Wheel cover traceless welding multi-vehicle-type switching mechanism

Abstract

The invention relates to the technical field of automobiles, and discloses a wheel cover traceless welding multi-vehicle-type switching mechanism which comprises a rotary table, an executing mechanism used for switching different vehicle types is arranged above the rotary table, and a driving mechanism used for driving the rotary table to rotate is arranged below the rotary table; the executing mechanism comprises a first copper bar assembly and a second copper bar assembly which are used for assisting welding. The first copper bar assembly and the second copper bar assembly are located at the two ends of the rotary table, a sliding table assembly used for switching different vehicle types is arranged below the second copper bar assembly, and the second copper bar assembly is installed on the rotary table through the sliding table assembly. The technical problems that an existing switching structure is complex in structure and low in vehicle type switching efficiency can be solved.

Description

Technical Field

[0001] The invention relates to the technical field of automobiles, and in particular to a wheel cover seamless welding multi-model switching mechanism. Background Art

[0002] In the automobile production process, appearance quality is one of the key factors that determine the market competitiveness of products. Seamless welding technology can provide a flawless welding surface, significantly improving the visual appeal and market competitiveness of products. In addition, seamless welding technology can reduce or completely eliminate subsequent grinding, polishing and other processes, thereby directly improving production efficiency, reducing costs, and improving product consistency and stability.

[0003] In order to meet the requirements of seamless welding of different vehicle models, it is necessary to use a multi-model switching mechanism. However, there are some problems with the existing model switching mechanism. (1) The current switching mechanism can only switch between two models on the same production line, which greatly limits the flexibility of the production line. When it is necessary to support more types of vehicles, companies have to add additional equipment or adjust existing production lines, which increases complexity and cost; (2) The current switching mechanism has a complex structure and is inconvenient to use, which increases the difficulty of operation and maintenance cost. Summary of the invention

[0004] The present invention aims to provide a wheel cover seamless welding multi-vehicle type switching mechanism to solve the technical problems of the existing switching structure, which has a complex structure and low vehicle type switching efficiency.

[0005] In order to solve the above-mentioned technical problems, the present invention adopts the following technical solutions: a wheel cover seamless welding multi-vehicle type switching mechanism, comprising a turntable, an actuator for switching between different vehicle types is provided above the turntable, and a driving mechanism for driving the turntable to rotate is provided below the turntable; the actuator comprises a first copper bar assembly and a second copper bar assembly for auxiliary welding; the first copper bar assembly and the second copper bar assembly are located at both ends of the turntable, a slide assembly for switching between different vehicle types is provided below the second copper bar assembly, and the second copper bar assembly is mounted on the turntable through the slide assembly.

[0006] The principle of this solution is: in actual application, first determine the vehicle type that needs to perform seamless welding of wheel covers, use the rotary cylinder to drive the turntable to move, rotate the required first copper bar assembly or the second copper bar assembly to the preset vehicle type welding position for seamless welding. Specifically, when performing seamless welding of the first type of vehicle, the first wheel cover is transferred to the designated first vehicle type welding position together with the vehicle body through the sled, and the rotary cylinder drives the turntable to move, accurately moving the first copper bar assembly to the designated first vehicle type welding position and placing it above the first wheel cover. The first copper bar assembly serves as an auxiliary welding material to ensure the smooth progress of the first wheel cover welding process. The welding robot carries a welding gun to perform spot welding on the first copper bar assembly to achieve seamless welding of the first wheel cover; when switching to seamless welding of the second type of vehicle, the second wheel cover is transferred to the designated second vehicle type welding position together with the vehicle body through the sled, and the rotary cylinder drives the turntable to move the slide assembly to the desired position, and then the slide assembly moves the required second copper bar The assembly is moved to the designated welding position of the second vehicle model and placed above the second wheel cover. The second copper bar assembly is used as an auxiliary welding material to ensure that the welding process of the second wheel cover proceeds smoothly. The welding robot carries a welding gun to spot weld the second copper bar assembly to achieve seamless welding of the second wheel cover. When switching to seamless welding of the third vehicle model, the third wheel cover is transferred to the designated welding position of the third vehicle model together with the car body through the slide. The slide assembly moves the required second copper bar assembly to the designated welding position of the third vehicle model and places it above the third wheel cover. The second copper bar assembly is used as an auxiliary welding material to ensure that the welding process of the second wheel cover proceeds smoothly. The welding robot carries a welding gun to spot weld the second copper bar assembly to achieve seamless welding of the third wheel cover.

[0007] The advantages of this solution are:

[0008] (1) It breaks the traditional technical prejudice of "one model, one tool", that is, each model requires a special tool for wheel cover welding. The wheel cover seamless welding multi-model switching mechanism provided by this solution can not only respond to the needs of multiple models quickly and flexibly, but also does not require the redesign or adjustment of the entire production line for each model, greatly improving the adaptability and production efficiency of the production line, reducing the downtime and switching time caused by switching models, thereby significantly improving the overall production efficiency.

[0009] (2) This solution achieves compatibility with the seamless welding requirements of different models at one workstation, reducing the need for multiple dedicated workstations. This not only effectively reduces space occupancy and improves space utilization, but also greatly improves the flexibility and adaptability of the production line.

[0010] (3) This solution cleverly combines the rotary cylinder, turntable and slide assembly to construct an efficient and flexible vehicle model switching mechanism, which can quickly switch between multiple vehicle models. With the help of the first copper bar assembly and the second copper bar assembly, the switching process is more accurate and faster, thereby achieving fast and accurate vehicle model switching, greatly optimizing the production process, and improving overall production efficiency and adaptability.

