Intelligent quality inspection equipment for mass parts

Abstract

The utility model relates to intelligent quality inspection equipment for mass parts, and particularly discloses a visual inspection device and a visual inspection plate, the visual inspection device comprises a light source and cameras, the visual inspection plate is a transparent plate, a plurality of cameras are respectively arranged on the upper side and the lower side of the visual inspection plate to form an upper camera group and a lower camera group, the upper camera group comprises a first side camera, and the lower camera group comprises a second side camera. The lower camera group comprises a second side camera, the first side camera and the second side camera are distributed left and right relative to the center of the visual inspection plate, the two light sources are arranged on the front side and the rear side of the visual inspection plate respectively, and the light sources, the first side camera and the second side camera are arranged in a staggered mode under overlook observation. According to the utility model, the light source, the first side camera and the second side camera are arranged in a staggered manner, so that the influence of reflected light rays generated when the light source irradiates the visual inspection table on imaging of the cameras can be avoided, the imaging effect of parts is ensured, and the recognition accuracy of the visual inspection device is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of part sorting, and specifically relates to an intelligent quality inspection device for a large number of parts. Background Art

[0002] In recent years, the development of artificial intelligence (AI) technology has brought revolutionary progress to machine vision. The vision recognition system based on deep learning can realize the efficient recognition and intelligent classification of complex features of parts, significantly improving the sorting efficiency and accuracy of sorting equipment.

[0003] The Chinese patent application with the publication number of CN114082669A discloses a robot sorting system with a flexible feeding mechanism, including a flexible feeding mechanism and a vision system. The flexible feeding system is used to re-layout the part materials stacked together from upstream equipment; the vision system includes an image acquisition module, and the image acquisition module can be a camera, a video camera, a camera module integrated with an optical system or a CCD chip, a camera module integrated with an optical system and a CMOS chip, etc. The vision system can judge whether each part material meets the picking requirements according to the image information of the part materials in the flexible feeding mechanism collected, and determine the type of the end effector of the robot system. It can also determine the quantity and graspable posture of the part materials according to the collected part material images.

[0004] By setting the flexible feeding mechanism, the above sorting system can reorder the positions, postures, etc. of the part materials stacked together in a disorderly manner, so as to convert from 3D to 2D / 2.5D with a limited number of postures, facilitating the vision system to accurately and quickly obtain information such as the position and posture of the parts, and realizing high-efficiency picking work by the robot system.

[0005] However, during the use of the image acquisition module, when the light source irradiates the flexible feeding mechanism and the parts, it will generate light, which affects the imaging of the parts in the image acquisition module, resulting in a decrease in the recognition accuracy of the image acquisition module, and thus a decrease in the sorting accuracy of the parts. Summary of the Utility Model

[0006] The utility model provides an intelligent quality inspection device for a large number of parts to solve the technical problems of poor part imaging effect and low recognition accuracy.

[0007] To solve the above technical problems, the intelligent quality inspection device for a large number of parts provided by this application includes: a vision inspection device and a vision inspection board for receiving parts. The vision inspection device is used to collect the part status information on the vision inspection board and transmit it to the controller. The vision inspection device includes a light source and a camera. The vision inspection board is a transparent board. There are multiple cameras, which are respectively arranged on the upper and lower sides of the vision inspection board to form upper and lower camera groups. The upper camera group includes a first side camera. The lower camera group includes a second side camera. The first side cameras are distributed left and right relative to the center of the vision inspection board. The second side cameras are distributed left and right relative to the center of the vision inspection board. There are two light sources, which are respectively arranged on the front and back sides of the vision inspection board. When viewed from above, the light sources are arranged in a staggered manner with the first side camera and the second side camera.

[0008] By adopting the above technical solution, the beneficial effect is that by arranging the light sources in a staggered manner with the first side camera and the second side camera, it is possible to avoid the influence of the reflected light generated by the light source irradiating on the vision inspection table on the imaging of the camera, ensuring the imaging effect of the parts, and thus ensuring the accuracy of the recognition by the vision inspection device.

[0009] Optionally, the upper camera group further includes a central camera arranged above the central position of the vision inspection board. The central camera is used for counting the parts and identifying the positions of the parts.

