CN117284399A - Auxiliary fixture for assembling car body cover plate - Google Patents

Abstract

The application provides an auxiliary fixture for assembling a vehicle body cover plate, which comprises a main frame, a cover auxiliary assembly mechanism, a first bracket auxiliary assembly mechanism, a fender profiling detection mechanism and a second bracket auxiliary assembly mechanism, wherein the main frame is arranged above a front section vehicle body frame, the cover auxiliary assembly mechanism is arranged on the main frame, the first bracket auxiliary assembly mechanism, the fender profiling detection mechanism and the second bracket auxiliary assembly mechanism are symmetrically arranged on two sides of the main frame, and the first bracket auxiliary assembly mechanism and the fender profiling detection mechanism are respectively positioned on the front side and the rear side of the second bracket auxiliary assembly mechanism so as to be matched with part of endpoints of the front, middle and rear sides of a fender; the second bracket auxiliary assembly mechanism is used for positioning the set position of the second bracket auxiliary assembly mechanism through the gap between the second bracket auxiliary assembly mechanism and the engine cover, so that the set positions of the first bracket auxiliary assembly mechanism and the fender profile modeling detection mechanism are respectively positioned through the gap between the second bracket auxiliary assembly mechanism and the second bracket auxiliary assembly mechanism, and the assembly positions of the fender, the assembly positions of the front door and the accuracy of the assembly positions of the front car lamp are sequentially detected by taking the assembly positions of the engine cover as measurement references.

Description

Auxiliary fixture for assembling car body cover plate

Technical Field

The application relates to the technical field of tools for assisting in assembling automobile body cover plates, in particular to an auxiliary tool for assembling automobile body cover plates.

Background

In the progressive development of the automotive industry, the appearance of automobiles is becoming more and more important, and the appearance of automobiles can also give consumers the most subjective and preliminary impression. One of the core means for improving the appearance and the quality of the automobile is to improve the matching degree of the cover plate piece on the automobile body frame, so that various automatic cover plate piece auxiliary positioning tools are generated in the automobile field for more accurate assembly, and the process of positioning the cover plate piece is advanced into an automatic era and gradually developed towards the trend of more accurate and more efficient assembly.

The positioning auxiliary tool comprises the positioning auxiliary tool of the fender bracket in the existing auxiliary positioning tool of the cover plate piece, and can position and calibrate the assembly position of the fender bracket on the front-section vehicle body frame to accurately assemble the fender bracket, so that the automatic assembly of the fender bracket is realized; the fender is a side wing cover plate of a front section automobile frame, and two special brackets are specifically required to be respectively positioned at the middle section part and the front section part of the fender for assembly, so that when the mounting positions of the brackets in the fender and the front bracket of the fender are accurately positioned, the subsequent assembly of the fender body can not deviate.

In the prior art, part of defects exist in the assembling process of the fender bracket, and when the assembling process is carried out, the assembling accuracy of the fender bracket can be only achieved, but whether the gap size of the fender and other parts can meet the set matching degree relation is ignored; in particular, the degree of fit of the fender to other surrounding cover components and to the vehicle components is not determined by positioning during the assembly of the fender bracket, for example: the gap size between the fender and the engine cover plate, the gap size between the fender and the front vehicle door and the gap size between the fender and the engine cover and the front vehicle lamp are required to be measured and compared, so that good matching degree of partial components on the front vehicle frame can be ensured, the matching degree between the cover plate piece and the vehicle components is detected when the fender body is assembled, and a large amount of time and tool resources are wasted when the matching degree of each component is regulated.

Disclosure of Invention

The purpose of this embodiment is to provide an auxiliary fixtures of assembly vehicle body apron, the assembly position of engine hood is assisted through the supplementary assembly of lid mechanism, be convenient for connect the hinge structure between engine hood and the anterior segment automobile body frame, so that when the support in the fender is assembled through the supplementary assembly of second support mechanism, can consult the clearance dimension adjustment second support supplementary assembly mechanism's between the engine hood set position, ensure the degree of fit between fender and the engine hood, and the spacing distance of support in the fender front end and fender rear end and the fender is then respectively confirmed through the fender size in the accurate positioning fender support in the fender, thereby the accurate set position of supplementary assembly of first support and fender profile modeling detection mechanism is located, in order to measure the degree of fit of fender and preceding door through fender profile modeling detection mechanism and detect its and the degree of fit of preceding car lamp when assembling the fender front support, advance and be convenient for follow-up to the adjustment of preceding door and preceding car lamp, the problem that need detect each part around the cooperation degree of fender after accomplishing the assembly body is solved, the technological difference of size of front car lamp is realized at the same time at the front car door is detected.

In order to solve the technical problems, the following technical solutions are provided in the embodiments of the present application:

the first aspect of the present application provides an auxiliary tool for assembling a vehicle body cover plate, the auxiliary tool for assembling a vehicle body cover plate mainly comprising a main frame, which is used for positioning and configuring above a front section vehicle body frame; the auxiliary assembly mechanism of the engine cover is arranged on the main frame and is used for assisting in installing the engine cover on the front section of the vehicle body frame in a positioning and supporting mode; the first bracket auxiliary assembly mechanism is arranged on the main frame and is used for auxiliary positioning of the front fender bracket on the front section of the vehicle body frame; the fender profiling detection mechanism is arranged on the main frame, is positioned in the direction opposite to the first bracket auxiliary assembly mechanism, and can be matched with the extension size of the rear end part of the fender; the second bracket auxiliary assembly mechanism is arranged on the main frame, is positioned between the first bracket auxiliary assembly mechanism and the fender profile detection mechanism and is used for auxiliary positioning of the fender middle bracket on the front section of the vehicle body frame; the second bracket auxiliary assembly mechanism can be used for positioning the set position of the second bracket auxiliary assembly mechanism through the gap between the second bracket auxiliary assembly mechanism and the engine cover, so that the set positions of the first bracket auxiliary assembly mechanism and the fender profile detection mechanism can be respectively positioned through the gap between the second bracket auxiliary assembly mechanism and the second bracket auxiliary assembly mechanism.

