A tire mold switching mechanism for side wall rear wheel cover rolling

Abstract

The utility model discloses a kind of for side wall rear wheel cover edge rolling mould switching mechanism.The utility model includes: X direction servo electric slide platform and Y direction servo electric slide platform, Y direction servo electric slide platform is fixedly connected on the electric cylinder of X direction servo electric slide platform, the movement direction of X direction servo electric slide platform and Y direction servo electric slide platform is perpendicular relationship;Y direction servo electric slide platform is fixedly connected with heavy load gas slide platform, heavy load gas slide platform is fixedly connected with mounting frame, and mounting frame is fixedly connected with mould.The utility model, solve the problem of traditional edge rolling scheme in related art, which causes workpiece to adhere not strictly.

Description

Technical Field

[0001] This utility model relates to the field of workpiece conveying technology, and in particular to a mold switching mechanism for side panel rear wheel cover hemming. Background Technology

[0002] In related technologies, when rolling the hem of the side panels of automobiles, the traditional hem wrapping of the rear wheel arch of the side panel is generally done by rolling the hem along the edge of the main line vertical surface or by using a fixed fixture on the side panel production line. Rolling the hem along the edge of the main line is prone to problems such as poor fit between the mold and the workpiece, while the fixed fixture method has problems such as high switching costs and insufficient adaptability to multiple models.

[0003] Therefore, in related technologies, the traditional hemming method has not yet been effectively solved for the technical problem of poor workpiece fit. Utility Model Content

[0004] The purpose of this invention is to provide a mold switching mechanism for side panel rear wheel arch hemming, so as to solve the problem of poor workpiece fit caused by traditional hemming solutions in related technologies.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A tire mold switching mechanism for side panel rear wheel arch hemming includes: an X-axis servo electric slide and a Y-axis servo electric slide. The Y-axis servo electric slide is fixedly connected to the electric cylinder of the X-axis servo electric slide, and the movement directions of the X-axis servo electric slide and the Y-axis servo electric slide are perpendicular to each other. A heavy-duty pneumatic slide is fixedly connected to the Y-axis servo electric slide, and a mounting frame is fixedly connected to the heavy-duty pneumatic slide. A tire mold is fixedly connected to the mounting frame.

[0007] Further configuration: The X-axis servo electric slide includes a slide frame, a first guide rail, an elbow joint, an electric cylinder, and a foot; the Y-axis servo electric slide includes a support frame, a sliding module, a sliding plate, a buffer, and a floating joint; the heavy-duty pneumatic slide includes a support bracket, which includes a horizontal support surface and a vertical support surface, and the horizontal support surface is perpendicular to the vertical support surface; the mounting frame includes a frame body, a gun changing disc, a valve island, and a second connecting plate.

[0008] Further configuration: a first guide rail is installed on each side of the top of the slide frame, and a protective cover is also provided on the first guide rail; an electric cylinder is installed in the middle of the two first guide rails, and the electric cylinder reciprocates along the direction of the first guide rail; an elbow joint is fixedly connected to the top of the electric cylinder; six feet are installed at the bottom of the frame; and a drag chain is installed on the side of the frame.

[0009] Further configuration: The foot includes a foot plate, the bottom of which is fixedly connected to four support legs, and the top of which is fixedly connected to an adjustable foot.

[0010] Further configuration: the support frame is fixedly connected to the toggle joint; a sliding module is fixedly connected to the support frame, and the sliding module carries the sliding plate; a first guide rail is provided on each side of the sliding module, and a dust cover is provided above the first guide rail; a buffer is provided on each side of both ends of the support frame; a floating joint is provided at the center of the sliding plate.

[0011] Further configuration: the bracket is fixedly connected to the floating joint; the horizontal support surface is fixedly connected to the sliding plate; a first tank chain is provided on the side of the vertical support surface; and a second tank chain is provided on the side of the horizontal support surface.

[0012] Further configuration: the vertical support surface of the heavy-duty air slide is fixedly connected to a lifting device via a first connecting plate; the lifting device includes a first cylinder, a lifting frame, and a back plate; two parallel second guide rails are provided on the first connecting plate, the second guide rails are perpendicular to the ground, and the back plate slides on the first connecting plate via the second guide rails.

