Glass cover plate defect online detecting and sorting device based on visual identification

Abstract

The utility model relates to the technical field of glass cover plate production detection, and discloses a glass cover plate defect online detection sorting device based on visual identification, which comprises a bracket, a conveyor belt arranged on the bracket, a visual detection mechanism and an adjusting mechanism which are positioned above the conveyor belt, and a sorting clamping mechanism arranged on the adjusting mechanism, the conveyor belt is driven by the driving motor and controlled to convey. Through cooperation of the rotating motor, the horizontal guide rail frame and the lifting air cylinder, three-dimensional position adjustment of the visual inspection mechanism is achieved, the detection requirements of glass cover plates of different sizes and specifications can be flexibly met, and the detection range and precision are remarkably improved; the sorting clamping mechanism adopts a dual-driving structure of working cylinder driving and electric push rod clamping jaw opening and closing, and is matched with four groups of symmetrical clamping jaws with rubber layers, so that the edges or four corners of the glass cover plate can be stably clamped, the glass cover plate is prevented from slipping or being damaged in the sorting process, and the sorting accuracy is improved.

Description

Technical Field

[0001] This utility model relates to the field of glass cover production and inspection, and in particular to an online detection and sorting device for glass cover defects based on visual recognition. Background Technology

[0002] In the production process of glass covers, defect detection and sorting are crucial steps. As an important component of electronic devices (such as mobile phones and tablets), the surface quality of glass covers directly affects the appearance and performance of the products.

[0003] With the development of automation technology, some vision-based inspection equipment has been gradually applied to the defect detection of glass covers. However, existing inspection and sorting devices have certain limitations. The structural design of the sorting clamping mechanism is not reasonable enough, and it is prone to instability when clamping glass covers, affecting sorting efficiency and accuracy. Moreover, the sorting action lacks flexibility for glass covers with different defect types. Therefore, there is an urgent need to design a vision-based online inspection and sorting device for glass covers that can overcome the above-mentioned shortcomings. Utility Model Content

[0004] To address the technical problem of unstable clamping, this invention provides an online defect detection and sorting device for glass covers based on visual recognition.

[0005] The present invention is achieved by the following technical solution: an online detection and sorting device for glass cover defects based on visual recognition, comprising a support, a conveyor belt set on the support, a visual detection mechanism located above the conveyor belt and an adjustment mechanism, and a sorting clamping mechanism set on the adjustment mechanism;

[0006] The conveyor belt is driven by a drive motor, which controls the conveyor belt's transport.

[0007] The bottom of the column is installed on the edge of the conveyor belt frame, and the top of the column is fitted with a fixing clip. A connecting rod runs through the inside of the fixing clip, and the other end of the connecting rod is movably connected to the adjustment plate. The visual defect detection head is fixed to the adjustment plate by bolts.

[0008] The visual inspection mechanism is vertically fixed to the edge of the conveyor belt frame by a column. The top fixing clip is connected to the column and holds one end of the connecting rod. The other end is movably connected to the adjustment plate. The adjustment plate can rotate around the connecting rod, so that the visual defect detection head can be adjusted laterally to align with the center area of ​​the glass cover.

[0009] The control system analyzes the acquired images using preset visual algorithms such as image recognition and defect feature matching to determine whether the glass cover has defects such as cracks, scratches, bubbles, and edge defects, and locates the location and type of defects.

[0010] The adjustment mechanism includes a vertical frame, the bottom of which is fixed to the edge of the conveyor belt frame. A rotary motor is installed at the top of the vertical frame, and the output shaft of the rotary motor is connected to a horizontal guide rail frame. A crossbeam is installed on the horizontal guide rail frame, and a connecting block is set on the crossbeam. A lifting cylinder is connected to the bottom of the connecting block, and a receiving rod is connected to the lower end of the piston rod of the lifting cylinder. The receiving rod is connected to the sorting and clamping mechanism.

[0011] The vertical frame is fixed to the edge of the conveyor belt frame, and the output shaft of the rotating motor at the top is horizontally connected to the horizontal guide rail frame, which can drive the horizontal guide rail frame to rotate ±90° around the output shaft. When inspecting glass covers of different thicknesses or sizes, the lifting cylinder adjusts the height of the receiving rod to keep the gripper at a clamping distance from the surface of the glass cover, so that the gripper can clamp the glass cover.

[0012] The sorting and clamping mechanism includes a working cylinder, the cylinder body of which is fixed on a receiving rod. A mounting plate supports the bottom end of the working cylinder. A guide block is connected to the output end of the working cylinder. An electric push rod is installed on the outside of the guide block. A gripper is connected to the output end of the electric push rod.

