Automatic testing device and method

Abstract

The invention relates to the technical field of automatic testing, in particular to an automatic testing device and method. Comprising a workbench, a to-be-detected workpiece containing assembly, a material taking assembly, a testing assembly, an upper computer and a non-defective workpiece containing assembly. The method and the device have the effects of improving the test efficiency, enhancing the test accuracy and facilitating management and monitoring of the test process. Through cooperative work of all the assemblies, automatic testing and classified storage of workpieces and real-time monitoring and analysis processing of testing data are achieved, manual intervention is greatly reduced, the testing precision and reliability are improved, and powerful support is provided for quality control in the production process.

Description

Technical Field

[0001] The present application relates to the field of automated testing technology, and in particular to an automated testing device and method. Background Art

[0002] Programmable logic controllers (PLCs) occupy a core position in the field of industrial automation and are widely used in various industrial control scenarios. However, the complexity and diversity of PLC software bring many difficulties to its testing work.

[0003] Traditional PLC testing methods mainly rely on manual operation. This method has obvious disadvantages. On the one hand, the efficiency is extremely low, and manual operation requires a lot of time and energy, which is difficult to meet the needs of large-scale production testing; on the other hand, manual operation is prone to errors. Due to factors such as human subjectivity and fatigue, the test results may be inaccurate, which in turn affects the judgment of PLC software quality.

[0004] More importantly, there is a lack of effective automated testing tools on the current market. This makes it difficult to fully test PLC software in important aspects such as functional integrity, structural rationality, and security. If there are vulnerabilities in the software, it will pose a serious threat to the stability and safety of industrial production, and may lead to adverse consequences such as production interruption, equipment damage, and even endangerment of personnel safety.

[0005] Therefore, based on the above problems, the prior art needs to be improved. Summary of the invention

[0006] The purpose of this application is to provide an automated testing device and method to improve the efficiency and accuracy of workpiece testing.

[0007] The above-mentioned technical purpose of the present application is achieved through the following technical scheme: an automated testing device, including a workbench, on which are provided a workpiece holding component for workpieces to be tested, a material picking component, a test component, a host computer and a good workpiece holding component; the material picking component is used to transfer the workpiece on the workpiece holding component for workpieces to be tested to the test component, so that the workpiece and the test component are electrically connected, and the test component and the host computer are electrically connected, and the workpiece is tested by the host computer in cooperation with the test component, and the material picking component transfers the tested workpiece to the workpiece holding component for workpieces to be tested or the good workpiece holding component.

[0008] By adopting the above technical solutions, an automated test process is realized, manual intervention is reduced, and test efficiency is improved. The material picking component can automatically transfer the workpiece to be tested from the holding component to the test component, and then transfer the workpiece to the corresponding position after the test is completed. The whole process does not require a lot of manual operation. The precise coordination between the components, such as the material picking component accurately moving the suction head according to the position information of the workpiece and the suction head, and the test component ensuring that the workpiece is well electrically connected with the test circuit board, plus the host computer accurately analyzing and processing the test signal according to the preset standards and algorithms, all help to improve the accuracy of the test results. Through the collaborative work of the test component and the host computer, multiple performance indicators of the workpiece can be detected, avoiding problems such as software vulnerabilities caused by incomplete testing, thereby ensuring the stability and safety of industrial production. It is conducive to the management and monitoring of the test process. Various test data can be obtained and processed through the host computer, and visualized, which is convenient for operators to understand the test situation in time and make adjustments.

[0009] Optionally, the workpiece holding assembly to be inspected includes a first slide rail, a first slider is provided on the first slide rail, the first slider is connected to a first driving member, and the first driving member drives the first slider to slide on the first slide rail toward or away from the material picking assembly, the first slider is provided with a first holding tray, the first holding tray is provided with a plurality of first holding slots, and the first holding tray is provided with a workpiece holding area to be inspected and a defective workpiece holding area.

[0010] By adopting the above technical solution, the combination of the first slide rail, the first slider and the first driving member enables the workpiece holding component to be inspected to slide flexibly toward or away from the material picking component, which is convenient for the material picking component to accurately obtain the workpiece to be inspected, thereby improving the automation and efficiency of the entire testing process. Several first holding slots are arranged on the first holding tray, which provide a stable placement position for the workpiece to be inspected and prevent the workpiece from being displaced or damaged during movement. At the same time, the workpiece holding area to be inspected and the defective workpiece holding area are divided, so that workpieces in different states can be clearly distinguished and managed during the test, which is convenient for subsequent processing operations. During the test process, once a defective product is found, it can be quickly placed in the defective workpiece holding area to avoid confusion with the workpiece to be inspected, thereby improving the accuracy and reliability of the test and facilitating subsequent quality analysis and improvement.

[0011] Optionally, the material picking assembly includes a mounting frame, a second slide rail is provided on the mounting frame, a second slide rail is provided on the second slide block, the second slide block is connected to a second driving member, and the second slide block is driven by the second driving member to slide on the second slide rail toward or away from the test assembly, a first cylinder is provided on the second slide block, and a pneumatic suction head is provided on the first cylinder, and the pneumatic suction head is driven by the first cylinder to move toward or away from the workbench.

[0012] By adopting the above technical solution, the cooperation between the second slide rail, the second slider and the second driving member on the mounting frame enables the material picking assembly to move accurately toward or away from the test assembly in the horizontal direction, ensuring that the pneumatic suction head can quickly and accurately reach the position of the workpiece to be picked up and the position of the test assembly, greatly improving the efficiency and accuracy of picking and placing materials. The first cylinder on the second slider drives the pneumatic suction head to move in the vertical direction, and can flexibly adjust the distance between the suction head and the workpiece and the workbench to adapt to workpieces of different heights and operating requirements. The design of the pneumatic suction head uses the principle of air pressure, which can quickly and stably absorb and release workpieces, which not only improves the operating speed, but also avoids damage to the workpiece. This structural design makes the material picking assembly highly flexible and accurate, providing a strong guarantee for the efficient operation of the entire automated testing device.

[0013] Optionally, the test assembly includes a receiving part and a pressing part, the receiving part includes a receiving platform arranged on the workbench, the receiving platform is provided with a test circuit board, and the test circuit board is electrically connected to the host computer; the receiving platform is provided with a mounting platform, the mounting platform is recessed with a mounting groove for workpiece installation, the mounting groove is hollowly provided with a plurality of sockets, and the workpiece is electrically connected to the test circuit board through the sockets.

[0014] By adopting the above technical solution, the combination of the receiving part and the pressing part ensures the stability and accuracy of the test process. The test circuit board on the receiving table is electrically connected to the host computer, so that the host computer can accurately control the test process and perform data analysis. The mounting slots on the mounting table and the jacks therein provide an accurate installation position for the workpiece, ensuring that the workpiece can be well electrically connected to the test circuit board and achieve accurate testing of the workpiece. The reliability and stability of the test are improved, and test errors caused by poor connections are avoided. At the same time, the standardized installation method also makes the test process more efficient, and the workpiece can be quickly installed and disassembled, which improves the work efficiency of the entire test device.

[0015] Optionally, the pressing part includes a third slide rail arranged on the workbench, the third slide rail is provided with a third slider, the third slider is connected to a third driving member, and the third driving member drives the third slider to slide on the third slide rail toward or away from the receiving platform, the third slider is provided with a second cylinder, the second cylinder is provided with an upper mold seat, and the upper mold seat is driven by the second cylinder to move toward or away from the mounting platform.

[0016] By adopting the above technical solution, the combination of the third slide rail, the third slider and the third driving member arranged on the workbench enables the pressing part to move accurately in the horizontal direction toward or away from the receiving platform, ensuring that the upper die seat can accurately reach the position of the mounting platform for the pressing operation. The second cylinder on the third slider drives the upper die seat to move in the vertical direction, and can flexibly adjust the pressing force and distance to meet the testing requirements of different workpieces. This structural design improves the accuracy and stability of the pressing operation, ensuring that the workpiece is in close contact with the test circuit board during the test process, thereby ensuring good electrical connection and accurate test results. At the same time, the automated pressing operation improves the test efficiency, reduces the errors and instability that may be caused by manual intervention, and provides strong support for the efficient operation of the entire automated testing device.

[0017] Optionally, the good workpiece holding assembly includes a fourth slide rail, a fourth slider is provided on the fourth slide rail, the fourth slider is connected to a fourth driving member, and the fourth driving member drives the fourth slider to slide on the fourth slide rail toward or away from the material picking assembly, the fourth slider is provided with a second holding tray, and the second holding tray is provided with a plurality of second holding slots.

