Spot welding clamp tool for inner plate and outer plate of left front door rearview mirror

Abstract

The utility model belongs to the field of clamps, and provides a spot welding clamp tool for an inner plate and an outer plate of a left front door rearview mirror, which comprises a tool plate, a plurality of supporting blocks are arranged on the tool plate, the inner plate is provided with a first main body part and a first bending part, the outer plate is provided with a second main body part and a second bending part, the first bending part is arranged in a step shape, and the second bending part is arranged in a step shape. And when the second bending part movably presses the first bending part, a positioning cavity is formed. Compared with the prior art, the positioning pin has the advantages that stable supporting force is provided for installation of the main body part through the multiple supporting blocks, accurate alignment of the two protruding parts is guaranteed by means of the design that the correcting blocks penetrate through the concave parts and are tightly attached to the inner walls of the concave parts, the positioning pin can smoothly penetrate through the bent parts, and the positioning precision is improved. According to the welding fixture, the first bending part is fixed through the first bending part, the second bending part is further limited to be fixed through the anti-falling block, the first bending part is further pressed and fixed through the pressing block, position deviation of the two bending parts in the welding process is effectively prevented, and the attractiveness and the welding quality of a final product are guaranteed.

Description

Technical Field

[0001] This utility model belongs to the field of fixtures, specifically relating to a spot welding fixture for the inner and outer panels of the left front door rearview mirror. Background Technology

[0002] In modern automobile manufacturing, rearview mirrors are not only an important part of vehicle exterior design, but also a key device for drivers to obtain information about the outside world and ensure driving safety. As components that come into direct contact with the environment, their inner and outer panels not only need to be aesthetically pleasing, but also need to provide reliable visual assistance under various complex road conditions.

[0003] The traditional assembly and welding process of rearview mirror inner and outer panels mainly relies on manual operation. Because the inner and outer panels have different shapes of first and second curved parts, the two curved parts often move relative to each other after the first and second main body parts are positioned and installed. This not only requires frequent manual adjustment of the relative positions between the two, increasing the labor intensity of manual labor and reducing the overall production efficiency, but also makes it difficult to ensure that the ideal alignment accuracy can be achieved every time by manual operation, ultimately leading to welding position deviation, affecting the aesthetics and safety of the product. Utility Model Content

[0004] In view of the above-mentioned shortcomings of the existing technology, the technical problem to be solved by this utility model is to propose a spot welding fixture for the inner and outer panels of the left front door rearview mirror, which can realize the rapid and accurate alignment and stable fixation of the main body and the curved part, thereby improving production efficiency and product welding quality.

[0005] The technical solution adopted by this utility model to solve its technical problem is to propose a spot welding fixture for the inner and outer panels of the left front door rearview mirror, which is used to realize the positioning and installation of the inner and outer panels. It includes: a fixture plate on which a plurality of support blocks are provided; the inner panel has a first main body and a first curved part; the outer panel has a second main body and a second curved part; the first curved part is arranged in a stepped shape; when the second curved part is moved to press against the first curved part, they together form a positioning cavity; the support blocks are used to support the first main body and the second main body together on the fixture plate.

[0006] A positioning element is provided on the tooling plate. The positioning element includes a positioning pin and a straightening block. The first main body or the second main body has a recessed portion and a protrusion that are connected to each other between the first curved portion or the second curved portion. The straightening block moves through the recessed portion and is close to its inner wall. After the two protrusions are aligned and overlapped, the positioning pin can pass through to restrict the second curved portion from displacing relative to the first curved portion.

[0007] A first clamping member and a second clamping member are disposed on the tooling plate. The first clamping member is used to press the second main body onto the first main body. The second clamping member is movably disposed with a clamping block and an anti-detachment block in the horizontal direction. The clamping block can extend into the positioning cavity and movably press against the top wall of the first curved part. The anti-detachment block is installed on the clamping block and can extend into the positioning cavity synchronously with the clamping block to limit the displacement of the second curved part in the direction perpendicular to its tangent.

