Rear axle adjusting and positioning equipment and rear axle upper brake disc adjusting method based on rear axle adjusting and positioning equipment

Abstract

The invention discloses rear axle adjusting and positioning equipment and a rear axle upper brake disc adjusting method based on the rear axle adjusting and positioning equipment. The rear axle adjusting and positioning equipment comprises a base, a first penetrating type corner positioning structure, a second penetrating type corner positioning structure, a first supporting type corner positioning structure, a second supporting type corner positioning structure and a two-disc supporting and positioning structure. A first penetrating type corner positioning structure, a second penetrating type corner positioning structure, a first supporting type corner positioning structure, a second supporting type corner positioning structure and a two-disc supporting positioning structure are installed on the base. The supporting point of the first penetrating type corner positioning structure and the supporting point of the second penetrating type corner positioning structure are located on the same straight line, and the supporting point of the first supporting type corner positioning structure and the supporting point of the second supporting type corner positioning structure are located on the same straight line. The rear axle adjusting and positioning equipment solves the problem that in the prior art, a rear axle of a special-shaped structure cannot be accurately positioned.

Description

Technical Field

[0001] This invention relates to the field of automotive rear axle assembly, specifically to a rear axle adjustment and positioning device and a method for adjusting the brake disc on the rear axle based thereon. Background Technology

[0002] like Figure 1 As shown, the automotive parts include a rear axle and brake discs. The brake discs are connected to both sides of the rear axle. During the production process, the brake discs are pre-installed on the rear axle. Subsequently, the relative positions of the rear axle and the brake discs need to be manually adjusted to improve the accuracy of the brake discs on the rear axle.

[0003] In existing technologies, it is impossible to accurately position the rear axle. The rear axle is not positioned, and both the rear axle and the brake disc have irregular shapes. This makes it easy for the adjustment reference to change when the relative position of the brake disc and the rear axle is adjusted. As a result, the relative position of the brake disc and the rear axle cannot be accurately aligned after adjustment. Summary of the Invention

[0004] This invention provides a rear axle adjustment and positioning device and a method for adjusting the brake disc on the rear axle based thereon, solving the problem in the prior art that it is impossible to accurately position irregularly shaped rear axles.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: This invention first discloses a rear axle adjustment and positioning device, comprising: a base, a detection-type auxiliary adjustment device, and a component positioning device; the detection-type auxiliary adjustment device and the component positioning device are installed on the base. The component positioning device is used to lock the rear axle in the vehicle and to loosely position the brake disc connected to the rear axle. The component positioning device blocks the adjustment of the brake disc position on the rear axle. The detection-type auxiliary adjustment device is located next to the brake disc loosened and positioned by the component positioning device. The detection-type auxiliary adjustment device is used to detect whether the end face position of the brake disc loosened and positioned by the component positioning device meets the requirements.

[0006] Preferably, the component positioning device includes: a first through-type corner positioning structure, a second through-type corner positioning structure, a first support-type corner positioning structure, a second support-type corner positioning structure, and two disc support positioning structures; the first through-type corner positioning structure, the second through-type corner positioning structure, the first support-type corner positioning structure, the second support-type corner positioning structure, and the two disc support positioning structures are mounted on the base; the support points of the first through-type corner positioning structure and the second through-type corner positioning structure are on a straight line, and the support points of the first support-type corner positioning structure and the second support-type corner positioning structure are on a straight line; the first through-type corner positioning structure and the second through-type corner positioning structure are used to support one side of the rear axle in the automotive component, and the first support-type corner positioning structure and the second support-type corner positioning structure are used to support the other side of the rear axle in the automotive component; one disc support positioning structure is located between the first through-type corner positioning structure and the first support-type corner positioning structure, and the other disc support positioning structure is located between the second through-type corner positioning structure and the second support-type corner positioning structure; one disc support positioning structure supports and positions one brake disc in the automotive component, and the other disc support positioning structure supports and positions another brake disc in the automotive component.

[0007] Preferably, lateral guide posts are provided next to both the first through-type corner positioning structure and the second through-type corner positioning structure. There are at least four lateral guide posts, and all lateral guide posts form a U-shape, surrounding the rear axle of the vehicle component.

[0008] Preferably, a central support structure is provided in the middle of the base, which supports the middle of the rear axle in the automotive component.

