A four-wheel alignment and adjustment device for automobile rear suspension

Abstract

The four-wheel alignment adjustment device for the rear suspension of an automobile provided by this invention includes a bracket, a positioning component, and an adjustment component. The positioning component is mounted on the bracket and connected to the adjustment component. The adjustment component is connected to the vehicle brake, and the vehicle brake is connected to the vehicle rear suspension. The positioning component enables positioning between the vehicle brake and the vehicle rear suspension, facilitating the assembly process of the vehicle rear suspension. The adjustment component can pre-adjust the toe and camber parameters of the vehicle rear suspension, thereby avoiding the problem of excessively high failure rates after the vehicle rolls off the production line. This effectively reduces the frequency of four-wheel alignment adjustments, effectively reduces the overall vehicle production time, and improves the overall vehicle production quality.

Description

Technical Field

[0001] This invention belongs to the field of automotive suspension assembly, specifically, this invention relates to a four-wheel alignment and adjustment device for automotive rear suspension. Background Technology

[0002] In the assembly and manufacturing of automotive rear suspensions, because the toe and camber parameters of the rear suspension are not initially constrained and adjusted during the sub-assembly, the four-wheel alignment parameters of most vehicles fail the test after they roll off the production line. This significantly increases the frequency of four-wheel alignment adjustments for production vehicles, severely impacting overall vehicle production time. Current rear suspension sub-assembly techniques typically rely on tooling positioning, which only allows for the positioning of structural components and cannot pre-adjust the toe and camber parameters. Furthermore, with the wear and tear from frequent tooling use, failure to replace the tooling in a timely manner can lead to severe drift in the four-wheel parameters.

[0003] Therefore, there is an urgent need in this field for a pre-adjustment device that can position structural components and pre-adjust toe and camber parameters during the rear suspension assembly process. This device can improve the pass rate of four-wheel alignment inspection, reduce the frequency of four-wheel alignment adjustment, reduce vehicle production time, and improve vehicle production quality. Summary of the Invention

[0004] This invention addresses the aforementioned problems and aims to provide a rear suspension four-wheel alignment adjustment device for automobiles. This device is capable of positioning structural components, pre-adjusting toe-in and camber parameters, improving the pass rate of four-wheel alignment testing, reducing the frequency of four-wheel alignment adjustments, decreasing vehicle production time, and improving overall vehicle quality. To achieve these objectives, the technical solution adopted by this invention is as follows:

[0005] The present invention provides a four-wheel alignment and adjustment device for a car rear suspension, which includes a bracket, a positioning component, and an adjustment component. The positioning component is mounted on the bracket, the positioning component is connected to the adjustment component, and the adjustment component is connected to the car brake.

[0006] The four-wheel alignment and adjustment device for the rear suspension of an automobile provided by the present invention may also have the following features: the positioning component includes a vertical moving unit and a horizontal moving unit; the vertical moving unit includes a first lead screw and a first slide block; the first slide block is adapted to the first lead screw and is movably disposed on the first lead screw; the end of the first lead screw is connected to a bracket; the horizontal moving unit includes a second lead screw and a second slide block; the end of the second lead screw is connected to the first slide block; the second slide block is movably disposed on the second lead screw.

[0007] The four-wheel alignment adjustment device for the rear suspension of an automobile provided by the present invention may also have the following feature: the adjustment component includes a housing and an adjustment unit disposed within the housing, the adjustment unit being movably disposed within the housing, and the housing being connected to a second slide block.

[0008] The four-wheel alignment adjustment device for the rear suspension of an automobile provided by the present invention may also have the following features: the adjustment unit includes an inner housing, a drive motor, an adjustment slide, and an adjustment screw. The adjustment screw is movably inserted into the inner housing, the adjustment slide is movably sleeved on the adjustment screw, the drive motor is mounted on the inner housing, and the drive motor is connected to the adjustment slide.

[0009] The four-wheel alignment adjustment device for the rear suspension of an automobile provided by the present invention may also have the following feature: the adjustment unit further includes an extension housing, which is disposed on the inner housing, and the adjustment screw passes through the extension housing.

