Production method of micro spring

Abstract

The invention relates to the technical field of winding processing of wires, and discloses a production method of a micro spring. The micro spring is produced by using a processing device, and the processing device comprises a feeding mechanism, a material guiding mechanism and a winding mechanism; and the production method comprises the following steps that, S1, a spring wire coil is placed on the feeding mechanism; S2, a spring wire of the spring wire coil is guided to the material guiding mechanism; S3, the winding mechanism is used for receiving the spring wire guided by the material guiding mechanism; and when the end part of the spring wire is tightly pressed, the spring wire is wound to form a spring; and in the winding process, the material guiding mechanism carries the spring wireto move in the axial direction of the spring; and S4, the spring wire is cut off, and the spring is taken out. According to the production method of the micro spring, the micro spring with the size,precision and accuracy conforming to the high requirements of a needle-type micro-electrode can be processed.

Description

technical field [0001] The invention relates to the technical field of winding processing of wire rods, in particular to a production method of a miniature 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 i...

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

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