[0009] Preferably, both the first through-type corner positioning structure and the second through-type corner positioning structure include: a through-type positioning seat and a first rotary clamping mechanism. The through-type positioning seat passes through a through hole opened on one side of the rear axle and supports the rear axle. The first rotary clamping mechanism is provided next to the through-type positioning seat and clamps the rear axle near the through-type positioning seat.

[0010] Preferably, both the first through-hole corner positioning structure and the second through-hole corner positioning structure further include: a first support column, the first support column being located next to the through-hole positioning seat, and the first support seat supporting the rear axle.

[0011] Preferably, both the first and second supporting corner positioning structures include a second support column and a second rotary clamping mechanism. The second support column is mounted on the base and supports the rear axle on the side away from the first through-type corner positioning structure. A second rotary clamping mechanism is provided next to the second support column and is used to clamp the rear axle at the position close to the second support column.

[0012] Preferably, the disc support positioning structure includes: a support platform and a side-adhering seat. The support platform supports the middle part of the brake disc in the automotive component. A side-adhering seat is installed on the side of the support platform away from the center of the base. The side-adhering seat supports the brake disc in the automotive component and is also in close contact with the side of the brake disc in the automotive component.

[0013] Preferably, the top surface of the support platform is an inclined surface, and the position of the inclined surface near the edge of the side that is close to the seat is higher than the position of the edge of the inclined surface near the center of the base.

[0014] The present invention also discloses a method for adjusting the brake disc on the rear axle, the method being implemented based on the aforementioned rear axle adjustment and positioning device; The method for adjusting the rear axle brake disc includes the following steps: S1. Use the factory-installed crane to suspend the rear axle and brake disc, which are connected to each other by eccentric bolts, to the rear axle adjustment and positioning equipment. S2. The rear axle is positioned and clamped using a component positioning device, and the brake disc is loosened and positioned by the component positioning device. S3. Manually adjust the eccentric bolts between the brake disc and the rear axle. During the adjustment process, the detection-type auxiliary adjustment device simultaneously determines whether the position of the loosened brake disc end face meets the requirements.

[0015] Compared to existing technologies, this invention has the following advantages: In this application, when positioning the interconnected rear axle and brake disc, firstly, a factory hoist is used to suspend the interconnected rear axle and brake disc above the base; then, the rear axle is brought close to the first through-type corner positioning structure and the second through-type corner positioning structure, and the first through-type corner positioning structure and the second through-type corner positioning structure are used to accurately position one side of the rear axle; then, the first support-type corner positioning structure and the second support-type corner positioning structure are used to position the other side of the rear axle, thereby locking the rear axle and preventing the rear axle from moving arbitrarily during subsequent brake disc adjustment, making it convenient to adjust the position of the brake disc based on the rear axle. In the above-mentioned rear axle positioning process, the disc support positioning structure supports the brake disc and also has a certain effect of pre-positioning the brake disc in the lateral direction. It is simply support and pre-positioning to facilitate subsequent adjustment of the brake disc position. During the adjustment process, it is necessary to adjust the toe angle and camber angle of the brake disc relative to the rear axle. The adjustment is all done manually by adjusting the eccentric shaft at the connection between the brake disc and the rear axle. By precisely positioning the rear axle as described above, a reference point is provided for subsequent brake disc adjustments. With the reference position unchanged, it is easy to adjust the position of the brake disc relative to the rear axle to the required position, that is, toe angle and camber angle meet the standards.

[0016] Other advantages, objectives and features of the present invention will become apparent in part from the following description, and in part from those skilled in the art through study and practice of the invention. Attached Figure Description

[0017] Figure 1 This is a structural diagram of the rear axle and brake disc in an automobile.

[0018] Figure 2 This is a schematic diagram of the rear axle adjustment and positioning device.

[0019] Figure 3 This is a schematic diagram of the structure after the rear axle and brake disc are installed on the rear axle adjustment and positioning device.

[0020] Figure 4 This is a schematic diagram showing the toe angle α and camber angle b of the brake disc relative to the rear axle.

