Vehicle door installation tool

Abstract

The utility model discloses a vehicle door installation tool which comprises a first frame, universal wheels, a second frame, a Z-direction adjusting mechanism and a detection mechanism, and the universal wheels are arranged at the bottom of the first frame; the second frame is movably connected to the first frame; the vehicle door clamping mechanism is mounted on the second frame; the Z-direction adjusting mechanism is installed between the first frame and the second frame and used for driving the second frame to move in the Z direction. The detection mechanism is installed on the second frame and used for detecting the surface difference between the vehicle door and the door frame. According to the vehicle door installation tool, the vehicle door is transferred through the universal wheels of the vehicle door installation tool, meanwhile, the positions of the vehicle door in the X direction, the Y direction and the Z direction are adjusted through movement of the universal wheels and the Z-direction adjusting mechanism, and the surface difference between the vehicle door and the door frame is detected through the detection mechanism, so that manpower can be saved, and the assembly efficiency is improved; and the accuracy of assembly positions of the vehicle door and the door frame can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile manufacturing, in particular to a door installation tooling. Background Art

[0002] In the related art, during the trial production stage of vehicle model development, the installation of doors is mostly manually carried out. On average, a single door weighs dozens of kilograms, and at least three staff members are required to assist in installing the door. During the assembly process, it is very difficult to match the installation of hinges, and it is necessary to move back and forth in the up, down, left, and right directions for matching. The labor intensity is very high, and there are often phenomena where the staff responsible for lifting the door is exhausted, resulting in the installer pinching their fingers or pressing their legs. Content of the Utility Model

[0003] The utility model aims to at least solve one of the technical problems existing in the prior art. For this reason, an object of the utility model is to provide a door installation tooling, which can transfer the door through the door installation tooling, and can also adjust the position of the door in the X direction, Y direction, and Z direction, and detect the surface difference between the door and the door frame through a detection mechanism. It can not only save manpower and improve the assembly efficiency, but also improve the accuracy of the assembly position of the door and the door frame.

[0004] The door installation tooling according to an embodiment of the utility model includes: a first frame, with universal wheels provided at the bottom of the first frame; a second frame, movably connected to the first frame; a door clamping mechanism, installed on the second frame; a Z-direction adjustment mechanism, installed between the first frame and the second frame, for driving the second frame to move in the Z direction; a detection mechanism, installed on the second frame, and the detection mechanism is used to detect the surface difference between the door and the door frame.

[0005] The door installation tooling according to an embodiment of the utility model transfers the door through the universal wheels of the door installation tooling, and at the same time adjusts the position of the door in the X direction, Y direction, and Z direction through the movement of the universal wheels and the Z-direction adjustment mechanism, and detects the surface difference between the door and the door frame through the detection mechanism. It can not only save manpower and improve the assembly efficiency, but also improve the accuracy of the assembly position of the door and the door frame.

[0006] According to some embodiments of the utility model, there are two detection mechanisms, and the two detection mechanisms are respectively located at both ends of the X direction of the door.

[0007] According to some embodiments of the present utility model, the first frame includes a base and a fixing plate mounted above the base. The universal wheels are provided at the bottom of the base. The second frame includes two connecting brackets which are respectively located on two sides of the fixing plate in the X direction, and the two connecting brackets extend in the Y direction. The fixing plate is provided with a Z-direction adjusting mechanism which is connected to the connecting brackets. The door clamping mechanism is provided on the side of the connecting brackets facing away from the fixing plate.

[0008] According to some embodiments of the present utility model, the door clamping mechanism includes a door bottom clamping assembly for clamping the bottom of the door. The second frame further includes a rotating shaft located between the two connecting brackets, and the door bottom clamping assembly is mounted on the rotating shaft.

