A shock absorber rotation testing apparatus

Abstract

The utility model provides a kind of shock absorber rotary test equipment, belong to shock absorber production technical field, shock absorber rotary test equipment, including rack, further include rotary drive mechanism, rotary drive mechanism is set in rack bottom, the rotary drive mechanism includes rotary drive source and rotationally set on mounting seat and is driven circumferentially by rotary drive source and rotates rotary seat, positioning tool is set in rotary seat top, for vertical fixed product, lifting drive mechanism is set in rack top end, the lifting drive mechanism includes lifting drive source and for fixed product plane bearing seat and is driven to limit tool by lifting drive source to vertically telescopic product spring;The utility model can limit from multiple dimensions to product, to simulate actual working condition, to facilitate the accurate determination of product torque, damping force and other parameters, improve test precision.

Description

Technical Field

[0001] This utility model relates to the field of shock absorber manufacturing technology, specifically to a shock absorber rotation testing device. Background Technology

[0002] Shock absorbers are an indispensable core component of a car's suspension system, significantly impacting vehicle safety, comfort, and handling. During operation, shock absorbers primarily stabilize the vehicle body quickly by suppressing the reciprocating oscillations of the springs, ensuring tire contact with the road surface and improving handling stability. In summary, shock absorbers work in conjunction with springs to absorb road impact energy and rapidly dissipate oscillation energy through damping, achieving a comprehensive goal of vehicle stability, ride comfort, reliable handling, and component durability.

[0003] In the production process of automotive shock absorbers, rotational testing is a crucial quality inspection step. Its core purpose is to simulate the rotational motion of the shock absorber under actual working conditions, in order to identify potential defects, verify performance stability, and ensure that the product meets design standards and usage requirements. Because the testing process requires measuring parameters such as torque and damping force, and limiting different parts of the product from multiple dimensions, traditional testing methods lack mechanisms for effectively fixing the shock absorber from multiple directions. This can easily cause displacement of the product relative to the tooling during testing, leading to unstable limiting and an inability to simulate the actual working conditions of the shock absorber, thus affecting the final test accuracy. Utility Model Content

[0004] This invention provides a shock absorber rotation testing device that can limit the product from multiple dimensions, thereby simulating actual working conditions and facilitating the accurate measurement of parameters such as product torque and damping force, thus improving testing accuracy.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: A shock absorber rotation testing device includes a frame and further includes: A rotary drive mechanism is disposed at the bottom of the frame. The rotary drive mechanism includes a rotary drive source and a rotary seat that is rotatably disposed on the frame and is driven to rotate circumferentially by the rotary drive source. A positioning fixture, wherein the positioning fixture is disposed on the top of the rotating base, is used to vertically fix the product; and A lifting drive mechanism is provided at the top of the frame. The lifting drive mechanism includes a lifting drive source and a limiting fixture for fixing the product plane bearing seat and being driven by the lifting drive source to vertically extend and retract the product spring.

[0006] Preferably, the shock absorber rotation test equipment further includes a mounting base, which is horizontally fixed to the bottom of the frame.

[0007] Preferably, the rotation drive source is a servo motor.

[0008] Preferably, the rotary drive mechanism further includes a mounting bracket fixed to the bottom of the mounting base, and the servo motor is vertically fixed to the bottom of the mounting bracket.

[0009] Preferably, the output end of the servo motor is equipped with a torque sensor, and the end of the torque sensor away from the servo motor is connected to the rotary base through a universal joint.

[0010] Preferably, the positioning fixture includes a support block fixed to the top of the rotary seat and a positioning block vertically fixed to the top of the support block.

[0011] Preferably, the lifting drive source is a servo electric cylinder.

[0012] Preferably, the lifting drive mechanism further includes a lifting frame slidably disposed on the top of the frame. The lifting frame includes a guide sleeve fixed on the frame, a lifting rod slidably disposed inside the guide sleeve, and a lifting plate fixed at the bottom of the lifting rod. The limiting fixture is disposed on the lifting plate.

[0013] Preferably, the top of the limiting fixture is also provided with a weighing sensor connected to the output end of the servo electric cylinder.

