Automobile front axle balance adjusting equipment on automobile flow production line

Abstract

The invention belongs to the technical field of automobile manufacturing, and discloses automobile front axle balance adjusting equipment on an automobile flow production line, which comprises a bracket and a front axle, the front axle comprises an axle rod and a hub, horizontal devices are symmetrically arranged on two sides of the bracket, an adjusting device is arranged on the surface of the bracket, and a fixed box is fixedly arranged above the adjusting device. Supporting devices meshed with gears are symmetrically arranged in the fixing box, a lifting device is fixedly arranged above the fixing box, a clamping device is fixedly arranged on one side of the lifting device, a transmission device is fixedly arranged at one end of the clamping device, a control device is fixedly arranged on one side of the support, and a horizontal adjusting instrument is fixedly arranged above the support. According to the automobile front axle balance adjusting equipment on the automobile flow production line, adaptive adjustment can be conducted according to the sizes and angles of different frames and front axles, horizontal adjustment and dynamic balance detection of the front axles are achieved, the production efficiency and the product quality are improved, and perfect matching of the front axles and the frames is ensured.

Description

Technical Field

[0001] The present invention relates to the technical field of automobile manufacturing, in particular to automobile front axle balancing and adjusting equipment on an automobile assembly line. Background Art

[0002] On the automobile manufacturing production line, the balance adjustment of the vehicle's front axle is crucial. The balance of the front axle is directly related to the vehicle's driving stability, driving comfort and tire service life. Publication No.: CN114589486B proposes a front axle balancing and adjustment device for an automobile on an automobile assembly line, comprising: an AGV body, a hydraulic support seat, a controller, a double-end translation module, a scissor lift, a front axle 11 bracket mechanism and an infrared level; the controller is arranged on the outside of the AGV body; the two scissor lifts are respectively arranged at the front and rear moving ends of the double-end translation module; the two front axle 11 bracket mechanisms are respectively arranged at the lifting ends of the front and rear scissor lifts; and the two infrared level instruments are respectively arranged at the top of the front and rear front axle 11 bracket mechanisms.

[0003] Although the automobile front axle balancing adjustment equipment on the above-mentioned automobile assembly line can realize automatic adjustment of the horizontal angle, tilt angle, offset direction, etc. of the vehicle's front axle in multiple angles and positions, making the vehicle's front axle installation more stable, thereby achieving the purpose of vehicle front axle balancing adjustment, making the vehicle more stable, there is no need for staff to use external lifting equipment for adjustment, and the operation is simple and labor-saving.

[0004] However, existing technologies can only achieve static balance adjustment, that is, simple position or angle adjustment when the front axle is stationary. However, during the actual driving of the car, the front axle is in dynamic operation. It is difficult to accurately guarantee the stable operation of the front axle under complex working conditions by relying solely on static balance adjustment. On the other hand, traditional equipment has extremely limited adaptability to frames and front axles of different specifications and sizes, and cannot flexibly respond to diverse production needs. Moreover, its adjustment operation is usually more complicated and requires a lot of manual intervention, which not only leads to low production efficiency, but also makes it difficult to ensure the consistency and stability of product quality. In summary, a vehicle front axle balance adjustment device on an automobile assembly line is proposed to solve the above problems. Summary of the Invention

[0005] The purpose of the present invention is to provide a vehicle front axle balance adjustment device on an automobile assembly line, which can be adapted and adjusted according to the size and angle of different frames and front axles, realize the horizontal adjustment and dynamic balance detection of the front axle, improve production efficiency and product quality, and ensure the perfect match between the front axle and the frame. In order to achieve the above object, the present invention provides the following technical solutions: The technical solution provided by the present invention is: a front axle balancing and adjusting device for an automobile on an automobile assembly line, comprising a bracket and a front axle, the front axle comprising a bridge rod and a wheel hub, horizontal devices symmetrically provided on both sides of the bracket, an adjusting device provided on the surface of the bracket, a fixed box fixedly provided above the adjusting device, a gear-engaged supporting device symmetrically provided in the fixed box, a lifting device fixedly provided above the fixed box, a clamping device fixedly provided on one side of the lifting device, a transmission device fixedly provided at one end of the clamping device, a control device fixedly provided on one side of the bracket, and a level adjuster fixedly provided above the bracket.

