A vehicle axle housing assembly tool

Abstract

The present application relates to the technical field of vehicle processing, and discloses a vehicle axle housing assembly tool, which includes a base and a guide mechanism, a pressing mechanism and a flipping mechanism arranged on the base; the guide mechanism is used to align the main body with the rear cover coaxially; the pressing mechanism is used to press the rear cover to position the main body relative to the rear cover; the flipping mechanism is used to clamp the main body and flip the main body. The present application can improve the adaptability of the vehicle axle housing assembly tool.

Description

Technical Field

[0001] The present application relates to the technical field of vehicle processing, and in particular to a vehicle axle housing assembly tool. Background Art

[0002] In the process of vehicle manufacturing, the axle housing is an important part of the transmission system. It is not only a force transmission part, but also a load-bearing part. The structural strength of the axle housing will affect the overall performance and safety of the vehicle.

[0003] During the production process of the bridge housing, the bridge housing body needs to be welded to the bridge housing rear cover. The body has a circular mounting hole, and the rear cover is coaxial with the mounting hole of the body when welded. At present, the welding of the body and the rear cover is usually performed by welding the outer peripheral wall of the rear cover and the abutment between the bridge housing. Although this welding method can meet the use requirements under general working conditions to a certain extent, in some harsh working conditions, such as heavy load, high speed or long-term continuous operation, it will put forward higher requirements on the connection strength between the bridge housing and the rear cover. In addition to the outer peripheral wall of the rear cover, it is also necessary to weld the inner peripheral wall of the rear cover and the abutment between the body.

[0004] However, the existing tooling for group welding between the main body and the rear cover refers to the Chinese patent document with publication number CN205684952U, which discloses a tooling for assembling the rear axle housing cover, using a three-jaw chuck to limit the support of the axle housing body, and then welding the axle housing body and the rear axle housing cover. The tooling disclosed in the above related art can only meet the stability when the outer peripheral wall of the rear cover is welded to the main body, and it is not easy to meet the support requirements when the inner peripheral wall of the rear cover is welded to the main body. Summary of the invention

[0005] In order to improve the adaptability of vehicle axle housing assembly tooling, the present application provides a vehicle axle housing assembly tooling.

[0006] The present application provides a vehicle axle housing assembly tool, which adopts the following technical solution:

[0007] A vehicle axle housing assembly tool, comprising a base and a guide mechanism, a pressing mechanism and a flipping mechanism arranged on the base; the guide mechanism is used to align a main body with a rear cover coaxially; the pressing mechanism is used to press the rear cover to position the main body relative to the rear cover; the flipping mechanism is used to clamp the main body and flip the main body;

[0008] The guide mechanism includes a receiving plate, a moving member, a driving member and a cover; the receiving plate is mounted on the base, the moving members are multiple and evenly distributed on the receiving plate along the circumference of the receiving plate, the driving member is arranged on the receiving plate and cooperates with the moving member to drive all the moving members to synchronously move on the receiving plate along the radial direction of the receiving plate; the cover covers the receiving plate and the moving member, and the moving member has a centering portion extending upward from the cover;

[0009] The flip mechanism includes a telescopic frame, a rotation source and a clamping assembly; the telescopic frame is mounted on the base and can be telescoped vertically; the rotation source is mounted on the telescopic frame, and the output end of the rotation source controls the clamping assembly to rotate; the clamping assembly is used to clamp the end of the main body;

[0010] Wherein, all the centering parts are used to abut the main body and the back cover together, so that when the back cover, the main body and the cover shell abut against each other in sequence, the back cover and the main body mounting hole are coaxial.

[0011] By adopting the above technical solution, the main body can be flipped by clamping the flip mechanism, so that after the main body and the outer periphery of the rear cover are welded, the main body can be flipped to the side of the main body away from the rear cover facing upward, so that the inner periphery of the rear cover and the main body can be welded through the installation hole of the main body, so as to improve the adaptability of the vehicle bridge shell assembly tooling. Among them, the guide mechanism maintains the coaxiality of the rear cover and the bridge shell when the rear cover and the bridge shell are matched.

