Four-wheel positioning and adjusting device for automobile rear suspension

Abstract

The automobile rear suspension four-wheel positioning and adjusting device comprises a support, a positioning assembly and an adjusting assembly, the positioning assembly is arranged on the support and connected with the adjusting assembly, the adjusting assembly is connected with an automobile brake, and the automobile brake is connected with an automobile rear suspension. The positioning assembly can achieve positioning between the automobile brake and the automobile rear suspension, the split charging process of the automobile rear suspension is facilitated, the adjusting assembly can pre-adjust toe-in and camber parameters of the automobile rear suspension, and therefore the problem that the detection reject ratio is too high after an automobile is off the line is solved, the four-wheel positioning adjusting frequency is effectively reduced, and the production efficiency is improved. The production time of the whole vehicle is effectively shortened, and the production quality of the whole vehicle is improved.

Description

Technical Field

[0001] The invention belongs to the field of automobile suspension assembly, and in particular relates to a four-wheel alignment adjustment device for an automobile rear suspension. Background Art

[0002] In the assembly and manufacturing of the rear suspension of the automobile, since the toe and camber parameters of the rear suspension are not initially constrained and adjusted during the subassembly of the rear suspension, most of the four-wheel alignment parameter tests after the vehicle rolls off the assembly line are unqualified, which greatly increases the frequency of four-wheel alignment adjustment of production vehicles and seriously affects the production hours of the whole vehicle. The subassembly of the rear suspension in the existing technology is generally performed through tooling positioning, which can only realize the positioning of the structural parts, and cannot pre-adjust the toe and camber parameters of the rear suspension. In addition, with the wear caused by the frequent use of the tooling, if the tooling is not replaced in time, it will also cause serious drift of the four-wheel parameters.

[0003] Therefore, there is an urgent need in this field for a pre-adjustment device that can realize the positioning of structural parts and pre-adjustment of toe and camber parameters during the rear suspension assembly process, which can improve the inspection pass rate of the four-wheel alignment of the whole vehicle, reduce the adjustment frequency of the four-wheel alignment, reduce the production hours of the whole vehicle, and improve the production quality of the whole vehicle. Summary of the invention

[0004] The present invention is made to solve the above problems, and aims to provide a rear suspension four-wheel alignment adjustment device for automobiles, which can position structural parts, pre-adjust toe and camber parameters, improve the pass rate of four-wheel alignment detection of the whole vehicle, reduce the frequency of four-wheel alignment adjustment, reduce the production hours of the whole vehicle, and improve the production quality of the whole vehicle. In order to achieve the above purposes, the technical solutions adopted by the present invention are:

[0005] The invention provides a four-wheel alignment and adjustment device for a rear suspension of an automobile, which has the following characteristics: it comprises a bracket, a positioning component and an adjustment component, wherein the positioning component is arranged on the bracket, the positioning component is connected to the adjustment component, and the adjustment component is connected to the automobile brake.

[0006] In the automobile rear suspension four-wheel alignment and adjustment device provided by the present invention, it can also have such a feature that the positioning component includes a vertical moving unit and a horizontal moving unit, the vertical moving unit includes a first screw rod and a first slide seat, the first slide seat is adapted to the first screw rod, the first slide seat is movably arranged on the first screw rod, and the end of the first screw rod is connected to the bracket; the horizontal moving unit includes a second screw rod and a second slide seat, the end of the second screw rod is connected to the first slide seat, and the second slide seat is movably arranged on the second screw rod.

[0007] The automobile rear suspension four-wheel alignment adjustment device provided by the present invention may also have such a feature that the adjustment component includes an outer shell and an adjustment unit arranged in the outer shell, the adjustment unit is movably arranged in the outer shell, and the outer shell is connected to the second slide seat.

[0008] In the automobile rear suspension four-wheel alignment adjustment device provided by the present invention, it can also have such a feature that the adjustment unit includes an inner shell, a drive motor, an adjustment slide and an adjustment screw, the adjustment screw can be movably inserted into the inner shell, the adjustment slide can be movably mounted on the adjustment screw, the drive motor is arranged on the inner shell, and the drive motor is connected to the adjustment slide.

[0009] The automobile rear suspension four-wheel alignment adjustment device provided by the present invention may also have such a feature that the adjustment unit further includes an extension shell, the extension shell is arranged on the inner shell, and the adjustment screw rod is inserted into the extension shell.

