Automobile seat framework welding tool

Abstract

The application belongs to the technical field of welding, and discloses an automobile seat framework welding tool, which comprises a machining table, a framework outer frame, a reinforcing rib, a head connecting frame, the upper surface of the machining table is fixedly connected with a sliding groove rod, the inside of the sliding groove rod is slidably connected with a moving plate, the upper surface of the moving plate is provided with a welding structure, one side of the moving plate is provided with a polishing mechanism, the upper surface of the moving plate is fixedly connected with a moving mechanism, the upper end of the machining table is provided with a clamping mechanism and a pressing mechanism, before welding, the polishing steering arm and the rotating polishing head are arranged to polish the welding surface, after welding is completed, the moving plate moves backward, the welding points after welding are polished again through the polishing steering arm and the rotating polishing head, so that the welding slag, burrs and other defects possibly generated in the welding process are polished and smoothed, and unnecessary troubles caused by subsequent paint spraying are prevented.

Description

Technical Field

[0001] This invention belongs to the field of welding technology, specifically a welding fixture for an automotive seat frame. Background Technology

[0002] Car seats are essential components of automobiles. Car seats can be classified by shape as split seats and bench seats; by function as fixed, removable, and adjustable seats; and by the number of occupants as single, double, and multi-person seats. There are also seats for special purposes, such as child seats and racing seats. Therefore, car seat frame assemblies also have different size requirements. During the production of car seat frames, the various components need to be welded together. Car seat frame welding is a key step in connecting metal parts into the seat frame structure using welding technology. Welding fixtures are needed to fix the components during the welding process.

[0003] Patent CN 112091510 A discloses a welding fixture for an automotive seat back frame, belonging to the field of automotive seat back frame processing. It includes a base, with welding devices symmetrically arranged on the upper surface of the base. A vertical plate is fixed at the middle of the upper surface of the base. A lead screw is rotatably mounted on the upper surface of the base, with a lead screw threaded onto the lead screw. A rectangular hole is opened along the vertical direction on the vertical plate, and a connecting rod is movably arranged within the rectangular hole. One end of the connecting rod is connected to the lead screw, and a movable block is welded to the other end of the connecting rod. A movable plate is welded to the side of the movable block away from the connecting rod, and support blocks are symmetrically fixed on the movable plate. A positioning block is slidably connected to one side wall of the vertical plate. The positioning block has a U-shaped structure, and a clamping block is fixed to the inner surface of the bottom wall of the positioning block. This invention has a novel design and ingenious structure, reducing the labor intensity of workers and ensuring welding accuracy during the welding process.

[0004] This application improves the welding fixture for automotive seat frames by using a structure consisting of a lead screw, lead screw block, connecting rod, movable block, through hole, and support block. The support block supports the steel pipe, and its height is adjustable. This eliminates the need for operators to manually fix the steel pipe, allowing for precise welding of the steel pipe onto the frame. However, some internal reinforcing ribs in seat frames require manual support and fixing during welding, and manual support and grinding are necessary before welding. Displacement is also prone to occur during the welding process. Therefore, we propose a welding fixture for automotive seat frames. Summary of the Invention

[0005] The purpose of this invention is to address the shortcomings of existing technologies by proposing a welding fixture for automotive seat frames, which solves the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a welding fixture for an automotive seat frame, comprising a processing table, a frame outer frame, reinforcing ribs, and a head connector. A sliding rod is fixedly connected to the upper surface of the processing table, and a movable plate is slidably connected inside the sliding rod. A welding structure is provided on the upper surface of the movable plate, and a grinding mechanism is provided on one side of the movable plate. The moving mechanism is fixedly connected to the upper surface of the movable plate. A clamping mechanism and a pressing mechanism are provided at the upper end of the processing table. The welding structure is used to perform circumferential welding around the frame outer frame during the welding process, while the grinding mechanism grinds the welded area. The clamping mechanism is used to fix the reinforcing ribs during welding, thereby preventing shaking during the welding process. Simultaneously, the pressing mechanism is used to fix the frame outer frame, ensuring stable welding of the frame outer frame and reinforcing ribs during the welding process.

[0007] Preferably, the welding structure includes a semi-fixed shaft fixedly connected to the upper surface of the movable plate, a semi-gear rotatably connected to the outer surface of the semi-fixed shaft, a welding frame fixedly connected to the upper surface of the movable plate, a welding motor fixedly connected inside the welding frame, a welding gear fixedly connected to the output shaft of the welding motor, a rotating table rotatably connected to the upper surface of the movable plate, a welding steering arm rotatably connected to the upper end of the rotating table, and a welding head rotatably connected to the top end of the welding steering arm.

