Device for detecting front and back surfaces of product

Abstract

The invention discloses a product front and back side detection device, and particularly relates to the technical field of keyboard product detection equipment, and the product front and back side detection device comprises a top appearance visual detection mechanism and a bottom appearance visual detection mechanism. Through cooperation of the top appearance visual detection mechanism and the bottom appearance visual detection mechanism and combination of the adsorption transfer function of the manipulator mechanism, automatic continuous detection of the front and back surfaces of a product is realized, manual overturning and repeated transfer are not needed, the detection efficiency is greatly improved, collision damage possibly occurring in the transfer process is avoided, and the product quality is improved. The main camera can be accurately positioned through a lifting sliding table, a camera front-back adjusting knob and a camera left-right adjusting knob, four sets of side light-emitting plates can adjust the height and angle to provide adaptive illumination, clear images are ensured, the detection precision is improved, misjudgment is reduced, a buffer module of the mechanical arm mechanism can buffer taking and placing impact, full-process automatic operation reduces manual intervention, and the working efficiency is improved. The method is suitable for batch production and effectively guarantees the detection quality and efficiency.

Description

Technical Field

[0001] This invention relates to the technical field of keyboard product testing equipment, specifically to a product front and back testing device. Background Technology

[0002] In the field of precision manufacturing, the inspection of product surface quality and dimensional accuracy is a key link to ensure product performance and reliability. With the development of automated production technology, traditional manual inspection methods can no longer meet the needs of efficient and high-precision production. Especially for products that need to be inspected on both sides and key dimensions at the same time, manual inspection is not only inefficient, but also prone to misjudgment due to human factors, and cannot achieve real-time traceability of inspection data.

[0003] Some existing automated testing equipment adopts a single-module testing mode on a single production line, which can only complete the testing of one side of the product. For products that require double-sided testing, multiple transfers are required, which increases the risk of bumps and damage. Other equipment, although it has double-sided testing function, lacks a targeted positioning and barcode scanning integration design, resulting in insufficient detection and positioning accuracy and the inability to accurately link product information and testing data, which affects subsequent quality traceability. At the same time, during the product transfer and placement process, due to the lack of a partition isolation mechanism, scratches and bumps are easily caused by direct contact between products, reducing the product pass rate.

[0004] Therefore, there is an urgent need for an automated inspection system that integrates double-sided inspection, precise positioning, automatic sorting, and anti-collision functions, while standardizing tolerances and edge processing standards to meet the needs of the precision manufacturing industry for efficient, high-precision, and high-reliability inspection. Summary of the Invention

[0005] Therefore, the purpose of this invention is to provide a product front and back detection device to solve the technical problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a product front and back detection device, comprising:

[0007] The main body and the feeding line set at one corner of it are used to transport the products to be tested. A top appearance visual inspection mechanism is set above the feeding line. The top appearance visual inspection mechanism includes a square tube frame that plays a supporting role.

[0008] A vision camera module is installed on one side of the top of the square tube frame, and the vision camera module is equipped with a side light source module. The vision camera module includes a main camera for taking pictures and detecting the front of the product, and the side light source module includes a side light-emitting plate for illuminating the edge of the product.

[0009] Furthermore, the main camera of the top visual inspection mechanism is located above the feeding line, which serves to photograph and inspect the products located at the top of the feeding line.

[0010] The vision camera module also includes a lifting slide for adjusting the height of the main camera, a camera front-to-back adjustment knob for adjusting the front-to-back position of the main camera, and a camera left-to-right adjustment knob for adjusting the left-to-right position of the main camera.

[0011] The side light source module also includes a connecting frame for mounting the side light-emitting plate, which is fixed to the square tube frame;

[0012] A rotating shaft is fixed at the middle position of the back of the side light-emitting panel, and a height adjustment slider that is movably connected to the outside of the rotating shaft and adjusted for lifting and lowering of the connecting frame is provided. An angle adjustment knob is fixed at the end of the rotating shaft.

[0013] There are four sets of side-emitting panels located on the four sides of the connecting frame;

[0014] A robotic arm mechanism is provided in the middle of the main body. The robotic arm mechanism consists of a six-axis robotic arm placed on a platform, wherein a suction cup fixture is fixed to the execution end of the six-axis robotic arm.

