A new energy automobile door panel processing welding device

Abstract

This utility model belongs to the field of welding, specifically a welding device for processing door panels of new energy vehicles, including a welding table; a positioning component is fixedly connected to the top center of the welding table, and axially symmetrical sliding grooves are opened on both sides of the top surface of the welding table. A U-shaped frame is slidably connected inside the sliding grooves, and a connecting seat is slidably connected to the surface of the U-shaped frame. A welding gun is set on the surface of the connecting seat, and a negative pressure component is fixedly connected to the side of the U-shaped frame; the positioning component includes a U-shaped positioning plate in the top center of the welding table; through the linkage design of the elastic rubber sheet and the telescopic rod of the positioning component, the curved surface adaptive clamping function of the car door panel is realized. Rotating the threaded bolt pushes the fixed plate to contact the door panel surface, and the arc protrusion of the door panel compresses the telescopic rod and the spring. The serrated structure of the elastic rubber sheet increases the friction, solving the problem of uneven force and welding displacement caused by traditional clamping devices, and improving clamping stability.

Description

Technical Field

[0001] This utility model relates to the field of welding, specifically a welding device for processing door panels of new energy vehicles. Background Technology

[0002] The car door panel is an important component of the car body, primarily responsible for the exterior styling and providing the main access to the vehicle. It is typically made of thin steel sheets and shaped through various processes, including welding, which is required during the manufacturing process.

[0003] In the prior art, such as in CN220902356U, an automotive door panel welding device is disclosed. It includes a base, mounting seats are fixedly installed at both ends of the base, lifting plates are movably installed in the mounting seats, a movable seat is movably provided between the two lifting plates, a welding machine is fixedly connected to the movable seat, mounting grooves are fixedly installed at both ends of the base, sliding seats are slidably provided in the mounting grooves, and columns are installed at both ends of the sliding seats. A positioning mechanism is rotatably provided on the columns.

[0004] While the aforementioned patent facilitates the rotation and positioning of the fixed car door panel by rotating a positioning mechanism on the column, thus enabling welding of the car door panel from multiple angles without disassembling the fixed car door panel and achieving high welding efficiency, the curved surface of the car door panel causes uneven force on the door panel during clamping and fixing, which affects the stability of the welding. In addition, the welding process generates fumes, which affect the safety of the working environment. Therefore, in order to address the above problems, a welding device for processing new energy vehicle door panels is proposed. Utility Model Content

[0005] To overcome the shortcomings of existing technologies, the surface of automobile door panels is arc-shaped, which leads to uneven force on the door panel during clamping and fixing, thus affecting the stability of welding. At the same time, welding generates fumes, which affects the safety of the working environment. This utility model proposes a welding device for processing door panels of new energy vehicles.

[0006] The technical solution adopted by this utility model to solve its technical problem is as follows: A welding device for processing door panels of new energy vehicles, comprising a welding table; a positioning component is fixedly connected to the top center of the welding table; symmetrical sliding grooves are formed on both sides of the top surface of the welding table; a U-shaped frame is slidably connected inside the sliding grooves; a connecting seat is slidably connected to the surface of the U-shaped frame; a welding gun is disposed on the surface of the connecting seat; and a negative pressure component is fixedly connected to the side of the U-shaped frame; the positioning component includes a U-shaped positioning plate in the top center of the welding table, with threaded bolts threaded through both sides of the U-shaped positioning plate. One end of the threaded bolt is movably connected to a fixing plate. The surface of the fixing plate has a rectangular array of circular holes. A telescopic rod is installed inside each circular hole. A spring is sleeved on the surface of the telescopic rod. An elastic rubber sheet is installed at one end of the spring. The negative pressure assembly includes an L-shaped support plate on the side of the U-shaped frame. A negative pressure cylinder is installed at one end of the L-shaped support plate. A drive motor is installed at one end of the negative pressure cylinder. The output end of the drive motor passes through the negative pressure cylinder and is fixedly connected to a negative pressure impeller. The other end of the negative pressure cylinder is connected to a conical smoke hood. The top of the negative pressure impeller is connected to a smoke exhaust pipe. A filter cylinder is installed at one end of the smoke exhaust pipe.

[0007] Preferably, a slot is formed on the surface of the filter cartridge, a plug plate is inserted into the slot, an activated carbon filter plate is disposed inside the plug plate, and the opening end of the conical fumigation hood faces the welding point of the welding gun.