[0010] The automobile rear suspension four-wheel alignment adjustment device provided by the present invention may also have such a feature that a first fixing seat and a second fixing seat are sleeved on the adjusting screw rod, the first fixing seat is connected to the inner shell, and the second fixing seat is connected to the extension shell.

[0011] The automobile rear suspension four-wheel alignment adjustment device provided by the present invention may also have the following feature: one end of the adjusting screw rod away from the inner shell 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 automobile rear suspension, and a locking structure is provided between the adjusting screw rod and the brake disc.

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

[0013] The automobile rear suspension four-wheel alignment adjustment device provided by the present invention may also have such a feature that 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 automobile rear suspension four-wheel alignment adjustment device provided by the present invention may also have such a feature that a camber adjustment rod and a toe adjustment rod are provided between the steering knuckle and the rear suspension.

[0015] The technical effect of the present invention is as follows: the four-wheel alignment and adjustment device for the automobile rear suspension provided by the present invention includes a bracket, a positioning component and an adjustment component, the positioning component is arranged on the bracket, the positioning component is connected to the adjustment component, the adjustment component is connected to the automobile brake, 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, and 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 too high detection failure rate after the vehicle is off the production line, effectively reducing the frequency of four-wheel alignment adjustment, effectively reducing the production hours of the whole vehicle, and improving the production quality of the whole vehicle.

[0016] Therefore, the automobile rear suspension four-wheel alignment adjustment device provided by the present invention can position the structural parts, can pre-adjust the toe-in and camber parameters of the automobile rear suspension, improve the pass rate of the four-wheel alignment detection of the whole vehicle, reduce the frequency of four-wheel alignment adjustment, reduce the production hours of the whole vehicle, and improve the production quality of the whole vehicle. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] This specification includes the following drawings, which show the following contents:

[0018] Figure 1 2 is a schematic structural diagram of a four-wheel alignment adjustment device for a rear suspension of an automobile in an embodiment of the present invention;

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

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

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

[0022] Figure 5 It is a schematic structural diagram of a vehicle brake and a rear suspension of a vehicle in an embodiment of the present invention.

[0023] Marked in the figure: 1-automobile brake, 2-automobile rear suspension, 3-brake disc, 4-steering knuckle, 5-guide cone, 6-camber adjustment rod, 7-toe adjustment rod, 10-bracket, 20-positioning assembly, 21-vertical moving unit, 211-first screw rod, 212-first slide, 22-horizontal moving unit, 221-second screw rod, 222-second slide, 30-adjustment assembly, 31-outer shell, 32-adjustment unit, 321-inner shell, 322-drive motor, 323-adjustment slide, 324-adjustment screw rod, 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 DESCRIPTION

[0024] The specific implementation methods of the present invention are further explained in detail below by describing the embodiments with reference to the accompanying drawings, with the aim of helping 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 facilitating their implementation.

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

[0026] like Figure 1 As shown, the four-wheel alignment and adjustment device for the automobile rear suspension provided by the present invention includes a bracket 10, a positioning component 20 and an adjusting component 30. The positioning component 20 is arranged on the bracket 10, the positioning component 20 is connected to the adjusting component 30, the adjusting 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 is convenient for the subassembly process of the automobile rear suspension 2. The adjusting component 30 can pre-adjust the toe-in and camber parameters of the automobile rear suspension 2, so as to avoid the problem of too high detection failure rate after the vehicle is off the line, effectively reduce the frequency of four-wheel alignment adjustment, effectively reduce the production hours of the whole vehicle, and improve the production quality of the whole 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 screw rod 211 and a first slide 212. The first slide 212 is adapted to the first screw rod 211. The first slide 212 is slidably arranged on the first screw rod 211 through threaded cooperation. The end of the first screw rod 211 is connected to the bracket 10. The two first screw rods 211 are arranged parallel to each other. The first slide 212 is provided on the two first screw rods 211, which improves the reliability of the structure and improves the bearing capacity and stability of the positioning assembly 20. The horizontal moving unit 22 includes a second screw rod 221 and a second slide 222. The end of the second screw rod 221 is connected to the first slide 212. The two ends of the second screw rod 221 are respectively connected to the two first slides 212. The second slide 222 is slidably arranged on the second screw rod 221 through threaded cooperation. The second slide 221 is connected to the adjusting component 30. The first slide 212 can drive the horizontal moving unit 22 to perform lifting movement in the vertical direction. The second slide 222 can drive the adjusting component 30 to perform horizontal movement in the horizontal direction, so that the positioning component 20 can drive the adjusting component 30 to perform lifting movement in the vertical direction and horizontal movement in the horizontal direction, thereby realizing the positioning between the automobile brake 1 on the adjusting component 30 and the automobile rear suspension 2, which is convenient for the assembly process of the automobile rear suspension 2.

