DBC automatic test workstation

Abstract

The utility model discloses a DBC automatic test workstation, which comprises a test mechanism, a movable truss and a machine table, the test mechanism comprises a first test station, a second test station and a third test station, and the first test station, the second test station and the third test station are all installed on the machine table. The two ends of the movable truss are installed on the two sides of the machine table, the moving path of the movable truss is arranged above the first testing station, the second testing station and the third testing station, the movable truss is used for testing the bonded DBC module, the equipment can integrate various testing machines, and the testing efficiency is improved. Detection items such as safety testing, static testing and dynamic testing are automatically completed according to program setting, different testing processes can be achieved by calling testing programs, meanwhile, the equipment has the function of recording and storing testing data, the testing items are flexibly configured, and the testing efficiency is remarkably improved.

Description

Technical Field

[0001] The utility model relates to the technical field of module test workstations, and in particular to a DBC automatic test workstation. Background Art

[0002] The DBC (Directed Bonding Copper) module substrate is composed of three layers of materials. The upper and lower layers are metal layers, and the middle layer is an insulating ceramic layer. Compared with ceramic substrates, DBC has better performance: it has a lighter weight, better thermal conductivity, meets the requirements of power modules for better heat-conducting materials, high electrical conductivity, can carry large currents, and the improved mechanical strength improves its reliability, providing a very cost-effective substrate material for the packaging of power modules. After the DBC module completes power chip placement, soldering, and bonding, its performance needs to be tested to enter the subsequent packaging process.

[0003] Comparing with a smart power module test device and system in patent document CN112540251A, it discloses a socket, a PCB board, and a first circuit, a second circuit, an external pad, and a pin pad formed on the PCB board; the pin pads are located on both sides of the module to be tested, and the pin pads are correspondingly arranged with the pins of the module to be tested; the socket is connected to the pin pads and is used to connect with the module to be tested; the first circuit is connected to the pin pads on one side of the module to be tested through a wire, and the second circuit is connected to the pin pads on the other side of the module to be tested through a wire; the first circuit is connected to the second circuit, and the external pad is connected to the first circuit and the second circuit through a wire, and the external pad is used to connect with a testing machine. During testing, the module to be tested is installed on the socket, and the external pad is connected to the testing machine. This invention reduces the risk of module damage, simplifies the testing steps, and speeds up the testing speed. This device is only used for the docking of the pins of power discrete device modules with the test probe bed of the testing machine, rather than the testing of power module products, and the testing items are single, and the testing items cannot be customized and the testing process cannot be changed.

[0004] Comparing with the test device and method of a high-power semiconductor laser module in the patent document CN101839771A, which discloses a test rod, a test rod fixing fixture, a focusing lens, a light guiding fiber and a detector. The test rod is composed of two transparent material rods with the same structure. One end has a 45° inclined section coated with a high reflection film for the wavelength of the laser diode, and the other end has a circular cross-section. The inclined sections are glued coaxially opposite to each other. The test rod is placed on the test rod fixing fixture. The focusing lens is arranged outside one end or both ends of the test rod. One end of the light guiding fiber is located at the focus of the focusing lens, and the other end is connected to the input end of the detector. Although this invention is suitable for measuring high-power semiconductor laser modules with a semi-circular or circular packaging structure and has the advantages of simple structure and convenient test operation, it also cannot customize test items and change the test process, does not have the function of recording and saving test data, and cannot achieve one-to-one scanning code information confirmation. Therefore, a DBC automatic test workstation is proposed to solve the above problems. Summary of the Invention

[0005] The purpose of the present utility model is to solve the above technical problems and provide a DBC automatic test workstation. The present utility model is used to test the DBC module that has completed bonding. The device can integrate various testing machines and automatically complete safety regulations tests, static tests, dynamic tests and other detection items according to the program settings. Different test processes can be realized by calling test programs. At the same time, the device also has the function of recording and saving test data, flexibly configuring test items, and significantly improving the test efficiency.

[0006] The technical solution adopted by the present utility model to solve the above technical problems is: a DBC automatic test workstation, including a test mechanism, a moving truss and a machine table. The test mechanism includes a first test station, a second test station and a third test station. Among them, the first test station, the second test station and the third test station are all installed on the machine table. Both ends of the moving truss are installed on both sides of the machine table, and the moving path of the moving truss is set above the first test station, the second test station and the third test station.

