A grinding method for a high-precision counter-grinding and brushing machine

Abstract

The invention discloses a plate grinding method for a high-precision counter-grinding and brushing machine, and aims to provide a high-precision grinding and brushing method for a plate-grinding machine that can avoid grinding defects and improve product quality. The present invention comprises the following steps: a, positioning the lower brush roller so that the top of the lower brush roller is tangent to the lower grinding surface, and the lower grinding surface is an initial positioning surface with a fixed height; b, adjusting the upper brush roller so that the processing gap reaches the processing Requirements; c. Put the PCB substrate into the feeding mechanism, and the feeding mechanism sends one end of the PCB substrate into the processing gap. At this time, the upper brush roller and the lower brush roller rotate in the same direction at the same time and grind the PCB substrate in the processing gap ; d. One end of the PCB substrate enters the discharge mechanism after grinding, and the discharge mechanism sends out the processed PCB substrate to complete the grinding process of the PCB substrate. The invention is applied to the technical field of PCB substrate grinding machines.

Description

technical field [0001] The invention relates to a method for grinding a plate, in particular to a method for grinding a plate of a high-precision counter-grinding and brushing machine. Background technique [0002] The brush board machine is a kind of PCB circuit board grinding equipment. The existing technology is that one side is supported, and the other side is used for grinding. There are generally two types of support structures: belt-supported grinding and back pressure roller-supported grinding. The traditional grinding method has disadvantages and cannot meet the requirements of precision grinding, especially the resin removal process, such as Figure 1 to Figure 4 As shown, the specific disadvantages of traditional grinding methods are as follows: [0003] 1. There will be runout deviation of the steel roller, thickness deviation of the conveyor belt, and the equipment produced online, no matter how good the spray effect is, the surface of the steel roller, conveyor...

AI Technical Summary

Problems solved by technology

These factors will lead to many poor grinding, which can even lead to product scrapping, such as common grinding exposed substrates, pit deformation, etc.;

[0004] 2. The surface has copper pillar protrusions or plates with ink plug holes. There are protrusions on both sides. When grinding, the steel roller top is flattened and the substrate is deformed, resulting in local overgrinding or exposed substrate

The high-precision grinding and brushing machine adopts the method of double-face grinding, but it does not use a good grinding method during use, resulting in the equipment not being able to achieve the best performance, and finally making the product unable to meet higher quality requirements

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