[0018] By adopting the above technical solution, the cooperation between the fourth slide rail, the fourth slider and the fourth driving member in the good workpiece holding assembly enables the second holding tray to slide flexibly toward or away from the material picking assembly. When the workpiece is detected as a good product, the material picking assembly can accurately place it in the second holding slot of the second holding tray. The precise movement of the fourth slider ensures the accuracy of the placement position and improves the automation and efficiency of the entire testing process. The several second holding slots on the second holding tray provide a stable placement space for good workpieces, which is convenient for the classification, storage and subsequent management of good products. This design can effectively distinguish good products from defective products, avoid confusion, and facilitate quality control and subsequent processes in the production process.

[0019] The second technical purpose of the present application is achieved through the following technical solution: an automated testing method, using an automated testing device as described above, the method steps include: Placing the workpieces to be inspected one by one in the first containing slot of the workpiece containing area to be inspected; The first driving member of the workpiece holding assembly to be inspected drives the first slide block to slide on the first slide rail, so that the first holding tray is close to the material picking assembly; the second driving member of the material picking assembly drives the second slide block to slide on the second slide rail toward the workpiece holding assembly to be inspected, and at the same time, the first cylinder drives the pneumatic suction head to move toward the workbench; the pneumatic suction head sucks the workpiece in the workpiece holding area to be inspected in the first holding tray; The second driving member drives the second slide block to slide on the second slide rail to move the sucked workpiece to the top of the test assembly; the pneumatic suction head places the workpiece in the mounting groove of the mounting table of the receiving member of the test assembly, and the workpiece is electrically connected to the test circuit board through the socket in the mounting groove; The pressing part of the test assembly starts to work, and the third driving part drives the third slider to slide on the third slide rail toward the receiving platform, so that the upper die seat on the second cylinder is close to the mounting platform; the second cylinder drives the upper die seat to move toward the mounting platform until the upper die seat is tightly pressed against the workpiece to ensure good electrical contact and prepare for the test; The host computer starts the test program and detects the workpiece through the test circuit board. During the test, the host computer analyzes and processes the signal fed back by the test circuit board according to the preset test standards and algorithms; the host computer determines whether the workpiece is qualified according to the test results; if the workpiece is qualified, the pneumatic suction head of the material picking component sucks the workpiece from the mounting table of the test component, and the second driving member drives the second slider to slide on the second slide rail to move the workpiece to above the good workpiece holding component, and then the pneumatic suction head places the workpiece in the second holding slot of the second holding tray; if the workpiece is unqualified, the pneumatic suction head sucks the workpiece from the test component, and the second driving member drives the second slider to slide on the second slide rail to move the workpiece to the corresponding position of the defective workpiece holding area of ​​the first holding tray; Repeat the above steps to test all the workpieces to be tested on the first holding tray until all workpieces have been tested; during the test process, if the test result of a workpiece is uncertain or an abnormal situation occurs and needs to be retested, it can be placed back in the workpiece holding area to be tested and tested again according to the above steps.

[0020] By adopting the above technical solutions, the automated testing method relies on the automated testing device to realize the automated operation of the entire process, from the placement, material collection, transfer, testing to classified storage of workpieces, greatly reducing manual intervention and significantly improving the testing efficiency. The accuracy and stability of each operation step are ensured by precise drive and cylinder control. For example, the material collection component can accurately absorb and place the workpiece, and the press-fitting parts of the test component can ensure good electrical contact between the workpiece and the test circuit board, providing a guarantee for accurate testing. The host computer performs signal analysis and processing and result judgment according to preset standards and algorithms, which improves the accuracy and reliability of the test. The automatic classification and storage of qualified and unqualified workpieces facilitates subsequent quality control and processing. At the same time, workpieces with uncertain or abnormal test results can be retested, which ensures the comprehensiveness and rigor of the test and provides strong support for quality control in industrial production.

[0021] Optionally, the steps after placing the workpieces to be inspected one by one in the first containing slot of the workpiece containing area to be inspected include: Obtaining workpiece position information of a plurality of workpieces to be inspected in a workpiece storage area to be inspected; Obtaining the suction head position information of the pneumatic suction head in the material picking component; According to the acquired workpiece position information and suction head position information, calculate the distance and direction that the pneumatic suction head needs to move in the X direction, and calculate the distance and direction that the first holding tray needs to move in the Y direction; Sending control instructions to the first driving member and the second driving member to make the pneumatic suction head initially align with the position of the workpiece; Obtain physical feature information of the workpiece; Based on the physical characteristic information, dynamically adjusting the suction force and suction mode of the pneumatic suction head through the first cylinder; Send a control command to the first cylinder, so that the first cylinder drives the pneumatic suction head to descend in the Z direction and approach the surface of the workpiece; Obtain the suction signal of the pneumatic suction head successfully sucking the workpiece, and obtain the precise position information of the mounting table in the test assembly; According to the current position of the pneumatic suction head and the precise position information of the mounting platform, the precise distance and direction that the pneumatic suction head needs to move in the XZ direction are calculated; The moving path is optimized according to a preset algorithm, and precise control instructions are sent to the second driving member and the first cylinder to drive the pneumatic suction head to move the suction head in the X and Z directions according to the optimized moving path, so as to accurately move the workpiece onto the test component; A control command is sent to the first cylinder to drive the pneumatic suction head to descend in the Z direction and place the workpiece in the mounting slot of the mounting table of the test component; at the same time, the descending speed and final position of the pneumatic suction head are dynamically adjusted according to the position feedback during the placement process to ensure that the workpiece is accurately placed and has a good electrical connection with the test circuit board.

[0022] By adopting the above technical solution, by accurately acquiring the workpiece position information and the suction head position information, the moving distance and direction in each direction can be accurately calculated, and the precise positioning of the material picking component can be achieved. The suction force and method are dynamically adjusted based on the physical feature information to ensure that the pneumatic suction head can stably and reliably suck the workpiece, avoiding damage to the workpiece or suction failure due to improper force. The moving path is further optimized according to the precise position information of the mounting table, which improves the accuracy and efficiency of the workpiece transfer, ensures that the workpiece can be accurately placed in the mounting slot of the test component and has a good electrical connection with the test circuit board, and lays a solid foundation for subsequent accurate testing. At the same time, the descent speed and final position are dynamically adjusted according to the position feedback, which enhances the flexibility and adaptability of the entire process and improves the automation and reliability of the test device.

[0023] Optionally, the steps after placing the workpiece in the mounting groove of the mounting table of the test assembly include: Obtain the placement information of the workpiece after the pneumatic suction head places the workpiece, as well as the electrical connection feedback information of the test circuit board, and obtain the relevant information of the receiving slot; Compare the placement position information with the relevant information of the receiving slot to determine whether the workpiece is in the correct position; analyze the electrical connection feedback to determine whether the workpiece and the test circuit board are connected normally; If the workpiece is in the correct position and the workpiece is normally connected to the test circuit board, a working signal is confirmed to the output part of the press-fit part; If the workpiece is not in the correct position, the workpiece position deviation is calculated, and an instruction to adjust the start suction head position is output to the material picking component, so that the suction head readjusts the workpiece position, and then determines again whether the workpiece is in the correct position; If the workpiece is not connected properly to the test circuit board, an instruction to check the circuit connection or to prompt the operator to check the placement of the workpiece is output, and then the electrical connection feedback information is re-obtained for judgment; When the pressing part receives the confirmation work signal, the pressing part performs a pressing operation on the workpiece, so that the upper die base and the workpiece are tightly pressed together, and sends a start test signal.

[0024] By adopting the above technical solution, by obtaining the workpiece placement position information, electrical connection feedback information and receiving slot related information, the placement status and electrical connection status of the workpiece can be accurately judged. When the workpiece is in the correct position and the electrical connection is normal, a confirmation signal can be sent to the press-fit part in time to ensure the smooth progress of the test process. If the workpiece position is incorrect or the electrical connection is abnormal, corresponding measures can be taken quickly, such as calculating the position deviation and adjusting the suction head position or prompting to check the circuit connection, which improves the accuracy and reliability of the test. This automatic detection and adjustment mechanism greatly reduces test errors caused by improper workpiece placement or connection problems, improves test efficiency and quality, and also reduces the need for manual intervention, enhancing the stability and practicality of the automated testing device.

[0025] Optionally, the method further includes: Get relevant parameters of the test process; Build a visual model of the test process to display the test standards and corresponding algorithms in a visual form; A visual interface showing the test process, including test steps and related parameters; Obtain real-time data during the host computer's workpiece testing process, including changes in test signals and values ​​of test parameters; Obtain the judgment information made by the host computer based on the test results; Perform data analysis and processing based on the acquired test data to obtain analysis results; Based on the analysis results, a visual interface of the test data is displayed, including test data curves, parameter statistics charts, and test result judgment information; Obtaining processing operation information of the material picking component on the workpiece, including position information of moving qualified workpieces to the good workpiece holding component, and position information of moving unqualified workpieces to the bad workpiece holding area; A visual interface that displays the workpiece processing results, including the placement information of qualified and unqualified workpieces.