[0008] Preferably, a limiting ring is provided on the inner wall of the circular hole of the fixing plate, and the bottom end of the telescopic rod is engaged and fixed with the limiting ring, with the telescopic direction coinciding with the axis of the spring.

[0009] Preferably, the inner wall of the groove is coated with a graphite lubricating layer, and the sliding end of the U-shaped frame is provided with a ball bearing with the diameter of the ball bearing adapted to the width of the groove.

[0010] Preferably, the contact surface of the elastic rubber sheet has a serrated structure, and the tooth height of the serrated structure decreases gradually from the center of the elastic rubber sheet to both ends.

[0011] Preferably, the L-shaped support plate has reinforcing ribs at the bends, the thickness of the reinforcing ribs being 1.5 times the thickness of the L-shaped support plate body, and weight-reducing holes are formed on the surface.

[0012] The advantages of this utility model are:

[0013] 1. This utility model achieves the adaptive clamping function of the curved surface of the car door panel through the linkage design of the elastic rubber sheet and the telescopic rod of the positioning component. The rotating threaded bolt pushes the fixing plate to contact the door panel surface, and the curved protrusion of the door panel compresses the telescopic rod and the spring. The serrated structure of the elastic rubber sheet increases the friction force, which solves the problem of uneven force distribution in traditional clamping devices that leads to welding displacement, and improves clamping stability.

[0014] 2. This utility model utilizes the synergistic effect of the conical fume hood and activated carbon filter plate of the negative pressure component. During welding, the drive motor drives the negative pressure impeller to rotate at high speed, forming a negative pressure airflow inside the negative pressure cylinder. The fumes are drawn in through the conical fume hood and purified by the activated carbon filter plate, solving the problem of welding fumes harming the environment and reducing harmful gas emissions. The quick-release structure of the filter cylinder slot and insert plate allows for direct pull-out of the insert plate when replacing the activated carbon filter plate, eliminating the need for tool disassembly of the filter cylinder and solving the problem of time-consuming maintenance of traditional filter elements, thus improving filter element replacement efficiency. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the U-shaped frame structure of this utility model;

[0018] Figure 3 This is a schematic diagram of the negative pressure component structure of this utility model;

[0019] Figure 4 This is a schematic diagram of the positioning component structure of this utility model.

[0020] In the diagram: 1. Welding table; 2. Positioning assembly; 21. U-shaped positioning plate; 22. Threaded bolt; 23. Fixing plate; 24. Circular hole; 25. Telescopic rod; 26. Spring; 27. Elastic rubber sheet; 3. Slide groove; 4. U-shaped frame; 5. Connecting seat; 6. Welding gun; 7. Negative pressure assembly; 71. L-shaped support plate; 72. Negative pressure cylinder; 73. Drive motor; 74. Negative pressure impeller; 75. Conical fume hood; 76. Exhaust pipe; 77. Filter cylinder; 78. Slot; 79. Insert plate; 710. Activated carbon filter plate. Detailed Implementation

[0021] 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 scope of protection of the present utility model.

[0022] Please see Figures 1-4As shown, a welding device for processing door panels of new energy vehicles includes a welding table 1; a positioning component 2 is fixedly connected to the top center of the welding table 1; axially symmetrical grooves 3 are formed on both sides of the top surface of the welding table 1; a U-shaped frame 4 is slidably connected inside the grooves 3; a connecting seat 5 is slidably connected to the surface of the U-shaped frame 4; a welding gun 6 is set on the surface of the connecting seat 5; a negative pressure component 7 is fixedly connected to the side of the U-shaped frame 4; the positioning component 2 includes a U-shaped positioning plate 21 at the top center of the welding table 1; threaded bolts 22 are threaded through both sides of the U-shaped positioning plate 21; one end of the threaded bolt 22 is movably connected to a fixed plate 23; the surface of the fixed plate 23... A rectangular array has several circular holes 24. A telescopic rod 25 is installed inside the circular holes 24. A spring 26 is sleeved on the surface of the telescopic rod 25. An elastic rubber sheet 27 is installed at one end of the spring 26. The negative pressure component 7 includes an L-shaped support plate 71 on the side of the U-shaped frame 4. A negative pressure cylinder 72 is installed at one end of the L-shaped support plate 71. A drive motor 73 is installed at one end of the negative pressure cylinder 72. The output end of the drive motor 73 passes through the negative pressure cylinder 72 and is fixedly connected to a negative pressure impeller 74. The other end of the negative pressure cylinder 72 is connected to a conical smoke hood 75. The top of the negative pressure impeller 74 is connected to a smoke exhaust pipe 76. A filter cylinder 77 is installed at one end of the smoke exhaust pipe 76.

