CN117849069A - A bearing ring defect visual detection device - Google Patents

Abstract

The invention provides a bearing ring defect visual detection device which comprises a bottom plate, and a first image acquisition unit, a second image acquisition unit, a third image acquisition unit, a turnover unit, a fourth image acquisition unit and a screening unit which are sequentially arranged on the bottom plate; the third image acquisition unit comprises a third image acquisition module for acquiring an image of the outer ring surface of the bearing ring, a pressing rotation module for limiting and rotating the bearing ring and a third adjustment module; the overturning unit comprises a clamping module for clamping the bearing ring and an overturning module for rotating the clamping module; the screening unit comprises a lifting module for lifting and lowering the position of the bearing ring, and a pushing module for pushing the bearing ring away from the lifting module. The invention can perform all-aspect detection on the inner ring surface, the outer ring surface, the upper end surface and the lower end surface of the bearing ring, improves the detection efficiency of the bearing ring, and is better suitable for image acquisition and visual detection of various bearing rings.

Description

A bearing ring defect visual detection device

Technical Field

The invention relates to a visual inspection device, in particular to a bearing ring defect visual inspection device, and belongs to the technical field of visual inspection.

Background technique

Common bearings are mainly composed of balls, bearing rings and retaining frames. The bearing rings include a bearing inner ring with a raceway on the inner ring surface and a bearing outer ring with a raceway on the outer ring surface. They are in the shape of a hollow sleeve structure and mainly have four surfaces, namely the inner ring surface, the outer ring surface, the upper end face and the lower end face.

During the production process, the defects that may appear on the above-mentioned surfaces of the bearing rings include spots, rolling, peeling, abrasions, burning, corrosion, bumps, dents, indentations and cracks, etc. These defects will reduce the service life and stability of the bearing rings. Therefore, before the bearing products leave the factory, they must be strictly inspected for quality to eliminate defective products. Traditional bearing ring inspection relies on manual methods, but due to subjective judgment and interference factors such as eye fatigue in manual inspection, the quality inspection process is not stable. Therefore, the existing technology uses image acquisition devices to inspect the bearing rings.

The Chinese invention patent with application number 2020114737466 discloses a bearing ring surface defect detection device based on visual inspection. Through the coordinated use of a cylinder, a No. 1 push rod, a No. 1 push plate, a circular runout detector, a motor, a rotating shaft and a rectangular block, the circular runout value of the bearing ring surface is obtained, and the tolerance marked on the drawing of the production bearing ring is used to determine whether the bearing ring surface has defects. However, the bearing ring surface defect detection device cannot perform comprehensive inspections on the inner ring surface, outer ring surface, upper end face and lower end face of the bearing ring, which affects the inspection efficiency, and has low applicability to image acquisition of different types of bearing rings.

Summary of the invention

Based on the above background, the purpose of the present invention is to provide a bearing ring defect visual inspection device that can perform comprehensive inspection on multiple surfaces of a bearing ring, improve the bearing ring inspection efficiency, and better adapt to image acquisition and visual inspection of various bearing rings.

In order to achieve the above-mentioned invention object, the present invention provides the following technical solutions:

A bearing ring defect visual detection device comprises a base plate and a first image acquisition unit, a second image acquisition unit, a third image acquisition unit, a flip unit, a fourth image acquisition unit and a screening unit which are sequentially arranged on the base plate; the first image acquisition unit comprises a first image acquisition module for acquiring an upper end surface image of a bearing ring, and a first adjustment module for adjusting a relative distance between the first image acquisition module and the bearing ring; the second image acquisition unit comprises a second image acquisition module for acquiring an inner ring surface image of a bearing ring, and a second adjustment module for adjusting a relative distance between the second image acquisition module and the bearing ring; the third image acquisition unit comprises a third image acquisition module for acquiring an outer ring surface image of a bearing ring, a pressing and rotating module for limiting and rotating the bearing ring module, and a third adjusting module for adjusting the relative distance between the third image acquisition module and the bearing ring; the fourth image acquisition unit includes a fourth image acquisition module for acquiring the lower end surface image of the bearing ring, and a fourth adjusting module for adjusting the relative distance between the fourth image acquisition module and the bearing ring; the flipping unit includes a clamping module for clamping the bearing ring and a flipping module for rotating the clamping module; the screening unit includes a lifting module for raising and lowering the position of the bearing ring, and a pushing module for pushing the bearing ring away from the lifting module; the bearing ring defect visual detection device also includes a control unit, which is electrically connected to the first image acquisition unit, the second image acquisition unit, the third image acquisition unit, the flipping unit, the fourth image acquisition unit and the screening unit respectively.

Preferably, the first image acquisition module includes a first camera, a first bowl light source and a first ring light source which are arranged in sequence from top to bottom, and the first adjustment module includes a first motor, a first camera bracket, a first camera slide, a first camera slider, a first camera fixing frame and a first light source fixing frame, the first camera bracket is fixedly mounted on the bottom plate, the first motor and the first camera slide are respectively fixedly connected to the first camera bracket, the first camera slider and the first camera slide are slidably matched, the first motor can drive the first camera slider to slide up and down relative to the first camera slide, the first camera fixing frame and the first light source fixing frame are respectively fixedly connected to the first camera slider, the first camera is fixedly mounted on the first camera fixing frame, and the first bowl light source and the first ring light source are both fixedly mounted on the first light source fixing frame.

The first motor drives the first camera slider to slide, so that the first camera, the first bowl light source and the first ring light source slide up and down relative to the first camera bracket, thereby adjusting the spatial longitudinal positions of the first camera, the first bowl light source and the first ring light source.

