New energy automobile differential gear assembly equipment and assembly method

Abstract

The invention discloses a new energy automobile differential gear assembly device and method, and belongs to the technical field of differential assembly. The device comprises a mounting frame, and a placing seat used for placing a differential shell is vertically and slidably mounted on the mounting frame; the moving frame is vertically mounted on the mounting frame in a sliding manner, and the moving frame is positioned right above the placing seat; and the positioning mechanism is installed on the moving frame, the cross shaft is clamped or released through the positioning mechanism, and the clamped cross shaft is coaxial with the differential mechanism shell located in the containing base. Compared with the prior art, the bevel gears and the gaskets can be arranged on the four round rods of the universal joint pin in a sleeving mode at the same time through the moving mechanism, the installation speed is effectively increased, in the process that the universal joint pin is installed on the differential mechanism shell, the driving mechanism enables the bevel gears on the universal joint pin to rotate, the bevel gears do not need to be manually rotated, and the tooth clamping phenomenon is avoided; the use is more convenient, and the installation time is effectively shortened.

Description

Technical Field

[0001] This invention relates to the field of differential assembly technology, and particularly to differential gear assembly equipment and assembly methods for new energy vehicles. Background Technology

[0002] In the field of new energy vehicle drive system manufacturing, the differential, as a key transmission component, directly affects the smoothness of power transmission, noise level, and long-term reliability of the entire vehicle through its assembly quality. One of the core assembly steps of the differential is to pre-fit the four planetary bevel gears and shims onto the cross-shaped planetary gear shaft to form a planetary gear set assembly, and then accurately place this assembly into the differential housing to ensure that the four planetary gears simultaneously mesh with the half-shaft gears (bevel gear discs) on both sides.

[0003] Currently, this assembly process mainly relies on manual labor. Operators must manually place and load the four planetary gears and shims, sequentially assembling them onto the cross shaft. They then tentatively place the assembled planetary gear set into the housing, repeatedly adjusting the angles until all gears are fully engaged before finally closing the differential cover. This assembly method is overly reliant on manual installation, with cumbersome steps, a slow pace, and relatively low efficiency. Furthermore, the installation process requires repeated adjustments to the engagement between the planetary bevel gears and the bevel gear plate to ensure all four planetary bevel gears are engaged before proceeding to the next step, significantly reducing installation time. Summary of the Invention

[0004] This invention provides assembly equipment and method for differential gears in new energy vehicles, which can solve the problem that the installation of cross-shaped planetary gear shafts in the prior art is cumbersome and inefficient.

[0005] New energy vehicle differential gear assembly equipment, including: Mounting bracket, on which a mounting seat for placing the differential housing is vertically slidably mounted; A movable frame is vertically and slidably mounted on the mounting bracket, with the movable frame located directly above the placement base; A positioning mechanism is installed on the movable frame to clamp or release the cross shaft. The clamped cross shaft is coaxial with the differential housing located in the placement seat. A storage mechanism, mounted on the mounting frame, is used to store bevel gears and washers; A moving mechanism, mounted on the moving frame, is used to respectively fit the four bevel gears and shims inside the storage mechanism onto the clamped cross shaft to complete the assembly of the cross shaft; A drive mechanism, mounted on the movable frame, is used to drive a bevel gear sleeved on the cross shaft to rotate in contact with the frame.

[0006] Furthermore, the storage mechanism includes a support frame mounted on the mounting bracket. The support frame has four storage rods arranged in a circular array around the placement seat. The storage rods are alternately fitted with bevel gears and shims. The four round rods of the clamped cross shaft are coaxial with the four storage rods respectively. The bevel gears and shims on the four storage rods are respectively transported to the four round rods of the cross shaft by a moving mechanism.

[0007] Furthermore, the moving mechanism includes a circular array of moving plates slidably mounted on the moving frame. The moving plates are located directly above the storage rod and have two vertically arranged levers. The storage rod is located between the two levers. The moving frame is equipped with a transmission assembly for driving the four moving plates to synchronously approach or move away from the clamped cross shaft axis.

[0008] Furthermore, the transmission assembly includes a rotating disk rotatably mounted on the movable frame, the rotating disk having a plurality of arc-shaped forcing grooves arranged in a circular array, a column rod mounted on the movable plate, the plurality of the column rods being slidably tangentially disposed within the four forcing grooves, and a motor for driving the rotating disk to rotate mounted on the movable frame.

