CN114589124B - Detection equipment for cylindrical surface defects - Google Patents

Detection equipment for cylindrical surface defects Download PDF

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Publication number
CN114589124B
CN114589124B CN202210500111.3A CN202210500111A CN114589124B CN 114589124 B CN114589124 B CN 114589124B CN 202210500111 A CN202210500111 A CN 202210500111A CN 114589124 B CN114589124 B CN 114589124B
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China
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plate
stage
fixed plate
movable plate
driving device
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CN202210500111.3A
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CN114589124A (en
Inventor
程建民
冯晓虎
吴洪坤
饶钦
王玉宏
刘超
宋云霞
郭晋竹
何永
白雁兵
贾松林
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CETC Fenghua Information Equipment Co Ltd
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CETC Fenghua Information Equipment Co Ltd
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B07SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07CPOSTAL SORTING; SORTING INDIVIDUAL ARTICLES, OR BULK MATERIAL FIT TO BE SORTED PIECE-MEAL, e.g. BY PICKING
    • B07C5/00Sorting according to a characteristic or feature of the articles or material being sorted, e.g. by control effected by devices which detect or measure such characteristic or feature; Sorting by manually actuated devices, e.g. switches
    • B07C5/34Sorting according to other particular properties
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B07SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07CPOSTAL SORTING; SORTING INDIVIDUAL ARTICLES, OR BULK MATERIAL FIT TO BE SORTED PIECE-MEAL, e.g. BY PICKING
    • B07C5/00Sorting according to a characteristic or feature of the articles or material being sorted, e.g. by control effected by devices which detect or measure such characteristic or feature; Sorting by manually actuated devices, e.g. switches
    • B07C5/02Measures preceding sorting, e.g. arranging articles in a stream orientating
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B07SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07CPOSTAL SORTING; SORTING INDIVIDUAL ARTICLES, OR BULK MATERIAL FIT TO BE SORTED PIECE-MEAL, e.g. BY PICKING
    • B07C5/00Sorting according to a characteristic or feature of the articles or material being sorted, e.g. by control effected by devices which detect or measure such characteristic or feature; Sorting by manually actuated devices, e.g. switches
    • B07C5/36Sorting apparatus characterised by the means used for distribution
    • B07C5/361Processing or control devices therefor, e.g. escort memory
    • B07C5/362Separating or distributor mechanisms
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B07SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07CPOSTAL SORTING; SORTING INDIVIDUAL ARTICLES, OR BULK MATERIAL FIT TO BE SORTED PIECE-MEAL, e.g. BY PICKING
    • B07C5/00Sorting according to a characteristic or feature of the articles or material being sorted, e.g. by control effected by devices which detect or measure such characteristic or feature; Sorting by manually actuated devices, e.g. switches
    • B07C5/36Sorting apparatus characterised by the means used for distribution
    • B07C5/38Collecting or arranging articles in groups
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/84Systems specially adapted for particular applications
    • G01N21/88Investigating the presence of flaws or contamination
    • G01N21/89Investigating the presence of flaws or contamination in moving material, e.g. running paper or textiles
    • G01N21/8914Investigating the presence of flaws or contamination in moving material, e.g. running paper or textiles characterised by the material examined
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E30/00Energy generation of nuclear origin
    • Y02E30/30Nuclear fission reactors

Abstract

The invention relates to the technical field of bar surface detection, and particularly discloses a detection device for defects on a cylindrical surface, which comprises a bottom box body (1), wherein a feeding inclined plate (2) is obliquely arranged inwards on the surface of the bottom box body (1), a row of material distributing rods (3) are uniformly arranged at the feeding end edge of the feeding inclined plate (2), and a horizontal cylindrical bar (32) is arranged between every two adjacent material distributing rods (3); a first driving device (5) is installed in the bottom box body (1), and three layers of movable plates, namely a primary movable plate (6), a secondary movable plate (7) and a tertiary movable plate (8), are arranged at the driving end of the first driving device (5) in parallel; three layers of fixed plates are fixedly arranged in the middle of the bottom box body (1) in parallel, and are a first-stage fixed plate (9), a second-stage fixed plate (10) and a third-stage fixed plate (11). The invention realizes the detection of the surface defects of the cylindrical bar in an automatic mode without manual intervention, improves the detection reliability and efficiency, and is suitable for large-scale production of magnetic material enterprises.

