A detection and correction device based on machine vision

Abstract

The present invention provides a detection and correction device based on machine vision, comprising a box, a vision module and a control mechanism, and a conveying and clamping mechanism arranged on the top of the box for transporting products. The vision module is used to realize angle position detection and tracking detection of the product on the conveying and clamping mechanism, and the operation instruction information is edited by a computer, and an instruction is sent by a central processing unit to let the vision module take a picture. After the vision module takes the picture, the angle change of the currently detected product and the digital code on the product are obtained. The vision module transmits the information to the central processing unit again through the switch, and the central processing unit controls the adjustment mechanism to perform multi-angle adjustment and correction. After the adjustment and correction, the information is transmitted to the storage for storage, which is convenient for directly photographing and inspecting the product next time, effectively calibrating the vision module, and improving the work efficiency of shooting and detection.

Description

Technical Field

[0001] The present invention relates to the technical field of machine vision, and in particular to a detection and correction device based on machine vision. Background Art

[0002] Machine vision is a rapidly developing branch of artificial intelligence. Simply put, machine vision is the use of machines to replace human eyes for measurement and judgment. The machine vision system uses machine vision products, namely image capture devices, which are divided into CMOS and CCD. It converts the captured target into image signals and transmits them to a dedicated image processing system to obtain the morphological information of the captured target. According to the pixel distribution, brightness, color and other information, it converts it into digital signals. The image system performs various operations on these signals to extract the characteristics of the target, and then controls the operation of the equipment on site based on the judgment results.

[0003] Machine vision is to install a camera on the equipment, obtain the features of the object by taking pictures and store them in the computer. After the computer processes the feature data, it matches it according to the geometric shape and size information of the target object stored in the computer. After detecting the product, the specific coordinate position of the target object in the coordinate system is calculated based on the proportional relationship between pixels and coordinates. After the machine vision and machinery are installed, it is necessary to obtain high-precision positioning information according to the appearance of the product for adjustment and correction. However, most of the existing machine vision is fixed on the bracket. When used for a long time, it is easy to shake, causing the machine vision to tilt, thereby reducing the efficiency of shooting detection. For this reason, a detection and correction device based on machine vision is proposed. Summary of the Invention

[0004] In view of this, an embodiment of the present invention hopes to provide a detection and correction device based on machine vision to solve or alleviate the technical problems existing in the prior art and at least provide a beneficial option.

[0005] The technical solution of an embodiment of the present invention is implemented as follows: a detection and correction device based on machine vision, including a box, a visual module and a control mechanism, as well as a conveying and clamping mechanism arranged on the top of the box for transporting products and an adjustment mechanism arranged on the top of the conveying and clamping mechanism for correcting and adjusting the visual module, the control mechanism includes a computer, a switch, a central processing unit and a storage, the storage is electrically connected to the visual module, and the visual module, central processing unit and computer are respectively electrically connected to the switch.

[0006] Preferably: the conveying clamping mechanism includes a U-shaped plate fixedly mounted on the top of the box body, a conveyor belt is fixedly mounted on both sides of the inner wall of the U-shaped plate through an axis rod, a first motor is fixedly mounted on one side of the U-shaped plate, the output end of the first motor passes through the U-shaped plate and is fixedly connected to the conveyor belt, and the first motor is electrically connected to the central processing unit.

[0007] Preferably, the conveying and clamping mechanism further comprises a first electric telescopic rod fixedly mounted on both sides of the inner wall of the U-shaped plate, a clamping plate being fixedly mounted on the output end of the first electric telescopic rod, and the first electric telescopic rod is electrically connected to the central processing unit.

[0008] Preferably: a plurality of dampers are fixedly installed in sequence from left to right on the side of the clamping plate away from the first electric telescopic rod, a shell is fixedly installed on the output end of the damper, a transmission belt is fixedly installed inside the shell through an axis rod, and a spring is sleeved on the outer wall of the damper, one end of the spring is fixedly connected to one side of the shell, and the end of the spring away from the shell is fixedly connected to one side of the clamping plate.

[0009] Preferably: the adjustment mechanism includes a slide plate fixedly installed on both sides of the top of the U-shaped plate, a second electric telescopic rod is fixedly installed on the bottom of the inner wall of the slide plate, the second electric telescopic rod is electrically connected to the central processor, and a slide plate is connected to the inside of the slide plate in a sliding manner, and the bottom two sides of the slide plate are fixedly connected to the output end of the second electric telescopic rod.

