Bilateral tensioning device for wire electrode of synchronous wire-cut electric discharge machine tool

Abstract

The invention relates to a bilateral tensioning device for a wire electrode of a synchronous wire-cut electric discharge machine tool, which comprises a base and a vertical bracket, wherein the vertical bracket is fixed on the base, an upper fixed shaft which is horizontally arranged is fixedly arranged at the upper end of the vertical bracket, and one end of the upper fixing shaft is provided with an upper guide wheel; and one side of the vertical support is provided with a horizontally arranged guide rod positioned below the upper fixing shaft, the upper fixing shaft is perpendicular to theguide rod, the guide rod is provided with a sliding block capable of sliding along the guide rod, and is provided with a return spring between one side of the vertical support and the sliding block, one end of the return spring is in contact with one side of the vertical support, the other end of the return spring is in contact with the sliding block, the sliding block is provided with a lower fixing shaft parallel to the upper fixing shaft, and one end of the lower fixing shaft is provided with a lower guide wheel positioned on the same side as the upper guide wheel. The wire electrode is fully tensioned by the upper guide wheel and the lower guide wheel which are arranged on the same side and staggered up and down, so that the stability of the discharge between the wire electrode and a workpiece is ensured.

Description

technical field [0001] The invention relates to the technical field of wire electric discharge machining, in particular to a bilateral tensioning device for an electrode wire of a synchronous wire electric discharge machine tool. Background technique [0002] Wire EDM is a processing technology based on the principle of EDM. It uses the wire electrode as the wire electrode, and the working fluid is instantly broken down by the interelectrode discharge of the wire electrode to form a discharge channel to remove the metal material. The processing is not in direct contact with the metal surface, so it is especially suitable for processing difficult-to-machine materials. [0003] For the wire-cut processing of automobile tire molds, the application laboratory has developed a synchronous wire-cut electric discharge machine tool, which processes four stations simultaneously through an electrode wire, so that the tire mold can be cut easily, greatly The production time and cycle o...

AI Technical Summary

Problems solved by technology

However, in the process of actual processing, we found that due to the complexity of the wire mechanism of the machine tool and the uncertainty of the discharge between electrodes, etc., these factors are easy to cause relaxation or even breakage of the electrode wire, and this situation is often It happened not long after the processing started, which not only affects the existing processing efficiency, but also has certain safety problems

Moreover, the tensioning device of the prior art is only used for the common wire-cut electric discharge machine tool, and it is not suitable for the wire-cut machine tool for simultaneous processing of the above four stations. The Wire Cutting Wire Tensioner is crucial

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