CN115718256A

CN115718256A - Automatic change switch endurance test platform

Info

Publication number: CN115718256A
Application number: CN202211455165.9A
Authority: CN
Inventors: 刘方平; 伍芳芳; 范然然; 陈勇; 苏磊; 罗洪波
Original assignee: Liuzhou Vocational and Technical College
Current assignee: Liuzhou Vocational and Technical College
Priority date: 2022-11-21
Filing date: 2022-11-21
Publication date: 2023-02-28

Abstract

The invention relates to the technical field of endurance tests of switches, and discloses an automatic switch endurance test bed which comprises a test frame and a test desktop arranged on the test frame, wherein a touch screen, a clamping mechanism and a testing mechanism are arranged on the test desktop, the clamping mechanism is used for mounting a switch to be tested, the testing mechanism is used for testing the endurance performance of the switch and detecting the pressing force required by the current closing of the switch after preset pressing times at intervals, so that the endurance performance of the switch, namely the maximum pressing times, can be obtained, the endurance performance change of the switch, namely the pressing force required by the current closing of the switch can be obtained in different stages of testing the pressing times, and in each pressing, the effective action of the switch gives a signal to a controller, and information such as the effective times, failure times and the like is fed back to the touch screen, and the touch screen is used for changing the operation parameters of the testing mechanism.

Description

Automatic change switch endurance test platform

Technical Field

The invention relates to the technical field of switch tests, in particular to the technical field of switch endurance tests, and particularly relates to an automatic switch endurance test bed.

Background

The switch is an electronic element which can open a circuit and interrupt current or make the current flow to other circuits, the applicant finds a Chinese invention patent with an authorization notice number of CN217059317U through retrieval, and discloses a glass lifter switch durability test bed, which utilizes a lifting plate, a pressing rod, a fixing rod and a lifting block to achieve the purpose of high automation degree and solve the problem that the existing switch durability test bed does not have the function of high automation degree and cannot meet the use requirements of people, the applicant finds a Chinese invention patent with an authorization notice number of CN207352126U through retrieval, and discloses an automobile combination switch durability test bed based on computer control, wherein a plurality of test devices are arranged on an operation bed, so that a plurality of tests can be simultaneously carried out on a plurality of automobile combination switches, test steps, test times and time are set through an industrial personal computer, test operation is completed through motor drive, and automatic operation is realized, so that test efficiency is improved, test cost is reduced, and the test device has the advantages of simple operation and convenient use; according to the two comparison documents, the durability test of the switch is very necessary, besides, the two comparison documents only realize the automatic test of the durability of the switch by simply arranging a reciprocating press switch, and the following points are not considered: 1. the switch models are diversified, and how to enable the test bed to test the switches with different models; 2. in the switch endurance test, the endurance performance of the switch changes along with the increasing of the pressing times, the comparison file only tests the maximum pressing times of the switch, and the change of the endurance performance of the switch cannot be known in different pressing time stages.

Disclosure of Invention

In order to solve the problems mentioned in the background, the invention provides an automatic switch endurance test bed.

In order to achieve the technical purpose, the technical scheme adopted by the invention is as follows.

The utility model provides an automatic change switch endurance test platform, includes the test stand and sets up the test desktop on the test stand, installs touch-sensitive screen, clamping machine structure and test mechanism on the test desktop, and clamping machine constructs and is used for installing the switch of treating the experiment, and test mechanism is used for testing the durability of switch and after the interval preset number of times of pressing, detects the required pressing force size of the present closure of switch, and the touch-sensitive screen is used for changing the operating parameter of test mechanism.

Further, clamping machine constructs including setting up the mount on experimental desktop, and slidable mounting has flexible mounting bracket on the mount, and the last detachable flexible mounting board of installing of flexible mounting bracket, flexible mounting board are provided with a plurality of not unidimensional models, still install on the mount and are used for ordering about the sharp module a that flexible mounting bracket took place to remove.

Further, flexible mounting frame is provided with two experimental positions: the first test position and the second test position are provided with proximity switches on the fixing frame, the proximity switches are arranged in two groups along the moving direction of the flexible mounting frame, and the position switching of the flexible mounting frame is realized by the cooperation of the two groups of proximity switches and the linear module a.

Furthermore, the linear module a comprises a screw rod a and a guide rail a which are arranged on the fixed frame and are parallel to each other, the flexible mounting frame is in sliding connection with the guide rail a and is in threaded connection with the screw rod a, and the input end of the screw rod a is in power connection with a motor a.

Furthermore, the fixed frame is also provided with two groups of travel switches which are respectively positioned at two ends of the screw rod a.

