Vehicle door clamping system

Abstract

The utility model provides a vehicle door clamping system, which belongs to the technical field of vehicle manufacturing, and comprises a support frame, a positioning assembly and two groups of grabbing assemblies, the lower end of the support frame is connected with the positioning assembly, the positioning assembly has a longitudinal degree of freedom, and the action end of the positioning assembly is used for abutting against the middle part of a vehicle door; the two grabbing assemblies are symmetrically arranged on the two sides of the supporting frame, clamping jaw structures are arranged at the bottoms of the grabbing assemblies, and the clamping portions of the clamping jaw structures are both sleeved with flexible sleeves. According to the vehicle door clamping system provided by the utility model, the vehicle door is clamped through the matching of the positioning assembly and the grabbing assembly of the support; in the clamping process, the clamping jaw structure of the grabbing assembly is closed, the flexible sleeve of the clamping part of the grabbing assembly makes direct contact with the automobile door, the problem that the automobile door is abraded or cannot be clamped firmly due to the fact that the automobile door is directly clamped by a metal clamping jaw is solved, and grabbing becomes more efficient through low cost.

Description

Technical Field

[0001] The utility model belongs to the technical field of vehicle manufacturing, and more specifically relates to a vehicle door clamping system. Background Art

[0002] The automated inner panel welding assembly for vehicle doors is handled by a robotic gripper, which moves the door from one workstation to another or directly to welding, hemming, and other processes. The gripper typically works in conjunction with locating pins on the inner panel to position and clamp the door for precise and reliable handling.

[0003] Existing grippers only work for doors with the same gripping point location and size. The gripping point locations may vary for different vehicle models, and adding new models requires modifying the existing gripper, increasing both the complexity and cost of product design. If multiple models are produced on the same production line, a gripper switching system and gripper storage area are also required, leading to complex design, increased costs, and space requirements.

[0004] In addition, existing grippers are mostly made of metal, and their direct contact with the car door may cause wear and tear on the car door or cause insecure clamping. Utility Model Content

[0005] The purpose of the utility model is to provide a vehicle door clamping system, aiming to solve the problem that a metal gripper directly contacts the vehicle door, causing wear of the vehicle door or inadequate clamping.

[0006] To achieve the above-mentioned purpose, the technical solution adopted by the present invention is: to provide a vehicle door clamping system, including a support frame, a positioning assembly and two groups of grabbing assemblies, the lower end of the support frame is connected to the positioning assembly, the positioning assembly has longitudinal freedom, and the action end of the positioning assembly is used to rest against the middle of the vehicle door; the two groups of grabbing assemblies are symmetrically arranged on both sides of the support frame, the bottom of the grabbing assembly has a clamping claw structure, and the clamping parts of the clamping claw structure are each covered with a flexible sleeve.

[0007] As another embodiment of the present application, the working surface of the flexible sleeve is a plane, or the working surface of the flexible sleeve has a groove for matching the door structure; the working surface of the flexible sleeve has a protruding texture structure.

[0008] As another embodiment of the present application, a flexible support structure is provided in the inner cavity of the flexible sleeve, and an edge of the flexible support structure is in contact with the end surface of the clamping portion.

[0009] As another embodiment of the present application, the inner cavity of the flexible sleeve forms a clearance cavity with the help of the flexible support structure, and the flexible sleeve is clamped on the outer side of the clamping portion with the help of the clearance cavity.

[0010] As another embodiment of the present application, the flexible support structure includes a plurality of strip support structures arranged at intervals, and the strip support structures are integrally formed with the flexible sleeve.

[0011] As another embodiment of the present application, the positioning assembly includes a first positioning assembly and a second positioning assembly spaced apart from each other, the first positioning assembly being fixed to the support frame; the second positioning assembly being connected to the support frame via a translation assembly;

[0012] The translation assembly includes a first moving mechanism and a second moving mechanism, the first moving mechanism includes a Y guide rail, a first slider and a transverse frame, the Y guide rail is provided on the support frame, the first slider is movably provided on the Y guide rail, the transverse frame is fixedly provided on the first slider, and the length direction of the transverse frame is consistent with the X direction; the second moving mechanism includes an X guide rail and a second slider, the X guide rail and the second moving mechanism are arranged on the transverse frame along the X direction, the second slider is movably provided on the X guide rail, and the second positioning assembly is fixedly installed on the second slider.