[0008] Preferably, a grinding steering arm is rotatably connected to one side of the movable plate, a rotating grinding head is rotatably connected to the top of the grinding steering arm, the half gear is meshed with the welding gear, and the half fixed shaft and the half gear are both one-third circle.

[0009] Preferably, a movable motor is fixedly connected inside the processing table, a movable threaded rod is fixedly connected to the output shaft of the movable motor, a movable block is threadedly connected to the outer surface of the movable threaded rod, a lifting hydraulic rod is fixedly connected to the upper surface of the movable block, a fixed hydraulic rod is fixedly connected to the upper surface of the processing table, and a movable fixing plate is fixedly connected to one end of the fixed hydraulic rod.

[0010] Preferably, a fixed platform is fixedly connected to the upper end of the lifting hydraulic rod, and a first rotating pressure rod and a second rotating pressure rod are rotatably connected inside the fixed platform. A first clamping gear is fixedly connected to the bottom end of the first rotating pressure rod, and a clamping frame is fixedly connected to the lower surface of the fixed platform. A clamping motor is fixedly connected inside the clamping frame, and a second clamping gear is fixedly connected to the output shaft of the clamping motor. A first transmission belt is driven to the outer surface of the first rotating pressure rod, and a second transmission belt is driven to the outer surface of the second rotating pressure rod.

[0011] Preferably, the first rotating pressure rod and the second rotating pressure rod are connected by a first transmission belt, the first clamping gear and the second clamping gear are meshed, the moving block is slidably connected inside the processing table, and the moving fixed plate is inserted into the head connecting frame.

[0012] Preferably, the clamping mechanism includes a limiting groove rod and an adapter top block fixedly connected to the upper surface of the processing table. A lifting threaded rod is rotatably connected to the upper surface of the processing table. A lifting rod is threadedly connected to the outer surface of the lifting threaded rod. A third rotating pressure rod is rotatably connected to the upper surface of the lifting rod. The skeleton frame is placed above the adapter top block and is adapted to the adapter top block. The lifting rod slides inside the limiting groove rod.

[0013] Preferably, the moving mechanism includes a power motor fixedly connected to the upper surface of the moving plate, a transmission rod being drivenly connected to the output shaft of the power motor, a moving wheel being rotatably connected to the lower end of the moving plate, and the transmission rod being drivenly connected to the moving wheel.

[0014] Preferably, a dust suction port is provided at one end of the processing table, and a fixed frame is fixedly connected to the upper surface of the end of the processing table away from the dust suction port, and a powerful fan is fixedly connected inside the fixed frame.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0016] 1. The present invention can clamp the head connecting frame, the outer frame of the skeleton, and the reinforcing ribs through the clamping and pressing mechanisms. When the outer frame of the skeleton is placed above the adapting top block, the clamping mechanism clamps and fixes the outer frame of the skeleton. At the same time, after the reinforcing rib is placed above the fixing platform, the first rotating pressure rod rotates and the lifting hydraulic rod pulls down to fix the reinforcing rib, thereby ensuring the stability of the outer frame of the skeleton and the reinforcing rib during the welding process.

[0017] 2. This invention uses a welding structure to weld the fixed outer frame and reinforcing ribs. During the welding process, the moving plate is driven forward by a power motor, while the welding motor starts and drives the welding gear and half gear to rotate, thereby driving the welding head to weld the welding points on both sides of the outer frame. Before welding, the welding surface is polished by a polishing steering arm and a rotating polishing head. After welding is completed, the moving plate moves backward, and the welded points are polished again by the polishing steering arm and the rotating polishing head, thereby smoothing out defects such as weld slag and burrs that may be generated during the welding process, preventing unnecessary trouble during subsequent painting. Attached Figure Description

[0018] Figure 1 This is the front view of the present invention;

[0019] Figure 2For the present invention Figure 1 A magnified view of A;

[0020] Figure 3 This is a folding diagram of the present invention;

[0021] Figure 4 For the present invention Figure 3 Enlarged view of point B;

[0022] Figure 5 This is a schematic diagram of the bottom support mechanism of the present invention;

[0023] Figure 6 For the present invention Figure 5 C is shown in the enlarged image;

[0024] Figure 7 This is a side sectional view of the present invention;

[0025] Figure 8 This is a cross-sectional view of the present invention.

