Stainless steel exhaust fume collecting hood welding, bonding and re-welding fixture

Abstract

The invention relates to a stainless steel exhaust fume collecting hood welding, bonding and re-welding fixture which is characterized by comprising a platform, a left-side external pressing block, aright-side external pressing block, a left front external pressing block, a right front external pressing block, a left internal pressing block, a right internal pressing block, a middle internal pressing block and a middle external pressing block. The platform is used for placing a stainless steel exhaust fume collecting hood; the stainless steel exhaust fume collecting hood is provided with a left folding edge, a right folding edge and a front folding edge; a positioning structure is arranged on the platform; the left-side external pressing block is driven by a left outboard drive structure;the right-side external pressing block is driven by a right outboard drive structure; the left front external pressing block is driven by a left front drive structure; the right front external pressing block is driven by a right front drive structure; the left internal pressing block is constrained on the platform, can slide move and right, and is driven by a left inner-side drive structure; theright internal pressing block is constrained on the platform, can slide move and right, and is driven by a right inner-side drive structure; the middle internal pressing block is fixed onto the platform; a locating pin is fixed onto the middle internal pressing block; and the middle external pressing block is arranged in the middle of the front part of the platform and is driven by a middle drivestructure. According to the fixture, the process of welding, bonding and re-welding is completed, so that the fixture cost is reduced, meanwhile, the process is simplified, and the time and the cost are reduced.

Description

technical field [0001] The invention relates to a tooling fixture, in particular to a welding and bonding rewelding fixture for a stainless steel fume collecting hood. Background technique [0002] The stainless steel fume collecting hood is the main part of the range hood. It is made of stainless steel sheet punched, bent and then welded. The stainless steel fume collecting hood has a top surface with a middle opening. The front edge, left edge and right edge of the top surface have upward The extended front flap, left flap and right flap, and the parts where the front flap, left flap and right flap are in contact with each other are fixed together by laser welding, and the front flap is the surface facing the user, on which control buttons are installed, Higher-end range hoods use touch buttons. Due to the structural characteristics of touch buttons, in order to make the stainless steel smoke hood beautiful, a glass panel with decorative strips can be glued on the front fo...

AI Technical Summary

Problems solved by technology

[0003] When welding, special welding fixtures are required. The quality of the welding directly affects the quality of the stainless steel fume collecting hood, because the fume collecting hood is made of stainless steel sheet, and the front fold, left fold and right fold are narrow and long. If the positioning is not good, it is easy to produce welding deformation, which will cause the straightness and flatness of the front fold, left fold and right fold to be unsatisfactory, thus affecting the quality of the stainless steel fume collecting hood

[0004] When bonding, it is necessary to use a special bonding fixture. At present, the simple tooling has the following defects. One is that the size of the bonding is not easy to ensure the accuracy is low, and the positioning of the stainless steel smoke hood and the glass panel is not accurate. The misalignment between the stainless steel fume collecting hood and the glass panel is easy, and the bonding gap between the stainless steel fume collecting hood and the glass panel is uneven; the second is that the surface of the stainless steel fume collecting hood and the glass panel is easily scratched during the bonding process

[0005] Different fixtures are required for welding and bonding, which increases the cost of the fixtures. In addition, after welding on the welding fixture, the workpiece needs to be taken out, and then placed on the bonding fixture for positioning, and the bonding is completed. It takes a long time, and some stainless steel fume collectors The hood is beautiful, and the front edge of the glass panel is provided with a decorative strip welded on the stainless steel smoke collection hood, which makes the stainless steel smoke collection hood be placed in the slot formed by the decorative strip and the front fold of the stainless steel smoke collection hood. When the bonding is completed, the decorative strip and the stainless steel fume collecting hood need to be welded, so a welding fixture needs to be designed. At present, there is no such fixture that can be welded while bonding.

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