Life test equipment and systems

Abstract

The present invention provides a life test device and system, wherein the life test device includes: a lower computer, an industrial computer, a cylinder module, a servo motor module, a product to be tested and a data acquisition instrument, wherein the cylinder module includes a plurality of cylinders, and the servo motor module includes a plurality of servo motors; the lower computer is respectively connected to the cylinder module and the servo motor module, the data acquisition instrument is connected to the industrial computer for communication, the product to be tested is connected to the data acquisition instrument, and the industrial computer is connected to the lower computer for communication; the lower computer controls the opening or closing of the corresponding cylinder module and the servo motor module according to the test mode, and the test mode includes a cylinder test mode, a servo test mode and a servo cylinder test mode; the data acquisition instrument is used to collect test data of the product to be tested. The present invention has three test modes, and can perform mechanical life test or electrical life test on the product to be tested, automatically monitor the test state and judge the result, thereby improving the efficiency of product life test.

Description

Technical Field

[0001] The present invention relates to the technical field of product life testing, and in particular to a life testing device and system. Background Art

[0002] The testing mode of life testers in the electric tool switch industry is relatively simple, and multiple testers are needed to implement life tests in different directions, which cannot meet the increasingly diverse product testing requirements.

[0003] During the test, the test status cannot be monitored in real time, the test results cannot be automatically determined, and the functions of each product cannot be tested during the test. After the target cycle is completed, the machine needs to be manually disassembled to test its functions and then reassembled to continue the life test. The functional test process is cumbersome, which leads to longer test time and slower product development speed.

[0004] Based on this, the present invention proposes a life test device and system. Summary of the invention

[0005] In view of this, the purpose of the present invention is to provide a life test device and system, which has three test modes and can monitor the test status in real time, automatically determine the test results, and automatically detect the life of product functions.

[0006] In the first aspect, an embodiment of the present invention provides a life test device, including: a lower computer, an industrial computer, a cylinder module, a servo motor module, a product to be tested and a data acquisition instrument, the cylinder module includes multiple cylinders, and the servo motor module includes multiple servo motors; the lower computer is connected to the cylinder module and the servo motor module respectively, the data acquisition instrument is communicatively connected to the industrial computer, the product to be tested is connected to the data acquisition instrument, and the industrial computer is communicatively connected to the lower computer; the cylinder module is used to drive the cylinder to perform a vertical downward movement on the product to be tested; the servo motor module is used to drive the servo motor to perform a horizontal movement on the product to be tested; the industrial computer is used to send control instructions to the lower computer; the lower computer is used to determine a test mode according to the control instruction, and control the opening or closing of the corresponding cylinder module and servo motor module according to the test mode, wherein the test mode includes a cylinder test mode, a servo test mode and a servo cylinder test mode; the data acquisition instrument is used to collect test data of the product to be tested and send the test data to the industrial computer, wherein the test data includes: waveform, voltage, current, resistance, impedance and temperature of the product to be tested.

[0007] In a preferred embodiment of the present invention, the cylinder is connected to two proximity switches, and the proximity switches are used to detect the position of the cylinder.

[0008] In a preferred embodiment of the present invention, the life test device also includes a signal conversion module, which is connected to a lower computer; the signal conversion module is used to collect feedback signals from the product to be tested and send the feedback signals to the lower computer, wherein the feedback signals represent status information of the product to be tested, and the status information includes intact status and damaged status; the lower computer is also used to control the cylinder module and the servo motor module to continue working or stop working according to the feedback signals; the industrial computer is also used to display the test data in a graphical manner.

[0009] In a preferred embodiment of the present invention, the life test device further includes a test machine base and a test fixture, the test machine base is used to fix the cylinder module and the servo motor module, and the test fixture is used to fix the product to be tested.

[0010] In a preferred embodiment of the present invention, the life test device further includes a control box, and the industrial computer is arranged in the control box.

[0011] In a preferred embodiment of the present invention, the life test device also includes an industrial control touch screen, which is arranged on the control box and connected to the lower computer for human-computer interaction to set the test mode and send the test mode to the lower computer.

[0012] In a preferred embodiment of the present invention, the USB interface of the industrial computer is connected to the RS232 communication interface of the slave computer.

[0013] In a preferred embodiment of the present invention, the lower computer is a programmable logic controller.

[0014] In a second aspect, an embodiment of the present invention further provides a life test system, comprising: a server and the above-mentioned life test device, the server being communicatively connected with the life test device; the life test device being used to upload test data to the server; and the server being used to receive test data.

