CN210704477U

CN210704477U - Door assembly fixture and structure

Info

Publication number: CN210704477U
Application number: CN201920288887.7U
Authority: CN
Inventors: 徐茂林; 李成杰; 叶小军; 熊建华
Original assignee: Chongqing Branch of DFSK Motor Co Ltd
Current assignee: Chongqing Branch of DFSK Motor Co Ltd
Priority date: 2019-03-07
Filing date: 2019-03-07
Publication date: 2020-06-09
Anticipated expiration: 2029-03-07

Abstract

The utility model discloses a door assembly fixture, including frock main part, first fixture and positioning mechanism, first fixture sets up in the main part with positioning mechanism, the main part is used for fixing on the automobile body through first fixture, positioning mechanism includes door location structure and assists location structure, be equipped with the first through-hole that link up around a plurality of in the main part. Above-mentioned scheme is through being provided with a plurality of through-holes on the frock, has reduced the weight of frock on the one hand, convenient transportation and installation, and on the other hand makes annex (if hold in the palm the post) can install on the frock through a plurality of through-holes. Because a plurality of through-holes distribute on whole frock, the user can be according to actual conditions rotatory position of installing the annex for the user can assemble the frock more conveniently.

Description

Door assembly fixture and structure

Technical Field

The utility model relates to the field of machinary, especially, relate to a door assembly fixture and structure.

Background

The following is merely an acknowledgement of the knowledge of the relevant technical field by the utility model and does not necessarily constitute prior art.

The automobile side faces are the critical areas for subjective evaluation of the appearance quality of the whole automobile, the most important of the side face areas are front doors/rear doors and fenders, and most of the existing automobile types are influenced by the precision of parts of the front doors and the rear doors and the assembly scheme, so that gaps between the front doors and the fenders are uneven, the height of the surface difference is uneven, and the appearance evaluation of a client on the automobile type is directly influenced.

SUMMERY OF THE UTILITY MODEL

In order to overcome the not enough of prior art, this application provides a door assembly fixture easy to assemble and structure makes things convenient for the door to accurately install on the automobile body.

In order to solve the above technical problem, the utility model discloses the technical scheme content that adopts specifically as follows:

on the one hand, a door assembly fixture, includes frock main part, first fixture and positioning mechanism, first fixture sets up in the main part with positioning mechanism, the main part is used for fixing on the automobile body through first fixture, positioning mechanism includes door positioning mechanism, door positioning mechanism and door phase-match, be equipped with a plurality of first through-holes that link up around in the main part.

In one possible embodiment, the vehicle door positioning structure comprises a guide base, a first positioning piece and a fifth fixing piece, wherein a guide hole matched with the first positioning piece is formed in the guide base, and the fifth fixing piece is used for fixing the first positioning piece on the guide base;

preferably, the fifth fixing part is of a bolt structure, a bolt hole matched with the fifth fixing part is formed in the guide base, a guide through hole is formed in the first positioning part, and the fifth fixing part penetrates through the guide through hole to be matched with the bolt hole of the guide base to fix the first positioning part. It should be understood that the first locating member matches the locating aperture of the door. The workman can adjust the clearance of door and frock through the position of adjusting first locating piece (with first locating piece along guiding hole back-and-forth movement) to finally realize the adjustment to door and car frame position.

In this embodiment, first locating piece one end is equipped with the locating pin, the locating pin matches with the locating hole of door. And in one possible embodiment, the first positioning piece is provided with a handle.

In one possible embodiment, the positioning mechanism further comprises an auxiliary positioning mechanism, the auxiliary positioning mechanism comprises a boss arranged on the main body, a second positioning piece is arranged on the boss, and the second positioning piece is movably arranged on the boss.