[0013] Further configuration: a positioning and locking unit is fixedly connected to each side of the heavy-duty air slide; a cylinder protective cover is provided on one side of the clamping cylinder of the positioning and locking unit, and a block is provided on the other side, the block is connected to the clamping cylinder through the pressure wall; the gasket abuts against the block.

[0014] Further configuration: the bottom of the frame body is fixedly connected to the top of the lifting device; a gun changing disc and a second connecting plate are fixedly connected to the frame body; a valve island is connected to the side of the frame body; the valve island includes an island body, a valve cover, and a soft curtain;

[0015] The island body is surrounded by a valve cover, and the outer surface of the island body is covered with a soft curtain.

[0016] Further configuration: the mold is fixedly connected to the second connecting plate; a calibration block is provided on the mold; a measuring hole cover plate is provided on the mold, the measuring hole cover plate is used to cover the measuring hole.

[0017] Compared with the prior art, the beneficial technical effects of this utility model are as follows:

[0018] 1. Traditional side panel rear wheel arch edging is generally done by rolling the edge on the vertical side of the main line or by using a fixed fixture on the side panel production line. Rolling the edge on the inner side can easily lead to problems with the mold and the workpiece not fitting tightly, while the fixed fixture method has problems with high switching costs and insufficient adaptability to multiple vehicle models. Therefore, adopting a flat mold switching mechanism can perfectly solve the problem and achieve the best cost performance of this edging process.

[0019] 2. The design of this side panel rear wheel cover rolling edge mold switching mechanism realizes the application of the side panel rear wheel cover rolling edge process on the side panel AGV reconfigurable welding production line, and can achieve flexible switching, and can be compatible with vehicle models with a maximum length difference of 2m.

[0020] In summary, the vertical layout of the X-axis and Y-axis servo electric slides, combined with components such as the first guide rail and electric cylinders, achieves precise lateral and longitudinal movement, ensuring the linearity and stability of the motion and meeting the positional accuracy requirements of different production processes. The lifting device of the heavy-duty pneumatic slide, driven by the first cylinder and working in conjunction with the second guide rail, achieves precise vertical lifting control. Simultaneously, the positioning and locking unit ensures that the lifting device is firmly fixed after reaching the designated position, preventing displacement caused by external forces, ensuring the accurate positioning of components such as molds, and improving process precision.

[0021] The feet, brackets, and other structures provide stable support for each slide, and the adjustable feet can adapt to different working environments. Protective covers and dust covers on each guide rail effectively block dust and debris, reduce component wear, and extend service life. Protective structures such as cylinder protective covers and valve covers protect internal components from external environmental influences, reduce the probability of failure, and improve equipment reliability and stability.

[0022] The tool changer facilitates quick tool replacement, improving production flexibility and efficiency; the second connecting plate enhances system scalability and compatibility; the valve island enables centralized control of the pneumatic system, reducing pipeline connections and space occupation. Cable chains store and protect cables and air hoses, resulting in a neat equipment layout and easy maintenance; the soft curtain design facilitates valve island operation and maintenance while also providing protection. Furthermore, this solution can adapt to mixed production of at least eight different vehicle models, and the bottom three-way heavy-duty slide design makes efficient use of space, meeting the requirements of AGV reconfigurable welding production lines and side-mounted workpiece flat conveying, resulting in a more rational spatial layout. Attached Figure Description

[0023] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0024] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0025] Figure 2 This is a schematic diagram of the load-bearing side panel of this utility model;

[0026] Figure 3 A schematic diagram of an X-axis servo electric slide;

[0027] Figure 4 A schematic diagram of a Y-axis servo electric slide;

[0028] Figure 5 This is a schematic diagram of a heavy-duty air slide.

[0029] Figure 6 This is a schematic diagram of the lifting device;

[0030] Figure 7 This is a schematic diagram of the combination of the lifting device, the Y-axis servo electric slide, and the heavy-duty pneumatic slide.

[0031] Figure 8 This is a schematic diagram of the mounting frame;

[0032] Figure 9 This is a schematic diagram of the tire mold;

[0033] Figure 10 This is a schematic diagram of the positioning and locking unit.

