Automobile door trim panel welding fixture
By designing an adjustable clamping mechanism, the problem of poor applicability of existing automotive door trim welding equipment clamps was solved, enabling rapid adaptation to welding of different types of door trim panels and improving welding efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHONGQING JINTONGCHENG TECH CO LTD
- Filing Date
- 2025-07-17
- Publication Date
- 2026-06-09
AI Technical Summary
The existing automotive door panel welding equipment has poor fixture applicability, requiring fixture replacement to adapt to different types of door panels, and the assembly and disassembly are cumbersome, reducing welding efficiency.
A clamping mechanism including a mounting rod, a sliding seat, and clamping blocks was designed. Through a drive component, an adjustment component, and a screw mechanism, multiple sets of clamping blocks can be flexibly adjusted, which can adapt to different types of door trim panels without the need for frequent clamp replacements.
The fixture has improved applicability and welding efficiency, enabling it to quickly adapt to different types of door trim panels, simplifying the operation process and increasing welding efficiency.
Smart Images

Figure CN224333810U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of automotive door trim panel welding technology, specifically to an automotive door trim panel welding fixture. Background Technology
[0002] Car door trim panels are decorative components installed on the inside of car doors, typically consisting of a main trim panel and a triangular trim panel. As an important part of the car interior, they not only beautify the cabin environment but also effectively improve the vehicle's safety performance.
[0003] For example, Chinese patent application number 202322752206.7 discloses a welding device for car door interior panels, including a base plate, a support column fixedly installed on the top of the base plate, a crossbar fixedly installed on the top of the support column, and an adjustment mechanism on one side of the crossbar. Through the structural design of the adjustment mechanism, starting a first motor drives a first threaded rod to rotate, which in turn drives a first sliding block to move, thereby moving a fixed groove. Starting a second motor drives a second threaded rod to move, which in turn drives a second sliding block to move, thereby moving a connecting rod. Starting a third motor drives a third threaded rod to move, which in turn drives a first fixed block to move, which in turn drives a third sliding block to move. The moving third sliding block drives the second fixed block to move, thereby moving the welding head. This achieves the purpose of automatically welding car door interior panels, ensuring welding quality and saving manpower.
[0004] Existing automotive door trim panel welding equipment typically uses simple fixtures that can only hold one type of door trim panel. When welding different types of door trim panels, the appropriate fixture must be changed, resulting in poor applicability and cumbersome assembly and disassembly, thus reducing welding efficiency. Therefore, to address these technical problems, a new automotive door trim panel welding fixture is proposed. Utility Model Content
[0005] To address the shortcomings of existing technologies, this utility model proposes a welding fixture for automotive door trim panels, which improves the applicability of the device and welding efficiency.
[0006] A welding fixture for automotive door trim panels includes a welding platform and a clamping mechanism, wherein the clamping mechanism includes:
[0007] The mounting rods are provided in two sets. The two sets of mounting rods are located on the top surface of the welding platform and can be moved relatively closer or further away from each other along the length direction of the welding platform by a drive assembly.
[0008] The sliding seats are provided on both sets of mounting rods, each capable of sliding along the width direction of the welding platform; the multiple sets of sliding seats on the same mounting rod are connected to the mounting rod via a first adjusting component, used to drive the sliding seats to slide; and
[0009] The clamping blocks are provided in multiple sets corresponding to the multiple sets of sliding seats and are located between the two sets of mounting rods. The multiple sets of clamping blocks are respectively slidably arranged on the multiple sets of sliding seats along the length direction of the welding platform through the second adjustment component.
[0010] The beneficial effects of the above-mentioned automotive door trim panel welding fixture are as follows:
[0011] By driving two sets of mounting rods to move closer together, multiple sets of clamping blocks can abut against the sides of the door trim panel to clamp the door trim panel. By adjusting the first and second adjustment components, the clamping blocks can be driven to move along the width and length of the welding platform to adjust the initial position of the multiple sets of clamping blocks. This makes it easier to clamp different types of door trim panels. The multiple sets of clamping blocks can abut against the sides of the door trim panel, which is convenient for clamping different types of door trim panels. Moreover, no assembly or disassembly operation is required, which improves the applicability of the device and welding efficiency.
[0012] In one embodiment, the drive assembly includes a connecting block, a bidirectional screw, and a motor; the top surface of the welding platform has two sets of guide grooves facing each other, and each set of guide grooves is provided with a connecting block that can slide along the length direction of the welding platform; the bidirectional screw is rotatably disposed in the welding platform, with its two ends located in the two sets of guide grooves respectively, and threadedly connected to the two sets of connecting blocks; the motor is disposed on the welding platform, and its output shaft is coaxially connected to the bidirectional screw.
