Automatic test equipment and test method for push rod switch

Abstract

The invention discloses automatic test equipment and a test method for a push rod switch. The automatic test equipment for the push rod switch comprises a base, a rotating assembly, a jacking assembly, a test assembly and a controller, the controller is connected with the rotating assembly, the jacking assembly, the testing assembly and the upper computer. According to the invention, the controller controls the rotating assembly to press the to-be-tested push rod switch arranged on the base, then controls the jacking assembly to jack the to-be-tested push rod switch to the first preset position and the second preset position in sequence, and controls the testing assembly to test the to-be-tested push rod switch in sequence at the same time; and then a test signal output by the test assembly is sent to the upper computer, so that automatic test of the push rod switch is realized, the test is more accurate, simpler and more convenient than manual test, and the test efficiency is higher.

Description

Technical Field

[0001] The present invention relates to the technical field of top rod switch testing, and in particular to an automatic testing device and a testing method for a top rod switch. Background Art

[0002] The ejector switch is an electrical switch with a simple and reliable structure. It is widely used in various occasions that require electrical control. When testing the ejector switch, it is necessary to accurately control the length of the ejector, which increases the difficulty of testing. The traditional testing method uses manual testing, that is, the ejector is first pressed into the appropriate length using a customized tooling, and then the insulation resistance tester, multimeter and other equipment are used to detect the connectivity and insulation of the contacts. The operation is cumbersome and the testing efficiency is low. Summary of the invention

[0003] The purpose of the present invention is to design an automatic testing device for a push rod switch in order to solve the above problems.

[0004] The present invention achieves the above-mentioned purpose through the following technical solutions: The automatic testing equipment of the ejector switch comprises: A base, the base is used to place the ejector switch to be tested and to position the ejector switch to be tested; A rotating assembly is disposed on the base; A lifting assembly is arranged below the base, and the lifting assembly is connected to the travel mechanism of the ejector switch to be tested; A test assembly, comprising a test probe, wherein the test probe is arranged at a contact point of the ejector switch to be tested, and the test assembly is used to test the ejector switch to be tested and output a corresponding test signal; A controller, wherein the controller is respectively connected to the rotating assembly, the lifting assembly, the testing assembly and the host computer, and the controller is used to control the rotating assembly to press the ejector switch to be tested, and control the lifting assembly to lift the ejector switch to be tested to a first preset position and a second preset position in sequence, and also control the testing assembly to test the ejector switch to be tested, and send the test signal output by the testing assembly to the host computer.

[0005] The present invention also provides an automated testing method for a top rod switch, which is applied to the automated testing device for the top rod switch. The automated testing method for the top rod switch comprises the following steps: Press the push rod switch to be tested tightly; Lifting the push rod switch to be tested to a first preset position and a second preset position in sequence, and testing the push rod switch to be tested in sequence; receiving a test signal; Displaying a test result corresponding to the test signal; Initialize the position of the ejector switch.

[0006] The beneficial effects of the present invention are: The automated testing equipment for the push rod switch controls the rotating assembly through a controller to press the push rod switch to be tested on the base, and then controls the lifting assembly to lift the push rod switch to be tested to the first preset position and the second preset position in sequence, and at the same time controls the test assembly to test the push rod switches to be tested in sequence, and then sends the test signal output by the test assembly to the host computer. After the test, the push rod switch is moved to the initial position, thereby realizing automated testing of the push rod switch. The test is more accurate, simpler and more efficient than manual testing. BRIEF DESCRIPTION OF THE DRAWINGS

[0007] Figure 1 It is an overall block diagram of the automatic testing equipment of the top rod switch of the present invention; Figure 2 It is a structural schematic diagram of the automatic testing equipment of the top rod switch of the present invention; Figure 3 It is a schematic diagram of the positioning structure of the automatic testing equipment of the top rod switch of the present invention; Figure 4 It is a structural schematic diagram of a lifting switch to be tested of an automated testing device for a lifting switch of the present invention; Figure 5 A schematic diagram of a flow chart of an embodiment of an automated testing device method for a top rod switch of the present invention; In the figure: 1-display component, 2-emergency stop button, 3-start button, 4-base, 5-switch of the ejector rod to be tested, 51-contact, 52-structural member, 53-travel mechanism, 10-host computer, 20-controller, 30-rotation component, 40-lifting component, 41-first lifting cylinder, 42-second lifting cylinder, 50-test component, 60-test probe. DETAILED DESCRIPTION

[0008] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.

