A contact sensor lifetime testing device and method

Abstract

The application provides a contact sensor life test device and a test method, wherein the contact sensor life test device comprises: a base body; a clamping assembly arranged on the base body and used for fixing a contact sensor, the contact sensor having an open state and a closed state; a trigger assembly arranged on the base body, the trigger assembly being movable towards or away from the contact sensor; when the trigger assembly contacts the contact sensor, the contact sensor is in the closed state, and when the trigger assembly is separated from the contact sensor, the contact sensor is in the open state; a driving assembly arranged on one side of the base body and used for driving the trigger assembly to move in a first direction; and a control assembly electrically connected to each contact sensor, the control assembly being used for monitoring the state of each contact sensor and recording the number of actions of the contact sensor, so that the life of the contact sensor is obtained, and the work efficiency is improved compared with action test of a handheld contact sensor.

Description

Technical Field

[0001] This application relates to the field of sensor technology, specifically to a contact sensor lifespan testing device. Background Technology

[0002] Parameter testing of contact sensors is an important part of the screening test for finished contact sensors. Currently, the product testing process is manual. The contact sensor is wired to the tester, the contact sensor is held by hand to perform the action test, and the data is recorded by the integrated tester for subsequent report generation.

[0003] With the continuous increase in annual output value, the utilization rate of existing test operators and testing equipment has basically reached saturation. Without increasing the number of operators and corresponding comprehensive testing instruments, it is difficult to further improve work efficiency, which seriously restricts the further increase of the company's production capacity. Summary of the Invention

[0004] In view of the above-mentioned defects or deficiencies in the prior art, this application aims to provide a contact sensor life testing device and testing method.

[0005] In a first aspect, this application proposes a contact sensor lifetime testing device, comprising:

[0006] Test bench;

[0007] Multiple life testing units are disposed on the test bench, and the life testing units include:

[0008] Base body;

[0009] A clamping assembly is disposed on the base body and is used to fix the contact sensor, which has an open state and a closed state.

[0010] A trigger component is disposed on the base body. The trigger component can move in a first direction toward or away from the contact sensor. When the trigger component touches the contact sensor, the contact sensor is in the closed state. When the trigger component is removed from the contact sensor, the contact sensor is in the open state.

[0011] A driving component is disposed on one side of the base body, and the driving component is used to drive the trigger component to move along the first direction;

[0012] A control component is electrically connected to each of the contact sensors. The control component is used to monitor the status of each of the contact sensors and record the number of times the contact sensors are activated.

[0013] According to the technical solution provided in the embodiments of this application, a pressure testing component is provided on the side of the trigger component away from the contact sensor, and the pressure testing component is used to measure the force applied by the trigger component to the contact sensor.

[0014] According to the technical solution provided in the embodiments of this application: a first column is provided on the base body; the clamping assembly includes:

[0015] A base plate is provided on the top of the first column; the base plate is provided with first uprights on both sides along the second direction, and the extension direction of the first uprights is a third direction, which is perpendicular to the first direction and the second direction.

[0016] The first abutting plate is disposed on the side of the first upright plate that is close to each other, and a first space is formed between the two first abutting plates. The first space is used to place the contact sensor.

[0017] A clamping assembly passes through the first upright plate and abuts against the first abutting plate. Rotating the clamping assembly can drive the first abutting plate to move along the second direction.

[0018] According to the technical solution provided in the embodiments of this application, the first upright plate is provided with a first through hole, the axial direction of the first through hole is the second direction, and the first abutting plate is provided with a guide post, which can pass through the first through hole.

[0019] According to the technical solution provided in the embodiments of this application, the first abutting plate is a rectangular plate, and the side of the first abutting plate away from the first column abuts against the contact sensor.

[0020] According to the technical solution provided in the embodiments of this application, a second abutment plate is provided on the side of the first abutment plate that is close to each other, and a second space is formed between the two second abutment plates. The second space is used to place the contact sensor. The second abutment plate has a first inclined portion and a second inclined portion, and a first included angle is formed between the first inclined portion and the second inclined portion. The opening direction of the first included angle is towards the contact sensor side.

