A welding device for automobile parts
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHENZHEN QUNXINDA WU JIN CO LTD
- Filing Date
- 2025-09-04
- Publication Date
- 2026-08-07
AI Technical Summary
针对现有技术中存在的问题，本实用新型提供了一种汽车零部件用焊接装置，以解决背景技术中提到的夹持机构适配性差，以及间距调节依赖人工技术问题
1、调节机构驱动夹板精准夹持，能适配不同翼缘宽度、腹板厚度的工字型零件，无需更换夹具即可完成多规格零件的固定，减少换型时间，提升生产效率，挡板为零件提供定位基准，确保两组零件摆放整齐，避免焊接时因位置偏移导致的焊偏问题，提升焊接精度，夹板与零件的紧密接触保证焊接过程中零件无晃动，减少焊接变形，提高产品质量稳定性，整体结构兼顾调节灵活性与固定可靠性，满足多样化工字型零件的焊接需求。
Smart Images
Figure CN224600894U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of automotive parts processing, and more specifically, it relates to a welding device for automotive parts. Background Technology
[0002] Automotive component welding equipment is a key piece of equipment used in the automotive manufacturing and repair industry to connect metal components, especially in the welding of I-beam-shaped parts (such as frame beams, chassis support components, etc.). Due to their structural characteristics, I-beam-shaped parts need to be welded to form a stable load-bearing frame. The welding quality directly affects the structural strength of the entire vehicle. Therefore, the accuracy and stability of part fixing are extremely important. Existing welding equipment usually uses fixing fixtures to hold parts and works with welding components to complete the welding operation.
[0003] Existing welding equipment for automotive parts has been found to have the following issues during use: 1. It is not possible to quickly fix I-beam parts of different specifications. Most of them are single-group fixed designs with limited adjustment range. When changing specifications, it is necessary to disassemble the fixture, replace the parts or recalibrate, which is cumbersome and time-consuming. Especially in small-batch, multi-variety production scenarios, frequent changes of type seriously restrict production efficiency.
[0004] 2. The existing spacing between the two sets of clamping mechanisms needs to be adjusted by manually tightening bolts or pushing sliders. This is not only labor-intensive, but also prone to asymmetry in the spacing on both sides due to manual operation errors. This causes uneven force on the I-shaped parts, positioning deviation, and in turn, welding deformation or incomplete welding, affecting the stability of product quality. Utility Model Content
[0005] (a) Technical problems to be solved In view of the problems existing in the prior art, this utility model provides a welding device for automotive parts to solve the problems mentioned in the background art, such as poor adaptability of the clamping mechanism and reliance on manual technology for spacing adjustment.
[0006] (II) Technical Solution To achieve the above objectives, this utility model provides the following technical solution: a welding device for automotive parts, comprising an operating table, a welding assembly disposed at the rear end of the top of the operating table, sliding holes disposed at both ends of the top of the operating table, connecting blocks slidably disposed within each of the two sets of sliding holes, sliding assemblies disposed at the bottom of each of the two sets of connecting blocks, mounting plates disposed at the top of each of the two sets of connecting blocks, connecting plates disposed at opposite ends of each of the mounting plates, fixing plates disposed at opposite ends of each of the two sets of connecting plates, adjusting mechanisms disposed at the top and bottom of each of the two sets of fixing plates, and clamping plates disposed at the top and bottom of each of the two sets of fixing plates via the adjusting mechanisms, and a baffle disposed at the rear end of the top of the operating table.
[0007] The present invention is further configured such that the adjusting mechanism includes two sets of bidirectional screws, each of the two sets of fixed plates is provided with a working cavity, and a bidirectional screw is rotatably arranged in each of the two sets of fixed plate working cavities. First sliders are threadedly connected to the front and rear sides of the outer sides of the two sets of bidirectional screws, and the four sets of first sliders are slidably connected to one end of the corresponding fixed plate working cavity. Sliding holes are provided at the top and bottom of the two sets of fixed plate working cavities, and second sliders are slidably arranged at both ends of the sliding holes in the four sets of fixed plate working cavities. The two ends of the four sets of first sliders are respectively connected to one end of the corresponding second slider, and the other end of each of the eight sets of second sliders is provided with... Equipped with a hinge assembly, each of the eight sets of second sliders is connected at one end to a corresponding clamping plate via the hinge assembly. A bidirectional screw drives the first slider to move synchronously in opposite directions. Through the linkage between the second slider and the hinge assembly, the clamping plates open and close symmetrically, ensuring uniform force on both sides of the I-shaped part and improving clamping stability. The sliding cooperation between the first and second sliders limits the adjustment direction, ensuring that the clamping plates always move along a preset trajectory, accurately aligning with the clamping part of the part. This solves the problem of inaccurate positioning during manual adjustment. The rotation amplitude of the bidirectional screw can be controlled to adapt to I-shaped parts of different sizes without the need to replace the clamping components, making operation convenient and efficient.
