A switch life tester

Abstract

The present invention relates to the technical field of detection devices, and in particular to a switch life tester, comprising a base, a controller, a slide plate slidably connected to the base, a driving member for driving the slide plate to move, a force detection component arranged on the slide plate, a displacement sensor for detecting the moving distance of the slide plate, and a clamping component, a power supply component, and a load component all arranged on the base, wherein the force detection component of the driving member, the displacement sensor, and the power supply component are respectively connected to the controller, the clamping component is used to clamp the switch, the output end of the power supply component is connected to the input end of the switch on the clamping component, the input end of the load component is connected to the output end of the switch on the clamping component, and the force detection component extends to the moving direction of the slide plate with a test end, and the test end is used to contact the switch on the clamping component. The present invention enables the switch life tester to press the switch with high precision and accurately display the problems existing in the switch through test data.

Description

Technical Field

[0001] The invention relates to the technical field of detection devices, in particular to a switch life tester. Background Art

[0002] In the existing switch life test, most of the tests are done manually, that is, the switch is pressed manually and then checked with the naked eye to see if there are any problems. This makes it difficult to find some minor problems with the switch, and it is impossible to press the switch with high precision at a constant speed, constant thrust, etc., resulting in inaccurate test results. Summary of the invention

[0003] The present invention aims at solving the problems in the prior art and provides a switch life tester, which can effectively ensure the accuracy of the switch test result.

[0004] The present invention adopts the following technical scheme: a switch life testing machine, including a base, a controller, a slide plate slidably connected to the base, a driving member for driving the slide plate to move, a force detection component arranged on the slide plate, a displacement sensor for detecting the moving distance of the slide plate, and a clamping component, a power supply component and a load component all arranged on the base, the driving member, the force detection component, the displacement sensor and the power supply component are respectively connected to the controller, the clamping component is used to clamp the switch, the output end of the power supply component is connected to the input end of the switch on the clamping component, the input end of the load component is connected to the output end of the switch on the clamping component, the force detection component has a test end extending in the moving direction of the slide plate, and the test end is used to contact the switch on the clamping component.

[0005] Preferably, the clamping assembly includes a plurality of clamps, a part of which are located at one end of the skateboard, and the remaining clamps are located at the other end of the skateboard. The force detection assembly includes a plurality of force detectors, and a force detector is provided with a test end. The test end on a force detector is used to contact a switch on a clamp.

[0006] Preferably, the power supply component includes an AC power supply and a DC power supply, and the load component includes an AC load and a DC load. The output end of the AC power supply and the output end of the DC power supply are respectively connected to the input end of the switch on the clamping component, and the input end of the AC load and the input end of the DC load are respectively connected to the output end of the switch on the clamping component. The control end of the AC power supply, the control end of the DC power supply, the control end of the DC load, and the control end of the AC load are respectively connected to the controller.

[0007] Preferably, the switch life testing machine further comprises a camera, an input end of the camera being aimed at the clamping assembly.

[0008] Preferably, an image analysis module is provided inside the controller, and the image analysis module analyzes the imaging signal of the camera. The controller controls the on and off of the power supply component according to the analysis result of the image analysis module.

[0009] Preferably, the switch life tester further comprises a server and a communication module connected to the controller, and the controller transmits the camera signal of the camera to the server via the communication module.

[0010] Preferably, the switch life tester further comprises a resistor, wherein the resistor assembly is used to detect the resistance of the switch on the clamping assembly; the switch life tester further comprises a temperature rise meter, wherein the temperature rise meter is used to detect the temperature rise of the switch on the clamping assembly.

[0011] Preferably, the switch life testing machine also includes an analysis system, which includes a storage module, a curve generating module, an analysis module, a standard database and a comparison module. The storage module is used to store the force value detected by the force value detection component and the displacement value detected by the displacement sensor. The curve generating module is used to generate a characteristic curve related to the force value and the displacement value. The analysis module is used to extract the mutation point of the characteristic curve generated by the curve generating module. The comparison module is used to compare the standard data in the standard database with the force value and the displacement value corresponding to the mutation point and output the comparison result.

[0012] Preferably, the analysis system also includes a first selection module, a second selection module, a first averaging module and a second averaging module; the first selection module is used to select multiple continuous force values ​​in the storage module; the second selection module is used to select multiple continuous displacement values ​​in the storage module; the first averaging module is used to calculate the force value average of the multiple force values ​​selected by the first selection module before the curve generation module generates the characteristic curve, and replace the force values ​​that deviate greatly from the force value average with the force value average; the second averaging module is used to calculate the displacement value average of the multiple displacement values ​​selected by the second selection module before the curve generation module generates the characteristic curve, and replace the displacement values ​​that deviate greatly from the displacement value average with the displacement value average.

