New energy aluminum alloy bumper welding tool

Abstract

The application discloses a new energy aluminum alloy bumper welding tool, and belongs to the technical field of welding equipment. The new energy aluminum alloy bumper welding tool comprises a supporting frame, a workbench is fixedly connected to the top of the supporting frame, movable plates are movably connected to the inner sides of the left and right sides of the workbench, a bidirectional screw rod is movably connected to the bottom of the workbench, and the outer side of the bidirectional screw rod is movably connected to the inner side of the movable plate. The application is started by a motor, and is matched with the movable plate, a rack, a rotating shaft I, a gear, a movable block, a spring II, a rotating shaft II and a V-shaped supporting frame, so that the movable block is rotated to drive the inner side of the fixed pressing plate into contact with the top surface of the bumper, each fixed pressing plate is automatically rotated to adjust the angle according to the surface arc of the bumper, the fixed pressing plate is always attached to the top surface of the bumper, and thus the process of automatically clamping and fixing the bumper is completed, the working efficiency of the equipment is improved, the space occupation of the space above the equipment is reduced, and the subsequent welding process is more smooth.

Description

Technical Field

[0001] This invention belongs to the field of welding equipment technology, specifically relating to a welding fixture for a new energy aluminum alloy bumper. Background Technology

[0002] Welding manufacturing equipment refers to the general term for various mechanical, electrical, and supporting devices used to achieve the connection of workpieces, and is the basic tool for welding production. Its core functions are to provide the energy required for welding (such as electric arc, laser, and ultrasonic waves), control welding process parameters (such as current, voltage, and temperature), and assist in completing the welding action. In the existing technology, the welding process of automobile bumpers involves welding energy-absorbing boxes, sleeves, sleeve reinforcement plates, brackets, lower leg mounting brackets, and lower leg support beams, etc., onto the bumper before it can be assembled with the whole vehicle.

[0003] Chinese invention patent CN121132165A discloses a fire extinguisher box, including a working platform, adjusting baffles, positioning rollers, positioning clamps, and edge positioning components. The adjusting baffles are fixed to the upper surface of the working platform, and multiple grooves are formed on their outer surface. Each end of the positioning roller has a slider, and the positioning roller is slidably connected to the groove between two adjusting baffles via the sliders. The positioning clamp is located on the side of the two adjusting baffles away from the positioning rollers and is slidably connected to the working platform. The edge positioning components are mounted on the positioning rollers between the adjusting baffles and the positioning clamp. In the aforementioned application, when fixing the bumper, the edge positioning components need to be manually adjusted one by one, reducing the efficiency of the fixing process. Furthermore, the edge positioning components occupy a large amount of overhead space, making it difficult for the subsequent welding robotic arm to perform welding on the bumper surface. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides a welding fixture for new energy aluminum alloy bumpers, which solves the problems mentioned in the background section.

[0005] To achieve the above objectives, the present invention provides a welding fixture for new energy aluminum alloy bumpers, including a support frame. A worktable is fixedly connected to the top of the support frame. An inner fixing plate is fixedly connected to the top of the left and right sides of the worktable. Multiple movable blocks are movably connected inside the inner fixing plate. A spring is fixedly connected between the bottom of the movable blocks and the top of the worktable. A load-bearing roller is movably connected between the left and right movable blocks. Movable plates are movably connected inside the left and right sides of the worktable. A bidirectional lead screw is movably connected to the bottom of the worktable. A motor is fixedly connected to the left end of the bidirectional lead screw. The outer side of the bidirectional lead screw is movably connected to the inside of the movable plate. The top of the movable plates on the left and right sides is fixedly connected to a fixing block 1. Two racks are fixedly connected to the side of the fixing block 1 near the center of the worktable on both sides. The top of the inner fixed plate is fixedly connected to multiple fixing blocks 2. A rotating shaft 1 is movably connected between every two fixing blocks 2. Gears are fixedly connected to both ends of the rotating shaft 1. The gears mesh with the racks. A movable block is fixedly connected to the outside of the rotating shaft 1. Two telescopic rods 1 are fixedly connected to the side of each movable block near the center of the worktable. A fixing block 3 is fixedly connected to the outside of the telescopic rod 1. A spring 2 is fixedly connected between the fixing block 3 and the movable block. A rotating shaft 2 is movably connected inside the fixing block 3. V-shaped support frames are fixedly connected to the outer sides of the upper and lower ends of the rotating shaft 2. A fixing pressure plate is fixedly connected between the two V-shaped support frames. The system is equipped with a fixed pressure plate and a telescopic rod. When the equipment is started, it works in conjunction with a movable plate, rack, rotating shaft one, gear, movable block, spring two, rotating shaft two, and V-shaped support frame to rotate the movable block, causing the inner side of the fixed pressure plate to contact the top surface of the bumper. This allows each fixed pressure plate to automatically rotate and adjust its angle according to the curvature of the bumper surface. At the same time, the telescopic rod one is compressed, ensuring that the fixed pressure plate is always in contact with the top surface of the bumper. This completes the automatic clamping and fixing process of the bumper, improving the equipment's working efficiency, reducing the space occupied above the equipment, and making the subsequent welding process smoother.