[0028] The adjustment assembly 30 includes an outer shell 31 and an adjustment unit 32 disposed in the outer shell 31 . The adjustment unit 32 is movably disposed in the outer shell 31 . The outer shell 31 is connected to the second slide seat 222 .

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

[0030] like Figure 2 As shown, the adjustment unit 32 includes an inner shell 321, a drive motor 322, an adjustment slide 323 and an adjustment screw 324. The inner shell 321 is arranged in the outer shell 31, the adjustment screw 324 can be movably inserted in the inner shell 321, the adjustment slide 323 is rotatably arranged on the adjustment screw 324 through threaded cooperation, the drive motor 322 is arranged on the inner wall of the inner shell 321, the motor shaft of the drive motor 322 is connected to the adjustment slide 323 through a belt transmission, the drive motor 322 can drive the adjustment slide 323 to rotate, thereby driving the adjustment screw 324 to perform telescopic movement, and the end of the adjustment screw 324 away from the inner shell 321 is connected to the automobile brake 1, so that the adjustment screw 324 can drive the automobile brake 1 to move, can adjust the position and posture of the automobile brake 1 relative to the automobile rear suspension 2, and can pre-adjust the toe and camber parameters of the automobile rear suspension 2.

[0031] The adjustment unit 32 also includes an extension shell 325, which is arranged on the inner shell 321. The adjustment screw 324 is inserted into the extension shell 325. The adjustment screw 324 is sleeved with a first fixing seat 326 and a second fixing seat 327. The first fixing seat 326 is connected to the inner wall of the inner shell 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 shell 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 during the pre-adjustment process of the toe and camber parameters of the rear suspension 2 of the automobile, and improving the reliability of the structure.

[0032] Figure 3 It is a schematic structural 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 automobile 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 automobile rear suspension 2, a plurality of adjustment units 32 are connected to the brake disc 3, and an outer shell 31 is provided with a plurality of through holes adapted to the extension shell 325, so that the adjustment screw 324 of the adjustment unit 32 can pass through the outer shell 31 and be connected to the brake disc 3. In this embodiment, eight adjustment units 32 are evenly distributed in the outer shell 31, and the eight adjustment units 32 are independent of each other and do not interfere with each other, thereby improving the flexibility of the adjustment component 30 and improving the adjustment accuracy. The adjustment screw 324 of the eight adjustment units 32 is connected to the brake disc 3, so that the adjustment component 30 can flexibly adjust the position and posture of the automobile brake 1, thereby pre-adjusting the toe and camber parameters of the automobile rear suspension 2.

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

[0035] like Figure 4As shown, one end of the adjusting screw rod 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 rod 324 and the brake disc 3, a guide cone surface 5 is provided on the brake disc 3, the locking structure 40 includes a locking groove 41, a hydraulic block 42 and a locking protrusion 43 arranged on the guide cone surface 5, a hydraulic chamber 421 is provided on the hydraulic block 42, the locking protrusion 43 is movably arranged in the hydraulic chamber 421, and pressure can be transmitted through the hydraulic chamber 421, so that the locking protrusion 43 is ejected, the locking protrusion 43 is adapted to the locking groove 41, and the locking protrusion 43 is clamped in the locking groove 41, the locking grooves 41 are evenly provided on the guide cone surface 5 on the brake disc 3, and the eight locking grooves 41 are respectively adapted to the locking protrusions 43 on the eight hydraulic blocks 42, so that the eight adjusting units 32 are connected to the brake disc 3, the flexibility of the adjustment process of the brake disc 3 is improved, and the controllability is improved. The locking groove 41 is located on the outside of the guide cone surface 5, and eight locking grooves 41 are evenly distributed on the guide cone surface 5. The locking protrusion 43 is located on the side of the hydraulic block 42 close to the guide cone surface 5, so that the eight groups of locking structures 40 can work together to clamp the brake disc 3, thereby improving the reliability of the structure and ensuring 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 locking protrusion 43 is popped out by transmitting pressure through the hydraulic chamber 421, the rebound spring 44 is in a stretched state, so that after the four-wheel adjustment is completed, the hydraulic pressure is removed, 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, which is convenient for operation.

