Electrolyte pulse type electrolytic machining device and method

Abstract

The invention discloses an electrolyte pulse type electrolytic machining device and method. The electrolyte pulse type electrolytic machining device comprises a Z-axis feeding system, an eccentric camvibration mechanism, a control system, an electrolytic machining power source and an electrolyte supply system; the eccentric cam vibration mechanism comprises a motor, an eccentric cam, a connectingrod, a guide rail, a piston rod and a piston, the motor is connected with the eccentric cam, the connecting rod movably sleeves the eccentric cam, and the piston rod transversely runs along the guiderail under the action of the connecting rod to push the piston to push the electrolyte from one side of a machining gap to the other side; and the electrolyte makes pulsating motion under the assistance of the eccentric cam vibration mechanism, and when a workpiece anode gets close to a workpiece cathode and the machining gap is small enough, under the action of an electric field and a flow field, the anode workpiece is electrochemically dissolved and machined to approximately copy the outline of the tool cathode. The requirements for the amplitude position of the vibration mechanism and therigidity of the mechanism are not high, the cost is reduced, small-gap machining in electrolytic machining can also be achieved, and in other words, high-precision electrolytic machining is achieved.

Description

Technical field [0001] The invention relates to an electrolytic machining device and method, in particular to an electrolytic pulse type electrolytic machining device and method. Background technique [0002] Electrochemical machining is based on the principle of anode dissolution in the electrolysis process and with the help of a shaped cathode, a process method that shapes the workpiece according to a certain shape and size. Electrochemical machining uses the principle of electrochemical anodic dissolution of metals in electrolyte to process workpieces. During processing, the workpiece is connected to the positive pole of the DC power supply and the tool is connected to the negative pole, keeping a small gap between the two poles. The electrolyte flows through the gap between the electrodes, forming a conductive path between the two electrodes, and generating current under the power supply voltage, thereby forming an electrochemical anode dissolution. With the continuous feed...

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Problems solved by technology

[0004] Conventional cam-type vibrating electrolytic machining machine tools have high requirements on the rigidity of the bed and the main shaft. The inertia of the mechanical vibration mechanism is large, and the impact force on the machine tool is large. Long-term use will reduce the life of the main shaft and the transmission mechanism.

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