[0010] Optionally, there are three first side cameras, which are respectively arranged on the right side, the left front side, and the left rear side of the center of the vision inspection board. There are three second side cameras, which are respectively arranged on the left side, the right front side, and the right rear side of the center of the vision inspection board.

[0011] Optionally, there are three first side cameras, which are respectively arranged on the right side, the left front side, and the left rear side of the center of the vision inspection board. The second side cameras are correspondingly arranged on the lower sides of the first side cameras.

[0012] By adopting the above technical solution, the beneficial effect is that by arranging multiple cameras, it is possible to improve the imaging effect of the parts and the accuracy of the recognition by the vision inspection device.

[0013] Optionally, the light source includes a supplementary light and a bracket. The bracket includes two columns distributed left and right. The supplementary light is rotationally assembled on the columns.

[0014] Optionally, the supplementary light is in a strip structure.

[0015] By adopting the above technical solution, the beneficial effects are as follows: By setting up fill lights and arranging the fill lights in a strip structure, it is possible to better illuminate the parts on the visual inspection board, soften or eliminate the shadows on the parts, enhance the overall brightness of the parts, and thus improve the imaging effect of the parts. When the quality inspection equipment is used in different usage scenarios, the brightness of the detection area can be adjusted by rotating the angle of the fill lights to ensure that the parts have a good imaging effect, and it has good applicability.

[0016] Optionally, it further includes: a quantitative feeding device and a vibration mechanism for driving the visual inspection board to vibrate; the vibration mechanism includes a vibration source arranged at the edge position of the visual inspection board, and the vibration source provides power in the up and down direction to drive the visual inspection board to vibrate up and down to disperse the parts; the quantitative feeding device is used to convey a preset amount of parts to the visual inspection board each time, and the parts of the preset amount, after being dispersed on the visual inspection board, occupy at most 70% of the total area of the visual inspection board.

[0017] By adopting the above technical solution, the beneficial effects are as follows: By limiting the preset amount of the quantitative feeding mechanism, it can ensure that the number of parts conveyed to the visual inspection board each time is not too large, avoiding the situation that too many parts cause the vibration mechanism to be unable to disperse the parts. Moreover, each time a preset amount of parts is conveyed, no additional adjustment process is required, which can shorten the quality inspection time and thus improve the quality inspection efficiency; the vibration mechanism can drive the visual inspection board to vibrate up and down to disperse the parts, preventing the parts from stacking on the visual inspection board and affecting the recognition effect of the visual inspection device.

[0018] Optionally, the vibration source is configured as: at least four are distributed at the four corners of the same rectangle below the visual inspection board, and the vibration frequency of each vibration source is 1 - 300 Hz.

[0019] By adopting the above technical solution, the beneficial effects are as follows: By arranging the vibration sources at the four corners of the visual inspection board, the vibration at the four corners of the visual inspection board is more intense than that at the central position, so that the parts on the visual inspection board can move closer to the center of the visual inspection board, facilitating the detection and recognition by the visual inspection device, and the quality inspection is more efficient; by limiting the vibration frequency of the vibration source, it can ensure that the parts on the visual inspection board are dispersed, so that the parts are separated from each other and no stacking phenomenon occurs, improving the recognition accuracy.

[0020] Optionally, the parts of the preset amount, after being dispersed on the visual inspection board, occupy at most 40% - 45% of the total area of the visual inspection board.

[0021] By adopting the above technical solution, the beneficial effects are as follows: By making the above limitation on the preset amount, it can ensure that the parts on the visual inspection board are separated from each other after being dispersed and no stacking situation occurs, facilitating the detection and recognition by the visual inspection device, and thus improving the accuracy of the quality inspection.

[0022] Optionally, a limiting mechanism is also included; the limiting mechanism includes a limiting frame rotatably arranged between the quantitative feeding device and the inspection plate, the limiting frame having a side wall arranged in an annular manner and having two states: a lowered position and a raised position: when the limiting frame is in the lowered position, the side wall of the limiting frame forms a blocking edge so that the parts conveyed to the inspection plate are restricted on the inspection plate in the limiting frame; when the limiting frame is in the raised position, the limiting frame is located above the inspection plate and away from the inspection plate so that the limiting frame avoids the inspection area between the inspection plate and the visual inspection device.

