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Method and apparatus for detecting drilling pin for PC board using multiple alternating light sources

A detection device and detection method technology, applied in the direction of using optical devices, measuring devices, instruments, etc., can solve problems such as slow detection speed, and achieve fast and efficient detection effects

Inactive Publication Date: 2005-11-02
邱博洪
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Problems solved by technology

This is the main cause of known slow detection

Method used

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  • Method and apparatus for detecting drilling pin for PC board using multiple alternating light sources
  • Method and apparatus for detecting drilling pin for PC board using multiple alternating light sources
  • Method and apparatus for detecting drilling pin for PC board using multiple alternating light sources

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Embodiment Construction

[0040] Such as Figure 4 As shown, the present invention provides at least one side light source 700 and a vertical light source 800 that alternately turn on and off at the detection position of the drill needle detection machine.

[0041] The side light source 800 is a light source that provides a horizontal direction, and the height of the drill 10 can be detected by a photoreceptor.

[0042] Vertical light source 700 is to provide the light source of vertical direction, is basically the same as CCD microscope lens 400 (referring to figure 1 ) at the same position, illuminate the top of the drill 10, and provide the lens 400 with an imaging light source. See Figure 5 , the lens acquires the image of the tip edge of the drill. Input this image into the computer, use the software in the computer to analyze the shape of the cutting edge, and judge whether it is a normal drill.

[0043] As mentioned above, in order to obtain a clear image, the CCD microscope lens must first...

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Abstract

The invention discloses multiple light sources detection method and its device with drill needle alteration for PC plate, which is that supplies at least side light sources bright and extinguish by turns and vertical light source; wherein, side light source is used to detect height of drill needles with different position, and vertical light source supplies CCD microscope head to obtain image light source. When side light source bright, vertical light source is hidden, then obtains height of the first drill needle on detection position; then side light source extinguish, vertical light source bright, the CCD microscope head can move vertically to adjust focus and obtain the image of drill needle top blade to transmit to computer for farther analysis. After the detection, when next frill needle waiting to detect is transmitted to detection position, similarly, obtains the height of the second drill needle; by computing the difference in height, according to the difference value, adjusts height of lens to detect quickly.

Description

technical field [0001] The invention mainly relates to a method and a device for detecting alternately several light sources with drill pins for PC boards, in particular to a CCD microscope lens that can quickly focus on the drill pins to take images, so as to greatly improve the detection efficiency. Background technique [0002] Due to the advancement of technology, many electronic products tend to be thin, light, compact and portable. This makes the printed circuit board must also be reduced, or more electronic components can be soldered on the same size PC board. Therefore, the layout on the PC board also tends to be more precise, which will further improve the accuracy of drilling. [0003] The yield rate of PC board drilling is greatly related to whether the edge of the tip of the small drill bit is in good shape, because if the edge of the tip of the drill bit is notched or uneven, it will easily greatly increase the defect rate during the drilling operation. rate a...

Claims

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Application Information

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IPC IPC(8): G01B11/00
Inventor 邱博洪
Owner 邱博洪
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