[0008] The present invention is further configured such that the hinge assembly includes multiple sets of support rods, each of the eight sets of second sliders has a slide plate at one end, and the other two ends of the eight sets of slide plates are hinged to support rods via hinges. The bottom front and rear ends of the four sets of clamping plates are hinged to the other ends of the two sets of support rods via hinges. The multiple sets of support rods form a linkage structure through the hinges, so that the clamping plates always maintain parallel or symmetrical angles during opening and closing, ensuring uniform contact area with the I-shaped parts and avoiding deformation of the parts caused by excessive local force. It is especially suitable for clamping thin-walled I-shaped parts. The rotation angle of the support rods changes synchronously with the movement of the slide plate, realizing progressive adjustment of the clamping force of the clamping plates, and the clamping force can be flexibly controlled according to the material of the parts.
[0009] The present invention is further configured such that the sliding assembly includes a drive motor, each of the two sets of connecting blocks has a mounting block at its bottom, and each of the two ends of the bottom of the operating platform has a fixing block. Each of the two sets of mounting blocks has a through-hole, and each of the two sets of mounting blocks has a threaded cylinder inside the through-hole. Each of the two sets of threaded cylinders has a connecting screw threadedly connected to it. One end of each of the two sets of connecting screws is rotatably connected to one end of a fixing block. A rotating rod is rotatably mounted in the central area of the bottom of the operating platform. A mounting ring is rotatably mounted on the top outer side of the rotating rod. The opposite ends of each of the two sets of connecting screws are rotatably connected to one end of the mounting ring. A driven gear is mounted on one outer end of each of the two sets of connecting screws. A driving gear is mounted on the bottom outer side of the rotating rod. Both ends of the driving gear are connected to a set of driven gears. The bottom of the wheel is engaged with the rotating rod, which is connected to the top output end of the drive motor. A mounting bracket is provided on the outside of the drive motor, and the top of the mounting block is connected to the bottom of the operating table. The drive motor achieves automatic adjustment of the mounting plate spacing through gear transmission and screw structure, replacing the traditional method of manually pushing or tightening bolts, which greatly reduces the labor intensity of the workers. The meshing transmission of the driving gear and two sets of driven gears ensures that the two sets of connecting screws rotate synchronously in opposite directions, making the mounting plate spacing adjustment symmetrical and accurate. This avoids part positioning offset caused by asynchronous movement on both sides, improves welding accuracy, and the threaded cylinder and connecting screw have a self-locking function. After adjustment, no additional fixing is required to maintain a stable spacing, preventing spacing changes caused by vibration during welding.
[0010] The present invention is further provided with a sponge pad at one end of each of the four sets of clamps; the flexible contact of the sponge pad avoids surface scratches or deformation caused by rigid collision between the clamp and the part, which is especially suitable for I-shaped parts with high surface precision requirements, and protects the appearance quality of the parts.
[0011] The present invention is further configured such that the front ends of both sets of bidirectional screws pass through the front ends of the corresponding fixed plate working chambers and are provided with rotating handles; this increases the operating lever arm of the bidirectional screws, allowing workers to easily rotate the screws without the aid of tools.
[0012] (III) Beneficial Effects Compared with the prior art, the present invention provides a welding device for automotive parts, which has the following advantages: 1. The adjustment mechanism drives the clamping plate for precise clamping, which can adapt to I-beam parts with different flange widths and web thicknesses. It can fix multiple specifications of parts without changing the fixture, reducing changeover time and improving production efficiency. The baffle provides a positioning reference for the parts, ensuring that the two sets of parts are placed neatly, avoiding welding misalignment caused by positional deviation during welding, and improving welding accuracy. The tight contact between the clamping plate and the parts ensures that the parts do not wobble during welding, reducing welding deformation and improving product quality stability. The overall structure combines adjustment flexibility and fixation reliability to meet the welding needs of diverse I-beam parts.
