Digital CCD-based FPC board edge positioning and processing method

Abstract

The invention relates to the technical field of CCD positioning of laser processing equipment, discloses a digital CCD-based FPC board edge positioning and processing method. The method comprises the following steps: determining a standard board edge target template according to a board edge target in a design file of an FPC and a board edge target of the FPC captured by a CCD; performing automatic positioning and processing by the CCD by reference to the standard board edge target template during positioning. The digital CCD-based FPC board edge positioning and processing method can not only identify circles, crosses and other conventional targets, but also can position the board edges flexibly, such as right angled board edges, rounded board edges, fishhook connection points and other geometric figures on the surface of the FPC, so that the processing precision can automatically adapt to the dimensional change of boards; the method has the advantages of powerful image function, high precision and fast response.

Description

technical field [0001] The invention relates to the technical field of CCD positioning of laser processing equipment, and more specifically relates to a digital CCD-based FPC board edge positioning processing method in plate making and mounting in the electronics industry. Background technique [0002] Laser forming processing with CCD positioning developed earlier abroad. With the PCB manufacturing, the electronic assembly industry has migrated to China. Laser as a high-quality FPC shape processing is slowly being promoted and applied in the industry. For example, the patent numbers are: 201210015907.6 and 201210015868. X's invention patent. [0003] The advantage of the laser cutting machine is that it has higher cutting precision than the traditional mechanical mold, which saves the product development cycle and mold cost. In addition, it has analog CCD positioning and flexible file editing methods. It is favored by industry customers. From the CCD vision system The stru...

AI Technical Summary

Problems solved by technology

However, there is no scientific and perfect solution for cutting with a precision within 50um. This problem is common in the industry and has greatly affected the in-depth development of laser processing applications in PCB and FPC products.

Laser cutting equipment with analog CCD is seriously lagging behind in high-end (within 50um) FPC processing performance. Its structure and function are rigid and have the following defects: 1. The scope of target recognition is limited, and it can only recognize simple shapes such as circles and crosses. Target; 2. The image quality is high, and it is easy to miscatch when the target background changes; 3. The resolution of the positioning processing system is low, and the system accuracy is not enough; 4. The software function interface is closed, and it is difficult to upgrade the positioning function; 5. The positioning function is insufficient , the performance optimization level of the laser processing system is low

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