Preferably, the second image acquisition module includes a second camera, a second bowl light source and a surface light source which are arranged in sequence from top to bottom, and the second adjustment module includes a second motor, a second camera bracket, a second camera slide, a second camera slider, a second camera fixing frame, a second light source fixing frame, a surface light source bracket, a surface light source alloy column and a surface light source locking nut. The second camera bracket is fixedly mounted on the base plate, the second motor and the second camera slide are respectively fixedly connected to the second camera bracket, the second camera slider and the second machine slide are slidably matched, the second motor can drive the second camera slider to slide up and down relative to the second camera slide, the second camera fixing frame and the second light source fixing frame are respectively fixedly connected to the second camera slider, the second camera is fixedly mounted on the second camera fixing frame, the second bowl light source is fixedly mounted on the second light source fixing frame, the surface light source is fixedly connected to the surface light source bracket, one end of the surface light source alloy column is fixedly connected to the base plate, the other end of the surface light source alloy column is penetrated through the surface light source bracket, and the surface light source alloy column and the surface light source bracket are detachably fixedly connected through the surface light source locking nut.

The second motor drives the second camera slider to slide, so that the second camera and the second bowl light source slide up and down relative to the second camera bracket, thereby adjusting the spatial longitudinal position of the second camera and the second bowl light source, and loosening or tightening the connection between the surface light source alloy column and the surface light source bracket by loosening or tightening the surface light source locking nut, and manually changing the position of the surface light source bracket relative to the surface light source alloy column, thereby adjusting the spatial longitudinal position of the surface light source.

Preferably, the third image acquisition module includes a third camera and a third ring light source, and the third camera and the third ring light source are arranged in the direction of the outer ring surface of the bearing ring; the third adjustment module includes a camera support plate, a third camera sliding plate, a third camera slider, a sliding plate guide rail, a sliding frame bottom plate, a third ring light source fixing frame, a third motor, a third motor fixing frame, a screw slider component, an elevation angle vertical support rod and an elevation angle locking nut; the third camera is fixedly mounted on the camera support plate, the third ring light source is fixedly mounted on the third ring light source fixing frame, and the third ring light source is fixedly mounted on the third ring light source fixing frame. The fixed frame is fixedly connected to the camera support plate, one end of the camera support plate is hingedly connected to the third camera sliding plate, the other end of the camera support plate is abutted against the third camera sliding plate through a pitch angle vertical support rod, the pitch angle vertical support rod is detachably fixedly connected to the camera support plate through a pitch angle locking nut, the bottom of the third camera sliding plate is fixedly connected to the third camera slider, the third camera slider is slidably matched with the sliding plate guide rail, the sliding plate guide rail is fixedly installed on the sliding frame bottom plate, the third motor is fixedly connected to the sliding frame bottom plate through the third motor fixing frame, and the output end of the third motor is connected to the third camera sliding plate through a screw slider component.

The third motor drives the third camera sliding plate to slide, so that the third camera and the third ring light source slide horizontally relative to the bottom plate of the sliding frame, thereby adjusting the spatial lateral position of the third camera and the third ring light source, and loosening or tightening the connection between the elevation angle vertical support rod and the camera support plate by the elevation angle locking nut, and manually changing the hinge angle of the camera support plate relative to the third camera sliding plate, thereby adjusting the elevation angle of the third camera and the third ring light source.

Preferably, the downward pressure rotating module includes a downward pressure fixed frame, a downward pressure cylinder, a downward pressure block, a downward pressure rotating block, a fifth motor and a turntable, the downward pressure fixed frame is fixedly installed on the base plate, the downward pressure cylinder is fixedly installed on the upper part of the downward pressure fixed frame, the telescopic rod of the downward pressure cylinder is fixedly connected to the downward pressure block, the downward pressure rotating block is arranged at the bottom of the downward pressure block and can rotate relative to the downward pressure block, the fifth motor and the turntable are both arranged below the downward pressure rotating block, the output end of the fifth motor is fixedly connected to the bottom surface of the turntable, and the top surface of the turntable faces the bottom of the downward pressure rotating block.

Preferably, the fourth image acquisition module includes a fourth camera, a fourth bowl light source and a fourth ring light source, and the fourth adjustment module includes a fourth motor, a fourth camera bracket, a fourth camera slide, a fourth camera slider, a fourth camera fixing frame and a fourth light source fixing frame. The fourth camera bracket is fixedly mounted on the base plate, the fourth motor and the fourth camera slide are respectively fixedly connected to the fourth camera bracket, the fourth camera slider and the fourth camera slide are slidably matched, and the fourth motor can drive the fourth camera slider to slide up and down relative to the fourth camera slide, the fourth camera fixing frame and the fourth light source fixing frame are respectively fixedly connected to the fourth camera slider, the fourth camera is fixedly mounted on the fourth camera fixing frame, and the fourth bowl light source and the fourth ring light source are both fixedly mounted on the fourth light source fixing frame.

The fourth motor drives the fourth camera slider to slide, so that the fourth camera, the fourth bowl light source and the fourth ring light source slide up and down relative to the fourth camera bracket, thereby adjusting the spatial longitudinal position of the fourth camera, the fourth bowl light source and the fourth ring light source.