[0010] The four-wheel alignment adjustment device for the rear suspension of an automobile provided by the present invention may also have the following features: a first fixed seat and a second fixed seat are sleeved on the adjusting screw, the first fixed seat is connected to the inner shell, and the second fixed seat is connected to the extension shell.

[0011] The four-wheel alignment adjustment device for the rear suspension of an automobile provided by the present invention may also have the following feature: the end of the adjusting screw away from the inner housing is connected to the automobile brake, the automobile brake includes a brake disc and a steering knuckle connected to the brake disc, the steering knuckle is connected to the rear suspension of the automobile, and a locking structure is provided between the adjusting screw and the brake disc.

[0012] The four-wheel alignment and adjustment device for the rear suspension of an automobile provided by the present invention may also have the following features: the brake disc is provided with a guide cone surface, the locking structure includes a locking groove, a hydraulic block and a locking protrusion provided on the guide cone surface, the hydraulic block is provided with a hydraulic chamber, and the locking protrusion is movably provided in the hydraulic chamber.

[0013] The four-wheel alignment and adjustment device for the rear suspension of an automobile provided by the present invention may also have the following feature: a rebound spring is provided in the hydraulic chamber, one side of the rebound spring is connected to the hydraulic block, and the other side of the rebound spring is connected to the locking protrusion.

[0014] The four-wheel alignment and adjustment device for the rear suspension of an automobile provided by the present invention may also have the following feature: an camber adjustment rod and a toe adjustment rod are provided between the steering knuckle and the rear suspension.

[0015] The technical effects of this invention are as follows: The four-wheel alignment adjustment device for the rear suspension of an automobile provided by this invention includes a bracket, a positioning component, and an adjustment component. The positioning component is mounted on the bracket and connected to the adjustment component. The adjustment component is connected to the automobile brake, and the automobile brake is connected to the automobile rear suspension. The positioning component can realize the positioning between the automobile brake and the automobile rear suspension, which facilitates the assembly process of the automobile rear suspension. The adjustment component can pre-adjust the toe and camber parameters of the automobile rear suspension, thereby avoiding the problem of excessively high failure rate after the vehicle rolls off the production line. This effectively reduces the frequency of four-wheel alignment adjustment, effectively reduces the overall vehicle production time, and improves the overall vehicle production quality.

[0016] Therefore, the four-wheel alignment adjustment device for the rear suspension of automobiles provided by the present invention can position structural components, pre-adjust the toe and camber parameters of the rear suspension of automobiles, improve the pass rate of four-wheel alignment inspection of the whole vehicle, reduce the frequency of four-wheel alignment adjustment, reduce the production time of the whole vehicle, and improve the production quality of the whole vehicle. Attached Figure Description

[0017] This manual includes the following figures, which illustrate the following:

[0018] Figure 1 This is a schematic diagram of the structure of the four-wheel alignment and adjustment device for the rear suspension of an automobile in an embodiment of the present invention;

[0019] Figure 2 This is a cross-sectional view of the adjustment unit in an embodiment of the present invention;

[0020] Figure 3 This is a schematic diagram of the connection between the adjustment unit and the brake disc in an embodiment of the present invention;

[0021] Figure 4 This is a partial cross-sectional view of the brake disc in an embodiment of the present invention;

[0022] Figure 5 This is a schematic diagram of the structure of the automobile brake and the automobile rear suspension in an embodiment of the present invention.

[0023] The components in the diagram are labeled as follows: 1-Automotive brake, 2-Automotive rear suspension, 3-Brake disc, 4-Steering knuckle, 5-Guide cone surface, 6-Camber adjustment rod, 7-Toe adjustment rod, 10-Bracket, 20-Positioning assembly, 21-Vertical movement unit, 211-First lead screw, 212-First slide block, 22-Horizontal movement unit, 221-Second lead screw, 222-Second slide block, 30-Adjustment assembly, 31-Outer shell, 32-Adjustment unit, 321-Inner shell, 322-Drive motor, 323-Adjustment slide block, 324-Adjustment lead screw, 325-Extension shell, 326-First fixed seat, 327-Second fixed seat, 40-Locking structure, 41-Locking groove, 42-Hydraulic block, 421-Hydraulic chamber, 43-Locking protrusion, 44-Rebound spring. Detailed Implementation

[0024] The specific embodiments of the present invention will be further described in detail below with reference to the accompanying drawings, in order to help those skilled in the art to have a more complete, accurate and in-depth understanding of the inventive concept and technical solution of the present invention, and to facilitate its implementation.

