Quick-action switch aging test equipment

Abstract

The utility model discloses quick-action switch aging test equipment, which comprises a test equipment rack, a test part and an execution mechanism outer cover, and is characterized in that the test part fixes a quick-action switch at a specified position, and a cam group and a test mounting plate are driven to move up and down through a servo motor, so that the quick-action switch aging test process is carried out; and a plurality of wiring sockets are arranged at the upper end of the test equipment rack and are used for being connected with an internal circuit of the quick-acting switch, so that the quick-acting switch is monitored in real time from the electrical aspect. According to the embodiment of the invention, by adopting a mode of combining electrical hardware and control software, through a technical means of realizing electrical connection on the quick-action switch and monitoring the quick-action switch on line, the technical problems of relatively poor test precision, relatively low test efficiency and relatively large test error existing in traditional quick-action switch aging test equipment are effectively solved, and the test accuracy of the quick-action switch aging test equipment is improved. Therefore, the technical effects of large batch, large scale, high test efficiency and small test error of the quick-action switch in the aging test process are realized.

Description

Technical Field

[0001] The present application relates to the field of switch reliability testing equipment, and in particular to a fast-acting switch aging testing equipment. Background Art

[0002] As the market demand for snap-action switches continues to increase, snap-action switches have made rapid progress in the field of auxiliary control switches for rail transit vehicles, such as door machine systems, driver controllers, DC contactors, high-speed circuit breakers, control buttons, toggle switches, 10,000-turn switches, and lock switches, with their features of double-break contacts, forced disconnection of contacts, self-cleaning contacts, magnetic arc extinguishing, and electrical isolation. Snap-action switches are prone to accelerated aging, insensitive switching and control contacts, which can lead to damage to the snap-action switches and huge losses in production and mechanical operation. Therefore, snap-action switches must undergo rigorous aging tests to ensure that they meet the highest safety standards.

[0003] The aging test of the quick-acting switch requires repeated opening and closing of the test sample and measurement of the loop resistance when the power is on. During the test, the switch is repeatedly opened and closed at a high frequency and repeated many times. The traditional aging test of the quick-acting switch is manually operated. This test method is inefficient and labor-intensive, and it is difficult to meet the aging test requirements of a large number of samples required for large-scale production. Therefore, improving the aging test method of the quick-acting switch will help to achieve the standardization and autonomy of the core components of the rail transit system.

[0004] In addition, the traditional snap-action switch aging test has poor test accuracy and is prone to large test errors. Therefore, it is very necessary to use automatic and efficient snap-action switch aging detection equipment for testing. Utility Model Content

[0005] The embodiments of the present application provide a quick-acting switch aging test device, which solves the problems of poor test accuracy, large test errors and low test efficiency in the prior art quick-acting switch aging test device, thereby achieving the purpose of large-scale, large-scale, high test efficiency and small test errors in the measurement process of the quick-acting switch aging test.

