A rolling tool for an automobile outer water-cut bright strip

Abstract

This application relates to the field of automotive parts technology, specifically a rolling fixture for automotive exterior water-cut trim. The fixture includes a frame and a worktable on top of the frame, with a pressing seat mounted on the worktable. The pressing seat includes an arc-shaped base and a lifting cylinder located at the bottom of the arc-shaped base. The arc-shaped base is used to hold pre-assembled automotive exterior water-cut trim assemblies. A pressing assembly is located on the top of the pressing seat. The pressing assembly includes a pressure roller and a movable frame for mounting the pressure roller. The movable frame is slidably mounted on a slide rail. The pressure roller moves along the arc-shaped base via a positioning mechanism connected to the movable frame. The pressure roller is mounted at the output end of an adjusting cylinder, which drives the pressure roller to apply pressure to the pre-assembled automotive exterior water-cut trim assembly placed on the arc-shaped base. This application enables three-dimensional arc bending forming of the exterior water-cut trim assembly, fully absorbing machining tolerances, solving the problem of curvature direction adjustment, avoiding assembly quality problems caused by bending springback and machining tolerances, and improving the assembly qualification rate.

Description

Technical Field

[0001] This application relates to the field of automotive parts technology, and in particular to a rolling tool for automotive exterior water-cut strips. Background Technology

[0002] The external water-cutting assembly mainly consists of a frame body and a bright strip. The frame body is produced through a composite extrusion process using rubber sealing strips and aluminum strips of equal cross-section, while the bright strip is produced through an extrusion process using aluminum rods of equal cross-section. The external water-cutting assembly is installed between the door frame and the window glass. When the window is raised or lowered, it cuts away water droplets, water vapor, and dust from the glass surface, hence the name "water cutter." The metallic bright strip serves as a decorative element, enhancing the appearance and elevating the car's perceived quality.

[0003] The metal trim strip is typically made of stainless steel or aluminum and is C-shaped. The rubber sealing strip needs to be embedded into the C-shaped groove of the metal trim strip. Because the sealing strip and trim strip need to be tightly joined, considerable force is required during assembly. The external weatherstripping assembly has the following characteristics: First, the metal trim strip is usually very thin, generally less than 1 mm thick, and the thickness of the metal skeleton embedded in the rubber sealing strip is also very thin. Improper force or incorrect assembly direction during assembly can cause deformation or damage to the metal trim strip and rubber sealing strip. Second, due to automotive styling requirements, the external weatherstripping assembly has a three-dimensional curvature. The extruded trim strip and sealing strip are assembled after three-dimensional bending. Because bending has a springback effect and there are processing tolerances, deformation or damage to the sealing strip and trim strip is easily caused when assembling with the glass groove of the car window, affecting assembly quality and effect, and resulting in higher production costs.

[0004] Most existing automotive external water cutter assembly fixtures adopt integral assembly, which cannot fully absorb machining tolerances, nor can they solve the problems of adjusting the pressure, curvature direction and assembly direction of different parts, resulting in low assembly qualification rate and high production cost. Utility Model Content

[0005] In order to overcome the problems existing in the prior art, this application provides a rolling tool for automotive exterior water-cut bright stripes.

[0006] The rolling tooling for automotive exterior water-cut strips provided in this application adopts the following technical solution:

[0007] A rolling fixture for automotive exterior water-cut strips includes a frame, which includes a body and a worktable mounted on top of the body. A pressing seat is mounted on the worktable. The pressing seat includes an arc-shaped base and a lifting cylinder located at the bottom of the arc-shaped base. The arc-shaped base is used to place a pre-assembled automotive exterior water-cut strip assembly. A pressing assembly is provided on the top of the pressing seat. The pressing assembly includes a pressure roller and a movable frame for mounting the pressure roller. The movable frame is slidably mounted on a slide rail, and the pressure roller moves along the arc-shaped base through a positioning mechanism connected to the movable frame. The pressure roller is mounted at the output end of an adjusting cylinder, which drives the pressure roller to apply pressure to the pre-assembled automotive exterior water-cut strip assembly placed on the arc-shaped base.

