An automated vision-assisted testing device for central control screens

Abstract

This invention relates to the field of central control screen testing, specifically to an automated vision-assisted testing device for central control screens, comprising a frame and a handling robot. A first flipping mechanism is fixedly connected to the frame. The first flipping mechanism includes a base plate, on which a feeding line, a lifting component, and a flipping component are fixedly connected. The lifting component lifts the product from the feeding line onto the flipping component, and the flipping component flips the product to a testing position. A barcode scanning mechanism is provided at the tail end of the first flipping mechanism for scanning and identifying the product. This invention sets up a first flipping mechanism, a barcode scanning mechanism, a flying camera module, a handling robot, and multiple fixture plate mechanisms to form an automated testing system. This solves the problems of large equipment footprint and poor test process coordination caused by the dispersed layout of multiple workstations in existing technologies, thus improving testing efficiency.

Description

Technical Field

[0001] This invention relates to the field of central control screen testing technology, specifically to an automated vision-assisted testing device for central control screens. Background Technology

[0002] The car's central control unit is where you control the car's air conditioning, audio system, and other comfort and entertainment features. It includes a central locking system, allowing the driver to control all the car's doors and windows.

[0003] Before leaving the factory, automotive central control screens need to undergo power-on testing to check whether their display and other functions are normal. Currently, central control screen testing is often completed using multiple independent, single-function workstations connected by a transfer mechanism. This segmented layout not only results in a large overall footprint and complex structure of the equipment, affecting testing efficiency, but also makes it difficult to unify the product posture during the loading process, making it difficult to automatically flip to the accurate test position and angle, leading to positioning deviations, affecting test accuracy, and causing misjudgments or missed tests. Summary of the Invention

[0004] Therefore, the technical problem to be solved by the present invention is to overcome the fact that the segmented layout of the prior art not only results in a large overall footprint and complex structure of the equipment, affecting testing efficiency, but also makes it difficult to unify the product posture during the loading process, making it difficult to automatically flip to the accurate test position and angle, resulting in positioning deviation, affecting the accuracy of the test, and causing defects such as misjudgment or missed test. Thus, the present invention provides an automated vision-assisted testing device for central control screens.

[0005] To solve the above-mentioned technical problems, the present invention provides an automated visual-assisted testing device for a central control screen, including a frame and a transport robot, wherein a first flipping mechanism is fixedly connected to the frame;

[0006] The first flipping mechanism includes a base plate, on which a feeding assembly line, a lifting component, and a flipping component are fixedly connected. The lifting component is used to lift the product on the feeding assembly line onto the flipping component, and the flipping component is used to flip the product to a test posture.

[0007] The tail end of the first flipping mechanism is provided with a barcode scanning mechanism, which is used to scan and identify the product.

[0008] The scanning mechanism is equipped with a flying camera module at its tail end, which is used for visual positioning of the product during the handling process.

[0009] The transport robot is positioned between the flying camera module and the fixture plate mechanism to transport products to the fixture plate mechanism and remove products that have completed testing.

[0010] Furthermore, the flipping assembly includes a fixed plate, on which a lifting component is fixedly connected. A support frame is fixedly connected to the output end of the lifting component. A driving component is fixedly connected to the support frame. A flipping frame is rotatably connected to the support frame via a rotating shaft. The output end of the driving component is connected to the input end of the rotating shaft. Flipping clamping blocks are provided at each of the four corners of the flipping frame. The flipping clamping blocks are used to clamp the product to be flipped.

[0011] Furthermore, guide rods are fixedly connected to both sides inside the flipping frame, and the flipping clamping block is fixedly sleeved on the guide rods.

[0012] Furthermore, the flipping clamping block includes a positioning block, the positioning block having a through fixing hole, the fixing hole on the positioning block being fitted onto the outer surface of the guide rod, and the top of the positioning block having a positioning groove for placing the product;

[0013] A positioning cylinder is fixedly connected to the bottom of the positioning block, and a clamping block is fixedly connected to the output end of the positioning cylinder.

[0014] Furthermore, the scanning mechanism includes a conveyor line, an upper barcode scanner, and a lower barcode scanner. The upper barcode scanner and the lower barcode scanner are located above and below the conveyor line, respectively, and are used to adapt to identification codes at different positions on the product.

[0015] Furthermore, baffles are fixedly connected to both sides of the tail end of the conveyor line.

[0016] Furthermore, there are at least two fixture plate mechanisms, which are used to support and fix the product for electrical performance testing.