Description

Detection equipment for cylindrical surface defects
Technical Field
The invention relates to the technical field of bar surface detection, in particular to automatic high-speed detection equipment for surface defects of a cylindrical product.
Background
At present, for the product of the cylindrical bar-shaped magnetic material which is subjected to mould pressing, sintering and grinding, the defects of the cylindrical surface of the product are detected before delivery so as to find the defects of unfilled corners, black skin, pits or cracks on the surface of the magnetic bar. The conventional method adopts manual work to spread the magnetic rods flatly, unqualified products are removed in a visual inspection mode, the production efficiency is low, the labor intensity is high, missing inspection is easy to form, and the production environment is relatively severe.
Disclosure of Invention
The invention aims to provide a detection device for defects of a cylindrical surface, which is applied to magnetic rod detection in the magnetic material industry.
The invention is realized by adopting the following technical scheme:
the detection equipment for the defects of the cylindrical surface comprises a bottom box body, wherein a feeding inclined plate is obliquely arranged on the surface of the bottom box body inwards, a row of material distributing rods are uniformly arranged at the feeding end edge of the feeding inclined plate, and a transverse cylindrical bar is arranged between every two adjacent material distributing rods; a first driving device is installed in the bottom box body, and three layers of movable plates, namely a primary movable plate, a secondary movable plate and a tertiary movable plate, are arranged at the driving end of the first driving device in parallel; three layers of fixed plates are fixedly arranged in parallel in the middle of the bottom box body, namely a first-stage fixed plate, a second-stage fixed plate and a third-stage fixed plate, and the heights of the fixed plates are sequentially increased; the three layers of movable plates and the three layers of fixed plates are inserted in a staggered mode at the same inclination angle, the movable plates and the fixed plates are in clearance fit, and the first-stage movable plate is in clearance fit with the feeding end edge of the feeding inclined plate; when the first driving device is in the lowest stroke, the first-stage movable plate descends to a position lower than the feeding end edge of the feeding inclined plate, the second-stage movable plate descends to a position lower than the upper end of the first-stage fixed plate, and the third-stage movable plate descends to a position lower than the upper end of the second-stage fixed plate; when the first driving device is in the highest stroke, the first-stage movable plate rises to be higher than the upper end of the first-stage fixed plate, the second-stage movable plate rises to be higher than the upper end of the second-stage fixed plate, and the third-stage movable plate rises to be higher than the upper end of the third-stage fixed plate; the upper end face of the third-level fixed plate is an inclined face.
A fixed plate is transversely and fixedly arranged at the rear part of the bottom box body, a transversely arranged movable plate is slidably arranged on guide rails at two sides of the fixed plate, rotary roller brackets are respectively arranged at two sides of the front end of the movable plate, a rotary roller is arranged between the rotary roller brackets at two sides, and an adjustable gap is formed between the rotary roller and the lower end edge of an inclined plane of the third-stage fixed plate; a second driving device is installed in the middle of the fixed plate through a fixed seat, and the driving end of the second driving device is connected with the middle of the movable plate; and a motor is arranged at one end of the moving plate and drives the rotating roller to rotate through a transmission mechanism.
The bottom box body is provided with a qualified product guide plate which is obliquely arranged, the feed end of the qualified product guide plate is connected with the lower end edge of the inclined surface of the third-stage fixed plate, and the discharge end of the qualified product guide plate is connected with a qualified product box; a row of material leaking openings are formed in the qualified product material guide plate, and the positions of the material leaking openings correspond to the distribution positions of the cylindrical bars; an unqualified product guide plate is obliquely arranged below the qualified product guide plate, and the discharge end of the unqualified product guide plate is connected with an unqualified product feed box; the material-distributing turning plates are respectively hinged in all the material leaking openings; the back of the three-stage fixed plate is provided with a plurality of turning plate driving devices, and the driving end of each turning plate driving device is connected with a corresponding material-distributing turning plate (the function is to ensure that the material-distributing turning plate is positioned in a corresponding material-leaking port to realize that the material-leaking port does not discharge material, or the material-distributing turning plate is connected with an unqualified material guide plate to realize that the material is discharged from the material-leaking port).
