Automatic interface compatibility testing equipment

Abstract

The invention discloses interface compatibility automatic test equipment, which comprises an equipment clamp, a four-axis motion mechanical arm and a cable matrix, and is characterized in that the equipment clamp is mounted on the four-axis motion mechanical arm and is used for placing and fixing tested equipment; the four-axis motion mechanical arm is used for moving the equipment clamp, so that the interface position of the tested equipment is matched with the test interface position in the cable matrix; and the cable matrix comprises a plurality of different types of test interfaces and is used for carrying out plugging test on the interfaces of the tested equipment. According to the invention, the manual test cost can be reduced, the test efficiency is improved, the interference of human factors is avoided, and the test result is more accurate.

Description

Technical Field

[0001] The embodiments of the present application relate to the field of interface testing technology, and in particular to an interface compatibility automated testing device. Background Art

[0002] Interface compatibility testing is a test that verifies the communication between hardware devices, aiming to ensure the interoperability between various hardware interfaces so that they can be seamlessly connected and work properly. The test content includes the interface between hardware and external devices, such as data cables, sockets, etc., to avoid poor contact caused by different plug-in and unplug.

[0003] Interface compatibility testing is crucial for laptops because it is directly related to the durability of the interface, performance stability, and product reliability. Conducting interface compatibility testing can avoid problems that may cause hardware devices to not work properly, such as data transmission errors, communication interruptions, and even device damage, which will seriously affect user experience, reduce product reputation, and increase the cost of after-sales maintenance. Therefore, conducting interface compatibility testing is a crucial step before hardware devices are put on the market.

[0004] At the current stage, testing is mainly manual testing, which requires a lot of human resources, has high labor costs, low testing efficiency, and cannot quickly complete a large amount of testing work. Moreover, manual testing relies on the operation and judgment of the tester, which can easily lead to inaccurate test results.

[0005] However, most of the current automated tests can only perform plug-in tests on a single interface, and cannot perform diversified tests on different interfaces. Therefore, it is urgent to design a new technical solution to solve the defects under the current technical conditions. Summary of the invention

[0006] In view of this, an embodiment of the present application provides an interface compatibility automated testing device that can perform diversified automated testing of different interfaces, and can solve the aforementioned problems of high manual testing costs and the inability of automated testing to perform multi-interface testing.

[0007] According to an embodiment of the present application, an interface compatibility automated testing device is provided, comprising: a device fixture, a four-axis motion robot arm, and a cable matrix, wherein:

[0008] The device fixture is installed on the four-axis motion robot arm and is used to place and fix the device under test;

[0009] The four-axis motion robot arm is used to move the device fixture so that the interface position of the device under test matches the test interface position in the cable matrix;

[0010] The cable matrix includes a plurality of different types of test interfaces, which are used to perform plug-in and pull-out tests on interfaces of the device under test.

[0011] In some exemplary embodiments, the four-axis motion robot arm comprises: a first robot arm, a second robot arm, a third robot arm, and a rotating device, wherein:

[0012] The first mechanical arm, the second mechanical arm, and the rotating device are used to control the left and right, up and down movement and rotation of the device fixture to align the tested interface of the device under test with the test interface of the cable matrix;

[0013] The third mechanical arm is used to control the device fixture to move forward and backward, so that the interface of the device under test is close to the test interface in the cable matrix, and perform plug-in test on the device under test.

[0014] In some exemplary embodiments, the second mechanical arm includes two longitudinal axis moving devices, which are arranged in parallel at both ends of the device and are used to control the up and down movement of the tested device;

[0015] The first mechanical arm is vertically arranged on the two longitudinal axis moving devices, and is used to control the left and right movement of the tested device;

[0016] The rotating device is used to control the rotation of the device under test;

[0017] Wherein, the third mechanical arm is arranged on the first mechanical arm, and the rotating device is arranged on the third mechanical arm.