[0021] According to the technical solution provided in the embodiments of this application, the driving component includes:

[0022] The second column is mounted on the base body, and the triggering component and the pressure testing component are provided on the top of the second column;

[0023] A lead screw, which passes through the first column and has one end passing through the second column and screwed to the second column;

[0024] A drive motor is located on one side of the base body, and its output end is connected to the end of the lead screw away from the second column. The drive motor can drive the second column to move the trigger component along the first direction.

[0025] According to the technical solution provided in the embodiments of this application, the base body is provided with a guide rail, the extension direction of the guide rail is the first direction, and the bottom of the second column is provided with a slider that matches the guide rail, the slider can slide on the guide rail along the first direction.

[0026] Secondly, this application proposes a test method for the contact sensor lifetime testing device as described above, comprising the following steps:

[0027] S100, Set the initial position and preset movement distance;

[0028] S200: Obtain the drive signal and motor drive parameters, wherein the motor drive parameters include a first speed parameter;

[0029] S300, Respond to the drive signal;

[0030] S400: Drive the drive component to move the trigger component from the initial position along the first direction at the first speed parameter, and when moving the preset moving distance, touch the contact sensor;

[0031] S500: Determine whether the contact sensor state switching signal has been received. If it has been received, the lifespan count is incremented by 1; if the state switching signal has not been received, the failure count is incremented by 1.

[0032] S600, Drive the drive component back to the starting position;

[0033] S700, Repeat steps S400-S600;

[0034] S800, Set the total number of faults;

[0035] S900. Determine whether the number of faults is equal to the total number of faults. If it is equal to the total number of faults, then obtain the cumulative number of lifespans, which is the lifespan value of the contact sensor.

[0036] According to the technical solution provided in the embodiments of this application, the first speed parameter is obtained through the following steps:

[0037] A preset duration is set, which is the time it takes for the driving component to drive the triggering component to move back and forth once;

[0038] Obtain ambient temperature information;

[0039] A smart algorithm is constructed to characterize the material deformation of the testing device at different temperatures;

[0040] The ambient temperature information is input into the intelligent algorithm to obtain the mechanical deformation amount;

[0041] The first speed parameter is obtained based on the mechanical deformation and the preset duration.

[0042] In summary, this application proposes a contact sensor testing device. A testing mechanism is set on a test bench, comprising a base body, a clamping component for fixing the contact sensor, a triggering component for triggering the contact sensor, and a driving component for moving the triggering component closer to or further away from the contact sensor. When the driving component drives the triggering component to touch the contact sensor, the contact sensor is in a closed state; when the driving component drives the triggering component to detach from the contact sensor, the contact sensor is in an open state. The device also includes a control component for monitoring the contact sensor's state and the number of actions. In use, the contact sensor is automatically triggered multiple times by the driving component, and the number of on / off cycles of the contact sensor is obtained through the control component, thus determining the contact sensor's lifespan. Compared to traditional handheld contact sensor testing, this method improves work efficiency and avoids limiting company production capacity due to testing limitations. Attached Figure Description

[0043] Figure 1 This is a schematic diagram of a life testing mechanism provided in an embodiment of this application;

[0044] Figure 2 A side view of a life testing mechanism provided in an embodiment of this application;

[0045] Figure 3 This is a schematic diagram of the structure of a contact sensor life testing device provided in an embodiment of this application;

[0046] Figure 4 This is a schematic diagram of the structure of the first and second abutment members when the contact sensor provided in this application has a spherical shape;

[0047] Figure 5 A flowchart illustrating the testing method of the contact sensor life testing device provided in this application embodiment.

