Automatic electrostatic discharge test system

Abstract

An automatic electrostatic discharge test system comprises a working platform, a displacement mechanism and a detection assembly. The displacement mechanism comprises a three-coordinate gantry mechanical arm and a rotary connecting piece. And the three-coordinate gantry mechanical arm is arranged on the working platform. The rotary connecting piece is arranged on the three-coordinate gantry mechanical arm and provides an alignment function in a multi-angle range. The detection assembly comprises an electrostatic gun, an infrared range finder, a camera and a nozzle type electrostatic eliminator. And the electrostatic gun is arranged on the rotary connecting piece. The infrared distance meter provides a measurement signal, and the measurement signal displays the distance between the discharge electrode and the test point of the test sample. And the camera records a video of the moving process of the electrostatic gun. The nozzle type static electricity eliminator eliminates residual static electricity on the test sample after the static electricity gun discharges. The system can achieve automation of electrostatic discharge testing, and can be particularly applied to an object to be tested with a curved surface.

Description

Technical Field

[0001] The present invention relates to an automated electrostatic discharge test system. Background Art

[0002] Traditionally, electrostatic discharge testing relies on manual operations, which not only consumes a large amount of manpower and time. In addition, manual operations lack stability and poor accuracy, making it difficult to achieve repeatability and reproducibility in electrostatic discharge testing.

[0003] Although there are currently some patents on electrostatic discharge test systems, most of these patents belong to semi-automated systems, and there is still room for improvement in operation efficiency. Moreover, these patents also lack mechanisms that can correctly perform electrostatic discharge testing on the curved surfaces of the objects under test. For example, Taiwan, China TWI435089B and CN106249085 disclose a mobile bracket arranged on a test platform, as well as components necessary for standardized electrostatic discharge testing such as an electrostatic gun and insulation settings. However, the technical solutions disclosed therein are only systems that assist technicians in positioning test points to reduce operation errors, and the technical goal of unmanned full-automatic detection cannot be achieved. Patent document CN114675115A discloses a full-automatic electrostatic discharge test system that uses an electrostatic gun installed on a six-axis robotic arm. However, although it can move axially in six degrees of freedom, the spatial obstruction caused by the robotic arm itself makes it impossible to fully rely on the robotic arm itself to achieve fully automated electrostatic discharge detection, and a rotating platform is also required. Summary of the Invention

[0004] In order to solve the above problems and overcome the deficiencies of the prior art, the purpose of the present invention is to provide an automated electrostatic discharge test system.

[0005] The technical solution adopted by the present invention is as follows:

[0006] An automated electrostatic discharge test system includes a working platform, a displacement mechanism, and a detection component. The working platform is electrically insulated and used to carry test samples. The displacement mechanism includes a three-coordinate gantry robotic arm and a rotating connecting piece. The three-coordinate gantry robotic arm is arranged on the working platform. The rotating connecting piece is arranged on the three-coordinate gantry robotic arm and provides an alignment function within a multi-angle range. The detection component is arranged on the displacement mechanism and includes an electrostatic gun, an infrared rangefinder, a camera, and a nozzle-type electrostatic eliminator. The electrostatic gun is arranged on the rotating connecting piece and includes a discharge electrode. The infrared rangefinder is configured to provide a first measurement signal, and the first measurement signal shows the distance between the discharge electrode and the test point of the test sample. The camera is configured to record a video of the moving process of the electrostatic gun. The nozzle-type electrostatic eliminator is configured to eliminate the residual static electricity on the test sample after the electrostatic gun discharges.

[0007] In some embodiments, the three - coordinate gantry robot arm includes a first horizontal moving member, a second horizontal moving member, and a vertical moving member. The first horizontal moving member includes two feet movably connected to the working platform and a crossbeam portion connected between the two feet. The second horizontal moving member is movably disposed on the crossbeam portion. The vertical moving member is movably disposed on the second horizontal moving member. A rotating connector is disposed at the end of the vertical moving member.