[0018] In some exemplary embodiments, the rotating device includes an electrically controlled rotating table and a manual tilting table; wherein,

[0019] The electric-controlled rotating table is driven by a motor and is used to automatically adjust the rotation angle of the equipment fixture;

[0020] The manual tilting platform is manually tilted and adjusted by the user, and is used to quickly adjust the rotation angle of the equipment fixture.

[0021] In some exemplary embodiments, the device further includes a first camera, a second camera, and a third camera, wherein:

[0022] The first camera is installed on the cable matrix and is used to photograph the interface position of the device under test during calibration;

[0023] The second camera is installed under the equipment fixture to capture the test interface position of the cable matrix;

[0024] The third camera is placed above the fixture of the device under test and is used to photograph the keyboard of the device under test.

[0025] In some exemplary embodiments, the device further comprises a first light source and a second light source, wherein:

[0026] The first light source is located in front of the first camera and is used to illuminate the reflective color calibration block of the device under test during calibration;

[0027] The second light source is located in front of the second camera and is used to illuminate the test interface in the cable matrix.

[0028] In some exemplary embodiments, the device further comprises a base for mounting the camera and the light source, wherein the base is provided with a slide groove, and a slider is mounted on the slide groove;

[0029] The first camera is on the slider and can move forward and backward on the slide slot along with the slider;

[0030] The first light source is located at the front end of the base;

[0031] The slider is provided with a position adjustment component and a locking component; wherein,

[0032] The position adjustment component is used to adjust the position of the slider so that the first camera and the first light source reach positions that meet the test requirements;

[0033] The locking component is used to fix and lock the first camera.

[0034] In some exemplary embodiments, the cable matrix includes a cable fixture for placing different types of test interfaces;

[0035] The cable clamp comprises a cable slot and a plug placement slot; wherein,

[0036] The cable trough is used to install the cable of the test interface;

[0037] The plug placement slot is used for placing the test interface.

[0038] In some exemplary embodiments, the plugging and unplugging portion of the test interface is located outside the plug placement slot and is fixed by a baffle and a screw.

[0039] In some exemplary embodiments, a synchronization structure is provided at the rear of the cable clamp, including a push rod assembly and a slide rail assembly;

[0040] The push rod assembly is used to push the cable clamp to move forward and backward;

[0041] The slide rail assembly is used to limit and guide the movement of the cable assembly.

[0042] In the embodiment of the present application, the interface of the device under test and the test interface of the cable matrix are first calibrated through the combination of a camera and a light source, and then the device under test is brought close to the test interface through a four-axis motion robot arm to perform a plug-in test on the device under test. The interface compatibility automation test equipment described in the embodiment of the present application is used to perform interface testing, and multiple interface tests can be performed, which reduces the cost of manual testing, improves test efficiency, avoids interference from human factors, and makes the test results more accurate. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings required for use in the embodiments or the prior art description are briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention, and for ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0044] Figure 1 The overall structure diagram of the interface compatibility automation test device according to the embodiment of the present application is shown;

[0045] Figure 2 A schematic diagram showing the composition structure of an interface compatibility automation test device according to an embodiment of the present application is shown;

[0046] Figure 3 A schematic diagram of the structure of the device fixture of an embodiment of the present application is shown;

[0047] Figure 4 A schematic diagram showing the positional relationship between the standby fixture and the four-axis motion robot arm in an embodiment of the present application is shown;

[0048] Figure 5 A schematic diagram showing the structure of the components of the third mechanical arm according to an embodiment of the present application is shown;

[0049] Figure 6 A schematic diagram of the disassembled structure of the components on the third mechanical arm of an embodiment of the present application is shown;

[0050] Figure 7 A front view of a cable matrix according to an embodiment of the present application is shown;

[0051] Figure 8 A schematic diagram of the cable clamp structure of an embodiment of the present application is shown;

[0052] Fig. 9 A schematic diagram of the structure of the position of the first camera in an embodiment of the present application is shown;

[0053] Fig.10 A schematic diagram showing the position relationship between the first camera and the first light source in an embodiment of the present application is shown.