[0017] Furthermore, the fixture plate mechanism includes a base frame, a push cylinder is fixedly connected to the top of the base frame, a push plate is fixedly connected to the output end of the push cylinder, and a carrier plate for carrying products is fixedly connected to the top of the push plate.

[0018] A test pin plate is installed on the top of the bottom frame, and the probes on the test pin plate correspond to the test points of the product.

[0019] The push plate is fitted with a guide sleeve, and the top of the bottom frame is fixedly connected to a guide post. The guide sleeve is slidably connected to the outer surface of the guide post.

[0020] Furthermore, it also includes a visual testing mechanism, which is mounted above the fixture plate mechanism and is used to perform visual inspection on the product;

[0021] The vision testing mechanism includes a mounting frame, and at least one industrial camera is fixedly connected to the bottom of the mounting frame.

[0022] Furthermore, the tail end of the flying camera module is provided with a second flipping mechanism, which is used to flip the product to the outflow posture after the test is completed;

[0023] The tail end of the second flipping mechanism is provided with a discharge conveyor line, which is used to transport the product to the next work station.

[0024] By employing the above technical solution, the present invention provides an automated vision-assisted testing device for central control screens, which has at least the following beneficial effects:

[0025] 1. The present invention sets up a first flipping mechanism, a barcode scanning mechanism, a flying camera module, a transport robot, and multiple fixture plate mechanisms to form an automated testing system, which solves the problems of large equipment footprint and poor connection of testing process caused by the dispersed layout of multiple workstations in the prior art, and improves testing efficiency.

[0026] 2. In this invention, the lifting component can lift the product on the feeding line onto the flipping component, and flip the product to the test posture by the flipping component, avoiding positioning deviation caused by inconsistent initial posture of the product, facilitating subsequent testing and improving the accuracy of the test. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the structure of the present invention;

[0028] Figure 2 This is a schematic diagram of the first flipping mechanism in this invention;

[0029] Figure 3 This is a schematic diagram of the lifting component structure in this invention;

[0030] Figure 4 This is a schematic diagram of the flipping component structure in this invention;

[0031] Figure 5 This is a schematic diagram of the tilting component structure from a low angle in this invention;

[0032] Figure 6 This is a schematic diagram of the flip-clamp block structure in this invention;

[0033] Figure 7 This is a schematic diagram of the scanning mechanism in this invention;

[0034] Figure 8 This is a schematic diagram of the fixture plate mechanism in this invention;

[0035] Figure 9 This is a schematic diagram of the visual testing mechanism in this invention.

[0036] In the diagram: 10. Frame; 20. First tilting mechanism; 21. Base plate; 22. Feeding line; 23. Lifting assembly; 24. Tilting assembly; 2401. Fixing plate; 2402. Lifting component; 2403. Support frame; 2404. Drive component; 2405. Rotating shaft; 2406. Tilting frame; 2407. Guide rod; 2408. Tilting clamping block; 24081. Positioning block; 24082. Positioning cylinder; 24083. Clamping block; 30. Barcode scanner Structure; 31. Conveyor line; 32. Upper barcode scanner; 33. Lower barcode scanner; 34. Material stop; 40. Flying camera module; 50. Handling robot; 60. Fixture plate mechanism; 61. Base frame; 62. Push cylinder; 63. Push plate; 64. Carrier plate; 65. Guide sleeve; 66. Guide post; 67. Test pin plate; 70. Vision testing mechanism; 71. Fixture; 72. Industrial camera; 80. Second flipping mechanism; 90. Discharge line; 100. Product. Detailed Implementation

[0037] The embodiments of the present invention will be described in detail below with reference to the accompanying drawings, but the present invention can be implemented in many different ways as defined and covered by the claims.

[0038] like Figure 1 , Figure 2 and Figure 3 As shown, an automated vision-assisted testing device for a central control screen includes a frame 10 and a handling robot 50, with a first flipping mechanism 20 fixedly connected to the frame 10.

[0039] The first flipping mechanism 20 includes a base plate 21, on which a feeding line 22, a lifting component 23 and a flipping component 24 are fixedly connected. The lifting component 23 is used to lift the product 100 on the feeding line 22 onto the flipping component 24, and the flipping component 24 is used to flip the product 100 to a test posture.

[0040] The tail end of the first flipping mechanism 20 is provided with a barcode scanning mechanism 30, which is used to scan and identify the product 100.

[0041] The scanning mechanism 30 is equipped with a flying camera module 40 at its tail end. The flying camera module 40 is used to perform visual positioning of the product 100 during the handling process.

[0042] The transport robot 50 is positioned between the flying camera module 40 and the fixture plate mechanism 60 to transport the product 100 to the fixture plate mechanism 60 and remove the product 100 after testing.