[0013] In one embodiment, the top ends of both sets of mounting rods are provided with T-shaped grooves, and the bottom ends of multiple sets of sliding seats are provided with T-shaped sliders. The T-shaped sliders are slidably disposed in the T-shaped grooves along the width direction of the welding platform.
[0014] In one embodiment, the first adjusting component includes a worm gear, a worm, a gear, and a rack; multiple sets of sliding seats are rotatably provided with meshing worm gears and worms, multiple sets of worm gears are coaxially provided with gears at their bottom ends, the mounting rod is provided with a rack, and multiple sets of gears mesh with the rack.
[0015] In one embodiment, the second adjustment component includes guide rods and an adjustment screw. Two sets of guide rods that can slide along the length of the welding platform are arranged opposite each other on the sliding seat. One end of each set of guide rods is connected to the clamping block. The adjustment screw is threaded onto the sliding seat and is parallel to the guide rods. One end of the adjustment screw is rotatably connected to the clamping block.
[0016] In one embodiment, a limiting disk is provided at one end of the adjusting screw, and a limiting hole is provided at one end of the clamping block. The limiting disk is rotatably disposed within the limiting hole.
[0017] In one embodiment, the end of the clamping block away from the mounting rod is detachably provided with a rubber pad.
[0018] In one embodiment, the clamping block has multiple sets of dovetail slots, and the rubber pad has multiple sets of dovetail blocks, which can be locked into the multiple sets of dovetail slots. Attached Figure Description
[0019] To more clearly illustrate the specific embodiments of this utility model, the accompanying drawings used in the specific embodiments will be briefly described below. In all the drawings, the elements or parts are not necessarily drawn to scale.
[0020] Figure 1 A three-dimensional structural schematic diagram of a welding fixture for automotive door trim panels provided in an embodiment of this utility model;
[0021] Figure 2 for Figure 1 An exploded view of a welding fixture for automotive door trim panels is shown.
[0022] Figure 3 for Figure 1 An exploded view of an mounting rod in a welding fixture for automotive door trim panels is shown.
[0023] Figure 4 for Figure 1 An exploded view of a clamping block in a welding fixture for automotive door trim panels is shown.
[0024] Figure label:
[0025] 1. Welding platform; 11. Guide groove;
[0026] 10. Mounting rod; 101. T-slot;
[0027] 20. Sliding seat; 201. T-shaped slider;
[0028] 30. Clamping block; 301. Rubber pad; 302. Dovetail groove; 303. Dovetail block;
[0029] 40. Connecting block; 401. Bidirectional screw; 402. Motor;
[0030] 50. Worm gear; 501. Worm; 502. Gear; 503. Rack;
[0031] 60. Guide rod; 601. Adjusting screw. Detailed Implementation
[0032] The embodiments of the present invention will now be described in detail with reference to the accompanying drawings. These embodiments are merely illustrative of the present invention and should not be construed as limiting the scope of protection of the present invention.
[0033] Please see Figure 1 and Figure 2 One embodiment of an automotive door trim panel welding fixture includes a welding platform 1 and a clamping mechanism, the clamping mechanism including a mounting rod 10, a sliding seat 20 and a clamping block 30.
[0034] Specifically, there are two sets of mounting rods 10. The two sets of mounting rods 10 are mounted on the top surface of the welding platform 1 and can move relatively close to or away from each other along the length direction of the welding platform 1 via a drive assembly. Each set of mounting rods 10 is provided with multiple sets of sliding seats 20 that can slide along the width direction of the welding platform 1. The multiple sets of sliding seats 20 on the same mounting rod 10 are connected to the mounting rod 10 via a first adjustment assembly for driving the sliding seats 20 to slide. Multiple sets of clamping blocks 30 are provided corresponding to the multiple sets of sliding seats 20 and are located between the two sets of mounting rods 10. The multiple sets of clamping blocks 30 are respectively mounted on the multiple sets of sliding seats 20 and can slide along the length direction of the welding platform 1 via a second adjustment assembly.
[0035] In the above embodiments, by driving the two sets of mounting rods 10 to move closer to each other through the driving component, the multiple sets of clamping blocks 30 can abut against the two sides of the door trim panel to clamp the door trim panel. By adjusting the first adjustment component and the second adjustment component, the clamping blocks 30 can be driven to move along the width and length directions of the welding platform 1 to adjust the initial position of the multiple sets of clamping blocks 30. This makes it easier to clamp different types of door trim panels. The multiple sets of clamping blocks 30 can abut against the two sides of the door trim panel, which is convenient for clamping different types of door trim panels. Moreover, no disassembly or assembly operation is required, which improves the applicability of the device and the welding efficiency.