[0013] As a further improvement to the above solution, the working cylinder body is fixed to the receiving rod, and the output end extends downward to drive the guide block to rotate around the mounting plate. Adjusting the angle of the guide block makes it easier for the gripper to clamp the glass cover at different angles.

[0014] As a further improvement to the above solution, the electric push rod is installed on the outside of the guide block. The four sets of grippers at its output end are symmetrically distributed and closed by the electric push rod. The rubber pads on the clamping surface are used to clamp the four corners or edges of the glass cover plate to avoid slippage or damage during clamping.

[0015] As a further improvement to the above solution, the electric push rod is installed on the outside of the guide block. The four sets of grippers at its output end are symmetrically distributed and closed by the electric push rod. The rubber pads on the clamping surface are used to clamp the four corners or edges of the glass cover plate to avoid slippage or damage during clamping.

[0016] As a further improvement to the above scheme, four sets of grippers are provided, and the gripping surfaces of the grippers are provided with a rubber layer, which are symmetrically distributed around the output end of the electric push rod.

[0017] As a further improvement to the above solution, the conveyor belt is driven by an unlabeled motor (this is existing technology and will not be described in detail here), which transports the glass cover plate at a constant speed, moving it along the conveyor path on the support. The glass cover plate moves with the conveyor belt to the middle of the device and enters the inspection area of ​​the visual inspection mechanism, providing a stable transport medium for subsequent defect detection.

[0018] As a further improvement to the above solution, when the glass cover moves directly under the visual defect detection head, the detection head uses a camera or sensor to capture images of the glass cover surface, obtain visual information such as its surface texture and edge contour, and transmit the data to the control system in real time.

[0019] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0020] 1. This utility model achieves three-dimensional position adjustment of the vision inspection mechanism through the cooperation of a rotating motor, a horizontal guide rail frame and a lifting cylinder, which can flexibly adapt to the inspection needs of glass cover plates of different sizes and specifications, and significantly improve the inspection range and accuracy.

[0021] 2. This utility model adopts a dual drive structure of "working cylinder drive + electric push rod gripper opening and closing" for the sorting and clamping mechanism, and is equipped with four sets of symmetrical grippers with rubber layers, which can stably clamp the edge or four corners of the glass cover plate, avoid slipping or breaking during the sorting process, and improve sorting accuracy.

[0022] 3. This utility model integrates visual recognition and motion control through a control system to achieve fully automated and coordinated processes of conveyor belt conveying, visual inspection, position adjustment, and sorting clamping, reducing manual intervention and significantly improving inspection and sorting efficiency. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0024] Figure 2 This is a schematic diagram of the connection structure of the visual inspection mechanism of this utility model;

[0025] Figure 3 This utility model Figure 1 Schematic diagram of the middle section of the structure;

[0026] Figure 4 This is a schematic diagram of the connection structure of the sorting and clamping mechanism of this utility model.

[0027] Explanation of key symbols:

[0028] 1. Support frame; 2. Conveyor belt; 3. Visual inspection mechanism; 31. Column; 32. Fixing clamp; 33. Connecting rod; 34. Adjusting plate; 35. Visual defect detection head; 4. Adjustment mechanism; 41. Vertical frame; 42. Rotary motor; 43. Horizontal guide rail frame; 44. Crossbeam; 45. Connecting block; 46. Lifting cylinder; 47. Supporting rod; 5. Sorting and clamping mechanism; 51. Working cylinder; 52. Mounting plate; 53. Guide block; 54. Electric push rod; 55. Gripper. Detailed Implementation

[0029] The present invention will now be further described in conjunction with the accompanying drawings and specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments. Example 1:

[0030] Please combine Figures 1-4 This embodiment proposes an online detection and sorting device for glass cover defects based on visual recognition, including a support 1, a conveyor belt 2 set on the support 1, a visual detection mechanism 3 located above the conveyor belt 2, an adjustment mechanism 4, and a sorting clamping mechanism 5 set on the adjustment mechanism 4.

[0031] Furthermore, the conveyor belt 2 is driven by a drive motor, which controls the conveying of the conveyor belt 2.

[0032] A further technical solution involves conveyor belt 2 being driven by an unlabeled motor (a standard technology that will not be elaborated upon here), which transports the glass cover plate at a constant speed, moving it along the transport path on support 1. The glass cover plate moves with conveyor belt 2 to the center of the device, entering the inspection area of ​​the visual inspection mechanism 3, providing a stable transport medium for subsequent defect detection.

[0033] The bottom end of the column 31 is installed on the frame edge of the conveyor belt 2, and the top end of the column 31 is fitted with a fixing clip 32. A connecting rod 33 runs through the inside of the fixing clip 32. The other end of the connecting rod 33 is movably connected to the adjusting plate 34. The visual defect detection head 35 is fixed to the adjusting plate 34 by bolts.