The bottom box body is provided with an outer frame, one or more CCD cameras are arranged on the outer frame, and shooting windows of the CCD cameras are located above the inclined planes of the three stages of fixed plates.
During operation, the cylindrical magnetic rods are randomly placed on the feeding inclined plate, are arranged on the inclined surface of the feeding inclined plate and move towards the push plate mechanism under the action of the vibrator. Under the action of the material distributing rod, the cylindrical magnetic rods can be randomly arranged on the primary movable plate of the push plate mechanism and move upwards along with the primary movable plate. Only one bar can be transversely arranged at a certain position on the primary movable plate, and the arrangement of the bar on the primary movable plate is determined by the position of the distributing rod. Because the push plate mechanism is in an inclined arrangement state, in the process of one-time upward movement of the three layers of movable plates, namely when the first-stage movable plate, the second-stage movable plate and the third-stage movable plate reach the highest point, the cylindrical magnetic rod on the first-stage movable plate can automatically roll to the top surface of the first-stage fixed plate (blocked by the second-stage movable plate) under the action of gravity, the cylindrical magnetic rod on the second-stage movable plate can automatically roll to the top surface of the second-stage fixed plate (blocked by the third-stage movable plate) under the action of gravity, and the cylindrical magnetic rod on the third-stage movable plate can automatically roll to the inclined surface of the third-stage fixed plate under the action of gravity. By parity of reasoning, after one circulation is completed through three times of movement of the three layers of movable plates, the rod is gradually increased to the inclined surface of the three layers of fixed plates and is blocked by the rotating roller. The cylindrical magnetic bar is in the photographing position at the moment through the CCD camera fixed above. The motor drive changes the roller and is in the rotation state, changes the roller drive down, and the cylinder bar magnet rolls between inclined plane and commentaries on classics roller, and the CCD camera directly over the cylinder bar magnet simultaneously shoots the magnetic pillar in succession, accomplishes the image acquisition of whole face of cylinder, transmits to visual inspection system to carry out defect analysis to the photo and judge. After the surface of the cylindrical magnetic rod is detected, the rotating roller moves the cylinder to move, the moving plate is driven to move backwards along the guide rail, and meanwhile, the rotating roller support drives the rotating roller to move backwards and is separated from the three-stage fixed plate, so that the detected magnetic column is discharged on the qualified product guide plate. According to the data of the visual detection system, the material distribution turning plate cylinder at the corresponding position is controlled to act to control the opening and closing of the material distribution turning plate, so that unqualified products fall to the unqualified product guide plate through the corresponding material leakage opening, and the classified cylindrical magnetic rods enter the respective qualified product feed box and unqualified product feed box under the action of gravity, and the classification of the qualified products and the unqualified products is completed. And then, the roller moving cylinder drives the roller to return to the detection position again, and the next detection work cycle is carried out.
Further preferably, the first driving device, the second driving device and the turnover plate driving device adopt air cylinders, so that the device is convenient for factory application.
Further preferably, a light source is arranged below the CCD camera, which is helpful for clearly acquiring the image of the cylindrical surface.
Further preferably, a vibrator used for providing vibration for the feeding inclined plate is arranged in the bottom box body, and feeding operation of the bars is facilitated.
Preferably, the first-stage movable plate, the second-stage movable plate and the third-stage movable plate have the same thickness, and are larger than the radius of the cylindrical bar stock and smaller than the diameter of the cylindrical bar stock. The first-stage fixed plate, the second-stage fixed plate and the third-stage fixed plate are the same in thickness, and are larger than the radius of the cylindrical bar stock and smaller than the diameter of the cylindrical bar stock. Like this, can only promote one row of rod once, guarantee the orderly promotion of rod.
Compared with the original manual detection, the invention realizes the full-automatic operation of the detection, and the accuracy and the efficiency of the detection are greatly higher than those of the manual detection.
The invention has reasonable design, realizes the detection of the surface defects of the product by the cylindrical bar in an automatic mode, does not need manual intervention, replaces manual work, improves the reliability and efficiency of detection, and is suitable for large-scale production of magnetic material enterprises.