[0015] In a preferred embodiment of the present invention, the life test system further includes an industrial camera, which is used to obtain a test video of the life test device and upload the test video to a server.

[0016] The embodiments of the present invention bring the following beneficial effects:

[0017] The embodiment of the present invention provides a life test device and system, wherein the life test device includes: a lower computer, an industrial computer, a cylinder module, a servo motor module, a product to be tested and a data acquisition instrument, wherein the cylinder module includes multiple cylinders, and the servo motor module includes multiple servo motors; the lower computer is connected to the cylinder module and the servo motor module respectively, the data acquisition instrument is connected to the industrial computer for communication, the product to be tested is connected to the data acquisition instrument, and the industrial computer is connected to the lower computer for communication; the cylinder module is used to drive the cylinder to perform a vertical downward pressure action on the product to be tested; the servo motor module is used to drive the servo motor to perform a horizontal action on the product to be tested; the industrial computer is used to send a control instruction to the lower computer; the lower computer is used to determine a test mode according to the control instruction, and control the opening or closing of the corresponding cylinder module and servo motor module according to the test mode, wherein the test mode includes a cylinder test mode, a servo test mode and a servo cylinder test mode; the data acquisition instrument is used to collect test data of the product to be tested and send the test data to the industrial computer, wherein the test data includes: waveform, voltage, current, resistance, impedance and temperature of the product to be tested. The present invention has three test modes, can perform mechanical life test or electrical life test on the product to be tested, automatically monitor the test status and judge the result, and improve the efficiency of product life test.

[0018] Other features and advantages disclosed in the embodiments of the present invention will be described in the following description, or some features and advantages can be inferred or determined without doubt from the description, or can be learned by implementing the above-mentioned technologies disclosed in the embodiments of the present invention.

[0019] In order to make the above-mentioned purposes, features and advantages disclosed in the embodiments of the present invention more obvious and understandable, preferred embodiments are specifically cited below and described in detail with reference to the attached drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0021] Figure 1 A schematic diagram of the structure of a life test device provided by an embodiment of the present invention;

[0022] Figure 2 A schematic diagram of the structure of another life test device provided by an embodiment of the present invention;

[0023] Figure 3 A schematic diagram of the structure of a life test system provided by an embodiment of the present invention;

[0024] Figure 4 A schematic diagram of the structure of another life test system provided by an embodiment of the present invention.

[0025] Icons: 100-life test device; 110-slave computer; 120-industrial computer; 130-cylinder module; 140-servo motor module; 150-product to be tested; 160-data acquisition instrument; 170-proximity switch; 172-signal conversion module; 174-test machine base; 176-test fixture; 178-control box; 180-industrial control touch screen; 200-life test system; 210-server; 220-industrial camera. DETAILED DESCRIPTION

[0026] To make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all of the embodiments. The components of the embodiments of the present application generally described and shown in the drawings here can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the application claimed for protection, but merely represents the selected embodiments of the present application. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without making creative work belong to the scope of protection of the present application.

[0027] As mentioned in the background technology above, the testing mode of the life test machine in the electric tool switch industry is relatively simple, and multiple test machines are required to implement life tests in different directions, which cannot meet the increasingly diverse product testing requirements. During the test, the test status cannot be monitored in real time and the test results cannot be automatically determined, and the functions of each product cannot be detected during the test. After the target cycle is completed, the machine needs to be manually disassembled to test its functions and then reassembled to continue the life test. The functional testing process is cumbersome, which leads to longer testing time and slower product development.

[0028] Based on this, the life test device and system provided by the embodiment of the present invention have three test modes and can monitor the test status in real time, automatically determine the test results, and automatically detect the life of the product function.

[0029] To facilitate understanding of this embodiment, a life test device disclosed in an embodiment of the present invention is first introduced in detail.

[0030] Example 1

[0031] The embodiment of the present invention provides a life test device, see Figure 1The structural diagram of a life test device shown in the figure, the life test device 100 includes: a lower computer 110, an industrial computer 120, a cylinder module 130, a servo motor module 140, a product to be tested 150 and a data acquisition instrument 160, the cylinder module 130 includes a plurality of cylinders, and the servo motor module 140 includes a plurality of servo motors;

[0032] The lower computer 110 is connected to the cylinder module 130 and the servo motor module 140 respectively, the data acquisition instrument 160 is connected to the industrial computer 120 for communication, the product to be tested 150 is connected to the data acquisition instrument 160, and the industrial computer 120 is connected to the lower computer 110 for communication;

[0033] The above-mentioned product to be tested 150 may be multiple products to be tested. By fast switching, the tests on multiple products to be tested 150 can be completed at the same time, thereby improving the competitiveness of the products.