Preferably, the clamping module includes a clamping cylinder fixing frame, a clamping cylinder, a clamping telescopic shaft, a clamping bracket and a clamping plate, the clamping plate is fixedly mounted on one end of the clamping bracket, the other end of the clamping bracket is connected to the clamping telescopic shaft, the clamping telescopic shaft is connected to the output end of the clamping cylinder, the clamping cylinder is fixedly mounted on the clamping cylinder fixing frame, the flipping module includes a flipping guide rail, a flipping slider, a flipping cylinder fixing frame, a flipping cylinder and a flipping shaft, the clamping cylinder fixing frame is fixedly mounted on one end of the flipping shaft, the other end of the flipping shaft is connected to the output end of the flipping cylinder, the flipping cylinder is fixedly mounted on the flipping cylinder fixing frame, and the flipping cylinder fixing frame is slidably connected to the flipping guide rail via a flipping slider.

Preferably, the lifting module includes a platform plate, a lifting platform optical axis, a lifting cylinder bracket, a lifting cylinder, a lifting cylinder telescopic axis and a lifting platform. The platform plate is fixedly connected to the base plate and is located above the lifting platform. The bottom of the lifting platform is connected to the end of the telescopic axis of the lifting cylinder. The telescopic axis of the lifting cylinder is fixedly connected to the output shaft of the lifting cylinder. The lifting cylinder is fixedly installed on the lifting cylinder bracket. The lifting platform optical axis passes through the lifting platform bracket. The two ends of the lifting platform optical axis are respectively fixedly connected to the platform plate and the base plate.

Preferably, the pushing module includes a horizontal push block, a push rod cylinder telescopic shaft, a push rod cylinder bracket, a push rod optical axis and a push rod cylinder. The push rod cylinder bracket is fixedly installed on the platform plate, the push rod optical axis passes through the push rod cylinder bracket and is fixedly connected to the horizontal push block, the push rod cylinder is fixedly installed on the push rod cylinder bracket, one end of the push rod cylinder telescopic shaft is connected to the output end of the push rod cylinder, and the other end of the push rod cylinder telescopic shaft is connected to the horizontal push block.

Preferably, the bearing ring defect visual detection device also includes a conveying unit, which is used to clamp the bearing ring and convey it in sequence to the first image acquisition unit, the second image acquisition unit, the third image acquisition unit, the flipping unit, the fourth image acquisition unit and the screening unit.

Compared with the prior art, the present invention has the following advantages:

A bearing ring defect visual detection device of the present invention can perform comprehensive detection of the inner ring surface, outer ring surface, upper end face and lower end face of the bearing ring through the mutual cooperation of each module in the first image acquisition unit, the second image acquisition unit, the third image acquisition unit, the flipping unit, the fourth image acquisition unit and the screening unit, thereby improving the bearing ring detection efficiency. Moreover, each adjustment module of the bearing ring defect visual detection device can conveniently and quickly adjust the relative distance or relative angle between each image acquisition module and the bearing ring to be tested, and is better adapted to image acquisition and visual detection of various bearing rings.

BRIEF DESCRIPTION OF THE DRAWINGS

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

FIG1 is a schematic structural diagram of a bearing ring defect visual detection device according to the present invention;

2 is a schematic diagram of the structures of the first image acquisition unit, the second image acquisition unit and the fourth image acquisition unit in the present invention;

3 is a schematic structural diagram of the first image acquisition unit, the second image acquisition unit and the fourth image acquisition unit from another perspective in the present invention;

FIG4 is a schematic diagram of the structure of a surface light source and a surface light source bracket in the present invention;

5 is a schematic diagram of the structure of a third image acquisition module and a third adjustment module in the present invention;

6 is a schematic structural diagram of another viewing angle of the third image acquisition module and the third adjustment module in the present invention;

7 is a schematic structural diagram of the pitch angle vertical support rod and the pitch angle locking nut in the present invention;

FIG8 is a schematic structural diagram of a downward pressing and rotating module in the present invention;

FIG9 is a schematic structural diagram of the downward pressing and rotating module of the present invention from another perspective;

FIG10 is a schematic diagram of the structure of the flip unit in the present invention;

FIG11 is a schematic structural diagram of the flip unit of the present invention from another viewing angle;

FIG12 is a schematic structural diagram of a screening unit in the present invention;

FIG13 is a schematic structural diagram of the screening unit of the present invention from another perspective;

14 is a schematic diagram of the structure of the conveying unit of the present invention;

FIG15 is a schematic structural diagram of the conveying unit of the present invention from another perspective;

FIG. 16 is a schematic structural diagram of the conveying unit in the present invention from another perspective.