[0009] Furthermore, a plurality of wedge plates are elastically slidably mounted in a circular array on one side of the storage rod near the free end, and the inclined surfaces of the wedge plates are used to contact the bevel gears and gaskets located on the storage rod.

[0010] Furthermore, four mounting cylinders are slidably mounted in a circular array on the support frame. A sliding rod is elastically slidably inserted into one end of each mounting cylinder. A push frame that is slidably sleeved on the storage rod is mounted on the free end of the sliding rod. The maximum elastic force of the sliding rod is less than the elastic force of the wedge plate under normal conditions.

[0011] Furthermore, the driving mechanism includes a plurality of driving rods rotatably mounted in a circular array on the movable frame. Each of the plurality of driving rods has a transmission bevel gear mounted on its proximal end. Adjacent transmission bevel gears mesh with each other. A conical platform that contacts the smooth surface of the bevel gear is slidably fitted on the driving rod. A connecting block is rotatably fitted on one end face of the conical platform. The plurality of connecting blocks are respectively mounted between two actuating rods on the movable plate.

[0012] Furthermore, the positioning mechanism includes four positioning slide plates slidably mounted in a circular array on the movable frame, and the movable frame is equipped with a drive assembly for driving the four positioning slide plates to move.

[0013] Furthermore, the drive assembly includes a cylinder mounted on the movable frame, a drive block is mounted on the telescopic end of the cylinder, and multiple hinge rods are hinged to the outside of the drive block, with the free ends of the multiple hinge rods respectively hinged to multiple positioning slides.

[0014] The assembly method for differential gears in new energy vehicles, using the aforementioned new energy vehicle differential gear assembly equipment, includes the following steps: S1: Place the differential housing with the bevel gear plate already installed on the mounting base; S2: The cross shaft is clamped and fixed by the positioning mechanism so that the clamped cross shaft is coaxial with the differential housing on the mounting seat; S3: Drive the moving frame and moving mechanism to take out four bevel gears and shims from the storage mechanism and put them onto the clamped cross shaft in sequence to complete the pre-assembly of the planetary gear set; S4: The drive mechanism drives the bevel gear already mounted on the cross shaft to rotate in opposition, and the mounting seat moves vertically upward so that the planetary gear set meshes with the bevel gear disc in the differential housing; S5: The positioning mechanism releases its grip on the cross shaft, and the placement seat moves downward to reset, completing one assembly cycle.

[0015] Beneficial effects: 1. Compared with the prior art, the present invention can simultaneously install bevel gears and shims on the four round rods of the cross shaft through the moving mechanism, which effectively improves the installation speed. In the process of installing the cross shaft into the differential housing, the driving mechanism causes the bevel gears on the cross shaft to rotate, thereby eliminating the need for manual rotation of the bevel gears and avoiding the phenomenon of gear jamming. It is more convenient to use and effectively reduces the installation time. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a partial perspective sectional view of the present invention. Figure 3 For the present invention Figure 2 Enlarged view of the structure at point B in the middle; Figure 4 For the present invention Figure 2 Enlarged view of the structure at point C; Figure 5 For the present invention Figure 1 Another partial sectional view; Figure 6 This is a partial structural diagram of the present invention; Figure 7 For the present invention Figure 6 Partial three-dimensional sectional view; Figure 8 For the present invention Figure 7 Enlarged view of the structure at point A in the middle; Figure 9 This is a diagram showing the cross shaft of the present invention installed after being mounted on the differential housing.

[0017] Explanation of reference numerals in the attached figures: 1. Mounting frame; 2. Placement seat; 3. Moving frame; 4. Positioning mechanism; 401. Positioning slide plate; 5. Storage mechanism; 501. Support frame; 502. Storage rod; 6. Moving mechanism; 601. Moving plate; 602. Actuating rod; 7. Drive mechanism; 701. Drive rod; 702. Transmission bevel gear; 703. Conical platform; 704. Connecting block; 8. Transmission assembly; 801. Rotating disk; 802. Forcing groove; 803. Column rod; 9. Wedge plate; 10. Mounting cylinder; 11. Sliding rod; 12. Push frame; 13. Drive assembly; 1301. Drive block; 1302. Hinge rod. Detailed Implementation

[0018] The specific embodiments of the present invention will be described in detail below, but it should be understood that the scope of protection of the present invention is not limited to the specific embodiments.

