Automatic electrostatic discharge testing device

Abstract

The utility model relates to an automatic electrostatic discharge testing device, which relates to the technical field of automatic electrostatic discharge testing systems and comprises a cooperative manipulator, an electrostatic discharge simulator, a pressure sensor, 3D scanning hardware, an upper computer software control system and an industrial control cart. The cooperative manipulator and the upper computer software control system are both installed on the industrial control cart, the electrostatic discharge simulator, the 3D scanning hardware and the pressure sensor are all installed at the execution tail end of the cooperative manipulator, and the pressure sensor is used for monitoring the pressure threshold value of the electrostatic discharge simulator. And the cooperative manipulator, the electrostatic discharge simulator, the pressure sensor and the electrostatic discharge simulator are electrically connected with the upper computer software control system. The device has the effects of reducing the labor intensity of workers in an electrostatic discharge test and ensuring the accuracy of a test result.

Description

Technical Field

[0001] This application relates to an automated electrostatic discharge test system, and particularly to an automated electrostatic discharge test device. Background Art

[0002] With the rapid development of the electronics industry, the construction of intelligent laboratories and factories has become the key to improving production efficiency and product quality. However, the problem of static electricity has always been a potential threat during the production and use of electronic products, which may cause damage, performance degradation or even failure of electronic components, seriously affecting the reliability and safety of products. In addition, the concept of automated electrostatic discharge has also been proposed in the latest automotive electrostatic discharge standard ISO 10605, which is also a promotion for the automated production and testing of automobiles and automotive components. In order to address this challenge, we have proposed a set of automated electrostatic discharge test system solutions tailored specifically for intelligent laboratories and factories.

[0003] Due to the different combinations of multiple positions, test levels, test polarizations and test methods in electrostatic discharge testing, the test time is long and the test repeatability is high. This test is a monotonous and laborious task. When operated manually for a long time, the uncertainty of the operation may increase, which may in turn affect the accuracy of the test results. Summary of the Utility Model

[0004] In order to reduce the labor intensity of workers in electrostatic discharge testing and ensure the accuracy of test results, this application provides an automated electrostatic discharge test device.

[0005] The automated electrostatic discharge test device provided by this application adopts the following technical solutions:

[0006] An automated electrostatic discharge test device includes a collaborative manipulator, an electrostatic discharge simulator, a pressure sensor, 3D scanning hardware, a host computer software control system and an industrial control cart. The collaborative manipulator and the host computer software control system are both installed on the industrial control cart. The electrostatic discharge simulator, the 3D scanning hardware and the pressure sensor are all installed at the execution end of the collaborative manipulator. The pressure sensor is used to monitor the pressure threshold of the electrostatic discharge simulator. The collaborative manipulator, the electrostatic discharge simulator, the pressure sensor and the electrostatic discharge simulator are all electrically connected to the host computer software control system.

[0007] By adopting the above technical solutions, the host computer software control system controls the position of the electrostatic discharge simulator through the collaborative manipulator, and reduces the occurrence of damage to the electrostatic discharge gun head or the gun head crushing the test sample during the operation of the test system through the pressure sensor. Subsequently, the electrostatic discharge simulator simulates the direct discharge caused by the human body or surrounding objects when contacting the device, as well as the indirect discharge of the person or object to the adjacent object of the device. At the same time, the 3D scanning hardware selects the discharge points at the positions to be measured based on the modeling, and then the camera scans from multiple angles, and the host computer software control system selects the cloud map and the target position, and obtains the coordinate data for subsequent ESD test actions.

[0008] Thus, the entire test work is completed by the collaborative manipulator, which can reduce the labor intensity of workers in electrostatic discharge testing and ensure the accuracy of test results.

[0009] Optionally, the 3D scanning hardware is set as a 3D camera calibration system, and the 3D camera calibration system is used to model the product to be tested, and the 3D camera calibration system is electrically connected to the host computer software control system.

[0010] By adopting the above technical solutions, the 3D camera calibration system, also known as the scanning imaging device, is used to model the product to be tested, and the 3D camera calibration system can select the discharge points at the positions to be measured based on the modeling.

[0011] The object to be tested maintains a certain distance from the 3D camera and has a certain area limit. After the object to be tested is placed in the specified area, the camera in the 3D camera calibration system takes pictures from multiple angles, generates a point cloud map and a 2D color plan view, and the coordinate data corresponds to these two maps. The mouse in the host computer software control system clicks on the target position on the cloud map and the 2D photo to obtain the coordinate data for subsequent ESD test actions.

[0012] Optionally, the electrostatic discharge simulator is used to simulate the direct discharge caused by the human body or surrounding objects when contacting the device. The electrostatic discharge simulator includes an electrostatic gun and a fixture, and the fixture is fixedly connected to the execution end of the collaborative manipulator, and the fixture clamps the electrostatic gun.