[0012] Optionally, the top of the centering portion has an inclined arc surface, and a guide member is provided between the moving member and the receiving plate, and when the driving member drives the moving member to move on the receiving plate, the guide member drives the moving member to rotate;

[0013] The driving member can drive the movable member to move to a first position and a second position; when the movable member is located at the first position, the inclined arc surfaces of each of the centering portions are away from the central axis of the receiving plate, and at this time, the centering portion is used to extend into the mounting hole of the main body located below the rear cover for centering; when the movable member is located at the second position, the inclined arc surfaces of each of the centering portions are toward the central axis of the receiving plate, and at this time, the centering portions are used to jointly receive the flipped bridge housing, and at this time, the rear cover in the bridge housing is located below the main body, and the inclined arc surface can fit against the outer peripheral wall of the rear cover.

[0014] By adopting the above technical solution, the inclined arc surface design at the top of the centering part and the guide member between the moving part and the receiving plate, the driving member can simultaneously realize the rotation of the moving part when driving the moving part to move, thereby simplifying the tooling structure and improving the operating efficiency. In addition, the moving part can move between the first position and the second position, respectively realizing the centering of the main body under the rear cover and the receiving of the rear axle housing after flipping, further enhancing the versatility and practicality of the tooling.

[0015] Optionally, the movable member includes a base, a linkage shaft and a centering column which are connected in sequence from bottom to top; the base moves on the receiving plate and is controlled by the driving member; the linkage shaft rotates on the base, and the centering column is fixed to the linkage shaft; the cover shell covers the base and the linkage shaft, and the centering portion is the portion of the centering column extending to the outside of the cover shell; the guide member is arranged between the linkage shaft and the receiving plate.

[0016] By adopting the above technical solution, the rotation of the centering part is achieved through the relative rotation between the linkage shaft and the base.

[0017] Optionally, the moving member further includes a connecting seat, the linkage shaft is rotatably connected to the connecting seat, and the connecting seat is detachably connected to the base.

[0018] By adopting the above technical solution, the detachable connection of the connecting seat makes the connection between the linkage shaft and the base more flexible, which is convenient for replacement or adjustment according to actual needs, thereby improving the adaptability and flexibility of the tooling.

[0019] Optionally, the guide member includes a guide gear and a guide rack; the guide gear is coaxially sleeved and fixed on the linkage shaft, the guide rack is connected to the receiving plate and extends along the corresponding moving direction of the base, and the guide rack is simultaneously meshed with the guide gear.

[0020] Optionally, the guide rack is detachably connected to the receiving plate.

[0021] By adopting the above technical solution, the detachable connection of the guide rack makes the tooling structure more flexible and convenient for adjustment and replacement according to actual needs.

[0022] Optionally, the flipping mechanism further comprises a driving source disposed on the telescopic frame, and the driving source is used to drive the rotation source and the clamping assembly to move laterally toward or away from the guide mechanism.

[0023] By adopting the above technical solution, the setting of the driving source in the flipping mechanism enables the rotation source and the clamping assembly to move laterally toward or away from the guide mechanism, thereby facilitating the clamping and flipping operations on bridge shells of different sizes.

[0024] Optionally, the flipping mechanism has two groups, and the two groups of flipping mechanisms are respectively located on two opposite sides of the receiving tray.

[0025] By adopting the above technical solution, the flipping mechanism has two groups, which are respectively opposite to the two sides of the receiving plate, so that the tooling can clamp and flip the two ends of the bridge shell body at the same time, thereby improving the stability and position accuracy of the body when flipping.

[0026] Optionally, the pressing mechanism includes a bracket, a power telescopic member and a pressing seat; the bracket is located on one side of the receiving plate, the power telescopic member is arranged on the bracket and controls the pressing seat to move vertically so as to drive the pressing seat to press the back cover.

[0027] By adopting the above technical solution, the support, the power telescopic member and the pressing seat cooperate so that the pressing seat can stably move vertically and press the rear cover, thereby improving the stability of the rear cover and the main body during the welding process.

[0028] Optionally, the bottom of the pressing seat has an upwardly concave arc opening, the arc opening is coaxial with the receiving plate, and the curvature of the arc opening is consistent with the curvature of the outer circumference of the rear cover.