[0021] Reference numerals: Rear axle 11, Brake disc 12, Base 1, First through-type corner positioning structure 2, Through-type positioning seat 21, First rotary clamping mechanism 22, Rotary clamping cylinder 221, Clamping arm 222, First support column 23, Second through-type corner positioning structure 3, First support-type corner positioning structure 4, Second support column 41, Second rotary clamping mechanism 42, Second support-type corner positioning structure 5, Disc support positioning structure 6, Support platform 61, Inclined surface 610, Side contact seat 62, Lateral guide column 7, Central support structure 8, Detection-type auxiliary adjustment device 9, Display screen 91, Control box 92, Laser distance sensor 93. Detailed Implementation

[0022] To make the technical means, creative features, objectives and effects of this invention clearer and easier to understand, the invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0023] like Figure 2 as well as Figure 3 As shown, the present invention first discloses a rear axle 11 adjustment and positioning device, including: a base 1, a detection-type auxiliary adjustment device, and a component positioning device; the detection-type auxiliary adjustment device and the component positioning device are installed on the base 1. The component positioning device is used to lock the rear axle 11 in the automobile and to loosely position the brake disc 12 connected to the rear axle 11. The component positioning device blocks the adjustment of the brake disc 12 position on the rear axle 11. The detection-type auxiliary adjustment device is located next to the brake disc 12 loosely positioned by the component positioning device. The detection-type auxiliary adjustment device is used to detect whether the end face position of the brake disc 12 loosely positioned by the component positioning device meets the requirements.

[0024] Optionally, the detection-type auxiliary adjustment device mainly detects and displays the toe angle and camber angle of the brake disc 12. The detection-type auxiliary adjustment device includes a display screen, a control box, and at least three laser-type distance sensors. A stand is mounted on the base 1, and at least three laser sensors are mounted on the stand. The laser sensors are aligned with the end face of the brake disc 12 to be loosened and positioned. All laser sensors must not be in a straight line. The output of the laser sensors is connected to the control box, which is communicatively connected to the display screen. The display screen displays the toe angle and camber angle, allowing the adjustment operator to quickly react to the direction of adjustment, thus increasing the speed of adjusting the toe angle and camber angle of the brake disc 12 and enabling the relative positional relationship between the brake disc 12 and the rear axle 11 to quickly reach the required level.

[0025] Preferably, the component positioning device includes: a first through-type corner positioning structure 2, a second through-type corner positioning structure 3, a first support-type corner positioning structure 4, a second support-type corner positioning structure 5, and a two-plate support positioning structure 6; the first through-type corner positioning structure 2, the second through-type corner positioning structure 3, the first support-type corner positioning structure 4, the second support-type corner positioning structure 5, and the two-plate support positioning structure 6 are installed on the base 1; the support points of the first through-type corner positioning structure 2 and the second through-type corner positioning structure 3 are on a straight line, and the support points of the first support-type corner positioning structure 4 and the second support-type corner positioning structure 5 are on a straight line. The support points are on a straight line. The first through-type corner positioning structure 2 and the second through-type corner positioning structure 3 are used to support one side of the rear axle 11 in the automotive component. The first support-type corner positioning structure 4 and the second support-type corner positioning structure 5 are used to support the other side of the rear axle 11 in the automotive component. A disc support positioning structure 6 is located between the first through-type corner positioning structure 2 and the first support-type corner positioning structure 4. Another disc support positioning structure 6 is located between the second through-type corner positioning structure 3 and the second support-type corner positioning structure 5. One disc support positioning structure 6 supports and positions one brake disc 12 in the automotive component, and the other disc support positioning structure 6 supports and positions another brake disc 12 in the automotive component.

[0026] In this application, lateral guide posts 7 are provided next to both the first through-type corner positioning structure 2 and the second through-type corner positioning structure 3. At least four lateral guide posts 7 are provided, forming a U-shape, and they surround the rear axle 11 in the automotive component. When the rear axle 11 and brake disc 12 are suspended above the base 1, one side of the rear axle 11 is positioned next to the first through-type corner positioning structure 2 and the second through-type corner positioning structure 3. During this process, to enable the rear axle 11 to be quickly and accurately positioned at the first through-type corner positioning structure 2 and the second through-type corner positioning structure 3, the lateral guide posts 7 are designed. During the descent of the rear axle 11, one side of the rear axle 11 is in close contact with the lateral guide posts 7, thus allowing the rear axle 11 to be quickly moved to the position aligned with the first through-type corner positioning structure 2 and the second through-type corner positioning structure 3.

