Water gap cutting device for decorative part of back door guard plate of automobile

Abstract

The utility model discloses an automobile rear door guard plate decorating part water gap cutting device which comprises a bottom cabinet, a rectangular installation hole is formed in the upper end of the bottom cabinet, and a water gap cutting assembly is arranged in the rectangular installation hole. A carrying robot is arranged on one side of the bottom cabinet, and the carrying robot is fixedly connected with the mounting rod through a connecting rod; suckers are arranged below the two ends of the mounting rod, and a supporting rod is arranged above the mounting rod; first clamping jaws are installed at the lower ends of the supporting rods and the lower ends of the connecting rods correspondingly. According to the utility model, manual carrying is replaced by the carrying robot, so that the physical labor of workers is reduced, and the labor intensity is reduced; according to the automatic water gap cutting assembly, pneumatic scissors are adopted, the cutting accuracy and consistency are guaranteed, errors and damage possibly caused by manual operation are avoided, meanwhile, by accurately controlling the cutting position and depth, the production efficiency and the product quality are remarkably improved, and an efficient and reliable water gap cutting solution is provided for the automobile manufacturing industry.

Description

Technical Field

[0001] The utility model relates to the technical field of injection molded part processing, and particularly relates to a gate cutting device for an automobile rear door trim. Background Art

[0002] In the wave of modern industrial development, the automobile manufacturing industry, as an important pillar industry, has increasingly strict requirements for product quality and production efficiency. Automobile rear door trim, as an important part of the automobile appearance, not only bears the function of protecting the automobile rear door panel, but also becomes a key element to show the beauty and quality of the vehicle. In the manufacturing process, these trims are usually formed by plastic one-piece injection molding technology to efficiently and precisely construct their complex structures and delicate appearances.

[0003] However, although the injection molding technology brings many conveniences, it also brings a challenge: in the injection molding process, in order to optimize the injection efficiency and adapt to the designs of different shapes, multiple gates are often used for injection molding of the trims, resulting in multiple gates that need to be cut off on the formed trims. The traditional treatment method is mostly manual cutting. This method not only has low efficiency and high labor intensity, but also is difficult to ensure the accuracy and consistency of cutting, and cannot meet the requirements of modern automobile manufacturing industry for high-efficiency and high-quality production; although some automatic gate cutting devices have appeared on the market, these devices often have a single function and can only process one gate at a time. For trims with multiple gates, multiple operations are required to complete, which greatly reduces the production efficiency. In addition, multiple operations may also cause damage and deformation to the surface of the trims, further affecting the product quality.

[0004] Therefore, we propose a new gate cutting device for automobile rear door trim, aiming to solve the problems existing in the traditional methods through technological innovation and promote the development of the automobile manufacturing industry towards a more efficient and intelligent direction. Summary of the Invention

[0005] The purpose of the utility model is to provide a gate cutting device for an automobile rear door trim to solve the problems put forward in the above background art.

[0006] To achieve the above purpose, the utility model provides the following technical solutions:

[0007] A device for cutting the water inlet of a rear door trim of an automobile, comprising a base cabinet; a rectangular installation hole is opened at the upper end of the base cabinet, and a water inlet cutting assembly is arranged in the rectangular installation hole; a handling robot is arranged on one side of the base cabinet, and a connecting rod is arranged at the front end of the movable arm of the handling robot; two mounting rods are symmetrically mounted at both ends of the connecting rod, and the two ends of the two mounting rods are fixedly connected by a support rod; a suction cup is arranged at the lower end of the mounting rod, and the suction cup is fixedly connected with the mounting rod through a right-angle bracket; first clamping jaws are respectively arranged at the lower ends of the support rod and the connecting rod, and the first clamping jaws are arranged between the two mounting rods.

[0008] Preferably, a cross bar is further arranged between the two mounting rods, and both ends of the cross bar extend towards the outside of the mounting rod; second clamping jaws are respectively arranged below both ends of the cross bar, and the second clamping jaws are arranged obliquely.

