A screening machine based on 3D camera detection

Abstract

The utility model relates to an optical image screening machine, especially based on 3D camera detection's screening machine, it includes preposition detection platform, carousel and loading conveying belt, preposition detection platform includes 3D camera, support plate, loading push plate, receiving material box and discharge push plate, 3D camera is arranged above detection area, loading push plate moves and is set up before and after, discharge push plate moves and is set up left and right, discharge push plate and loading push plate divide the upper surface of support plate into detection area and non - detection area, and the feeding conveyor belt is set up respectively before and after the two sides of detection area with loading push plate, and the receiving material box is set up respectively left and right sides of detection area with discharge push plate, and the carousel is sequentially equipped with supplementary detection device and discharge device along the circumference, and the loading conveying belt links preposition detection platform and carousel, and the bolt is detected in advance in preposition detection platform, can accurately identify various defects, and the bolt that detects the qualified carries out supplementary detection to the carousel, avoids the missed detection, and the equipment occupies the small area.

Description

Technical Field

[0001] This utility model relates to an optical image screening machine, and more particularly to a screening machine based on 3D camera detection. Background Technology

[0002] Chinese utility patent CN220144073U discloses a bolt screening machine with secondary screening. It avoids normal bolts from being classified as defective products through secondary testing. However, the equipment has a large footprint and cannot be compatible with the testing of various common bolts. Utility Model Content

[0003] In view of the technical problems existing in the background art, the present invention aims to provide a screening machine based on 3D camera detection, which uses a 3D camera to detect bolts before feeding, and can be compatible with the detection of various ordinary bolts as well as the detection of the installation of sealing rings in the gaps of irregular bolts.

[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: This screening machine based on 3D camera detection includes a front detection platform, a turntable, and a feeding conveyor belt. The front detection platform includes a 3D camera, a tray, a feeding pusher, a receiving box, and a discharging pusher. The 3D camera is disposed above the detection area. The feeding pusher is arranged to move back and forth, and the discharging pusher is arranged to move left and right. The discharging pusher and the feeding pusher divide the upper surface of the tray into a detection area and a non-detection area. The feeding conveyor belt and the feeding pusher are respectively disposed on the front and rear sides of the detection area. The receiving box and the discharging pusher are respectively disposed on the left and right sides of the detection area. The turntable is provided with a supplementary detection device and a discharging device in sequence along the circumference. The feeding conveyor belt connects the front detection platform and the turntable.

[0005] In this solution, bolts are pre-inspected at the front inspection station, which can accurately identify various defects. Bolts that pass the inspection are then sent to the turntable for supplementary inspection to avoid missed inspections. The equipment has a small footprint.

[0006] Preferably, a guide plate is provided between the feeding conveyor belt and the turntable, and the guide plate is inclined relative to the conveying direction of the feeding conveyor belt.

[0007] In this scheme, the bolts on the conveyor belt are offset along the guide plate onto the turntable by the action of the feeding conveyor belt.

[0008] Preferably, the supplementary detection device includes a top-down camera mechanism and a side-mounted camera mechanism.

[0009] In this approach, supplementary testing is conducted using overhead and side-view shots.

[0010] Preferably, the discharge device includes a qualified product discharge mechanism and a non-qualified product discharge mechanism. The qualified product discharge mechanism includes a discharge nozzle and a qualified product conveyor belt, and the non-qualified product discharge mechanism includes a discharge guide plate and a non-qualified product conveyor belt.

[0011] In this scheme, the discharge nozzle blows the qualified products off the turntable and onto the qualified product conveyor belt, while the discharge guide plate guides the last unqualified products onto the unqualified product conveyor belt.

[0012] Preferably, the feeding pusher plate is connected to a feeding cylinder, the feeding cylinder is offset from the detection area in the left-right direction, and the 3D camera and the feeding conveyor belt are located on the same side of the detection area.

[0013] In this design, the feeding cylinder and the detection area are offset in the left-right direction, which will not prevent the operator or robot from placing the bolts into the detection area.

[0014] Preferably, an inclined feeding plate is connected between the pallet and the receiving box.

[0015] In this scheme, the receiving box is lower than the conveyor belt, and the volume of the box is not limited by the feeding conveyor belt.

