A clamping stable stretching aluminum cover plate welding fixture

Abstract

The utility model relates to welding fixture technical field discloses a kind of clamping stable tensile aluminium cover plate welding fixture, including welding platform, the upper end of welding platform is equipped with two up-down reciprocating structure, two reciprocating structures are connected with integral lower pressing plate, the upper end of two integral lower pressing plates is close and is equipped with the sliding through slot of being set as penetration, multiple sliding screws are slidably connected in two sliding through slots, the outer surface of each sliding screw is threadedly connected with two fixed nuts, technical effect is to increase the contact point quantity and contact area with aluminium cover plate, can effectively disperse clamping force, avoid the workpiece sliding caused by local contact, can avoid the traditional integral lower pressing plate and cause the plastic deformation problem, such as depression, wrinkle, at aluminium cover plate wave crest place due to local excessive stress, left and right sliding adjustment function, so that it can adapt to different wavelength.

Description

Technical Field

[0001] This utility model relates to the field of welding fixture technology, specifically a welding fixture for a stable tension aluminum cover plate. Background Technology

[0002] In the fields of automobile manufacturing, new energy battery casings, and home appliances, stretched aluminum cover plates are widely used in the manufacture of key structural components due to their excellent properties such as light weight, high strength, and corrosion resistance. These cover plates usually need to be connected to other components through welding processes, and the stable clamping of the cover plate during the welding process is the core prerequisite for ensuring weld accuracy and avoiding workpiece deformation.

[0003] However, during the forming process of stretched aluminum cover plates, the surface is prone to irregular wavy undulations due to factors such as uneven plastic deformation of the material, mold wear, and fluctuations in stretching rate. Traditional fixtures often use integral pressure plates or a few large pressure plates with fixed positions. Since the position of the pressure plates cannot be adjusted, when facing a wavy surface, they can only contact part of the crest area, while the concave areas are suspended. This results in uneven distribution of clamping points and small contact area. In this case, if the clamping force is increased to ensure clamping stability, the aluminum cover plate at the crest is prone to plastic deformation due to excessive local stress. If the clamping force is reduced, the cover plate will slide during welding due to insufficient friction, causing weld misalignment and seriously affecting the product assembly accuracy and performance. Therefore, we propose a stable clamping fixture for welding stretched aluminum cover plates. Utility Model Content

[0004] This utility model provides the following technical solution: a clamping and stable welding fixture for a stretched aluminum cover plate, including a welding table. The upper end of the welding table is provided with two reciprocating structures. Both reciprocating structures are connected to an integral lower pressure plate. The upper ends of the two integral lower pressure plates that are close to each other are provided with sliding grooves that are arranged in a through manner. Multiple sliding screws are slidably connected in the two sliding grooves. Two fixing nuts are threaded to the outer surface of each sliding screw. A small lower pressure plate is fixedly installed at the bottom end of each sliding screw. The upper end of the integral lower pressure plate is provided with a limiting structure. Two placement plates are fixedly installed at the upper end of the welding table.

[0005] Preferably, each reciprocating structure includes an adjusting screw, which is rotatably mounted on the upper end of the welding table. The integral lower pressure plate is threaded onto the outer surface of the adjusting screw. Multiple limiting rods are fixedly mounted on the upper end of the welding table, and each of the multiple limiting rods penetrates the side wall of the limiting rod.

[0006] Preferably, the limiting structure includes a fixed plate, which is fixedly installed on the upper end of the overall lower pressure plate. A movable screw is threadedly installed on the side end of the fixed plate. One end of the movable screw passes through the side end of the fixed plate and is fitted with a limiting toothed plate through a bearing. A limiting rod is fixedly installed on the side end of the limiting toothed plate. One end of the limiting rod passes through the side wall of the fixed plate. A plurality of limiting gears are provided on one end of the limiting toothed plate. The plurality of limiting gears are respectively fixedly installed on the upper ends of the plurality of sliding screws.

[0007] Preferably, the placement plate has a paraffin cavity inside, and the paraffin cavity contains paraffin wax.

[0008] Preferably, a heat-absorbing sheet is fixedly installed at the bottom of the inner side of the placement plate, and the cross-sectional shape and size of the heat-absorbing sheet are adapted to the internal cross-sectional shape and size of the placement plate.

[0009] Preferably, a plurality of heat dissipation columns are fixedly installed at the bottom end of the heat-absorbing sheet, and a plurality of heat dissipation grooves are formed on the outer surface of the plurality of heat dissipation columns.

[0010] Preferably, a handle is fixedly installed at one end of the moving screw and the upper end of the adjusting screw, and the outer surface of the handle is provided with anti-slip texture.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] This invention allows each small pressure plate to be precisely aligned with the crest or gentle area of ​​the wavy surface through left-right sliding adjustment of the small pressure plates. This increases the number and area of ​​contact points with the aluminum cover plate, effectively dispersing the clamping force and preventing workpiece slippage due to localized contact. It also avoids the plastic deformation problems such as depressions and wrinkles at the crests of the aluminum cover plate caused by excessive localized force in traditional integral pressure plates. The left-right sliding adjustment function allows it to adapt to different wavelengths. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model;

[0014] Figure 2 This is a schematic diagram of the component structure of this utility model;

[0015] Figure 3 This is a cross-sectional view of the placement plate of this utility model.

