Rotatable multi-station automobile part welding fixture

Abstract

The present application relates to welding tooling technical field, more specifically discloses a rotatable multi-station automobile parts welding fixture, including support base, transmission motor and clamping assembly are installed on support base, clamping assembly is installed on rotating assembly, rotating assembly is driven to rotate through transmission motor, gear on rotating assembly is engaged with transmission assembly, cleaning assembly is installed on both sides of bearing assembly, cam assembly is installed on the middle of support base at the side of bearing assembly, and the movement of locking support block is controlled by cam assembly;The present application is provided with rotating assembly, clamping assembly and cleaning assembly, realizes multi-station synchronous operation, and the workpiece can be placed and welded in the welding station on top, then sequentially enters the post-station cooling, release station automatic drop-off, significantly improves production efficiency, realizes the full-automatic process of welding, cooling, cleaning and blanking.

Description

Technical Field

[0001] This invention relates to the field of welding tooling technology, and more specifically to a rotatable multi-station welding fixture for automotive parts. Background Technology

[0002] In the manufacturing and repair of automotive parts, welding technology is applied to the remanufacturing of special components. Precise and stable fixing of parts during welding is a prerequisite for ensuring welding quality.

[0003] The existing fixing devices used for welding parts mainly have the following problems: First, traditional fixed devices are mostly single-station designs, requiring manual assistance to switch between processes such as loading, welding, and unloading, resulting in low production efficiency. Furthermore, there are safety hazards for operators working near high-temperature welding areas.

[0004] Secondly, the existing clamping methods are relatively simple, mainly relying on manual or pneumatic clamping, and lack the function of rapid and uniform cooling of the high temperatures generated after welding. If the residual welding stress cannot be eliminated in time, it will directly affect the fatigue strength and service life of the components.

[0005] Furthermore, the spatter produced during welding can easily adhere to the surface of parts and the inside of tooling. If it is not cleaned in time, it will not only affect the processing accuracy of subsequent processes, but also cause tooling to jam and increase equipment maintenance costs.

[0006] In addition, the existing equipment mostly uses manual unloading or simple ejection mechanisms, which makes it difficult to achieve automatic separation and collection of workpieces and welding slag, and the degree of automation needs to be improved.

[0007] Therefore, there is an urgent need for a rotatable multi-station automotive parts welding fixture that integrates automatic multi-station conversion, welding zone cooling, automatic slag blowing and cleaning, and gravity unloading functions to solve the above problems. Summary of the Invention

[0008] In order to overcome the above-mentioned defects of the prior art, the present invention provides a rotatable multi-station automotive parts welding fixture to solve the problems existing in the background art.

[0009] This invention provides the following technical solution: a rotatable multi-station automotive parts welding fixture, including a support base, a transmission motor and a clamping assembly mounted on the support base, the clamping assembly mounted on a rotating assembly, the rotating assembly being driven to rotate by the transmission motor, gears on the rotating assembly meshing with the transmission assembly and a cleaning assembly, the cleaning assembly mounted on both sides of a carrying assembly, a cam assembly mounted on the support base at the center of the side of the carrying assembly, the cam assembly controlling the movement of a locking support block, thereby controlling the opening and closing of the carrying assembly, a workpiece being fixed on the clamping assembly, and the fixture being divided into a front station, a welding station, a rear station and a release station according to the rotation direction of the clamping assembly, wherein the top of the clamping assembly is the welding station, where the workpiece is placed and welded, the rear station is the cooling station, where internal water spraying is used for heat conduction and cooling, and the release station uses the gravity of the workpiece to cause it to fall off by itself and uses gravity to help solve the problem of surface weld slag.

[0010] Furthermore, the clamping assembly includes a clamping rotating box, inside which is a cooling plate made of copper for easy heat conduction. Multiple heat dissipation channels are formed on the cooling plate, with angles on both sides, allowing the cooling liquid sprayed from the nozzles to concentrate at the bottom for easy collection by the circulation nozzles. A fixing square slot is formed on the clamping rotating box, inside which a first clamping block and a second clamping rod are arranged. The first clamping block and the second clamping rod together apply a fixing effect to the workpiece. The fixing square slot is replaceable, allowing for the replacement of different combinations of the first clamping block and the second clamping rod by removing them.