Preferably, the boss is located between the main body and the second positioning piece, a surface of the boss opposite to the second positioning piece is a first plane, and a moving direction of the second positioning piece is perpendicular to the first plane; preferably, the first plane is parallel to the front surface of the body; preferably, the boss is of cylindrical configuration; more precisely, the boss is of a right cylindrical structure;

preferably, the boss is provided with a guide rod, the guide rod extends along the front-back direction, and the second positioning piece is movably arranged on the guide rod.

More preferably, the guide rod is provided with threads, and the second positioning piece is provided with threads matched with the guide rod;

more preferably, a gasket is arranged between the second positioning piece and the boss.

In one possible embodiment, the first clamping mechanism comprises a first clamp and a second clamp which are respectively arranged at the left side and the right side of the main body;

preferably, the first clamp comprises a first base, a first rotating arm rotatably connected with the first base, and a first clamping plate; a first pressure arm is arranged on the first rotating arm, one end of the first pressure arm is movably arranged on the first rotating arm, and the other end of the second pressure arm is abutted against the first clamping plate; the first base is mounted on the main body, and the first clamp plate is also mounted on the main body.

More preferably, a pressure head is arranged on the first pressure arm;

preferably, the second clamp comprises a second base, a second rotating arm rotatably connected with the second base and a second clamping plate, a second pressing arm is arranged on the second rotating arm, one end of the second pressing arm is movably mounted on the second rotating arm, and the other end of the second pressing arm abuts against the second clamping plate; the second base is mounted on the body, and the second clamp plate is also mounted on the body.

More preferably, a pressure head is arranged on the first pressure arm;

preferably, the first clamp and the second clamp are provided with handles, more preferably, the first rotating arm is provided with a handle, and the second rotating arm is provided with a handle.

In one possible embodiment, a first position adjusting and fixing device is arranged on the first rotating arm and/or a second position adjusting and fixing device is arranged on the first pressing arm;

the first pressure arm is adjusted and fixed on the first rotating arm along the left-right direction through a first position adjusting and fixing device, and is adjusted and fixed on the first rotating arm along the up-down direction through a second position adjusting and fixing device;

preferably, the first position adjusting and fixing device comprises a first guide groove arranged on the first rotating arm along the left-right direction;

preferably, the second position adjusting and fixing device may be a buckle structure, a bolt structure or a magnetic connection structure, and preferably, the second position adjusting and fixing device includes a first fixing member and a second fixing member movably disposed on the first pressure arm, the first fixing member is located above the first rotating arm, the second fixing member is located below the first rotating arm, and the first pressure arm is fixed on the first rotating arm by the first fixing member and the second fixing member;

more preferably, the first fixing piece and the second fixing piece are of bolt structures; optimally, the first fixing piece and the second fixing piece are nuts;

also more preferably, the second position adjustment fixing device includes a spacer located between the first fixing member and the first rotating arm and/or between the second fixing member and the first rotating arm.

In one possible embodiment, the main body is further provided with a bottom supporting structure, the bottom supporting structure comprises a supporting portion and a connecting portion, the supporting portion is used for supporting the vehicle door at the bottom of the vehicle door, one end of the connecting portion is connected with the tool main body, and the other end of the connecting portion is connected with the supporting portion;

preferably, the support portion comprises a first plane and a second plane which are connected in a bending mode, one end of the first plane is connected with the connecting portion, the other end of the first plane is connected with the second plane, and the first plane is used for supporting the vehicle door at the bottom of the vehicle door.

In one possible embodiment, the body is provided with a bottom bayonet structure for cooperating with a vehicle body (more precisely, a bottom door frame) so that the body is fixed to the vehicle.

In one possible embodiment, the vehicle door assembling tool further comprises a plurality of support columns, the support columns are used for supporting and fixing the vehicle door, the support columns are detachably mounted on the main body, preferably, the support columns are provided with first fixing structures, and the support columns are fixed on the main body through the matching of the first fixing structures and the first through holes.

In one possible embodiment, a second fixing structure is provided on the main body for limiting the position of the vehicle door.