[0026] In the diagram: 1. Machining table; 2. Welding structure; 201. Semi-fixed shaft; 202. Semi-gear; 203. Welding frame; 204. Welding motor; 205. Welding gear; 206. Rotary table; 207. Welding steering arm; 208. Welding head; 3. Grinding mechanism; 301. Grinding steering arm; 302. Rotating grinding head; 4. Clamping mechanism; 401. Fixed table; 402. First rotating pressure rod; 403. First clamping gear; 404. First transmission belt; 405. Second rotating pressure rod; 406. Second transmission belt; 407. Clamping frame; 408. Clamping motor; 409. 410. Second clamping gear; 412. Fixed hydraulic rod; 413. Movable fixed plate; 5. Pressing mechanism; 501. Limiting groove rod; 502. Lifting threaded rod; 503. Lifting rod; 504. Third rotating pressure rod; 505. Adaptive top block; 6. Moving mechanism; 601. Transmission rod; 602. Moving wheel; 603. Power motor; 7. Outer frame; 8. Reinforcing rib; 9. Head connecting frame; 10. Slide rod; 11. Moving plate; 12. Dust suction port; 13. Fixed frame; 14. Powerful fan; 15. Moving motor; 16. Moving threaded rod; 17. Moving block; 18. Lifting hydraulic rod. Detailed Implementation

[0027] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0028] like Figures 1-8The illustrated automotive seat frame welding fixture includes a processing table 1, a frame outer frame 7, reinforcing ribs 8, and a head connector 9. A sliding rod 10 is fixedly connected to the upper surface of the processing table 1, and a movable plate 11 is slidably connected inside the sliding rod 10. A welding structure 2 is provided on the upper surface of the movable plate 11, a grinding mechanism 3 is provided on one side of the movable plate 11, and a moving mechanism 6 is fixedly connected to the upper surface of the movable plate 11. A clamping mechanism 4 and a pressing mechanism 5 are provided at the upper end of the processing table 1.

[0029] The welding structure 2 is used to perform circumferential welding around the outer frame 7 of the skeleton during the welding process. At the same time, the grinding mechanism 3 is used to grind the welding part. The clamping mechanism 4 is used to fix the reinforcing rib 8 during welding, so as to prevent shaking during the welding process. Meanwhile, the pressing mechanism 5 is used to fix the outer frame 7 of the skeleton, so that the outer frame 7 of the skeleton and the reinforcing rib 8 are welded stably during the welding process.

[0030] The welding structure 2 includes a semi-fixed shaft 201 fixedly connected to the upper surface of the movable plate 11. A semi-gear 202 is rotatably connected to the outer surface of the semi-fixed shaft 201. A welding frame 203 is fixedly connected to the upper surface of the movable plate 11. A welding motor 204 is fixedly connected inside the welding frame 203. A welding gear 205 is fixedly connected to the output shaft of the welding motor 204. A rotating table 206 is rotatably connected to the upper surface of the movable plate 11. A welding steering arm 207 is rotatably connected to the upper end of the rotating table 206. A welding head 208 is rotatably connected to the top end of the welding steering arm 207. A grinding steering arm 301 is rotatably connected to one side of the movable plate 11. A rotating grinding head 302 is rotatably connected to the top end of the grinding steering arm 301. The semi-gear 202 and the welding gear 205 are meshed. The semi-fixed shaft 201 and the semi-gear 202 are both one-third circles.

[0031] Furthermore, during the welding process, the moving plate 11 is driven forward by the power motor 603, while the welding motor 204 starts and drives the welding gear 205 and half gear 202 to rotate, thereby driving the welding head 208 to weld the welding points on both sides of the outer frame 7. When the half gear 202 rotates, it will drive the welding steering arm 207 and the welding head 208 to move left and right above the outer frame 7. Before welding, the welding surface is ground by the grinding steering arm 301 and the rotating grinding head 302. After welding is completed, the moving plate 11 moves backward, and the weld points are ground again by the grinding steering arm 301 and the rotating grinding head 302, thereby smoothing out defects such as welding slag and burrs that may be generated during the welding process, and preventing unnecessary trouble in subsequent painting.

[0032] A moving motor 15 is fixedly connected inside the processing table 1. A moving threaded rod 16 is fixedly connected to the output shaft of the moving motor 15. A moving block 17 is threadedly connected to the outer surface of the moving threaded rod 16. A lifting hydraulic rod 18 is fixedly connected to the upper surface of the moving block 17. A fixed hydraulic rod 410 is fixedly connected to the upper surface of the processing table 1. A moving fixed plate 412 is fixedly connected to one end of the fixed hydraulic rod 410. A fixed platform 401 is fixedly connected to the upper end of the lifting hydraulic rod 18. A first rotating pressure rod 402 and a second rotating pressure rod 405 are rotatably connected inside the fixed platform 401. A first clamping gear 403 is fixedly connected to the bottom end of the first rotating pressure rod 402. A clamping frame 407 is fixedly connected to the lower surface of 401. A clamping motor 408 is fixedly connected inside the clamping frame 407. A second clamping gear 409 is fixedly connected to the output shaft of the clamping motor 408. A first transmission belt 404 is driven to the outer surface of the first rotating pressure rod 402. A second transmission belt 406 is driven to the outer surface of the second rotating pressure rod 405. The first rotating pressure rod 402 and the second rotating pressure rod 405 are driven to be connected through the first transmission belt 404. The first clamping gear 403 and the second clamping gear 409 are meshed together. The moving block 17 is slidably connected inside the processing table 1. The moving fixed plate 412 is inserted into the inside of the head connecting frame 9.