[0027] This application also includes a central support structure 8, which is located in the middle of the base 1 and supports the middle of the rear axle 11 in the automotive component. The central support structure 8 supports the middle of the rear axle 11, reducing the load on the first through-type corner positioning structure 2, the second through-type corner positioning structure 3, the first support-type corner positioning structure 4, and the second support-type corner positioning structure 5.

[0028] In this application, both the first through-type corner positioning structure 2 and the second through-type corner positioning structure 3 include: a through-type positioning seat 21 and a first rotary clamping mechanism 22. The through-type positioning seat 21 passes through a through hole on one side of the rear axle 11 and supports the rear axle 11. The first rotary clamping mechanism 22 is arranged next to the through-type positioning seat 21 and clamps the rear axle 11 near the through-type positioning seat 21. A through pin is formed on the top of the through-type positioning seat 21. The through pin passes through the through hole on one side of the rear axle 11 and also supports the rear axle 11. When the through-type positioning seat 21 supports the rear axle 11, the first rotary clamping mechanism 22 clamps the rear axle 11, thereby positioning and clamping one side of the rear axle 11.

[0029] Preferably, both the first through-hole corner positioning structure 2 and the second through-hole corner positioning structure 3 further include a first support column 23, which is located next to the through-hole positioning seat 21 and supports the rear axle 11. The first support column 23 forms one support point, and the through-hole positioning seat 21 forms another support point, so that there are two support points below the first rotary clamping mechanism 22, which improves the support stability and prevents the through-hole positioning seat 21 from being damaged by the first rotary clamping mechanism 22.

[0030] In this application, both the first supporting corner positioning structure 4 and the second supporting corner positioning structure 5 include: a second supporting column 41 and a second rotary clamping mechanism 42. The second supporting column 41 is mounted on the base 1 and supports the side of the rear axle 11 away from the first through-type corner positioning structure 2. The second rotary clamping mechanism 42 is provided next to the second supporting column 41 and is used to clamp the rear axle 11 near the second supporting column 41. The second supporting column 41 and the second rotary clamping mechanism 42 cooperate to clamp the side of the rear axle 11 away from the first supporting column 23. This achieves that all four corners of the rear axle 11 are clamped, and the rear axle 11 has good stability after being clamped, and the rear axle 11 is not easy to move relative to the base 1.

[0031] The first rotary clamping mechanism 22 and the second rotary clamping mechanism 42 mentioned above both include: a rotary clamping cylinder 221 and a clamping arm 222. The first end of the clamping arm 222 is used to clamp the rear axle 11, and the second end of the clamping arm 222 is fixed to the piston rod of the rotary clamping cylinder 221. The piston rod of the rotary clamping cylinder 221 can be extended or shortened pneumatically, and can also be driven to rotate pneumatically.

[0032] In this application, the disc support positioning structure 6 includes a support platform 61 and a side-adhering seat 62. The support platform 61 supports the middle of the brake disc 12 in the automotive component. The side-adhering seat 62 is installed on the side of the support platform 61 away from the center of the base 1. The side-adhering seat 62 supports the brake disc 12 in the automotive component and is also in close contact with the side of the brake disc 12 in the automotive component. The support platform 61 supports the brake disc 12, and the side-adhering seat 62 not only supports the brake disc 12 but also closely adheres to the brake disc 12, preventing the brake disc 12 from excessively rotating during adjustment.

[0033] In this application, the top surface of the support platform 61 is an inclined surface 610. The edge of the inclined surface 610 near the side of the seat 62 is higher than the edge of the inclined surface 610 near the center of the base 1. The inclined surface 610 has a guiding function to bring the brake disc 12 closer to the rear axle 11, preventing the brake disc 12 from disengaging from the rear axle 11 during adjustment.

[0034] like Figure 3 As shown, the vertical direction is the Y direction, the line connecting the first through-type corner positioning structure 2 and the second through-type corner positioning structure 3 is in the X direction, and the line connecting the first through-type corner positioning structure 2 and the first support-type corner positioning structure 4 is in the Z direction. Therefore, the toe angle is the angle between the plane containing the end face of the brake disc 12 and the Z direction, and the camber angle is the angle between the plane containing the end face of the brake disc 12 and the Y direction. The toe angle and camber angle are the standards for judging whether the manually adjustable brake disc 12 is accurately installed on the rear axle 11.