[0011] Furthermore, the rotating assembly consists of a main shaft and a secondary shaft. The main shaft is the movable end, and the secondary shaft is the fixed end. The main shaft is mounted on a drive motor, and the secondary shaft is fixed on a support base. The main shaft is installed inside the secondary shaft. Multiple spray nozzles are provided on the surface of the secondary shaft at the rear station. An angle sensor is provided on the main shaft. When the clamping assembly and the workpiece are detected to have rotated to the rear station, the spray nozzles are activated. The spray nozzles spray low-temperature liquid onto the side of the cooling plate to cool the workpiece. A circulation nozzle is provided at the bottom of the secondary shaft. Both the circulation nozzle and the spray nozzles are connected to an external water tank on the side of the secondary shaft. The liquid sprayed from the spray nozzles is recycled through the circulation nozzle.

[0012] Furthermore, a central shaft gear and a four-corner cam are fixedly connected to the main shaft. The four-corner cam is provided with four electrical contacts, with the electrical contacts on both sides forming a group. Each group of electrical contacts is connected front and back, so that when it rotates to the annular groove, the circuit is connected to control the start and stop of the cleaning component. There is a 45° phase angle difference between the four-corner cam and the clamping component.

[0013] Furthermore, the cleaning assembly includes a pressure chamber with an arc-shaped plate mounted on its side. Multiple nozzles are located at the bottom of the arc-shaped plate. A transmission shaft is positioned above the pressure chamber, with a second gear fixedly connected to one end of the transmission shaft. The second gear meshes with a transmission gear. Multiple small cams are mounted on the transmission shaft, and a pressure pump is located at the bottom of each small cam. When the transmission motor drives the rotating assembly to rotate, the shaft gear drives the second gear to rotate via the transmission gear, thereby increasing the air pressure inside the pressure chamber through the multiple small cams. When the wire harness tube applies a start electrical signal to the pressure chamber, the nozzles clean the surface of the workpiece. The arc-shaped plate has an adjustable angle; by adjusting the arc, the angle and height of the nozzles can be controlled to maximize the spraying effect.

[0014] Furthermore, the transmission assembly includes a fixed support rod, a transmission gear sleeved on the fixed support rod, and the left and right sides of the transmission gear mesh with the second gear and the central shaft gear, respectively. An annular groove is provided on the fixed support rod, and the annular groove is located at the four corner cams. When the electrical contacts of the four corner cams rotate into the annular groove, the electrical contacts connect with the copper plates on both sides of the annular groove, so that the circuit inside the transmission assembly is connected. The electrical signal controls the cleaning assembly to blow air onto the workpiece on the bearing assembly through the wire harness tube. Since the support base is located on the side of the bearing assembly and has a slag collection groove, the blown slag is collected by the cleaning assembly and does not affect the subsequent process.

[0015] Furthermore, the bearing assembly consists of two hinged plates, which are installed in mirror image. The two sides of the hinged plates are mounted on the bottom of the support base via hinge rods. The two ends of the hinge rods are equipped with spiral springs, which apply a reverse support force to the hinged plates. The maximum support force of the spiral springs is less than the weight of the workpiece being processed. When there is no weight on the bearing assembly, the hinged plates return to a horizontal position under the action of the spiral springs and automatically lock above the locking support block, so that the workpiece being processed can be placed on top without falling.

[0016] Furthermore, the bottom of the support base is provided with a locking support block at the middle of both ends of the bearing component. The inside of the locking support block is installed at the bottom of the cam assembly through a locking block. When the cam assembly descends, the locking support block moves inward and loses support for the bearing component.

[0017] Furthermore, the cam assembly includes a cam rod and a square box. The cam rod and a return spring are installed inside the square box. The bottom of the cam rod is provided with a cone. When the four corner cams apply pressure to the cam rod, the cam rod overcomes the pressure of the return spring and moves down in the square box, causing the bottom cone to open outward and lock the support block. The bearing assembly loses its bearing on the workpiece, and the workpiece falls freely into the collection device at the bottom.