[0006] To achieve the above-mentioned purpose, the present application provides the following technical solutions: a fast-acting switch aging test equipment, comprising a test equipment frame and a test part, wherein the test part is fixedly connected to the top of the test equipment frame; the test part comprises a driving side test fixture assembly, a follower side test fixture assembly and a servo motor; the base of the driving side test fixture assembly is fixedly connected to the test equipment frame, and the driving side test fixture assembly is provided with a first cam group near the base, the first cam group comprises a plurality of first rotating cams and a first connecting shaft, and the plurality of first rotating cams are sleeved on the outer side of the first connecting shaft along the axial direction of the first connecting shaft and are fixedly connected to the outer side of the first connecting shaft; the two ends of the first connecting shaft pass through the two sides of the driving side test fixture assembly and are rotatably connected between the driving side test fixture assembly; the base of the follower side test fixture assembly is fixedly connected to the test equipment frame, and the follower side test fixture assembly is provided with a first cam group near the base, and the first cam group comprises a plurality of first rotating cams and a first connecting shaft. The first rotating cams are sleeved on the outer side of the first connecting shaft along the axial direction of the first connecting shaft and are fixedly connected to the outer side of the first connecting shaft; the two ends of the first connecting shaft pass through the two sides of the driving side test fixture assembly and are rotatably connected between the driving side test fixture assembly; the base of the follower side test fixture assembly is fixedly connected to the test equipment frame, and the follower side test fixture assembly is fixedly connected to the test equipment frame. A second cam group is provided near the base of the assembly, and the second cam group includes a plurality of second rotating cams and a second connecting shaft, and the plurality of second rotating cams are sleeved on the outer side of the second connecting shaft along the axial direction of the second connecting shaft and are fixedly connected to the outer side of the second connecting shaft; both ends of the second connecting shaft pass through both sides of the follower-side test fixture assembly and are rotatably connected with the follower-side test fixture assembly; the servo motor is provided at one end of the driving-side test fixture assembly, the base of the servo motor is fixedly connected to the test equipment frame, and the output shaft of the servo motor is fixedly connected to one end of the first connecting shaft; a linkage is also provided at one end of the driving-side test fixture assembly away from the servo motor; one end of the linkage is transmission-connected to one end of the first connecting shaft away from the servo motor, and the other end of the linkage is transmission-connected to one end of the second connecting shaft, so that the second connecting shaft rotates synchronously with the first connecting shaft.

[0007] Preferably, it also includes an actuator cover, which is arranged on the upper end of the test equipment frame and forms a cavity with the upper surface of the test equipment frame for accommodating the test part.

[0008] Preferably, an actuator cover is provided at the upper end of the actuator housing; one end of the actuator cover is rotatably connected to one end of the actuator housing, and the other end of the actuator cover is detachably connected to the other end of the actuator housing.

[0009] Preferably, the test equipment rack is hollow inside, and a pair of symmetrically openable cabinet doors are provided on one side of the test equipment rack, and both ends of the cabinet doors are connected to the test equipment rack by hinges. The test equipment rack is hollow inside and is used to install and store electronic equipment and circuits required for the aging test of the quick-acting switch.

[0010] Preferably, the test part further includes a plurality of connection sockets, and the connection sockets are fixedly connected to the top of the test equipment rack.

[0011] Preferably, it also includes a sample pressure strip and a quick pressing clamp; the sample pressure strip and the quick pressing clamp are provided on the top of both ends of the driving side test fixture assembly and the follower side test fixture assembly; the sample pressure strip is engaged and connected with the top of the driving side test fixture assembly and the follower side test fixture assembly, and the quick pressing clamp is fixedly connected with the top of the driving side test fixture assembly and the follower side test fixture assembly; the quick pressing clamp is used to fasten the sample pressure strip to the driving side test fixture assembly and / or the follower side test fixture assembly.

[0012] Preferably, the test part further includes a camera, which is fixed to the upper end of the test equipment frame, and is used to monitor the test status of the drive side test tooling assembly in real time.

[0013] One or more technical solutions provided in the embodiments of the present application have at least the following technical effects or advantages:

[0014] The embodiment of the present application adopts a combination of electrical hardware and control software, and uses technical means to realize electrical connection of the snap-action switch and online monitoring of the test process of the snap-action switch, thereby effectively solving the technical problems of poor test accuracy, low test efficiency and large test error in traditional snap-action switch aging test equipment, thereby achieving the technical effect of large-scale, large-scale, high test efficiency and small test error in the measurement process of the snap-action switch aging test. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the description of the embodiments of the present application will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0016] Figure 1 A schematic diagram of the overall structure of a fast-acting switch aging test device provided in an embodiment of the present application;

[0017] Figure 2 A schematic diagram of the main structure of a fast-acting switch aging test device provided in an embodiment of the present application;

[0018] Figure 3 A schematic diagram of the structure of the test part of a fast-acting switch aging test device provided in an embodiment of the present application;

[0019] Figure 4A schematic diagram of the test principle of a quick-acting switch aging test device provided in an embodiment of the present application.