[0006] Furthermore, the horizontal device includes a horizontal frame fixedly installed on both sides of the bracket, an adjustable horizontal hydraulic rod is provided in the horizontal frame, and a horizontal plate is fixedly provided below the horizontal hydraulic rod.

[0007] Furthermore, the adjustment device includes an adjustment groove opened on the surface of the bracket, an adjustment box is fixed in the adjustment groove, an adjustment double-headed motor is fixed in the adjustment box, the output ends of the adjustment double-headed motor are adapted to have adjustment threaded rods, the surface threads of the adjustment threaded rods are adapted to have adjustment slides, and an electric rotating platform is fixed above the adjustment slide.

[0008] Furthermore, the bottom of the fixed box is fixedly connected to the surface of the electric rotating table.

[0009] Furthermore, the support device includes a support motor fixedly mounted on the inner wall of the fixed box, a driving gear adapted to be provided at the output end of the support motor, a support shaft fixedly provided below the driving gear, a support plate fixedly provided on the side of the support shaft, and a support platform fixedly provided at one end of the support plate; A support box is fixedly provided at the other end of the support platform, a hydraulic support rod is fixedly provided in the support box, and a support pad is fixedly provided above the hydraulic support rod.

[0010] Furthermore, the lifting device includes a lifting box fixedly installed above the fixed box, hydraulic lifting rods are symmetrically arranged in the lifting box, and a lifting plate is fixedly arranged above the hydraulic lifting rods.

[0011] Furthermore, the clamping device includes a clamping plate fixedly installed on one side of the lifting plate, and elastic clamping arc plates are symmetrically provided on both sides of the clamping plate. The clamping plate and the clamping arc plates are in contact with the surface of the bridge rod. A clamping box is fixedly provided at one end of the clamping plate, and a clamping groove is provided in the clamping box. The clamping groove is movably adapted to the size of the wheel hub.

[0012] Furthermore, the transmission device includes a transmission box fixedly mounted on one side of the clamping box, a transmission motor is fixedly provided in the transmission box, a transmission gear is fixedly provided at the output end of the transmission motor, a transmission roller is fixedly provided on one side of the transmission gear, the transmission roller is movably adapted to the clamping groove and contacts the wheel hub, a driven gear is meshed with the surface of the transmission gear, a transmission rod is movably provided on one side of the driven gear, a speed sensor is fixedly provided on the other side of the driven gear, and the speed sensor contacts the side of the wheel hub.

[0013] The beneficial effects of this technical solution are: (1) Unlike traditional equipment that can only perform static balance adjustment, the transmission device of the device of the present invention can drive the transmission gear to rotate after running the transmission motor, thereby driving the transmission roller to cause the wheel hub to rotate. At the same time, the speed sensor is used to monitor the rotation speed of the wheel hub in real time and feed the data back to the control device. In this way, accurate dynamic balance adjustment can be achieved, and the state of the car in the actual driving process can be more realistically simulated. This makes the front axle balance adjustment highly consistent with actual needs, greatly improves the stability and safety of the car during driving, and effectively reduces the potential accident risk caused by front axle imbalance.

[0014] (2) The adjusting device drives the adjusting threaded rod to rotate by adjusting the double-headed motor, so as to realize the symmetrical translation of the adjusting slide in the adjusting slot, and accurately adapt to the sizes of different frames and bridges. At the same time, the electric rotating table can make the device rotate flexibly, and easily cope with frames and front axles of different angles and directions. The supporting device can control the supporting motor to drive the active gear to rotate according to the actual needs of different frames, and drive the two sets of supporting devices to move symmetrically synchronously, and use the hydraulic support rod to adjust the height of the support pad. This series of designs enables the equipment to be widely adapted to frames and front axles of various specifications, sizes and angles, which greatly improves the versatility of the equipment. When automobile manufacturers produce multiple models, they do not need to frequently replace equipment, which reduces production costs and improves production flexibility.