[0018] The technical effects and advantages of this invention are as follows: 1. This invention, by incorporating a rotating component, a clamping component, and a cleaning component, enables simultaneous operation at multiple workstations. The workpiece can be placed and welded at the top welding station, and then sequentially enters the rear cooling station and automatically detaches at the release station, significantly improving production efficiency and realizing a fully automated process of welding, cooling, cleaning, and unloading.

[0019] 2. This invention, by incorporating a cooling plate, spray nozzles, and circulation nozzles, enables rapid and uniform spray cooling of the workpiece after welding, effectively eliminating residual welding stress. Simultaneously, the heat dissipation channel centrally recovers the coolant, achieving the recycling of the cooling medium and reducing production costs.

[0020] 3. The present invention is equipped with a four-corner cam, a transmission component and a cleaning component. The rotational power of the rotating component synchronously drives the booster box to generate compressed air, and automatically blows air to clean the surface of the processed workpiece at the release station, effectively removing welding slag. The blown-off welding slag is collected and processed in a collection tank, ensuring a clean working environment.

[0021] 4. This invention, by incorporating a cam assembly, a locking support block, and a spiral spring, achieves automatic gravity unloading of the workpiece at the release station. After the workpiece falls into the bearing assembly, the spiral spring automatically resets, and the locking support block automatically locks, preparing for the next unloading operation. The structure is simple and reliable, requiring no additional power. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0023] Figure 2 This is an exploded view of the overall structure of the present invention.

[0024] Figure 3 This is a schematic diagram of the clamping component structure assembly of the present invention.

[0025] Figure 4 This is a schematic diagram of the rotating component structure of the present invention.

[0026] Figure 5 This is a schematic diagram of the cleaning component structure of the present invention.

[0027] Figure 6 This is a schematic diagram of the transmission component structure of the present invention.

[0028] Figure 7 This is a schematic diagram of the supporting component structure of the present invention.

[0029] Figure 8 This is a schematic diagram of the locking support block structure of the present invention.

[0030] Figure 9 This is a schematic diagram of the cam assembly structure of the present invention.

[0031] Figure 10 This is a schematic diagram of the assembly of the cam assembly and the locking support block of the present invention.

[0032] The attached figures are labeled as follows: 1. Support base; 2. Drive motor; 3. Clamping assembly; 301. Clamping rotating box; 302. Cooling plate; 303. First clamping block; 304. Second clamping rod; 305. Transmission hole; 4. Rotation assembly; 401. Main shaft; 402. Sub-shaft; 403. Central shaft gear; 404. Four-corner cam; 405. Spray nozzle; 406. Circulation nozzle; 5. Locking support block; 6. Cleaning assembly; 601. Pressure box; 602. Arc plate; 603. Drive central shaft; 604. Second gear; 7. Transmission assembly; 701. Fixed support rod; 702. Transmission gear; 703. Annular groove; 8. Cam assembly; 801. Cam rod; 802. Square box; 803. Return spring; 9. Bearing assembly; 901. Opening and closing plate; 902. Spiral spring; 10. Wire harness tube. Detailed Implementation

[0033] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. In addition, the forms of the various structures described in the following embodiments are merely illustrative. The rotatable multi-station automotive parts welding fixture involved in the present invention is not limited to the structures described in the following embodiments. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0034] Reference Figure 1 and Figure 2 This invention provides a rotatable multi-station automotive parts welding fixture, including a support base 1, on which a drive motor 2 and a clamping assembly 3 are mounted. The clamping assembly 3 is mounted on a rotating assembly 4, which is driven to rotate by the drive motor 2. Gears on the rotating assembly 4 are meshed with a drive assembly 7 and a cleaning assembly 6. The cleaning assembly 6 is mounted on both sides of a carrying assembly 9. A cam assembly 8 is mounted on the support base 1 at the center of the side of the carrying assembly 9. The cam assembly 8 controls the movement of a locking support block 5, thereby controlling the opening and closing of the carrying assembly 9. A workpiece is fixed on the clamping assembly 3. According to the rotation direction of the clamping assembly 3, it can be divided into a front station, a welding station, a rear station, and a release station. The top of the clamping assembly 3 is the welding station, where the workpiece is placed and welded. The rear station is a cooling station, where internal water spraying is used for heat conduction and cooling. The release station uses the gravity of the workpiece to allow it to fall off on its own and uses gravity to help solve the surface slag problem.

