Rotary table protection device of numerically-controlled electrolytic machine tool

Abstract

The invention discloses a rotary table protection device of a numerically-controlled electrolytic machine tool. The device comprises a non-corrosion resistant precise numerically-controlled rotary table; a marble platform is arranged at the lower end of the non-corrosion resistant precise numerically-controlled rotary table; an insulating turntable is arranged at the upper end of the non-corrosion resistant precise numerically-controlled rotary table; an upper mandrel is arranged at the upper end of the insulating turntable; a lower mandrel is arranged at the lower end of the turntable; the lower mandrel is firmly sleeved in the upper end hole of the non-corrosion resistant precise numerically-controlled rotary table; a seal cover is also arranged on the outer side of the non-corrosion resistant precise numerically-controlled rotary table; the upper end of the seal cover is hermetically connected with the insulating turntable; the lower end of the seal cover is hermetically connected with the marble platform; and the marble platform is also connected with a work box. The protection device disclosed by the invention can be used for effectively preventing corrosion and electrochemical corrosion of the numerically-controlled rotary table, and improving the indexing and rotary positioning accuracy of the rotary table of the existing numerically-controlled electrolytic machine tool.

Description

technical field [0001] The invention relates to a protective device for a rotary table of a numerically controlled electrolytic machining machine tool, which belongs to the technical field of electrolytic machining machine tool manufacturing. Background technique [0002] Electrolytic machining is a method that uses the principle of electrochemical anodic dissolution of metals to realize the machining and shaping of workpieces. Compared with other processing methods, electrolytic machining has the advantages of wide processing range, high processing efficiency, good surface quality, no loss of tools, and no mechanical cutting force. It is suitable for mass production of difficult-to-cut materials and complex-shaped parts. [0003] As an accessory of the CNC electrolytic machining machine tool, the CNC rotary table is an important carrier of the electrolytic machining process. Its performance directly affects the promotion and application of the electrolytic machining process...

AI Technical Summary

Problems solved by technology

[0005] Due to the particularity of the machining environment, the rotary table of the CNC electrolytic machining machine tool is often combined with Nacl, NaNo 3 If non-corrosion-resistant materials such as cast steel and cast iron are used in contact with salt solution, the rotary table is prone to rust; during electrolytic processing, the workpiece is positively charged and the cathode of the tool is negatively charged. If the workpiece cannot be completely insulated from the CNC rotary table, The rotary table is very prone to electrochemical corrosion

Both rust and electrochemical corrosion will affect the accuracy of the rotary table of the CNC electrolytic machining machine tool, greatly reducing the service life of the rotary table

If a specially customized stainless steel CNC rotary table is used, the rotary table can be in direct contact with the electrolyte without rust, but its material and manufacturing costs are expensive, and the positioning accuracy of rotation and indexing is difficult to guarantee. The insulation problem is still difficult to solve

[0006] Since the protection problem of the rotary table of CNC electrolytic machining machine tools has been difficult to solve, the rotary table is prone to rust and electrochemical corrosion, which makes the rotation and indexing positioning accuracy of CNC rotary table in electrolytic processing machine tools generally relatively low, and the service life is also short. Due to great restrictions, the non-corrosion-resistant precision CNC rotary table used in traditional CNC machining tools is difficult to apply to CNC electrolytic machining machines

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