[0015] The suction cup fixture is fixedly connected to the execution end of the six-axis robot via a connecting plate, and a buffer module is fixed to the bottom of the connecting plate. A flat suction cup is fixed to the bottom of the buffer module for negative pressure adsorption of the product.

[0016] The main body is equipped with a bottom appearance visual inspection mechanism located at one end of the robot arm mechanism. The suction cup fixture of the robot arm mechanism will adsorb the product that has completed the front inspection on the feeding line and move it to the top of the bottom appearance visual inspection mechanism, so that the bottom appearance visual inspection mechanism can take pictures of the bottom of the product. The NG product placement mechanism is set on one side of the robot arm mechanism and is used to place NG products.

[0017] One end of the robotic arm mechanism is equipped with an NG (Not Found) item placement mechanism, which includes an installation frame, a partition placement frame, and an NG item placement frame.

[0018] The partition placement frame and the NG product placement frame are respectively fixed on the top two sides of the mounting frame. The partition placement frame has multiple sets of partitions stacked inside, and the NG product placement frame holds keyboard products that fail the brightness test. After each set of keyboard products is placed, a partition is stacked on top of it to isolate the keyboard products.

[0019] The NG product placement mechanism also includes an X-axis moving slide and a suction cup module. The X-axis moving slide is installed on the top of the mounting frame, and its sliding end is connected to a suction cup module for adsorbing keyboard products.

[0020] The NG product placement mechanism also includes two sets of lifting cylinders, which respectively lift the products inside the partition placement frame and the NG product placement frame.

[0021] By adopting the above technical solution, and through the cooperation of the top and bottom visual inspection mechanisms combined with the suction and transfer function of the robotic arm, automated continuous inspection of the front and back of products is achieved. This eliminates the need for manual flipping and multiple transfers, significantly improving inspection efficiency while avoiding potential damage from bumps during transport. The main camera can be precisely positioned via a lifting slide, camera front-to-back adjustment knob, and camera left-to-right adjustment knob. Four sets of side-illuminated plates can adjust height and angle to provide appropriate illumination, ensuring clear images, improving inspection accuracy, and reducing misjudgments. The robotic arm's buffer module cushions impacts during handling. The NG (non-conforming) product placement mechanism, through the cooperation of a partition placement frame and a suction cup module, places partitions on top of non-conforming products to isolate them, preventing wear between products and reducing the risk of secondary damage. The fully automated operation reduces manual intervention, is suitable for mass production, and effectively ensures inspection quality and efficiency.

[0022] Furthermore, an output conveyor line is provided inside the main body on one side of the bottom appearance visual inspection mechanism for discharging the product after inspection. Both the output conveyor line and the input conveyor line are composed of motor-driven conveyor belts, wherein the motor is an adjustable speed motor.

[0023] By adopting the above technical solution, a discharge assembly line is set up on one side of the visual inspection mechanism at the bottom of the main body, forming a complete closed loop of "feed-inspection-discharge" with the feeding assembly line. This layout allows the product to automatically flow to the next process without manual intervention after inspection, reducing manual handling, improving the automation level of the overall process, and reducing efficiency losses and errors that may be caused by human operation.

[0024] In summary, the present invention has the following main advantages: By combining the top and bottom visual inspection mechanisms with the suction and transfer function of the robotic arm, the present invention achieves automated continuous inspection of both sides of the product, eliminating the need for manual flipping and multiple transfers. This significantly improves inspection efficiency while avoiding potential damage from bumps during transport. The main camera can be precisely positioned via a lifting slide, camera front-to-back adjustment knob, and camera left-to-right adjustment knob. Four sets of side-emitting plates can adjust height and angle to provide suitable illumination, ensuring clear images, improving inspection accuracy, and reducing misjudgments. The buffer module of the robotic arm can cushion impacts during handling. The NG (non-conforming) product placement mechanism, through the cooperation of a partition placement frame and a suction cup module, places a partition on top of the non-conforming product to achieve isolation, preventing wear between products and reducing the risk of secondary damage. The fully automated operation reduces manual intervention, is suitable for mass production, and effectively ensures inspection quality and efficiency. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0026] Figure 2 This is a schematic diagram of the internal structure of the present invention;

[0027] Figure 3 This is a top view of the internal structure of the present invention;

[0028] Figure 4 This is an enlarged view of the structure of the top appearance visual inspection mechanism of the present invention;

[0029] Figure 5 This is an enlarged view of the structure of the side light source module of the present invention;

[0030] Figure 6 This is an enlarged view of the structure of the vision camera module of the present invention;

[0031] Figure 7 This is an enlarged view of the structure of the robotic arm mechanism of the present invention;

[0032] Figure 8 This is an enlarged view of the suction cup fixture of the present invention;

[0033] Figure 9 This is an enlarged view of the NG product placement mechanism of the present invention.

