CN216265668U - Assembling jig - Google Patents

Abstract

The application relates to an assembly jig which comprises a base, a main speed reducer supporting structure and two first supporting structures, wherein the base is provided with a supporting surface; the main speed reducer supporting structure is arranged on the supporting surface and used for supporting the main speed reducer; the two first supporting structures are arranged on the supporting surface and are respectively positioned on two opposite sides of the main speed reducer supporting structure, and the first supporting structures are used for supporting the suspension assembly; the first support structure is slidably coupled to the support surface such that the first support structure can slide in a first direction to move toward or away from the final drive support structure. Above-mentioned assembly jig through setting up two first bearing structure and holding surface sliding connection, makes through the distance that changes between first bearing structure and the main reducer, just can satisfy the position condition when main reducer and suspension subassembly assemble. Because the main speed reducer and the suspension assembly are supported in the assembling process, the phenomenon that positioning is difficult due to relative movement between workpieces is avoided, and the assembling efficiency is improved.

Description

Assembling jig

Technical Field

The application relates to the technical field of automobile manufacturing, in particular to an assembling jig.

Background

The final drive is an important component of the vehicle driveline and functions to reduce rotational speed and increase torque. The final drive unit needs to be assembled with some of the components of the suspension system, such as the brackets and control arms, prior to assembly to the frame assembly. The support is used for fixedly connecting the main speed reducer with the frame, and the control arm is connected with the support. The control arm is a guide and force transfer element in the suspension system for transferring the force acting on the wheel to the body and causing the wheel to follow a certain trajectory.

In the related art, the main speed reducer is connected with the parts of the suspension system by adopting a manual positioning matching mode, so that the problem of low assembly efficiency exists.

SUMMERY OF THE UTILITY MODEL

Therefore, it is necessary to provide an assembly jig for improving assembly efficiency in order to solve the problem of low assembly efficiency of the main reducer and the suspension assembly.

According to an aspect of the application, provide an assembly tool, be applied to final drive and suspension subassembly, the suspension subassembly includes support, last control arm and lower control arm, the assembly tool includes:

a base having a support surface;

the main speed reducer supporting structure is arranged on the supporting surface and used for supporting the main speed reducer;

the two first supporting structures are arranged on the supporting surface and are respectively positioned on two opposite sides of the main speed reducer supporting structure, and the first supporting structures are used for supporting the suspension assembly;

the first support structure is slidably coupled to the support surface such that the first support structure is slidable in a first direction to move toward or away from the final drive support structure.

Above-mentioned assembly jig sets up main reducer bearing structure in order to support main reducer, sets up first bearing structure in order to support the suspension subassembly that is used for being connected with main reducer. Through setting up two first bearing structure and holding surface sliding connection, make through the distance that changes between first bearing structure and the final drive, position condition when just can satisfy final drive and suspension subassembly assembly. In the actual use process, when the distance between the first supporting structure and the main speed reducer supporting structure is far, the suspension assembly and the main speed reducer are respectively placed on the two supporting structures, then the first supporting structure is controlled to slide along the first direction to be close to the main speed reducer supporting structure, and when the first supporting structure slides to a proper position, the suspension assembly and the main speed reducer are assembled. Because the main speed reducer and the suspension assembly are supported in the assembling process, the phenomenon that positioning is difficult due to relative movement between workpieces is avoided, and therefore the assembling efficiency is improved.

In one embodiment, the first support structure includes:

the first supporting plate is connected with the supporting surface in a sliding mode;

the support supporting structure is arranged on one side, close to the main speed reducer supporting structure, of the first supporting plate along the first direction, and is used for supporting the support and the upper control arm;

and the lower control arm positioning structure is arranged on the first supporting plate along the first direction away from one side of the main speed reducer supporting structure, and is used for supporting and positioning the lower control arm.

In one embodiment, the stand support structure comprises a support;

one end of the supporting piece is connected with the first supporting plate, and the other end of the supporting piece is provided with a connecting surface which is used for being connected with the support in an adaptive mode.

In one embodiment, the lower control arm positioning structure comprises:

the positioning pin is used for being fixedly connected with the lower control arm;

the supporting seat is arranged between the positioning pin and the support supporting structure and used for supporting one end, far away from the positioning pin, of the lower control arm.