In the figure: I, first image acquisition unit; II, second image acquisition unit; III, third image acquisition unit; IV, fourth image acquisition unit; V, flip unit; VI, screening unit; 1, bottom plate; 2, first camera bracket; 3, first motor; 4, first camera slide; 5, first camera slider; 6, first camera vertical fixing plate; 7, first camera fixing frame; 8, first camera; 9, first light source fixing frame; 10, first bowl light source; 11, first ring light source; 12, second camera bracket; 13, second motor; 14, second camera slide; 15, second camera slider; 16, second camera vertical fixing plate; 17, second camera fixing frame; 18, second camera; 19, second light source fixing frame; 20, second bowl light source; 21, surface light source alloy column; 22, surface light source locking nut; 23, surface light source bracket; 24, surface light source ; 25. Top plate of surface light source; 26. Fourth camera bracket; 27. Fourth motor; 28. Fourth camera slide; 29. Fourth camera slider; 30. Fourth camera vertical fixing plate; 31. Fourth camera fixing frame; 32. Fourth camera; 33. Fourth light source fixing frame; 34. Fourth bowl light source; 35. Fourth ring light source; 36. Third ring light source; 37. Third light source fixing frame; 38. Third camera; 39. Third camera fixing frame; 40. Camera support plate; 41. Rotating axis; 42. Rotating bearing seat; 43. Third camera sliding plate; 44. Third camera slider; 45. Sliding plate guide rail; 46. Third motor; 47. Third motor fixing frame; 48. Sliding plate bearing seat; 49. Screw slider; 50. Screw; 51. Sliding frame bottom plate; 52. Vertical support rod for elevation angle; 53. Locking nut for elevation angle; 54. Press down vertical alloy beam; 55. Press down the fixed frame; 56. Press down the cylinder; 57. Press down the vertical optical axis; 58. Press down the block; 59. Press down the rotation fast; 60. The fifth motor; 61. The fifth motor fixed frame; 62. The turntable; 63. The platform plate; 64. The bearing ring; 65. The turning guide rail; 66. The turning slider; 67. The slider locking nut; 68. The turning cylinder fixed frame; 69. The turning cylinder; 70. The turning shaft; 71. The clamping cylinder fixed Frame; 72, clamping cylinder; 73, clamping telescopic axis; 74, clamping bracket; 75, clamping plate; 76, platform plate support column; 77, lifting platform optical axis; 78, lifting cylinder bracket; 79, lifting cylinder; 80, lifting cylinder telescopic axis; 81, lifting platform bracket; 82, lifting platform; 83, horizontal push block; 84, push rod cylinder telescopic axis; 85, push rod cylinder bracket; 86, push rod optical axis; 87, push rod cylinder; 88, conveyor belt bracket; 89, conveyor belt bottom plate; 90, conveyor belt side plate; 91, conveyor belt roller; 92, front and rear guide rail fixing frame; 93, front and rear guide rail; 94, front and rear guide rail slider; 95, fixture front and rear slide plate; 96, first telescopic axis baffle; 97, front and rear cylinder telescopic axis; 98, front and rear cylinder; 99, front and rear cylinder fixing frame; 100, left and right guide rail slider; 101, left and right guide rail; 102, fixture left and right slide plate ; 103, left and right cylinder fixing brackets; 104, left and right cylinders; 105, left and right cylinder telescopic shafts; 106, second telescopic shaft baffle; 107, clamp clamping cylinder telescopic shaft; 108, clamp clamping cylinder; 109, clamp clamping cylinder fixing bracket; 110, clamp clamping guide rail; 111, clamp clamping slide block; 112, left clamp fixing bracket; 113, right clamp fixing bracket; 114, left clamp; 115, right clamp.

Detailed ways

The technical solution of the present invention is further described in detail below through specific embodiments and in conjunction with the accompanying drawings. It should be understood that the implementation of the present invention is not limited to the following embodiments, and any form of modification and/or change made to the present invention will fall within the protection scope of the present invention.

In the present invention, unless otherwise specified, all parts and percentages are weight units, and the equipment and raw materials used can be purchased from the market or are commonly used in the art. The methods in the following embodiments, unless otherwise specified, are conventional methods in the art. The components or equipment in the following embodiments, unless otherwise specified, are universal standard parts or components known to those skilled in the art, and their structures and principles are known to those skilled in the art through technical manuals or conventional experimental methods.

The embodiments of the present invention are described in detail below in conjunction with the accompanying drawings. In the following detailed description, for the convenience of explanation, many specific details are set forth to provide a comprehensive understanding of the embodiments of the present invention.

A bearing ring defect visual inspection device as shown in Figure 1 includes a base plate 1 and a first image acquisition unit I, a second image acquisition unit II, a third image acquisition unit III, a flip unit V, a fourth image acquisition unit IV and a screening unit VI which are sequentially arranged on the base plate 1.

The first image acquisition unit I comprises a first image acquisition module for acquiring an upper end surface image of the bearing ring, and a first adjustment module for adjusting a relative distance between the first image acquisition module and the bearing ring.

The second image acquisition unit II comprises a second image acquisition module for acquiring an image of the inner ring surface of the bearing ring, and a second adjustment module for adjusting the relative distance between the second image acquisition module and the bearing ring.

The third image acquisition unit III includes a third image acquisition module for acquiring an image of the outer ring surface of the bearing ring, a pressing and rotating module for limiting and rotating the bearing ring, and a third adjusting module for adjusting the relative distance between the third image acquisition module and the bearing ring.

The fourth image acquisition unit IV comprises a fourth image acquisition module for acquiring an image of the lower end surface of the bearing ring, and a fourth adjustment module for adjusting the relative distance between the fourth image acquisition module and the bearing ring.

The turning unit comprises a V-shaped clamping module for clamping the bearing ring and a turning module for rotating the clamping module.

The screening unit VI comprises a lifting module for raising and lowering the position of the bearing ring, and a pushing module for pushing the bearing ring away from the lifting module.

The bearing ring defect visual detection device also includes a control unit (not shown in the figure), which is electrically connected to the first image acquisition unit, the second image acquisition unit, the third image acquisition unit, the flipping unit, the fourth image acquisition unit and the screening unit.

The following is a detailed description of each of the above modules.

As shown in Figures 1-4, the first image acquisition module includes a first camera 8, a first bowl light source 10 and a first ring light source 11, and the first adjustment module includes a first camera bracket 2, a first motor 3, a first camera slide 4, a first camera slider 5, a first camera vertical fixing plate 6, a first camera fixing frame 7, and a first light source fixing frame 9.

The first camera slide 4, the first camera bracket 2 and the bottom plate 1 are fixedly connected in sequence. The first camera fixing frame 7 and the first light source fixing frame 9 are fixedly connected to the first camera slider 5 through the first camera vertical fixing plate 6. The first camera 8 and the first bowl light source 10 are fixedly mounted on the first camera fixing frame 7 and the first light source fixing frame 9 respectively, and the first ring light source 11 is fixedly mounted directly below the first bowl light source 10. The first motor 3 drives the first camera slide 4 to make the first camera slider 5 drive the first camera 8, the first bowl light source 10 and the first ring light source 11 to slide up and down, thereby adjusting their spatial longitudinal positions.