[0043] The present invention sets up a first flipping mechanism 20, a barcode scanning mechanism 30, a flying camera module 40, a handling robot 50 and multiple fixture plate mechanisms 60 to form an automated testing system, which solves the problems of large equipment footprint and poor connection of testing process caused by the dispersed layout of multiple workstations in the prior art, and improves testing efficiency.

[0044] In this invention, the lifting component 23 can lift the product 100 on the feeding line 22 onto the flipping component 24, and flip the product 100 to the test posture by the flipping component 24, so as to avoid the positioning deviation caused by the inconsistency of the initial posture of the product 100, facilitate subsequent testing, and improve the accuracy of the test.

[0045] like Figure 4 and Figure 5 As shown, the flipping assembly 24 includes a fixed plate 2401, a lifting component 2402 fixedly connected to the fixed plate 2401, a support frame 2403 fixedly connected to the output end of the lifting component 2402, a driving component 2404 fixedly connected to the support frame 2403, and a flipping frame 2406 rotatably connected to the support frame 2403 via a rotating shaft 2405. The output end of the driving component 2404 is connected to the input end of the rotating shaft 2405. Flipping clamping blocks 2408 are provided at each of the four corners of the flipping frame 2406. The flipping clamping blocks 2408 are used to clamp the product 100 to be flipped.

[0046] When product 100 is delivered to multiple flipping clamp blocks 2408 by lifting component 23, flipping clamp blocks 2408 clamp and fix product 100. Drive component 2404 drives the entire flipping frame 2406 and the product 100 clamped on it to rotate through rotating shaft 2405, thereby flipping product 100 from the initial posture to the posture required for testing. After flipping is completed, flipping clamp blocks 2408 are released, lifting component 2402 drives support frame 2403 and flipping frame 2406 to descend, and place the product 100 with the posture adjusted on feeding line 22.

[0047] like Figure 4 and Figure 5 As shown, guide rods 2407 are fixedly connected to both sides inside the flipping frame 2406, and flipping clamping blocks 2408 are fixedly sleeved on the guide rods 2407. According to the actual size of the product 100 to be tested, the four flipping clamping blocks 2408 can be slid along the guide rods 2407 to a suitable position and then fixed, thereby adapting to products 100 of different specifications.

[0048] like Figure 6 As shown, the flipping clamping block 2408 includes a positioning block 24081, which has a through fixing hole. The fixing hole on the positioning block 24081 is fitted onto the outer surface of the guide rod 2407. The top of the positioning block 24081 has a positioning groove for placing the product 100.

[0049] A positioning cylinder 24082 is fixedly connected to the bottom of the positioning block 24081, and a clamping block 24083 is fixedly connected to the output end of the positioning cylinder 24082.

[0050] When product 100 is delivered to the tilting frame 2406 by the lifting component 23, product 100 will first fall into the positioning groove at the top of the positioning block 24081. The positioning cylinder 24082 will run to pull the clamping block 24083 to move. The inner clamping surface of the clamping block 24083 will contact the top and outer wall of product 100, fixing product 100 on the positioning block 24081.

[0051] like Figure 7 As shown, the scanning mechanism 30 includes a conveyor line 31, an upper barcode scanner 32, and a lower barcode scanner 33. The upper barcode scanner 32 and the lower barcode scanner 33 are located above and below the conveyor line 31, respectively, to accommodate identification codes at different positions on the product 100. When the product 100 passes through the scanning station, the upper barcode scanner 32 and the lower barcode scanner 33 scan the upper and lower surfaces of the product 100, respectively. If the product code is on the top, it is identified by the upper barcode scanner 32; if it is on the bottom, it is identified by the lower barcode scanner 33.

[0052] Both sides of the tail end of the conveyor line 31 are fixedly connected to baffles 34. The baffles 34 can block the product 100 on the conveyor line 31, making it easier for the handling robot 50 to orderly grasp the product 100 and transport it to an idle testing station.

[0053] like Figure 1 and Figure 8 As shown, there are at least two fixture plate mechanisms 60, which are used to support and fix the product 100 for electrical performance testing. When one fixture plate mechanism 60 is being tested, the handling robot 50 can load or remove the tested product 100 from another idle fixture plate mechanism 60, reducing waiting time and improving testing efficiency.

[0054] The fixture plate mechanism 60 includes a base frame 61, a push cylinder 62 is fixedly connected to the top of the base frame 61, a push plate 63 is fixedly connected to the output end of the push cylinder 62, and a carrier plate 64 for carrying the product 100 is fixedly connected to the top of the push plate 63.

