Rod-shaped object surface defect detection device and method based on machine vision

Abstract

The invention relates to the technical field of rod-shaped object detection, and discloses a rod-shaped object surface defect detection device and method based on machine vision, and the device comprises a base, the top of the base is fixedly connected with a support, the top of the support is fixedly connected with a scanner, and before use, the scanner and a power supply of a motor are switched on; at the moment, a motor drives a conveying belt to rotate through a driving column, the conveying belt drives a plurality of steering columns to move through a fixing block, a plurality of rod-shaped objects located between the steering columns move synchronously at the moment, gears are driven to make contact with toothed bars along with conveying of the conveying belt, and the gears rotate during moving; the gear drives the steering column to rotate synchronously through the rotating rod, at the moment, the rod-shaped object is affected by rotation of the steering column and rotates synchronously, the rod-shaped object can rotate when entering a scanning area of the scanner, it is guaranteed that the shady face of the rod-shaped object can face the scanner, and the recognition efficiency of the device is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of rod-shaped object detection equipment, and in particular to a rod-shaped object surface defect detection device and method based on machine vision. Background Art

[0002] With the rapid development of science and technology today, automated production has greatly improved the production efficiency of products. Defects such as pits or burrs on the surface of rod-shaped objects limit the application of rods, so defects have become the detection indicators of rod-shaped objects.

[0003] Among them, due to the fact that most rod-shaped objects are cylindrical, when the equipment is transported to the scanning area, one end of the rod-shaped object is always on the backlight side, which makes the area unable to be scanned and identified, affecting the detection accuracy of the equipment. To solve the above problems, the following solutions are proposed. Summary of the invention

[0004] In order to solve the above technical problems, the present invention provides a rod-shaped object surface defect detection device based on machine vision, comprising a base, a bracket fixedly connected to the top of the base, a scanner fixedly connected to the top of the bracket, a fixing frame fixedly connected to the top of the base, and a cleaning component fixedly connected to the inner wall of the base;

[0005] The mounting mechanism includes two driving columns rotatably connected to the inner wall of the fixing frame, the outer walls of the two driving columns are sleeved with a conveyor belt, the outer wall of the conveyor belt is fixedly connected to a plurality of fixing blocks, and the end of the fixing block away from the conveyor belt is fixedly connected to the mounting belt;

[0006] The steering mechanism includes a rotating rod rotatably connected to the inner walls of several fixed blocks, a steering column fixedly connected to the outer wall of the rotating rod, a gear fixedly connected to the outer wall of the rotating rod, a motor fixedly connected to the top of the base, a gear rod fixedly connected to the side wall of the fixed frame, a plurality of receiving grooves are opened on the top of the mounting belt, a correction component is slidably connected to the inner walls of the plurality of receiving grooves, a stabilizing component is fixedly connected to the top of the mounting belt, a rod-shaped object is placed on the top of the steering column, and in view of the problem that the instrument is difficult to scan the back of the cylinder, a steering column and a gear rod are arranged inside the device. Before use, the base is installed at the desired position, and the rod-shaped object to be detected is placed At the top of the conveyor belt, the power supply of the scanner and the motor is then turned on. At this time, the motor drives the conveyor belt to rotate through the driving column, and the conveyor belt drives several steering columns to move through the fixed block. At this time, the multiple rod-shaped objects between the steering columns will move synchronously. As the conveyor belt transmits, the gears will be driven to contact the gear rods. The gears will rotate when moving, and the gears will drive the steering columns to rotate synchronously through the rotating rods. At this time, the rod-shaped objects are affected by the rotation of the steering columns and will rotate synchronously, so that the rod-shaped objects can rotate when entering the scanning area of ​​the scanner. Through the application of the above components, it is ensured that the backlight surface of the rod-shaped objects can also face the scanner, thereby improving the recognition efficiency of the equipment.

[0007] Preferably, the correction assembly includes a slide rail fixedly connected to the inner wall of the accommodating groove, a pushing gear rod is slidably connected to the inner wall of the slide rail, an inclined panel is fixedly connected to the side wall of the pushing gear rod, and four rollers are rotatably connected to the inner wall of the inclined panel.