[0015] (3) The horizontal device can accurately adjust the extension and retraction of the horizontal hydraulic rod based on the real-time feedback of the level adjuster, so that the horizontal plate fits tightly with the ground, providing a stable horizontal foundation for the entire adjustment device. The support device can accurately adjust the support height to ensure that the frame and the front axle maintain a uniform level. The transmission device combines with the speed sensor to perform dynamic balance detection, which can accurately analyze the balance state of the front axle. These precise adjustment mechanisms cooperate with each other to ensure the high precision of the front axle balance adjustment. Taking tire wear as an example, the front axle after high-precision adjustment by this equipment can make the tire wear more uniform, extend the tire service life, and reduce the cost of car use. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a structural schematic diagram of a vehicle front axle balancing and adjusting device on a vehicle assembly line proposed by the present invention; Figure 2 This is a structural schematic diagram of a vehicle front axle balancing and adjusting device on a vehicle assembly line proposed by the present invention; Figure 3 This is a structural schematic diagram of a vehicle front axle balancing and adjusting device on a vehicle assembly line proposed by the present invention; Figure 4This is a structural schematic diagram of a vehicle front axle balancing and adjusting device on a vehicle assembly line proposed by the present invention; Figure 5 This is a structural schematic diagram of a vehicle front axle balancing and adjusting device on a vehicle assembly line proposed by the present invention; Figure 6 This is a structural schematic diagram of an automobile front axle balancing and adjusting device on an automobile assembly line proposed by the present invention.

[0017] The names of the corresponding symbols in the drawings are: 1. bracket; 2. leveling device; 3. adjusting device; 4. fixing box; 5. supporting device; 6. lifting device; 7. clamping device; 8. transmission device; 9. control device; 10. leveling device; 11. front axle; 201. horizontal frame; 202. horizontal hydraulic rod; 203. horizontal plate; 301. adjusting groove; 302. adjusting box; 303. adjusting threaded rod; 304. adjusting slide plate; 305. electric rotating table; 501. supporting table; 502. supporting plate; 503 , support shaft; 504, driving gear; 505, supporting motor; 506, supporting box; 507, hydraulic support rod; 508, supporting pad; 601, lifting box; 602, hydraulic lifting rod; 603, lifting plate; 701, clamping plate; 702, clamping arc plate; 703, clamping box; 704, clamping groove; 801, transmission box; 802, transmission motor; 803, transmission gear; 804, driven gear; 805, transmission rod; 806, speed sensor; 1101, bridge rod; 1102, wheel hub. DETAILED DESCRIPTION