Furthermore, the testing mechanism is opposite to the flexible mounting frame and comprises testing members, and multiple groups of testing members are arranged in the array along the moving direction of the flexible mounting frame.

Further, the test component is including setting up the fixing base on experimental desktop, and slidable mounting has the mount pad on the fixing base, still is provided with the sharp module b that is used for ordering about the mount pad and takes place to remove on the fixing base, and the mount pad has the test rod towards one side extension of clamping mechanism, and the free end of test rod is provided with the pressure test foil gage.

Furthermore, the fixing base still is provided with the cylinder towards one side of clamping mechanism, and when flexible mounting bracket was in test position one time, the output of cylinder was just to the switch, and when flexible mounting bracket was in test position two, the test rod was just to the switch.

Further, the linear module b comprises a screw rod b and a guide rail b which are arranged on the fixed seat and parallel to each other, the screw rod b is perpendicular to the screw rod a, the mounting seat is in sliding connection with the guide rail b and is in threaded connection with the screw rod b, and the input end of the screw rod b is in power connection with a motor b.

Further, the output end of the air cylinder is provided with a rubber cap, and the air cylinder is provided with a one-way throttle valve.

Compared with the prior art, the invention has the beneficial effects that:

1. the testing mechanism is used for testing the durability of the switch, detecting the pressing force required by the current closing of the switch after preset pressing times at intervals, obtaining the durability of the switch, namely the maximum pressing times, and obtaining the durability change of the switch in different pressing times stages, namely the pressing force required by the current closing of the switch, and when the switch is pressed every time, the effective action of the switch gives a signal to the controller, and information such as the effective times, the failure times and the like is fed back on the touch screen;

2. a plurality of switches can be clamped on the flexible mounting rack, a plurality of groups of data sets under the same condition are obtained simultaneously or the operation parameters of the test member are adjusted, and comparison tests under different test parameters are carried out;

3. the arrangement of the rubber cap simulates the fingers of a person and restores the scene when the switch is used as far as possible;

4. the test device is in a modular design, and a new clamp or an actuating mechanism can be replaced at any time according to a test object and test requirements;

5. the method and the device can set parameters such as the speed, the frequency, the operation force detection period, the operation travel detection period, the early warning value and the failure value of the endurance test according to requirements, and can monitor information such as the test progress, time, times and failure rate in real time.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic structural view of the clamping mechanism;

FIG. 3 is an exploded view of the flexible mounting bracket and flexible mounting plate;

figure 4 is a schematic diagram of the structure of the test member.

The reference numbers in the drawings are:

100. a test frame; 101. a test desktop; 200. a touch screen;

300. a clamping mechanism; 301. a fixed mount; 302. a screw rod a; 303. a guide rail a; 304. a motor a; 305. a flexible mounting frame; 306. a travel switch a; 307. a travel switch b; 308. a proximity switch a; 309. a proximity switch b; 310. a flexible mounting plate; 311. mounting holes;

400. a testing mechanism; 401. a fixed seat; 402. a screw rod b; 403. a guide rail b; 404. a motor b; 405. a mounting seat; 406. a cylinder; 407. a rubber cap; 408. a detection lever; 409. a pressure test strain gauge; 410. a one-way throttle valve.

Detailed Description

To further illustrate the technical means and effects of the present invention adopted to achieve the predetermined objects, the following detailed description of the embodiments, structures, features and effects according to the present invention will be made with reference to the accompanying drawings and preferred embodiments.

As shown in fig. 1 to 4, an automatic switch endurance test stand includes a test rack 100 and a test desktop 101 disposed on the test rack 100, where the test desktop 101 is mounted with a touch screen 200, a clamping mechanism 300 and a testing mechanism 400, where the clamping mechanism 300 is used to mount a switch to be tested, the testing mechanism 400 is used to test the endurance performance of the switch and detect the current pressing force required for closing the switch after preset pressing times at intervals, so as to obtain the endurance performance of the switch, i.e., the maximum pressing times, and also obtain the endurance performance change of the switch in stages of testing different pressing times, i.e., the current pressing force required for closing the switch, and the touch screen 200 is used to change the operation parameters of the testing mechanism 400.

As shown in fig. 2, the clamping mechanism 300 includes a fixing frame 301 disposed on the testing table 101, a flexible mounting frame 305 is slidably mounted on the fixing frame 301, a flexible mounting plate 310 is detachably mounted on the flexible mounting frame 305, the flexible mounting plate 310 is provided with a plurality of models with different sizes, and the installation of button switches with different shapes and sizes can be realized, specifically, as shown in fig. 3, a mounting hole 311 is disposed on the flexible mounting frame 305, the flexible mounting plate 310 and the flexible mounting frame 305 are mounted and connected through a T-shaped bolt, firstly, a switch to be tested is mounted on the flexible mounting plate 310, then, the T-shaped bolt is plugged into a threaded hole disposed on the flexible mounting plate 310, then, a free end of the T-shaped bolt passes through the mounting hole 311, and a nut is screwed on the other side of the mounting hole 311, if the mounting position of the flexible mounting plate 310 is wrong, the nut can be loosened and the position of the flexible mounting plate 310 can be moved and adjusted, in this application can simultaneously test a plurality of switches, and the sizes and the shapes of the plurality of switches can be the same or different.