[0034] In the diagram: 1. Main body; 2. Feeding line; 3. Top visual inspection mechanism; 301. Square tube frame; 302. Vision camera module; 3021. Lifting slide; 3022. Camera front-to-back adjustment knob; 3023. Camera left-to-right adjustment knob; 3024. Main camera; 303. Side light source module; 3031. Connecting frame; 3032. Height adjustment slider; 3033. Rotating shaft; 3034. Side light-emitting plate; 3035. 1. Angle adjustment knob; 4. Robotic arm mechanism; 401. Six-axis robotic arm; 402. Suction cup fixture; 403. Connecting plate; 404. Buffer module; 405. Flat suction cup; 5. Bottom appearance visual inspection mechanism; 6. Discharge production line; 7. NG product placement mechanism; 701. Mounting frame; 702. Partition placement frame; 703. NG product placement frame; 704. X-axis moving slide; 705. Suction cup module; 706. Lifting cylinder. Detailed Implementation

[0035] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0036] The embodiments of the present invention will now be described.

[0037] Example 1

[0038] like Figure 1-9 As shown, the product front and back detection device provided in this embodiment takes keyboard products as the detection object. Through the coordinated operation of the vision inspection mechanism and the robotic arm mechanism, it realizes the automated detection and sorting of the front and back of the product. The specific structure is as follows:

[0039] The main body 1 adopts a frame structure built with aluminum profiles, and is internally divided into a feeding area, a detection area and a sorting area, providing installation benchmarks and protective space for each functional mechanism;

[0040] The feeding line 2 is installed at one corner of the main body 1 and consists of a conveyor belt driven by an adjustable speed motor. It is used to continuously transport the keyboard products to be tested to the testing station. Guide plates are provided on both sides of the belt to prevent the products from shifting during the transport process.

[0041] The discharge line 6 is located inside the main body 1 on one side near the bottom visual inspection mechanism 5. Its structure is the same as that of the infeed line 2. It is used to transport keyboard products that have passed inspection.

[0042] Top appearance visual inspection mechanism 3

[0043] The square tube frame 301 is fixedly installed above the feeding line 2 to provide support for the vision camera module 302 and the side light source module 303;

[0044] Visual camera module 302:

[0045] It includes a lifting slide 3021, a camera front and rear adjustment knob 3022, a camera left and right adjustment knob 3023, and a main camera 3024;

[0046] The lifting slide 3021 is installed on the top of the square tube frame 301 and can adjust the height of the main camera 3024. The front and rear adjustment knob 3022 and the left and right adjustment knob 3023 are used to fine adjust the front and rear and left and right positions of the main camera 3024, respectively, to ensure that the main camera 3024 is aligned with the product to be inspected on the feed line 2. The main camera 3024 is used to take pictures of the front of the keyboard product conveyed to the bottom and collect appearance image information.

[0047] Side light source module 303:

[0048] It includes a connecting frame 3031, a height adjustment slider 3032, a rotating shaft 3033, a side light-emitting plate 3034, and an angle adjustment knob 3035;

[0049] The connecting frame 3031 is fixed on the square tube frame 301. The height adjustment slider 3032 is slidably connected to the connecting frame 3031 and can be adjusted in the vertical direction. One end of the rotating shaft 3033 is movably connected to the height adjustment slider 3032, and the other end is fixed to the middle of the back of the side light-emitting plate 3034. The angle adjustment knob 3035 is fixed to the end of the rotating shaft 3033. There are four sets of side light-emitting plates 3034, which are located on the four sides of the connecting frame 3031. The height is adjusted by the height adjustment slider 3032, and the angle adjustment knob 3035 drives the rotating shaft 3033 to rotate to adjust the light-emitting angle, so as to provide uniform illumination to the front edge of the keyboard product and ensure that the image captured by the main camera 3024 is clear.