[0023] By adopting the above technical solution, the beneficial effect is that the limiting mechanism can limit the parts output from the discharge end of the quantitative feeding mechanism to the inspection plate in the limiting frame, thereby improving the recognition effect and accuracy of the visual inspection device. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] By reading the detailed description below with reference to the accompanying drawings, the above and other purposes, features and advantages of the exemplary embodiments of the present invention will become easy to understand. In the accompanying drawings, several embodiments of the present invention are shown in an exemplary and non-limiting manner, and the same or corresponding reference numerals represent the same or corresponding parts, wherein:

[0025] Figure 1 It is a three-dimensional structural schematic diagram of the quality inspection equipment of the utility model;

[0026] Figure 2 It is a top view of the quality inspection equipment of the utility model;

[0027] Figure 3 It is a side view of the quality inspection equipment of the utility model;

[0028] Figure 4 It is a schematic top view of the first side camera, the visual inspection plate and the light source in the quality inspection equipment of the utility model;

[0029] Figure 5 This is a front view of the first side camera, the visual inspection plate and the light source in the quality inspection equipment of the utility model;

[0030] Figure 6 It is a top view of the first side camera, the second side camera and the visual inspection plate in the quality inspection equipment of the utility model;

[0031] Figure 7 It is a three-dimensional structural schematic diagram of the limiting mechanism of the utility model;

[0032] Figure 8 This is a structural schematic diagram of the limit mechanism of the utility model in the descending position;

[0033] Figure 9 This is a structural schematic diagram of the limit mechanism of the utility model in the raised position;

[0034] Figure 10 Schematic perspective view of the rapid discharging device of the present utility model;

[0035] Figure 11 Schematic internal structure view of the rapid discharging device of the present utility model;

[0036] Figure 12 Schematic perspective view of the reversing member of the present utility model.

[0037] Explanation of reference numerals:

[0038] 1, frame; 2, visual inspection plate; 3, quantitative feeding device; 4, visual inspection device; 41, upper camera group; 411, central camera; 412, first side camera; 42, lower camera group; 421, second side camera; 43, light source; 431, fill light; 432, column; 5, limiting mechanism; 51, limiting frame; 52, guiding member; 53, limiting motor; 6, rapid discharging device; 61, pushing mechanism; 611, linear module; 6111, pushing motor; 612, pushing plate; 62, qualified part channel; 63, problem part channel; 64, reversing valve; 641, inlet; 642, first outlet; 643, second outlet; 644, reversing member; 6441, rotating shaft; 6442, partition plate; 6443, sealing plate; 6444, reversing motor; 7, picking device; 8, bin; 9, feeding device; 10, manipulator; 11, vibration source. Detailed implementation manners

[0039] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Those skilled in the art should know that the embodiments described below are part of the embodiments of the present disclosure, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative efforts shall fall within the protection scope of the present utility model.

[0040] Next, with reference to several representative implementation manners of the present utility model, the principles and spirits of the present utility model will be elaborated in detail.

[0041] Embodiment 1 of the intelligent quality inspection equipment for a large number of parts provided by the present utility model (hereinafter simply referred to as quality inspection equipment):

[0042] As Figures 1 to 12 shown, the quality inspection equipment includes a frame 1, a bin 8, a feeding device 9, a first quality inspection device, a rapid discharging device 6, a second quality inspection device, and a picking device 7. It is defined that the direction in which the parts move from the bin 8 to the first quality inspection device in the horizontal direction is from left to right, and the direction in which the parts move from the first quality inspection device to the second quality inspection device is from front to back.

[0043] As Figure 1 and Figure 2 shown, the first quality inspection device is located in the upper right of the bin 8, and is connected to the bin 8 through a feeding device 9. The feeding device 9 is used to convey parts from the bin 8 to the first quality inspection device. In this embodiment, the feeding device 9 is an existing scraper conveyor. In other embodiments, the feeding device 9 can also be an existing spiral auger conveyor or a bucket elevator.