[0018] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0019] The specific implementation process is as follows: Example 1: See also Figure 1-6The present invention provides a technical solution: a vehicle front axle balancing and adjusting device on an automobile assembly line, comprising a bracket 1 and a front axle 11, the front axle 11 comprising a bridge rod 1101 and a wheel hub 1102, horizontal devices 2 symmetrically provided on both sides of the bracket 1, an adjusting device 3 provided on the surface of the bracket 1, a fixed box 4 fixed above the adjusting device 3, a support device 5 symmetrically provided with gear meshing in the fixed box 4, a lifting device 6 fixed above the fixed box 4, a clamping device 7 fixed on one side of the lifting device 6, a transmission device 8 fixed on one end of the clamping device 7, a control device 9 fixed on one side of the bracket 1, and a level adjuster 10 fixed above the bracket 1; The horizontal device 2 is fixedly installed on both sides of the bracket 1, and the horizontal frame 201 is fixed to the bracket 1 by welding; the horizontal hydraulic rod 202 is installed in a specific installation slot inside the horizontal frame 201, and the piston rod of the horizontal hydraulic rod 202 is connected to the horizontal plate 203 through a shaft that can be slightly adjusted in angle; According to the horizontal state information of the support 1 fed back by the level adjuster 10, by adjusting the telescopic length of each horizontal hydraulic rod 202, the horizontal plate 203 is pushed or pulled so that the horizontal plate 203 is in close contact with the ground and remains stable, thereby adjusting the levelness of the entire adjustment device 3, providing a stable and reliable basic platform for the subsequent precise operation of the balance adjustment of the front axle 11; The adjustment device 3 is provided on the surface of the bracket 1. The adjustment groove 301 is formed by machining on the surface of the bracket 1. The adjustment box 302 is fixedly installed in the adjustment groove 301 and can be fastened by welding or bolts. The adjustment double-headed motor is installed inside the adjustment box 302. Its output shaft is connected to the adjustment threaded rod 303 through a coupling to ensure stable power transmission. The adjustment threaded rod 303 is mounted on the inner wall of the adjustment box 302 through a bearing and can rotate freely. The adjustment slide 304 is adapted to be connected to the adjustment threaded rod 303 through a thread. The electric rotating platform 305 is fixedly installed above the adjustment slide 304 and is fixed by bolts or welding. When the double-headed adjustment motor is started, its output shaft drives the adjustment threaded rod 303 to rotate. Due to the threaded connection between the adjustment slide 304 and the adjustment threaded rod 303, the adjustment slide 304 will translate symmetrically in the horizontal direction within the adjustment slot 301, thereby achieving precise adjustment of the horizontal position of the entire adjustment device 3 to adapt to the lateral position requirements of different vehicle frames and front axles 11. At the same time, the electric rotating platform 305 can rotate freely in the horizontal direction, driving the components installed above it, such as the fixing box 4, to adjust the angle, so as to meet the installation and adjustment requirements of the vehicle frames and front axles 11 at different angles. The bottom of the fixed box 4 is fixed to the surface of the electric rotating table 305 by welding or bolting to ensure a firm connection. When the electric rotating table 305 rotates, the fixed box 4 can rotate synchronously. The fixed box 4 serves as a mounting carrier for components such as the supporting device 5 and the lifting device 6, providing a stable mounting base for these components and moving with the position and angle adjustment of the adjusting device 3 to cooperate with the adjustment operation of the entire device on different front axles 11 and frames; The support device 5 is symmetrically installed in the fixed box 4, and the support motor 505 is fixedly installed at a specific installation position on the inner wall of the fixed box 4 and fastened by bolts; the driving gear 504 is installed on the output shaft of the support motor 505, and power transmission is achieved through a key connection; the support shaft 503 is installed in the fixed box 4 through a bearing and is meshed with the driving gear 504 to ensure that the driving gear 504 can drive the support shaft 503 to rotate synchronously when it rotates; the support plate 502 is fixedly installed on the side of the support shaft 503 and is connected by welding or bolts; the support platform 501 is installed at one end of the support plate 502 and is also fixed by welding or bolts; the support box 506 is fixed at the other end of the support platform 501, and the hydraulic support rod 507 is installed inside the support box 506, and its piston rod is connected to the support pad 508 by welding or threading; When the control device 9 starts the support motor 505, the output shaft of the support motor 505 drives the driving gear 504 to rotate, and the rotation of the driving gear 504 drives the symmetrically arranged support device 5 to move synchronously and symmetrically. The driving gear 504 is fixedly connected to the support shaft 503, so that the support shaft 503 rotates, thereby driving the support plate 502 and the support platform 501 to move in the horizontal direction. By controlling the synchronous and symmetrical movement of the two groups of support devices 5, the support position can be adjusted to align with the support points of different frames; at the same time, the hydraulic support rod 507 can drive the support pad 508 to rise or fall by adjusting the extension length of its piston rod according to the actual height requirements of the frame and the front axle 11, thereby stably supporting the frame, so that the frame and the front axle 11 maintain a uniform horizontal height, and provide stable support for the installation and balance adjustment of the front axle 11; The lifting device 6 is fixedly installed above the fixed box 4, and the lifting box 601 is connected to the fixed box 4 by welding or bolts; the hydraulic lifting rod 602 is symmetrically installed in the lifting box 601, and its cylinder body is fixed to the lifting box 601 by bolts or welding, and the piston rod is connected to the lifting plate 603 by welding or high-strength bolts; The control device 9 controls the extension and retraction of the hydraulic lifting rod 602, and the piston rod of the hydraulic lifting rod 602 pushes or pulls the lifting plate 603 up and down, thereby accurately adjusting the height of the front axle 11, so that the front axle 11 can quickly and accurately reach the appropriate height position when being installed with the vehicle frame, facilitating the docking and installation operation of the two. The clamping device 7 is fixedly mounted on one side of the lifting