Detector for fatigue test of positive control arm

Abstract

The utility model relates to the technical field of control arm detection, in particular to a detector for a fatigue test of a positive control arm, which comprises a temperature control box, a shell is fixedly mounted on the inner wall of the bottom of the temperature control box, a driving device is connected with a swing rod, a clamping ring is rotatably mounted at one end of the swing rod, and the clamping ring is connected with the shell. Bolts are rotationally installed on the two sides of the clamping ring through threads, arc-shaped clamping blocks are rotationally installed on one sides of the bolts, a bottom plate fixedly installed on the temperature control box is arranged below the clamping ring, a support is fixedly installed on the bottom plate, a first screw rod is rotationally installed on the support through threads, and a second screw rod is rotationally installed on the first screw rod through threads. And a movable clamping plate is rotationally mounted on one side of the first screw rod. The two sides of the control arm can be clamped and fixed by rotating the first screw rod to enable the movable clamping plate to be close to the fixed clamping plate, and then the top of the control arm can be pressed by rotating the second screw rod to enable the pressing disc to descend, so that the ball head moves in a fatigue test, the ball head can be prevented from driving the control arm to move upwards, and fatigue detection is prevented from being influenced.

Description

Technical Field

[0001] This utility model relates to the field of control arm detection technology, specifically a detector for positive control arm fatigue testing. Background Technology

[0002] The control arm is an important component of the car's suspension system, responsible for connecting the wheels and the body to ensure vehicle stability and handling. The ball joint is a key part connecting the control arm and the wheel suspension assembly, allowing the control arm to rotate in different directions and bear the forces of suspension and steering. After production, fatigue tests are required between the control arm and the ball joint. Only after passing the tests can the control arm be put into car assembly; otherwise, the car will have safety hazards. In particular, the quality of the ball joint needs to be tested.

[0003] Chinese Utility Model Announcement No. CN217385068U includes two incomplete gears, one and two, fixed coaxially. The first incomplete gear has three-quarters of a tooth, and the second incomplete gear has one-quarter of a tooth, with their teeth complementing each other. The first incomplete gear meshes with a driven gear, which is connected to an eccentric rocker arm. The other end of the rocker arm is rotatably connected to a connecting mechanism. The second incomplete gear meshes with another driven gear, which has a transmission assembly. The other end of the transmission assembly has a cam pressing mechanism, which is located above the connecting mechanism. A stepper motor is keyed to the axial direction of the first incomplete gear. The first and second incomplete gears drive the rocker arm and the cam pressing mechanism to continuously switch actions. After reciprocating, the ball pin is subjected to downward pressure, completing a single fatigue test. Under the continuous drive of the stepper motor, fatigue testing of the ball pin is continuously performed, improving the testing efficiency of the ball pin.

[0004] The applicant found some shortcomings in the use of the patent: the control arm is only clamped and fixed on both sides by two clamps. During fatigue testing, the movement of the ball head may cause the control arm to move upward, affecting the test. Moreover, the testing device does not have the function of testing in high-temperature environments, and the testing is relatively simple.

[0005] Therefore, this invention designs a detector for positive control arm fatigue testing to solve the problems existing in the prior art. Utility Model Content

[0006] The purpose of this invention is to provide a detector for fatigue testing of a positive control arm, so as to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a detector for fatigue testing of a positive control arm, comprising: a temperature control box, a shell fixedly installed on the bottom inner wall of the temperature control box, a driving device provided inside the shell, a swing arm connected to the driving device, a clamping ring rotatably installed at one end of the swing arm, bolts rotatably installed on both sides of the clamping ring via threads, an arc-shaped clamping block rotatably installed on one side of the bolts, a base plate fixedly installed below the clamping ring and fixedly installed on the temperature control box, a bracket fixedly installed on the base plate, a screw rod rotatably installed on the bracket via threads, a movable clamping plate rotatably installed on one side of the screw rod, a fixed clamping plate fixedly installed on one side of the movable clamping plate and fixedly installed on the base plate, an L-shaped plate installed on the top of the movable clamping plate, a screw rod rotatably installed on the top of the L-shaped plate via threads, a pressure plate rotatably installed on the bottom of the screw rod rotatably, a hot air blower provided below one side of the temperature control box, a temperature sensor provided on the side wall of the temperature control box, and a controller provided at one end of the temperature control box.

