Automobile seat frame welding device facilitating assembly

Abstract

This utility model provides an easy-to-assemble automotive seat frame welding device, relating to the field of automotive seats. It includes a work platform, on which an industrial spot welding machine is fixedly mounted. A welding plate is slidably connected to the top surface of the work platform, and two sets of fixing mechanisms are provided on the top surface of the welding plate. A moving mechanism for driving the welding plate is provided inside the work platform. This application, by setting up components such as an industrial spot welding machine, a welding plate, fixing mechanisms, and a moving mechanism, allows the welding plate to be fixedly clamped by the fixing mechanisms, preventing the frame from moving during welding and affecting welding accuracy. The moving mechanism drives the welding plate to move at multiple angles on the work platform, allowing the welding plate to adjust the welding position of the component. This facilitates welding operations at various positions of the frame, effectively avoiding welding dead angles and improving the quality and efficiency of the welding operation.

Description

Technical Field

[0001] This utility model relates to a frame welding device, specifically a car seat frame welding device that is easy to assemble, and belongs to the field of car seat technology. Background Technology

[0002] The car seat frame is the core load-bearing structure of the seat, made of high-strength metal materials (such as steel and magnesium-aluminum alloys) through welding or stamping processes. It mainly consists of three parts: the seat cushion frame, the backrest frame, and the headrest support. Seat frame welding is a key process to ensure the safety and stability of the seat structure. Currently, mainstream technologies include laser welding, resistance spot welding, and friction stir welding, each with its own advantages and often used in combination. In existing industrial welding processes, spot welding machines are mostly used for automated welding. During the welding process, the welded parts need to be fixed to improve welding precision.

[0003] According to patent CN220921328U, a welding fixture for the frame of an automobile seat is disclosed, including a base and a welding robot mounted on the base. The base is equipped with a clamping mechanism for clamping the frame. The clamping mechanism includes a first clamping component and a second clamping component arranged at intervals. The two ends of the first crossbar are a first detection position and a second detection position, respectively.

[0004] The above-mentioned solution can detect the bushing installation status before the frame welding process, thereby improving the yield rate of frame welding. However, the above-mentioned solution is not convenient for the clamping frame to move in all directions during the implementation process, which can easily lead to welding dead angles, thus affecting the quality and efficiency of the welding operation. To this end, we provide an easy-to-assemble automotive seat frame welding device to solve the above problems. Utility Model Content

[0005] The purpose of this invention is to provide an easy-to-assemble automotive seat frame welding device to solve the above-mentioned problems, thereby addressing the issue that in the prior art, it is inconvenient to move the frame in all directions when welding automotive seat frames, which easily leads to incomplete welding in some areas.

[0006] This utility model is achieved through the following technical solution: a welding device for an easy-to-assemble automotive seat frame, comprising a working platform, an industrial spot welding machine fixedly installed on the top surface of the working platform, a welding plate slidably connected to the top surface of the working platform, two sets of fixing mechanisms provided on the top surface of the welding plate, and a moving mechanism for driving the welding plate to move inside the working platform, the moving mechanism comprising a transmission column and two driving screws, the transmission column meshing with the two driving screws, a driven disc fixedly connected to the top surface of the transmission column, and a support block rotatably connected to the outer surface of the transmission column.

[0007] Preferably, limit strips are fixedly connected to both sides of the support block, and a limit groove is slidably connected to the outside of each limit strip, the limit groove serving to limit the support block.

[0008] Preferably, the top surface of the support block is fixedly connected to two support grooves, and the top surface of the support block is slidably connected to a movable frame. The driven disk engages with the movable frame, and the two ends of the movable frame are slidably connected to the two support grooves respectively. The driven disk drives the movable frame to move.

[0009] Preferably, a fixing plate is fixedly connected to the top surface of the movable frame, and the fixing plate is fixedly connected to the welding plate, the fixing plate serving to connect and drive the welding plate to move.

[0010] Preferably, the working platform is internally fixedly connected with two sets of support plates. Both ends of each drive screw are rotatably connected to the support plate, and both ends of each limiting groove are fixedly connected to the support plate. The support plate provides stable support for the use of the drive screw and the limiting groove.

[0011] Preferably, each set of support plates is fixedly mounted with a servo motor on its exterior, and the two drive screws are respectively fixedly connected to the output shafts of the two servo motors, with the servo motors providing power for the rotation of the drive screws.

[0012] Preferably, the fixing mechanism includes a clamping groove that slides on the top surface of the welding plate. The top surface of the clamping groove is threaded with two reinforcing bolts. The bottom surface of each clamping groove is fixedly connected with a slider. Each slider slides inside the welding plate. The clamping groove and the reinforcing bolts serve to clamp and fix the welded parts.