[0009] Preferably, the water inlet cutting assembly comprises a fixed frame, and two short sides of the fixed frame are respectively fixedly connected with the inner walls at both ends of the rectangular installation hole; a plurality of clamps are respectively arranged on two long sides of the fixed frame, and a first pneumatic scissors and a second pneumatic scissors are respectively arranged in the clamps.

[0010] Preferably, a fixed clamping groove is arranged on the clamp, and the first pneumatic scissors and the second pneumatic scissors are respectively arranged in the fixed clamping groove; one side of the clamp is open, and a long clamping end and a short clamping end are respectively arranged on both sides of the opening of the clamp, and the long clamping end and the short clamping end are fixedly connected by a bolt.

[0011] Preferably, a movable block is fixedly connected to one end of the long clamping end away from the fixed clamping groove, and the movable block is movably connected with the fixed frame; a vertically arranged waist-shaped hole is opened on the movable block, and a positioning screw is arranged in the waist-shaped hole; a sliding groove is arranged along the length direction on the inner side of the fixed frame, and the front end of the positioning screw penetrates through the waist-shaped hole and extends into the sliding groove.

[0012] Preferably, a limiting groove is arranged along the inner wall of the inner circle of the fixed clamping groove, and limiting rings protruding outwards are respectively arranged on the outer walls of the first pneumatic scissors and the second pneumatic scissors; the limiting rings are arranged in the limiting groove, and the limiting rings can rotate in the limiting groove.

[0013] Preferably, the first pneumatic scissors are long-edge scissors, and the second pneumatic scissors are short-edge scissors.

[0014] Preferably, the suction cup, the first clamping jaw, the second clamping jaw, the first pneumatic scissors and the second pneumatic scissors are respectively communicated with an external air pump through an air duct.

[0015] Preferably, a movable cabinet door is opened on the side wall of the base cabinet, and a waste recycling box is arranged in the inner cavity of the base cabinet, and the waste recycling box is arranged opposite to the rectangular installation hole.

[0016] Preferably, adjustable feet are installed at the four corners of the bottom of the base cabinet, and rollers are installed on one side of the adjustable feet.

[0017] Compared with the prior art, the beneficial effects of the present utility model are as follows: In the present utility model, a handling robot replaces manual handling, reducing the physical labor of workers and lowering the labor intensity. Workers can focus on monitoring the operation status of equipment to ensure production safety and quality. The automated gate-cutting assembly uses pneumatic scissors, ensuring the accuracy and consistency of cutting, avoiding errors and damages that may be caused by manual operation. At the same time, by precisely controlling the cutting position and depth, the integrity of the surface of the decorative part is effectively protected. The pneumatic scissors are fixed to the fixed frame by a clamp and can be adjusted in position within the sliding groove through a movable block and a positioning screw, facilitating adjustment according to decorative parts of different sizes and shapes. A waste recycling box is provided inside the base cabinet, facilitating the collection of cut waste, keeping the working environment clean. Moreover, the design of the adjustable feet and rollers makes the device easy to move and place. The device is designed considering the requirements of decorative parts of different sizes and shapes. By adjusting the position and angle of the pneumatic scissors, different gate-cutting requirements can be met. In addition, the combined use of the first pneumatic scissors and the second pneumatic scissors can more effectively handle various complex gate structures. By introducing automation and robot technology, the present utility model significantly improves production efficiency and product quality, reduces labor intensity, and is easy to adjust and maintain, providing an efficient and reliable gate-cutting solution for the automotive manufacturing industry. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a schematic structural diagram of the present utility model;

[0019] Figure 2 is a schematic structural diagram of the gate-cutting assembly of the present utility model;

[0020] Figure 3 is a schematic structural diagram of the clamp of the present utility model;

[0021] Figure 4 is a schematic structural diagram of the first pneumatic scissors of the present utility model;

[0022] Figure 5 is a schematic structural diagram of the second pneumatic scissors of the present utility model;

[0023] Figure 6 is a schematic structural diagram of the connection between the mounting rod and the suction cup and the clamping jaw of the present utility model;

[0024] Figure 7 is Figure 6 an enlarged schematic diagram of the structure at position A shown.