[0013] As another embodiment of the present application, each group of the grabbing components is two, and there are two extension arms on both sides of the support frame, and the extension arms have freedom along the X-axis direction; the two grabbing components are respectively connected to the two extension arms and move laterally with the action end of the extension arm.

[0014] As another embodiment of the present application, the grabbing assembly includes a Z-direction lifting assembly, which is connected to the action end of the extension arm; and the clamping claw structure is connected to the action end of the Z-direction lifting assembly.

[0015] As another embodiment of the present application, the clamping structure includes a fixed seat, a fixed claw body, a movable claw body and a driving assembly, the fixed seat is connected to the action end of the Z-direction lifting assembly, the fixed claw body is connected to the fixed seat, and the movable claw body is rotatably connected to the fixed seat through a claw arm; the driving assembly is located in the inner cavity of the fixed seat and is connected to the claw arm of the movable claw body, and the driving assembly drives the movable claw body to rotate; the free ends of the fixed claw body and the movable claw body both have a clamping portion.

[0016] As another embodiment of the present application, the driving assembly includes a rotating block, a driving telescopic member and a return spring; the rotating block is rotatably connected to the fixed seat by means of a rotating pin, the rotating pin passes through the fixed seat and is connected to the claw arm of the movable claw body, the rotating pin, the movable claw body and the rotating block rotate synchronously, the rotating block has a force-bearing part, and the force-bearing part is located on one side of the rotating pin; the driving telescopic member and the return spring are respectively located on the upper and lower sides of the force-bearing part.

[0017] The beneficial effects of the vehicle door clamping system provided by the utility model are as follows: compared with the prior art, the vehicle door clamping system of the utility model realizes the clamping of the vehicle door by cooperating with the positioning component and the grasping component added by the support; when clamping, the clamping claw structure of the grasping component is closed, and the flexible sleeve of the clamping part is in direct contact with the vehicle door, avoiding the problem of wear on the vehicle door or false clamping caused by the metal clamping claw directly clamping the vehicle door, making the grasping more efficient at a lower cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0019] Figure 1 A schematic structural diagram of a vehicle door clamping system provided by an embodiment of the present utility model;

[0020] Figure 2 A front view of a vehicle door clamping system provided by an embodiment of the present utility model;

[0021] Figure 3 A cross-sectional view of a first grabbing assembly provided in an embodiment of the present utility model;

[0022] Figure 4 A cross-sectional view of a second gripping assembly provided in an embodiment of the present utility model;

[0023] Figure 5 A cross-sectional view of a first set of flexible sleeves provided in an embodiment of the present utility model;

[0024] Figure 6 A cross-sectional view of the second set of flexible sleeves provided in an embodiment of the present utility model.

[0025] In the figure: 1. Support frame; 2. First positioning assembly; 3. Second positioning assembly; 4. Extension arm; 5. Fixed arm; 6. Moving claw; 7. Flexible sleeve; 8. Fixed claw; 9. Y-guide rail; 10. X-guide rail; 11. Fixed seat; 12. Driving telescopic part; 13. Rotating block; 14. Return spring; 15. Rotating pin; 16. Clamping part; 17. Flexible support structure. DETAILED DESCRIPTION

[0026] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0027] See also Figures 1 to 6 The vehicle door clamping system provided by the present invention is now described. The vehicle door clamping system comprises a support frame 1, a positioning assembly, and two sets of gripping assemblies. The lower end of the support frame 1 is connected to the positioning assembly, which has longitudinal freedom. The actuating ends of the positioning assembly are configured to abut against the center of the vehicle door. The two sets of gripping assemblies are symmetrically positioned on either side of the support frame 1. The bottoms of the gripping assemblies have claw structures, each of which has a gripping portion 16 covered with a flexible sleeve 7.

[0028] Compared with the prior art, the vehicle door clamping system provided by the present invention realizes the clamping of the vehicle door by cooperating with the positioning component and the grasping component added by the support; when clamping, the clamping claw structure of the grasping component is closed, and the flexible sleeve 7 of the clamping part 16 is in direct contact with the vehicle door, avoiding the problem of wear and tear on the vehicle door or false clamping caused by the metal clamping claw directly clamping the vehicle door, making the grasping more efficient at a lower cost.