plate 603, and the clamping plate 701 is connected to the lifting plate 603 by welding or bolts. The clamping arc plates 702 are symmetrically mounted on both sides of the clamping plate 701 through elastic connectors, such as springs, etc., which can not only ensure the clamping force on the bridge rod 1101, but also adapt to bridge rods 1101 of different diameters. The clamping box 703 is fixedly mounted on one end of the clamping plate 701 and is connected by welding or bolts. The clamping groove 704 is provided inside the clamping box 703. The clamping plate 701 and the elastic clamping arc plate 702 are tightly fitted to the surface of the bridge rod 1101 to firmly clamp the bridge rod 1101 and prevent the front axle 11 from shifting during the adjustment process. At the same time, the wheel hubs 1102 at both ends of the bridge are placed in the clamping grooves 704 in the clamping box 703. The clamping grooves 704 and the wheel hubs 1102 are flexibly adapted to each other in size, further stabilizing the position of the front axle 11 and ensuring the stability of the front axle 11 during subsequent dynamic balancing tests and other operations. The transmission device 8 is fixedly mounted on one side of the clamping box 703, and the transmission box 801 is connected to the clamping box 703 by welding or bolts; the transmission motor 802 is fixedly mounted inside the transmission box 801, and its output shaft is connected to the transmission gear 803 by a key; the transmission roller is mounted on one side of the transmission gear 803 and is coaxially fixedly connected to the transmission gear 803; the driven gear 804 is meshed with the transmission gear 803 and is mounted on a specific shaft inside the transmission box 801, and is freely rotatable through a bearing; the transmission rod 805 is movably mounted on one side of the driven gear 804, and the speed sensor 806 is fixedly mounted on the other side of the driven gear 804, and its sensing end is in contact with the side of the wheel hub 1102; After the transmission motor 802 is started, the output shaft drives the transmission gear 803 to rotate, and the transmission gear 803 drives the coaxial transmission roller to rotate. Since the transmission roller contacts the wheel hub 1102, the wheel hub 1102 is driven to rotate, simulating the dynamic operation state of the front axle 11 when the car is driving; during the rotation of the transmission gear 803, the driven gear 804 engaged therewith rotates synchronously, and the driven gear 804 drives the speed sensor 806 to operate. The speed sensor 806 monitors the rotation speed of the wheel hub 1102 in real time and feeds the data back to the control device 9, providing data support for the dynamic balance detection of the front axle 11, so that the control device 9 can determine the balance state of the front axle 11 based on the rotation speed data and make corresponding adjustments; The control device 9 is fixedly mounted on one side of the support 1 and is connected via electrical wires to the horizontal hydraulic rod 202 of the leveling device 2, the double-headed adjustment motor and electric rotary table 305 of the adjustment device 3, the support motor 505 and hydraulic support rod 507 of the support device 5, the hydraulic lifting rod 602 of the lifting device 6, and the transmission motor 802 of the transmission device 8, thereby transmitting control signals to these devices. The level adjuster 10 is fixedly mounted above the support 1 and is connected to the control device 9 via a data cable, transmitting the monitored horizontal status data of the support 1 to the control device 9 in real time. The control device 9, serving as the control core of the entire equipment, receives data on the horizontal state of the support 1 from the leveling device 10, as well as data on the rotational speed of the wheel hub 1102 from the speed sensor 806. Based on pre-set programs and algorithms, it issues control instructions to various devices, including the leveling device 2, the adjusting device 3, the supporting device 5, the lifting device 6, and the transmission device 8, coordinating the operation of each device to achieve precise balancing and adjustment of the front axle 11. The leveling device 10 monitors the horizontal state of the support 1 in real time, providing accurate horizontal data to the control device 9, ensuring that the equipment performs balancing and adjustment of the front axle 11 in a horizontal state, thereby improving adjustment accuracy. Working principle: Place the bracket 1 at a suitable position on the automobile assembly line, connect the power supply and hydraulic system; start the control device 9, monitor the horizontal state of the bracket 1 through the level adjuster 10, adjust the horizontal hydraulic rod 202 of the leveling device 2, make the horizontal plate 203 closely contact with the ground, and ensure that the bracket 1 is in a horizontal position; According to the size and angle of the vehicle frame and the front axle 11, the double-headed adjustment motor of the adjustment device 3 is activated by the control device 9, driving the adjustment threaded rod 303 to rotate, so that the adjustment slide 304 moves symmetrically in the adjustment slot 301 to adjust the horizontal position; at the same time, the electric rotating platform 305 is activated to rotate the device to a suitable angle to adapt to the direction of the vehicle frame and the front axle 11; Place the front axle 11 of the vehicle on the device so that the axle rod 1101 contacts the clamping plate 701 and the clamping arc plate 702 of the clamping device 7, and the wheel hub 1102 is placed in the clamping groove 704; Start the support motor 505 of the support device 5 to control the rotation of the driving gear 504, driving the meshing gears on one side to rotate synchronously in the opposite direction, so that the two groups of support devices 5 can move synchronously and symmetrically, and adjust the positions of the support plate 502 and the support platform 501 to align them with the support points of the vehicle frame; Start the hydraulic support rod 507 of the support device 5 and adjust the height of the support pad 508 to support the vehicle frame so that the vehicle frame and the front axle 11 are kept in the same level; Start the hydraulic lifting rod 602 of the lifting device 6 to adjust the height of the front axle 11 as needed to facilitate installation on the vehicle frame; Start the transmission motor 802 of the transmission device 8 to drive the transmission gear 803 to rotate, and the transmission gear 803 drives the transmission roller to rotate, thereby rotating the wheel hub 1102. The speed sensor 806 monitors the rotation speed of the wheel hub 1102 in real time and feeds back the data to the control device 9; the control device 9 analyzes the balance state of the front axle 11 based on the feedback data. If the front axle 11 is unbalanced, the control device 9 balances the front axle 11 by adjusting the angle of the horizontal device 2 until the balance requirement is met.