In some variations of the first aspect of the present application, the cover auxiliary assembly mechanism includes a cover support assembly and a cover positioning assembly disposed opposite the main frame; the engine cover supporting component is arranged on one side of the main frame, which is close to the first bracket auxiliary assembly mechanism, and is used for supporting the engine cover; the bonnet positioning assembly is arranged on one side of the main frame, which is close to the fender profiling detection mechanism, and can be matched with a positioning hole formed in the bonnet.

In some modified embodiments of the first aspect of the present application, the hood support assembly is composed of at least two hood brackets disposed at intervals, and each hood bracket extends above the main frame to be able to support the hood; the cover positioning assembly is composed of at least two cover positioning pins arranged at intervals, and each cover positioning pin can correspond to the symmetrically arranged positioning holes on the engine cover one by one.

In some variations of the first aspect of the present application, the second bracket auxiliary assembly mechanism includes a bracket clamping assembly and a bracket positioning assembly symmetrically disposed on the main frame; the bracket clamping assembly comprises a second active clamping part and a second passive clamping part corresponding to the second active clamping part and is used for fixing the middle fender bracket; the bracket positioning assembly comprises a second main positioning pin and a second auxiliary positioning pin.

In some modified embodiments of the first aspect of the present application, the first bracket auxiliary assembly mechanism includes a fixed bracket symmetrically disposed under the front side of the main frame via the first connection member, and a movable bracket mounted on the fixed bracket through the first driving member; the movable bracket is provided with a bracket positioning and clamping assembly so as to drive the movable bracket to drive the bracket positioning and clamping assembly to move towards the installation position of the front fender bracket through the first driving part.

In some modified embodiments of the first aspect of the present application, the bracket positioning and clamping assembly includes at least two first active clamping portions oppositely disposed on the movable bracket and first passive clamping portions corresponding to the first active clamping portions; the two first passive clamping parts are respectively provided with a first main locating pin and a first auxiliary locating pin.

In some modified embodiments of the first aspect of the present application, the fender profiling detection mechanism includes an adjusting component symmetrically disposed at a rear side of the main frame via a second connecting piece, and a fender rear end profiling component mounted on the adjusting component; the adjusting component comprises a first sliding table structure, a second driving component for driving the first sliding table structure to linearly reciprocate, and a third driving component arranged on the first sliding table structure; the driving direction of the second driving part and the sliding direction of the first sliding table structure are both arranged towards the first direction and are positioned on the same straight line, and the second driving part drives the first sliding table structure to drive the third driving part to linearly reciprocate along the first direction; the third driving part is provided with a fender rear end profiling assembly; the fender rear end profiling assembly can linearly reciprocate along the second direction through the driving of the third driving component, so that automatic two-dimensional adjustment is formed on the adjusting assembly.

In some modified embodiments of the first aspect of the present application, the fender rear end profile assembly is composed of at least two fender profile blocks, and each fender profile block is mounted on the third driving member at intervals along the third direction.

In some variations of the first aspect of the present application, the device further comprises a midline positioning mechanism disposed below the main frame; the center line positioning mechanism comprises a main frame positioning component which can be adjusted along a second direction and a linkage component connected with the main frame positioning component; the main frame positioning assembly can be symmetrically adjusted on the main frame along the second direction through the linkage assembly.

In some variations of the first aspect of the present application, the main frame positioning assembly includes two main frame adjustment positioning pins mounted below the main frame by a second slide table structure that slides in a second direction, the adjustment being adapted to fit into positioning holes on the body damper; the linkage assembly comprises a switching rotating piece rotatably arranged in the middle of the lower part of the main frame and a transmission piece respectively connected between the switching rotating piece and the two second sliding table structures; the first ends of the two transmission parts are respectively connected with the two end parts of the switching rotating part, and the second ends of the two transmission parts are respectively connected with the corresponding second sliding table structure.

In some variations of the first aspect of the present application, the apparatus further comprises a main frame support mechanism disposed on a front side of the main frame; the main frame supporting mechanism at least comprises two frame supporting pieces fixedly connected with the main frame and frame positioning pins respectively arranged on the frame supporting pieces; each frame support can be supported on the tank cross beam and each frame locating pin can be inserted into a corresponding mounting hole on the tank cross beam.

In some variations of the first aspect of the present application, the device further comprises a main frame limiting mechanism, which is symmetrically disposed below the main frame; the main frame limiting mechanism comprises a limiting clamping assembly and a limiting supporting assembly; the limiting clamping assembly and the limiting supporting assembly limit the displacement of the main frame to the opposite direction along the third direction respectively.

In some variations of the first aspect of the present application, the limit clamping assembly includes a locking cylinder mounted below the main frame in a third direction by a cylinder mount and a limit mount mounted on the locking cylinder; the limit bearing assembly at least comprises two supporting parts extending towards the lower part of the main frame along the third direction.

Compared with the prior art, the auxiliary tool for assembling the car body cover plate is mainly characterized in that the auxiliary engine cover is assembled through the auxiliary engine cover assembly mechanism, the set position of the second bracket auxiliary assembly mechanism is positioned through the gap size between the auxiliary engine cover assembly mechanism and the engine cover, the accurate assembly position of the bracket in the fender is ensured, and then the set positions of the first bracket auxiliary assembly mechanism and the fender profile modeling detection mechanism are further accurately positioned through the fender size, so that the assembly position of the fender front bracket and the configuration position of the fender profile modeling detection mechanism are ensured to be accurate, the front car lamp can be used for measuring the deviation size of the assembly position of the front car lamp through the gap size between the front fender bracket and the engine cover, and meanwhile, the rear end part matched with the front car door can be simulated through the position and the shape of the fender profile modeling detection mechanism, so that the deviation size of the assembly position of the front car door can be measured through the fender profile modeling detection mechanism, and whether the assembly position of the front car door and the front car lamp on the car body frame is accurate or not can be accurately assembled when each bracket is accurately assembled, and the adjustment of the assembly position of the front car lamp is further carried out, the adjustment of the assembly position is effectively reduced, and the time for detecting the matching degree of each auxiliary tool is saved when the auxiliary tool is used for detecting the degree.

