Rotating device for welding machining of automobile parts

Abstract

The invention discloses a rotating device for welding machining of automobile parts, and relates to the technical field of welding machining, the rotating device comprises a rotary table and a moving assembly, the moving assembly is arranged on one side of the rotary table, the moving assembly comprises a sliding groove, the sliding groove is formed in the surface of the rotary table, and a gear disc is connected to the lower portion of the rotary table in a clamped mode; a clamping groove is formed in the middle of the sliding groove of the rotary table, and toothed bars are symmetrically arranged in the clamping groove. During use, continuous force application to a workpiece can be automatically stopped after a material is clamped, so that workpiece deformation or pressing damage caused by excessive force application to the workpiece is avoided while firm clamping is guaranteed, and in the welding process, the situation that the workpiece is damaged due to the fact that the clamping force is increased due to heating expansion can be avoided; and displacement caused by clamping looseness due to cooling shrinkage of the workpiece in the cooling process can be avoided, and before the device is used, the device can be rapidly adjusted according to needs, so that the device is suitable for machining of different workpieces.

Description

Technical Field

[0001] This invention relates to the field of welding processing technology, specifically a rotary device for welding automotive parts. Background Technology

[0002] In the welding process of automotive parts (such as brackets, connectors, housings, etc.), it is usually necessary to use a rotary platform or positioner to position, clamp and adjust the angle of the workpiece in order to obtain the ideal welding position. Most existing welding rotary devices use lead screws, cylinders or motors to drive the clamping unit to move radially to achieve centering and clamping of the workpiece.

[0003] However, when existing clamping mechanisms clamp thin-walled automotive parts, under the continuous action of the drive source, they often continue to apply clamping force after the jaws contact the workpiece, causing the workpiece to be indented, bent, or even broken. Furthermore, with frequent start-stop and reversal of the rotating platform, the clamping unit is prone to retraction, resulting in loosening of the clamping force, displacement of the workpiece, and affecting welding accuracy. Summary of the Invention

[0004] The purpose of this invention is to provide a rotating device for welding automotive parts, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a rotating device for welding automotive parts, comprising a turntable and a moving component. The moving component is provided on one side of the turntable, and the moving component includes a slide groove. The slide groove is formed on the surface of the turntable, and a gear disk is engaged and connected below the turntable. A slot is formed in the middle of the slide groove on the turntable, and toothed rods are symmetrically arranged in the slot. A slide rail is formed on the gear disk, and a retaining rail is provided on the outer side of the middle of the slide rail on the gear disk. A slider is engaged and slidably connected in the slide groove, and a receiving groove is provided on the upper part of the slider. An oil cavity is provided below the receiving groove on the slider, and stop grooves are symmetrically arranged on the upper part of the oil cavity. A stop block is engaged and connected in the stop groove, and a limiting groove is provided above the stop groove on the slider. A limiting block is engaged and connected in the limiting groove, and an electromagnetic plate is provided on the upper part of the limiting groove. Friction grooves are symmetrically arranged on the lower part of the oil cavity, and friction blocks are engaged and slidably connected in the friction groove. A sealing plate is rotatably connected in the receiving groove via a torsion spring shaft.

[0006] Furthermore, the slide rail and the locking rail are both arc-shaped, and there are four slide rails and slide grooves equidistantly distributed around the turntable and gear disk. The end of the slide rail near the edge of the gear disk coincides with the end of the slide groove near the edge of the turntable, and the slider is engaged and slidably connected with the slide rail.

[0007] Furthermore, the stop block and the limiting block are slidably connected to the slider through the stop groove and the limiting groove, respectively, and the lower end of the limiting block is in contact with the upper surface of the stop block. The stop block is engaged with the toothed rod. The upper part of the slider is a cuboid and the lower part of the slider is a cylinder.

[0008] Furthermore, a housing is provided on the outside of the turntable, and a drive motor is provided on one side of the housing. A drive wheel is connected to one side of the drive motor. A rotating ring is provided inside the housing and is engaged with the turntable. The turntable is rotatably connected to the housing through the rotating ring, and the drive wheel meshes with a gear disc.

[0009] Furthermore, oil tanks are symmetrically arranged above the turntable, and a stopper plate is slidably connected inside the oil tank. A connecting rod is connected to one side of the stopper plate, and a base plate is connected to one end of the connecting rod. The connecting rod is slidably connected to the oil tank.

