Aluminum automobile bumper mounting plate welding tool

Abstract

An aluminum automobile bumper mounting plate welding tool relates to the technical field of automobile part rolling manufacturing and comprises a bottom plate, a first air pressure clamp, a second air pressure clamp, a first positioning pin, a second positioning pin, a left-right adjusting gasket, an inner-outer adjusting gasket, a connecting structural part, a first cushion block, a second cushion block and a third cushion block. The supporting plate below the mounting plate is designed into the split supporting cushion block, and the position of the supporting cushion block is determined according to the position where the mounting plate is prone to deformation in the welding process. The number of the supporting cushion blocks is multiple, and each cushion block can be adjusted in the X direction, the Y direction and the Z direction through gaskets. The welding deformation adjusting device can be adjusted in a targeted mode according to different deformation areas after welding, operation is easy, and the welding deformation problem of the aluminum mounting plate is solved.

Description

Technical Field

[0001] This utility model relates to the field of automobile bumper manufacturing technology, and in particular to a welding fixture for aluminum automobile bumper mounting plates. Background Technology

[0002] Car bumpers mainly consist of a crossbeam, energy-absorbing boxes, and mounting plates. Energy-absorbing boxes are located on both sides of the crossbeam, and mounting plates are welded to these boxes to connect them to the car's longitudinal beams. In the manufacturing process of aluminum car bumpers, the original mounting plate welding fixture was a one-piece structure. That is, the support plate that fixes the mounting plate during welding is a single template. The mounting plate is placed on the support plate, clamped using fixtures, and then the energy-absorbing boxes are welded to the mounting plate. Because the mounting plate is made of aluminum and has a large area, severe local deformation occurs during welding. The existing one-piece fixture cannot meet the requirements for localized adjustments and control of localized deformation, frequently resulting in manufacturing defects such as localized warping in the products.

[0003] To overcome the shortcomings of the existing technical solutions, the industry urgently needs a welding fixture for aluminum automotive bumper mounting plates. Utility Model Content

[0004] The purpose of this invention is to overcome the shortcomings of the existing technology and provide a welding fixture that can control welding deformation during the welding of aluminum car bumper mounting plates.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A welding fixture for an aluminum car bumper mounting plate includes a base plate, a pneumatic clamp 1, a pneumatic clamp 2, a positioning pin 1, a positioning pin 2, left and right adjustment shims, inner and outer adjustment shims, a connecting structure, and pads 1, 2, and 3. The pneumatic clamp 1, pneumatic clamp 2, positioning pin 1, positioning pin 2, connecting structure, pads 1, 2, and 3 are all mounted on the base plate. The mounting plate is pressed tightly using the pneumatic clamp 1 and pneumatic clamp 2. The pads 1, 2, and 3 are all located below the mounting plate.

[0007] The aforementioned aluminum car bumper mounting plate welding fixture has countersunk holes on pad 1, pad 2, and pad 3, which are fastened to the base plate using countersunk bolts.

[0008] The aforementioned aluminum car bumper mounting plate welding fixture uses left and right adjusting shims to adjust the left and right positions of shims two and three, and uses inward and outward adjusting shims to adjust the inward and outward positions of shims two and three. Shims are used between the lower surfaces of shims one, two, and three and the upper surface of the base plate for vertical adjustment.

[0009] This utility model has the following advantages:

[0010] This invention designs the support plate beneath the mounting plate as a split support block. The position of the support block is determined based on the areas of the mounting plate prone to deformation during welding. Multiple support blocks are provided, and each block can be adjusted in the X, Y, and Z directions using shims. This invention allows for targeted adjustments to different deformation areas after welding, is simple to operate, and solves the problem of welding deformation in aluminum mounting plates. Attached Figure Description

[0011] Figure 1 This is a three-dimensional structural diagram of the base plate of this utility model (not shown);

[0012] Figure 2 This is a top view of the present invention;

[0013] Figure 3 This is a top view of the present invention, without showing the mounting plate;

[0014] The labels in the diagram represent: 1. Mounting plate, 2. Base plate, 3. Pneumatic clamp one, 4. Pneumatic clamp two, 5. Positioning pin one, 6. Positioning pin two, 7. Left and right adjusting shims, 8. Inner and outer adjusting shims, 9. Connecting structural components, 10. Pad one, 11. Pad two, 12. Pad three. Detailed Implementation

[0015] This utility model discloses a welding fixture for an aluminum automotive bumper mounting plate, such as... Figure 1 , Figure 2 , Figure 3 As shown, positioning pin 1 5 and positioning pin 2 6 are fixed on the base plate 2 and used for filling and positioning during the production process of mounting plate 1. The number and position of the positioning pins can be adjusted and determined according to the structural shape of the mounting plate of different models. Pneumatic clamp 1 3 and pneumatic clamp 2 4 are installed on the base plate 2 and used for pressing and fixing mounting plate 1. The number and position are adjusted according to the structural shape of the mounting plate of different models. Pad 1 10, pad 2 11 and pad 3 12 are all provided with countersunk holes and are fixed to the base plate 1 using countersunk bolts. Connecting structural component 9 is used for fixing and supporting the base plate 2 to external equipment.

[0016] Shims are used to adjust the height of shims 10, 11, and 12 between them and the base plate 2. Limiting blocks are provided on the sides of shims 10 and 11. Left and right adjusting shims 7 and inside and outside adjusting shims 8 are used between shims 10, 11 and the limiting blocks to adjust the position of shims 10 and 11 respectively.

[0017] The working principle of this utility model is as follows: When welding the mounting plate and the energy-absorbing box together, the mounting plate 1 is first loaded onto the tooling of this utility model. Positioning pins 5 and 6 are used for positioning. The cylinders of pneumatic clamps 3 and 4 are activated to press and fix the mounting plate 1, and then welding is performed. During the process, the positions of pads 10, 11, and 12 in the X, Y, and Z directions are adjusted according to the easily deformable positions of the mounting plate 1. The number of pads 10, 11, and 12 is determined according to the actual situation of different vehicle models.

Claims

1. A welding fixture for an aluminum automotive bumper mounting plate, characterized in that: The system includes a base plate (2), a pneumatic clamp (3), a pneumatic clamp (4), a positioning pin (5), a positioning pin (6), left and right adjustment shims (7), inside and outside adjustment shims (8), a connecting structure (9), a pad (10), a pad (11), and a pad (12). The pneumatic clamp (3), the pneumatic clamp (4), the positioning pin (5), the positioning pin (6), the connecting structure (9), the pad (10), the pad (11), and the pad (12) are all installed on the base plate (2). The mounting plate (1) is pressed tightly using the pneumatic clamp (3) and the pneumatic clamp (4). The pad (10), the pad (11), and the pad (12) are all located below the mounting plate (1).

2. The welding fixture for an aluminum automotive bumper mounting plate according to claim 1, characterized in that: The pads 1 (10), 2 (11), and 3 (12) are all provided with countersunk holes. The pads 1 (10), 2 (11), and 3 (12) are fastened to the base plate (2) using countersunk bolts.

3. The welding fixture for an aluminum automotive bumper mounting plate according to claim 1, characterized in that: Use left and right adjustment shims (7) to adjust the left and right positions of shims 2 (11) and 3 (12), use inside and outside adjustment shims (8) to adjust the inside and outside positions of shims 2 (11) and 3 (12), and use shims to adjust the up and down direction between the lower surface of shims 1 (10), 2 (11) and 3 (12) and the upper surface of the base plate (2).

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