Switch service life test equipment
By designing automated switch life test equipment, using linear modules and laser displacement sensors to achieve accurate clamping and testing of switches of different sizes, the problem of large test errors and inapplicable switches of different sizes in the existing technology is solved, and the accuracy of testing is improved and efficiency, automatic operation is achieved.
Patent Information
- Application Number
- CN202420682311.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-03
- Publication Date
- 2025-01-03
- Estimated Expiration
- 2034-04-03
AI Technical Summary
Existing switch life test equipment relies on visual manual adjustment, with large errors and no applicable switches of different sizes, resulting in inaccurate test data and high production costs, and uncommon clamping fixtures.
A switch life test device including a test machine, a first linear module, a fixture assembly, a caliper and a laser displacement sensor is designed. The caliper is driven by a linear module to perform an open and close test. The laser displacement sensor recognizes the switch profile and controls the caliper. Move and force sensors detect force values to realize automated testing.
It greatly improves the accuracy of the test data, applies switches of different sizes, improves testing efficiency, realizes automation, and avoids the damage caused by the equipment to the staff.
Smart Images
Figure CN222299126U_ABST
Abstract
Description
Technical Field
[0001] The present disclosure relates to the technical field of switch testing, and in particular to a switch life testing device. Background Art
[0002] In our daily use of laptops, for confidentiality reasons, the camera needs to be equipped with a switch to prevent peeping. For example, a camera switch is added to the right or left side of the laptop body, and the camera circuit is controlled by the camera switch to turn the camera on or off. In this case, the feel and reliability of the switch are particularly important. And service life is one of the key factors in reliability inspection.
[0003] We use detection equipment to simulate the user's repeated cycles of opening and closing states to achieve the purpose of switch life testing. The specific plan is that before the test begins, the switch clamping fixture needs to be installed on the active module; then the sample to be tested is placed on the test machine, and the machine is manually adjusted visually so that the clamping fixture clamps the switch. The test parameters are set and started by the computer. The switch cycles a set number of times in the open and closed states; after the test, the sample to be tested needs to be manually taken and the test data recorded. Among them, the clamping fixture needs to be customized according to the size of the switch on the sample to be tested. The clamping fixture generally sets a sheet-like fixed plate at the clamping position, and then opens a bayonet matching the switch on the fixed plate so that the clamping fixture can clamp the switch through the bayonet.
[0004] The disadvantage of the above scheme is that the existing testing equipment completely relies on visual manual adjustment of the machine to make the clamping fixture clamp the switch, which has a large error; and because the bayonet on the clamping fixture needs to be able to be smoothly removed from the switch after the test, there is a certain gap between the switch and the bayonet, which makes the clamping fixture easily offset during the cycle opening and closing test, resulting in inaccurate test data. In addition, the camera switches of different test machines have different sizes, and the clamping fixture needs to be re-molded and made, which increases production costs and makes the clamping fixtures not universal. Utility Model Content
[0005] The present disclosure provides a switch life test device to at least solve one of the technical problems existing in the prior art.
[0006] According to a first aspect of the present disclosure, a switch life test device is provided, including a test machine, and further comprising:
[0007] A first linear module, wherein the first linear module has an output end capable of reciprocating linear motion;
[0008] A fixture assembly, wherein the fixture assembly is configured to exert a pressing force on the sample to be tested in the horizontal direction and the vertical direction, so that the sample to be tested is fixed on the test machine;
[0009] A caliper is configured to have a clamping force on the switch of the sample to be tested, and the caliper is installed on the output end of the first linear module through a connecting component, and is driven by the first linear module to drive the switch to perform a cyclic test in an open or closed state.
[0010] In one embodiment, the clamp assembly includes a first clamp and a second clamp, wherein the first clamp is respectively arranged close to the first side and the second side of the sample to be tested so as to fix the sample to be tested in a horizontal direction; and the second clamp is arranged close to the third side of the sample to be tested so as to fix the sample to be tested in a vertical direction.
[0011] In one embodiment, the first fixture and / or the second fixture includes a first fixed seat, a first push rod and a first stopper, the first fixed seat is fixed to the test machine, the first push rod is passed through the first fixed seat and threadedly connected thereto, and the first stopper is installed at the end of the first push rod.