[0033] Furthermore, after the outer frame 7 is placed above the adapter top block 505, the outer frame 7 is clamped and fixed by the clamping mechanism 5. At the same time, after the reinforcing rib 8 is placed above the fixing platform 401, the reinforcing rib 8 is fixed by rotating the first rotating pressure rod 402 and pulling down the lifting hydraulic rod 18, thereby ensuring the stability of the outer frame 7 and the reinforcing rib 8 during the welding process.

[0034] The clamping mechanism 5 includes a limiting groove rod 501 and an adapter top block 505 fixedly connected to the upper surface of the processing table 1. A lifting threaded rod 502 is rotatably connected to the upper surface of the processing table 1. A lifting rod 503 is threadedly connected to the outer surface of the lifting threaded rod 502. A third rotating pressure rod 504 is rotatably connected to the upper surface of the lifting rod 503. The skeleton frame 7 is placed above the adapter top block 505 and is adapted to the adapter top block 505. The lifting rod 503 slides inside the limiting groove rod 501.

[0035] Furthermore, after the outer frame 7 is placed above the adapter top block 505, the lifting threaded rod 502 is rotated to move the lifting rod 503 upward so that the third rotating pressure rod 504 extends above the outer frame 7. Then, the third rotating pressure rod 504 is rotated and the lifting threaded rod 502 is rotated in the opposite direction, so that the lifting threaded rod 502 can press and fix the outer frame 7.

[0036] The moving mechanism 6 includes a power motor 603 fixedly connected to the upper surface of the moving plate 11. A transmission rod 601 is drivenly connected to the output shaft of the power motor 603. A moving wheel 602 is rotatably connected to the lower end of the moving plate 11. The transmission rod 601 and the moving wheel 602 are drivenly connected. A dust suction port 12 is opened at one end of the processing table 1. A fixed frame 13 is fixedly connected to the upper surface of the end of the processing table 1 away from the dust suction port 12. A powerful fan 14 is fixedly connected inside the fixed frame 13.

[0037] Furthermore, the movable mechanism 6 can be used to move the movable plate 11 and the welded structure 2. When the power motor 603 starts, it drives the transmission rod 601 to rotate, and then the transmission rod 601 conveys the material to the movable wheel 602 to move the movable plate 11. At the same time, the powerful fan 14 and the dust suction port 12 can absorb the dust from the grinding process.

[0038] Working principle: After the outer frame 7 is placed above the adapter top block 505, the clamping mechanism 5 clamps and fixes the outer frame 7. Simultaneously, after the reinforcing rib 8 is placed above the fixing platform 401, the first rotating pressure rod 402 rotates and the lifting hydraulic rod 18 pulls down to fix the reinforcing rib 8, thus ensuring the stability of the outer frame 7 and the reinforcing rib 8 during welding. During welding, the moving plate 11 is driven forward by the power motor 603, and at the same time, the welding motor 204 starts, driving the welding gear 205 and half gear 202 to rotate, thereby driving the welding... The joint 208 welds the welding points on both sides of the outer frame 7. When the half gear 202 rotates, it will drive the welding steering arm 207 and the welding head 208 to move left and right above the outer frame 7. Before welding, the welding surface is ground by the set grinding steering arm 301 and the rotating grinding head 302. After welding is completed, the moving plate 11 moves backward. After welding, the welding point is ground again by the grinding steering arm 301 and the rotating grinding head 302, so as to grind and smooth out defects such as welding slag and burrs that may be generated during the welding process, and prevent unnecessary trouble in subsequent painting.