[0010] Furthermore, a buffer box is connected to one side of the oil tank, and buffer springs are symmetrically arranged inside the buffer box. One end of the buffer spring is connected to a buffer plate, and the buffer plate is engaged and slidably connected to the buffer box.

[0011] Furthermore, the buffer plate is elastically connected to the buffer tank via a buffer spring, the buffer tank is connected to the oil tank via a pipe, and a pilot-operated hydraulic check valve is installed in the connecting pipe between the buffer tank and the oil tank.

[0012] Furthermore, a connecting pipe is connected to the bottom of the oil tank, and a sleeve is fitted onto the outside of the connecting pipe. A connecting spring is provided between the outer wall of the connecting pipe and the inner wall of the sleeve, and a connecting hole is provided on the connecting pipe. A connecting groove is provided at the bottom of the sleeve.

[0013] Furthermore, the connecting pipe is connected to the inside of the oil tank through a pipeline, and the connecting pipe is connected to the receiving groove through a connecting hole and a connecting groove. The sleeve is slidably connected to the slider through the receiving groove.

[0014] Furthermore, a flipping mechanism is provided on the bottom plates on the left and right sides of the turntable, and the flipping mechanism includes a telescopic rod, a motor and a pressure plate, and clamping plates are engaged and connected on both sides of the bottom plates on the front and rear sides of the turntable.

[0015] This invention provides a rotary device for welding automotive parts, which has the following advantages: During use, it automatically stops applying force to the workpiece after clamping the material, thus ensuring secure clamping while avoiding excessive force that could cause deformation or damage to the workpiece. Furthermore, during welding, it prevents the workpiece from being damaged due to increased clamping force caused by thermal expansion, and also prevents the workpiece from shifting due to cooling contraction. Moreover, the device can be quickly adjusted before use to adapt to different workpiece processing requirements.

[0016] 1. After clamping the material, as the gear disc continues to rotate, the hydraulic pressure drives the stop block and the rack to engage, causing the friction block to press against the rail and fix the position of the slider. This limits and fixes the clamping structure, allowing the gear disc to directly drive the turntable to rotate and move the material. It also prevents the clamping structure from increasing the force on the material as the gear disc continues to rotate, thus avoiding workpiece deformation or damage. Simultaneously, the limiting block automatically engages with the stop groove under gravity, restricting the stop block and preventing the clamping structure from retracting and loosening when the gear disc reverses. This ensures a stable clamping force during welding. After processing, the locking can be quickly released via the electromagnetic plate. Rotating the gear disc then resets the stop block and friction block, allowing the gear disc to move the slider back and release the clamp. This mechanism effectively solves the problems of uncontrollable clamping force and susceptibility to vibration or reversal in traditional devices, improving processing safety and positioning reliability.

[0017] 2. Before use, the oil tank and other components are installed on the slider. The installation process uses a quick-connect method, which is convenient and quick, and also facilitates the repair and replacement of parts in case of failure. Different flipping mechanisms can be installed on the left and right base plates of the turntable according to the shape of the workpiece. Clamping plates adapted to the workpiece are installed on the base plates on the front and rear sides of the turntable, so that workpieces of different models and specifications can be clamped. At the same time, the set pressure of the pilot-operated hydraulic check valve at the connection between the oil tank and the buffer tank can be adjusted according to the structure and material of the workpiece to ensure the clamping effect of the workpiece. During the processing, the flipping mechanism can flip the workpiece to facilitate welding operations. When not installed, the sealing plate can close the groove under the action of the torsion spring shaft to prevent external impurities from entering the oil chamber. At the same time, the connecting spring will also cause the connecting groove and the connecting hole to be misaligned to prevent oil leakage in the oil tank.