[0008] Furthermore, the slide rail frame includes a base and a positioning plate. A first slide rail is mounted on the base, and both ends of the base are connected to the top positioning plate via I-beam brackets. The positioning plate has strip-shaped perforations adapted to the rails on the arc-shaped base. The positioning mechanism includes a slider and a second slide rail. The bottom and top of the slider are slidably connected to the first and second slide rails, respectively, and the first and second slide rails are vertically distributed. A positioning block is fixedly mounted on the top of the second slide rail, with a positioning rod at its top passing through the strip-shaped perforation. Buffers are also installed at both ends of the first slide rail. These buffers cushion the slider on the first slide rail and include an L-shaped base and a buffer rod horizontally penetrating the L-shaped base. The buffer rod includes a buffer block and a buffer tube connected to the end of the buffer block away from the slider. The buffer block is slidably mounted inside the buffer tube along the length of the buffer tube via the rod, and the free end of the rod is connected to the inner end of the buffer tube via a buffer spring.

[0009] Furthermore, the movable frame includes an L-shaped frame and a U-shaped mounting bracket. The U-shaped mounting bracket is used to mount the pressure rollers and is slidably mounted on the inner wall of the L-shaped frame. A connecting block on the side of the U-shaped mounting bracket is slidably connected to a third slide rail on the L-shaped frame. An adjusting cylinder is mounted on the top of the L-shaped frame and drives the U-shaped mounting bracket to rise and fall via its output shaft. A limit wheel is also installed on one side of the bottom opening of the U-shaped mounting bracket, and the limit wheel corresponds to the top surface of a blocking block mounted on the worktable. The blocking block is located at both ends of the arc-shaped frame, and the side of the blocking block closest to the arc-shaped frame has an inclined surface facing the limit wheel, wherein the top height of the inclined surface is greater than the bottom height of the blocking block. A handle is also installed on the top of the L-shaped mounting plate, with the handle located on the side away from the slide rail frame.

[0010] Furthermore, a mounting plate is installed at the bottom of the workbench, with a lifting cylinder installed at the center of the side of the mounting plate, and guide slide rods connected to the arc-shaped seat are installed at both ends of the mounting plate.

[0011] In summary, this application includes at least one of the following beneficial technical effects:

[0012] 1. This application allows the pre-installed automotive exterior water-cutting strip assembly to be placed in the arc-shaped seat of the press-fitting base. The pressure roller in the press-fitting assembly can move along the arc-shaped seat through the positioning mechanism connected to the moving frame, and the adjusting cylinder can drive the pressure roller to apply pressure. The pressing pressure can be precisely adjusted according to the needs of different parts, avoiding deformation or damage to the metal strip and rubber sealing strip due to improper pressure.

[0013] 2. This application enables the pressure roller to move along a three-dimensional spatial trajectory by setting up a slide rail frame, positioning mechanism, etc., thereby realizing the three-dimensional arc bending and forming of the outer water shear assembly, fully absorbing processing tolerances, solving the problem of curvature direction adjustment, and avoiding assembly quality problems caused by bending springback and processing tolerances.

[0014] 3. The buffers at both ends of the first slide rail can buffer the slider, reduce the impact on the press assembly during movement, and further protect the tooling and the outer water-cut strip assembly. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of a rolling tool for automotive exterior water-cut bright strips;

[0016] Figure 2 yes Figure 1 Enlarged view of the intermediate pressure assembly;

[0017] Figure 3 This is a schematic diagram of the overall bottom structure of a rolling tool for applying bright trim strips to the exterior of automobiles.

[0018] Explanation of reference numerals in the attached drawings: 1. Frame; 11. Frame body; 12. Workbench; 121. Blocking block; 122. Mounting plate; 123. Guide slide bar; 2. Pressing seat; 21. Arc-shaped seat body; 22. Lifting cylinder; 3. Pressing assembly; 31. Pressure roller; 32. Moving frame; 321. L-shaped frame body; 322. U-shaped mounting frame; 323. Connecting block; 324. Third slide rail; 325. Limiting wheel; 326. Handle; 3 3. Slide rail frame; 331. Base; 332. Positioning plate; 3321. Strip-shaped perforation; 333. First slide rail; 334. I-beam bracket; 335. Buffer; 3351. L-shaped base; 3352. Buffer rod; 3353. Buffer block; 3354. Buffer tube; 34. Adjusting cylinder; 35. Positioning mechanism; 351. Slider; 352. Second slide rail; 353. Positioning block; 354. Positioning rod. Detailed Implementation

[0019] The following is in conjunction with the appendix Figure 1-3 This application will be described in further detail.