[0023] During operation, the car door panel is placed inside the U-shaped positioning plate 21. Rotating the threaded bolts 22 on both sides pushes the fixing plate 23 to clamp the door panel. The curved protrusion of the door panel compresses the telescopic rod 25 and the spring 26. The serrated surface of the elastic rubber sheet 27 adaptively fits the door panel. The sliding U-shaped frame 4 adjusts the welding gun 6 to the welding point along the slide groove 3. The drive motor 73 of the negative pressure component 7 is started to drive the negative pressure impeller 74 to generate suction. The conical smoke hood 75 captures the welding fumes, which are then purified by the activated carbon filter plate 710 and discharged. The elastic clamping structure adapts to door panels with different curvatures, significantly improving clamping stability and effectively solving the welding offset problem.

[0024] Furthermore, a slot 78 is opened on the surface of the filter cartridge 77, and an insert plate 79 is inserted into the slot 78. An activated carbon filter plate 710 is installed inside the insert plate 79, and the opening end of the conical smoke hood 75 faces the welding point of the welding gun 6.

[0025] During operation, when the activated carbon filter plate 710 is saturated, the insert plate 79 can be directly pulled out from the slot 78 of the filter cylinder 77 for replacement. The opening end of the conical smoke hood 75 faces the welding point, and the negative pressure impeller 74 rotates at high speed to draw in smoke and dust. The activated carbon filter plate 710 efficiently purifies the flue gas. The plug-in filter plate can be quickly replaced, significantly improving the smoke and dust purification efficiency and greatly optimizing the convenience of maintenance.

[0026] Furthermore, a limiting ring is provided on the inner wall of the circular hole 24 of the fixing plate 23, and the bottom end of the telescopic rod 25 is engaged and fixed with the limiting ring, and the telescopic direction coincides with the axis of the spring 26.

[0027] During operation, the limiting ring inside the circular hole 24 of the fixing plate 23 restricts the travel of the telescopic rod 25. When the spring 26 is compressed, it pushes the elastic rubber sheet 27 to apply pressure evenly. The spring 26 rebounds at the concave part of the curved surface of the door panel to compensate for the clamping gap. The limiting ring ensures that the telescopic rod 25 can extend and retract stably, improves the uniformity of the clamping force distribution, and enhances the protection effect on the door panel surface.

[0028] Furthermore, the inner wall of the slide groove 3 is coated with a graphite lubricating layer, and the sliding end of the U-shaped frame 4 is equipped with a ball bearing, the diameter of which is adapted to the width of the slide groove 3.

[0029] During operation, the sliding end of the U-shaped frame 4 is fitted with a ball bearing, and the graphite lubrication layer in the groove 3 reduces frictional resistance, allowing the U-shaped frame 4 to slide smoothly. The welding gun 6 is precisely positioned, and the ball bearing and graphite lubrication work together to significantly improve the smoothness of the movement of the U-shaped frame 4 and optimize the welding positioning accuracy.

[0030] Furthermore, the contact surface of the elastic rubber sheet 27 has a serrated structure, and the tooth height of the serrated structure decreases gradually from the center of the elastic rubber sheet 27 to both ends.

[0031] During operation, the elastic rubber sheet 27 adopts a gradient decreasing tooth height structure. The central high teeth are embedded in the door panel surface, and the low teeth fit the curved transition area, increasing the contact area. The gradient sawtooth structure improves the clamping friction, significantly enhancing the door panel's resistance to displacement and adapting to the welding requirements of complex curved surfaces.

[0032] Furthermore, reinforcing ribs are provided at the bends of the L-shaped support plate 71. The thickness of the reinforcing ribs is 1.5 times the thickness of the L-shaped support plate 71 body, and weight-reducing holes are opened on the surface.

