Automatic butt joint and fixing device for automobile welding

Abstract

The utility model relates to the technical field of automobile welding, in particular to an automatic butt joint and fixing device for automobile welding. The technical problems that according to an existing fixing device, a bolt connection butt-joint plate is usually adopted for connecting and fixing parts, due to the fact that multi-angle welding work is needed in the welding process of part of automobile parts, when the bolt connection butt-joint plate is used for butt-joint fixing, bolts are tightened one by one through a tool, and when the angle of the welded parts needs to be adjusted, the bolts are tightened one by one through a tool are solved. And bolts need to be frequently disassembled for adjustment and fixation, so that the overall assembly time is increased, and the efficiency of a production line is reduced. According to the technical scheme, the automatic butt joint and fixing device for automobile welding comprises a welding table, a butt joint and fixing assembly, a rotating assembly and an adjusting and welding assembly; the telescopic clamping plates are connected with the limiting screws to fix the butt-joint plates, the butt-joint plates are detached and replaced to adapt to butt-joint work of the parts when the different parts are welded, and the butt-joint device adapts to the parts of different shapes and sizes.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile welding, in particular to an automatic docking and fixing device for automobile welding. Background Art

[0002] Automobile welding refers to the process of connecting automobile parts together using welding technology during the automobile manufacturing process. Welding is one of the key processes in automobile manufacturing and is used to manufacture body structures, chassis, suspension systems, engine parts, etc. In the automobile welding process, an automatic docking and fixing device is needed to realize the automatic docking and fixing of automobile parts, and accurately control the docking position of parts for welding. In the existing fixing device, bolts are usually used to connect and fix the parts during the welding process. Since some automobile parts require multi-angle welding during the welding process, when the bolts are used to connect the docking plates for docking and fixing, the bolts are tightened one by one using tools, and when the angle of the welded parts needs to be adjusted, the bolts need to be frequently removed for adjustment and fixing, which increases the overall assembly time and reduces the efficiency of the production line; so we proposed an automatic docking and fixing device for automobile welding to solve the above problems. Utility Model Content

[0003] In order to overcome the existing fixing devices, bolt connection butt plates are usually used to connect and fix parts. Since some automobile parts require multi-angle welding during the welding process, when using bolt connection butt plates for butt fixing, the bolts are tightened one by one using tools, and when the angle of the welded parts needs to be adjusted, the bolts need to be frequently disassembled for adjustment and fixing, which increases the overall assembly time and reduces the efficiency of the production line.

[0004] The technical scheme of the utility model is: an automatic docking and fixing device for automobile welding, comprising a welding table, a docking and fixing component, a rotating component and an adjusting welding component; the outer end of the welding table is symmetrically equipped with docking and fixing components for realizing accurate docking and fixing of automobile parts for welding operations, the upper end of the welding table is equipped with a rotating component for realizing rotating movement of automobile parts so as to adjust the welding angle of the parts during welding, and the upper part of the rotating component is equipped with an adjusting welding component for adjusting the position and angle of a welding gun to realize accurate control of welding of the welding gun.

[0005] Preferably, the docking plate is fixed by connecting the limit screws with a telescopic card plate, and the docking plate is disassembled and replaced according to the docking work of the parts when welding different parts, so as to adapt to parts of various shapes and sizes, so that the docking plate keeps the precise position of the parts during the welding process, and the driving motor is connected to the telescopic rod to drive the docking plate to promote the pre-welding of the automobile parts, so as to avoid the welding deviation caused by manual operation errors, realize the automation of the welding process, and improve the welding accuracy and efficiency. Secondly, the rotating motor is combined with the rotating rod to drive the rotating disk to rotate, so as to quickly and accurately adjust the welding angle of the parts, ensure the best angle of the parts during the welding process, adapt to welding work at different angles, and improve the flexibility of the overall welding. By adopting the first cylinder to drive the welding gun to lift and adjust the welding angle, the welding gun can adapt to welding requirements of different heights and is flexibly applicable to a variety of automobile parts and welding scenes. At the same time, the first cylinder drives to realize fast and smooth lifting action, which reduces the time of adjusting the angle of the welding gun. The second cylinder is used to drive the welding gun to adjust horizontally, and accurately control the moving trajectory of the welding gun on the weld, so that the welding gun can make periodic horizontal swings along the width direction of the weld, ensure the consistency of the weld, and improve the overall welding effect.