[0009] According to some embodiments of the present utility model, a bushing is sleeved on the outer peripheral side of the rotating shaft, and the door bottom clamping assembly is mounted on the bushing. The bushing can move relative to the rotating shaft. The door installation tooling further includes a locking assembly which is connected between the bushing and the rotating shaft for locking or unlocking the bushing and the rotating shaft.

[0010] According to some embodiments of the present utility model, an angle adjusting mechanism is further provided on the bushing for adjusting the angle between the door bottom clamping assembly and the rotating shaft.

[0011] According to some embodiments of the present utility model, the door clamping mechanism further includes a door top clamping assembly for clamping the top of the door. The door top clamping assembly includes a first connecting rod, a second connecting rod, a third connecting rod and a first clamping plate. The first connecting rod is connected to the side of the rotating shaft close to the fixing plate, the second connecting rod is connected above the first connecting rod, the third connecting rod is connected to the end of the second connecting rod facing away from the fixing plate, and the first clamping plate is connected to the end of the third connecting rod facing away from the fixing plate and is rotatably connected to the third connecting rod.

[0012] According to some embodiments of the present utility model, the second frame further includes a support arm connected to the connecting brackets. The support arm extends towards the door, and the detection mechanism is mounted on the support arm so that the detection mechanism is flush with the door in the X direction.

[0013] According to some embodiments of the present utility model, an X-direction positioning member is further included. The X-direction positioning member is mounted on the support arm and is adapted to abut against the door frame to limit the position of the door relative to the door frame in the X direction.

[0014] According to some embodiments of the present utility model, it further includes a Y-direction adjustment mechanism, which is installed between the first frame and the second frame and is used to drive the second frame to move in the Y direction.

[0015] Additional aspects and advantages of the present utility model will be given in part in the following description, become apparent in part from the following description, or be understood through the practice of the present utility model. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The above and / or additional aspects and advantages of the present utility model will become apparent and be readily understood from the description of the embodiments in conjunction with the following drawings, wherein:

[0017] Figure 1 is a perspective view of a door installation tooling according to some embodiments of the present utility model;

[0018] Figure 2 is Figure 1 the front view of the door installation tooling in

[0019] Figure 3 is Figure 1 the side view of the door installation tooling in

[0020] Figure 4 is Figure 1 the top view of the door installation tooling in

[0021] REFERENCE NUMERALS:

[0022] 100, door installation tooling;

[0023] 10, first frame; 11, base; 12, fixing plate; 13, universal wheel;

[0024] 20, second frame; 21, connecting bracket; 22, rotating shaft; 23, bushing; 231, angle adjustment mechanism; 24, support arm; 241, first support arm; 242, second support arm; 243, third support arm; 25, connecting rod; 26, telescopic rod; 27, support plate;

[0025] 30, door clamping mechanism; 31, door bottom clamping assembly; 311, second clamping plate; 312, third clamping plate; 32, door top clamping assembly; 321, first connecting rod; 322, second connecting rod; 323, third connecting rod; 324, first clamping plate; 41, Z-direction adjustment mechanism; 42, Y-direction adjustment mechanism; 43, X-direction positioning member; 44, detection mechanism. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0026] Embodiments of the present utility model will be described in detail below. Examples of the embodiments are shown in the accompanying drawings, where the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present utility model and should not be construed as limiting the present utility model.

[0027] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as limiting the present utility model. In addition, the terms "first" and "second" are only used for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly specifying the number of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present utility model, "a plurality" means two or more unless otherwise specifically defined.

[0028] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, the terms "mounted", "connected", and "coupled" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances. Additionally, in the description of the present utility model, the X direction is the front-rear direction of the vehicle, the Y direction is the left-right direction of the vehicle, and the Z direction is the up-down direction of the vehicle.

[0029] Reference will be made below Figures 1-4 to describe a door installation tooling 100 according to an embodiment of the present utility model.