[0020] The above is only an embodiment of the present invention, and common knowledge such as the specific technical solutions or characteristics in the solution is not described in detail here. It should be pointed out that for those skilled in the art, without departing from the technical solution of the present invention, several variations and improvements can be made, which should also be regarded as the scope of protection of the present invention, and these will not affect the effect of the implementation of the present invention and the practicality of the patent. The scope of protection required by this application shall be based on the content of its claims, and the specific implementation methods and other records in the description can be used to interpret the content of the claims.

Claims

1. A vehicle front axle balancing and adjusting device on a vehicle assembly line, comprising a bracket (1) and a front axle (11), wherein the front axle (11) comprises a bridge rod (1101) and a wheel hub (1102), and is characterized in that: The bracket (1) is symmetrically provided with a leveling device (2) on both sides, the bracket (1) is provided with an adjusting device (3) on the surface, a fixing box (4) is fixedly provided above the adjusting device (3), a supporting device (5) with gear meshing is symmetrically provided in the fixing box (4), a lifting device (6) is fixedly provided above the fixing box (4), a clamping device (7) is fixedly provided on one side of the lifting device (6), a transmission device (8) is fixedly provided at one end of the clamping device (7), a control device (9) is fixedly provided on one side of the bracket (1), and a level adjusting instrument (10) is fixedly provided above the bracket (1).