In one embodiment, the assembling jig further comprises a first assembling structure arranged on the supporting surface, and the first assembling structure is used for assembling the bracket and the upper control arm;

the first assembling structure comprises a second supporting plate and a positioning piece, the second supporting plate is connected with the supporting surface, and the positioning piece is arranged on the second supporting plate and used for fixing the support on the second supporting plate.

In one embodiment, the assembling jig further comprises a main speed reducer positioning structure fixedly connected with the main speed reducer;

the main reducer positioning structure is connected with the supporting surface in a sliding mode, so that the main reducer positioning structure can slide along the direction perpendicular to the first direction to be close to or far away from the main reducer supporting structure.

In one embodiment, the final drive positioning structure includes:

the flange positioning piece is used for being connected with the main speed reducer;

the sliding table is connected with the supporting surface in a sliding mode, and the flange positioning piece is arranged on one side, far away from the supporting surface, of the sliding table.

In one embodiment, the main reducer positioning structure further comprises a position adjusting unit;

the position adjusting unit comprises a plurality of position adjusting pieces, the position adjusting pieces are in threaded connection with one another so as to respectively adjust the relative positions of each position adjusting piece and the sliding table, and the flange positioning piece is connected with the sliding table through any one of the position adjusting pieces;

the position adjusting unit further includes a spacer provided between the two position adjusting members connected to each other.

In one embodiment, the final drive support structure includes a first support post;

one end of the first supporting column, which is far away from the supporting surface, is provided with a clearance hole.

In one embodiment, the assembling jig further includes:

and the traveling mechanism is connected to the surface of the base opposite to the supporting surface.

Drawings

Fig. 1 is a schematic structural diagram of an assembly fixture according to an embodiment of the present application;

FIG. 2 is a schematic structural view of a first support structure, a first guide structure and a first positioning structure in the embodiment of FIG. 1;

FIG. 3 is a schematic structural view of a first mounting structure in the embodiment of FIG. 1;

FIG. 4 is a schematic structural diagram of a final drive support structure according to the embodiment of FIG. 1;

FIG. 5 is a schematic structural view of a final drive positioning structure and a second positioning structure of the embodiment shown in FIG. 1;

FIG. 6 is a top view of the final drive positioning structure and the second guide structure of the embodiment shown in FIG. 1.

In the figure: 10. a base; 20. a main reducer support structure; 22. a first support column; 24. a second support column; 30. a first support structure; 32. a first support plate; 34. a support structure; 340. a support member; 36. a lower control arm positioning structure; 360. positioning pins; 362. a supporting seat; 40. a first guide structure; 42. a first guide rail; 44. a first stopper; 50. a first positioning structure; 52. a first positioning pin; 54. a first positioning block; 56. a second positioning block; 60. a first assembly structure; 62. a second support plate; 64. a positioning member; 70. a main reducer positioning structure; 72. a flange positioning member; 74. a sliding table; 76. a position adjustment unit; 80. a second guide structure; 82. a second guide rail; 84. a second limiting block; 90. a second positioning structure; 92. a second positioning pin; 100. a traveling mechanism.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present application more comprehensible, embodiments accompanying the present application are described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. This application is capable of embodiments in many different forms than those described herein and that modifications may be made by one skilled in the art without departing from the spirit and scope of the application and it is therefore not intended to be limited to the specific embodiments disclosed below.

In the description of the present application, it is to be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present application and for simplicity in description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the present application.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present application, "plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In this application, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can include, for example, fixed connections, removable connections, or integral parts; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through intervening media. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.

Fig. 1 is a schematic structural diagram of an assembly fixture according to an embodiment of the present application.

Referring to fig. 1, an assembly fixture provided in an embodiment of the present application includes a base 10, a main reducer support structure 20, and two first support structures 30.

The base 10 has a support surface on which a final drive support structure 20 is provided, the final drive support structure 20 being used to support the final drive. The two first support structures 30 are disposed on the supporting surface and located on two opposite sides of the main reducer support structure 20, respectively, and the first support structures 30 are used for supporting the suspension assembly. The first support structure 30 is slidably coupled to the support surface such that the first support structure 30 can slide in a first direction to move toward or away from the final drive support structure 20.