[0034] The above-mentioned cylinder module 130 is used to drive the cylinder to perform a vertical downward pressing action on the product to be tested 150; the cylinder module 130 includes multiple vertical cylinders. When the cylinder module 130 is started, the cylinder module 130 can drive the cylinder to move in the vertical direction, perform a vertical pressure test on the product to be tested 150, and obtain the vertical direction test result of the product to be tested 150.

[0035] The above-mentioned servo motor module 140 is used to drive the servo motor to perform horizontal movement on the product to be tested 150; the servo motor module 140 includes multiple servo motors in the horizontal direction. When the servo motor module 140 is started, the servo motor module 140 can drive the servo motor to move in the horizontal direction, perform a horizontal pressure test on the product to be tested 150, and obtain a horizontal test result of the product to be tested 150.

[0036] The industrial computer 120 is used to send control instructions to the lower computer 110; the industrial computer 120, as a host computer, can set parameters according to the test requirements and determine the control instructions according to the set parameters. The industrial computer 120 remotely sends control instructions to the lower computer 110 to indirectly control the opening or closing of the cylinder module 130 and the servo motor module 140 through the lower computer 110. The industrial computer 120 can also read test data, such as reading the horizontal direction test results or vertical direction test results of the product to be tested 150. The host computer displays the test data in images through the Labview self-written program and then transmits it to the server.

[0037] The above-mentioned lower computer 110 is used to determine the test mode according to the control instruction, and control the opening or closing of the corresponding cylinder module 130 and the servo motor module 140 according to the test mode, wherein the test mode includes a cylinder test mode, a servo test mode and a servo cylinder test mode; after receiving the control instruction sent by the industrial computer 120, the lower computer 110 determines the test mode according to the control instruction. When the test mode is the cylinder test mode, the lower computer 110 only turns on the cylinder module 130, performs a vertical pressure test on the product to be tested 150, and obtains a vertical test result; when the test mode is the servo test mode, the lower computer 110 only turns on the servo motor module 140, performs a horizontal pressure test on the product to be tested 150, and obtains a horizontal test result; when the test mode is the servo cylinder test mode, the lower computer 110 starts the cylinder module 130 and the servo motor module 140 at the same time, performs vertical and horizontal pressure tests on the product to be tested 150, and obtains a two-way test result. The lower computer 110 can set a target test period through a program to automatically cycle the test, automatically determine the test results, and upload the test results to the upper computer, that is, the industrial computer 120.

[0038] The data acquisition instrument 160 is used to collect test data of the product to be tested 150 and send the test data to the industrial computer 120, wherein the test data includes: waveform, voltage, current, resistance, impedance and temperature of the product to be tested 150. The data acquisition instrument 160 collects test data of the product to be tested 150 in real time during the test process. The data acquisition instrument 160 can also collect the vertical direction test results, horizontal direction test results and bidirectional test results. The collected test data is sent to the industrial computer 120, and the industrial computer 120 uploads the test data to the server to realize cloud sharing, and assign different permissions to relevant technicians for remote viewing, making data sharing more intelligent.

[0039] A life test device provided by an embodiment of the present invention has three test modes, namely, a cylinder test mode, a servo test mode and a servo cylinder test mode. By starting a single cylinder module, a single servo motor module and starting the cylinder module and servo motor module at the same time, the life test in the vertical and horizontal directions can be switched arbitrarily, and the cylinder and servo motor can be driven simultaneously for testing, thus realizing the diversification of the test modes. It can also test multiple products to be tested simultaneously through rapid switching, automatically monitor the test status, improve the test efficiency, speed up the product development, and enhance the competitiveness of the product.

[0040] See also Figure 2 The structural diagram of another life test device shown in the figure, the life test device 100 may also include: a proximity switch 170, a signal conversion module 172, a test machine base 174, a test fixture 176, a control box 178 and an industrial control touch screen 180;

[0041] As mentioned above, the cylinder module 130 may include 8 groups of cylinders, and the cylinders are connected to two proximity switches 170, and the proximity switch 170 is used to detect the position of the cylinder, and the proximity switch 170 may be a magnetic proximity switch 170. The lower computer 110 is a PLC (Programmable Logic Controller) that can receive signals from the photoelectric switch or the magnetic proximity switch 170, and control the servo motor and the cylinder action through a program.

