Automobile stabilizer bar detection tool

Abstract

The utility model discloses a kind of automobile stabilizer bar detection tool, it is related to automobile detection technical field, including box, two motors are installed in the inside of box, the one end of each motor is connected with screw rod, the outer wall of screw rod is connected with support with thread, the top end side of support is equipped with hydraulic cylinder, the telescopic end of hydraulic cylinder is connected with push rod, the outer wall of push rod is slidably connected with two push blocks, the inner wall of each push block is equipped with sliding slot, each push block is slidably connected with push rod by sliding slot;In the utility model, balanced force of stabilizer bar is realized by three-point positioning using fixing assembly, actual installation working condition is simulated, local stress concentration problem caused by traditional single-point, two-point clamping is avoided, ensure that stabilizer bar is evenly stressed during detection process, avoid deformation or damage caused by improper clamping, reduce the data deviation generated by clamping problem, improve detection accuracy.

Description

Technical Field

[0001] This utility model relates to the field of automotive testing technology, specifically to a testing fixture for automotive stabilizer bars. Background Technology

[0002] Throughout the development of the modern automotive industry, vehicle stability and handling have always been core concerns. With the diversification of road conditions, the increase in vehicle speed, and the continuous improvement of consumers' demands for driving experience, various components of automobiles are constantly evolving and being optimized, among which the vehicle stabilizer bar is a key component of the suspension system.

[0003] In existing technologies, traditional stabilizer bar testing fixtures typically clamp the stabilizer bar using a single-point or two-point fixing method. Since the stabilizer bar needs to withstand complex torsional moments and multi-directional forces during testing, uneven clamping forces can easily lead to stress concentration in the stabilizer bar during testing. When simulating vehicle torsion testing, excessive local clamping forces can cause additional deformation of the stabilizer bar at unexpected locations, thereby interfering with the evaluation of data. For example, the measurement errors of key parameters such as stiffness and damping increase, making it impossible to accurately reflect the working characteristics of the stabilizer bar in the actual vehicle suspension system.

[0004] In view of the above, this application is hereby submitted. Utility Model Content

[0005] The purpose of this invention is to provide a testing fixture for automotive stabilizer bars to solve the problems mentioned in the background art.

[0006] To solve the above-mentioned technical problems, this utility model provides an automotive stabilizer bar testing fixture, including a housing. Two motors are installed inside the housing, each with a lead screw connected to one end. A bracket is threaded onto the outer wall of the lead screw. A hydraulic cylinder is installed on one side of the top of the bracket. A push rod is connected to the telescopic end of the hydraulic cylinder. Two push blocks are slidably connected to the outer wall of the push rod. Each push block has a groove on its inner wall, and each push block is slidably connected to the push rod through the groove. A support plate is fixedly connected to one side of the outer wall of the push block. A slider is installed at the bottom end of the push block on the side away from the support plate. A fixing clamp is fixedly connected to the top of the bracket on the side away from the hydraulic cylinder. An installation opening is provided at the top of the bracket.

[0007] Furthermore, detection components are installed on both sides of the top of the box. The two detection components include fixed plates installed on both sides of the top of the box. A fixed frame is fixedly connected to the inner wall of each fixed plate. A gear is rotatably connected to one end of the fixed frame. A pointer is fixedly connected to the top of the gear. A rack is meshed with one side of the outer wall of the gear. A movable frame is fixedly connected to one end of the gear. Two springs are connected to one side of the outer wall of the movable frame. A connecting rod is connected to the outer wall of the movable frame away from the springs.

[0008] Furthermore, the detection component is fixedly connected to the bracket via connecting rods, and the bottom ends of the two fixed plates are fixedly connected to the top sides of the box. Support legs are installed at the bottom of the box.

[0009] Furthermore, the side of the motor furthest from the output end is fixedly connected to the inner wall of the housing, while the lead screw is rotatably connected to the inner wall of the housing.

[0010] Furthermore, one end of the spring is fixedly connected to the movable frame, the other end of the spring is fixedly connected to the fixed frame, one end of the fixed frame is fixedly connected to the inner wall of the fixed plate, and a scale is provided on the outer wall of the top of the fixed plate.

[0011] Furthermore, the push rod is shaped like a herringbone, and push blocks are slidably connected to both sides of the push rod away from the hydraulic cylinder.

[0012] Furthermore, each push block is slidably connected to the top of the bracket via a slider, and the push rod is slidably connected to the top of the bracket.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] 1. By using a fixed component to achieve balanced force on the stabilizer bar through three-point positioning, the actual installation conditions are simulated, avoiding the local stress concentration problem caused by traditional single-point or two-point clamping. This ensures that the stabilizer bar is subjected to uniform force during the testing process, avoids deformation or damage caused by improper clamping, reduces data deviation caused by clamping problems, and improves testing accuracy.

[0015] 2. Adjust the clamping surface size according to the diameter of the stabilizer bar to be compatible with stabilizer bars of different specifications, improve the versatility and adaptability of the tooling, and reduce the detection error caused by size differences.