Drawings
FIG. 1 is a schematic sectional top view of the detecting apparatus according to the present invention.
Fig. 2 is a schematic cross-sectional front view of the detecting device of the present invention.
Fig. 3 shows a rear view of the detection device according to the invention.
FIG. 4 is a schematic sectional bottom view of the detecting device of the present invention.
Fig. 5 shows an overall schematic view of the detection device according to the invention.
In the figure: 1-a bottom box body, 2-a feeding inclined plate, 3-a material distributing rod, 4-a vibrator, 5-a first driving device, 6-a first-stage movable plate, 7-a second-stage movable plate, 8-a third-stage movable plate, 9-a first-stage fixed plate, 10-a second-stage fixed plate, 11-a third-stage fixed plate, 12-a fixed plate, 13-a guide rail, 14-a movable plate, 15-a roller bracket, 16-a roller, 17-a fixed seat, 18-a second driving device, 19-a motor, 20-a transmission mechanism, 21-a qualified product guide plate, 22-a unqualified product guide plate, 23-a qualified product bin, 24-a unqualified product bin, 25-a material leakage port, 26-a material distributing turning plate, 27-a turning plate driving device, 28-an outer frame and 29-a CCD camera, 30-light source, 31-light source seat and 32-cylindrical bar.
Detailed Description
The following detailed description of specific embodiments of the invention refers to the accompanying drawings.
A detection device for cylindrical surface defects comprises a combination of a multistage push plate feeding mechanism and a cylindrical bar rotating mechanism to realize detection of the outer surface of a magnetic bar, a plate turning mode adopted by a bar sorting mechanism and the like.
As shown in fig. 1, the device comprises a bottom box 1, wherein a feeding inclined plate 2 is arranged on the surface of the bottom box 1 in an inward inclined manner, and a vibrator 4 for providing vibration to the feeding inclined plate 2 is arranged in the bottom box 1. The feed end of feeding swash plate 2 is along evenly being provided with one row of branch material pole 3, constitutes the branch silo between the adjacent branch material pole 3, and the distance between the branch material pole is used for holding a horizontal cylindrical bar 32, and the purpose is to the bar of unordered stacking direction and arrangement before promoting.
As shown in fig. 1, 2 and 4, a push plate mechanism is installed in the bottom box 1, and the push plate mechanism comprises a first driving device 5, three layers of movable plates and three layers of fixed plates. The first driving device 5 adopts a movable plate lifting cylinder, and the driving end of the first driving device 5 is provided with three layers of movable plates in parallel, namely a primary movable plate 6, a secondary movable plate 7 and a tertiary movable plate 8. Three layers of fixed plates, namely a first-stage fixed plate 9, a second-stage fixed plate 10 and a third-stage fixed plate 11 are fixedly arranged in parallel in the middle of the bottom box body 1, and the top heights of the three layers of fixed plates are sequentially increased; specifically, two sides of the fixed plate can be inserted into the side wall of the bottom box body 1. Three-layer movable plate and three-layer decide board and carry out crisscross cartridge back movable plate and decide between the board for clearance fit (distance is 0~1mm between movable plate and the fixed board), and be clearance fit (distance is 0~1 mm) between the one-level movable plate 6 and the feed end edge of feeding swash plate 2. When the first driving device 5 drives the three layers of movable plates to be at the lowest stroke, the first-stage movable plate 6 descends to a position lower than the feeding end edge of the feeding inclined plate 2, the second-stage movable plate 7 descends to a position lower than the upper end of the first-stage fixed plate 9, and the third-stage movable plate 8 descends to the upper end of the second-stage fixed plate 10; the specific height of the lower portion is not particularly limited as long as the lower portion is lower, and may be selected to be lower than about 0.5cm, for example. When the first driving device 5 drives the three layers of movable plates to be at the highest stroke, the first-stage movable plate 6 rises to be higher than the upper end of the first-stage fixed plate 9, the second-stage movable plate 7 rises to be higher than the upper end of the second-stage fixed plate 10, and the third-stage movable plate 8 rises to be higher than the upper end of the third-stage fixed plate 11; similarly, the specific height is not specifically required, and may be higher than that, for example, about 0.5 cm. The upper end face of the third-level fixed plate 11 is designed to be an inclined face, and the rotation and falling of the bar materials are facilitated.
