Double-station fatigue testing machine

Abstract

The utility model relates to a double-station fatigue testing machine which comprises a frame-shaped rack, sliding rail structures are arranged on the two sides of the frame-shaped rack, and fatigue testing stations are arranged on the two sides of the frame-shaped rack respectively. The fatigue test station comprises an upper tool table and a lower tool table which are respectively arranged on the slide rail structure and can do lifting motion along the slide rail; an upper tool driving device is arranged in the frame-shaped rack, and the output ends of the upper tool driving device are connected to the upper tool tables on the two sides of the frame-shaped rack correspondingly to drive the upper tool tables on the two sides to do lifting motion. A lower tool driving device is arranged in the frame-shaped rack, and the output ends of the lower tool driving device are connected to the lower tool tables on the two sides of the frame-shaped rack correspondingly to drive the lower tool tables on the two sides to ascend and descend. The device has double stations, and the detection efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of air spring fatigue testing equipment, and in particular to a dual-station fatigue testing machine. Background Technology

[0002] With the rapid development of the automotive industry and other transportation technologies, the market demands for vehicle comfort, durability, and safety are increasing. As a key component of the vehicle suspension system, air springs are subjected to complex cyclic loads in actual use. The repeated application of these loads often leads to fatigue in the air spring materials, affecting their performance and lifespan. Traditional fatigue testing machines suffer from insufficient testing accuracy, low station utilization, and high testing costs when performing fatigue tests on air springs. There is a need for a fatigue testing machine with a simple structure, stable operation, and the ability to perform various forms of fatigue testing, as well as an increased number of stations, to meet the market demand for fatigue testing of air springs and similar components. Summary of the Invention

[0003] To overcome at least one of the problems mentioned above, this utility model provides a dual-station fatigue testing machine, which has two stations, is easy to use, and improves testing efficiency.

[0004] The technical solution adopted by this utility model to solve its technical problem is: a dual-station fatigue testing machine, including a frame frame, with slide rail structures on both sides of the frame frame, and fatigue testing stations respectively provided on both sides of the frame frame;

[0005] The fatigue testing station includes an upper fixture platform and a lower fixture platform, which are respectively installed on a slide rail structure and can move up and down along the slide rail.

[0006] The frame frame is equipped with an upper tooling drive device. The output end of the upper tooling drive device is connected to the upper tooling tables on both sides of the frame frame, driving the upper tooling tables on both sides to move up and down.

[0007] The frame is equipped with a lower tooling drive device. The output end of the lower tooling drive device is connected to the lower tooling tables on both sides of the frame, driving the lower tooling tables on both sides to move up and down.

[0008] Preferably, the upper tooling drive device includes an upper tooling support frame, a worm gear mechanism, a first motor, and an upper tooling output component. The first motor and the worm gear mechanism are mounted on the upper tooling support frame. The first motor drives the worm gear mechanism, and an output screw is provided at the lower end of the worm gear mechanism. The middle part of the upper tooling output component is screwed to the output screw, and the two ends of the upper tooling output component are respectively connected to the upper tooling tables on both sides.

[0009] Preferably, the upper tooling drive device further includes a pair of guide rods, which are longitudinally arranged on both sides of the output screw, pass through the upper tooling output component, and guide the upper tooling output component.

[0010] Preferably, the lower tooling drive device includes a lower tooling support frame, a lower tooling output shaft mounted on the lower tooling support frame, a second motor, a pair of turntables, and a crank; one end of the crank is eccentrically mounted on the turntable, and the other end is rotatably connected to the lower tooling table; the turntables are located at both ends of the lower tooling output shaft, driving the turntables to rotate; the lower tooling output shaft is driven by the second motor.

[0011] Preferably, the second motor is connected to the output shaft of the lower tooling via a belt.

[0012] Preferably, the conveying end of the second motor is equipped with a reduction gearbox.

[0013] Preferably, the frame is equipped with a first height sensor and a second height sensor, respectively, at the upper and lower heights, for monitoring the lifting stroke of the upper tooling platform.

[0014] Preferably, an upper auxiliary support frame is provided in the middle of the frame, and the lower end of the guide rod is fixed on the upper auxiliary support frame; the second height sensor is provided on the upper auxiliary support frame.

[0015] Preferably, the upper tooling stage and / or lower tooling stage are equipped with pressure sensors.

[0016] Preferably, it also includes an electrical control system and an optoelectronic display.

[0017] The beneficial effects of this utility model are: a dual-station fatigue testing machine, which has dual-station testing, simple structure, stable operation, and the motion law / mode of the upper and lower stations can be set independently, and can perform various forms of fatigue testing, so as to meet the market demand for fatigue testing of air springs and similar components. Attached Figure Description

[0018] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0019] Figure 1 This is a schematic diagram of the overall structure of the dual-station fatigue testing machine described in this utility model;

[0020] Figure 2 This is a side view of the dual-station fatigue testing machine described in this utility model.