[0016] Preferably, the discharge pusher plate is connected to a discharge cylinder, and the feeding pusher plate includes a driven section and a feeding section. The driven section is higher than the feeding section, and the driven section is connected to the feeding cylinder. The feeding cylinder and the discharge cylinder are located on the same side of the detection area.

[0017] In this scheme, the feeding cylinder and the discharging cylinder are arranged in a centralized manner, reducing the equipment footprint. The driven section is higher than the feeding section, so the feeding push plate will not interfere with the discharging push plate and the discharging cylinder when it moves.

[0018] Preferably, the 3D camera is mounted on a mounting plate. The 3D camera includes a main body with a fixing hole and an angle adjustment hole. The mounting plate has mounting holes corresponding to the fixing holes and arc-shaped holes corresponding to the angle adjustment holes. The arc-shaped holes extend in the front-back direction and vertically.

[0019] In this solution, the angle of the 3D camera is adjustable.

[0020] Preferably, the lifting adjustment of the mounting plate is set on the support plate, and the forward and backward movement adjustment of the support plate is set on the mounting frame.

[0021] In this design, the height and horizontal position of the 3D camera are adjustable to accommodate bolts of different sizes.

[0022] Preferably, it also includes a grating, which is located on the same side of the detection area as the feeding pusher plate. The grating is signal-connected to the controller, and the controller is control-connected to the feeding cylinder and the discharging cylinder.

[0023] In this solution, the grating sensor detects the operator, preventing injury caused by equipment malfunction during manual material loading.

[0024] The beneficial effects of this invention are that bolts are pre-inspected on a front-end inspection platform, which can accurately identify various defects. Bolts that pass the inspection are then subjected to supplementary inspection at the turntable, avoiding missed inspections. The equipment also has a small footprint. Therefore, this invention has substantial features and progress compared with the prior art. Attached Figure Description

[0025] The following description, in conjunction with the accompanying drawings, details the embodiments and working principles of this utility model.

[0026] Figure 1 This is a schematic diagram of the structure of this utility model.

[0027] Figure 2 This is a three-dimensional structural diagram of the turntable in this utility model.

[0028] Figure 3 This is a three-dimensional structural diagram of the front detection platform in this utility model.

[0029] Figure 4 This is a three-dimensional structural diagram of the front detection platform in this utility model from another angle.

[0030] In the diagram: 1. Front inspection platform; 2. 3D camera; 3. Pallet; 4. Feeding pusher; 5. Receiving box; 6. Discharge pusher; 7. Inspection area; 8. Non-inspection area; 9. Turntable; 10. Supplementary inspection device; 11. Discharge device; 12. Feeding conveyor belt; 13. Guide plate; 14. Top-down shooting mechanism; 15. Side shooting mechanism; 16. Qualified product discharge mechanism; 17. Unqualified product discharge mechanism; 18. Discharge nozzle; 19. Qualified product conveyor belt; 20. Discharge guide plate; 21. Unqualified product conveyor belt; 22. Unloading plate; 23. Discharge cylinder; 24. Driven section; 25. Feeding section; 26. Mounting plate; 27. Main body; 28. Fixing hole; 29. ​​Angle adjustment hole; 30. Mounting hole; 31. Arc hole; 32. Support plate; 33. Mounting frame; 34. Grating; 35. Feeding cylinder. Detailed Implementation

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the implementation of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0032] In the description of this application, it should be understood that the terms "upper" and "lower" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0033] In the description of this application, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated.