[0007] Preferably, the machine table includes a loading channel and an unloading channel. The loading channel is installed on the left side of the machine table, and the unloading channel is installed on the right side of the machine table.

[0008] Preferably, the loading channel includes a first loading track, a second loading track and a loading lifting transfer table. The first loading track and the second loading track coincide vertically. The second loading track is arranged above the first loading track. The materials on the first loading track are transported to the second loading track through the loading lifting transfer table. A code scanning device is arranged on the second loading track.

[0009] Preferably, the blanking channel includes a first blanking channel, a second blanking channel, and a blanking lifting transfer table. The first blanking channel and the second blanking channel overlap in the vertical direction, with the second blanking channel above the first blanking channel. Materials on the second blanking channel are transported to the first blanking channel through the blanking lifting transfer table. A transfer channel connects the second feeding channel and the second blanking channel.

[0010] Preferably, the moving truss includes a feeding device, a transfer device, and a blanking device;

[0011] The feeding device includes a feeding motor, a feeding clamp, and a feeding slider. The feeding slider is driven by the feeding motor to move on the moving truss, and the feeding clamp is installed on the feeding slider;

[0012] The transfer device includes a transfer motor, a transfer clamp, and a transfer slider. The transfer slider is driven by the transfer motor to move on the moving truss, and the transfer clamp is installed on the transfer slider;

[0013] The blanking device includes a blanking motor, a blanking clamp, and a blanking slider. The blanking slider is driven by the blanking motor to move on the moving truss, and the blanking clamp is installed on the blanking slider.

[0014] Preferably, NG material channels are provided on the sides of the first test station, the second test station, and the third test station. The NG material channels are connected to the transfer channel between every two of the first test station, the second test station, and the third test station.

[0015] Preferably, a transfer track is provided between the first test station and the transfer channel. The two ends of the transfer track are respectively connected to the transfer channel and the end of the second feeding channel;

[0016] A transfer track is also provided between the third test station and the transfer channel. The two ends of the transfer track are respectively connected to the transfer channel and the start end of the second blanking channel;

[0017] A temporary storage table is also provided between the first test station and the transfer channel. The temporary storage table is arranged between the transfer track and the first test station.

[0018] Preferably, the testing machines of the first test station, the second test station, and the third test station include a safety regulation testing machine, a static testing machine, and a dynamic testing machine, which are respectively used for testing safety regulation, static, and dynamic characteristics.

[0019] A testing method for a DBC automated testing workstation specifically includes the following steps:

[0020] Step 1: The tray equipped with modules enters the first loading track from the loading opening of the first loading track. The trays enter in a stacked state and are transported along the track of the first loading track to the loading lifting transfer table. The loading lifting transfer table will sequentially move several trays upward to the second loading track. The transportation direction of the second loading track is opposite to that of the first loading track. The second loading track transports the trays transferred by the loading lifting transfer table to the end of the second loading track. During the transportation process, the tray code is scanned by a code scanning device. The end of the second loading track is a horizontal transportation track;

[0021] Step 2: The tray moves to the transfer track through the horizontal transportation track at the end of the second loading track. The longitudinal chute at the bottom of the transfer track moves the transfer track and the trays on it under the loading fixture. The cylinder of the loading fixture pushes the jaws downward. One of the two jaws of the loading fixture grabs the module on the tray, and the other simultaneously grabs the module on the temporary storage table. The cylinder retracts the jaws, and the loading fixture moves to the right on the moving truss. After reaching the first test station, the cylinder pushes the jaws downward again. At this time, one of the two jaws of the loading fixture places the module grabbed from the tray on the temporary storage table, and the other jaw places the module grabbed from the temporary storage table on the test device at the first test station for testing. The unqualified products are clamped by the loading fixture to the tray on the NG track;

[0022] Step 3: When the test device at the first test station completes the test of the module, the transfer cylinder on the transfer fixture pushes the jaws downward. One of the two jaws on the transfer cylinder grabs the module on the test device at the first test station, and the other grabs the module on the test device at the second test station. The cylinder retracts the jaws, and the transfer fixture moves to the right on the moving truss. After transporting the module grabbed from the first test station above the second test station, at this time, the module grabbed from the second test station will be transported above the third test station. The cylinder pushes the jaws downward again and places the module on the test device at the second test station for testing. The unqualified products are clamped by the loading fixture to the tray on the NG track;

[0023] Step 4: When the test device at the second test station completes the test of the module, the transfer fixture moves to the left on the moving truss. The transfer cylinder pushes the jaws downward. The jaws on the transfer cylinder grab the module at the second test station and retract, then move above the third test station. The cylinder pushes the jaws downward again for testing by the test device at the third test station. The unqualified products are clamped by the loading fixture to the tray on the NG track;

[0024] Step 5: After the testing device at the third testing station finishes testing the module, the blanking fixture moves above the third testing station on the moving truss. The blanking air cylinder pushes the jaws downward. After the jaws grip the tested module at the third testing station, the air cylinder retracts the jaws. The blanking fixture moves to the right on the moving truss and places the module on the empty tray on the transfer track.