[0008] In the aforementioned spot welding fixture for the inner and outer panels of the left front door rearview mirror, an adjusting shim for adjusting the height difference between the clamping block and the anti-detachment block is also installed between the clamping block and the anti-detachment block.

[0009] In the above-mentioned spot welding fixture for the inner and outer panels of the left front door rearview mirror, the straightening block has a guide slope and an L-shaped relief groove. The guide slope is connected to the top of the L-shaped relief groove and is used to guide the protrusion into the L-shaped relief groove and movably fit against the inner wall of the L-shaped relief groove.

[0010] In the aforementioned spot welding fixture for the inner and outer panels of the left front door rearview mirror, the second clamping component further includes:

[0011] A mounting base is provided on the tooling plate;

[0012] A driving component is horizontally mounted on the mounting base. The moving direction of the driving end of the driving component is perpendicular to the opening end of the positioning cavity. An assembly block is provided on the driving end. The clamping block and the anti-detachment block are stacked and mounted on the assembly block.

[0013] In the above-mentioned spot welding fixture for the inner and outer panels of the left front door rearview mirror, the positioning component further includes a limiting block. The limiting block has a mutually perpendicular support surface and a positioning surface. An assembly plate is connected to the inner wall of the first main body. An extension column is formed on the assembly plate. The support surface is used to support the extension column so that the positioning surface can be close to the assembly plate.

[0014] In the above-mentioned spot welding fixture for the inner and outer panels of the left front door rearview mirror, the fixture plate may also be provided with an extension block, and the support block is connected to the top of the extension block so that the support block can be in the required position to stably support the first main body or the second main body.

[0015] In the aforementioned spot welding fixture for the inner and outer panels of the left front door rearview mirror, the extension block includes a mounting part and a support part. The mounting part has a connecting hole, which can be installed on the fixture plate by fasteners. The support part is used to connect the support block, and an extension part is connected between the support part and the mounting part so that the support block can extend into the bottom wall of the first main body or the second main body and provide support.

[0016] In the above-mentioned spot welding fixture for the inner and outer panels of the left front door rearview mirror, the first clamping component includes a clamping cylinder and a pressing block. The clamping cylinder is disposed on the fixture plate, and a movable block is connected to the output end of the clamping cylinder. The pressing block is connected to the end of the movable block away from the output end, for pressing the outer panel against the inner panel.

[0017] The aforementioned spot welding fixture for the inner and outer panels of the left front door rearview mirror also includes:

[0018] A fixed bracket is provided on the tooling plate, and a first locking block is provided at the top of the fixed bracket. Locking cone blocks are symmetrically arranged on the first locking block.

[0019] The connecting frame and the pickup cylinder are provided. One end of the connecting frame is installed on the top of the fixed bracket, and the other end is used to connect to an external robot arm. The pickup cylinder is installed on the connecting frame, and a second locking block is connected to the output end of the pickup cylinder. The second locking block is provided with a locking cone groove, which is movably engaged and pressed against the locking cone block.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] (1) The spot welding fixture for the inner and outer panels of the left front door rearview mirror of this utility model provides stable support for the installation of the main body through several support blocks. By using the design of the straightening block passing through the recess and sticking to its inner wall, the two protrusions are precisely aligned, so that the positioning pin can smoothly pass through the bending part. In addition, the anti-detachment block further restricts the fixation of the second bending part. As the clamping block further clamps and fixes the first bending part, it effectively prevents the two bending parts from deviating in position during the welding process, ensuring the aesthetics and welding quality of the final product.

[0022] (2) The height difference between the pressing block and the anti-detachment block is adjusted by adjusting the shims. The operation is simple and convenient, effectively making up for the processing errors between the parts, and also providing a guarantee for the stable pressing of the first bending part and the precise positioning of the second bending part.