[0012] In one embodiment, the first fixture and / or the second fixture includes a second fixed seat, a driving mechanism and a second stopper, the second fixed seat is fixed to the test machine, the driving mechanism has a retractable output end and the driving mechanism is installed on the second fixed seat, and the output end of the driving mechanism is installed with the second stopper.
[0013] In one embodiment, the connecting component includes a movable module, a first end of which is mounted on the output end of the first linear module and is driven by the first linear module to reciprocate along a straight line relative to the switch, and a second end of the movable module is connected to the caliper.
[0014] In one embodiment, the connecting assembly also includes a second linear module, and the caliper includes a first clamping part and a second clamping part; the two fixed ends of the second linear module are installed on the second end of the movable module, and the first clamping part is fixed to the fixed end of the second linear module and / or the second end of the movable module; the second clamping part is installed at the output end of the second linear module, and is driven by the second linear module to approach or move away from the first clamping part to clamp or release the switch.
[0015] In one embodiment, it also includes a third linear module, a laser displacement sensor and a controller. The laser displacement sensor is installed on the output end of the third linear module and is driven by the third linear module to reciprocate along a straight line relative to the switch. The laser displacement sensor is used to identify the outline of the switch and the outline of the caliper and transmit the image to the controller. The controller processes the received image to determine the movement distance of the caliper.
[0016] In one embodiment, the controller is also electrically connected to a second linear module, and the controller controls the second linear module to operate according to the moving distance of the caliper so that the second clamping part of the caliper moves linearly close to the switch, thereby making the second clamping part cooperate with the first clamping part to clamp the switch.
[0017] In one possible implementation manner, the controller is also electrically connected to the first linear module, and the controller controls the operation of the first linear module according to the moving distance of the caliper so that the movable module synchronously drives the first clamping part to move toward the switch direction, thereby making the first clamping part cooperate with the second clamping part to clamp the switch.
[0018] In one embodiment, a force sensor is further included. The force sensor is installed in the sample to be tested and is located at both ends of the switch. The force sensor is used to detect the force value of the switch during a cycle test in an open or closed state and transmit the force value information to a controller, which records and generates a force value peak graph.
[0019] Compared with the prior art, the advantages of the switch life testing equipment of the present application are: 1) the switch life testing equipment of the present application greatly improves the accuracy of the test data; 2) the switch life testing equipment of the present application can be suitable for test samples of different sizes and switches of different sizes by setting calipers, linear modules, and fixture components, and has strong compatibility, making the switch life testing equipment of the present application universal; 3) the switch life testing equipment of the present application does not require an operator to operate it all the time, which greatly improves the test efficiency; 4) the switch life testing equipment of the present application can be automated to avoid harm to staff during equipment testing.
[0020] It should be understood that the content described in this section is not intended to identify the key or important features of the embodiments of the present disclosure, nor is it intended to limit the scope of the present disclosure. Other features of the present disclosure will become easily understood through the following description. BRIEF DESCRIPTION OF THE DRAWINGS
[0021] The above and other objects, features and advantages of the exemplary embodiments of the present disclosure will become readily understood by reading the detailed description below with reference to the accompanying drawings. In the accompanying drawings, several embodiments of the present disclosure are shown in an exemplary and non-limiting manner, in which:
[0022] In the drawings, the same or corresponding reference numerals represent the same or corresponding parts.
[0023] Figure 1 A schematic diagram showing the structure of a switch life test device according to an embodiment of the present disclosure is shown;
[0024] Figure 2A schematic diagram showing the structure of the switch life test device according to an embodiment of the present disclosure when testing a sample to be tested;
[0025] Figure 3 A schematic diagram showing the structure of the first clamp assembly connected to the linear module according to an embodiment of the present disclosure;
[0026] Figure 4 The schematic diagram shows the structure of the second clamp assembly connected to the linear module according to the embodiment of the present disclosure. Figure 1 ;
[0027] Figure 5 The schematic diagram shows the structure of the second clamp assembly connected to the linear module according to the embodiment of the present disclosure. Figure 2 ;
[0028] Figure 6 Shows Figure 5 Disassembly instructions Figure 1 ;
[0029] Figure 7 Shows Figure 5 Disassembly instructions Figure 2 ;
[0030] Figure 8 The switch life test device of the embodiment of the present disclosure is shown in FIG. Figure 1 ;
[0031] Fig. 9 The switch life test device of the embodiment of the present disclosure is shown in FIG. Figure 2 ;
[0032] Fig.10 The switch life test device of the embodiment of the present disclosure is shown in FIG. Figure 3 .