[0050] Robotic arm mechanism 4:

[0051] It includes a six-axis robotic arm 401, a suction cup fixture 402, a connecting plate 403, a buffer module 404, and a flat suction cup 405;

[0052] The six-axis robot 401 is placed on the platform inside the main body 1. Its execution end is connected to the suction cup fixture 402 through the connecting plate 403. The buffer module 404 is fixed to the bottom of the connecting plate 403. The flat suction cup 405 is installed at the bottom of the buffer module 404. The flat suction cup 405 uses negative pressure to adsorb the keyboard product that has been inspected from the front. The six-axis robot 401 moves it. The buffer module 404 can provide cushioning when adsorbing and placing the product to avoid damaging the product.

[0053] The bottom appearance visual inspection mechanism 5 is located inside the main body 1 near one end of the robotic arm mechanism 4. Its structure is similar to that of the top appearance visual inspection mechanism 3. It is used to take pictures and inspect the bottom of the keyboard product after it has been moved by the robotic arm mechanism 4, and collect bottom appearance information.

[0054] The NG item placement mechanism 7 is installed on one side of the robot arm mechanism 4, and includes a mounting frame 701, a partition placement frame 702, an NG item placement frame 703, an X-axis moving slide 704, a suction cup module 705, and a lifting cylinder 706.

[0055] The mounting frame 701 serves as the supporting foundation for the entire mechanism. The partition placement frame 702 and the NG product placement frame 703 are fixed on both sides of the top of the mounting frame 701, respectively. Multiple sets of partitions are stacked inside the partition placement frame 702, and the NG product placement frame 703 is used to place keyboard products that fail the inspection.

[0056] The X-axis moving slide 704 is mounted on the top of the mounting frame 701. Its sliding end is connected to a suction cup module 705. The suction cup module 705 is used to adsorb the spacers from inside the spacer placement frame 702. A group of NG products are stacked in the NG placement frame 703 in the manner of one spacer per group.

[0057] There are two sets of lifting cylinders 706, which correspond to the partition placement frame 702 and the NG product placement frame 703 respectively. They are used to lift the partitions in the partition placement frame 702 and the products in the NG product placement frame 703 to facilitate the suction cup module 705 to pick up and put in the products.

[0058] Product feeding and front-side inspection

[0059] The keyboard product to be inspected is placed on the feeding line 2 and transported by the feeding line 2 to the bottom of the top appearance visual inspection mechanism 3. The four sets of side light-emitting plates 3034 are turned on to provide illumination for the front edge of the keyboard product. The main camera 3024 takes a picture of the front of the keyboard product, obtains the front appearance image and transmits it to the control system for analysis and inspection.

[0060] Product bottom inspection

[0061] After the front inspection is completed, the six-axis robot 401 drives the suction cup fixture 402 to move above the feeding line 2. The flat suction cup 405 uses negative pressure to adsorb the keyboard product. The six-axis robot 401 moves the keyboard product to directly above the bottom appearance visual inspection mechanism 5. The bottom appearance visual inspection mechanism 5 takes pictures of the bottom of the keyboard product, obtains the bottom appearance image, and transmits it to the control system for analysis.

[0062] Qualified product discharge and non-compliant product handling

[0063] If the control system determines that the product is qualified, the six-axis robot 401 will transfer the keyboard product to the unloading production line 6, and the unloading production line 6 will transport it to the next process.

[0064] If the control system determines that the product is unqualified, the six-axis robot 401 will move the keyboard product to the bottom of the NG placement frame 703 of the NG product placement mechanism 7. At this time, the X-axis moving slide 704 will drive a set of partitions to be picked up from inside the partition placement frame 702 and moved to the top of the unqualified product in the NG product placement frame 703 to achieve product isolation. During this period, the lifting cylinder 706 will lift the partitions in the partition placement frame 702 and the product in the NG product placement frame 703 as needed to facilitate the suction cup module 705 to pick up and put down the product.

[0065] Although embodiments of the present invention have been shown and described, these specific embodiments are merely explanations of the invention and are not intended to limit it. The specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions, and variations to the embodiments as needed without departing from the principles and spirit of the invention, but such modifications, substitutions, and variations are protected by patent law as long as they are within the scope of the claims of the present invention.