The second image acquisition module includes a second camera 18, a second bowl light source 20 and a surface light source 24, and the second adjustment module includes a second camera bracket 12, a second motor 13, a second camera slide 14, a second camera slider 15, a second camera vertical fixing plate 16, a second camera fixing frame 17, a second light source fixing frame 19, a surface light source alloy column 21, a surface light source locking nut 22, a surface light source bracket 23, and a surface light source top plate 25.

The second camera slide 14, the second camera bracket 12 and the bottom plate 1 are fixedly connected in sequence. The second camera fixing frame 17 and the second light source fixing frame 19 are fixedly connected to the second camera slider 15 through the second camera vertical fixing plate 16. The second camera 18 and the second bowl light source 20 are fixedly mounted on the second camera fixing frame 17 and the second light source fixing frame 19 respectively. The second motor 13 drives the second camera slide 14 to make the second camera slider 15 drive the second camera 18 and the second bowl light source 20 to slide up and down, thereby adjusting their spatial longitudinal positions. The surface light source top plate 25, the surface light source alloy column 21 and the bottom plate 1 are fixedly connected in sequence. The surface light source 24 is fixedly mounted on the surface light source bracket 23, and vertical through holes are provided at both ends of the surface light source bracket 23, and a surface light source locking nut 22 is provided at the through hole. The surface light source alloy column 21 vertically passes through the through hole and is connected to the surface light source bracket 23 for sliding up and down, and the surface light source bracket 23 and the surface light source 24 can be adjusted by the surface light source locking nut 22. The longitudinal position of the space.

The fourth image acquisition module includes a fourth camera 32, a fourth bowl light source 34 and a fourth ring light source 35, and the fourth adjustment module includes a fourth camera bracket 26, a fourth motor 27, a fourth camera slide 28, a fourth camera slider 29, a fourth camera vertical fixing plate 30, a fourth camera fixing frame 31 and a fourth light source fixing frame 33.

The fourth camera slide 28, the fourth camera bracket 26 and the bottom plate 1 are fixedly connected in sequence. The fourth camera fixing frame 31 and the fourth light source fixing frame 33 are fixedly connected to the fourth camera slider 29 through the fourth camera vertical fixing plate 30. The fourth camera 32 and the fourth bowl light source 34 are fixedly mounted on the fourth camera fixing frame 31 and the fourth light source fixing frame 33 respectively, and the fourth ring light source 35 is fixedly mounted directly below the fourth bowl light source 34. The fourth motor 27 drives the fourth camera slide 28 to make the fourth camera slider 29 drive the fourth camera 32, the fourth bowl light source 34 and the fourth ring light source 35 to slide up and down, thereby adjusting their spatial longitudinal positions.

As shown in Fig. 5-7, the third image acquisition module includes a third camera 38 and a third ring light source 36. The third adjustment module includes a third ring light source 36, a third light source fixing frame 37, a third camera 38, a third camera fixing frame 39, a camera support plate 40, a rotating shaft 41, a rotating bearing seat 42, a third camera sliding plate 43, a third camera slider 44, a sliding plate guide rail 45, a third motor 46, a third motor fixing frame 47, a sliding plate bearing seat 48, a screw slider 49, a screw 50, a sliding frame bottom plate 51, a pitch vertical support rod 52 and a pitch locking nut 53.

The third ring light source 36, the third light source fixing frame 37 and the camera support plate 40 are fixedly connected in sequence, and the third camera 38, the third camera fixing frame 39 and the camera support plate 40 are fixedly connected in sequence. The rotating bearing seat 42 is fixedly mounted on the third camera sliding plate 43, and the camera support plate 40 is rotatably connected with the rotating bearing seat 42 through the rotating shaft 41. The lower end of the elevation and depression vertical support rod 52 is against the top of the third camera sliding plate 43, and vertically passes through the through hole on the camera support plate 40, and the elevation and depression locking nut 53 is used to adjust the elevation and depression angles of the camera support plate 40, the third ring light source 36 and the third camera 38 in space. The sliding plate guide rail 45, the rotating bearing seat 42 and the third motor fixing frame 47 are fixedly mounted above the 51-sliding frame bottom plate, and the screw slider 49 and the third camera slider 44 are fixedly mounted below the third camera sliding plate 43. The third motor 46 is fixedly connected to the third motor fixing bracket 47, and drives the screw rod 50 to make the screw rod slider 49 drive the third camera sliding plate 43, the third ring light source 36 and the third camera 38 to slide forward and backward, thereby adjusting their spatial lateral positions.

As shown in Figures 8-9, the downward pressure rotation module includes a downward pressure vertical alloy beam 54, a downward pressure fixing frame 55, a downward pressure cylinder 56, a downward pressure vertical optical axis 57, a downward pressure block 58, a downward pressure rotation block 59, a fifth motor 60, a fifth motor fixing frame 61, a turntable 62 and a platform plate 63.

The downward pressure fixing frame 55, the downward pressure vertical alloy beam 54 and the bottom plate 1 are fixedly connected in sequence. The downward pressure rotating block 59 is rotatably connected with the downward pressure block 58, and the two are coaxial, and the downward pressure rotating block 59 can rotate relative to the axis of the downward pressure block. A through hole is provided on the surface of the downward pressure fixing plate 55, and the downward pressure vertical optical axis 57 vertically passes through the through hole located on the downward pressure fixing frame 55, and is fixedly connected to the upper part of the downward pressure block 58. The downward pressure cylinder 56 is fixedly installed at the upper position of the downward pressure fixing frame 55, and the telescopic rod of the downward pressure cylinder 56 is fixedly connected to the downward pressure block 58, and the spatial position of the downward pressure rotating block 59 is adjusted by the telescopic rod of the downward pressure cylinder 56.