[0035] like Figure 4As shown, the toe angle is a and the camber angle is b. It can be seen that the three-point distance detection can detect the toe angle and camber angle of the brake disc 12, which can help adjust the position of the brake disc 12 on the rear axle 11, bringing great convenience to the debugging work.

[0036] The present invention also discloses a method for adjusting the brake disc 12 on the rear axle 11, the method for adjusting the brake disc 12 on the rear axle 11 is based on the rear axle 11 adjustment and positioning device as described above; The method for adjusting the brake disc 12 on the rear axle 11 includes the following steps: S1. Use the factory's suspension crane to suspend the rear axle 11 and brake disc 12, which are connected to each other by eccentric bolts, to the rear axle 11 adjustment and positioning device. S2. The rear axle 11 is positioned and clamped using the component positioning device, and the brake disc 12 is loosened and positioned by the component positioning device. S3. Manually adjust the eccentric bolts at the brake disc 12 and the rear axle 11. During the adjustment process, the detection-type auxiliary adjustment device simultaneously judges whether the position of the loosened brake disc 12 end face meets the requirements.

[0037] Step S2 includes the following steps: S21, bringing the rear axle 11 close to the first through-type corner positioning structure 2 and the second through-type corner positioning structure 3, and using the first through-type corner positioning structure 2 and the second through-type corner positioning structure 3 to accurately position the first side of the rear axle 11. At this time, the lateral guide post 7 is close to the first side of the rear axle 11, and the lateral guide post 7 can hold the first side of the rear axle 11, preventing the rear axle 11 from moving away from the first through-type corner positioning structure 2 and the second through-type corner positioning structure 3 under the suspension of the crane, thus achieving preliminary positioning of the first side of the rear axle 11, enabling the first side of the rear axle 11 to be positioned. The positions of the first through-type corner positioning structure 2 and the second through-type corner positioning structure 3 are quickly located; S22 ensures that the first side of the rear axle 11 is penetrated by the first through-type corner positioning structure 2 and the second through-type corner positioning structure 3, thereby achieving precise positioning of the first side of the rear axle 11; S23 uses the first support-type corner positioning structure 4 and the second support-type corner positioning structure 5 to position the other side of the rear axle 11, thereby locking the rear axle 11 and preventing the rear axle 11 from moving arbitrarily during subsequent adjustment of the brake disc 12, making it convenient to adjust the position of the brake disc 12 based on the rear axle 11. During the above positioning of the rear axle 11, the disc support positioning structure 6 supports the brake disc 12 and also has a certain pre-positioning effect on the brake disc 12 in the lateral direction. It is simply support and pre-positioning to facilitate subsequent adjustment of the position of the brake disc 12. During the adjustment process, it is necessary to adjust the toe angle and camber angle of the brake disc 12 relative to the rear axle 11. The adjustment is all done manually by adjusting the eccentric shaft at the connection between the brake disc 12 and the rear axle 11. By precisely positioning the rear axle 11 as described above, a reference point is provided for subsequent adjustment of the brake disc 12. With the reference position unchanged, it is easy to adjust the position of the brake disc 12 relative to the rear axle 11 to the required position, that is, toe angle and camber angle meet the standards.

[0038] When adjusting the relative position of the brake disc 12 on the rear axle 11 in step S3, it is necessary to simultaneously check the toe angle and camber angle of the brake disc 12 displayed on the screen, and adjust the brake disc 12 according to the displayed toe angle and camber angle. During the adjustment process in step S3, the inclined surface 610 on the support platform 61 supports the bottom of the brake disc 12, so that the brake disc 12 tends to tilt towards the connection between the brake disc 12 and the rear axle 11. When adjusting, the brake disc 12 rotates upward away from the inclined surface 610. The design of the inclined surface 610 has the function of reducing the tension at the connection between the disc and the rear axle 11, avoiding excessive tension that could cause the eccentric bolt at the connection between the brake disc 12 and the rear axle 11 to be adjusted, making the adjustment of the eccentric bolt less forceful and easier.