[0020] Reference numerals:

[0021] 1-test equipment rack, 2-test part, 3-actuator cover;

[0022] 21-driving side test fixture assembly, 22-following side test fixture assembly, 23-servo motor, 24-coupling device, 25-connection socket, 26-camera;

[0023] 211-first cam assembly, 212-sample pressure strip, 213-quick pressure clamp;

[0024] 221- second cam group;

[0025] 31-Actuator cover. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0027] In the description of the embodiments of the present application, it should be noted that the orientation or positional relationship indicated by the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the embodiments of the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operate within a specific range, and therefore cannot be understood as a limitation on the present application. The terms "first", "second", and "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. In addition, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection, a mechanical connection, an electrical connection, a direct connection, an indirect connection through an intermediate medium, or a connection between the two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

[0028] Reference Figure 1 As shown, an embodiment of the present application provides a quick-acting switch aging test device, including a test device frame 1, a test part 2 and an actuator cover 3. The test device frame 1 is hollow inside and is provided with a wire loop for use by the test part 2 and other electronic equipment.

[0029] A pair of cabinet doors that can be opened symmetrically are provided on one side of the test equipment rack 1. Both ends of the cabinet doors are connected to the test equipment rack 1 by hinges. The cabinet doors are provided with handles at the end away from the hinges (i.e., close to the contact point of the two cabinet doors). The handles can facilitate the test personnel to connect, adjust or repair the wire loop inside the test equipment rack 1 after pulling the cabinet doors outward, or take out the electronic equipment required for the fast-acting switch aging test from the inside of the test equipment rack 1.

[0030] refer to Figure 3 The test part 2 is arranged at the upper end of the test equipment rack 1, and the components included in the test part 2 are directly or indirectly fixedly connected to the test equipment rack 1.

[0031] refer to Figure 1 The actuator cover 3 is disposed on the upper end of the test equipment frame 1, and the actuator cover 3 is supported by the test equipment frame 1. The actuator cover 3 and the upper surface of the test equipment frame 1 form a cavity, and the test part 2 is inside the cavity. The actuator cover 3 is used to protect the test part 2 from external mechanical / electrical / chemical damage during the operation of the test part 2.

[0032] An actuator cover 31 is also provided on the actuator cover 3. One end of the actuator cover 31 can be connected to the actuator cover 3 by a hinge. A pair of clips are provided on the edge of the other end of the actuator cover 31 (i.e., the end away from the hinge connection with the actuator cover 3). The edge of the other end of the actuator cover 3 (i.e., the end away from the hinge connection with the actuator cover 31) is also provided with a pair of slots matching the specifications and positions of the clips. When the actuator cover 31 is covered on the actuator cover 3, the clips can cooperate with the slots to lock the actuator cover 31 and the actuator cover 3 to protect the test part 2.

[0033] like Figure 2 As shown, the test part 2 includes a driving side test fixture assembly 21, a test sample pressure strip 212 and a quick pressing clamp 213. The driving side test fixture assembly 21 includes a base, two oppositely arranged vertical plates and a test mounting plate. The base is fixedly connected to the test equipment frame 1. The two vertical plates are perpendicular to the base and oppositely arranged at the two ends of the shorter side of the base. The test mounting plate is installed between the two oppositely arranged vertical plates and is parallel to the base. The test mounting plate is limited between the two oppositely arranged vertical plates, but can move up and down within a certain range.

[0034] The driving side test fixture assembly 21 also includes a first cam group 211, which is installed between the base of the driving side test fixture assembly 21 and the test mounting plate. The first cam group 211 includes a plurality of first rotating cams and a first connecting shaft. The first connecting shaft passes through two oppositely arranged vertical plates of the driving side test fixture assembly 21. A plurality of first rotating cams are sleeved on the outer side of the first connecting shaft along the axial direction of the first connecting shaft and are fixedly connected to the outer side of the first connecting shaft. Both ends of the first connecting shaft pass through both sides of the driving side test fixture assembly 21 and are rotatably connected to the driving side test fixture assembly 21.