[0006] Preferably, the docking and fixing assembly includes a support plate, a drive motor, a telescopic rod, a limit block, a spring, a telescopic clamp, a limit screw, a connecting column and a docking plate. The outer wall of the support plate is provided with a drive motor, and a telescopic rod is provided between the drive motor and the support plate. The telescopic rod passes through the support plate and extends to the interior. A docking plate is provided on one side of the telescopic rod, and a connecting column is provided at the rear end of the docking plate. The drive motor is connected to the telescopic rod to drive the docking plate to promote the pre-welding of automobile parts, thereby ensuring the precise docking and fixation of automobile parts during the welding process, avoiding welding offset caused by manual operation errors, realizing the automation of the welding process, and improving the welding accuracy.

[0007] Preferably, the telescopic rod is symmetrically provided with limit blocks on the outer wall near the docking plate, two groups of springs are provided inside the limit blocks, a damper is provided on the inner side of the spring, a telescopic clamping plate is provided on the outer end of the limit block, one end of the telescopic clamping plate passes through the telescopic rod and extends to the inside, and limit screws are symmetrically provided on the outer wall of the telescopic clamping plate, and the telescopic clamping plate is fixedly connected to the connecting column by the limit screws. The docking plate is fixed by using the telescopic clamping plate to connect the limit screws, and the docking plate can be disassembled and replaced when welding different parts to adapt to the docking work of the parts, which can adapt to parts of various shapes and sizes, so that the docking plate can maintain the precise position of the parts during the welding process, thereby improving the welding accuracy and welding efficiency.

[0008] Preferably, the rotating assembly includes a support frame, a rotating motor, a rotating disk and an anti-slip pad. The supporting frame is provided with a rotating motor inside, and a rotating rod is provided between the rotating motor and the supporting frame. The rotating rod extends through the supporting frame to the upper end. The rotating disk is driven to rotate by the rotating motor combined with the rotating rod, so that the welding angle of the parts can be adjusted quickly and accurately, ensuring the optimal angle of the parts during the welding process, adapting to welding work at different angles, and improving the flexibility of the overall welding.

[0009] Preferably, a rotating disk is provided at one end of the rotating rod, and anti-skid pads are laid around the interior of the rotating disk. The rotating disk is movably arranged along the upper end of the support frame through the rotating rod. The parts are supported by laying anti-skid pads inside the rotating disk to provide stable support, increase the friction of the contact surface of the parts, make the connection between the parts and the rotating disk more secure, prevent the parts from shifting due to vibration or rotation during welding, and ensure the stability of the welding process.

[0010] Preferably, the adjustment welding assembly includes a positioning frame, a connecting plate, a load-bearing plate, a first cylinder, a hydraulic rod, a fixed frame, a positioning plate, a welding gun, a slide rail, a second cylinder, an adjusting rod, a movable plate and a slide rod. The first cylinder is provided inside the positioning frame, and a load-bearing plate is provided at the lower end of the first cylinder. A hydraulic rod is provided at one end of the first cylinder, and the hydraulic rod extends to the lower end through the load-bearing plate. A fixed frame is provided at one end of the hydraulic rod, and a connecting plate is provided at the lower end of the load-bearing plate. The outer wall of the connecting plate is symmetrically provided with slide rails, and the fixed frame is movably arranged along the outer wall of the slide rail through the hydraulic rod. The welding angle is adjusted by driving the welding gun to lift and lower the first cylinder, so that the welding gun can adapt to welding requirements of different heights and is flexibly applicable to a variety of automotive parts and welding scenes, thereby improving the versatility and adaptability of the device. At the same time, the first cylinder drive realizes fast and smooth lifting and lowering action, reduces the time for adjusting the angle of the welding gun, and improves the overall welding efficiency.