[0013] Preferably, the fixing mechanism further includes a bidirectional screw that rotates inside the welding plate. The bidirectional screw passes through the slider and is threadedly connected to the slider. A control knob is fixedly connected to the end of the bidirectional screw. The bidirectional screw serves to adjust the relative position of the two clamping slots.

[0014] This utility model provides a welding device for automobile seat frames that is easy to assemble, and its beneficial effects are as follows:

[0015] 1. This application incorporates components such as an industrial spot welding machine, a welding plate, a fixing mechanism, and a moving mechanism. The welding plate can be fixed and clamped by the fixing mechanism to prevent the frame from moving during the welding process and affecting the welding accuracy. The moving mechanism drives the welding plate to move at multiple angles on the work platform, thereby allowing the welding plate to adjust the welding position of the welding part. This facilitates the device to perform welding operations on various positions of the frame, effectively avoiding welding dead angles and improving the quality and efficiency of the welding operation.

[0016] 2. This application, through the arrangement of components such as transmission column, drive screw, moving frame and fixed plate, can drive the transmission column to move laterally when the two drive screws rotate in the same direction, and can drive the transmission column to rotate through meshing when the two drive screws rotate in opposite directions. The rotation of the transmission column can drive the welding plate to move longitudinally through the driven plate and moving frame, thereby facilitating the adjustment of the position of the welded parts and improving the applicability of the device. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a partial structural schematic diagram of the present invention;

[0019] Figure 3 This is a cross-sectional view of the fixing mechanism of this utility model;

[0020] Figure 4 This is a schematic diagram of the structure of the moving mechanism of this utility model;

[0021] Figure 5 This is an exploded view of part of the structure of the moving mechanism of this utility model.

[0022] [Explanation of Key Component Symbols]

[0023] 1. Working platform; 2. Industrial spot welding machine; 3. Welding plate;

[0024] 4. Fixing mechanism; 401. Clamping groove; 402. Reinforcing bolt; 403. Slider; 404. Double-acting screw; 405. Control knob;

[0025] 5. Moving mechanism; 501. Transmission column; 502. Drive screw; 503. Driven plate; 504. Support block; 505. Limiting strip; 506. Limiting groove; 507. Supporting groove; 508. Moving frame; 509. Fixing plate; 510. Supporting plate; 511. Servo motor. Detailed Implementation

[0026] This utility model provides a welding device for automobile seat frames that is easy to assemble.

[0027] Please see Figure 1The device includes a working platform 1, which provides support for the installation and use of the device, facilitating the stable use of other components. Most car seat frames are prefabricated, meaning the frame is first welded into shape, then the seat frame is fitted with a leather cover, and finally the seat is assembled onto the car. This method has the advantage of being easy to assemble and reduces the inconvenience caused by on-site welding during car assembly. The structural components shown in the accompanying drawings of this application are all illustrative examples. Their specific implementation should be adapted and optimized based on the functional requirements, assembly conditions, and process limitations in the actual application scenario, including the structural parameters, dimensions, and connection methods.

[0028] Please see Figure 1 and Figure 2 An industrial spot welding machine 2 is fixedly installed on the top surface of the work platform 1. The industrial spot welding machine 2 is an existing technology that can generate heat by using the contact resistance when current passes through the metal contact point to melt the welding parts and achieve a rapid welding effect. Compared with manual welding by workers, the industrial spot welding machine 2 has the advantages of precision and speed, and can greatly reduce the workload of welding personnel and reduce the damage to the human body caused by welding operations. When the industrial spot welding machine 2 is running, it can drive the welding gun head to rise and fall through the cylinder, thereby welding the welding parts fixed on the welding plate 3.

[0029] The top surface of the work platform 1 is slidably connected to a welding plate 3. The welding plate 3 is used to support the welding parts and can limit and fix the car seat frame through the fixing mechanism 4. The frame is moved by the moving mechanism 5. Since the cylinder of the industrial spot welding machine 2 can only drive the welding gun to move up and down in the vertical direction and can only weld a certain position of the welding parts, it is also necessary to adjust the position of the welding parts by moving the welding plate 3 to realize multi-position welding operations on the welding parts, avoid welding dead corners, and improve welding quality.

[0030] Please see Figure 1 , Figure 2 and Figure 3 The top surface of the welding plate 3 is provided with two sets of fixing mechanisms 4. The fixing mechanism 4 includes a clamping groove 401 that slides on the top surface of the welding plate 3. The top surface of the clamping groove 401 is threaded with two reinforcing bolts 402. The fixing mechanism 4 is used to clamp and fix the welded skeleton. When in use, the operator first adjusts the position of the two clamping grooves 401, then puts both ends of the welded part into the clamping groove 401, and then rotates the reinforcing bolts 402 to clamp and fix the welded part, so as to prevent the skeleton from moving during the welding process and affecting the welding accuracy.