[0026] By adopting the above technical solution, the relevant parameters of the test process are obtained and a visual model is constructed, which can display the test standards and algorithms as well as the test steps and related parameters in an intuitive way, making it easier for operators to understand and monitor the test process, and improving the transparency and operability of the test. The test data and judgment information of the host computer are obtained in real time, and the test data curves and parameter statistical charts are displayed in a visual interface after data analysis and processing, which helps to timely discover problems and trends in the test and provide a basis for optimizing the test process and product quality. At the same time, the processing operation information of the material picking component on the workpiece and the visual interface that displays the workpiece processing results can clearly understand the whereabouts of qualified and unqualified workpieces, facilitate subsequent quality control and production management, and improve the efficiency and reliability of the entire automated testing system.

[0027] In summary, this application has at least the following beneficial effects: 1. The fully automated testing process, from the placement, transfer, testing and classification of workpieces, greatly reduces manual intervention. The precise coordination and efficient operation of various components significantly improve the testing efficiency and can quickly process a large number of workpieces to be tested.

[0028] 2. The accuracy of the test process is ensured by accurately acquiring position information, dynamically adjusting the suction force and method, optimizing the moving path, and strictly detecting and adjusting the workpiece position and electrical connection. The upper computer performs analysis and processing according to preset standards and algorithms, which further improves the reliability of the test results.

[0029] 3. Build a visual model of the test process to display the test standards, algorithms, steps and parameters, as well as a visual interface for real-time data and processing results, making the test process more intuitive and convenient for operators to monitor and manage, while also providing strong support for test optimization and quality control. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a structural schematic diagram of an automated testing device; Figure 2 It is a structural schematic diagram of a component for holding a workpiece to be inspected; Figure 3 It is a schematic diagram of the structure of the material taking component; Figure 4 It is a schematic diagram of the structure of the test component; Figure 5 It is a schematic diagram of the structure of the good workpiece holding component.

[0031] Reference numerals 1. Workbench; 2. Component for holding workpieces to be tested; 21. First slide rail; 22. First slider; 23. First driving member; 24. First holding tray; 3. Material picking component; 31. Mounting frame; 32. Second slide rail; 33. Second slider; 34. Second driving member; 35. First cylinder; 36. Pneumatic suction head; 4. Test component; 41. Receiver; 411. Receiver table; 412. Test circuit board; 413. Mounting table; 42. Pressing member; 421. Third slide rail; 422. Third slider; 424. Second cylinder; 425. Upper die seat; 5. Upper computer; 6. Component for holding workpieces to be tested; 61. Fourth slide rail; 62. Fourth slider; 63. Fourth driving member; 64. Second holding tray; 7. First holding slot; 8. Mounting slot; 9. Socket; 10. Second holding slot. DETAILED DESCRIPTION

[0032] The present application is further described in detail below in conjunction with the accompanying drawings.

[0033] In this embodiment, refer to Figure 1 An automated testing device includes a workbench 1 on which are arranged a workpiece holding component 2, a material picking component 3, a testing component 4, a host computer 5 and a good workpiece holding component 6.

[0034] Reference Figure 2 The workpiece holding assembly 2 to be tested mainly consists of a first slide rail 21, a first slider 22, a first driving member 23 and a first holding tray 24. The first slide rail 21 is installed on the workbench 1 to provide a stable track for the movement of the first slider 22. Its length and installation position are carefully designed to ensure that the first holding tray 24 can slide in a suitable range to approach or move away from the material taking assembly 3. The first slider 22 cooperates with the first slide rail 21 and moves accurately along the first slide rail 21 under the action of the first driving member 23. The first driving member 23 can be a power device such as a motor or a cylinder, which can accurately control the moving speed and direction of the first slider 22. By connecting with the control system, the position of the first holding tray 24 can be adjusted in real time according to the needs of the test process. A plurality of first holding slots 7 are provided on the first holding tray 24. The size and shape of the first holding slots 7 are designed according to the characteristics of the workpiece to be tested, and can tightly accommodate the workpiece to prevent the workpiece from shaking or displacement during movement. The inner wall of the holding slot can be made of soft material or special coating to avoid scratching the workpiece. The first tray 24 is clearly divided into a storage area for workpieces to be tested and a storage area for defective workpieces, so that workpieces in different states can be conveniently classified and managed during the test process. The storage area for workpieces to be tested can be distinguished by specific colors or logos, so that operators or machines can quickly identify and place the workpieces to be tested. The storage area for defective workpieces is used to store workpieces that fail the test to avoid confusion with the workpieces to be tested.

[0035] Reference Figure 3The material picking assembly 3 is mainly composed of a mounting frame 31, a second slide rail 32, a second slider 33, a second driving member 34, a first cylinder 35 and a pneumatic suction head 36. The mounting frame 31 provides a stable support structure for the material picking assembly 3 and is installed at a suitable position on the workbench 1 to ensure that the material picking assembly 3 can operate efficiently between the workpiece holding assembly 2 to be tested and the test assembly 4. The second slide rail 32 is installed on the mounting frame 31 to provide a precise track for the movement of the second slider 33. The slide rail can adopt a high-precision linear guide to ensure that the second slider 33 is not stuck or shaken during the sliding process. The second slider 33 cooperates with the second slide rail 32 and slides along the second slide rail 32 towards or away from the test assembly 4 under the action of the second driving member 34. The structural design of the slider is reasonable, which can be closely matched with the second slide rail 32, and can also be easily installed and connected with other components. The second driving member 34 can be a motor, a cylinder or other power device, which is responsible for driving the second slider 33 to move accurately on the second slide rail 32. The second driving member 34 is precisely controlled by the control system, and the moving speed and position of the slider can be adjusted according to different material collection requirements. The selection and parameter setting of the second driving member 34 need to consider the speed, accuracy and load requirements of the material collection. The first cylinder 35 is installed on the second slider 33, and is used to drive the pneumatic suction head 36 to move closer to or away from the workbench 1. The stroke and force of the first cylinder 35 can be adjusted according to the size and weight of the workpiece to ensure that the pneumatic suction head 36 can stably absorb and release the workpiece. The control of the first cylinder 35 can be achieved through pneumatic components such as solenoid valves, which are connected to the control system to achieve automatic operation. The pneumatic suction head 36 is a key component of the material collection component 3, and the workpiece is absorbed and released by the air pressure principle. The shape and size of the suction head are designed according to the characteristics of the workpiece to ensure that the workpiece can be firmly adsorbed. The suction head is usually made of soft material to avoid damage to the surface of the workpiece. The pneumatic suction head 36 is connected to the air source through an air pipe, and the pressure and flow of the air source can be controlled by a regulating valve to adapt to different workpiece suction requirements.

[0036] Preferably, a positioning camera is provided on the first cylinder 35 of the material picking assembly 3 to provide more accurate detection and control for the material picking and discharging process. The positioning camera is installed on the first cylinder 35, and the position is carefully designed to ensure that the contact area between the pneumatic suction head 36 and the workpiece can be clearly photographed. The camera can adopt a high-resolution industrial camera with fast image acquisition and processing capabilities. The camera is connected to the control system via a data cable, and the real-time captured image is transmitted to the control system for analysis and processing. The control system analyzes and processes the received image, and determines whether the pneumatic suction head 36 accurately picks up the workpiece or places the workpiece in the corresponding position through a specific image recognition algorithm. For example, the position of the workpiece under the pneumatic suction head 36 can be determined by identifying the edge contour, feature points and other information of the workpiece. If a position deviation is found, the control system can adjust the action of the first cylinder 35 and the second drive member 34 in time to perform position correction. When picking up the workpiece, when the pneumatic suction head 36 approaches the workpiece in the workpiece holding area to be detected, the positioning camera starts to work and photographs the contact area between the pneumatic suction head 36 and the workpiece. The control system determines whether the pneumatic suction head 36 is accurately aligned with the workpiece based on the image captured by the camera. If a position deviation is found, the control system will adjust the action of the second drive member 34 and the first cylinder 35 so that the pneumatic suction head 36 can accurately absorb the workpiece. When placing the workpiece: When the pneumatic suction head 36 moves the workpiece to the top of the test component 4 or the good / bad workpiece storage area, the alignment camera takes another photo to ensure that the workpiece can be accurately placed in the corresponding position. If the position is found to be inaccurate, the control system will perform position correction to ensure the accuracy of the workpiece placement.