The fifth motor 60 is fixedly installed directly below the platform plate 63 through a fifth motor fixing bracket 61 , and the rotating shaft of the fifth motor 60 is fixedly connected to the turntable 62 .

The working process of the downward pressing rotating module is as follows: when the bearing ring is transported to the third image acquisition module, the downward pressing cylinder 56 drives the downward pressing rotating block 59 to press the bearing ring 64 tightly against the turntable 62, and then the fifth motor 60 drives the turntable 62 to rotate. The bearing ring 64 will follow the turntable 62 to make a rotational motion, and the downward pressing rotating block 59 will follow the rotation. At this time, the third camera 38 captures the image of the outer ring surface of the bearing ring 64.

As shown in Fig. 10-11, the clamping module includes a clamping cylinder fixing frame 71, a clamping cylinder 72, a clamping telescopic shaft 73, a clamping bracket 74 and a clamping plate 75. The flipping module includes a flipping guide rail 65, a flipping slider 66, a slider locking nut 67, a flipping cylinder fixing frame 68, a flipping cylinder 69 and a flipping shaft 70.

The flip slider 66 is slidably connected to the flip guide rail 65, and the spatial position of the flip slider 66 is adjusted by the slider locking nut 67. The flip slider 66, the flip cylinder fixing frame 68 and the flip cylinder 69 are fixedly connected in sequence, one end of the flip shaft 70, the clamping cylinder fixing frame 71 and the clamping cylinder 72 are fixedly connected in sequence, and the other end of the flip shaft 70 is connected to the output end of the flip cylinder 69. The flip cylinder 69 rotates the flip shaft 70 to make the clamping module perform a 180-degree flip motion relative to its own axis. The clamping plate 75, the clamping bracket 74 and the clamping telescopic shaft 73 are fixedly connected in sequence, and the clamping cylinder 72 controls the up and down opening and closing of the clamping plate 75 by driving the clamping telescopic shaft 73.

The working process of the flipping module and the clamping module is as follows: when the bearing ring reaches the fourth image acquisition module, the flipping cylinder 69 drives the flipping shaft 70 to make the clamping cylinder 72, the clamping bracket 74 and the clamping plate 75 do a 180-degree flipping movement, and the clamping cylinder 72 drives the clamping telescopic shaft 73 to make the clamping bracket 74 and the clamping plate 75 do an up and down telescopic opening and closing movement.

As shown in Fig. 12-13, the lifting module includes a platform plate 63, a platform plate support column 76, a lifting platform optical axis 77, a lifting cylinder bracket 78, a lifting cylinder 79, a lifting cylinder telescopic axis 80, a lifting platform bracket 81 and a lifting platform 82. The pushing module includes a horizontal push block 83, a push rod cylinder telescopic axis 84, a push rod cylinder bracket 85, a push rod optical axis 86 and a push rod cylinder 87.

The platform plate 63, the platform plate support column 76 and the bottom plate 1 are fixedly connected in sequence. The lifting platform optical axis 77 vertically passes through the vertical through holes at both ends of the lifting platform bracket 81, and its two ends are fixedly connected to the platform plate 63 and the bottom plate 1 respectively. The lifting cylinder 79 is fixedly installed on the bottom plate 1 through the lifting cylinder bracket 78, and the lifting cylinder telescopic shaft 80 of the lifting cylinder 79 is fixedly connected to the lifting platform bracket 81. The lifting cylinder 79 adjusts the spatial longitudinal position of the lifting platform 82 by driving the lifting cylinder telescopic shaft 80 to move up and down. The push rod cylinder bracket 85 is fixedly installed on the platform plate 63, and the push rod optical axis 86 horizontally passes through the through holes at both ends of the push rod cylinder bracket 85 and is fixedly connected to the horizontal push block 83. The push rod cylinder 87 is fixedly installed on the push rod cylinder bracket 85, and the push rod cylinder telescopic shaft 84 inside it is fixedly installed with the horizontal push block 83. The push rod cylinder 87 drives the push rod cylinder telescopic shaft 84 to make the horizontal push block 83 perform horizontal forward and backward telescopic movement.

A conveying component is also provided on the side of the push module, and the conveying component includes a conveyor belt bracket 88, a conveyor belt bottom plate 89, a conveyor belt side plate 90 and a conveyor belt roller 91. The conveyor belt side plate 90, the conveyor belt bottom plate 89, the conveyor belt bracket 88 and the bottom plate 1 are fixedly connected in sequence, and the conveyor belt roller 91 is rotatably mounted with the conveyor belt side plate 90 through its own rotating shaft.

The working process of the lifting module and the pushing module is that when the bearing ring reaches the screening unit, if the control unit determines that the workpiece is an unqualified product through the collected bearing ring image, the control unit first controls the lifting cylinder 79 to lower the lifting platform 82 to the height of the conveyor belt roller 91, and then the push rod cylinder 87 drives the horizontal push block 83 to push the bearing ring into the conveyor belt roller 91, and the external manipulator sorts it to the unqualified product area. If the control unit determines that the workpiece is a qualified product, the control unit first controls the lifting cylinder 79 to raise the lifting platform 82 to the height of the platform plate 63, and then the external manipulator sorts it to the qualified product area.

