Shock absorber reverse force detection and total length measurement integrated device

Abstract

The utility model discloses a shock absorber reverse force detection and total length measurement integrated device which comprises a base. A mounting frame is arranged on the base, and a supporting plate and a workbench are arranged on the mounting frame; a workpiece clamping device and a detection mechanism are arranged on the workbench, and the workpiece clamping device is used for clamping a piston rod of the shock absorber placed on the supporting plate; the detection mechanism comprises a driving device A, a detection assembly and a mounting plate; the driving device A is fixed on the mounting plate and is used for driving the detection assembly to lift; the detection assembly comprises a bracket, and a displacement sensor and a pressure sensor which are arranged on the bracket; a PLC control box is arranged on the base, and the A driving device, the displacement sensor and the pressure sensor are electrically connected with the PLC control box. According to the shock absorber reverse force detection and total length measurement integrated device, through a specific structure, two work of shock absorber reverse force detection and shock absorber total length measurement can be completed at the same time, and the shock absorber reverse force detection and total length measurement integrated device has the advantages of being simple in structure and easy to operate.

Description

Technical Field

[0001] This utility model relates to a vibration damper testing device, specifically to an integrated device for detecting the reaction force and measuring the total length of a vibration damper. Background Technology

[0002] As a crucial component ensuring ride comfort during vehicle operation, the shock absorber works by using a reservoir filled with fluid. A piston rod drives a piston to move up and down within the reservoir, while the fluid flows through a valve, thus cushioning vibrations during driving. During this cushioning process, the force applied to the piston rod generates a counterforce. The magnitude of this counterforce at a specified displacement is a key indicator of the shock absorber's quality. Furthermore, the length of the shock absorber is also an important indicator of its performance.

[0003] In existing technologies, the detection of the reaction force and the measurement of the total length of a vibration damper are often performed by two separate devices. There is a lack of solutions that can simultaneously perform these two tasks on a single device, resulting in time wasted during the transfer of workpieces between different devices. Therefore, it is necessary to develop an integrated device capable of simultaneously detecting the reaction force and measuring the total length of a vibration damper. Utility Model Content

[0004] To address the shortcomings of existing technologies, this application provides an integrated device for detecting the reaction force and measuring the total length of a vibration damper. This integrated device, through a specific structure, can simultaneously perform both vibration damper reaction force detection and overall length measurement, and has the advantages of simple structure and ease of operation.

[0005] The technical solution of this application is as follows:

[0006] An integrated device for detecting the reaction force and measuring the total length of a vibration damper includes a base; a mounting frame is provided on the base, and a support plate and a worktable are provided on the mounting frame; a workpiece clamping device and a detection mechanism are provided on the worktable, the workpiece clamping device is used to clamp the piston rod of the vibration damper placed on the support plate; the detection mechanism includes an A-drive device, a detection component, and a mounting plate; the A-drive device is fixed to the mounting plate and is used to drive the detection component to move up and down; the detection component includes a bracket and a displacement sensor and a pressure sensor mounted on the bracket; a PLC control box is provided on the base, and the A-drive device, displacement sensor, and pressure sensor are electrically connected to the PLC control box.

[0007] Compared with the prior art, in the integrated device for detecting the reaction force and measuring the total length of the vibration damper in this application, the PLC control box controls the A drive device to drive the detection component to descend, so that the pressure sensor contacts the end of the piston rod of the vibration damper, causing the pressure sensor to generate a signal and feed it back to the PLC control box. The PLC control box automatically calculates the total length of the vibration damper based on the data from the displacement sensor (the distance the detection component descends). The PLC control box controls the A drive device to continue pressing down, and the pressure sensor detects the reaction force generated by the vibration damper. In this way, the vibration damper can simultaneously complete the two tasks of detecting the reaction force and measuring the total length of the vibration damper at one station, saving the time of transfer between different stations and thus improving the detection efficiency. In addition, the device of this application has the advantages of simple structure and easy operation.

[0008] As an optimization, in the aforementioned integrated device for detecting the reaction force and measuring the total length of the vibration damper, the base is equipped with a pallet lifting assembly, including a pair of lead screws (A) screwed to the pallet and a drive device (B) located at the top of the mounting frame. The drive device (B) is connected to the lead screws (A) via a synchronous belt and a synchronous pulley. The drive device (B) is electrically connected to the PLC control box. This structure allows for adjustable pallet height, enabling the detection of vibration dampers of different lengths. Furthermore, the lead screw and synchronous belt structure allows the built-in program to easily calculate the pallet displacement when adjusting the height, thus ensuring the accuracy of the vibration damper's total length measurement.