[0035] The tops of the two vertical plates are both provided with inner grooves, and the sample pressure strip 212 can be placed in the grooves and fit into the grooves. The quick pressing clamp 213 is fixed to the tops of the two vertical plates, and the fastening part of the quick pressing clamp 213 is directly above the grooves. When the sample pressure strip 212 is placed inside the grooves, locking the quick pressing clamp 213 can fix the position of the sample pressure strip 212 and prevent relative position sliding.

[0036] A plurality of test installation slots are also provided on the upper end of the test installation plate for fixing the test samples.

[0037] The test part 2 also includes a plurality of connection sockets 25 and a servo motor 23. The connection sockets 25 are distributed at the top of the test equipment rack 1, and the bottom of the connection sockets 25 is electrically connected to the wire loop inside the test equipment rack 1 for use by the test part 2. The wire loop can be electrically connected to a device that can collect the electrical properties of the connection sockets 25. The connection sockets 25 are used to connect the quick-acting switch to the wire loop inside the test equipment rack 1 when performing the quick-acting switch aging test, and then monitor the electrical state of the quick-acting switch in real time during the test.

[0038] The servo motor 23 is arranged at one end of the driving side test tooling assembly 21, the base of the servo motor 23 is fixedly connected to the top of the test equipment frame 1, and the output shaft of the servo motor 23 is transmission-connected to one end of the first connecting shaft, and the power input end of the servo motor 23 is electrically connected to the circuit inside the test equipment frame 1.

[0039] The test part 2 also includes a camera 26, which is fixed to the upper end of the test equipment frame 1, and the video acquisition part of the camera is aimed at one side of the drive side test tooling assembly 21. The camera 26 is used to monitor the test status of the drive side test tooling assembly 21 in real time.

[0040] refer to Figure 3The test part 2 also includes a follower-side test fixture assembly 22. The overall structure of the follower-side test fixture assembly 22 is the same as that of the driving-side test fixture assembly 21, but there is no servo motor 23 on one side of the follower-side test fixture assembly 22, and a second cam group 221 is provided near the base of the follower-side test fixture assembly 22. The second cam group 221 includes a plurality of second rotating cams and a second connecting shaft. Similar to the driving-side test fixture assembly 21, the plurality of second rotating cams are sleeved on the outer side of the second connecting shaft along the axial direction of the second connecting shaft and are fixedly connected to the outer side of the second connecting shaft.

[0041] The follower-side test fixture assembly 22 is connected to the drive-side test fixture assembly 21 through a linkage 24, one end of the linkage 24 is connected to the first connecting shaft of the drive-side test fixture assembly 21 away from the end of the servo motor 23, and the other end of the linkage 24 is connected to the second connecting shaft of the follower-side test fixture assembly 22. The function of the linkage 24 is to drive the first connecting shaft to rotate when the servo motor 23 is started, and during the rotation process, the first connecting shaft drives the second connecting shaft to rotate due to the existence of the linkage 24, thereby realizing that the drive-side test fixture assembly 21 and the follower-side test fixture assembly 22 can simultaneously perform aging tests on the quick-acting switches.

[0042] The first rotating cam and the second rotating cam are both in contact with and connected to the test mounting plate.