[0008] In some embodiments, the automated electrostatic discharge testing system further includes a central control electronic device configured to receive a first measurement signal and generate a control signal based on the first measurement signal. The rotating connector is configured to receive the control signal and rotate the electrostatic gun according to the control signal so that the discharge electrode of the electrostatic gun is aligned with the test point and is at a preset test distance from the test point.

[0009] In some embodiments, the central control electronic device is configured to determine the actual path of the electrostatic gun based on the video and determine whether the actual path matches the predetermined path of the electrostatic gun.

[0010] In some embodiments, during the process of the electrostatic discharge test operation, the central control electronic device is configured to obtain real - time video from a camera and determine whether the electrostatic gun deviates from the predetermined path based on the real - time video.

[0011] In some embodiments, when the central control electronic device determines that the electrostatic gun deviates from the predetermined path, the central control electronic device is configured to stop the electrostatic discharge test operation.

[0012] In some embodiments, when the central control electronic device determines that the electrostatic gun deviates from the predetermined path, the central control electronic device is configured to issue a warning.

[0013] In some embodiments, the automated electrostatic discharge testing system further includes a rotating horizontal coupling platform. The rotating horizontal coupling platform is disposed on the working platform and is configured to carry the test sample and drive the test sample to rotate.

[0014] In some embodiments, the infrared rangefinder is further configured to provide a second measurement signal indicating whether the discharge electrode is substantially perpendicular to the surface of the test sample. The automated electrostatic discharge testing system further includes a central control electronic device configured to control the rotating connector to rotate the electrostatic gun based on the second measurement signal so that the discharge electrode of the electrostatic gun is perpendicular to the surface of the test sample.

[0015] In some embodiments, the rotating connector is a spherical universal joint.

[0016] In summary, the automated electrostatic discharge testing system of the present disclosure is equipped with a three - coordinate gantry robotic arm and a rotating connector. After setting the test points, the system can automatically move the electrostatic gun to the preset test points for testing. The system also includes an infrared rangefinder, which can provide signals to help the system adjust the direction of the electrostatic gun to ensure that the electrode of the electrostatic gun discharges at the test point of the test sample. The system also includes a nozzle - type static eliminator, which moves along with the electrostatic gun, facilitating the removal of residual static electricity on the test sample (or the discharge electrode and the test sample) after each discharge of the electrostatic gun. The system also includes a camera, which can record the video of the movement process of the electrostatic gun for subsequent analysis. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] To make the above - mentioned and other objectives, features, advantages and implementation manners of the present disclosure more obvious and understandable, the drawings are described as follows:

[0018] Figure 1 FIG. is a schematic perspective view of an automated electrostatic discharge testing system according to an embodiment of the present disclosure;

[0019] Figure 2 FIG. is a schematic perspective view of an automated electrostatic discharge testing system according to another embodiment of the present disclosure;

[0020] Figure 3 FIG. is a functional block diagram of an automated electrostatic discharge testing system according to an embodiment of the present disclosure;

[0021] Figure 4 FIG. is a schematic diagram showing electrostatic discharge testing along a curved surface;

[0022] Figure 5 FIG. is a schematic perspective view of an automated electrostatic discharge testing system according to another embodiment of the present disclosure;

[0023] Figure 6 FIG. is a schematic diagram showing the application of static electricity by tilting the electrostatic gun on the surface of the test sample.

[0024] SYMBOL DESCRIPTION

[0025] 10, 12: Automated electrostatic discharge testing system

[0026] 20: Workbench

[0027] 21: Track

[0028] 23: Displacement mechanism

[0029] 25: Rotating connector

[0030] 30: Three - coordinate gantry robotic arm

[0031] 31: First horizontal moving component

[0032] 32: Second horizontal moving part

[0033] 33: Vertical moving part

[0034] 34: Support foot

[0035] 35: Crossbeam part

[0036] 50: Central control electronic device

[0037] 53: Rotating horizontal coupling platform

[0038] 56: Bracket

[0039] 70: Detection component

[0040] 71: Electrostatic gun

[0041] 72: Discharge electrode

[0042] 73: Infrared rangefinder

[0043] 75: Camera

[0044] 77: Nozzle type static eliminator

[0045] 90: Test sample

[0046] 96: Curved surface

[0047] X, Y, Z: Directions Detailed implementation manners

[0048] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific implementation manners.