[0013] 2. The drive motor achieves automated adjustment of the mounting plate spacing through gear transmission and screw structure, replacing the traditional method of manually pushing or tightening bolts, greatly reducing the labor intensity of workers. The meshing transmission of the drive gear and two sets of driven gears ensures that the two sets of connecting screws rotate synchronously in opposite directions, making the mounting plate spacing adjustment symmetrical and precise, avoiding part positioning offset caused by asynchronous movement on both sides, and improving welding accuracy. The threaded cylinder and connecting screw have a self-locking function, and the spacing can be kept stable without additional fixing after adjustment, preventing spacing changes caused by vibration during welding. Attached Figure Description
[0014] Figure 1 This is a three-dimensional structural diagram of a welding device for automotive parts according to the present invention; Figure 2 This is a three-dimensional structural diagram of a welding device for automotive parts under the processing state according to the present invention. Figure 3 This is a three-dimensional schematic diagram of the bottom structure of a welding device for automotive parts according to the present invention; Figure 4 This is a three-dimensional structural diagram showing the connection relationship between the connecting screw, rotating rod, drive motor, threaded cylinder, and mounting block of this utility model. Figure 5 This is a three-dimensional structural diagram showing the connection relationship between the bidirectional screw, the first slider, the second slider, the support rod, and the clamping plate of this utility model.
[0015] In the diagram: 1. Operating table; 2. Welding assembly; 3. Connecting block; 4. Mounting plate; 5. Connecting plate; 6. Fixing plate; 7. Clamping plate; 8. Baffle; 9. Bidirectional screw; 10. First slider; 11. Second slider; 12. Support rod; 13. Slide plate; 14. Drive motor; 15. Mounting block; 16. Fixing block; 17. Threaded cylinder; 18. Connecting screw; 19. Rotating rod; 20. Drive gear; 21. Driven gear; 22. Mounting ring; 23. Mounting bracket; 24. Sponge pad; 25. Rotating handle. Detailed Implementation
[0016] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.
[0017] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.
[0018] In this utility model, unless otherwise stated, the orientations used, such as "up" and "down", usually refer to the direction shown in the accompanying drawings, or to the vertical, perpendicular, or gravitational direction; similarly, for ease of understanding and description, "left" and "right" usually refer to the left and right shown in the accompanying drawings; "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not used to limit this utility model.
[0019] Please see Figure 1-5 A welding device for automotive parts includes an operating table 1, a welding assembly 2 at the top rear end of the operating table 1, sliding holes at both ends of the top of the operating table 1, connecting blocks 3 slidably disposed in the sliding holes of the two sets of operating table 1, sliding assemblies at the bottom of the two sets of connecting blocks 3, mounting plates 4 at the top of the two sets of connecting blocks 3, connecting plates 5 at opposite ends of the mounting plates 4, fixing plates 6 at opposite ends of the two sets of connecting plates 5, adjusting mechanisms at the top and bottom of the two sets of fixing plates 6, and clamping plates 7 respectively disposed at the top and bottom of the two sets of fixing plates 6 through the adjusting mechanisms, and a baffle 8 at the top rear end of the operating table 1.
[0020] In this embodiment, when welding I-shaped parts, the operator places two sets of I-shaped components to be welded side by side on the top of the operating table 1, positioning the rear end of the component tightly against the front end of the baffle 8. The sliding assembly is activated, causing the two sets of connecting blocks 3 to slide within the sliding holes of the operating table 1. The mounting plate 4, connecting plate 5, and fixing plate 6 on the top of the connecting blocks 3 move together until the four sets of clamping plates 7 on the two sets of fixing plates 6 are inserted into the inner sides of both ends of the I-shaped component. The adjustment mechanism is operated to drive the four sets of clamping plates 7 towards the component until the clamping plates 7 are in close contact with the flanges of the I-shaped component, completing the clamping and fixing. After fixing, the welding assembly 2 at the rear end of the top of the operating table 1 performs welding operations on the connection of the component. After welding is completed, the adjustment mechanism is operated in reverse to release the clamping plates 7, the sliding assembly drives the mounting plate 4 to reset, and the component can be removed.
[0021] More specifically, when adjusting the spacing of the mounting plates 4, the drive motor 14 is started, and its top output end drives the rotating rod 19 to rotate. The drive gear 20 on the outside of the rotating rod 19 rotates synchronously, and the two sets of driven gears 21 meshing with the drive gear 20 rotate in the opposite direction. The driven gears 21 drive the connecting screw 18 to rotate at one end of the fixed block 16. The connecting screw 18 is threadedly engaged with the threaded cylinder 17 in the mounting block 15, pushing the two sets of mounting blocks 15 to slide along the bottom of the operating table 1. The connecting block 3 on the top of the mounting block 15 slides synchronously in the sliding hole of the operating table 1, thereby driving the mounting plate 4, the connecting plate 5 and the fixed plate 6 to move as a whole.