[0013] Preferably, the analysis system also includes a search module and an origin establishment module; the search module is used to search for multiple force values ​​that are continuous and all greater than zero; the origin establishment module is used to use the first force value greater than zero among the multiple force values ​​found by the search module as the origin value.

[0014] The beneficial effects of the present invention are as follows: by utilizing a controller to control a driving member to drive a slide plate to move, so that the test end of a force detection assembly on the slide plate contacts a switch on a clamping assembly, and a displacement sensor is used to detect the displacement of the slide plate, thereby enabling a switch life testing machine to press the switch with high precision and accurately display problems with the switch through test data. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional structural diagram of the present invention.

[0016] Figure 2 This is a three-dimensional structural diagram of the present invention after partially hiding the base.

[0017] Figure 3 The schematic diagram of the camera, controller, communication module and server of the present invention is shown in FIG.

[0018] Figure 4 It is a principle block diagram of the analysis system of the present invention.

[0019] The accompanying drawings are marked as follows: 1. base; 11. driving member; 12. slide plate; 13. camera; 14. resistance meter; 15. temperature rise meter; 2. controller; 21. image analysis module; 22. communication module; 23. server; 3. analysis system; 31. storage module; 32. curve generation module; 33. analysis module; 34. standard database; 35. comparison module; 36. first selection module; 37. second selection module; 38. first averaging module; 39. second averaging module; 4. search module; 41. origin establishment module; 42. shielding module; 43. load voltage detection module; 5. force detection component; 51. test end; 52. force detector; 6. displacement sensor; 7. clamping component; 71. fixture; 8. power supply component; 81. AC power supply; 82. DC power supply; 9. load component; 91. AC load; 92. DC load. DETAILED DESCRIPTION

[0020] In order to facilitate the understanding of those skilled in the art, the present invention is further described below in conjunction with the embodiments and drawings, and the contents mentioned in the embodiments are not intended to limit the present invention. The present invention is described in detail below in conjunction with the drawings.

[0021] like Figure 1 and Figure 2As shown, a switch life tester comprises a base 1, a controller 2, a slide plate 12 slidably connected to the base 1, a driving member 11 for driving the slide plate 12 to move, a force detection assembly 5 arranged on the slide plate 12, a displacement sensor 6 for detecting the moving distance of the slide plate 12, and a clamping assembly 7, a power supply assembly 8 and a load assembly 9 all arranged on the base 1, wherein the driving member 11, the force detection assembly 5, the displacement sensor 6 and the power supply assembly 8 are respectively connected to the controller 2, the clamping assembly 7 is used to clamp the switch, the output end of the power supply assembly 8 is connected to the input end of the switch on the clamping assembly 7, the input end of the load assembly 9 is connected to the output end of the switch on the clamping assembly 7, the force detection assembly 5 extends to the moving direction of the slide plate 12 with a test end 51, and the test end 51 is used to resist the switch on the clamping assembly 7. The driving member 11 is composed of a servo motor, a servo motor driver, a ball screw, a linear guide rail and a limit switch. The slide plate is mounted on the nut of the ball screw, and two linear guides fix the two sides of the slide plate to prevent swinging. The slide plate, ball screw and linear guides work together to form a precision sliding platform. The limit switches are installed at the left extreme position, the center point and the right extreme position of the slide plate as the position input signal of controller 2.

[0022] When testing, the controller 2 drives the motor to drive the slide plate 12 to reset back to the center point of the position, and then moves to the specified end to press the switch at a specified speed and direction. After moving to the specified distance, it moves back to the center point of the position in the opposite direction. The specific control is as follows: the controller 2 sends an instruction to control the servo driver to drive the motor to rotate at a specified speed and direction, and the motor drives the ball screw to rotate. The rotation of the screw drives the slide plate 12 to move at a specified speed and direction, and the force detection component 5 on the slide plate 12 approaches the switch fixed by the clamping component 7 at a specified speed, and presses the switch on the clamping component 7 with high precision. After reaching the specified stroke, the controller 2 drives the motor to drive the slide plate to move in the opposite direction at a specified speed until it returns to the center point of the position. In the process of the slide plate 12 moving toward the switch and returning to the center point of the position, the force detection component 5 continuously detects the force of the switch on its test end 51 and forms continuous data, and the displacement sensor 6 continuously detects the displacement of the slide plate 12 and forms continuous data. The user can analyze the situation of the switch through the continuous data detected by the force detection component 5 and the displacement sensor 6, so as to accurately know whether the switch has problems and problem points.