2. The vehicle front axle balancing and adjusting device on a vehicle assembly line according to claim 1, characterized in that: The horizontal device (2) comprises horizontal frames (201) fixedly mounted on both sides of the bracket (1), an adjustable horizontal hydraulic rod (202) being provided in the horizontal frame (201), and a horizontal plate (203) being fixedly provided below the horizontal hydraulic rod (202).

3. The vehicle front axle balancing and adjusting device on a vehicle assembly line according to claim 1, characterized in that: The adjusting device (3) comprises an adjusting groove (301) provided on the surface of the bracket (1), an adjusting box (302) being fixedly provided in the adjusting groove (301), an adjusting double-headed motor being fixedly provided in the adjusting box (302), an adjusting threaded rod (303) being adapted for use at the output ends of the adjusting double-headed motor, an adjusting slide plate (304) being adapted for use on the surface of the adjusting threaded rod (303), and an electric rotating platform (305) being fixedly provided above the adjusting slide plate (304).

4. The vehicle front axle balancing and adjusting device on a vehicle assembly line according to claim 3, characterized in that: The bottom of the fixed box (4) is fixedly connected to the surface of the electric rotating platform (305).

5. The automobile front axle balancing and adjusting device on an automobile production line according to claim 1, characterized in that: The supporting device (5) comprises a supporting motor (505) fixedly mounted on the inner wall of the fixed box (4); an output end of the supporting motor (505) is adapted to be provided with a driving gear (504); a supporting shaft (503) is fixedly provided below the driving gear (504); a supporting plate (502) is fixedly provided on the side of the supporting shaft (503); and a supporting platform (501) is fixedly provided at one end of the supporting plate (502); A support box (506) is fixedly provided at the other end of the support platform (501), a hydraulic support rod (507) is fixedly provided in the support box (506), and a support pad (508) is fixedly provided above the hydraulic support rod (507).

6. The automobile front axle balancing and adjusting device on an automobile production line according to claim 1, characterized in that: The lifting device (6) comprises a lifting box (601) fixedly mounted above the fixed box (4), hydraulic lifting rods (602) are symmetrically arranged in the lifting box (601), and a lifting plate (603) is fixedly arranged above the hydraulic lifting rods (602).

7. The automobile front axle balancing and adjusting device on an automobile production line according to claim 6, characterized in that: The clamping device (7) includes a clamping plate (701) fixedly mounted on one side of the lifting plate (603), elastic clamping arc plates (702) symmetrically provided on both sides of the clamping plate (701), the clamping plate (701) and the clamping arc plates (702) contacting the surface of the bridge rod (1101), a clamping box (703) fixedly provided at one end of the clamping plate (701), a clamping groove (704) provided in the clamping box (703), and the clamping groove (704) is movably adapted to the size of the hub (1102).

8. The automobile front axle balancing and adjusting device on an automobile production line according to claim 7, characterized in that: The transmission device (8) comprises a transmission box (801) fixedly mounted on one side of the clamping box (703), a transmission motor (802) fixedly provided in the transmission box (801), a transmission gear (803) fixedly provided at the output end of the transmission motor (802), a transmission roller fixedly provided on one side of the transmission gear (803), the transmission roller movably adapted to the clamping groove (704) and in contact with the wheel hub (1102), a driven gear (804) meshed with the surface of the transmission gear (803), a transmission rod (805) movably provided on one side of the driven gear (804), a speed sensor (806) fixedly provided on the other side of the driven gear (804), and the speed sensor (806) in contact with the side of the wheel hub (1102).

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