[0054] Explanation of the accompanying drawings: four-axis motion robot arm 100, first robot arm 1, second robot arm 2, third robot arm 3, rotating device 4, equipment clamp 5, cable matrix 6, first light source 7, first camera 8, horizontal knob 9, longitudinal knob 10, electromagnet 11, electromagnetic pen head 12, locking component 13, position adjustment component 14, second light source 15, second camera 16, third camera 17, manual tilting table 18, electric-controlled rotating table 19, part linear guide 20, cable clamp 21, cable groove 31, plug placement groove 32, push rod assembly 34, slide rail assembly 35, base 41, slide groove 42, slider 43. DETAILED DESCRIPTION

[0055] Exemplary embodiments will be described in detail herein, examples of which are shown in the accompanying drawings. When the following description refers to the drawings, the same numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present disclosure. Instead, they are merely examples of devices and methods consistent with some aspects of the present disclosure as detailed in the appended claims.

[0056] The essence of the technical solution of the embodiment of the present application is explained in detail below with reference to the accompanying drawings.

[0057] Figure 1 The overall structure diagram of the interface compatibility automation test device according to the embodiment of the present application is shown. Figure 2 The schematic diagram of the structure of the interface compatibility automation test equipment of the embodiment of the present application is shown as follows: Figure 1 and Figure 2 As shown, an interface compatibility automation test device according to an embodiment of the present application includes: a device fixture 5, a four-axis motion robot arm 100, and a cable matrix 6, wherein:

[0058] The device fixture 5 is installed on the four-axis motion robot arm 100 and is used to place and fix the device under test;

[0059] Figure 3 A schematic diagram of the device fixture structure of an embodiment of the present application is shown. Figure 4 A schematic diagram showing the positional relationship between the device fixture and the four-axis motion robot arm of an embodiment of the present application is shown. Figure 3 and Figure 4 As shown, the device fixture 5 includes: a horizontal knob 9, a vertical knob 10, an electromagnet 11, and an electromagnetic pen head 12, wherein:

[0060] There are two transverse knobs 9 on the device fixture 5, which are used to fix the device under test laterally. The transverse fixing part of the device fixture 5 is moved by turning the transverse knob 9, so that the device fixture 5 fixes the device under test laterally.

[0061] The longitudinal knob 10 is a longitudinal knob on the device fixture 5, which is used to longitudinally fix the device under test. The longitudinal fixing component of the device fixture 5 is moved by turning the longitudinal knob 10, so that the device fixture longitudinally fixes the device under test.

[0062] Electromagnet 11, used for simulating the opening and closing of a notebook;

[0063] The electromagnetic pen head 12 is used to click the power button to turn on or off the device under test.

[0064] The four-axis motion robot arm 100 is used to move the device fixture 5 so that the interface position of the device under test matches the test interface position in the cable matrix 6;

[0065] In an exemplary embodiment, if Figure 2 and Figure 3 As shown in , the four-axis motion robot arm 100 includes a first robot arm 1, a second robot arm 2, a third robot arm 3, and a rotating device 4, wherein:

[0066] The first mechanical arm 1, the second mechanical arm 2, and the rotating device 4 are used to control the left and right, up and down movement and rotation of the device fixture 5 to align the tested interface of the device under test with the test interface of the cable matrix 6;

[0067] Specifically, the second robot arm 2 includes two longitudinal axis moving devices, namely Y-axis moving devices, which are arranged in parallel at both ends of the device and are used to control the tested device to move up and down with a Y-axis movement range of 0 to 1200 mm.

[0068] The first robot arm 1 is vertically arranged on two longitudinal axis moving devices, and is an X-axis moving device, which is used to control the left and right movement of the tested device, and the X-axis movement range is 0 to 1350 mm.

[0069] The third robot arm 3 is a Z-axis moving device, which is used to control the forward and backward movement of the device fixture 5 so that the interface of the device under test is close to the test interface in the cable matrix 6 to perform plug-in test on the device under test. The Z-axis movement range is 0 to 150 mm.