Drawings

The above, as well as additional purposes, features, and advantages of exemplary embodiments of the present application will become readily apparent from the following detailed description when read in conjunction with the accompanying drawings. Several embodiments of the present application are illustrated by way of example and not by way of limitation in the figures of the accompanying drawings, in which like reference numerals refer to similar or corresponding parts and in which:

fig. 1 schematically shows a schematic perspective view of an auxiliary tool for assembling a vehicle body cover plate, which is provided by the application;

FIG. 2 schematically illustrates a structural schematic view of a second bracket assist assembly mechanism in an embodiment of the present application;

FIG. 3 schematically illustrates a structural schematic view of a first bracket auxiliary assembly mechanism in an embodiment of the present application;

FIG. 4 schematically illustrates a structural schematic of a fender profile detection mechanism in an embodiment of the application;

FIG. 5 schematically illustrates a structural schematic of a midline positioning mechanism in an embodiment of the present application;

FIG. 6 schematically illustrates an installation of a lock cylinder and a stop bracket on a main frame stop mechanism in an embodiment of the present application;

fig. 7 schematically shows a structural schematic diagram of a supporting member in the embodiment of the present application.

Reference numerals illustrate:

1. A main frame;

11. a hanging ring;

2. the first bracket assists the assembly mechanism;

21. a first connector; 22. a fixed bracket; 23. a movable bracket; 24. a first driving part; 25. a first active clamping portion; 26. a first passive clamping portion; 27. a first primary locating pin; 28. a first auxiliary positioning pin;

3. a fender profiling detection mechanism;

31. a second connector; 32. a first slipway structure; 33. a second driving part; 34. a third driving part; 35. a fender profiling block;

4. the second bracket assists the assembly mechanism;

41. a second active clamping portion; 42. a second passive clamping portion; 43. a second primary locating pin; 44. a second auxiliary positioning pin;

5. the auxiliary assembly mechanism of the cover;

51. a cover bracket; 52. a cover positioning pin;

6. a midline positioning mechanism;

61. the main frame adjusts the locating pin; 62. a second slipway structure; 63. a switching rotating piece; 64. a transmission member;

7. a main frame support mechanism;

71. a frame support; 72. a frame locating pin;

8. a main frame limiting mechanism;

81. locking the cylinder; 82. a cylinder bracket; 83. a limit bracket; 84. a support member;

9. and the air path control mechanism.

Detailed Description

Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While the exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.

It is noted that unless otherwise indicated, technical or scientific terms used herein should be given the ordinary meaning as understood by one of ordinary skill in the art to which this application belongs.

Examples

Referring to fig. 1, an auxiliary tool for assembling a vehicle body cover plate is provided in an embodiment of the present invention, and mainly includes a main frame 1 for positioning and disposing above a front-stage vehicle body frame; a hood auxiliary assembly mechanism 5 provided on the main frame 1 for auxiliary mounting of the hood on the front-stage vehicle body frame in a positioning support manner; a first bracket auxiliary assembly mechanism 2, which is arranged on the main frame 1 and is used for auxiliary positioning of the front fender bracket on the front section of the vehicle body frame; the fender profiling detection mechanism 3 is arranged on the main frame 1, is positioned in the direction opposite to the first bracket auxiliary assembly mechanism 2, and can be matched with the extension size of the rear end part of the fender; the second bracket auxiliary assembly mechanism 4 is arranged on the main frame 1, is positioned between the first bracket auxiliary assembly mechanism 2 and the fender profiling detection mechanism 3 and is used for auxiliary positioning of the fender middle bracket on the front section vehicle body frame.

Referring to fig. 1, specifically, the main frame 1 is suspended above the front-end vehicle body frame by using a suspension ring 11, a suspension chain and a suspension rod, and the position of the main frame 1 is positioned and limited by a positioning hole in the front-end vehicle body frame or other components, so that a corresponding mechanism for supporting the main frame 1 can be avoided being arranged on the ground, and the occupied area can be saved. The hood auxiliary assembling mechanism 5 is preferably provided above the main frame 1 so as to facilitate positioning and angling the hood in a correct position by means of positioning and supporting in order to further connect the hood with the hinge structure on the front-stage body frame, and since the hinge structure position for connecting the hood is already formed, it is possible to determine in a correct assembling position when the hood is fittingly mounted on the body frame by the hinge structure, so that it is possible to position the assembling position of the hood as a reference position or detect whether the assembling position of other components is correct.

As a preferred embodiment of the present application, the second bracket auxiliary assembling mechanism 4 is installed at a position near the middle of the main frame 1, specifically, is set according to the assembling position of the in-fender bracket, and is determined by the gap size between the engine cover and the in-fender bracket when the setting position of the second bracket auxiliary assembling mechanism 4 is located, so that the setting position thereof can be accurately located when the second bracket auxiliary assembling mechanism 4 installs the in-fender bracket, and then the in-fender bracket is assembled at the accurate assembling position; the first bracket auxiliary assembly mechanism 2 and the fender profile modeling detection mechanism 3 can position the respective set positions through the set positions determined by the second bracket auxiliary assembly mechanism 4, and particularly the shape and the size of the fender; the front fender bracket is mainly assembled on an accurate assembly position through the first bracket auxiliary assembly mechanism 2, and during the period, the assembly position of the front car lamp is detected through the gap size between the engine cover and the front fender bracket and the front car lamp by taking the positions of the engine cover and the front fender bracket as positioning bases and the deviation size of the assembly position of the front car lamp is obtained because the engine cover and the front fender bracket accurately position the assembly position of the front car lamp; the part of the structure of the fender profiling detection mechanism 3 can profile the formation and thickness of the rear end part of the fender part, so that after the fender profiling detection mechanism 3 positions the accurate assembly position of the rear end part of the fender through the second bracket auxiliary assembly machine, the rear end part of the fender can be simulated for assembly through a fender profiling mode, and then the degree of fit between the front door and the fender is detected through the fender profiling detection mechanism 3 in a mode of measuring the gap size, and the assembly deviation size of the front door is obtained.