[0019] like Figures 1 to 9 As shown in the figure, the new energy vehicle differential gear assembly equipment and assembly method provided in the embodiment of the present invention include: Mounting bracket 1, on which a placement seat 2 for placing a differential housing is vertically slidably mounted. This application does not impose specific limitations on the structure of the placement seat 2, which can be any holding structure that can meet the requirements for placing the differential housing. Specifically, the top of the placement seat 2 has a placement groove adapted to the differential housing, and the bottom of the placement groove has six vertically upward-facing positioning rods in a circular array. The differential housing is divided into an upper housing and a lower housing. A bevel gear is installed on the lower housing, and six through holes for storing bolts are circularly arrayed on the lower housing. Generally, there are six to eight fixing bolt holes on the differential of a new energy vehicle. That is to say, in use, the number of placement grooves and positioning rods inside the placement seat 2 can be changed or produced according to the differential model that needs to be assembled. The movable frame 3 is vertically and slidably mounted on the mounting frame 1, and the movable frame 3 is located directly above the placement seat 2; The positioning mechanism 4 is installed on the movable frame 3. The positioning mechanism 4 is used to clamp or release the cross shaft. The clamped cross shaft is coaxial with the differential housing located in the placement seat 2. Specifically, the cross shaft refers to the cross-shaped planetary gear shaft in the prior art. Its middle part is a rectangular frame plate structure, and round rods are horizontally constructed on all four sides for fitting bevel gears and shims. Storage mechanism 5 is installed on the mounting frame 1 and is used to store bevel gears and shims. That is, the bevel gear refers to the planetary bevel gear installed in the differential in the prior art. It should be noted that the storage mechanism 5 stores multiple planetary bevel gears and shims. When installing differentials in batches, it is not necessary to repeatedly place shims into the storage mechanism 5. The moving mechanism 6 is installed on the moving frame 3. The moving mechanism 6 is used to put the four bevel gears and shims in the storage mechanism 5 onto the clamped cross shaft to complete the assembly of the cross shaft. It should be noted that, with the cooperation of the moving frame 3, the moving mechanism 6 removes the four bevel gears and four shims from the storage mechanism 5, and movably inserts the four bevel gears onto the four round rods of the cross shaft. The four shims are also movably put onto the four round rods in the same way. It should be noted that this application does not impose specific restrictions on the movement of the movable frame 3. It can be any drive structure that can satisfy the vertical movement of the movable frame 3. For example, in the application, a hydraulic cylinder is installed on the mounting frame 1. The telescopic end of the hydraulic cylinder is vertically downward and connected to the movable frame 3 to realize the control of the vertical movement of the movable frame 3. The drive mechanism 7, mounted on the movable frame 3, drives the bevel gears sleeved on the cross shaft to rotate in contact. In use, the lower differential housing is first placed on the placement seat 2, and then the cross shaft is fixed to the movable frame 3 via the positioning mechanism 4. Subsequently, the movable frame 3, in conjunction with the moving mechanism 6, moves the four bevel gears and four shims from the storage mechanism 5 onto the four round rods of the cross shaft. At this time, the placement seat 2 moves upward so that the bevel gear disc inside the lower differential housing meshes with the bevel gears on the cross shaft. To avoid gear jamming, the drive mechanism 7 causes the contact bevel gears on the cross shaft to rotate. The rotation avoids gear jamming. After the four bevel gears mesh with the bevel gear disc, the positioning mechanism 4 releases the limit on the cross shaft, preventing the seat from moving downwards. The upper differential housing can then be installed on the lower differential housing. Compared with the prior art, the moving mechanism 6 can simultaneously fit bevel gears and shims on the four round rods of the cross shaft, effectively improving the installation speed. During the installation of the cross shaft on the differential housing, the driving mechanism 7 causes the bevel gears on the cross shaft to rotate, thus eliminating the need for manual rotation of the bevel gears and avoiding gear jamming. This makes it more convenient to use and effectively reduces installation time.

[0020] like Figures 1 to 5 As shown, in some embodiments, the storage mechanism 5 includes a support frame 501 mounted on the mounting frame 1. The support frame 501 has four storage rods 502 arranged in a circular array around the placement base 2. The storage rods 502 are alternately fitted with bevel gears and washers. The four round rods of the clamped cross shaft are coaxial with the four storage rods 502. A moving mechanism 6 is used to transport the bevel gears and washers on the four storage rods 502 to the four round rods of the cross shaft, respectively. That is, the bevel gears and washers on the four storage rods 502 are arranged as follows: Figure 5As shown, to prevent the bevel gears and washers on the cross shaft from falling off, multiple wedge plates 9 are elastically slidably mounted in a circular array on one side of the storage rod 502 near the free end. The inclined surfaces of the wedge plates 9 are used to contact the bevel gears and washers located on the storage rod 502. When the bevel gears and washers on the round rod move towards the clamped cross shaft through the moving mechanism 6, the inclined surfaces of the bevel gears and washers will contact the inclined surfaces of the wedge plates 9, thereby forcing the wedge plates 9 to move into the storage rod 502, thus not affecting the movement of the bevel gears and washers on the cross shaft onto the cross shaft round rod.