[0070] The rotating device 4 is a U-axis rotating device, which is used to control the rotation of the device under test, so as to facilitate the rotation angle of the device under test to the interface surface to be tested. The U-axis movement range is -90° to 90°.

[0071] In an exemplary embodiment, the Y-axis moving device is arranged parallel to both ends of the device, while the X-axis moving device is arranged vertically on the two Y-axis moving devices and is driven by the Y-axis moving devices to move along the Y-axis direction. The Z-axis moving device is placed above the X-axis moving device and can move left and right on the X-axis. A U-axis rotating device and a device fixture 5 are installed above the Z-axis moving device. The Z-axis moving device can move the device fixture 5 back and forth for plug-in and unplug testing, and the U-axis rotating device can rotate the device under test, which is convenient for testing different interfaces at the left and right ends of the device under test.

[0072] Figure 5 FIG. 1 shows a schematic diagram of the structure of the components of the third mechanical arm of the embodiment of the present application. Figure 6 FIG. 2 shows a schematic diagram of the disassembled structure of each component on the third mechanical arm of the embodiment of the present application. Figure 5 and Figure 6 As shown, the device also includes a linear guide rail 20, as shown in FIG. Figure 5 and Figure 6 As shown, each component on the third robot arm is installed on the linear guide rail 20, and the linear guide rail 20 drives the components to move.

[0073] The rotating device 4 includes an electrically controlled rotating platform 19 and a manually tilting platform 18; wherein:

[0074] The electric control rotating table 19 is driven by a motor and is used to automatically adjust the rotation angle of the device fixture 5; there is a light hole in the center of the tabletop of the electric control rotating table 19, which can be used flat or in combination with other manual tilting tables. It adopts a precision worm gear transmission and a rotating shaft system design, with high adjustment accuracy and small backlash. It can rotate in any forward and reverse direction, and can control the rotation of the entire device fixture, thereby rotating the device under test, so that the interfaces on both sides of the notebook can be tested.

[0075] The manual tilting platform 18 is manually tilted by the user and is used to quickly adjust the rotation angle of the device fixture 5. The upper and lower parts of the manual tilting platform 18 are provided with connection holes with standard hole spacing, which can adjust the angle of the device under test. The manual tilting platform 18 is suitable for occasions where fast adjustment is required but high automation is not required.

[0076] In an exemplary embodiment, the third robotic arm 3 is disposed on the first robotic arm 1 , and the rotating device 4 is disposed on the third robotic arm 3 .

[0077] Figure 7 The front view of the cable matrix of the embodiment of the present application is shown as follows: Figure 7As shown, the cable matrix 6 includes multiple different types of test interfaces for plugging and unplugging the interfaces of the device under test. In an exemplary embodiment, each interface number of the cable matrix 6 is calibrated in a "row-column" manner, and different test interfaces are placed in the cable matrix 6, including a USB Type C port, a USB Type A port, an HDMI port, an audio 3.5mm headphone port, and an RJ45 port.

[0078] In an exemplary embodiment, the cable matrix 6 includes a cable fixture 21 for placing different types of test interfaces;

[0079] Figure 8 Schematic diagram of the cable clamp structure of the embodiment of the present application, such as Figure 8 As shown, the cable clamp 21 includes a cable slot 31 and a plug placement slot 32; wherein the cable slot 31 is used to install the cable of the test interface, and the wire of the test interface is placed in the groove of the cable slot 31; the plug placement slot 32 is used to place the test interface. The plug-in and unplugging part of the test interface is located outside the plug placement slot 32, and is fixed on the top by a baffle and screws, so that the interface part is placed stably and horizontally, which is convenient for plug-in and unplugging testing, avoiding plug-in failure caused by uneven placement of the interface, which affects the test results.

[0080] The rear part of the cable clamp 21 is provided with a synchronization structure, such as Figure 8 As shown, the synchronization structure includes a push rod assembly 34 and a slide rail assembly 35;

[0081] The push rod assembly 34 is used to push the cable clamp 21 forward and backward, and the entire row of cable clamps will automatically be pushed out to a certain insertion and extraction depth to prevent the device under test from touching the cable clamps in other rows, thereby damaging the device under test and affecting the test results.