[0048] The text labels in the figure represent: 100, base body; 110, first column; 130, photoelectric sensor; 131, photoelectric baffle; 200, clamping assembly; 210, base plate; 220, first upright plate; 230, first abutment plate; 231, guide column; 240, clamping assembly; 241, first bolt; 250, first height adjustment plate; 260, positioning plate; 270, second abutment plate; 271, first inclined section; 272, second inclined section; 300, contact sensor; 301, contact; 400, trigger assembly; 410, pressure testing assembly; 500, drive assembly; 510, second column; 520, second height adjustment plate; 530, lead screw; 540, drive motor; 550, guide rail; 600, control assembly; 700, touch screen; 800, test platform; 900, life testing mechanism. Detailed Implementation

[0049] The present application will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, only the parts relevant to the invention are shown in the accompanying drawings.

[0050] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.

[0051] Example 1

[0052] As mentioned in the background section, this application proposes a contact sensor lifetime testing device to address the problems in the prior art, such as... Figures 1-3 As shown, it includes:

[0053] Test platform 800; optionally, the test platform 800 is a cuboid;

[0054] Multiple life testing mechanisms 900 are disposed on the test bench 800. Using multiple life testing mechanisms 900 for testing eliminates the possibility of randomness in the test results. The multiple life testing mechanisms 900 are distributed along the length of the test bench 800. Each life testing mechanism 900 includes:

[0055] Base body 100; optionally, the base body 100 is a rectangular plate; the length direction of the base body 100 is perpendicular to the length direction of the test bench.

[0056] A clamping assembly 200 is disposed on the base body 100. The clamping assembly 200 is used to fix the contact sensor 300, which has an open state and a closed state. Optionally, the contact sensor 300 includes a limit switch, a relay, etc. The relay includes ordinary relays, magnetic latching relays, polarized relays, etc. The working principle of the contact sensor 300 is similar to that of a button, except that the button is turned on and off by pressing, while the contact sensor 300 is turned on and off by "bumping". In certain specific scenarios, the contact sensor 300 is the limit switch. The limit switch includes a contact 301. When in use, when the contact 301 is bumped, the contact 301 drives the normally open contact inside the contact sensor 300 to close, or the normally closed contact to open. Therefore, the contact sensor 300 has an open state and a closed state.

[0057] A trigger component 400 is disposed on the base body 100. The trigger component 400 can move along a first direction towards or away from the contact sensor 300. When the trigger component 400 touches the contact sensor 300, the contact sensor 300 is in the closed state; when the trigger component 400 disengages from the contact sensor 300, the contact sensor 300 is in the open state. Specifically, the trigger component 400 is spherical in shape, and has a first plane near the end of the contact sensor 400. The first plane is perpendicular to the extending direction of the base body 100, and the center of the first plane is coaxially arranged with the contact 301. The structure of the trigger component 400 increases the contact area with the contact 301, improving the stability of their contact.

[0058] A driving component 500 is disposed on one side of the base body 100, and the driving component 500 is used to drive the trigger component 400 to move along the first direction; wherein, the first direction is a horizontal direction, parallel to the long side of the base body 100.

[0059] A control component 600 is electrically connected to each of the contact sensors 300. The control component 600 is used to monitor the status of each of the contact sensors 300 and record the number of times each contact sensor 300 is activated. In use, the contact sensor 300 is automatically triggered multiple times by the drive component 500, and the number of times the contact sensor 300 is activated and deactivated is obtained by the control component 600, thereby determining the lifespan of the contact sensor 300. Compared with traditional handheld contact sensors for action testing, this method improves work efficiency and avoids limiting the company's production capacity due to testing limitations.