[0023] (3) The design of the extension section allows the tooling plate to be supported in a limited space, ensuring that the support block can be accurately supported in the required position of the main body, thereby ensuring the smoothness of the spot welding machine during welding operations. Attached Figure Description

[0024] Figure 1 This is a perspective view of this application;

[0025] Figure 2 This is a schematic diagram of the installation structure between the locating pin and the straightening block and the bent part;

[0026] Figure 3 This is a schematic diagram of the installation structure between the inner and outer plates, support blocks, and limit blocks;

[0027] Figure 4 This is an exploded view of the area between the second clamping element and the positioning cavity;

[0028] Figure 5 This is a schematic diagram of the installation structure of the first locking block, the second locking block, and the pickup cylinder on the tooling plate.

[0029] In the figure, 10 is the inner plate; 100 is the first main body; 100a is the assembly plate; 100b is the extension column; 101 is the first curved part; 11 is the outer plate; 110 is the second main body; 111 is the second curved part; 120 is the positioning cavity; 121 is the recess; and 122 is the protrusion.

[0030] 2. Tooling plate; 20. Support block; 21. Extension block; 210. Mounting part; 211. Support part; 212. Extension part;

[0031] 3. Positioning component; 30. Positioning pin; 31. Correcting block; 310. Guide slope; 311. L-shaped clearance groove; 32. Limiting block; 320. Support surface; 321. Positioning surface;

[0032] 4. First clamping component; 40. Clamping cylinder; 400. Movable block; 41. Pressing block;

[0033] 5. Second clamping component; 50. Clamping block; 51. Anti-detachment block; 520. Adjusting shim; 53. Mounting base; 54. Driving component; 540. Assembly block;

[0034] 60. Fixed bracket; 61. First locking block; 610. Locking cone block; 62. Connecting frame; 63. Pick-up cylinder; 64. Second locking block; 640. Locking cone groove. Detailed Implementation

[0035] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0036] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indication will also change accordingly.

[0037] Example 1:

[0038] like Figures 1 to 5 As shown, this utility model discloses a spot welding fixture for the inner and outer panels 11 of a left front door rearview mirror, used to achieve the positioning and installation of the inner panel 10 and the outer panel 11. It includes: a fixture plate 2 with several support blocks 20; the inner panel 10 having a first main body 100 and a first curved portion 101; and the outer panel 11 having a second main body 110 and a second curved portion 111. The first curved portion 101 is stepped, and when the second curved portion 111 is pressed against the first curved portion 101, they together form a positioning cavity 120. The support blocks 20 are used to support the first main body 100 and the second main body 110 together on the fixture plate 2; and a positioning element 3, disposed on the fixture plate 2, including a positioning pin 30 and a straightening block 31. The first main body 100 or the second main body 110 is connected to the first curved portion 101 or the second curved portion 111. A recessed portion 121 and a protrusion 122 are formed between the two parts. The straightening block 31 moves through the recessed portion 121 and is pressed against its inner wall. After the two protrusions 122 are aligned and overlapped, the positioning pin 30 can pass through to restrict the displacement of the second curved portion 111 relative to the first curved portion 101. The first clamping member 4 and the second clamping member 5 are provided on the tooling plate 2. The first clamping member 4 is used to press the second main body 110 against the first main body 100. The second clamping member 5 is movably provided with a clamping block 50 and an anti-detachment block 51 in the horizontal direction. The clamping block 50 can extend into the positioning cavity 120 and move to press against the top wall of the first curved portion 101. The anti-detachment block 51 is installed on the clamping block 50 and can extend into the positioning cavity 120 synchronously with the clamping block 50 to restrict the displacement of the second curved portion 111 in the direction perpendicular to its tangent.