[0009] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention claimed for protection, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0010] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0011] In the description of the present invention, it should be understood that the terms "upper", "lower", "inside", "outside", "left", "right", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, or are directions or positional relationships in which the product of the invention is usually placed when in use, or are directions or positional relationships commonly understood by those skilled in the art. These directions or positional relationships are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0012] Furthermore, the terms “first”, “second”, etc. are merely used for distinguishing descriptions and should not be understood as indicating or implying relative importance.

[0013] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms such as "setting" and "connection" should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0014] The specific implementation modes of the present invention are described in detail below in conjunction with the accompanying drawings.

[0015] like Figure 1-5 As shown, the automatic test equipment for the top rod switch includes: A base 4, wherein the base 4 is used to place the ejector switch 5 to be tested and to position the ejector switch 5 to be tested; A rotating assembly 30 is disposed on the base 4; A lifting assembly 40 is disposed below the base 4, and the lifting assembly 40 is connected to the travel mechanism 53 of the ejector switch 5 to be tested; The test assembly 50 has a test probe 60, and the test probe 60 is arranged at the contact 51 of the top rod switch 5 to be tested. The test assembly 50 is used to test the top rod switch 5 to be tested and output a corresponding test signal; A controller 20, wherein the controller 20 is respectively connected to the rotating assembly 30, the lifting assembly 40, the test assembly 50 and the host computer 10, and the controller 20 is used to control the rotating assembly 30 to press the top rod switch 5 to be tested, and control the lifting assembly 40 to lift the top rod switch 5 to be tested to the first preset position and the second preset position in sequence, and also control the test assembly 50 to test the top rod switch 5 to be tested, and send the test signal output by the test assembly 50 to the host computer 10.

[0016] Since the on-resistance of the top rod switch 5 to be tested is relatively small, this embodiment uses the function of the multimeter's four-wire resistance measurement system to implement the on-resistance test; since the insulation resistance of the top rod switch 5 to be tested is relatively large and there is a requirement for test voltage, this embodiment uses an insulation resistance tester to implement the insulation resistance test. Among them, the top rod switch includes a contact 51, a structural member 52 and a travel mechanism 53, wherein the contact 51 is the test point, which needs to be connected to the conduction and insulation conditions of the multimeter test point; the structural member 52 is used to fix the various components of the entire top rod switch; the travel mechanism 53 is used for travel control, and can be compressed upward by a certain distance to control the on and off of the switch.

[0017] In this embodiment, the dimensions of the automated test equipment for the top rod switch are 450 mm long, 300 mm wide, and 720 mm high. It is provided with a start button 3 and an emergency stop button 2. When the start button 3 is pressed by the user, the automated test equipment for the top rod switch is connected to the 220V mains power supply and starts working, i.e., enters the automated test mode to automatically test the top rod switch 5 to be tested. When the automated test equipment for the top rod switch fails or an emergency occurs, the user can press the emergency stop button 2 to stop the automated test equipment for the top rod switch. The base 4 is customized according to the shape of the top rod switch 5 to be tested to accurately fix the top rod switch 5 to be tested. The rotating assembly 30 can be implemented by a rotating assembly 30 such as a rotating cylinder to press the top rod switch 5 to be tested.