[0036] For specific details in the above embodiments, please refer to Figure 3 Both sets of mounting rods 10 have T-shaped grooves 101 at their top ends, and multiple sets of sliding seats 20 have T-shaped sliders 201 at their bottom ends. The T-shaped sliders 201 slide within the T-shaped grooves 101 along the width of the welding platform 1. The cooperation between the T-shaped sliders 201 and the T-shaped grooves 101 improves the stability of the sliding seats 20.
[0037] Please see Figure 2In one embodiment, the drive assembly includes a connecting block 40, a bidirectional screw 401, and a motor 402. Two sets of guide grooves 11 are provided opposite each other on the top surface of the welding platform 1. Each set of guide grooves 11 is provided with a connecting block 40 that can slide along the length direction of the welding platform 1. The bidirectional screw 401 is rotatably disposed in the welding platform 1, and its two ends are respectively located in the two sets of guide grooves 11 and are threadedly connected to the two sets of connecting blocks 40. The motor 402 is disposed on the welding platform 1, and its output shaft is coaxially connected to the bidirectional screw 401.
[0038] In the above embodiment, the motor 402 drives the bidirectional screw 401 to rotate and engage with the two sets of connecting blocks 40 through threaded engagement, thereby driving the two sets of connecting blocks 40 to move the two sets of mounting rods 10 relatively closer together. Conversely, the motor 402 drives the bidirectional screw 401 to rotate in the opposite direction, thereby driving the two sets of mounting rods 10 to move relatively away from each other. This makes it convenient to drive the two sets of mounting rods 10 to move relatively closer or further apart.
[0039] Please see Figure 3 In one embodiment, the first adjusting component includes a worm wheel 50, a worm 501, a gear 502, and a rack 503; multiple sets of sliding seats 20 are rotatably provided with meshing worm wheels 50 and worms 501, and multiple sets of worm wheels 50 are coaxially provided with gears 502 at their bottom ends; a rack 503 is provided on the mounting rod 10, and multiple sets of gears 502 mesh with the rack 503.
[0040] In the above embodiment, by rotating the worm 501 to mesh with the worm wheel 50, the worm wheel 50 can be driven to rotate, which in turn drives the gear 502 to rotate. The rotation of the gear 502 and its meshing with the rack 503 can drive the sliding seat 20 to move the clamping block 30 along the width direction of the welding platform 1. When the worm 501 stops rotating, it meshes with the worm wheel 50 to form a self-locking mechanism, thus fixing the sliding seat 20 and the clamping block 30. The clamping block 30 is easy to move and fix along the width direction of the welding platform 1.
[0041] Please see Figure 3 and Figure 4 In one embodiment, the second adjustment component includes guide rods 60 and adjusting screws 601. Two sets of guide rods 60 that can slide along the length of the welding platform 1 are arranged opposite each other on the sliding seat 20. One end of each set of guide rods 60 is connected to a clamping block 30. The adjusting screw 601 is threadedly connected to the sliding seat 20 and is parallel to the guide rods 60. One end of the adjusting screw 601 is rotatably connected to the clamping block 30.
[0042] In the above embodiment, rotating the adjusting screw 601 and the sliding seat 20 in a threaded engagement causes the adjusting screw 601 to move. The movement of the adjusting screw 601 drives the clamping block 30 to move along the length direction of the welding platform 1, and stopping the rotation of the adjusting screw 601 fixes the clamping block 30. This makes it convenient to drive the clamping block 30 to move along the length direction of the welding platform 1 and to fix it.
[0043] Specifically, in the above embodiments, a limiting disk is provided at one end of the adjusting screw 601, and a limiting hole is provided at one end of the clamping block 30. The limiting disk is rotatably disposed in the limiting hole.
[0044] Please see Figure 3 and Figure 4 In one embodiment, a rubber pad 301 is detachably provided at the end of the clamping block 30 away from the mounting rod 10. By providing the rubber pad 301, the contact friction between the clamping block 30 and the door trim panel can be increased, thereby improving clamping stability and preventing clamping damage to the door trim panel. Furthermore, the rubber pad 301 is detachable, making it easy to replace if the rubber pad 301 fails.
[0045] Specifically, the clamping block 30 has multiple sets of dovetail slots 302, and the rubber pad 301 has multiple sets of dovetail blocks 303, which can be locked into the multiple sets of dovetail slots 302. The rubber pad 301 and the clamping block 30 are connected by a snap-fit connection, making it convenient and effortless to install and remove the rubber pad 301.