[0006] As a further description of the above technical solution: The fixed blocks one and two are internally fixedly connected to a telescopic adjustment platform with height adjustment function, and the center of the fixed pressure plate is an arc-shaped flexible pressure plate.

[0007] As a further description of the above technical solution: An angle adjustment device is movably connected inside the support frame, and a bumper is placed on top of the load-bearing roller.

[0008] As a further description of the above technical solution: A flexible support pad is fixedly connected to the outer side of the load-bearing roller, and a centering assembly is fixedly connected to the front and rear sides of the worktable.

[0009] As a further description of the above technical solution: The centering assembly includes an L-shaped fixed rod, a triangular wedge block one, an extension plate, a slide groove, a slider, a triangular wedge block two, a spring three, a telescopic bracket, a fixed plate, a telescopic rod two, a spring four, and a centering plate. The front and rear sides of the movable plate are fixedly connected to an L-shaped fixed rod. A triangular wedge block one is fixedly connected to the outer side of the L-shaped fixed rod. The front and rear sides of the worktable are fixedly connected to an extension plate. Slide grooves are formed inside the left and right sides of the extension plate. A slider is movably connected inside the slide grooves. A spring three is fixedly connected between the slider and the inner side of the slide groove. A triangular wedge block two is fixedly connected to the top of the slider. A telescopic bracket is fixedly connected to the top of the triangular wedge block two. A fixed plate is fixedly connected to the top of the telescopic bracket. Two telescopic rods two are fixedly connected inside the fixed plate. A centering plate is fixedly connected to the end of each telescopic rod two near the center of the worktable. A spring four is fixedly connected between the centering plate and the fixed plate. The centering component is set up so that when the movable plate moves inward, it works with the L-shaped fixing rod, triangular wedge block one, triangular wedge block two, slide groove, slider, spring three, telescopic bracket, fixing plate, telescopic rod two, and spring four to make the centering plates on the left and right sides clamp the left and right sides of the bumper simultaneously, so that the bumper is automatically centered on the load-bearing roller, thereby avoiding angular deviation when the bumper is fixed, and making subsequent welding processing more precise.

[0010] As a further description of the above technical solution: The top height of the centering plate is lower than the top height of both sides of the bumper, and the inclined surface of the second triangular wedge is in contact with the inclined surface of the first triangular wedge.

[0011] As a further description of the above technical solution: The movement trajectory of the centering plate does not coincide with the loading trajectory of the bumper, and an adjustable anti-deformation component is movably connected to the front side of the workbench.

[0012] As a further description of the above technical solution: The adjustable anti-deformation component includes a bevel gear one, a bevel gear two, a fixed block four, a rotating shaft three, an L-shaped rotating plate, a hinge interface, a variable angle flap, an air outlet, an air outlet pipe, and a cooler. A bevel gear one is fixedly connected to one end of the front of the bidirectional lead screw. Two fixed blocks four are fixedly connected to the front of the worktable. A rotating shaft three is movably connected between the two fixed blocks four. A bevel gear two is fixedly connected to the left side of the rotating shaft three. The bevel gear one meshes with the bevel gear two. Multiple L-shaped rotating plates are fixedly connected to the outer side of the rotating shaft three. Each L-shaped rotating plate has a hinge interface inside. A variable angle flap is movably connected inside the hinge interface. An air outlet is inside the variable angle flap. The front of the variable angle flap is fixedly connected to one end of the air outlet pipe. A cooler is fixedly connected to the bottom of the worktable. The bottom of the cooler is fixedly connected to the other end of the air outlet pipe. An adjustable anti-deformation component is installed. When the bidirectional lead screw rotates, it works with bevel gear one, bevel gear two, rotating shaft three, L-shaped rotating plate, and cold air blower to make the variable angle flap follow the L-shaped rotating plate to rotate above the edge of the bumper. This causes the air outlet to blow cold air towards the top of the bumper, thereby controlling the high temperature generated during the welding process and preventing the bumper from deforming due to localized high temperature.