[0039] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A rear axle adjustment and positioning device, characterized in that, include: Base, detection-type auxiliary adjustment device, and component positioning device; A detection-type auxiliary adjustment device and a component positioning device are installed on the base. The component positioning device is used to lock the rear axle in the automotive parts and to loosen and position the brake disc connected to the rear axle. The component positioning device blocks the adjustment of the brake disc position on the rear axle. The detection-type auxiliary adjustment device is located next to the brake disc loosened and positioned by the component positioning device. The detection-type auxiliary adjustment device is used to detect whether the end face position of the brake disc loosened and positioned by the component positioning device meets the requirements.

2. The rear axle adjustment and positioning device according to claim 1, characterized in that, The component positioning device includes: a first through-type corner positioning structure, a second through-type corner positioning structure, a first support-type corner positioning structure, a second support-type corner positioning structure, and a two-plate support positioning structure; The base is equipped with a first through-type corner positioning structure, a second through-type corner positioning structure, a first support-type corner positioning structure, a second support-type corner positioning structure, and two disc support positioning structures. The support points of the first through-type corner positioning structure and the second through-type corner positioning structure are on a straight line. The support points of the first support corner positioning structure and the second support corner positioning structure are on a straight line. The first through-type corner positioning structure and the second through-type corner positioning structure are used to support one side of the rear axle in the automotive part. The first support corner positioning structure and the second support corner positioning structure are used to support the other side of the rear axle in the automotive part. One disc support and positioning structure is located between the first through-type corner positioning structure and the first support-type corner positioning structure, and the other disc support and positioning structure is located between the second through-type corner positioning structure and the second support-type corner positioning structure. One disc support and positioning structure supports and positions one brake disc in the automotive component, and the other disc support and positioning structure supports and positions another brake disc in the automotive component.

3. The rear axle adjustment and positioning device according to claim 2, characterized in that, Lateral guide pillars are provided next to both the first through-type corner positioning structure and the second through-type corner positioning structure. There are at least four lateral guide pillars, and all the lateral guide pillars form a U-shape, surrounding the rear axle of the vehicle component.

4. The rear axle adjustment and positioning device according to claim 3, characterized in that, A central support structure is provided in the middle of the base, which supports the middle of the rear axle in the automotive component.

5. The rear axle adjustment and positioning device according to claim 4, characterized in that, Both the first through-type corner positioning structure and the second through-type corner positioning structure include: a through-type positioning seat and a first rotary clamping mechanism. The through-type positioning seat passes through a through hole opened on one side of the rear axle and supports the rear axle. The first rotary clamping mechanism is provided next to the through-type positioning seat and clamps the rear axle near the through-type positioning seat.

6. The rear axle adjustment and positioning device according to claim 5, characterized in that, Both the first through-type corner positioning structure and the second through-type corner positioning structure further include: a first support column, which is located next to the through-type positioning seat and supports the rear axle.

7. The rear axle adjustment and positioning device according to claim 6, characterized in that, Both the first and second support-type corner positioning structures include: a second support column and a second rotary clamping mechanism. The second support column is mounted on the base and supports the rear axle on the side away from the first through-type corner positioning structure. A second rotary clamping mechanism is provided next to the second support column and is used to clamp the rear axle near the second support column.

8. The rear axle adjustment and positioning device according to claim 7, characterized in that, The disc support and positioning structure includes a support platform and a side-mounted seat. The support platform supports the center of the brake disc in the automotive part. A side-mounted seat is installed on the side of the support platform away from the center of the base. The side-mounted seat supports the brake disc in the automotive part and is also in close contact with the side of the brake disc in the automotive part.

9. The rear axle adjustment and positioning device according to claim 8, characterized in that, The top surface of the support platform is inclined, and the edge of the inclined surface near the side of the base is higher than the edge of the inclined surface near the center of the base.

10. A method for adjusting the brake disc on the rear axle, characterized in that, The method for adjusting the brake disc on the rear axle is based on the rear axle adjustment and positioning device as described in any one of claims 1 to 9; The method for adjusting the rear axle brake disc includes the following steps: S1. Use the factory-installed crane to suspend the rear axle and brake disc, which are connected to each other by eccentric bolts, to the rear axle adjustment and positioning equipment. S2. The rear axle is positioned and clamped using a component positioning device, and the brake disc is loosened and positioned by the component positioning device. S3. Manually adjust the eccentric bolts between the brake disc and the rear axle. During the adjustment process, the detection-type auxiliary adjustment device simultaneously determines whether the position of the loosened brake disc end face meets the requirements.

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