[0029] By adopting the above technical solution, the arc opening design with an upward concave bottom of the pressing seat enables the pressing seat to better fit the outer circumference of the rear cover, thereby improving the stability and uniformity of the pressing pair and further ensuring the welding quality.

[0030] In summary, the present application includes at least one of the following beneficial effects:

[0031] 1. The main body is flipped by the flipping mechanism so that the main body can be flipped to the rear cover below the main body after being welded with the outer periphery of the rear cover, so as to weld the main body and the inner periphery of the rear cover, and the guide mechanism guides and limits the positions of the main body and the rear cover so that the rear cover and the main body maintain a coaxial position when welding;

[0032] 2. The detachable connection between the connecting seat and the base and the detachable connection between the guide rack and the receiving plate enable the tooling to be flexibly adjusted according to bridge shells of different sizes. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 It is a schematic diagram of the structure of the cooperation between the tooling and the workpiece in the embodiment of the present application;

[0034] Figure 2 It is a schematic diagram of the structure of the tooling in the embodiment of the present application;

[0035] Figure 3 It is a schematic diagram of the structure of the receiving plate and the moving key in the embodiment of the present application;

[0036] Figure 4 is a schematic diagram of the structure of the driving member in the embodiment of the present application;

[0037] Figure 5 yes Figure 1 A schematic diagram of the enlarged structure at A in the middle;

[0038] Figure 6 It is a perspective view of the cooperation between the centering portion and the workpiece when the base is in the first position in the embodiment of the present application.

[0039] Explanation of the accompanying drawings: 1. base; 2. guide mechanism; 21. receiving plate; 22. moving part; 221. base; 222. linkage shaft; 223. centering column; 224. connecting seat; 23. driving part; 24. cover; 3. pressing mechanism; 31. bracket; 32. power telescopic part; 33. pressing seat; 4. flipping mechanism; 41. telescopic frame; 42. rotation source; 43. clamping assembly; 431. connecting frame; 432. clamping seat; 433. driving source; 44. driving source; 5. centering part; 6. inclined arc surface; 7. guide member; 71. guide gear; 72. guide rack; 8. arc opening; 9. support platform; 10. support seat; 11. main body; 12. back cover. DETAILED DESCRIPTION

[0040] The following is combined with Figure 1-6 This application is described in further detail.

[0041] The present application embodiment discloses a vehicle axle housing assembly tool. Figure 1 The vehicle bridge housing assembly tooling includes a base 1 and a guide mechanism 2, a pressing mechanism 3 and a flipping mechanism 4 installed on the base 1. The guide mechanism 2 is used to coaxially center the main body 11 and the rear cover 12. The pressing mechanism 3 is used to press the coaxial main body 11 and the rear cover 12 tightly to facilitate welding between the main body 11 and the rear cover 12. The flipping mechanism 4 is used to clamp the two ends of the main body 11 that are far away from each other, and drive the main body 11 to move vertically and flip. Among them, in this embodiment, the main body 11 of the bridge housing has a circular mounting hole in the middle, and the rear cover 12 is arc-shaped, and the maximum diameter of the rear cover 12 is consistent with the aperture diameter of the mounting hole of the main body 11.

[0042] Reference Figure 2 and Figure 3 As for the guide mechanism 2, the guide mechanism 2 includes a receiving plate 21, a moving member 22, a driving member 23 and a cover 24. The receiving plate 21 is in the shape of a disk with an axis extending vertically, and the receiving plate 21 is mounted on the base 1 through a support platform 9. The moving member 22 is in a block shape and has a plurality of them. In this embodiment, there are four moving members 22.

[0043] All the moving parts 22 are evenly spaced on the receiving plate 21 along the circumference of the receiving plate 21, and all the moving parts 22 move on the receiving plate 21 radially along the receiving plate 21. The receiving plate 21 is provided with sliding grooves corresponding to the moving parts 22 one by one for the moving parts 22 to slide.

[0044] Reference Figure 3 and Figure 4 The driving member 23 is installed on the bottom surface of the receiving plate 21 and is connected to the four moving members 22. Specifically, the driving member 23 is a crank slider structure in the existing four-jaw self-centering chuck to drive the four moving members 22 to move synchronously toward or away from the axial direction of the receiving plate 21.