As shown in fig. 1, 3 and 5, a fixed plate 12 is transversely and fixedly arranged at the rear part of the bottom box 1, a transversely arranged moving plate 14 is slidably mounted on guide rails 13 at two sides of the fixed plate 12, rotating roller brackets 15 are respectively mounted at two sides of the front end of the moving plate 14, rotating rollers 16 can be mounted between the rotating roller brackets 15 at two sides through bearings, and the rotating rollers 16 are in clearance fit with the lower end edges of the inclined surfaces of the third-stage fixed plate 11. A second driving device 18 is installed in the middle of the fixed plate 12 through a fixed seat 17, a roller moving cylinder is adopted, and the driving end of the second driving device 18 is connected with the middle of the moving plate 14. The motor 19 is installed at one end of the moving plate 14, the motor 19 drives the rotating roller 16 to rotate through the transmission mechanism 20, and the rotation can be realized by adopting the prior art, for example, one end of the rotating roller 16 is fixedly connected with the driven wheel, the output end of the motor 19 is connected with the driving wheel, the driving wheel and the driven wheel are connected through the transmission mechanism, and the transmission mechanism is in the prior design of belt transmission or chain transmission and the like.
As shown in fig. 1, 3 and 5, the bottom box 1 is provided with a qualified product guide plate 21 which is obliquely arranged, the feed end of the qualified product guide plate 21 is connected with the lower end edge of the inclined surface of the third-stage fixed plate 11, and the discharge end of the qualified product guide plate 21 is connected with a qualified product bin 23. The qualified product guide plate 21 is provided with a row of material leaking ports 25, and the positions of the material leaking ports 25 correspond to the distribution positions of the cylindrical bars 32. An unqualified product guide plate 22 is obliquely arranged below the qualified product guide plate 21, and the discharge end of the unqualified product guide plate 22 is connected with an unqualified product feed box 24. The material-separating turning plates 26 are respectively hinged in all the material-leaking ports 25. The back of the third-level fixed plate 11 is provided with a plurality of turning plate driving devices 27, and a material-separating turning plate cylinder is adopted. The driving end of each flap driving device 27 is connected with the corresponding material dividing flap 26 so as to enable the flap to be positioned in the corresponding material leakage opening 25 or to be connected with the unqualified product guide plate 22. The feeding end of the unqualified product material guide plate 22 can also be correspondingly provided with a matched slot for well connecting the material-dividing turning plate 26 with the unqualified product material guide plate 22.
As shown in fig. 3 and 5, the bottom casing 1 is provided with an outer frame 28, one or more CCD cameras 29 are mounted on the outer frame 28, and the imaging window of the CCD camera 29 is positioned above the inclined surface of the third-stage fixed plate 11. The CCD camera 29 is provided with a light source 30 at the lower part, the light source 30 is arranged on a light source seat 31, and the light source seat 31 is connected with the outer frame 28 in a hoisting way.
During specific work, the cylindrical magnetic rod is randomly placed on the feeding inclined plate 2, the feeding inclined plate 2 is inclined and is designed to automatically feed the rod materials, the vibrator 4 is installed, and the cylindrical magnetic rod is arranged on the inclined surface of the feeding inclined plate 2 and moves towards the push plate mechanism under the action of the vibrator 4. Under the action of the material distributing rod 3, the cylindrical magnetic rods are randomly arranged on the primary movable plate 6 of the push plate mechanism and move upwards along with the primary movable plate. The thicknesses of the primary movable plate 6, the secondary movable plate 7 and the tertiary movable plate 8 are the same and equal to the diameter of the cylindrical bar 32. Similarly, the thicknesses of the first-stage fixed plate 9, the second-stage fixed plate 10 and the third-stage fixed plate 11 are the same and are equal to the diameter of the cylindrical bar 32. Only one bar can be transversely arranged at a certain position on the primary movable plate 6, and the arrangement of the bars on the primary movable plate is determined by the position of the distributing bar.