The bearing ring defect visual inspection device further includes a conveying unit, which is used to clamp the bearing ring and convey it to the first image acquisition unit, the second image acquisition unit, the third image acquisition unit, the flip unit, the fourth image acquisition unit and the screening unit in sequence. The conveying unit can be implemented by using a variety of modules with conveying functions, such as a conveyor belt module and a manipulator module. The following specifically describes an example of the conveying unit used in this embodiment.

As shown in Figures 14-16, the conveying unit includes a front and rear guide rail fixing frame 92, a front and rear guide rail 93, a front and rear guide rail slider 94, a clamp front and rear slide plates 95, a first telescopic shaft baffle 96, a front and rear cylinder telescopic shaft 97, a front and rear cylinder 98, a front and rear cylinder fixing frame 99, a left and right guide rail slider 100, a left and right guide rail 101, a clamp left and right slide plates 102, a left and right cylinder fixing frame 103, a left and right cylinder 104, a left and right cylinder telescopic shaft 105, a second telescopic shaft baffle 106, a clamp clamping cylinder telescopic shaft 107, a clamp clamping cylinder 108, a clamp clamping cylinder fixing frame 109, a clamp clamping rail 110, a clamp clamping slider 111, a left clamp fixing frame 112, a right clamp fixing frame 113, a left clamp 114 and a right clamp 115.

The front and rear guide rails 93, the front and rear guide rail fixing frame 92 and the bottom plate 1 are fixedly connected in sequence, and the front and rear slide plates 95 of the fixture are slidably connected to the front and rear guide rails 93 through the front and rear guide rail sliders 94. The front and rear cylinders 98, the front and rear cylinder fixing frame 99 and the bottom plate 1 are fixedly connected in sequence, and the front and rear slide plates 95 of the fixture, the first telescopic shaft baffle plate 96 and the front and rear cylinder telescopic shaft 97 are fixedly connected in sequence, and the front and rear cylinders 98 drive the front and rear cylinder telescopic shaft 97 to make the first telescopic shaft baffle plate 96 and the front and rear slide plates 95 of the fixture slide forward and backward relative to the front and rear guide rail fixing frame 92.

The left and right guide rail sliders 100 are fixedly connected to the front and rear slides 95 of the fixture, and the left and right slides 102 of the fixture are fixedly connected to the left and right guide rails 101. The left and right slides 102 of the fixture are slidably connected to the front and rear slides 95 of the fixture through the left and right guide rails 101 and the left and right guide rail sliders 100. The left and right cylinders 104, the left and right cylinder fixing frames 103 and the front and rear slides 95 of the fixture are fixedly connected in sequence. The left and right cylinder telescopic shafts 105, the second telescopic shaft baffle 106 and the left and right slides 102 of the fixture are fixedly connected in sequence. The left and right cylinders 104 drive the left and right cylinder telescopic shafts 105 to make the left and right slides 102 of the fixture slide left and right relative to the front and rear slides 95 of the fixture.

The right clamp 115, the right clamp fixing frame 113 and the clamp left and right slides 102 are fixedly connected in sequence. The left clamp 114, the left clamp fixing frame 112 and the clamp clamping slide 111 are fixedly connected in sequence, the clamp clamping guide rail 110 and the clamp left and right slides 102 are fixedly connected, and the left clamp 114 is slidably connected to the clamp left and right slides 102 by using the clamp clamping slide 111 and the clamp clamping guide rail 110. The clamp clamping cylinder telescopic shaft 107 is fixedly connected to the second telescopic shaft baffle 106, and the clamp clamping cylinder 108, the clamp clamping cylinder fixing frame 109 and the left clamp fixing frame 112 are fixedly connected in sequence. The clamp clamping cylinder 108 drives the clamp clamping cylinder telescopic shaft 107 to make the left clamp fixing frame 112 and the left clamp 114 slide left and right relative to the clamp left and right slide plates 102 and the right clamp 115, so that the left clamp 114 and the right clamp 115 can clamp and release the bearing ring.

The following takes the conveying of the bearing ring to the platform plate 63 as an example to explain the working process of the conveying unit. The front and rear cylinders 98 push the front and rear slide plates 95 of the clamp and the entire clamp mechanism to slide forward; the clamp clamping cylinder 108 drives the left clamp 114 to slide to the right (right clamp 115), so that the left clamp 114 and the right clamp 115 clamp the bearing ring; the left and right cylinders 104 drive the left and right slide plates 102 of the clamp to slide to the left, so that the left clamp 114 and the right clamp 115 move to the next unit with the bearing ring; the clamp clamping cylinder 108 drives the left clamp 114 to slide to the left, so that the left clamp 114 and the right clamp 115 release the bearing ring; the front and rear cylinders 98 pull the front and rear slide plates 95 of the clamp and the entire clamp mechanism to slide backward; the left and right cylinders 104 drive the left and right slide plates 102 of the clamp to slide to the right, and the entire conveying unit is reset, and the above actions are continuously repeated.

The control unit is a prior art, and generally includes a PLC microcontroller with storage and programming functions, which will not be described in detail here. The control logic of the control unit is that when the bearing ring is conveyed to the first image acquisition unit, the first camera, the first bowl light source and the first ring light source are controlled to collect the upper end surface image of the bearing ring; when the bearing ring is conveyed to the second image acquisition unit, the second camera, the second bowl light source and the surface light source are controlled to collect the inner ring surface image of the bearing ring; when the bearing ring is conveyed to the third image acquisition unit, the third camera and the third ring light source are controlled to collect the outer ring surface image of the bearing ring; then, the flip unit is controlled to flip the bearing ring upside down; then, the bearing ring is conveyed to the fourth image acquisition unit, and the fourth camera, the fourth bowl light source and the fourth ring light source are controlled to collect the lower end surface image of the bearing ring. Finally, the bearing rings are transported to the screening unit, and the lifting platform 82 is controlled to descend to send the unqualified products to the height of the conveyor belt roller 91. The push rod cylinder 87 then pushes the bearing rings into the conveyor belt roller 91, and the external robot sorts them to the unqualified product area. The qualified products are lifted to the height of the platform plate 63 by the lifting platform 82, and then sorted to the qualified product area by the external robot.