[0025] Step 6: After the empty tray on the transfer track is loaded with modules, the transfer track and the tray on it are moved to the inlet of the second blanking channel through the longitudinal chute at the bottom of the transfer track, transported to the blanking lifting transfer table at the second blanking channel, lowered to the first blanking channel through the blanking lifting transfer table, and discharged from the first blanking channel to complete testing and transportation.

[0026] Preferably, after the module is gripped from the tray in Step 2, the left transfer track transports the empty tray to the transfer channel through the longitudinal chute, and after transporting it to the right transfer track, the empty tray is transported to below the blanking fixture through the longitudinal chute to grip and place the tested module on the empty tray for blanking.

[0027] The beneficial effects of the present utility model are as follows:

[0028] 1. The present utility model is used to test the DBC module after bonding. The device can integrate various testing machines, automatically complete safety testing, static testing, dynamic testing and other testing items according to the program settings, and can realize different testing processes by calling the testing program. At the same time, the device also has the function of recording and saving testing data, flexibly configuring testing items, and significantly improving testing efficiency.

[0029] 2. The staff only needs to place the tray at the loading port of the testing station, configure the testing devices at the first testing station, the second testing station and the third testing station. Then the testing workstation can automatically perform detection and transportation. After the detection is completed, the tray can be taken out from the unloading port, greatly reducing the labor demand and cost. It has a high degree of automation, high testing accuracy, can flexibly configure testing items, and better matches the testing of various scales and projects.

[0030] 3. A transfer track is provided to longitudinally displace the tray on the transfer channel back and forth. Longitudinal chutes are provided below both transfer tracks to switch between the testing plane and the transfer channel, so that the two planes do not interfere with each other, and the empty tray is transported while testing, improving testing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 is the overall structural schematic diagram of the present utility model;

[0032] Figure 2 is the structural schematic diagram of the internal mechanical structure of the present utility model;

[0033] Figure 3 It is a schematic structural diagram of the other side of the internal structure of the present utility model.

[0034] In the figure: 1. Testing mechanism, 11. First testing station, 12. Second testing station, 13. Third testing station, 2. Moving truss, 21. Loading device, 211. Loading motor, 212. Loading fixture, 213. Loading slider, 22. Transfer device, 221. Transfer motor, 222. Transfer fixture, 223. Transfer slider, 23. Unloading device, 231. Unloading motor, 232. Unloading fixture, 233. Unloading slider, 3. Machine table, 31. Loading channel, 311. First loading track, 312. Second loading track, 313. Loading lifting transfer table, 32. Unloading channel, 321. First unloading track, 322. Second unloading track, 323. Unloading lifting transfer table, 4. Transfer channel, 5. NG material track, 6. Transfer track, 7. Temporary storage table. Detailed implementation mode

[0035] The present invention will be further described below in conjunction with the accompanying drawings and implementation modes.

[0036] As Figures 1-3 shown, a DBC automatic testing workstation of the present utility model includes a testing mechanism 1, a moving truss 2 and a machine table 3. The testing mechanism 1 includes a first testing station 11, a second testing station 12 and a third testing station 13. Among them, the first testing station 11, the second testing station 12 and the third testing station 13 are all installed on the machine table 3. Both ends of the moving truss 2 are installed on both sides of the machine table 3. The moving path of the moving truss 2 is arranged above the first testing station 11, the second testing station 12 and the third testing station 13. In this testing workstation, the staff only needs to place the tray at the loading port of the testing station, configure the testing devices on the first testing station 11, the second testing station 12 and the third testing station 13, and the testing workstation can automatically detect and transport the content on the tray. After the detection is completed, the tray can be taken out from the unloading port, greatly reducing the manual requirements and costs, with high automation, high testing accuracy, and the ability to flexibly configure testing items, better matching the testing of various scales and projects.