[0035] The main difference between this embodiment and the prior art is that it adopts a rotary multi-station linkage structure. Specifically, the station switching is achieved by rotating the rotating component 4, and the rotational power is used to synchronously drive the cleaning component 6 and the cam component 8, which solves the problems of low automation and lack of integrated cooling and cleaning functions in the existing device.

[0036] The above structure is the main structure of this embodiment, which solves the integrated problem of fixing, cooling, cleaning and automatic unloading during the component welding process. The specific control circuit of the drive motor 2 and the connection method of the external water tank are existing technologies and are not specified in detail in this application.

[0037] Reference Figure 3 The clamping assembly 3 includes a clamping rotating box 301. The clamping rotating box 301 is equipped with a cooling plate 302 inside. The cooling plate 302 is made of copper, which facilitates heat conduction. Multiple heat dissipation channels are formed on the cooling plate 302. Both sides of the heat dissipation channels have an inclination angle, so that the cooling liquid sprayed by the spray nozzle 405 is concentrated at the bottom through the heat dissipation channels, which is convenient for collection by the circulation nozzle 406. The clamping rotating box 301 is equipped with a fixing square slot. The fixing square slot is equipped with a first clamping block 303 and a second clamping rod 304. The first clamping block 303 and the second clamping rod 304 together apply a fixing effect to the workpiece being processed.

[0038] In this embodiment, it should be specifically noted that the fixed square groove is a replaceable structure. By removing the first clamping block 303 and the second clamping rod 304 which can be replaced in different positions, it can be adapted to different types of workpieces.

[0039] Reference Figure 4 The rotating assembly 4 consists of a main shaft 401 and a secondary shaft 402. The main shaft 401 is the movable end, and the secondary shaft 402 is the fixed end. The main shaft 401 is mounted on the drive motor 2, and the secondary shaft 402 is fixed on the support base 1. The main shaft 401 is installed inside the secondary shaft 402. The surface of the secondary shaft 402 is equipped with multiple spray nozzles 405 at the rear station. An angle sensor is installed on the main shaft 401. When the clamping assembly 3 and the workpiece are detected to have rotated to the rear station, the spray nozzles 405 are activated. The spray nozzles 405 spray low-temperature liquid onto the side of the cooling plate 302 to cool the workpiece.

[0040] In this embodiment, it should be specifically noted that: the bottom of the secondary shaft 402 is provided with a circulation nozzle 406, and both the circulation nozzle 406 and the spray nozzle 405 are connected to the external water tank on the side of the secondary shaft 402. The liquid sprayed by the spray nozzle 405 is recycled through the circulation nozzle 406.

[0041] Reference Figure 4A central shaft gear 403 and a four-corner cam 404 are fixedly connected to the main shaft 401. The four-corner cam 404 is provided with four electrical contacts. The electrical contacts on both sides are a group. Each group of electrical contacts is connected front and back, so that when it rotates to the annular groove 703, the circuit is connected to control the start and stop of the cleaning component 6. There is a 45° angle difference between the cam part of the four-corner cam 404 and the work position of the clamping component 3.

[0042] Reference Figure 5 The cleaning component 6 includes a pressure box 601. An arc-shaped plate 602 is installed on the side of the pressure box 601. Multiple nozzles are provided at the bottom of the arc-shaped plate 602. A transmission shaft 603 is provided above the pressure box 601. A second gear 604 is fixedly connected to one end of the transmission shaft 603. The second gear 604 meshes with the transmission gear 702. Multiple small cams are installed on the transmission shaft 603. A pressure pump is provided at the bottom of the small cams. When the transmission motor 2 drives the rotating component 4 to rotate, the shaft gear 403 drives the second gear 604 to rotate through the transmission gear 702, so that the multiple small cams increase the air pressure inside the pressure box 601. When the wire harness tube 10 applies a start electrical signal to the pressure box 601, the nozzles clean the surface of the workpiece.