[0016] In the diagram: 1. Welding table; 2. Adjusting screw; 3. Overall lower pressure plate; 4. Sliding slot; 5. Sliding screw; 6. Small lower pressure plate; 7. Fixing nut; 8. Limiting rod one; 9. Placement plate; 10. Heat-absorbing fin; 11. Heat dissipation column; 12. Paraffin cavity; 13. Heat dissipation groove; 14. Fixing plate; 15. Moving screw; 16. Limiting rod two; 17. Limiting toothed plate; 18. Limiting gear.

[0017] As shown in the figure, specific structures and devices are marked in the figure to clearly illustrate the structure of the embodiments of this utility model. However, this is only for illustrative purposes and is not intended to limit this utility model to the specific structure, device and environment. According to specific needs, those skilled in the art can adjust or modify these devices and environments, and such adjustments or modifications are still included in the scope of the appended claims. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] like Figures 1-3 As shown, this utility model provides a technical solution: a clamping and stable welding fixture for a stretched aluminum cover plate, including a welding table 1. The upper end of the welding table 1 is provided with two reciprocating structures. Both reciprocating structures are connected to an integral lower pressure plate 3. The upper ends of the two integral lower pressure plates 3 that are close to each other are provided with sliding grooves 4 that are arranged in a through manner. Multiple sliding screws 5 are slidably connected in the two sliding grooves 4. Two fixing nuts 7 are threadedly connected to the outer surface of each sliding screw 5. A small lower pressure plate 6 is fixedly installed at the bottom end of each sliding screw 5. The upper end of the integral lower pressure plate 3 is provided with a limiting structure. Two placement plates 9 are fixedly installed at the upper end of the welding table 1.

[0020] In an optional embodiment: each reciprocating structure includes an adjusting screw 2, which is rotatably mounted on the upper end of the welding table 1. An integral lower pressure plate 3 is threaded onto the outer surface of the adjusting screw 2. A plurality of limiting rods 8 are fixedly mounted on the upper end of the welding table 1, and the plurality of limiting rods 8 all penetrate the side wall of the limiting rods 8.

[0021] It should be noted that rotating the adjusting screw 2 in both directions can move the entire lower pressure plate 3 up and down, so that the bottom end of the entire lower pressure plate 3 is in contact with the upper end of the aluminum cover plate.

[0022] In an optional embodiment: the limiting structure includes a fixed plate 14, which is fixedly installed on the upper end of the overall lower pressure plate 3. A movable screw 15 is threadedly installed on the side end of the fixed plate 14. One end of the movable screw 15 passes through the side end of the fixed plate 14 and is fitted with a limiting toothed plate 17 through a bearing. A limiting rod 16 is fixedly installed on the side end of the limiting toothed plate 17. One end of the limiting rod 16 passes through the side wall of the fixed plate 14. A plurality of limiting gears 18 are provided on one end of the limiting toothed plate 17. The plurality of limiting gears 18 are respectively fixedly installed on the upper ends of a plurality of sliding screws 5.

[0023] It should be noted that before adjusting the position of the sliding screw 5, rotate the moving screw 15 to move the limiting tooth plate 17 to one side and separate it from the limiting gear 18 to adjust the sliding screw 5. After the adjustment is completed, rotate the moving screw 15 in the opposite direction to make the moving screw 15 move in the opposite direction with the limiting tooth plate 17 and engage with the limiting gear 18. This can prevent the sliding screw 5 from moving left or right or rotating during the welding process.

[0024] In an optional embodiment: the interior of the placement plate 9 is provided with a paraffin cavity 12, and the paraffin cavity 12 is provided with paraffin wax.

[0025] It should be noted that the high temperature during welding is transferred to the placement plate 9, and then to the paraffin cavity 12. The paraffin in the paraffin cavity 12 undergoes a phase change from solid to liquid, which can absorb a large amount of heat and prevent the fixture from creeping due to high temperature.

[0026] In an optional embodiment, a heat-absorbing sheet 10 is fixedly installed at the bottom of the inner side of the placement plate 9, and the cross-sectional shape and size of the heat-absorbing sheet 10 are adapted to the internal cross-sectional shape and size of the placement plate 9.

[0027] It should be noted that the large surface area design helps to distribute heat evenly across the entire heat absorber 10. The heat absorber 10 is in direct contact with the heat source and can quickly absorb the heat generated by the paraffin.

[0028] In an optional embodiment: a plurality of heat dissipation columns 11 are fixedly installed at the bottom end of the heat absorption sheet 10, and a plurality of heat dissipation grooves 13 are formed on the outer surface of the plurality of heat dissipation columns 11.