[0011] (4) Through the precise control of the rotating cylinder and slide assembly, each copper bar assembly is ensured to be accurately positioned, thereby improving the welding quality and consistency.

[0012] (5) This solution has a simple structure. The combined use of the slide assembly and the turntable simplifies the operating steps, reduces maintenance costs, and also reduces downtime caused by vehicle model switching, thereby improving economic benefits.

[0013] (6) The switching process is simple and quick, which improves the work efficiency and comfort of operators.

[0014] Preferably, as an improvement, the first copper bar assembly includes a first copper bar and a first cylinder that drives the first copper bar to move; the second copper bar assembly includes a second copper bar and a second cylinder that drives the second copper bar to move; the first copper bar and the second copper bar both include a copper column and a plurality of copper cones, the copper column is used to carry and support the copper cones installed thereon, and the copper cones are evenly distributed along the copper column.

[0015] Beneficial effects: (1) The copper vertebrae are evenly distributed along the copper column, which enhances the compression resistance and bending resistance of the copper bar structure, facilitates the rapid dissipation of heat, and can prevent deformation or damage of the material due to overheating / long-term use. In addition, the uniform heat distribution helps to maintain temperature stability during the welding process. (2) The first copper bar and the second copper bar are independent of each other: the first copper bar and the second copper bar each have an independent driving system (i.e., the first cylinder and the second cylinder), which can operate independently without interfering with each other. The position and state of the two copper bars can be adjusted according to the needs of different vehicle models, thereby improving the adaptability and response speed of the production line, while facilitating maintenance and reducing maintenance costs. (3) As a load-bearing and supporting structure, the copper column can provide sufficient rigidity to support the copper vertebrae and ensure the stability of the entire copper bar assembly during the welding process.

[0016] Preferably, as an improvement, the copper vertebra includes a vertebra and a coccyx, the coccyx is located at the top, and both the coccyx and the vertebra are used for auxiliary welding.

[0017] Beneficial effects: The coccyx and vertebrae are both used for auxiliary welding, and are evenly used to provide welding points, which is convenient for quickly determining the welding position and ensures that the current can be concentratedly and stably transmitted during the welding process, thereby achieving high-quality welding effects.

[0018] Preferably, as an improvement, the vertebra comprises a connecting block, one end of which is connected to the copper block, and the other end of which is fixed to the copper column via a supporting block.

[0019] Beneficial effects: The connecting block, as an intermediate piece, effectively connects the copper block and the copper column together, enhancing the rigidity and stability of the overall structure, and helps to withstand large forces without deformation or displacement during welding. Fixing the connecting block to the copper column through the support block can better disperse the stress applied to the copper block, avoid damage caused by local stress concentration, and extend the service life of the copper busbar assembly. The vertebrae, as an independent module, are easy to repair and replace.

[0020] Preferably, as an improvement, the number of the copper vertebrae is 5-10; the spacing between the coccyx and the adjacent vertebrae is 30mm-34mm, and the spacing between adjacent vertebrae is 28mm-43mm.

[0021] Beneficial effects: By adjusting the specific number of copper vertebrae, the number of copper vertebrae and the number of welding points can be flexibly configured according to the needs of different models, ensuring that each model can obtain the best welding effect; the reasonable setting of the spacing between the tail vertebrae and the adjacent vertebrae, as well as the spacing between adjacent vertebrae, can optimize the distribution of welding points, making welding more uniform and stable, thereby improving welding quality. At the same time, the appropriate number and spacing design of copper vertebrae can provide sufficient support while avoiding structural instability or material waste caused by too dense or sparse, improving the compression resistance and bending resistance of the copper bar, and not easy to deform.

[0022] Preferably, as an improvement, the curvature of the first copper bar is 151 degrees to 165 degrees, and the curvature of the second copper bar is 150 degrees to 155 degrees.

[0023] Beneficial effects: The curvature enables the first copper bar / the second copper bar to better fit the complex curved surface of the wheel cover, ensuring a more uniform current path and pressure distribution, thereby improving welding quality. At the same time, appropriate curvature can effectively disperse stress during welding, reduce deformation or damage caused by local stress concentration, enhance the stability and durability of the entire copper bar, and improve the fatigue resistance of the copper bar, making it less likely to break or fail during long-term use, thereby extending its service life.

[0024] Preferably, as an improvement, the thickness of the connecting block is 1mm-2mm, the length is 80mm-90mm, and the width is 20mm-30mm; the thickness of the copper block is 10mm-14mm, the width is 22mm-43mm, and the length is 65mm-100mm; and the height of the supporting block is 55mm-65mm.

[0025] Beneficial effects: Connecting block: Appropriate thickness ensures the rigidity and durability of the connecting block, which can withstand the pressure and torque generated during the welding process and reduce the risk of deformation or breakage. The design of appropriate width and length helps the connecting block to better disperse the stress applied to the connecting block and avoid damage caused by local stress concentration; Copper block: Appropriate thickness, width and length ensure the stability of the copper block when used as a soldering point, provide reliable electrical contact, ensure the quality of welding, and facilitate the rapid dissipation of heat, preventing deformation or damage of the material due to overheating, and helping to maintain temperature stability during the welding process; Support block: Appropriate height ensures the firmness of the support block, which can reliably fix the connecting block on the copper column and enhance the stability of the overall structure of the copper busbar.

[0026] Preferably, as an improvement, the driving mechanism includes a rotary cylinder for driving the turntable to rotate and a cam for guiding the turntable to rotate, the cam is located below the turntable, a support assembly is installed below the cam, and the support assembly is a closed "Y-type" structure.