[0037] The machine table 3 includes a loading channel 31 and an unloading channel 32. The loading channel 31 is installed on the left side of the machine table 3, and the unloading channel 32 is installed on the right side of the machine table 3.

[0038] The loading channel 31 includes a first loading path 311, a second loading path 312 and a loading lifting transfer table 313. The first loading path 311 and the second loading path 312 coincide in the vertical direction, and the second loading path 312 is arranged above the first loading path 311. The materials on the first loading path 311 are transported to the second loading path 312 through the loading lifting transfer table 313. A code scanning device 314 is provided on the second loading path 312. The first loading path 311 is the feeding port arranged below the second loading path 312. The staff puts the tray into the first loading path 311, and the tray will enter the lifting platform of the loading lifting transfer table 313 along the track. The lifting platform sequentially transports the stacked trays to the track of the second loading path 312 above in sequence, making the transportation and loading faster and more orderly.

[0039] The unloading channel 32 includes a first unloading path 321, a second unloading path 322 and an unloading lifting transfer table 323. The first unloading path 321 and the second unloading path 322 coincide in the vertical direction, and the second unloading path 322 is arranged above the first unloading path 321. The materials on the second unloading path 322 are transported to the first unloading path 321 through the unloading lifting transfer table 323. There is a transfer channel 4 connecting the second loading path 312 and the second unloading path 322. The first unloading path 321 is the discharge port arranged below the second unloading path 322. The tray will enter the lifting platform of the unloading lifting transfer table 323 along the track of the second unloading path 322. The lifting platform sequentially transports the trays to the track of the first unloading path 321 in sequence and stacks them for transportation out from the first unloading path 321. The staff can take out the tray from the first unloading path 321, making the transportation and discharging faster and more orderly.

[0040] The mobile truss 2 includes a loading device 21, a transfer device 22 and an unloading device 23;

[0041] The loading device 21 includes a loading motor 211, a loading clamp 212 and a loading slider 213. The loading slider 213 is driven by the loading motor 211 to move on the mobile truss 2. The loading clamp 212 is installed on the loading slider 213. The loading slider 213, the transfer slider 223 and the unloading slider 233 are sequentially installed on the moving track of the mobile truss 2 from left to right. The loading slider 213 is close to the loading channel 31, and the unloading slider 233 is close to the unloading channel 32. Both the loading clamp 212 and the transfer clamp 222 include two clamping jaws, while the unloading clamp 232 only includes one clamping jaw. The loading clamp 212 needs to perform the functions of loading and transportation, the transfer clamp 222 performs the transfer function, and the unloading clamp 232 only needs to perform the unloading function;

[0042] The transfer device 22 includes a transfer motor 221, a transfer fixture 222, and a transfer slider 223. The transfer slider 223 is driven by the transfer motor 221 to move on the moving truss 2, and the transfer fixture 222 is installed on the transfer slider 223;

[0043] The blanking device 23 includes a blanking motor 231, a blanking fixture 232, and a blanking slider 233. The blanking slider 233 is driven by the blanking motor 231 to move on the moving truss 2, and the blanking fixture 232 is installed on the blanking slider 233. The jaws on the loading fixture 212, the transfer fixture 222, and the blanking fixture 232 are all provided with separate cylinders, and the cylinders are responsible for grasping and retracting the jaws.

[0044] NG material channels 5 are provided on the sides of the first test station 11, the second test station 12, and the third test station 13. The NG material channels 5 are arranged between every two of the first test station 11, the second test station 12, and the third test station 13 and are connected to the transfer channel 4. NG trays are placed on the NG material channels 5 for holding NG products. An outlet track is also provided on the lower side of the NG material channels 5 to facilitate transporting the trays out of the test area and prevent accidental injury to the staff taking and replacing the NG trays.

[0045] A transfer track 6 is provided between the first test station 11 and the transfer channel 4. The two ends of the transfer track 6 are respectively connected to the transfer channel 4 and the end of the second loading channel 312;

[0046] A transfer track 6 is also provided between the third test station 13 and the transfer channel 4. The two ends of the transfer track 6 are respectively connected to the transfer channel 4 and the start end of the second blanking channel 322. The transfer track 6 is used to longitudinally displace the trays on the transfer channel 4 forward and backward. Longitudinal chutes are provided below the two transfer tracks 6 to switch between the test plane and the transfer channel 4 so that the two planes do not interfere with each other, and empty trays are transported while testing to improve the test efficiency;

[0047] A temporary storage table 7 is also provided between the first test station 11 and the transfer channel 4. The temporary storage table 7 is arranged between the transfer track 6 and the first test station 11. The temporary storage table 7 is used to temporarily place the modules for exchange, enabling both the front and rear jaws of the loading fixture 212 to work continuously, with higher work efficiency and increased loading speed.