[0045] Reference Figure 2 and Figure 3 The cover 24 is in the shape of a round cover and is detachably connected to the base 1 by bolts. The inner diameter of the cover 24 is larger than the outer diameter of the receiving plate 21. The cover 24 covers the receiving plate 21 and the moving part 22, and the upper surface of the cover 24 is a horizontal plane.

[0046] Reference Figure 4 and Figure 5 , wherein each moving member 22 includes a base 221, a connecting seat 224, a linkage shaft 222 and a centering column 223 which are connected in sequence from bottom to top. The base 221 moves on the receiving disk 21 and is connected to the driving member 23 and controlled by the driving member 23. The connecting seat 224 is detachably connected to the upper surface of the base 221 by bolts, the linkage shaft 222 is rotatably connected to the connecting seat 224, and the centering column 223 is fixed to the top of the linkage shaft 222. The linkage shaft 222 and the centering column 223 are both cylindrical with the axis extending vertically, and the outer diameter of the linkage shaft 222 is smaller than the outer diameter of the centering column 223. The base 221, the connecting seat 224 and the linkage shaft 222 are all located in the cover shell 24, and the centering column 223 is vertically penetrated through the cover shell 24 upwards, and a through hole corresponding to the centering column 223 is provided on the cover shell 24 for the centering column 223 to penetrate and move radially along the receiving disk 21.

[0047] Reference Figure 2 and Figure 5 The portion of the centering column 223 extending upward from the housing 24 is the centering portion 5. The top of the centering portion 5 has an inclined arc surface 6 that is obliquely cut from one side of the centering portion 5 to the other side. The inclined arc surface 6 can fit the outer peripheral wall of the rear cover 12. At the same time, a guide member 7 is provided between the linkage shaft 222 and the receiving plate 21. When the base 221 drives the linkage shaft 222 to move radially along the receiving plate 21, the guide member 7 drives the linkage shaft 222 to rotate at the same time, so that the inclined arc surface 6 is turned.

[0048] Specifically, each linkage shaft 222 corresponds to a guide member 7, and the guide member 7 includes a guide gear 71 and a guide rack 72. The guide gear 71 is coaxially sleeved and fixed on the outer wall of the linkage shaft 222, and a support corresponding to the linkage shaft 222 is fixed on the upper surface of the receiving plate 21. The guide rack 72 is detachably mounted on the support by bolts, and the guide rack 72 is meshed with the guide gear 71, and the tooth distribution direction of the guide rack 72 is parallel to the moving direction of the corresponding base 221.

[0049] Reference Figure 3 and Figure 5 , wherein the driving member 23 controls the base 221 to move between a first position and a second position, and the first position of the base 221 is closer to the central axis of the receiving tray 21 than the second position.

[0050] When all bases 221 are located at the corresponding first position, the inclined arc surfaces 6 of all centering parts 5 are away from the central axis of the receiving plate 21. At this time, the inclined arc surfaces 6 gradually tilt downward away from the receiving plate 21, so that the tops of all centering parts 5 form a trend of gradually shrinking the outer periphery upward.

[0051] Reference Figure 2 , Figure 5 as well as Figure 6 , when the base 221 is in the first position, first put the main body 11 from top to bottom through the mounting hole onto all the centering parts 5 at the same time and abut against the upper surface of the cover shell 24 at the same time, so that all the centering parts 5 pass through the mounting hole and penetrate the main body 11. At this time, all the centering parts 5 abut against the inner wall of the mounting hole, so that the main body 11 and the receiving plate 21 are coaxial. At the same time, the lowest point of the inclined arc surface 6 of the centering part 5 is flush with the upper surface of the main body 11. Then put the back cover 12 on the main body 11 with the arc opening facing downward. The inner wall of the back cover 12 will abut against the top of all the centering parts 5 at the same time to guide the back cover 12 so that the back cover 12 is coaxial with the mounting hole of the main body 11. Combined with Figure 2 , and then the top of the rear cover 12 is pressed by the pressing mechanism 3, so that the rear cover 12 and the main body 11 are coaxial and relatively positioned. In this state, the operator or the welding mechanism (not shown in the figure) arranged on the base 1 can weld the outer peripheral wall of the rear cover 12 and the main body 11. It should be noted that during the downward movement of the main body 11 and the rear cover 12, the centering portion 5 guides the main body 11 and the rear cover 12 through the inclined arc surface 6.