The application covers a cover auxiliary assembly mechanism 5 for auxiliary assembly of an engine cover, a second bracket auxiliary assembly mechanism 4 for auxiliary positioning of a bracket in a fender, a first bracket auxiliary assembly mechanism 2 for auxiliary positioning of a front bracket of the fender and a fender profiling detection mechanism 3 for positioning and simulating the assembly state of the fender in a profiling mode; the engine cover which is convenient for determining the accurate assembly position is mainly used as a positioning reference, so that the accurate assembly position of the bracket in the fender is positioned, the set position of the front car lamp is adjusted, the shape and the size of the fender are determined, the accurate assembly position of the front fender bracket and the accurate position of the rear end part of the fender are deduced in sequence based on the assembly position of the bracket in the fender, the set positions of the auxiliary assembly mechanism 2 of the first bracket and the contour detection mechanism 3 of the fender are adjusted, the accurate positioning of the front part, the middle part and the rear part of the fender is further completed, the assembly position deviation of the front car lamp is measured through the clearance fit between the front fender bracket and the engine cover and the front car lamp while the fit relation between the front fender bracket and the engine cover is ensured, the assembly position deviation of the front car lamp is measured through the clearance dimension contrast between the contour detection mechanism 3 of the front car lamp and the front car door, the assembly position deviation of the front car lamp and the front car door is adjusted once, the assembly of the front car lamp with the assembly position deviation is effectively avoided, the assembly of the front car lamp and the front car door is detected, the assembly time of the front car lamp is effectively improved, the assembly of the front car door is effectively detected, the assembly of the front car door is obviously is greatly saved, and the assembly time of the car door is obviously saved, and the assembly is obviously required.

Further, with reference to fig. 1, in an embodiment, the cover auxiliary assembly mechanism 5 includes a cover support assembly and a cover positioning assembly disposed opposite to each other on the main frame 1; the engine cover supporting component is arranged on one side of the main frame 1, which is close to the first bracket auxiliary assembly mechanism 2, and is used for supporting an engine cover; the cover positioning component is arranged on one side of the main frame 1, which is close to the fender profiling detection mechanism 3, and can be matched with a positioning hole formed on the engine cover.

Specifically, in the technical scheme adopted by the invention, a cover supporting component and a cover positioning component are arranged at the top of the main frame 1 to form a cover auxiliary assembly mechanism 5, and the cover supporting component is close to the front side of the main frame 1 and is used for supporting the engine cover so that the engine cover can form an angle suitable for installation on the main frame 1 through supporting; the engine cover positioning assembly is close to the rear side of the main frame 1 and can be matched with symmetrical mounting holes on an engine cover inner plate so as to position the assembly position of the engine cover, so that the engine cover is conveniently connected with a hinge structure on a front section of the vehicle body frame through the supported angle and accurate positioning, and an auxiliary tool for assembling the vehicle body cover plate has the function of assisting in assembling the engine cover.

Further, referring to fig. 1, in the embodiment, the hood support assembly is composed of at least two hood brackets 51 disposed at intervals, and each hood bracket 51 extends upward of the main frame 1 to be able to support the hood; the cover positioning assembly is composed of at least two cover positioning pins 52 which are arranged at intervals, and each cover positioning pin 52 can correspond to the symmetrically arranged positioning holes on the engine cover one by one.

Specifically, in the technical scheme adopted by the invention, the engine cover supporting assembly can be composed of a plurality of spaced and symmetrical engine cover brackets 51 so as to stably support the engine cover above the main frame 1, and in order to facilitate the assembly of the engine cover, the number of the engine cover brackets 51 is preferably two and symmetrically arranged at the front side of the main frame 1; preferably, the cover positioning assembly is composed of two cover positioning pins 52, and it should be noted that the number of the cover positioning pins 52 can be set by referring to the mounting holes on the inner plate of the cover, and the assembling position of the cover can be repeatedly determined, so that the subsequent hinge structure connection is smoother; thereby completing the auxiliary assembly of the engine cover through the cooperation of the cover brackets 51 and the cover positioning pins 52 so as to position the set position of the second bracket auxiliary assembly mechanism 4 and the assembly position of the bracket in the fender.

Further, referring to fig. 2, in an embodiment, the second bracket auxiliary assembling mechanism 4 includes a bracket clamping assembly and a bracket positioning assembly symmetrically disposed on the main frame 1; the bracket clamping assembly comprises a second active clamping part 41 and a second passive clamping part 42 corresponding to the second active clamping part 41, and is used for fixing the middle fender bracket; the bracket positioning assembly includes a second primary positioning pin 43 and a second secondary positioning pin 44.

Specifically, in the technical scheme adopted by the invention, the bracket clamping assemblies and the bracket positioning assemblies are symmetrically arranged on the main frame 1 so as to meet the requirement of simultaneously installing the middle fender bracket on two sides of the front section of the vehicle body frame. The bracket clamping assembly is used for fixing the position of the middle bracket, and the bracket positioning assembly limits the middle bracket of the fender on the bracket clamping assembly through the mounting hole on the bracket; the bracket clamping assembly comprises a second active clamping part 41 and a second passive clamping part 42 which are arranged in a state of opposite clamping directions, in particular, the second active clamping part 41 is formed by clamping heads of the quick clamps, namely, two quick clamps are symmetrically and fixedly arranged on the main frame 1, the second passive clamping part 42 is arranged as a reference block fixedly arranged on the main frame 1, and in use, the bracket in the fender is pressed and fixed towards the second passive clamping part 42 through the second active clamping part 41. The second active positioning and second auxiliary positioning pin 44 is used to insert into the mounting hole of the bracket in the fender so that the bracket in the fender is fixed on the second bracket auxiliary assembly mechanism 4 in a limited manner, so as to ensure that the clamping position of the bracket in the fender can be kept unchanged when the second bracket auxiliary assembly mechanism 4 is adjusted.

It should be noted that the second bracket auxiliary assembling mechanism 4 is completed by adding or subtracting assembling gaskets when the adjustment is needed, and the adopted manner belongs to the prior art, so that the detailed description is omitted here.

