Mobile visual identification part defect detection device

Abstract

The utility model relates to the technical field of defect detection, in particular to a movable visual identification part defect detection device which comprises a bottom plate and a machine vision intelligent camera, a conveying seat is fixedly mounted at the top of the bottom plate, and an L-shaped fixing plate is fixedly mounted at the middle end of the bottom of the conveying seat; a driving motor is fixedly installed at the upper end of the front face of the L-shaped fixing plate, and the output end of the driving motor is fixedly connected with a driving shaft. Through the cooperation of the structures, the device has the advantage of high defect detection precision, and solves the problem that when the appearance detection is carried out on an existing part, the part is generally detected after stably passing through the lower part of visual detection system equipment through a conveying belt; and for some part structures which are internally sunken and have downwards bent curved surfaces at the edges, the downwards bent curved surfaces can generate adverse effects on defect detection data, so that transmitted images are not clear, and the defect detection result is easy to deviate.

Description

Technical Field

[0001] This utility model relates to the field of defect detection technology, specifically a mobile visual recognition part defect detection device. Background Technology

[0002] Parts are the fundamental components of a machine. Further disassembling a machine yields various parts, and part defect detection refers to the use of various technical means to inspect the surface or internal defects of parts to ensure that their quality and performance meet standards. These defects may include cracks, scratches, stains, dimensional deviations, etc. These defects not only affect the aesthetics of the parts but can also seriously impact the function and safety of the product. Therefore, part defect detection plays a crucial role in manufacturing, ensuring that products meet stringent standards.

[0003] Currently, when performing visual inspection on existing parts, the parts are usually conveyed smoothly under the vision inspection system equipment via a conveyor belt to complete the inspection. However, for some parts with internal recesses and downward curved surfaces at the edges, the downward curved surfaces can adversely affect the defect detection data, resulting in unclear transmitted images and making the defect detection results prone to deviation. To address this, we propose a mobile vision recognition part defect detection device. Utility Model Content

[0004] The purpose of this invention is to provide a mobile visual recognition part defect detection device with the advantage of high defect detection accuracy. It solves the problem that when performing appearance inspection on existing parts, the parts are usually smoothly passed under the visual inspection system equipment by a conveyor belt to complete the inspection. However, for some parts with internal concave structures and downward curved surfaces at the edges, the downward curved surfaces will adversely affect the defect detection data, resulting in unclear transmitted images and making the defect detection results prone to deviation.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a mobile visual recognition part defect detection device, comprising a base plate and a machine vision intelligent camera. A conveyor seat is fixedly installed on the top of the base plate, and an L-shaped fixing plate is fixedly installed at the middle of the bottom of the conveyor seat. A drive motor is fixedly installed on the upper end of the front of the L-shaped fixing plate, and a drive shaft is fixedly connected to the output end of the drive motor. A fixing plate is fixedly connected to the front end of the top of the conveyor seat, and a rotating shaft is movably connected to the upper end of the fixing plate via a bearing. A notched gear is fixedly connected to the rear side of the rotating shaft. Multiple equidistantly distributed fixing seats are fixedly installed on the surface of the conveyor belt of the conveyor seat. The top of the fixing seat... A hinge seat is fixedly connected to the middle end of the fixed seat. A connecting block is hinged to the inner side of the hinge seat. An arc-shaped half gear is fixedly connected to the bottom of the connecting block. A positioning carrier plate is fixedly installed on the top of the connecting block. A rotating shaft is movably connected to the lower end of the inner side of the fixed seat through a bearing. A rotating roller is fixedly connected to the middle end of the outer surface of the rotating shaft. A reciprocating groove is opened on the outer surface of the rotating roller. A movable sleeve is slidably connected to the outer surface of the rotating roller. A guide protrusion sliding in the reciprocating groove is provided on one side of the inner wall of the movable sleeve. A toothed plate that meshes with the arc-shaped half gear is fixedly connected to the top of the movable sleeve. Rotating gears are fixedly connected to the front of the rotating shaft and the rotating shaft, as well as the rear side of the drive shaft.