[0055] A test pin plate 67 is mounted on the top of the bottom frame 61, and the probes on the test pin plate 67 correspond to the test points of the product 100.

[0056] A guide sleeve 65 is embedded on the push plate 63, and a guide post 66 is fixedly connected to the top of the bottom frame 61. The guide sleeve 65 is slidably connected to the outer surface of the guide post 66.

[0057] After the handling robot 50 places the product 100 onto the carrier plate 64, it pushes the cylinder 62 to pull down the push plate 63 and the carrier plate 64, causing the product 100 to descend smoothly. At this time, the guide sleeve 65 slides on the outer surface of the guide post 66. When the product 100 descends to its lowest point, the test point on the bottom of the product 100 contacts the probe on the test pin plate 67 and generates a certain contact pressure. At this point, power-on and functional testing can begin. After the test is completed, the cylinder 62 is pushed back, causing the product 100 to rise and detach from the test pin plate 67, making it easy for the handling robot 50 to remove it.

[0058] like Figure 1 and Figure 9 As shown, the automated visual-assisted testing equipment for the central control screen also includes a visual testing mechanism 70, which is mounted above the fixture plate mechanism 60 and is used to perform visual inspection on the product 100.

[0059] The visual testing mechanism 70 includes a mounting frame 71, with at least one industrial camera 72 fixedly connected to the bottom of the mounting frame 71. After the test points of the product 100 come into contact with the test pin plate 67, they are in a powered-on state. At this time, the test program controls the display screen of the product 100 to display test images such as solid color images, grid images, and gradient images. The industrial camera 72 takes pictures of the lit display screen, captures the display image, and transmits the captured image to the image processing system for comparison and analysis with a preset standard template, thereby determining whether the display screen has appearance defects such as bright and dark spots, color spots, uneven display, and missing lines.

[0060] like Figure 1 As shown, the handling robot 50 is a six-axis robot, and its end effector is equipped with a gripper and a marker.

[0061] Specifically, when the test result of product 100 is a defective product, after the handling robot 50 removes product 100 from the fixture plate mechanism 60, it controls the marker pen to draw a clear mark on the edge or back of product 100.

[0062] like Figure 1 As shown, the tail end of the flying camera module 40 is provided with a second flipping mechanism 80, which is used to flip the product 100 to the outflow posture after the test is completed.

[0063] The structure and working principle of the second flipping mechanism 80 are the same as or similar to those of the first flipping mechanism 20. After the handling robot 50 places the product 100, which has completed all tests, onto the second flipping mechanism 80, the second flipping mechanism 80 performs a flipping action that is the opposite of that during feeding. If the screen needs to be facing upwards during testing and downwards during outflow to protect the screen or meet packaging requirements, the second flipping mechanism 80 will flip the product 100 from the testing posture back to the outflow posture.

[0064] The tail end of the second flipping mechanism 80 is provided with a discharge line 90, which is used to transport the product 100 to the subsequent packaging station, sorting station or storage area.

[0065] The working principle of this invention is as follows: The product to be tested 100 is placed on the feeding line 22. The lifting component 23 lifts the product 100 from the feeding line 22 and transfers it to the flipping component 24. After the flipping clamp block 2408 clamps and fixes the product 100, the driving component 2404 drives the flipping frame 2406 to rotate, automatically and uniformly flipping the product 100 from the initial disordered posture to the preset test posture.

[0066] After the posture adjustment is completed, the product 100 is put back and flows into the barcode scanning mechanism 30 and is carried by the conveyor line 31. The upper barcode scanner 32 and the lower barcode scanner 33 located above and below the conveyor line 31 simultaneously scan the upper and lower surfaces of the product 100 and automatically read its identification code.

[0067] After scanning, the handling robot 50, based on the coordinate information provided by the aerial camera module 40, picks up the positioned product 100 from the conveyor line 31. It then moves the product 100 and places it on a carrier plate 64 of an idle fixture plate mechanism 60. After placement, the cylinder 62 moves, causing the carrier plate 64 and the product to descend via the push plate 63. This allows the test points on the bottom of the product 100 to contact the probes on the test pin plate 67, establishing an electrical connection and initiating electrical performance testing. Simultaneously, the industrial camera 72 captures an image of the product 100 after it is powered on, and the captured image is transmitted to the image processing system for defect analysis.

[0068] While one fixture plate mechanism 60 is being tested, the handling robot 50 can load material onto another idle fixture plate mechanism 60, or remove the product 100 that has completed testing from the fixture plate mechanism 60.