[0049] Please refer to Figure 1 . Figure 1Schematic perspective view showing an automated electrostatic discharge test system according to an embodiment of the present disclosure. The automated electrostatic discharge test system 10 includes a work platform 20, a displacement mechanism 23, and a detection component 70. The work platform 20 is electrically insulated and used to carry a test sample 90. The displacement mechanism 23 includes a three-coordinate gantry robot 30 and a rotating connector 25. The three-coordinate gantry robot 30 is disposed on the work platform 20, for example, on the tabletop of the work platform 20 used to carry the test sample 90. The rotating connector 25 is disposed on the three-coordinate gantry robot 30 and provides an alignment function within a multi-angle range (for example: provides a movement range of at least 240 degrees). The detection component 70 is disposed on the displacement mechanism 23 and is driven by the displacement mechanism 23 to move in the space above the work platform 20. The detection component 70 includes an electrostatic gun 71, and the electrostatic gun 71 is disposed on the rotating connector 25 and includes a discharge electrode 72. When the automated electrostatic discharge test system 10 performs an electrostatic discharge test operation, the electrostatic gun 71 is configured to discharge according to at least one test condition (for example: test voltage and test position). The discharge electrode 72 of the electrostatic gun 71 can discharge by contacting the surface of the test sample 90, discharging while maintaining a preset test distance from the surface of the test sample 90, or discharging in the pores of the test sample 90.

[0050] Therefore, in the above configuration, the displacement mechanism 23 includes two settings: rough positioning and fine positioning. The rough positioning is to first perform a preliminary positioning through the three-coordinate gantry robot 30, and the fine positioning is to align the electrostatic gun 71 with the test point through the rotating connector 25 for the discharge test.

[0051] In some embodiments, the work platform 20 includes an electrically insulated upper surface, and this surface is used to carry the test sample 90 and has sufficient space to enable the test sample 90 to be placed on the work platform 20 at an appropriate distance from other electrical items (for example: the above-mentioned electrostatic gun 71 and the infrared rangefinder, camera, and nozzle-type electrostatic eliminator introduced below). In some embodiments, the work platform 20 has sufficient space to enable the automated electrostatic discharge test to be carried out in a working environment that meets standard inspection requirements, and the working environment that meets standard inspection requirements is, for example, in accordance with the regulations of ISO10605, IEC61000-4-2, or other similar electrical inspection test standards.

[0052] As Figure 1As shown, the three-coordinate gantry robot arm 30 includes a first horizontal moving member 31. The first horizontal moving member 31 includes two feet 34 and a crossbeam portion 35. The two feet 34 are disposed on two opposite edges of the work platform 20 and are movably connected to the work platform 20. The crossbeam portion 35 is connected between the two feet 34 and extends above the work platform 20. The feet 34 can be connected to the rails 21 extending along the direction Y on the work platform 20, so that the first horizontal moving member 31 can be translated as a whole along the direction Y.

[0053] As Figure 1 As shown, the three-coordinate gantry robot arm 30 further includes a second horizontal moving member 32 and a vertical moving member 33. The second horizontal moving member 32 is movably disposed on the crossbeam portion 35, and the second horizontal moving member 32 is configured to translate relative to the first horizontal moving member 31 along the direction X. The vertical moving member 33 is movably disposed on the second horizontal moving member 32, and the vertical moving member 33 is configured to translate relative to the second horizontal moving member 32 along the direction Z. The directions X, Y, and Z are perpendicular to each other, forming an orthogonal coordinate system. The directions X and Y are substantially parallel to the tabletop of the work platform 20 for carrying the test sample 90, and the direction Z is substantially perpendicular to the tabletop. Therefore, under the drive of the three-coordinate gantry robot arm 30, the detection assembly 70 can move along the three directions X, Y, and Z and can reach any position above the work platform 20 to meet the test requirements.