On the other hand, the vehicle door assembling structure comprises a vehicle body and the vehicle door assembling tool, wherein the vehicle body comprises a vehicle door frame, the vehicle door frame comprises a left door frame positioned on the left side, a right door frame positioned on the right side and a bottom door frame positioned at the bottom, and the left door frame, the right door frame and the bottom door frame are all arranged on the vehicle body; preferably, the first clamping mechanism fixes the main body and the vehicle body by matching with the left door frame and the right door frame;

preferably, the bottom bayonet structure mates with a bottom door frame.

Compared with the prior art, the scheme has the advantages that:

(1) above-mentioned scheme is through being provided with a plurality of through-holes on the frock, has reduced the weight of frock on the one hand, convenient transportation and installation, and on the other hand makes annex (if hold in the palm the post) can install on the frock through a plurality of through-holes.

(2) Because a plurality of through-holes distribute on whole frock, the user can be according to actual conditions rotatory position of installing the annex for the user can assemble the frock more conveniently.

(3) Through set up first fixture and bottom bayonet structure on the frock for the frock can install on the automobile body more steadily.

Drawings

Fig. 1 is a schematic structural view (front view) of embodiment 1.

Fig. 2 is a schematic structural view (side view) of embodiment 1.

Fig. 3 is a schematic structural view of a bottom support structure in example 1.

Fig. 4 is a schematic structural view (top view) of embodiment 1.

Fig. 5 is a schematic structural view (side view) of a door positioning mechanism in embodiment 1.

Fig. 6 is a schematic structural view (plan view) of a door positioning mechanism in embodiment 1.

Fig. 7 is a schematic structural view of the support column in embodiment 1.

Fig. 8 is a schematic structural view (sectional view) of the auxiliary positioning mechanism in embodiment 1 when combined with a vehicle body.

Fig. 9 is a schematic structural view of a first jig in embodiment 1.

Fig. 10 is a schematic structural view (top view) of the first jig in embodiment 1.

Fig. 11 is a schematic structural diagram of the first rotating arm in embodiment 1.

Fig. 12 is a schematic structural view when embodiment 1 is combined with a vehicle body.

Fig. 13 is a schematic structural view of section a.

Fig. 14 is a schematic structural view of section B.

Fig. 15 is a schematic structural view of the auxiliary positioning mechanism.

The labels in the figure are: 1. a main body; 11. a first through hole; 2. a first clamp; 21. a first base; 22. a first rotating arm; 23. a first splint; 24. a first press arm; 25. a first guide groove; 3. a second clamp; 4. a door positioning mechanism; 41. a guide base; 42. a first positioning member; 43. a fifth fixing member; 5. an auxiliary positioning mechanism; 51. a boss; 52. a second positioning member; 6. a bottom support structure; 61. a support portion; 62. a connecting portion; 63. a bottom bayonet structure; 64. supporting a column; 7. a vehicle body; 8. a second fixed structure.

Detailed Description

To further illustrate the technical means and effects of the present invention adopted to achieve the intended purpose of the present invention, the following detailed description is given to the embodiments, structures, features and effects according to the present invention with reference to the accompanying drawings and preferred embodiments as follows:

example 1

As shown in fig. 1, 2 and 4, a vehicle door assembling tool comprises a tool main body 1, a first clamping mechanism and a positioning mechanism, wherein the first clamping mechanism and the positioning mechanism are arranged on the main body 1, the main body 1 is used for being fixed on a vehicle body 7 through the first clamping mechanism, the positioning mechanism comprises a vehicle door positioning mechanism 4, and a plurality of first through holes 11 which are through from front to back are formed in the main body 1.

In one of the possible embodiments, the first through holes 11 are distributed, partially or totally, uniformly on the body 1;

preferably, the body 1 is a frame structure.