[0042] See the cylinder action setting interface shown in Table 1 below;

[0043]

[0044]

[0045] Table 1

[0046] As can be seen from Table 1, the 8 groups of cylinders can be custom programmed for one cycle to achieve various combined actions of the 8 groups of cylinders to meet the product test action requirements.

[0047] The above-mentioned signal conversion module 172 is connected to the lower computer 110; the signal conversion module 172 is arranged inside the control box 178; the signal conversion module 172 is used to collect the feedback signal of the product to be tested 150, and send the feedback signal to the lower computer 110, wherein the feedback signal represents the status information of the product to be tested 150, and the status information includes an intact state and a damaged state; the lower computer 110 is also used to control the cylinder module 130 and the servo motor module 140 to continue working or stop working according to the feedback signal; the industrial computer 120 is also used to display the test data in a graphical manner.

[0048] When conducting a mechanical life test on the product 150 to be tested, the lower computer 110 can collect the feedback signal generated during the test of the product 150 through the connected signal conversion module 172 to monitor the real-time test status of the product 150 to determine whether the status information of the product 150 to be tested is in good condition or in a damaged condition. When the status information of the product 150 to be tested is in a damaged condition, the lower computer 110 stops the test of the product 150 by shutting down the cylinder module 130 and the servo motor module 140, and immediately sounds an alarm to remind the staff to check the test site in time and upload the test data to the industrial computer 120.

[0049] When conducting an electrical life test on the product 150 to be tested, the industrial computer 120 sends a control instruction to the lower computer 110 via the USB to RS232 communication interface. The lower computer 110 executes the control instruction, and the industrial computer 120 communicates with the data acquisition instrument 160 via Ethernet to monitor the temperature, voltage and current signals of the product 150 to be tested during the test process, and determine whether it meets the preset test conditions. When the status information of the product 150 to be tested is in a damaged state, the test of the product 150 to be tested is stopped, and the test data of the entire test process is recorded. The test data is displayed in a graphical manner on the control interface of the industrial computer 120, and the test data is uploaded to the server. The test data is also shared with the lower computer 110, so that on-site testers can understand the test situation in real time.

[0050] When the target cycle is completed, the function of the product under test 150 can be automatically detected, and the waveform, VR resistance, impedance, temperature rise and other signals of the product can be automatically collected in cooperation with the lower computer 110 according to the preset program, and the test data can be monitored and recorded, and uploaded to the server by the industrial computer 120.

[0051] The above-mentioned test machine base 174 and test fixture 176, the test machine base 174 is used to fix the cylinder module 130 and the servo motor module 140, and the test fixture 176 is used to fix the product to be tested 150.

[0052] The industrial computer 120 is disposed in a control box 178, and a PC switch controls the startup or shutdown of the industrial computer.

[0053] The industrial control touch screen 180 is arranged on the control box 178, and is connected to the lower computer 110, and is used for setting the test mode by human-computer interaction, and sending the test mode to the lower computer 110. The industrial control touch screen 180 can monitor the status information of the product to be tested 150, set parameters by human-computer interaction, and perform on-site operation.

[0054] The USB interface of the industrial computer 120 is connected to the RS232 communication interface of the slave computer 110 .

[0055] The above-mentioned lower computer 110 is a programmable logic controller.

[0056] The life test device 100 may further include a pressure gauge, which is disposed outside the control box 178 and is used to measure the pressure value to which the product 150 to be tested is subjected during the test.

[0057] The life test device 100 may further include a buzzer alarm. When the status information of the product to be tested 150 is a damaged state, an alarm sound is immediately issued to prompt the staff to check the test site in time, so that product failure detection is more timely.

[0058] Example 2

[0059] The embodiment of the present invention provides a life test system. Figure 3 The structural diagram of a life test system shown in the figure, the life test system 200 comprises: a server 210 and the life test device 100, the server 210 is in communication connection with the life test device 100;

[0060] The above-mentioned life test device 100 is used to upload the test data to the server 210;

[0061] The server 210 is used to receive test data.

[0062] See also Figure 4 As shown in the structural schematic diagram of another life test system, the above-mentioned life test system 200 may also include an industrial camera 220, which is used to obtain the test video of the life test device 100 and upload the test video to the server 210.