[0033] Explanation of numbers in the figure: 1-testing machine, 2-first linear module, 3-fixture assembly, 4-caliper, 5-sample to be tested, 6-movable module, 7-second linear module, 8-third linear module, 9-laser displacement sensor, 10-laptop computer, 31-first fixture, 32-second fixture, 41-first clamping part, 42-second clamping part, 51-switch, 311-first fixed seat, 312-first push rod, 313-first stopper, 321-second fixed seat, 322-driving mechanism, 323-second stopper. DETAILED DESCRIPTION
[0034] In order to make the purpose, features, and advantages of the present disclosure more obvious and easy to understand, the technical solutions in the embodiments of the present disclosure will be clearly and completely described below in conjunction with the drawings in the embodiments of the present disclosure. Obviously, the described embodiments are only part of the embodiments of the present disclosure, not all of the embodiments. Based on the embodiments in the present disclosure, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present disclosure.
[0035] The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the present invention, its application, or uses.
[0036] Techniques and equipment known to ordinary technicians in the relevant art may not be discussed in detail, but where appropriate, the techniques and equipment should be considered part of the specification.
[0037] It should be noted that like reference numerals and letters refer to similar items in the following figures, and therefore, once an item is defined in one figure, it need not be further discussed in subsequent figures.
[0038] According to an embodiment of the present disclosure, the utility model provides a switch life test device. Figure 1-2 As shown, the switch life test equipment includes a test machine 1, and also includes a first linear module 2, a fixture assembly 3 and a caliper 4. The first linear module 2 is installed on the test machine 1, and the first linear module 2 has an output end 21 that can perform reciprocating linear motion; the fixture assembly 3 is configured to have a clamping force on the sample to be tested 5 in the horizontal and vertical directions, so that the sample to be tested 5 is fixed on the test machine 1; the caliper 4 is configured to have a clamping force on the switch 51 of the sample to be tested 5, and the caliper 4 is installed on the output end 21 of the first linear module 2 through a connecting assembly, and is driven by the first linear module 2 to drive the switch 51 to perform a cyclic test in an open or closed state.
[0039] In this embodiment, the caliper 4 is used to clamp the switch 51. When the caliper 4 is in the clamped state, it and the connecting component are driven by the first linear module 2 to perform linear reciprocating motion synchronously, thereby achieving the purpose of cyclic testing of the switch 51 in the open or closed state.
[0040] In this embodiment, for example, the first linear module 2 has an output end 21 capable of reciprocating linear motion, so the first linear module 2 can be specifically set as a screw-type linear module or a synchronous belt-type linear module, and the screw-type linear module can be a ball screw module, a screw slider module or a linear guide module. For example, when the first linear module 2 adopts a screw slider module, the screw slider module has a slider capable of reciprocating linear motion, a connecting component is fixed on the slider, the connecting component is connected to the caliper 4, and the screw slider module drives the caliper and the connecting component to synchronously reciprocate linear motion.
[0041] In this embodiment, the caliper 4 is configured to have a clamping force on the switch 51, which can ensure the stability of the test and the accuracy of the test data results when the switch 51 is cycled in the open or closed state. The caliper 4 of the present application can be applied to different sizes of switches 51, and has strong compatibility, making the device of the present application universal.
[0042] The switch life test device has a simple structure and is convenient for testing, and can test switches 51 of different samples 5 to be tested. For example, when testing the switch of a camera of a notebook computer, different switch models can be used to improve the test efficiency.
[0043] In one embodiment, the clamp assembly 3 includes a first clamp 31 and a second clamp 32. The first clamp 31 is respectively arranged close to the first side and the second side of the sample 5 to be tested so that the sample 5 to be tested is fixed in the horizontal direction; the second clamp 32 is arranged close to the third side of the sample 5 to be tested so that the sample 5 to be tested is fixed in the vertical direction.
[0044] For example, the first clamp 31 is respectively arranged near the left and right sides of the sample 5 to be tested, and the second clamp is arranged near the front side of the sample 5 to be tested. The first clamp 31 and the second clamp 32 can adopt the same structure. Figure 4 As shown, taking the first fixture 31 as an example, the first fixture 31 includes a first fixed seat 311, a first push rod 312 and a first stopper 313. The first fixed seat 311 is fixed on the test machine 1, the first push rod 312 is movably arranged on the first fixed seat 311 and is threadedly connected thereto, and the end of the first push rod 312 is installed with a first stopper 313. The first push rod 312 is rotated to push the first stopper 313 at the end to fix the sample 5 to be tested in the horizontal direction. Similarly, the second fixture 32 is rotated to push the first stopper 313 at the end to fix the sample 5 to be tested in the vertical direction.