[0039] This embodiment is mainly for achieving the positioning and installation between the inner panel 10 and the outer panel 11. Specifically, as follows: Figures 1 to 4As shown, since the first main body 100 and the second main body 110, as well as the first curved part 101 and the second curved part 111, need to be welded together separately, the design of the support block 20 provides stable initial support for the main body of the inner and outer plates 11, reducing the time for subsequent adjustments. As the first main body 100 and the second main body 110 are pressed together, the straightening block 31 can pass through the recess 121 (located at the connection between the main body and the curved part), so that the protrusion 122 connected to the recess 121 can be pressed against the side wall of the straightening block 31, ensuring that the two straightening blocks on the inner and outer plates 11 can be aligned and overlapped, thereby ensuring the accuracy of the positioning pin 30 when it passes through the positioning curved part. It is also because of this that when the second curved part 111 presses against the first curved part 101, the two together form a positioning cavity 120. Furthermore, in this embodiment, by means of... Figure 4 At the rightmost end of the curved section shown, a clamping block 50 and an anti-detachment block 51 are provided. The clamping block 50 can extend horizontally into the positioning cavity 120 and press against the top wall of the first curved section 101, further improving the stability of the first curved section 101 on the support block 20. At the same time, the anti-detachment block 51 extends into the positioning cavity 120, restricting the displacement of the second curved section 111 along the direction perpendicular to its tangent. This dual positioning mechanism ensures the stability and accurate positioning of the main body and curved section on the inner and outer panels 11 during the welding process, preventing any slight movement that may affect the welding quality, and further improving the quality of the finished product. It can be seen that the entire positioning and installation process does not require much manual intervention, greatly reducing the intensity of manual labor. At the same time, with the cooperation of the straightening block 31, the clamping block 50, and the anti-detachment block 51, high-precision positioning and stable fixation of the inner and outer panels 11 of the left front door rearview mirror are achieved, effectively improving production efficiency and product quality.

[0040] Preferably, such as Figure 4 As shown, the clamping block 50 clamps the first curved portion 101, providing a stable support reference for the positioning and installation of the second curved portion 111. The anti-detachment block 51 limits the second curved portion 111, ensuring that the second curved portion 111 and the first curved portion 101 are stably and tightly attached. Thus, the two work together to effectively ensure the welding accuracy and stability of the inner and outer plates 11. By installing an adjusting shim 520 between the anti-detachment block 51 and the clamping block 50 to adjust the height difference between them, it is ensured that both the clamping block 50 and the anti-detachment block 51 can be in the designated position to achieve the required function. It should be noted that the adjusting shim 520 has different thicknesses. By replacing the adjusting shim 520 with one of different thicknesses, the distance between the clamping block 50 and the anti-detachment block 51 can be adjusted. The overall operation is simple, providing convenience for subsequent maintenance and replacement.

[0041] The corrective block 31 has a guide slope 310 and an L-shaped relief groove 311. The guide slope 310 is connected to the top of the L-shaped relief groove 311 and is used to guide the protrusion 122 into the L-shaped relief groove 311 and movably fit against the inner wall of the L-shaped relief groove 311.

[0042] like Figure 2 As shown, during the positioning and installation process, the protrusion 122 can slide into the L-shaped relief groove 311 by relying on the guide slope 310. The design of the guide slope 310 significantly reduces the positioning difficulty when manually placing it, allowing the protrusion 122 to enter the L-shaped relief groove 311 more smoothly, thus improving the accuracy and consistency of positioning. The L-shaped relief groove 311 provides an additional support point for the protrusion 122, avoiding positional interference with the extension 212 while ensuring that the straightening block 31 will not shift during operation, further enhancing the stability of the relative position of the inner and outer plates 11. This design simplifies the operation process and is easy to operate even for non-professionals. While reducing training costs and operational difficulty, it also ensures that the welding quality of the product is not affected.

[0043] The first clamping component 4 includes a clamping cylinder 40 and a pressing block 41. The clamping cylinder 40 is mounted on the tooling plate 2, and a movable block 400 is connected to the output end of the clamping cylinder 40. The pressing block 41 is connected to the end of the movable block 400 away from the output end, and is used to press the outer plate 11 against the inner plate 10.