[0025] Wherein: 1. Base cabinet; 2. Rectangular mounting hole; 3. Gate cutting assembly; 301. Fixed frame; 302. Clamp; 303. Fixed card slot; 304. First pneumatic scissors; 305. Second pneumatic scissors; 306. Long clamping end; 307. Short clamping end; 308. Bolt; 309. Movable block; 4. Decorative piece; 5. Handling robot; 6. Connecting rod; 7. Mounting rod; 8. Support rod; 9. Suction cup; 10. Right-angle bracket; 11. First clamping jaw; 12. Cross bar; 13. Second clamping jaw; 14. Kidney-shaped hole; 15. Positioning screw; 16. Slide groove; 17. Limit groove; 18. Limit ring; 19. Movable cabinet door; 20. Waste recycling box; 21. Adjustable foot; 22. Roller. Detailed implementation manners

[0026] The following further elaborates on the present utility model with reference to the accompanying drawings.

[0027] Please refer to Figures 1 to 7 For achieving the above object, the present utility model provides the following technical solutions:

[0028] An apparatus for trimming the water inlet of an automobile rear door trim, comprising a base cabinet 1, a rectangular mounting hole 2 is provided at the upper end of the base cabinet 1, and a water inlet trimming assembly 3 is arranged in the rectangular mounting hole 2; the water inlet trimming assembly 3 is installed in the rectangular mounting hole 2 of the base cabinet 1, and its main function is to perform the water inlet trimming operation on the automobile rear door trim 4. Water inlet trimming is a process step in automobile manufacturing, mainly used to remove the redundant parts generated during the molding process of the trim 4 to ensure the appearance and functionality of the trim 4; a handling robot 5 is installed on one side of the base cabinet 1 for automatically handling and positioning the trim 4 to be processed. The front end of the movable arm of the handling robot 5 extends upward above the base cabinet 1, and a connecting rod 6 is fixedly installed at the end of the movable arm. In this way, the handling robot 5 can move the connecting rod 6 and the clamping tool installed on it through the telescopic and rotational movements of the movable arm; two mounting rods 7 are symmetrically installed at both ends of the connecting rod 6, and both ends of the two mounting rods 7 are fixedly connected by a support rod 8; the connecting rod 6 is fixedly connected to the two symmetrically installed mounting rods 7 through the support rod 8 to form a stable structural framework. A suction cup 9 is provided at the lower end of the mounting rod 7, and the suction cup 9 is fixedly connected to the mounting rod 7 through a right-angle bracket 10. The suction cup 9 is used to adsorb and fix the trim 4 to be processed to ensure the stable position of the trim 4 during handling and processing; a first jaw 11 is installed at the lower ends of the support rod 8 and the connecting rod 6 respectively, and the first jaw 11 is arranged between the two mounting rods 7; the main function of the first jaw 11 is to assist in clamping the redundant water inlet on the trim 4 to prevent the water inlet waste from splashing everywhere during shearing; a cross bar 12 is further arranged between the two mounting rods 7, and both ends of the cross bar 12 extend outward toward the outside of the mounting rods 7; second jaws 13 are respectively arranged below both ends of the cross bar 12, and the second jaws 13 are inclined and form an angle with the mounting rods 7 directly to better adapt to the shape and processing requirements of the trim 4; the function of the second jaw 13 is the same as that of the first jaw 11, and it is also used to stabilize the position of the trim 4 and fix the water inlet during processing. The second jaw 13 is more targeted at clamping specific parts or angles of the trim 4.