[0045] Alternatively, the first clamp 31 and the second clamp 32 may have different structures, such as Figure 3As shown, the first fixture 31 is still composed of the above-mentioned first fixed seat 311, the first push rod 312 and the first stopper 313. The second fixture 32 includes a second fixed seat 321, a driving mechanism 322 and a second stopper 323. The second fixed seat 321 is fixed on the test machine 1. The driving mechanism 322 has a retractable output end and is vertically mounted on the second fixed seat 321. The output end of the driving mechanism 322 is mounted with a second stopper 323. The vertically downward output end of the driving mechanism 322 and the second stopper 323 provided thereon are used to fix the sample 5 to be tested in the vertical direction, so that the sample 5 to be tested is vertically pressed on the test machine 1.
[0046] Therefore, according to the above two different structures of the clamps, the first clamp 31 and the second clamp 32 can be set to the same structure, or they can be set to different structures. Specifically, they can be freely combined according to actual conditions.
[0047] In one embodiment, Figure 3-6 As shown, the connecting assembly includes a movable module 6, a first end of which is mounted on the output end 21 of the first linear module 2, and is driven by the first linear module 2 to reciprocate along a straight line relative to the switch 51, and a second end of the movable module 6 is connected to the caliper 4.
[0048] For example, when the first linear module 2 adopts a screw slider module, the screw slider module has a slider that can perform reciprocating linear motion, and the movable module 6 is fixed on the slider. The movable module is used as a connecting piece to connect the caliper 4 with the screw slider module. The movable module 6 is generally in a long plate-like structure, one end of the movable module 6 is fixedly connected to the slider, and the other end of the movable module 6 is connected to the caliper 4.
[0049] In this embodiment, if Figure 7 As shown, the caliper 4 includes a first clamping portion 41 and a second clamping portion 42, and the connecting assembly also includes a second linear module 7; the second linear module 7 has two fixed ends and an output end capable of reciprocating linear motion. The two fixed ends of the second linear module 7 are mounted on the second end of the movable module 6, the first clamping portion 41 is fixed on the fixed end of the second linear module 7; the second clamping portion 42 is mounted on the output end of the second linear module 7, and is driven by the second linear module 7 to approach or move away from the first clamping portion 41 to clamp or release the switch 51.
[0050] The first clamping part 41 is arranged at a position away from the starting point of the movement of the output end of the second linear module 7. The second linear module 7 is used to drive the second clamping part 42 of the caliper 4 to move back and forth linearly, so that the second clamping part 42 and the first clamping part 41 cooperate to clamp the switch 51, so that the caliper 4 has a suitable clamping force on the switch 51, and no deviation occurs during the cycle test, thereby improving the test accuracy.
[0051] The second linear module 7 can be specifically configured as a screw-type linear module or a synchronous belt-type linear module. The screw-type linear module adopts a ball screw module, a screw slider module or a linear guide module.
[0052] Since the second linear module 7 drives the second clamping part 42 to move back and forth linearly and cooperates with the first clamping part 41 to clamp and fix the switch 51 and is located at a position that matches the size of the switch, the second linear module 7 preferably adopts a micro structure, such as a micro screw linear module.
[0053] In one embodiment, Figure 5-6 , Figure 8-10 As shown, the switch life test equipment also includes a third linear module 8, a laser displacement sensor 9 and a controller. The third linear module 8 is arranged below the first linear module. The third linear module 8 is installed on the test machine 1. The laser displacement sensor 9 is installed on the output end of the third linear module 8 and is driven by the third linear module 8 to reciprocate along a straight line relative to the switch 51. The laser displacement sensor 9 is used to identify the contour of the switch and the contour of the caliper 4 and transmit the image to the controller. The controller processes the received image to determine the moving distance of the caliper 4.
