Anti-reversing tool for projection welding nut of part

Abstract

The utility model relates to a part projection welding nut anti-reverse tooling, the part is a flat plate piece, the flat plate end part of the flat plate piece is provided with a flange, the part projection welding nut anti-reverse tooling comprises a supporting seat, a positioning bottom plate and an anti-reverse pressing plate are arranged on the supporting seat, the anti-reverse pressing plate is positioned above the positioning bottom plate, and a gap for the part to insert is arranged between the anti-reverse pressing plate and the positioning bottom plate. The positioning bottom plate is provided with a flat plate receding groove allowing the flat plate to be inserted therein, the anti-reverse-pressing plate is provided with a flanging receding groove allowing the flanging to be inserted therein, and the supporting base, the positioning bottom plate and the anti-reverse-pressing plate are each provided with a nut welding receding hole. Through the gap between the positioning bottom plate and the anti-reverse pressing plate, by means of the height difference of the step faces at the turnup, the right welding face and the wrong welding face of a part are controlled to be capable of being inserted so as to judge the front and back of the welding face, anti-reverse of the projection welding nut in the welding process is prevented, the problem of waste products caused by reverse welding of the part in production can be prevented, and the production efficiency is improved. The product quality risk is reduced, and the manufacturing and development cost can be reduced.

Description

Technical Field

[0001] The utility model belongs to the field of automobile parts manufacturing, and particularly relates to a tool for preventing reverse movement of projection-welded nuts on parts. Background Art

[0002] Some automotive parts often require welded nuts. For parts without complex shapes, such as the tailgate latch nut plate, the plate is symmetrical except for three raised bumps and flanging at each end, effectively welding two nuts onto a flat surface. However, the orientation of the nuts relative to the raised bumps is a manufacturing requirement, and since the bumps are small, it's easy to weld the nuts upside down during production, resulting in welding errors and scrap. Summary of the Invention

[0003] The utility model aims to provide a tool for preventing reverse welding of projection welding nuts of parts, so as to prevent the problem of waste products caused by reverse welding of parts in production.

[0004] The technical solution provided by the utility model is: a tool for preventing the reverse welding of nuts on parts, wherein the part is a flat plate, and the flat plate end of the flat plate has a flange, including a support seat, a positioning base plate and an anti-reverse pressure plate are provided on the support seat, the anti-reverse pressure plate is located above the positioning base plate, and a gap is provided between the anti-reverse pressure plate and the positioning base plate for inserting parts, the positioning base plate is provided with a flat plate clearance groove for inserting the flat plate, the anti-reverse pressure plate is provided with a flange clearance groove for inserting the flange, and the support seat, the positioning base plate and the anti-reverse pressure plate are all provided with nut welding clearance holes.

[0005] The anti-back pressure plate is fixed on the base by bolts.

[0006] The utility model determines the front and back of the connecting welding surface by positioning the gap between the bottom plate and the anti-reverse pressure plate and utilizing the height difference of the step surface at the flange to control the correct welding surface of the part to be inserted and the incorrect welding surface to be unable to be inserted, thereby preventing the projection welding nut from being reversed during the welding process, thereby preventing the problem of waste products caused by reverse welding of parts in production, reducing product quality risks, and reducing manufacturing and development costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0007] Figure 1 It is a structural diagram of the utility model;

[0008] Figure 2 It is a schematic diagram of the structure of the parts of the utility model example;

[0009] Figure 3 for Figure 2 Top view of . DETAILED DESCRIPTION

[0010] See also Figures 1 to 3The present invention provides a tool for preventing reverse welding of nuts on parts. The part is a flat plate. The flat plate 1 of the flat plate has flanges 2 at both ends. The flat plate 1 is provided with three convex buds 10. The present invention includes a support base 5. The support base 5 is provided with a positioning base plate 4 and an anti-reverse pressure plate 6. The anti-reverse pressure plate 6 is located above the positioning base plate 4. A gap 7 for inserting parts is provided between the anti-reverse pressure plate 6 and the positioning base plate 4. The positioning base plate 4 is provided with a flat plate clearance groove for inserting the flat plate. Both ends of the anti-reverse pressure plate are provided with flange clearance grooves for inserting the flanges. The support base 5, the positioning base plate 4 and the anti-reverse pressure plate 6 are all provided with clearance holes 8 for welding the nuts 3.

[0011] The anti-back pressure plate 6 is fixed to the base 5 by bolts 9 .

[0012] This utility model prevents part backlash by using an anti-backlash fixture at a height of 1mm at the part flange. With a 1.7mm gap between the positioning plate and the anti-backlash pressure plate, and a part material thickness of 1.4mm, the part can be placed normally (sideways into the fixture) against the 1mm step surface of the positioning plate (leaving 0.3mm of clearance for easy removal) for nut welding. If the incorrect welding surface is selected, the part flange height is 2.4mm, the gap between the positioning plate and the anti-backlash pressure plate is 1.7mm, and the part flange height exceeds 0.7mm, the part cannot be placed (sideways into the fixture) for nut welding. This utility model facilitates production by effectively preventing parts from being welded backwards and allows for quick operation. This lightweight and fast projection welding anti-backlash fixture solves the problem of preventing backlash in projection welding of nuts on parts.

Claims

1. A tool for preventing reverse rotation of projection welding nuts, wherein the part is a flat plate with a flanged end, characterized in that: It includes a support seat, which is provided with a positioning base plate and an anti-back pressure plate. The anti-back pressure plate is located above the positioning base plate. There is a gap between the anti-back pressure plate and the positioning base plate for inserting parts. The positioning base plate is provided with a flat plate makeshift groove for inserting a flat plate. The anti-back pressure plate is provided with a flange makeshift groove for inserting a flange. The support seat, the positioning base plate and the anti-back pressure plate are all provided with nut welding makeshift holes.

2. The anti-reverse tool for projection welding nuts according to claim 1, characterized in that: The anti-back pressure plate is fixed on the base by bolts.

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