[0022] Please see Figure 1 and Figure 4As one implementation of the adjustment mechanism: the adjustment mechanism includes two sets of bidirectional screws 9, two sets of fixed plates 6 are provided with working cavities, and bidirectional screws 9 are rotatably arranged in the working cavities of the two sets of fixed plates 6. The front and rear sides of the two sets of bidirectional screws 9 are threadedly connected to the first sliders 10, and the four sets of first sliders 10 are slidably connected to one end of the corresponding working cavity of the fixed plate 6. The top and bottom of the working cavities of the two sets of fixed plates 6 are provided with sliding holes, and the front and rear ends of the sliding holes of the four sets of fixed plates 6 are slidably arranged with second sliders 11, and the two ends of the four sets of first sliders 10 are respectively connected to one end of the corresponding second sliders 11. The other end of the eight sets of second sliders 11 is provided with a hinge assembly, and one end of the eight sets of second sliders 11 is connected to one end of the corresponding clamping plate 7 through the hinge assembly.
[0023] Specifically, when adjusting the clamping plate 7 to hold the part, rotating the bidirectional screw 9 causes the first slider 10 at its front and rear ends to slide within the working cavity of the fixed plate 6. The second slider 11 connected to both ends of the first slider 10 slides together within the sliding hole of the working cavity of the fixed plate 6. The eight sets of second sliders 11 drive the four sets of clamping plates 7 to move synchronously through the hinge assembly. When the first sliders 10 approach each other, the second sliders 11 push the hinge assembly to unfold, and the clamping plate 7 moves towards the part and gradually clamps it. When the first sliders 10 move away from each other, the second sliders 11 pull the hinge assembly to retract, and the clamping plate 7 moves away from the part and is released. Throughout the process, the first sliders 10 and the second sliders 11 always slide along the working cavity and sliding hole of the fixed plate 6 to ensure a stable adjustment trajectory.
[0024] Please refer to Figures 2-4 As a further embodiment of the adjustment mechanism: the hinge assembly includes multiple sets of support rods 12, each of the eight sets of second sliders 11 has a slide plate 13 at one end, and the other two sides of the eight sets of slide plates 13 are hinged to support rods 12 by hinge members, and the bottom front and rear ends of the four sets of clamping plates 7 are hinged to the other ends of the two sets of support rods 12 by hinge members.
[0025] Specifically, when the second slider 11 slides, the slide plate 13 at one end moves synchronously with it. The support rods 12 on both sides of the other end of the slide plate 13 rotate through the hinge. When the slide plate 13 moves towards the part, the support rods 12 expand outward around the hinge, pushing the clamping plate 7 to flip and fit towards the part. When the slide plate 13 moves away from the part, the support rods 12 retract inward, pulling the clamping plate 7 to flip in the opposite direction and detach from the part. The two ends of the support rods 12 are always connected to the slide plate 13 and the clamping plate 7 through the hinge, ensuring a smooth transmission of force and making the opening and closing action of the clamping plate 7 continuous and uniform.
[0026] In summary, the overall equipment is in use (or running): The workers placed two sets of I-shaped parts to be welded side by side on the top of the operating table 1, positioning the rear end of the parts tightly against the front end of the baffle 8. The drive motor 14 was started, and the rotating rod 19 drove the drive gear 20 to rotate. The two sets of driven gears 21 meshing with the drive gear 20 rotated in opposite directions. The connecting screw 18 rotated on the fixed block 16 along with the driven gears 21. The threaded cylinder 17 in the mounting block 15 cooperated with the connecting screw 18, pushing the connecting block 3 to slide in the sliding hole of the operating table 1. The mounting plate 4, the connecting plate 5, and the fixed plate 6 moved with the connecting block 3 until the four sets of clamping plates 7 were inserted into the inner sides of both ends of the I-shaped parts.
[0027] Hold the rotating handle 25 and rotate the bidirectional screw 9. The first slider 10 slides in the working cavity of the fixed plate 6, which drives the second slider 11 to move along the sliding hole. The slide plate 13 moves with the second slider 11, causing the support rod 12 to rotate through the hinge, pushing the clamping plate 7 closer to the part. The sponge pad 24 at one end of the clamping plate 7 is in contact with the surface of the I-shaped part, completing the clamping and fixing.