[0060] Furthermore, a pressure testing component 410 is provided on the side of the trigger component 400 away from the contact sensor 300. The pressure testing component 410 is used to measure the force applied by the trigger component 400 to the contact sensor 300. Optionally, the pressure testing component 410 is an S-type tension / compression sensor, model DYLY-107. The trigger component 400 is screwed to the outer wall of the pressure testing component 410. The pressure testing component 410 can detect the magnitude of the force applied to the contact sensor 300, preventing mechanical damage to the contact sensor 300 during the test due to excessive force. Before using the pressure testing component 410, pressure calibration is required. In certain specific scenarios, the accuracy of the calibrated pressure testing component 410 is: ±1.5% when the pressure range is 2.5Kg to 15Kg; ±2% when the pressure range is 1Kg to 2.5Kg; and ±5% when the pressure range is 0.5Kg to 1Kg.

[0061] Furthermore, such as Figure 1 , Figure 2 As shown, a first column 110 is provided on the base body 100; optionally, the first column 110 is rectangular in shape, and the first column 110 is fixed to the left end face of the base body 100 by screwing.

[0062] The clamping assembly 200 includes:

[0063] A base plate 210 is disposed on the top of the first column 110; the base plate 210 has first upright plates 220 on both sides along the second direction, the extension direction of the first upright plates 220 is a third direction, the third direction is perpendicular to the first direction and the second direction; wherein, the second direction is a horizontal direction, parallel to the short side of the base body 100, and the third direction is a vertical direction; optionally, the first upright plates 220 are rectangular plates, and two first upright plates 220 are screwed to the two end faces of the base plate 210;

[0064] The first abutment plate 230 is disposed on the side of the first upright plate 220 that is close to each other, and a first space is formed between the two first abutment plates 230. The first space is used to place the contact sensor 300. The first abutment plate 230 is not connected to the bottom plate 210, but is placed on the inner side of the first upright plate 220, close to the outer wall of the contact sensor 300.

[0065] A clamping assembly 240 passes through the first upright plate 220 and abuts against the first abutment plate 230. Rotating the clamping assembly 240 can drive the first abutment plate 230 to move along the second direction. Optionally, the first upright plate 220 has a first threaded hole in the middle, and a first bolt 241 passes through the first threaded hole and abuts against the end of the first abutment plate 230 away from the contact sensor 300. A handle is installed at the other end of the bolt 241 to facilitate rotation. By rotating the bolt 241, the first abutment plate 230 can drive the contact sensor 300 to move along the second direction. Further, the base plate 210 has a first height adjustment plate 250 near the first column 110. The first height adjustment plate 250 is fixedly connected to the first column 110 and the base plate 210 by screws. By adjusting the height of the first height adjustment plate 250 and the position of the first abutment plate 230, the contact 301 and the trigger assembly 400 are coaxially arranged, which improves the stability of the test.

[0066] In addition, the first column 110 is also provided with a positioning plate 260. The positioning plate 260 extends in a vertical direction and its bottom end is fixed to the first column 110. The side of the positioning plate 260 near the trigger component 400 is in close contact with the contact sensor 300. The positioning plate 260 is used to prevent the contact sensor 300 from moving away from the drive component 500 along the first direction.

[0067] Furthermore, the first upright plate 220 is provided with a first through hole, the axis of the first through hole being the second direction, and the first abutting plate 230 is provided with a guide post 231, the guide post 231 being able to pass through the first through hole; optionally, the guide post 231 can be screwed or welded to the first abutting plate 230, two first through holes are distributed on both sides of the first threaded hole, and two guide posts 231 are provided on the first abutting plate 230, the guide posts 231 being used to restrict the movement of the contact sensor 300 along the second direction.

[0068] Furthermore, the first abutment plate 230 is a rectangular plate, and the side of the first abutment plate 230 away from the first upright plate 220 abuts against the contact sensor 300; wherein, in certain specific scenarios, the contact sensor 300 is cuboid in shape, and the contact sensor 300 can be locked by the two first abutment plates 230 and the positioning plate 260.