[0008] Preferably, the correction component also includes a pulling spring fixedly connected to the bottom of the inclined plate, and the end of the pulling spring away from the inclined plate is fixedly connected to the top of the conveyor belt, and the side wall of the gear is meshed with the side wall of the pushing gear rod. By utilizing the characteristic that the above-mentioned gear rod forces the gear to rotate, a correction component is arranged inside the equipment, and the rotation of the gear will force the pushing gear rod to move upward along the inner wall of the slide rail, and the slide rail drives the roller to move upward through the inclined plate, forcing the roller to contact the side wall of the rod-shaped object, wherein the two ends of the rod-shaped object are affected by the inclined surface of the inclined plate, and when the inclined plate moves upward, the rod-shaped object is squeezed and pushed to move toward the center of the steering column, presenting a Figure 5 In the state shown, the correction component can correct the center position of the device before the rod-shaped object enters the scanning area, thereby preventing the position of the rod-shaped object from deviating and affecting the scanning results of the scanner.

[0009] Preferably, the stabilizing assembly includes a fixed bracket fixedly connected to the top of the mounting belt, the inner wall of the fixed bracket is fixedly connected to a hydraulic box, the bottom of the hydraulic box is connected through a telescopic tube 1, and the side wall of the hydraulic box is connected through a telescopic tube 2.

[0010] Preferably, the stabilizing component also includes a plurality of balls rotatably connected to one end of the telescopic tube 2 away from the hydraulic box. The end of the telescopic tube 1 away from the hydraulic box is fixedly connected to the top of the pushing gear rod. By utilizing the above-mentioned feature of pushing the gear rod upward, a stabilizing component is arranged inside the equipment. When the pushing gear rod moves upward, the pushing gear rod will squeeze the telescopic tube 1, forcing the liquid inside the telescopic tube 1 to be transmitted to the telescopic tube 2 through the hydraulic box, forcing the telescopic tube 2 to extend. Through the application of the above-mentioned component, the phenomenon of the rod-shaped object being stuck in the outer wall of the roller when the inclined plate moves upward is effectively avoided, presenting a Figure 7 In the state shown, the extended telescopic tube 2 will force the ball to contact the side wall of the rod-shaped object, pushing the rod-shaped object to move toward the center of the steering column, thereby preventing the scanner's rays from being offset due to the tilt of the rod-shaped object's surface, thereby affecting the detection effect.

[0011] Preferably, the cleaning assembly comprises a fixed block fixedly connected to the inner wall of the bracket, a driving rod is rotatably connected to the inner wall of the fixed block, and a fan blade is fixedly connected to the side wall of the driving rod.

[0012] Preferably, the cleaning component also includes cleaning blades fixedly connected to the side walls of the driving rod, a driving disk is fixedly connected to the side walls of the driving rod, a belt is sleeved on the side walls of the driving disk, and the end of the belt away from the driving disk is rotatably connected to the side walls of the driving column. Utilizing the characteristic of the above-mentioned rod-shaped object to generate self-rotation, a cleaning component is arranged inside the device. When the transmission belt rotates to force the driving column away from the motor to rotate, the driving column drives the driving disk to rotate synchronously through the belt, and the driving disk drives the driving rod and the cleaning blades to rotate synchronously. At this time, the rod-shaped object is affected by the bottom steering column to generate self-rotation, and the rotation of the cleaning blades will clean the entire outer wall of the rod-shaped object. Through the application of the above-mentioned components, dust and other fine particles can be prevented from adhering to the outer wall of the rod-shaped object, which would affect the recognition efficiency of the scanner.

[0013] A method for detecting surface defects of a rod-shaped object based on machine vision comprises the following steps:

[0014] S1: Before use, install the base at the desired location, place the rod-shaped object to be detected on the top of the conveyor belt, and then turn on the power of the scanner and motor;

[0015] S2: The motor drives the transmission belt to rotate through the driving column, and the transmission belt drives several steering columns to move through the fixed block. At this time, multiple rod-shaped objects between the steering columns will move synchronously;

[0016] S3: As the transmission belt is transmitted, the gear will be driven to contact the gear rod. The gear will rotate when it moves. The gear will drive the steering column to rotate synchronously through the rotating rod. At this time, the rod-shaped object will be affected by the rotation of the steering column and will rotate synchronously.