[0006] Preferably, a mounting bracket is fixedly installed at the rear end of the top of the base plate, an electric push rod is fixedly installed at the top of the mounting bracket, and a machine vision intelligent camera is fixedly installed at the extended end of the electric push rod.

[0007] Preferably, the rotating gear on the front of the rotating shaft meshes with the notched gear, and the rotating gear on the rear side of the drive shaft meshes with the rotating gear on the front of the rotating shaft.

[0008] Preferably, a drive half gear is fixedly connected to the outer surface of the drive shaft, a drive pulley is movably connected to the middle of the front side of the conveyor seat via an auxiliary shaft, and a driven pulley is fixedly connected to the conveyor seat transmission roller at the right end of the front side of the conveyor seat.

[0009] Preferably, a synchronous belt is fitted around the outer side of the driven pulley and the drive pulley, and a driven gear that meshes with the drive half gear is fixedly connected to the front side of the drive pulley.

[0010] Preferably, the radius of the drive pulley is three to six times that of the driven pulley.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0012] 1. This utility model, through the setting of the fixed base, allows the rotating gear on the rear side of the drive shaft to rotate synchronously when the drive motor drives the drive shaft to rotate. This, in turn, with the assistance of the rotating gear meshing with the front of the rotating shaft, drives the rotating shaft and the notched gear to rotate. When the notched gear rotates, it can drive the rotating shaft and the rotating roller to rotate synchronously via the rotating gear on the front of the rotating shaft. When the rotating roller rotates, it forces the guide protrusion to slide on the inner side of the reciprocating groove, thus allowing the moving sleeve to complete one reciprocating motion on the outer side of the rotating roller. When the moving sleeve moves, it can drive the toothed plate to move synchronously. When the toothed plate moves, it can... With the assistance of the meshing arc-shaped half gear, the connecting block is driven to swing around the hinge point of the hinge seat. When the connecting block swings, it drives the positioning carrier plate to move synchronously. This allows the internally recessed part structure with downward-curved edges placed on the top of the positioning carrier plate to complete a uniform swing-state defect detection of the smart device screen below the machine vision smart camera. This avoids the situation where the downward-curved screen on both sides is not clear in the horizontal movement state, which would cause the downward-curved ends on both sides and the transmitted camera image to be unclear, resulting in deviation in the defect detection results.

[0013] 2. This utility model, through the configuration of the drive pulley, allows the drive shaft and drive half gear to rotate when the drive motor drives them, which in turn drives the drive pulley to rotate via the meshing driven gear. The rotation of the drive pulley, in conjunction with the synchronous belt, drives the driven pulley to rotate. The rotation of the driven pulley, in turn, drives the rightmost transmission roller inside the conveyor seat to rotate. This rotating transmission roller then drives the conveyor belt inside the conveyor seat to achieve intermittent conveying. When the conveyor belt inside the conveyor seat pauses conveying, the fixed seat moves precisely below the machine vision intelligent camera, and at the notch... With the assistance of the gears, the rotating gear on the front of the rotating shaft moves directly below the notched gear. After the notched gear meshes with the rotating gear on the front of the rotating shaft, it rotates half a turn. This causes the rotating gear on the front of the rotating shaft to rotate one full turn, allowing the connecting block to complete one swinging motion. Then, when the driving half gear meshes with the driven gear again, it can drive the conveyor belt inside the conveyor seat to move again. This allows the device to perform a defect detection under a uniform swinging state on the positioning carrier plate below the machine vision intelligent camera during intermittent conveying. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0015] Figure 2 This is a schematic diagram of the mating structure of the fixing base and the L-shaped fixing plate of this utility model;

[0016] Figure 3 This is a schematic diagram of the cooperative structure of the rotating roller and the arc-shaped half gear of this utility model;

[0017] Figure 4 This is an exploded view of part of the structure of this utility model.