[0025] Figure 1 This is a schematic diagram of the structure of the four-wheel alignment and adjustment device for the rear suspension of an automobile in an embodiment of the present invention.

[0026] like Figure 1 As shown, the four-wheel alignment adjustment device for the rear suspension of an automobile provided by the present invention includes a bracket 10, a positioning component 20, and an adjustment component 30. The positioning component 20 is mounted on the bracket 10 and is connected to the adjustment component 30. The adjustment component 30 is connected to the automobile brake 1, and the automobile brake 1 is connected to the automobile rear suspension 2. The positioning component 20 can realize the positioning between the automobile brake 1 and the automobile rear suspension 2, which facilitates the assembly process of the automobile rear suspension 2. The adjustment component 30 can pre-adjust the toe and camber parameters of the automobile rear suspension 2, thereby avoiding the problem of excessively high failure rate after the vehicle is off the production line, effectively reducing the frequency of four-wheel alignment adjustment, effectively reducing the production time of the whole vehicle, and improving the overall production quality of the vehicle.

[0027] like Figure 1As shown, the positioning assembly 20 includes a vertical moving unit 21 and a horizontal moving unit 22. The vertical moving unit 21 includes a first lead screw 211 and a first slide block 212. The first slide block 212 is adapted to the first lead screw 211 and is slidably mounted on the first lead screw 211 through a threaded engagement. The end of the first lead screw 211 is connected to the bracket 10. The two first lead screws 211 are arranged parallel to each other, and each of the two first lead screws 211 is provided with a first slide block 212, which improves the reliability of the structure and enhances the load-bearing capacity and stability of the positioning assembly 20. The horizontal moving unit 22 includes a second lead screw 221 and a second slide block 222. The end of the second lead screw 221 is connected to the first slide block 212, and both ends of the second lead screw 221 are respectively connected to the two first slide blocks 212. The second slide block 222 is slidably mounted on the second lead screw 221 through a threaded engagement. The second slide block 221 is connected to the adjusting assembly 30. The first slide block 212 can drive the horizontal moving unit 22 to move up and down in the vertical direction, and the second slide block 222 can drive the adjusting assembly 30 to move horizontally in the horizontal direction. This allows the positioning assembly 20 to drive the adjusting assembly 30 to move up and down in the vertical direction and move horizontally in the horizontal direction, thereby realizing the positioning between the car brake 1 and the car rear suspension 2 on the adjusting assembly 30, which facilitates the disassembly process of the car rear suspension 2.

[0028] The adjustment assembly 30 includes a housing 31 and an adjustment unit 32 disposed within the housing 31. The adjustment unit 32 is movably disposed within the housing 31, and the housing 31 is connected to the second slide block 222.

[0029] Figure 2 This is a cross-sectional view of the adjustment unit in an embodiment of the present invention.

[0030] like Figure 2 As shown, the adjustment unit 32 includes an inner housing 321, a drive motor 322, an adjustment slide 323, and an adjustment screw 324. The inner housing 321 is disposed inside the outer housing 31. The adjustment screw 324 is movably disposed inside the inner housing 321. The adjustment slide 323 is rotatably disposed on the adjustment screw 324 through a threaded engagement. The drive motor 322 is disposed on the inner wall of the inner housing 321. The motor shaft of the drive motor 322 is connected to the adjustment slide 323 through a belt drive. The drive motor 322 can drive the adjustment slide 323 to rotate, thereby driving the adjustment screw 324 to perform telescopic movement. The end of the adjustment screw 324 away from the inner housing 321 is connected to the vehicle brake 1, so that the adjustment screw 324 can drive the vehicle brake 1 to move, thereby adjusting the position and attitude of the vehicle brake 1 relative to the rear suspension 2 of the vehicle, and pre-adjusting the toe and camber parameters of the rear suspension 2 of the vehicle.