[0063] The above-mentioned industrial camera 220 can be a CCD (charge coupled device) camera.

[0064] The life test system provided in the embodiment of the present invention has the same technical features as the life test device provided in the above embodiment, and can therefore solve the same technical problems and achieve the same technical effects.

[0065] Those skilled in the art can clearly understand that, for the convenience and brevity of description, the specific working process of the system and device described above can refer to the corresponding process in the aforementioned method embodiment, and will not be repeated here.

[0066] In addition, in the description of the embodiments of the present invention, unless otherwise clearly specified and limited, 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; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the internal communication of two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0067] If the above functions are implemented in the form of software functional units and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present invention, or the part that contributes to the prior art, or the part of the technical solution, can be embodied in the form of a software product. The computer software product is stored in a storage medium, including several instructions for a computer device (which can be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the methods of various embodiments of the present invention. The aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), disk or optical disk, etc., which can store program codes.

[0068] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0069] Finally, it should be noted that the above embodiments are only specific implementations of the present invention, which are used to illustrate the technical solutions of the present invention, rather than to limit them. The protection scope of the present invention is not limited thereto. Although the present invention is described in detail with reference to the above embodiments, those skilled in the art should understand that any person skilled in the art can still modify the technical solutions recorded in the above embodiments within the technical scope disclosed by the present invention, or can easily think of changes, or make equivalent replacements for some of the technical features therein; and these modifications, changes or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present invention, and should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention shall be based on the protection scope of the claims.

Claims

1. A life test device, characterized in that: include: A lower computer, an industrial computer, a cylinder module, a servo motor module, a product to be tested and a data acquisition instrument, wherein the cylinder module includes a plurality of cylinders, and the servo motor module includes a plurality of servo motors; The lower computer is connected to the cylinder module and the servo motor module respectively, the data acquisition instrument is connected to the industrial computer for communication, the product to be tested is connected to the data acquisition instrument, and the industrial computer is connected to the lower computer for communication; The cylinder module is used to drive the cylinder to vertically press down the product to be tested; The servo motor module is used to drive the servo motor to perform horizontal movement on the product to be tested; The industrial computer is used to send control instructions to the slave computer; The lower computer is used to determine the test mode according to the control instruction, and control the opening or closing of the corresponding cylinder module and the servo motor module according to the test mode, wherein the test mode includes a cylinder test mode, a servo test mode and a servo cylinder test mode; The data acquisition instrument is used to collect test data of the product to be tested and send the test data to the industrial computer, wherein the test data includes: waveform, voltage, current, resistance, impedance and temperature of the product to be tested.

2. The life test device according to claim 1, characterized in that: The cylinder is connected to two proximity switches, and the proximity switches are used to detect the position of the cylinder.

3. The life test device according to claim 1, characterized in that: The life test device further comprises a signal conversion module, and the signal conversion module is connected to the lower computer; The signal conversion module is used to collect the feedback signal of the product to be tested and send the feedback signal to the lower computer, wherein the feedback signal represents the status information of the product to be tested, and the status information includes an intact state and a damaged state; The lower computer is further used to control the cylinder module and the servo motor module to continue working or stop working according to the feedback signal; The industrial computer is also used to display the test data in a graphical manner.

4. The life test device according to claim 1, characterized in that: The life test device further comprises a test machine base and a test fixture, wherein the test machine base is used to fix the cylinder module and the servo motor module, and the test fixture is used to fix the product to be tested.

5. The life test device according to claim 1, characterized in that: The life test device further comprises a control box, and the industrial computer is arranged in the control box.

6. The life test device according to claim 5, characterized in that: The life test device also includes an industrial control touch screen, which is arranged on the control box and connected to the lower computer for human-computer interaction to set the test mode and send the test mode to the lower computer.

7. The life test device according to claim 1, characterized in that: The USB interface of the industrial computer is connected to the RS232 communication interface of the slave computer.

8. The life test device according to claim 1, characterized in that: The lower computer is a programmable logic controller.

9. A life test system, characterized in that: The life test system comprises: a server and the life test device according to any one of claims 1 to 8, wherein the server is in communication connection with the life test device; The life test device is used to upload the test data to a server; The server is used to receive the test data.

10. The life test system according to claim 9, characterized in that: The life test system also includes an industrial camera, which is used to obtain a test video of the life test device and upload the test video to the server.

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