[0010] Preferably, an electric slide rail is fixedly installed on the bottom of the skateboard, a first slider is slidably connected to the surface of the electric slide rail, a U-shaped shell is fixedly installed on the bottom of the first slider, and the electric slide rail is electrically connected to the central processing unit.

[0011] Preferably: rotating rods are fixedly installed on both sides of the inner wall of the U-shaped shell through bearings, and a connecting block and a first gear are fixedly installed on the outer side walls of the rotating rod, the first gear is located on one side of the connecting block, and the bottom of the connecting block is fixedly connected to the top of the visual module, a second motor is fixedly installed on one side of the interior of the U-shaped shell, a second gear is fixedly installed on the output end of the second motor, the second gear is meshed with the first gear, and the second motor is electrically connected to the central processing unit, a circular slide groove is provided on the other side of the interior of the U-shaped shell, and a second slider is connected to the interior of the circular slide groove in a sliding manner, and one side of the second slider is fixedly connected to one side of the connecting block.

[0012] The embodiment of the present invention adopts the above technical solution, which has the following advantages:

[0013] 1. The present invention realizes angle position detection and tracking detection of products on the conveying and clamping mechanism through the vision module, edits operation instruction information through the computer, and sends instructions to the vision module to take pictures through the central processing unit. After the vision module takes the picture, it obtains the angle change of the currently detected product and the digital code on the product. The vision module transmits the information to the central processing unit again through the switch. The central processing unit controls the adjustment mechanism to perform multi-angle adjustment and correction. After the adjustment and correction, the information is transmitted to the storage for storage, which is convenient for direct shooting and detection of the product next time, effectively calibrating the vision module and improving the work efficiency of shooting and detection.

[0014] 2. When the present invention captures the product on the conveying and clamping mechanism through the vision module, the vision module transmits the information to the central processing unit through the switch, and the central processing unit simultaneously controls the second electric telescopic rod, the electric slide rail and the second motor to start, and drives the second gear, the first gear and the rotating rod to rotate through the second motor, and links the second slider on one side of the connecting block to slide in the circular slide groove, driving the slide plate to slide in coordination in the slide groove plate, effectively adjusting and correcting the vision module up and down, and driving the first slider to slide in coordination on the surface of the electric slide rail through the electric slide rail, effectively adjusting and correcting the vision module left and right, and driving the slide plate to slide in coordination in the slide groove plate through the second electric telescopic rod, effectively adjusting and correcting the vision module up and down, facilitating the vision module to perform multi-angle shooting and detection, and improving the detection stability of the vision module.

[0015] The above summary is for illustrative purposes only and is not intended to be limiting in any way. In addition to the illustrative aspects, embodiments and features described above, further aspects, embodiments and features of the present invention will be readily apparent by reference to the accompanying drawings and the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or technical descriptions. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0017] Figure 1 It is the overall structural diagram of the present invention;

[0018] Figure 2 It is a cross-sectional three-dimensional structural diagram of the U-shaped plate of the present invention;

[0019] Figure 3 It is a partial three-dimensional structural diagram of the chute plate of the present invention;

[0020] Figure 4 A sectional perspective structural diagram of the U-shaped shell of the present invention;

[0021] Figure 5 For the present invention Figure 2 A in the enlarged three-dimensional structure diagram;

[0022] Figure 6 It is a planar flow chart of the present invention.

[0023] Figure numerals: 1. box body; 2. second slider; 3. visual module; 4. U-shaped plate; 5. conveyor belt; 6. first motor; 7. first electric telescopic rod; 8. clamping plate; 9. damper; 10. housing; 11. conveyor belt; 12. spring; 13. slide plate; 14. second electric telescopic rod; 15. slide plate; 16. electric slide rail; 17. first slider; 18. U-shaped shell; 19. rotating rod; 20. first gear; 21. connecting block; 22. second motor; 23. second gear; 24. circular slide. DETAILED DESCRIPTION

[0024] Hereinafter, only certain exemplary embodiments are briefly described. As will be appreciated by those skilled in the art, the described embodiments may be modified in various ways without departing from the spirit or scope of the present invention. Therefore, the drawings and description are to be considered as illustrative in nature and not restrictive.