The assembly jig is used for supporting the main speed reducer and the suspension assembly respectively by arranging the main speed reducer supporting structure 20 and the first supporting structure 30 on the supporting surface. By arranging the first support structure 30 in sliding connection with the support surface, the relative position of the first support structure 30 and the main reducer support structure 20 can be controlled during assembly to meet the requirements of assembly. Specifically, in actual use, the first support structure 30 is first moved away from the final drive support structure 20, at which time the final drive is placed on the final drive support structure 20 and the suspension assembly is placed on the first support structure 30. The first support structure 30 is then slid in a first direction to approach the final drive support structure 20, and the suspension assembly is assembled with the final drive assembly while the first support structure 30 is in a position to enable connection of the final drive to the suspension assembly. Because the suspension assembly and the main speed reducer are both supported in the assembling process, the assembling and positioning difficulties caused by the relative motion between the suspension assembly and the main speed reducer are reduced, and the assembling efficiency and the assembling precision are improved.

It should be noted that when the final drive unit is placed on the final drive unit support structure 20, the first direction is a rotation axis direction of the output torque of the final drive unit, that is, when the final drive unit and the suspension assembly are assembled to the frame, the first direction is a direction parallel to the axle shaft of the rear axle.

It will be appreciated that the final drive support structure 20 and the first support structure 30 are configured to mate with the final drive and suspension assemblies, respectively, and to enable the final drive and suspension assemblies to be connected to be aligned with one another. For example, the final drive support structure 20 is sized to match the size of the final drive, and the first support structure 30 is sized to match the size of the suspension assembly.

Fig. 2 is a schematic structural diagram of the first supporting structure, the first guiding structure and the first positioning structure in the embodiment shown in fig. 1.

In some embodiments, as shown in fig. 1 and 2, the first support structure 30 includes a first support plate 32, a stent support structure 34, and a lower control arm positioning structure 36. The first support plate 32 is slidably connected to the support surface. A bracket support structure 34 is provided on the first support plate 32 on a side thereof adjacent to the final drive support structure 20 (see fig. 1) in the first direction, the bracket support structure 34 serving to support the bracket and the upper control arm. A lower control arm positioning structure 36 is disposed on the first support plate 32 on a side away from the final drive support structure 20 in the first direction, the lower control arm positioning structure 36 being configured to support and position a lower control arm. In this manner, by positioning the first support plate 32, the support structure 34 and the lower control arm positioning structure 36 are coupled to the first support plate 32 to effect relative movement with the support surface. In addition, it should be noted that the final drive unit and the lower control arm are connected to opposite sides of the bracket, respectively, and therefore, by disposing the bracket supporting structure 34 and the lower control arm positioning structure 36 on opposite sides of the first supporting plate 32 along the first direction, one side of the bracket for connecting with the final drive unit is made to be close to the final drive unit supporting structure 20, and the other side of the bracket for connecting with the lower control arm.

Optionally, as shown in fig. 2, the assembling jig further includes a first guiding structure 40 disposed on the supporting surface, and the first guiding structure 40 is slidably connected to the first supporting plate 32. The first guiding structure 40 includes at least one first guiding rail 42 and at least two first stoppers 44, and the first supporting plate 32 is slidably connected to the first guiding rail 42. The longitudinal extending direction of the first guide rail 42 is parallel to the first direction, and the first stoppers 44 are respectively disposed at two opposite ends of the first guide rail 42 in the extending direction to prevent the first support plate 32 from being separated from the first guide rail 42.

In one embodiment, the first support structure 30 further comprises a slider disposed on a side of the first support plate 32 adjacent to the support surface, and the first support plate 32 is slidably connected to the first guide rail 42 via the slider.

In some embodiments, as shown in fig. 2, the assembly fixture further includes a first positioning structure 50 for positioning the first support structure 30. The positioning structure includes a first positioning pin 52, a first positioning block 54 and a second positioning block 56, and the first support plate 32 is provided with a through hole for the first positioning pin 52 to pass through. The first positioning block 54 and the second positioning block 56 are disposed on the first supporting surface and slidably connected to the first supporting plate 32. Specifically, a line connecting center points of the first positioning block 54 and the second positioning block 56 is parallel to the first direction, and the second positioning block 56 is located between the first positioning block 54 and the final drive support structure 20. Thus, by arranging the first positioning block 54 and the second positioning block 56, when the suspension assembly is connected to the first supporting structure 30 and the main reducer respectively, the first supporting structure 30 is fixed to the base 10 during operation, which is convenient for workpiece installation.