[0027] Beneficial effects: The rotating cylinder provides a stable rotational driving force to ensure that the turntable can be moved accurately to the desired position; the cam, as a guide device, can provide smooth guidance during the rotation of the turntable, reduce vibration and shaking, ensure stability during welding, thereby improving welding quality, and can disperse the force generated by the turntable during rotation, reduce the pressure on the rotating cylinder and other components, and extend the service life of the entire system; the support assembly can provide stable supporting force for the actuator, turntable and cam above it, ensuring the stability of the entire mechanism, and the closed "Y-type" structure provides a solid foundation, enhancing the rigidity and stability of the overall mechanism.

[0028] Preferably, as an improvement, the cam includes a roller, a boss and a bolt; the boss is provided with a through hole for the bolt to pass through, and the bolt passes through the through hole to install the roller in the middle of the boss.

[0029] Beneficial effects: The design of the roller enables the cam to replace sliding contact with rolling contact when guiding the turntable to rotate, which greatly reduces friction, reduces wear and energy loss, extends the service life of components, reduces vibration and noise, and improves the positioning accuracy and welding quality of the system; by fixing the roller with bolts, the position of the roller can be easily adjusted or replaced when necessary, which simplifies the maintenance and debugging process and adapts to different operational requirements.

[0030] Preferably, as an improvement, the slide assembly includes a slide, which is located below the second copper bar assembly, and the slide cylinder is located in the middle of the slide for driving the slide to move along a predetermined track, and the first strong clamping cylinder is located on both sides of the slide for limiting the position of the slide.

[0031] Beneficial effects: The slide cylinder is located in the middle of the slide, which can provide concentrated and stable driving force, ensuring that the slide can accurately move to the required position along the predetermined track, improving the accuracy of position control, and; the first strong clamping cylinder can quickly lock the slide after it reaches the specified position to prevent the slide from moving during the welding process and ensure the accuracy of the welding point. The slide position can be flexibly adjusted to meet the welding needs of different models.

[0032] The beneficial effects of this solution are as follows: (1) The design of the structure of the vertebrae, coccyx and copper column formed by the connecting block, copper block and supporting block makes the first copper bar and the second copper bar present a shape similar to the spine. The special design of the spine shape, curvature and shape and size of each component (connecting block, copper block, supporting block) of the first copper bar and the second copper bar enables it to fit the shape and size of the required wheel cover tightly, ensuring that pressure and heat are evenly distributed on the entire welding surface, thereby achieving high-quality welding connection, while enhancing the pressure resistance and bending resistance of the overall structure, and is not easy to deform or damage during the seamless welding of the wheel cover.

[0033] (2) The overall structural design of the first copper busbar and the second copper busbar takes into account temperature stability, welding conductivity, pressure resistance, and bending resistance.

[0034] (3) The first copper bar and the second copper bar are independent of each other and can operate independently without interfering with each other. The positions and states of the two copper bars can be adjusted according to the needs of different vehicle models, thereby improving the adaptability and response speed of the production line. At the same time, it is easy to maintain and can reduce maintenance costs.

[0035] (4) This solution can achieve fast and accurate switching and welding of different vehicle models through the combined use of a turntable, a slide assembly, and a copper bar assembly (i.e., a first copper bar assembly and a second copper bar assembly). That is, the coordinated work of the turntable and the slide assembly can complete the vehicle model switching in a short time, reducing the waiting time on the production line and improving production efficiency; the high-precision control of the rotating cylinder and the slide cylinder ensures that each copper bar assembly can accurately reach the required position, ensuring the consistency of welding quality.

[0036] (5) Compatible with the switching needs of multiple models at one workstation, reducing the need for multiple dedicated workstations, effectively reducing space occupancy, improving space utilization, and greatly improving the flexibility and adaptability of the production line. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1 A schematic structural diagram of a wheel cover seamless welding multi-vehicle type switching mechanism provided in an embodiment of the present invention.

[0038] Figure 2 A schematic diagram of the structure of the copper busbar in the wheel cover seamless welding multi-vehicle switching mechanism provided in an embodiment of the present invention.

[0039] Figure 3 This is a schematic structural diagram of the first copper column in the wheel cover seamless welding multi-vehicle type switching mechanism provided in an embodiment of the present invention.

[0040] Figure 4 A schematic diagram of the structure of the second copper column in the wheel cover seamless welding multi-vehicle type switching mechanism provided in an embodiment of the present invention.

[0041] Figure 5 This is a structural schematic diagram of seamless welding in a wheel cover seamless welding multi-vehicle type switching mechanism provided in an embodiment of the present invention.

[0042] Figure 6 This is a schematic structural diagram of the first copper bar in the wheel cover seamless welding multi-vehicle type switching mechanism provided in an embodiment of the present invention.

[0043] Figure 7 A schematic diagram of the structure of the second copper bar in the wheel cover seamless welding multi-vehicle type switching mechanism provided in an embodiment of the present invention.

[0044] Figure 8 The structure of the cam in the wheel cover seamless welding multi-vehicle switching mechanism provided by the embodiment of the present invention is schematically shown. Figure 1 .

[0045] Fig. 9 The structure of the cam in the wheel cover seamless welding multi-vehicle switching mechanism provided by the embodiment of the present invention is schematically shown. Figure 2 . DETAILED DESCRIPTION

[0046] The following is further described in detail through specific implementation methods:

[0047] The figure marks in the drawings of the specification include: rotating cylinder 1, turntable 2, cam 3, roller 31, boss 32, bolt 33, first cylinder 4, first copper bar 5, copper cone 51, connecting block 511, copper block 512, support block 513, copper column 52, first copper column 521, second copper column 522, slide 6, slide cylinder 7, second cylinder 8, first strong clamping cylinder 9, second copper bar 10, second strong clamping cylinder 11, support assembly 12, body panel 13, first support column 14, second support column 15, third support column 16, fourth support column 17.