[0034] In the specific technical solution, the visual inspection mechanism 3 is vertically fixed to the edge of the conveyor belt 2 frame by the column 31. The top fixing clip 32 is sleeved on the column 31 and clamps one end of the connecting rod 33. The other end is movably connected to the adjustment plate 34. The adjustment plate 34 can rotate around the connecting rod 33, so that the visual defect detection head 35 can be adjusted laterally to align with the center area of ​​the glass cover.

[0035] When the glass cover moves directly below the visual defect detection head 35, the detection head acquires images of the glass cover surface through a camera or sensor, obtains visual information such as its surface texture and edge contour, and transmits the data to the control system in real time.

[0036] The control system analyzes the acquired images using preset visual algorithms such as image recognition and defect feature matching to determine whether the glass cover has defects such as cracks, scratches, bubbles, and edge defects, and locates the location and type of defects.

[0037] The adjustment mechanism 4 includes a vertical frame 41, the bottom end of which is fixed to the frame edge of the conveyor belt 2. A rotary motor 42 is installed at the top of the vertical frame 41. The output shaft of the rotary motor 42 is connected to a horizontal guide rail frame 43. A crossbeam 44 is installed on the horizontal guide rail frame 43. A connecting block 45 is provided on the crossbeam 44. A lifting cylinder 46 is connected to the bottom end of the connecting block 45. A receiving rod 47 is connected to the lower end of the piston rod of the lifting cylinder 46. The receiving rod 47 is connected to the sorting and clamping mechanism 5.

[0038] In the specific technical solution, the vertical frame 41 is fixed to the edge of the conveyor belt 2 frame, and the output shaft of the top rotating motor 42 is horizontally connected to the horizontal guide rail frame 43, which can drive the horizontal guide rail frame 43 to rotate ±90° around the output shaft; when detecting glass covers of different thicknesses or sizes, the lifting cylinder 46 adjusts the height of the receiving rod 47 so that the gripper 55 maintains a clamping distance with the surface of the glass cover, making it convenient for the gripper 55 to clamp the glass cover;

[0039] The sorting and clamping mechanism 5 includes a working cylinder 51, the cylinder body of which is fixed on the receiving rod 47. The bottom end of the working cylinder 51 is supported by a mounting plate 52. The output end of the working cylinder 51 is connected to a guide block 53. An electric push rod 54 is installed on the outside of the guide block 53. The output end of the electric push rod 54 is connected to a gripper 55.

[0040] Furthermore, the grippers 55 are provided in four sets, and the gripping surfaces of the grippers 55 are provided with a rubber layer, which are symmetrically distributed around the output end of the electric push rod 54.

[0041] A further specific technical solution involves the control system sending an action command to the sorting and clamping mechanism 5 when it determines that the glass cover has a defect:

[0042] The working cylinder 51 is fixed to the receiving rod 47, and the output end extends downward to drive the guide block 53 to rotate around the mounting plate 52. Adjusting the angle of the guide block 53 makes it easier for the gripper 55 to clamp the glass cover at different angles.

[0043] The electric push rod 54 is installed on the outside of the guide block 53. The four sets of grippers 55 at its output end are symmetrically distributed and close by the electric push rod 54. The rubber pads on the clamping surface are used to clamp the four corners or edges of the glass cover plate to prevent slippage or damage during clamping.

[0044] After clamping, the piston rod of the working cylinder 51 retracts, lifting the glass cover from the conveyor belt 2 to a safe height. The rotating motor 42 drives the horizontal guide rail frame 43 to rotate, transferring the defective glass cover to the designated sorting area.

[0045] The visual recognition-based online detection and sorting device for glass cover defects provided by this utility model achieves automated detection and sorting of glass cover defects through the coordinated operation of conveyor belt conveying, visual inspection, position adjustment, defect recognition, and sorting clamping. The specific working principle is as follows:

[0046] Conveyor belt 2, driven by an unmarked motor (which is existing technology and will not be described in detail), transports the glass cover plate at a constant speed, moving it along the transport path on support 1. The glass cover plate moves with conveyor belt 2 to the center of the device, entering the inspection area of ​​visual inspection mechanism 3, providing a stable transport medium for subsequent defect detection.

[0047] Image acquisition and defect identification by visual inspection agencies

[0048] The visual inspection mechanism 3 is vertically fixed to the edge of the conveyor belt 2 frame by the column 31. The top fixing clip 32 is sleeved on the column 31 and clamps one end of the connecting rod 33. The other end is movably connected to the adjustment plate 34. The adjustment plate 34 can rotate around the connecting rod 33, so that the visual defect detection head 35 can be adjusted laterally to align with the center area of ​​the glass cover.