[0034] Reference numerals: 100, X-axis servo electric slide; 200, Y-axis servo electric slide; 300, heavy-duty pneumatic slide; 400, mounting frame; 500, mold; 600, positioning and locking unit; 101, cable chain; 102, protective cover; 103, electric cylinder; 104, foot plate; 105, adjusting foot; 106, toggle joint; 107, first guide rail; 201, sliding module; 202, dust cover; 203, sliding plate; 204, buffer. 205. Floating joint; 301. First tank chain; 302. Second tank chain; 303. Bracket; 3001. First cylinder; 3002. Back plate; 3003. Second guide rail; 3004. First connecting plate; 401. Valve island; 402. Gun changing disc; 403. Second connecting plate; 501. Calibration block; 502. Measuring hole cover; 601. Clamping cylinder; 602. Gasket; 603. Molded block; 604. Cylinder protective cover. Detailed Implementation

[0035] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0036] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0037] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0038] Example

[0039] Reference Figure 1 as well as Figure 2 This utility model discloses a tire mold switching mechanism for side and rear wheel arch hemming. The utility model includes: an X-axis servo electric slide 100 and a Y-axis servo electric slide 200. The Y-axis servo electric slide 200 is fixedly connected to the electric cylinder 103 of the X-axis servo electric slide 100. The movement directions of the X-axis servo electric slide 100 and the Y-axis servo electric slide 200 are perpendicular to each other. A heavy-duty pneumatic slide 300 is fixedly connected to the Y-axis servo electric slide 200. A mounting frame 400 is fixedly connected to the heavy-duty pneumatic slide 300. A tire mold 500 is fixedly connected to the mounting frame 400.

[0040] Specifically, this invention uses an X-axis servo electric slide 100 and a Y-axis servo electric slide 200 to move the switching mechanism laterally and longitudinally. A lifting device on a heavy-duty pneumatic slide 300 then lifts the mounting frame 400, thus raising the height of the tire mold 500. Since other parts of the sidewall require support components during sidewall hemming, the lifting device, by lifting the sidewall, provides support while leaving space underneath for an AGV (Automated Guided Vehicle), saving space and making the spatial layout more rational. The Y-axis servo electric slide 200 drives the lateral movement of the tire mold clamp and has two stop positions: a forward position and a reverse position. The forward position is locked by a locking mechanism.

[0041] Further configuration: X-axis servo electric slide 100 includes a slide frame, a first guide rail 107, an elbow joint 106, an electric cylinder 103, and a foot; Y-axis servo electric slide 200 includes a support frame, a sliding module 201, a sliding plate 203, a buffer 204, and a floating joint 205; heavy-duty pneumatic slide 300 includes a bracket 303, which includes a horizontal support surface and a vertical support surface, the horizontal support surface being perpendicular to the vertical support surface; mounting frame 400 includes a frame body, a gun changing disc 402, a valve island 401, and a second connecting plate 403.

[0042] Specifically, based on the current characteristics of AGV reconfigurable welding production lines and side panel workpiece horizontal conveying, this utility model can adapt to the mixed production of at least 8 vehicle models. The bottom adopts a three-way heavy-duty slide table. The two-way slide table in the horizontal direction is constructed using a servo electric cylinder 103 and a linear guide rail, while the vertical slide table is constructed using a large-diameter cylinder and a linear guide rail. The mold 500 fixture is horizontally mounted on the vertical slide table and connected to it via a zero-point and pneumatic quick-connect method. After the slide table is in position, it is positioned and locked by the positioning and locking unit 600 to prevent deviation of the slide table and subsequently the mold 500 due to gravity and pressure, thus avoiding edge rolling quality problems.

[0043] Reference Figure 3 A first guide rail 107 is installed on each of the two sides of the top of the slide frame, and a protective cover 102 is also provided on the first guide rail 107; an electric cylinder 103 is installed in the middle of the two first guide rails 107, and the electric cylinder 103 reciprocates along the direction of the first guide rail 107; the top of the electric cylinder 103 is fixedly connected to an elbow joint 106; six feet are installed at the bottom of the frame; a drag chain 101 is installed on the side of the frame. The feet include foot plates 104, four support legs are fixedly connected to the bottom of the foot plates 104, and adjustable feet 105 are fixedly connected to the top of the foot plates 104.