[0023] In some embodiments, Figure 1As shown, the clamping assembly 7 includes a plurality of clamps 71, a part of the clamps 71 is located at one end of the slide 12, and the remaining clamps 71 are located at the other end of the slide 12. The force detection assembly 5 includes a plurality of force detectors 52, and one force detector 52 is provided with a test end 51. The test end 51 on a force detector 52 is used to resist a switch on a clamp 71, so that the switch life tester can test multiple switches at the same time, thereby greatly improving the efficiency of switch detection. When testing, the driving member 11 drives the slide 12 to move toward one end of the slide 12, so that the force detector 52 located at one end of the slide 12 approaches and presses the switch located at one end of the slide 12. After the force detector 52 presses the switch and moves a distance, the driving member 11 moves in the opposite direction and returns to the center point of the position. In the process of the above-mentioned movement and resetting of the slide 12, the force detector 52 continuously detects the force of the switch on its test end 51 and forms continuous data, and the displacement sensor 6 continuously detects the displacement of the slide 12 and forms continuous data. After the slide plate 12 is reset, the driving member 11 drives the slide plate 12 to move toward the other end of the slide plate 12, so that the force detector 52 at the other end of the slide plate 12 approaches and presses the switch at the other end of the slide plate 12. After the force detector 52 presses the switch and moves a certain distance, the driving member 11 moves in the opposite direction and returns to the center point of the position. During the movement and reset of the above-mentioned slide plate 12, the force detector 52 continuously detects the force of the switch on its test end 51 and forms continuous data, while the displacement sensor 6 continuously detects the displacement of the slide plate 12 and forms continuous data. Specifically, the clamp 71 has strong adaptability, can adapt to switches of different sizes, and is convenient for users to quickly install and remove the switch.

[0024] In some embodiments, the switch life tester can also test the characteristics of the switch under different working environments and different loads. Figure 1 and Figure 3 As shown, the power supply component 8 includes an AC power supply 81 and a DC power supply 82, and the load component 9 includes an AC load 91 and a DC load 92. The output end of the AC power supply 81 and the output end of the DC power supply 82 are respectively connected to the input end of the switch on the clamping component 7, and the input end of the AC load 91 and the input end of the DC load 92 are respectively connected to the output end of the switch on the clamping component 7. The control end of the AC power supply 81, the control end of the DC power supply 82, the control end of the DC load 92 and the control end of the AC load 91 are respectively connected to the controller 2.

[0025] like Figure 1 As shown, the switch life tester further comprises a camera 13, the input end of the camera 13 is aimed at the clamping assembly 7, and the camera 13 can be used to record the test process so that the user can review the test results.

[0026] like Figure 3 As shown, the controller 2 is provided with an image analysis module 21 inside, and the image analysis module 21 analyzes the camera signal of the camera 13, and the controller 2 controls the on and off of the power supply component 8 according to the analysis result of the image analysis module 21. The image analysis module 21 analyzes the image photographed by the camera 13, and when the analysis finds that the test process is abnormal, such as smoke or even fire caused by arcing, the controller 2 controls the power supply component 8 to be disconnected to prevent accidents.

[0027] like Figure 3 As shown, the switch life tester also includes a server 23 and a communication module 22 connected to the controller 2, and the controller transmits the video signal of the camera 13 to the server 23 through the communication module 22, so that the user can remotely save and view the test situation.

[0028] When checking the function of existing tests, it is necessary to remove the switch from the test platform and then use various instruments and meters to measure each item. There are many types of instruments and meters, and different testers have different habits in operating the machines. It is inevitable that errors will occur in the read data. The test has great limitations and is highly dependent on the tester's skills. Therefore, in some embodiments, Figure 1 As shown, the switch life tester also includes a resistor 14, and the resistor 14 component is used to detect the resistance of the switch on the clamping component 7. The clamping component 7 is provided with a resistance port for connecting the resistor 14 to the switch on the clamping component 7; the switch life tester also includes a temperature rise meter 15, and the temperature rise meter 15 is used to detect the temperature rise of the switch on the clamping component 7. The clamping component 7 is provided with a temperature rise port for connecting the temperature rise meter 15 to the switch on the clamping component 7, so that after the user puts the switch into the clamping component 7, the resistor 14 and the temperature rise meter 15 can automatically detect the resistance and temperature rise of the switch during use, thereby avoiding test errors caused by the user taking and placing the switch multiple times during the test.