[0069] Example 2

[0070] The similarities to Example 1 will not be repeated here, the difference being: further, as Figure 4As shown, the first abutment plate 230 has a second abutment plate 270 on its adjacent side, and a second space is formed between the two second abutment plates 270. The second space is used to place the contact sensor 300. The second abutment plate 270 has a first inclined portion 271 and a second inclined portion 272, and a first included angle is formed between the first inclined portion 271 and the second inclined portion 272. The opening direction of the first included angle is towards the contact sensor 300. In certain specific scenarios, the contact sensor 300 is spherical. If the first abutment plate 230 directly contacts the contact sensor 300, when the trigger component 400 applies force to the contact sensor 300... When force is applied, the contact sensor 300 is at risk of moving upwards. A second angle is formed between the first inclined portion 271 and the base plate 210, with the opening direction of the second angle pointing away from the other second abutment plate 270. The second inclined portion 272 is connected to the top of the first inclined portion 271 away from the base plate 210. A third angle is formed between the extension line of the second inclined portion 272 and the base plate 210, with the opening direction of the third angle pointing towards the side closer to the other second abutment 270. Therefore, when the contact sensor 300 is placed in the second space, the second inclined portion 272 can prevent the contact sensor 300 from moving upwards, improving the stability of the test.

[0071] Example 3

[0072] Based on Example 1 or Example 2, such as Figure 1 and Figure 2 As shown, the driving component 500 further includes:

[0073] The second column 510 is mounted on the base body 100. The trigger assembly 400 and the pressure testing assembly 410 are provided on the top of the second column 510. Optionally, the second column 510 is a cuboid. The top of the second column 510 is provided with a second height adjustment plate 520. The second height adjustment plate 520 is screwed to the second column 510. The height of the second height adjustment plate 520 can be adjusted according to the height of the different contact sensors 300, so that the trigger assembly 400 and the contact 301 are coaxially arranged.

[0074] A lead screw 530 passes through the first column 110, and one end of the lead screw 530 passes through the second column 510 and is screwed to the second column 510. Specifically, the second column 510 has a second threaded hole in the middle, and the axis of the second threaded hole is horizontal. The lead screw 530 has an external thread that matches the second threaded hole. The second column 510 is sleeved on the lead screw 530 and screwed to the lead screw 530.

[0075] A drive motor 540 is located on one side of the base body 100, and its output end is connected to the end of the lead screw 530 away from the second column 510. The drive motor 540 can drive the second column 510 to move the trigger component 400 along the first direction. The drive motor 540 drives the contact sensor 300 to move via the lead screw, and the rotation of the drive motor 540 drives the lead screw 530 to rotate. The rotation of the lead screw 530 is converted into linear movement of the second column 510, thus enabling the second column 510 to move the trigger component 400 along the first direction. Optionally, the drive motor 540 is a servo motor. Before testing, the drive component 500 needs to be calibrated for displacement. The displacement accuracy of this application is ±0.05mm.

[0076] Furthermore, the base body 100 is provided with a guide rail 550, the extension direction of the guide rail 550 is the first direction, and the bottom of the second column 510 is provided with a slider that matches the guide rail 550. The slider can slide on the guide rail 550 along the first direction. The guide rail 550 and the slider provide guidance for the second column 510 to drive the trigger component 400 to move.

[0077] Furthermore, such as Figure 3 As shown, this testing device includes multiple life testing mechanisms 900, which share a single control component 600. Optionally, as shown, the control component 600 is a control cabinet electrically connected to the pressure testing component 410, the contact sensor 300, and the drive component 500 of each life testing mechanism 900. The control cabinet can control the multiple life testing mechanisms 900 to operate synchronously, or select any one or several to operate. The drive signal is issued by the control cabinet. The testing device also includes a touch screen 700, which is electrically connected to the control component 600. Parameters can be set and start / stop controlled on the touch screen 700. According to the parameters set on the touch screen 700, the drive motor 540 is controlled to rotate forward and reverse, thereby moving the trigger component 400 to trigger the contact sensor 300. When the contact sensor 300 malfunctions and the control component 600 cannot receive the state transition signal of the contact sensor 300, the control component 600 controls the life testing mechanism to automatically stop and issues an alarm.