[0044] The first quality inspection device and the second quality inspection device are connected end to end, and a quick discharging device 6 is arranged between them. A picking device 7 is arranged at the rear side of the second quality inspection device, and is used to pick out unqualified parts in the second quality inspection device.

[0045] As Figures 1 to 9 shown, the first quality inspection device includes a quantitative feeding device 3, a limiting mechanism 5, a visual inspection plate 2, a vibration mechanism and a vision detection device 4.

[0046] The quantitative feeding device 3 is arranged at the discharging end of the feeding device 9, and is used to convey a preset quantity of parts to the visual inspection plate 2 each time. The quantitative feeding device 3 is an existing technology and will not be elaborated here. The number of parts conveyed by the quantitative feeding device 3 each time is preset. The setting condition of the preset quantity is: to ensure that the parts conveyed to the visual inspection plate 2 are scattered on the visual inspection plate 2 and at most occupy 70% of the total area of the visual inspection plate 2. Preferably, the preset quantity of parts, after being scattered on the visual inspection plate 2, at most occupies 40% - 45% of the total area of the visual inspection plate 2. By limiting the preset quantity as above, it can be ensured that the parts on the visual inspection plate 2 are separated from each other after being scattered and will not be stacked, which is convenient for the detection and recognition of the vision detection device 4, thereby improving the accuracy of quality inspection.

[0047] The visual inspection plate 2 is correspondingly arranged at the discharging end of the quantitative feeding device 3, and is used to receive the parts output from the quantitative feeding device 3. The visual inspection plate 2 is a transparent plate.

[0048] The limiting mechanism 5 is arranged between the quantitative feeding device 3 and the visual inspection plate 2, and includes a limiting motor 53, a limiting frame 51 and a guiding member 52.

[0049] The limit frame 51 is rotationally assembled on the frame 1, and the limit frame 51 has a circumferentially arranged side wall. The limit motor 53 can adjust the rotational position of the limit frame 51 so that the limit frame 51 has two states: a lowered position and a raised position. When the quantitative feeding device 3 needs to convey parts to the visual inspection plate 2, the limit motor 53 drives the limit frame 51 to rotate counterclockwise, making the limit frame 51 in the lowered position; when it is necessary to perform quality inspection and identification on the parts on the visual inspection plate 2, the limit motor 53 drives the limit frame 51 to rotate clockwise, making the limit frame 51 in the raised position. When the limit frame 51 is in the lowered position, the side wall of the limit frame 51 can form a retaining edge to cover the visual inspection plate 2, restricting the falling range of the parts conveyed to the visual inspection plate 2, so that the parts conveyed to the visual inspection plate 2 are restricted to the visual inspection plate 2 within the limit frame 51; when the limit frame 51 is in the raised position, the limit frame 51 is located above the visual inspection plate 2 and away from the visual inspection plate 2, so that the limit frame 51 can avoid the detection area between the visual inspection plate 2 and the vision detection device 4, preventing the limit frame 51 from blocking the detection area and affecting the identification result of the vision detection device 4.

[0050] The material guiding member 52 is arranged between the limit frame 51 and the quantitative feeding device 3. The material guiding member 52 has a feeding port and a discharging port. The feeding port is correspondingly arranged with the discharging end of the quantitative feeding device 3, and the discharging port is correspondingly arranged with the limit frame 51. When the limit frame 51 is in the lowered position, the material guiding member 52 can guide the falling path of the parts output from the quantitative feeding device 3, so that the parts fall onto the visual inspection plate 2 within the limit frame 51. In this embodiment, the material guiding member 52 is composed of four side plates and is integrally formed with the limit frame 51. When the limit frame 51 rotates under the action of the limit motor 53, the material guiding member 52 rotates synchronously with the limit frame 51. In other embodiments, the material guiding member 52 can be a corrugated pipe structure.

[0051] The vibration mechanism is fixedly arranged on the frame 1. The vibration mechanism includes a vibration source 11. The vibration source 11 is located below the visual inspection plate 2 and is arranged at the edge position of the visual inspection plate 2. At least four vibration sources 11 are distributed at the four corners of the same rectangle of the visual inspection plate 2, and the vibration frequency of each vibration source 11 is 1 - 300 Hz. By arranging the vibration source 11 at the edge position of the visual inspection plate 2, the vibration at the edge position of the visual inspection plate 2 is more intense than that at the central position, so that the parts on the visual inspection plate 2 can move closer to the center of the visual inspection plate 2, facilitating the detection and identification by the vision detection device 4 and making the quality inspection more efficient; by limiting the vibration frequency of the vibration source 11, it can be ensured that the parts on the visual inspection plate 2 are shaken apart so that the parts are separated from each other and do not stack up.