[0054] As Figure 1 As shown, a rotating connector 25 is disposed at the end of the vertical moving member 33. The rotating connector 25 is configured to drive the electrostatic gun 71 to rotate so that the electrostatic gun 71 is aligned with the test point for discharging. In some embodiments, the rotating connector 25 can be a tilt connector that can drive the electrostatic gun 71 to rotate in a vertical plane (tilt up or down). In some embodiments, the rotating connector 25 can also have a horizontal rotation function to drive the electrostatic gun 71 to rotate left or right. In some embodiments, the rotating connector 25 is a ball socket joint. In some embodiments, the rotating connector 25 is a spherical universal joint that can rotate in any direction.

[0055] As Figure 1As shown, the detection component 70 further includes an infrared rangefinder 73 disposed beside the electrostatic gun 71. The infrared rangefinder 73 is configured to provide a first measurement signal that indicates the distance between the infrared rangefinder 73 and the test point of the test sample 90. Specifically, the infrared rangefinder can emit infrared light toward the test point of the test sample 90, and the infrared light is reflected by the surface of the test sample 90 and returns to the infrared rangefinder 73. Based on the time from the emission of the infrared light to its reception by the infrared rangefinder 73 after reflection, the distance between the infrared rangefinder 73 and the test point of the test sample 90 can be calculated. Additionally, based on the relative positions of the infrared rangefinder 73 and the electrostatic gun 71, the distance between the infrared rangefinder 73 and the test point of the test sample 90 can be converted into the distance between the discharge electrode 72 of the electrostatic gun 71 and the test point of the test sample 90. Therefore, when testing each test point on the surface of the test sample 90, the automated electrostatic discharge test system 10 can determine whether the discharge electrode 72 of the electrostatic gun 71 maintains the same distance for discharging based on the first measurement signal.

[0056] In some embodiments, the infrared rangefinder 73 can emit multiple infrared light beams to detect the area near the test point on the surface of the test sample 90, thereby estimating the normal vector of the position of the surface of the test sample 90 at the test point. Based on the detection results, the infrared rangefinder 73 can provide a second measurement signal that indicates whether the discharge electrode 72 of the electrostatic gun 71 is substantially perpendicular to the surface of the test sample 90. Therefore, the second measurement signal can help the automated electrostatic discharge test system 10 determine whether the discharge electrode 72 of the electrostatic gun 71 discharges perpendicular to the surface of the test sample 90. Discharging perpendicular to the surface of the test sample 90 can improve the repeatability of the test results.

[0057] As Figure 1 shown, the detection component 70 further includes a camera 75 disposed beside the electrostatic gun 71. The camera 75 is configured to take videos. Specifically, during the process of the automated electrostatic discharge test system 10 performing an electrostatic discharge test operation, the camera 75 is configured to record a video of the movement process of the electrostatic gun 71. In some embodiments, the operation of the displacement mechanism 23 is controlled by a computer program. The video of the movement process of the electrostatic gun 71 recorded by the camera 75 may include the path of the movement of the electrostatic gun 71, which is beneficial for confirming whether the displacement mechanism 23 and the electrostatic gun 71 move along the paths designed by the program (for example: analyzing the video recorded by the camera 75 to obtain the actual movement paths of the displacement mechanism 23 and the electrostatic gun 71, and then comparing the actual movement paths with the paths designed by the program to determine whether the actual movement paths are incorrect). In some embodiments, the video of the movement process of the electrostatic gun 71 recorded by the camera 75 may include the discharge position of the electrostatic gun 71, which is beneficial for confirming whether the electrostatic gun 71 discharges at the correct position.