[0025] The embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0026] like Figure 1-6 As shown, an embodiment of the present invention provides a detection and correction device based on machine vision, including a box body 1, a vision module 3 and a control mechanism, and a conveying and clamping mechanism arranged on the top of the box body 1 for transporting products and an adjustment mechanism arranged on the top of the conveying and clamping mechanism for correcting and adjusting the vision module 3. The control mechanism includes a computer, a switch, a central processing unit and a storage device. The storage device is electrically connected to the vision module 3, and the vision module 3, the central processing unit and the computer are electrically connected to the switch respectively. The angle position detection and tracking detection of the product on the conveying and clamping mechanism are realized by the vision module 3, the operation instruction information is edited by the computer, and the instruction is sent by the central processing unit to let the vision module 3 take a picture. After the vision module 3 takes a picture, the angle change of the currently detected product and the digital code on the product are obtained. The vision module 3 transmits the information to the central processing unit again through the switch. The central processing unit controls the adjustment mechanism to perform multi-angle adjustment and correction. After the adjustment and correction, the information is transmitted to the storage device for storage, so that the product can be directly photographed and inspected next time, thereby achieving the correction purpose of the vision module 3 and improving the work efficiency of shooting and detection.

[0027] In this embodiment, specifically: the conveying and clamping mechanism includes a U-shaped plate 4 fixedly installed on the top of the box body 1, and conveyor belts 5 are fixedly installed on both sides of the inner wall of the U-shaped plate 4 through shafts, and a first motor 6 is fixedly installed on one side of the conveying U-shaped plate 4. The output end of the first motor 6 passes through the U-shaped plate 4 and is fixedly connected to the conveyor belt 5, and the first motor 6 is electrically connected to the central processing unit; the conveyor belt 5 is driven by the first motor 6 to rotate in the U-shaped plate 4 to convey the product. When the visual module 3 captures the product on the conveyor belt 5, the visual module 3 transmits the information to the central processing unit through the switch, and the central processing unit controls the first motor 6 to stop running, which is convenient for post-correction and adjustment.

[0028] In this embodiment, specifically: the conveying clamping mechanism also includes a first electric telescopic rod 7 fixedly mounted on both sides of the inner wall of the U-shaped plate 4, the output end of the first electric telescopic rod 7 is fixedly mounted with a clamping plate 8, the first electric telescopic rod 7 is electrically connected to the central processing unit, and the clamping plate 8 is fixedly mounted on the side away from the first electric telescopic rod 7 from left to right. A plurality of dampers 9 are fixedly mounted on the output end of the damper 9 with a shell 10, and a conveyor belt 11 is fixedly mounted inside the shell 10 through a shaft. The outer wall of the damper 9 is provided with a spring 12, and one end of the spring 12 is fixed to one side of the shell 10. The end of the spring 12 away from the shell 10 is fixedly connected to one side of the clamping plate 8; when the product on the conveyor belt 5 is photographed by the visual module 3, the visual module 3 transmits the information to the central processing unit through the switch, and the central processing unit controls the first electric telescopic rod 7 to start, driving the clamping plate 8 and the shell 10 to extend and retract forward, so that the conveyor belt 11 is in contact with the product on the conveyor belt 5. When the conveyor belt 11 is in contact with the product, the damper 9 and the spring 12 are extended and retracted to achieve the purpose of product conveying and clamping, which is convenient for buffering and clamping products of different sizes and improves the conveying stability of the product.

[0029] In this embodiment, specifically: the adjustment mechanism includes a slide plate 13 fixedly installed on both sides of the top of the U-shaped plate 4, and a second electric telescopic rod 14 is fixedly installed on the bottom of the inner wall of the slide plate 13, and the second electric telescopic rod 14 is electrically connected to the central processing unit. The internal sliding connection of the slide plate 13 is connected with a slide plate 15, and the bottom two sides of the slide plate 15 are fixedly connected to the output end of the second electric telescopic rod 14; when the product on the conveying and clamping mechanism is photographed by the visual module 3, the visual module 3 transmits the information to the central processing unit through the switch, and the central processing unit controls the second electric telescopic rod 14 to start, driving the slide plate 15 to slide in the slide plate 13, thereby achieving the purpose of up and down height adjustment correction of the visual module 3, and improving the up and down height correction shooting detection angle of the visual module 3.