[0029] The design of the switch has certain standards and indicators. By comparing the switch test results with the standards and indicators, it can be quickly determined whether the switch meets the design requirements. In order to reduce the subjective uncertainty of manual judgment and help R&D personnel quickly find design deficiencies and improve them, thereby shortening the R&D cycle. In some embodiments, Figure 4As shown, the switch life tester also includes an analysis system 3, which includes a storage module 31, a curve generation module 32, an analysis module 33, a standard database 34 and a comparison module 35. The storage module 31 is used to store the force value detected by the force detection component 5 and the displacement value detected by the displacement sensor 6. Since the slide 12 drives the force detection component 5 to move so that the test end 51 of the force detection component 5 contacts the switch and resets to a continuous process after contacting the switch, and the force detection component 5 and the displacement sensor 6 continue to detect during this process, the force detection component 5 and the displacement sensor 6 detect multiple continuous values. The curve generation module 32 is used to generate a characteristic curve related to the force value and the displacement value, the analysis module 33 is used to extract the mutation point of the characteristic curve related to the force value and the displacement value generated by the curve generation module 32, and the comparison module 35 is used to compare the standard data in the standard database 34 with the force value and the displacement value corresponding to the mutation point and output the comparison result. The standard data in the standard database 34 are the standards and indicators for the design of the switch. The data at the mutation point represents the key data of the switch, such as the maximum displacement of the switch pressing end and its corresponding force value point. Therefore, by comparing the mutation point data with the standard data in the standard database 34, it can be determined whether the design of the switch meets the requirements.

[0030] The analysis system 3 further includes a shielding module 42, which is used to output a shielding signal when the comparison result obtained by the comparison module 35 has a large deviation, that is, when the force value and displacement value corresponding to the mutation point have a large deviation from the standard data in the standard database 34. When the switch is defective due to manufacturing errors rather than design failure, the switch function will have a major abnormality, that is, the test data will deviate far from the standard data. In some embodiments, the switch life tester tests multiple switches at the same time, and outputs the data of different switches as a reference when outputting the results. In order to avoid the switch data with major abnormalities from disturbing the user, the shielding module 42 is used to shield the corresponding switch when a major abnormality is found, thereby reducing the disruptiveness of the switch with major abnormality.

[0031] The analysis system 3 also includes a load voltage detection module 43 for detecting the voltage of the load component 9, the curve generation module 32 is used to generate a characteristic curve related to the voltage of the load component 9 and the displacement value, the analysis module 33 is used to extract the mutation point of the characteristic curve related to the voltage of the load component 9 and the displacement value generated by the curve generation module 32, and the comparison module 35 is used to compare the standard data in the standard database 34 with the voltage and displacement value of the load component 9 corresponding to the mutation point and output the comparison result. By analyzing the mutation point, the displacement value when the switch is turned on can be obtained, thereby helping R&D personnel to further determine whether the switch meets the design requirements.

[0032] When the force detection component 5 and the displacement sensor 6 are used for detection and the line is used for data transmission, disadvantages such as delay may occur. Therefore, in some embodiments, the data is digitally filtered. Figure 4 As shown, the analysis system 3 further includes a first selection module 36, a second selection module 37, a first averaging module 38 and a second averaging module 39; the first selection module 36 is used to select a plurality of continuous force values ​​in the storage module 31; the second selection module 37 is used to select a plurality of continuous displacement values ​​in the storage module 31; the first averaging module 38 is used to calculate the force value average value of the plurality of force values ​​selected by the first selection module 36 before the curve generation module 32 generates the characteristic curve, and replace the force value that deviates greatly from the force value average value with the force value average value; the second averaging module 39 is used to calculate the displacement average value of the plurality of displacement values ​​selected by the second selection module 37 before the curve generation module 32 generates the characteristic curve, and replace the displacement value that deviates greatly from the displacement average value with the displacement average value. The curve generation module 32 uses the replaced displacement values ​​and force values ​​to generate the characteristic curve, thereby achieving the effect of eliminating spike interference.

[0033] According to the characteristic that the force value of the force value detector 52 is zero in its natural state, the data in the force value array is searched. If there are multiple consecutive values ​​greater than zero, the reading of the displacement sensor 6 corresponding to the first force value greater than zero can be used as the reference point (the origin of the switch stroke). The data of the reference point is the data when the force value detector 52 initially contacts the switch. Figure 4 As shown, the analysis system 3 also includes a search module 4 and an origin establishment module 41; the search module 4 is used to search for multiple force values ​​that are continuous and all greater than zero; the origin establishment module 41 is used to use the first force value greater than zero among the multiple force values ​​found by the search module 4 as the origin value. The data after the force value detector 52 touches the switch is valid data, that is, the data after the origin value is valid data. Searching for the origin value through the search module 4 can help the user and the analysis system 3 distinguish valid data.