[0046] The specific implementation method of the above-mentioned automotive door trim panel welding fixture is as follows:
[0047] When clamping different types of door trim panels, firstly, by rotating the worm gear 501 to mesh with the worm wheel 50, the worm wheel 50 is driven to drive the gear 502 to rotate. The rotation of the gear 502 meshes with the rack 503, which drives the sliding seat 20 to move the clamping block 30 along the width direction of the welding platform 1. When the clamping block 30 moves to the appropriate position, the rotation of the worm gear 501 is stopped. Then, the adjusting screw 601 is rotated to engage with the sliding seat 20, causing the adjusting screw 601 to move. The movement of the adjusting screw 601 drives the clamping block 30 to move along the length direction of the welding platform 1. When the clamping block 30 moves to the appropriate position, the rotation of the adjusting screw 601 is stopped. Finally, by driving the bidirectional screw 401 to rotate through the motor 402, which engages with the two sets of connecting blocks 40, the two sets of connecting blocks 40 are driven to move the two sets of mounting rods 10 closer to each other. The movement of the two sets of mounting rods 10 closer to each other drives the multiple sets of clamping blocks 30 to move closer to each other and clamp the door trim panel. By adjusting the initial position of the clamping block 30 along the width and length of the welding platform 1, it is easy to clamp different types of door trim panels without the need for assembly and disassembly operations, thereby improving the applicability of the device and welding efficiency.
[0048] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model, and they should all be covered within the scope of the claims and specification of this utility model.
Claims
1. A welding fixture for automotive door trim panels, characterized in that, It includes a welding platform (1) and a clamping mechanism, the clamping mechanism comprising: The mounting rods (10) are provided in two sets. The two sets of mounting rods (10) are located on the top surface of the welding platform (1) and can move relatively closer or further away from each other along the length direction of the welding platform (1) by means of a drive assembly. Sliding seats (20): Multiple sliding seats (20) are provided on both sets of mounting rods (10) and can slide along the width direction of the welding platform (1); multiple sliding seats (20) on the same mounting rod (10) are connected to the mounting rod (10) through a first adjusting component to drive the sliding seats (20) to slide; and Clamping blocks (30) are provided in multiple sets corresponding to multiple sets of sliding seats (20) and are located between two sets of mounting rods (10). Multiple sets of clamping blocks (30) are respectively arranged on multiple sets of sliding seats (20) and can slide along the length direction of the welding platform (1) through the second adjustment component.
2. The automotive door trim panel welding fixture according to claim 1, characterized in that, The drive assembly includes a connecting block (40), a bidirectional screw (401), and a motor (402). The top surface of the welding platform (1) is provided with two sets of guide grooves (11) facing each other. Each set of guide grooves (11) is provided with a connecting block (40) that can slide along the length of the welding platform (1). The bidirectional screw (401) is rotatably disposed in the welding platform (1), and its two ends are respectively located in the two sets of guide grooves (11) and threadedly connected to the two sets of connecting blocks (40). The motor (402) is disposed on the welding platform (1), and its output shaft is coaxially connected to the bidirectional screw (401).
3. The automotive door trim panel welding fixture according to claim 1, characterized in that, Both sets of mounting rods (10) have T-shaped grooves (101) at their top ends, and multiple sets of sliding seats (20) have T-shaped sliders (201) at their bottom ends. The T-shaped sliders (201) slide along the width of the welding platform (1) within the T-shaped grooves (101).
4. The automotive door trim panel welding fixture according to claim 1, characterized in that, The first adjustment component includes a worm gear (50), a worm (501), a gear (502), and a rack (503); multiple sets of sliding seats (20) are rotatably provided with meshing worm gears (50) and worms (501), multiple sets of worm gears (50) are coaxially provided with gears (502) at their bottom ends, and racks (503) are provided on the mounting rod (10), and multiple sets of gears (502) mesh with racks (503).
5. The automotive door trim panel welding fixture according to claim 1, characterized in that, The second adjustment component includes guide rods (60) and adjusting screws (601). Two sets of guide rods (60) are arranged opposite each other on the sliding seat (20) and can slide along the length direction of the welding platform (1). One end of the two sets of guide rods (60) is connected to the clamping block (30). The adjusting screw (601) is threaded on the sliding seat (20) and parallel to the guide rods (60). One end of the adjusting screw (601) is rotatably connected to the clamping block (30).
6. The automotive door trim panel welding fixture according to claim 5, characterized in that, The adjusting screw (601) is provided with a limiting plate at one end, and the clamping block (30) is provided with a limiting hole at one end. The limiting plate is rotatably disposed in the limiting hole.
7. The automotive door trim panel welding fixture according to claim 1, characterized in that, The end of the clamping block (30) away from the mounting rod (10) is detachably provided with a rubber pad (301).
8. The automotive door trim panel welding fixture according to claim 7, characterized in that, The clamping block (30) has multiple sets of dovetail slots (302), and the rubber pad (301) is provided with multiple sets of dovetail blocks (303). The multiple sets of dovetail blocks (303) can be locked in the multiple sets of dovetail slots (302).