[0017] The present invention has the following beneficial effects:

[0018] (1) In order to solve the problem that the instrument has difficulty in scanning the back of a cylinder, the present invention provides a steering column and a gear rod inside the device. Before use, the base is installed at the desired position, and the rod-shaped object to be detected is placed on the top of the conveyor belt. Then, the scanner and the motor are powered on. At this time, the motor drives the conveyor belt to rotate through the driving column, and the conveyor belt drives several steering columns to move through the fixed block. At this time, the multiple rod-shaped objects between the steering columns will move synchronously. As the conveyor belt transmits, the gear will contact the gear rod. The gear will rotate when moving. The gear will drive the steering column to rotate synchronously through the rotating rod. At this time, the rod-shaped object will be affected by the rotation of the steering column and will rotate synchronously, so that the rod-shaped object can rotate when entering the scanning area of ​​the scanner. Through the application of the above components, it is ensured that the backlight surface of the rod-shaped object can also face the scanner, thereby improving the recognition efficiency of the device.

[0019] (2) The present invention utilizes the characteristic of the above-mentioned rod-shaped object to generate self-rotation, and a cleaning component is arranged inside the device. When the transmission belt rotates and forces the driving column away from the motor to rotate, the driving column drives the driving disk to rotate synchronously through the belt, and the driving disk drives the driving rod and the cleaning blades to rotate synchronously. At this time, the rod-shaped object is affected by the bottom steering column to generate self-rotation, and the rotation of the cleaning blades will clean the entire outer wall of the rod-shaped object. Through the application of the above-mentioned components, it is possible to prevent fine particles such as dust from adhering to the outer wall of the rod-shaped object and affecting the recognition efficiency of the scanner.

[0020] (3) The present invention utilizes the characteristic that the gear rod forces the gear to rotate. A correction component is arranged inside the device. The rotation of the gear will force the gear rod to move upward along the inner wall of the slide rail. The slide rail drives the roller to move upward through the inclined plate, forcing the roller to contact the side wall of the rod-shaped object. The two ends of the rod-shaped object are restricted by the inclined surface of the inclined plate. When the inclined plate moves upward, the rod-shaped object is squeezed and pushed to move toward the center of the steering column, presenting a Figure 5 In the state shown, the correction component can correct the center position of the device before the rod-shaped object enters the scanning area, thereby preventing the position of the rod-shaped object from deviating and affecting the scanning results of the scanner.

[0021] (4) The present invention utilizes the above-mentioned feature of pushing the gear rod upward, and a stabilizing component is arranged inside the device. When the gear rod is pushed upward, the gear rod will squeeze the telescopic tube 1, forcing the liquid inside the telescopic tube 1 to be transmitted to the telescopic tube 2 through the hydraulic box, forcing the telescopic tube 2 to extend. Through the application of the above-mentioned component, the phenomenon of the rod-shaped object being stuck on the outer wall of the roller when the inclined plate moves upward is effectively avoided, presenting the following situation: Figure 7 In the state shown, the extended telescopic tube 2 will force the ball to contact the side wall of the rod-shaped object, pushing the rod-shaped object to move toward the center of the steering column, thereby preventing the scanner's rays from being offset due to the tilt of the rod-shaped object's surface, thereby affecting the detection effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for describing the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0023] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0024] Figure 2 It is an exploded schematic diagram of the installation mechanism assembly of the present invention;

[0025] Figure 3 For the present invention Figure 2 A is an enlarged schematic diagram;

[0026] Figure 4 It is a cross-sectional schematic diagram of the steering mechanism of the present invention;

[0027] Figure 5 For the present invention Figure 4 A magnified schematic diagram of B;

[0028] Figure 6 It is a cross-sectional schematic diagram of a stabilizing assembly of the present invention;

[0029] Figure 7 For the present invention Figure 6 A magnified schematic diagram of middle C;

[0030] Figure 8 It is a cross-sectional schematic diagram of the cleaning component of the present invention;

[0031] Fig. 9 It is a schematic diagram of the working process of the present invention.