[0008] Preferably, the arc-shaped clamping block is equipped with a limiting rod that is slidably connected to the clamping ring, and the limiting rod can limit the arc-shaped clamping block.

[0009] Preferably, a guide rod that is slidably connected to the bracket is installed on one side of the movable clamping plate, and the guide rod can limit the movement of the movable clamping plate.

[0010] Preferably, the hot air blower is provided with a dustproof net on its outer side, which is installed with the temperature control box by screws. The dustproof net can prevent dust from entering the hot air blower.

[0011] Preferably, one end of the temperature control box is provided with a door on one side of the base plate, which facilitates the loading and unloading of materials by the operator on the control arm.

[0012] Preferably, an exhaust port is provided on the upper side of the temperature control box for venting.

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

[0014] 1. This utility model uses screw one to bring the movable clamping plate close to the fixed clamping plate, which clamps and fixes both sides of the control arm. Then, screw two is rotated to lower the pressure plate, which presses the top of the control arm. In this way, during fatigue testing, the ball head moves, which can prevent the ball head from driving the control arm to move upward and avoid affecting the fatigue test.

[0015] 2. This utility model starts the hot air blower to heat up the temperature control box. The temperature inside the temperature control box can be controlled by the controller and temperature sensor. Different temperatures can be simulated, making fatigue detection of the control arm more diverse. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the left sectional view of the present invention;

[0017] Figure 2 This is a right-side sectional view of the present invention;

[0018] Figure 3 For the present utility model Figure 1 Enlarged schematic diagram of the structure at point A;

[0019] Figure 4 For the present utility model Figure 1 Enlarged schematic diagram of the structure at point B;

[0020] Figure 5 This is a front view schematic diagram of the present utility model.

[0021] In the diagram: 1. Temperature control box; 2. Outer shell; 3. Drive device; 4. Swing rod; 5. Clamping ring; 6. Bolt; 7. Arc-shaped clamping block; 8. Limiting rod; 9. Base plate; 10. Bracket; 11. Screw one; 12. Movable clamping plate; 13. Fixed clamping plate; 14. Guide rod; 15. L-shaped plate; 16. Screw two; 17. Pressure plate; 18. Hot air blower; 19. Temperature sensor; 20. Controller; 21. Dustproof net. Detailed Implementation

[0022] 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.

[0023] Please see Figure 1-5This utility model provides an embodiment of a detector for fatigue testing of a positive control arm, comprising: a temperature control box 1, a shell 2 fixedly installed on the bottom inner wall of the temperature control box 1, a driving device 3 inside the shell 2, a swing arm 4 connected to the driving device 3, a clamping ring 5 rotatably installed at one end of the swing arm 4, bolts 6 rotatably installed on both sides of the clamping ring 5 via threads, an arc-shaped clamping block 7 rotatably installed on one side of the bolts 6, a base plate 9 fixedly installed below the clamping ring 5 and fixedly installed on the temperature control box 1, a bracket 10 fixedly installed on the base plate 9, and a screw 11 rotatably installed on the bracket 10 via threads. A movable clamping plate 12 is rotatably installed on one side of the temperature control box 1. A fixed clamping plate 13 is fixedly installed on one side of the movable clamping plate 12 and fixedly installed on the bottom plate 9. An L-shaped plate 15 is installed on the top of the movable clamping plate 12. A screw rod 16 is rotatably installed on the top of the L-shaped plate 15 by means of threads. A pressure plate 17 is rotatably installed on the bottom of the screw rod 16. A hot air blower 18 is provided on the lower side of one side of the temperature control box 1. A temperature sensor 19 is provided on the side wall of the temperature control box 1. A controller 20 is provided at one end of the temperature control box 1. The specific structure of the drive device 3 has been described in detail in the comparative document: CN217385068U, so it will not be described in detail here.