[0031] The adjustment unit 32 also includes an extension housing 325, which is disposed on the inner housing 321. The adjustment screw 324 passes through the extension housing 325. A first fixing seat 326 and a second fixing seat 327 are sleeved on the adjustment screw 324. The first fixing seat 326 is connected to the inner wall of the inner housing 321 and is located on one side of the adjustment slide 323. The second fixing seat 327 is connected to the inner wall of the extension housing 325. The first fixing seat 326 and the second fixing seat 327 can support the adjustment screw 324, thereby improving the stability of the adjustment screw 324 during extension and retraction, improving the accuracy of the pre-adjustment process of the toe and camber parameters of the rear suspension 2 of the vehicle, and improving the reliability of the structure.

[0032] Figure 3 This is a schematic diagram of the connection between the adjustment unit and the brake disc in an embodiment of the present invention.

[0033] like Figure 3 As shown, the car brake 1 includes a brake disc 3 and a steering knuckle 4 connected to the brake disc 3. The steering knuckle 4 is connected to the rear suspension 2 of the car. Multiple adjustment units 32 are connected to the brake disc 3. The outer shell 31 is provided with multiple through holes that are adapted to the extension shell 325, so that the adjustment screws 324 of the adjustment units 32 can pass through the outer shell 31 and connect to the brake disc 3. In this embodiment, eight adjustment units 32 are evenly distributed in the outer shell 31. The eight adjustment units 32 are independent of each other and do not interfere with each other, which improves the flexibility of the adjustment assembly 30 and improves the adjustment accuracy. The adjustment screws 324 of the eight adjustment units 32 are connected to the brake disc 3, so that the adjustment assembly 30 can flexibly adjust the position and attitude of the car brake 1, thereby pre-adjusting the toe and camber parameters of the rear suspension 2 of the car.

[0034] Figure 4 This is a partial cross-sectional view of the brake disc in an embodiment of the present invention;

[0035] like Figure 4As shown, the end of the adjusting screw 324 away from the inner housing 321 is connected to the brake disc 3 of the automobile brake 1. A locking structure 40 is provided between the adjusting screw 324 and the brake disc 3. The brake disc 3 is provided with a guide cone surface 5. The locking structure 40 includes a locking groove 41, a hydraulic block 42, and a locking protrusion 43 provided on the guide cone surface 5. The hydraulic block 42 is provided with a hydraulic chamber 421. The locking protrusion 43 is movably disposed in the hydraulic chamber 421 and can transmit pressure through the hydraulic chamber 421 to pop out the locking protrusion 43. The locking protrusion 43 is adapted to the locking groove 41 and is locked in the locking groove 41. The guide cone surface 5 on the brake disc 3 is uniformly provided with locking grooves 41. The eight locking grooves 41 are adapted to the eight locking protrusions 43 on the eight hydraulic blocks 42 respectively, thereby connecting the eight adjusting units 32 to the brake disc 3, improving the flexibility and controllability of the adjustment process of the brake disc 3. The locking groove 41 is located on the outer side of the guide cone surface 5. The eight locking grooves 41 are evenly distributed on the guide cone surface 5. The locking protrusion 43 is located on the hydraulic block 42 on the side close to the guide cone surface 5, so that the eight sets of locking structures 40 can work together to clamp the brake disc 3, which improves the reliability of the structure and ensures the stability during the adjustment process.

[0036] A rebound spring 44 is provided in the hydraulic chamber 421. One side of the rebound spring 44 is connected to the hydraulic block 42, and the other side of the rebound spring 44 is connected to the locking protrusion 43. When the pressure is transmitted through the hydraulic chamber 421 to pop out the locking protrusion 43, the rebound spring 44 is in a stretched state. This allows the hydraulic pressure to be released after the four-wheel adjustment is completed, and the rebound spring 44 can drive the locking protrusion 43 to rebound and exit the locking groove 41, so that the adjustment unit 32 is separated from the brake disc 3 for easy operation.

[0037] Figure 5 This is a schematic diagram of the structure of the automobile brake and the automobile rear suspension in an embodiment of the present invention.

