Universal optical screening machine

Abstract

The utility model discloses a universal optical screening machine which comprises a machine body, a feeding mechanism is arranged outside the machine body, a working table is arranged inside a machine shell, and a glass rotating disc, an adjusting mechanism, a positioning mechanism, a visual inspection mechanism and a sorting mechanism are arranged on the working table. The adjusting mechanism, the positioning mechanism, the visual detection mechanism and the sorting mechanism are sequentially arranged around the glass rotating disc, the visual detection mechanism comprises a first camera supporting frame, a second camera supporting frame and a third camera supporting frame, the first camera supporting frame is adjustably connected with a first detection camera, and the first detection camera is provided with a telecentric lens; the second camera supporting frame is adjustably connected with a second detection camera, the second detection camera is provided with an inner panoramic lens, the third camera supporting frame is adjustably connected with a third detection camera, and the third detection camera is provided with an outer panoramic lens.

Description

Technical Field

[0001] This utility model relates to the field of optical automated inspection technology, specifically a general-purpose optical sorting machine. Background Technology

[0002] In modern manufacturing, product quality control is of paramount importance, and the quality inspection of components is a key link in ensuring product quality. Traditional manual inspection methods have gradually revealed many undeniable drawbacks in long-term practice.

[0003] Manual inspection is extremely slow. Inspectors need to meticulously check each part with their naked eyes and simple tools. This process is not only time-consuming and labor-intensive, but also inefficient. In addition, manual inspection is prone to unstable results due to individual differences such as operator fatigue and emotions, making it difficult to guarantee accuracy. Furthermore, manual inspection is prone to wear and tear on parts when using inspection tools, causing scratches on the surface of the parts.

[0004] Optical sorting machines have improved inspection efficiency and accuracy to a certain extent. However, the camera lenses of existing optical sorting machines have limited inspection precision, making it difficult to detect minute cracks inside and outside parts. Due to camera imaging errors, the diameter of the detected parts may also be inaccurate. Therefore, it is necessary to design a general-purpose optical sorting machine that can perform comprehensive inspection and precise sorting. Utility Model Content

[0005] The purpose of this invention is to provide a universal optical sorting machine to solve the problems mentioned in the background art.

[0006] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a general-purpose optical sorting machine, including a machine body, a feeding mechanism on the outside of the machine body, a worktable inside the machine body, a glass turntable, an adjustment mechanism, a positioning mechanism, a vision inspection mechanism, and a sorting mechanism on the worktable, wherein the adjustment mechanism, the positioning mechanism, the vision inspection mechanism, and the sorting mechanism are arranged sequentially around the glass turntable, the vision inspection mechanism includes a first camera support frame, a second camera support frame, and a third camera support frame, the first camera support frame is tunably connected to a first inspection camera, the first inspection camera is equipped with a telecentric lens, the second camera support frame is tunably connected to a second inspection camera, the second inspection camera is equipped with an inner panoramic lens, and the third camera support frame is tunably connected to a third inspection camera, the third inspection camera is equipped with an outer panoramic lens.

[0007] According to the above technical solution, the feeding mechanism includes a cabinet, a vibrating plate is provided on the top of the cabinet, the vibrating plate is fixedly connected to a conveying channel, and a fixing plate is provided on one side of the conveying channel.

[0008] According to the above technical solution, the adjustment mechanism includes at least two adjustment support frames, and the adjustment support frames are provided with adjustable baffles.

[0009] According to the above technical solution, the positioning mechanism includes a positioning support frame, on which a photoelectric sensor is provided, and at one end of the positioning support frame is a ring light source, which is located on the opposite side of the first detection camera.

[0010] According to the above technical solution, the sorting mechanism includes a sorting support frame, and the sorting support frame is provided with a superior product placement slot, a inferior product placement slot and a product to be judged placement slot in sequence inside the sorting support frame. The top of the sorting support frame is provided with a plurality of air blowing solenoid valves, and the plurality of air blowing solenoid valves are provided in a one-to-one correspondence with the superior product placement slot, the inferior product placement slot and the product to be judged placement slot.

[0011] According to the above technical solution, a drive motor is provided at the bottom of the glass turntable, and a speed controller is provided on one side of the drive motor.

[0012] Compared with the prior art, the beneficial effects achieved by this utility model are:

[0013] (1) By setting a telecentric lens, not only is the parallax problem of traditional industrial lenses corrected, but the magnification of the image obtained will not change within a certain object distance range, thereby greatly improving the accuracy of the measurement size, enabling more accurate measurement and judgment of various dimensions of the workpiece, and avoiding quality misjudgment caused by measurement deviation.