[0043] In this embodiment, it should be specifically noted that the arc plate 602 is an angle-adjustable structure. By adjusting the arc, the angle and height position of the nozzle can be controlled to maximize the spraying effect.

[0044] Reference Figure 6 The transmission assembly 7 includes a fixed support rod 701, and a transmission gear 702 is sleeved on the fixed support rod 701. The left and right sides of the transmission gear 702 mesh with the second gear 604 and the central shaft gear 403, respectively. An annular groove 703 is provided on the fixed support rod 701. The annular groove 703 is located at the four corner cams 404. When the electrical contacts of the four corner cams 404 rotate into the annular groove 703, the electrical contacts connect with the copper plates on both sides of the annular groove 703, so that the circuit inside the transmission assembly 7 is connected. The electrical signal controls the cleaning assembly 6 to blow air onto the workpiece on the bearing assembly 9 through the wire harness tube 10. Since the support base 1 is located on the side of the bearing assembly 9 and has a slag collection groove, the blown slag is collected by the cleaning assembly 6 and does not affect the subsequent process.

[0045] In this embodiment, it should be specifically explained that: the workpiece is dropped onto the bearing component 9 by the rotation of the clamping component 3, and the surface welding slag is initially removed by its own gravity. Then, the cleaning component 6 performs further air cleaning, so that the workpiece can be quickly processed into the next process.

[0046] Reference Figure 7-8The supporting component 9 consists of two hinged plates 901, which are installed in a mirror image. The two sides of the hinged plates 901 are mounted on the bottom of the support base 1 via hinge rods. The two ends of the hinge rods are equipped with spiral springs 902. The spiral springs 902 apply a reverse supporting force to the hinged plates 901. The maximum supporting force of the spiral springs 902 is less than the weight of the workpiece. When there is no weight on the supporting component 9, the hinged plates 901 return to a horizontal position under the action of the spiral springs 902 and automatically lock above the locking support block 5, so that the workpiece can be placed on top without falling.

[0047] In this embodiment, it should be specifically noted that: the bottom of the support base 1 is provided with a locking support block 5 at the middle of both ends of the bearing component 9. The inside of the locking support block 5 is installed at the bottom of the cam component 8 through a locking block. When the cam component 8 descends, the locking support block 5 moves inward and loses support for the bearing component 9.

[0048] The locking support block 5 includes two sliding wedge blocks on the left and right, and a compression spring is provided between the two wedge blocks. When the cam rod 801 moves down, its cone inserts between the two wedge blocks and pushes them outward. After the cam rod 801 moves up, the compression spring pushes the two wedge blocks to reset inward.

[0049] Reference Figure 9-10 The cam assembly 8 includes a cam rod 801 and a square box 802. The cam rod 801 and the return spring 803 are installed inside the square box 802. The bottom of the cam rod 801 is provided with a cone. When the four corner cams 404 apply pressure to the cam rod 801, the cam rod 801 overcomes the pressure of the return spring 803 and moves down in the square box 802, causing the bottom cone to open outward and lock the support block 5. The bearing assembly 9 loses its bearing on the workpiece, and the workpiece falls freely into the collection device at the bottom.

[0050] Working principle of the invention: The main problems solved in this embodiment are: by using a rotatable multi-station clamping assembly, the integrated problem of fixing, cooling, cleaning and automatic unloading of parts during the welding process is solved; by using the linkage between the four corner cams and the transmission assembly, the problem of synchronous drive of rotational power for cleaning and opening and closing control is solved; and by using gravity unloading and spiral spring reset, the problem of automatic release of workpiece and automatic reset of the bearing table is solved.

[0051] The specific steps are as follows: S1: Initial state of the device and placement of the workpiece: The drive motor 2 drives the rotating component 4 to rotate an empty clamping component 3 to the top welding station. The operator or the automatic feeding robot places the workpiece on the clamping component 3. The first clamping block 303 and the second clamping rod 304 position and clamp the workpiece. At this time, the cooling plate 302 is in close contact with the area to be welded of the workpiece.

[0052] S2: Welding operation: At the top welding station, external welding equipment performs welding operations on the placed and clamped workpiece. During this process, the clamping assembly 3 maintains stable clamping.