[0011] Preferably, a second cylinder is provided at the lower end of the fixed frame inside the connecting plate, an adjusting rod is provided at one end of the second cylinder, a movable plate is provided on one side of the adjusting rod, a positioning plate is provided at the lower end of the movable plate, and a welding gun is provided at the outer end of the positioning plate. The welding gun is driven by the second cylinder to adjust laterally, and the moving trajectory of the welding gun on the weld is precisely controlled, so that the welding gun can make periodic lateral swings along the width direction of the weld, thereby ensuring the consistency of the weld and improving the overall welding effect.

[0012] Beneficial effects of the utility model:

[0013] 1. Compared with the traditional fixing device, the docking plate is fixed by using a telescopic card plate to connect the limit screws. The docking plate is disassembled and replaced according to the welding of different parts to adapt to the docking work of the parts. It can adapt to parts of various shapes and sizes, so that the docking plate can maintain the precise position of the parts during the welding process. The driving motor is connected to the telescopic rod to drive the docking plate to promote the pre-welding of automobile parts, avoiding the offset of welding caused by manual operation errors, realizing the automation of the welding process, and improving the welding accuracy and efficiency. Secondly, the rotating motor is combined with the rotating rod to drive the rotating disk to rotate, so as to quickly and accurately adjust the welding angle of the parts, ensure the best angle of the parts during the welding process, adapt to welding work at different angles, and improve the overall welding flexibility.

[0014] 2. By using the first cylinder to drive the welding gun to lift and adjust the welding angle, the welding gun can adapt to welding requirements at different heights and is flexibly applicable to a variety of automotive parts and welding scenarios. At the same time, the first cylinder drives the welding gun to achieve fast and smooth lifting and lowering movements, reducing the time for adjusting the welding gun angle. The second cylinder drives the welding gun to adjust horizontally, accurately controlling the movement trajectory of the welding gun on the weld, so that the welding gun can make periodic horizontal swings along the width of the weld to ensure the consistency of the weld and improve the overall welding effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the structure of the docking and fixing assembly of the utility model;

[0017] Figure 3 This is a schematic diagram of the structure of the adjustable welding assembly of the utility model;

[0018] Figure 4 It is a schematic diagram of the rear end structure of the welding platform of the present utility model.

[0019] Explanation of the accompanying drawings: 1. welding table; 2. docking and fixing assembly; 201. support plate; 202. drive motor; 203. telescopic rod; 204. limit block; 205. spring; 206. telescopic clamp; 207. limit screw; 208. connecting column; 209. docking plate; 3. rotating assembly; 301. support frame; 302. rotating motor; 303. rotating disk; 304. anti-skid pad; 4. adjusting welding assembly; 401. positioning frame; 402. connecting plate; 403. load-bearing plate; 404. first cylinder; 405. hydraulic rod; 406. fixed frame; 407. positioning plate; 408. welding gun; 409. slide rail; 410. second cylinder; 411. adjusting rod; 412. movable plate; 413. slide rod. DETAILED DESCRIPTION

[0020] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0021] See also Figure 1-4 The utility model provides an embodiment: an automatic docking and fixing device for automobile welding, comprising a welding table 1, a docking and fixing component 2, a rotating component 3 and an adjusting welding component 4; the outer end of the welding table 1 is symmetrically equipped with a docking and fixing component 2 for realizing accurate docking and fixing of automobile parts for welding operations, the upper end of the welding table 1 is equipped with a rotating component 3 for realizing the rotational movement of automobile parts so as to adjust the welding angle of the parts during welding, and the upper part of the rotating component 3 is equipped with an adjusting welding component 4 for adjusting the position and angle of a welding gun to realize accurate control of welding of the welding gun.