[0021] Figure 3 This is a lower view of the structure of the dual-station fatigue testing machine described in this utility model;

[0022] Figure 4 This is a schematic diagram of another embodiment of the dual-station fatigue testing machine described in this utility model. Attached image description:

[0024] 1. Frame, 2. Guide rod, 3. Upper limit block, 4. Lower limit block, 5. Upper guide rail, 6. Upper tooling table, 7. First motor, 8. Worm gear mechanism, 9. Lower guide rail, 10. Lower tooling table, 11. Crank, 12. Turntable, 13. Lower tooling output shaft, 14. Bearing housing, 15. Driven pulley, 16. Second motor, 17. Gearbox, 18. Drive pulley, 19. Frequency sensor, 20. Belt, 21. Output screw, 22. First height sensor, 23. Second height sensor, 24. Pressure sensor, 25. Electrical control system, 26. Photoelectric display. Detailed Implementation

[0025] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the present invention, and therefore only show the components relevant to the present invention.

[0026] like Figure 1-3 The dual-station fatigue testing machine shown has symmetrical slide rail structures on both sides of the frame frame 1. The slide rail structures are equipped with fatigue testing stations, forming a symmetrical structure. The two stations work simultaneously, improving testing efficiency.

[0027] The fatigue testing stations on both sides have an upper fixture 6 and a lower fixture 10, which are respectively installed on the slide rail structure and can move up and down along the slide rail. During operation, an air spring is installed between the upper fixture 6 and the lower fixture 10. The upper fixture 6 and the lower fixture 10 repeatedly compress the air spring to conduct fatigue testing.

[0028] The slide rail structure consists of an upper guide rail 5 and a lower guide rail 9, which correspond to the installation of the upper tooling table 6 and the lower tooling table 10, respectively.

[0029] The upper guide rail 5 has an upper limit block 3 and a lower limit block 4 spaced apart, and the upper tooling table 6 moves between the upper limit block 3 and the lower limit block 4.

[0030] The frame frame 1 is equipped with an upper tooling drive device. The output end of the upper tooling drive device is connected to the upper tooling tables 6 on both sides of the frame frame 1, driving the upper tooling tables 6 on both sides to move up and down.

[0031] The upper tooling drive device includes an upper tooling support frame, a worm gear mechanism 8, a first motor 7, and an upper tooling output component. The first motor 7 and the worm gear mechanism 8 are mounted on the upper tooling support frame. The first motor 7 drives the worm gear mechanism 8. An output screw 21 is provided at the lower end of the worm gear mechanism 8. The middle part of the upper tooling output component is screwed to the output screw 21, and the two ends of the upper tooling output component are respectively connected to the upper tooling tables 6 on both sides.

[0032] The upper tooling drive device also includes a pair of guide rods 2, which are longitudinally arranged on both sides of the output screw 21, pass through the upper tooling output component, and guide the upper tooling output component.

[0033] The output screw 21 rotates, enabling the upper tooling table 6 to move up and down.

[0034] The frame frame 1 is equipped with a lower tooling drive device. The output end of the lower tooling drive device is connected to the lower tooling tables 10 on both sides of the frame frame 1, driving the lower tooling tables 10 on both sides to move up and down.

[0035] The lower tooling drive device includes a lower tooling support frame, a lower tooling output shaft 13 mounted on the lower tooling support frame, a second motor 16, a pair of turntables 12, and a crank 11; one end of the crank 11 is eccentrically mounted on the turntable 12, and the other end is rotatably connected to the lower tooling table 10; the turntables 12 are located at both ends of the lower tooling output shaft 13, driving the turntables 12 to rotate; the lower tooling output shaft 13 is driven by the second motor 16.

[0036] In this embodiment, the second motor 16 is connected to the lower tooling output shaft 13 via a belt 20.

[0037] See Figure 2 In this embodiment, the conveying end of the second motor 16 is provided with a reduction gearbox 18, and the output shaft of the reduction gearbox 18 is connected to the drive pulley 18.

[0038] The lower tooling support frame has bearing seats 14 on both sides for mounting the lower tooling output shaft 13. The lower tooling output shaft 13 has a driven pulley 15 in the middle for connecting the belt 20 with the driving pulley 18.

[0039] The second motor 16 outputs torque and works with the reduction gearbox 17 to reduce speed and increase torque, thereby achieving power output.

[0040] The driving pulley 18 receives the torque output from the reduction gearbox 17 and outputs the power to the drive shaft after reduction via the belt 20 and driven pulley 15. The lower tooling output shaft 13 transmits the torque output from the pulley to the turntable 12 through the bearing housing 14. The bearing housing 14 contains rolling bearings, which reduce frictional losses during transmission, ensure the stability of power transmission in the system, and maintain smooth system operation.