[0029] For different door structures, only different flexible sleeves 7 need to be replaced without replacing the entire device, and the system has high adaptability. The flexible sleeve 7 is made of silicone material and has the characteristics of simple structure, mass production and low cost.

[0030] In some possible embodiments, see Figures 3 to 6 The working surface of the flexible sleeve 7 is a plane, or the working surface of the flexible sleeve 7 has a groove for matching the door structure; the working surface of the flexible sleeve 7 has a convex texture structure.

[0031] Each clamping jaw structure includes two clamping parts. When clamping a vehicle door, the two clamping parts close to secure the vehicle door. A flexible sleeve 7 is mounted on each clamping part. The working end of the flexible sleeve 7 can be horizontal or concave to adapt to the shape of the different parts of the vehicle door being clamped.

[0032] Specifically, the two groups of grabbing components are used to grab the upper and lower parts of the car door respectively. The working surface of the flexible sleeve 7 of the grabbing component for grabbing the upper part of the car door has a groove to adapt to the upper frame of the car door; the working surface of the flexible sleeve 7 of the grabbing component for grabbing the lower part of the car door is a plane to adapt to the bottom plane of the car door.

[0033] A texture structure is provided on the working surface of the flexible cover 7 , and the raised texture structure can increase the friction between the flexible cover 7 and the vehicle door.

[0034] In some possible embodiments, see Figures 3 to 6 The inner cavity of the flexible sleeve 7 has a flexible support structure 17, and the edge of the flexible support structure 17 is in contact with the end surface of the clamping portion 16. The flexible sleeve 7 has a clearance cavity, and the flexible sleeve 7 is clamped on the outside of the clamping portion 16 by means of the clearance cavity.

[0035] The flexible sleeve 7's inner cavity is left open by the flexible support structure 17, which communicates with the sleeve's open end. During installation, the clamping portion 16 extends from the sleeve's opening into the open cavity and to the end of the cavity. Flexible support structures 17 are distributed around the ends and circumference of the clamping portion 16. These structures impart elasticity to the flexible sleeve 7 in both its thickness and transverse directions, ensuring a secure fit between the sleeve 7 and the vehicle door.

[0036] The flexible support structure 17 is located within the inner cavity of the flexible sleeve 7 and is connected to the bottom of the inner cavity of the flexible sleeve 7. The free end of the flexible support structure 17 is tightly fitted with the end surface of the clamping portion 16. Specifically, the clamping portion 16 has a connecting hole, and the flexible sleeve 7 has mounting holes on both sides, and the mounting holes and the connecting holes are arranged coaxially. Fasteners penetrate the mounting holes and the connecting holes to secure the flexible sleeve 7 to the clamping portion 16. Under the action of the fasteners, the clamping portion 16 abuts the flexible support structure 17 inside the flexible sleeve 7. Optionally, the fasteners can be pins.

[0037] The flexible support structure 17 includes a plurality of spaced strip support structures, which are integrally formed with the flexible sleeve 7. Both the strip support structure and the flexible sleeve 7 are made of silicone and can be directly extruded during production, while a raised texture structure is formed on the outer surface of the flexible sleeve 7.

[0038] In some possible embodiments, see Figure 1 and Figure 2 The positioning assembly is located on the lower end surface of the middle portion of the support frame 1 and extends downward. The positioning assembly has longitudinal freedom. When gripping a vehicle door, the active end of the positioning assembly extends downward until it fits against the middle of the door, positioning the door. Once positioned, the gripping assemblies on both sides can then grip the door.

[0039] The positioning assembly includes a first positioning assembly 2 and a second positioning assembly 3 arranged at intervals, and the first positioning assembly 2 is fixed to the support frame 1; the second positioning assembly 3 is connected to the support frame 1 by means of a translation assembly; the translation assembly includes a first moving mechanism and a second moving mechanism, the first moving mechanism includes a Y guide rail 9, a first slider and a transverse frame, the Y guide rail 9 is provided on the support frame 1, the first slider is movably provided on the Y guide rail 9, the transverse frame is fixed to the first slider, and the length direction of the transverse frame is consistent with the X direction; the second moving mechanism includes an X guide rail 10 and a second slider, the X guide rail 10 and the second moving mechanism are arranged on the transverse frame along the X direction, the second slider is movably provided on the X guide rail 10, and the second positioning assembly 3 is fixedly mounted on the second slider.