[0016] 3. The pointer-type tension display, combined with the adjustable clamping surface design, eliminates the need for operators to repeatedly adjust equipment parameters, shortens test preparation time, and avoids the risk of damage to the stabilizer bar due to over-clamping. Attached Figure Description

[0017] Figure 1 A schematic diagram of the overall structure of a vehicle stabilizer bar testing fixture;

[0018] Figure 2 A schematic diagram of the motor connection structure in a car stabilizer bar testing fixture;

[0019] Figure 3 This is a schematic diagram of the structure of a fixing component in a vehicle stabilizer bar testing fixture.

[0020] Figure 4 A schematic diagram of the push block in a car stabilizer bar testing fixture;

[0021] Figure 5 This is a schematic diagram of the structure of a testing component in an automotive stabilizer bar testing fixture.

[0022] Figure 6 This is a schematic diagram of the fixing frame in a vehicle stabilizer bar testing fixture.

[0023] In the diagram: 1. Housing; 2. Motor; 3. Lead screw; 4. Bracket; 5. Hydraulic cylinder; 6. Push rod; 7. Push block; 8. Slide groove; 9. Support plate; 10. Slider; 11. Fixing clamp; 12. Mounting port; 13. Fixing plate; 14. Fixing frame; 15. Gear; 16. Pointer; 17. Rack; 18. Movable frame; 19. Spring; 20. Connecting rod; 21. Support leg. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Please see Figures 1-6This utility model provides a technical solution: a vehicle stabilizer bar testing fixture, including a housing 1. Two motors 2 are installed inside the housing 1, and each motor 2 has a lead screw 3 connected to one end. When the output shaft of the motor 2 rotates, it drives the lead screw 3 to rotate synchronously. A bracket 4 is threadedly connected to the outer wall of the lead screw 3, and the bracket 4 is threadedly connected to the lead screw 3. When the lead screw 3 rotates, it can move linearly along its axis. A hydraulic cylinder 5 is installed on one side of the top of the bracket 4. A push rod 6 is connected to the telescopic end of the hydraulic cylinder 5. After the hydraulic cylinder 5 is activated, it pushes the push rod 6 to slide along the telescopic direction of the hydraulic cylinder 5. Two push blocks 7 are slidably connected to the outer wall of the push rod 6. Each push block 7 has a groove 8 on its inner wall, and each push block 7 is slidably connected to the push rod 6 through the groove 8. The hydraulic cylinder 5 has a large output force and can provide stable clamping. Force is applied to ensure that the stabilizer bar does not loosen during the testing process. The herringbone push rod 6 enables the two push blocks 7 to move synchronously, ensuring the symmetry and stability of the stabilizer bar clamping. A support plate 9 is fixedly connected to one side of the outer wall of the push block 7. A slider 10 is installed at the bottom end of the push block 7 away from the support plate 9. The support plate 9 can increase the contact area between the component and the stabilizer bar, reduce the local pressure on the stabilizer bar during clamping, and avoid damage to the surface of the stabilizer bar. The design of the slider 10 reduces the friction when the push block 7 moves, and improves the movement efficiency and stability of the clamping component. A fixing clip 11 is fixedly connected to the top of the bracket 4 away from the hydraulic cylinder 5. The fixing clip 11 works with the support plate 9 to achieve a stable clamping of the stabilizer bar. An installation port 12 is opened at the top of the bracket 4, which facilitates the insertion and fixing of one end of the stabilizer bar.

[0026] See Figure 5 , Figure 6 Both sides of the top of the housing 1 are equipped with detection components. Each detection component includes a fixed plate 13 mounted on either side of the top of the housing 1. A mounting bracket 14 is fixedly connected to the inner wall of each fixed plate 13. The fixed plate 13 provides installation space for the mounting bracket 14, ensuring that the mounting bracket 14 does not move. A gear 15 is rotatably connected to one end of the mounting bracket 14. A pointer 16 is fixedly connected to the top of the gear 15. The gear 15 can rotate around its own center point on the mounting bracket 14. When the gear 15 rotates, the pointer 16... 6. The gear rotates synchronously to visually display the test data. A rack 17 is meshed with one side of the outer wall of the gear 15. The rack 17 works by fixing one end of the gear 15 to a movable frame 18. The rack 17 can move in a straight line within the fixed plate 13. The movable frame 18 can move synchronously with the rack 17. Two springs 19 are connected to one side of the outer wall of the movable frame 18. A connecting rod 20 is connected to the outer wall of the movable frame 18 away from the springs 19. The springs 19 can undergo elastic deformation to provide restoring force for the movable frame 18.

[0027] See Figure 2The detection component is fixedly connected to the bracket 4 via the connecting rod 20. The bottom ends of the two fixed plates 13 are also fixedly connected to the top sides of the housing 1. The connecting rod 20 transmits the displacement of the bracket 4 in the clamping component to the movable frame 18 in the detection component, realizing the linkage between the clamping component and the detection component. When the bracket 4 moves, the movable frame 18 moves through the connecting rod 20, thereby driving the detection component to perform data detection and display. The bottom end of the housing 1 is equipped with a support leg 21, which provides stable support for the housing 1 and avoids affecting the detection accuracy due to shaking.