[0020] This application discloses a rolling fixture for automotive exterior water-cut strips.

[0021] Reference Figure 1 , Figure 2 and Figure 3 A rolling fixture for automotive exterior water-cut strips includes a frame 1, which includes a frame body 11 and a worktable 12 mounted on top of the frame body 11. A pressing seat 2 is mounted on the worktable 12. The pressing seat 2 includes an arc-shaped seat body 21 and a lifting cylinder 22 located at the bottom of the arc-shaped seat body 21. The arc-shaped seat body 21 is used to place pre-installed automotive exterior water-cut strip assemblies. A pressing assembly 3 is provided on the top of the pressing seat 2. The pressing assembly 3 includes a pressure roller 31 and a movable frame 32 for mounting the pressure roller 31. The movable frame 32 is slidably mounted on a slide rail frame 33, and the pressure roller 31 moves along the arc-shaped seat body 21 through a positioning mechanism 35 connected to the movable frame 32. The pressure roller 31 is mounted at the output end of an adjusting cylinder 34, which is used to drive the pressure roller 31 to apply pressure to the automotive exterior water-cut strip assembly pre-installed on the arc-shaped seat body 21. In use, the pre-assembled automotive exterior water-cutting strip assembly is first placed on the arc-shaped seat 21 of the press-fitting base 2. Pre-assembly means that the rubber sealing strip is initially placed in the C-shaped groove of the metal strip but not completely tightly joined. The curvature of the arc-shaped seat 21 matches the three-dimensional curvature of the automotive exterior water-cutting strip assembly, ensuring stable positioning of the pre-assembled assembly. Then, the lifting cylinder 22 at the bottom of the press-fitting base 2 is activated, driving the arc-shaped seat 21 and the pre-assembled assembly above it to rise and fall as a whole, adjusting to the assembly height that matches the pressure roller 31 in the press-fitting assembly 3. Next, with the help of the positioning mechanism 35 of the press-fitting assembly 3, the height of the pressure roller 31 is adjusted by the adjusting cylinder 34, so that the adjusting cylinder 34 drives the pressure roller 31 to apply a set amount of pressure to the pre-assembled assembly, driving the moving frame on which the pressure roller 31 is installed. 32 moves along the slide rail 33, so that the pressure roller 31 can conform to the arc trajectory of the arc-shaped seat 21; under the continuous action of the positioning mechanism 35, the moving frame 32 carries the pressure roller 31 and moves slowly along the arc-shaped seat 21. During the movement, the pressure roller 31 continuously rolls the joint between the metal bright strip and the rubber sealing strip of the pre-assembled assembly. Through controllable pressure, the rubber sealing strip is tightly pressed into the C-shaped groove of the metal bright strip. At the same time, the matching arc of the arc-shaped seat 21 and the rolling pressure method of the pressure roller 31 can absorb the processing tolerance caused by the three-dimensional bending springback of the automotive outer water-cutting bright strip assembly. Moreover, the pressing pressure can be precisely adjusted by adjusting the cylinder 34, and the moving direction of the pressure roller 31 can be adjusted by the positioning mechanism 35 to match the assembly curvature direction, so as to finally complete the high-quality assembly of the outer water-cutting bright strip assembly.