[0058] As Figure 1 shown, the detection component 70 further includes a nozzle-type static eliminator 77 disposed beside the electrostatic gun 71. The nozzle-type static eliminator 77 is configured to eliminate the residual static electricity on the test sample 90 after the electrostatic gun 71 discharges when continuously detecting multiple test points, so as to prevent the residual static electricity from affecting the results of the next test. For example, after the electrostatic gun 71 completes one discharge and before the next discharge, the nozzle-type static eliminator 77 can spray positive and negative ions towards the test point on the test sample 90 to eliminate the residual static electricity on the test sample 90. In some embodiments, the nozzle-type static eliminator 77 is configured to eliminate the residual static electricity on the test sample 90 and the discharge electrode 72 of the electrostatic gun 71. For example, when performing a test item of contact discharge, the discharge electrode 72 of the electrostatic gun 71 contacts the test point on the test sample 90. Therefore, when the nozzle-type static eliminator 77 sprays positive and negative ions towards the test point, it can simultaneously eliminate the residual static electricity on the test sample 90 and the discharge electrode 72 of the electrostatic gun 71.

[0059] As Figure 1 shown, in some embodiments, the infrared rangefinder 73, the camera 75, and the nozzle-type static eliminator 77 are directly disposed at the end of the vertical moving member 33 of the three-coordinate gantry robot arm 30, that is, adjacent to the electrostatic gun 71 and disposed at the same end of the vertical moving member 33. In this way, the infrared rangefinder 73, the camera 75, and the nozzle-type static eliminator 77 can move along with the electrostatic gun 71 and perform the above functions during the electrostatic discharge test operation.

[0060] Please refer to Figure 2 . Figure 2 FIG. is a schematic perspective view of an automated electrostatic discharge test system according to another embodiment of the present disclosure. Compared with the foregoing embodiment, the automated electrostatic discharge test system 11 of this embodiment further includes a bracket 56, and the bracket 56 is fixed on the three-coordinate gantry robot arm 30 (for example: fixed at the end of the vertical moving member 33), and the infrared rangefinder 73, the camera 75, and the nozzle-type static eliminator 77 are disposed on the bracket 56. The infrared rangefinder 73, the camera 75, and the nozzle-type static eliminator 77 disposed on the bracket 56 can move along with the electrostatic gun 71 and perform the above functions during the electrostatic discharge test operation.

[0061] Please refer to Figure 3 . Figure 3FIG. 0 is a functional block diagram of an automated electrostatic discharge test system according to an embodiment of the present disclosure. The automated electrostatic discharge test system 10 or 11 further includes a central control electronic device 50, and the central control electronic device 50 is communicatively connected to each component of the displacement mechanism 23 and the detection component 70. Specifically, the central control electronic device 50 is connected to each component of the displacement mechanism 23 and the detection component 70 through signal lines, enabling the central control electronic device 50 to send control signals to control the operation of these components or receive information from these components.