[0082] The slide rail assembly 35 is used to limit and guide the movement of the cable assembly 34 to make the movement more stable and reliable.

[0083] In an exemplary embodiment, the device further comprises a first camera 8, a second camera 16, a third camera 17, Fig. 9 FIG. 1 shows a schematic diagram of the structure of the first camera in an embodiment of the present application. Fig. 9 As shown, the first camera 8 is installed on the cable matrix 6 and is a notebook interface calibration high-definition camera used to photograph the interface position of the device under test during calibration.

[0084] like Figure 5 and Figure 6 As shown, the second camera 16 is installed below the equipment fixture 5 on the Z axis and is a cable calibration high-definition camera used to photograph the position of the test interface that needs to be inserted into the cable matrix 6.

[0085] like Figure 5 and Figure 6 As shown, the third camera 17 is placed above the device under test fixture 5 and is a high-definition camera used to photograph the keyboard of the device under test.

[0086] In an exemplary embodiment, the device further comprises a first light source 7, a second light source 15, Fig.10 A schematic diagram showing the position relationship between the first camera and the first light source in an embodiment of the present application is shown. Fig.10 As shown:

[0087] The first light source 7 is installed in the cable matrix 6 and located in front of the first camera. It is an LED light source and is used to illuminate the reflective color calibration block and interface position of the device under test during calibration.

[0088] The second light source 15 is installed on the Z axis and located in front of the second camera. It is an LED light source and is used to illuminate the test interface position in the cable matrix 6 where the tester needs to insert the test interface during calibration.

[0089] In an exemplary embodiment, the device further comprises a base 41 for mounting a camera and a light source, wherein a slide groove 42 is provided on the base, and a slider 43 is mounted on the slide groove;

[0090] The first camera 8 is located on the slider 43 and can move forward and backward on the slide slot 42 along with the slider 43;

[0091] The first light source 7 is located at the front end of the base 41;

[0092] The slider 42 is provided with a position adjustment component 14 and a locking component 13;

[0093] The position adjustment component 14 is a large knob for adjusting the position of the slider 43 so that the first camera 8 and the first light source 7 reach the positions expected by the tester and meet the test requirements, so that the interface position can be clearly seen in the camera preview.

[0094] The locking components 13 are two small knobs for fixing and locking the first camera.

[0095] In the embodiment of the present application, when performing an interface test, the device fixture 5 is first moved to the calibration point: the device fixture is moved to the vicinity of the last cable block of the 11th push rod assembly, that is, in front of the calibration block, and the push rod assembly 34 pushes the cable fixture 21 to a required plug-in depth, and appropriate adjustments are made so that the device under test can be located directly in front of the calibration block without interference.

[0096] Start calibration: the Z axis moves forward slowly until the device under test contacts the calibration block with a certain pressure, calculates the distance between the device under test and the first camera 8 through Z axis calibration, moves the device under test to the vicinity of the first camera 8, and turns on the camera preview of the first camera 8.

[0097] Calibrate the interface: insert the calibration plug-in into the test interface of the device under test, adjust the device position, observe whether the interface is in the purple frame in the center of the screen in the image display area of ​​the first camera 8, calibrate the interface position of the plug-in and save the configuration information.

[0098] Cable calibration: Right-click the cable that needs to be reconfigured and recalibrate. Similar to the automatic recognition process of the first camera 8, the second camera 16 moves to the appropriate position and starts automatic recognition.

[0099] Calibrate Z-axis depth difference: To reconfigure the Z-axis depth difference of the cable, first right-click the corresponding cable and clear the Z-axis calibration depth difference; insert the plug-in and observe whether it is inserted correctly. When it is inserted correctly, the insertion depth is automatically saved; if it is not inserted correctly, clear the Z-axis calibration depth difference, reinsert the plug-in and observe again until the insertion depth is saved after the plug-in is correctly inserted.