[0022] Reference Figure 1 and Figure 2The slide rail frame 33 includes a base 331 and a positioning plate 332. A first slide rail 333 is mounted on the base 331. Both ends of the base 331 are connected to the top positioning plate 332 via I-shaped brackets 334. The positioning plate 332 has strip-shaped through holes 3321 that are adapted to the rails on the arc-shaped seat 21. The positioning mechanism 35 includes a slider 351 and a second slide rail 352. The bottom and top of the slider 351 are slidably connected to the first slide rail 333 and the second slide rail 352, respectively. The first slide rail 333 and the second slide rail 352 are perpendicularly distributed. A positioning block 353 is fixedly mounted on the top of the second slide rail 352. The positioning block 353 passes through the strip-shaped through hole 3321 through a positioning rod 354 at its top. Both ends of the first slide rail 333 are also equipped with buffers 335, which are used to buffer the slider 351 on the first slide rail 333. The buffers 335 include an L-shaped base 3351 and a buffer rod 3352 that runs horizontally through the L-shaped base 3351. The buffer rod 3352 includes a buffer block 3353 and a buffer tube 3354 connected to the end of the buffer block 3353 away from the slider 351. The buffer block 3353 is slidably installed in the buffer tube 3354 along the length of the buffer tube 3354 through the rod, and the free end of the rod is connected to the inner end of the buffer tube 3354 through a buffer spring. In the roll forming assembly of the automotive exterior water-cut bright strip assembly, the slide rail 33 is first fixed to the inner side of the workbench 12 via the base 331. The positioning plate 332 on its top and the I-shaped brackets 334 at both ends of the base 331 form a stable support structure. The strip-shaped perforation 3321 on the positioning plate 332 is pre-aligned with the track on the arc-shaped seat 21, providing a guiding reference for the subsequent movement of the positioning mechanism 35. Then, the positioning mechanism 35 is activated, in which the slider 351 moves horizontally along the first slide rail 333 on the base 331. The second slide rail 352, which is vertically distributed with the first slide rail 333 and connected to the top, drives the positioning block 353 at the top to move synchronously. The positioning rod 354 at the top of the positioning block 353 passes through the strip-shaped perforation 3321 on the positioning plate 332 and slides along the matching trajectory of the strip-shaped perforation 3321 and the arc-shaped seat 21. Through the vertical sliding cooperation between the first slide rail 333 and the second slide rail 352, the pressure roller 31 is accurately positioned and adjusted on the horizontal plane along the arc of the arc-shaped seat 21, ensuring that the pressure roller 31 can be accurately aligned with the part of the pre-assembled assembly to be rolled.When the slider 351 moves to the extreme positions at both ends along the first slide rail 333, the buffers 335 at both ends of the first slide rail 333 provide buffering. Specifically, the slider 351 first contacts the buffer block 3353 at the end of the buffer rod 3352, pushing the buffer block 3353 to drive the rod to slide inward along the length of the buffer tube 3354. At this time, the buffer spring inside the buffer tube 3354 is compressed, and the elastic deformation of the spring absorbs the impact force generated by the movement of the slider 351, avoiding direct collision between the slider 351 and the end of the slide rail frame 33, which would cause damage. At the same time, the sliding cooperation between the buffer block 3353 and the buffer tube 3354 further slows down the movement speed of the slider 351, realizing the smooth start and stop of the slider 351 on the first slide rail 333, ensuring the stability of the overall movement process of the positioning mechanism 35, and providing reliable support for the subsequent precise and smooth rolling assembly of the pressure roller 31.

[0023] Reference Figure 1 and Figure 2The movable frame 32 includes an L-shaped frame body 321 and a U-shaped mounting frame 322. The U-shaped mounting frame 322 is used to mount the pressure roller 31. The U-shaped mounting frame 322 is slidably mounted on the inner wall of the L-shaped frame body 321. The connecting block 323 on the side of the U-shaped mounting frame 322 is slidably connected to the third slide rail 324 on the L-shaped frame body 321. The adjusting cylinder 34 is mounted on the top of the L-shaped frame body 321 and drives the U-shaped mounting frame 322 to rise and fall through the output shaft of the adjusting cylinder 34. A limit wheel 325 is also installed on one side of the bottom opening of the U-shaped mounting frame 322. The limit wheel 325 corresponds to the top surface of the blocking block 121 installed on the worktable 12. The blocking block 121 is located at both ends of the arc-shaped frame, and the side of the blocking block 121 near the arc-shaped frame has an inclined surface facing the limit wheel 325. The top height of the inclined surface is greater than the bottom height of the blocking block 121. A handle 326 is also installed on the top of the L-shaped mounting plate 122, with the handle 326 located on the side away from the slide rail frame 33. When the pressure roller 31 performs rolling operation on the pre-installed outer water-cutting strip assembly, the operator holds the handle 326 on the top of the L-shaped frame 321 away from the slide rail frame 33, pushing the moving frame 32 to move along the slide rail frame 33. When it is necessary to adjust the pressure height and pressure of the pressure roller 31 on the pre-installed assembly, the adjusting cylinder 34 installed on the top of the L-shaped frame 321 is activated. The output shaft of the adjusting cylinder 34 drives the U-shaped mounting frame 322 to rise and fall along the inner wall of the L-shaped frame 321. At this time, the connecting block 323 on the side of the U-shaped mounting frame 322 slides and engages with the third slide rail 324 on the L-shaped frame 321 to ensure that the U-shaped mounting frame 322 rises and falls smoothly, thereby driving the pressure roller 31 installed on the U-shaped mounting frame 322 to accurately adjust its height to adapt to the rolling requirements of pre-installed assemblies of different thicknesses. When the moving frame 32 drives the pressure roller 31 to move along the trajectory of the arc-shaped base 21 to both ends of the arc-shaped base, the limiting roller 325 on the bottom opening side of the U-shaped mounting frame 322 will contact the top surface of the blocking block 121 at both ends of the arc-shaped base on the workbench 12. Since the blocking block 121 has an inclined surface with a top surface height greater than the bottom surface height on the side near the arc-shaped base, the limiting roller 325 will be guided and limited by the inclined surface when it rolls along the inclined surface, so as to prevent the moving frame 32 from moving too much and causing the pressure roller 31 to exceed the range of the arc-shaped base 21. At the same time, in conjunction with the buffer 335 on the slide rail frame 33, the stability of the moving frame 32 during the movement process is further ensured, and the pressure roller 31 is always within the preset trajectory to evenly roll the pre-assembled assembly, thereby improving the assembly quality.