[0029] Please refer to Figure 1 , Figure 2 , as an embodiment of the present invention, the water inlet trimming assembly 3 includes a fixed frame 301, and both short sides of the fixed frame 301 are fixedly connected to the inner walls at both ends of the rectangular mounting hole 2; a plurality of clamps 302 are respectively arranged on both long sides of the fixed frame 301, and a first pneumatic scissors 304 and a second pneumatic scissors 305 are respectively installed in the clamps 302; a fixed card slot 303 is arranged on the clamp 302, and the first pneumatic scissors 304 and the second pneumatic scissors 305 are respectively arranged in the fixed card slot 303.

[0030] In the above-described solution, the fixed frame 301 is the basic structure of the entire gate cutting assembly 3. Its two short sides are respectively fixedly connected to the inner walls at both ends of the rectangular mounting hole 2 on the bottom cabinet 1 to ensure the stability and positioning accuracy of the gate cutting assembly 3. A plurality of clamps 302 are provided and are respectively installed on the two long sides of the fixed frame 301 for fixing and adjusting the positions of the first pneumatic scissors 304 and the second pneumatic scissors 305. Each clamp 302 is provided with a fixed card slot 303, and the fixed card slot 303 provides an installation and fixing space for the first pneumatic scissors 304 and the second pneumatic scissors 305. The first pneumatic scissors 304 and the second pneumatic scissors 305 are the core components of the gate cutting assembly 3. The first pneumatic scissors 304 and the second pneumatic scissors 305 are driven pneumatically to open and close the scissors. The pneumatic system can provide fast, accurate and repeatable control to ensure the accuracy and consistency of the gate cutting operation. The first pneumatic scissors 304 and the second pneumatic scissors 305 have different sizes and shapes to adapt to the gate cutting requirements at different positions and shapes. Since the gate positions and shapes of the decorative parts 4 may vary due to different models or batches, the gate cutting assembly 3 needs to have a certain adjustment function. By adjusting the position of the clamp 302 on the fixed frame 301 and adjusting the angles and positions of the first pneumatic scissors 304 and the second pneumatic scissors 305 in the fixed card slot 303, different gate cutting requirements can be adapted, improving the production efficiency and processing accuracy.

[0031] Please refer to Figure 2 、 Figure 3 As an embodiment of the present utility model, one side of the clamp 302 is open, and a long clamping end 306 and a short clamping end 307 are respectively provided on both sides of the opening of the clamp 302, and the long clamping end 306 and the short clamping end 307 are fixedly connected by a bolt 308. A movable block 309 is fixedly connected to one end of the long clamping end 306 away from the fixed card slot 303, and the movable block 309 is movably connected to the fixed frame 301. A vertically arranged waist-shaped hole 14 is opened on the movable block 309, and a positioning screw 15 is arranged in the waist-shaped hole 14. A chute 16 is opened along the length direction on the inner side of the fixed frame 301, and the front end of the positioning screw 15 penetrates through the waist-shaped hole 14 and extends into the chute 16.

[0032] In the above-described solution, one side of the clamp 302 is designed to be open, which allows the first pneumatic scissors 304 or the second pneumatic scissors 305 to be conveniently inserted into and removed from the fixed card slot 303; long clamping ends 306 and short clamping ends 307 are respectively provided on both sides of the opening of the clamp 302, and the long clamping end 306 is longer than the short clamping end 307 so as to form a stable connection when closed; the long clamping end 306 and the short clamping end 307 are fixedly connected by a bolt 308. When the bolt 308 is tightened, the opening of the clamp 302 will close, thereby tightly clamping the first pneumatic scissors 304 or the second pneumatic scissors 305; a movable block 309 is fixedly connected to one end of the long clamping end 306 away from the fixed card slot 303, and the movable block 309 can slide on the fixed frame 301 to adapt to the position adjustment of the first pneumatic scissors 304 or the second pneumatic scissors 305 in the horizontal direction; a vertically arranged waist-shaped hole 14 is provided on the movable block 309, and a positioning screw 15 is provided in the waist-shaped hole 14. The design of the waist-shaped hole 14 allows the positioning screw 15 to move within a certain range in the vertical direction, thereby realizing fine adjustment of the first pneumatic scissors 304 or the second pneumatic scissors 305 in the height direction; a chute 16 is provided along the length direction on the inner side of the fixed frame 301, and the chute 16 provides a sliding track for the movable block 309, ensuring the stability and linearity of the movable block 309 during movement; the front end of the positioning screw 15 passes through the waist-shaped hole 14 of the movable block 309 and extends into the chute 16. By tightening or loosening the nut on the positioning screw 15, the position of the first pneumatic scissors 304 or the second pneumatic scissors 305 in the length direction can be accurately adjusted to adapt to different gate-cutting requirements, ensuring the accuracy and efficiency of the gate-cutting operation.

