A tool electrode and electrolytic machining device

Abstract

The invention relates to a tool electrode and an electrolytic machining device. The tool electrode comprises an electrode main body; insulation layers are arranged on the electrode main body by everyother distances; and the insulation layers and electrode layers are alternately arranged. The workpiece electrolytic machining device comprises a control module, a driving module, a power supply and the tool electrode; the driving module is controlled by the control module to drive the tool electrode to move to realize a corresponding relation between the alternate insulation layers and electrodelayers of the tool electrode and workpiece machined surfaces; and when the electrode layers are opposite to the workpiece machined surfaces, the anodic electrochemical dissolution is performed on workpieces to cut materials. The machining device adopts an intermittent machining mode; in the intermittent period, the electrolytic machining is stopped, and no machining product is released; and due toconcentration diffusion and fluid flowing, the quick discharge of electrolytic products in gaps and the quick feeding of fresh electrolyte are facilitated, and the electrolytic machining precision and speed are improved.

Description

technical field [0001] The invention relates to the technical field of electrolytic machining, in particular to a tool electrode and an electrolytic machining device. Background technique [0002] Electrolytic machining is a special processing method based on the principle of electrochemical anodic dissolution, using a certain shape of the tool cathode to process the workpiece into parts that meet certain size and shape requirements. figure 1 It reflects the principle of electrolytic machining. The cathode of the tool electrode is connected to the negative pole of the processing power supply, and the workpiece is connected to the positive pole of the processing power supply. The gap between the tool electrode and the workpiece is connected to the electrolyte. With the feeding of the tool cathode, the anode surface of the workpiece is continuously eroded. The electrolytic reaction product is taken out of the machining gap along with the electrolyte flow, and the anode surface...

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Problems solved by technology

[0005] Flushing is to use high-pressure and high-speed electrolyte to pass into the processing gap. However, in the case where the processing gap is very small, it is difficult to realize the flushing method, and there is a loss along the process of flushing along the processing gap, resulting in the pressure distribution of the electrolyte in the gap. Changes affect processing; tool electrode or workpiece vibration, or tool electrode retraction are all achieved by changing the position of the processing area to diffuse the electrolytic product and electrolyte in the processing gap of the original processing area to achieve renewal. The above methods need to design a The method of driving the motion axis to achieve vibration and retraction has high requirements for the installation accuracy of the tool and the workpiece, the positioning accuracy of the motion axis, and the repeat positioning accuracy. In addition, the tool electrode retraction method will greatly reduce the overall processing speed

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