Circuit board fixing device

Abstract

The invention belongs to the technical field of circuit boards, and particularly relates to a circuit board fixing device. The circuit board fixing device comprises a main frame used for supporting a PCB, a clamping block used for clamping and fixing the PCB, a sliding block and a fast-assembling nut. According to the invention, the universalization of fixing devices for PCBs with different specifications and sizes is well realized, the PCB to be coated with conformal coating is quickly fixed, and the preparation time for preparing special fixing devices for different specifications and sizes before the conformal coating of the PCB is coated is reduced. The positioning precision of the initial positioning origin coordinates of the circuit board corresponding to the coating procedure is improved, and standardized operation is facilitated. According to the device, the problems of accumulation and mark leaving of coating on the edge of the circuit board are solved, the appearance quality of the circuit board is effectively improved, and the quality problems that three-proofing paint which is difficult to clean is left after an existing coating device is used for a long time, circuit board positioning is inaccurate and clamping stagnation is caused by accumulation of pollutants such as excessive paint liquid, and accurate coating cannot be achieved are solved.

Description

technical field [0001] The invention belongs to the technical field of circuit boards, and in particular relates to a circuit board fixing device. Background technique [0002] According to the application and environmental requirements of electronic products, three-proof coating technology is widely used in automotive electronics and power systems, industrial control systems, military industries, etc., especially electronic equipment working in the field, airborne, aerospace and sea. Under the conditions of environment, vibration, high dust, salt spray, humidity and high temperature, the circuit board may have corrosion, softening, deformation, mildew and other problems, resulting in circuit board circuit failure. In order to adapt to this kind of environment, an insulating protective conformal coating that is consistent with the shape of the coated object on the assembled and debugged circuit board assembly isolates the area to be protected of the printed circuit board and...

AI Technical Summary

Problems solved by technology

[0006] The technical problem to be solved in the present invention is: how to solve the fast fixation of PCB board conformal paint before spraying; Improve the coating quality of the circuit board and reduce the deposition and marks of the conformal paint on the edge of the circuit board; how to avoid the accumulation and stagnation of the conformal paint caused by the pollution of the conformal paint to the circuit board fixing device, resulting in inaccurate positioning and reducing the Cleaning and maintenance costs for fixtures

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