Method for positioning and correcting edge of PCB machining path
A processing path, PCB board technology, applied in the processing of insulating substrates/layers, printed circuits, printed circuit manufacturing, etc., can solve the problems of poor cutting accuracy, low work efficiency, time-consuming and labor-intensive, etc. The effect of high work efficiency
Active Publication Date: 2019-11-08
浙江中茂科技有限公司
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Problems solved by technology
[0004] The purpose of the present invention is to overcome the shortcoming of prior art, provide a kind of PCB board processing path edge-finding positioning correction method, solve the technical problems of time-consuming and laborious, poor cutting accuracy, low work efficiency existing in prior art
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[0026] The present invention will be described in further detail below in conjunction with the accompanying drawings and embodiments.
[0027] Such as Figure 1 to Figure 4 As shown, a PCB board processing path edge-finding positioning correction method is planned to have a plurality of small circuit boards on a large printed circuit board, and intermittent cutting grooves are provided between each small circuit board. Using a milling cutter to cut a plurality of small circuit boards from a large printed circuit board along the cutting groove, including the following steps:
[0028] 1) Use industrial cameras for visual acquisition and analysis;
[0029] 2) Use the contour detection method to find the adjacent left cutting groove 1 and right cutting groove 2;
[0030] Quoting the algorithm in [Suzuki85] contour detection method. CVGIP 301, pp32-46 (1985) paper, to find the left cutting groove 1 and the right cutting groove 2, the algorithm is as follows:
[0031]
[0032]...
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The invention relates to a method for positioning and correcting the edge of a PCB machining path, and belongs to the technical field of a PCB machining method. The method solves the low time and labor efficiency, the poor cutting accuracy and the low work efficiency in the prior art. The method for positioning and correcting the edge of the PCB machining path comprises finding out the straight line equations of the upper, lower and middle straight lines of an adjacent cutting groove by a contour detection method; then determining a cutting start point and a cutting end point along the upper,lower and middle straight lines; comparing a machining path in a conventional machining process and a milling cutter central machining path of the cutting start point and the cutting end point in thepresent invention, and correcting the milling cutter central machining path of the cutting start point and the cutting end point so as to set a new machining path. Compared with the prior art, the method has the advantages of good convenience, high efficiency, high cutting accuracy and the like.
Description
technical field [0001] The invention belongs to the technical field of PCB board processing methods, in particular to a PCB board processing path edge-finding positioning correction method. Background technique [0002] The PCB printed circuit board must be cut and divided, that is, a large printed circuit board is planned to have a plurality of small circuit boards, and intermittent cutting is provided between each small circuit board. slots, and the function of the board splitter is to use a milling cutter to cut a plurality of small pieces of circuit boards from a large printed circuit board along these cutting slots. [0003] The processing procedures of PCB printed circuit boards produced by different factories are not the same, so after processing a batch of PCB printed circuit boards, the calibration and positioning work of the next batch of PCB printed circuit boards must be performed again. The traditional calibration and positioning work is to set the coordinates ...
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IPC IPC(8): H05K3/00
CPCH05K3/0052
Inventor 董文荣
Owner 浙江中茂科技有限公司