[0014] (2) By setting up an inner panoramic lens and an outer panoramic lens, it is possible to perform all-round, no-dead-angle inspection of the inside and outside of the workpiece. The inner panoramic lens can go deep into the inside of the workpiece and clearly show the whole picture inside, making it easy to detect hidden defects inside. The outer panoramic lens can take a comprehensive picture of the appearance of the workpiece. Even for workpieces with complex structures, it can accurately identify the subtle defects hidden on the outside, thereby expanding the detection range and reducing the detection blind spot.

[0015] (3) By setting a speed controller, the rotation speed of the glass turntable 31 is not matched with the actual required rotation speed of the vision inspection mechanism 34 when facing workpieces of different types and sizes, which would cause the image acquired by the camera to be blurry and unclear, thus affecting the accuracy and reliability of the inspection. Attached Figure Description

[0016] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0017] Figure 1This is a schematic diagram of the external structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the internal structure of this utility model;

[0019] Figure 3 This is an enlarged schematic diagram of the internal structure of this utility model;

[0020] Figure 4 This is a rear view of the internal structure of this utility model;

[0021] In the diagram: 1. Machine body; 2. Feeding mechanism; 21. Cabinet; 22. Vibratory feeder; 23. Conveyor; 24. Fixing plate; 3. Workbench; 31. Glass turntable; 311. Drive motor; 312. Speed ​​controller; 32. Adjustment mechanism; 321. Adjustment support frame; 322. Adjustable baffle; 33. Positioning mechanism; 331. Positioning support frame; 332. Photoelectric sensor; 333. Ring light source; 34. Vision inspection mechanism; 341. First camera support frame; 342. Second camera support frame; 343. Third camera support frame; 344. First inspection camera; 345. Second inspection camera; 346. Third inspection camera; 35. Sorting mechanism; 351. Sorting support frame; 352. Superior product placement slot; 353. Inferior product placement slot; 354. Product to be judged placement slot; 355. Air blowing solenoid valve. Detailed Implementation

[0022] To enable those skilled in the art to better understand the present invention, the solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of the present invention.

[0023] Please see Figure 1-4This utility model provides a technical solution: a general-purpose optical sorting machine, including a machine body 1, a feeding mechanism 2 externally arranged on the machine body 1, and a worktable 3 internally arranged on the machine body 1. The worktable 3 is equipped with a glass turntable 31, an adjustment mechanism 32, a positioning mechanism 33, a vision inspection mechanism 34, and a sorting mechanism 35. The adjustment mechanism 32, the positioning mechanism 33, the vision inspection mechanism 34, and the sorting mechanism 35 are arranged sequentially around the glass turntable 31. The vision inspection mechanism 34 includes a first camera support frame 341, a second camera support frame 342, and a third camera support frame 343. The first camera support frame 341 is adjustablely connected to a first inspection camera 344, which is equipped with a telecentric lens. The second camera support frame 342 is adjustablely connected to a second inspection camera 345, which is equipped with an inner panoramic lens. The third camera support frame 343 is adjustablely connected to a third inspection camera 346, which is equipped with an outer panoramic lens.

[0024] Through this technical solution, the external feeding mechanism 2 of the machine body 1 can automatically feed workpieces, efficiently transporting them to the internal working area, thus improving the automation level and overall efficiency of the screening process. Inside the machine body 1, the worktable 3 serves as the mounting carrier for various key mechanisms. The glass turntable 31 provides a dynamic platform for the flow of workpieces, allowing them to pass sequentially through the surrounding mechanisms. The adjustment mechanism 32 not only makes preliminary adjustments to the position and posture of the workpieces but is also adjustable to adapt to different workpieces. The positioning mechanism 33 accurately determines the position of the workpiece, providing accurate positional information for inspection. The vision inspection mechanism 34 is equipped with multiple adjustable camera supports, allowing for flexible adjustment of camera positions, and each is equipped with a camera lens with different functions. The first inspection camera 344, equipped with a telecentric lens, can effectively correct parallax and ensure that the image magnification remains constant within a certain object distance range, thereby accurately measuring the workpiece size and providing accurate data for judging whether the workpiece meets the standards. The second inspection camera 345, equipped with an internal panoramic lens, can deeply inspect the interior of the workpiece, displaying the internal structure from all angles, making it easier to discover hidden defects. The third inspection camera 346 is equipped with an external panoramic lens, which can capture the appearance of the workpiece without blind spots and accurately identify minor external defects. The three cameras with different lenses work together to achieve all-round, multi-angle, and high-precision inspection of the workpiece, greatly improving the comprehensiveness and accuracy of the inspection. The vision inspection mechanism 34 uploads the inspection results to the control system. The system controls the sorting mechanism 35 to classify and place the workpieces according to the inspection results, completing the entire screening process. Through this ingenious layout and mechanism design, the entire system not only improves the versatility of the optical screening machine, enabling it to adapt to the screening needs of various types of workpieces and replacing manual labor, but also achieves high efficiency, automation, and precision in the screening process, greatly improving production efficiency and workpiece quality control capabilities.