[0054] In this embodiment, the controller adopts a common single-chip microcomputer or PLC controller. The controller is installed in a computer case or a shell of a laptop computer 10. The controller controls the third linear module 8 to work so that the laser displacement sensor 9 performs reciprocating linear motion. The laser displacement sensor 9 identifies the outline of the switch and the outline of the caliper and uploads the image to the controller. The controller determines the moving distance of the caliper based on the received image. Specifically, the controller determines the moving distance of the caliper based on the received image, including the distance between the first clamping portion 41 of the caliper and the first end of the switch 51, and the distance between the second clamping portion 42 of the caliper and the second end of the switch 51.
[0055] Furthermore, the controller is also electrically connected to the second linear module 7 and the first linear module 2. The controller controls the second linear module 7 to work according to the moving distance of the caliper so that the second clamping part 42 of the caliper 4 moves linearly close to the first clamping part 41 and the switch 51; and the controller controls the first linear module 2 to work according to the moving distance of the caliper so that the movable module 6 synchronously drives the first clamping part 41 to move toward the switch 51, so that the first clamping part 41 and the second clamping part 42 cooperate to clamp and fix the switch 51. After the two clamping parts of the caliper clamp and fix the switch 51, the controller controls the first linear module 2 to synchronously drive the movable module 6 and the caliper 4 to perform linear reciprocating motion, thereby realizing a cyclic test of the open or closed state of the switch 51.
[0056] In this embodiment, the existing image recognition technology is applied to the switch life test. The operation of the three sets of linear modules and the movement of the caliper to clamp the switch are all operated by the controller. Therefore, there is no need for operators to operate all the time, which greatly improves the test efficiency. The equipment of this application has a high degree of automation and avoids harm to personnel caused by the equipment.
[0057] In this embodiment, the first linear module 2, the second linear module 7, the third linear module 8, the laser displacement sensor 9, the drive mechanism 322 and the force sensor are all electrically connected to the controller, and the controller controls their work. The whole process has a high degree of automation, which improves the test efficiency, and automation can prevent the equipment from causing harm to personnel.
[0058] Of course, when the switch life test device of the present application is being tested, if an emergency occurs, for example, the test device can be controlled to stop urgently by an operating lever connected to the controller.
[0059] In one embodiment, the switch life test device further includes a force sensor, which is installed in the sample to be tested 5 and is located at both ends of the switch 51. The force sensor is used to detect the force value of the switch 51 during the opening or closing cycle test and transmit the force value information to the controller, which records and generates a force value peak graph. After the test is completed, the controller transmits the force value peak graph to the user terminal of the tester.
[0060] In the present application, a camera switch 51 is added to the right or left side of the laptop body, and the camera circuit is controlled by the camera switch (referred to as "switch") to achieve the purpose of turning the camera on or off. Taking the life test of the switch 51 of the laptop camera as an example, the working process of the switch life test device of the present application is exemplified, wherein the controller is installed in the shell of the laptop computer, thereby specifically realizing the control work of three sets of linear modules, laser displacement sensors, and force sensors through the laptop computer 10, such as Figure 2 As shown; specifically including:
[0061] Place the test sample (i.e., the laptop computer sample) on the test machine 1, and fix the test sample 5 on the test machine 1 with the first clamp 31 and the second clamp 32. Control the laser displacement sensor 9 to move back and forth linearly at the output end of the third linear module 8 through a computer to identify the contour of the switch 51 and the contours of the first and second clamps of the caliper 4 and transmit the image to the computer.
[0062] The computer calculates the distance between the first clamping portion 41 of the caliper 4 and the first end of the switch 51, and the distance between the second clamping portion 42 of the caliper and the second end of the switch 51 according to the received image data, and controls the first linear module 2 to work so that the movable module 6 thereon synchronously drives the first clamping portion 41 to move toward the first end of the switch 51. Figure 8 As shown; Fig. 9 In the embodiment, the first clamping portion 41 contacts the first end of the switch 51, and the second linear module 7 is controlled to work so that the second clamping portion 42 thereon moves toward the second end of the switch 51, so that the caliper 4 clamps the switch 51. Fig.10 As shown. Since the distance that the switch 51 on the same test sample moves when it is opened or closed is a fixed value, the computer controls the first linear module 2 to work according to the set value, so that the movable module 6 synchronously drives the caliper 4 to clamp the switch 51 to reciprocate back and forth in a straight line, so as to realize the switch 51 to perform an open or closed cycle test, for example, to realize the switch to cycle 5000 times in the open or closed state.