[0014] Preferably, the limiting fixture includes a universal fixture fixed to the bottom of the lifting plate, a connecting seat movably disposed at the bottom end of the universal fixture, and a connecting plate fixed to the bottom of the connecting seat.

[0015] As can be seen from the above technical solutions, this utility model has the following beneficial effects: 1. In this utility model, the product is vertically fixed by a positioning fixture, and the product's planar bearing seat is fixed by a limiting fixture. This allows for the separate fixing of the bottom and top of the product. A rotary drive source can then be used to drive the rotating seat to rotate, causing the product to oscillate left and right, thus allowing for torque testing. Furthermore, during the left and right rotation of the product, a lifting drive source can be used to drive the product's spring to extend and retract up and down, thereby testing the product's damping force. Therefore, this utility model can limit the product from multiple dimensions, simulating actual working conditions to facilitate accurate measurement of parameters such as product torque and damping force, thus improving testing precision.

[0016] 2. In this utility model, the limiting fixture includes a universal fixture, a connecting seat, and a connecting plate. The universal fixture is connected to the lifting plate, and the connecting plate is connected to the product's flat bearing seat by screws. At the same time, the universal fixture has a movable connection deflection, so when the servo electric cylinder drives the lifting plate to move up and down, the power can be transmitted to the product's flat bearing seat to perform damping force testing on the product. Attached Figure Description

[0017] Figure 1 This is a front view of the present invention; Figure 2 This is a schematic diagram of the connection between the limit fixture and the lifting frame; Figure 3 This is a side view of the present invention; Figure 4 A structural diagram showing the connection between the limiting fixture, the product, and the positioning fixture; Figure 5 This is a schematic diagram of the connection between the lifting drive source and the limit fixture.

[0018] In the diagram: 10, frame; 210, rotary drive source; 220, rotary seat; 230, mounting bracket; 310, support block; 320, positioning block; 410, lifting drive source; 420, limit fixture; 421, universal fixture; 422, connecting seat; 4221, seat plate; 4222, connecting column; 423, connecting plate; 430, lifting frame; 431, guide sleeve; 432, lifting rod; 433, lifting plate; 50, mounting seat; 60, torque sensor; 70, universal joint; 80, load cell. Detailed Implementation

[0019] A preferred embodiment of the present invention will now be described in detail with reference to the accompanying drawings.

[0020] To achieve the above objectives, the embodiments of this utility model adopt the following technical solutions: (Refer to...) Figure 1 , Figure 3A shock absorber rotation testing device includes a frame 10, a rotation drive mechanism, a positioning fixture, and a lifting drive mechanism. The rotation drive mechanism is located at the bottom of the frame 10 and includes a rotation drive source 210 and a rotating seat 220. The rotating seat 220 is rotatably mounted on the frame and can be driven by the rotation drive source to rotate circumferentially. The positioning fixture is located at the top of the rotating seat 220 and is used to vertically fix the product. The lifting drive mechanism is located at the top of the frame 10 and includes a lifting drive source 410 and a limiting fixture for fixing the product. The device includes a planar bearing housing and a limiting fixture that can be driven by a lifting drive source to vertically extend and retract the product's spring. In use, the product can be manually clamped, with the shock absorber vertically fixed using the positioning fixture. The limiting fixture can then be moved to the planar bearing housing position on the product by the lifting drive source and fixed there. Subsequently, the rotation drive source can drive the rotating seat to rotate, causing the product to oscillate left and right to test the product's torque. Furthermore, while rotating the product left and right, the lifting drive source can also be used to drive the product's spring to extend and retract up and down to test the product's damping force. After the test is completed, the lifting drive source resets, and the product can be manually clamped again for loading and unloading.

[0021] Reference Figure 1 , Figure 3 As a preferred technical solution in this embodiment, the shock absorber rotation testing equipment further includes a mounting base 50. The mounting base is horizontally fixedly disposed at the bottom of the frame 10. The mounting base 50 can be a plate structure, which is fixedly installed inside the frame 10. In this way, the mounting base 50 can vertically form a testing space and an installation space inside the frame 10. Specifically, in this embodiment, the testing space is the internal space of the frame located above the mounting base 50, which is the area for conducting various performance tests on the product. Similarly, the installation space is the internal space of the frame below the mounting base, which is the area for installing components such as the rotation drive mechanism and positioning fixtures.

