Electric discharge machining jig and method

Abstract

The invention provides an electric discharge machining jig which includes a jig body, a positioning assembly and a fixing assembly. The top of the jig body is provided with a groove, and the groove isused for accommodating an electrode; the positioning assembly is arranged at the position near the groove and is used for fixing the electrode; and the fixing assembly includes a fixing handle and aconnecting member, the fixing handle is arranged on the bottom surface of the jig body and located at the center position of the bottom surface of the jig body, and the connecting member is used for mounting the fixing handle to electric discharge machining equipment and electrode processing equipment. According to the electric discharge machining jig, the fixing assembly is arranged at the centerposition of the bottom surface of the jig body, after the electrode is fixed to the jig body, the electrode and the jig body can be integrated to be mounted to the electrical discharge machining jigthrough the fixing assembly, and the step of calibrating the electrode is eliminated.

Description

technical field [0001] The invention relates to the technical field of mold processing, and more specifically, to an electrical discharge machining fixture and method. Background technique [0002] With the development of the mold industry, the requirements for the precision and complexity of the mold are getting higher and higher, and at the same time, more stringent requirements are put forward for the processing cycle of the mold. [0003] In the actual processing of molds, the processes with relatively long processing time and relatively low efficiency are mainly concentrated in the EDM process. EDM is mainly aimed at workpieces that cannot be processed by other processing methods in the machining center. The processing positions are generally narrow and deep positions such as ribs and columns, and require high machining accuracy. However, a part on the mold often requires multiple copper males or electrodes to complete the processing, and each copper male or electrode ...

AI Technical Summary

Problems solved by technology

There are two screws to fix and adjust the direction of the chuck for loading copper or electrodes on the spark machine, and the two screws cannot be tightened synchronously. The copper or electrodes will tilt under the stress of the two screws successively, resulting in The Z-axis direction is not vertical. At the same time, when the two screws are manually tightened, the tightening force is often not guaranteed to be the same, which will also cause the copper male to tilt, and eventually lead to EDM quality problems.

[0004] In addition, even if the copper male is aligned, it is still necessary for the copper male to touch the origin of the mold for electrical discharge machining. Repeated calibration and adjustment of the copper male or electrode not only wastes man-hours, but also easily causes the mold to be discharged due to unaligned conditions. Abnormal quality and other issues

Therefore, the existing processing mode leads to high work intensity of the processing master, and also restricts the effective working time of the spark machine

Images