[0038] like Figure 5 As shown, a camber adjustment rod 6 and a toe adjustment rod 7 are provided between the steering knuckle 4 and the rear suspension 2 of the vehicle. The two ends of the camber adjustment rod 6 are connected to the steering knuckle 4 and the rear suspension 2 of the vehicle respectively by bolts. The two ends of the toe adjustment rod 7 are connected to the steering knuckle 4 and the rear suspension 2 of the vehicle respectively by bolts.

[0039] During the assembly of the rear suspension of a car, the four-wheel alignment and adjustment device for the rear suspension provided by this invention connects the car brake 1 to the adjustment assembly 30 through the locking structure 40. Eight sets of adjustment units 32 are evenly arranged and connected to the brake disc 3. The vertical moving unit 21 and the horizontal moving unit 22 drive the car brake 1 to move up and down in the vertical direction and to move horizontally in the horizontal direction, thereby completing the positioning between the car brake 1 and the rear suspension 2 of the car, which facilitates the assembly process. Then, through the extension and retraction of the adjusting screws 324 of the eight adjusting units 32, the adjusting screws 324 can extend and retract individually or in combination, which can more flexibly drive the brake disc 3 to move, causing the brake disc 3 to tilt, changing the size of the toe angle and camber angle, so that the toe angle and camber angle meet the production standards, and completing the adjustment of the four-wheel parameters of the rear suspension 2 of the car. Tighten the bolts at both ends of the camber adjusting rod 6 and the bolts at both ends of the toe adjusting rod 7, thereby completing the pre-adjustment of the four-wheel parameters of the rear suspension 2 of the car. This effectively avoids the problem of excessively high failure rate after the vehicle rolls off the production line, effectively reduces the frequency of four-wheel alignment adjustment, effectively reduces the overall vehicle production time, and improves the overall vehicle production quality.

[0040] The role and effect of the embodiments

[0041] The four-wheel alignment adjustment device for the rear suspension of an automobile provided by the present invention includes a bracket 10, a positioning component 20, and an adjustment component 30. The positioning component 20 is mounted on the bracket 10 and is connected to the adjustment component 30. The adjustment component 30 is connected to the automobile brake 1, and the automobile brake 1 is connected to the automobile rear suspension 2. The positioning component 20 can realize the positioning between the automobile brake 1 and the automobile rear suspension 2, which facilitates the assembly process of the automobile rear suspension 2. The adjustment component 30 can pre-adjust the toe and camber parameters of the automobile rear suspension 2, thereby avoiding the problem of excessively high failure rate after the vehicle is off the production line, effectively reducing the frequency of four-wheel alignment adjustment, effectively reducing the production time of the whole vehicle, and improving the overall production quality of the vehicle. During the assembly of the rear suspension of a car, the four-wheel alignment and adjustment device for the rear suspension provided by this invention connects the car brake 1 to the adjustment assembly 30 through the locking structure 40. Eight sets of adjustment units 32 are evenly arranged and connected to the brake disc 3. The vertical moving unit 21 and the horizontal moving unit 22 drive the car brake 1 to move up and down in the vertical direction and to move horizontally in the horizontal direction, thereby completing the positioning between the car brake 1 and the rear suspension 2 of the car, which facilitates the assembly process. Then, through the extension and retraction of the adjusting screws 324 of the eight adjusting units 32, the adjusting screws 324 can extend and retract individually or in combination, which can more flexibly drive the brake disc 3 to move, causing the brake disc 3 to tilt, changing the size of the toe angle and camber angle, so that the toe angle and camber angle meet the production standards, and completing the adjustment of the four-wheel parameters of the rear suspension 2 of the car. Tighten the bolts at both ends of the camber adjusting rod 6 and the bolts at both ends of the toe adjusting rod 7, thereby completing the pre-adjustment of the four-wheel parameters of the rear suspension 2 of the car. This effectively avoids the problem of excessively high failure rate after the vehicle rolls off the production line, effectively reduces the frequency of four-wheel alignment adjustment, effectively reduces the overall vehicle production time, and improves the overall vehicle production quality.