[0022] It should be noted that by setting a mounting base 50 on the frame 10, the rotating base 220 can be rotatably mounted on the mounting base via bearings, thereby improving the stability of the rotation of the rotating base 220.

[0023] Reference Figure 1 In some embodiments, the rotary drive source 210 is a servo motor. In addition, the rotary drive mechanism also includes a mounting bracket 230, which is fixedly disposed at the bottom of the mounting base 50. The servo motor is vertically fixed at the bottom of the mounting bracket. The mounting bracket can be a frame structure, which is vertically fixedly connected to the bottom of the mounting base and mainly serves to install the rotary drive mechanism.

[0024] Furthermore, in order to accurately measure the torque when the product rotates, a torque sensor 60 is provided at the output end of the servo motor. At the same time, a universal joint 70 is provided at the end of the torque sensor away from the servo motor. This universal joint 70 is connected to the rotary seat 220. In this way, when the rotation drive source 210 rotates, the power can be transmitted to the rotary seat through the universal joint to drive the product to rotate for testing, and the torque when the product rotates can be measured by the torque sensor.

[0025] In some embodiments, refer to Figure 4 The positioning fixture includes a support block 310 and a positioning block 320. The support block 310 is fixedly disposed on the top of the rotating seat 220, and the positioning block 320 is vertically fixed on the top of the support block 310. Specifically, in this embodiment, the positioning block 320 and the support block 310 are integrally formed, forming an L-shaped structure. In use, the positioning fixture composed of the support block and the positioning block is fixed to the top of the rotating seat 220 by fasteners such as bolts. The connecting piece on the outer cylinder of the product is fixed to the side of the positioning block by bolts. During operation, the product is vertically distributed to facilitate rotation testing.

[0026] Reference Figure 2 In some embodiments, the lifting drive source 410 is a servo electric cylinder, and the lifting drive mechanism further includes a lifting frame 430, which is slidably disposed on the top of the frame 10. Further, the lifting frame includes a guide sleeve 431, a lifting rod 432, and a lifting plate 433. The guide sleeve 431 is vertically fixed on the frame, and in this embodiment, the number of guide sleeves can be multiple, such as 2, 4, etc. The number of lifting rods 432 corresponds to the number of guide sleeves, and the lifting rod is slidably disposed inside the guide sleeve. The lifting plate 433 is fixedly disposed at the bottom of the lifting rod, and the limiting fixture is disposed on the lifting plate.

[0027] Furthermore, in order to measure the damping force of the product's spring during its vertical extension and retraction, a weighing sensor 80 is also provided on the top of the limiting fixture. The weighing sensor 80 is connected to the output end of the servo cylinder. In use, the output end of the servo cylinder is connected to the weighing sensor 80. Thus, under the drive of the servo cylinder, the lifting plate can be driven to move up and down. The lifting plate then drives the product's planar bearing seat to move through the limiting fixture, thereby compressing the product's spring up and down, and thus measuring the product's damping force.

[0028] Furthermore, since the lifting plate 433 drives the lifting rod 432 to slide along the guide sleeve 431, and the number of guide sleeves and lifting rods can be set to multiple, the stability of the vertical movement of the plane bearing seat can be improved when the product spring moves up and down.

[0029] Furthermore, refer to Figure 4 , Figure 5 The limiting fixture 420 includes a universal fixture 421, a connecting seat 422, and a connecting plate 423. The universal fixture is fixedly installed at the bottom of the lifting plate 433, the connecting seat 422 is movably installed at the bottom of the universal fixture, and the connecting plate 423 is fixedly installed at the bottom of the connecting seat. The universal fixture is used to connect two non-collinear components. It is a mechanical transmission connector that can realize the transmission of power between components with a certain angle or position change. In this embodiment, the universal fixture can be a universal joint or universal joint. Since it is existing technology, it will not be described in detail here. The connecting seat 422 includes a seat plate 4221 and connecting columns 4222. The top of the seat plate 4221 is hinged to the universal fixture 421 via a connecting plate. There are multiple connecting columns 4222, which are distributed around the bottom of the seat plate 4221. Meanwhile, the connecting plate 423 is fixedly installed at the bottom of the connecting columns 4222. In use, the connecting plate 423 is fixedly connected to the product's flat bearing seat by screws. The output end of the servo electric cylinder is fixedly connected to the top of the weighing sensor 80. Thus, when the servo electric cylinder drives the lifting plate to move up and down, the product's flat bearing seat can be driven sequentially through the universal fixture, the connecting seat, and the connecting plate to apply force to the product's spring.