[0044] like Figure 1 As shown, after the main body and the curved section are stably supported, the output end of the clamping cylinder 40 can drive the pressing block 41 to move above the main body or the curved section via the movable block 400. Once the pressing block 41 reaches the predetermined clamping position, the movable block 400 can drive the pressing block 41 to firmly press the outer plate 11 onto the inner plate 10, ensuring close contact between the two and guaranteeing the accuracy and stability of subsequent spot welding operations. It should be noted that the cylinder-driven clamping method can provide uniform and controllable pressure, ensuring no gaps between the outer plate 11 and the inner plate 10, thereby effectively improving the welding quality.

[0045] The second clamping component 5 also includes: a mounting base 53, which is disposed on the tooling plate 2; a driving component 54, which is horizontally disposed on the mounting base 53, wherein the moving direction of the driving end of the driving component 54 is perpendicular to the opening end of the positioning cavity 120, and an assembly block 540 is disposed on the driving end, and the clamping block 50 and the anti-detachment block 51 are stacked and mounted on the assembly block 540.

[0046] like Figure 4As shown, after the above-mentioned straightening block 31 aligns and presses the protruding plates on the inner and outer plates 11, the driving member 54 drives the pressing block 50 to extend into the inner wall of the positioning cavity 120 and press it against the top wall of the first curved part 101. This ensures the overall stability of the first curved part 101 and provides a solid reference for the positioning and installation of the second curved part 111. Since the anti-detachment block 51 in this embodiment is installed on the pressing block 50, the anti-detachment block 51 will inevitably extend into the positioning cavity 120 synchronously with the pressing block 50. The difference is that the anti-detachment block 51 can press against the inner top wall of the positioning cavity 120, thereby effectively limiting the displacement of the second curved part 111 along the direction perpendicular to its tangent, avoiding unnecessary lateral forces, and improving positioning accuracy. As the above-mentioned first pressing member 4 further presses and fixes the top wall of the outer plate 11, it ensures that the entire welding process is smoother, reduces the possibility of welding defects, and improves production efficiency. It should be noted that the driving component 54 in this embodiment can be replaced by other driving devices such as hydraulic drive or cylinder drive.

[0047] The positioning component 3 also includes a limiting block 32, on which a mutually perpendicular support surface 320 and a positioning surface 321 are formed. An assembly plate 100a is connected to the inner wall of the first main body 100, and an extension post 100b is formed on the assembly plate 100a. The support surface 320 is used to support the extension post 100b, so that the positioning surface 321 can be close to the assembly plate 100a.

[0048] Preferably, to further improve the stability of the inner plate 10 during positioning and support, this embodiment installs a limit block 32 on the tooling plate 2, such as... Figure 3 As shown, the limiting block 32 has a mutually perpendicular support surface 320 and a positioning surface 321. During the installation of the inner plate 10, the assembly plate 100a can be placed near the limiting block 32. After the support block 20 supports the first main body 100 on the inner plate 10, the support surface 320 provides a stable fulcrum, so that the extension column 100b can be accurately placed on the limiting block 32. The positioning surface 321 ensures that there is no gap between the assembly plate 100a and the limiting block 32, thereby achieving precise positioning.

[0049] More preferably, such as Figure 3 As shown, in this embodiment, an extension block 21 can also be provided on the tooling plate 2, and a support block 20 is connected to the top of the extension block 21 so that the support block 20 can be in the required position to provide stable support for the first main body 100 or the second main body 110. The design of the extension block 21 allows the support block 20 to adjust its height and position according to different models of rearview mirror inner and outer plates 11, enhancing the versatility and adaptability of the equipment, ensuring that it can provide stable support in the optimal position, optimizing the space utilization of the entire tooling plate 2, and improving the convenience of operation.