[0018] In the diagram: 1. Base plate; 2. Conveyor seat; 3. Mounting bracket; 4. Machine vision intelligent camera; 5. Electric push rod; 6. Fixed seat; 7. Driven pulley; 8. L-shaped fixed plate; 9. Drive motor; 10. Driven gear; 11. Fixed plate; 12. Hinge seat; 13. Positioning carrier plate; 14. Drive pulley; 15. Synchronous belt; 16. Drive half gear; 17. Rotating shaft; 18. Arc-shaped half gear; 19. Connecting block; 20. Toothed plate; 21. Rotating shaft; 22. Rotating roller; 23. Drive shaft; 24. Moving sleeve; 25. Reciprocating track groove; 26. Guide protrusion; 27. Rotating gear; 28. Notched gear. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] In the description of this utility model, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicate the orientation or positional relationship 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 be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. In addition, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0021] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0022] The components of this application, including base plate 1, conveyor seat 2, mounting bracket 3, machine vision intelligent camera 4, electric push rod 5, fixed seat 6, driven pulley 7, L-shaped fixed plate 8, drive motor 9, driven gear 10, fixed plate 11, hinge seat 12, positioning carrier plate 13, drive pulley 14, synchronous belt 15, drive half gear 16, rotating shaft 17, arc-shaped half gear 18, connecting block 19, toothed plate 20, rotating shaft 21, rotating roller 22, drive shaft 23, moving sleeve 24, reciprocating track groove 25, guide protrusion 26, rotating gear 27, and notched gear 28, are all general standard parts or parts known to those skilled in the art. Their structure and principle can be learned by those skilled in the art through technical manuals or conventional experimental methods.

[0023] Example 1

[0024] Please see Figures 1-4 As shown, this utility model provides a technical solution: a mobile visual recognition part defect detection device, including a base plate 1 and a machine vision intelligent camera 4. A mounting bracket 3 is fixedly installed at the rear end of the top of the base plate 1, and an electric push rod 5 is fixedly installed at the top of the mounting bracket 3. The machine vision intelligent camera 4 is fixedly installed at the extended end of the electric push rod 5. A conveyor seat 2 is fixedly installed at the top of the base plate 1. An L-shaped fixing plate 8 is fixedly installed at the middle of the bottom of the conveyor seat 2. A drive motor 9 is fixedly installed at the upper end of the front of the L-shaped fixing plate 8. A drive shaft 23 is fixedly connected to the output end of the drive motor 9. A fixing plate 11 is fixedly connected to the front end of the top of the conveyor seat 2. A rotating shaft 17 is movably connected to the upper end of the fixing plate 11 through a bearing. A notched gear 28 is fixedly connected to the rear side of the rotating shaft 17. Multiple equidistantly distributed fixing seats 6 are fixedly installed on the surface of the conveyor belt of the conveyor seat 2. A hinge seat is fixedly connected to the middle of the top of the fixing seat 6. 12. A connecting block 19 is hinged to the inner side of the hinge seat 12. An arc-shaped half gear 18 is fixedly connected to the bottom of the connecting block 19. A positioning carrier plate 13 is fixedly installed on the top of the connecting block 19. A rotating shaft 21 is movably connected to the lower end of the inner side of the fixed seat 6 through a bearing. A rotating roller 22 is fixedly connected to the middle end of the outer surface of the rotating shaft 21. A reciprocating groove 25 is opened on the outer surface of the rotating roller 22. A movable sleeve 24 is slidably connected to the outer surface of the rotating roller 22. A guide protrusion 26 that slides in the reciprocating groove 25 is provided on one side of the inner wall of the movable sleeve 24. A toothed plate 20 that meshes with the arc-shaped half gear 18 is fixedly connected to the top of the movable sleeve 24. Rotating gears 27 are fixedly connected to the front of the rotating shaft 21 and the rotating shaft 17, as well as the rear side of the drive shaft 23. The rotating gear 27 on the front of the rotating shaft 21 meshes with the notched gear 28. The rotating gear 27 on the rear side of the drive shaft 23 meshes with the rotating gear 27 on the front of the rotating shaft 17.