[0018] In this embodiment, the controller 20 can be implemented by any controller 20 that can control the rotating component 30, the lifting component 40 and the test component 50; the lifting component 40 can be implemented by a lifting component 40 such as a lifting cylinder, and the lifting component 40 is connected to the stroke mechanism 53 of the push rod switch 5 to be tested; further, the lifting component 40 includes a first lifting cylinder 41 and a second lifting cylinder 42, the first lifting cylinder 41 is used to lift the push rod switch 5 to be tested to a first preset position, and the second lifting cylinder 42 is used to lift the push rod switch 5 to be tested to a second preset position; that is, the two lifting cylinders are used to lift the push rod switch 5 to be tested in turn by two strokes, thereby realizing automatic switching of the test signal. It can be understood that when the controller 20 confirms that the push rod switch 5 to be tested is placed on the base 4, that is, the start button 3 is pressed by the user, the rotary cylinder is controlled to press the push rod switch 5 to be tested; the first lifting cylinder 41 is controlled to lift the push rod switch 5 to be tested to the first preset position, and the test assembly 50 is controlled to test the push rod switch 5 to be tested, that is, the on-resistance value of the push rod switch 5 to be tested is tested by the multimeter, and the insulation resistance value of the push rod switch 5 to be tested is tested by the insulation resistance tester; then the second lifting cylinder 42 is controlled to lift the push rod switch 5 to be tested. The test rod switch 5 is lifted to the second preset position, and the test component 50 is controlled to test the test rod switch 5; then, the test signal output by the test component 50 is transmitted to the host computer 10; finally, the rod switch is moved to the initial position, that is, the pressed rotating cylinder is released, and the first lifting cylinder 41 and the second lifting cylinder 42 are returned to the original position, thereby realizing the automatic test of the rod switch. Compared with the traditional manual test, the automatic test equipment of the rod switch is simpler, has higher test accuracy and higher test efficiency.

[0019] The automated testing equipment for the top rod switch of the present invention controls the rotating assembly 30 through the controller 20 to press the top rod switch 5 to be tested placed on the base 4, and then controls the lifting assembly 40 to lift the top rod switch 5 to be tested to the first preset position and the second preset position in sequence, and at the same time controls the test assembly 50 to test the top rod switch 5 to be tested in sequence, and then sends the test signal output by the test assembly 50 to the host computer 10, thereby realizing the automated testing of the top rod switch. The test is more accurate and simpler than the manual test, and the test efficiency is higher.

[0020] In one embodiment, the number of the push rod switches 5 to be tested is N, the number of the test components 50 is N, and the automated testing equipment for the push rod switches includes N switch components, each of which is disposed between the controller 20 and one of the test components 50.

[0021] Furthermore, the switch assembly is an electromagnetic relay.

[0022] In this embodiment, the automated test equipment for the top rod switch can test N top rod switches 5 to be tested at the same time. If N is 3, the number of test components 50 is 3, that is, 3 multimeters and 3 insulation resistance testers are required; since the multimeter and the insulation resistance tester have only single channels, a switch component needs to be set between the controller 20 and a test component 50, that is, multiple channels are expanded through multiple switch components to achieve parallel testing of multiple top rod switches 5 to be tested, thereby improving the test efficiency. Among them, the switch component is implemented by an electromagnetic relay, which is an "automatic switch" that uses a smaller current or a lower voltage to control a larger current or a larger voltage. It has the characteristics of high withstand voltage and is widely used in automatic control circuits.

[0023] In one embodiment, the automatic testing equipment for the push rod switch further includes a PCI bus, and the PCI bus is used to connect the controller 20 and the host computer 10 .

[0024] In this embodiment, a PCI (Peripheral Component Interconnect) bus connects the controller 20 and the host computer 10, and the controller 20 transmits data with the host computer 10 via the PCI bus, that is, the controller 20 transmits a test signal to the host computer 10 via the PCI bus, and the host computer 10 can also transmit a control instruction to the controller 20 via the PCI bus, thereby realizing high-speed data transmission.

[0025] In one embodiment, the automated testing device for the push rod switch further comprises a display component 1, and the display component 1 is connected to the controller 20; The controller 20 is used to control the display component 1 to work according to the test signal, and display the test result corresponding to the test signal.

[0026] In this embodiment, the controller 20 controls the display component 1 to work according to the test signal to display the test result corresponding to the test signal, so that the user can know the test result of the top rod switch more intuitively and distinguish between good and defective products, thereby improving the test efficiency.

