Appearance inspection machine for printed circuit board

A printed circuit board, appearance inspection technology, applied in the direction of measuring devices, material analysis through optical means, instruments, etc., can solve the problems of difficult quality control of printed circuit boards, slow detection speed, inadaptability, etc., to improve simplicity And reliability, fast detection speed, and the effect of improving the operation rate

CN101403709AInactive
0 Cites 71 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Estimated Expiration
Not applicable · inactive patent

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
  • Figure 3
    Figure 3
Patent Text Reader

Abstract

The invention provides a testing machine used for testing the appearance of a printing circuit board, comprising a frame which is provided with a transmission mechanism; the front end of the transmission mechanism is provided with an upper plate mechanism; the transmission mechanism is internally provided with two scanning mechanisms; a panel turnover mechanism is arranged between the two scanning mechanisms; the tail part of the transmission mechanism is butt-jointed with a sorting mechanism; and all mechanisms are controlled by control host machines cooperatively. The testing machine adopts a whole-line digital camera photographing technique to detect the defects on the printing circuit such as foreign matter, exposed copper, supplemented oil, scraping, poor gold-plating, character error, non-uniform green oil, non-uniform welding disc, non-uniform depth of channel, residual copper, omitted printing, developing and the like, automatically feeds and sorts the nondefective and waster, improves the simpleness and reliability of the operation, can observe the defects of the board in real-time by adopting a powerful image processing and analysis software system to provide a plurality of image processing and analysis systems, has quick detection speed, high detection efficiency, safe and reliable equipment, simple operation, is convenient and easy to be learned and meets the man-machine interaction.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The invention relates to a printed circuit board inspection device, in particular to a printed circuit board appearance inspection machine. Background technique

[0002] At present, for the final appearance inspection of printed circuit boards, most manufacturers adopt the method of manual visual inspection, but manual inspection has its own defects, so the final quality control of printed circuit boards is quite difficult. The method not only has the problems of missing detection and slow detection speed, but also shows that it is more and more unsuitable as the circuit miniaturization of printed circuit boards advances. In the industry, there is an increasing expectation for a fast, highly discriminative, and highly automated device for visual inspection of printed circuit boards. Contents of the invention

[0003] The technical problem to be solved by the present invention is to provide an appearance inspection machine capable of inspecting the a...

Examples

Embodiment Construction

[0027] In order to facilitate the understanding of those skilled in the art, the present invention will be described in detail below in conjunction with the embodiments and accompanying drawings:

[0028] As shown in Figure 1, the machine disclosed in this embodiment is a printed circuit board appearance inspection machine specially used to check whether the printed circuit is qualified during the production process of the printed circuit board.

[0029] The machine mainly includes a conveying mechanism 2, a loading mechanism 3, a scanning mechanism 4, a turning mechanism 5, a sorting mechanism 6 and a control host for controlling the coordinated operation of each mechanism. Each mechanism is fixed on the frame 1.

[0030] Wherein, the upper plate mechanism 3 is located at the front end of the frame 1, and is used to send the printed circuit board to be inspected to the conveying mechanism. This mechanism comprises the lifting platform 31 that lifts the printed circuit board ...