[0032] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0033] In the figure: 1. base; 11. bracket; 12. scanner; 13. fixed frame; 2. mounting mechanism; 21. drive column; 22. transmission belt; 23. fixed block; 24. mounting belt; 25. rod-shaped object; 3. steering mechanism; 31. rotating rod; 32. steering column; 33. gear; 34. motor; 35. gear rod; 36. receiving groove; 4. correction component; 41. slide rail; 42. push gear rod; 43. inclined plate; 44. roller; 45. pulling spring; 5. stabilizing component; 51. fixed bracket; 52. hydraulic box; 53. telescopic tube 1; 54. telescopic tube 2; 55. ball; 6. cleaning component; 61. fixed block; 62. drive rod; 63. fan blade; 64. cleaning fan blade; 65. drive disk; 66. belt. DETAILED DESCRIPTION

[0034] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0035] For example, see Figure 1 - Figure 5 The present invention is a rod-shaped object surface defect detection device based on machine vision, comprising a base 1, a bracket 11 is fixedly connected to the top of the base 1, a scanner 12 is fixedly connected to the top of the bracket 11, a fixing frame 13 is fixedly connected to the top of the base 1, and a cleaning component 6 is fixedly connected to the inner wall of the base 1;

[0036] The mounting mechanism 2 includes two driving columns 21 rotatably connected to the inner wall of the fixing frame 13, the outer walls of the two driving columns 21 are sleeved with a transmission belt 22, the outer wall of the transmission belt 22 is fixedly connected to a plurality of fixing blocks 23, and one end of the fixing block 23 away from the transmission belt 22 is fixedly connected to a mounting belt 24;

[0037] The steering mechanism 3 includes a rotating rod 31 rotatably connected to the inner walls of several fixed blocks 23, a steering column 32 is fixedly connected to the outer wall of the rotating rod 31, a gear 33 is fixedly connected to the outer wall of the rotating rod 31, a motor 34 is fixedly connected to the top of the base 1, a gear rod 35 is fixedly connected to the side wall of the fixed frame 13, a plurality of receiving grooves 36 are opened on the top of the mounting belt 24, a correction component 4 is slidably connected to the inner wall of the plurality of receiving grooves 36, a stabilizing component 5 is fixedly connected to the top of the mounting belt 24, a rod-shaped object 25 is placed on the top of the steering column 32, and in view of the problem that the instrument is difficult to scan the back of the cylinder, a steering column 32 and a gear rod 35 are arranged inside the device. Before use, the base 1 is installed at the desired position, and the rod-shaped object 25 to be detected is placed on the transmission The top of the belt 22 is then connected to the power supply of the scanner 12 and the motor 34. At this time, the motor 34 drives the transmission belt 22 to rotate through the driving column 21, and the transmission belt 22 drives several steering columns 32 to move through the fixed block 23. At this time, the multiple rod-shaped objects 25 between the steering columns 32 will move synchronously. With the transmission of the transmission belt 22, the gear 33 will be driven to contact the gear rod 35. The gear 33 rotates when moving, and the gear 33 drives the steering column 32 to rotate synchronously through the rotating rod 31. At this time, the rod-shaped object 25 is affected by the rotation of the steering column 32 and will rotate synchronously, so that the rod-shaped object 25 can rotate when entering the scanning area of ​​the scanner 12. Through the application of the above-mentioned components, it is ensured that the backlight surface of the rod-shaped object 25 can also face the scanner 12, thereby improving the recognition efficiency of the equipment.

[0038] For example 2, please refer to Figure 6 - Fig. 9 The present invention is a surface defect detection device for a rod-shaped object based on machine vision. On the basis of the first embodiment, the correction component 4 includes a slide rail 41 fixedly connected to the inner wall of the accommodating groove 36, a pushing gear rod 42 is slidably connected to the inner wall of the slide rail 41, an inclined panel 43 is fixedly connected to the side wall of the pushing gear rod 42, and four rollers 44 are rotatably connected to the inner wall of the inclined panel 43.

[0039] The correction component 4 also includes a pulling spring 45 fixedly connected to the bottom of the inclined panel 43. The end of the pulling spring 45 away from the inclined panel 43 is fixedly connected to the top of the conveyor belt 22. The side wall of the gear 33 is meshed with the side wall of the pushing gear rod 42. The correction component 4 is arranged inside the device by utilizing the characteristic that the gear rod 35 forces the gear 33 to rotate. The rotation of the gear 33 will force the pushing gear rod 42 to move upward along the inner wall of the slide rail 41. The slide rail 41 drives the roller 44 to move upward through the inclined panel 43, forcing the roller 44 to contact the side wall of the rod-shaped object 25. The two ends of the rod-shaped object 25 are restricted by the influence of the inclined surface of the inclined panel 43. When the inclined panel 43 moves upward, the rod-shaped object 25 is squeezed and pushed to move toward the center of the steering column 32, presenting a state as shown in the figure. Figure 5 In the state shown, the correction component 4 can correct the center position of the device before the rod 25 enters the scanning area, thereby preventing the position of the rod 25 from deviating and affecting the scanning results of the scanner 12.