[0018] 3. In use, after the workpiece is placed on the turntable, the drive motor drives the gear disk to rotate below the turntable via the transmission wheel. This causes the gear disk to move the clamping structure towards the center of the turntable via the slide rail and slider, positioning the workpiece at the center of the turntable and clamping it using the clamping plate and the flipping mechanism. During clamping, oil from the tank can be pumped into the oil chamber, stopping the slider and completing the workpiece clamping. At this point, the pressure in the oil tank is close to the set pressure of the pilot-operated hydraulic check valve. If the slider moves too far during clamping, the pressure in the oil tank will be insufficient. The oil can flow into the buffer tank to limit the maximum clamping force, ensuring that the workpiece is not subjected to excessive pressure and protecting thin-walled workpieces. When welding the workpiece, the workpiece expands due to heat. After the oil pressure rises to the set value, the one-way valve opens, and the oil enters the buffer tank to compress the buffer spring, automatically reducing the clamping force and preventing workpiece damage caused by thermal expansion. When the workpiece is cooled, it will shrink due to the temperature drop, and the buffer spring will push the oil back, automatically compensating for the clamping force and preventing the workpiece from loosening or shifting. This achieves dynamic balance of clamping force throughout the welding process and improves welding quality. Attached Figure Description

[0019] Figure 1 This is a three-dimensional exploded cross-sectional view of the turntable of a rotating device for welding and processing automotive parts according to the present invention. Figure 2 This invention relates to a rotary device for welding automotive parts. Figure 1 Enlarged structural diagram at point A in the middle; Figure 3 This is a schematic diagram of the overall three-dimensional structure of a rotating device for welding and processing automotive parts according to the present invention. Figure 4 This is a three-dimensional cross-sectional view of the housing of a rotating device for welding and processing automotive parts according to the present invention. Figure 5 This is a three-dimensional cross-sectional view of the fuel tank structure of a rotating device for welding automotive parts according to the present invention. Figure 6 This is a three-dimensional cross-sectional view of the connecting pipe of a rotating device for welding and processing automotive parts according to the present invention.

[0020] In the diagram: 1. Turntable; 2. Moving component; 201. Slide groove; 202. Gear disk; 203. Slot; 204. Rack; 205. Slide rail; 206. Slot rail; 207. Slider; 208. Connecting groove; 209. Oil chamber; 210. Stop groove; 211. Stop block; 212. Limiting groove; 213. Limiting block; 214. Electromagnetic plate; 215. Friction groove; 216. Friction block; 217. Sealing plate; 3. Housing; 4. Drive motor; 5. Drive wheel; 6. Rotary ring; 7. Oil tank; 8. Plug plate; 9. Connecting rod; 10. Base plate; 11. Buffer box; 12. Buffer spring; 13. Buffer plate; 14. Connecting pipe; 15. Sleeve; 16. Connecting spring; 17. Connecting hole; 18. Communicating groove; 19. Tilting mechanism; 20. Clamping plate. Detailed Implementation

[0021] Please see Figures 1 to 6 The present invention provides a technical solution: a rotating device for welding automotive parts, comprising a turntable 1 and a moving component 2. The moving component 2 is provided on one side of the turntable 1. The moving component 2 includes a slide groove 201. The slide groove 201 is formed on the surface of the turntable 1, and a gear disk 202 is engaged and connected below the turntable 1. A slot 203 is formed in the middle of the slide groove 201 on the turntable 1, and a rack 204 is symmetrically arranged in the slot 203. A slide rail 205 is formed on the gear disk 202, and a retaining rail 206 is provided on the outer side of the middle part of the slide rail 205 on the gear disk 202. A slider 207 is engaged and slidably connected in the slide groove 201. The upper part of the 07 is provided with a receiving groove 208. The slider 207 is provided with an oil cavity 209 below the receiving groove 208. The upper part of the oil cavity 209 is symmetrically provided with a stop groove 210. A stop block 211 is engaged in the stop groove 210. The slider 207 is provided with a limiting groove 212 above the stop groove 210. A limiting block 213 is engaged in the limiting groove 212. An electromagnetic plate 214 is provided in the upper part of the limiting groove 212. The lower part of the oil cavity 209 is symmetrically provided with a friction groove 215. A friction block 216 is engaged in the friction groove 215. A sealing plate 217 is rotatably connected in the receiving groove 208 through a torsion spring shaft.