[0021] like Figures 6 to 8 As shown, in some embodiments, the moving mechanism 6 includes a circular array of moving plates 601 slidably mounted on the moving frame 3. The moving plates 601 are located directly above the storage rod 502 and have two vertically arranged actuating rods 602. The storage rod 502 is located between the two actuating rods 602. The moving frame 3 is equipped with a transmission assembly 8 for driving the four moving plates 601 to synchronously move closer to or away from the clamped cross shaft axis. When it is necessary to move the bevel gear and shim on the storage rod 502 to the cross shaft rod, [the following is unclear and likely refers to a different embodiment] ... The transmission assembly 8 moves four movable plates 601 so that the actuating lever 602 is positioned behind the pad closest to the cross shaft. Then, the movable frame 3 moves downward so that the actuating lever 602 contacts the pad. The transmission assembly 8 then moves the multiple movable plates 601 closer together. At this point, the bevel gear and pad near the cross shaft on each rod move to their corresponding rod under the push of the actuating lever 602, thus achieving rapid installation of the bevel gear and pad. Preferably, to ensure the actuating lever 602 can move stably to the position behind the corresponding pad... Four mounting cylinders 10 are slidably mounted in a circular array on the support frame 501. A sliding rod 11 is elastically slidably inserted into one end of each mounting cylinder 10. A push frame 12 is slidably sleeved on the storage rod 502 at the free end of the sliding rod 11. The maximum elastic force of the sliding rod 11 is less than the elastic force of the wedge plate 9 under normal conditions. That is to say, when the actuating rod 602 moves the bevel gear and shim near the storage rod 502 to the cross shaft, the bevel gear and shim of the storage rod 502 will be moved together by the push frame 12. The bevel gears are brought into contact with each other so that the bevel gears near the free end of the storage rod 502 abut against the inclined surface of the wedge plate 9. However, because the elastic force acting on the wedge plate 9 is greater than the elastic force acting on the sliding rod 11, the bevel gears will not drive the wedge plate 9 to move into the storage rod 502. In this way, after the four moving plates 601 are moved away from each other to their maximum limit position through the transmission assembly 8, the actuating rod 602 is located just behind the next shim to be installed, ensuring that the actuating rod 602 can move accurately to the corresponding position and ensuring accuracy during use.

[0022] like Figures 1 to 3 and Figure 6As shown, in some embodiments, the transmission assembly 8 includes a rotating disk 801 rotatably mounted on the movable frame 3. The rotating disk 801 has a plurality of arc-shaped forcing grooves 802 arranged in a circular array. A column rod 803 is mounted on the movable plate 601, and the column rods 803 are slidably tangentially positioned within the four forcing grooves 802. A motor is mounted on the movable frame 3 to drive the rotating disk 801 to rotate. That is, when the motor starts, it drives the rotating disk 801 to rotate, which in turn drives the four forcing grooves 802 to rotate. Because the column rods 803 are located within the forcing grooves 802, they move within the forcing grooves 802 when the rotating disk 801 rotates. The arc-shaped design of the forcing grooves 802 forces the four movable plates 601 to move closer or further apart, thus requiring only a driving force to simultaneously move the four movable plates 601 closer and further apart, making it more convenient to use.

