface of the straight groove of the support plate of the wire tensioning mechanism, and the slider is stretched. The lower surface of the straight groove of the mechanism support plate is supported, the gravity of the slider and the lower tension wire guide wheel is balanced by the lower surface of the straight groove of the wire tension mechanism support plate, and the tension force of the lower tension wire guide wheel to the molybdenum wire no longer exists. The tensioning mechanism loses the tensioning effect

Operators often fail to notice in time that the lower wire tensioning guide wheel moves down to the bottom limit position with the slider, causing the wire tensioning mechanism to lose its tensioning effect, and it is impossible to adjust the position of the slider in time, resulting in the wire cutting wire tensioning mechanism not being able to Normal operation, so it is easy to cause molybdenum wire loosening, which affects the accuracy of wire cutting processing

Images