An ultra-thin wire electrode tensioning fixture with heat-sensitive parts

Abstract

The invention discloses an ultra-fine wire electrode tensioning clamp with a heat sensitive component. One end of a wire electrode is fixedly connected with a first threaded hole in the upper surfaceof an upper clamp through a gasket and a bolt in a matched manner, and the other end of the wire electrode is arranged along the side surface of the upper clamp, a rectangular notch, a wire electrodelimiting groove and the side surface of a lower clamp in sequence and is fixedly connected with a second threaded hole in the side surface of the upper clamp through a gasket and a bolt in a matched manner. A U-shaped groove in the upper clamp is connected with a hot water circulation system through notches in two ends to form water circulation. According to the ultra-fine wire electrode tensioning clamp, the hot water circulation system is used for injecting hot water into the upper clamp and heating the upper clamp, and the volume of the material of the upper clamp expands due to heating todrive the clamped wire electrode to stretch, so that the ultra-fine wire electrode is tensioned. By the adoption of the method, the tension of the ultra-fine wire electrode can be controlled by adjusting the water temperature, and the tension precision can reach the micron level or even higher according to the high and low precision of the linear expansion coefficient of the heat sensitive material and the high and low precision of the water temperature control of the hot water circulation system.

Description

technical field [0001] The invention relates to an ultra-thin wire electrode tensioning fixture with heat-sensitive components, belonging to the field of micro-electrolytic processing. Background technique [0002] Electrolytic wire cutting technology is developed from traditional electrolytic machining. It is a micro-precision electrolytic machining technology that uses metal wires as tool cathodes and removes workpiece materials based on the principle of electrochemical anodic dissolution. Compared with the traditional electrolytic machining, the most significant advantage of this machining method is that the manufacture of the tool cathode is simpler, and it also has many advantages of the traditional electrolytic machining, such as no stress in machining, no deformation of the workpiece, no cold hardening layer on the surface, and no hot reheating. cast layer, etc., which are not limited by the mechanical properties of the workpiece material, and are suitable for the pro...

AI Technical Summary

Problems solved by technology

At present, there is no fixture that can tension the wire electrode during processing, but the phenomenon of wire electrode relaxation during processing is obvious. If the processing is stopped, loading and unloading parts will tension the wire electrode again, which is not only cumbersome, but also inefficient. If the wire electrode relaxation is not detected in time, it will seriously affect the quality of the machined feature surface

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