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Three-axis positioning device and method based on machine vision

A machine vision, axis positioning technology, applied in PCB positioning, electrical components, printed circuit manufacturing and other directions in the processing process, can solve the problems of small line spacing, high density of electronic circuits, PCB and exposure film deformation, etc., to improve accuracy and speed, the effect of solving the positioning error

Pending Publication Date: 2017-08-18
GUANGZHOU QIEZHI INTELLIGENT TECH CO LTD
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  • Summary
  • Abstract
  • Description
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  • Application Information

AI Technical Summary

Problems solved by technology

For example, in the PCB industry, the exposure alignment process is controlled by high-end PCB boards such as HDI boards and multi-layer flexible boards. The electronic circuit density is high, the circuit spacing is small, and both the PCB and the exposure film will be deformed, plus the random error between the push rod mechanism. , causing great hindrance to the precision control of vertical and horizontal alignment

Method used

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  • Three-axis positioning device and method based on machine vision
  • Three-axis positioning device and method based on machine vision
  • Three-axis positioning device and method based on machine vision

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Embodiment Construction

[0025] Below, in conjunction with accompanying drawing and specific embodiment, the present invention is described further:

[0026] Such as figure 1 As shown, the present invention provides a kind of three-axis positioning device based on machine vision, comprises control platform, CCD image sensor, FPGA circuit, servo driver and I / O interface circuit, and CCD image sensor and FPGA circuit are all connected with control platform, servo The driver and the I / O interface circuit are all connected to the FPGA circuit; the CCD image sensor is used to obtain the position image signal and send it to the control platform, so that the control platform sends the control signal to the FPGA circuit according to the position image signal, and the FPGA circuit is used for Drive the external drive motor to work through the I / O interface circuit according to the control signal.

[0027] The FPGA circuit receives the control signal of the control platform, and according to the control signal...

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PUM

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Abstract

The invention discloses a three-axis positioning device and method based on machine vision, and the method comprises the steps: carrying out the positioning of a PCB and a film; building a machine platform coordinate system, respectively taking a first alignment element center and a second alignment element center as origins of coordinates, and building a first coordinate system and a second coordinate system; obtaining an alignment inclined angle, and solving the difference of the first and second alignment element centers in the machine platform coordinate system in the X-axis direction as a first difference value and the difference of the first and second alignment element centers in the machine platform coordinate system in the Y-axis direction as a second difference value according to the position coordinates of the first and second alignment element centers in the machine platform coordinate system; judging whether the alignment inclined angle, the first difference value and the second difference value are within a preset error range or not: carrying out no adjustment if the alignment inclined angle, the first difference value and the second difference value are within the preset error range, or adjusting the position. According to the invention, the method achieves the positioning control based on CCD machine vision, can quickly and accurately obtain the position information, solve a problem of positioning errors in a production and manufacturing process of the PCB, and improve the alignment precision and speed.

Description

technical field [0001] The invention relates to the technical field of positioning, in particular to a three-axis positioning device and method based on machine vision. Background technique [0002] In industries with a high degree of automation, such as printed circuit boards, numerical control processing, laser processing, etc., most of them have applied automated production lines, and high-precision and efficient positioning and timing control requirements are required for key stations or processes on the production line. . For example, in the PCB industry, the exposure alignment process is controlled by high-end PCB boards such as HDI boards and multi-layer flexible boards. The electronic circuit density is high, the circuit spacing is small, and both the PCB and the exposure film will be deformed, plus the random error between the push rod mechanism. , has caused great obstacles to the precision control of vertical and horizontal alignment. Contents of the invention ...

Claims

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Application Information

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IPC IPC(8): H05K3/00
CPCH05K3/00H05K2203/15
Inventor 刘哲黄博才刘少君谢志文黎振升温玉娟
Owner GUANGZHOU QIEZHI INTELLIGENT TECH CO LTD
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