[0037] Reference Figure 4, the test assembly 4 is composed of a receiving part 41 and a pressing part 42. The receiving part 41 is mainly composed of a receiving platform 411, a test circuit board 412, and a mounting platform 413. The receiving platform 411 is firmly mounted on the workbench 1, and its position is accurately measured and adjusted to ensure that the coordinated work with the material taking component 3 and the pressing part 42 is accurate. Preferably, there are multiple receiving platforms 411 on the workbench 1. The material of the receiving platform 411 has good stability and insulation, and can provide stable support for the test circuit board 412 while avoiding interference with the test signal. The surface of the receiving platform 411 is specially treated and smooth to ensure the levelness and stability of the test circuit board 412 after installation. The test circuit board 412 is electrically connected to the host computer 5, receives the control signal of the host computer 5 and sends test data. Various test circuits and sensors are integrated on the test circuit board 412, which can test the electrical performance, function and other aspects of the workpiece. The design of the test circuit board 412 is customized according to different types of workpieces to ensure that it can meet various test requirements. The components on the circuit board are high-quality, high-reliability products to ensure the accuracy and stability of the test. The mounting platform 413 is set on the receiving platform 411, and its shape and size are designed according to the characteristics of the workpiece. The mounting platform 413 is recessed with a mounting groove 8, and the depth and size of the mounting groove 8 can tightly accommodate the workpiece to ensure that the workpiece will not be displaced during the test. The several sockets 9 in the mounting groove 8 are the key parts to achieve electrical connection between the workpiece and the test circuit board 412. The position and size of the socket 9 are precisely designed to match the electrodes or interfaces on the workpiece. The elastic contact structure is adopted inside the socket 9, which can ensure good contact with the workpiece while avoiding damage to the workpiece.

[0038] Reference Figure 5The good workpiece holding assembly 6 is mainly composed of a fourth slide rail 61, a fourth slider 62, a fourth driving member 63 and a second holding tray 64. The fourth slide rail 61 is installed on the workbench 1 to provide a stable track for the movement of the fourth slider 62. The length and installation position of the slide rail are carefully designed to ensure that the second holding tray 64 can slide in a suitable range to approach or move away from the material taking assembly 3. The fourth slider 62 cooperates with the fourth slide rail 61 and moves accurately along the fourth slide rail 61 under the action of the fourth driving member 63. The fourth driving member 63 can be a power device such as a motor or a cylinder, which can accurately control the moving speed and direction of the fourth slider 62. By connecting with the control system, the position of the second holding tray 64 can be adjusted in real time according to the needs of the test process. A plurality of second holding slots 10 are provided on the second holding tray 64. The size and shape of the second holding slots 10 are designed according to the characteristics of the good workpieces, and can tightly accommodate the workpieces to prevent the workpieces from shaking or displacement during movement. The inner wall of the holding slot can be made of soft material or special coating to avoid scratching the workpiece. The clear functional positioning enables qualified workpieces to be accurately placed on the second holding tray 64 during the test process and stored separately from defective workpieces, which is convenient for subsequent processing and management.

[0039] The implementation principle of this embodiment is as follows: the automated testing device uses the workbench 1 as a basic platform, and various functional components cooperate with each other to realize an automated testing process for a workpiece.

[0040] The workpiece holding assembly 2 to be inspected is used to store the workpieces to be inspected. The first driving member 23 drives the first slide block 22 to slide on the first slide rail 21, so that the workpieces to be inspected can be moved to a position close to the material picking assembly 3, which is convenient for the material picking assembly 3 to perform the material picking operation. The first holding tray 24 on the assembly divides the holding area for the workpieces to be inspected and the holding area for the defective workpieces, providing a basis for the classification management of the workpieces.

[0041] The material picking assembly 3 is mainly responsible for taking the workpiece to be tested from the workpiece holding assembly 2 to be tested and transferring it to the test assembly 4. The second slide rail 32 and the second slider 33 on the mounting frame 31 realize horizontal movement under the action of the second driving member 34, while the first cylinder 35 on the second slider 33 drives the pneumatic suction head 36 to move in the vertical direction, and through precise position control, ensure that the pneumatic suction head 36 can accurately suck and place the workpiece.

[0042] The test assembly 4 is the core part for testing the workpiece. The test circuit board 412 on the receiving member 41 is electrically connected to the host computer 5, receives the control signal of the host computer 5 and feeds back the test data to the host computer 5. The workpiece is placed in the mounting groove 8 of the mounting table 413 on the receiving table 411, and is electrically connected to the test circuit board 412 through the jack 9. The pressing member 42 ensures that the workpiece is in close contact with the test circuit board 412 during the test process through the coordinated action of the third slide rail 421, the third slider 422, the third driving member, the second cylinder 424 and the upper die seat 425, thereby ensuring the accuracy of the test.

[0043] The host computer 5 is the control center of the entire test device, responsible for starting the test program, receiving the signal fed back by the test circuit board 412, analyzing and processing according to the preset test standards and algorithms, and judging whether the workpiece is qualified. The host computer 5 can also monitor and manage the test process and display the test data and results through a visual interface.

[0044] The qualified workpiece holding assembly 6 is used to store qualified workpieces. The cooperation of the fourth slide rail 61, the fourth slider 62 and the fourth driving member 63 enables the second holding tray 64 to move to a position close to the material taking assembly 3 so as to receive qualified workpieces. The plurality of second holding slots 10 on the second holding tray 64 provide a stable storage space for qualified workpieces.

[0045] Before the test begins, the workpiece to be tested is placed in the first holding slot 7 of the workpiece holding area of ​​the first holding tray 24 of the workpiece holding assembly 2. At this time, the host computer 5 can obtain the number and position information of the workpiece to be tested through sensors or other means to prepare for the subsequent test process.

[0046] When the test starts, the host computer 5 sends a control signal to the first driving member 23 of the workpiece holding assembly 2 to be tested, drives the first slider 22 to slide on the first slide rail 21, and makes the first holding tray 24 close to the material picking assembly 3. At the same time, the host computer 5 sends a control signal to the second driving member 34 and the first cylinder 35 of the material picking assembly 3, so that the pneumatic suction head 36 sucks the workpiece to be tested and transfers it to the top of the test assembly 4. After the material picking assembly 3 places the workpiece in the mounting groove 8 of the mounting table 413 of the test assembly 4, the host computer 5 sends a control signal to the pressing member 42 of the test assembly 4, so that the upper die seat 425 is tightly pressed with the workpiece to prepare for the test. Then, the host computer 5 starts the test program and detects the workpiece through the test circuit board 412. During the test, the test circuit board 412 feeds back the test data to the host computer 5, and the host computer 5 analyzes and processes according to the preset algorithm. After the test is completed, the host computer 5 determines whether the workpiece is qualified according to the test results. If the workpiece is qualified, the host computer 5 sends a control signal to the material picking component 3, so that the pneumatic suction head 36 transfers the workpiece to the top of the good workpiece holding component 6 and places it in the second holding slot 10 of the second holding tray 64. If the workpiece is unqualified, the pneumatic suction head 36 transfers the workpiece to the corresponding position of the defective workpiece holding area of ​​the first holding tray 24. Repeat the above steps to test all the workpieces to be tested until the test is completed. During the test process, if there is an abnormal situation or a workpiece that needs to be retested, it can be recorded and managed by the host computer 5, and it can be re-placed in the workpiece holding area to be tested, and tested again according to the above process.