The fixing frame 301 is further provided with a linear module a for driving the flexible mounting frame 305 to move, specifically, as shown in fig. 2, the linear module a includes a screw rod a302 and a guide rail a303 which are installed on the fixing frame 301 and are parallel to each other, the flexible mounting frame 305 and the guide rail a303 are slidably connected and are simultaneously in threaded connection with the screw rod a302, an input end of the screw rod a302 is further in power connection with a motor a304, the screw rod a302 is driven to rotate through the operation of the motor a304, and then the flexible mounting frame 305 moves along the guiding direction of the guide rail a 303.

Further, the fixed frame 301 is further provided with two sets of travel switches, which are respectively located at two ends of the lead screw a302, and the two sets of travel switches are respectively a travel switch a306 and a travel switch b307, which are used to prevent the flexible mounting frame 305 from moving excessively.

Further, still be provided with proximity switch on the mount 301, proximity switch is provided with two sets along flexible mounting bracket 305's moving direction: proximity switch a308 and proximity switch b309, the position switch that flexible mounting bracket 305 was realized in the cooperation of two sets of proximity switches, and is concrete, and proximity switch is also called proximity sensor, is that prior art sensor can realize, and flexible mounting bracket 305 is provided with two experimental positions: test position one and test position two, proximity switch cooperation straight line module a can make flexible mounting bracket 305 switch between two experimental positions, and is specific, when flexible mounting bracket 305 removed to test position two, proximity switch b309 signals makes straight line module a stop, when flexible mounting bracket 305 removed to test position one, proximity switch a308 signals and makes straight line module a stop.

As shown in fig. 4, the testing mechanism 400 faces the flexible mounting frame 305, and the testing mechanism 400 includes testing members arranged in a plurality of sets in the moving direction array of the flexible mounting frame 305.

The testing component comprises a fixed seat 401 arranged on the test table top 101, a mounting seat 405 is slidably arranged on the fixed seat 401, a linear module b used for driving the mounting seat 405 to move is further arranged on the fixed seat 401, specifically, the linear module b comprises a screw rod b402 and a guide rail b403 which are arranged on the fixed seat 401 and are parallel to each other, the screw rod b402 is perpendicular to the screw rod a302, the mounting seat 405 is slidably connected with the guide rail b403 and is simultaneously in threaded connection with the screw rod b402, the input end of the screw rod b402 is in power connection with a motor b404, the screw rod b402 is driven to rotate through the motor b404, and then the mounting seat 405 moves along the guiding direction of the guide rail b 403.

The side of the mounting seat 405 facing the clamping mechanism 300 is extended with a detection rod 408, and the free end of the detection rod 408 is provided with a pressure test strain gauge 409.

The fixing seat 401 is further provided with an air cylinder 406 on one side facing the clamping mechanism 300, preferably, an output end of the air cylinder 406 is provided with a rubber cap 407, the air cylinder 406 is provided with a one-way throttle valve 410, and an operating parameter of the air cylinder 406, such as a pressing speed when the rubber cap 407 is pulled to press a switch, can be changed through the one-way throttle valve 410, and is not described in detail for the implementation in the prior art.

When the flexible mounting frame 305 is in the first test position, the output end of the air cylinder 406 is opposite to the switch, and when the flexible mounting frame 305 is in the second test position, the detection rod 408 is opposite to the switch.

The working principle of the invention is as follows:

firstly, a switch to be tested is installed on the flexible installation rack 305, and at the moment, the flexible installation rack 305 is at a first test position;

next, setting test parameters, such as a pressing frequency of 1HZ, a pressing speed of 0.2M/S, a number of times of checking 10 ten thousand, an operation force test period of 1000 times, an operation stroke test period of 1000 times, and the like, on the touch screen 200;

then, starting the test, the air cylinder 406 is pressed periodically according to the frequency of 1HZ and the speed of 0.2m/s, and when the air cylinder is pressed each time, the effective action of the switch gives a signal to the controller, and information such as effective times, failure times and the like is fed back on the touch screen;

when the number of times reaches 1000, the air cylinder 406 stops, the linear module a operates to drive the flexible mounting rack 305 to be switched to the second test position, then the linear module b operates to drive the detection rod 408 to move, the detection rod 408 moves to press the switch, when the switch is closed, the controller is signaled by the effective action of the switch, the linear module b stops operating, the pressing force required by the current switch closing and the moving stroke of the detection rod 408 are obtained through the pressure test strain gauge 409, and data are displayed on the touch screen 200;

then, the linear module b operates to drive the detection rod 408 to reset, and the linear module a operates to drive the flexible mounting rack 305 to switch to a first test position;

the above steps are repeated until the total pressing times reach 10 ten thousand, the test is finished, and the controller records all data of the test and displays the data through the touch screen 200.