It will be appreciated that, in actual use, when the first support plate 32 is fixedly connected to the first positioning block 54 by the first positioning pin 52, the first support structure 30 is located at the initial position, and the suspension assembly is placed on the first support structure 30. After the suspension assembly is connected to the first support structure 30, the first support plate 32 is slid until the first support plate 32 is fixedly connected to the second positioning block 56 through the first positioning pin 52, and at this time, the first support structure 30 is located at the end position. In the end position, the suspension assembly is assembled with the final drive.

Optionally, the bracket supporting structure 34 comprises a supporting member 340, one end of the supporting member 340 is connected with the first supporting plate 32, and the other end of the supporting member 340 has a connecting surface for adapting connection with the bracket. It should be noted that in actual use, the upper control arm is already attached to the carriage before the carriage and upper control arm are placed on the carriage support structure 34. Specifically, the upper control arm is connected to one end of the bracket, and the other end of the bracket is used to connect with the connection surface of the support 340. Therefore, the supporting member 340 is provided with a connecting surface adapted to the bracket, so that both the bracket and the upper control arm are supported by the supporting member 340.

In one embodiment, the attachment surface is configured to be arcuate to fit the bracket.

In some embodiments, as shown in FIG. 2, the lower control arm positioning structure 36 includes a positioning pin 360 and a support base 362. The locating pin 360 is used for with control arm fixed connection down, and supporting seat 362 locates between locating pin 360 and support bearing structure 34, and supporting seat 362 is used for supporting the one end that the control arm keeps away from locating pin 360 down. Thus, by providing the support base 362 and the positioning pin 360, the middle portion and one end of the lower control arm can be fixed, and the relative movement between the lower control arm and the lower control arm positioning structure 36 can be prevented.

In one embodiment, the support base 362 includes two support arms, one end of each support arm is connected to the first support plate 32, and the other end of each support arm extends away from the first support plate 32. The lower control arm includes two mounting holes, and two mounting holes are used for being connected with the one end adaptation that first backup pad 32 was kept away from to two control arms respectively.

It should be noted that the first support structure 30 can be used to support the lower control arm and bracket assembly in addition to the suspension assembly. In actual use, the lower control arm is fixed, the bracket is placed on the bracket supporting structure 34, and then the lower control arm and the bracket are assembled through the connecting pin. In this way, the assembly of the bracket and the lower control arm on the first support structure 30 is completed.

Fig. 3 is a schematic structural view of a first assembly structure in the embodiment shown in fig. 1.

In order to enable the assembly jig to be used for assembling the bracket and the upper control arm, in some embodiments, as shown in fig. 1 and 3, the assembly jig further includes a first assembly structure 60 provided on the supporting surface, and the first assembly structure 60 is used for assembling the bracket and the upper control arm. The first mounting structure 60 includes a second support plate 62 and a positioning member 64, the second support plate 62 is connected to the support surface, the second support plate 62 is used for placing the rack, the positioning member 64 is disposed on the second support plate 62, and the positioning member 64 is used for fixing the rack to the second support plate 62. Thus, by providing the first mounting structure 60, the mounting of the bracket and the upper control arm can also be accomplished on the support surface, thereby reducing the transit time of the workpiece between different mounting operations. In the actual use process, as shown in fig. 1, the bracket is firstly connected with the upper control arm on the second support plate 62, then the positioning member 64 is removed, the bracket connected with the upper control arm is hoisted to the supporting member 340 of the first support plate 32 and is connected with the lower control arm, so that the assembly of the bracket with the upper control arm and the lower control arm is sequentially completed on the first assembly structure 60 and the first support structure 30.

In the actual use process, the suspension assemblies are assembled with each other, and then the suspension assemblies are connected with the main speed reducer. Specifically, the bracket, the upper control arm and the lower control arm are connected to form the whole suspension assembly, and the suspension assembly is made to approach the main reducer support structure 20 by sliding the first support plate 32, so that the suspension assembly is connected with the main reducer. Therefore, the assembly jig can be used for three assembly processes, saves the transfer time of workpieces, reduces safety risks and improves the assembly efficiency.

FIG. 4 is a schematic diagram of the final drive support structure 20 of the embodiment of FIG. 1.

In some embodiments, as shown in fig. 4, the final drive support structure 20 includes a first support pillar 22, and an end of the first support pillar 22 away from the support surface is provided with a clearance hole. It should be noted that the main speed reducer is provided with an observation window protruding out of the surface of the main speed reducer, and the observation window can be located in the avoidance hole by arranging the avoidance hole, so that the main speed reducer is positioned.