Further, referring to fig. 3, in the embodiment, the first bracket auxiliary assembling mechanism 2 includes a fixed bracket 22 symmetrically disposed under the front side of the main frame 1 via a first link 21, and a movable bracket 23 mounted on the fixed bracket 22 through a first driving part 24; the movable bracket 23 is provided with a bracket positioning and clamping assembly, so that the movable bracket 23 is driven by the first driving part 24 to drive the bracket positioning and clamping assembly to move towards the installation position of the front fender bracket.

Specifically, in the technical scheme adopted by the invention, part of components which can assist in positioning the front fender bracket in the first bracket auxiliary assembly mechanism 2 are extended to the assembly position where the front fender bracket is assembled through the first connecting piece 21; the fixed support 22 is used for installing a first driving component 24 to drive the movable support 23 to be close to or far from the fixed support 22, the first driving component 24 is preferably a driving cylinder with a single piston rod, so that a cylinder body is installed on the fixed support 22, the piston rod of the cylinder is connected with the movable support 23, other driving components can be selected, and stable linear reciprocating motion can be realized; the movable bracket 23 is used for installing the bracket positioning and clamping assembly so as to be capable of being driven to be close to the assembling position of the front fender bracket by the first driving part 24 when the front fender bracket is positioned and clamped.

Further, referring to fig. 3, in the embodiment, the bracket positioning and clamping assembly includes at least two first passive clamping portions 26 oppositely disposed on the movable bracket 23 and first passive clamping portions 26 corresponding to the first passive clamping portions 26; the two first passive clamping portions 26 are respectively provided with a first main positioning pin 27 and a first auxiliary positioning pin 28.

Specifically, in the technical scheme adopted by the invention, in order to facilitate operation, the bracket positioning and clamping assembly consists of two first passive clamping parts 26 which are oppositely arranged and first passive clamping parts 26 corresponding to the first passive clamping parts 26, which are all arranged on the movable bracket 23, but the invention is not limited to the arrangement number of the first passive clamping parts 26 and the first passive clamping parts 26 in the application, and the invention can ensure that the front fender bracket can be stably fixed on the bracket positioning and clamping assembly in a clamping manner according to the reasonable arrangement number of the front fender bracket according to the size of the front fender bracket; and a first main locating pin 27 and a first auxiliary locating pin 28 are arranged on two first passive clamping parts 26 and are used for being inserted into the mounting holes of the front fender bracket, so that the bracket locating and clamping assembly has a further limiting effect in the clamping process.

Further, referring to fig. 4, in the embodiment, the fender profile detection mechanism 3 includes an adjusting assembly symmetrically disposed at the rear side of the main frame 1 via a second connecting member 31 and a fender rear end profile assembly mounted on the adjusting assembly; the adjusting assembly comprises a first sliding table structure 32, a second driving part 33 for driving the first sliding table structure 32 to linearly reciprocate, and a third driving part 34 arranged on the first sliding table structure 32; the driving direction of the second driving part 33 and the sliding direction of the first sliding table structure 32 are both arranged towards the first direction and are on the same straight line, and the second driving part 33 drives the first sliding table structure 32 to drive the third driving part 34 to linearly reciprocate along the first direction; the third driving part 34 is provided with a fender rear end profiling assembly; the fender rear end profile assembly is linearly reciprocable in a second direction by actuation of the third drive member 34 to provide for automated two-dimensional adjustment of the adjustment assembly.

Specifically, in the technical scheme adopted by the invention, the adjusting component and the fender rear end profiling component are mounted on the rear side of the main frame 1 through the second connecting piece 31 so as to adapt to the assembly position of the rear end part of the fender in a part of larger size, and the accurate adaptation size is adjusted through the adjusting component.

The adjusting assembly mainly comprises a first sliding table structure 32, and a second driving component 33 and a third driving component 34 with different driving directions, specifically, the first sliding table structure 32 and the second driving component 33 are all arranged along a first direction, and the driving direction of the second driving component 33 and the sliding direction of the first sliding table structure 32 are arranged on the same straight line for connection, so that the first sliding table structure 32 can be driven to slide through the second driving component 33, wherein the explanation of the first direction is as follows: the front-rear direction of the front section body frame is the direction that the rear end of the fender approaches or is far away from the front door along the side surface of the front section body frame; the third driving component 34 is mounted on the first sliding table structure 32, and the second driving component 33 drives the first sliding table structure 32 to drive the third driving component 34 to perform linear reciprocating motion along the first direction. The fender rear end profile assembly is mounted on the third drive member 34 so as to be able to approach or depart from the front-stage body frame, that is, in a second direction toward the left and right sides of the front-stage body frame, so that two-dimensional adjustment is made on the adjustment assembly.

It should be noted that the present application is not limited to setting the first sliding table structure 32 in the fender profiling detection mechanism 3, but may also select a screw nut kinematic pair, specifically adopt a ball nut and a screw to realize the linear reciprocating motion thereof, and may also adopt other linear reciprocating motions capable of completing stability; while the second driving part 33 and the third driving part 34 may use driving cylinders or motors to drive the first sliding table structure 32 or the screw nut kinematic pair, the combination of the sliding table structure and the driving cylinders is preferred for the convenience of assembly.

Further, referring to fig. 4, in the embodiment, the rear end fender assembly is formed of at least two fender contour blocks 35, and each fender contour block 35 is mounted on the third driving member 34 at intervals along the third direction.

Specifically, in the technical scheme adopted by the invention, the fender rear end profiling assembly at least comprises two fender profiling blocks 35, each fender profiling block 35 is arranged on the driving part at intervals along the third direction and is used for detecting the gap size between the front vehicle door and the fender profiling blocks 35, the fender profiling blocks 35 are block-shaped bodies formed by imitating the structure of the rear end of the fender as the name, so that the gap size measurement between the rear end of the fender and the front vehicle door can be replaced, and the fender profiling blocks 35 are 1:1 re-carved on the rear end of the fender part, so that the rear ends of the fender and the front vehicle door can be compared and detected, and therefore, whether the front vehicle exceeds the matching relation between the front vehicle door and the fender in the second direction or not can be obtained, and whether the front vehicle exceeds the thickness direction of the fender in the thickness direction of the front vehicle can be understood, so as to adjust. The purpose of the fender profiling blocks 35 is to locate whether the front door has rotation deviation or not, so that the rotation deviation of the front door can be eliminated or adjusted; and the explanation for the third direction is: the vertical direction of the front body frame is also the extending direction of the front door near the side surface of the fender.