[0052] When all bases 221 move from the corresponding first position to the corresponding second position, under the cooperation of the guide gear 71 and the guide rack 72, the linkage shaft 222 rotates 180°, and the inclined arc surface 6 of the centering portion 5 moves to a position facing the central axis of the receiving plate 21. At this time, the inclined arc surface 6 gradually tilts downward toward the direction close to the receiving plate 21, so that the tops of all centering portions 5 form a trend of gradually expanding the inner circumference upward.

[0053] After the outer periphery of the rear cover 12 is welded to the main body 11, the main body 11 is first lifted by clamping the two ends of the main body 11 through the flip mechanism 4 and flipping the main body 11 180 degrees, so that the rear cover 12 is located directly below the main body 11 and the main body 11 is still coaxial with the receiving plate 21. Then the base 221 is moved from the first position to the second position away from the central axis of the receiving plate 21, and then the main body 11 is driven down by the flip mechanism 4, and the outer peripheral wall of the rear cover 12 can fit with the inclined arc surface 6 of all the centering parts 5 at the same time, so that the rear cover 12 is supported by the centering part 5, so that the rear cover 12 remains in a stable state, and the rear cover 12 remains coaxial with the receiving plate 21. When the rear cover 12 is supported by the centering part 5, the end of the main body 11 away from the rear cover 12 faces upward, and the operator or the welding mechanism set on the base 1 can reach into the installation hole of the main body 11 to weld the inner wall of the rear cover 12 and the main body 11, thereby realizing the second welding between the main body 11 and the rear cover 12.

[0054] Reference Figure 1 and Figure 2 As for the pressing mechanism 3, the pressing mechanism 3 includes a bracket 31, a power telescopic member 32 and a pressing seat 33. The bracket 31 is fixed on the support platform 9 and extends to the top of the cover 24. The power telescopic member 32 is a multi-stage electric telescopic rod. The seat of the power telescopic member 32 is installed on the bracket 31. The telescopic end of the power telescopic member 32 is vertically downwardly penetrated through the bracket 31 and connected to the pressing seat 33. The pressing seat 33 can be fixed to the telescopic end of the power telescopic member 32 or can be detachably connected to the telescopic end of the power telescopic member 32 by bolts. A circular arc opening 8 with an opening facing downward is formed at the bottom of the pressing seat 33. The arc size of the circular arc opening 8 is consistent with the arc size of the top of the rear cover 12. The center line of the circular arc opening 8 along the vertical direction coincides with the axis of the receiving plate 21. When the rear cover 12 is located above the main body 11 and coaxially abuts against the main body 11, and the main body 11 is coaxial with the receiving plate 21, the powered telescopic member 32 drives the pressing seat 33 to move downward to abut against the top of the rear cover 12, so that it can fit with the outer peripheral wall of the top of the rear cover 12 through the arc opening 8, thereby positioning the rear cover 12 and the main body 11 between the pressing seat 33 and the cover shell 24.

[0055] Reference Figure 1 and Figure 2As for the flipping mechanism 4, the flipping mechanism 4 has two groups, and the two groups of flipping mechanisms 4 are respectively mounted on the two opposite sides of the base 1, and the two groups of flipping mechanisms 4 are respectively opposite to the two opposite sides of the cover 24. Each group of flipping mechanisms 4 includes a telescopic frame 41, a driving source 44, a rotation source 42 and a clamping assembly 43.

[0056] Specifically, the telescopic frame 41 is an electric telescopic rod extending vertically, the base of the telescopic frame 41 is fixedly mounted on the base 1, the telescopic end of the telescopic frame 41 is upward and telescopically telescoped, and the telescopic end of the telescopic frame 41 is fixed with the support base 10. The driving source 44 is an electric telescopic rod extending horizontally, the base of the driving source 44 is fixedly mounted on the support base 10, the telescopic end of the driving source 44 extends along the distribution direction of the two groups of flipping mechanisms 4, and the telescopic end of the driving source 44 is connected to the rotation source 42.