[0050] The extension block 21 includes a mounting part 210 and a support part 211. The mounting part 210 has a connection hole, which can be installed on the tooling plate 2 by fasteners. The support part 211 is used to connect the support block 20, and an extension part 212 is connected between the support part 211 and the mounting part 210 so that the support block 20 can extend into the bottom wall of the first main body 100 or the second main body 110 and be supported.

[0051] More preferably, such as Figure 3 As shown, in this embodiment, the mounting part 210 can be adjusted on the tooling plate 2 according to the actual shape of the product. Since threaded holes (not shown in the figure) are distributed at different positions on the tooling plate 2, after the connecting hole (not shown in the figure) is aligned with the threaded hole, a fastener can be passed through the connecting hole and connected into the threaded hole, thereby fixing the mounting part 210 in the required position. Preferably, the fastener in this embodiment can be replaced by screws, bolts, or other connecting parts. The extension block 21 in this embodiment is inclined, mainly to ensure that the support part 211 is accurately positioned on the bottom wall of the product at the specified position. In other words, the presence of the extension block 21 not only strengthens the overall structural rigidity of the support block 20, but also acts as an auxiliary device for height fine-tuning (adjusted directly during the manufacturing process), ensuring that even on parts with complex geometries, uniform support force can be provided.

[0052] Example 2:

[0053] This solution also includes: a fixed bracket 60, which is set on the tooling plate 2. The top of the fixed bracket 60 is equipped with a first locking block 61, and locking cone blocks 610 are symmetrically arranged on the first locking block 61; a connecting frame 62 and a pickup cylinder 63. One end of the connecting frame 62 is installed on the top of the fixed bracket 60, and the other end is used to connect to an external robot arm; the pickup cylinder 63 is installed on the connecting frame 62, and a second locking block 64 is connected to the output end of the pickup cylinder 63. The second locking block 64 is provided with a locking cone groove 640, which is movably engaged and pressed against the locking cone block 610.

[0054] like Figure 1 and Figure 5As shown, based on the above embodiment one, each fixture plate 2 can have the structure in this embodiment two. Specifically, when it is necessary to replace the fixture near the spot welding machine, the pick-up cylinder 63 can drive the second locking block 64 to gradually approach the first locking block 61 in the horizontal direction. The connection between the two locking blocks is effectively realized through the cooperation design of the locking cone groove 640 and the locking cone block 610. Relying on the installation and connection of the external robot (not shown in the figure) and the connecting frame 62, the entire fixture plate 2 and its components can be moved away from the spot welding machine to facilitate the placement of other fixtures. This structure replaces the manual handling of fixtures, reduces the need for manual intervention, improves work efficiency, and reduces labor intensity. Moreover, the locking cone block 610 and the locking cone groove 640 use the mutual abutment between the two inclined surfaces to improve the stability of the connection between the two locking blocks, thereby ensuring the smoothness of fixture replacement.

[0055] It should be noted that in this invention, the use of terms such as "first," "second," and "a" is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified. The terms "connection," "fixed," etc., should be interpreted broadly. For example, "fixed" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two elements or the interaction between two elements, unless otherwise explicitly specified. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0056] Furthermore, the technical solutions of the various embodiments of the present invention can be combined with each other, but only if they are based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by the present invention.

[0057] The specific embodiments described herein are merely illustrative of the spirit of the invention. Those skilled in the art to which this invention pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of the invention or exceeding the scope defined by the appended claims.