[0009] As an optimization, in the aforementioned integrated device for detecting the reaction force and measuring the total length of the vibration damper, the worktable is equipped with a detection lifting assembly, including a pair of guide columns slidably connected to the mounting plate, a B-type lead screw screwed to the mounting plate, and a C-type drive device fixed on the mounting frame; the C-type drive device and the B-type lead screw are connected by a synchronous belt and a synchronous pulley; the C-type drive device is electrically connected to the PLC control box. This structure makes the height of the detection mechanism adjustable, further improving the applicability of this measuring device.

[0010] As an optimization, in the aforementioned integrated device for detecting the shock absorber's reaction force and measuring its total length, an upper detection camera is provided on the mounting frame, and a lower detection camera is provided at the bottom of the mounting plate; the upper and lower detection cameras are used to limit the movement of the detection mechanism. This structure allows for limiting the movement of the detection mechanism during vertical adjustment, preventing collisions between the detection mechanism and other components due to operator error.

[0011] As an optimization, in the aforementioned integrated device for detecting the shock absorber's reaction force and measuring its total length, a buffer device is provided on the support between the pressure sensor and the worktable, including a pair of buffer springs and a contact plate. This structure, by using the contact plate instead of the pressure sensor to contact the piston rod of the shock absorber, increases the contact area and improves the sensitivity of the pressure sensor and the stability of the measurement.

[0012] As an optimization, in the aforementioned integrated device for detecting the shock absorber's reaction force and measuring its total length, the base, located outside the mounting frame, is equipped with a protective cover. The protective cover has an operation panel, which is electrically connected to the PLC control box. With this structure, the protective cover protects the internal components, and the operation panel facilitates operation by the staff.

[0013] As an optimization, in the aforementioned integrated device for detecting the shock absorber's reaction force and measuring its total length, a foot switch is provided below the base, and the foot switch is electrically connected to the PLC control box. The foot switch allows operators to coordinate their hand and foot movements, further improving work efficiency.

[0014] As an optimization, in the aforementioned integrated device for detecting the shock absorber's reaction force and measuring its total length, an indicator light is provided on the top of the protective cover. This indicator light is electrically connected to the PLC control box. The indicator light allows the operator to easily confirm the current status of the device and also serves as an alarm in case of a malfunction.

[0015] As an optimization, in the aforementioned integrated device for detecting the shock absorber's reaction force and measuring its total length, the base is equipped with casters and adjustable support feet, the height of which is adjustable. This structure facilitates the movement of the device and allows it to be fixed in place once in position.

[0016] As an optimization, in the aforementioned integrated device for detecting the reaction force and measuring the total length of the shock absorber, the A drive device is a cylinder, while the B and C drive devices are servo motors. The cylinder, as the A drive device, has a large output force, capable of meeting the pressure requirements of most shock absorbers; the servo motor has high precision, and in conjunction with the lead screw, it can further improve the accuracy of the total length measurement of the shock absorber. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the integrated device for detecting the shock absorber's reaction force and measuring its overall length, as described in this application. Figure 1 ;

[0018] Figure 2 This is a schematic diagram of the structure of the integrated device for detecting the shock absorber counterforce and measuring the total length of the shock absorber in this application, which is equipped with a shock absorber;

[0019] Figure 3 yes Figure 1 A schematic diagram of the middle section structure;

[0020] Figure 4 yes Figure 3 A schematic diagram of the middle section structure;

[0021] Figure 5 yes Figure 4 Another view;

[0022] Figure 6 yes Figure 4 A schematic diagram of the middle section structure;

[0023] Figure 7 This is a schematic diagram of the workpiece clamping device in this embodiment;

[0024] Figure 8 yes Figure 7 A schematic diagram of the middle part of the structure.

[0025] The labels in the attached diagram are as follows: 1-Base; 2-Mounting frame; 3-Panel; 4-Workbench; 5-Workpiece clamping device; 6-Detection mechanism, 601-A drive device, 602-Detection component, 6021-Bracket, 6022-Displacement sensor, 6023-Pressure sensor, 603-Mounting plate; 7-PLC control box; 8-Panel lifting assembly, 801-A lead screw, 802-B drive device; 9-Detection lifting assembly, 901-Guide column, 902-B lead screw, 903-C drive device; 10-Upper detection camera; 11-Lower detection camera; 12-Buffer device, 1201-Buffer spring, 1202-Contact plate; 13-Protective cover; 14-Operation panel; 15-Foot switch; 16-Indicator light; 17-Moving caster; 18-Adjustable support foot. Detailed Implementation

[0026] The present application will be further described below with reference to the accompanying drawings and embodiments, but this should not be construed as limiting the present application. In the following embodiments, content not described in detail or shown in detail in the accompanying drawings is common knowledge in the art.