[0047] An automated testing method, using an automated testing device as described above, the method steps include: S1: placing the workpieces to be inspected one by one in the first containing slot 7 of the workpiece containing area to be inspected; S2: The first driving member 23 of the workpiece holding assembly 2 to be inspected drives the first slide block 22 to slide on the first slide rail 21, so that the first holding tray 24 is close to the material picking assembly 3; the second driving member 34 of the material picking assembly 3 drives the second slide block 33 to slide on the second slide rail 32 towards the workpiece holding assembly 2 to be inspected, and at the same time, the first cylinder 35 drives the pneumatic suction head 36 to move towards the workbench 1; the pneumatic suction head 36 sucks the workpiece in the workpiece holding area to be inspected in the first holding tray 24; S3: The second driving member 34 drives the second slide block 33 to slide on the second slide rail 32, and moves the sucked workpiece to the top of the test assembly 4; the pneumatic suction head 36 places the workpiece in the mounting groove 8 of the mounting table 413 of the receiving member 41 of the test assembly 4, and the workpiece is electrically connected to the test circuit board 412 through the socket 9 in the mounting groove 8; S4: The pressing member 42 of the test assembly 4 starts to work, and the third driving member drives the third slider 422 to slide on the third slide rail 421 toward the receiving platform 411, so that the upper die seat 425 on the second cylinder 424 is close to the mounting platform 413; the second cylinder 424 drives the upper die seat 425 to move toward the mounting platform 413 until the upper die seat 425 is tightly pressed against the workpiece to ensure good electrical contact, and prepare for the test; S5: The host computer 5 starts the test program and detects the workpiece through the test circuit board 412. During the test, the host computer 5 analyzes and processes the signal fed back by the test circuit board 412 according to the preset test standards and algorithms; the host computer 5 determines whether the workpiece is qualified according to the test results; if the workpiece is qualified, the pneumatic suction head 36 of the material picking component 3 sucks the workpiece from the mounting table 413 of the test component 4, and the second driving member 34 drives the second slider 33 to slide on the second slide rail 32 to move the workpiece to above the good workpiece holding component 6, and then the pneumatic suction head 36 places the workpiece in the second holding slot 10 of the second holding tray 64; if the workpiece is unqualified, the pneumatic suction head 36 sucks the workpiece from the test component 4, and the second driving member 34 drives the second slider 33 to slide on the second slide rail 32 to move the workpiece to the corresponding position of the defective workpiece holding area of ​​the first holding tray 24; S6: Repeat the above steps to test all the workpieces to be inspected on the first holding tray 24 until all the workpieces have been inspected; during the test process, if the test result of a workpiece is uncertain or an abnormal situation occurs and needs to be retested, it can be placed back in the workpiece holding area to be inspected and tested again according to the above steps.

[0048] The workpieces to be tested are carefully placed one by one in the first holding slot 7 of the workpiece holding area to be tested. This ensures that the workpieces are placed stably and will not tip over or shift during the subsequent movement process. At the same time, a preliminary inspection of the workpieces can be performed to exclude workpieces with obvious defects, thereby improving the test efficiency.

[0049] The first driving member 23 of the workpiece holding assembly 2 to be inspected starts to work, and accurately drives the first slider 22 to slide on the first slide rail 21. The moving speed and distance of the first slider 22 are accurately calculated, so that the first holding tray 24 can smoothly approach the material picking assembly 3 and reach a suitable position for the material picking assembly 3 to operate. The second driving member 34 of the material picking assembly 3 drives the second slider 33 to slide on the second slide rail 32 in the direction of approaching the workpiece holding assembly 2 to be inspected. At the same time, the first cylinder 35 is started to drive the pneumatic suction head 36 to move in the direction of approaching the workbench 1. This process requires the coordination of various components to ensure that the pneumatic suction head 36 can accurately reach the position of the workpiece to be inspected. The pneumatic suction head 36 uses the principle of air pressure to absorb the workpiece in the workpiece holding area to be inspected in the first holding tray 24. During the suction process, the suction force of the suction head should be adjusted according to factors such as the material, weight and shape of the workpiece to ensure that the workpiece can be firmly sucked without causing damage to the workpiece.

[0050] The second driving member 34 continues to drive the second slider 33 to slide on the second slide rail 32, and moves the sucked workpiece to the top of the test assembly 4. This process requires precise position control to ensure that the workpiece can be accurately located above the receiving member 41 of the test assembly 4. The pneumatic suction head 36 places the workpiece in the mounting groove 8 of the mounting table 413 of the receiving member 41 of the test assembly 4. During the placement process, it is necessary to ensure that the position of the workpiece and the mounting groove 8 are accurately matched, and the workpiece and the test circuit board 412 are well electrically connected through the socket 9 in the mounting groove 8. The state of the electrical connection can be monitored in real time by a sensor or other detection device to ensure a reliable connection.

[0051] The pressing member 42 of the test assembly 4 starts to work. The third driving member drives the third slider 422 to slide on the third slide rail 421 toward the receiving platform 411, so that the upper die seat 425 on the second cylinder 424 is close to the mounting platform 413. This process requires precise control to ensure that the upper die seat 425 can accurately reach the appropriate position above the mounting platform 413. The second cylinder 424 drives the upper die seat 425 to move toward the mounting platform 413 until the upper die seat 425 is tightly pressed against the workpiece. During the pressing process, the pressing force should be adjusted according to the characteristics of the workpiece and the test requirements to ensure good electrical contact without causing excessive pressure damage to the workpiece.

[0052] The host computer 5 starts the test program and detects the workpiece through the test circuit board 412. During the test, the test circuit board 412 will collect various parameters and signals of the workpiece in real time, and feed back these data to the host computer 5. The host computer 5 analyzes and processes the signals fed back by the test circuit board 412 according to the preset test standards and algorithms. This process requires powerful computing power and intelligent algorithms to quickly and accurately determine whether the performance and quality of the workpiece meet the requirements. The host computer 5 determines whether the workpiece is qualified based on the test results. If the various parameters of the workpiece are within the preset qualified range, it is judged to be qualified; if any parameter exceeds the qualified range, it is judged to be unqualified.

[0053] If the workpiece is qualified, the pneumatic suction head 36 of the material picking component 3 sucks the workpiece from the mounting table 413 of the test component 4. The second driving member 34 drives the second slider 33 to slide on the second slide rail 32 to move the workpiece to the top of the good workpiece holding component 6. Then, the pneumatic suction head 36 places the workpiece in the second holding slot 10 of the second holding tray 64. During the placement process, it is necessary to ensure that the workpiece is placed stably and will not fall or shift during the subsequent movement. If the workpiece is unqualified, the pneumatic suction head 36 sucks the workpiece from the test component 4. The second driving member 34 drives the second slider 33 to slide on the second slide rail 32 to move the workpiece to the corresponding position of the defective workpiece holding area of ​​the first holding tray 24. In this way, good products and defective products can be stored separately, which is convenient for subsequent processing and management.

[0054] Repeat the above steps to test all the workpieces to be tested on the first holding tray 24 until all the workpieces have been tested. During the test process, the accuracy and stability of each step must be ensured to avoid errors or failures. If the test result of a workpiece is uncertain or an abnormality occurs and needs to be retested, it can be placed back in the workpiece holding area to be tested. Then, test again according to the above steps to ensure that each workpiece can obtain accurate test results.

[0055] During the entire test process, the test process, test data and results can be monitored in real time through the visual interface of the host computer 5. The operator can understand the progress of the test at any time, find problems in time and deal with them. Recording and analyzing the test data can provide a basis for subsequent production and quality improvement. At the same time, statistics on the number and proportion of good and defective products are helpful to evaluate the quality level of the production process and adjust the production process and parameters in time.

[0056] Specifically, in some possible embodiments, the steps after placing the workpieces to be inspected one by one in the first containing groove 7 of the workpiece containing area to be inspected include: Obtaining workpiece position information of a plurality of workpieces to be inspected in a workpiece storage area to be inspected; Obtaining the suction head position information of the pneumatic suction head 36 in the material picking component 3; According to the acquired workpiece position information and suction head position information, the distance and direction that the pneumatic suction head 36 needs to move in the X direction are calculated, and the distance and direction that the first holding tray 24 needs to move in the Y direction are calculated; Sending control instructions to the first driving member 23 and the second driving member 34 to make the pneumatic suction head 36 initially align with the position of the workpiece; Obtain physical feature information of the workpiece; Based on the physical characteristic information, the suction force and suction mode of the pneumatic suction head 36 are dynamically adjusted by the first cylinder 35; Send a control command to the first cylinder 35 so that the first cylinder 35 drives the pneumatic suction head 36 to descend in the Z direction and approach the surface of the workpiece; Obtaining a suction signal indicating that the pneumatic suction head 36 successfully sucks the workpiece, and obtaining accurate position information of the mounting table 413 in the test assembly 4; According to the current position of the pneumatic suction head 36 and the precise position information of the mounting platform 413, the precise distance and direction that the pneumatic suction head 36 needs to move in the XZ direction are calculated; The moving path is optimized according to a preset algorithm, and precise control instructions are sent to the second driving member 34 and the first cylinder 35 to drive the pneumatic suction head 36 to move the suction head in the X and Z directions according to the optimized moving path, so as to accurately move the workpiece to the top of the test assembly 4; A control command is sent to the first cylinder 35 to drive the pneumatic suction head 36 to descend in the Z direction to place the workpiece in the mounting groove 8 of the mounting table 413 of the test assembly 4; at the same time, according to the position feedback during the placement process, the descending speed and final position of the pneumatic suction head 36 are dynamically adjusted to ensure that the workpiece is accurately placed and has a good electrical connection with the test circuit board 412.

[0057] Among them, the workpiece position information of several workpieces to be detected in the workpiece holding area to be detected is accurately obtained by installing sensors (such as photoelectric sensors, position encoders, etc.) in the workpiece holding area to be detected. These sensors can monitor the position changes of the workpieces in real time and transmit the position data to the control system. At the same time, the position detection device (such as encoder, laser rangefinder, etc.) installed on the material picking component 3 is used to obtain the suction head position information of the pneumatic suction head 36. These devices can accurately measure the position coordinates of the suction head in space and feed the data back to the control system.