[0100] In the embodiment of the present application, the first camera 8 is responsible for calibrating the test interface position of the device under test. Due to the different sizes of the devices under test (such as laptop computers), the focus and field of view of the first camera 8 will be different. Therefore, before calibration, it is necessary to calibrate the Z-axis depth difference first, set the Z-axis position, and keep it fixed. The first camera 8 searches for the corresponding interface position and records the physical coordinate information P1.

[0101] The second camera 16 is responsible for calibrating the position of the cable clamp 21. According to a preset program, the second camera 16 reaches the designated position of the cable clamp 21 to calibrate the cable and record the position information P2.

[0102] After entering the position information of P1 and P2, the actual insertion coordinates of the interface under test can be obtained.

[0103] In the embodiment of the present application, the electrically controlled rotating table 19 and the manual tilting table 18 are used in combination. According to the different testing requirements of the tester, the rotation of the fixture of the device under test is achieved by the electrically controlled rotating table 19, and the manual tilting table 18 is used to perform rapid angle adjustments, thereby improving the quality of the test and work efficiency.

[0104] When performing interface testing, the entire column of the cable matrix 6 that needs to be plugged in and out will be automatically and slowly moved out to the device under test to facilitate the plug-in and out test of the device and prevent it from touching the cable matrix in other columns.

[0105] When resetting the device, it is necessary to pay attention to the inward folding of the test device screen to prevent interference with the edge area of ​​the device. When placing the laptop for plug-in test, it is necessary to pay attention to the vertical screen slightly outward from the keyboard to prevent the laptop screen from colliding with the device cable during plug-in test. The colored positioning block is used to identify the interface of the device under test after Z-axis calibration. The colored positioning block needs to be pulled out before the formal interface test.

[0106] In summary, the interface compatibility automation test equipment of the present invention includes a four-axis mechanical arm, a fixture of the device under test, a cable matrix, three high-definition cameras and two LED light sources. The first camera is placed in the cable matrix to shoot the interface position of the device under test; the second camera is placed under the fixture of the device under test to shoot the interface position in the cable matrix; the third camera is placed above the fixture of the device under test to shoot the keyboard of the device under test. The first light source is placed in front of the first camera in the cable matrix to illuminate the reflective color calibration block during calibration, and the second light source is placed in front of the second camera under the fixture to illuminate the interface in the cable matrix. Before performing the interface test, the interface under test is first calibrated, and then the device under test is brought close to the test interface through the four-axis motion mechanical arm to perform a plug-in test on the device under test. Through the interface compatibility automation test equipment described in this application, the USB Type C port, USB Type A port, HDMI port, audio 3.5mm headphone port and RJ45 port of the laptop can be tested, and the corresponding power supply simulation, box cover opening simulation, key wake-up and other detection auxiliary means can be realized through the electromagnet and the electromagnetic pen head. It reduces manual testing costs, improves testing efficiency, avoids interference from human factors, and makes test results more accurate.

[0107] It should be understood that "one embodiment" or "an embodiment" mentioned throughout the specification means that specific features, structures or characteristics related to the embodiment are included in at least one embodiment of the present invention. Therefore, "in one embodiment" or "in an embodiment" appearing throughout the specification does not necessarily refer to the same embodiment. In addition, these specific features, structures or characteristics can be combined in one or more embodiments in any suitable manner. It should be understood that in various embodiments of the present invention, the size of the sequence number of the above-mentioned processes does not mean the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiment of the present application. The above-mentioned sequence numbers of the embodiments of the present application are for description only and do not represent the advantages and disadvantages of the embodiments.

[0108] It should be noted that, in this article, the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "comprises a ..." does not exclude the existence of other identical elements in the process, method, article or device including the element.

[0109] In the several embodiments provided in this application, it should be understood that the disclosed devices and methods can be implemented in other ways. The device embodiments described above are only schematic. For example, the division of the units is only a logical function division. There may be other division methods in actual implementation, such as: multiple units or components can be combined, or can be integrated into another system, or some features can be ignored or do not exist.