[0023] like Figure 7 and Figure 8 As shown, in some embodiments, the drive mechanism 7 includes a plurality of drive rods 701 rotatably mounted in a circular array on the movable frame 3. Each drive rod 701 has a transmission bevel gear 702 mounted at a near-end, and adjacent transmission bevel gears 702 mesh with each other. A conical platform 703, which contacts the smooth surface of the bevel gear, is slidably fitted on each drive rod 701. A connecting block 704 is rotatably fitted on one end face of the conical platform 703. Multiple connecting blocks 704 are respectively mounted between two actuating rods 602 on the movable plate 601. Specifically, a motor is mounted on the movable frame 3 to drive one of the drive rods 701 to rotate. It should be noted that when the actuating rod 602 is located away from the cross shaft, the outer periphery of the conical platform 703 is in contact with the smooth circumferential surface (non-tooth surface) of the bevel gear. That is, when the differential housing moves upward, the bevel gear inside needs to engage with the... When the four bevel gears on the clamping cross shaft mesh, as the placement seat 2 moves upward, the motor drives one of the conical platforms 703 to rotate. During the rotation of the conical platform 703, the corresponding bevel gear will rotate. When one bevel gear meshes with the bevel gear disk while the other bevel gears do not mesh with it, the non-meshing bevel gears and bevel gear disk will slip, but will provide a driving force to rotate in the corresponding direction. The bevel gear meshing with the bevel gear disk will rotate under the action of the bevel platform, so that the bevel gear rotates until the bevel gear disk meshes with multiple bevel gears. The design of the transmission bevel gear 702 not only enables multiple drive rods 701 to rotate, but also the direction of rotation is consistent with the direction of rotation when the bevel gears and bevel gear disks mesh. Moreover, the contact drive bevel gear rotation method can effectively avoid the phenomenon of bevel gears and bevel gear disks getting stuck, making gear calibration faster and avoiding damage to the bevel gears.

[0024] like Figures 1 to 8As shown, in some embodiments, the positioning mechanism 4 includes four positioning slide plates 401 slidably mounted in a circular array on the movable frame 3. A drive assembly 13 for driving the four positioning slide plates 401 is mounted on the movable frame 3. The drive assembly 13 includes a cylinder mounted on the movable frame 3. A drive block 1301 is mounted on the telescopic end of the cylinder. Multiple hinge rods 1302 are hinged to the outer side of the drive block 1301. The free ends of the multiple hinge rods 1302 are respectively hinged to the multiple positioning slide plates 401. That is, when the telescopic end of the cylinder moves, it drives the drive block. When drive block 1301 moves, it drives hinge rod 1302, which is hinged to it, to move. Since one end of hinge rod 1302 is hinged to positioning slide plate 401, drive block 1301 moves and drives four positioning slide plates 401 to move closer or further apart through hinge rod 1302. When the four positioning slide plates 401 contact the side of the rectangular groove in the middle of the cross shaft, they can not only clamp the cross shaft, but also the simultaneous movement of the four positioning slide plates 401 plays a positioning role, ensuring that the cross shaft can smoothly enter the lower housing of the differential, thus having a clamping and positioning effect.

[0025] like Figures 1 to 9 As shown, the method for assembling differential gears in new energy vehicles, using the aforementioned new energy vehicle differential gear assembly equipment, includes the following steps: S1: Place the differential housing with the bevel gear plate already installed on the mounting base 2; S2: The cross shaft is clamped and fixed by the positioning mechanism 4 so that the clamped cross shaft is coaxial with the differential housing on the placement seat 2; S3: Drive the moving frame 3 and the moving mechanism 6 to take out four bevel gears and shims from the storage mechanism 5 and put them onto the clamped cross shaft in sequence to complete the pre-assembly of the planetary gear set; S4: The drive mechanism 7 drives the bevel gear already mounted on the cross shaft to rotate in contact, and the placement seat 2 moves vertically upward so that the planetary gear set meshes with the bevel gear disc in the differential housing; S5: The positioning mechanism 4 releases its grip on the cross shaft, and the placement seat 2 moves downward to reset, completing one assembly cycle.

[0026] The above-disclosed embodiments are merely a few specific examples of the present invention. However, the embodiments of the present invention are not limited thereto, and any variations that can be conceived by those skilled in the art should fall within the protection scope of the present invention.

Claims

1. A differential gear assembly equipment for new energy vehicles, characterized in that, include: Mounting bracket (1), on which a mounting seat (2) for placing the differential housing is vertically slidably mounted; The movable frame (3) is vertically slidably mounted on the mounting frame (1), and the movable frame (3) is located directly above the placement seat (2); The positioning mechanism (4) is installed on the movable frame (3). The positioning mechanism (4) is used to clamp or release the cross shaft. The clamped cross shaft is coaxial with the differential housing located in the placement seat (2). Storage mechanism (5), mounted on the mounting frame (1), is used to store bevel gears and shims; The moving mechanism (6) is installed on the moving frame (3). The moving mechanism (6) is used to put the four bevel gears and shims in the storage mechanism (5) onto the clamped cross shaft to complete the assembly of the cross shaft. The drive mechanism (7) is installed on the movable frame (3) and is used to drive the bevel gear sleeved on the cross shaft to rotate in contact.