[0058] The control system uses mathematical algorithms to calculate the distance and direction that the pneumatic suction head 36 needs to move in the X direction, and the distance and direction that the first holding tray 24 needs to move in the Y direction, based on the acquired workpiece position information and suction head position information. For example, vector operations, coordinate transformations, and other methods can be used to determine the relative position relationship between the two objects, thereby calculating the movement parameters. Various factors, such as mechanical errors, sensor accuracy, workpiece shape and size, etc., must be considered during the calculation process to ensure the accuracy of the calculation results.

[0059] The control system sends control instructions to the first drive member 23 and the second drive member 34 to make the pneumatic suction head 36 initially align with the position of the workpiece. These instructions can be electrical signals, digital signals or analog signals, and the specific form depends on the type of drive member and the interface of the control system. The control instructions must be sent in a timely and accurate manner to ensure that the drive member can respond quickly and perform the corresponding action. At the same time, the response time and movement speed of the drive member must be taken into account to avoid excessive adjustment or delay.

[0060] The physical characteristic information of the workpiece, such as weight, size, shape, material, etc., is obtained through sensors or other detection devices. This information can help the control system determine the appropriate suction force and suction method to ensure that the pneumatic suction head 36 can firmly suck the workpiece without causing damage to the workpiece. The physical characteristic information can be obtained by various methods, such as weighing sensors, visual inspection systems, material analyzers, etc. These devices can provide accurate physical characteristic data and provide a basis for subsequent suction operations.

[0061] Based on the acquired physical characteristic information, the control system dynamically adjusts the suction force and suction method of the pneumatic suction head 36 through the first cylinder 35. For example, if the workpiece is heavy, the suction force can be increased; if the surface of the workpiece is relatively smooth, negative pressure suction can be used; if the shape of the workpiece is irregular, the shape and position of the suction head can be adjusted to ensure the stability of suction. During the dynamic adjustment process, the suction effect should be monitored in real time and adjusted according to the actual situation. The pressure, flow rate and other parameters during the suction process can be monitored by pressure sensors, flow sensors and other equipment to determine whether the suction is firm. If the suction is found to be unstable or abnormal, the suction force and method should be adjusted in time to ensure the reliability of the suction.

[0062] The control system sends a control command to the first cylinder 35, so that the first cylinder 35 drives the pneumatic suction head 36 to descend in the Z direction and approach the surface of the workpiece. The descent speed should be moderate to avoid impacting the workpiece or affecting the suction effect by being too fast or too slow. During the descent process, the distance between the suction head and the workpiece can be monitored in real time through a proximity sensor or a visual detection system to ensure that the suction head can accurately approach the workpiece surface. When the suction head approaches the workpiece surface, the control system can adjust the descent speed according to the actual situation so that the suction head slowly contacts the workpiece to avoid excessive impact force.

[0063] When the pneumatic suction head 36 successfully absorbs the workpiece, the sensor will detect the suction signal and transmit the signal to the control system. The control system can determine whether the suction is firm through pressure sensors, flow sensors and other equipment. If the suction is successful, the control system will record the suction signal and proceed to the next step. At the same time, the precise position information of the mounting table 413 in the test component 4 is obtained. The position coordinates of the mounting table 413 in space can be accurately measured by laser rangefinders, visual inspection systems and other equipment. This information will be used to calculate the precise distance and direction that the pneumatic suction head 36 needs to move in the XZ direction.

[0064] According to the current position of the pneumatic suction head 36 and the precise position information of the mounting platform 413, the control system again uses a mathematical algorithm to calculate the precise distance and direction that the pneumatic suction head 36 needs to move in the XZ direction. This calculation process must take into account the influence of various factors, such as mechanical errors, sensor accuracy, workpiece shape and size, etc., to ensure the accuracy of the calculation results. After calculating the precise moving distance and direction, the control system can optimize the moving path according to a preset algorithm. For example, the shortest path algorithm, obstacle avoidance algorithm, etc. can be used to ensure that the pneumatic suction head 36 can be quickly and accurately moved to the top of the test component 4 while avoiding collisions with other objects.

[0065] The control system sends precise control instructions to the second drive member 34 and the first cylinder 35 to drive the pneumatic suction head 36 to move the suction head in the X and Z directions according to the optimized moving path, and accurately move the workpiece to the top of the test component 4. These instructions must be accurate and timely to ensure that the pneumatic suction head 36 can move along the predetermined path to avoid deviations or errors. During the movement process, the control system must monitor the position and movement state of the pneumatic suction head 36 in real time and adjust it according to actual conditions. The position and movement speed of the suction head can be monitored by position sensors, speed sensors and other equipment to determine whether it moves along the predetermined path. If deviations or abnormalities are found, the control instructions must be adjusted in time to ensure that the suction head can accurately reach the top of the test component 4.

[0066] When the pneumatic suction head 36 reaches the top of the test assembly 4, the control system sends a control command to the first cylinder 35 to drive the pneumatic suction head 36 to descend in the Z direction and place the workpiece in the mounting groove 8 of the mounting table 413 of the test assembly 4. The descent speed should be moderate to avoid damage to the workpiece or the mounting table 413 due to excessive speed or slowness. During the placement process, the control system should dynamically adjust the descent speed and final position of the pneumatic suction head 36 based on position feedback. The distance and pressure between the suction head and the mounting table 413 can be monitored in real time through position sensors, pressure sensors and other equipment, and the descent speed and final position can be adjusted according to actual conditions to ensure that the workpiece can be accurately placed and has a good electrical connection with the test circuit board 412.

[0067] After the workpiece is placed in the mounting slot 8, the control system detects the electrical connection status between the workpiece and the test circuit board 412 through sensors or other detection devices. If the electrical connection is poor, the control system can improve the electrical connection by adjusting the position, pressure and other parameters of the pneumatic suction head 36. After ensuring that the workpiece is well electrically connected to the test circuit board 412, the control system can proceed to the next step, such as starting the test program, sending a test signal, etc. At the same time, the placement position and electrical connection status of the workpiece should be recorded for subsequent query and analysis.

[0068] Specifically, in some possible embodiments, the steps after placing the workpiece in the mounting groove 8 of the mounting table 413 of the test assembly 4 include: Obtaining the placement position information of the workpiece after the pneumatic suction head 36 places the workpiece, as well as the electrical connection feedback information of the test circuit board 412, and obtaining the relevant information of the receiving groove; Compare the placement position information with the relevant information of the receiving slot to determine whether the workpiece is in the correct position; analyze the electrical connection feedback to determine whether the workpiece and the test circuit board 412 are normally connected; If the workpiece is in the correct position and the workpiece is normally connected to the test circuit board 412, a work confirmation signal is output to the pressing part 42; If the workpiece is not in the correct position, the workpiece position deviation is calculated, and an instruction to adjust the start suction head position is output to the material picking component 3, so that the suction head readjusts the workpiece position, and then determines again whether the workpiece is in the correct position; If the workpiece is not connected properly to the test circuit board 412, an instruction to check the circuit connection or to prompt the operator to check the placement of the workpiece is output, and then the electrical connection feedback information is re-acquired for judgment; When the pressing part 42 receives the confirmation work signal, the pressing part 42 performs a pressing operation on the workpiece, so that the upper die seat 425 is tightly pressed against the workpiece, and sends a start test signal.

[0069] Among them, the placement position information of the workpiece after the pneumatic suction head 36 places the workpiece is obtained through sensors (such as position sensors, visual sensors, etc.) installed around the test component 4. These sensors can accurately detect the position coordinates of the workpiece in the installation groove 8 and transmit the data to the control system. At the same time, the electrical connection feedback information of the test circuit board 412 is received. The test circuit board 412 can feedback the electrical connection status to the control system through a specific signal transmission method (such as digital signal, analog signal, etc.), such as whether there is a stable current, voltage signal, etc. The relevant information of the receiving groove is obtained, including the size, shape, position accuracy, etc. of the receiving groove. This information can be pre-stored in the control system, or obtained through real-time detection by sensors.

[0070] Compare the placement position information with the relevant information of the receiving slot. Mathematical algorithms (such as coordinate comparison, shape matching, etc.) can be used to determine whether the workpiece is in the correct position. For example, compare whether the center coordinates of the workpiece and the center coordinates of the receiving slot are within the allowable error range, or determine whether the edge of the workpiece is aligned with the edge of the receiving slot. Analyze the electrical connection feedback information to determine whether the workpiece is normally connected to the test circuit board 412. Whether the electrical connection is good can be determined by detecting parameters such as current and voltage stability and signal strength. If the electrical connection is unstable or the signal strength is insufficient, it is determined to be an abnormal connection.