[0048] Embodiment 1:

[0049] The embodiment is basically as shown in the attached Figure 1 As shown: a wheel cover seamless welding multi-vehicle type switching mechanism, comprising a turntable 2, an actuator for switching between different vehicle types, and a driving mechanism for driving the actuator to rotate.

[0050] The actuator is installed above the turntable 2, and the actuator includes a first copper bar assembly, a second copper bar assembly and a slide assembly. The first copper bar assembly includes a first cylinder 4 and a first copper bar 5 installed on the turntable 2. Specifically, the first cylinder 4 is used to drive the movement of the first copper bar 5 and control the opening or closing of the first copper bar 5; the first copper bar 5 for auxiliary welding is installed above the first cylinder 4. The first copper bar 5 has excellent thermal conductivity and can quickly conduct the heat generated during the welding process to avoid melting marks or deformation caused by local overheating, thereby preventing overheating from affecting the welding quality and equipment life. At the same time, the first copper bar 5, as a good auxiliary welding material (i.e., conductive and thermally conductive material), can ensure the stable transmission of the welding current, reduce the impact of current fluctuations on the welding quality, and make the surface of the welding area smoother and flatter. There will be no traces of solder joints at the position covered by the first copper bar 5.

[0051] like Figure 2 As shown, the first copper bar 5 is composed of a copper column 52 and a plurality of copper vertebrae 51, and the copper column 52 is a main support member, which is used to carry and support each copper vertebrae 51 installed thereon. The shape of the copper column 52 is composed of a plurality of support columns connected in sequence. In the present embodiment, the shape of the copper column 52 is formed by connecting a plurality of support columns of different shapes, so that the copper column 52 as a whole presents a curved form, and the curved form can effectively disperse the force applied to the copper column 52, so that these forces are evenly distributed on the entire copper bar structure, thereby improving the compression resistance and bending resistance of the copper bar. In addition, the curved design can better fit the shape of the wheel cover, increase its contact area, help heat to be dissipated faster, and reduce the risk of local overheating. At the same time, the copper column is an iron material, which can provide a strong supporting force and can ensure the stability and strength of the structure. The copper vertebrae 51 are evenly distributed along the structure of the copper column 52, so that it forms a form similar to the spine. This design ensures the overall flexibility and flexibility of the first copper bar 5, so that it can better fit the surface of the wheel cover. The spine-like shape is conducive to maintaining the fit and flatness of the contact surface between the first copper bar 5 and the wheel cover, thereby ensuring the smoothness of the contact surface with the wheel cover. In addition, while maintaining sufficient support strength with the wheel cover, it exhibits good flexibility and is adaptable to various types of wheel cover shapes. The copper vertebra 51 is used to assist in welding and is in contact with the wheel cover to be welded, which can ensure the accuracy of the welding position. Specifically, the copper vertebra 51 is divided into two parts from top to bottom: the coccyx and the vertebrae. The coccyx is located at the top and the vertebrae are located below the coccyx. Both the coccyx and the vertebrae are used to cover the welding position on the vehicle body, thereby assisting welding and improving the quality of welding.

[0052] In this embodiment, the curvature of the first copper bar 5 is 151 degrees to 165 degrees. Figure 3As shown, the first copper column 521 (i.e., the copper column of the first copper bar is the first copper column 521) is hinged by four support columns of different shapes and sizes, which are the first support column 14, the second support column 15, the third support column 16 and the fourth support column 17 from bottom to top. The curvature between the first support column 14 and the second support column 15 is 151.307 degrees, the curvature between the second support column 15 and the third support column 16 is 152 degrees, and the curvature between the third support column 16 and the fourth support column 17 is 162.159 degrees. The copper vertebrae 51 are evenly arranged on the first copper column 521, so that the arc formed by the copper vertebrae 51 above each first copper column 521 maintains the same curvature. The structural design of the first copper bar 5 shows good flexibility while maintaining sufficient support strength, and can adapt to the shape of the required wheel cover. The evenly distributed copper vertebrae 51 make the first copper bar 5 more flexible and efficient in wheel cover welding applications.

[0053] The second copper bar assembly is connected to the turntable 2 through the slide assembly, that is, the second copper bar assembly, the slide assembly and the turntable 2 are arranged in an upper-middle-lower structure, and the turntable 2 is located at the bottom.

[0054] The second copper bar assembly includes a second cylinder 8 installed above the slide assembly and a second copper bar 10 above it for wheel cover welding. The second cylinder 8 is used to drive the movement of the second copper bar 10 and control the opening or closing of the second copper bar 10; the structure and function of the second copper bar 10 are similar to those of the first copper bar 5. The difference between the second copper bar 10 and the first copper bar 5 is that the curvature of the second copper bar 10 is different. Specifically, the curvature of the second copper bar 10 is 150 degrees to 155 degrees, such as Figure 4 As shown, the second copper column 522 (i.e., the copper column of the second copper bar is the second copper column 522) is connected by three support rods of different shapes, which are the first support rod, the second support rod and the third support rod from bottom to top, the curvature between the first support rod and the second support rod is 150 degrees, the curvature between the second support rod and the third support rod is 152.231 degrees, and the copper vertebrae are evenly arranged on the second copper column 522, so that the arc formed by the copper vertebrae above each second copper column 522 maintains the same curvature. This allows the second copper bar to better adapt to the welding of wheel covers of different models.