Claims

1. A spot welding fixture for the inner and outer panels of a left front door rearview mirror, used to achieve the positioning and installation of the inner and outer panels, characterized in that, include: A tooling plate is provided with several support blocks. The inner plate has a first main body and a first curved part, and the outer plate has a second main body and a second curved part. The first curved part is arranged in a stepped shape. When the second curved part is moved to press against the first curved part, they together form a positioning cavity. The support blocks are used to support the first main body and the second main body together on the tooling plate. A positioning element is provided on the tooling plate. The positioning element includes a positioning pin and a straightening block. The first main body or the second main body has a recessed portion and a protrusion that are connected to each other between the first curved portion or the second curved portion. The straightening block moves through the recessed portion and is close to its inner wall. After the two protrusions are aligned and overlapped, the positioning pin can pass through to restrict the second curved portion from displacing relative to the first curved portion. A first clamping member and a second clamping member are disposed on the tooling plate. The first clamping member is used to press the second main body onto the first main body. The second clamping member is movably disposed with a clamping block and an anti-detachment block in the horizontal direction. The clamping block can extend into the positioning cavity and movably press against the top wall of the first curved part. The anti-detachment block is installed on the clamping block and can extend into the positioning cavity synchronously with the clamping block to limit the displacement of the second curved part in the direction perpendicular to its tangent.

2. The spot welding fixture for the inner and outer panels of the left front door rearview mirror according to claim 1, characterized in that, An adjusting shim for adjusting the height difference between the clamping block and the anti-detachment block is also installed between them.

3. The spot welding fixture for the inner and outer panels of the left front door rearview mirror according to claim 1, characterized in that, The corrective block has a guide ramp and an L-shaped relief groove. The guide ramp is connected to the top of the L-shaped relief groove and is used to guide the protrusion into the L-shaped relief groove and movably fit against the inner wall of the L-shaped relief groove.

4. A spot welding fixture for the inner and outer panels of the left front door rearview mirror according to claim 1 or 2, characterized in that, The second clamping element also includes: A mounting base is provided on the tooling plate; A driving component is horizontally mounted on the mounting base. The moving direction of the driving end of the driving component is perpendicular to the opening end of the positioning cavity. An assembly block is provided on the driving end. The clamping block and the anti-detachment block are stacked and mounted on the assembly block.

5. A spot welding fixture for the inner and outer panels of the left front door rearview mirror according to claim 1, characterized in that, The positioning component further includes a limiting block, on which a mutually perpendicular support surface and a positioning surface are formed. An assembly plate is connected to the inner wall of the first main body, and an extension column is formed on the assembly plate. The support surface is used to support the extension column, so that the positioning surface can be close to the assembly plate.

6. A spot welding fixture for the inner and outer panels of the left front door rearview mirror according to claim 1, characterized in that, The tooling plate may also be provided with an extension block, and the support block is connected to the top of the extension block so that the support block can be in the required position to provide stable support for the first main body or the second main body.

7. A spot welding fixture for the inner and outer panels of the left front door rearview mirror according to claim 6, characterized in that, The extension block includes a mounting part and a support part. The mounting part has a connecting hole, which can be installed on the tooling plate by fasteners. The support part is used to connect the support block, and an extension part is connected between the support part and the mounting part so that the support block can extend into the bottom wall of the first main body or the second main body and provide support.

8. A spot welding fixture for the inner and outer panels of the left front door rearview mirror according to claim 1, characterized in that, The first clamping component includes a clamping cylinder and a pressing block. The clamping cylinder is disposed on the tooling plate, and a movable block is connected to the output end of the clamping cylinder. The pressing block is connected to the end of the movable block away from the output end, and is used to press the outer plate against the inner plate.

9. A spot welding fixture for the inner and outer panels of the left front door rearview mirror according to claim 1, characterized in that, Also includes: A fixed bracket is provided on the tooling plate, and a first locking block is provided at the top of the fixed bracket. Locking cone blocks are symmetrically arranged on the first locking block. The connecting frame and the pickup cylinder are provided. One end of the connecting frame is installed on the top of the fixed bracket, and the other end is used to connect to an external robot arm. The pickup cylinder is installed on the connecting frame, and a second locking block is connected to the output end of the pickup cylinder. The second locking block is provided with a locking cone groove, which is movably engaged and pressed against the locking cone block.

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