Gravity-removing positioning clamp for to-be-edge-sealed contactor with L-shaped mounting frame

Abstract

The invention provides a gravity-removing positioning method and a positioning clamp for a contactor with an L-shaped mounting frame. According to the method, the bottom surface of the to-be-edge-sealed contactor with the L-shaped mounting frame is suspended when the to-be-edge-sealed contactor is positioned, and the welding surface formed after a housing is matched with a base is directly positioned, so that the precision of the laser focal length in the welding process is improved. The influence of welding deformation of the mounting frame and the contactor housing on the positioning precision is eliminated, and precise positioning is ensured. The deviation range of the positioning precision is 0.01-0.04 mm, and the positioning precision is improved by more than 10 times.

Description

technical field [0001] The invention relates to an edge-sealing fixture, in particular to a degravity positioning method and a positioning fixture for a contactor with an L-shaped mounting frame. Background technique [0002] With the rapid development of my country's military technology, the overall sealing quality level of military sealed electronic components is getting higher and higher. Since the positioning accuracy of sealing components directly determines the accuracy of laser operation, the precise positioning of laser sealing components put forward higher requirements. Especially some sealing devices with special installation methods, such as contactors with L-shaped mounting brackets, such as figure 1 As shown, the structure of the L-shaped mounting bracket is as follows figure 2 shown. [0003] At present, the installation method of the contactor mounting frame is mainly realized by laser welding technology. The specific method is to first combine the mounting...

AI Technical Summary

Problems solved by technology

If we follow the traditional positioning method relying on gravity, the deformation size and direction of each device's mounting frame will be infinitely magnified under a 170 times microscope during laser edge sealing, resulting in a deviation of the coordinates of each device relative to the zero point of the housing after positioning More than 0.3mm, and the positioning accuracy of laser edge sealing requires a deviation of no more than 0.02mm, otherwise the device’s sealing performance will be unqualified due to the deviation of the laser track, and the traditional gravity positioning method can no longer meet the precise positioning of the contactor in laser welding technology

[0004] The current gravity positioning method is to support the bottom surface of the edge-sealing contactor of the L-shaped mounting frame with a fixture. Due to the influence of the resistance welding deformation of the L-shaped mounting frame, the deviation after positioning and locking is relatively large

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