[0025] This technical solution: With the setting of the fixed base 6, when the drive motor 9 drives the drive shaft 23 to rotate, the rotating gear 27 on the rear side of the drive shaft 23 will rotate synchronously. Then, with the assistance of the rotating gear 27 meshing with the front of the rotating shaft 17, the rotating shaft 17 and the notched gear 28 will rotate. When the notched gear 28 rotates, it can drive the rotating shaft 21 and the rotating roller 22 to rotate synchronously through the rotating gear 27 on the front of the rotating shaft 21. When the rotating roller 22 rotates, it can force the guide protrusion 26 to slide on the inner side of the reciprocating track groove 25, so that the moving sleeve 24 can complete one reciprocating motion on the outer side of the rotating roller 22. When the moving sleeve 24 moves, it can drive the toothed plate 20 to rotate synchronously. When the toothed plate 20 moves, it can drive the connecting block 19 to swing around the hinge point of the hinge seat 12 with the assistance of the meshing arc half gear 18. When the connecting block 19 swings, it will drive the positioning carrier plate 13 to move synchronously. This will enable the internally recessed part structure with downward curved edges placed on the top of the positioning carrier plate 13 to complete a uniform swing state defect detection of the smart device screen below the machine vision smart camera 4. This avoids the situation where the downward curved screen on both sides is not clear when detecting defects in the horizontal movement state, which would cause the downward curved ends on both sides and the transmitted camera image to be unclear, resulting in deviation of the defect detection results.

[0026] It should be noted that: Based on the machine vision inspection system, the machine vision intelligent camera 4 converts the captured target into an image signal and transmits it to a dedicated image processing system. According to the pixel distribution and information such as brightness and color, it is converted into a digital signal. The image system performs various operations on the feedback signal to extract the target's features, uses image processing algorithms to perform defect detection and other operations, and then determines the defect detection status of the smart device screen based on the judgment results. Furthermore, the machine vision intelligent camera 4 is a mature product purchased from the market, and its circuit connection with this device is all existing technology.

[0027] Example 2

[0028] Based on Embodiment 1, this utility model is as follows: Figures 1-4 As shown, a drive half gear 16 is fixedly connected to the outer surface of the drive shaft 23. A drive pulley 14 is movably connected to the middle of the front of the conveyor seat 2 via an auxiliary shaft. A driven pulley 7 is fixedly connected to the transmission roller of the conveyor seat 2 at the right end of the front of the conveyor seat 2. A synchronous belt 15 is sleeved on the outer side of the driven pulley 7 and the drive pulley 14. A driven gear 10 that meshes with the drive half gear 16 is fixedly connected to the front of the drive pulley 14. The radius of the drive pulley 14 is three to six times the radius of the driven pulley 7.

[0029] This technical solution: By setting the drive pulley 14, when the drive motor 9 drives the drive shaft 23 and drive half gear 16 to rotate, the drive pulley 14 can be driven to rotate through the meshing driven gear 10. When the drive pulley 14 rotates, it can drive the driven pulley 7 to rotate with the help of the synchronous belt 15. When the driven pulley 7 rotates, it can drive the rightmost transmission roller on the inner side of the conveyor seat 2 to rotate. The rotating transmission roller can drive the conveyor belt on the inner side of the conveyor seat 2 to achieve intermittent conveying. When the conveyor belt on the inner side of the conveyor seat 2 stops conveying, the fixed seat 6 moves just below the machine vision intelligent camera 4. With the assistance of the notched gear 28, the rotating gear 27 on the front of the rotating shaft 21 moves just below the notched gear 28 (e.g., Figures 3-4 As shown), after the notched gear 28 meshes with the rotating gear 27 on the front of the rotating shaft 21, it rotates half a turn. Then, the rotating gear 27 on the front of the rotating shaft 21 can drive the rotating shaft 21 to rotate just one turn, so that the connecting block 19 completes one swinging motion. Then, when the driving half gear 16 meshes with the driven gear 10 again, it can drive the conveyor belt on the inner side of the conveyor seat 2 to move again. This allows the device to detect defects in a uniform swinging state under the machine vision intelligent camera 4 during intermittent conveying, where the internal recessed part structure with downward curved edges is placed on the top of the positioning plate 13.