[0022] See also Figure 1-2 In this embodiment, the docking fixing assembly 2 includes a support plate 201, a drive motor 202, a telescopic rod 203, a limit block 204, a spring 205, a telescopic card plate 206, a limit screw 207, a connecting column 208 and a docking plate 209. The outer wall of the support plate 201 is provided with a drive motor 202, and a telescopic rod 203 is provided between the drive motor 202 and the support plate 201. The telescopic rod 203 passes through the support plate 201 and extends to the inside. A docking plate 209 is provided on one side of the telescopic rod 203, and a connecting column 208 is provided at the rear end of the docking plate 209. The drive motor 202 is connected to the telescopic rod 203 to drive the docking plate 209 to promote the pre-welding of automobile parts, thereby ensuring the accurate docking and fixation of automobile parts during the welding process, avoiding welding deviation caused by manual operation errors, and realizing the automation of the welding process. , to improve welding accuracy, the outer wall of the telescopic rod 203 near the docking plate 209 is symmetrically provided with a limit block 204, two groups of springs 205 are arranged inside the limit block 204, and a damper is arranged on the inner side of the spring 205. The outer end of the limit block 204 is provided with a telescopic card plate 206, one end of the telescopic card plate 206 passes through the telescopic rod 203 and extends to the inside, and the outer wall of the telescopic card plate 206 is symmetrically provided with a limit screw 207, and the telescopic card plate 206 is fixedly connected to the connecting column 208 by the limit screw 207. The docking plate 209 is fixed by connecting the limit screw 207 with the telescopic card plate 206. When welding different parts, the docking plate 209 is disassembled and replaced to adapt to the docking work of the parts, and it is suitable for parts of various shapes and sizes, so that the docking plate 209 maintains the precise position of the parts during the welding process, thereby improving welding accuracy and welding efficiency.

[0023] See also Figure 1-3In this embodiment, the rotating assembly 3 includes a support frame 301, a rotating motor 302, a rotating disk 303 and an anti-skid pad 304. The supporting frame 301 is provided with a rotating motor 302 inside, and a rotating rod is provided between the rotating motor 302 and the supporting frame 301. The rotating rod passes through the supporting frame 301 and extends to the upper end. The rotating motor 302 is combined with the rotating rod to drive the rotating disk 303 to rotate, so as to quickly and accurately adjust the welding angle of the parts, ensure the best angle of the parts during the welding process, adapt to welding work at different angles, and improve the flexibility of the overall welding. A rotating disk 303 is provided at one end of the rotating rod, and an anti-skid pad 304 is laid around the inside of the rotating disk 303. The rotating disk 303 is movably arranged along the upper end of the supporting frame 301 through the rotating rod. The parts are supported by laying the anti-skid pad 304 inside the rotating disk 303, providing stable support, increasing the friction of the contact surface of the parts, making the connection between the parts and the rotating disk 303 more firm, preventing the parts from shifting due to vibration or rotation during welding, and ensuring the stability of the welding process.

[0024] See also Figure 2-4 In this embodiment, the adjustment welding assembly 4 includes a positioning frame 401, a connecting plate 402, a bearing plate 403, a first cylinder 404, a hydraulic rod 405, a fixed frame 406, a positioning plate 407, a welding gun 408, a slide rail 409, a second cylinder 410, an adjustment rod 411, a movable plate 412 and a slide rod 413. The first cylinder 404 is provided inside the positioning frame 401, and the lower end of the first cylinder 404 is provided with a bearing plate 403. One end of the first cylinder 404 is provided with a hydraulic rod 405, and the hydraulic rod 405 extends to the lower end through the bearing plate 403. One end of the hydraulic rod 405 is provided with a fixed frame 406, and the lower end of the bearing plate 403 is provided with a connecting plate 402. The outer wall of the connecting plate 402 is symmetrically provided with a slide rail 409. The fixed frame 406 is movably arranged along the outer wall of the slide rail 409 through the hydraulic rod 405. The welding angle is adjusted by driving the welding gun 408 to rise and fall by the first cylinder 404. The welding gun 408 can adapt to welding requirements of different heights and is flexibly applicable to a variety of automotive parts and welding scenarios, thereby improving the versatility and adaptability of the device. At the same time, the first cylinder 404 drives the welding gun 408 to achieve fast and smooth lifting and lowering movements, thereby reducing the time for adjusting the angle of the welding gun 408 and improving the overall welding efficiency. A second cylinder 410 is provided at the lower end of the fixed frame 406 inside the connecting plate 402, an adjusting rod 411 is provided at one end of the second cylinder 410, a movable plate 412 is provided on one side of the adjusting rod 411, a positioning plate 407 is provided at the lower end of the movable plate 412, and a welding gun 408 is provided at the outer end of the positioning plate 407. By adopting the second cylinder 410 to drive the welding gun 408 to adjust horizontally, the moving trajectory of the welding gun 408 on the weld can be accurately controlled, so that the welding gun 408 can make periodic horizontal swings along the width direction of the weld to ensure the consistency of the weld and improve the overall welding effect.

