A method for detecting the drilling accuracy of a pcb mechanical drilling machine

Abstract

The invention provides a method for detecting the drilling precision of a PCB mechanical drilling machine. The method includes the following steps that (a) a PCB, a cover plate and a base plate are prepared, and pin holes are drilled in the PCB, the cover plate and the base plate respectively; (b) the cover plate, the PCB and the base plate are sequentially overlapped to form an overlapped body, the pin holes corresponding to the cover plate, the PCB and the base plate respectively are coaxially placed, a pin is arranged on the overlapped body and penetrates through the pin holes, then the pin is clamped through a clamping device, and the overlapped body is placed on a working table of the PCB mechanical drilling machine; (c) machining parameters are input to the PCB mechanical drilling machine, and drilling is carried out; (d) the drilled overlapped body is taken down, and the cover plate, the PCB and the base plate of the overlapped body are split; (e) residues left on the PCB in the drilling process are cleared away; (f) deviation analysis is conducted on the drill hole in the PCB through an image detection device; (g) the deviation value obtained through the image detection device is judged. The method for detecting the drilling precision of the PCB mechanical drilling machine is simple and convenient, and the detection result is accurate.

Description

technical field [0001] The invention relates to the field of PCB mechanical drilling machines, in particular to a method for detecting the drilling accuracy of PCB mechanical drilling machines. Background technique [0002] At present, there is no standard method for the drilling accuracy of PCB mechanical drilling machines. Among them, some enterprises adopt the detection method of slot drilling copper plate, specifically, use the copper plate as the detection plate, and then drill holes on the copper plate through the slot drill, and then check the accuracy of the hole position drilled on the copper plate, so as to judge The drilling accuracy of the drilling rig. Due to the uniform texture of the copper plate, it can avoid the situation of uneven force when the drill bit drills composite materials, while the slot drill core has a thick blade and short blade, and its rigidity and concentricity are better than ordinary drill bits, which can effectively prevent the drill bit...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to overcome the defects of the prior art, and provide a method for detecting the drilling accuracy of PCB mechanical drilling machines, so as to solve the problems of low detection accuracy and high detection cost of current PCB mechanical drilling machines. question

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