[0044] Specifically, an elbow joint 106 is fixedly connected to the top of the electric cylinder 103. The elbow joint 106 can buffer the impact force generated during the movement of the electric cylinder 103 to a certain extent, and can adapt to forces and movements in different directions, making the power transmission of the electric cylinder 103 more flexible and helping to improve the motion performance and stability of the entire system. Six feet are installed at the bottom of the frame, each foot including a foot plate 104, a support leg, and an adjustable foot 105. The support leg and foot plate 104 provide stable support for the slide frame, allowing the equipment to be placed firmly on the ground. The adjustable foot 105 can adjust the level and height of the frame according to actual needs to adapt to different working environments and production requirements, ensuring the installation accuracy and operational stability of the equipment.

[0045] Reference Figure 4 The support frame is fixedly connected to the elbow joint 106; a sliding module 201 is fixedly connected to the support frame, and the sliding module 201 carries the sliding plate 203; a first guide rail 107 is provided on each side of the sliding module 201, and a dust cover 202 is provided above the first guide rail 107; a buffer 204 is provided on each side of both ends of the support frame; a floating joint 205 is provided at the center of the sliding plate 203.

[0046] Specifically, the support frame is fixedly connected to the toggle joint 106, enabling the support frame to stably bear the force and motion transmitted from the toggle joint 106. The buffering and flexible transmission characteristics of the toggle joint 106 help reduce the impact on the support frame and ensure the smooth movement of the support frame and its components. A buffer 204 is installed on each side of the support frame. When the sliding plate 203 reaches its limit position or is impacted by external force during movement, the buffer 204 can buffer and dampen the shock, absorbing impact energy and preventing rigid collisions between the sliding plate 203 and the support frame, thereby protecting the various components of the equipment from damage and improving the safety and service life of the equipment. The floating joint 205 located at the center of the sliding plate 203 allows the sliding plate 203 a certain degree of freedom and flexibility at the connection point, adapting to small displacements and angular changes in different directions. This reduces stress concentration caused by installation errors or deviations during movement, making the movement of the sliding plate 203 smoother. It also helps protect other connected components, improving the stability and reliability of the entire system.

[0047] Reference Figures 5-7 The bracket 303 is fixedly connected to the floating joint 205; the horizontal support surface is fixedly connected to the sliding plate 203; a first tank chain 301 is provided on the side of the vertical support surface; and a second tank chain 302 is provided on the side of the horizontal support surface.

[0048] Further configuration: The vertical support surface of the heavy-duty air slide 300 is fixedly connected to a lifting device via a first connecting plate 3004; the lifting device includes a first cylinder 3001, a lifting frame, and a back plate 3002; two parallel second guide rails 3003 are provided on the first connecting plate 3004, the second guide rails 3003 are perpendicular to the ground, and the back plate 3002 slides on the first connecting plate 3004 via the second guide rails 3003.

[0049] Specifically, two parallel and perpendicular second guide rails 3003 are provided on the first connecting plate 3004, and the back plate 3002 slides on the first connecting plate 3004 via the second guide rails 3003. The second guide rails 3003 provide precise guidance for the sliding of the back plate 3002, ensuring that the back plate 3002 can move vertically up and down during the lifting process, thereby ensuring that the lifting frame and components such as the mold 500 installed on it can rise and fall accurately, improving the lifting accuracy and stability. At the same time, the guide rails can also withstand a certain lateral force, enhancing the rigidity and anti-interference ability of the system, preventing the back plate 3002 from shaking or shifting during the lifting process, and ensuring the reliability and safety of the entire lifting device. The lifting device is used to realize the vertical lifting and lowering of the mold clamp, and has two stop positions (rising position and falling position). The rising position is locked by a locking mechanism.

[0050] Reference Figure 10 Each side of the heavy-duty air slide 300 is fixedly connected to a positioning and locking unit 600; a cylinder protective cover 604 is provided on one side of the clamping cylinder 601 of the positioning and locking unit 600, and a block 603 is provided on the other side. The block 603 is connected to the clamping cylinder 601 through a pressure wall; the gasket 602 abuts against the block 603.