[0025] When working, first place the two groups of parts to be welded on the upper end of the anti-skid pad 304 inside the rotating disk 303, use the anti-skid pad 304 to support the parts, provide stable support, increase the friction of the contact surface of the parts, make the connection between the parts and the rotating disk 303 more firm, and prevent the parts from shifting due to vibration or rotation during the welding process. After placing the two groups of parts relative to each other, select the docking plate 209 that can dock the two groups of parts, use the connecting column 208 to connect the selected docking plate 209 to one end of the telescopic rod 203, grasp the telescopic card plate 206 and pull it out according to the spring 205 inside the limit block 204, and use The telescopic card plate 206 is fixedly connected to the connecting column 208 with a limit screw 207 to prevent it from falling off during the docking process. The docking plate 209 is disassembled and replaced according to the docking work of the parts when welding different parts. It is suitable for parts of various shapes and sizes, so that the docking plate 209 can maintain the precise position of the parts during the welding process. After the docking plate 209 is installed, the drive motor 202 is started to connect the telescopic rod 203 to drive the docking plate 209 to promote the docking pre-welding of the two groups of parts, ensuring the precise docking and fixation of automobile parts during the welding process, avoiding welding deviation caused by manual operation errors, and realizing the automation of the welding process.

[0026] After the two groups of parts are initially fitted together, according to the welding angles of the two groups of parts, the rotating motor 302 is started in combination with the rotating rod to drive the rotating disk 303 to rotate, and the welding angle of the parts is adjusted quickly and accurately to ensure the best angle of the parts during the welding process and adapt to welding work at different angles. After the angle is rotated and adjusted, the telescopic rod 203 is used to push the docking plate 209 for fastening and fitting to avoid shaking and falling off during the welding process. The first cylinder 404 is preferentially started to drive the welding gun 408 to lift and adjust the welding angle, so that the welding gun 408 is adjusted to a specified welding height, which is flexibly applicable to a variety of automotive parts. After the height of the welding gun 408 is adjusted, the second cylinder 410 is immediately started to drive the welding gun 408 to adjust horizontally, and the moving trajectory of the welding gun 408 on the weld is accurately controlled, so that the welding gun 408 can make periodic horizontal swings along the width direction of the weld. The welding angle is automatically adjusted during the welding process using two groups of cylinders to realize automatic welding of automotive parts.

[0027] Through the above steps, the telescopic card plate 206 is connected to the limit screw 207 to fix the docking plate 209. The docking plate 209 is disassembled and replaced according to the docking work of the parts when welding different parts, and it is suitable for parts of various shapes and sizes, so that the docking plate 209 maintains the precise position of the parts during the welding process. The driving motor 202 is connected to the telescopic rod 203 to drive the docking plate 209 to promote the pre-welding of the automobile parts, so as to avoid the welding deviation caused by manual operation errors, realize the automation of the welding process, and improve the welding accuracy and efficiency. Secondly, the rotating motor 302 is combined with the rotating rod to drive the rotating disk 303 to rotate, so as to quickly and accurately adjust the welding angle of the parts to ensure the parts. The best angle during the welding process can adapt to welding work at different angles and improve the flexibility of overall welding. The first cylinder 404 is used to drive the welding gun 408 to lift and lower the welding angle, so that the welding gun 408 can adapt to welding requirements at different heights and is flexibly applicable to a variety of automotive parts and welding scenarios. At the same time, the first cylinder 404 drives the welding gun 408 to achieve fast and smooth lifting and lowering movements, reducing the time for adjusting the angle of the welding gun 408. The second cylinder 410 is used to drive the welding gun 408 to adjust horizontally, and the moving trajectory of the welding gun 408 on the weld can be accurately controlled, so that the welding gun 408 can make periodic horizontal swings along the width direction of the weld to ensure the consistency of the weld and improve the overall welding effect.