Preferably, the positioning mechanism comprises more than one door positioning mechanism 4, preferably two, respectively arranged on the left and right sides of the main body 1. It should be understood that in the present embodiment, the door positioning structure may be a simple structure provided with only one fixing pin disposed in the front-rear direction, in addition to the above-described structure including the guide base 41, the first positioning member 42, and the fifth fixing member 43.

Preferably, said first through holes 11 are distributed on the body 1.

Preferably, the body 1 is a frame structure.

As shown in fig. 5 and 6, the vehicle door positioning mechanism 4 includes a guide base 41, a first positioning member 42, and a fifth fixing member 43, wherein a guide hole matched with the first positioning member 42 is formed on the guide base 41, and the fifth fixing member 43 is used for fixing the first positioning member 42 on the guide base 41;

preferably, the fifth fixing member 43 is a bolt structure, a bolt hole matched with the fifth fixing member 43 is formed in the guide base 41, a guide through hole is formed in the first positioning member 42, and the fifth fixing member 43 penetrates through the guide through hole to be matched with the bolt hole of the guide base 41 to fix the first positioning member 42. It should be understood that the first positioning member 42 is a pin structure and is disposed in a front-to-rear direction. More specifically, the first positioning member 42 has a fixing pin at a front end portion thereof and a handle at a rear end portion thereof.

Preferably, the positioning mechanism further comprises an auxiliary positioning mechanism 5, the auxiliary positioning mechanism 5 comprises a boss 51 arranged on the main body 1, a second positioning member 52 is arranged on the boss 51, and the second positioning member 52 is movably mounted on the boss 51. It should be understood that in the present embodiment, the boss 51 and the second positioning member 52 are used to limit the relative position of the vehicle body 7 and the tooling in the above-mentioned solution, so that the tooling and the vehicle body 7 cannot move in the up-down, left-right directions, but only can move in the front-back direction, thereby adjusting the front-back position of the door installation. It should be understood that positioning holes are provided on the vehicle body to match the second positioning member 52 and the boss 51.

Preferably, the boss 51 is located between the main body 1 and the second positioning member 52, a surface of the boss 51 opposite to the second positioning member 52 is a first plane, and a moving direction of the second positioning member 52 is perpendicular to the first plane; preferably, said first plane is parallel to the front surface of the body 1; preferably, the boss 51 is of cylindrical configuration; more precisely, the boss 51 is of a right cylindrical configuration;

preferably, the boss 51 is provided with a guide rod (not shown in the figures), the guide rod extends along the front-back direction, and the second positioning member 52 is movably arranged on the guide rod.

More preferably, the guide rod is provided with a thread, and the second positioning element 52 is provided with a thread matched with the guide rod; the second positioning member 52 can be moved back and forth on the guide bar by screw-fitting (the second positioning member 52 and the screw thread of the guide bar). The second positioning member 52 is a positioning pin structure in this embodiment.

More preferably, a gasket (not shown) is disposed between the second positioning member 52 and the boss 51. In this embodiment, in order to ensure that the second positioning element 52 does not move back after being pressed, after the second positioning element 52 moves forward for a certain distance, a gasket is required to be added between the second positioning element 52 and the first plane to improve the installation stability of the second positioning element 52.

As shown in fig. 15, it is preferable that the auxiliary positioning mechanism 5 is detachably mounted on the main body 1, and it is more preferable that the auxiliary positioning mechanism 5 is detachably mounted on the main body 1 by a bolt structure. More specifically, the boss 51 is detachably mounted on the main body 1 by a coupling plate and bolt structure.

The first clamping mechanism comprises a first clamp 2 and a second clamp 3 which are respectively arranged at the left side and the right side of the main body 1;

preferably, as shown in fig. 9-11, the first clamp 2 includes a first base 21, a first rotating arm 22 rotatably connected to the first base 21, and a first clamping plate 23; a first pressure arm 24 is arranged on the first rotating arm 22, one end of the first pressure arm 24 is movably arranged on the first rotating arm 22, and the other end of the first pressure arm normally abuts against one end of the first clamping plate 23; the other end of the first clamping plate 23 is fixed on the main body 1.