[0052] As Figures 1 to 6 shown, the vision detection device 4 includes a light source 43, an upper camera group 41 arranged on the upper side of the visual inspection plate 2, and a lower camera group 42 arranged on the lower side of the visual inspection plate 2. Two light sources 43 are provided and are respectively arranged on the front and rear sides of the visual inspection plate 2.

[0053] As Figure 4 and Figure 5 shown, the light source includes a fill light 431 and a bracket. The bracket includes two columns 432 distributed left and right, and the fill light 431 is rotatably assembled on the columns 432. The fill light 431 is in a strip structure, and the length of the fill light 431 is not less than the length of the visual inspection plate 2 in the left - right direction. Through the above arrangement, it is possible to better illuminate the parts on the visual inspection plate 2, soften or eliminate the shadows on the parts, enhance the overall brightness of the parts, and thus improve the imaging effect of the parts.

[0054] When the quality inspection equipment is used in different usage scenarios, the brightness of the detection area can be adjusted by rotating the angle of the fill light 431 to ensure that the parts have a good imaging effect, and it has good applicability.

[0055] As Figures 4 to 6 shown, the upper camera group 41 includes a central camera 411 and a first side camera 412. The central camera 411 is arranged above the central position of the visual inspection plate 2 and is used to count the parts on the visual inspection plate 2 and identify the positions of the parts. The first side cameras 412 are distributed left and right relative to the center of the visual inspection plate 2. There are three first side cameras 412, which are respectively arranged on the right side, the left front side, and the left rear side of the center of the visual inspection plate 2.

[0056] The lower camera group 42 includes second side cameras 421. The second side cameras 421 are distributed left and right relative to the center of the visual inspection plate 2. There are three second side cameras 421, which are respectively arranged on the left side, the right front side, and the right rear side of the center of the visual inspection plate 2.

[0057] By setting multiple cameras, the imaging effect of the parts can be improved, and the recognition accuracy of the vision detection device 4 can be improved. Moreover, through the above - mentioned setting, the light sources 43 on both sides of the visual inspection plate 2 and the cameras are arranged in a staggered manner, which can avoid the influence of the reflected light generated by the light source 43 irradiating on the visual inspection table on the imaging of the cameras, ensure the imaging effect of the parts, and thus ensure the recognition accuracy of the vision detection device 4.

[0058] Each camera is signal - connected to the controller. Each camera can collect the status information of the parts (including the position information of the parts and the real - time image information of the parts when passing through the vision detection device 4), and transmit the status information to the controller in the form of signals.

[0059] The second quality inspection device adopts the same structure as the first quality inspection device, and will not be elaborated here.

[0060] As Figures 10 to 12 shown, the rapid discharging device 6 includes a pushing mechanism 61, a reversing valve 64, a qualified part channel 62, and a problem part channel 63.

[0061] The material pushing mechanism 61 is arranged on the right side of the visual inspection plate 2 and includes a linear module 611 and a pushing plate 612. The linear module 611 includes a slide rail, a slider, and a material pushing motor 6111. The slide rail is fixedly installed on the frame 1, the slider can move back and forth along the slide rail, and the material pushing motor 6111 is signal-connected to the controller for driving the slider to move back and forth. The pushing plate 612 is located above the visual inspection plate 2 and is fixedly connected to the slider. In the initial state, the pushing plate 612 is located on the front side of the visual inspection plate 2.