[0043] refer to Figure 4 The embodiment of the present application also proposes a quick-acting switch aging test system, which cooperates with the quick-acting switch aging test equipment proposed in the embodiment of the present application to complete the quick-acting switch aging test process. The quick-acting switch aging test system specifically includes: a console, an actuator, a test bench and corresponding assembly components and test components. Among them, the console realizes the loop signal collection, analysis and processing of the quick-acting switch. At the same time, the console can realize the drive control of the actuator. The actuator is used to control the execution bench to operate the quick-acting switch according to the specified requirements to realize the aging test of the quick-acting switch. The switch loop power supply is arranged inside the test equipment rack 1 to provide a regulated power supply for the entire system. The quick-acting switch aging test system also includes a signal processing unit and an isolation control unit, which are used to process the signal of the quick-acting switch undergoing aging test. The signals obtained by the signal processing unit and the isolation control unit are transmitted to the load and the video signal acquisition part, and then transmitted to the human-computer interaction unit. The user can set parameters such as the actuator loop resistance threshold and the number of cycle detections and start, pause, stop and other operations based on the software interface of the human-computer interaction unit.

[0044] The embodiment of the present application provides a snap-action switch aging test device for batch-implementing a switching mechanism reliability test and a loop resistance test of snap-action switch samples of a specified model.

[0045] The quick-acting switch aging test equipment is composed of an actuator housing, a driving side test fixture assembly 21, a follower side test fixture assembly 22, a servo transmission system mechanism, an actuator cover 3 and a detection control system.

[0046] The embodiments proposed in this application also relate to a master control unit, which is mainly divided into two parts: electrical hardware and control software.

[0047] 1. Hardware Configuration

[0048] The hardware includes motion control module, data acquisition module, power supply module, etc. It is also equipped with a video monitoring system to facilitate the collection, processing and supervision of daily aging test data.

[0049] 2. Control software

[0050] The control software is a special test operating system designed by software engineers for customers based on their usage requirements. It cooperates with the hardware to control the fast-acting switch aging test equipment proposed in this application through human-computer interaction, thereby realizing real-time control of the test process.

[0051] Example 1

[0052] The embodiment of the present application proposes an operation process flow of a fast-acting switch aging test device, which is as follows:

[0053] Turn off the main power supply and open the actuator cover 31 on the actuator housing 3.

[0054] Test samples of the same specifications are installed on the driving side test fixture assembly 21 and the following side test fixture assembly 22. The specific process is to loosen the quick clamps 213 at both ends of the two assemblies, remove the sample pressure strip 212, and place the test samples of the same specifications to be tested on the test installation plate, which is provided with a test installation groove that matches the test sample.

[0055] The test sample pressure strip 212 is installed so that the bottom of the test sample pressure strip 212 is aligned with the switch contact part of the test sample (specifically, the quick-action switch), and the quick-action pressing clamp 213 is locked.

[0056] Connect the connecting wires of each test sample to the connection socket 25, close the actuator cover 31, and turn on the power.

[0057] The servo motor 23 is started to drive the first cam group 211 to rotate. Under the action of the first rotating cam, the test installation plate moves up and down, and the test sample located at the upper end of the test installation plate also moves accordingly.

[0058] The switch portion of the test sample contacts the sample pressure strip 212 . Since the position of the sample pressure strip 212 is fixed and the test sample moves up and down, the test sample switches between the contact-disconnection state at a fixed frequency, and the fixed frequency changes with the change of the output shaft speed of the servo motor 23 .

[0059] Use the detection system to perform aging tests on the test samples and record the test data.

[0060] Although the present application provides method operation steps as described in the embodiments or flowcharts, more or fewer operation steps may be included based on conventional or non-creative labor. The order of steps listed in this embodiment is only one way of executing the order of many steps and does not represent the only execution order. When the actual device or client product is executed, it can be executed in sequence or in parallel according to the method shown in this embodiment or the accompanying drawings (for example, in a parallel processor or multi-threaded processing environment).

[0061] The above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit the present application. Although the present application has been described in detail with reference to the aforementioned embodiments, a person of ordinary skill in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some or all of the technical features thereof may be replaced by equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the present application.