[0030] It is important to note that the constructions and arrangements of this application shown in several different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, those who consult this disclosure will readily understand that many modifications are possible (e.g., changes in the size, dimensions, structure, shape and proportion of various elements, as well as parameter values ​​(e.g., temperature, pressure, etc.), mounting arrangements, use of materials, color, orientation, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in this application). For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of elements may be inverted or otherwise altered, and the nature or number or position of discrete elements may be changed or altered. Therefore, all such modifications are intended to be included within the scope of this utility model. The order or sequence of any process or method steps may be changed or rearranged according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure described herein that performs the function, and not only structural equivalents but also equivalent structures. Without departing from the scope of this invention, other substitutions, modifications, alterations, and omissions may be made in the design, operation, and arrangement of the exemplary embodiments. Therefore, this invention is not limited to the specific embodiments, but extends to various modifications that still fall within the scope of the appended claims.

[0031] Furthermore, in order to provide a concise description of exemplary embodiments, not all features of actual embodiments (i.e., those features that are not relevant to the best mode of carrying out the present invention as currently considered, or those features that are not relevant to implementing the present invention) may be omitted.

[0032] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit the scope of protection of this utility model. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the essence and scope of the technical solutions of this utility model.

Claims

1. A mobile visual identification part defect detection device, comprising a bottom plate (1) and a machine vision intelligent camera (4), characterized in that: The top of the bottom plate (1) is fixedly installed with a conveying seat (2), the bottom of the conveying seat (2) is fixedly installed with an L-shaped fixed plate (8), the front surface of the L-shaped fixed plate (8) is fixedly installed with a driving motor (9), the output end of the driving motor (9) is fixedly connected with a driving shaft (23), the top of the conveying seat (2) is fixedly connected with a fixed plate (11), the upper end of the fixed plate (11) is movably connected with a rotating shaft (17) through a bearing, the rear side of the rotating shaft (17) is fixedly connected with a notched gear (28), the conveying belt surface of the conveying seat (2) is fixedly installed with a plurality of equidistantly distributed fixed seats (6), the middle end of the top of the fixed seat (6) is fixedly connected with a hinged seat (12), the inner side of the hinged seat (12) is hingedly connected with a connecting block (19), the bottom of the connecting block (19) is fixedly connected with an arc-shaped half gear (18), the top of the connecting block (19) is fixedly installed with a positioning carrier plate (13), the lower end of the inner side of the fixed seat (6) is movably connected with a rotating shaft (21) through a bearing, the middle end of the outer surface of the rotating shaft (21) is fixedly connected with a rotating roller (22), the outer surface of the rotating roller (22) is provided with a reciprocating rail groove (25), the outer surface of the rotating roller (22) is slidably connected with a moving sleeve (24), one side of the inner wall of the moving sleeve (24) is provided with a guide protrusion (26) which slides in the reciprocating rail groove (25), the top of the moving sleeve (24) is fixedly connected with a gear plate (20) which meshes with the arc-shaped half gear (18), the front surfaces of the rotating shaft (21) and the rotating shaft (17) and the rear side of the driving shaft (23) are all fixedly connected with rotating gears (27).

2. The mobile visual recognition part defect detection device according to claim 1, characterized in that: The rear end of the top of the bottom plate (1) is fixedly installed with a mounting rack (3), the top of the mounting rack (3) is fixedly installed with an electric push rod (5), and a machine vision intelligent camera (4) is fixedly installed on the extending end of the electric push rod (5).

3. The mobile visual recognition part defect detection device according to claim 1, wherein: The rotating gears (27) on the front surface of the rotating shaft (21) mesh with the notched gear (28), and the rotating gears (27) on the rear side of the driving shaft (23) mesh with the rotating gears (27) on the front surface of the rotating shaft (17).

4. The mobile visual inspection system of claim 1, wherein: The outer surface of the driving shaft (23) is fixedly connected with a driving half gear (16), the middle end of the front surface of the conveying seat (2) is movably connected with a driving pulley (14) through an auxiliary shaft, and the right end of the front surface of the conveying seat (2) is provided with a driven pulley (7) which is fixedly connected with a conveying roller of the conveying seat (2).

5. The mobile visual inspection system of claim 4, wherein: The outer sides of the driven pulley (7) and the driving pulley (14) are sleeved with a synchronous belt (15), and the front surface of the driving pulley (14) is fixedly connected with a driven gear (10) which meshes with the driving half gear (16).

6. The mobile visual inspection system of claim 5, wherein: The radius size of the driving pulley (14) is three to six times the radius size of the driven pulley (7).

Images