[0013] As a further description of the above technical solution: The air outlet duct is a telescopic corrugated flexible hose, and the variable angle flap is internally connected to a self-locking device.

[0014] As a further description of the above technical solution: The motion trajectory of the L-shaped rotating plate does not coincide with the outer motion trajectory of the fixed pressure plate.

[0015] The advantages of this application are: (1) When the equipment is started, the movable plate, rack, rotating shaft one, gear, movable block, spring two, rotating shaft two, and V-shaped support frame are used to make the movable block rotate and drive the inner side of the fixed pressure plate to contact the top surface of the bumper. Each fixed pressure plate automatically rotates and adjusts its angle according to the curvature of the bumper surface. At the same time, the telescopic rod one is compressed, so that the fixed pressure plate is always in contact with the top surface of the bumper, thereby completing the automatic clamping and fixing process of the bumper, improving the working efficiency of the equipment, reducing the space occupied above the equipment, and making the subsequent welding process smoother.

[0016] (2) When the movable plate moves inward, the L-shaped fixing rod, triangular inclined block one, triangular inclined block two, slide groove, slider, spring three, telescopic bracket, fixing plate, telescopic rod two, and spring four work together to make the centering plates on the left and right sides clamp the left and right sides of the bumper simultaneously, so that the bumper is automatically centered on the load-bearing roller, thereby avoiding the situation of angular deviation when the bumper is fixed, and making the subsequent welding process more accurate.

[0017] (3) When the bidirectional lead screw rotates, it works with bevel gear one, bevel gear two, rotating shaft three, L-shaped rotating plate and cold air blower to make the variable angle flap follow the L-shaped rotating plate to rotate above the edge of the bumper, so that the air outlet blows cold air to the top of the bumper, thereby controlling the high temperature generated by the bumper during the welding process and preventing the bumper from deforming due to local high temperature. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall right-side structure of the present invention; Figure 2 This is a schematic diagram of the overall left side structure of the present invention; Figure 3 This is a schematic diagram of some components of the present invention; Figure 4 This is the present invention. Figure 3 Enlarged structural diagram at point A in the middle; Figure 5 This is a schematic diagram of the centering component structure of the present invention; Figure 6 This is the present invention. Figure 5 Enlarged structural diagram at point B; Figure 7 This is a schematic diagram of the adjustable anti-deformation component structure of the present invention; Figure 8 This is the invention Figure 7 Enlarged structural diagram at point C.

[0019] Explanation of key figure labels: 100. Support frame; 200. Worktable; 300. Inner fixed plate; 400. Movable slider; 500. Spring 1; 600. Load-bearing roller; 700. Movable plate; 800. Double-acting lead screw; 901. Fixed block one; 902. Rack; 903. Fixed block two; 904. Rotating shaft one; 905. Gear; 906. Movable block; 907. Telescopic rod one; 908. Spring two; 909. Fixed block three; 910. Rotating shaft two; 911. V-shaped support frame; 912. Fixed pressure plate; 1000. Centering component; 1001. L-shaped fixing rod; 1002. Triangular wedge block one; 1003. Extension plate; 1004. Slide groove; 1005. Slider; 1006. Triangular wedge block two; 1007. Spring three; 1008. Telescopic bracket; 1009. Fixing plate; 1010. Telescopic rod two; 1011. Spring four; 1012. Centering plate; 1100 Adjustable anti-deformation component; 1101 Bevel gear one; 1102 Bevel gear two; 1103 Fixing block four; 1104 Rotating shaft three; 1105 L-shaped rotating plate; 1106 Hinge interface; 1107 Variable angle flap; 1108 Air outlet; 1109 Air outlet duct; 1110 Air cooler. Detailed Implementation

[0020] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are merely some, not all, of the embodiments of the present application. All other embodiments obtained by those skilled in the art based on the embodiments of the present application without creative effort should fall within the scope of protection of the present application.