[0062] In some embodiments, when the automated electrostatic discharge test system 10 or 11 performs an electrostatic discharge test operation, first, the central control electronic device 50 establishes a coordinate system and a rotation axis, and obtains the coordinates of one or more test points (for example: the coordinates of a specific position on the test sample 90) and other test parameters (for example: the test voltage). Then, the automated electrostatic discharge test system 10 or 11 can sequentially perform electrostatic discharge tests on each test point, including the following steps: (1) The central control electronic device 50 sends a first control signal to the displacement mechanism 23, and the displacement mechanism 23 receives the first control signal and moves the electrostatic gun 71 to the first or the next test point according to the first control signal; (2) The infrared rangefinder 73 measures the test sample 90 and generates a first measurement signal. The central control electronic device 50 receives the first measurement signal from the infrared rangefinder 73 and determines whether the discharge electrode 72 of the electrostatic gun 71 maintains a preset test distance from the test point on the test sample 90 according to the first measurement signal. If the distance between the discharge electrode 72 of the electrostatic gun 71 and the test point on the test sample 90 is not the preset test distance, the central control electronic device 50 generates a second control signal, and the rotating connector 25 receives the second control signal and rotates the electrostatic gun 71 according to the second control signal (which may include tilting in the vertical plane and / or rotating in the horizontal plane) so that the discharge electrode 72 of the electrostatic gun 71 is aligned with the test point on the test sample 90 and is at a preset test distance from the test point on the test sample 90; (3) The central control electronic device 50 sends a third control signal to the electrostatic gun 71, and the electrostatic gun 71 discharges after receiving the third control signal; (4) After the electrostatic gun 71 finishes discharging, the central control electronic device 50 sends a fourth control signal to the nozzle type electrostatic eliminator 77, and the nozzle type electrostatic eliminator 77 ejects positive and negative ions to eliminate the residual static electricity on the test sample 90 (or the test sample 90 and the discharge electrode 72 of the electrostatic gun 71); (5) The central control electronic device 50 determines whether all test points have been tested. If not all test points have been tested, return to the previous step (1). Additionally, during the process, the camera 75 records the video of the movement process of the electrostatic gun 71 and transmits the video signal back to the central control electronic device 50.

[0063] In some embodiments, after completing the electrostatic discharge test operation, the central control electronic device 50 can analyze the video captured by the camera 75 and determine the actual path of the electrostatic gun 71 based on the video. The central control electronic device 50 is also configured to determine whether the actual path matches the predetermined path of the electrostatic gun 71 and whether the electrostatic gun 71 discharges at the correct position, so as to understand whether the electrostatic discharge test operation is correctly executed.

[0064] In some embodiments, during the electrostatic discharge test operation, the central control electronic device 50 is configured to obtain the real-time video of the electrostatic gun 71 from the camera 75 and determine whether the electrostatic gun 71 deviates from the predetermined path and whether the electrostatic gun 71 discharges at the correct position based on the real-time video. In some embodiments, when the central control electronic device 50 determines that the electrostatic gun 71 deviates from the predetermined path or discharges at an incorrect position, the central control electronic device 50 is configured to stop the electrostatic discharge test operation. In some embodiments, when the central control electronic device 50 determines that the electrostatic gun 71 deviates from the predetermined path or discharges at an incorrect position, the central control electronic device 50 is configured to issue a warning.

[0065] In some embodiments, the central control electronic device 50 is configured to confirm whether the electrostatic discharge test is correctly executed based on the distance information measured by the infrared rangefinder 73 (for example: included in the above first measurement signal). Specifically, in the contact discharge test mode, the central control electronic device 50 can confirm that the discharge electrode 72 of the electrostatic gun 71 contacts the test point, and in the air discharge test mode, the central control electronic device 50 can confirm that the distance between the discharge electrode 72 of the electrostatic gun 71 and the (multiple) test points remains at the preset test distance. In some embodiments, the central control electronic device 50 is configured to ensure that the electrostatic gun 71 does not hit the test sample 90 and cause damage to the test sample 90 based on the distance information measured by the infrared rangefinder. In some embodiments, the central control electronic device 50 is configured to ensure that the electrostatic gun 71 detects the test points of the curved / solid / irregular sample along the curved / solid / irregular path and performs the electrostatic discharge test at the same test distance for multiple test points based on the distance information measured by the infrared rangefinder.

[0066] In some embodiments, when the central control electronic device 50 determines that the electrostatic gun 71 is not at the preset test distance from the test point on the test sample 90, the central control electronic device 50 is configured to stop the electrostatic discharge test operation. By using the infrared rangefinder 73, it is possible to keep the electrostatic gun 71 performing the electrostatic discharge test at the predetermined test distance for each test point. Compared with using a pressure sensor (disclosed in the patent document CN114675115A), it can better prevent the electrostatic gun 71 from hitting the surface of the test sample 90 and avoid damage to the test sample 90.