[0030] The door installation tooling 100 according to an embodiment of the present utility model includes a first frame 10, a universal wheel 13, a second frame 20, a door clamping mechanism 30, and a Z-direction adjustment mechanism 41. The universal wheel 13 is provided at the bottom of the first frame 10. The second frame 20 is movably connected to the first frame 10. The door clamping mechanism 30 is mounted on the second frame 20. The Z-direction adjustment mechanism 41 is mounted between the first frame 10 and the second frame 20, and the Z-direction adjustment mechanism 41 is used to drive the second frame 20 to move in the Z direction. For example, the door can be a gull-wing door.

[0031] Multiple universal wheels 13 can be provided. The multiple universal wheels 13 can improve the stability of transferring the car door. Preferably, four universal wheels 13 are provided and are respectively located at the four corners of the first frame 10. The universal wheels 13 can move in the X direction and the Y direction. When the universal wheels 13 move in the X direction and the Y direction, they can drive the first frame 10 to move in the X direction and the Y direction, so as to drive the second frame 20 and the car door clamping mechanism 30 located on the second frame 20 to move in the X direction and the Y direction. The Z-direction adjusting mechanism 41 can be used to drive the second frame 20 to move in the Z direction, so as to drive the car door clamping mechanism 30 located on the second frame 20 to move in the Z direction. When the car door is fixed on the car door clamping mechanism 30, the position of the car door can be adjusted by the universal wheels 13 and the Z-direction adjusting mechanism 41.

[0032] When installing the car door, the car door can be placed on the car door clamping mechanism 30, and then the car door clamping mechanism 30 is adjusted to clamp the car door. The car door installation tooling 100 transfers the car door to the door frame through the movement of the universal wheels 13, and then, according to the positional relationship between the car door and the door frame, the positions of the car door in the X direction, the Y direction and the Z direction are adjusted through the movement of the universal wheels 13 and the adjustment of the Z-direction adjusting mechanism 41, so as to improve the accuracy of installing the car door on the door frame.

[0033] The car door installation tooling 100 further includes a detection mechanism 44. The detection mechanism 44 is installed on the second frame 20 and is used to detect the surface difference between the car door and the door frame. When the car door is transferred to the door frame through the car door installation tooling 100 and the positions of the car door in the X direction, the Y direction and the Z direction are adjusted through the movement of the universal wheels 13 and the adjustment of the Z-direction adjusting mechanism 41, the surface difference between the car door and the door frame can be detected by the detection mechanism 44. If the surface difference between the car door and the door frame detected by the detection mechanism 44 does not reach the preset value, the positions of the car door in the X direction, the Y direction and the Z direction can be adjusted again until the surface difference between the car door and the door frame detected by the detection mechanism 44 reaches the preset value. After that, the car door can be fixed on the door frame. After the installation is completed, the car door is removed from the car door clamping mechanism 30, and the car door installation tooling 100 can be directly pushed away.

[0034] In the related art, during the trial production stage of vehicle model development, the installation of vehicle doors is mostly carried out manually. On average, a single vehicle door weighs dozens of kilograms. At least three workers are required to assist in installing the door, resulting in a very high labor intensity. Moreover, the manual installation takes a long time, and there are often cases where the worker responsible for lifting the door loses physical strength, leading to situations where the installer's finger is pinched or the leg is crushed. After using the vehicle door installation tooling 100, the labor intensity of the workers can be effectively reduced, and injuries can be avoided. Furthermore, it takes at least 3 skilled assembly workers half an hour to manually install a single vehicle door, with a total of 6 working hours for each vehicle; after using the vehicle door installation tooling 100, at most 2 assembly workers are required to install each vehicle door for 15 minutes, with a total of 2 working hours for each vehicle; calculating based on a factory producing 500 vehicles per year and the labor cost being 50 yuan per hour, 100,000 yuan of labor cost can be saved annually. By using the vehicle door installation tooling 100, not only the work efficiency is improved, but also the assembly quality can be guaranteed.