Because the push plate mechanism is in an inclined arrangement state, in the process of one-time upward movement of the three layers of movable plates, namely the first-stage movable plate 6, the second-stage movable plate 7 and the third-stage movable plate 8 reach the highest point, the cylindrical magnetic rod on the first-stage movable plate 6 can automatically roll to the top surface of the first-stage fixed plate 9 (blocked by the second-stage movable plate 7) under the action of gravity, the cylindrical magnetic rod on the second-stage movable plate 7 can automatically roll to the top surface of the second-stage fixed plate 10 (blocked by the third-stage movable plate 8) under the action of gravity, and the cylindrical magnetic rod on the third-stage movable plate 8 can automatically roll to the inclined surface of the third-stage fixed plate 11 under the action of gravity. By analogy, after each movement of the three layers of movable plates, the rods are increased by one step. Namely, lifting is completed once after three movements, namely, the bar moves from the top surface of the first-stage movable plate to the top surface of the first-stage fixed plate after the first movement, then the bar is continuously lifted by the first-stage movable plate after the first-stage movable plate returns to the original position, and at the moment, the bar positioned on the top surface of the first-stage fixed plate automatically rolls to the second-stage movable plate; after the second movement, the bar positioned on the second-stage movable plate is lifted to the top surface of the second-stage fixed plate, and then the bar positioned on the top surface of the second-stage fixed plate automatically rolls to the third-stage movable plate after the bar is restored to the original position; after the third movement, the bar positioned on the third-stage movable plate is lifted to the top surface of the third-stage fixed plate; so far, the rod is lifted to the highest position by the feeding inclined plate 2 for detection, and the rod is circularly reciprocated in such a way to complete the lifting motion.
The magnetic rod rolls on the inclined surface of the third-stage fixed plate 11 and is stopped by the rotating roller 16. With the CCD camera 29 fixed above, the cylindrical bar magnet is now in the photographing position. The motor 19 drives the roller 16 to be in a rotating state, the cylindrical magnetic rod rolls between the inclined plane and the roller under the driving of the roller 16, and meanwhile, a CCD camera right above the cylindrical magnetic rod continuously shoots the magnetic column, so that the image acquisition of the whole cylindrical surface is completed, the image is transmitted to a visual detection system, and the defect analysis and judgment are carried out on the picture. After the surface of the cylindrical magnetic rod is detected, the roller moving cylinder moves to drive the moving plate 14 to move backwards along the guide rail 13, and meanwhile, the roller bracket 15 drives the roller 16 to move backwards and separate from the three-stage fixed plate, so that the detected magnetic column is dropped on the qualified product guide plate 21. According to the detection data of the vision system, the material-dividing turning plate cylinder at the corresponding position is controlled to act to control the opening and closing of the material-dividing turning plate, so that unqualified products fall to the unqualified product material guide plate 22 through the corresponding material leakage opening 25, and the classified cylindrical magnetic rods enter the qualified product material box 23 and the unqualified product material box 24 respectively under the action of gravity, thereby completing the classification of the qualified products and the unqualified products. And then, the roller moving cylinder drives the roller to return to the detection position again, and the next detection work cycle is carried out. In specific implementation, the material leaking port 25 is located below the roller 16 and is as close to the material feeding connection end of the material guide plate 21 as possible, so that unqualified products can smoothly pass through the material leaking port.
Finally, it should be noted that the above embodiments are only for illustrating the technical solutions of the present invention and not for limiting, and although the detailed description is made with reference to the embodiments of the present invention, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, which shall be covered by the claims of the present invention.