Claims

1. A quick-acting switch aging test device, characterized in that: It comprises a test equipment frame (1) and a test part (2), wherein the test part (2) is fixedly connected to the top of the test equipment frame (1); The test part (2) comprises a driving side test fixture assembly (21), a follower side test fixture assembly (22) and a servo motor (23); The base of the driving side test fixture assembly (21) is fixedly connected to the test equipment frame (1); the driving side test fixture assembly (21) is provided with a first cam group (211) near the base; the first cam group (211) comprises a plurality of first rotating cams and a first connecting shaft; the plurality of first rotating cams are sleeved on the outer side of the first connecting shaft along the axial direction of the first connecting shaft and are fixedly connected to the outer side of the first connecting shaft; The two ends of the first connecting shaft pass through the two sides of the driving side test fixture assembly (21) and are rotatably connected to the driving side test fixture assembly (21); The base of the follower-side test fixture assembly (22) is fixedly connected to the test equipment frame (1); the follower-side test fixture assembly (22) is provided with a second cam group (221) near the base; the second cam group (221) comprises a plurality of second rotating cams and a second connecting shaft; the plurality of second rotating cams are sleeved on the outer side of the second connecting shaft along the axial direction of the second connecting shaft and are fixedly connected to the outer side of the second connecting shaft; The two ends of the second connecting shaft pass through the two sides of the follower-side test fixture assembly (22) and are rotatably connected to the follower-side test fixture assembly (22); The servo motor (23) is arranged at one end of the driving side test fixture assembly (21), the base of the servo motor (23) is fixedly connected to the test equipment frame (1), and the output shaft of the servo motor (23) is fixedly connected to one end of the first connecting shaft; A linkage (24) is also provided at one end of the driving side test fixture assembly (21) away from the servo motor (23); One end of the linkage (24) is transmission-connected to an end of the first connecting shaft away from the servo motor (23), and the other end of the linkage (24) is transmission-connected to one end of the second connecting shaft, so that the second connecting shaft rotates synchronously with the first connecting shaft.

2. The fast-acting switch aging test equipment according to claim 1, characterized in that: It also comprises an actuator cover (3), which is arranged on the upper end of the test equipment frame (1) and forms a cavity with the upper surface of the test equipment frame (1) for accommodating the test part (2).

3. The fast-acting switch aging test equipment according to claim 2, characterized in that: An actuator cover (31) is provided at the upper end of the actuator housing (3); One end of the actuator cover (31) is rotatably connected to one end of the actuator outer cover (3), and the other end of the actuator cover (31) is detachably connected to the other end of the actuator outer cover (3).

4. The fast-acting switch aging test equipment according to claim 1, characterized in that: The interior of the test equipment rack (1) is hollow; a pair of symmetrically openable cabinet doors are provided on one side of the test equipment rack (1); both ends of the cabinet doors are connected to the test equipment rack (1) via hinges; the interior of the test equipment rack (1) is hollow and is used to install and store electronic equipment and circuits required for the aging test of the quick-acting switch.

5. The fast-acting switch aging test equipment according to claim 1, characterized in that: The test part (2) also includes a plurality of connection sockets (25), and the connection sockets (25) are fixedly connected to the top of the test equipment rack (1).

6. The fast-acting switch aging test equipment according to claim 1, characterized in that: It also includes a sample pressing strip (212) and a quick pressing clamp (213); The tops of both ends of the driving side test fixture assembly (21) and the following side test fixture assembly (22) are provided with the test sample pressure strip (212) and the quick pressing clamp (213); The sample pressure strip (212) is engaged with the top of the driving side test fixture assembly (21) and the follower side test fixture assembly (22), and the quick pressing clamp (213) is fixedly connected with the top of the driving side test fixture assembly (21) and the follower side test fixture assembly (22); The quick pressing clamp (213) is used to fasten the sample pressure strip (212) to the driving side test fixture assembly (21) and / or the following side test fixture assembly (22).

7. The fast-acting switch aging test equipment according to claim 1, characterized in that: The test part (2) also includes a camera (26), which is fixed to the upper end of the test equipment frame (1), and the camera (26) is used to monitor the test status of the drive side test tool assembly (21) in real time.

Images