[0063] Among them, when the caliper 4 drives the switch 51 to cyclically open or close the test, the force sensor detects the force value of the switch 51 during the opening or closing cycle test and transmits the force value information to the computer. The computer records and generates a force peak graph, and sends the force peak graph and related force value data to the tester's user terminal.
[0064] It should be understood that the various forms of processes shown above can be used to reorder, add or delete steps. For example, the steps recorded in this disclosure can be executed in parallel, sequentially or in different orders, as long as the desired results of the technical solutions disclosed in this disclosure can be achieved, and this document does not limit this.
[0065] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of the present disclosure, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.
[0066] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present disclosure. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.
[0067] Furthermore, those skilled in the art may combine and associate different embodiments or examples and features of different embodiments or examples described in this specification without mutual contradiction.
[0068] The above is only a specific embodiment of the present disclosure, but the protection scope of the present disclosure is not limited thereto. Any person skilled in the art who is familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the present disclosure, which should be included in the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure should be based on the protection scope of the claims.
Claims
1. A switch life test device, comprising a test machine, characterized in that: Also includes: A first linear module, wherein the first linear module has an output end capable of reciprocating linear motion; A fixture assembly, wherein the fixture assembly is configured to exert a pressing force on the sample to be tested in the horizontal direction and the vertical direction, so that the sample to be tested is fixed on the test machine; The caliper is configured to have a clamping force on the switch of the sample to be tested. The caliper is installed on the output end of the first linear module through a connecting component and is driven by the first linear module to drive the switch to perform a cyclic test in an open or closed state.
2. A switch life test device according to claim 1, characterized in that: The clamp assembly includes a first clamp and a second clamp, wherein the first clamp is respectively arranged close to the first side and the second side of the sample to be tested so as to fix the sample to be tested in a horizontal direction; and the second clamp is arranged close to the third side of the sample to be tested so as to fix the sample to be tested in a vertical direction.
3. A switch life test device according to claim 2, characterized in that: The first fixture and / or the second fixture comprises a first fixing seat, a first push rod and a first stopper, the first fixing seat is fixed on the test machine, the first push rod is passed through the first fixing seat and threadedly connected thereto, and the first stopper is installed at the end of the first push rod.
4. A switch life test device according to claim 2, characterized in that: The first fixture and / or the second fixture includes a second fixed seat, a driving mechanism and a second stopper, the second fixed seat is fixed to the test machine, the driving mechanism has a retractable output end and is installed on the second fixed seat, and the output end of the driving mechanism is installed with the second stopper.
5. The switch life test device according to claim 1, characterized in that: The connecting assembly includes a movable module, a first end of which is mounted on the output end of the first linear module and is driven by the first linear module to reciprocate along a straight line relative to the switch, and a second end of the movable module is connected to the caliper.
6. A switch life test device according to claim 5, characterized in that: The connecting assembly also includes a second linear module, and the caliper includes a first clamping part and a second clamping part; the two fixed ends of the second linear module are installed on the second end of the movable module, and the first clamping part is fixed to the fixed end of the second linear module and / or the second end of the movable module; the second clamping part is installed at the output end of the second linear module, and is driven by the second linear module to approach or move away from the first clamping part to clamp or release the switch.
7. A switch life test device according to any one of claims 1 to 6, characterized in that: It also includes a third linear module, a laser displacement sensor and a controller. The laser displacement sensor is installed on the output end of the third linear module and is driven by the third linear module to reciprocate along a straight line relative to the switch. The laser displacement sensor is used to identify the outline of the switch and the outline of the caliper and transmit the image to the controller. The controller processes the received image to determine the moving distance of the caliper.
8. A switch life test device according to claim 7, characterized in that: The controller is also electrically connected to the second linear module. The controller controls the second linear module to work according to the moving distance of the caliper so that the second clamping part of the caliper moves linearly close to the switch, so that the second clamping part cooperates with the first clamping part to clamp the switch.
9. A switch life test device according to claim 8, characterized in that: The controller is also electrically connected to the first linear module. The controller controls the first linear module to work according to the moving distance of the caliper so that the movable module synchronously drives the first clamping part to move toward the switch direction, so that the first clamping part cooperates with the second clamping part to clamp the switch.
10. A switch life test device according to any one of claims 1 to 6, characterized in that: It also includes a force sensor, which is installed in the sample to be tested and located at both ends of the switch. The force sensor is used to detect the force value of the switch during the open or closed state cycle test and transmit the force value information to the controller, which records and generates a force value peak graph.