[0071] If the workpiece is in the correct position and is normally connected to the test circuit board 412, the control system outputs a confirmation work signal to the press member 42. This signal can be a specific electrical signal or a digital instruction, notifying the press member 42 that the next operation can be performed. After receiving the confirmation work signal, the press member 42 is ready to perform a press operation on the workpiece. If the workpiece is not in the correct position, the control system calculates the workpiece position deviation. The size and direction of the deviation can be determined by comparing the difference between the actual position of the workpiece and the correct position. Output an instruction to adjust the start suction head position to the material picking component 3. The instruction contains parameters such as the direction and distance of adjustment, so that the suction head can readjust the position of the workpiece. The material picking component 3 adjusts the suction head position according to the instruction and places the workpiece in the installation slot 8 again. Then the position judgment is performed again, and the above comparison and judgment steps are repeated until the workpiece is in the correct position. If the workpiece is not normally connected to the test circuit board 412, the control system outputs an instruction to check the circuit connection or prompt the operator to check the placement of the workpiece. This instruction can be conveyed to the operator through a display screen, an audible and visual alarm, etc., to remind them to check and handle it. The operator checks the circuit connection or workpiece placement. After troubleshooting, the control system reacquires the electrical connection feedback information for judgment.

[0072] When the pressing member 42 receives the confirmation work signal, it starts to press the workpiece. The third driving member drives the third slider 422 to slide on the third slide rail 421 in the direction close to the receiving platform 411, so that the upper die seat 425 on the second cylinder 424 is close to the mounting platform 413. The second cylinder 424 drives the upper die seat 425 to move in the direction close to the mounting platform 413 until the upper die seat 425 is tightly pressed against the workpiece. During the pressing process, the pressing force and speed should be controlled according to the characteristics of the workpiece and the test requirements to ensure good electrical contact without causing damage to the workpiece. Send a start test signal. After the pressing is completed, the control system sends a start test signal to start the test program and perform a performance test on the workpiece.

[0073] Specifically, in some possible embodiments, the method further includes: Get relevant parameters of the test process; Build a visual model of the test process to display the test standards and corresponding algorithms in a visual form; A visual interface showing the test process, including test steps and related parameters; Acquire real-time data of the upper computer 5 during the workpiece test, including changes in test signals and values ​​of test parameters; Obtaining judgment information made by the host computer 5 according to the test results; Perform data analysis and processing based on the acquired test data to obtain analysis results; Based on the analysis results, a visual interface of the test data is displayed, including test data curves, parameter statistics charts, and test result judgment information; Obtaining processing operation information of the material picking component 3 on the workpiece, including position information of moving qualified workpieces to the good workpiece holding component 6, and position information of moving unqualified workpieces to the bad workpiece holding area; A visual interface that displays the workpiece processing results, including the placement information of qualified and unqualified workpieces.

[0074] Among them, the relevant parameters of the test process are read through the communication interface with each component of the automated test device. These parameters may include the movement speed of each driving member, the pressure parameters of the cylinder, the sensitivity setting of the sensor, the test time interval, etc. For example, the speed range and acceleration parameters of the first driving member 23 driving the first slider 22 are obtained from the controller of the first driving member 23. At the same time, the relevant parameters of the test program, such as the test voltage, current range, test frequency, etc., are obtained from the host computer 5. These parameters can be obtained through the software interface of the host computer 5 or by database query.

[0075] Use professional visual modeling software or development tools to build a visual model of the test process. This model can be a two-dimensional or three-dimensional graphical representation, showing the various components of the test device and the workflow between them. The test standards and corresponding algorithms are displayed in the model in a visual form. For example, for the qualified standards of the test circuit board 412, different colors of indicator lights can be used to represent them, green for qualified and red for unqualified. The algorithm can be displayed next to the model in the form of a flow chart to facilitate the operator to understand the logic of the test.

[0076] A visual interface showing the test process on the display screen, including test steps and related parameters. The test steps can be presented in the form of a flow chart, with clear text descriptions and icons for each step. The related parameters can be displayed on one side of the interface in the form of a table or dashboard, with the values ​​of the parameters updated in real time. The operator can switch between different views and parameter display modes through the control buttons on the interface to better monitor the test process. For example, you can switch to a 3D view to view the overall layout of the test device and the movement path of the workpiece.

[0077] The host computer 5 acquires data in real time during the workpiece test process by communicating with the test circuit board 412 and various sensors. These data include changes in test signals, such as real-time values ​​of parameters such as voltage, current, and resistance, and values ​​of test parameters, such as environmental parameters such as temperature, humidity, and pressure. The data can be transmitted to the visualization system via network transmission or direct connection for real-time display and analysis.

[0078] The host computer 5 makes judgment information based on the test results, such as whether the workpiece is qualified, whether the test is passed, etc. These judgment information can be obtained through a specific communication protocol or database query. The judgment information can be displayed on the visual interface in the form of text, icons or color coding, which is convenient for operators to quickly understand the test results.

[0079] Analyze and process the acquired test data, and use statistical analysis, data mining and other methods to obtain analysis results. For example, calculate the average, standard deviation, maximum, minimum and other statistical parameters of the test data, and analyze the distribution and trend changes of the data. Based on the analysis results, determine whether the test process is normal and whether the performance of the workpiece meets the requirements. If abnormal data or trend changes are found, issue an alarm in time to remind the operator to check and handle.

[0080] Based on the analysis results, the test data curve, parameter statistics chart, etc. are displayed on the visual interface. The test data curve can be displayed in the form of line chart, bar chart, pie chart, etc., which intuitively reflects the changing trend of the test data. Parameter statistics charts can be displayed in the form of tables, histograms, scatter plots, etc., which are convenient for operators to view the distribution and statistical characteristics of test parameters. At the same time, the test result judgment information is displayed, such as the number of qualified workpieces, the number of unqualified workpieces, the test pass rate, etc. This information can be displayed on one side of the interface in the form of numbers, percentages, charts, etc., which is convenient for operators to perform quality control and production management.

[0081] The processing operation information of the pick-up component 3 on the workpiece is obtained through the communication interface with the pick-up component 3. This information includes the position information of moving the qualified workpiece to the good workpiece holding component 6, and the position information of moving the unqualified workpiece to the bad workpiece holding area. The position information can be expressed in coordinates or displayed in a graphical way on a visual interface, so that the operator can understand the whereabouts of the workpiece.

[0082] The visual interface displays the workpiece processing results on the visual interface, including the placement information of qualified and unqualified workpieces. Different colored icons or marks can be used to represent qualified and unqualified workpieces, which is convenient for operators to distinguish and manage. Operators can use the query function on the interface to find the processing results and location information of specific workpieces for subsequent processing and tracing.

[0083] The embodiments of this specific implementation method are all preferred embodiments of the present application, and are not intended to limit the protection scope of the present application. Therefore, all equivalent changes made based on the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. An automated testing device, characterized in that: The invention comprises a workbench (1), on which are provided a workpiece holding component (2) for testing, a material picking component (3), a test component (4), a host computer (5) and a good workpiece holding component (6); the material picking component (3) is used to transfer the workpiece on the workpiece holding component (2) for testing to the test component (4), so that the workpiece and the test component (4) are electrically connected, and the test component (4) and the host computer (5) are electrically connected, and the host computer (5) cooperates with the test component (4) to test the workpiece, and the material picking component (3) transfers the workpiece after testing to the workpiece holding component (2) for testing or to the good workpiece holding component (6).

2. An automated testing device according to claim 1, characterized in that: The workpiece holding component (2) to be inspected comprises a first slide rail (21), a first slider (22) is provided on the first slide rail (21), the first slider (22) is connected to a first driving member (23), and the first slider (22) is driven by the first driving member (23) to slide on the first slide rail (21) towards or away from the material picking component (3), a first holding tray (24) is provided on the first slider (22), a plurality of first holding slots (7) are provided on the first holding tray (24), and a workpiece holding area to be inspected and a defective workpiece holding area are provided on the first holding tray (24).

3. An automated testing device according to claim 1, characterized in that: The material picking assembly (3) comprises a mounting frame (31), a second slide rail (32) is provided on the mounting frame (31), a second slider (33) is provided on the second slide rail (32), the second slider (33) is connected to a second driving member (34), the second slider (33) is driven by the second driving member (34) to slide on the second slide rail (32) towards or away from the test assembly (4), the second slider (33) is provided with a first cylinder (35), the first cylinder (35) is provided with a pneumatic suction head (36), the pneumatic suction head (36) is driven by the first cylinder (35) to move towards or away from the workbench (1).