[0110] The units described above as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units; some or all of the units may be selected according to actual needs to achieve the purpose of the present embodiment.

[0111] The above is only an embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art can easily think of changes or substitutions within the technical scope disclosed by the present invention, which should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. An interface compatibility automated testing device, characterized in that: include: Equipment fixture, four-axis motion robot, cable matrix, including: The device fixture is installed on the four-axis motion robot arm and is used to place and fix the device under test; The four-axis motion robot arm is used to move the device fixture so that the interface position of the device under test matches the test interface position in the cable matrix; The cable matrix includes a plurality of different types of test interfaces, which are used to perform plug-in and pull-out tests on interfaces of the device under test.

2. The interface compatibility automated testing device according to claim 1, characterized in that: The four-axis motion robot arm comprises a first robot arm, a second robot arm, a third robot arm, and a rotating device, wherein: The first mechanical arm, the second mechanical arm, and the rotating device are used to control the left and right, up and down movement and rotation of the device fixture to align the tested interface of the device under test with the test interface of the cable matrix; The third mechanical arm is used to control the device fixture to move forward and backward, so that the interface of the device under test is close to the test interface in the cable matrix, and perform plug-in test on the device under test.

3. The interface compatibility automated testing device according to claim 2, characterized in that: The second mechanical arm includes two longitudinal axis moving devices, which are arranged in parallel at both ends of the device and are used to control the up and down movement of the tested device; The first mechanical arm is vertically arranged on the two longitudinal axis moving devices, and is used to control the left and right movement of the tested device; The rotating device is used to control the rotation of the device under test; Wherein, the third mechanical arm is arranged on the first mechanical arm, and the rotating device is arranged on the third mechanical arm.

4. The interface compatibility automated testing device according to claim 3, characterized in that: The rotating device includes an electrically controlled rotating platform and a manual tilting platform; wherein, The electric-controlled rotating table is driven by a motor and is used to automatically adjust the rotation angle of the equipment fixture; The manual tilting platform is manually tilted and adjusted by the user, and is used to quickly adjust the rotation angle of the equipment fixture.

5. The interface compatibility automated testing device according to claim 1, characterized in that: The device also includes a first camera, a second camera, and a third camera, wherein: The first camera is installed on the cable matrix and is used to photograph the interface position of the device under test during calibration; The second camera is installed under the equipment fixture to capture the test interface position of the cable matrix; The third camera is placed above the fixture of the device under test and is used to photograph the keyboard of the device under test.

6. The interface compatibility automated testing device according to claim 5, characterized in that: The device further comprises a first light source and a second light source, wherein: The first light source is located in front of the first camera and is used to illuminate the reflective color calibration block of the device under test during calibration; The second light source is located in front of the second camera and is used to illuminate the test interface in the cable matrix.

7. The interface compatibility automated testing device according to claim 6, characterized in that: The device also includes a base for mounting a camera and a light source, wherein a slide groove is provided on the base, and a slider is mounted on the slide groove; The first camera is on the slider and can move forward and backward on the slide slot along with the slider; The first light source is located at the front end of the base; The slider is provided with a position adjustment component and a locking component; wherein, The position adjustment component is used to adjust the position of the slider so that the first camera and the first light source reach positions that meet the test requirements; The locking component is used to fix and lock the first camera.

8. The interface compatibility automated testing device according to claim 1, characterized in that: The cable matrix includes a cable fixture for placing different types of test interfaces; The cable clamp comprises a cable slot and a plug placement slot; wherein, The cable trough is used to install the cable of the test interface; The plug placement slot is used for placing the test interface.

9. The interface compatibility automated testing device according to claim 8, characterized in that: The plugging and unplugging part of the test interface is located outside the plug placement slot and is fixed by a baffle and screws.

10. The interface compatibility automated testing device according to claim 9, characterized in that: The rear part of the cable clamp is provided with a synchronization structure, including a push rod assembly and a slide rail assembly; in The push rod assembly is used to push the cable clamp to move forward and backward; The slide rail assembly is used to limit and guide the movement of the cable assembly.

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