[0013] By adopting the above technical solutions, the electrostatic gun is fixed by using a fixture. When it is necessary to replace the electrostatic gun with different test standards, only the fixation of the fixture on the electrostatic gun needs to be cancelled to quickly complete the model change.

[0014] Optionally, the industrial control cart includes an integrally arranged manipulator control cabinet and a multi-functional control cabinet.

[0015] By adopting the above technical solution, the host computer in the collaborative manipulator can be placed in the manipulator control cabinet, and the upper computer software control system can be placed in the multi-functional control cabinet, thereby facilitating the placement of the host computer and the upper computer software control system in the collaborative manipulator.

[0016] Optionally, the industrial control trolley further includes a plurality of heavy-duty casters installed at its lower end.

[0017] By adopting the above technical solution, the use of heavy-duty casters can facilitate the flexible movement of the industrial control trolley while supporting it.

[0018] Optionally, the overall structure of the industrial control trolley is made of alloy material.

[0019] By adopting the above technical solution, the overall structure of the industrial control trolley made of alloy material has strong durability.

[0020] Optionally, the corners of the industrial control trolley are arc-shaped corners.

[0021] By adopting the above technical solution, the arc-shaped corner design takes into account both aesthetics and anti-collision human engineering, improving the safety of the industrial control trolley during movement.

[0022] In summary, the present application includes at least one of the following beneficial technical effects:

[0023] 1. The 3D camera has accurate spatial positioning and is suitable for testing products with a risk of discharge, such as battery packs, airbags, etc.;

[0024] 2. For repetitive ESD tests or tests with a long cycle, this system liberates human labor. At the same time, mechanical operation will reduce human operation errors and has reproducibility. It is suitable for tested products with many tested points and long-term electrostatic discharge, and can shorten the experimental time;

[0025] 3. The test process and results can be remotely monitored, and it adopts a compact design with a small footprint. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 is a schematic diagram of the overall structure of an embodiment of the present application;

[0027] In the figure, 1, collaborative manipulator; 2, electrostatic discharge simulator; 21, electrostatic gun; 22, fixture; 3, pressure sensor; 4, 3D scanning hardware; 5, upper computer software control system; 6, industrial control trolley; 61, manipulator control cabinet; 62, multi-functional control cabinet; 63, heavy-duty caster. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0028] The following will further describe the present application in detail with reference to the appended Figure 1 ,.

[0029] Embodiments of the present application are as follows: An automated electrostatic discharge test device, referring to Figure 1 , includes a host computer software control system 5 and an industrial control trolley 6.

[0030] In this embodiment, the corners of the industrial control trolley 6 are arc-shaped corners and the overall structure of the industrial control trolley 6 is made of alloy materials. The industrial control trolley 6 includes an integrally provided manipulator control cabinet 61 and a multi-functional control cabinet 62. Among them, the manipulator control cabinet 61 and the multi-functional control cabinet 62 are arranged in a stepped manner, and the height of the manipulator control cabinet 61 is lower than that of the multi-functional control cabinet 62. The industrial control trolley 6 also includes four heavy-duty casters 63 installed at its lower end, and the four heavy-duty casters 63 are respectively located at the four corners of the lower end of the industrial control trolley 6.

[0031] A collaborative manipulator 1 is installed at the upper end of the manipulator control cabinet 61, and the host in the collaborative manipulator 1 is placed in the manipulator control cabinet 61. The host computer software control system 5 is located at the multi-functional control cabinet 62.

[0032] An electrostatic discharge simulator 2 is provided at the execution end of the collaborative manipulator 1. The electrostatic discharge simulator 2 in this embodiment is a mature test system in electrostatic discharge testing, which is a prior art. It is used to simulate the direct discharge caused by a human body or surrounding objects when contacting a device. Its built-in RC module is replaceable to ensure the simulation of various test scenarios. The electrostatic discharge simulator 2 is electrically connected to the host computer software control system 5. The host computer software control system 5 can control the discharge parameters, test voltage level, polarization, discharge mode, discharge frequency, interval time, etc. of the electrostatic discharge simulator 2.

[0033] The electrostatic discharge simulator 2 includes an electrostatic gun 21 and a fixture 22. The fixture 22 is fixedly connected to the execution end of the collaborative manipulator 1, and the fixture 22 clamps the electrostatic gun 21. Therefore, when it is necessary to replace the electrostatic gun 21 with different test standards, only the fixation of the fixture 22 on the electrostatic gun 21 needs to be cancelled to quickly complete the model change.

