A method for punching holes in printed circuit boards
A printed circuit board, printed circuit board technology, applied in the direction of printed circuit, printed circuit manufacturing, electrical components, etc., can solve the problems of small controller memory, slow running speed, high labor intensity, etc., to save processing cost and precision. High and economical effect
Active Publication Date: 2021-01-08
四川深北电路科技有限公司
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Problems solved by technology
The disadvantages of this positioning operation method are high labor intensity, low efficiency, poor quality and poor repeatability.
With the improvement of printed circuit board processing requirements, it is required to be able to recognize images such as arcs and special-shaped holes. However, the automatic punching machine for printed circuit boards with a single-chip microcomputer as the controller has a small memory and a slow operating speed, which is difficult to meet its requirements. Require
Method used
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Experimental program
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Embodiment
[0013] The punching method of printed circuit board among the present invention, adopts printed circuit board automatic punching industrial control machine to operate, and this industrial control machine comprises CCD camera, binarization circuit, CPLD logic module, PC104 industrial control machine, X direction driving circuit, Y-direction drive circuit and mechanical platform, among them, the CCD camera is used to obtain the image information of the positioning hole of the circuit board, which is converted into a serial digital signal by binarization circuit processing, sent to the CPLD, and the serial signal is converted into an 8-bit 1-group Parallel signals are stored in the cache and sent to the RAM of the PC104 industrial computer in the form of direct memory access; after the PC104 reads the complete image data and processes the image, it obtains the coordinate signal of the positioning hole of the printed circuit board and transmits it through the serial port The coordi...
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The invention relates to a punching method for a printed circuit board. The method employs an automatic punching industrial personal computer for a printed circuit board for operation. The industrialpersonal computer is composed of a CCD camera, a binarization circuit, a CPLD logic module, a PC104 industrial personal computer, an X-direction driving circuit, a Y-direction driving circuit, and a mechanical platform. The CCD camera is used for acquiring positioning hole image information of a circuit board; the image information is transformed into a serial digital signal by the binarization circuit; the processed signal is sent to the CPLD; the serial signal is transformed into an eight-bit one-group parallel signal; the parallel signal is stored into a cache unit; and the stored signal istransmitted to an RAM of the PC104 industrial personal computer by means of direct memory access. Therefore, the punching effect of the printed circuit board is improved. The method is convenient touse with high efficiency and high precision; the processing cost is lowered; and the economic benefits are high.
Description
technical field [0001] The invention relates to a punching method for a printed circuit board, which belongs to the technical field of printed circuit boards. Background technique [0002] In the manufacturing process of printed circuit boards, punching mainly depends on manual positioning. The disadvantages of this positioning operation method are high labor intensity, low efficiency, poor quality and poor repeatability. With the improvement of printed circuit board processing requirements, it is required to be able to recognize images such as arcs and special-shaped holes. However, the automatic punching machine for printed circuit boards with a single-chip microcomputer as the core of the controller has a small memory and a slow operating speed, which is difficult to meet its requirements. Require. Compared with single-chip microcomputer, industrial computer has the advantages of fast running speed, large RAM capacity, configurable multiple operating systems, and conven...
Claims
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IPC IPC(8): H05K3/00
CPCH05K3/005
Inventor 谭祖兵
Owner 四川深北电路科技有限公司