[0034] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Although the present invention is disclosed as a preferred embodiment as above, it is not used to limit the present invention. Any technician familiar with the profession can make some changes or modifications to equivalent embodiments of equivalent changes by using the technical contents disclosed above without departing from the scope of the technical solution of the present invention. However, any simple modification, equivalent changes and modifications made to the above embodiments according to the technology of the present invention are within the scope of the technical solution of the present invention without departing from the content of the technical solution of the present invention.

Claims

1. A switch life tester, characterized in that: It includes a machine base, a controller, a slide plate slidably connected to the machine base, a driving member for driving the slide plate to move, a force detection component arranged on the slide plate, a displacement sensor for detecting the moving distance of the slide plate, and a clamping component, a power supply component and a load component all arranged on the machine base, wherein the driving member, the force detection component, the displacement sensor and the power supply component are respectively connected to the controller, the clamping component is used to clamp a switch, the output end of the power supply component is connected to the input end of the switch on the clamping component, the input end of the load component is connected to the output end of the switch on the clamping component, the force detection component has a test end extending in the moving direction of the slide plate, and the test end is used to contact the switch on the clamping component; The clamping assembly includes multiple clamps, some of which are located at one end of the skateboard, and the remaining clamps are located at the other end of the skateboard. The force detection assembly includes multiple force detectors, and each force detector is provided with a test end. The test end on a force detector is used to contact a switch on a clamp.

2. A switch life tester according to claim 1, characterized in that: The power supply component includes an AC power supply and a DC power supply, and the load component includes an AC load and a DC load. The output end of the AC power supply and the output end of the DC power supply are respectively connected to the input end of the switch on the clamping component, and the input end of the AC load and the input end of the DC load are respectively connected to the output end of the switch on the clamping component. The control end of the AC power supply, the control end of the DC power supply, the control end of the DC load, and the control end of the AC load are respectively connected to the controller.

3. A switch life tester according to claim 1, characterized in that: The switch life tester further comprises a camera, an input end of which is aimed at the clamping assembly.

4. A switch life tester according to claim 3, characterized in that: An image analysis module is provided inside the controller, and the image analysis module analyzes the image signal of the camera. The controller controls the on and off of the power supply component according to the analysis result of the image analysis module.

5. A switch life tester according to claim 3, characterized in that: The switch life tester also includes a server and a communication module connected to the controller, and the controller transmits the camera signal of the camera to the server through the communication module.

6. A switch life tester according to claim 1, characterized in that: The switch life tester also includes a resistor, and the resistor assembly is used to detect the resistance of the switch on the clamping assembly; The switch life tester also includes a temperature rise meter, which is used to detect the temperature rise of the switch on the clamping assembly.

7. A switch life tester according to claim 1, characterized in that: The switch life tester also includes an analysis system, which includes a storage module, a curve generating module, an analysis module, a standard database and a comparison module. The storage module is used to store the force value detected by the force value detection component and the displacement value detected by the displacement sensor. The curve generating module is used to generate a characteristic curve related to the force value and the displacement value. The analysis module is used to extract the mutation point of the characteristic curve generated by the curve generating module. The comparison module is used to compare the standard data in the standard database with the force value and the displacement value corresponding to the mutation point and output the comparison result.

8. A switch life tester according to claim 7, characterized in that: The analysis system further includes a first selection module, a second selection module, a first averaging module and a second averaging module; The first selection module is used to select a plurality of continuous force values ​​in the storage module; The second selection module is used to select a plurality of continuous displacement values ​​in the storage module; The first averaging module is used to calculate the force value average of the multiple force values ​​selected by the first selection module before the curve generation module generates the characteristic curve, and replace the force value that deviates greatly from the force value average among the multiple force values ​​with the force value average; The second averaging module is used to calculate the displacement average value of multiple displacement values ​​selected by the second selection module before the curve generation module generates the characteristic curve, and replace the displacement value of the multiple displacement values ​​that deviates greatly from the displacement average value with the displacement average value.

9. A switch life tester according to claim 8, characterized in that: The analysis system also includes a search module and an origin establishment module; The search module is used to search for a plurality of force values ​​that are continuous and all greater than zero; The origin establishing module is used to use the first force value greater than zero among the multiple force values ​​found by the finding module as the origin value.

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