[0030] In this embodiment, specifically: an electric slide rail 16 is fixedly installed at the bottom of the skateboard 15, and a first slider 17 is slidably connected to the surface of the electric slide rail 16. A U-shaped shell 18 is fixedly installed at the bottom of the first slider 17, and the electric slide rail 16 is electrically connected to the central processing unit; when the product on the conveying and clamping mechanism is photographed by the visual module 3, the visual module 3 transmits the information to the central processing unit through the switch, and the central processing unit controls the electric slide rail 16 to start, driving the first slider 17 to slide on the surface of the electric slide rail 16, thereby achieving the purpose of left and right adjustment and correction of the visual module 3, and improving the left and right correction shooting detection angle of the visual module 3.

[0031] In this embodiment, specifically: a rotating rod 19 is fixedly installed on both sides of the inner wall of the U-shaped shell 18 through a bearing, and a connecting block 21 and a first gear 20 are fixedly installed on the outer wall of the rotating rod 19. The first gear 20 is located on one side of the connecting block 21, and the bottom of the connecting block 21 is fixedly connected to the top of the visual module 3. A second motor 22 is fixedly installed on one side of the interior of the U-shaped shell 18, and a second gear 23 is fixedly installed on the output end of the second motor 22. The second gear 23 is meshed with the first gear 20, and the second motor 22 is electrically connected to the central processing unit. A circular slide groove 24 is opened on the other side of the interior of the U-shaped shell 18 The internal sliding fit of the circular slide 24 is connected to the second slider 2, and one side of the second slider 2 is fixedly connected to one side of the connecting block 21; when the product on the conveying and clamping mechanism is photographed by the visual module 3, the visual module 3 transmits the information to the central processing unit through the switch, and the central processing unit controls the second motor 22 to start, driving the second gear 23, the first gear 20 and the rotating rod 19 to rotate, and links the second slider 2 on the side of the connecting block 21 to slide in the circular slide 24, thereby achieving the purpose of tilt adjustment correction of the visual module 3, and improving the tilt correction shooting detection angle and tilt adjustment stability of the visual module 3.

[0032] When the present invention is working: the angle position detection and tracking detection of the product on the conveying and clamping mechanism are realized through the visual module 3, the operation instruction information is edited by the computer, and the instruction is sent by the central processing unit to let the visual module 3 take a photo. After the visual module 3 takes the photo, the angle change of the currently detected product and the digital code on the product are obtained. The visual module 3 transmits the information to the central processing unit again through the switch. The central processing unit controls the adjustment mechanism to perform multi-angle adjustment and correction. After the adjustment and correction, the information is transmitted to the storage for storage, which is convenient for directly photographing and detecting the product next time, thereby achieving the correction purpose of the visual module 3 and improving the working efficiency of shooting and detection.

[0033] The conveyor belt 5 is driven to rotate in the U-shaped plate 4 by the first motor 6 to convey the products. When the vision module 3 captures the products on the conveyor belt 5, the vision module 3 transmits the information to the central processing unit through the switch, and the central processing unit controls the first motor 6 to stop running, which is convenient for post-correction adjustment. When the vision module 3 captures the products on the conveyor belt 5, the vision module 3 transmits the information to the central processing unit through the switch, and the central processing unit controls the first electric telescopic rod 7 to start, driving the clamping plate 8 and the shell 10 to extend and retract forward, so that the conveyor belt 11 contacts the products on the conveyor belt 5. When the conveyor belt 11 contacts the products, the damper 9 and the spring 12 extend and retract to achieve the purpose of product conveying and clamping, which is convenient for buffering and clamping products of different sizes and improves the conveying stability of the products.

[0034] When the product on the conveying and clamping mechanism is photographed by the vision module 3, the vision module 3 transmits the information to the central processing unit through the switch, and the central processing unit simultaneously controls the second electric telescopic rod 14, the electric slide rail 16 and the second motor 22 to start, and the second motor 22 drives the second gear 23, the first gear 20 and the rotating rod 19 to rotate, and the second slider 2 on one side of the linkage connecting block 21 slides in the circular slide groove 24, driving the slide plate 15 to slide in the slide groove plate 13, effectively adjusting the visual module 3 up and down. The electric slide rail 16 drives the first slider 17 to slide on the surface of the electric slide rail 16, effectively adjusting the visual module 3 left and right. The second electric telescopic rod 14 drives the slide plate 15 to slide in the slide groove plate 13, effectively adjusting the visual module 3 up and down, facilitating the visual module 3 to perform multi-angle shooting detection, and improving the detection stability of the visual module 3.

