Electro-hydraulic combined supply system used for electrical discharge machining and supporting automatic tool changing

Abstract

The invention discloses an electro-hydraulic combined supply system used for electrical discharge machining and supporting automatic tool changing. The electro-hydraulic combined supply system comprises an electro-hydraulic combined supply device and a clamping device, wherein, the electro-hydraulic combined supply device comprises an insulating base, an electro-hydraulic combined supply base, anelectro-hydraulic combined supply pipe terminal and an electro-hydraulic combined supply pipe, the electro-hydraulic combined supply base is fixedly connected with a main shaft outer shell through theinsulating base, a working fluid pipe connector and a binding post are arranged on the electro-hydraulic combined supply base, a terminal connector at the bottom end of the electro-hydraulic combinedsupply base is clamped with the top end of the electro-hydraulic combined supply pipe terminal, and the electro-hydraulic combined supply pipe terminal is in communication with a liquid flushing binin an electric discharge machining electrode knife handle through the electro-hydraulic combined supply pipe; and the clamping device comprises a first clamping mechanism arranged at the clamping endof a tool changing mechanical arm, a second clamping mechanism arranged on a tool magazine base clamping unit and a matching mechanism arranged on the outer wall of the liquid flushing bin, and the first clamping mechanism or the second clamping mechanism can be fixedly connected with the matching mechanism so as to limit the liquid flushing bin in the circumferential direction. According to the electro-hydraulic combined supply system, the tool changing efficiency of electrical discharge machining is improved.

Description

technical field [0001] The invention relates to the technical field of electrical discharge machining, in particular to an electro-hydraulic combined power supply system used for electrical discharge machining and supporting automatic tool change. Background technique [0002] EDM includes EDM and arc machining, etc. It relies on the high temperature of the plasma generated by the direct discharge between the positive and negative electrodes to etch the material, and the electrode does not touch the workpiece during processing. It is a common special processing method and is widely used in industries such as molds and aerospace. The working fluid used is an insulating working fluid, and the plasma disappears in the pulse gap, and the working fluid returns to an insulating or high-impedance state. Therefore, power supply, electrodes, and flushing are necessary conditions for EDM. [0003] The efficiency of arc machining in electrical discharge machining is extremely high, a...

AI Technical Summary

Problems solved by technology

At present, in the process of tool holder replacement, there must be manual intervention to install or remove the flushing parts and conductive parts, and automatic replacement cannot be realized, which will affect the processing efficiency and increase the workload of operators.

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