[0057] The rotating source 42 is a rotating motor capable of forward and reverse rotation. The base of the rotating source 42 is connected to the telescopic end of the driving source 44, and the output end of the rotating source 42 is connected to the clamping assembly 43. At the same time, the extended axis of the output end of the rotating source 42 is perpendicular to and intersects with the extended axis of the receiving plate 21, and the output axes of the rotating sources 42 in the two sets of flipping mechanisms 4 are located on the same straight line.

[0058] Reference Figure 1 and Figure 2 The clamping assembly 43 includes a connecting frame 431, a clamping seat 432 and a driving source 433. The connecting frame 431 is fixedly connected to the output end of the rotating source 42. The driving source 433 is an electric telescopic rod, and the seat body of the driving source 433 is installed on the connecting frame 431. The telescopic end of the driving source 433 is telescopic along the axis of the vertical rotating source 42. There are two clamping seats 432, one of which is connected to the telescopic end of the driving source 433, and the other clamping seat 432 is fixedly connected to the connecting frame 431. The driving source 433 drives the connected clamping seat 432 to move toward or away from the other clamping seat 432, so that the mounting seat on the clamping seat 432 can move toward or away from the connecting seat 224. Among them, the opposite side of the two clamping seats 432 is in an arc shape that matches the end of the main body 11.

[0059] After the main body 11 and the rear cover 12 are clamped and abutted between the pressing seat 33 and the cover shell 24, the connecting frame 431 is pushed toward the receiving plate 21 by the driving source 44, so that the end of the main body 11 enters between the two clamping seats 432, and then the end of the main body 11 is clamped between the two clamping seats 432 by the telescopic frame 41 and the driving source 433. After that, the pressing seat 33 is moved upward away from the rear cover 12, and the main body 11 is moved upward by the telescopic frame 41, so that the main body 11 leaves the centering part 5 and is then driven by the rotation source 42 to flip 180°. After the main body 11 flips over, the telescopic frame 41 drives the main body 11 and the rear cover 12 to move downward to be supported by the centering part 5.

[0060] The implementation principle of a vehicle bridge shell assembly tooling in an embodiment of the present application is: first drive the base 221 to the first position, then move the main body 11 and the rear cover 12 in sequence to cooperate with the centering portion 5, so that the main body 11 and the rear cover 12 are coaxially abutted and coaxial with the receiving plate 21, and then move the pressing seat 33 downward to press the rear cover 12 tightly, and then perform welding operations on the abutment point between the outer peripheral wall of the rear cover 12 and the main body 11.

[0061] After the outer peripheral wall of the rear cover 12 is welded to the main body 11, the main body 11 is turned 180 degrees by the turning mechanism 4, and the main body 11 and the rear cover 12 are moved vertically until they are again against the centering parts 5, at which time each centering part 5 is supported on the four sides of the outer peripheral wall of the rear cover 12. Then, the inner peripheral wall of the rear cover 12 and the main body 11 are welded.