[0051] Specifically, the positioning and locking unit 600 is used for the retracting lifting device. One positioning and locking unit 600 is fixedly connected to each side of the heavy-duty air slide 300. Its main function is to accurately position and lock the lifting device. When the lifting device reaches the designated position, the positioning and locking unit 600 ensures that it remains in that position, preventing displacement due to external forces or other factors. This ensures the accuracy of the position of components such as the mold 500, which is crucial for improving the precision of processes such as side panel hemming. The mold block 603 is connected to the clamping cylinder 601 via a pressure wall. When the clamping cylinder 601 actuates, the mold block 603 transmits force to the lifting device under the action of the pressure wall, achieving clamping and positioning. The shape and structural design of the mold block 603 can be optimized according to the specific shape and requirements of the lifting device to ensure good contact and uniform force distribution. The gasket 602 abuts against the block 603. Its function is to adjust the gap and pressure distribution between the block 603 and the lifting device, so that the clamping force is more uniform. At the same time, it can also play a certain buffering role, avoid rigid contact between the block 603 and the lifting device, prevent damage to the components, and further improve the accuracy and reliability of positioning and locking.

[0052] Reference Figure 8 The bottom of the frame body is fixedly connected to the top of the lifting device; a gun changing plate 402 and a second connecting plate 403 are fixedly connected to the frame body; a valve island 401 is connected to the side of the frame body; the valve island 401 includes an island body, a valve cover and a soft curtain; a valve cover is provided around the island body, and a soft curtain is provided on the outer surface of the island body.

[0053] Specifically, the main body of the valve island 401 is the core component, integrating various valves and control elements. It precisely controls the flow direction, pressure, and volume of gas, thereby achieving precise control of pneumatic components such as the lifting device and the heavy-duty pneumatic slide 300, ensuring stable equipment operation and process accuracy. The valve guards surrounding the main body protect the internal components of the valve island 401 from external environmental factors such as dust, moisture, and impacts, preventing damage and malfunctions, extending the service life of the valve island 401, and improving system stability and reliability. The soft curtain on the outer surface of the main body further prevents dust and debris from entering the valve island 401. Furthermore, the curtain can be easily opened when operation or maintenance is required, without hindering access and operation, while also providing some protection when not in use.

[0054] Reference Figure 9 The mold 500 is fixedly connected to the second connecting plate 403; a calibration block 501 is provided on the mold 500; a measuring hole cover plate 502 is provided on the mold 500 to cover the measuring hole. The measuring hole cover plate 502 is used to cover the measuring hole, so that when it is necessary to perform coordinate measuring on the mold 500, the measuring hole can be directly measured.

[0055] The working principle and beneficial effects of this utility model are as follows: The vertical layout of the X-axis and Y-axis servo electric slides, combined with components such as the first guide rail 107 and the electric cylinder 103, achieves precise lateral and longitudinal movement, ensuring the linearity and stability of the motion and meeting the positional accuracy requirements of different production processes. The lifting device of the heavy-duty pneumatic slide 300, driven by the first cylinder 3001, works in conjunction with the second guide rail 3003 to achieve precise vertical lifting control. Simultaneously, the positioning and locking unit 600 ensures that the lifting device is firmly fixed after reaching the designated position, preventing displacement caused by external forces, ensuring the accurate positioning of components such as the mold 500, and improving process accuracy.

[0056] The feet, brackets 303, and other structures provide stable support for each slide, and the adjustable feet 105 can adapt to different working environments. The protective covers 102 and dust covers 202 equipped on each guide rail effectively block dust and debris, reduce component wear, and extend service life. Protective structures such as cylinder protective covers 604 and valve covers protect internal components from external environmental influences, reduce the probability of failure, and improve equipment reliability and stability.

[0057] The tool changer 402 facilitates quick tool changes, improving production flexibility and efficiency; the second connecting plate 403 enhances system scalability and compatibility; the valve island 401 enables centralized control of the pneumatic system, reducing pipeline connections and space occupation. The cable chain 101 stores and protects cables and air hoses, keeping the equipment layout neat and facilitating maintenance and management; the soft curtain design facilitates the operation and maintenance of the valve island 401 while also providing protection. Furthermore, this solution can adapt to mixed production of at least eight vehicle models, and the bottom three-way heavy-duty slide design makes efficient use of space, meeting the requirements of AGV reconfigurable welding production lines and side-mounted workpiece flat conveying, resulting in a more rational spatial layout.