[0040] The positioning assembly utilizes a combination of a dynamic and a static positioning system. This simplifies the operation of the positioning assembly and enables faster and more accurate positioning. Furthermore, it eliminates the need for a mobile guide system for both positioning assemblies, enabling the positioning of different doors and reducing costs. This combination of a dynamic and a static positioning system, combined with the simultaneous translation of the assembly, allows for greater flexibility in grasping different door models, with the advantages of high precision and efficient transmission.

[0041] Specifically, the first positioning component 2 and the second positioning component 3 are spaced apart along the Y-axis direction, and the first positioning component 2 is fixedly mounted on the center line of the support frame 1. The second positioning component 3 can achieve horizontal movement along the X-axis direction and the Y-axis direction with the help of the first moving mechanism and the second moving mechanism of the translation component, thereby adapting to the positioning work of different models of car doors.

[0042] The first moving mechanism is used to realize the movement effect of the second positioning component 3 along the Y-axis direction, and the second moving mechanism is used to realize the movement effect of the second positioning component 3 along the X-axis direction. The Y-guide rail 9 of the first moving mechanism is fixedly installed on the lower end surface of the support frame 1 along the Y-axis direction, and the first slider is slidably set on the Y-guide rail 9. A transverse frame is installed on the first slider. In order to ensure the movement stability of the transverse frame, two Y-guide rails 9 are installed at the lower end of the support frame 1. The two Y-guide rails 9 are spaced apart along the X-axis, the two Y-guide rails 9 are parallel, and the two first sliders move simultaneously. The two ends of the transverse frame are respectively connected to the two first sliders, and are driven by the two first sliders to move along the Y-axis direction at the same time. The second moving mechanism is located at the lower end of the transverse frame, and the X-guide rail 10 of the second moving mechanism is located at the lower end of the transverse frame. The second slider is installed on the X-guide rail 10, and the second slider drives the second positioning component 3 to move.

[0043] The second positioning assembly 3 realizes movement in the horizontal direction by means of the X-guide rail 10 and the Y-guide rail 9, and can more flexibly grasp and position vehicle doors of different models, with the advantages of high precision and high transmission efficiency.

[0044] The first positioning assembly 2 and the second positioning assembly 3 both have longitudinal degrees of freedom. The first positioning assembly 2 and the second positioning assembly 3 both include longitudinally retractable cylinders, which drive the positioning rods at their lower ends to abut and position the vehicle door.

[0045] In some possible embodiments, see Figures 1 to 3 Each set of gripping assemblies consists of two. Two extension arms 4 are located on either side of the support frame 1, each with freedom along the X-axis. The two gripping assemblies are connected to the two extension arms 4, respectively, and move laterally with the actuating ends of the extension arms 4. The two gripping assemblies are located on either side of the support frame 1, one for gripping the upper and the other for gripping the lower portion of the vehicle door, respectively. Each set of gripping assemblies consists of two, spaced apart along the Y-axis. They grip both sides of the vehicle door's width, maintaining stability during operation.

[0046] Two extension arms 4 are provided on either side of the support frame 1, spaced apart along the Y-axis. Each extension arm 4 is used to mount two grab assemblies in the same group. The extension arms 4 comprise a support structure, a guide rail structure, and a slider structure. The support structure is fixedly connected to the support frame 1, the guide rail structure is mounted on the support structure along the X-axis, and the slider structure is slidably mounted on the guide rail structure. The grab assemblies are fixedly connected to the slider structure, enabling movement along the X-axis.

[0047] Different door sizes and locations require different gripper assembly dimensions. Therefore, the extension arms 4 are individually controlled to achieve independent movement of the gripper assembly. These individually controlled gripper assemblies can grip most passenger car doors on the market. If a door exceeds the size limit of the gripper assembly or extension arm 4, simply replace the gripper assembly or extension arm 4 to restore the gripper function.

[0048] The gripping assembly includes a Z-axis lift assembly connected to the active end of the extension arm 4; a gripping structure is also connected to the active end of the Z-axis lift assembly. The Z-axis lift assembly includes a longitudinally mounted fixed arm 5 and a cylinder mounted on the fixed arm 5. The fixed end of the cylinder is connected to the fixed arm 5, and the free end of the cylinder is connected to the gripping structure.