[0078] Example 4

[0079] Based on Embodiment 3, this application also proposes a test method for the contact sensor lifetime testing device described above, such as... Figure 5 As shown, it includes the following steps:

[0080] S100: Set the initial position and preset movement distance; wherein, two photoelectric sensors 130 are provided on the base body 100 along its length direction, and their beam direction is vertical; a photoelectric baffle 131 is provided on the second column; the photoelectric sensors 130 are electrically connected to the control component 600; when the photoelectric baffle 131 blocks the beam of the photoelectric sensor 130, the photoelectric sensor 130 sends a positioning signal; one of the photoelectric sensors 130 is located at the end of the base body 100 away from the drive motor 540, which is the initial position, and the other photoelectric sensor 130 is located near the base body 100. On the side of the contact sensor 300, when the photoelectric sensor 130 sends a positioning signal, it indicates that the second column 510 drives the trigger component 400 to reach the area close to the contact sensor 300. The preset moving distance is the distance that the second column 510 drives the trigger component 400 to move from the initial position toward the contact sensor 300. This distance is calculated based on factors such as the length of the contact 301 of the contact sensor 300, the initial position, and the length of the trigger component 400. The distance that the drive motor 540 moves toward the side close to the contact sensor 300 is the preset moving distance.

[0081] S200: Acquire drive signal and motor drive parameters, wherein the motor drive parameters include a first speed parameter; wherein, the drive parameters are set on the touch screen 700, and the drive parameters include parameters such as the preset moving distance and the speed of the drive motor 540; after the parameters are set, a start signal, i.e. the drive signal, is sent to the control component 600 through the touch screen 700.

[0082] S300, Respond to the drive signal;

[0083] S400, drive the drive component 500 to move the trigger component 400 from the initial position along the first direction at the first speed parameter, and when moving the preset moving distance, touch the contact sensor 300; the preset moving distance is set according to the state that can trigger the contact sensor 300 to switch, so when the trigger component 400 moves the preset moving distance, the contact sensor 300 sends the switched state signal to the control component 600. For example, the contact sensor 300 is a normally open limit switch. In its initial state, the state signal in the control component 600 is 0. When the trigger component 400 touches the limit switch, the limit switch switches to a closed state, and the state signal in the control component 600 switches to 1.

[0084] S500: Determine whether the state switching signal of the contact sensor 300 has been received. If it has been received, the lifespan count is incremented by 1. If the state switching signal has not been received, the failure count is incremented by 1. If the state signal of the contact sensor 300 in the control component 600 changes from 1 to 0 or from 0 to 1, the lifespan count is incremented by 1. Otherwise, the failure count is incremented by 1.

[0085] S600, drive the drive component 500 back to the starting position; after the drive component 500 has moved the preset distance, it returns to the starting position;

[0086] S700, Repeat steps S400-S600;

[0087] S800, Set the total number of faults;

[0088] S900. Determine whether the number of faults is equal to the total number of faults. If it is equal to the total number of faults, obtain the accumulated number of lifespans, which is the lifespan value of the contact sensor 300. If the contact sensor 300 does not switch states after being touched by the trigger component, it does not necessarily mean that the contact sensor 300 is damaged. In order to eliminate the randomness of multiple factors, the total number of faults is set. When the number of faults reaches the total number of faults, it means that the contact sensor 300 is damaged. At this time, the accumulated number of lifespans is the lifespan value of the contact sensor 300.

[0089] Further, obtaining the first speed parameter includes the following steps:

[0090] A preset duration is set, which is the time it takes for the driving component 500 to drive the triggering component 400 to move back and forth once; that is, to ensure that the contact sensor 300 is triggered at the same frequency.