[0035] According to the vehicle door installation tooling 100 of the embodiment of the present utility model, the vehicle door is transferred through the universal wheels 13 of the vehicle door installation tooling 100. At the same time, the positions of the vehicle door in the X-direction, Y-direction, and Z-direction are adjusted through the universal wheels 13 and the Z-direction adjustment mechanism 41, and the surface difference between the vehicle door and the door frame is detected through the detection mechanism 44. It can not only save manpower and improve the assembly efficiency, but also improve the accuracy of the assembly position of the vehicle door and the door frame.

[0036] According to some embodiments of the present utility model, referring to Figures 1-4 , there are two detection mechanisms 44. The two detection mechanisms 44 are respectively located at both ends of the vehicle door in the X-direction. When the vehicle door is installed at the door frame, there is a surface difference between both ends of the vehicle door in the X-direction and the door frame. One of the detection mechanisms 44 is located at one end of the vehicle door in the X-direction and is used to detect the surface difference between one end of the vehicle door in the X-direction and the door frame; the other detection mechanism 44 is located at the other end of the vehicle door in the X-direction and is used to detect the surface difference between the other end of the vehicle door in the X-direction and the door frame, further improving the position accuracy of the vehicle door installed on the door frame.

[0037] According to some embodiments of the present utility model, referring to Figures 1-4 , the first frame 10 includes a base 11 and a fixing plate 12. The fixing plate 12 is installed above the base 11. The base 11 can be formed by four crossbars connected end to end. Four universal wheels 13 are provided at the bottom of the base 11, and the four universal wheels 13 are respectively located at the joints of two crossbars. The fixing plate 12 is located above one of the crossbars.

[0038] The second frame 20 includes two connecting brackets 21. The two connecting brackets 21 are respectively located on both sides of the fixing plate 12 in the X-direction, and the two connecting brackets 21 extend along the Y-direction. A Z-direction adjustment mechanism 41 is provided on the fixing plate 12. The Z-direction adjustment mechanism 41 is connected to the connecting bracket 21. A vehicle door clamping mechanism 30 is provided on the side of the connecting bracket 21 facing away from the fixing plate 12.

[0039] On the side of the connecting bracket 21 facing away from the vehicle door clamping mechanism 30, a connecting rod 25 is provided. The connecting rod 25 is connected between two connecting brackets 21, and the connecting rod 25 is connected to the Z-direction adjusting mechanism 41. For example, the Z-direction adjusting mechanism 41 can be a lead screw mechanism or a cooperating linear guide rail and linear motor. The lead screw mechanism can include a cooperating screw and nut. The screw is located on the fixed plate 12, and the nut is connected to the connecting rod 25. An external power source drives the screw to rotate, and the nut moves along the screw in the Z direction to drive the connecting rod 25 to move in the Z direction, thereby driving the second frame 20 to move in the Z direction. A linear guide rail extending in the Z direction is provided on the fixed plate 12, and the linear motor is connected to the connecting rod 25. The linear motor moves in the Z direction along the linear guide rail to drive the connecting rod 25 to move in the Z direction, thereby driving the second frame 20 to move in the Z direction.

[0040] According to some embodiments of the present invention, referring to Figures 1-4 , the vehicle door clamping mechanism 30 includes a vehicle door bottom clamping assembly 31, and the vehicle door bottom clamping assembly 31 is used to clamp the bottom of the vehicle door. The second frame 20 further includes a rotating shaft 22 located between two connecting brackets 21. The rotating shaft 22 increases the structural stability of the second frame 20, and the vehicle door bottom clamping assembly 31 is installed on the rotating shaft 22, which also increases the structural strength of the vehicle door bottom clamping assembly 31.