[0022] Please see Figures 1 to 4 The slide rail 205 and the clamping rail 206 are both arc-shaped, and the slide groove 201 and the slide rail 205 are equidistantly distributed in a circle about the turntable 1 and the gear disk 202. The end of the slide rail 205 near the edge of the gear disk 202 coincides with the end of the slide groove 201 near the edge of the turntable 1. The slider 207 is engaged and slidably connected with the slide rail 205. The stop block 211 and the limiting block 213 are slidably connected with the slider 207 through the stop groove 210 and the limiting groove 212, respectively. The lower end of the limiting block 213 is attached to the upper surface of the stop block 211. The stop block 211 is engaged and connected with the toothed rod 204. The upper part of the slider 207 is a cuboid, and the lower part of the slider 207 is a cylinder. The specific operation is as follows: After the material is clamped, as the gear disc 202 continues to rotate, oil is forced from the oil tank 7 into the oil chamber 209, applying force to the stop block 211 and the friction block 216, thereby causing them to slide in the stop groove 210 and the friction groove 215, so that the stop block 211 and the friction block 216 enter the slot 203 and the rail 206 respectively. The stop block 211 engages with the rack 204, fixing the position of the slider 207 in the slide groove 201, while the friction block 216 is pressed against the inner wall of the rail 206. Through friction, the position of the slider 207 in the slide rail 205 is fixed, thereby fixing the position of the slider 207 in the slide rail 205. The position of 7 is restricted. When the stop block 211 is engaged with the rack 204, the restricting block 213 falls under the action of gravity and slides from the restricting groove 212 into the stop groove 210, restricting the stop block 211 and maintaining the engagement between the stop block 211 and the rack 204, thereby keeping the slider 207 fixed. After the processing is completed, the electromagnetic plate 214 can be activated to pull the restricting block 213 back. At this time, the gear disk 202 is rotated to extract the oil from the oil chamber 209, so that the stop block 211 and the friction block 216 are reset, thereby allowing the gear disk 202 to drive the slider 207 to move back and release the clamp.

[0023] Please see Figures 3 to 6 A housing 3 is installed on the outer side of the turntable 1, and a drive motor 4 is installed on one side of the housing 3. A drive wheel 5 is connected to one side of the drive motor 4. A rotating ring 6 is installed inside the housing 3, and the rotating ring 6 is engaged with the turntable 1. The turntable 1 is rotatably connected to the housing 3 through the rotating ring 6. The drive wheel 5 meshes with the gear disk 202. An oil tank 7 is symmetrically arranged above the turntable 1, and a stopper plate 8 is engaged and slidably connected inside the oil tank 7. A connecting rod 9 is connected to one side of the stopper plate 8, and one end of the connecting rod 9 is connected to a base plate 10. The connecting rod 9 is engaged and slidably connected to the oil tank 7. A buffer box 11 is connected to one side of the oil tank 7, and buffer springs 12 are symmetrically arranged inside the buffer box 11. One end of the buffer spring 12 is connected to a buffer plate 13, and the buffer plate 13 is engaged and slidably connected to the buffer box 11. The buffer plate 13 is elastically connected to the buffer box 11 through the buffer spring 12. 