[0062] The reversing valve 64 includes a material inlet 641, a first outlet 642, a second outlet 643, a reversing motor 6444 signal-connected to the controller, and a reversing member 644. The material inlet 641 is arranged at the discharge end of the visual inspection plate 2. The first outlet 642 is communicated with the qualified part channel 62, and the second outlet 643 is communicated with the unqualified parts. The reversing member 644 includes a rotating shaft 6441, two partition plates 6442 fixedly arranged at intervals along the circumferential direction of the rotating shaft 6441, and two sealing plates 6443 arranged at intervals along the axial direction of the rotating shaft 6441. The two partition plates 6442 are arranged in a V shape, and the two partition plates 6442 and the two sealing plates 6443 can form a blocking cavity. The rotating shaft 6441 is rotationally assembled on the frame 1 and is connected to the output end of the reversing motor 6444. The reversing motor 6444 drives the rotating shaft 6441 to rotate, enabling the blocking cavity to communicate with the first outlet 642 / the second outlet 643, thereby realizing the blocking of the first outlet 642 / the second outlet 643.

[0063] When the vision detection device 4 detects unqualified parts on the visual inspection plate 2, the controller sends control signals to the reversing motor 6444 and the material pushing motor 6111. The material pushing motor 6111 drives the slider to move backward, and then drives the pushing plate 612 to move backward. The pushing plate 612 pushes all the parts on the visual inspection plate 2 into the material inlet 641 of the reversing valve 64 at one time. At the same time, the reversing motor 6444 drives the rotating shaft 6441 to rotate, enabling the blocking cavity to communicate with the first outlet 642, thereby blocking the first outlet 642. At this time, the material inlet 641 is communicated with the second outlet 643, and the parts entering the reversing valve 64 through the material inlet 641 are conveyed to the problem part channel 63 through the second outlet 643;

[0064] When the visual inspection device 4 does not find unqualified parts on the inspection plate 2, the controller sends control signals to the reversing motor 6444 and the pusher motor 6111. The pusher motor 6111 drives the slider to move backward, and then drives the push plate 612 to move backward. The push plate 612 pushes all the parts on the inspection plate 2 into the feed port 641 of the reversing valve 64 at one time. At the same time, the reversing motor 6444 drives the rotating shaft 6441 to rotate to connect the plugging cavity to the second outlet 643, thereby plugging the second outlet 643. At this time, the feed port 641 is connected to the first outlet 642, and the parts entering the reversing valve 64 through the feed port 641 are conveyed to the qualified part channel 62 through the first outlet 642.

[0065] After the push plate 612 pushes the parts on the inspection plate 2 into the feed port 641, the pusher motor 6111 drives the slider to move forward, and then drives the push plate 612 to move forward to reset the push plate 612.

[0066] The qualified part channel 62 is connected to the qualified part collection box for storing qualified parts, and is used to convey the qualified parts into the qualified part collection box. The problem part channel 63 is connected to the quantitative feeding device 3 of the second quality inspection device, and is used to convey the batch containing unqualified parts to the second quality inspection device for re-inspection and sorting.

[0067] The picking device 7 is arranged at the rear side of the second quality inspection device and includes a manipulator 10 and a discharging mechanism. The manipulator 10 is a prior art and will not be described in detail here. The manipulator 10 is signal-connected to the controller and is used to pick out the unqualified parts on the inspection plate 2 of the second quality inspection device. The structure of the discharging mechanism is the same as that of the pusher mechanism 61 of the quick discharging device 6, including a linear module 611 and a push plate 612, and will not be described in detail.

[0068] In the second quality inspection device, when the visual inspection device 4 finds unqualified parts on the inspection plate 2, the controller controls the manipulator 10 to pick out the unqualified parts on the inspection plate 2 and move them into the problem part collection box for storing unqualified parts; when no qualified parts are found on the inspection plate 2, the controller controls the push plate 612 to push all the parts on the inspection plate 2 into the qualified part collection box.

[0069] Embodiment 2 of the quality inspection equipment provided by the present utility model:

[0070] The difference between it and Embodiment 1 is mainly that: in this embodiment, the number of the first / second side cameras can be adjusted according to the use scenario, for example, it can be set to two, four, etc.

[0071] Embodiment 3 of the quality inspection equipment provided by the present utility model:

[0072] The main difference from Embodiment 1 is that: in this embodiment, the second side camera 421 is arranged vertically corresponding to the first side camera 412, that is, the second side cameras 421 are respectively arranged on the right side, the left front side and the left rear side of the center of the visual inspection board 2.