[0062] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A vehicle axle housing assembly tool, characterized by: The invention comprises a base (1), and a guiding mechanism (2), a pressing mechanism (3) and a flipping mechanism (4) arranged on the base (1); the guiding mechanism (2) is used to align the main body (11) and the rear cover (12) coaxially; the pressing mechanism (3) is used to press the rear cover (12) so that the main body (11) and the rear cover (12) are relatively positioned; the flipping mechanism (4) is used to clamp the main body (11) and flip the main body (11); The guide mechanism (2) comprises a receiving plate (21), a moving member (22), a driving member (23) and a cover (24); the receiving plate (21) is mounted on the base (1); the moving member (22) has a plurality of members and is evenly distributed on the receiving plate (21) along the circumference of the receiving plate (21); the driving member (23) is arranged on the receiving plate (21) and cooperates with the moving member (22) to drive all the moving members (22) to move synchronously on the receiving plate (21) along the radial direction of the receiving plate (21); the cover (24) covers the receiving plate (21) and the moving member (22); the moving member (22) has a centering portion (5) extending upwardly out of the cover (24); The turning mechanism (4) comprises a telescopic frame (41), a rotation source (42) and a clamping assembly (43); the telescopic frame (41) is mounted on the base (1) and can be telescoped in the vertical direction; the rotation source (42) is mounted on the telescopic frame (41), and the output end of the rotation source (42) controls the clamping assembly (43) to rotate; the clamping assembly (43) is used to clamp the end of the main body (11); Wherein, all the centering portions (5) are used to abut the main body (11) and the rear cover (12) together, so that when the rear cover (12), the main body (11) and the cover shell (24) abut against each other in sequence, the mounting holes of the rear cover (12) and the main body (11) are coaxial; The top end of the centering portion (5) has an inclined arc surface (6), and a guide member (7) is provided between the moving member (22) and the receiving plate (21); when the driving member (23) drives the moving member (22) to move on the receiving plate (21), the guide member (7) drives the moving member (22) to rotate; The driving member (23) can drive the moving member (22) to move to a first position and a second position; when the moving member (22) is located at the first position, the inclined arc surface (6) of each centering portion (5) is away from the central axis of the receiving plate (21), and the centering portion (5) is used to extend into the mounting hole of the main body (11) located below the rear cover (12) for centering; when the moving member (22) is located at the second position, the inclined arc surface (6) of each centering portion (5) is toward the central axis of the receiving plate (21), and the centering portion (5) is used to jointly receive the bridge housing after flipping, and the rear cover (12) in the bridge housing is located below the main body (11), and the inclined arc surface (6) can fit the outer peripheral wall of the rear cover (12); The moving member (22) comprises a base (221), a linkage shaft (222) and a centering column (223) which are connected in sequence from bottom to top; the base (221) moves on the receiving plate (21) and is controlled by the driving member (23); the linkage shaft (222) rotates on the base (221), and the centering column (223) is fixed to the linkage shaft (222); the cover (24) covers the base (221) and the linkage shaft (222), and the centering portion (5) is the portion of the centering column (223) extending to the outside of the cover (24); the guide member (7) is arranged between the linkage shaft (222) and the receiving plate (21); The moving member (22) further comprises a connecting seat (224), the linkage shaft (222) is rotatably connected to the connecting seat (224), and the connecting seat (224) is detachably connected to the base (221).

2. The vehicle axle housing assembly tool according to claim 1, characterized in that: The guide member (7) comprises a guide gear (71) and a guide rack (72); the guide gear (71) is coaxially sleeved and fixed on the linkage shaft (222); the guide rack (72) is connected to the receiving plate (21) and extends along a moving direction corresponding to the base (221); and the guide rack (72) is meshed with the guide gear (71) at the same time.

3. The vehicle axle housing assembly tool according to claim 2, characterized in that: The guide rack (72) is detachably connected to the receiving plate (21).

4. The vehicle axle housing assembly tool according to claim 1, characterized in that: The turning mechanism (4) further comprises a driving source (44) arranged on the telescopic frame (41), the driving source (44) being used to drive the rotation source (42) and the clamping assembly (43) to move laterally in a direction approaching or moving away from the guide mechanism (2).

5. The vehicle axle housing assembly tool according to claim 4, characterized in that: The turnover mechanism (4) has two groups, and the two groups of turnover mechanisms (4) are respectively located on two opposite sides of the receiving plate (21).

6. The vehicle axle housing assembly tool according to claim 1, characterized in that: The pressing mechanism (3) comprises a bracket (31), a power telescopic member (32) and a pressing seat (33); the bracket (31) is located on one side of the receiving plate (21); the power telescopic member (32) is arranged on the bracket (31) and controls the pressing seat (33) to move vertically so as to drive the pressing seat (33) to press the rear cover (12).

7. The vehicle axle housing assembly tool according to claim 6, characterized in that: The bottom of the pressing seat (33) has an upwardly concave arc opening (8), the arc opening (8) is coaxial with the receiving plate (21), and the arc of the arc opening (8) is consistent with the arc of the outer circumference of the rear cover (12).

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