[0055] The sliding assembly includes a slide 6, a slide cylinder 7 and a first strong clamping cylinder 9. The slide 6 is located below the second copper bar 10, providing a mobile platform for the second copper bar 10 to switch between different models; the slide cylinder 7 is located in the middle of the slide 6, and is used to drive the slide 6 to move along a predetermined track, so that the second copper bar 10 rotates accordingly, and the switch between different models is realized; the first strong clamping cylinder 9 is located on both sides of the slide 6, and is used to limit the position of the slide 6 to prevent the wheel cover from shifting during welding, thereby affecting the quality of welding.

[0056] The turntable 2 is used to realize the switching between the first copper bar assembly and the second copper bar assembly, so as to realize the switching of different models. In the present embodiment, the turntable 2, the first copper bar assembly and the second copper bar assembly realize the free switching between different models. In the present embodiment, the free switching between three models can be realized, and the three models are C808, X1 and X3.

[0057] The driving mechanism is located below the turntable 2, and the driving mechanism includes a cam 3, a rotary cylinder 1, a second strong clamping cylinder 11, and a support assembly 12. Among them, the cam 3 is connected to the turntable 2 and is located below the turntable 2, which is used to assist the turntable 2 to rotate and play a guiding role, thereby realizing the switching of different vehicle models. A support assembly 12 for supporting the actuator, turntable 2 and cam 3 is installed below the cam 3. The support assembly 12 is a closed "Y-type" structure, which can effectively disperse the force generated during the rotation process and extend the service life of the entire mechanism; a rotary cylinder 1 is installed between the two branches of the "Y-type" structure, and the rotary cylinder 1 is used to drive the turntable 2 to rotate.

[0058] The specific implementation process is as follows:

[0059] like Figure 5As shown, the first type of vehicle seamless welding: when the first vehicle model is the C808 model, the first wheel cover is transferred to the designated first vehicle model welding position together with the body panel 13 through the sled, and the body panel 13 and the first wheel cover are welded at a position with a number of raised welding spots, which are used to ensure accurate alignment and firm connection during the welding process. The number of its welding spots corresponds to the number of copper vertebrae 51. The rotating cylinder 1 drives the turntable 2 to accurately rotate the first copper bar 5 to the welding position of the first vehicle model, and the second strong clamping cylinder 11 installed on the side of the turntable 2 limits the turntable 2 to ensure that the turntable 2 will not deviate during the welding process. After that, the first cylinder 4 is started to drive the first copper bar 5 to move in translation or rotation. Through precise speed control, the first cylinder 4 drives the first copper bar 5 to smoothly approach and press the body panel 13 within 3 seconds, so that it is in close contact with and presses the welding spots on the body panel 13, ensuring that the body panel 13 and the first wheel cover remain stationary during the seamless welding and will not move, thereby affecting the welding quality. After the fixation is completed, the first wheel cover is seamlessly welded. Specifically, the first cylinder 4 drives the copper column 52 to move, and the copper vertebra 51 above the copper column 52 moves along with the copper column 52. Since the copper vertebra 51 is evenly distributed along the copper column 52 and forms a spine-like structure, the copper column 52 and the copper vertebra 51 can maintain consistent movements, ensuring that each copper vertebra 51 can accurately reach the position of the welding point on the body panel 13. After the copper vertebra 51 contacts and presses the welding point, the welding robot carries the welding gun and moves accurately to the welding point position of the first copper bar 5 and the body panel 13 for spot welding. After the welding gun reaches the welding point position, the welding gun generates a high-temperature arc or resistance heat to melt the metal material at the welding point in a very short time, and seamlessly welds the first wheel cover to the body panel 13. During welding, the entire components are arranged in the order of the first copper bar 5, the body panel 13, and the first wheel cover from top to bottom; the first copper bar 5 is used as an auxiliary welding material, covering the body panel 13 and the first wheel cover, and is used to directly weld the first wheel cover to the body panel 13. After welding is completed, no obvious welding marks will be left at the welding point, ensuring the smoothness and beauty of the surface, and meeting the requirements of seamless welding. After welding is completed, the first cylinder 4 is re-driven again to move the first copper bar 5 away from the welding area and detach it from the body panel 13, thereby entering the open state; then, the first wheel cover that has been welded is transported away together with the body panel 13, thereby completing the seamless welding of the first model. In this embodiment, the first model refers to the C808 model.

[0060] Switching and seamless welding of the second type of vehicle: (1) When switching from the current C808 model to the second model X1, the second wheel cover is transferred to the designated second model welding position together with the body through the sled. The welding position between the body and the second wheel cover is provided with a number of raised welding points. These welding points are used to ensure accurate alignment and firm connection during welding. The number of welding points corresponds to the number of copper vertebrae 51. The rotary cylinder 1 drives the turntable 2 to rotate 180 degrees so that the second copper bar 10 is close to the welding position of the second model. In the process of the rotary cylinder 1 driving the turntable 2 to rotate, the cam 3 installed under the turntable 2 is used to assist the turntable 2 to rotate 180 degrees. Its guiding function can accurately rotate the turntable 2 to the desired position. The second strong clamping cylinder 11 installed on the side of the turntable 2 is used to limit the turntable 2 to avoid displacement during welding and thus affect the welding quality. Afterwards, the slide cylinder 7 in the slide assembly drives the second copper bar 10 to rotate to the designated position for welding of the second vehicle model, and the second cylinder 8 installed above the slide assembly drives the second copper bar 10 to closely contact and press the welding spot on the vehicle body, thereby realizing the compression and fixation between the second copper bar 10 and the vehicle body and the second wheel cover, ensuring that the vehicle body and the second wheel cover remain stationary during the seamless welding, and will not move, thereby affecting the welding quality. Specifically, the principle of the second cylinder driving the second copper bar 10 to move is similar to the principle of the first cylinder 4 driving the first copper bar 4. When the second copper bar 10 accurately reaches and presses the welding spot on the vehicle body, the seamless welding of the second wheel cover is performed, and the welding robot carries the welding gun and moves accurately to the welding spot position of the second copper bar 10 and the vehicle body for spot welding, that is, after the welding gun reaches the welding spot position, the welding gun melts the metal material at the welding spot in a very short time by generating a high-temperature arc or resistance heat, and the second wheel cover is seamlessly welded to the vehicle body. The second copper bar 10 is used as an auxiliary welding material, covering the vehicle body and the second wheel cover, and is used to weld the second wheel cover directly to the vehicle body. After the welding is completed, no obvious welding marks will be left at the welding point. After the welding is completed, the second cylinder 8 is driven again to move the second copper bar 10 away from the welding area and away from the vehicle body, thereby entering the open state; then, the welded second wheel cover is transported away with the vehicle body, thereby completing the traceless welding of the second vehicle model. In this embodiment, the speed at which the second cylinder 8 drives the second copper bar 10 away from / presses the second wheel cover is 3 seconds; the second vehicle model refers to the X1 model.

