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A Machine Vision Positioning Method for Surface Mount Components

A surface mount component and machine vision technology, applied in the electrical field, can solve problems such as errors and lack of precision, and achieve the effects of high precision, wide application, and avoidance of dependencies

Active Publication Date: 2017-06-13
SHANGHAI RO INTELLIGENT SYST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] The object of the present invention is to provide a machine vision positioning method for surface mount components. The machine vision positioning method for surface mount components needs to solve the existing accuracy of the visual positioning technology for obtaining positions through template image analysis in the prior art. Technical issues with missing and inaccurate

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  • A Machine Vision Positioning Method for Surface Mount Components

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Embodiment 1

[0020] A machine vision positioning method for surface mount components of the present invention includes a process of using a camera to collect and analyze images of surface mount components, wherein, in the process of using a camera to collect and analyze images of surface mount components , a pallet platform 1 that can translate and rotate in the horizontal direction is set, a camera 2 is fixedly arranged above the pallet platform 1, and an image is set between the camera 2 and a computer (not shown in the figure) In the data transmission channel, a calibration step is first performed, and then a positioning step of the workpiece 3 to be processed is performed. In the calibration step, a circular feature point is made on the pallet platform 1 and placed at the center of the field of view of the camera 2 , and then translate the pallet platform 1 in the X direction and the Y direction respectively, use the camera 2 to collect images of circular feature points in more than two...

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Abstract

A machine vision positioning method for surface mount components, including the process of using a camera to collect images of surface mount components, wherein a pallet platform that can translate and rotate in the horizontal direction is set, a camera is set above the pallet platform, and the camera An image data transmission channel is set up between the computer and the computer. First, a calibration step is performed, and then a positioning step of the workpiece to be processed is performed. Use the camera to take images, collect a series of data, and obtain a coordinate system composed of the axis coordinates of the platform and the pixel positions of the visual image, then measure the offset and perform calibration, and then send the photos to the computer, and use the visual matching algorithm in the image Find out the specific position of the feature point in the image, and expand the measurement base by an order of magnitude by sampling two points at a certain distance on the workpiece, so that the error of the image is almost negligible, and avoids the shape and vision of the feature point Algorithm dependence, wider applicability and higher precision.

Description

[0001] Technical field: [0002] The invention relates to the electrical field, in particular to the surface mounting technology of electronic components, in particular to a machine vision positioning method for surface mounting components. [0003] Background technique: [0004] In the surface mount technology industry, due to the high precision of the products and the complex and changeable workpiece conditions, it is impossible to produce accurately and at high speed with traditional positioning methods. In the prior art, the visual positioning method is used to improve the positioning efficiency of surface mount components on the processing tray platform. However, the existing visual positioning technology obtains the position through the analysis of the template image, specifically, a vector graphic with a certain degree of recognition on the target workpiece is used to find out its angle and position through visual calculation. This method is not accurate enough, especia...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01B11/00
Inventor 王德民曹新杨希李继周潘小弟
Owner SHANGHAI RO INTELLIGENT SYST
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