[0030] In use, the product can be manually loaded and clamped onto the positioning fixture to achieve vertical fixation. The servo electric cylinder drives the limiting fixture to move to the position of the product's flat bearing seat and fixes the product's flat bearing seat. Then, the servo motor can transmit power to the rotating seat 220 to drive the rotating seat to rotate, thereby causing the product to swing left and right. The torque of the product is tested by the torque sensor 60. In addition, while the product is rotating left and right, the servo electric cylinder can also drive the product's flat bearing seat to move up and down to achieve the up and down extension and contraction of the spring. The damping force of the product is measured by the weighing sensor 80, thereby testing the product's damping force. After the test is completed, the servo electric cylinder resets, and the product can be manually clamped again to achieve loading and unloading.

[0031] The above-described embodiments are merely preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model. Various modifications and improvements made by those skilled in the art to the technical solutions of the present utility model without departing from the spirit of the present utility model should fall within the protection scope defined by the claims of the present utility model.

Claims

1. A shock absorber rotation testing device, comprising a frame (10), characterized in that, Also includes: A rotary drive mechanism is provided at the bottom of the frame (10). The rotary drive mechanism includes a rotary drive source (210) and a rotary seat (220) that is rotatably mounted on the frame and driven to rotate circumferentially by the rotary drive source. A positioning fixture, disposed on top of the rotary seat (220), is used to vertically fix the product; and The lifting drive mechanism is located at the top of the frame (10). The lifting drive mechanism includes a lifting drive source (410) and a limiting fixture (420) for fixing the product plane bearing seat and being driven by the lifting drive source to vertically extend and retract the product spring.

2. The shock absorber rotation testing equipment according to claim 1, characterized in that, The shock absorber rotation test equipment also includes a mounting base (50), which is horizontally fixed at the bottom of the frame (10).

3. The shock absorber rotation testing equipment according to claim 2, characterized in that, The rotary drive source (210) is a servo motor.

4. The shock absorber rotation testing equipment according to claim 3, characterized in that, The rotary drive mechanism also includes a mounting bracket (230) fixed to the bottom of the mounting base (50), and the servo motor is vertically fixed to the bottom of the mounting bracket.

5. The shock absorber rotation testing equipment according to claim 4, characterized in that, The output end of the servo motor is equipped with a torque sensor (60), and the end of the torque sensor away from the servo motor is connected to the rotary seat (220) through a universal joint (70).

6. The shock absorber rotation testing equipment according to claim 3, characterized in that, The positioning fixture includes a support block (310) fixed on the top of the rotary seat (220) and a positioning block (320) vertically fixed on the top of the support block.

7. The shock absorber rotation testing equipment according to claim 6, characterized in that, The lifting drive source (410) is a servo electric cylinder.

8. The shock absorber rotation testing device according to claim 7, characterized in that, The lifting drive mechanism also includes a lifting frame (430) slidably disposed on the top of the frame (10). The lifting frame includes a guide sleeve (431) fixed on the frame, a lifting rod (432) slidably disposed inside the guide sleeve, and a lifting plate (433) fixed at the bottom of the lifting rod. The limiting fixture is disposed on the lifting plate.

9. The shock absorber rotation testing device according to claim 8, characterized in that, The top of the limiting fixture is also equipped with a weighing sensor (80) connected to the output end of the servo electric cylinder.

10. The shock absorber rotation testing device according to claim 9, characterized in that, The limiting fixture (420) includes a universal fixture (421) fixed to the bottom of the lifting plate (433), a connecting seat (422) movably disposed at the bottom of the universal fixture, and a connecting plate (423) fixed to the bottom of the connecting seat.

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