[0061] Switching and welding of the third model: When switching from the current X1 model to the third model X3, the slide assembly will be used directly to switch to the third model. That is, the third wheel cover is transferred to the designated third model welding position together with the body through the slide. The part where the body and the third wheel cover are welded is provided with a number of raised welding points. These welding points are used to ensure accurate alignment and firm connection during the welding process. The number of welding points corresponds to the number of copper vertebrae of the second copper bar 10. The slide cylinder 7 in the slide assembly drives the second copper bar 10 to rotate to the welding position of the third model; the first strong clamping cylinder 9 limits the slide assembly to prevent the slide assembly from shifting during the welding process, thereby affecting the welding quality; the second cylinder 8 installed above the slide assembly drives the second copper bar 10 to closely contact and press the welding points on the body, thereby realizing the compression and fixation between the second copper bar 10 and the body and the third wheel cover. After compaction, the welding robot carries a welding gun to directly spot weld the welding points of the second copper bar 10 and the car body. During welding, the arrangement order from top to bottom is the second copper bar 10, the car body, and the third wheel cover; the second copper bar 10 is used as an auxiliary welding material to cover the car body and the third wheel cover, and is used to weld the third wheel cover directly to the car body. After welding, no obvious welding marks will be left at the welding point. After welding is completed, the second cylinder 8 is re-driven again to move the second copper bar 10 away from the welding area and away from the car body, thereby entering the open state; then, the welded third wheel cover is transported away along with the car body, thereby completing the traceless welding of the third model. In this embodiment, the third model refers to the X3 model.

[0062] In this embodiment, the first copper bar 5 is used for welding of the C808 model, and the second copper bar 10 is used for welding between X1 and X3. When switching between the C808 model and the X1 model or the X3 model, the turntable 2 needs to be rotated 180 degrees before the sliding assembly is used to perform seamless welding of the wheel cover; when switching between the X1 model and the X3 model, the position of the second copper bar 10 is directly moved by the sliding assembly to perform seamless welding of the corresponding wheel cover. In this embodiment, the entire wheel cover can be directly and seamlessly welded to the vehicle body by moving one copper bar at a time.

[0063] In this solution, the combination of the first copper bar assembly, the second copper bar assembly, the turntable 2 and the slide assembly breaks the traditional technical prejudice of "one model one tool", that is, each model requires a special tool for wheel cover welding. The wheel cover seamless welding multi-model switching mechanism provided by this solution can not only respond to the needs of various models quickly and flexibly, but also does not require the redesign or adjustment of the entire production line for each model, greatly improving the adaptability and production efficiency of the production line, reducing the downtime and switching time caused by switching models, thereby significantly improving the overall production efficiency.

[0064] Compared with the traditional "one model one tool", this solution simplifies the operation process, reduces or eliminates additional tooling and adjustment steps, reduces unnecessary processes, and makes the entire production process smoother, faster and more efficient; and reduces the requirements for operator skills, reduces labor costs and the possibility of human errors, while improving production efficiency and flexibility, effectively controlling costs. In addition, this solution also proposes a "spine-shaped" copper busbar structural design, which not only provides strong support and stability, but also helps to improve the mechanical strength of the copper busbar itself, making it more stable and less prone to deformation when subjected to the pressure and thermal stress generated during welding, and enables the copper busbar to better fit the surface of the wheel cover, ensuring that pressure and heat are evenly distributed on the entire welding surface, thereby achieving high-quality welding connections.

[0065] Specifically, (1) the present invention realizes the switching of vehicle models by moving the position of the second copper bar 10 through the slide 6, that is, when it is necessary to switch to a different vehicle model, the slide 6 can accurately move the second copper bar 10 to a position suitable for the welding requirements of the vehicle model. The turntable 2 is responsible for rotating to realize the switching between two different copper bar assemblies (the first copper bar assembly and the second copper bar assembly). When the production line needs to switch from one vehicle model to another, the turntable 2 will rotate to the corresponding angle and bring the required copper bar assembly to the correct welding position, thereby realizing the vehicle model switching. (2) The present invention realizes efficient vehicle model switching through the combination of the rotating cylinder 1, the turntable 2 and the slide assembly. The combined use of the slide assembly and the turntable 2 simplifies the operation steps, reduces the difficulty of use and maintenance costs; (3) The switching process in the present invention is simple and fast, which improves the work efficiency and comfort of the operator. (4) The first copper bar 5 and the second copper bar 10 are independent of each other and can operate independently without interfering with each other. The positions and states of the two copper bars can be adjusted according to the needs of different vehicle models, which improves the adaptability and response speed of the production line, and is easy to maintain and can reduce maintenance costs. (5) The spine-like shape and special curvature design of the first copper bar 5 and the second copper bar 10 enable them to fit closely to the shape and size of the required wheel cover, ensuring that pressure and heat are evenly distributed on the entire welding surface, thereby achieving high-quality welding connections. At the same time, the pressure resistance and bending resistance of the overall structure are enhanced, and the wheel cover is not easily deformed or damaged during seamless welding.