[0053] S3: Rotation to Rear Station and Forced Cooling: After welding is completed, the drive motor 2 rotates 90°, sending the clamping assembly 3 holding the workpiece to the rear station. After the angle sensor on the spindle 401 detects the position, the spray nozzle 405 is activated. The spray nozzle 405 sprays low-temperature coolant onto the side of the cooling plate 302. The cooling plate 302 is made of copper and quickly absorbs the heat from the workpiece. The heat is transferred to the coolant through the heat dissipation channel. The coolant that has absorbed the heat flows to the bottom along the inclination of the heat dissipation channel and is recycled to the external water tank through the circulation nozzle 406 for reuse. This process effectively eliminates residual welding stress.

[0054] S4: Rotate to release station and automatically unload: After cooling is completed, the drive motor 2 rotates 90° again to send the workpiece to the release station. At this time, the first clamping block 303 and the second clamping rod 304 on the clamping assembly 3 are released, and the workpiece falls down under its own gravity and lands on the two opening and closing plates 901 of the bearing assembly 9 below. The impact force when falling causes some of the welding slag to fall off initially.

[0055] Meanwhile, due to the 45° phase angle difference between the four-corner cam 404 and the clamping assembly 3, when the clamping assembly 3 is in the release position, the electrical contact on the four-corner cam 404 rotates into the annular groove 703, making contact with the copper sheet. The electrical signal controls the cleaning assembly 6 to start through the wiring harness tube 10. During the rotation, the central shaft gear 403 drives the second gear 604 to rotate through the transmission gear 702, driving the small cam inside the pressure box 601 to continuously increase the pressure. Therefore, the cleaning assembly 6 has already stored compressed air. After receiving the electrical signal, the nozzle at the bottom of the arc plate 602 blows air forcefully onto the surface of the workpiece on the bearing assembly 9, thoroughly removing residual welding slag. The blown-off welding slag is collected in the welding slag collection groove on the side of the support base 1.

[0056] S5: Loading, cleaning and final unloading: After the air cleaning is completed, the drive motor 2 continues to rotate 45°. At this time, the protruding part of the four corner cam 404 contacts the cam rod 801 of the cam assembly 8 and presses down. The cam rod 801 overcomes the resistance of the return spring 803 and moves down. The cone at its bottom pushes the locking support blocks 5 on both sides outward. The locking support blocks 5 retract inward and lose support for the opening and closing plate 901 in the load-bearing assembly 9. The opening and closing plate 901 flips down and opens under the gravity of the workpiece. The workpiece falls freely onto the collection box or conveyor belt at the bottom of the support base 1, completing the final unloading.

[0057] S6: Automatic Reset of Load-Bearing Component: After the workpiece falls, there is no weight on the opening and closing plate 901. The elastic force of the spiral spring 902 causes the opening and closing plate 901 to rotate upward and return to a horizontal state. At the same time, the cam rod 801 moves upward and resets under the action of the reset spring 803, and the locking support block 5 extends outward to re-lock the opening and closing plate 901, preparing for the next material drop.

[0058] S7: Cyclic operation: The drive motor 2 continues to rotate, sending the next empty clamping assembly 3 into the top welding station, repeating the steps from S1 to S6 above to achieve continuous automated production.

[0059] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A rotatable multi-station automotive parts welding fixture, comprising a support base (1), characterized in that: The support base (1) is equipped with a drive motor (2) and a clamping assembly (3). The clamping assembly (3) is mounted on a rotating assembly (4). The rotating assembly (4) is driven to rotate by the drive motor (2). The gear on the rotating assembly (4) is meshed with the drive assembly (7) and the cleaning assembly (6). The cleaning assembly (6) is mounted on both sides of the bearing assembly (9). The support base (1) is equipped with a cam assembly (8) located in the middle of the side of the bearing assembly (9). The cam assembly (8) controls the movement of the locking support block (5), thereby controlling the opening and closing of the bearing assembly (9). The clamping assembly (3) is fixed with a workpiece. According to the rotation direction of the clamping assembly (3), it can be divided into a front station, a welding station, a rear station, and a release station. The top of the clamping assembly (3) is the welding station, where the workpiece is placed and welded. The rear station is the cooling station, where internal water spraying is used for heat conduction and cooling. The release station uses the gravity of the workpiece to make it fall off by itself.

