A threaded hole processing method for pcb board

Abstract

The invention provides a threaded hole processing method for PCB boards, comprising the following steps: drilling: adopting a ball-type drilling machine to perform drilling on the position where a heat dissipation copper block is inlaid on a PCB with copper skin; tapping: adopting The through hole of the PCB board is tapped by a tap with a chip removal groove to obtain a threaded hole for fixing the heat dissipation copper block. The invention provides a threaded hole processing method for a PCB board, which can process threaded holes on a PCB board with a thickness of more than 5 mm and a material made of epoxy resin. The threaded holes of the processed PCB board have high precision, ensuring that the PCB The qualified rate of plate processing. Because the threaded holes can be processed on the PCB, the outer edge of the heat dissipation copper block can be processed with threads correspondingly, so that the heat dissipation copper block can be locked on the PCB board through the thread, so as to avoid loosening or even falling off of the heat dissipation copper block and the PCB board if the connection is not tight And affect the overall heat dissipation of the PCB board.

Description

technical field [0001] The invention relates to the technical field of mechanical processing, in particular to a threaded hole processing method for a PCB board. Background technique [0002] With the rapid development of the electronics industry, the miniaturization and modularization of electronic products has become a major trend in the current development. The degree of integration and density is getting higher and higher. , server power supply products, wireless base stations, etc., along with the miniaturization, the problem of heat dissipation has become an urgent problem to be solved. The traditional heat dissipation solution has disadvantages such as large space occupation and poor heat conduction efficiency, and cannot meet the requirements of miniaturization. At present, the use of copper paste plug holes or copper blocks instead of dense heat dissipation holes is the main way to improve the heat dissipation performance of PCB boards for PCB boards with a thickne...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to solve the problem that in the existing PCB board using plugged copper block for heat dissipation, due to the poor connection between the PCB aperture tolerance and the copper block, the copper block is prone to loosening or even falling off, resulting in poor heat dissipation effect of the PCB board The disadvantage is to provide a threaded hole processing method for the PCB board, which locks the copper block in the threaded hole processed by the PCB board to ensure the tight connection between the copper block and the PCB board

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