[0066] In short, the wheel cover seamless welding multi-model switching mechanism provided by this solution enables the switching of different models to be fast, accurate and low-cost during the switching process, and at the same time, the quality is high when performing seamless welding.

[0067] Embodiment 2:

[0068] The difference between this embodiment and the first embodiment is that: in this embodiment, the vertebra includes a connecting block 511, one end of the connecting block 511 is connected to the copper block 512, and the other end of the connecting block 511 is fixed to the copper column 52 through the supporting block 513; the number of copper vertebrae 51 is 5-10; the spacing between the coccyx and the adjacent vertebrae is 30mm-34mm, and the spacing between adjacent vertebrae is 28mm-43mm; the thickness of the connecting block is 1mm-2mm, the length is 80mm-90mm, and the width is 20mm-30mm; the thickness of the copper block is 10mm-14mm, the width is 22mm-43mm, and the length is 65mm-100mm; the height of the supporting block is 55mm-65mm.

[0069] Specifically, Figure 6 As shown, the total length of the first copper bar 5 is 380 mm, the coverage area of ​​the first copper bar 5 is 8400 square millimeters, and the number of copper vertebrae 51 is 7, of which the number of vertebrae and coccyx are 6 and 1 respectively. The vertebrae include a connecting block 511, a copper block 512 and a supporting block 513; one end of the connecting block 511 is connected to the copper blocks 512512, and the other end of the connecting block 511 is fixed to the copper column 52 through the supporting block 513.

[0070] The copper block 512 is arc-shaped and can fit the irregular curved surface of the wheel cover to improve the welding quality; the thickness of the copper block is 12mm, the width is 22mm-43mm, and the length is 65mm-100mm. In this embodiment, the copper block 512 located at the vertebrae shows a decreasing trend along the direction from the first cylinder 4 to the coccyx. For example, along the direction from the first cylinder 4 to the coccyx, the copper block 512 is the first copper block, the second copper block, the third copper block, the fourth copper block, the fifth copper block, and the sixth copper block. The first copper block has a thickness of 12mm, a width of 40mm, and a length of 100mm. From the first copper block to the sixth copper block, the length of the copper block 512 decreases in sequence according to a preset value, so that the size of the copper block 512 can match the size of the body panel 13. The end of the copper block 512 away from the connecting block 511 is the wheel cover placement area. The wheel cover is placed under the copper block 512. The copper block 512 contacts the area to be welded of the wheel cover to assist welding and ensure that the current can be effectively transmitted during the welding process.

[0071] The connecting block 511 is a rectangular structure used to connect the copper block 512 and the supporting block 513. The connecting block is elastic, so that the copper cone can better fit the shape of the wheel cover. Specifically, the thickness of the connecting block 511 is 2mm, the length is 90mm, and the width is 22mm; the supporting block 513 is a "T-shaped" structure, which can effectively install the connecting block 511 on the copper column 52.

[0072] The height of the support block 513 is 60 mm. The support block 513, the copper block 512, the connecting block 511 and the copper column 52 are provided with strip pin holes respectively. The copper block 512 and the connecting block 511, the connecting block 511 and the support block 513, and the support block 513 and the copper column 52 are fixedly connected by pins passing through the pin holes. After the fixed connection, the height between the copper column 52 and the copper vertebra 51 is 40 mm, the spacing between the coccyx and the adjacent vertebrae is 32 mm, and the spacing between the adjacent vertebrae is 35 mm. The height setting between the copper column 52 and the copper vertebra 51 and the spacing setting between the various parts of the copper vertebra have been considered and optimized, so that there is enough space between each vertebra for independent movement or adjustment, preventing structural problems caused by over-tightening, and being able to adapt to the position of the welding point on the body panel 13, ensuring that the copper block 512 can completely cover the welding point and improve the welding effect.

[0073] The difference between the vertebrae and the coccyx is the shape of the copper block 512. The copper block 512 of the coccyx is "Z-shaped" and can better adapt to the shape of the body panel 13. The copper block 512 of the vertebrae is long and strip-shaped.

[0074] like Figure 7 As shown, the total length of the second copper bar 10 is 380m. The second copper bar 10 is similar in structure to the first copper bar 5, and the difference between them is the shape and size of the tail vertebrae and the size of the copper block. Specifically, the connecting block connected to the tail vertebra of the second copper bar has a length of 58mm, a width of 43mm, and a thickness of 1mm. The copper block connected to the tail vertebra of the second copper bar is in the shape of a long strip, which matches the vehicle model required for seamless welding.

[0075] In this solution, the precision and efficiency of the welding operation are significantly improved by defining the detailed dimensions and functions of each part of the copper vertebra 51. In particular, the shape design of the support block 513 and the arc design of the copper block 512 make the fixing and welding of the wheel cover more stable and reliable. In addition, the reasonably set adjacent vertebral gaps ensure the flexibility and stability of the overall structure, adapting to different welding requirements and vehicle model switching. This refined design not only meets the needs of high-quality welding, but also provides a basis for possible future technical improvements and application expansion.