4. An automated testing device according to claim 1, characterized in that: The test assembly (4) comprises a receiving part (41) and a pressing part (42); the receiving part (41) comprises a receiving platform (411) arranged on the workbench (1); a test circuit board (412) is arranged on the receiving platform (411); the test circuit board (412) is electrically connected to the host computer (5); a mounting platform (413) is arranged on the receiving platform (411); a mounting groove (8) is recessed in the mounting platform (413) for workpiece mounting; a plurality of jacks (9) are hollowly arranged in the mounting groove (8); the workpiece is electrically connected to the test circuit board (412) via the jacks (9).

5. An automated testing device according to claim 4, characterized in that: The pressing part (42) includes a third slide rail (421) arranged on the workbench (1), a third slider (422) is arranged on the third slide rail (421), and the third slider (422) is connected to a third driving part, and the third slider (422) is driven by the third driving part to slide on the third slide rail (421) in a direction close to or away from the receiving platform (411), and a second cylinder (424) is arranged on the third slider (422), and an upper mold base (425) is arranged on the second cylinder (424), and the upper mold base (425) is driven by the second cylinder (424) to move in a direction close to or away from the mounting platform (413).

6. An automated testing device according to claim 1, characterized in that: The good workpiece holding assembly (6) includes a fourth slide rail (61), a fourth slider (62) is provided on the fourth slide rail (61), the fourth slider (62) is connected to a fourth driving member (63), and the fourth slider (62) is driven by the fourth driving member (63) to slide on the fourth slide rail (61) toward or away from the material picking assembly (3), the fourth slider (62) is provided with a second holding tray (64), and the second holding tray (64) is provided with a plurality of second holding slots (10).

7. An automated testing method, characterized in that: Using an automated testing device as described in claims 1-6, the method steps include: Placing the workpieces to be inspected one by one in a first containing groove (7) in the area for containing the workpieces to be inspected; The first driving member (23) of the workpiece holding assembly (2) to be inspected drives the first slide block (22) to slide on the first slide rail (21), so that the first holding tray (24) is close to the material picking assembly (3); the second driving member (34) of the material picking assembly (3) drives the second slide block (33) to slide on the second slide rail (32) towards the workpiece holding assembly (2) to be inspected, and at the same time, the first cylinder (35) drives the pneumatic suction head (36) to move towards the workbench (1); the pneumatic suction head (36) sucks the workpiece in the workpiece holding area to be inspected in the first holding tray (24); The second driving member (34) drives the second slide block (33) to slide on the second slide rail (32) to move the sucked workpiece to the top of the test assembly (4); the pneumatic suction head (36) places the workpiece in the mounting groove (8) of the mounting platform (413) of the receiving member (41) of the test assembly (4), and the workpiece is electrically connected to the test circuit board (412) through the socket (9) in the mounting groove (8); The pressing member (42) of the test assembly (4) starts to work, and the third driving member drives the third sliding block (422) to slide on the third sliding rail (421) in a direction close to the receiving platform (411), so that the upper die seat (425) on the second cylinder (424) is close to the mounting platform (413); the second cylinder (424) drives the upper die seat (425) to move in a direction close to the mounting platform (413) until the upper die seat (425) is tightly pressed against the workpiece to ensure good electrical contact, thereby preparing for the test; The host computer (5) starts the test program and detects the workpiece through the test circuit board (412). During the test, the host computer (5) analyzes and processes the signal fed back by the test circuit board (412) according to the preset test standard and algorithm; the host computer (5) determines whether the workpiece is qualified according to the test result; if the workpiece is qualified, the pneumatic suction head (36) of the material taking component (3) sucks the workpiece from the mounting table (413) of the test component (4), and the second driving member (34) drives the second slide block (33) to slide on the second slide rail (32) to move the workpiece to the top of the good workpiece holding component (6), and then the pneumatic suction head (36) places the workpiece in the second holding groove (10) of the second holding tray (64); if the workpiece is unqualified, the pneumatic suction head (36) sucks the workpiece from the test component (4), and the second driving member (34) drives the second slide block (33) to slide on the second slide rail (32) to move the workpiece to the corresponding position of the defective workpiece holding area of ​​the first holding tray (24); Repeat the above steps to test all the workpieces to be tested on the first holding tray (24) until all the workpieces have been tested. During the test process, if the test result of a workpiece is uncertain or an abnormal situation occurs and needs to be retested, it can be placed back in the workpiece holding area to be tested and tested again according to the above steps.

8. An automated testing method according to claim 7, characterized in that: The steps after placing the workpieces to be inspected one by one in the first containing groove (7) of the workpiece containing area to be inspected include: Obtaining workpiece position information of a plurality of workpieces to be inspected in a workpiece storage area to be inspected; Obtaining suction head position information of a pneumatic suction head (36) in a material picking component (3); According to the acquired workpiece position information and suction head position information, the distance and direction that the pneumatic suction head (36) needs to move in the X direction are calculated, and the distance and direction that the first receiving tray (24) needs to move in the Y direction are calculated; Sending a control instruction to the first driving member (23) and the second driving member (34) so ​​that the pneumatic suction head (36) is initially aligned with the position of the workpiece; Obtain physical feature information of the workpiece; Based on the physical characteristic information, dynamically adjusting the suction force and suction mode of the pneumatic suction head (36) through the first cylinder (35); Sending a control instruction to the first cylinder (35) so that the first cylinder (35) drives the pneumatic suction head (36) to descend in the Z direction and approach the surface of the workpiece; Obtaining a suction signal of the pneumatic suction head (36) successfully sucking the workpiece, and obtaining accurate position information of the mounting table (413) in the test assembly (4); Calculating the precise distance and direction that the pneumatic suction head (36) needs to move in the XZ direction based on the current position of the pneumatic suction head (36) and the precise position information of the mounting platform (413); The moving path is optimized according to a preset algorithm, and precise control instructions are sent to the second driving member (34) and the first cylinder (35), so as to drive the pneumatic suction head (36) to move the suction head in the X and Z directions according to the optimized moving path, so as to accurately move the workpiece to the top of the test assembly (4); A control command is sent to the first cylinder (35) to drive the pneumatic suction head (36) to descend in the Z direction, so as to place the workpiece in the mounting groove (8) of the mounting table (413) of the test assembly (4); at the same time, according to the position feedback during the placement process, the descending speed and the final position of the pneumatic suction head (36) are dynamically adjusted to ensure that the workpiece is accurately placed and well electrically connected to the test circuit board (412).

9. An automated testing method according to claim 8, characterized in that: The steps after placing the workpiece in the mounting groove (8) of the mounting table (413) of the test assembly (4) include: Acquiring the placement position information of the workpiece after the pneumatic suction head (36) places the workpiece, as well as the electrical connection feedback information of the test circuit board (412), and acquiring the relevant information of the receiving groove at the same time; Compare the placement position information with the relevant information of the receiving slot to determine whether the workpiece is in the correct position; analyze the electrical connection feedback to determine whether the workpiece and the test circuit board (412) are normally connected; If the workpiece is in the correct position and the workpiece is normally connected to the test circuit board (412), a work confirmation signal is output to the pressing part (42); If the workpiece is not in the correct position, the workpiece position deviation is calculated, and an instruction to adjust the start suction head position is output to the material picking component (3), so that the suction head readjusts the workpiece position, and then determines again whether the workpiece is in the correct position; If the workpiece is not normally connected to the test circuit board (412), an instruction to check the circuit connection or to prompt the operator to check the placement of the workpiece is output, and then electrical connection feedback information is re-acquired for judgment; When the pressing part (42) receives the confirmation work signal, the pressing part (42) performs a pressing operation on the workpiece, so that the upper die seat (425) and the workpiece are tightly pressed together, and sends a start test signal.

10. An automated testing method according to claim 9, characterized in that: The method also includes: Get relevant parameters of the test process; Build a visual model of the test process to display the test standards and corresponding algorithms in a visual form; A visual interface showing the test process, including test steps and related parameters; Acquiring real-time data of the host computer (5) during the test of the workpiece, including changes in test signals and values ​​of test parameters; Obtaining judgment information made by the host computer (5) based on the test results; Perform data analysis and processing based on the acquired test data to obtain analysis results; Based on the analysis results, a visual interface of the test data is displayed, including test data curves, parameter statistics charts, and test result judgment information; Obtaining processing operation information of the material picking component (3) on the workpiece, including position information of moving qualified workpieces to the good workpiece holding component (6), and position information of moving unqualified workpieces to the bad workpiece holding area; A visual interface that displays the workpiece processing results, including the placement information of qualified and unqualified workpieces.

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