[0039] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A welding fixture for an automobile seat frame, comprising a processing table (1), a frame outer frame (7), reinforcing ribs (8), and a head connector (9), characterized in that: A sliding rod (10) is fixedly connected to the upper surface of the processing table (1). A movable plate (11) is slidably connected inside the sliding rod (10). A welding structure (2) is provided on the upper surface of the movable plate (11). A grinding mechanism (3) is provided on one side of the movable plate (11). A moving mechanism (6) is fixedly connected to the upper surface of the movable plate (11). A clamping mechanism (4) and a pressing mechanism (5) are provided at the upper end of the processing table (1). The welding structure (2) is used to perform circumferential welding around the outer frame (7) of the skeleton during the welding process, and at the same time, the welding part is polished by the set grinding mechanism (3); The clamping mechanism (4) is used to fix the reinforcing rib (8) during welding, thereby preventing shaking during the welding process. At the same time, the pressing mechanism (5) is used to fix the outer frame (7) of the skeleton, so that the outer frame (7) and the reinforcing rib (8) are welded stably during the welding process. The welding structure (2) includes a semi-fixed shaft (201) fixedly connected to the upper surface of the movable plate (11), a semi-gear (202) rotatably connected to the outer surface of the semi-fixed shaft (201), a welding frame (203) fixedly connected to the upper surface of the movable plate (11), a welding motor (204) fixedly connected inside the welding frame (203), a welding gear (205) fixedly connected to the output shaft of the welding motor (204), a rotating table (206) rotatably connected to the upper surface of the movable plate (11), a welding steering arm (207) rotatably connected to the upper end of the rotating table (206), and a welding head (208) rotatably connected to the top end of the welding steering arm (207). A grinding steering arm (301) is rotatably connected to one side of the moving plate (11), and a rotating grinding head (302) is rotatably connected to the top of the grinding steering arm (301). The half gear (202) meshes with the welding gear (205), and the half fixed shaft (201) and the half gear (202) are both one-third circles.

2. The welding fixture for an automotive seat frame according to claim 1, characterized in that: A moving motor (15) is fixedly connected inside the processing table (1). A moving threaded rod (16) is fixedly connected to the output shaft of the moving motor (15). A moving block (17) is threadedly connected to the outer surface of the moving threaded rod (16). A lifting hydraulic rod (18) is fixedly connected to the upper surface of the moving block (17). A fixed hydraulic rod (410) is fixedly connected to the upper surface of the processing table (1). A moving fixed plate (412) is fixedly connected to one end of the fixed hydraulic rod (410).

3. The welding fixture for an automotive seat frame according to claim 2, characterized in that: The upper end of the lifting hydraulic rod (18) is fixedly connected to a fixed platform (401). The fixed platform (401) is rotatably connected to a first rotating pressure rod (402) and a second rotating pressure rod (405). The bottom end of the first rotating pressure rod (402) is fixedly connected to a first clamping gear (403). The lower surface of the fixed platform (401) is fixedly connected to a clamping frame (407). The clamping frame (407) is fixedly connected to a clamping motor (408). The output shaft of the clamping motor (408) is fixedly connected to a second clamping gear (409). The outer surface of the first rotating pressure rod (402) is driven by a first transmission belt (404). The outer surface of the second rotating pressure rod (405) is driven by a second transmission belt (406).

4. The welding fixture for an automotive seat frame according to claim 3, characterized in that: The first rotating pressure rod (402) and the second rotating pressure rod (405) are connected by a first transmission belt (404), the first clamping gear (403) and the second clamping gear (409) are meshed, the moving block (17) is slidably connected inside the processing table (1), and the moving fixing plate (412) is inserted into the head connecting frame (9).

5. The welding fixture for an automotive seat frame according to claim 1, characterized in that: The clamping mechanism (5) includes a limiting groove rod (501) and an adapter top block (505) fixedly connected to the upper surface of the processing table (1). A lifting threaded rod (502) is rotatably connected to the upper surface of the processing table (1). A lifting rod (503) is threadedly connected to the outer surface of the lifting threaded rod (502). A third rotating pressure rod (504) is rotatably connected to the upper surface of the lifting rod (503). The skeleton frame (7) is placed above the adapter top block (505) and is adapted to the adapter top block (505). The lifting rod (503) slides inside the limiting groove rod (501).

6. The welding fixture for an automotive seat frame according to claim 1, characterized in that: The moving mechanism (6) includes a power motor (603) fixedly connected to the upper surface of the moving plate (11). A transmission rod (601) is connected to the output shaft of the power motor (603). A moving wheel (602) is rotatably connected to the lower end of the moving plate (11). The transmission rod (601) and the moving wheel (602) are connected in a transmission manner.

7. The welding fixture for an automotive seat frame according to claim 1, characterized in that: A dust suction port (12) is provided at one end of the processing table (1), and a fixed frame (13) is fixedly connected to the upper surface of the end of the processing table (1) away from the dust suction port (12). A powerful fan (14) is fixedly connected inside the fixed frame (13).

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