[0041] For example, there are two vehicle door bottom clamping assemblies 31, and the two vehicle door bottom clamping assemblies 31 are respectively located at both ends of the rotating shaft 22 in the X direction, which increases the stability of the vehicle door fixed on the vehicle door bottom clamping assembly 31. The vehicle door bottom clamping assembly 31 includes a second clamping plate 311 and a third clamping plate 312. The second clamping plate 311 has a fixing bolt, and the fixing bolt moves towards the third clamping plate 312 to clamp the vehicle door between the fixing bolt and the third clamping plate 312.

[0042] According to some embodiments of the present invention, referring to Figures 1-4 , a bushing 23 is sleeved on the outer peripheral side of the rotating shaft 22, and the vehicle door bottom clamping assembly 31 is installed on the bushing 23, and the bushing 23 can move relative to the rotating shaft 22.

[0043] The door installation tooling 100 further includes a locking assembly, which is connected between the bushing 23 and the rotating shaft 22 and is used to lock or unlock the bushing 23 and the rotating shaft 22. In the locked state, the bushing 23 and the rotating shaft 22 are fixed to each other. In the unlocked state, the bushing 23 and the rotating shaft 22 can move relative to each other. The bushing 23 can move relative to the rotating shaft 22, so that the door can be opened upward in an arc to adjust the installation angle of the door. When the door is fixed on the door bottom clamping assembly 31, the locking assembly is used to lock the bushing 23 and the rotating shaft 22, which can prevent the door from moving relative to the rotating shaft 22. When the angle of the door needs to be adjusted, the bushing 23 and the rotating shaft 22 can be unlocked.

[0044] When the door is installed at the door frame, the surface difference between the door and the door frame cannot be adjusted to the preset value. The top of the door is initially fixed to the door frame. At this time, the door needs to be rotated by a certain angle to adjust the surface difference between the door and the door frame. After the door is rotated by a certain angle, the installation position of the lock catch can also be adjusted. The bushing 23 and the rotating shaft 22 are unlocked, so that the bushing 23 can move relative to the rotating shaft 22. The door bottom clamping assembly 31 is located on the bushing 23. Push the door installation tooling 100 toward the side away from the door frame and adjust the Z-direction adjustment mechanism 41 at the same time. When pushing the door installation tooling 100, since the top of the door is initially fixed to the door frame, the bushing 23 can move relative to the rotating shaft 22, so that the door installation tooling 100 can move toward the side away from the door frame, so that the door can be opened by a certain angle to adjust the surface difference between the door and the door frame.

[0045] For example, the locking assembly can be an electromagnetic clutch locking mechanism or a mechanical locking device, etc.

[0046] According to some embodiments of the present invention, referring to Figures 1-4 , the bushing 23 is further provided with an angle adjustment mechanism 231 for adjusting the angle between the door bottom clamping assembly 31 and the rotating shaft 22. The rotating shaft 22 and the bushing 23 can rotate relative to each other. At the same time, there is a locking assembly between the rotating shaft 22 and the bushing 23. When the locking assembly locks the rotating shaft 22 and the bushing 23, the angle between the door bottom clamping assembly 31 and the rotating shaft 22 will change. By setting the angle adjustment mechanism 231, the angle between the door bottom clamping assembly 31 and the rotating shaft 22 can be adjusted to improve the accuracy of installing the door on the door frame.

[0047] According to some embodiments of the present invention, referring to Figures 1-4 , the door clamping mechanism 30 further includes a door top clamping assembly 32, and the door top clamping assembly 32 is used to clamp the top of the door.

[0048] The clamping assembly 32 at the top of the vehicle door includes a first connecting rod 321, a second connecting rod 322, a third connecting rod 323, and a first clamping plate 324. The first connecting rod 321 is connected to one side of the rotating shaft 22 close to the fixed plate 12. The second connecting rod 322 is connected above the first connecting rod 321. The third connecting rod 323 is connected to one end of the second connecting rod 322 facing away from the fixed plate 12. The first clamping plate 324 is connected to one end of the third connecting rod 323 facing away from the fixed plate 12 and is rotatably connected to the third connecting rod 323.