[0021] Example 1, as Figures 1-4 As shown, a welding fixture for a new energy aluminum alloy bumper includes a support frame 100. A workbench 200 is fixedly connected to the top of the support frame 100. An inner fixing plate 300 is fixedly connected to the top of the left and right sides of the workbench 200. Multiple movable sliders 400 are movably connected inside the inner fixing plate 300. A spring 500 is fixedly connected between the bottom of the movable slider 400 and the top of the workbench 200. A load-bearing roller 600 is movably connected between the left and right movable sliders 400. Movable plates 700 are movably connected inside the left and right sides of the workbench 200. The moving length of the movable plates 700 inward is fixed. A sliding groove is opened inside the workbench 200. A sliding block is fixedly connected to the bottom of the movable plate 700. The length of the sliding groove is consistent with the meshing stroke length of the rack 902. A double-acting screw 800 is movably connected to the bottom of the workbench 200. A motor is fixedly connected to the left end of the double-acting screw 800. The outer side of the double-acting screw 800 is movably connected to the inside of the movable plate 700. The top of the left and right movable plates 700 is fixedly connected to a fixing block 901. Two racks 902 are fixedly connected to the side of the fixing blocks 901 closest to the center of the worktable 200. The meshing stroke of the racks 902 causes the gear 905 to rotate 90 degrees, and the racks 902 remain engaged with the gears 905 throughout the movement of the movable plates 700. The top of the inner fixed plate 300 is fixedly connected to multiple fixing blocks 903. A rotating shaft 904 is movably connected between every two fixing blocks 903. Gears 905 are fixedly connected to both ends of the rotating shaft 904, and the gears 905 mesh with the racks 902. Movable blocks 906 are fixedly connected to the outer side of the rotating shaft 904. Each movable block 906 is close to... Two telescopic rods 907 are fixedly connected to the side near the center of the workbench 200. A sliding guide sleeve is sleeved on the outside of the telescopic rod 907. A fixed block 909 is fixedly connected to the outside of the telescopic rod 907. A spring 908 is fixedly connected between the fixed block 909 and the movable block 906. A rotating shaft 1104 is movably connected inside the fixed block 909. V-shaped support frames 911 are fixedly connected to the outer sides of the upper and lower ends of the rotating shaft 1104. A rubber damping ring is fixedly connected between the V-shaped support frame 911 and the rotating shaft 1104 to prevent the V-shaped support frame 911 from shifting its angle when vibration occurs during the welding process. A fixed pressure plate 912 is fixedly connected between the two V-shaped support frames 911.

[0022] The fixed blocks 901 and 903 are internally connected to telescopic adjustment platforms with height adjustment capabilities, and the center of the fixed pressure plate 912 is an arc-shaped flexible pressure plate. The support frame 100 is internally connected to an angle adjustment device, and a bumper is placed on top of the load-bearing roller 600. A flexible support pad is fixedly connected to the outer side of the load-bearing roller 600, and centering components 1000 are fixedly connected to the front and rear sides of the worktable 200.

[0023] The system is equipped with a fixed pressure plate 912 and a telescopic rod 907. When the equipment is started, these components work together with a movable plate 700, a rack 902, a rotating shaft 904, a gear 905, a movable block 906, a second spring 908, a second rotating shaft 910, and a V-shaped support frame 911. This causes the movable block 906 to rotate, bringing the inner side of the fixed pressure plate 912 into contact with the top surface of the bumper. Each fixed pressure plate 912 automatically rotates and adjusts its angle according to the curvature of the bumper surface. At the same time, the telescopic rod 907 is compressed, ensuring that the fixed pressure plate 912 remains in contact with the top surface of the bumper. This completes the automatic clamping and fixing process of the bumper, improving equipment efficiency, reducing the space occupied above the equipment, and facilitating subsequent welding processes.