[0028] See Figure 2 The side of motor 2 furthest from the output end is fixedly connected to the inner wall of housing 1 to prevent motor 2 from shifting or shaking during operation, thus improving the stability of motor 2 operation. The lead screw 3 is rotatably connected to the inner wall of housing 1.

[0029] See Figure 3 The push rod 6 is shaped like a herringbone. The herringbone shape of the push rod 6 can evenly distribute the power to the push blocks 7 on both sides, making the clamping parts more evenly stressed and improving the reliability of clamping. The push rod 6 is slidably connected to the push blocks 7 on both sides away from the hydraulic cylinder 5. When the push rod 6 moves in a straight line, the push blocks 7 will slide along the center point of the mounting port 12 to achieve clamping.

[0030] See Figure 5 One end of the fixing frame 14 is fixedly connected to the inner wall of the fixing plate 13. The top outer wall of the fixing plate 13 is provided with a scale, which can intuitively display the current test data, making it convenient for staff to conduct work evaluation.

[0031] Working principle: When motor 2 rotates, it drives lead screw 3 to rotate synchronously. When lead screw 3 rotates, bracket 4 moves linearly along the axis of lead screw 3. Hydraulic cylinder 5 pushes herringbone push rod 6, which causes two push blocks 7 to move synchronously, ensuring clamping symmetry and stability. Fixed clamp 11, together with support plate 9 on push block 7, clamps the stabilizing rod. Mounting port 12 is opened at the top of bracket 4 to facilitate the insertion and fixing of one end of the stabilizing rod. The detection component is fixedly connected to bracket 4 through connecting rod 20. When bracket 4 moves, it drives movable frame 18 to move through connecting rod 20, thereby driving detection component to perform data detection and display. The scale on the outer wall of fixed plate 13, together with pointer 16, can intuitively display the current detection data, which is convenient for data evaluation.

[0032] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A testing fixture for automotive stabilizer bars, comprising a housing (1), characterized in that: The housing (1) is equipped with two motors (2), and each motor (2) is connected to a lead screw (3) at one end. The lead screw (3) is threaded to a bracket (4). A hydraulic cylinder (5) is installed on one side of the top of the bracket (4). A push rod (6) is connected to the telescopic end of the hydraulic cylinder (5). Two push blocks (7) are slidably connected to the outer wall of the push rod (6). Each push block (7) has a groove (8) on its inner wall. Each push block (7) is slidably connected to the push rod (6) through the groove (8). A support plate (9) is fixedly connected to one side of the outer wall of the push block (7). A slider (10) is installed at the bottom of the side of the push block (7) away from the support plate (9). A fixing clamp (11) is fixedly connected to the top of the bracket (4) away from the hydraulic cylinder (5). An installation port (12) is opened at the top of the bracket (4).

2. The automotive stabilizer bar testing fixture as described in claim 1, characterized in that: Both sides of the top of the box (1) are equipped with detection components. The two detection components include fixed disks (13) installed on both sides of the top of the box (1). Each fixed disk (13) has a fixed frame (14) fixedly connected to its inner wall. A gear (15) is rotatably connected to one end of the fixed frame (14). A pointer (16) is fixedly connected to the top of the gear (15). A rack (17) is meshed with one side of the outer wall of the gear (15). A movable frame (18) is fixedly connected to one end of the rack (17) and the gear (15). Two springs (19) are connected to one side of the outer wall of the movable frame (18). A connecting rod (20) is connected to the outer wall of the movable frame (18) away from the springs (19).

3. The automotive stabilizer bar testing fixture as described in claim 2, characterized in that: The detection component is fixedly connected to the bracket (4) via the connecting rod (20). The bottom ends of the two fixed plates (13) are fixedly connected to the top sides of the box (1). The bottom end of the box (1) is equipped with support legs (21).

4. The automotive stabilizer bar testing fixture as described in claim 3, characterized in that: The side of the motor (2) away from the output end is fixedly connected to the inner wall of the housing (1), and the lead screw (3) is rotatably connected to the inner wall of the housing (1).

5. The automotive stabilizer bar testing fixture as described in claim 4, characterized in that: The push rod (6) is shaped like a herringbone, and push blocks (7) are slidably connected to both sides of the push rod (6) away from the hydraulic cylinder (5).

6. The automotive stabilizer bar testing fixture as described in claim 5, characterized in that: Each of the push blocks (7) is slidably connected to the top of the bracket (4) via a slider (10), and the push rod (6) is slidably connected to the top of the bracket (4).

7. The automotive stabilizer bar testing fixture as described in claim 6, characterized in that: One end of the fixing frame (14) is fixedly connected to the inner wall of the fixing plate (13), and a scale is provided on the top outer wall of the fixing plate (13).

8. The automotive stabilizer bar testing fixture as described in claim 7, characterized in that: One end of the spring (19) is fixedly connected to the movable frame (18), and the other end of the spring (19) is fixedly connected to the fixed frame (14).

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