[0025] Furthermore, the feeding mechanism 2 includes a cabinet 21, a vibratory feeder 22 is provided on the top of the cabinet 21, the vibratory feeder 22 is fixedly connected to a conveying channel 23, and a fixing plate 24 is provided on one side of the conveying channel 23.

[0026] Through this technical solution, the cabinet 21 provides a solid installation foundation for each component. The vibratory feeder 22 utilizes its own vibration characteristics to continuously and efficiently transport the workpiece to the conveyor 23, and then transport the workpiece to the glass turntable 31 through the conveyor 23. The application of the vibratory feeder 22 significantly improves the feeding speed, realizes continuous and uninterrupted feeding operations, and greatly shortens the time required for workpiece feeding.

[0027] Furthermore, the adjustment mechanism 32 includes at least two adjustment support frames 321, and adjustable baffles 322 are provided on the adjustment support frames 321;

[0028] Through this technical solution, the adjustable support frame 321 provides a stable support structure for the entire adjustment mechanism 32, and the adjustable baffle 322 enables the baffle to flexibly adjust its position and angle according to the actual needs of different types and specifications of workpieces. When facing workpieces of various shapes and sizes, the operator can adjust the baffle to precisely adjust the position and posture of the workpiece, ensuring that the workpiece enters the subsequent positioning and inspection process in a standard and appropriate state.

[0029] Furthermore, the positioning mechanism 33 includes a positioning support frame 331, on which a photoelectric sensor 332 is provided, and at one end of the positioning support frame 331 is a ring light source 333, which is located on the opposite side of the first detection camera 344.

[0030] Through this technical solution, the positioning support frame 331 serves as the basic frame of the positioning mechanism 33, supporting the photoelectric sensor 332 and the ring light source 333. The photoelectric sensor 332 can sensitively sense the passing workpiece and determine its position on the glass turntable 31. This positioning function provides key positional information for the subsequent visual inspection process, enabling the inspection camera to quickly capture the workpiece to be inspected and effectively avoiding inspection omissions. The ring light source 333 is located on the opposite side of the first inspection camera 344. When the first inspection camera 344 takes pictures, it provides uniform and stable lighting conditions for the workpiece, avoiding problems such as shadows and reflections caused by uneven lighting.

[0031] Furthermore, the sorting mechanism 35 includes a sorting support frame 351. Inside the sorting support frame 351, there are sequentially arranged superior product placement slots 352, inferior product placement slots 353 and product placement slots 354 to be judged. The top of the sorting support frame 351 is provided with a number of air blowing solenoid valves 355, which are arranged one-to-one with the superior product placement slots 352, inferior product placement slots 353 and product placement slots 354 to be judged.

[0032] Through this technical solution, the sorting support frame 351 provides a stable support structure for the entire sorting mechanism 35. The superior product placement slot 352, inferior product placement slot 353, and product to be judged placement slot 354 arranged sequentially inside clearly classify workpieces of different quality states, so that each type of workpiece has a corresponding storage position. After the vision inspection mechanism 34 completes the inspection of the workpiece and outputs the results, the control system can accurately control the corresponding air blowing solenoid valve 355 to work according to the inspection results. For example, for workpieces detected as superior products, the air blowing solenoid valve 355 corresponding to the superior product placement slot 352 is activated, blowing the workpiece into the slot. For workpieces detected as inferior products or products to be judged, the corresponding air blowing solenoid valve 355 will also act in time, thereby greatly reducing manual intervention and improving the accuracy of sorting.