[0033] Please refer to Figure 3 、 Figure 4 and Figure 5 As an embodiment of the present utility model, a limiting groove 17 is provided along the inner wall of the inner circle of the fixed card slot 303, and limiting rings 18 protruding outward are respectively provided on the outer walls of the first pneumatic scissors 304 and the second pneumatic scissors 305; the limiting rings 18 are arranged in the limiting groove 17, and the limiting rings 18 can rotate in the limiting groove 17; the first pneumatic scissors 304 are long-edge scissors, and the second pneumatic scissors 305 are short-edge scissors.

[0034] In the above-described solution, a limiting groove 17 is formed along the inner wall of the inner ring of the fixed card slot 303. The limiting groove 17 is used to limit and position the movement of the first pneumatic scissors 304 and the second pneumatic scissors 305 within the fixed card slot 303. The limiting groove 17 is usually annular or arc-shaped to adapt to the paths of the first pneumatic scissors 304 and the second pneumatic scissors 305 during rotation. Limiting rings 18 protruding outward are respectively provided on the outer walls of the first pneumatic scissors 304 and the second pneumatic scissors 305. The limiting rings 18 are matched with the limiting groove 17. When the first pneumatic scissors 304 and the second pneumatic scissors 305 are installed in the fixed card slot 303, the limiting rings 18 will be placed in the limiting groove 17. In this way, the rotation and movement of the first pneumatic scissors 304 and the second pneumatic scissors 305 are restricted within the range of the limiting groove 17, ensuring the stability and accuracy of the operation. The design of the limiting rings 18 in the limiting groove 17 allows the first pneumatic scissors 304 and the second pneumatic scissors 305 to maintain stable positioning during rotation, avoiding operation errors or equipment damage caused by excessive movement or rotation.

[0035] Furthermore, the first pneumatic scissors 304 are long-edge scissors with a longer blade. The first pneumatic scissors 304 are used to cut larger or thicker material parts. Due to its longer blade, the first pneumatic scissors 304 can cut more materials in a single operation, improving work efficiency. During the cut-off operation of the decorative part 4, the first pneumatic scissors 304 are used to cut the main and larger cut-off parts. The second pneumatic scissors 305 are short-edge scissors with a shorter blade, used for more delicate or smaller cutting tasks. Due to its shorter blade, the second pneumatic scissors 305 can more precisely control the cutting position and depth, avoiding excessive damage to the surrounding materials. During the cut-off operation of the decorative part 4, the second pneumatic scissors 305 are used to cut those smaller and harder-to-reach cut-off parts. By using the first pneumatic scissors 304 and the second pneumatic scissors 305 in a coordinated manner for cutting, the cut-off operation of the decorative part 4 is both efficient and delicate, meeting the cutting requirements for cut-offs of different shapes and sizes.

[0036] Please refer to Figure 1 、 Figure 2 , as an embodiment of the present utility model, the suction cup 9, the first clamping jaw 11, the second clamping jaw 13, the first pneumatic scissors 304, and the second pneumatic scissors 305 are respectively connected to an external air pump (not shown in the figure) through air ducts.