Claims (5)

1. An apparatus for detecting defects on a cylindrical surface, characterized by: the feeding device comprises a bottom box body (1), wherein a feeding inclined plate (2) is obliquely arranged inwards on the surface of the bottom box body (1), a row of distributing rods (3) are uniformly arranged at the feeding end edge of the feeding inclined plate (2), and a transverse cylindrical bar (32) is arranged between every two adjacent distributing rods (3); a first driving device (5) is installed in the bottom box body (1), three layers of movable plates are arranged in parallel at the driving end of the first driving device (5), and the movable plates are respectively a primary movable plate (6), a secondary movable plate (7) and a tertiary movable plate (8); three layers of fixed plates are fixedly arranged in parallel in the middle of the bottom box body (1), and are respectively a first-stage fixed plate (9), a second-stage fixed plate (10) and a third-stage fixed plate (11), and the heights of the fixed plates are sequentially increased; the three layers of movable plates and the three layers of fixed plates are inserted in a staggered mode at the same inclination angle, the movable plates and the fixed plates are in clearance fit, and the first-stage movable plate (6) is in clearance fit with the feeding end edge of the feeding inclined plate (2); when the first driving device (5) is in the lowest stroke, the primary movable plate (6) descends to a position lower than the feeding end edge of the feeding inclined plate (2), the secondary movable plate (7) descends to a position lower than the upper end of the primary fixed plate (9), and the tertiary movable plate (8) descends to the upper end of the secondary fixed plate (10); when the first driving device (5) is in the highest stroke, the first-stage movable plate (6) rises to be higher than the upper end of the first-stage fixed plate (9), the second-stage movable plate (7) rises to be higher than the upper end of the second-stage fixed plate (10), and the third-stage movable plate (8) rises to be higher than the upper end of the third-stage fixed plate (11); the upper end surface of the third-stage fixed plate (11) is an inclined surface;
a fixed plate (12) is transversely and fixedly arranged at the rear part of the bottom box body (1), a transversely arranged moving plate (14) is slidably arranged on guide rails (13) at two sides of the fixed plate (12), rotating roller brackets (15) are respectively arranged at two sides of the front end of the moving plate (14), a rotating roller (16) is arranged between the rotating roller brackets (15) at two sides, and the rotating roller (16) is in clearance fit with the lower end edge of the inclined surface of the third-stage fixed plate (11); a second driving device (18) is arranged in the middle of the fixed plate (12) through a fixed seat (17), and the driving end of the second driving device (18) is connected with the middle of the movable plate (14); a motor (19) is installed at one end of the moving plate (14), and the motor (19) drives the rotating roller (16) to rotate through a transmission mechanism (20);
the bottom box body (1) is provided with a qualified product guide plate (21) which is obliquely arranged, the feed end of the qualified product guide plate (21) is connected with the lower end edge of the inclined surface of the third-stage fixed plate (11), and the discharge end of the qualified product guide plate (21) is connected with a qualified product bin (23); a row of material leakage openings (25) are formed in the qualified product guide plate (21), and the positions of the material leakage openings (25) correspond to the distribution positions of the cylindrical bars (32); an unqualified product guide plate (22) is obliquely arranged below the qualified product guide plate (21), and the discharge end of the unqualified product guide plate (22) is connected with an unqualified product bin (24); a material distributing turning plate (26) is respectively hinged in all the material leaking ports (25); a plurality of turning plate driving devices (27) are arranged on the back surface of the third-level fixed plate (11), and the driving end of each turning plate driving device (27) is connected with a corresponding material distribution turning plate (26) to enable the turning plate driving device to be positioned in a corresponding material leakage port (25) or to be connected with an unqualified product material guide plate (22);
an outer frame (28) is arranged on the bottom box body (1), one or more CCD cameras (29) are arranged on the outer frame (28), and shooting windows of the CCD cameras (29) are positioned above the inclined plane of the three-level fixed plate (11);
and a vibrator (4) used for providing vibration for the feeding inclined plate (2) is arranged in the bottom box body (1).
2. An apparatus for detecting defects on cylindrical surfaces according to claim 1, wherein: the first driving device (5), the second driving device (18) and the turnover plate driving device (27) adopt air cylinders.
3. An apparatus for detecting defects on cylindrical surfaces according to claim 1 or 2, characterized in that: and a light source (30) is arranged below the CCD camera (29).
4. A device for detecting defects on cylindrical surfaces according to claim 3, characterized in that: the thicknesses of the primary movable plate (6), the secondary movable plate (7) and the tertiary movable plate (8) are the same.
5. An apparatus for detecting defects on a cylindrical surface according to claim 4, wherein: the thicknesses of the first-stage fixed plate (9), the second-stage fixed plate (10) and the third-stage fixed plate (11) are the same.
CN202210500111.3A 2022-05-10 2022-05-10 Detection equipment for cylindrical surface defects Active CN114589124B (en)

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