[0049] The gripper assembly includes a longitudinally movable Z-axis lift assembly. The fixed end of the Z-axis lift assembly is mounted on the slider structure of the extension arm 4. The Z-axis lift assembly can be a pneumatic cylinder, with a gripper structure connected to the actuating end of the cylinder. The gripper structure is used to grip the edge of the vehicle door.

[0050] The clamping structure includes a fixed base 11, a fixed claw body 8, a movable claw body 6 and a driving assembly. The fixed base 11 is connected to the action end of the Z-direction lifting assembly, the fixed claw body 8 is connected to the fixed base 11, and the movable claw body 6 is rotatably connected to the fixed base 11 through the claw arm; the driving assembly is located in the inner cavity of the fixed base 11 and is connected to the claw arm of the movable claw body 6, and the driving assembly drives the movable claw body 6 to rotate; the free ends of the fixed claw body 8 and the movable claw body 6 both have a clamping portion 16.

[0051] The fixed base 11 of the clamping claw structure is connected to the actuating end of the Z-axis lifting assembly. The fixed base 11 is a box-shaped structure. A fixed claw 8 is mounted on one side of the fixed base 11. The fixed claw 8 comprises a claw arm and a clamping portion 16, located at the free end of the claw arm. A movable claw 6 is hingedly connected to the other side of the fixed base 11. The movable claw 6 rotates about a hinge axis to move closer to or away from the fixed claw 8.

[0052] The claw arm of the movable claw body 6 is rotatably connected to the fixed seat 11 . The claw arm of the movable claw body 6 is bent, and the clamping portion 16 at the free end of the claw arm can be closed with the clamping portion 16 of the fixed claw body 8 .

[0053] The movable claw body 6 is driven to rotate by the driving assembly, and the claw arm rotates and drives the clamping portion 16 to approach the clamping portion 16 of the fixed claw body 8 .

[0054] Specifically, the driving assembly includes a rotating block 13, a driving telescopic member 12 and a return spring 14; the rotating block 13 is rotatably connected to the fixed seat 11 by means of a rotating pin 15, the rotating pin 15 passes through the fixed seat 11 and is connected to the claw arm of the movable claw body 6, the rotating pin 15, the movable claw body 6 and the rotating block 13 rotate synchronously, and the rotating block 13 has a force-bearing part, which is located on one side of the rotating pin 15; the driving telescopic member 12 and the return spring 14 are respectively located on the upper and lower sides of the force-bearing part.

[0055] The rotating block 13 of the driving assembly is installed in the inner cavity of the fixed seat 11, the driving telescopic member 12 of the driving assembly is installed at the upper end opening of the fixed seat 11, and the return spring 14 is installed at the bottom of the inner cavity of the fixed seat 11, and the driving telescopic member 12 and the return spring 14 are arranged longitudinally at intervals and are respectively located on the upper and lower sides of the rotating block 13.

[0056] The rotating block 13 is rotatably connected to the fixed base 11 via a rotating pin 15, and the claw arm is connected to a portion of the rotating pin 15 located outside the fixed base 11. The rotating block 13, the rotating pin 15 and the claw arm rotate simultaneously.

[0057] One side of the rotating block 13 has a force-bearing portion extending toward the other side. The upper end surface of the force-bearing portion contacts the actuating end of the drive telescopic member 12, and the lower end surface of the force-bearing portion contacts the return spring 14. When the claw body is driven to close, the drive telescopic member 12 extends, which in turn extends downward and squeezes the force-bearing portion, causing the force-bearing portion to rotate the rotating block 13 and the rotating pin 15, thereby rotating the claw arm and bringing the movable claw body 6 closer to the fixed claw body 8. When the claw body is driven to open, the drive telescopic member 12 shortens, and the return spring 14 applies an upward rebound force to the lower end surface of the force-bearing portion, driving the force-bearing portion to move upward, rotating the rotating block 13 and the rotating pin 15, and thereby rotating the claw arm and moving the movable claw body 6 away from the fixed claw body 8.

[0058] In actual production, the door clamping system can also be integrated with Internet of Things technology and the company's production management system to reduce failure rates and shorten production preparation time.