[0048] The testing machines at the first test station 11, the second test station 12, and the third test station 13 include safety testing machines, static testing machines, and dynamic testing machines, which are respectively used for testing safety regulations, static, and dynamic characteristics. Among them, the static testing machines are often set at the first test station 11 and the third test station 13, and the dynamic testing machine is often set at the second test station 12. Customers can also reduce the number of test stations according to needs for the purpose of single-function testing.

[0049] A testing method for a DBC automated testing workstation, specifically including the following steps:

[0050] Step 1: The tray equipped with modules enters the first loading track 311 from the loading port of the first loading track 311. The trays enter in a stacked state and are transported along the track of the first loading track 311 to the loading lifting transfer table 313. The loading lifting transfer table 313 will sequentially move several trays upward to the second loading track 312. The transportation direction of the second loading track 312 is opposite to that of the first loading track 311. The second loading track 312 transports the trays transported by the loading lifting transfer table 313 to the end of the second loading track 312. During the transportation process, the tray code is scanned by a code scanning device. The end of the second loading track 312 is a horizontal transportation track;

[0051] Step 2: The tray moves to the transfer track 6 through the horizontal transportation track at the end of the second loading track 312. The longitudinal chute at the bottom of the transfer track 6 moves the transfer track 6 and the trays on it to below the loading fixture 212. The cylinder of the loading fixture 212 pushes the jaws downward. One of the two jaws of the loading fixture 212 grabs the module on the tray, and the other simultaneously grabs the module on the temporary storage table 7. The cylinder retracts the jaws. The loading fixture 212 moves to the right on the moving truss 2. After reaching the first testing station 11, the cylinder again pushes the jaws downward. At this time, one of the two jaws of the loading fixture 212 places the module grabbed from the tray on the temporary storage table 7, and the other jaw places the module grabbed from the temporary storage table 7 on the testing device at the first testing station 11 for testing. The unqualified products are clamped by the loading fixture 212 to the tray on the NG track 5;

[0052] Step 3: When the testing device at the first testing station 11 finishes testing the module, the transfer cylinder on the transfer fixture 222 pushes the jaws downward. One of the two jaws on the transfer cylinder grabs the module on the testing device at the first testing station 11, and the other grabs the module on the testing device at the second testing station 12. The cylinder retracts the jaws. The transfer fixture 222 moves to the right on the moving truss 2. After transporting the module grabbed from the first testing station 11 above the second testing station 12, at this time, the module grabbed from the second testing station 12 will be transported above the third testing station 13. The cylinder again pushes the jaws downward and places the module on the testing device at the second testing station 12 for testing. The unqualified products are clamped by the loading fixture 212 to the tray on the NG track 5;

[0053] Step 4: After the testing device on the second testing station 12 finishes testing the module, the transfer fixture 222 moves leftward on the moving truss 2, the transfer cylinder pushes the jaws downward, the jaws on the transfer cylinder grab the module on the second testing station 12 and move back, then reach above the third testing station 13. The cylinder pushes the jaws downward again for the testing device on the third testing station 13 to conduct a test. The unqualified products are clamped by the feeding fixture 212 to the tray on the NG track 5.

[0054] Step 5: After the testing device on the third testing station 13 finishes testing the module, the discharging fixture 232 moves to above the third testing station 13 on the moving truss 2. The discharging cylinder pushes the jaws downward. After the jaws grab the module that has completed the test on the third testing station 13, the cylinder retracts the jaws. The discharging fixture 232 moves rightward on the moving truss 2 and places the module on the empty tray on the transfer track 6.

[0055] After the empty tray on the transfer track 6 is loaded with modules, the transfer track 6 and the tray on it are moved to the inlet of the second discharging track 322 through the longitudinal chute at the bottom of the transfer track 6, transported to the discharging lifting transfer table 323 at the second discharging track 322, lowered to the first discharging track 321 through the discharging lifting transfer table 323 and discharged from the first discharging track 321 to complete the testing and transportation.