Preferably, a reset piece is arranged between the first rotating arm 22 and the first base 21, and the first rotating arm 22 is restored to the original position after rotating through the reset piece, so that the first pressing arm 24 abuts against the first clamping plate 23. The return member is preferably a spring.

More preferably, a pressure head is arranged on the first pressure arm 24;

preferably, handles are arranged on the first clamp 2 and the second clamp 3, and more preferably, a handle is arranged on the first rotating arm 22, and a handle is arranged on the second rotating arm. The user can drive the first rotating arm 22 to rotate by rotating the handle, so as to drive the pressing arm 24 installed on the first rotating arm 22 to rotate, thereby realizing the opening and closing of the first clamp 2.

A first position adjusting and fixing device is arranged on the first rotating arm 22 and/or a second position adjusting and fixing device is arranged on the first pressing arm 24;

the first pressure arm 24 adjusts and fixes the position on the first rotating arm 22 along the left-right direction through a first position adjusting and fixing device, and the first pressure arm 24 adjusts and fixes the position on the first rotating arm 22 along the up-down direction through a second position adjusting and fixing device;

preferably, the first position adjustment fixing means includes a first guide groove 25 provided in the left-right direction on the first rotating arm 22;

preferably, the second position adjusting and fixing device may be a buckle structure, a bolt structure or a magnetic connection structure, and preferably, the second position adjusting and fixing device includes a first fixing member and a second fixing member movably disposed on the first pressing arm 24, the first fixing member is located above the first rotating arm 22, the second fixing member is located below the first rotating arm 22, and the first pressing arm 24 is fixedly clamped on the first rotating arm 22 through the first fixing member and the second fixing member, so that the first pressing arm 24 cannot freely move up and down along the first rotating arm 22.

More preferably, as shown in fig. 10, the first fixing member and the second fixing member are of a bolt structure; optimally, the first fixing piece and the second fixing piece are nuts; preferably an adjusting nut.

Also more preferably, the second position adjustment fixing means includes a spacer located between the first fixing member and the first rotating arm 22 and/or between the second fixing member and the first rotating arm 22. More specifically, the second position adjusting fixing device includes two gaskets, one of which is located between the first fixing member and the first rotating arm 22, and the other of which is located between the second fixing member and the first rotating arm 22.

Preferably, the second clamp 3 includes a second base, a second rotating arm rotatably connected to the second base, and a second clamping plate, a second pressing arm is disposed on the second rotating arm, one end of the second pressing arm is movably mounted on the second rotating arm, and the other end of the second pressing arm normally abuts against one end of the second clamping plate; the other end of the second clamping plate is connected with the body through a bolt, and the second base is fixed on the body through a bolt.

Preferably, be equipped with the piece that resets between second swinging boom and the second base, make the second swinging boom resume original position after rotating through the piece that resets, let the second press arm support and lean on the second splint. The return member is preferably a spring.

More preferably, the second pressure arm is provided with a pressure head.

A third position adjusting and fixing device is arranged on the second rotating arm and/or a fourth position adjusting and fixing device is arranged on the second pressure arm;

the second pressure arm adjusts and fixes the position on the second rotating arm along the left-right direction through a third position adjusting and fixing device, and adjusts and fixes the position on the first rotating arm 22 along the up-down direction through a fourth position adjusting and fixing device;

preferably, the third position adjusting and fixing device includes a second guide groove provided on the second rotating arm in the left-right direction;

preferably, the fourth position adjusting and fixing device may be a buckle structure, a bolt structure or a magnetic connection structure, and preferably, the fourth position adjusting and fixing device includes a third fixing member and a fourth fixing member movably disposed on the first pressing arm 24, the third fixing member is disposed above the second rotating arm, the fourth fixing member is disposed below the second rotating arm, and the second pressing arm is fixedly clamped on the second rotating arm through the third fixing member and the fourth fixing member, so that the second pressing arm cannot freely move up and down along the second rotating arm.