[0040] The stabilizing assembly 5 includes a fixing bracket 51 fixedly connected to the top of the mounting belt 24 , the inner wall of the fixing bracket 51 is fixedly connected to a hydraulic box 52 , the bottom of the hydraulic box 52 is connected to a telescopic tube 1 53 , and the side wall of the hydraulic box 52 is connected to a telescopic tube 2 54 .

[0041] The stabilizing assembly 5 also includes a plurality of balls 55 rotatably connected to one end of the telescopic tube 2 54 away from the hydraulic box 52. One end of the telescopic tube 1 53 away from the hydraulic box 52 is fixedly connected to the top of the pushing gear rod 42. By utilizing the above-mentioned feature of pushing the gear rod 42 upward, a stabilizing assembly 5 is arranged inside the device. When the pushing gear rod 42 moves upward, the pushing gear rod 42 squeezes the telescopic tube 1 53, forcing the liquid inside the telescopic tube 1 53 to be transmitted to the telescopic tube 2 54 through the hydraulic box 52, forcing the telescopic tube 2 54 to extend. By using the above-mentioned assembly, the phenomenon that the rod-shaped object 25 is stuck on the outer wall of the roller 44 when the inclined plate 43 moves upward is effectively avoided, presenting the following Figure 7 In the state shown, the extended telescopic tube 2 54 will force the ball 55 to contact the side wall of the rod 25, pushing the rod 25 to move toward the center of the steering column 32, thereby preventing the rod 25 from tilting on the surface, causing the rays of the scanner 12 to deviate and affecting the detection effect.

[0042] The cleaning assembly 6 includes a fixed block 61 fixedly connected to the inner wall of the bracket 11 , a driving rod 62 is rotatably connected to the inner wall of the fixed block 61 , and a fan blade 63 is fixedly connected to the side wall of the driving rod 62 .

[0043] The cleaning component 6 also includes a cleaning blade 64 fixedly connected to the side wall of the driving rod 62, a driving disk 65 fixedly connected to the side wall of the driving rod 62, a belt 66 sleeved on the side wall of the driving disk 65, and the end of the belt 66 away from the driving disk 65 is rotatably connected to the side wall of the driving column 21. By utilizing the characteristic of the above-mentioned rod-shaped object 25 to generate self-rotation, a cleaning component 6 is arranged inside the device. When the transmission belt 22 rotates to force the driving column 21 away from the motor 34 to rotate, the driving column 21 drives the driving disk 65 to rotate synchronously through the belt 66, and the driving disk 65 drives the driving rod 62 and the cleaning blade 64 to rotate synchronously. At this time, the rod-shaped object 25 is affected by the bottom steering column 32 to generate self-rotation, and the rotation of the cleaning blade 64 will clean the entire outer wall of the rod-shaped object 25. Through the application of the above-mentioned components, it is prevented that dust and other fine particles are attached to the outer wall of the rod-shaped object 25, which affects the recognition efficiency of the scanner 12.

[0044] The detection method of the detection device comprises the following steps:

[0045] S1: Before use, the base 1 is installed at the desired position, and the rod-shaped object 25 to be detected is placed on the top of the conveyor belt 22, and then the power of the scanner 12 and the motor 34 is turned on;

[0046] S2: The motor 34 drives the conveyor belt 22 to rotate through the driving column 21, and the conveyor belt 22 drives the steering columns 32 to move through the fixing block 23. At this time, the multiple rod-shaped objects 25 between the steering columns 32 will move synchronously;

[0047] S3: As the transmission belt 22 is transmitted, the gear 33 will be driven to contact the gear rod 35. The gear 33 will rotate when moving. The gear 33 will drive the steering column 32 to rotate synchronously through the rotating rod 31. At this time, the rod 25 will be affected by the rotation of the steering column 32 and will rotate synchronously.