[0024] Please see Figure 1-3 In this embodiment: a limiting rod 8 that is slidably connected to the clamping ring 5 is installed on the arc-shaped clamping block 7.

[0025] Please see Figure 1-3 In this embodiment: a guide rod 14 that is slidably connected to the bracket 10 is installed on one side of the movable clamp 12.

[0026] Please see Figure 1-3 In this embodiment: the hot air blower 18 is provided with a dustproof net 21 that is installed on the outside of the temperature control box 1 by screws.

[0027] Please see Figure 1-3 In this implementation: one end of the temperature control box 1 is located on one side of the base plate 9 and has a door with a transparent window to facilitate staff to observe the testing situation.

[0028] Please see Figure 1-3 In this embodiment: an exhaust vent is provided on the upper side of one side of the temperature control box 1. A dustproof mesh is installed inside the exhaust vent.

[0029] Working principle: Rotate screw 11 to bring the movable clamping plate 12 close to the fixed clamping plate 13, clamping both sides of the control arm. Then rotate screw 16 to lower the pressure plate 17 and press the control arm tightly, improving its stability. Then, pass the ball head pin on the control arm through the clamping ring 5 and rotate bolt 6 to clamp the pin with the arc-shaped clamping block 7. Then fatigue testing can begin. During testing, the hot air blower 18 can be turned on to heat up the temperature control box 1, simulating a high-temperature environment and making the testing more diverse. The contents not described in detail in this instruction are existing technologies known to those skilled in the art.

[0030] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A detector for fatigue testing of a positive control arm, comprising: A temperature control box (1) is characterized in that: a shell (2) is fixedly installed on the bottom inner wall of the temperature control box (1), a driving device (3) is provided inside the shell (2), the driving device (3) is connected to a swing arm (4), a clamping ring (5) is rotatably installed at one end of the swing arm (4), bolts (6) are rotatably installed on both sides of the clamping ring (5) by threads, an arc-shaped clamping block (7) is rotatably installed on one side of the bolts (6), a base plate (9) is provided below the clamping ring (5) and fixedly installed with the temperature control box (1), a bracket (10) is fixedly installed on the base plate (9), and a bracket (10) is rotatably installed on the bracket (10) by threads. There is a screw (11), a movable clamping plate (12) is rotatably installed on one side of the screw (11), a fixed clamping plate (13) is provided on one side of the movable clamping plate (12) and fixedly installed on the base plate (9), an L-shaped plate (15) is installed on the top of the movable clamping plate (12), a screw (16) is rotatably installed on the top of the L-shaped plate (15) by a thread, a pressure plate (17) is rotatably installed on the bottom of the screw (16), a hot air blower (18) is provided on one side of the temperature control box (1), a temperature sensor (19) is provided on the side wall of the temperature control box (1), and a controller (20) is provided at one end of the temperature control box (1).

2. The detector for fatigue testing of a positive control arm according to claim 1, characterized in that: The arc-shaped clamping block (7) is equipped with a limiting rod (8) that is slidably connected to the clamping ring (5).

3. The detector for fatigue testing of a positive control arm according to claim 1, characterized in that: A guide rod (14) that is slidably connected to the bracket (10) is installed on one side of the movable clamp (12).

4. The detector for fatigue testing of a positive control arm according to claim 1, characterized in that: The hot air blower (18) is provided with a dustproof net (21) that is installed with the temperature control box (1) by screws on the outside.

5. A detector for fatigue testing of a positive control arm according to claim 1, characterized in that: The temperature control box (1) has a door at one end located on one side of the bottom plate (9).

6. The detector for fatigue testing of a positive control arm according to claim 1, characterized in that: An exhaust vent is provided on one side of the temperature control box (1).

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