[0034] See appendix Figure 1-3 This embodiment of the present invention provides a screening machine based on 3D camera detection, comprising a front detection platform 1, a turntable 9, and a feeding conveyor belt 12. The front detection platform 1 includes a 3D camera 2, a pallet 3, a feeding pusher 4, a receiving box 5, and a discharging pusher 6. The 3D camera 2 is positioned above the detection area 7. The feeding pusher 4 is movable back and forth, and the discharging pusher 6 is movable left and right. The discharging pusher 6 and the feeding pusher 4 divide the upper surface of the pallet 3 into a detection area 7 and a non-detection area 8. The feeding conveyor belt 12 and the feeding pusher 4 are respectively positioned on the front and rear sides of the detection area 7. The receiving box 5 and the discharging pusher 6 are respectively positioned on the front and rear sides of the detection area 7. On the left and right sides of the detection area 7, the turntable 9 is provided with a supplementary detection device 10 and a discharge device 11 in sequence along the circumference. The feeding conveyor belt 12 connects the front detection platform 1 and the turntable 9. A guide plate 13 is provided between the feeding conveyor belt 12 and the turntable 9. The guide plate 13 is inclined relative to the conveying direction of the feeding conveyor belt 12. The supplementary detection device 10 includes a top-down shooting mechanism 14 and a side-shooting mechanism 15. The discharge device 11 includes a qualified product discharge mechanism 16 and a non-qualified product discharge mechanism 17. The qualified product discharge mechanism 16 includes a discharge air nozzle 18 and a qualified product conveyor belt 19. The non-qualified product discharge mechanism 17 includes a discharge guide plate 20 and a non-qualified product conveyor belt 21.

[0035] In this embodiment, the bolts are placed on the inspection area 7 of the pallet 3 by the operator or robot. The 3D camera 2 inspects the bolts. Based on the inspection results, the discharge cylinder 23 and the loading cylinder 35 selectively operate. The discharge cylinder 23 pushes the defective products into the receiving box 5, and the loading cylinder 35 pushes the qualified products onto the loading conveyor belt 12. The guide plate 13 guides the bolts on the loading conveyor belt 12 to the turntable 9. The turntable 9 drives the bolts to rotate. After undergoing supplementary inspection by overhead and side shots, the qualified products are blown to the qualified product conveyor belt 19 by the discharge nozzle 18, and the defective products are guided to the defective conveyor belt 21 by the discharge guide plate 20.

[0036] The turntable 9 is also equipped with baffles and photosensitive sensors around its circumference. The baffles push the bolts away from the edge of the turntable 9 during its rotation, and the photosensitive sensors detect the position of the bolts to control the camera's movement. The overhead shooting mechanism 14 and the side shooting mechanism 15 both include cameras and light sources arranged opposite to each other. The defective product discharge mechanism 16 also includes another set of defective conveyor belts 21. Based on the overhead and side shooting detection results, the defective products are divided into two categories. The corresponding defective products are discharged into the defective conveyor belt 21 by air nozzles. The discharge guide plate 20 is also equipped with air nozzles to assist in the discharge. The air nozzles can be moved and adjusted radially along the turntable 9. The end of the corresponding conveyor belt is a receiving plate.

[0037] See appendix Figure 3-4 The feeding pusher plate 4 is connected to a feeding cylinder 35, which is offset from the detection area 7 in the left-right direction. The 3D camera 2 and the feeding conveyor belt 12 are located on the same side of the detection area 7. An inclined unloading plate 22 connects the pallet 3 and the receiving box 5. The discharge pusher plate 6 is connected to a discharge cylinder 23. The feeding pusher plate 4 includes a driven section 24 and a feeding section 25, with the driven section 24 being higher than the feeding section 25. The driven section 24 is connected to the feeding cylinder 35, which is located on the same side of the detection area 7 as the discharge cylinder 23. The 3D camera 2 is mounted on the mounting plate 26. The 3D camera 2 includes a main body 27, which has a fixing hole 28 and an angle adjustment hole 29. The mounting plate 26 has a mounting hole 30 corresponding to the fixing hole 28 and an arc-shaped hole 31 corresponding to the angle adjustment hole 29. The arc-shaped hole 31 extends in the front-back direction and vertically. The mounting plate 26 is adjustable in height on a support plate 32. The support plate 32 is adjustable in front-back movement on a mounting frame 33. The camera also includes a grating 34, which is located on the same side of the detection area 7 as the feeding push plate 4. The grating 34 is connected to the controller via a signal. The controller is connected to the feeding cylinder 35 and the discharging cylinder 23 via a control connection.

[0038] In this embodiment, the feeding action of the feeding pusher plate 4 is defined as from front to back. The operator approaches from the front of the detection area 7 and inserts the bolt. After the grating 34 senses that the operator is away, it sends a signal to the controller. The controller controls the 3D camera 2 to perform detection based on the signal. Based on the detection result, the controller controls the feeding pusher plate 4 and the discharging pusher plate 6 to selectively move. During adjustment, the fasteners are loosened and the correspondence between the arc hole 31 and the angle adjustment hole 29 is adjusted. The same applies to the lifting adjustment of the mounting plate 26 and the forward and backward movement adjustment of the support plate 32, which are sliding positioning connections.