More preferably, the third fixing piece and the fourth fixing piece are of bolt structures; optimally, the third fixing piece and the fourth fixing piece are nuts; preferably an adjusting nut.

Also more preferably, the fourth position adjustment fixing device includes a spacer located between the third fixing member and the second rotating arm and/or located between the fourth fixing member and the second rotating arm. More specifically, the fourth position adjusting and fixing device includes two gaskets, one of which is located between the third fixing member and the second rotating arm, and the other of which is located between the fourth fixing member and the second rotating arm.

As shown in fig. 3, the main body 1 is further provided with a bottom support structure 6, the bottom support structure 6 includes a support portion 61 and a connecting portion 62, the support portion 61 is used for supporting the door at the bottom of the door, one end of the connecting portion 62 is connected with the tool main body 1, and the other end is connected with the support portion 61. It will be appreciated that the door is placed on the body 1 by the bottom support structure 6.

Preferably, the support portion 61 includes a first plane and a second plane which are connected in a bending manner, one end of the first plane is connected with the connecting portion 62, and the other end of the first plane is connected with the second plane, and the first plane is used for supporting the vehicle door at the bottom of the vehicle door.

The main body 1 is provided with a bottom bayonet structure 63 (in this embodiment, the bottom bayonet structure 63 is disposed on the connecting portion 62), and the bottom bayonet structure 63 is used for being matched with the vehicle body 7, so that the main body 1 is fixed on the vehicle. Preferably, said bottom bayonet structure 63 comprises a first groove cooperating with the body 7 so that the body 1 can be placed more firmly on the bottom bayonet structure 63.

The vehicle door assembling tool further comprises a plurality of support columns 64, as shown in fig. 7, the support columns 64 are used for supporting and fixing the vehicle door, the support columns 64 are detachably mounted on the main body 1, preferably, the support columns 64 are provided with first fixing structures, and the support columns 64 are fixed on the main body 1 through the cooperation of the first fixing structures and the first through holes 11. The first fixing structure is a bolt structure, preferably, the first fixing structure comprises a bolt and a nut, the support column 64 is provided with a first fixing through hole, and a screw rod of the bolt penetrates through the through hole and then is matched with the nut to fix the support column 64 on the main body 1. Preferably, the support column 64 is provided with two or more first fixing through holes.

The main body 1 is provided with a second fixing structure 8, and the second fixing structure 8 is used for limiting the position of the vehicle door. Preferably, said second fixed structure 8 is rotatably connected to the second fixed structure 8; more preferably, the second fixing structure 8 comprises a handle and a clamping portion, the handle is fixedly connected with the clamping portion, and the handle or the clamping portion is rotatably connected to the second fixing structure 8, more precisely, the handle or the clamping portion is hinged to the second fixing structure 8.

When being matched with the vehicle door, the second fixing structure 8 is firstly rotated, so that the second fixing structure is horizontally placed, the vehicle door is positioned below the second fixing structure, then the second fixing structure is loosened, the clamping part falls down, and the vehicle door is clamped between the clamping part and the body.

Preferably, the main body is provided with a signboard. More preferably, the signboard is fixed to the main body through the first through hole 11.

Example 2

A vehicle door assembling structure comprises a vehicle body 7 and the vehicle door assembling tool, as shown in fig. 13 and 14, the vehicle body 7 comprises a vehicle door frame, the vehicle door frame comprises a left door frame (namely, a left spigot edge) positioned on the left side, a right door frame (namely, a right spigot edge) positioned on the right side and a bottom door frame (namely, a bottom spigot edge) positioned at the bottom, and the left door frame, the right door frame and the bottom door frame are all arranged on the vehicle body 7; preferably, the first clamping mechanism (the first clamp 2 and the second clamp 3) fixes the main body 1 and the vehicle body 7 by cooperating with the left door frame and the right door frame;

preferably, the bottom bayonet structure 63 mates with a bottom door frame. This application makes main part 1 and automobile body 7 fixed connection through bottom bayonet structure 63 and bottom door frame cooperation. It will be appreciated that the above-described fixing provides an additional fixing effect so that the main body 1 and the vehicle body 7 are more firmly combined together.