[0024] Reference Figure 1 and Figure 3A mounting plate 122 is installed at the bottom of the workbench 12. The center of the side of the mounting plate 122 is used to install the lifting cylinder 22, and guide slide rods 123 connected to the arc-shaped seat 21 are installed at both ends of the mounting plate 122. The mounting plate 122 is fixed to the bottom of the workbench 12 as a support component. The lifting cylinder 22 is pre-installed at the center of its side, and the two ends of the mounting plate 122 are respectively assembled and connected to the guide slide rods 123 connected to the arc-shaped seat 21, forming a lifting structure with central drive and two-sided guidance. When it is necessary to adjust the height of the arc-shaped seat 21 and the pre-assembled assembly above it to match the rolling position of the pressure roller 31, the lifting cylinder 22 installed in the center of the mounting plate 122 is activated. The output shaft of the lifting cylinder 22 drives the arc-shaped seat 21 to rise and fall in the vertical direction. During this process, the guide slide rods 123 at both ends of the mounting plate 122 slide synchronously with the arc-shaped seat 21. Through the limiting effect of the guide slide rods 123, the arc-shaped seat 21 is prevented from deviating or shaking during the lifting and lowering process, ensuring that the arc-shaped seat 21 always maintains a horizontal state and rises and falls smoothly. Finally, the pre-assembled assembly is precisely adjusted to the rolling height that matches the pressure roller 31, ensuring the stable rolling of the pressure roller 31 in the future.

[0025] Working principle: In use, the pre-installed automotive exterior water-cutting strip assembly is first placed on the arc-shaped seat 21 of the pressing base 2. The arc-shaped seat 21 is then raised and lowered to the appropriate position by the lifting cylinder 22. Subsequently, the operator can push the moving frame 32 through the handle 326, causing the slider 351 of the positioning mechanism 35 to slide along the first slide rail 333. At the same time, the positioning rod 354 at the top of the positioning block 353 moves along the strip-shaped perforation 3321 of the positioning plate 332. The positioning rod 354 moves within the strip-shaped perforation 3321. During the movement, the second slider 351 can slide on the slider 351, and the second slide rail 352 located at the top of the slider 351 is perpendicular to the first slide rail 333, ensuring that the pressure roller 31 moves along the trajectory of the arc-shaped seat 21. During the sliding process or before the slider 351 slides, the adjusting cylinder 34 drives the U-shaped mounting bracket 322 to rise and fall along the third slide rail 324 of the L-shaped frame 321, driving the pressure roller 31 to apply appropriate pressure to the outer water-cut strip assembly on the arc-shaped seat 21, realizing the roll forming assembly. When the moving frame 32 moves to both ends of the arc-shaped seat 21, the limiting wheel 325 of the U-shaped mounting bracket 322 rolls along the inclined surface of the blocking block 121, and with the buffer 335, the slider 351 is buffered to avoid impact damage, thus completing the precise roll forming assembly of the automotive outer water-cut strip assembly.

