Electrolytic machining device

Abstract

The invention discloses an electrolytic machining device. The electrolytic machining device comprises an electrolytic liquid bath, a circulation pipe, a machining power and a worktable, and further comprises an electrolytic cathode and a torsional vibration device; a nozzle of the electrolytic cathode is connected with a cathode of the machining power; the anode of the machining power is connectedwith a workpiece; the nozzle of the electrolytic cathode communicates with the electrolytic liquid bath through the circulation pipe; and the torsion vibration device is used for controlling the electrolytic cathode to generate reciprocated torsion vibration. According to the electrolytic machining device provided by the invention, the electrolytic cathode can perform high-frequency reciprocatedtorsion vibration at a certain torsion angle through the arrangement of the torsion vibration device; side wall remaining materials on the surface of the workpiece are removed in real time through a method of high-frequency vibration of the nozzle of the electrolytic cathode; compared with the prior art, the technique has the advantages that residual of the side wall remaining materials is avoided; meanwhile, an agitation effect can be exerted on nearby flow fields, so that machining clearance flow fields can be homogenized; generation of vortex zones and flow rate dead zones is eradicated; and machining efficiency is improved.

Description

technical field [0001] The invention relates to the technical field of electrolytic machining, in particular to an electrolytic machining device. Background technique [0002] With the development of social economy and industrial technology, the requirements for the precision and efficiency of machining and manufacturing of mechanical devices are increasing day by day. [0003] The cathodic electrolytic machining method of the internal spray type oblique nozzle can realize efficient and stable large depth of cut "one-pass" electrolytic machining. important application. [0004] However, due to the influence of the structure of the cathode in the current internal-spray oblique nozzle electrolytic machining device, when using the oblique nozzle cathode for electrolytic machining, undissolved particles will gradually form in the direction of the side wall surface of the processed workpiece facing the oblique nozzle. Side wall left over. These sidewall residues will have a gr...

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Problems solved by technology

[0004] However, due to the influence of the structure of the cathode in the current internal-spray oblique nozzle electrolytic machining device, when using the oblique nozzle cathode for electrolytic machining, undissolved particles will gradually form in the direction of the side wall surface of the processed workpiece facing the oblique nozzle. Side wall leftover

These sidewall residues will have a great impact on electrolytic processing: on the one hand, the existence of residues will reduce the flow area of ​​the liquid outlet, and form a "back pressure" effect at the liquid outlet of the inclined nozzle, although it is beneficial to homogenization The flow field distribution reduces the vortex zone and improves the stability of electrolytic processing, but on the other hand, the existence of residual material will also hinder normal processing, especially in the "cutting out" process of the inclined nozzle cathode and the direction of the inclined nozzle cathode movement trajectory. When the surface of the workpiece is facing the liquid outlet of the oblique nozzle, there will inevitably be sidewall residues, which will bring difficulties to the cutting process and the reversing of the cathode trajectory; making the existing oblique nozzle cathode electrolytic machining technology unable to positively The method of spraying liquid realizes the processing of complex curved grooves or CNC electrolytic milling

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