[0058] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A mold switching mechanism for side wall rear wheel house rolling, characterized by, include: X-axis servo electric slide (100) and Y-axis servo electric slide (200), wherein the Y-axis servo electric slide (200) is fixedly connected to the electric cylinder (103) of the X-axis servo electric slide (100), and the movement directions of the X-axis servo electric slide (100) and the Y-axis servo electric slide (200) are perpendicular to each other. A heavy-duty pneumatic slide (300) is fixedly connected to the Y-axis servo electric slide (200), a mounting frame (400) is fixedly connected to the heavy-duty pneumatic slide (300), and a mold (500) is fixedly connected to the mounting frame (400).

2. A mold switching mechanism for side wall rear wheel house hemming according to claim 1, characterized in that, include: The X-axis servo electric slide (100) includes a slide frame, a first guide rail (107), an elbow joint (106), an electric cylinder (103), and a foot. The Y-axis servo electric slide (200) includes a support frame, a sliding module (201), a sliding plate (203), a buffer (204), and a floating joint (205). The heavy-duty air slide (300) includes a bracket (303), the bracket (303) includes a horizontal support surface and a vertical support surface, the horizontal support surface being perpendicular to the vertical support surface; The mounting frame (400) includes a frame body, a gun changing disc (402), a valve island (401), and a second connecting plate (403).

3. A mold switching mechanism for side wall rear wheel house hemming according to claim 2, characterized in that, include: The first guide rail (107) is installed on each side of the top of the slide frame, and a protective cover (102) is also provided on the first guide rail (107). The electric cylinder (103) is installed between the two first guide rails (107), and the electric cylinder (103) reciprocates along the direction of the first guide rail (107); The top of the electric cylinder (103) is fixedly connected to the toggle joint (106). The frame is fitted with six feet at its bottom; A cable chain (101) is installed on the side of the frame.

4. A mold switching mechanism for side wall rear wheel house hemming according to claim 3, characterized in that, include: The foot includes a foot plate (104), the bottom of which is fixedly connected to four support legs, and the top of which is fixedly connected to an adjustable foot (105).

5. A mold switching mechanism for side wall rear wheel house hemming according to claim 2, characterized in that, include: The support frame is fixedly connected to the elbow joint (106); A sliding module (201) is fixedly connected to the support frame, and the sliding module (201) carries the sliding plate (203). The sliding module (201) has a first guide rail (107) on each side, and a dust cover (202) is provided above the first guide rail (107). A buffer (204) is provided on each side of both ends of the support frame. A floating joint (205) is provided at the center of the sliding plate (203).

6. A mold switching mechanism for side wall rear wheel house rolling according to claim 2, characterized in that, include: The bracket (303) is fixedly connected to the floating joint (205); The horizontal support surface is fixedly connected to the sliding plate (203); The side of the vertical support surface is provided with a first tank chain (301). A second tank chain (302) is provided on the side of the horizontal support surface.

7. A mold switching mechanism for side wall rear wheel house rolling according to claim 6, characterized in that, include: The vertical support surface of the heavy-duty air slide (300) is fixedly connected to a lifting device via a first connecting plate (3004); The lifting device includes a first cylinder (3001), a lifting frame, and a back plate (3002). The first connecting plate (3004) is provided with two parallel second guide rails (3003), the second guide rails (3003) are perpendicular to the ground, and the back plate (3002) slides on the first connecting plate (3004) through the second guide rails (3003).

8. A mold switching mechanism for side wall rear wheel house hemming according to claim 7, characterized in that, include: A positioning and locking unit (600) is fixedly connected to each side of the heavy-duty air slide (300). The positioning and locking unit (600) has a cylinder protective cover (604) on one side of the clamping cylinder (601) and a block (603) on the other side. The block (603) is connected to the clamping cylinder (601) through a pressure wall. The gasket (602) abuts against the block (603).

9. A mold switching mechanism for side wall rear wheel house rolling according to claim 7, characterized in that, include: The bottom of the main frame body is fixedly connected to the top of the lifting device; The frame body is fixedly connected to a gun changing plate (402) and a second connecting plate (403). A valve island (401) is connected to the side of the main frame body. The valve island (401) includes an island body, a valve cover, and a soft curtain; A valve cover is provided around the main body of the island, and the outer surface of the main body of the island is provided with a soft curtain.

10. A mold switching mechanism for side wall rear wheel house rolling according to claim 2, characterized in that, include: The mold (500) is fixedly connected to the second connecting plate (403); The model (500) is provided with a calibration block (501); The mold (500) is provided with a measuring hole cover plate (502), which is used to cover the measuring hole.

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