[0069] After testing, the handling robot 50 removes product 100 from the fixture plate mechanism 60. If the test result is defective, a marker pen at the end of the handling robot 50 will mark product 100. Then, the handling robot 50 places the product onto the second flipping mechanism 80, which adjusts product 100 from its testing posture back to a designated posture suitable for outflow or packaging. Finally, product 100 is conveyed to the next process via the discharge line 90, completing the entire automated testing process.

[0070] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A central control screen automated visual aid testing apparatus comprising a rack (10) and a handling robot (50), characterized in that: The first turnover mechanism (20) is fixedly connected on the rack (10); The first turnover mechanism (20) includes a bottom plate (21), the bottom plate (21) is fixedly connected with a feeding assembly line (22), a lifting assembly (23) and a turnover assembly (24), the lifting assembly (23) is used for lifting the product (100) on the feeding assembly line (22) to the turnover assembly (24), and the turnover assembly (24) is used for overturning the product (100) to a test posture; The tail end of the first turnover mechanism (20) is provided with a code scanning mechanism (30), and the code scanning mechanism (30) is used for scanning and identifying the product (100); The tail end of the code scanning mechanism (30) is provided with a flying camera module (40), and the flying camera module (40) is used for visually positioning the product (100) during the carrying process; The carrying robot (50) is arranged between the flying camera module (40) and the jig flat plate mechanism (60), and is used for carrying the product (100) to the jig flat plate mechanism (60) and moving the tested product (100) out; The turnover assembly (24) includes a fixed plate (2401), the fixed plate (2401) is fixedly connected with a lifting piece (2402), the output end of the lifting piece (2402) is fixedly connected with a bearing frame (2403), the bearing frame (2403) is fixedly connected with a driving piece (2404), the bearing frame (2403) is rotatably connected with a turnover frame (2406) through a rotating shaft (2405), the output end of the driving piece (2404) is in transmission connection with the input end of the rotating shaft (2405), and the four corners of the turnover frame (2406) are all provided with turnover clamping pieces (2408), and the turnover clamping pieces (2408) are used for clamping the product (100) to be overturned; The two sides in the turnover frame (2406) are fixedly connected with guide rods (2407), and the turnover clamping pieces (2408) are fixedly sleeved on the guide rods (2407); The turnover clamping piece (2408) includes a positioning block (24081), the positioning block (24081) is provided with a penetrating fixed hole, the fixed hole of the positioning block (24081) is sleeved on the outer surface of the guide rod (2407), and the top of the positioning block (24081) is provided with a positioning groove for placing the product (100); The bottom of the positioning block (24081) is fixedly connected with a positioning cylinder (24082), and the output end of the positioning cylinder (24082) is fixedly connected with a clamping block (24083).

2. The automated visual assist test device for a central control screen according to claim 1, wherein: The code scanning mechanism (30) includes a conveying assembly line (31), an upper code scanner (32) and a lower code scanner (33), the upper code scanner (32) and the lower code scanner (33) are respectively located above and below the conveying assembly line (31), and are used for adapting to identification codes at different positions of the product (100).

3. The automated visual assist test device for a central control screen according to claim 2, wherein: The two sides of the tail end of the conveying assembly line (31) are fixedly connected with material blocking pieces (34).

4. The automated visual assist test device for a central control screen according to claim 1, wherein: The jig flat mechanism (60) is at least two, the jig flat mechanism (60) is used to carry and fix product (100) to carry out electrical performance test.

5. The automated visual assist test device for a central control screen according to claim 4, wherein: The jig flat mechanism (60) includes bottom frame (61), the top of bottom frame (61) is fixedly connected with push air cylinder (62), the output end of push air cylinder (62) is fixedly connected with push plate (63), the top of push plate (63) is fixedly connected with the load plate (64) of carrying product (100); The top of bottom frame (61) is installed with test needle plate (67), the probe on test needle plate (67) corresponds with the test point of product (100).

6. The automated visual assist test device for a central control screen according to claim 1, wherein: It also includes visual test mechanism (70), visual test mechanism (70) is erected above jig flat mechanism (60), visual test mechanism (70) is used to carry out visual inspection to product (100); The bottom of fixed frame (71) is fixedly connected with at least one industrial camera (72).

7. The automated visual assist test device for a central control screen according to claim 1, wherein: The tail end of the fly camera module (40) is provided with a second turnover mechanism (80), and the second turnover mechanism (80) is used to turn over the product (100) to the outflow posture after the test is completed. The tail end of the second turnover mechanism (80) is provided with an outfeed line (90), and the outfeed line (90) is used to convey the product (100) to the next station.

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