[0026] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A rolling tool for automotive exterior water-cut strips, characterized in that: include The frame (1) includes a frame (11) and a worktable (12) mounted on the top of the frame (11). A pressing seat (2) is mounted on the worktable (12). Pressing seat (2), the pressing seat (2) includes an arc-shaped seat body (21) and a lifting cylinder (22) located at the bottom of the arc-shaped seat body (21). The arc-shaped seat body (21) is used to place the pre-installed automotive exterior water-cutting strip assembly, wherein the pressing seat (2) is provided with a pressing assembly (3) at the top. The pressing assembly (3) includes a pressing roller (31) and a movable frame (32) for mounting the pressing roller (31), wherein the movable frame (32) is slidably mounted on a slide rail frame (33), and the pressing roller (31) moves along the arc-shaped seat (21) via a positioning mechanism (35) connected to the movable frame (32). The pressing roller (31) is mounted at the output end of an adjusting cylinder (34), wherein the adjusting cylinder (34) is used to drive the pressing roller (31) to apply pressure to the automotive exterior water-cutting bright strip assembly pre-installed on the arc-shaped seat (21).

2. The rolling fixture for automotive exterior water-cut strips according to claim 1, characterized in that: The slide rail frame (33) includes a base (331) and a positioning plate (332). A first slide rail (333) is installed on the base (331). Both ends of the base (331) are connected to the positioning plate (332) on the top through I-shaped brackets (334). The positioning plate (332) has strip-shaped perforations (3321) that are adapted to the track on the arc-shaped seat (21).

3. The rolling fixture for automotive exterior water-cut strips according to claim 2, characterized in that: The positioning mechanism (35) includes a slider (351) and a second slide rail (352), wherein the bottom and top of the slider (351) are slidably connected to the first slide rail (333) and the second slide rail (352) respectively, and the first slide rail (333) and the second slide rail (352) are vertically distributed. A positioning block (353) is fixedly installed on the top of the second slide rail (352), wherein the positioning block (353) passes through a strip-shaped perforation (3321) through a positioning rod (354) on its top.

4. The rolling fixture for automotive exterior water-cut strips according to claim 3, characterized in that: The first slide rail (333) is also equipped with buffers (335) at both ends. The buffers (335) are used to buffer the slider (351) on the first slide rail (333). They include an L-shaped base (3351) and a buffer rod (3352) that runs horizontally through the L-shaped base (3351). The buffer rod (3352) includes a buffer block (3353) and a buffer tube (3354) connected to the end of the buffer block (3353) away from the slider (351). The buffer block (3353) is slidably installed in the buffer tube (3354) along the length of the buffer tube (3354) by the rod. The free end of the rod is connected to the inner end of the buffer tube (3354) by a buffer spring.

5. The rolling fixture for automotive exterior water-cut strips according to claim 1, characterized in that: The movable frame (32) includes an L-shaped frame (321) and a U-shaped mounting frame (322), wherein the U-shaped mounting frame (322) is used to install the pressure roller (31), and the U-shaped mounting frame (322) is slidably mounted on the inner wall of the L-shaped frame (321). The connecting block (323) on the side of the U-shaped mounting frame (322) is slidably connected to the third slide rail (324) on the L-shaped frame (321). The adjusting cylinder (34) is installed on the top of the L-shaped frame (321) and drives the U-shaped mounting frame (322) to rise and fall through the output shaft of the adjusting cylinder (34).

6. The rolling fixture for automotive exterior water-cut strips according to claim 5, characterized in that: The U-shaped mounting bracket (322) is also equipped with a limiting wheel (325) on one side of the bottom opening, and the limiting wheel (325) corresponds to the top surface of the blocking block (121) installed on the workbench (12). The blocking block (121) is located at both ends of the arc frame, and the side of the blocking block (121) near the arc frame is provided with an inclined surface facing the limiting wheel (325), wherein the top height of the inclined surface is greater than the bottom height of the blocking block (121).

7. The rolling fixture for automotive exterior water-cut strips according to claim 6, characterized in that: The top of the L-shaped frame (321) is also equipped with a handle (326), wherein the handle (326) is located on the side away from the slide rail frame (33).

8. The rolling fixture for automotive exterior water-cut strips according to claim 7, characterized in that: The bottom of the workbench (12) is equipped with an installation plate (122), wherein the center of the side of the installation plate (122) is used to install the lifting cylinder (22), and the two ends of the installation plate (122) are equipped with guide slide rods (123) that are connected to the arc-shaped seat (21).

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