[0031] Each clamping groove 401 has a slider 403 fixedly connected to its bottom surface. Each slider 403 slides inside the welding plate 3. The slider 403 provides a limiting and supporting effect for the sliding of the clamping groove 401 on the top surface of the welding plate 3, and also provides power support for the movement of the clamping groove 401. During the movement of the slider 403, the welding plate 3 will limit it to prevent the slider 403 from tilting and ensure the stable sliding of the clamping groove 401.

[0032] The fixing mechanism 4 also includes a bidirectional screw 404 that rotates inside the welding plate 3. The bidirectional screw 404 passes through the slider 403 and is threadedly connected to the slider 403. A control knob 405 is fixedly connected to the end of the bidirectional screw 404. When it is necessary to adjust the relative position of the two clamping slots 401, the operator rotates the control knob 405. The rotation of the control knob 405 drives the bidirectional screw 404 to rotate inside the welding plate 3. The two ends of the bidirectional screw 404 have threads in opposite directions. The rotation of the bidirectional screw 404 can drive the two sliders 403 to slide towards each other through the threads, thereby adjusting the position of the two clamping slots 401. The bidirectional screw 404 has a large coefficient of friction with the welding plate 3. It can ensure that the bidirectional screw 404 is stable inside the welding plate 3 without external force through friction, and avoid the bidirectional screw 404 rotating on its own, which would affect the clamping accuracy of the clamping slots 401 on the welded parts.

[0033] Please see Figure 2 , Figure 4 and Figure 5 The working platform 1 is equipped with a moving mechanism 5 that drives the welding plate 3 to move. The moving mechanism 5 includes a transmission column 501 and two driving screws 502. The transmission column 501 meshes with the two driving screws 502. When the two driving screws 502 rotate in the same direction, they can drive the transmission column 501 to move laterally. When the two driving screws 502 rotate in opposite directions, they can drive the transmission column 501 to rotate through meshing. The rotation of the transmission column 501 can drive the welding plate 3 to move longitudinally through the driven plate 503 and the moving frame 508, thereby facilitating the adjustment of the position of the welded parts.

[0034] The working platform 1 has two sets of support plates 510 fixedly connected inside. Both ends of each drive screw 502 are rotatably connected to the support plate 510, and both ends of each limiting groove 506 are fixedly connected to the support plate 510. A servo motor 511 is fixedly installed on the outside of each set of support plates 510. The two drive screws 502 are respectively fixedly connected to the output shafts of the two servo motors 511. The servo motor 511 is existing technology and will not be described in detail in this application. The operator controls the rotation of the two drive screws 502 by controlling the forward and reverse rotation of the two servo motors 511, thereby providing power for the all-round movement of the welding plate 3. The support plate 510 provides stable support for the use of the limiting groove 506 and the drive screw 502, which improves the transmission stability of the moving mechanism 5. During installation, the operator can electrically connect the two servo motors 511 to the control system of the industrial spot welding machine 2, so that the industrial spot welding machine 2 can control the servo motors 511 to operate with different parameters according to different welding positions, thereby realizing the automated operation of the device welding seat frame and improving welding efficiency.

[0035] A driven disc 503 is fixedly connected to the top surface of the transmission column 501, and a support block 504 is rotatably connected to the outer surface of the transmission column 501. Limiting strips 505 are fixedly connected to both sides of the support block 504, and a limiting groove 506 is slidably connected to the outside of each limiting strip 505. When the two drive screws 502 rotate in the same direction, the transmission column 501 will move laterally under the clamping of the drive screws 502. At this time, the transmission column 501 can drive the support block 504 to move laterally. The support block 504 drives the moving frame 508 and the fixed plate 509 to move laterally through the support groove 507, thereby driving the welding plate 3 to move laterally on the top surface of the working platform 1.

[0036] Two support grooves 507 are fixedly connected to the top surface of the support block 504. A movable frame 508 is slidably connected to the top surface of the support block 504. The driven disk 503 meshes with the movable frame 508. The interior of the movable frame 508 has teeth that are compatible with the driven disk 503. Both ends of the movable frame 508 are slidably connected to the two support grooves 507 respectively. A fixing plate 509 is fixedly connected to the top surface of the movable frame 508. The fixing plate 509 is fixedly connected to the welding plate 3. When the two drive screws 502 rotate in opposite directions, they can drive the transmission column 501 to rotate in place through meshing. When the drive column 501 rotates, the support block 504 will not move. The rotation of the drive column 501 can drive the driven disc 503 to rotate. Under the meshing effect, the rotation of the driven disc 503 can drive the moving frame 508 to move longitudinally. The movement of the moving frame 508 can drive the welding plate 3 to move longitudinally on the top surface of the working platform 1 through the fixed plate 509. This allows the welding plate 3 to adjust the welding position of the welded parts fixed on it, making it convenient for the device to perform welding operations on various positions of the frame, effectively avoiding the occurrence of welding dead corners, and improving the quality and efficiency of welding operations.

