Door backplate welding structure
A welding structure and door guard plate technology, which is applied in the field of automobile assembly parts, can solve the problems of high welding cost and low efficiency, and achieve the effects of improving welding quality, reliable installation and simple structure
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[0039] As attached Figure 15 As shown, the door guard panel welding structure of this embodiment includes a door guard panel body; the door guard panel body has a plurality of mating plane parts that cooperate with the welding columns, and the mating plane parts are provided with main positioning Holes, auxiliary positioning holes, pre-installation holes and general welding holes. Before ultrasonic welding, welding columns are inserted into the main positioning holes, auxiliary positioning holes, pre-installation holes and general welding holes, and the welding columns include an integrally formed base and a hollow column body located on the base, After plugging, the base is located at the bottom of the mating plane part, and the hollow column body is at the upper part of the mating plane part. Figure 1-3 The general welding position is shown. The distance between the welding column 1 and the general welding hole on the mating plane 2 is 0.5-1 mm. Figure 4-6 ...
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