[0039] The above description represents the preferred embodiment of this utility model. It should be noted that the scope of protection of this utility model is not limited thereto. For those skilled in the art, various improvements, modifications, or equivalent substitutions can be made without departing from the equivalent inventive concept disclosed in this utility model, and these can also be considered as part of the scope of protection of this utility model.

Claims

1. A screening machine based on 3D camera detection, characterized in that: include The front inspection station (1) includes a 3D camera (2), a tray (3), a feeding pusher (4), a receiving box (5), and a discharge pusher (6). The feeding pusher (4) is arranged to move back and forth, and the discharge pusher (6) is arranged to move left and right. The discharge pusher (6) and the feeding pusher (4) divide the upper surface of the tray (3) into an inspection area (7) and a non-inspection area (7). The 3D camera (2) is arranged above the inspection area (7). The feeding conveyor belt (12) and the feeding pusher (4) are respectively arranged on the front and rear sides of the inspection area (7). The receiving box (5) and the discharge pusher (6) are respectively arranged on the left and right sides of the inspection area (7). The turntable (9) is provided with a supplementary detection device (10) and a discharge device (11) in sequence along its circumference. The feeding conveyor belt (12) connects the front inspection station (1) and the turntable (9).

2. The screening machine based on 3D camera detection as described in claim 1, characterized in that: A guide plate (13) is provided between the feeding conveyor belt (12) and the turntable (9), and the guide plate (13) is inclined relative to the conveying direction of the feeding conveyor belt (12).

3. A screening machine based on 3D camera detection as described in claim 1, characterized in that: The supplementary detection device (10) includes a top-down camera mechanism (14) and a side-mounted camera mechanism (15).

4. A screening machine based on 3D camera detection as described in claim 1, characterized in that: The discharge device (11) includes a qualified product discharge mechanism (16) and an unqualified product discharge mechanism (17). The qualified product discharge mechanism (16) includes a discharge nozzle (18) and a qualified product conveyor belt (19). The unqualified product discharge mechanism (17) includes a discharge guide plate (20) and an unqualified product conveyor belt (21).

5. A screening machine based on 3D camera detection as described in claim 1, characterized in that: The feeding push plate (4) is connected to a feeding cylinder (35). The feeding cylinder (35) and the detection area (7) are offset in the left and right directions. The 3D camera (2) and the feeding conveyor belt (12) are located on the same side of the detection area (7).

6. A screening machine based on 3D camera detection as described in claim 1, characterized in that: An inclined unloading plate (22) connects the pallet (3) and the receiving box (5).

7. A screening machine based on 3D camera detection as described in claim 5, characterized in that: The discharge push plate (6) is connected to the discharge cylinder (23). The feeding push plate (4) includes a driven section (24) and a feeding section (25). The driven section (24) is higher than the feeding section (25). The driven section (24) is connected to the feeding cylinder (35). The feeding cylinder (35) and the discharge cylinder (23) are located on the same side of the detection area (7).

8. A screening machine based on 3D camera detection as described in claim 1, characterized in that: The 3D camera (2) is mounted on the mounting plate (26). The 3D camera (2) includes a main body (27). The main body (27) is provided with a fixing hole (28) and an angle adjustment hole (29). The mounting plate (26) is provided with a mounting hole (30) corresponding to the fixing hole (28) and an arc-shaped hole (31) corresponding to the angle adjustment hole (29). The arc-shaped hole (31) extends along the front-back direction and vertically.

9. A screening machine based on 3D camera detection as described in claim 8, characterized in that: The lifting adjustment of the mounting plate (26) is set on the support plate (32), and the forward and backward movement adjustment of the support plate (32) is set on the mounting frame (33).

10. A screening machine based on 3D camera detection as described in claim 7, characterized in that: It also includes a grating (34), which is located on the same side of the detection area (7) as the feeding pusher plate (4). The grating (34) is connected to the controller signal, and the controller is connected to the feeding cylinder (35) and the discharging cylinder (23) for control.

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