[0041] The crank 11 converts the rotational motion of the turntable 12 into the linear motion of the lower tooling table 10.

[0042] The turntable 12 is equipped with a count sensor 19, which provides accurate count data of the number of compressions of the lower tooling support frame in real time.

[0043] In this embodiment, the frame frame 1 is equipped with a first height sensor 22 and a second height sensor 23 at its upper and lower heights, respectively, for monitoring the lifting stroke of the upper tooling table 6. Specifically, they are installed on the upper guide rail 5 to limit the lifting stroke height of the upper tooling table 6 as needed.

[0044] The frame frame 1 has an upper auxiliary support frame in the middle, and the lower end of the guide rod 2 is fixed on the upper auxiliary support frame; the second height sensor 23 is set on the upper auxiliary support frame.

[0045] Among them, the upper tooling support frame and the upper auxiliary support frame have a positioning plate that spans the frame frame 1 laterally.

[0046] In this embodiment, pressure sensors 24 are provided on the upper fixture 6 and / or the lower fixture 10. These sensors are used to record and provide feedback on the pressure during fatigue testing.

[0047] See Figure 4 One embodiment of the dual-station fatigue testing machine also includes an electrical control system 25, which controls / monitors the working status of various electronic / electrical components, and has a photoelectric display 26 for operating the fatigue testing machine. The sensors include a height sensor, a cycle sensor, and a pressure sensor. Through the coordinated operation of multiple sensors, key parameters during the test are monitored and recorded in real time. The display system includes an electrical controller and a display, which collects and processes data in real time, and displays data trends and alarm information on the display.

[0048] Based on the above-described preferred embodiments of this utility model, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the technical concept of this utility model. The technical scope of this utility model is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. A dual-station fatigue testing machine, comprising a frame frame with slide rail structures on both sides, characterized in that: Fatigue testing stations are provided on both sides of the frame-shaped machine. The fatigue testing station includes an upper fixture table and a lower fixture table, which are respectively installed on a slide rail structure and can move up and down along the slide rail. The frame frame is equipped with an upper tooling drive device. The output end of the upper tooling drive device is connected to the upper tooling tables on both sides of the frame frame, driving the upper tooling tables on both sides to move up and down. The frame frame is equipped with a lower tooling drive device. The output end of the lower tooling drive device is connected to the lower tooling tables on both sides of the frame frame, driving the lower tooling tables on both sides to move up and down.

2. The dual-station fatigue testing machine according to claim 1, characterized in that: The upper tooling drive device includes an upper tooling support frame, a worm gear mechanism, a first motor, and an upper tooling output component. The first motor and the worm gear mechanism are mounted on the upper tooling support frame. The first motor drives the worm gear mechanism, and an output screw is provided at the lower end of the worm gear mechanism. The middle part of the upper tooling output component is screwed to the output screw, and the two ends of the upper tooling output component are respectively connected to the upper tooling tables on both sides.

3. The dual-station fatigue testing machine according to claim 2, characterized in that: The upper tooling drive device also includes a pair of guide rods, which are longitudinally arranged on both sides of the output screw, pass through the upper tooling output component, and guide the upper tooling output component.

4. The dual-station fatigue testing machine according to claim 1, characterized in that: The lower tooling drive device includes a lower tooling support frame, a lower tooling output shaft mounted on the lower tooling support frame, a second motor, a pair of turntables, and a crank; one end of the crank is eccentrically mounted on the turntable, and the other end is rotatably connected to the lower tooling table; the turntables are located at both ends of the lower tooling output shaft, driving the turntables to rotate; the lower tooling output shaft is driven by the second motor.

5. A dual-station fatigue testing machine according to claim 4, characterized in that: The second motor is connected to the output shaft of the lower tooling via a belt.

6. A dual-station fatigue testing machine according to claim 5, characterized in that: The second motor is equipped with a gearbox at its conveying end.

7. A dual-station fatigue testing machine according to claim 3, characterized in that: The frame is equipped with a first height sensor and a second height sensor, respectively, at the upper and lower heights, for monitoring the lifting stroke of the upper tooling platform.

8. A dual-station fatigue testing machine according to claim 7, characterized in that: An upper auxiliary support frame is provided in the middle of the frame-shaped machine frame, and the lower end of the guide rod is fixed on the upper auxiliary support frame; the second height sensor is provided on the upper auxiliary support frame.

9. A dual-station fatigue testing machine according to claim 1, characterized in that: Pressure sensors are provided on the upper tooling table and / or the lower tooling table.

10. A dual-station fatigue testing machine according to claim 9, characterized in that: It also includes electrical control systems and optoelectronic displays.

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