11 is connected to the oil tank 7 through a pipe, and a pilot-operated hydraulic check valve is installed in the connecting pipe 14 between the buffer tank 11 and the oil tank 7. The oil tank 7 is connected to the bottom of the connecting pipe 14, and a sleeve 15 is sleeved on the outside of the connecting pipe 14. A connecting spring 16 is installed between the outer wall of the connecting pipe 14 and the inner wall of the sleeve 15. A connecting hole 17 is opened on the connecting pipe 14. A connecting groove 18 is opened at the bottom of the sleeve 15. The connecting pipe 14 is connected to the inside of the oil tank 7 through the pipe, and the connecting pipe is connected to the connecting groove 208 through the connecting hole 17 and the connecting groove 18. The sleeve 15 is engaged and slidably connected to the slider 207 through the connecting groove 208. A flipping mechanism 19 is installed on the bottom plate 10 on the left and right sides of the turntable 1. The flipping mechanism 19 includes a telescopic rod, a motor and a pressure plate. Clamping plates 20 are engaged and connected on both sides of the bottom plate 10 on the front and rear sides of the turntable 1. The specific operation is as follows: Before use, first install the oil tank 7 onto the slider 207. During installation, simply align the sleeve 15 with the groove 208 and press down the oil tank 7, causing the sleeve 15 to press the sealing plate 217 to rotate within the groove 208 and engage with it. As the oil tank 7 continues to press down, the connecting pipe 14 slides within the sleeve 15, stretching the connecting spring 16, thus connecting the connecting hole 17 with the connecting groove 208. At this point, the oil tank 7 is engaged with the slider 207. Then, fix the oil tank 7 to the slider 207 with the connecting bolts to complete the installation of the oil tank 7. After installation, select different flipping methods according to the shape of the workpiece. Mechanism 19 is installed on the base plates 10 on the left and right sides of the turntable 1, and clamping plates 20 adapted to the workpiece are installed on the base plates 10 on the front and rear sides of the turntable 1. At the same time, the set pressure of the pilot-operated hydraulic check valve at the connection between the oil tank 7 and the buffer tank 11 is adjusted according to the structure and material of the workpiece. In use, after the workpiece is placed on the turntable 1, the drive motor 4 is started. The drive motor 4 drives the transmission wheel to rotate, which causes the gear disk 202 to rotate below the turntable 1. The gear disk 202 drives the slider 207 to move towards the center of the turntable 1 in the slide groove 201 through the slide rail 205. The oil tank 7, along with the slider 207, drives the base plate through the connecting rod 9. When the base plate 10 approaches the workpiece, the clamping plate 20 and the tilting mechanism 19 can position the workpiece at the center of the turntable 1 and clamp it. After the clamping plate 20 and the tilting mechanism 19 contact the workpiece, as the gear disk 202 rotates, the clamping plate 20 and the tilting mechanism 19 will press against the workpiece, and the base plate 10 will drive the plug plate 8 to move in the oil tank 7 through the connecting rod 9, pressing the oil in the oil tank 7 into the oil chamber 209 through the connecting pipe 14 and the sleeve 15, causing the slider 207 to stop moving. At this time, the workpiece clamping is completed. At this time, the pressure in the oil tank 7 is close to the set pressure of the pilot-operated hydraulic check valve. If the slider 207 moves during the clamping process... When the distance is too great, the oil in the oil tank 7 can flow into the buffer tank 11 through the pilot-operated hydraulic check valve. When welding the workpiece, the workpiece expands due to heat, and the clamping plate 20 or the flipping mechanism 19 can apply force to the base plate 10, causing the plug plate 8 to pressurize the oil. When the oil pressure reaches the set pressure, the pilot-operated hydraulic check valve opens, and the oil in the oil tank 7 can flow into the buffer tank 11, pushing the buffer plate 13 to move and compressing the buffer spring 12. When cooling the workpiece, the workpiece cools down and contracts. At this time, the oil in the buffer tank 11 will be pushed into the oil tank 7 by the buffer spring 12 pushing the buffer plate 13, thus replenishing the oil in the oil tank 7.