[0042] Therefore, the four-wheel alignment adjustment device for the rear suspension of automobiles provided by the present invention can position structural components, pre-adjust the toe and camber parameters of the rear suspension of automobiles, improve the pass rate of four-wheel alignment inspection of the whole vehicle, reduce the frequency of four-wheel alignment adjustment, reduce the production time of the whole vehicle, and improve the production quality of the whole vehicle.

[0043] The present invention has been described above by way of example with reference to the accompanying drawings. Obviously, the specific implementation of the present invention is not limited to the above-described manner. Any non-substantial improvements made using the inventive concept and technical solution; or the direct application of the inventive concept and technical solution to other situations without modification, are all within the protection scope of the present invention.

Claims

1. A four-wheel alignment and adjustment device for a car rear suspension, characterized in that, The system includes a bracket (10), a positioning component (20), and an adjustment component (30). The positioning component (20) is mounted on the bracket (10) and connected to the adjustment component (30). The adjustment component (30) is connected to the vehicle brake (1). The adjustment component (30) includes a housing (31) and an adjustment unit (32) disposed within the housing (31). The adjustment unit (32) is movably disposed within the housing (31). The housing (31) is connected to the positioning component (20). The adjustment unit (32) includes an inner housing (321), a drive motor (322), an adjustment slide (323), and an adjustment screw (324). The adjustment screw (324) is movably inserted within the inner housing (321). The adjustment slide (323)... The adjustment screw (324) is movably mounted on the adjustment screw (324). The drive motor (322) is mounted on the inner housing (321). The drive motor (322) is connected to the adjustment slide (323). The end of the adjustment screw (324) away from the inner housing (321) is connected to the car brake (1). The car brake (1) includes a brake disc (3) and a steering knuckle (4) connected to the brake disc (3). The steering knuckle (4) is connected to the rear suspension (2) of the car. A locking structure (40) is provided between the adjustment screw (324) and the brake disc (3). Eight sets of adjustment units (32) are evenly arranged. Through the extension and retraction movement of the adjustment screw (324) of the eight sets of adjustment units (32), the adjustment screw (324) can extend and retract individually or move in coordination, so as to drive the brake disc (3) to move more flexibly.

2. The four-wheel alignment and adjustment device for the rear suspension of an automobile according to claim 1, characterized in that, The positioning component (20) includes a vertical moving unit (21) and a horizontal moving unit (22). The vertical moving unit (21) includes a first lead screw (211) and a first slide block (212). The first slide block (212) is adapted to the first lead screw (211) and is movably mounted on the first lead screw (211). The end of the first lead screw (211) is connected to the bracket (10). The horizontal moving unit (22) includes a second lead screw (221) and a second slide block (222). The end of the second lead screw (221) is connected to the first slide block (212), and the second slide block (222) is movably mounted on the second lead screw (221).

3. The four-wheel alignment and adjustment device for the rear suspension of an automobile according to claim 2, characterized in that, The adjustment unit (32) further includes an extension housing (325), which is disposed on the inner housing (321), and the adjustment screw (324) passes through the extension housing (325).

4. The four-wheel alignment and adjustment device for the rear suspension of an automobile according to claim 3, characterized in that, The adjusting screw (324) is fitted with a first fixed seat (326) and a second fixed seat (327). The first fixed seat (326) is connected to the inner shell (321), and the second fixed seat (327) is connected to the extension shell (325).

5. The four-wheel alignment and adjustment device for the rear suspension of an automobile according to claim 4, characterized in that, The brake disc (3) is provided with a guide cone surface (5), and the locking structure (40) includes a locking groove (41), a hydraulic block (42) and a locking protrusion (43) provided on the guide cone surface (5). The hydraulic block (42) is provided with a hydraulic chamber (421), and the locking protrusion (43) is movably provided in the hydraulic chamber (421).

6. The four-wheel alignment and adjustment device for the rear suspension of an automobile according to claim 5, characterized in that, The hydraulic chamber (421) is provided with a rebound spring (44), one side of which is connected to the hydraulic block (42), and the other side of which is connected to the locking protrusion (43).

7. The four-wheel alignment and adjustment device for the rear suspension of an automobile according to claim 6, characterized in that, An camber adjustment rod (6) and a toe adjustment rod (7) are provided between the steering knuckle (4) and the rear suspension (2) of the vehicle.

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