Electrolytic machining tool used for flexible part

Abstract

The invention relates to an electrolytic machining tool used for a flexible part. The electrolytic machining tool comprises a base and a cover plate, a groove body penetrating through the left side face and the right side face of the base is formed in the base, the groove body comprises a first groove body matched with an electrolytic machining cathode and a second groove body matched with a to-be-machined assembly, the to-be-machined assembly is limited by a positioning and clamping device to move and rotate in the second groove body, a sealing plate is arranged on the left side face of the base, a fixing plate is arranged on the right side face of the base, the groove body forms a closed cavity under matched connection of the sealing plate, the fixing plate, the cover plate and the base,the cover plate and the base are provided with an electrolyte inlet channel and an electrolyte outlet channel respectively, the electrolytic machining cathode is connected with a transmission shaft of a mechanical vibration feeding mechanism in an insulating mode, and the transmission shaft drives the electrolytic machining cathode to horizontally feed along the direction limited by the first groove body, so that a cathode cutter on the electrolytic machining cathode is used for carrying out electrolytic machining on the to-be-machined assembly. The electrolytic machining tool has the advantages of wide machining range, high machining efficiency, good machined surface quality and the like.

Description

technical field [0001] The invention relates to the field of electrolytic machining, in particular to an electrolytic machining tool for flexible parts. Background technique [0002] In order to provide adequate visual feedback to the surgeon and enable dexterous tissue manipulation in modern medicine, endoscopes and other manipulable surgical instruments must have bendable and steerable sections called flexible joints. Flexible joints can be short wrists used to deflect surgical instruments, or longer sections, such as those used in continuous snake-like robots for traversing surgical anatomy. [0003] Integral fabricated flexible joints can ease the fabrication and assembly work, and continuous mechanisms with superelastic NiTi backbones and push-pull actuators belong to this category. To form a thin flexible joint with a large central lumen, casting techniques are typically used to fabricate or flex features are created on the surface of the NiTi tube by laser cutting, w...

AI Technical Summary

Problems solved by technology

Although the casting method is used to produce flexible parts, although the cost is low, the quality and precision are difficult to guarantee, and the scrap rate is also high

It is difficult to process workpieces with complex shapes by laser cutting, wire cutting or CNC manufacturing technology, and it will generate mechanical cutting force, which is prone to stress concentration and fatigue problems

Additive manufacturing technology can produce flexible parts with complex shapes and does not require traditional tools and machine tools, but there are many limitations, such as poor mechanical properties of the produced parts (low precision, more fatigue and rough surface) )

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