[0037] Figure 5 It is a schematic structural diagram of a vehicle brake and a rear suspension of a vehicle 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 automobile. The two ends of the camber adjustment rod 6 are respectively connected to the steering knuckle 4 and the rear suspension 2 of the automobile by bolts, and the two ends of the toe adjustment rod 7 are respectively connected to the steering knuckle 4 and the rear suspension 2 of the automobile by bolts.

[0039] By using the automobile rear suspension four-wheel alignment and adjustment device provided by the present invention, during the subassembly process of the automobile rear suspension, the automobile brake 1 is connected to the adjustment component 30 through the locking structure 40, and the eight groups of adjustment units 32 are evenly arranged and connected to the brake disc 3. The automobile brake 1 is driven to perform lifting movement in the vertical direction and horizontal movement in the horizontal direction through the vertical moving unit 21 and the horizontal moving unit 22, so as to complete the positioning between the automobile brake 1 and the automobile rear suspension 2, thereby facilitating the subassembly process. Then, through the telescopic movement of the adjusting screw rod 324 of the eight adjustment units 32, the adjusting screw rod 324 can be telescoped alone or moved in coordination, so as to more flexibly drive the brake disc 3 to move, tilt the brake disc 3, change the size of the toe angle and the camber angle, make the toe angle and the camber angle meet the production standards, complete the four-wheel parameter adjustment of the rear suspension 2 of the automobile, tighten the bolts at both ends of the camber adjustment rod 6, tighten the bolts at both ends of the toe adjustment rod 7, thereby completing the four-wheel parameter pre-adjustment of the rear suspension 2 of the automobile, effectively avoiding the problem of too high detection failure rate after the vehicle is off the assembly line, effectively reducing the frequency of four-wheel alignment adjustment, effectively reducing the production hours of the whole vehicle, and improving the production quality of the whole vehicle.

[0040] Functions and Effects of the Embodiments

[0041] The automobile rear suspension four-wheel alignment and adjustment device provided by the present invention includes a bracket 10, a positioning component 20 and an adjustment component 30. The positioning component 20 is arranged on the bracket 10, the positioning component 20 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 is convenient for the subassembly process of the automobile rear suspension 2. The adjustment component 30 can pre-adjust the toe-in and camber parameters of the automobile rear suspension 2, thereby avoiding the problem of too high detection failure rate after the vehicle is off the production line, effectively reducing the frequency of four-wheel alignment adjustment, effectively reducing the production hours of the whole vehicle, and improving the production quality of the whole vehicle. By using the automobile rear suspension four-wheel alignment and adjustment device provided by the present invention, during the subassembly process of the automobile rear suspension, the automobile brake 1 is connected to the adjustment component 30 through the locking structure 40, and the eight groups of adjustment units 32 are evenly arranged and connected to the brake disc 3. The automobile brake 1 is driven to perform lifting movement in the vertical direction and horizontal movement in the horizontal direction through the vertical moving unit 21 and the horizontal moving unit 22, so as to complete the positioning between the automobile brake 1 and the automobile rear suspension 2, thereby facilitating the subassembly process. Then, through the telescopic movement of the adjusting screw rod 324 of the eight adjustment units 32, the adjusting screw rod 324 can be telescoped alone or moved in coordination, so as to more flexibly drive the brake disc 3 to move, tilt the brake disc 3, change the size of the toe angle and the camber angle, make the toe angle and the camber angle meet the production standards, complete the four-wheel parameter adjustment of the rear suspension 2 of the automobile, tighten the bolts at both ends of the camber adjustment rod 6, tighten the bolts at both ends of the toe adjustment rod 7, thereby completing the four-wheel parameter pre-adjustment of the rear suspension 2 of the automobile, effectively avoiding the problem of too high detection failure rate after the vehicle is off the assembly line, effectively reducing the frequency of four-wheel alignment adjustment, effectively reducing the production hours of the whole vehicle, and improving the production quality of the whole vehicle.