[0091] Acquire ambient temperature information; due to the thermal expansion and contraction of the materials of the life testing device under different ambient temperatures, this mechanical deformation will change the movement distance of the trigger component 400, so the impact of temperature change on the test must be considered; a temperature sensor is provided at the test site, and the temperature sensor is electrically connected to the control component 600; the control component 600 will read the torque of the drive motor 540 in real time during operation. When the torque is slightly larger, it indicates that the mechanical deformation has increased, and the lead screw has generated greater resistance. In order to ensure operation at the same frequency... In this environment, the drive motor 540 will increase its torque output. If the torque exceeds the limit, the drive motor 540 will stop working, and the control component 600 will issue an alarm. If the torque reading of the drive motor 540 is slightly lower, it indicates that the mechanical deformation is smaller. In order to ensure the same frequency of operation, the drive motor 540 will reduce its torque output. Similarly, if a very small value appears, there may be a problem with the fit between the coupling and the shaft inside the drive motor 540. In this case, the drive motor 540 will stop, and the control component 600 will issue an alarm.

[0092] An intelligent algorithm is constructed to characterize the material deformation of the testing device under different temperatures; the CPU of the control component 600 is equipped with the intelligent algorithm, which outputs different speed signals to the motor according to different ambient temperatures;

[0093] The ambient temperature information is input into the intelligent algorithm to obtain the mechanical deformation amount;

[0094] Based on the mechanical deformation and the preset duration, the first speed parameter is obtained; the intelligent algorithm can obtain the mechanical deformation according to the ambient temperature, and the control component 600 acquires the mechanical deformation and the output torque, speed and other parameters of the drive motor 540 in real time, and adjusts the speed of the drive motor 540 according to the mechanical deformation and the required operating frequency, and the adjusted speed is the first speed; therefore, this application takes into account the influence of test temperature on the test results and improves the accuracy of the test results.

[0095] This document uses specific examples to illustrate the principles and implementation methods of this application. The descriptions of the above embodiments are only for the purpose of helping to understand the methods and core ideas of this application. The above descriptions are only preferred embodiments of this application. It should be noted that due to the limitations of written expression, while there are objectively infinite specific structures, those skilled in the art can make several improvements, modifications, or changes without departing from the principles of this invention, and can also combine the above technical features in an appropriate manner. These improvements, modifications, changes, or combinations, or the direct application of the inventive concept and technical solution to other situations without modification, should all be considered within the scope of protection of this application.

Claims

1. A contact sensor lifespan testing device, characterized in that, include: Test stand (800); Multiple life testing units (900) are disposed on the test bench (800), and each life testing unit (900) includes: Base body (100); A clamping assembly (200) is disposed on the base body (100) and is used to fix the contact sensor (300). The contact sensor (300) has an open state and a closed state. A trigger component (400) is disposed on the base body (100). The trigger component (400) can move in a first direction toward or away from the contact sensor (300). When the trigger component (400) touches the contact sensor (300), the contact sensor (300) is in the closed state. When the trigger component (400) disengages from the contact sensor (300), the contact sensor (300) is in the open state. A drive assembly (500) is disposed on one side of the base body (100), and the drive assembly (500) is used to drive the trigger assembly (400) to move along the first direction; A control component (600) is electrically connected to each of the contact sensors (300), and the control component (600) is used to monitor the status of each of the contact sensors (300) and record the number of times the contact sensors (300) are activated; The control component (600) is also used for: Set the initial position and preset movement distance; A preset duration is set, which is the time it takes for the driving component (500) to drive the trigger component (400) to move back and forth once; Obtain ambient temperature information; A smart algorithm is constructed to characterize the material deformation of the testing device at different temperatures; The ambient temperature information is input into the intelligent algorithm to obtain the mechanical deformation amount; Based on the mechanical deformation and the preset duration, the first speed parameter is obtained; The driving component (500) drives the trigger component (400) to move from the initial position along the first direction at the first speed parameter, and when moving the preset moving distance, it touches the contact sensor (300).

2. The contact sensor lifespan testing device according to claim 1, characterized in that, The trigger component (400) has a pressure testing component (410) on the side away from the contact sensor (300), and the pressure testing component (410) is used to measure the force applied by the trigger component (400) to the contact sensor (300).