[0027] The present invention also provides an automated testing method for a top rod switch, which is applied to the automated testing device for the top rod switch, and comprises the following steps: Press the push rod switch 5 to be tested; Lifting the push rod switch 5 to be tested to the first preset position and the second preset position in sequence, and testing the push rod switch 5 to be tested in sequence; receiving a test signal; Displaying a test result corresponding to the test signal; Initialize the position of the ejector switch.

[0028] In this embodiment, the controller 20 in the automated test equipment for the push rod switch controls the rotating cylinder to press the push rod switch 5 to be tested; then controls the first lifting cylinder 41 to lift the push rod switch 5 to be tested to the first preset position, and at the same time controls the test assembly 50 to test the push rod switch 5 to be tested, that is, the on-resistance value of the push rod switch 5 to be tested is tested by a multimeter, and the insulation resistance value of the push rod switch 5 to be tested is tested by an insulation resistance tester; then controls the second lifting cylinder 42 to lift the push rod switch 5 to be tested to the second preset position, and at the same time controls the test assembly 50 to test the push rod switch 5 to be tested. The test component 50 tests the ejector switch 5 to be tested; then, the display component 1 is controlled to display the corresponding test result according to the test signal output by the test component 50, so that the user can observe the test result of the ejector switch; finally, the position of the ejector switch is initialized, that is, the pressed rotating cylinder is released, and the first lifting cylinder 41 and the second lifting cylinder 42 are returned to their original positions, thereby realizing the automatic test of the ejector switch. Compared with the traditional manual test, the automatic test equipment of the ejector switch is simpler, has higher test accuracy and higher test efficiency.

[0029] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. An automated testing device for a push rod switch, characterized in that: The automatic testing equipment of the ejector switch comprises: A base, the base is used to place the ejector switch to be tested and to position the ejector switch to be tested; A rotating assembly is disposed on the base; A lifting assembly is arranged below the base, and the lifting assembly is connected to the travel mechanism of the ejector switch to be tested; A test assembly having a test probe, wherein the test probe is arranged at a contact point of the ejector switch to be tested, and the test assembly is used to test the ejector switch to be tested and output a corresponding test signal; A controller, wherein the controller is respectively connected to the rotating assembly, the lifting assembly, the testing assembly and the host computer, and the controller is used to control the rotating assembly to press the ejector switch to be tested, and control the lifting assembly to lift the ejector switch to be tested to a first preset position and a second preset position in sequence, and also control the testing assembly to test the ejector switch to be tested, and send the test signal output by the testing assembly to the host computer.

2. The automatic testing equipment for the top rod switch according to claim 1, characterized in that: The lifting assembly includes a first lifting cylinder and a second lifting cylinder, wherein the first lifting cylinder is used to lift the push rod switch to be tested to a first preset position, and the second lifting cylinder is used to lift the push rod switch to be tested to a second preset position.

3. The automatic testing equipment for the top rod switch according to claim 1, characterized in that: The number of the push rod switches to be tested is N, the number of the test components is N, and the automated testing equipment for the push rod switches includes N switch components, each of which is arranged between the controller and one of the test components.

4. The automatic testing equipment for the top rod switch according to claim 3, characterized in that: The switch component is an electromagnetic relay.

5. The automatic testing equipment for the top rod switch according to claim 1, characterized in that: The automatic testing equipment for the push rod switch also includes a PCI bus, and the PCI bus is used to connect the controller and the host computer.

6. The automatic testing equipment for the top rod switch according to claim 1, characterized in that: The automated testing device for the ejector switch further comprises a display component, wherein the display component is connected to the controller; The controller is used to control the display component to work according to the test signal, and display the test result corresponding to the test signal.

7. An automated testing method for a top rod switch, applied to an automated testing device for a top rod switch as claimed in any one of claims 1 to 6, characterized in that: The automated testing method for the ejector switch comprises the following steps: Press the push rod switch to be tested tightly; Lifting the push rod switch to be tested to a first preset position and a second preset position in sequence, and testing the push rod switch to be tested in sequence; receiving a test signal; Displaying a test result corresponding to the test signal; Initialize the position of the ejector switch.

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