[0037] Working Principle: During operation, the operator first places the car seat frame to be welded on the welding plate 3. Then, by rotating the control knob 405, the position of the two clamping slots 401 is adjusted. Rotating the control knob 405 drives the bidirectional screw 404 to rotate, which in turn moves the two sliders 403 towards each other, causing the two clamping slots 401 to move closer together and clamp the frame to be welded. The operator then rotates the reinforcing bolt 402, which provides a secondary clamping of the welded part. The industrial spot welding machine 2 is then started to weld the clamped frame. When the welding position changes, the industrial spot welding machine 2 controls the two servo motors 511 to start, and the servo motors 511 drive... When the two drive screws 502 rotate in the same direction, they can clamp the transmission column 501 and drive the transmission column 501 to move horizontally. The movement of the transmission column 501 can drive the welding plate 3 to move laterally on the working platform 1 through the support block 504, support groove 507, moving frame 508 and fixed plate 509. When the two drive screws 502 rotate in opposite directions, they can drive the transmission column 501 to rotate in place. The rotation of the transmission column 501 can drive the driven plate 503 to rotate. The rotation of the driven plate 503 can drive the moving frame 508 to move longitudinally in the support groove 507, thereby driving the welding plate 3 to move. This allows the welding plate 3 to move to various positions on the working platform 1, effectively avoiding the occurrence of welding dead angles.

[0038] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A welding device for an easily assembled automobile seat frame, comprising a work platform (1), characterized in that: An industrial spot welding machine (2) is fixedly installed on the top surface of the work platform (1). A welding plate (3) is slidably connected to the top surface of the work platform (1). Two sets of fixing mechanisms (4) are provided on the top surface of the welding plate (3). A moving mechanism (5) for driving the welding plate (3) to move is provided inside the work platform (1). The moving mechanism (5) includes a transmission column (501) and two drive screws (502). The transmission column (501) meshes with the two drive screws (502). A driven disk (503) is fixedly connected to the top surface of the transmission column (501), and a support block (504) is rotatably connected to the outer surface of the transmission column (501).

2. The automotive seat frame welding device for easy assembly according to claim 1, characterized in that: Both sides of the support block (504) are fixedly connected to limit strips (505), and each limit strip (505) is slidably connected to a limit groove (506).

3. The automotive seat frame welding device for easy assembly according to claim 1, characterized in that: The top surface of the support block (504) is fixedly connected to two support grooves (507), and the top surface of the support block (504) is slidably connected to a moving frame (508). The driven disk (503) meshes with the moving frame (508), and the two ends of the moving frame (508) are slidably connected to the two support grooves (507) respectively.

4. The automotive seat frame welding device for easy assembly according to claim 3, characterized in that: The top surface of the movable frame (508) is fixedly connected to a fixing plate (509), and the fixing plate (509) is fixedly connected to the welding plate (3).

5. The automotive seat frame welding device for easy assembly according to claim 2, characterized in that: The working platform (1) is internally fixedly connected to two sets of support plates (510). Both ends of each drive screw (502) are rotatably connected to the support plate (510), and both ends of each limiting groove (506) are fixedly connected to the support plate (510).

6. A welding apparatus for assembling a seat frame of an automobile, according to claim 5, wherein: Each set of support plates (510) is fixedly mounted with a servo motor (511) on its exterior, and the two drive screws (502) are fixedly connected to the output shafts of the two servo motors (511) respectively.

7. The automotive seat frame welding device for easy assembly according to claim 1, characterized in that: The fixing mechanism (4) includes a clamping groove (401) that slides on the top surface of the welding plate (3). The top surface of the clamping groove (401) is threaded with two reinforcing bolts (402). The bottom surface of each clamping groove (401) is fixedly connected with a slider (403), and each slider (403) slides inside the welding plate (3).

8. The automotive seat frame welding device for easy assembly according to claim 7, characterized in that: The fixing mechanism (4) further includes a bidirectional screw (404) that rotates inside the welding plate (3). The bidirectional screw (404) passes through the slider (403) and is threadedly connected to the slider (403). A control knob (405) is fixedly connected to the end of the bidirectional screw (404).

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