Further, referring to fig. 5, in the embodiment, the device further includes a midline positioning mechanism 6, which is disposed below the main frame 1; the midline positioning mechanism 6 comprises a main frame positioning component which can be adjusted along the second direction and a linkage component connected with the main frame positioning component; the main frame positioning assembly can be symmetrically adjusted on the main frame 1 along the second direction through the linkage assembly.

Specifically, in the technical scheme adopted by the invention, the center line positioning mechanism 6 is used for ensuring that the main frame 1 is positioned on the center line of the front section vehicle body frame, the main frame positioning assembly is connected to the positioning holes of the symmetrical components in the front section vehicle body frame, and in order to adapt to the symmetrical positioning holes with different positions, the main frame positioning assembly is subjected to symmetrical linkage adjustment through the linkage assembly, so that the main frame 1 can be installed on the center line of the front section vehicle body frame through adjusting and connecting the corresponding symmetrical positioning holes.

Further, referring to fig. 5, in an embodiment, the main frame positioning assembly includes two main frame adjusting positioning pins 61 mounted under the main frame 1 by a second sliding table structure 62 sliding in a second direction, and adjusted to be able to fit the positioning holes on the body damper; the linkage assembly comprises a switching rotating piece 63 rotatably arranged in the middle of the lower part of the main frame 1 and a transmission piece 64 respectively connected between the switching rotating piece 63 and the two second sliding table structures 62; the first ends of the transmission members 64 are respectively connected with the two end portions of the switching rotation member 63, and the second ends of the two transmission members 64 are respectively connected with the corresponding second sliding table structures 62.

Specifically, in the technical scheme adopted by the invention, two main frame adjusting positioning pins 61 are slidably mounted on the second sliding table structures 62 respectively, the sliding directions of the two second sliding table structures 62 are set to be second directions, so that positioning holes on dampers on a vehicle body can be matched through adjusting bodies, and in order to facilitate symmetric adjustment of the two main frame adjusting positioning pins 61, a linkage assembly is arranged between the two second sliding table structures 62, and specifically comprises a transfer rotating member 63 positioned in the middle of the lower part of the main frame 1, the transfer rotating member 63 is rotatably mounted on the main frame 1, two end parts of the transfer rotating member 63 are connected with transmission members 64, a first end of each transmission member 64 is connected with corresponding end parts on the transfer rotating member 63, and a second end of each transmission member 64 is connected with a sliding block of the corresponding second sliding table structure 62 respectively, so that when one of the main frame adjusting positioning pins 61 is adjusted, the other main frame adjusting positioning pin 61 can also move relatively, and the two main frame adjusting positioning pins 61 are ensured to be in a symmetric state.

Further, referring to fig. 1, in the embodiment, the device further includes a main frame supporting mechanism 7, which is disposed on the front side of the main frame 1; the main frame supporting mechanism 7 includes at least two frame supporting members 71 fixedly connected to the main frame 1, and frame positioning pins 72 respectively mounted on the frame supporting members 71; each frame support 71 can be supported on the tank rail and each frame alignment pin 72 can be inserted into a corresponding mounting hole on the tank rail.

Specifically, in the technical solution adopted by the present invention, a main frame supporting mechanism 7 is provided on the front side (i.e., the direction of the side close to the first bracket auxiliary assembling mechanism 2) of the main frame 1, and the main frame supporting mechanism 7 is formed by providing at least two frame supporting members 71 fixedly connected to the main frame 1, and the present application preferably provides two frame supporting members 71, wherein the frame supporting members 71 are formed into a bracket structure with a supporting surface at the end for supporting on a tank cross beam in a vehicle body frame, and a frame positioning pin 72 is further provided on the end of the frame supporting member 71 for inserting into a positioning hole on the tank cross beam so as to be able to further position the main frame 1.

Further, referring to fig. 6 and fig. 7, in the embodiment, the device further includes a main frame limiting mechanism 8, which is symmetrically disposed below the main frame 1; the main frame limiting mechanism 8 comprises a limiting clamping assembly and a limiting supporting assembly; the limiting clamping assembly and the limiting supporting assembly respectively limit the displacement of the main frame 1 to the opposite direction along the third direction.

Specifically, in the technical scheme adopted by the invention, the main frame limiting mechanism 8 is used for limiting the displacement of the main frame 1 in the third direction so as to ensure that the main frame 1 is more stable in the auxiliary positioning process and is not easy to generate displacement outside the control range, and the main frame limiting mechanism 8 is symmetrically arranged below the main frame 1 by referring to the structure of the front-section vehicle body frame and mainly comprises a limiting clamping assembly and a limiting supporting assembly; the limiting and clamping assembly limits the upward displacement of the main frame 1 in a locking manner, and the limiting and supporting assembly limits the downward position of the main frame 1 in an abutting supporting manner, so that the influence on the positioning accuracy caused by the displacement of the main frame 1 along the third direction can be avoided.

Further, referring to fig. 6 and 7, in the embodiment, the limit clamping assembly includes a locking cylinder 81 installed below the main frame 1 in a third direction by a cylinder bracket 82 and a limit bracket 83 installed on the locking cylinder 81; the spacing bearing assembly comprises at least two support members 84 extending in a third direction towards the underside of the main frame 1.