[0024] In summary, when using this rotary device for welding automotive parts, first align the sleeve 15 at the bottom of the oil tank 7 with the groove 208 on the slider 207, then press down on the oil tank 7, causing the sleeve 15 to press the sealing plate 217 to rotate within the groove 208 and engage with it; continue pressing down, and the connecting pipe 14 slides within the sleeve 15, stretching the connecting spring 16, so that the connecting hole 17 aligns with the connecting groove 18. At this time, the oil tank 7 is connected to the oil cavity 209 in the slider 207; then use connecting bolts to fix the oil tank 7 and the slider 207 to complete the installation. When not installed, the sealing plate 217 closes the groove 208 under the action of the torsion spring, and the connecting spring 16 misaligns the connecting hole 17 with the connecting groove 18 to prevent impurities from entering and oil leakage; Then, different flipping mechanisms 19 are selected according to the shape of the workpiece and installed on the base plates 10 on the left and right sides of the turntable 1. Clamping plates 20 adapted to the workpiece are installed on the base plates 10 on the front and rear sides of the turntable 1 to clamp workpieces of different models and specifications. At the same time, the set pressure of the pilot hydraulic check valve at the connection between the oil tank 7 and the buffer tank 11 is adjusted according to the structure and material of the workpiece to ensure the clamping effect of the workpiece. During the processing, the workpiece can be flipped by the flipping mechanism 19 so that the workpiece can be welded. During processing, the workpiece is placed on the turntable 1, and the drive motor 4 is started. The drive wheel 5 drives the gear disk 202 to rotate. The gear disk 202 drives the slider 207 to move along the slide groove 201 towards the center of the turntable 1 via the slide rail 205. The oil tank 7, along with the slider 207, drives the base plate 10, clamping plate 20, and flipping mechanism 19 to approach the workpiece via the connecting rod 9, positioning the workpiece at the center of the turntable 1 and clamping it. After the clamping plate 20 and the flipping mechanism 19 contact the workpiece, as the gear disk 202 continues to rotate, the clamping force increases. The base plate 10 drives the plug plate 8 to move in the oil tank 7 through the connecting rod 9, pressing the oil into the oil cavity 209 in the slider 207 through the connecting pipe 14 and the sleeve 15. The oil pressure pushes the stop block 211 and the friction block 216 to slide along the stop groove 210 and the friction groove 215 respectively: the stop block 211 enters the slot 203 and engages with the rack 204, fixing the position of the slider 207 in the slide groove 201; Friction block 216 is pressed against the inner wall of rail 206, fixing the position of slider 207 within rail 205 by friction. At this time, slider 207 is completely locked, and gear disk 202 can drive turntable 1 to rotate to move the workpiece. At the same time, it prevents the clamping force from further increasing when gear disk 202 continues to rotate, which could lead to workpiece deformation or damage. Rotary ring 6 can provide support and restraint for turntable 1, ensuring the stability of turntable 1 during stationary and rotational processes. While the stop block 211 engages with the rack 204, the limiting block 213 falls from the limiting groove 212 into the stop groove 210 under the action of gravity, pressing on the upper surface of the stop block 211 to prevent the stop block 211 from disengaging when the gear disk 202 reverses, keeping the slider 207 fixed and preventing the clamping from loosening. After processing is completed, the electromagnetic plate 214 is activated to pull the limiting block 213 back into the limiting groove 212, releasing the limit on the stop block 211. At this time, the drive motor 4 drives the gear disk 202 to rotate, drawing the oil out of the oil chamber 209. The stop block 211 and the friction block 216 are reset, the slider 207 is unlocked, and the gear disk 202 drives the slider 207 to move back through the slide rail 205, thus releasing the clamping and taking out the workpiece. If the slider 207 moves too far during clamping, the pressure in the oil tank 7 approaches the set value of the pilot-operated hydraulic check valve. Excess oil can flow into the buffer tank 11 through the check valve, limiting the maximum clamping force and protecting the workpiece. During welding, the workpiece expands due to heat, and the clamping plate 20 or the flipping mechanism 19 pushes the base plate 10 and the plug plate 8 to apply pressure to the oil. When the oil pressure reaches the opening pressure of the pilot-operated hydraulic check valve, the check valve opens, and the oil in the oil tank 7 flows into the buffer tank 11, pushing the buffer plate 13 to compress the buffer spring 12, thereby reducing the pressure on the workpiece and preventing damage to the workpiece due to thermal expansion. When the workpiece cools and contracts, the buffer spring 12 pushes the buffer plate 13 to squeeze the oil in the buffer tank 11 back into the oil tank 7, replenishing the oil and maintaining the pressure of the clamping plate 20 and the flipping mechanism 19 on the workpiece, preventing the workpiece from loosening and shifting due to contraction.