[0056] After the module in Step 2 is completely clamped from the tray, the left transfer track 6 transports the empty tray to the transfer channel 4 through the longitudinal chute, and after transporting it to the right transfer track 6, the empty tray is transported to below the discharging fixture 232 through the longitudinal chute to clamp and place the tested module on the empty tray for discharging.

[0057] The various embodiments in the specification are described in a progressive manner. Each embodiment focuses on the differences from other embodiments. The same or similar parts among the various embodiments can be referred to each other.

[0058] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be obvious to those skilled in the art. The general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A DBC automated test workstation, characterized in that: The invention comprises a testing mechanism (1), a movable truss (2) and a machine platform (3), wherein the testing mechanism (1) comprises a first testing station (11), a second testing station (12) and a third testing station (13), wherein the first testing station (11), the second testing station (12) and the third testing station (13) are all installed on the machine platform (3), the two ends of the movable truss (2) are installed on the two sides of the machine platform (3), and the moving path of the movable truss (2) is arranged above the first testing station (11), the second testing station (12) and the third testing station (13).

2. The DBC automated test workstation according to claim 1, characterized in that: The machine platform (3) comprises a loading channel (31) and a unloading channel (32); the loading channel (31) is installed on the left side of the machine platform (3), and the unloading channel (32) is installed on the right side of the machine platform (3).

3. The DBC automated testing workstation according to claim 2, characterized in that: The feeding channel (31) comprises a first feeding channel (311), a second feeding channel (312) and a feeding lifting transfer platform (313); the first feeding channel (311) and the second feeding channel (312) overlap in the vertical direction; the second feeding channel (312) is arranged above the first feeding channel (311); the material on the first feeding channel (311) is transported to the second feeding channel (312) via the feeding lifting transfer platform (313); and a code scanning device is arranged on the second feeding channel (312).

4. The DBC automated testing workstation according to claim 2, characterized in that: The material discharge channel (32) comprises a first material discharge channel (321), a second material discharge channel (322) and a material discharge lifting transfer platform (323); the first material discharge channel (321) and the second material discharge channel (322) overlap in the vertical direction; the second material discharge channel (322) is arranged above the first material discharge channel (321); the material on the second material discharge channel (322) is transported to the first material discharge channel (321) via the material discharge lifting transfer platform (323); the second material discharge channel (312) and the second material discharge channel (322) are connected via a transfer channel (4).

5. The DBC automated testing workstation according to claim 1, characterized in that: The mobile truss (2) comprises a loading device (21), a transfer device (22) and a unloading device (23); The feeding device (21) comprises a feeding motor (211), a feeding fixture (212) and a feeding slide block (213); the feeding slide block (213) is driven by the feeding motor (211) to move on the movable truss (2); and the feeding fixture (212) is mounted on the feeding slide block (213); The transfer device (22) comprises a transfer motor (221), a transfer fixture (222) and a transfer slider (223); the transfer slider (223) is driven by the transfer motor (221) to move on the movable truss (2); and the transfer fixture (222) is mounted on the transfer slider (223); The unloading device (23) comprises an unloading motor (231), an unloading fixture (232) and an unloading slide block (233); the unloading slide block (233) is driven by the unloading motor (231) to move on the movable truss (2); and the unloading fixture (232) is mounted on the unloading slide block (233).

6. The DBC automated testing workstation according to claim 1 or 4, characterized in that: An NG material channel (5) is provided on the side of the first test station (11), the second test station (12) and the third test station (13); the NG material channel (5) is arranged between each of the first test station (11), the second test station (12) and the third test station (13) and is connected to the transfer channel (4).

7. The DBC automated testing workstation according to claim 1, 3 or 4, characterized in that: A transfer track (6) is provided between the first testing station (11) and the transfer channel (4), and two ends of the transfer track (6) are respectively connected to the transfer channel (4) and the end of the second loading channel (312); A transfer track (6) is also provided between the third test station (13) and the transfer channel (4), and the two ends of the transfer track (6) are respectively connected to the transfer channel (4) and the starting end of the second material discharge channel (322); A temporary storage platform (7) is also provided between the first testing station (11) and the transfer channel (4), and the temporary storage platform (7) is provided between the transfer track (6) and the first testing station (11).

8. The DBC automated testing workstation according to claim 1, characterized in that: The testing machines at the first testing station (11), the second testing station (12) and the third testing station (13) include a safety testing machine, a static testing machine and a dynamic testing machine, which are respectively used for testing safety, static and dynamic characteristics.

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