Clamping device for tool and workpiece electrode for electric discharge forming

Abstract

The invention discloses a clamping device of tool and workpiece electrodes for electric spark forming machining. The device comprises a supporting seat, and is characterized in that moving sliding ways are arranged at the two ends of the supporting seat respectively; a fixing bolt hole is formed in the bottom end of the supporting seat; two L-shaped pressing plates are mounted at the upper end of the supporting seat; two bolt counter bored holes are formed in the outer sides of the two L-shaped pressing plates respectively; the two L-shaped pressing plates are connected with pressing bolts through the bolt counter bored holes; the pressing bolts are connected with the supporting seat through ball head nuts and the moving sliding ways; a workpiece is arranged between the two L-shaped pressing plates; a turning tool electrode is arranged at the upper end of the workpiece; the turning tool electrode can machine the bottom surface of the workpiece. The clamping device is easy to operate, stable and reliable during clamping, capable of machining upper and bottom surfaces without adjustment of the workpiece and easily removing electric corrosion products and high in practicability.

Description

technical field [0001] The invention relates to the field of mechanical processing, and more specifically relates to a clamping device for a tool for electric discharge forming processing and a workpiece electrode. Background technique [0002] EDM is a relatively mature technology in special processing. EDM has many advantages that cannot be compared with traditional cutting. It has been widely used in mold manufacturing, aerospace, electronics, automobiles, light industry and other industries to solve difficult machining. Processing problems of materials and complex shape parts. [0003] Electro-corrosion products will be produced during EDM. If there are too many electro-corrosion products in the discharge gap, "secondary discharge" will be caused on the processed surface, which will affect the processing accuracy, so it should be eliminated in time. In addition to natural diffusion and regular lifting of the knife, the existing elimination methods mainly adopt the metho...

AI Technical Summary

Problems solved by technology

Forced circulation is divided into two types: oil flushing type and oil pumping type, but each has limitations in application. The oil flushing type is easier to realize and has many applications, but the electrolytic corrosion products still pass through the processed area, which will affect the processing accuracy; if Using the oil pumping type, the gas decomposed during the processing (H 2 、C 2 h 2 etc.) are easy to accumulate in the dead corner of the oil pumping circuit, and will explode and "fire" when ignited by an electric spark

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