[0049] The first clamping plate 324 is rotatably connected to the third connecting rod 323. When the vehicle door is installed on the vehicle door installation tooling 100, the first clamping plate 324 can be rotated above the third connecting rod 323. After clamping the top of the vehicle door, the first clamping plate 324 is rotated down to clamp the top of the vehicle door. Through the combined action of the clamping assembly 31 at the bottom of the vehicle door and the clamping assembly 32 at the top of the vehicle door, the bottom and top of the vehicle door are clamped, thereby increasing the stability of the vehicle door installation tooling 100 when fixing the vehicle door.

[0050] When adjusting the angle of the vehicle door through the movement of the bushing 23, in order to prevent the vehicle door from not being able to rotate and open by a certain angle, the first clamping plate 324 is rotated above the third connecting rod 323. At this time, the clamping assembly 32 at the top of the vehicle door does not clamp the top of the vehicle door.

[0051] According to some embodiments of the present invention, referring to Figures 1-4 , the second frame 20 further includes a support arm 24 connected to the connection bracket 21. The support arm 24 extends in the direction of the vehicle door. The detection mechanism 44 is installed on the support arm 24, so that the detection mechanism 44 is flush with the vehicle door in the X direction, which is convenient for the detection mechanism 44 to detect the surface difference between the vehicle door and the door frame.

[0052] In a specific example, the second frame 20 further includes a support plate 27. The support plate 27 is connected to one side of the two connection brackets 21 facing away from the fixed plate 12. The support arm 24 is connected to the support plate 27. The support arm 24 includes a first support arm 241, a second support arm 242, and a third support arm 243. The first support arm 241 is connected to the support plate 27 and extends upward. The second support arm 242 is connected to one end of the first support arm 241 away from the connection bracket 21 and extends along the X direction. The third support arm 243 is connected to one end of the second support arm 242 away from the first support arm 241 and extends in the direction of the vehicle door. The detection mechanism 44 is provided on the side of the third support arm 243 facing the vehicle door, so that the detection mechanism 44 is flush with the vehicle door in the X direction, which is convenient for the detection mechanism 44 to detect the surface difference between the vehicle door and the door frame.

[0053] According to some embodiments of the present invention, referring to Figures 1-4, the door installation tooling 100 further includes an X-direction positioning member 43. The X-direction positioning member 43 is installed on the support arm 24. Specifically, the X-direction positioning member 43 is installed on the third support arm 243. The detection mechanism 44 can be installed on the X-direction positioning member 43, saving the number of mounting brackets for installing the X-direction positioning member 43 and the detection mechanism 44.

[0054] The X-direction positioning member 43 is adapted to abut against the doorframe to limit the position of the door relative to the doorframe in the X direction. The gap between the door and the doorframe in the X direction can be adjusted through the X-direction positioning member 43, improving the accuracy when the door is installed on the doorframe. For example, the X-direction positioning member 43 can be a positioning block.

[0055] According to some embodiments of the present invention, referring to Figures 1-4 , the door installation tooling 100 further includes a Y-direction adjustment mechanism 42. The Y-direction adjustment mechanism 42 is installed between the first frame 10 and the second frame 20 and is used to drive the second frame 20 to move in the Y direction. The Y-direction adjustment mechanism 42 has higher accuracy in adjusting the position of the door in the Y direction relative to the universal wheel 13. Especially when adjusting the opening angle of the door, the adjusted position of the door in the Y direction is more accurate.

[0056] For example, the second frame 20 further includes a telescopic rod 26. One end of the telescopic rod 26 is connected to the fixed plate 12, and the other end is connected to the connecting rod 25. The telescopic rod 26 can extend and retract relative to the fixed plate 12, driving the connecting rod 25 to move in the Y direction at the same time. One end of the telescopic rod 26 is also connected to the Z-direction adjustment mechanism 41. When the Z-direction adjustment mechanism 41 moves in the Z direction, it can drive the telescopic rod 26 to move in the Z direction to achieve the purpose of adjusting the second frame 20 in both the Z direction and the Y direction at the same time.

