General T-shaped fixture used for die electrode machining

Abstract

The invention discloses a general T-shaped fixture used for die electrode machining. The general T-shaped fixture comprises a T-shaped body, a fixture clamping groove, mechanical hand sliding grooves and a ladder-shaped groove, wherein the square fixture clamping groove is formed in the left side of the T-shaped body; the ladder-shaped groove is formed in the right side of the T-shaped body; and the mechanical hand sliding grooves are symmetrically distributed in the front side surface and the rear side surface of the T-shaped body. According to the general T-shaped fixture, an electrode blank to be machined only needs to be clamped once by the general fixture without repeated replacement of the fixture in the CNC (computer numerical control) machining, EDM (electric discharge machining) electric spark forming machining and wire cutting machining processes, so that the clamping precision and the repeated positioning precision of a die electrode can be improved, the machining efficiency of die manufacture can be improved, and the convenience is provided for flow line production of die manufacture.

Description

technical field [0001] The invention relates to the field of injection mold processing, in particular to a general T-shaped clamp used for processing mold electrodes. Background technique [0002] Injection mold processing includes various processing methods such as turning, milling, grinding, wire cutting and EDM. A pair of molds, especially in the processing of its cavity, often use EDM electric discharge machining, and when processing electrodes for EDM electric discharge machining, the processing machine tools used are different with the different processing procedures. Different fixtures are required to clamp and position the electrode on the processing machine tool. The disassembly and clamping process of the fixture will not only bring a lot of tedious and repetitive mechanical labor, prolong the processing time, but also affect the clamping of the mold electrode. Accuracy and repeatability of positioning. [0003] Such as figure 1 As shown, when processing electro...

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Problems solved by technology

After the CNC machining center completes the processing of the electrode, if wire cutting processing is required, the wire cutting wire needs to pass through the workpiece, and the above-mentioned fixture cannot pass the wire cutting wire through the electrode due to the barrier between the clamping groove and the base, resulting in the failure of processing. complete, requiring replacement of the electrode holder

When the processed electrode needs to be used for EDM electric discharge forming processing in the future, the fixture must be replaced again. Therefore, the repeated positioning accuracy of the electrode clamping is not high, the clamping error increases, and the work efficiency is reduced. Therefore, a mold electrode is designed. With a universal fixture,

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