A kind of processing equipment and preparation method of miniature special-shaped spring

Abstract

The invention relates to a processing equipment and a preparation method for miniature special-shaped springs. The beneficial effects obtained: 1. All winding processes are completed in vacuum, avoiding the oxidation of tungsten-rhenium alloy at high temperature; 2. The spring wire is straightened at a certain temperature, so that the spring wire remains straight before winding ;3. Control the pulling force of the spring wire through the torque limiter to ensure the winding effect; 4. Use the heating device to further heat-treat the spring wire to improve the performance of the spring after winding. 5. After the spring winding is completed, the spring is fixed by the setting device to improve the stability of the spring. 6. A new cut-off device is adopted, which will not affect the shape of the spring. 7. A special-shaped spring is processed by using a special-shaped forming block, and a processing equipment for a miniature special-shaped spring is provided.

Description

technical field [0001] The invention relates to a coiling process of a wire, in particular to a process of a miniature special-shaped spring. Background technique [0002] In recent years, with the continuous development and maturity of Micro-Electro-Mechanical Systems (MEMS: Micro-Electro-Mechanical Systems) technology, the application range of micro-systems such as micro-electronic devices and micro-sensors has continued to expand, and has been widely used in civil, medical, military and other fields. . The research on needle-type microelectrodes based on micromachining technology has been developed rapidly. Microelectrode structures mainly include planar microelectrodes, heteroplanar microelectrodes, and microelectrodes that assemble planar microelectrodes into an array shape. These microelectrodes with different structures have their own characteristics. Although the traditional electrodes have many different forms, the electrode needles are all in a single body, such ...

AI Technical Summary

Problems solved by technology

Although the traditional electrodes have many different forms, the electrode needles are all in a single body, such as an implantable multifunctional microneedle array brain electrode disclosed in patent CN201621050204. The implantable brain electrodes used in the primary visual cortex of the mouse brain are all integral electrodes. Once the processing is completed, the electrode wires cannot be adjusted separately.

The adjustable electrode can realize the individual adjustment of each electrode wire through the micro spring, but because the diameter of the electrode wire is small (15 micron-50 micron), the force on the electrode is also small during the implantation process, so it is not suitable for adjustable electrodes. The size, precision and accuracy of the spring of the electrode have very high requirements, and the springs currently on the market cannot meet such requirements

[0003] Moreover, because of its special mechanical properties, micro-shaped springs are also widely used in the field of precision instruments. However, at present, there are no mature micro-shaped springs on the market.

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