Further, final drive support structure 20 still includes second support column 24, and the lengthwise extending direction of second support column 24 is parallel with first support column 22, and the one end that the holding surface was kept away from to second support column 24 is used for being connected with final drive to make final drive support structure 20 more firm to final drive's support, prevent that final drive from dropping from final drive support structure 20.

FIG. 5 is a schematic structural view of a final drive positioning structure and a second positioning structure in the embodiment shown in FIG. 1.

In order to improve the assembly accuracy of the suspension assembly and the final drive, in some embodiments, as shown in fig. 1 and 5, the assembly fixture further includes a final drive positioning structure 70, and the final drive positioning structure 70 is used to be fixedly connected with the final drive. The final drive positioning structure 70 is slidably coupled to the support surface such that the final drive positioning structure 70 can slide in a direction perpendicular to the first direction to move closer to or away from the final drive support structure 20 (see FIG. 1). Through setting up main reducer location structure 70, make the position of main reducer one end can fix, make the assembly process of main reducer and support more convenient, and improved the assembly precision.

FIG. 6 is a top view of the final drive positioning structure and the second guide structure of the embodiment shown in FIG. 1.

In some embodiments, as shown in fig. 5 and 6, the assembly jig further includes a second guiding structure 80 disposed on the supporting surface and slidably connected to the main reducer positioning structure 70. The second guiding structure 80 includes at least one second guiding rail 82 and at least two second stoppers, and the main reducer positioning structure 70 is slidably connected to the second guiding rail 82. The second rail 82 has a longitudinal extension direction perpendicular to the first direction, and second stoppers 84 are respectively provided at opposite ends of the second rail 82 in the longitudinal extension direction to prevent the final drive from being disengaged from the second rail 82.

Further, as shown in fig. 5, the assembly jig further includes a second positioning structure 90 for positioning the final drive positioning structure 70, and the second positioning structure 90 includes two positioning blocks and a second positioning pin 92, and the second positioning pin 92 is operated to be connected with different positioning blocks at different times so as to determine the initial position and the final position of the final drive positioning structure 70. In actual use, prior to assembling the suspension assembly with the final drive, the final drive positioning structure 70 is slid to approach the final drive support structure 20 until the final drive positioning structure 70 can be connected to the final drive, at which point the final drive positioning structure 70 is in an initial position, and the final drive positioning structure 70 is fixed by the second positioning pin 92. The suspension assembly is then assembled with the final drive, and after assembly the second locating pin 92 is removed and the final drive locating structure 70 is slid away from the final drive support structure 20 until the final drive locating structure 70 is in the end position.

In some embodiments, as shown in FIGS. 1 and 5, the final drive positioning structure 70 includes a flange positioning member 72 and a slide table 74. The flange positioning piece 72 is used for being connected with the main speed reducer, the sliding table 74 is connected with the second guide rail 82 in a sliding mode, and the flange positioning piece 72 is arranged on one side, away from the supporting face, of the sliding table 74. The flange positioning piece 72 is arranged to be connected with a connecting flange at the input end of the main speed reducer.

In some embodiments, as shown in FIG. 5, the final drive positioning structure 70 further includes a position adjustment unit 76. The position adjusting unit 76 includes a plurality of position adjusting members and spacers. A plurality of position adjusting members are screwed to each other to adjust the relative position of each of the position adjusting members to the slide table 74, respectively, and the flange positioning member 72 is connected to the slide table 74 through any one of the position adjusting members. The spacer is provided between the two position regulating members connected to each other. In this way, by adding the gasket between the position adjusting members, the distance between the position adjusting members is changed, so that the relative position between one position adjusting member for connecting with the flange positioning member 72 and the sliding table 74 is changed, so that the relative position between the flange positioning member 72 and the sliding table 74 is changed, and the connection with the final drive is facilitated. It can be understood that the number of the gaskets can be set according to the use requirement so as to meet the position requirement when each workpiece is assembled, and therefore the assembly precision is improved.

Alternatively, a plurality of position adjusting members may be an L-shaped angle seat, a flat plate, and an L-shaped member, respectively, which are connected to each other so that the relative positions of the flange positioning member 72 and the slide table 74 in three directions perpendicular to each other are adjustable.