[0024] In practical use, the above-mentioned equipment is operated by placing the bumper onto the load-bearing roller 600, then starting the motor. The motor drives the bidirectional lead screw 800 to rotate, causing the two movable plates 700 on both sides to move towards each other. The movable plates 700 then move the fixed block 901, which in turn moves the rack 902. The rack 902 then drives the gear 905 to rotate, which in turn drives the rotating shaft 904 to rotate. The rotating shaft 904 then rotates the movable block 906 to a horizontal position, bringing the fixed pressure plate 912 into contact with the top surface of the bumper. Each fixed pressure plate 912 automatically adjusts the angle of the V-shaped support frame 911 according to the slope of the bumper surface it is on. The fixed pressure plate 912 is brought into contact with the surface of the bumper, causing the fixed pressure plate 912 to drive the movable block 906 to move along the direction of the telescopic rod 907. This causes the telescopic rod 907 to retract, storing force in the spring 908. Simultaneously, the fixed pressure plate 912 applies downward pressure to the bumper, thereby achieving the upper and lower clamping of the bumper between the load-bearing roller 600 and the fixed pressure plate 912, thus fixing the bumper. When the movable plate 700 moves inward to the innermost side, the movable slider 400 is clamped and fixed by the movable plate 700, making the fixed state of the bumper more stable. This completes the automatic clamping and fixing process of the bumper, improving the working efficiency of the equipment, reducing the space occupied above the equipment, and making the subsequent welding process smoother.

[0025] Example 2, as Figures 1-7As shown, based on Embodiment 1, the centering component 1000 includes an L-shaped fixing rod 1001, a triangular wedge block 1002, an extension plate 1003, a slide groove 1004, a slider 1005, a second triangular wedge block 1006, a third spring 1007, a telescopic bracket 1008, a fixing plate 1009, a second telescopic rod 1010, a fourth spring 1011, and a centering plate 1012. The L-shaped fixing rod 1001 is fixedly connected to the front and rear sides of the movable plate 700, and the triangular wedge block 1002 is fixedly connected to the outer side of the L-shaped fixing rod 1001. The extension plate 1003 is fixedly connected to the front and rear sides of the worktable 200. Slide grooves 1004 are formed inside the left and right sides of the extension plate 1003. A slider 1005 is movably connected inside the slide groove 1004, and rollers are movably connected to the left and right sides of the slider 1005. The rollers and the slide groove 1004... The slider 1005 and the inner side of the slide groove 1004 are in rolling contact. A spring 1007 is fixedly connected between the slider 1005 and the inner side of the slide groove 1004. The spring 1007 is set so that the slider 1005 can automatically reset. A triangular inclined block 1006 is fixedly connected to the top of the slider 1005. A telescopic bracket 1008 is fixedly connected to the top of the triangular inclined block 1006. An electric self-locking device is movably connected inside the telescopic bracket 1008. A fixed plate 1009 is fixedly connected to the top of the telescopic bracket 1008. Two telescopic rods 1010 are fixedly connected inside the fixed plate 1009. A centering plate 1012 is fixedly connected to the end of the telescopic rod 1010 near the center of the worktable 200. An elastic buffer strip is attached to the outer surface of the centering plate 1012. A spring 1011 is fixedly connected between the centering plate 1012 and the fixed plate 1009.

[0026] The top height of the center plate 1012 is lower than the top height of both sides of the bumper, and the inclined surface of the second triangular wedge block 1006 is in contact with the inclined surface of the first triangular wedge block 1002. The movement trajectory of the center plate 1012 does not coincide with the loading trajectory of the bumper, and the front side of the worktable 200 is movably connected to an adjustable anti-deformation component 1100.

[0027] The centering component 1000 is set up so that when the movable plate 700 moves inward, it works in conjunction with the L-shaped fixing rod 1001, triangular wedge block one 1002, triangular wedge block two 1006, slide groove 1004, slider 1005, spring three 1007, telescopic bracket 1008, fixing plate 1009, telescopic rod two 1010, and spring four 1011 to make the centering plates 1012 on the left and right sides simultaneously clamp the left and right sides of the bumper, so that the bumper is automatically centered on the load-bearing roller 600, thereby avoiding angular displacement when the bumper is fixed, and making subsequent welding processing more precise.

[0028] In practical use, when the movable plates 700 move towards each other, the L-shaped fixing rod 1001 moves with the movable plates 700, and the first triangular wedge block 1002 moves with the L-shaped fixing rod 1001, so that the first triangular wedge block 1002 contacts the second triangular wedge block 1006, and the second triangular wedge block 1006 moves inward along the direction of the slide groove 1004, so that the second triangular wedge block 1006 drives the slider 1005 and the telescopic bracket 1008 to move inward along the direction of the slide groove 1004, so that the third spring 1007 is compressed, so that the two centering plates 1012 on both sides move towards each other, so that the bumper is simultaneously clamped by the centering plates 1012 on the left and right sides, thereby realizing the automatic centering of the bumper on the load-bearing roller 600, thus avoiding the angular displacement of the bumper during fixing, and making the subsequent welding process more precise.