[0027] Example (see) Figures 1 to 8 ):

[0028] An integrated device for detecting the reaction force and measuring the total length of a vibration damper includes a base 1; a mounting frame 2 is provided on the base 1, and a support plate 3 and a worktable 4 are provided on the mounting frame 2; a workpiece clamping device 5 and a detection mechanism 6 are provided on the worktable 4, the workpiece clamping device 5 being used to clamp the piston rod of the vibration damper placed on the support plate 3; the detection mechanism 6 includes an A-drive device 601, a detection component 602, and a mounting plate 603; the A-drive device 601 is fixed on the mounting plate 603 and is used to drive the detection component 602 to move up and down; the detection component 602 includes a bracket 6021 and a displacement sensor 6022 and a pressure sensor 6023 provided on the bracket 6021; a PLC control box 7 is provided on the base 1, and the A-drive device 601, displacement sensor 6022, and pressure sensor 6023 are electrically connected to the PLC control box 7 respectively.

[0029] In this embodiment, the base 1 is equipped with a pallet lifting assembly 8, including a pair of lead screws 801 screwed to the pallet 3 and a drive device 802 located on the top of the mounting frame 2. The drive device 802 and the lead screws 801 are connected by a synchronous belt and a synchronous pulley. The drive device 802 is electrically connected to the PLC control box 7. This structure allows the height of the pallet 3 to be adjusted, enabling the testing of vibration dampers of different lengths. Furthermore, the use of lead screws and a synchronous belt allows the built-in program to easily calculate the displacement of the pallet 3 when adjusting its height, thus ensuring the accuracy of the total length measurement of the vibration damper.

[0030] In this embodiment, the workbench 4 is equipped with a detection lifting assembly 9, including a pair of guide columns 901 slidably connected to the mounting plate 603, a B-type lead screw 902 screwed to the mounting plate 603, and a C-type drive device 903 fixedly mounted on the mounting frame 2; the C-type drive device 903 and the B-type lead screw 902 are connected by a synchronous belt and a synchronous pulley; the C-type drive device 903 is electrically connected to the PLC control box 7. This structure allows for height adjustment of the detection mechanism 6, further improving the applicability of this measuring device.

[0031] In this embodiment, an upper detection camera 10 is provided on the mounting frame 2, and a lower detection camera 11 is provided at the bottom of the mounting plate 603; the upper detection camera 10 and the lower detection camera 11 are used to limit the movement of the detection mechanism 6. This structure allows for limiting the movement of the detection mechanism 6 during vertical adjustment, preventing collisions between the detection mechanism and other components due to operator error.

[0032] In this embodiment, a buffer device 12 is provided on the bracket 6021 and located between the pressure sensor 6023 and the worktable 4, including a pair of buffer springs 1201 and a contact plate 1202. With this structure, the contact plate 1202 replaces the pressure sensor 6023 in contact with the piston rod of the vibration damper, increasing the contact area and improving the sensitivity and measurement stability of the pressure sensor 6023.

[0033] In this embodiment, a protective cover 13 is provided on the base 1 and outside the mounting frame 2. An operation panel 14 is provided on the protective cover 13, and the operation panel 14 is electrically connected to the PLC control box 7. With this structure, the protective cover 13 can protect the internal components, and the operation panel 14 facilitates operation by the staff.

[0034] In this embodiment, a foot switch 15 is provided below the base 1, and the foot switch 15 is electrically connected to the PLC control box 7. The foot switch 15 allows operators to coordinate their hand and foot movements, further improving work efficiency.

[0035] In this embodiment, an indicator light 16 is provided on the top of the protective cover 13, and the indicator light 16 is electrically connected to the PLC control box 7. The indicator light 16 facilitates the operator's confirmation of the current status of the device and serves as an alarm in case of device malfunction.

[0036] In this embodiment, the base 1 is provided with casters 17 and adjustable support feet 18 below it, and the height of the adjustable support feet 18 is adjustable. This structure facilitates the movement of the device, and it can be fixed in place after being moved into position.

[0037] In this embodiment, the A drive device 601 is a cylinder, and the B drive device 802 and C drive device 903 are servo motors. The cylinder, as the A drive device 601, has a large output force, which can meet the pressure requirements of most shock absorbers; the servo motor has high precision, and when used in conjunction with the lead screw, it can further improve the accuracy of the overall length measurement of the shock absorber.

[0038] The integrated device for detecting the shock absorber's reaction force and measuring its total length in this embodiment operates through the following steps (adjusting the height of the support plate 3 and the detection mechanism 6 beforehand via the operation panel 14):

[0039] ① Place the shock absorber on the support plate 3;

[0040] ②Step on the foot switch 15;

[0041] ③ The workpiece clamping device 5 clamps the piston rod of the vibration damper, while the A drive device 601 drives the detection component 602 to descend;

[0042] ④ When the pressure sensor 6023 comes into contact with the end of the piston rod of the shock absorber, the pressure sensor 6023 generates a signal and feeds it back to the PLC control box 7. The PLC control box 7 automatically calculates the total length of the shock absorber based on the data of the displacement sensor 6022 (the distance the detection component descends).