It is understood that the first supporting structure 30 also includes a position adjusting unit 76, and the supporting member 340, the supporting seat 362 and the positioning pin 360 are respectively connected to the first supporting plate 32 through a position adjusting unit 76 to respectively adjust the relative positions of the bracket and the lower control arm with respect to the first supporting plate 32, so that the positioning between the bracket and the lower control arm and between the bracket and the final drive are more accurate.

In some embodiments, the assembly jig further includes a traveling mechanism 100, and the traveling mechanism 100 is connected to a surface of the base 10 opposite to the supporting surface, so that the assembly jig can be moved to a desired position.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only express several embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the scope of the utility model. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims (10)

1. The utility model provides an assembly jig for assembly final drive and suspension subassembly, the suspension subassembly includes the support, goes up control arm and control arm down, its characterized in that, the assembly jig includes:

a base (10) having a support surface;

the main speed reducer supporting structure (20) is arranged on the supporting surface, and the main speed reducer supporting structure (20) is used for supporting the main speed reducer;

two first support structures (30) arranged on the support surface and respectively positioned on two opposite sides of the main speed reducer support structure (20), wherein the first support structures (30) are used for supporting the suspension assembly;

the first support structure (30) is slidably coupled to the support surface such that the first support structure (30) is slidable in a first direction to move toward or away from the final drive support structure (20).

2. The assembly jig of claim 1, wherein the first support structure (30) comprises:

a first support plate (32) slidably connected to the support surface;

a bracket support structure (34) provided on a side of the first support plate (32) adjacent to the final drive support structure (20) in the first direction, the bracket support structure (34) being for supporting the bracket and the upper control arm;

and the lower control arm positioning structure (36) is arranged on one side, away from the main speed reducer supporting structure (20), of the first supporting plate (32) along the first direction, and the lower control arm positioning structure (36) is used for supporting and positioning the lower control arm.

3. The assembly jig of claim 2 wherein the stand support structure (34) comprises a support (340);

one end of the supporting piece (340) is connected with the first supporting plate (32), and the other end of the supporting piece (340) is provided with a connecting surface which is used for being connected with the bracket in an adaptive mode.

4. The assembly jig of claim 2, wherein the lower control arm positioning structure (36) comprises:

the positioning pin (360), the said positioning pin (360) is used for fixedly connecting with said lower control arm;

the supporting seat (362) is arranged between the positioning pin (360) and the support structure (34), and the supporting seat (362) is used for supporting one end, far away from the positioning pin (360), of the lower control arm.

5. The assembly jig of claim 1, further comprising a first assembly structure (60) arranged on the supporting surface, wherein the first assembly structure (60) is used for assembling the bracket and the upper control arm;

the first assembling structure (60) comprises a second supporting plate (62) and a positioning piece (64), the second supporting plate (62) is connected with the supporting surface, and the positioning piece (64) is arranged on the second supporting plate (62) and used for fixing the bracket to the second supporting plate (62).

6. The assembly jig of claim 1, further comprising a main reducer positioning structure (70) for fixedly connecting with the main reducer;

the final drive positioning structure (70) is slidably coupled to the support surface such that the final drive positioning structure (70) is slidable in a direction perpendicular to the first direction to move toward or away from the final drive support structure (20).

7. The assembly jig according to claim 6, characterized in that the final drive positioning structure (70) includes:

a flange positioning piece (72) used for being connected with the main speed reducer;

the sliding table (74) is connected with the supporting surface in a sliding mode, and the flange positioning piece (72) is arranged on one side, away from the supporting surface, of the sliding table (74).

8. The assembly jig according to claim 7, characterized in that the final drive positioning structure (70) further includes a position adjusting unit (76);

the position adjusting unit (76) comprises a plurality of position adjusting pieces, the position adjusting pieces are in threaded connection with one another so as to respectively adjust the relative position of each position adjusting piece and the sliding table, and the flange positioning piece (72) is connected with the sliding table (74) through any one of the position adjusting pieces;

the position adjusting unit (76) further includes a spacer provided between the two position adjusting members connected to each other.

9. The assembly jig of claim 1, wherein the final drive support structure (20) includes a first support column (22);

one end, far away from the supporting surface, of the first supporting column (22) is provided with an avoiding hole.

10. The assembly jig of claim 1, further comprising:

and the traveling mechanism (100) is connected to the surface of the base (10) opposite to the supporting surface.

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