[0049] When the glass cover moves directly below the visual defect detection head 35, the detection head acquires images of the glass cover surface through a camera or sensor, obtains visual information such as its surface texture and edge contour, and transmits the data to the control system in real time.

[0050] The control system analyzes the acquired images using preset visual algorithms such as image recognition and defect feature matching to determine whether the glass cover has defects such as cracks, scratches, bubbles, and edge defects, and locates the location and type of defects.

[0051] Multi-dimensional position adjustment of the regulating mechanism:

[0052] The vertical frame 41 is fixed to the edge of the conveyor belt 2 frame. The output shaft of the rotating motor 42 at the top is horizontally connected to the horizontal guide rail frame 43, which can drive the horizontal guide rail frame 43 to rotate ±90° around the output shaft. When inspecting glass covers of different thicknesses or sizes, the lifting cylinder 46 adjusts the height of the receiving rod 47 so that the gripper 55 maintains a clamping distance from the surface of the glass cover, making it convenient for the gripper 55 to clamp the glass cover.

[0053] When the control system determines that the glass cover is defective, it sends an action command to the sorting and clamping mechanism 5:

[0054] The working cylinder 51 is fixed to the receiving rod 47, and the output end extends downward to drive the guide block 53 to rotate around the mounting plate 52. Adjusting the angle of the guide block 53 makes it easier for the gripper 55 to clamp the glass cover at different angles.

[0055] The electric push rod 54 is installed on the outside of the guide block 53. The four sets of grippers 55 at its output end are symmetrically distributed and close by the electric push rod 54. The rubber pads on the clamping surface are used to clamp the four corners or edges of the glass cover plate to prevent slippage or damage during clamping.

[0056] After clamping, the piston rod of the working cylinder 51 retracts, lifting the glass cover from the conveyor belt 2 to a safe height. The rotating motor 42 drives the horizontal guide rail frame 43 to rotate, transferring the defective glass cover to the designated sorting area.

[0057] The above embodiments are merely preferred embodiments of this utility model and should not be construed as limiting the scope of protection of this utility model. Any non-substantial changes and substitutions made by those skilled in the art based on this utility model shall fall within the scope of protection claimed by this utility model.

Claims

1. A visual recognition-based online detection and sorting device for glass cover plate defects, characterized in that, It includes a support (1), a conveyor belt (2) disposed on the support (1), a vision inspection mechanism (3) located above the conveyor belt (2) and an adjustment mechanism (4), and a sorting clamping mechanism (5) disposed on the adjustment mechanism (4); The sorting and clamping mechanism (5) includes a working cylinder (51), the cylinder body of which is fixed on the receiving rod (47), the bottom end of which is supported by a mounting plate (52), the output end of which is connected to a guide block (53), an electric push rod (54) is installed on the outside of the guide block (53), and the output end of the electric push rod (54) is connected to a gripper (55). 2.The visual recognition based glass cover plate defect online detection and sorting device according to claim 1, wherein The bottom end of the column (31) is installed on the frame edge of the conveyor belt (2), and the top end of the column (31) is fitted with a fixing clip (32). A connecting rod (33) runs through the inside of the fixing clip (32). The other end of the connecting rod (33) is movably connected to the adjusting plate (34). The visual defect detection head (35) is fixed on the adjusting plate (34) by bolts.

3. The online detection and sorting device for glass cover defects based on vision recognition as described in claim 1, characterized in that, The adjustment mechanism (4) includes a vertical frame (41), the bottom end of which is fixed on the frame edge of the conveyor belt (2). A rotating motor (42) is installed at the top of the vertical frame (41). The output shaft of the rotating motor (42) is connected to a horizontal guide rail frame (43). A crossbeam (44) is installed on the horizontal guide rail frame (43). A connecting block (45) is provided on the crossbeam (44). A lifting cylinder (46) is connected to the bottom end of the connecting block (45). A receiving rod (47) is connected to the lower end of the piston rod of the lifting cylinder (46). The receiving rod (47) is connected to the sorting clamping mechanism (5).

4. The online visual recognition based glass cover plate defect detection and sorting device according to claim 1, wherein, The gripper (55) is provided in four sets, and the gripping surface of the gripper (55) is provided with a rubber layer, which are symmetrically distributed around the output end of the electric push rod (54).

5. The online visual recognition based glass cover plate defect detection and sorting device according to claim 1, wherein, The conveyor belt (2) is driven by a drive motor, which controls the conveyor belt (2) to transport materials.

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