[0037] In the above-described solution, the suction cup 9, the first clamping jaw 11, the second clamping jaw 13, the first pneumatic scissors 304, and the second pneumatic scissors 305 all adopt pneumatic drive methods, that is, they are connected to an external air pump through air ducts, and the compressed air generated by the air pump is used to drive them to work; the suction cup 9 is used to suck and release the decorative part 4. When the air pump supplies compressed air to the suction cup, a negative pressure is formed inside the suction cup 9, so that the decorative part 4 can be firmly adsorbed; when it is necessary to release the decorative part 4, the air pump stops supplying air or provides a reverse air flow, the pressure inside the suction cup 9 is restored, and the decorative part 4 can be released; the first clamping jaw 11 and the second clamping jaw 13 are used to clamp and release the excess waste generated at the gate position during the injection molding process. The first clamping jaw 11 and the second clamping jaw 13 are driven to open and close by the compressed air provided by the air pump. When the air pump supplies compressed air to the clamping jaws, the first clamping jaw 11 and the second clamping jaw 13 close and can clamp the gate waste; when the air pump stops supplying air or provides a reverse air flow, the first clamping jaw 11 and the second clamping jaw 13 open to release the gate waste; the first pneumatic scissors 304 and the second pneumatic scissors 305 are used to cut the excess gate waste during the injection molding process. The first pneumatic scissors 304 and the second pneumatic scissors 305 are driven to perform a cutting action on their blades by the compressed air provided by the air pump. When the air pump supplies compressed air to the first pneumatic scissors 304 and the second pneumatic scissors 305, the blades close to perform cutting; when the air pump stops supplying air or provides a reverse air flow, the blades open to complete the cutting action; by adopting the pneumatic drive method, the safety and efficiency of these tools can be greatly improved.

[0038] Please refer to Figure 1 , as an embodiment of the present invention, a movable cabinet door 19 is provided on the side wall of the base cabinet 1. A waste recycling box 20 is provided in the inner cavity of the base cabinet 1, and the waste recycling box 20 is disposed opposite to the rectangular mounting hole 2; adjustable feet 21 are respectively installed at the four corners of the bottom of the base cabinet 1, and a roller 22 is installed on one side of the adjustable foot 21.

[0039] In the above-described solution, a movable cabinet door 19 is provided on the side wall of the base cabinet 1. The movable cabinet door 19 can be opened or closed to facilitate access to the space inside the base cabinet 1. The movable cabinet door 19 is usually connected to the side wall of the base cabinet 1 by hinges or rails, allowing users to easily open and close it; the waste recycling box 20 is located in the inner cavity of the base cabinet 1 and is disposed opposite to the rectangular mounting hole 2 opened at the top of the base cabinet 1. This design allows the first pneumatic scissors 304 and the second pneumatic scissors 305 to conveniently drop the cut waste into the waste recycling box 20 through the rectangular mounting hole 2, which helps to keep the working area clean and promotes the classification and recycling of waste.

[0040] Adjustable feet 21 are respectively installed at the four corner positions of the bottom of the base cabinet 1. One side of the adjustable feet 21 is also installed with rollers 22. The adjustable feet 21 can be adjusted in height according to needs to ensure that the base cabinet 1 remains level on uneven ground, which helps prevent the base cabinet 1 from tilting or shaking and provides more stable support. The rollers 22 allow users to easily move the base cabinet 1. When it is necessary to move the base cabinet 1, the adjustable feet 21 are retracted so that the rollers 11 contact the ground, and then the base cabinet 1 can be easily pushed to the desired position. After the base cabinet 1 reaches the predetermined position, the height of the adjustable feet 21 can be adjusted to disengage the rollers 22 from the ground, thereby fixing the base cabinet 1.

[0041] Although the specific embodiments of the present invention have been described above, those skilled in the art should understand that these are only examples. The protection scope of the present invention is defined by the appended claims. Without departing from the principles and essence of the present invention, those skilled in the art can make various changes or modifications to these embodiments, but these changes and modifications all fall within the protection scope of the present invention.