2. The rotatable multi-station automotive parts welding fixture according to claim 1, characterized in that: The clamping assembly (3) includes a clamping rotating box (301), inside which is provided a cooling plate (302), the cooling plate (302) is made of copper, and multiple heat dissipation guide grooves are provided on the cooling plate (302), both sides of the heat dissipation guide grooves have an inclination angle, and a fixing square groove is provided on the clamping rotating box (301), inside which a first clamping block (303) and a second clamping rod (304) are provided, the first clamping block (303) and the second clamping rod (304) together apply a fixing effect to the workpiece being processed.

3. The rotatable multi-station automotive parts welding fixture according to claim 1, characterized in that: The rotating assembly (4) consists of a main shaft (401) and a secondary shaft (402). The main shaft (401) is mounted on the transmission motor (2) with its movable end, and the secondary shaft (402) is fixed on the support base (1) with its fixed end. The main shaft (401) is installed inside the secondary shaft (402). The surface of the secondary shaft (402) is provided with multiple spray nozzles (405) at the rear work position. An angle sensor is provided on the main shaft (401), and a circulation nozzle (406) is provided at the bottom of the secondary shaft (402). Both the circulation nozzle (406) and the spray nozzle (405) are connected to the external water tank on the side of the secondary shaft (402).

4. A rotatable multi-station automotive parts welding fixture according to claim 1, characterized in that: The main shaft (401) is fixedly connected to the central shaft gear (403) and the four-corner cam (404). The four-corner cam (404) is provided with four electrical contacts. The electrical contacts on both sides are a group. Each group of electrical contacts is connected front and back, so that when it rotates to the annular groove (703), the circuit is connected to control the start and stop of the cleaning component (6). There is a 45° phase angle difference between the four-corner cam (404) and the clamping component (3).

5. A rotatable multi-station automotive parts welding fixture according to claim 1, characterized in that: The cleaning component (6) includes a pressure box (601), an arc plate (602) is installed on the side of the pressure box (601), and multiple nozzles are provided at the bottom of the arc plate (602). A transmission shaft (603) is provided above the pressure box (601). A second gear (604) is fixedly connected to one end of the transmission shaft (603). The second gear (604) meshes with the transmission gear (702). Multiple small cams are installed on the transmission shaft (603), and a pressure pump is provided at the bottom of the small cams.

6. A rotatable multi-station automotive parts welding fixture according to claim 1, characterized in that: The transmission assembly (7) includes a fixed support rod (701), a transmission gear (702) sleeved on the fixed support rod (701), and the left and right sides of the transmission gear (702) mesh with the second gear (604) and the central shaft gear (403) respectively. The fixed support rod (701) is provided with an annular groove (703), which is located at the four corner cams (404).

7. A rotatable multi-station automotive parts welding fixture according to claim 1, characterized in that: The bearing component (9) consists of two hinged plates (901). The two hinged plates (901) are mirror-mounted. The two sides of the hinged plates (901) are mounted on the bottom of the support base (1) via hinge rods. The two ends of the hinge rods are provided with spiral springs (902). The spiral springs (902) apply a reverse support force to the hinged plates (901). The maximum support force of the spiral springs (902) is less than the weight of the workpiece being processed.

8. A rotatable multi-station automotive parts welding fixture according to claim 1, characterized in that: The bottom of the support base (1) is located at the middle of both ends of the bearing assembly (9) and a locking support block (5) is provided. The interior of the locking support block (5) is installed at the bottom of the cam assembly (8) by a locking block.

9. A rotatable multi-station automotive parts welding fixture according to claim 1, characterized in that: The cam assembly (8) includes a cam rod (801) and a square box (802). The cam rod (801) and a return spring (803) are installed inside the square box (802). The bottom of the cam rod (801) is provided with a cone.

10. A rotatable multi-station automotive parts welding fixture according to claim 1, characterized in that: The support base (1) is provided with a slag collection groove on the side of the bearing component (9).

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