Specifically, in the technical scheme adopted by the invention, the locking cylinder 81 is mounted on the main frame 1 through the cylinder bracket 82, and the limiting bracket 83 is arranged on the locking cylinder 81, so that the locking cylinder 81 is pulled back to drive the western bracket to act on the front section of the vehicle body frame so as to limit the upward displacement of the main frame 1, and in order to further avoid the downward displacement of the main frame 1, two supporting parts 84 are arranged on the main frame 1, and the supporting parts 84 are of straight rod structures extending towards the lower side of the main frame 1, so that the main frame 1 is prevented from being displaced along a third direction due to the influence of gravity or other external forces through the straight rod structures and the stability of the locking cylinder 81.

It should be noted that the present application is also provided with a power source conveyance control mechanism of each driving member, and since each driving member in the present application is preferably a driving cylinder, the power source conveyance control mechanism is also preferably the air path control conveyance mechanism 9.

According to the above disclosure, in order to explain the main functions of the auxiliary tool for assembling a vehicle body cover plate provided in the present application, the following description is given to the operation steps thereof:

s1, auxiliary tools for assembling a car body cover plate are required to be subjected to two times of center line positioning through each main frame adjusting and positioning pin 61 and each frame positioning pin 72, so that the main frame 1 is ensured to be positioned at the center line position of a front section car body frame, and if the positions of the main frame adjusting and positioning pins 61 and the positions of positioning holes of a car body damper are not matched, unified adjustment can be performed through the cooperation of a linkage assembly and a second sliding table structure 62;

s2, supporting the engine cover on the engine cover bracket 51, and enabling the engine cover positioning pin 52 to be inserted into a mounting hole on an engine cover inner plate so as to position a supporting position of the engine cover, which is convenient for connecting with a hinge structure, and completing assembly of the engine cover;

s3, respectively and sequentially adjusting the set positions of the second bracket auxiliary assembly mechanism 4, the first bracket auxiliary assembly mechanism 2 and the fender profile detection mechanism 3 through the gap size between the second bracket auxiliary assembly mechanism and the engine cover, ensuring that the middle fender bracket, the front fender bracket and the fender profile block 35 are at accurate assembly positions, and completing the assembly of the middle fender bracket and the front fender bracket;

S4, detecting the assembly position deviation of the front car lamp through the gap sizes between the front fender bracket and the front car lamp and between the engine cover and the front car lamp;

detecting whether the fitting degree between the front door and the fender and the assembly of the front door have deviation or not through the size and the thickness of a gap between the fender profiling block 35 and the front door;

s5, adjusting the assembly deviation values of the front car lamp and the front car door by referring to the assembly deviation values of the front car lamp and the front car door after the gap size is finished, so that the engine cover, the fender, the front car lamp and the front car door are guaranteed to have a matching relation which accords with the design standard.

According to the above-described operation steps, the position of the main frame adjustment positioning pin 61 can be adjusted by the center line positioning mechanism 6 so as to correspond to the damper upper mounting hole in the vehicle frame, so that the center line position can be ensured when the main frame 1 is arranged on the front end vehicle body frame, and the hood can be accurately positioned for auxiliary mounting by the hood auxiliary mounting mechanism 5; the assembly position of the bracket in the fender can be positioned by the gap size after the assembly position of the engine cover is determined, so that the set position of the second bracket auxiliary assembly mechanism 4 is adjusted, the assembly positions of the front fender bracket and the fender profiling block 35 can be determined by further referring to the assembly position of the bracket in the fender, and then the set positions of the first bracket auxiliary assembly mechanism 2 and the fender profiling detection mechanism are adjusted, so that the assembly position deviation size of the front automobile lamp can be measured by the gap size between the engine cover and the front fender bracket and the front automobile lamp, and the assembly position deviation size of the front automobile door can be measured by the gap size between the fender profiling block 35 and the front automobile door; at the same time, whether the second direction assembly dimension of the front door is accurate can also be measured through the thickness of the fender profiling block 35.

It should be noted that, in the description of the present specification, the azimuth or positional relationship indicated by the terms "upper", "lower", etc. are based on the azimuth or positional relationship shown in the drawings, and are merely for convenience of description of the present application and simplification of the description, and are not indicative or implying that the apparatus or element in question must have a specific azimuth, be configured and operated in a specific azimuth, and therefore should not be construed as limiting the present application; the terms "coupled," "mounted," "secured," and the like are to be construed broadly, and may be fixedly coupled, detachably coupled, or integrally connected, for example; can be directly connected or indirectly connected through an intermediate medium. The specific meaning of the terms in this application will be understood by those of ordinary skill in the art as the case may be.

In the description of the present specification, the terms "one embodiment," "some embodiments," "particular embodiments," and the like, mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present application. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The foregoing is merely specific embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art can easily think about changes or substitutions within the technical scope of the present application, and the changes or substitutions are intended to be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims (13)

1. An auxiliary fixture for assembling a vehicle body cover plate, comprising:

a main frame (1) for positioning and disposing above the front-stage vehicle body frame;

a bonnet auxiliary assembly mechanism (5) which is arranged on the main frame (1) and is used for assisting in installing a bonnet on the front section vehicle body frame in a positioning and supporting mode;

the first bracket auxiliary assembly mechanism (2) is arranged on the main frame (1) and is used for auxiliary positioning of the front fender bracket on the front section vehicle body frame;

the fender profiling detection mechanism (3) is arranged on the main frame (1), is positioned in the opposite side direction of the first bracket auxiliary assembly mechanism (2), and can be matched with the extension size of the rear end part of the fender;

the second bracket auxiliary assembly mechanism (4) is arranged on the main frame (1), is positioned between the first bracket auxiliary assembly mechanism (2) and the fender profiling detection mechanism (3) and is used for auxiliary positioning of a fender middle bracket on the front section vehicle body frame;

The second bracket auxiliary assembly mechanism (4) can position the set position of the second bracket auxiliary assembly mechanism through the gap between the second bracket auxiliary assembly mechanism and the engine cover, so that the set positions of the first bracket auxiliary assembly mechanism (2) and the fender profile detection mechanism (3) can be respectively positioned through the gap between the second bracket auxiliary assembly mechanism and the second bracket auxiliary assembly mechanism (4).