[0067] Please refer toFigure 4 The automated electrostatic discharge test system 10 or 11 of the present disclosure can perform an electrostatic discharge test operation along the curved surface 96 of the test sample 90. The three-coordinate gantry robot arm 30 is configured to move the electrostatic gun 71 along the curved surface 96. During this process, the central control electronic device 50 controls the rotation joint 25 to rotate the electrostatic gun 71 according to the first measurement signal provided by the infrared rangefinder 73, so that the discharge electrode 72 of the electrostatic gun 71 is aligned with the test point of the test sample 90 and performs a discharge while maintaining a fixed distance from each test point. When the electrostatic gun 71 stays at each test point and is ready to discharge, the position of the electrostatic gun 71 can be corrected by the rotation joint 25 to ensure that the discharge electrode 72 of the electrostatic gun 71 is indeed aligned with the test point and performs a discharge while maintaining a fixed distance from each test point.

[0068] As Figure 4 shown, in some embodiments, the three-coordinate gantry robot arm 30 is configured to move the electrostatic gun 71 along the curved surface 96. During this process, the central control electronic device 50 controls the rotation joint 25 to rotate the electrostatic gun 71 according to the second measurement signal provided by the infrared rangefinder 73, so that the discharge electrode 72 of the electrostatic gun 71 is perpendicular to the curved surface 96. When the electrostatic gun 71 stays at each test point and is ready to discharge, the direction of the electrostatic gun 71 can be corrected by the rotation joint 25 to ensure that the discharge electrode 72 of the electrostatic gun 71 is indeed perpendicular to the curved surface 96.

[0069] Please refer to Figure 5 。 Figure 5 FIG. is a schematic perspective view of an automated electrostatic discharge test system according to another embodiment of the present disclosure. In the automated electrostatic discharge test system 12 of this embodiment, the bracket 56 for carrying the infrared rangefinder 73, the camera 75, and the nozzle-type electrostatic eliminator 77 is fixed on the electrostatic gun 71. Therefore, the infrared rangefinder 73, the camera 75, and the nozzle-type electrostatic eliminator 77 can also rotate together with the electrostatic gun 71.

[0070] In addition, in some embodiments, the automated electrostatic discharge test system 12 may further include a rotating horizontal coupling platform 53. The rotating horizontal coupling platform 53 is disposed on the work platform 20, and the rotating horizontal coupling platform 53 is configured to carry a small test sample (not shown in the figure) and drive the small test sample to rotate. In some embodiments, the rotating horizontal coupling platform 53 can drive the test sample to rotate 360 degrees parallel to the work platform 20. By combining the rotation angle of the rotating horizontal coupling platform 53 with the displacement mechanism 23, it is possible to better align the test points for electrostatic discharge testing, especially for the test points of curved surface / three-dimensional / irregular test samples.

[0071] It should be noted that if the test sample is a larger object, the rotating horizontal coupling platform 53 can be temporarily moved away to allow the test sample to be placed directly on the work platform 20. The rotating horizontal coupling platform 53 can be controlled by a central control electronic device (such as the aforementioned central control electronic device 50). Specifically, the rotating horizontal coupling platform 53 can be connected to the central control electronic device through a signal line. The central control electronic device is configured to send a fifth control signal to the rotating horizontal coupling platform 53. The rotating horizontal coupling platform 53 receives the fifth control signal and rotates to a specific angle according to the fifth control signal.

[0072] Please refer to Figure 6 In some embodiments, the electrostatic gun 71 can be tilted toward the surface of the test sample 90 to apply static electricity. Applying static electricity tilted toward the surface of the test sample 90 is more suitable for irregular or curved sample surfaces, especially places such as the connection holes (gaps, holes) of electronic products that are easily attacked by electrostatic discharge.