[0029] Example 3, as Figures 2-8 As shown, based on Embodiment 1 (or Embodiment 2), the adjustable anti-deformation component 1100 includes a bevel gear 1101, a bevel gear 2 1102, a fixing block 4 1103, a rotating shaft 3 1104, an L-shaped rotating plate 1105, a hinge interface 1106, a variable angle flap 1107, an air outlet 1108, an air outlet pipe 1109, and a cooler 1110. A bevel gear 1101 is fixedly connected to one end of the front of the bidirectional lead screw 800. Two fixing blocks 4 1103 are fixedly connected to the front of the worktable 200. A rotating shaft 3 1104 is movably connected between the two fixing blocks 4 1103. A bevel gear 2 1102 is fixedly connected to the left side of the rotating shaft 3 1104. A fixed connection is established between the rotating shaft 3 1104 and the fixing block 4 1103. An electronic clamp automatically locks the rotating shaft 1104 after it rotates to the correct position. Bevel gear 1101 meshes with bevel gear 2102. Multiple L-shaped rotating plates 1105 are fixedly connected to the outer side of the rotating shaft 1104. Each L-shaped rotating plate 1105 has a hinge interface 1106 inside. A variable angle flap 1107 is movably connected inside the hinge interface 1106. An air outlet 1108 is opened inside the variable angle flap 1107. The air outlet 1108 and the welding point of the bumper are staggered. The front side of the variable angle flap 1107 is fixedly connected to one end of the air outlet pipe 1109. A cooler 1110 is fixedly connected to the bottom of the workbench 200. The bottom of the cooler 1110 is fixedly connected to the other end of the air outlet pipe 1109.

[0030] The air outlet duct 1109 is a telescopic corrugated flexible hose, and the variable angle flap 1107 is internally connected with a self-locking device. The movement trajectory of the L-shaped rotating plate 1105 does not coincide with the outer movement trajectory of the fixed pressure plate 912.

[0031] An adjustable anti-deformation component 1100 is installed. When the bidirectional lead screw 800 rotates, it works in conjunction with bevel gear 1101, bevel gear 2 1102, rotating shaft 3 1104, L-shaped rotating plate 1105, and air cooler 1110 to make the variable angle flap 1107 rotate with the L-shaped rotating plate 1105 to the top of the bumper edge, so that the air outlet 1108 blows cold air towards the top of the bumper, thereby controlling the high temperature generated by the bumper during the welding process and preventing the bumper from deforming due to local high temperature.

[0032] In practical use, when the movable plates 700 move towards each other, the bidirectional lead screw 800 drives the bevel gear 1101 to rotate, which in turn drives the bevel gear 1102 to rotate. The bevel gear 1102 then drives the rotating shaft 1104 to rotate, which in turn drives the L-shaped rotating plate 1105 to rotate towards the center of the worktable 200. The L-shaped rotating plate 1105 then drives the variable angle flap 1107 to rotate. The variable angle flap 1107 can be adjusted according to different bumper heights. When welding, the cold air fan 1110 is activated, allowing cold air to enter the variable angle flap 1107 from the air outlet 1109 and spray it onto the bumper surface from the air outlet 1108. This controls the high temperature generated during the welding process and prevents the bumper from deforming due to localized high temperatures.

[0033] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A welding fixture for new energy aluminum alloy bumpers, comprising a support frame, characterized in that, A workbench is fixedly connected to the top of the support frame. Inner fixed plates are fixedly connected to the top of the left and right sides of the workbench. Multiple movable sliders are movably connected inside the inner fixed plates. A spring is fixedly connected between the bottom of the movable slider and the top of the workbench. A load-bearing roller is movably connected between the movable blocks on the left and right sides. Movable plates are movably connected inside the left and right sides of the workbench. A bidirectional lead screw is movably connected to the bottom of the workbench. A motor is fixedly connected to the left end of the bidirectional lead screw. The outer side of the bidirectional lead screw is movably connected to the inside of the movable plate. The top of the movable plates on the left and right sides is fixedly connected to a fixing block 1. Two racks are fixedly connected to the side of the fixing block 1 near the center of the worktable on both sides. The top of the inner fixed plate is fixedly connected to multiple fixing blocks 2. A rotating shaft 1 is movably connected between every two fixing blocks 2. Gears are fixedly connected to both ends of the rotating shaft 1. The gears mesh with the racks. A movable block is fixedly connected to the outside of the rotating shaft 1. Two telescopic rods 1 are fixedly connected to the side of each movable block near the center of the worktable. A fixing block 3 is fixedly connected to the outside of the telescopic rod 1. A spring 2 is fixedly connected between the fixing block 3 and the movable block. A rotating shaft 2 is movably connected inside the fixing block 3. V-shaped support frames are fixedly connected to the outer sides of the upper and lower ends of the rotating shaft 2. A fixing pressure plate is fixedly connected between the two V-shaped support frames.