Preferably, the front-rear position adjustment between the main body 1 and the vehicle body 7 can be achieved by adjusting the front-rear position of the second positioning member 52 in the auxiliary positioning mechanism 5 (adjustment is achieved by adding a spacer between the second positioning member 52 and the boss 51).

Meanwhile, when the vehicle door is installed, the front and rear positions between the vehicle door and the main body 1 are adjusted through the vehicle door positioning mechanism 4, so that the position of the vehicle door is adjusted, and accurate adjustment is realized.

The above embodiments are only preferred embodiments of the present invention, and the protection scope of the present invention cannot be limited thereby, and any insubstantial changes and substitutions made by those skilled in the art based on the present invention are all within the protection scope of the present invention.

Claims

1. The utility model provides a door assembly fixture, includes frock main part, a fixture and positioning mechanism, a fixture sets up in the main part with positioning mechanism, its characterized in that, the main part is fixed on the automobile body through a fixture, positioning mechanism includes door positioning mechanism, be equipped with a plurality of first through-holes that link up around in the main part.

2. The vehicle door assembling tool according to claim 1, wherein the first clamping mechanism comprises a first clamp and a second clamp which are respectively arranged on the left side and the right side of the main body.

3. The vehicle door assembling tool according to claim 2, wherein the first clamp comprises a first base, a first rotating arm rotatably connected with the first base and a first clamping plate; be equipped with first pressure arm on the first swinging boom, the one end movable mounting of first pressure arm is on first swinging boom, and the other end of first pressure arm supports and leans on first splint, first splint are installed in the main part, first pedestal mounting is in the main part.

4. The vehicle door assembling tool according to claim 3, wherein a pressure head is arranged on the first pressure arm.

5. The vehicle door assembling tool according to claim 2, wherein the second clamp comprises a second base, a second rotating arm and a second clamping plate, the second rotating arm is rotatably connected with the second base, a second pressing arm is arranged on the second rotating arm, one end of the second pressing arm is movably mounted on the second rotating arm, the other end of the second pressing arm abuts against the second clamping plate, the second base is mounted on the main body, and the second clamping plate is mounted on the main body.

6. The vehicle door assembling tool according to claim 5, wherein a pressure head is arranged on the second pressure arm.

7. The vehicle door assembling tool according to claim 3, wherein handles are arranged on the first clamp and the second clamp.

8. The vehicle door assembling tool according to claim 7, wherein a handle is arranged on the first rotating arm, and a handle is arranged on the second rotating arm.

9. The vehicle door assembling tool according to claim 3, wherein a first position adjusting and fixing device is arranged on the first rotating arm and/or a second position adjusting and fixing device is arranged on the first pressing arm;

the first pressure arm is adjusted and fixed on the first rotating arm along the left-right direction through a first position adjusting and fixing device, and is adjusted and fixed on the first rotating arm along the up-down direction through a second position adjusting and fixing device.

10. The vehicle door assembling tool according to claim 9, wherein the first position adjusting and fixing device includes a first guide groove provided on the first rotating arm in a left-right direction.

11. The vehicle door assembling tool according to claim 9, wherein the second position adjusting and fixing device can be a snap structure, a bolt structure or a magnetic connection structure.

12. The vehicle door assembling tool according to claim 11, wherein the second position adjusting and fixing device includes a first fixing member and a second fixing member movably disposed on the first pressing arm, the first fixing member is located above the first rotating arm, the second fixing member is located below the first rotating arm, and the first pressing arm is fixed on the first rotating arm through the first fixing member and the second fixing member.