3. The contact sensor lifespan testing device according to claim 1, characterized in that, The base body (100) is provided with a first column (110); the clamping assembly (200) includes: A base plate (210) is provided on the top of the first column (110); the base plate (210) has first upright plates (220) on both sides along the second direction, the extension direction of the first upright plates (220) is the third direction, and the third direction is perpendicular to the first direction and the second direction; The first abutment plate (230) is disposed on the side of the first upright plate (220) that is close to each other, and a first space is formed between the two first abutment plates (230), the first space being used to place the contact sensor (300). A clamping assembly (240) passes through the first upright plate (220) and abuts against the first abutting plate (230). Rotating the clamping assembly (240) can drive the first abutting plate (230) to move along the second direction.

4. The contact sensor life testing device according to claim 3, characterized in that, The first upright plate (220) is provided with a first through hole, the axis of the first through hole is the second direction, and the first abutting plate (230) is provided with a guide post (231), the guide post (231) can pass through the first through hole.

5. The contact sensor lifespan testing device according to claim 4, characterized in that, The first abutting plate (230) is a rectangular plate, and the side of the first abutting plate (230) away from the first upright plate (220) abuts against the contact sensor (300).

6. The contact sensor lifespan testing device according to claim 5, characterized in that, The first abutment plate (230) is provided with a second abutment plate (270) on the side close to each other, and a second space is formed between the two second abutment plates (270), the second space being used to place the contact sensor (300); the second abutment plate (270) has a first inclined portion (271) and a second inclined portion (272), a first included angle is formed between the first inclined portion (271) and the second inclined portion (272), and the opening direction of the first included angle is towards the contact sensor (300).

7. The contact sensor lifespan testing device according to claim 3, characterized in that, The drive component (500) includes: The second column (510) is mounted on the base body (100), and the trigger component (400) and the pressure test component (410) are mounted on the top of the second column (510). A lead screw (530) passes through the first column (110), and one end of the lead screw (530) passes through the second column (510) and is screwed to the second column (510); A drive motor (540) is located on one side of the base body (100), and its output end is connected to the end of the lead screw (530) away from the second column (510). The drive motor (540) can drive the second column (510) to move the trigger component (400) along the first direction.

8. The contact sensor lifespan testing device according to claim 7, characterized in that, The base body (100) is provided with a guide rail (550), the extension direction of the guide rail (550) is the first direction, and the bottom of the second column (510) is provided with a slider that matches the guide rail (550), the slider can slide on the guide rail (550) along the first direction.

9. A test method for the contact sensor life testing device as described in any one of claims 1-8, characterized in that, Includes the following steps: S100, Set the initial position and preset movement distance; S200: Obtain the drive signal and motor drive parameters, wherein the motor drive parameters include a first speed parameter; S300, Respond to the drive signal; S400, drive the drive component (500) to move the trigger component (400) from the initial position along the first direction at the first speed parameter, and when moving the preset moving distance, touch the contact sensor (300). S500: Determine whether the state switching signal of the contact sensor (300) has been received. If it has been received, the lifespan count is incremented by 1. If the state switching signal has not been received, the failure count is incremented by 1. S600, drive the drive component (500) back to the starting position; S700, Repeat steps S400-S600; S800, Set the total number of faults; S900. Determine whether the number of faults is equal to the total number of faults. If it is equal to the total number of faults, obtain the cumulative number of lifespans, which is the lifespan value of the contact sensor (300). The acquisition of the first speed parameter includes the following steps: A preset duration is set, which is the time it takes for the driving component (500) to drive the trigger component (400) to move back and forth once; Obtain ambient temperature information; A smart algorithm is constructed to characterize the material deformation of the testing device at different temperatures; The ambient temperature information is input into the intelligent algorithm to obtain the mechanical deformation amount; The first speed parameter is obtained based on the mechanical deformation and the preset duration.

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