High-precision machining method of PCB copper deposition hole

Abstract

The invention discloses a high-precision machining method for a PCB copper deposition hole. The high-precision machining method comprises the steps that S1, a mechanical arm is adopted for clamping alimiting plate set and is clamped on a computer gong equipment workbench; S2, a mechanical arm is adopted for clamping the machining reference plate and lowering the machining reference plate to the limiting plate set; S3, the processing reference plate is scanned by adopting a visual sensor arranged on a processing main shaft on the computer gong equipment, and position adjustment and clamping operation are performed on the processing reference plate by matching with a position adjustment mechanism and a clamping fixture; S4, a gong hole position on the processing reference plate is identified through a visual sensor, and then a gong hole is machined through a milling cutter; S5, after the gong hole is machined, a detection probe arranged on the computer milling equipment is used for detecting and judging the machining size of the milling hole; S6, when the machining quality of the gong hole is judged to be qualified, the machining reference plate is detached, then the PCB to be machined is clamped and placed on the limiting plate set, and then the S3 and the S4 are repeated; and S7, after the gong hole in the to-be-processed PCB is processed, the gong hole can be dismounted and placed to a designated place.

Description

【Technical field】 [0001] The present application relates to the technical field of PCB, in particular to a high-precision processing method for sinking copper holes in PCB. 【Background technique】 [0002] PCB, also known as printed circuit board, is a provider of electrical connections for electronic components. According to the number of layers of circuit boards, it can be divided into single-sided boards, double-sided boards, four-layer boards, six-layer boards and other multi-layer boards, and it can also be It is further subdivided into full board PCB, jigsaw PCB and so on. [0003] However, in the existing actual production process, the sinking copper holes processed on the PCB are often prone to unqualified processing quality, such as: size out of tolerance range, abnormal shape, etc. For this reason, it is urgent for those skilled in the art to develop a High-precision processing method of PCB sinking copper hole. 【Content of invention】 [0004] This application a...

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Problems solved by technology

[0003] However, in the existing actual production process, the sinking copper holes processed on the PCB are often prone to unqualified processing quality, such as: size out of tolerance range, abnormal shape, etc. For this reason, it is urgent for those skilled in the art to develop a High-precision processing method of PCB sinking copper hole

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