2. The new energy vehicle differential gear assembly equipment as described in claim 1, characterized in that, The storage mechanism (5) includes a support frame (501) mounted on the mounting frame (1). The support frame (501) has four storage rods (502) arranged in a circular array around the placement seat (2). The storage rods (502) are alternately fitted with bevel gears and shims. The four round rods of the clamped cross shaft are coaxial with the four storage rods (502). The bevel gears and shims on the four storage rods (502) are respectively transported to the four round rods of the cross shaft by the moving mechanism (6).

3. The new energy vehicle differential gear assembly equipment as described in claim 2, characterized in that, The moving mechanism (6) includes a circular array of moving plates (601) slidably mounted on the moving frame (3). The moving plates (601) are located directly above the storage rod (502) and have two vertically arranged levers (602). The storage rod (502) is located between the two levers (602). The moving frame (3) is equipped with a transmission assembly (8) for driving the four moving plates (601) to move synchronously closer to or away from the clamped cross shaft axis.

4. The new energy vehicle differential gear assembly equipment as described in claim 3, characterized in that, The transmission assembly (8) includes a rotating disk (801) rotatably mounted on the movable frame (3). The rotating disk (801) has a plurality of arc-shaped forcing grooves (802) arranged in a circular array. A column rod (803) is mounted on the movable plate (601). The plurality of column rods (803) are slidably tangentially within the four forcing grooves (802). A motor for driving the rotating disk (801) to rotate is mounted on the movable frame (3).

5. The new energy vehicle differential gear assembly equipment as described in claim 4, characterized in that, On one side of the storage rod (502), near the free end, a plurality of wedge plates (9) are elastically slidably mounted in a circular array. The inclined surfaces of the wedge plates (9) are used to contact the bevel gears and shims located on the storage rod (502).

6. The new energy vehicle differential gear assembly equipment as described in claim 5, characterized in that, Four mounting cylinders (10) are slidably mounted in a circular array on the support frame (501). A sliding rod (11) is elastically slidably inserted into one end of the mounting cylinder (10). A push frame (12) is slidably sleeved on the storage rod (502) at the free end of the sliding rod (11). The maximum elastic force of the sliding rod (11) is less than the elastic force of the wedge plate (9) under normal conditions.

7. The new energy vehicle differential gear assembly equipment as described in claim 3, characterized in that, The drive mechanism (7) includes a plurality of drive rods (701) rotatably mounted in a circular array on the movable frame (3). Each drive rod (701) has a transmission bevel gear (702) mounted at a near end. Adjacent transmission bevel gears (702) mesh with each other. A conical platform (703) is slidably mounted on the drive rod (701) and contacts the smooth surface of the bevel gear. A connecting block (704) is rotatably mounted on one end face of the conical platform (703). The plurality of connecting blocks (704) are respectively mounted on the movable plate (601) between two actuating rods (602).

8. The new energy vehicle differential gear assembly equipment as described in claim 1, characterized in that, The positioning mechanism (4) includes four positioning slide plates (401) that are slidably mounted in a circular array on the moving frame (3), and the moving frame (3) is equipped with a drive assembly (13) for driving the four positioning slide plates (401) to move.

9. The new energy vehicle differential gear assembly equipment as described in claim 8, characterized in that, The drive assembly (13) includes a cylinder mounted on the movable frame (3). A drive block (1301) is mounted on the telescopic end of the cylinder. Multiple hinge rods (1302) are hinged to the outside of the drive block (1301). The free ends of the multiple hinge rods (1302) are respectively hinged to multiple positioning slide plates (401).

10. A method for assembling differential gears in new energy vehicles, characterized in that, Using the new energy vehicle differential gear assembly equipment as described in any one of claims 1-9, the process includes the following steps: S1: Place the differential housing with the bevel gear plate installed on the mounting base (2); S2: The cross shaft is clamped and fixed by the positioning mechanism (4) so ​​that the clamped cross shaft is coaxial with the differential housing on the placement seat (2); S3: Drive the moving frame (3) and the moving mechanism (6) to take four bevel gears and shims from the storage mechanism (5) and put them onto the clamped cross shaft in sequence to complete the pre-assembly of the planetary gear set; S4: The drive mechanism (7) drives the bevel gear already mounted on the cross shaft to rotate in contact, and the placement seat (2) moves vertically upward so that the planetary gear set meshes with the bevel gear disc in the differential housing; S5: The positioning mechanism (4) releases its grip on the cross shaft, and the placement seat (2) moves downward to reset, completing one assembly cycle.

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