[0035] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any person skilled in the art can easily conceive of various modifications and substitutions within the technical scope disclosed in the present invention, and such modifications and substitutions are intended to be within the scope of protection of the present invention. Therefore, the scope of protection of the present invention shall be subject to the scope of protection of the claims.

Claims

1. A detection and correction device based on machine vision, comprising a box (1), a vision module (3) and a control mechanism, a conveying and clamping mechanism arranged on the top of the box (1) for transporting products, and an adjustment mechanism arranged on the top of the conveying and clamping mechanism for calibrating and adjusting the vision module (3), characterized in that: The control mechanism includes a computer, a switch, a central processing unit and a storage; The storage device is electrically connected to the visual module (3), and the visual module (3), the central processing unit, and the computer are electrically connected to the switch respectively; The conveying and clamping mechanism comprises a U-shaped plate (4) fixedly mounted on the top of the box body (1), and conveyor belts (5) are fixedly mounted on both sides of the inner wall of the U-shaped plate (4) via shafts; The adjustment mechanism comprises a chute plate (13) fixedly mounted on both sides of the top of the U-shaped plate (4), and a second electric telescopic rod (14) fixedly mounted on the bottom of the inner wall of the chute plate (13); The slide plate (15) is connected to the interior of the slide plate (13) in a sliding manner, and both sides of the bottom of the slide plate (15) are fixedly connected to the output end of the second electric telescopic rod (14); An electric slide rail (16) is fixedly mounted on the bottom of the slide plate (15); a first slider (17) is slidably connected to the surface of the electric slide rail (16); and a U-shaped shell (18) is fixedly mounted on the bottom of the first slider (17); A rotating rod (19) is fixedly mounted on both sides of the inner wall of the U-shaped shell (18) via bearings, and a connecting block (21) and a first gear (20) are fixedly mounted on the outer side wall of the rotating rod (19), wherein the first gear (20) is located on one side of the connecting block (21), and the bottom of the connecting block (21) is fixedly connected to the top of the visual module (3); A second motor (22) is fixedly mounted on one side of the interior of the U-shaped housing (18), a second gear (23) is fixedly mounted on the output end of the second motor (22), and the second gear (23) is meshingly connected to the first gear (20); a circular slide groove (24) is provided on the other side of the interior of the U-shaped housing (18), and a second slider (2) is slidably connected to the interior of the circular slide groove (24).

2. The machine vision-based detection and correction device according to claim 1, characterized in that: A first motor (6) is fixedly mounted on one side of the U-shaped plate (4), an output end of the first motor (6) passes through the U-shaped plate (4) and is fixedly connected to the conveyor belt (5), and the first motor (6) is electrically connected to the central processing unit.

3. The machine vision-based detection and correction device according to claim 2, characterized in that: The conveying and clamping mechanism further comprises a first electric telescopic rod (7) fixedly mounted on both sides of the inner wall of the U-shaped plate (4), a clamping plate (8) being fixedly mounted on the output end of the first electric telescopic rod (7), and the first electric telescopic rod (7) is electrically connected to the central processing unit.

4. The machine vision-based detection and correction device according to claim 3, characterized in that: A plurality of dampers (9) are fixedly mounted on a side of the clamping plate (8) away from the first electric telescopic rod (7) in sequence from left to right, a housing (10) is fixedly mounted on an output end of the damper (9), and a transmission belt (11) is fixedly mounted inside the housing (10) via a shaft.

5. The machine vision-based detection and correction device according to claim 4, characterized in that: The outer wall of the damper (9) is provided with a spring (12), one end of the spring (12) is fixedly connected to one side of the housing (10), and the end of the spring (12) away from the housing (10) is fixedly connected to one side of the clamping plate (8).

6. The detection and correction device based on machine vision according to claim 5, characterized in that: The second electric telescopic rod (14) is electrically connected to the central processing unit.

7. The machine vision-based detection and correction device according to claim 6, characterized in that: The electric slide rail (16) is electrically connected to the central processing unit.

8. The machine vision-based detection and correction device according to claim 7, characterized in that: The second motor (22) is electrically connected to the central processing unit; One side of the second sliding block (2) is fixedly connected to one side of the connecting block (21).

Images