[0028] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of those skilled in the art without departing from the purpose of the present invention.

Claims

1. An automatic docking and fixing device for automobile welding, comprising a welding table (1); characterized in that: The invention also comprises a docking and fixing assembly (2), a rotating assembly (3) and an adjusting welding assembly (4); the docking and fixing assembly (2) for achieving accurate docking and fixing of automobile parts for welding is symmetrically mounted on the outer end of the welding platform (1); the rotating assembly (3) for achieving rotation of automobile parts for adjusting the welding angle of the parts during welding is mounted on the upper end of the welding platform (1); and the adjusting welding assembly (4) for adjusting the position and angle of a welding gun for achieving accurate control of welding of the welding gun is mounted above the rotating assembly (3).

2. The automatic docking and fixing device for automobile welding according to claim 1, characterized in that: The docking fixing assembly (2) comprises a support plate (201), a drive motor (202), a telescopic rod (203), a limit block (204), a spring (205), a telescopic clamping plate (206), a limit screw (207), a connecting column (208) and a docking plate (209); the drive motor (202) is provided on the outer wall of the support plate (201); a telescopic rod (203) is provided between the drive motor (202) and the support plate (201); the telescopic rod (203) passes through the support plate (201) and extends to the inside; a docking plate (209) is provided on one side of the telescopic rod (203); and a connecting column (208) is provided at the rear end of the docking plate (209).

3. The automatic docking and fixing device for automobile welding according to claim 2, characterized in that: A limit block (204) is symmetrically provided on the outer wall of the telescopic rod (203) near the docking plate (209), two groups of springs (205) are provided inside the limit block (204), a damper is provided on the inner side of the spring (205), a telescopic card plate (206) is provided at the outer end of the limit block (204), one end of the telescopic card plate (206) passes through the telescopic rod (203) and extends to the inside, and a limit screw (207) is symmetrically provided on the outer wall of the telescopic card plate (206), and the telescopic card plate (206) is fixedly connected to the connecting column (208) through the limit screw (207).

4. The automatic docking and fixing device for automobile welding according to claim 1, characterized in that: The rotating assembly (3) comprises a support frame (301), a rotating motor (302), a rotating disk (303) and an anti-slip pad (304); the rotating motor (302) is arranged inside the support frame (301); a rotating rod is arranged between the rotating motor (302) and the support frame (301); the rotating rod passes through the support frame (301) and extends to the upper end.

5. The automatic docking and fixing device for automobile welding according to claim 4, characterized in that: A rotating disk (303) is provided at one end of the rotating rod, and an anti-skid pad (304) is laid around the interior of the rotating disk (303). The rotating disk (303) is movably arranged along the upper end of the support frame (301) through the rotating rod.

6. The automatic docking and fixing device for automobile welding according to claim 1, characterized in that: The adjusting welding assembly (4) comprises a positioning frame (401), a connecting plate (402), a bearing plate (403), a first cylinder (404), a hydraulic rod (405), a fixing frame (406), a positioning plate (407), a welding gun (408), a slide rail (409), a second cylinder (410), an adjusting rod (411), a movable plate (412) and a slide rod (413). The first cylinder (404) is arranged inside the positioning frame (401). A load-bearing plate (403) is provided at the lower end of the first cylinder (404), a hydraulic rod (405) is provided at one end of the first cylinder (404), the hydraulic rod (405) passes through the load-bearing plate (403) and extends to the lower end, a fixing frame (406) is provided at one end of the hydraulic rod (405), a connecting plate (402) is provided at the lower end of the load-bearing plate (403), a sliding rail (409) is symmetrically provided on the outer wall of the connecting plate (402), and the fixing frame (406) is movably arranged along the outer wall of the sliding rail (409) through the hydraulic rod (405).

7. The automatic docking and fixing device for automobile welding according to claim 2, characterized in that: A second cylinder (410) is provided inside the connecting plate (402) at the lower end of the fixed frame (406), an adjusting rod (411) is provided at one end of the second cylinder (410), a movable plate (412) is provided at one side of the adjusting rod (411), a positioning plate (407) is provided at the lower end of the movable plate (412), and a welding gun (408) is provided at the outer end of the positioning plate (407).

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