2. The welding fixture for a new energy aluminum alloy bumper according to claim 1, characterized in that, The fixed blocks one and two are internally fixedly connected to a telescopic adjustment platform with height adjustment function, and the center of the fixed pressure plate is an arc-shaped flexible pressure plate.

3. The welding fixture for a new energy aluminum alloy bumper according to claim 2, characterized in that, An angle adjustment device is movably connected inside the support frame, and a bumper is placed on top of the load-bearing roller.

4. The welding fixture for a new energy aluminum alloy bumper according to claim 3, characterized in that, A flexible support pad is fixedly connected to the outer side of the load-bearing roller, and a centering assembly is fixedly connected to the front and rear sides of the worktable.

5. The welding fixture for a new energy aluminum alloy bumper according to claim 4, characterized in that, The centering assembly includes an L-shaped fixed rod, a triangular wedge block one, an extension plate, a slide groove, a slider, a triangular wedge block two, a spring three, a telescopic bracket, a fixed plate, a telescopic rod, a spring four, and a centering plate. The front and rear sides of the movable plate are fixedly connected to an L-shaped fixed rod. A triangular wedge block one is fixedly connected to the outer side of the L-shaped fixed rod. An extension plate is fixedly connected to the front and rear sides of the worktable. Slide grooves are formed inside the left and right sides of the extension plate. A slider is movably connected inside the slide grooves. A spring three is fixedly connected between the slider and the inner side of the slide groove. A triangular wedge block two is fixedly connected to the top of the slider. A telescopic bracket is fixedly connected to the top of the triangular wedge block two. A fixed plate is fixedly connected to the top of the telescopic bracket. Two telescopic rods two are fixedly connected inside the fixed plate. A centering plate is fixedly connected to the end of each telescopic rod two near the center of the worktable. A spring four is fixedly connected between the centering plate and the fixed plate.

6. The welding fixture for a new energy aluminum alloy bumper according to claim 5, characterized in that, The top height of the centering plate is lower than the top height of both sides of the bumper, and the inclined surface of the second triangular wedge is in contact with the inclined surface of the first triangular wedge.

7. The welding fixture for a new energy aluminum alloy bumper according to claim 6, characterized in that, The movement trajectory of the centering plate does not coincide with the loading trajectory of the bumper, and an adjustable anti-deformation component is movably connected to the front side of the workbench.

8. The welding fixture for a new energy aluminum alloy bumper according to claim 7, characterized in that, The adjustable anti-deformation component includes a bevel gear one, a bevel gear two, a fixed block four, a rotating shaft three, an L-shaped rotating plate, a hinge interface, a variable angle flap, an air outlet, an air outlet pipe, and a cooler. A bevel gear one is fixedly connected to one end of the front of the bidirectional lead screw. Two fixed blocks four are fixedly connected to the front of the worktable. A rotating shaft three is movably connected between the two fixed blocks four. A bevel gear two is fixedly connected to the left side of the rotating shaft three. The bevel gear one meshes with the bevel gear two. Multiple L-shaped rotating plates are fixedly connected to the outer side of the rotating shaft three. Each L-shaped rotating plate has a hinge interface inside. A variable angle flap is movably connected inside the hinge interface. An air outlet is inside the variable angle flap. The front of the variable angle flap is fixedly connected to one end of the air outlet pipe. A cooler is fixedly connected to the bottom of the worktable. The bottom of the cooler is fixedly connected to the other end of the air outlet pipe.

9. The welding fixture for a new energy aluminum alloy bumper according to claim 8, characterized in that, The air outlet duct is a telescopic corrugated flexible hose, and the variable angle flap is internally connected with a self-locking device.

10. The welding fixture for a new energy aluminum alloy bumper according to claim 9, characterized in that, The motion trajectory of the L-shaped rotating plate does not coincide with the outer motion trajectory of the fixed pressure plate.

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