[0029] It should be noted that the heat dissipation column 11 extends from the bottom of the heat absorption plate 10, which significantly increases the heat dissipation surface area and accelerates the dissipation of heat.

[0030] In an optional embodiment, a handle is fixedly installed at one end of the moving screw 15 and the upper end of the adjusting screw 2, and the outer surface of the handle is provided with anti-slip texture.

[0031] It should be noted that it is ergonomic, making it easy to rotate the screw and preventing the handle from slipping when rotating due to its smooth surface.

[0032] In practical use, the working principle of this utility model is as follows:

[0033] During use, place the aluminum cover plate to be welded on the upper end of the placement plate 9. Then, by rotating the adjusting screw 2 in both directions, the overall lower pressure plate 3 can be moved up and down, so that the bottom end of the overall lower pressure plate 3 fits against the upper end of the aluminum cover plate and fixes it. It can also fix the contact area of ​​the wave crest. For the wavy concave area, the sliding screw 5 can be moved up and down, left and right, or rotated to make the bottom end of the small lower pressure plate 6 fit against the concave area, increasing the number of contact points and the contact area with the aluminum cover plate. This can effectively disperse the clamping force and avoid the workpiece sliding due to local contact. It can avoid the plastic deformation problems such as concavity and wrinkles at the wave crest of the aluminum cover plate caused by excessive local force in traditional integral lower pressure plates. After the adjustment is completed, the two fixing nuts 7 can be rotated to prevent the sliding screw 5 from moving up and down during welding. Then, the limiting structure can be used to prevent the sliding screw 5 from sliding left and right or rotating.

[0034] The above are merely preferred embodiments of this utility model. It should be noted that, for those skilled in the art, several improvements and modifications can be made without departing from the principle of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model.

Claims

1. A clamping fixture for stabilizing the welding of a tensile aluminum cover plate, comprising a welding table (1), characterized in that: The upper end of the welding table (1) is provided with two reciprocating structures. Both reciprocating structures are connected to an integral lower pressure plate (3). The upper ends of the two integral lower pressure plates (3) that are close to each other are provided with sliding grooves (4) that are arranged in a through manner. Multiple sliding screws (5) are slidably connected in the two sliding grooves (4). Two fixing nuts (7) are threadedly connected to the outer surface of each sliding screw (5). A small lower pressure plate (6) is fixedly installed at the bottom end of each sliding screw (5). The upper end of the integral lower pressure plate (3) is provided with a limiting structure. Two placement plates (9) are fixedly installed at the upper end of the welding table (1).

2. The clamping and stabilizing welding fixture for tensile aluminum cover plates according to claim 1, characterized in that: Each reciprocating structure includes an adjusting screw (2), which is rotatably mounted on the upper end of the welding table (1). The integral lower pressure plate (3) is threaded onto the outer surface of the adjusting screw (2). Multiple limiting rods (8) are fixedly mounted on the upper end of the welding table (1), and the multiple limiting rods (8) all penetrate the side wall of the limiting rods (8).

3. The clamping and stabilizing welding fixture for a tensile aluminum cover plate according to claim 2, characterized in that: The limiting structure includes a fixed plate (14), which is fixedly installed on the upper end of the overall lower pressure plate (3). A movable screw (15) is threadedly installed on the side end of the fixed plate (14). One end of the movable screw (15) passes through the side end of the fixed plate (14) and is fitted with a limiting toothed plate (17) through a bearing. A limiting rod (16) is fixedly installed on the side end of the limiting toothed plate (17). One end of the limiting rod (16) passes through the side wall of the fixed plate (14). A plurality of limiting gears (18) are provided on one end of the limiting toothed plate (17). The plurality of limiting gears (18) are respectively fixedly installed on the upper end of the plurality of sliding screws (5).

4. The clamping and stabilizing welding fixture for tensile aluminum cover plates according to claim 1, characterized in that: The placement plate (9) has a paraffin cavity (12) inside, and the paraffin cavity (12) contains paraffin wax.

5. The clamping and stabilizing welding fixture for a stretched aluminum cover plate according to claim 1, characterized in that: A heat-absorbing sheet (10) is fixedly installed at the bottom of the inner side of the placement plate (9), and the cross-sectional shape and size of the heat-absorbing sheet (10) are adapted to the internal cross-sectional shape and size of the placement plate (9).

6. The clamping and stabilizing welding fixture for a stretched aluminum cover plate according to claim 5, characterized in that: Multiple heat dissipation columns (11) are fixedly installed at the bottom of the heat-absorbing sheet (10), and multiple heat dissipation grooves (13) are opened on the outer surface of the multiple heat dissipation columns (11).

7. The clamping and stabilizing welding fixture for a tensile aluminum cover plate according to claim 3, characterized in that: A handle is fixedly installed at one end of the moving screw (15) and the upper end of the adjusting screw (2), and the outer surface of the handle is provided with anti-slip texture.

Images