Automatic generation method for PCB printing drawing

Abstract

The invention discloses a PCB printing drawing automatic generation method comprising the following steps that S1, an upper computer is started, and a PCB material number list stored in a database isautomatically read; S2, a PCB material number to be printed is selected, and the upper computer downloads a network disk file corresponding to the PCB material number to a local disk to serve as a to-be-processed printing file; S3, the information of the to-be-processed printing files is read through interaction between a CAM system and the local disk, error information is analyzed and filtered, the to-be-processed printing files with the error information are non-printable files, and the to-be-processed printing files without the error information are printable files; S4, the CAM system readsthe printable file, obtains a layer file corresponding to each core board layer of the PCB, and selects a layer file needing to be printed; S5, the CAM system reads the size of the layer file needingto be printed, and the size of printed paper is matched with the size of the layer file; and S6, typesetting is carried out, and a printed PDF file is generated. According to the method, the PDF fileneeding to be printed can be timely and quickly outputted, labor cost is reduced, and efficiency is improved.

Description

technical field [0001] The invention relates to the field of PCB boards, in particular to a method for automatically generating PCB printing drawings. Background technique [0002] In the process of producing PCB boards, each PCB manufacturer usually prints out the graphic files of the drilling layer, circuit layer, solder mask layer, character layer and shape layer of the customer's original manuscript using transparent film, which is different from the PCB produced by the production line. Graphically compare the boards, so that it can be found in time whether the PCB manufacturer has made an error when processing the customer's PCB file. If there is an error, it can be checked and solved in time to avoid the scrapping of a large number of abnormal quality boards, improve the quality of the PCB board, and reduce production. cost. [0003] At present, the drawing of the original film needs to be manually typesetting first, and the relatively expensive film is used on the ph...

AI Technical Summary

Problems solved by technology

[0004] In order to solve the problems of long time and low efficiency in the arrangement of existing PCB printing files, the present invention provides a method for automatically generating PCB printing drawings, which can generate files that need to be printed

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