[0034] A 3D scanning hardware 4 is also installed at the execution end of the manipulator. The 3D scanning hardware 4 in this embodiment is set as a 3D camera calibration system, and the 3D camera calibration system is used to model the product to be tested. The 3D camera calibration system is electrically connected to the host computer software control system 5.

[0035] Thus, the host computer software control system 5 can control the 3D camera calibration system to select the discharge point at the position to be measured based on the modeling, while keeping a certain distance between the object to be measured and the 3D camera, and there are certain area restrictions. After the object to be measured is placed in the specified area, the cameras in the 3D camera calibration system will take pictures from multiple angles, generate a point cloud map and a 2D color plan view, and the coordinate data corresponds to these two maps. Subsequently, the target position on the cloud map and the 2D photo is clicked through the mouse in the host computer software control system 5 to obtain the coordinate data for subsequent ESD test actions.

[0036] A pressure sensor 3 is also installed at the execution end of the collaborative manipulator 1. The pressure sensor 3 is used to monitor the pressure threshold of the electrostatic discharge simulator 2. The pressure sensor 3. The pressure sensor 3 can sense the pressure of the head of the electrostatic gun 21 on the surface of the test sample. The pressure sensor 3 is electrically connected to the host computer software control system 5.

[0037] Thus, during the contact discharge test, the electrostatic discharge simulator 2 is carried by the collaborative manipulator 1 to move closer to the test position. When the pressure sensor 3 contacts the sample along with the electrostatic gun 21, it will sense the pressure of the head of the electrostatic gun 21 on the surface of the test sample and transmit the sensed data to the host computer software control system 5. When the set pressure threshold is reached, the electrostatic discharge gun and the collaborative manipulator 1 will stop moving.

[0038] The implementation principle of the embodiment of the present application is as follows: During the position calibration process, the collaborative manipulator 1 is operated through the host computer software control system 5 to reach the scanning position to assist the 3D camera calibration system to complete image drawing and position coordinate information acquisition. During the electrostatic discharge test process, after all the points to be measured are calibrated, the electrostatic discharge simulator 2 is driven by the collaborative manipulator 1 to move to the corresponding point to be tested and complete the discharge task. At the same time, the host computer software control system 5 controls the movement of the collaborative manipulator 1 during this process to assist the 3D camera calibration system to generate a coordinate map, set the pressure threshold of the pressure sensor 3, and control the electrostatic discharge simulator 2 to discharge.

[0039] The embodiments of the present specific implementation manners are all preferred embodiments of the present application, and do not limit the protection scope of the present application accordingly. The same components are denoted by the same reference numerals. Therefore, all equivalent changes made according to the structure, shape, and principle of the present application should be covered within the protection scope of the present application.

Claims

1. An automated electrostatic discharge testing device, characterized in that: It comprises a collaborative robot (1), an electrostatic discharge simulator (2), a pressure sensor (3), 3D scanning hardware (4), a host computer software control system (5) and an industrial control cart (6), wherein the collaborative robot (1) and the host computer software control system (5) are both installed on the industrial control cart (6), the electrostatic discharge simulator (2), the 3D scanning hardware (4) and the pressure sensor (3) are all installed at the execution end of the collaborative robot (1), the pressure sensor (3) is used to monitor the pressure threshold of the electrostatic discharge simulator (2), and the collaborative robot (1), the electrostatic discharge simulator (2), the pressure sensor (3) and the electrostatic discharge simulator (2) are all electrically connected to the host computer software control system (5).

2. An automated electrostatic discharge testing device according to claim 1, characterized in that: The 3D scanning hardware (4) is configured as a 3D camera calibration system, the 3D camera calibration system is used to model the product under test, and the 3D camera calibration system is electrically connected to the host computer software control system (5).

3. An automated electrostatic discharge testing device according to claim 1, characterized in that: The electrostatic discharge simulator (2) is used to simulate direct discharge caused by a human body or a surrounding object when contacting a device. The electrostatic discharge simulator (2) comprises an electrostatic gun (21) and a clamp (22). The clamp (22) is fixedly connected to the execution end of the collaborative robot (1), and the clamp (22) clamps the electrostatic gun (21).

4. The automated electrostatic discharge testing device according to claim 1, characterized in that: The industrial control cart (6) comprises an integrally arranged manipulator control cabinet (61) and a multifunctional control cabinet (62).

5. An automated electrostatic discharge testing device according to claim 4, characterized in that: The industrial control cart (6) further comprises a plurality of heavy-duty casters (63) mounted at its lower end.

6. The automated electrostatic discharge testing device according to claim 1, characterized in that: The overall structure of the industrial control cart (6) is made of alloy material.

7. The automated electrostatic discharge testing device according to claim 1, characterized in that: The corners of the industrial control cart (6) are arc-shaped corners.

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