[0033] Furthermore, a drive motor 311 is provided at the bottom of the glass turntable 31, and a speed controller 312 is provided on one side of the drive motor 311;

[0034] Through this technical solution, the speed controller 312 is connected to the control system. When the workpiece passes the positioning mechanism 33, the photoelectric sensor 332 sensitively senses the position of the workpiece and uploads the workpiece position information to the control system. The control system, in conjunction with the workpiece position, controls the speed of the drive motor 311 through the speed controller 312, thereby adjusting the speed of the glass turntable 31. This works in conjunction with the vision inspection mechanism 34 to obtain a clear image, avoiding the situation where the speed of the glass turntable 31 does not match the actual required speed of the vision inspection mechanism 34 when facing workpieces of different types and sizes. This would prevent the images obtained by the camera from becoming blurry and unclear, thus affecting the accuracy and reliability of the inspection.

[0035] Working principle: The vibratory plate 22 outside the machine body 1 sends the workpiece to the glass turntable 31 via the conveyor 23. The drive motor 311 drives the glass turntable 31 to rotate. The adjustable baffle 322 of the adjustment mechanism 32 adjusts the position and posture of the workpiece. The glass turntable 31 drives the workpiece to rotate. When the workpiece passes the positioning mechanism 33, the photoelectric sensor 332 is triggered. The system combines the workpiece position and controls the speed of the glass turntable 31 through the speed controller 312 to ensure that the glass turntable 31 rotates at a speed that meets the detection requirements. The system simultaneously activates the first detection camera 344, the second detection camera 345 and the third detection camera 346, and then takes pictures of the workpiece in sequence. The system combines the workpiece position comparison and interrupts the detection program. At the same time, it judges the detection result based on the image information provided by the vision inspection mechanism 34. Then, the corresponding air blowing solenoid valve 355 is activated to blow the workpiece into the corresponding superior, inferior or undetermined product placement slot 354.

[0036] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation or specific orientation structure and operation, and therefore should not be construed as a limitation of this utility model; the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. In addition, unless otherwise explicitly specified and limited, the terms "installed," "connected," and "linked" should be interpreted broadly, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0037] In the description of this utility model, the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this utility model. In this utility model, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. Moreover, those skilled in the art can combine different embodiments or examples and features of different embodiments or examples described in this utility model without contradiction.

[0038] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A universal optical screening machine comprising a machine body (1), characterized in that: The machine body (1) is externally provided with a feeding mechanism (2), and the machine body (1) is internally provided with a workbench (3), which is provided with a glass turntable (31), an adjusting mechanism (32), a positioning mechanism (33), a visual detection mechanism (34) and a sorting mechanism (35), wherein the adjusting mechanism (32), the positioning mechanism (33), the visual detection mechanism (34) and the sorting mechanism (35) are sequentially arranged around the glass turntable (31), the visual detection mechanism (34) comprises a first camera support frame (341), a second camera support frame (342) and a third camera support frame (343), the first detection camera (344) is adjustably connected to the first camera support frame (341), the first detection camera (344) is provided with a telecentric lens, the second detection camera (345) is adjustably connected to the second camera support frame (342), the second detection camera (345) is provided with an inner panoramic lens, and the third detection camera (346) is adjustably connected to the third camera support frame (343). The third detection camera (346) is provided with an outer panoramic lens.

2. A universal optical screening machine according to claim 1, characterized in that: The feeding mechanism (2) comprises a cabinet (21), and the top of the cabinet (21) is provided with a vibrating disc (22), the vibrating disc (22) is fixedly connected with a material conveying channel (23), and one side of the material conveying channel (23) is provided with a fixed plate (24).

3. A universal optical screening machine as claimed in claim 1, wherein: The adjusting mechanism (32) comprises at least two adjusting support frames (321), and the adjusting support frames (321) are provided with adjustable baffles (322).

4. A universal optical screening machine as claimed in claim 1, wherein: The positioning mechanism (33) comprises a positioning support frame (331), and the positioning support frame (331) is provided with a photoelectric sensor (332), one end of the positioning support frame (331) is provided with a ring-shaped light source (333), and the ring-shaped light source (333) is arranged on the opposite side of the first detection camera (344).

5. A universal optical screening machine as claimed in claim 1, wherein: The sorting mechanism (35) comprises a sorting support frame (351), and the sorting support frame (351) is internally provided with a good product placing groove (352), a poor product placing groove (353) and a product to be judged placing groove (354) in sequence, and the top of the sorting support frame (351) is provided with a plurality of air blowing electromagnetic valves (355), and the plurality of air blowing electromagnetic valves (355) are correspondingly arranged with the good product placing groove (352), the poor product placing groove (353) and the product to be judged placing groove (354).

6. A universal optical screening machine as claimed in claim 1, wherein: The bottom of the glass turntable (31) is provided with a driving motor (311), and one side of the driving motor (311) is provided with a speed controller (312).

Images