[0073] In summary, the automated electrostatic discharge test system disclosed herein is equipped with a three-coordinate gantry robot and a rotating connector. After setting the test point, the system can automatically move the electrostatic gun to the preset test point for testing. The system also includes an infrared rangefinder that can provide a signal to help the system adjust the direction of the electrostatic gun to ensure that the electrode of the electrostatic gun is aligned with the test point of the test sample for discharge. The system also includes a nozzle-type static eliminator, which moves with the electrostatic gun to facilitate the removal of residual static electricity on the test sample (or the discharge electrode and the test sample) after each discharge of the electrostatic gun. The system also includes a camera that can record a video of the movement of the electrostatic gun for subsequent analysis.

[0074] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. An automated electrostatic discharge test system, characterized in that, it includes: A working platform, which is electrically insulated and used to carry a test sample; A displacement mechanism, including: A three-coordinate gantry robot arm, which is arranged on the working platform; and A rotating connecting piece, which is arranged on the three-coordinate gantry robot arm and provides an alignment function within a multi-angle range; and A detection component, which is arranged on the displacement mechanism and includes: An electrostatic gun, which is arranged on the rotating connecting piece and includes a discharge electrode; An infrared rangefinder, configured to provide a first measurement signal, and the first measurement signal shows the distance between the discharge electrode and a test point of the test sample; A camera, configured to record a video of the moving process of the electrostatic gun; And A nozzle-type static eliminator, configured to eliminate the residual static electricity on the test sample after the electrostatic gun discharges.

2. The automated electrostatic discharge test system according to claim 1, characterized in that, The three-coordinate gantry robot arm includes a first horizontal moving part, a second horizontal moving part and a vertical moving part. The first horizontal moving part includes two feet movably connected to the working platform and a crossbeam part connected between the two feet. The second horizontal moving part is movably arranged on the crossbeam part, the vertical moving part is movably arranged on the second horizontal moving part, and the rotating connecting piece is arranged at the end of the vertical moving part.

3. The automated electrostatic discharge test system according to claim 1, characterized in that, It further includes a central control electronic device, which is configured to receive the first measurement signal and generate a control signal according to the first measurement signal. The rotating connecting piece is configured to receive the control signal and rotate the electrostatic gun according to the control signal, so that the discharge electrode of the electrostatic gun is aligned with the test point and is at a preset test distance from the test point.

4. The automated electrostatic discharge test system according to claim 1, characterized in that, It further includes a central control electronic device, which is configured to determine an actual path of the electrostatic gun according to the video and determine whether the actual path conforms to a predetermined path of the electrostatic gun.

5. The automated electrostatic discharge test system according to claim 1, characterized in that, It further includes a central control electronic device. During the process of an electrostatic discharge test operation, the central control electronic device is configured to obtain a real-time video from the camera and determine whether the electrostatic gun deviates from a predetermined path according to the real-time video.

6. The automated electrostatic discharge test system according to claim 5, characterized in that, When the central control electronic device determines that the electrostatic gun deviates from the predetermined path, the central control electronic device is configured to stop the electrostatic discharge test operation.

7. The automated electrostatic discharge test system according to claim 5, characterized in that, When the central control electronic device determines that the electrostatic gun deviates from the predetermined path, the central control electronic device is configured to issue a warning.

8. The automated electrostatic discharge test system according to claim 1, characterized in that, Further includes a rotating horizontal coupling platform which is disposed on the working platform, and the rotating horizontal coupling platform is configured to carry the test sample and drive the test sample to rotate.

9. The automated electrostatic discharge test system according to claim 1, wherein, the infrared rangefinder is further configured to provide a second measurement signal, the second measurement signal indicating whether the discharge electrode is substantially perpendicular to a surface of the test sample, wherein the automated electrostatic discharge test system further includes a central control electronic device configured to control the rotating connecting member to rotate the electrostatic gun according to the second measurement signal so that the discharge electrode of the electrostatic gun is perpendicular to the surface of the test sample.

10. The automated electrostatic discharge test system according to claim 1, wherein, the rotating connecting member is a spherical universal joint.

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