[0033] During operation, the L-shaped support plate 71 is equipped with a reinforcing rib structure at the bend and weight-reducing holes are opened on the surface. When the negative pressure cylinder 72 is fully loaded, the deformation of the support plate is effectively controlled, the operational stability is enhanced, the reinforcing rib structure significantly improves the bending strength of the L-shaped support plate 71, the vibration amplitude of the equipment is greatly reduced, and the long-term operational reliability of the negative pressure component 7 is improved.

[0034] Working principle: The car door panel is placed in the U-shaped positioning plate 21, and the rotating threaded bolt 22 pushes the fixing plate 23 to clamp the door panel. The curved protrusion of the door panel compresses the telescopic rod 25 and the spring 26, so that the serrated surface of the elastic rubber sheet 27 adapts to fit. The sliding U-shaped frame 4 adjusts the welding gun 6 to the welding point along the slide groove 3 for welding. At the same time, the drive motor 73 drives the negative pressure impeller 74 to rotate at high speed. The conical smoke hood 75 absorbs the welding fumes. The fumes enter the filter cylinder 77 through the smoke exhaust pipe 76 and are purified by the activated carbon filter plate 710 before being discharged. This realizes the integrated operation of door panel self-adaptive clamping, welding and fume purification.

[0035] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, or similar improvements made within the theoretical and principle content of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A welding device for processing door panels of new energy vehicles, characterized in that: The welding table (1) is included; a positioning component (2) is fixedly connected to the top center of the welding table (1); sliding grooves (3) are symmetrically opened on both sides of the top surface of the welding table (1); a U-shaped frame (4) is slidably connected inside the sliding grooves (3); a connecting seat (5) is slidably connected to the surface of the U-shaped frame (4); a welding gun (6) is provided on the surface of the connecting seat (5); and a negative pressure component (7) is fixedly connected to the side of the U-shaped frame (4). The positioning component (2) includes a U-shaped positioning plate (21) at the top center of the welding table (1). The U-shaped positioning plate (21) has threaded bolts (22) on both sides. One end of the threaded bolts (22) is movably connected to a fixing plate (23). The surface of the fixing plate (23) has a rectangular array of several circular holes (24). The circular holes (24) are provided with telescopic rods (25). The surface of the telescopic rods (25) is fitted with springs (26). One end of the springs (26) is provided with an elastic rubber sheet (27). The negative pressure assembly (7) includes an L-shaped support plate (71) on the side of a U-shaped frame (4). A negative pressure cylinder (72) is provided at one end of the L-shaped support plate (71). A drive motor (73) is provided at one end of the negative pressure cylinder (72). The output end of the drive motor (73) passes through the negative pressure cylinder (72) and is fixedly connected to a negative pressure impeller (74). The other end of the negative pressure cylinder (72) is connected to a conical smoke hood (75). The top of the negative pressure impeller (74) is connected to a smoke exhaust pipe (76). A filter cylinder (77) is provided at one end of the smoke exhaust pipe (76).

2. The welding device for processing door panels of new energy vehicles according to claim 1, characterized in that: The filter cartridge (77) has a slot (78) on its surface. A plug plate (79) is inserted into the slot (78). An activated carbon filter plate (710) is installed inside the plug plate (79). The opening end of the conical smoke hood (75) faces the welding point of the welding gun (6).

3. The welding device for processing door panels of new energy vehicles according to claim 1, characterized in that: A limiting ring is provided on the inner wall of the circular hole (24) of the fixing plate (23), and the bottom end of the telescopic rod (25) is engaged and fixed with the limiting ring and the telescopic direction coincides with the axis of the spring (26).

4. The welding device for processing door panels of new energy vehicles according to claim 1, characterized in that: The inner wall of the groove (3) is coated with a graphite lubricating layer, and the sliding end of the U-shaped frame (4) is provided with a ball bearing, the diameter of which is adapted to the width of the groove (3).

5. The welding device for processing door panels of new energy vehicles according to claim 1, characterized in that: The contact surface of the elastic rubber sheet (27) has a serrated structure, and the tooth height of the serrated structure decreases gradually from the center of the elastic rubber sheet (27) to both ends.

6. The welding device for processing door panels of new energy vehicles according to claim 1, characterized in that: The L-shaped support plate (71) is provided with reinforcing ribs at the bends. The thickness of the reinforcing ribs is 1.5 times the thickness of the L-shaped support plate (71) body and weight-reducing holes are opened on the surface.

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