[0042] Therefore, the automobile rear suspension four-wheel alignment adjustment device provided by the present invention can position the structural parts, can pre-adjust the toe-in and camber parameters of the automobile rear suspension, improve the pass rate of the four-wheel alignment detection of the whole vehicle, reduce the frequency of four-wheel alignment adjustment, reduce the production hours of the whole vehicle, and improve the production quality of the whole vehicle.

[0043] The present invention is described above by way of example in conjunction with the accompanying drawings. Obviously, the specific implementation of the present invention is not limited to the above-mentioned methods. As long as various non-substantial improvements are made using the method concept and technical solution of the present invention; or the above concept and technical solution of the present invention are directly applied to other occasions without improvement, they are all within the protection scope of the present invention.

Claims

1. A four-wheel alignment adjustment device for a rear suspension of an automobile, characterized in that: The invention comprises a bracket (10), a positioning assembly (20) and an adjusting assembly (30), wherein the positioning assembly (20) is arranged on the bracket (10), the positioning assembly (20) is connected to the adjusting assembly (30), and the adjusting assembly (30) is connected to the automobile brake (1).

2. The automobile rear suspension four-wheel alignment adjustment device according to claim 1, characterized in that: The positioning assembly (20) comprises a vertical moving unit (21) and a horizontal moving unit (22). The vertical moving unit (21) comprises a first screw rod (211) and a first slide seat (212). The first slide seat (212) is adapted to the first screw rod (211). The first slide seat (212) is movably arranged on the first screw rod (211). The end of the first screw rod (211) is connected to the bracket (10). The horizontal moving unit (22) comprises a second screw rod (221) and a second slide seat (222). The end of the second screw rod (221) is connected to the first slide seat (212). The second slide seat (222) is movably arranged on the second screw rod (221).

3. The automobile rear suspension four-wheel alignment adjustment device according to claim 2, characterized in that: The adjustment assembly (30) comprises an outer shell (31) and an adjustment unit (32) arranged in the outer shell (31); the adjustment unit (32) is movably arranged in the outer shell (31); and the outer shell (31) is connected to the second slide seat (222).

4. The automobile rear suspension four-wheel alignment adjustment device according to claim 3, characterized in that: The adjustment unit (32) comprises an inner shell (321), a drive motor (322), an adjustment slide (323) and an adjustment screw (324); the adjustment screw (324) is movably inserted into the inner shell (321); the adjustment slide (323) is movably sleeved on the adjustment screw (324); the drive motor (322) is arranged on the inner shell (321); and the drive motor (322) is connected to the adjustment slide (323).

5. The automobile rear suspension four-wheel alignment adjustment device according to claim 4, characterized in that: The adjustment unit (32) further comprises an extension shell (325), wherein the extension shell (325) is arranged on the inner shell (321), and the adjustment screw rod (324) is inserted into the extension shell (325).

6. The automobile rear suspension four-wheel alignment adjustment device according to claim 5, characterized in that: The adjusting screw rod (324) is sleeved with a first fixing seat (326) and a second fixing seat (327); the first fixing seat (326) is connected to the inner shell (321), and the second fixing seat (327) is connected to the extension shell (325).

7. The automobile rear suspension four-wheel alignment adjustment device according to claim 4, characterized in that: One end of the adjusting screw rod (324) away from the inner housing (321) is connected to the vehicle brake (1); the vehicle brake (1) comprises 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 vehicle; and a locking structure (40) is provided between the adjusting screw rod (324) and the brake disc (3).

8. The automobile rear suspension four-wheel alignment adjustment device according to claim 7, characterized in that: The brake disc (3) is provided with a guide cone surface (5), and the locking structure (40) comprises a locking groove (41) arranged on the guide cone surface (5), a hydraulic block (42) and a locking protrusion (43), the hydraulic block (42) is provided with a hydraulic chamber (421), and the locking protrusion (43) is movably arranged in the hydraulic chamber (421).

9. The automobile rear suspension four-wheel alignment adjustment device according to claim 8, characterized in that: A rebound spring (44) is arranged 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).

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

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