[0048] A specific application of this embodiment is: before use, the base 1 is installed at the desired position, and the rod-shaped object 25 to be detected is placed on the top of the conveyor belt 22, and then the power supply of the scanner 12 and the motor 34 is turned on. At this time, the motor 34 drives the conveyor belt 22 to rotate through the driving column 21, and the conveyor belt 22 drives several steering columns 32 to move through the fixed block 23. At this time, the multiple rod-shaped objects 25 between the steering columns 32 will move synchronously, and the transmission of the conveyor belt 22 will drive the gear 33 to contact the gear rod 35. The gear 33 rotates when moving, and the gear 33 drives the steering column 32 to rotate synchronously through the rotating rod 31. At this time, the rod-shaped object 25 is affected by the rotation of the steering column 32 and will rotate synchronously, so that the rod-shaped object 25 can rotate when entering the scanning area of ​​the scanner 12. Through the application of the above components, it is ensured that the backlight surface of the rod-shaped object 25 can also face the scanner 12, thereby improving the recognition efficiency of the equipment.

[0049] Taking advantage of the self-rotation characteristic of the above-mentioned rod-shaped object 25, a cleaning component 6 is arranged inside the device. When the transmission belt 22 rotates and forces the driving column 21 away from the motor 34 to rotate, the driving column 21 drives the driving disk 65 to rotate synchronously through the belt 66, and the driving disk 65 drives the driving rod 62 and the cleaning blades 64 to rotate synchronously. At this time, the rod-shaped object 25 is affected by the bottom steering column 32 to produce self-rotation, and the rotation of the cleaning blades 64 will clean the entire outer wall of the rod-shaped object 25. Through the application of the above-mentioned components, it is possible to prevent dust and other fine particles from adhering to the outer wall of the rod-shaped object 25, which will affect the recognition efficiency of the scanner 12.

[0050] By utilizing the characteristic that the gear rod 35 forces the gear 33 to rotate, a correction component 4 is provided inside the device. The rotation of the gear 33 will force the gear rod 42 to move upward along the inner wall of the slide rail 41. The slide rail 41 drives the roller 44 to move upward through the inclined plate 43, forcing the roller 44 to contact the side wall of the rod 25. The two ends of the rod 25 are restricted by the influence of the inclined surface of the inclined plate 43. When the inclined plate 43 moves upward, the rod 25 is squeezed and pushed to move toward the center of the steering column 32, presenting a Figure 5 In the state shown, before the rod 25 enters the scanning area, the correction component 4 can correct the center position of the device to avoid deviation of the position of the rod 25 and affect the scanning results of the scanner 12. By utilizing the above-mentioned feature of pushing the gear rod 42 to move upward, a stabilizing component 5 is arranged inside the device. When the gear rod 42 is pushed to move upward, the gear rod 42 is pushed to squeeze the telescopic tube 1 53, forcing the liquid inside the telescopic tube 1 53 to be transmitted to the telescopic tube 2 54 through the hydraulic box 52, forcing the telescopic tube 2 54 to extend. Through the application of the above-mentioned components, it is effectively avoided that the rod 25 is stuck on the outer wall of the roller 44 when the inclined plate 43 moves upward, presenting as shown in the figure. Figure 7In the state shown, the extended telescopic tube 2 54 will force the ball 55 to contact the side wall of the rod 25, pushing the rod 25 to move toward the center of the steering column 32, thereby preventing the rod 25 from tilting on the surface, causing the rays of the scanner 12 to deviate and affecting the detection effect.