[0059] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. Door clamping system, characterized in that, The invention comprises a support frame (1), a positioning assembly and two groups of grabbing assemblies, wherein the lower end of the support frame (1) is connected to the positioning assembly, the positioning assembly has longitudinal freedom, and the action end of the positioning assembly is used to abut against the middle of the vehicle door; the two groups of grabbing assemblies are symmetrically arranged on both sides of the support frame (1), the bottom of the grabbing assembly has a clamping claw structure, and the clamping part (16) of the clamping claw structure is covered with a flexible sleeve (7).

2. The door clamping system according to claim 1, wherein: The working surface of the flexible sleeve (7) is a plane, or the working surface of the flexible sleeve (7) has a groove for matching the door structure; the working surface of the flexible sleeve (7) has a convex texture structure.

3. The vehicle door clamping system according to claim 1, wherein: A flexible support structure (17) is provided in the inner cavity of the flexible sleeve (7), and the edge of the flexible support structure (17) is fitted to the end surface of the clamping portion (16).

4. The vehicle door clamping system according to claim 3, wherein: The inner cavity of the flexible sleeve (7) forms a clearance cavity with the help of the flexible support structure (17), and the flexible sleeve (7) is clamped on the outer side of the clamping portion (16) with the help of the clearance cavity.

5. The vehicle door clamping system according to claim 3, wherein: The flexible support structure (17) comprises a plurality of strip-shaped support structures arranged at intervals, and the strip-shaped support structures are integrally formed with the flexible sleeve (7).

6. The vehicle door clamping system according to claim 1, wherein: The positioning assembly comprises a first positioning assembly (2) and a second positioning assembly (3) which are spaced apart from each other, wherein the first positioning assembly (2) is fixed to the support frame (1); and the second positioning assembly (3) is connected to the support frame (1) by means of a translation assembly; The translation assembly includes a first moving mechanism and a second moving mechanism, the first moving mechanism includes a Y guide rail (9), a first slider and a transverse frame, the Y guide rail (9) is arranged on the support frame (1), the first slider is movably arranged on the Y guide rail (9), the transverse frame is fixedly arranged on the first slider, and the length direction of the transverse frame is consistent with the X direction; the second moving mechanism includes an X guide rail (10) and a second slider, the X guide rail (10) and the second moving mechanism are arranged on the transverse frame along the X direction, the second slider is movably arranged on the X guide rail (10), and the second positioning assembly (3) is fixedly mounted on the second slider.

7. The vehicle door clamping system according to claim 1, wherein: Each group of the grabbing assemblies comprises two, and both sides of the support frame (1) are provided with two extension arms (4), and the extension arms (4) have a degree of freedom along the X-axis direction; the two grabbing assemblies are respectively connected to the two extension arms (4) and move laterally along with the action end of the extension arm (4).

8. The vehicle door clamping system according to claim 7, wherein: The grabbing assembly comprises a Z-direction lifting assembly, the Z-direction lifting assembly being connected to the action end of the extension arm (4); and the clamping claw structure being connected to the action end of the Z-direction lifting assembly.

9. The vehicle door clamping system according to claim 8, wherein: The clamping claw structure comprises a fixed seat (11), a fixed claw body (8), a movable claw body (6) and a driving assembly, wherein the fixed seat (11) is connected to the action end of the Z-direction lifting assembly, the fixed claw body (8) is connected to the fixed seat (11), and the movable claw body (6) is rotatably connected to the fixed seat (11) via a claw arm; the driving assembly is located in the inner cavity of the fixed seat (11) and is connected to the claw arm of the movable claw body (6), and the driving assembly drives the movable claw body (6) to rotate; the free ends of the fixed claw body (8) and the movable claw body (6) both have a clamping portion (16).

10. The vehicle door clamping system according to claim 9, wherein: The driving assembly comprises a rotating block (13), a driving telescopic member (12) and a return spring (14); the rotating block (13) is rotatably connected to the fixed seat (11) by means of a rotating pin (15); the rotating pin (15) passes through the fixed seat (11) and is connected to the claw arm of the movable claw body (6); the rotating pin (15), the movable claw body (6) and the rotating block (13) rotate synchronously; the rotating block (13) has a force-bearing portion, which is located on one side of the rotating pin (15); the driving telescopic member (12) and the return spring (14) are respectively located on the upper and lower sides of the force-bearing portion.

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