[0043] ⑤ The detection component 602 continues to press down, and the pressure sensor 6023 detects the counterforce generated by the shock absorber;

[0044] ⑥ Release the foot switch 15;

[0045] ⑦ The workpiece clamping device 5 opens, and at the same time, the A driving device 601 drives the detection component 602 to rise and reset.

[0046] ⑧ Remove the tested shock absorbers;

[0047] ⑨ Replace the shock absorber to be tested with a new one and repeat the above steps.

[0048] The foregoing general description of the utility model and its specific embodiments should not be construed as limiting the technical solution of the utility model. Those skilled in the art, based on the disclosure of this application, can add, reduce, or combine the disclosed technical features in the foregoing general description and / or specific embodiments (including examples) without departing from the constituent elements of the utility model, to form other technical solutions within the protection scope of this application.

Claims

1. An integrated device for detecting the reaction force and measuring the total length of a shock absorber, characterized in that: The system includes a base (1); a mounting frame (2) is provided on the base (1), and a tray (3) and a worktable (4) are provided on the mounting frame (2); a workpiece clamping device (5) and a detection mechanism (6) are provided on the worktable (4), and the workpiece clamping device (5) is used to clamp the piston rod of the damper placed on the tray (3); the detection mechanism (6) includes an A drive device (601), a detection component (602) and a mounting plate (603); the A drive device (601) is fixed on the mounting plate (603) and is used to drive the detection component (602) to rise and fall; the detection component (602) includes a bracket (6021) and a displacement sensor (6022) and a pressure sensor (6023) provided on the bracket (6021); a PLC control box (7) is provided on the base (1), and the A drive device (601), the displacement sensor (6022) and the pressure sensor (6023) are electrically connected to the PLC control box (7) respectively.

2. The integrated device for detecting the reaction force and measuring the total length of a vibration damper according to claim 1, characterized in that: The base (1) is provided with a pallet lifting assembly (8), including a pair of A screws (801) screwed to the pallet (3) and a B drive device (802) located on the top of the mounting frame (2); the B drive device (802) and the A screws (801) are connected by a synchronous belt and a synchronous pulley; the B drive device (802) is electrically connected to the PLC control box (7).

3. The integrated device for detecting the reaction force and measuring the total length of a vibration damper according to claim 2, characterized in that: The workbench (4) is provided with a detection lifting assembly (9), including a pair of guide columns (901) slidably connected to the mounting plate (603), a B screw (902) screwed to the mounting plate (603), and a C drive device (903) fixed on the mounting frame (2); the C drive device (903) and the B screw (902) are connected by a synchronous belt and a synchronous pulley; the C drive device (903) is electrically connected to the PLC control box (7).

4. The integrated device for detecting the reaction force and measuring the total length of a vibration damper according to claim 3, characterized in that: The mounting frame (2) is provided with an upper detection camera (10), and the bottom of the mounting plate (603) is provided with a lower detection camera (11); the upper detection camera (10) and the lower detection camera (11) are used to limit the movement of the detection mechanism (6).

5. The integrated device for detecting the reaction force and measuring the total length of a vibration damper according to claim 4, characterized in that: A buffer device (12) is provided on the bracket (6021) and between the pressure sensor (6023) and the worktable (4), including a pair of buffer springs (1201) and a contact plate (1202).

6. The integrated device for detecting the reaction force and measuring the total length of a vibration damper according to any one of claims 1-5, characterized in that: The base (1) is provided with a protective cover (13) on the outside of the mounting frame (2), and the protective cover (13) is provided with an operation panel (14), which is electrically connected to the PLC control box (7).

7. The integrated device for detecting the reaction force and measuring the total length of a vibration damper according to claim 6, characterized in that: A foot switch (15) is provided below the base (1), and the foot switch (15) is electrically connected to the PLC control box (7).

8. The integrated device for detecting the reaction force and measuring the total length of a vibration damper according to claim 7, characterized in that: The top of the protective cover (13) is provided with an indicator light (16), which is electrically connected to the PLC control box (7).

9. The integrated device for detecting the reaction force and measuring the total length of a vibration damper according to claim 8, characterized in that: The base (1) is provided with movable casters (17) and adjustable support feet (18) below it, and the height of the adjustable support feet (18) is adjustable.

10. The integrated device for detecting the reaction force and measuring the total length of a vibration damper according to claim 9, characterized in that: The A drive device (601) is a cylinder, and the B drive device (802) and the C drive device (903) are servo motors.

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