Claims

1. Intelligent quality inspection equipment for a large number of parts, including a visual inspection device (4) and a visual inspection plate (2) for receiving parts. The visual inspection device (4) is used to collect the part status information on the visual inspection plate (2) and transmit it to the controller. The visual inspection device (4) includes a light source (43) and a camera, and is characterized in that, The visual inspection board (2) is a transparent board. There are multiple cameras, which are respectively arranged on the upper and lower sides of the visual inspection board (2) to form an upper camera group (41) and a lower camera group (42); the upper camera group (41) includes a first side camera (412); the lower camera group (42) includes a second side camera (421); the first side camera (412) is distributed left and right relative to the center of the visual inspection board (2); the second side camera (421) is distributed left and right relative to the center of the visual inspection board (2). There are two light sources (43), which are respectively arranged on the front and rear sides of the visual inspection board (2). When viewed from above, the light sources (43) are arranged in a staggered manner with the first side camera (412) and the second side camera (421).

2. The intelligent quality inspection device for a large number of parts according to claim 1, characterized in that, The upper camera group (41) further includes a central camera (411) arranged above the central position of the visual inspection board (2), and the central camera (411) is used for counting parts and identifying the positions of parts.

3. The intelligent quality inspection device for a large number of parts according to claim 1, characterized in that, There are three first side cameras (412), which are respectively arranged on the right side, the left front side, and the left rear side of the center of the visual inspection board (2); there are three second side cameras (421), which are respectively arranged on the left side, the right front side, and the right rear side of the center of the visual inspection board (2).

4. The intelligent quality inspection device for a large number of parts according to claim 1, characterized in that, There are three first side cameras (412), which are respectively arranged on the right side, the left front side, and the left rear side of the center of the visual inspection board (2); the second side cameras (421) are correspondingly arranged on the lower sides of the first side cameras (412).

5. The intelligent quality inspection device for a large number of parts according to claim 1, characterized in that, The light source (43) includes a supplementary light (431) and a bracket. The bracket includes two columns (432) distributed left and right, and the supplementary light (431) is rotationally assembled on the columns (432).

6. The intelligent quality inspection device for a large number of parts according to claim 5, characterized in that, The supplementary light (431) is in a strip structure.

7. The intelligent quality inspection device for mass-produced parts according to claim 1, wherein, It further includes: A quantitative feeding device (3) and a vibration mechanism for driving the visual inspection board (2) to vibrate; The vibration mechanism includes a vibration source (11) arranged at the edge position of the visual inspection board (2). The vibration source (11) provides power in the up and down direction to drive the visual inspection board (2) to vibrate up and down to scatter the parts; The quantitative feeding device (3) is used for feeding a preset amount of parts to the visual inspection board (2) each time. After the preset amount of parts are scattered on the visual inspection board (2), they occupy at most 70% of the total area of the visual inspection board (2).

8. The intelligent quality inspection device for a large number of parts according to claim 7, characterized in that, The vibration source (11) is configured to: at least four are distributed at the four corners of the same rectangle below the visual inspection board (2), and the vibration frequency of each vibration source (11) is 1 - 300 Hz.

9. The intelligent quality inspection device for a large number of parts according to claim 7, characterized in that, After the preset amount of parts are scattered on the visual inspection board (2), they occupy at most 40% - 45% of the total area of the visual inspection board (2).

10. The intelligent quality inspection device for a large number of parts according to claim 1, characterized in that, The invention also comprises a limiting mechanism (5); the limiting mechanism (5) comprises a limiting frame (51) rotatably arranged between the quantitative feeding device (3) and the visual inspection plate (2); the limiting frame (51) has a side wall arranged in an annular shape and has two states: a descending position and a rising position. When the limiting frame (51) is in the descending position, the side wall of the limiting frame (51) forms a blocking edge so that the parts conveyed to the visual inspection plate (2) are restricted on the visual inspection plate (2) in the limiting frame (51); when the limiting frame (51) is in the rising position, the limiting frame (51) is located above the visual inspection plate (2) and away from the visual inspection plate (2) so that the limiting frame (51) avoids the detection area between the visual inspection plate (2) and the visual inspection device (4).

Images