13. A vehicle door assembling tool according to claim 12, wherein the second position adjusting and fixing device includes a gasket, and the gasket is located between the first fixing member and the first rotating arm and/or between the second fixing member and the first rotating arm.

14. The vehicle door assembling tool according to claim 1, wherein the vehicle door positioning mechanism comprises a guide base, a first positioning piece and a fifth fixing piece, a guide hole matched with the first positioning piece is formed in the guide base, and the fifth fixing piece is used for fixing the first positioning piece on the guide base.

15. The vehicle door assembling tool according to claim 14, wherein the fifth fixing member is a bolt structure, a bolt hole matched with the fifth fixing member is formed in the guide base, a guide through hole is formed in the first positioning member, and the fifth fixing member penetrates through the guide through hole and is matched with the bolt hole of the guide base to fix the first positioning member.

16. The vehicle door assembling tool according to claim 1, wherein the positioning mechanism further comprises an auxiliary positioning mechanism, the auxiliary positioning mechanism comprises a boss arranged on the main body, a second positioning piece is arranged on the boss, and the second positioning piece is movably arranged on the boss.

17. A vehicle door assembling tool according to claim 16, wherein the boss is located between the main body and the second positioning member, a surface of the boss opposite to the second positioning member is a first plane, and a moving direction of the second positioning member is perpendicular to the first plane.

18. A vehicle door assembling tool according to claim 17, wherein said first plane is parallel to the front surface of the main body.

19. A vehicle door assembling tool according to claim 16, wherein said boss is of a cylindrical structure.

20. The vehicle door assembling tool according to claim 16, wherein a guide rod is arranged on the boss, the guide rod extends in the front-rear direction, and the second positioning piece is movably arranged on the guide rod.

21. A vehicle door assembling tool according to claim 20, wherein the guide rod is provided with threads, and the second positioning member is provided with threads matched with the guide rod.

22. A vehicle door assembling tool according to claim 21, wherein a gasket is arranged between the second positioning member and the boss.

23. The vehicle door assembling tool according to claim 1, wherein the main body is further provided with a bottom support structure, the bottom support structure comprises a support portion and a connecting portion, the support portion is used for supporting the vehicle door at the bottom of the vehicle door, one end of the connecting portion is connected with the tool main body, and the other end of the connecting portion is connected with the support portion.

24. The vehicle door assembling tool according to claim 23, wherein the supporting portion comprises a first plane and a second plane which are connected in a bending mode, one end of the first plane is connected with the connecting portion, the other end of the first plane is connected with the second plane, and the first plane is used for supporting a vehicle door at the bottom of the vehicle door.

25. The vehicle door assembling tool according to claim 1, wherein a bottom bayonet structure is arranged on the main body and used for being matched with a vehicle body, so that the main body is fixed on the vehicle.

26. The vehicle door assembling tool according to claim 1, further comprising a plurality of support columns, wherein the support columns are used for supporting and fixing the vehicle door, the support columns are detachably mounted on the main body, the support columns are provided with first fixing structures, and the support columns are fixed on the main body through the cooperation of the first fixing structures and the first through holes.

27. The vehicle door assembling tool according to claim 1, wherein a second fixing structure is arranged on the main body and used for limiting the position of a vehicle door.

28. A vehicle door assembling structure, characterized by comprising a vehicle body and the vehicle door assembling tool as claimed in any one of claims 1 to 27, wherein the vehicle body comprises a vehicle door frame, the vehicle door frame comprises a left door frame positioned on the left side, a right door frame positioned on the right side and a bottom door frame positioned at the bottom, and the left door frame, the right door frame and the bottom door frame are all arranged on the vehicle body.

29. A door fitting structure according to claim 28, wherein said first holding mechanism fixes the main body to the vehicle body by engaging with the left door frame and the right door frame.