Claims

1. A water cut device for a rear door guard plate decoration of an automobile, comprising a base cabinet (1); characterized in that: A rectangular mounting hole (2) is provided at the upper end of the base cabinet (1), wherein a water cutter assembly (3) is provided in the rectangular mounting hole (2); a handling robot (5) is provided at one side of the base cabinet (1), wherein a connecting rod (6) is provided at the front end of a movable arm of the handling robot (5); two mounting rods (7) are symmetrically mounted at both ends of the connecting rod (6), wherein the two ends of the two mounting rods (7) are fixedly connected by a supporting rod (8); a suction cup (9) is provided at the lower end of the mounting rod (7), wherein the suction cup (9) is fixedly connected to the mounting rod (7) by a right-angle bracket (10); a first clamping claw (11) is respectively mounted at the lower end of the supporting rod (8) and the lower end of the connecting rod (6), wherein the first clamping claw (11) is arranged between the two mounting rods (7).

2. A water cutout device for a rear door guard plate decoration of an automobile according to claim 1, characterized in that: A cross bar (12) is also provided between the two installation bars (7), wherein second clamping claws (13) are respectively provided at both ends of the cross bar (12).

3. The water cutout device for a rear door guard plate decoration of an automobile according to claim 1, characterized in that: The water cutout assembly (3) comprises a fixing frame (301), wherein two short sides of the fixing frame (301) are respectively fixedly connected to the inner walls at both ends of the rectangular mounting hole (2); and two long sides of the fixing frame (301) are respectively provided with a plurality of clamps (302), wherein a first pneumatic scissors (304) and a second pneumatic scissors (305) are respectively installed in the clamps (302).

4. A water cutout device for a rear door guard plate decoration of an automobile according to claim 3, characterized in that: The clamp (302) is provided with a fixed slot (303), wherein the first pneumatic scissors (304) and the second pneumatic scissors (305) are arranged in the fixed slot (303); one side of the clamp (302) is open, and both sides of the opening of the clamp (302) are respectively provided with a long clamping end (306) and a short clamping end (307), wherein the long clamping end (306) and the short clamping end (307) are fixedly connected by bolts (308).

5. The water cutout device for a rear door guard plate decoration of an automobile according to claim 4, characterized in that: The long clamping end (306) is fixedly connected to a movable block (309) at one end away from the fixed clamping slot (303), wherein the movable block (309) is movably connected to the fixed frame (301); a vertically arranged waist hole (14) is provided on the movable block (309), wherein a positioning screw (15) is provided in the waist hole (14); a sliding groove (16) is provided on the inner side of the fixed frame (301) along its length direction, wherein the front end of the positioning screw (15) passes through the waist hole (14) and extends into the sliding groove (16).

6. A water cutout device for a rear door guard plate decoration of an automobile according to claim 4, characterized in that: The inner ring of the fixed slot (303) is provided with a limiting groove (17) along its inner wall, wherein the outer walls of the first pneumatic scissors (304) and the second pneumatic scissors (305) are respectively provided with limiting rings (18) protruding outwards; the limiting rings (18) are arranged in the limiting groove (17).

7. The water cutout device for a rear door guard plate decoration of an automobile according to claim 4, characterized in that: The first pneumatic scissors (304) are long-blade scissors, and the second pneumatic scissors (305) are short-blade scissors.

8. The water cutout device for a rear door guard plate decoration of an automobile according to claim 1, characterized in that: The side wall of the base cabinet (1) is provided with a movable cabinet door (19), wherein the inner cavity of the base cabinet (1) is provided with a waste recovery box (20).

9. The water cutout device for a rear door guard plate decoration of an automobile according to claim 8, characterized in that: The four corners of the bottom of the base cabinet (1) are respectively provided with adjustable feet (21), wherein a roller (22) is provided on one side of the adjustable feet (21).

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