[0076] Embodiment three:

[0077] The difference between this embodiment and the first embodiment is that: in this embodiment, the cam 3 includes a roller 31, a convex seat 32 and a bolt 33. The convex seat 32 is provided with a through hole for the bolt 33 to pass through, and the bolt 33 passes through the through hole to install the roller 31 in the middle of the convex seat 32; the support assembly 12 includes a support plate and a "Y-shaped" structure below it.

[0078] Specifically, Figure 8 , Fig. 9As shown, the boss 32 is located above the support plate and is installed above the support plate through a pad. Through holes are provided on both sides of the boss 32. Bolts 33 fix the roller 31 in the middle of the boss 32 through the through holes on the boss 32. The design of the boss 32 enables the roller 31 to operate stably and will not deform or shift when subjected to greater pressure. The selection and installation method of the bolt 33 ensure that the roller 31 can rotate freely while being firmly connected to the boss 32, avoiding the risk of loosening or falling off. In this embodiment, the number of cams 3 is 6, which are evenly distributed around the support plate to form a circular arrangement. This layout ensures that the turntable 2 is evenly stressed during rotation, reduces the influence of eccentric torque, and improves the stability and accuracy of rotation. Each cam 3 is in direct contact with the lower surface of the turntable 2 through the boss 32. When the rotary cylinder 1 drives the turntable 2 to rotate, the roller 31 rotates with the turntable 2 to assist the rotation of the turntable 2. The design of the roller 31 transforms the relative movement between the cam 3 and the turntable 2 from sliding friction to rolling friction, which greatly reduces the wear between the two and extends the service life of the components. At the same time, it enables the turntable 2 to complete the rotation movement under lower friction resistance, thereby improving the response speed and operating efficiency of the system.

[0079] This solution adopts rolling friction rather than sliding friction through the design of cam 3, which significantly reduces the wear between cam 3 and turntable 2. This not only reduces maintenance costs, but also ensures stable performance after long-term operation.

[0080] The above is only an embodiment of the present invention, and the common knowledge such as the known specific technical solutions and / or characteristics in the solution is not described in detail here. It should be pointed out that for those skilled in the art, without departing from the technical solution of the present invention, several modifications and improvements can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicality of the patent. The scope of protection required by this application shall be based on the content of its claims, and the specific implementation methods and other records in the specification can be used to interpret the content of the claims.

Claims

1. Wheel cover seamless welding multi-model switching mechanism, characterized by: It includes a turntable, an actuator for switching between different vehicle models is provided above the turntable, and a driving mechanism for driving the turntable to rotate is provided below the turntable; the actuator includes a first copper bar assembly and a second copper bar assembly for auxiliary welding; the first copper bar assembly and the second copper bar assembly are located at both ends of the turntable, a slide assembly for switching between different vehicle models is provided below the second copper bar assembly, and the second copper bar assembly is installed on the turntable through the slide assembly.

2. The wheel cover seamless welding multi-vehicle switching mechanism according to claim 1 is characterized in that: The first copper bar assembly includes a first copper bar and a first cylinder driving the first copper bar to move; the second copper bar assembly includes a second copper bar and a second cylinder driving the second copper bar to move; the first copper bar and the second copper bar both include a copper column and a plurality of copper cones, the copper column is used to carry and support the copper cones installed thereon, and the copper cones are evenly distributed along the copper column.

3. The wheel cover seamless welding multi-vehicle switching mechanism according to claim 2 is characterized in that: The copper vertebra comprises a vertebra and a coccyx, wherein the coccyx is located at the top, and both the coccyx and the vertebra are used for auxiliary welding.

4. The wheel cover seamless welding multi-vehicle switching mechanism according to claim 3 is characterized in that: The vertebra comprises a connecting block, one end of which is connected to the copper block, and the other end of which is fixed on the copper column through a supporting block.

5. The wheel cover seamless welding multi-vehicle switching mechanism according to claim 3 is characterized in that: The number of the copper vertebrae is 5-10; the distance between the coccyx and the adjacent vertebrae is 30mm-34mm, and the distance between adjacent vertebrae is 28mm-43mm.

6. The wheel cover seamless welding multi-vehicle switching mechanism according to claim 2 is characterized in that: The curvature of the first copper bar is 151 degrees to 165 degrees, and the curvature of the second copper bar is 150 degrees to 155 degrees.

7. The wheel cover seamless welding multi-vehicle switching mechanism according to claim 4 is characterized in that: The thickness of the connecting block is 1mm-2mm, the length is 80mm-90mm, and the width is 20mm-30mm; the thickness of the copper block is 10mm-14mm, the width is 22mm-43mm, and the length is 65mm-100mm; the height of the supporting block is 55mm-65mm.

8. The wheel cover seamless welding multi-vehicle switching mechanism according to claim 1 is characterized in that: The driving mechanism includes a rotating cylinder for driving the turntable to rotate and a cam for guiding the turntable to rotate. The cam is located below the turntable. A supporting assembly is installed below the cam, and the supporting assembly is a closed "Y-type" structure.

9. The wheel cover seamless welding multi-vehicle switching mechanism according to claim 8, characterized in that: The cam comprises a roller, a convex seat and a bolt; the convex seat is provided with a through hole for the bolt to pass through, and the bolt passes through the through hole to install the roller in the middle of the convex seat.

10. The wheel cover seamless welding multi-vehicle switching mechanism according to claim 1, characterized in that: The slide assembly includes a slide, which is located below the second copper bar assembly. The slide cylinder is located in the middle of the slide and is used to drive the slide to move along a predetermined track. The first strong clamping cylinder is located on both sides of the slide and is used to limit the position of the slide.

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