Locking and fixing device for quickly replacing printed board

Abstract

The invention discloses a locking and fixing device for quickly replacing a printed board, and relates to the technical field of precision machineries. The locking and fixing device comprises a pressing mechanism, a supporting frame and screws, wherein the pressing mechanism comprises a locking handle, an upper sliding limit block, a sliding rail, an end part sliding block, a pressing sliding block, a transition sliding block, a tail end sliding block, a locking and adjusting nut, an elastic pressing piece and an adjusting screw, the sliding rail is fixedly arranged in a groove of the supporting frame, the upper sliding limit block, the end part sliding block, the transition sliding block and the tail end sliding block are positioned in a sliding groove of the sliding rail and can move on the sliding rail, the elastic pressing piece is sleeved on the adjusting screw and is tightly pressed by the locking and adjusting nut, the adjusting screw is arranged in a screw hole at one end of the sliding rail, and the locking handle is hinged at the other end of the sliding rail. The locking and fixing device for quickly replacing the printed board disclosed by the invention has the beneficial effects that the quick replacing for the printed board and the adjustability of a fixed pressing force are realized, the reliability and the maintainability of the printed board are increased, and the service life of the printed board is further prolonged.

Description

Technical field [0001] The invention relates to the technical field of precision machinery, in particular to a locking and fixing device for quick replacement of printed circuit boards. Background technique [0002] Since the printed circuit board locking and fixing method is an important factor in determining the response of the printed circuit board to shock and vibration, the printed circuit board with a poor locking and fixing method is prone to large dynamic load, causing equipment failures and replacing the printed board. Fast and convenient is also the key to whether the equipment maintainability and testability can meet the requirements. This makes the locking and fixing method of the printed board considered at the beginning of the development of the equipment, and the corresponding locking and fixing measures are taken during the design process. The printed board is firmly fixed and quickly replaced. The conventional locking and fixing of the printed board is to insert...

AI Technical Summary

Problems solved by technology

[0003] In order to solve the problems of long replacement time, over-tightening or unreliable locking in the existing locking and fixing methods of printed boards, which will affect the shock and vibration resistance of printed boards and reduce the maintainability, reliability and testability of the equipment problem, the present invention provides a quick replacement device with adjustable locking force for printed boards

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