[0051] The preferred embodiments of the present invention disclosed above are only used to help illustrate the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A rod-shaped object surface defect detection device based on machine vision, comprising a base (1), a bracket (11) is fixedly connected to the top of the base (1), a scanner (12) is fixedly connected to the top of the bracket (11), a fixing frame (13) is fixedly connected to the top of the base (1), and a cleaning component (6) is fixedly connected to the inner wall of the base (1), characterized in that: Also includes: A mounting mechanism (2), the mounting mechanism (2) comprising two driving columns (21) rotatably connected to the inner wall of a fixing frame (13), a transmission belt (22) being sleeved on the outer wall of the two driving columns (21), a plurality of fixing blocks (23) being fixedly connected to the outer wall of the transmission belt (22), and a mounting belt (24) being fixedly connected to one end of the fixing block (23) away from the transmission belt (22); A steering mechanism (3), the steering mechanism (3) comprising a rotating rod (31) rotatably connected to the inner walls of a plurality of fixed blocks (23), a steering column (32) fixedly connected to the outer wall of the rotating rod (31), a gear (33) fixedly connected to the outer wall of the rotating rod (31), a motor (34) fixedly connected to the top of the base (1), a gear rod (35) fixedly connected to the side wall of the fixed frame (13), a plurality of receiving grooves (36) opened at the top of the mounting belt (24), a correction assembly (4) slidably connected to the inner walls of the plurality of receiving grooves (36), a stabilizing assembly (5) fixedly connected to the top of the mounting belt (24), and a rod-shaped object (25) placed on the top of the steering column (32).

2. The rod-shaped object surface defect detection device based on machine vision according to claim 1, characterized in that: The correction component (4) comprises a slide rail (41) fixedly connected to the inner wall of the accommodating groove (36); a pushing gear rod (42) is slidably connected to the inner wall of the slide rail (41); an inclined panel (43) is fixedly connected to the side wall of the pushing gear rod (42); and four rollers (44) are rotatably connected to the inner wall of the inclined panel (43).

3. The rod-shaped object surface defect detection device based on machine vision according to claim 2, characterized in that: The correction assembly (4) further comprises a pulling spring (45) fixedly connected to the bottom of the inclined plate (43), wherein one end of the pulling spring (45) away from the inclined plate (43) is fixedly connected to the top of the transmission belt (22), and the side wall of the gear (33) is meshingly connected to the side wall of the pushing gear rod (42).

4. The rod-shaped object surface defect detection device based on machine vision according to claim 3, characterized in that: The stabilizing assembly (5) comprises a fixing bracket (51) fixedly connected to the top of the mounting belt (24); the inner wall of the fixing bracket (51) is fixedly connected to a hydraulic box (52); the bottom of the hydraulic box (52) is connected to a telescopic tube 1 (53); and the side wall of the hydraulic box (52) is connected to a telescopic tube 2 (54).

5. The device for detecting surface defects of a rod-shaped object based on machine vision according to claim 4, characterized in that: The stabilizing assembly (5) further comprises a plurality of balls (55) rotatably connected to one end of the telescopic tube 2 (54) away from the hydraulic box (52), and one end of the telescopic tube 1 (53) away from the hydraulic box (52) is fixedly connected to the top of the pushing gear rod (42).

6. The rod-shaped object surface defect detection device based on machine vision according to claim 5, characterized in that: The cleaning assembly (6) comprises a fixed block (61) fixedly connected to the inner wall of the bracket (11); a driving rod (62) is rotatably connected to the inner wall of the fixed block (61); and a fan blade (63) is fixedly connected to the side wall of the driving rod (62).

7. The rod-shaped object surface defect detection device based on machine vision according to claim 6, characterized in that: The cleaning assembly (6) further comprises a cleaning blade (64) fixedly connected to the side wall of the driving rod (62); a driving disk (65) is fixedly connected to the side wall of the driving rod (62); a belt (66) is sleeved on the side wall of the driving disk (65); and one end of the belt (66) away from the driving disk (65) is rotatably connected to the side wall of the driving column (21).

8. A method for detecting surface defects of a rod-shaped object based on machine vision, using the device for detecting surface defects of a rod-shaped object based on machine vision as claimed in claim 7, characterized in that: The following steps are included: S1: Before use, the base (1) is installed at the desired position, and the rod-shaped object (25) to be detected is placed on the top of the conveyor belt (22), and then the power of the scanner (12) and the motor (34) is turned on; S2: The motor (34) drives the transmission belt (22) to rotate through the driving column (21), and the transmission belt (22) drives a plurality of steering columns (32) to move through the fixing block (23), and at this time, a plurality of rod-shaped objects (25) between the steering columns (32) will move synchronously; S3: As the transmission belt (22) is transmitted, the gear (33) is driven to contact the gear rod (35). The gear (33) rotates when it moves. The gear (33) drives the steering column (32) to rotate synchronously through the rotating rod (31). At this time, the rod (25) is affected by the rotation of the steering column (32) and will rotate synchronously.

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