2. The auxiliary tool for assembling a vehicle body cover plate according to claim 1, wherein,

the auxiliary cover assembly mechanism (5) comprises a cover supporting component and a cover positioning component which are oppositely arranged on the main frame (1);

the engine cover supporting component is arranged on one side of the main frame (1) close to the first bracket auxiliary assembly mechanism (2) and is used for supporting the engine cover;

the bonnet positioning assembly is arranged on one side, close to the fender profiling detection mechanism (3), of the main frame (1), and can be matched with a positioning hole formed in the bonnet.

3. The auxiliary tool for assembling a vehicle body cover plate according to claim 2, wherein,

the engine cover supporting assembly is composed of at least two engine cover brackets (51) which are arranged at intervals, and each engine cover bracket (51) extends to the upper part of the main frame (1) so as to be capable of supporting the engine cover;

The engine cover positioning assembly is composed of at least two engine cover positioning pins (52) which are arranged at intervals, and each engine cover positioning pin (52) can correspond to the symmetrically arranged positioning holes on the engine cover one by one.

4. The auxiliary tool for assembling a vehicle body cover plate according to claim 1 or 2, wherein,

the second bracket auxiliary assembly mechanism (4) comprises bracket clamping assemblies and bracket positioning assemblies which are symmetrically arranged on the main frame (1);

the bracket clamping assembly comprises a second active clamping part (41) and a second passive clamping part (42) corresponding to the second active clamping part (41) and is used for fixing the middle fender bracket;

the bracket positioning assembly includes a second primary positioning pin and a second secondary positioning pin (44).

5. The auxiliary tool for assembling a vehicle body cover plate according to claim 4, wherein,

the first support auxiliary assembly mechanism (2) comprises a fixed support (22) symmetrically arranged below the front side of the main frame (1) through a first connecting piece (21) and a movable support (23) arranged on the fixed support (22) through a first driving part (24);

the movable support (23) is provided with a support positioning and clamping assembly, so that the movable support (23) is driven by the first driving component (24) to drive the support positioning and clamping assembly to move towards the installation position of the front fender support.

6. The auxiliary tool for assembling a vehicle body cover plate according to claim 5, wherein,

the bracket positioning and clamping assembly at least comprises two first active clamping parts (25) which are oppositely arranged on the movable bracket (23) and first passive clamping parts (26) corresponding to the first active clamping parts (25);

wherein, a first main locating pin (27) and a first auxiliary locating pin (28) are respectively arranged on the two first passive clamping parts (26).

7. The auxiliary tool for assembling a vehicle body cover plate according to claim 4, wherein,

the fender profiling detection mechanism (3) comprises an adjusting component and a fender rear end profiling component, wherein the adjusting component is symmetrically arranged at the rear side of the main frame (1) through a second connecting piece (31), and the fender rear end profiling component is arranged on the adjusting component;

the adjusting assembly comprises a first sliding table structure (32), a second driving component (33) for driving the first sliding table structure (32) to linearly reciprocate, and a third driving component (34) arranged on the first sliding table structure (32);

the driving direction of the second driving component (33) and the sliding direction of the first sliding table structure (32) are both arranged towards the first direction and are positioned on the same straight line, and the second driving component (33) drives the first sliding table structure (32) to drive the third driving component (34) to linearly reciprocate along the first direction;

The third driving part (34) is provided with the fender rear end profiling assembly;

the fender rear end profiling assembly can linearly reciprocate along a second direction by being driven by the third driving component (34), so that automatic two-dimensional adjustment is formed on the adjustment assembly.

8. The auxiliary tool for assembling a vehicle body cover plate according to claim 7, wherein,

the rear end profile modeling assembly of the fender is composed of at least two fender profile modeling blocks (35), and each fender profile modeling block (35) is installed on the third driving part (34) at intervals along a third direction.

9. The auxiliary tool for assembling a vehicle body cover plate according to claim 1, further comprising

A midline positioning mechanism (6) arranged below the main frame (1);

the midline positioning mechanism (6) comprises a main frame positioning component which can be adjusted along a second direction and a linkage component connected with the main frame positioning component;

the main frame positioning assembly can be symmetrically adjusted on the main frame (1) along a second direction through the linkage assembly.

10. The auxiliary tool for assembling a vehicle body cover plate according to claim 9, wherein,

the main frame positioning assembly comprises two main frame adjusting positioning pins (61) which are arranged below the main frame (1) through a second sliding table structure (62) sliding along a second direction, and the main frame adjusting positioning pins can be adjusted to be matched with positioning holes on the automobile body damper;

The linkage assembly comprises a switching rotating piece (63) rotatably arranged in the middle of the lower part of the main frame (1), and a transmission piece (64) respectively connected between the switching rotating piece (63) and the two second sliding table structures (62);

the first ends of the two transmission pieces (64) are respectively connected with the two end parts of the switching rotating piece (63), and the second ends of the two transmission pieces (64) are respectively connected with the corresponding second sliding table structures (62).

11. The auxiliary tool for assembling a vehicle body cover plate according to claim 9, further comprising:

a main frame support mechanism (7) provided on the front side of the main frame (1);

the main frame supporting mechanism (7) at least comprises two frame supporting pieces (71) fixedly connected with the main frame (1) and frame positioning pins (72) respectively arranged on the frame supporting pieces (71); each frame support (71) is supportable on a tank rail, and each frame locating pin (72) is insertable into a corresponding mounting hole on the tank rail.

12. The auxiliary tool for assembling a vehicle body cover plate according to claim 11, further comprising:

the main frame limiting mechanisms (8) are symmetrically arranged below the main frame (1);

The main frame limiting mechanism (8) comprises a limiting clamping assembly and a limiting supporting assembly;

the limiting clamping assembly and the limiting supporting assembly limit the displacement of the main frame (1) to the opposite direction along the third direction respectively.

13. The auxiliary tool for assembling a vehicle body cover plate according to claim 12, wherein,

the limiting and clamping assembly comprises a locking air cylinder (81) arranged below the main frame (1) along a third direction through an air cylinder bracket (82) and a limiting bracket (83) arranged on the locking air cylinder (81);

the limit bearing assembly comprises at least two support parts (84) extending towards the lower part of the main frame (1) along a third direction.