[0028] Start the welding assembly 2 at the top rear end of the operating table 1 to weld the joints of the parts; after completion, rotate the bidirectional screw 9 in the opposite direction to loosen the clamp 7, drive the motor 14 to reverse and drive each component to reset, and then remove the welded parts.
[0029] Of all the solutions mentioned above, those involving the connection between two components can be selected according to the actual situation, such as welding, bolt and nut connection, bolt or screw connection, or other known connection methods, which will not be elaborated here. For all the fixed connections mentioned above, welding is preferred. Although embodiments of this utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this utility model. The scope of this utility model is defined by the appended claims and their equivalents.
Claims
1. A welding apparatus for automotive parts, comprising an operating table (1), wherein a welding assembly (2) is provided at the rear end of the top of the operating table (1), characterized in that: The top two ends of the operating table (1) are provided with sliding holes. Connecting blocks (3) are slidably arranged in the sliding holes of the two sets of operating tables (1). Sliding components are provided at the bottom of the two sets of connecting blocks (3). Mounting plates (4) are provided at the top of the two sets of connecting blocks (3). Connecting plates (5) are provided at opposite ends of the mounting plates (4). Fixing plates (6) are provided at opposite ends of the two sets of connecting plates (5). Adjustment mechanisms are provided at the top and bottom of the two sets of fixing plates (6). Clamping plates (7) are provided at the top and bottom of the two sets of fixing plates (6) respectively through the adjustment mechanisms. A baffle (8) is provided at the rear end of the top of the operating table (1).
2. The welding apparatus for automotive parts according to claim 1, characterized in that: The adjustment mechanism includes two sets of bidirectional screws (9), both sets of fixed plates (6) are provided with working cavities, and bidirectional screws (9) are rotatably provided in the working cavities of both sets of fixed plates (6). The front and rear sides of the two sets of bidirectional screws (9) are threadedly connected to first sliders (10), and the four sets of first sliders (10) are slidably connected to one end of the working cavity of the corresponding fixed plate (6). The top and bottom of the working cavities of both sets of fixed plates (6) are provided with sliding holes. The front and rear ends of the sliding holes of the working cavities of the four sets of fixed plates (6) are slidably provided with second sliders (11), and the two ends of the four sets of first sliders (10) are respectively connected to one end of the corresponding second sliders (11). The other end of the eight sets of second sliders (11) is provided with a hinge assembly, and one end of the eight sets of second sliders (11) is connected to one end of the corresponding clamping plate (7) through the hinge assembly.
3. The welding apparatus for automotive parts according to claim 2, characterized in that: The hinge assembly includes multiple sets of support rods (12), and each of the eight sets of second sliders (11) is provided with a slide plate (13) at one end. The other ends of the eight sets of slide plates (13) are hinged to support rods (12) on both sides through hinges. The bottom front and rear ends of the four sets of clamps (7) are hinged to the other ends of the two sets of support rods (12) through hinges.
4. The welding apparatus for automotive parts according to claim 1, characterized in that: The sliding assembly includes a drive motor (14), and mounting blocks (15) are provided at the bottom of both sets of connecting blocks (3). Fixing blocks (16) are provided at both ends of the bottom of the operating table (1). The two sets of mounting blocks (15) are provided with reserved holes through the bottom. Threaded cylinders (17) are provided in the reserved holes of the two sets of mounting blocks (15). Connecting screws (18) are threaded into the two sets of threaded cylinders (17). One end of each set of connecting screws (18) is rotatably connected to one end of the fixing block (16). A rotating rod (19) is rotatably provided in the central area of the bottom of the operating table (1). The rotating rod (19) is externally... A mounting ring (22) is rotatably provided on the top side. The two sets of connecting screws (18) are rotatably connected to one end of the mounting ring (22) at opposite ends. A driven gear (21) is provided on the outer end of each of the two sets of connecting screws (18). A driving gear (20) is provided on the bottom of the outer side of the rotating rod (19). Both ends of the driving gear (20) are meshed with the bottom of a set of driven gears (21). The bottom of the rotating rod (19) is connected to the top output end of the drive motor (14). A mounting bracket (23) is provided on the outer side of the drive motor (14). The top of the mounting block (15) is connected to the bottom of the operating table (1).
5. The welding device for automotive parts according to claim 1, characterized in that: four sets Each of the clamps (7) has a sponge pad (24) at one end.
6. The welding apparatus for automotive parts according to claim 2, characterized in that: Both sets of bidirectional screws (9) have their front ends passing through the front end of the working cavity of the corresponding fixed plate (6) and are equipped with rotating handles (25).