Claims

1. A product front and back detection device, characterized in that, include: The main body (1) and the feeding line (2) set at one corner of it are used to transport the products to be inspected. A top appearance visual inspection mechanism (3) is set above the feeding line (2), and the main camera (3024) of the top appearance visual inspection mechanism (3) is located above the feeding line (2), which plays the role of taking pictures and inspecting the products located at the top of the feeding line (2). A robotic arm mechanism (4) is provided in the middle of the main body (1). A bottom appearance visual inspection mechanism (5) is provided at one end of the robotic arm mechanism (4) inside the main body (1). The suction cup fixture (402) of the robotic arm mechanism (4) will adsorb the product that has completed the front inspection on the feed line (2) and move it to the top of the bottom appearance visual inspection mechanism (5), so that the bottom appearance visual inspection mechanism (5) can take pictures of the bottom of the product. An NG product placement mechanism (7) is provided on one side of the robotic arm mechanism (4) for placing NG products.

2. The product front and back detection device according to claim 1, characterized in that: The top appearance visual inspection mechanism (3) includes a square tube frame (301) that provides support; A vision camera module (302) is installed on one side of the top of the square tube frame (301), and a side light source module (303) is installed on the vision camera module (302). The vision camera module (302) includes a main camera (3024) for taking pictures and detecting the front of the product, and the side light source module (303) includes a side light-emitting plate (3034) for illuminating the edge of the product.

3. The product front and back detection device according to claim 2, characterized in that: The vision camera module (302) also includes a lifting slide (3021) for adjusting the height of the main camera (3024), a camera front-back adjustment knob (3022) for adjusting the front-back position of the main camera (3024), and a camera left-right adjustment knob (3023) for adjusting the left-right position of the main camera (3024).

4. The product front and back detection device according to claim 2, characterized in that: The side light source module (303) also includes a connecting frame (3031) for mounting the side light-emitting plate (3034), and the connecting frame (3031) is fixed on the square tube frame (301); A rotating shaft (30333) is fixed at the middle position of the back of the side light-emitting plate (3034), and a height adjustment slider (3032) that is movably connected to the outside of the rotating shaft (3033) and adjusted for lifting and lowering by the connecting frame (3031) is provided. An angle adjustment knob (3035) is fixed at the end of the rotating shaft (3033). There are four sets of side-emitting panels (3034) located on the four sides of the connecting frame (3031).

5. The product front and back detection device according to claim 1, characterized in that: The robotic arm mechanism (4) consists of a six-axis robotic arm (401) placed on a platform, wherein a suction cup fixture (402) is fixed to the execution end of the six-axis robotic arm (401).

6. The product front and back detection device according to claim 5, characterized in that: The suction cup fixture (402) is fixedly connected to the execution end of the six-axis robot (401) via a connecting plate (403), and a buffer module (404) is fixed at the bottom of the connecting plate (403), and a flat suction cup (405) is fixed at the bottom of the buffer module (404) for negative pressure adsorption of the product.

7. The product front and back detection device according to claim 1, characterized in that: The main body (1) has an output line (6) located on one side of the bottom appearance visual inspection mechanism (5) inside, which is used to output the product after the inspection is completed. Both the output line (6) and the input line (2) are composed of motor-driven conveyor belts, and the motor is an adjustable speed motor.

8. The product front and back detection device according to claim 1, characterized in that: The robotic arm mechanism (4) is provided with an NG item placement mechanism (7) at one end. The NG item placement mechanism (7) includes an installation frame (701), a partition placement frame (702), and an NG item placement frame (703). The partition placement frame (702) and the NG product placement frame (703) are respectively fixed on the top two sides of the mounting frame (701). The partition placement frame (702) has multiple sets of partitions stacked inside. The NG product placement frame (703) holds keyboard products that fail the brightness test. After each set of keyboard products is placed, a set of partitions is stacked on top of it to isolate the keyboard products.

9. The product front and back detection device according to claim 8, characterized in that: The NG product placement mechanism (7) further includes an X-axis moving slide (704) and a suction cup module (705). The X-axis moving slide (704) is mounted on the top of the mounting frame (701), and its sliding end is connected to a suction cup module (705) for adsorbing keyboard products.

10. The product front and back detection device according to claim 8, characterized in that: The NG product placement mechanism (7) also includes two sets of lifting cylinders (706), which respectively lift the products inside the partition frame (702) and the NG product placement frame (703).

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