In addition, in the above process, a plurality of switches may be clamped on the flexible mounting frame 305, and a plurality of data sets under the same conditions may be obtained or the operation parameters of the testing member may be adjusted to perform the comparison tests under different testing parameters.

Although the present invention has been described with reference to the preferred embodiments, it will be understood by those skilled in the art that various changes may be made and equivalents may be substituted for elements thereof without departing from the scope of the present invention.

Claims

1. The utility model provides an automatic change switch endurance test platform, includes test stand (100) and sets up test desktop (101) on test stand (100), its characterized in that: the test table top (101) is provided with a touch screen (200), a clamping mechanism (300) and a testing mechanism (400), the clamping mechanism (300) is used for installing a switch to be tested, the testing mechanism (400) is used for testing the durability of the switch and detecting the pressing force required by the current closing of the switch after preset pressing times at intervals, and the touch screen (200) is used for changing the operation parameters of the testing mechanism (400).

2. The automatic switch endurance test stand of claim 1, further comprising: clamping machine constructs (300) including setting up mount (301) on experimental desktop (101), slidable mounting has flexible mounting bracket (305) on mount (301), and detachable flexible mounting board (310) of installing on flexible mounting bracket (305), flexible mounting board (310) are provided with the model of a plurality of not unidimensional, still install the straight line module a that is used for ordering about flexible mounting bracket (305) and takes place to remove on mount (301).

3. The automatic switch endurance test stand of claim 2, further comprising: the flexible mounting (305) is provided with two test positions: test position one and test position two are provided with proximity switch on mount (301), and proximity switch is provided with two sets ofly along the moving direction of flexible mounting bracket (305), and the position of flexible mounting bracket (305) is realized with sharp module a cooperation to two sets of proximity switch.

4. The automatic switch endurance test stand of claim 2, further comprising: the linear module a comprises a screw rod a (302) and a guide rail a (303) which are arranged on a fixed frame (301) and are parallel to each other, a flexible mounting frame (305) is in sliding connection with the guide rail a (303) and is in threaded connection with the screw rod a (302) at the same time, and the input end of the screw rod a (302) is in power connection with a motor a (304).

5. The automatic switch endurance test stand of claim 4, further comprising: the fixed frame (301) is also provided with two groups of travel switches which are respectively positioned at two ends of the screw rod a (302).

6. The automatic switch endurance test stand of claim 3, further comprising: the testing mechanism (400) faces the flexible mounting frame (305), and the testing mechanism (400) comprises testing members which are arranged in a plurality of groups along the moving direction array of the flexible mounting frame (305).

7. The automatic switch endurance test stand of claim 6, further comprising: the testing component comprises a fixed seat (401) arranged on the testing desktop (101), a mounting seat (405) is arranged on the fixed seat (401) in a sliding mode, a linear module b used for driving the mounting seat (405) to move is further arranged on the fixed seat (401), a detection rod (408) extends towards one side of the clamping mechanism (300) of the mounting seat (405), and a pressure testing strain gauge (409) is arranged at the free end of the detection rod (408).

8. The automatic switch endurance test stand of claim 7, further comprising: one side of the fixed seat (401) facing the clamping mechanism (300) is further provided with an air cylinder (406), when the flexible mounting frame (305) is in a test position I, the output end of the air cylinder (406) is opposite to the switch, and when the flexible mounting frame (305) is in a test position II, the detection rod (408) is opposite to the switch.

9. The automatic switch endurance test stand of claim 7, further comprising: the linear module b comprises a screw rod b (402) and a guide rail b (403) which are arranged on a fixed seat (401) and are parallel to each other, the screw rod b (402) is perpendicular to the screw rod a (302), an installation seat (405) is in sliding connection with the guide rail b (403) and is in threaded connection with the screw rod b (402) at the same time, and the input end of the screw rod b (402) is in power connection with a motor b (404).

10. The automatic switch endurance test stand of claim 8, further comprising: the output end of the air cylinder (406) is provided with a rubber cap (407), and the air cylinder (406) is provided with a one-way throttle valve (410).