[0057] In the description of this specification, the descriptions referring to terms such as "some embodiments", "optionally", "furthermore" or "some examples" etc. mean that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0058] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and purposes of the present invention. The scope of the present invention is defined by the claims and their equivalents.

Claims

1. A vehicle door installation tool, characterized in that: include: A first frame, wherein a universal wheel is disposed at the bottom of the first frame; a second frame, the second frame being movably connected to the first frame; a door clamping mechanism, the door clamping mechanism being mounted on the second frame; A Z-direction adjustment mechanism, the Z-direction adjustment mechanism is installed between the first frame and the second frame, and is used to drive the second frame to move in the Z direction; A detection mechanism is installed on the second frame, and is used to detect the surface difference between the vehicle door and the door frame.

2. The vehicle door installation tool according to claim 1, characterized in that: There are two detection mechanisms, and the two detection mechanisms are respectively located at two ends of the vehicle door in the X direction.

3. The vehicle door installation tool according to claim 1, characterized in that: The first frame includes a base and a fixed plate installed above the base, the universal wheel is provided at the bottom of the base, the second frame includes two connecting brackets, the two connecting brackets are respectively located on both sides of the X direction of the fixed plate, and the two connecting brackets extend along the Y direction, the Z-direction adjustment mechanism is provided on the fixed plate, the Z-direction adjustment mechanism is connected to the connecting bracket, and the door clamping mechanism is provided on the side of the connecting bracket away from the fixed plate.

4. The vehicle door installation tool according to claim 3, characterized in that: The door clamping mechanism comprises a door bottom clamping assembly, which is used to clamp the bottom of the door. The second frame also comprises a rotating shaft located between the two connecting brackets, and the door bottom clamping assembly is mounted on the rotating shaft.

5. The vehicle door installation tool according to claim 4, characterized in that: The outer peripheral side sleeve of the rotating shaft is provided with a shaft sleeve, the door bottom clamping assembly is installed on the shaft sleeve, the shaft sleeve can move relative to the rotating shaft, and the door installation tool also includes a locking assembly, which is connected between the shaft sleeve and the rotating shaft for locking or unlocking the shaft sleeve and the rotating shaft.

6. The vehicle door installation tool according to claim 5, characterized in that: The shaft sleeve is also provided with an angle adjustment mechanism for adjusting the angle between the door bottom clamping assembly and the rotating shaft.

7. The vehicle door installation tool according to claim 4, characterized in that: The vehicle door clamping mechanism also includes a vehicle door top clamping assembly, which is used to clamp the top of the vehicle door. The vehicle door top clamping assembly includes a first connecting rod, a second connecting rod, a third connecting rod and a first clamping plate. The first connecting rod is connected to the side of the rotating shaft close to the fixed plate, the second connecting rod is connected above the first connecting rod, the third connecting rod is connected to the end of the second connecting rod facing away from the fixed plate, and the first clamping plate is connected to the end of the third connecting rod facing away from the fixed plate and is rotatably connected to the third connecting rod.

8. The vehicle door installation tool according to claim 3, characterized in that: The second frame also includes a support arm connected to the connecting bracket, the support arm extends toward the vehicle door, and the detection mechanism is installed on the support arm so that the detection mechanism is flush with the vehicle door in the X direction.

9. The vehicle door installation tool according to claim 8, characterized in that: It also includes an X-direction positioning member, which is installed on the support arm and is suitable for abutting against the door frame to limit the position of the vehicle door relative to the door frame in the X direction.

10. The vehicle door installation tool according to any one of claims 1 to 9, characterized in that: It also includes a Y-direction adjustment mechanism, which is installed between the first frame and the second frame and is used to drive the second frame to move in the Y direction.

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