[0025] It should be noted that, in this document, the terms “comprising,” “including,” or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0026] This article uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only for the purpose of helping to understand the method and core ideas of the present invention. The above descriptions are only preferred embodiments of the present invention. It should be noted that due to the limitations of textual expression, and the objective existence of infinite specific structures, those skilled in the art can make several improvements, modifications, or changes without departing from the principles of the present invention, and can also combine the above technical features in an appropriate manner. These improvements, modifications, changes, or combinations, or the direct application of the inventive concept and technical solution to other situations without modification, should all be considered within the scope of protection of the present invention.

Claims

1. A rotary device for welding automotive parts, characterized in that, The assembly includes a turntable (1) and a moving component (2). The moving component (2) is provided on one side of the turntable (1). The moving component (2) includes a slide groove (201). The slide groove (201) is provided on the surface of the turntable (1). A gear disk (202) is engaged and connected below the turntable (1). A slot (203) is provided in the middle of the slide groove (201) of the turntable (1). A rack (204) is symmetrically arranged in the slot (203). A slide rail (205) is provided on the gear disk (202). A retaining rail (206) is provided on the outer side of the middle part of the slide rail (205) of the gear disk (202). A slider (207) is engaged and slidably connected in the slide groove (201). A receiving groove (206) is provided on the upper part of the slider (207). 08), the slider (207) is provided with an oil cavity (209) below the receiving groove (208), and a stop groove (210) is symmetrically provided on the upper part of the oil cavity (209). A stop block (211) is engaged in the stop groove (210), and a limiting groove (212) is provided above the stop groove (210). A limiting block (213) is engaged in the limiting groove (212), and an electromagnetic plate (214) is provided on the upper part of the limiting groove (212). A friction groove (215) is symmetrically provided on the lower part of the oil cavity (209), and a friction block (216) is engaged and slidably connected in the friction groove (215). A sealing plate (217) is rotatably connected in the receiving groove (208) through a torsion spring shaft.

2. The rotary device for welding automotive parts according to claim 1, characterized in that, The slide rail (205) and the clamping rail (206) are both arc-shaped, and the slide groove (201) and the slide rail (205) are equidistantly distributed in a circle about the turntable (1) and the gear disk (202). The end of the slide rail (205) near the edge of the gear disk (202) coincides with the end of the slide groove (201) near the edge of the turntable (1), and the slider (207) is engaged and slidably connected with the slide rail (205).

3. The rotary device for welding automotive parts according to claim 1, characterized in that, The stop block (211) and the limiting block (213) are slidably connected to the slider (207) through the stop groove (210) and the limiting groove (212) respectively. The lower end of the limiting block (213) is attached to the upper surface of the stop block (211). The stop block (211) is engaged with the toothed rod (204). The upper part of the slider (207) is a cuboid, and the lower part of the slider (207) is a cylinder.

4. The rotary device for welding automotive parts according to claim 1, characterized in that, The turntable (1) is provided with a housing (3) on the outside, and a drive motor (4) is provided on one side of the housing (3). A drive wheel (5) is connected to one side of the drive motor (4). A rotating ring (6) is provided inside the housing (3), and the rotating ring (6) is engaged with the turntable (1). The turntable (1) is rotatably connected to the housing (3) through the rotating ring (6). The drive wheel (5) meshes with the gear disk (202).

5. The rotary device for welding automotive parts according to claim 1, characterized in that, An oil tank (7) is symmetrically arranged above the turntable (1), and a plug plate (8) is slidably connected inside the oil tank (7). A connecting rod (9) is connected to one side of the plug plate (8), and a base plate (10) is connected to one end of the connecting rod (9). The connecting rod (9) is slidably connected to the oil tank (7).

6. The rotary device for welding automotive parts according to claim 5, characterized in that, The oil tank (7) is connected to a buffer box (11) on one side, and buffer springs (12) are symmetrically arranged inside the buffer box (11). One end of the buffer spring (12) is connected to a buffer plate (13), and the buffer plate (13) is engaged and slidably connected to the buffer box (11).

7. The rotary device for welding automotive parts according to claim 6, characterized in that, The buffer plate (13) is elastically connected to the buffer box (11) through the buffer spring (12). The buffer box (11) is connected to the oil tank (7) through a pipe. A pilot-operated hydraulic check valve is installed in the connecting pipe (14) between the buffer box (11) and the oil tank (7).

8. A rotary device for welding automotive parts according to claim 5, characterized in that, A connecting pipe (14) is connected to the bottom of the oil tank (7), and a sleeve (15) is sleeved on the outside of the connecting pipe (14). A connecting spring (16) is provided between the outer wall of the connecting pipe (14) and the inner wall of the sleeve (15), and a connecting hole (17) is opened on the connecting pipe (14). A connecting groove (18) is opened at the bottom of the sleeve (15).

9. A rotary device for welding automotive parts according to claim 8, characterized in that, The connecting pipe (14) is connected to the inside of the oil tank (7) through a pipe, and the connecting pipe is connected to the receiving groove (208) through the connecting hole (17), the connecting groove (18), and the sleeve (15) is engaged and slidably connected to the slider (207) through the receiving groove (208).

10. A rotary device for welding automotive parts according to claim 5, characterized in that, The turntable (1) is provided with a flipping mechanism (19) on the bottom plate (10) on the left and right sides. The flipping mechanism (19) includes a telescopic rod, a motor and a pressing plate. The bottom plate (10) on the front and rear sides of the turntable (1) is connected with a clamping plate (20).

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