The principles and implementation methods of the present invention are described in this article using specific examples. The description of the above embodiments is only used to help understand the method and core ideas of the present invention. It should be pointed out that for ordinary technicians in this technical field, without departing from the principles of the present invention, the present invention can also be improved and modified, and these improvements and modifications also fall within the scope of protection of the claims of the present invention.

Claims (10)

1. A bearing ring defect visual detection device, characterized in that: the bearing ring defect visual detection device comprises a base plate and a first image acquisition unit, a second image acquisition unit, a third image acquisition unit, a flip unit, a fourth image acquisition unit and a screening unit sequentially arranged on the base plate; the first image acquisition unit comprises a first image acquisition module for acquiring an upper end surface image of the bearing ring, and a first adjustment module for adjusting the relative distance between the first image acquisition module and the bearing ring; the second image acquisition unit comprises a second image acquisition module for acquiring an inner ring surface image of the bearing ring, and a second adjustment module for adjusting the relative distance between the second image acquisition module and the bearing ring; the third image acquisition unit comprises a third image acquisition module for acquiring an outer ring surface image of the bearing ring, a third image acquisition module for limiting and rotating the first image acquisition module and the second image acquisition module; The bearing ring comprises a pressing and rotating module for pressing down the bearing ring, and a third adjusting module for adjusting the relative distance between the third image acquisition module and the bearing ring; the fourth image acquisition unit comprises a fourth image acquisition module for acquiring the lower end surface image of the bearing ring, and a fourth adjusting module for adjusting the relative distance between the fourth image acquisition module and the bearing ring; the flipping unit comprises a clamping module for clamping the bearing ring and a flipping module for rotating the clamping module; the screening unit comprises a lifting module for raising and lowering the position of the bearing ring, and a pushing module for pushing the bearing ring away from the lifting module; the bearing ring defect visual detection device also comprises a control unit, which is electrically connected to the first image acquisition unit, the second image acquisition unit, the third image acquisition unit, the flipping unit, the fourth image acquisition unit and the screening unit respectively. 2. A bearing ring defect visual detection device according to claim 1, characterized in that: the first image acquisition module includes a first camera, a first bowl light source and a first ring light source arranged in sequence from top to bottom, the first adjustment module includes a first motor, a first camera bracket, a first camera slide, a first camera slider, a first camera fixing frame and a first light source fixing frame, the first camera bracket is fixedly installed on the bottom plate, the first motor and the first camera slide are respectively fixedly connected to the first camera bracket, the first camera slider and the first camera slide are slidably matched, the first motor can drive the first camera slider to slide up and down relative to the first camera slide, the first camera fixing frame and the first light source fixing frame are respectively fixedly connected to the first camera slider, the first camera is fixedly installed on the first camera fixing frame, and the first bowl light source and the first ring light source are both fixedly installed on the first light source fixing frame. 3. A bearing ring defect visual detection device according to claim 1, characterized in that: the second image acquisition module includes a second camera, a second bowl light source and a surface light source arranged in sequence from top to bottom, the second adjustment module includes a second motor, a second camera bracket, a second camera slide, a second camera slider, a second camera fixing frame, a second light source fixing frame, a surface light source bracket, a surface light source alloy column and a surface light source locking nut, the second camera bracket is fixedly installed on the bottom plate, the second motor and the second camera slide are respectively fixedly connected to the second camera bracket, the second camera slider and the second machine slide are slidably matched, the second motor can drive the second camera slider to slide in the up and down directions relative to the second camera slide, the second camera fixing frame and the second light source fixing frame are respectively fixedly connected to the second camera slider, the second camera is fixedly installed on the second camera fixing frame, the second bowl light source is fixedly installed on the second light source fixing frame, the surface light source is fixedly connected to the surface light source bracket, one end of the surface light source alloy column is fixedly connected to the bottom plate, the other end of the surface light source alloy column is penetrated through the surface light source bracket, and the surface light source alloy column and the surface light source bracket are detachably fixedly connected through the surface light source locking nut. 4. A bearing ring defect visual detection device according to claim 1, characterized in that: the third image acquisition module includes a third camera and a third ring light source, the third camera and the third ring light source are set in the direction of the outer ring surface of the bearing ring, the third adjustment module includes a camera support plate, a third camera sliding plate, a third camera slider, a sliding plate guide rail, a sliding frame bottom plate, a third ring light source fixing frame, a third motor, a third motor fixing frame, a screw slider component, a pitch angle vertical support rod and a pitch angle locking nut, the third camera is fixedly installed on the camera support plate, and the third ring light source is fixedly installed on the third On the ring light source fixing frame, the third ring light source fixing frame is fixedly connected to the camera support plate, one end of the camera support plate is hingedly connected to the third camera sliding plate, the other end of the camera support plate is abutted against the third camera sliding plate through a pitch angle vertical support rod, the pitch angle vertical support rod is detachably fixedly connected to the camera support plate through a pitch angle locking nut, the bottom of the third camera sliding plate is fixedly connected to the third camera slider, the third camera slider is slidably matched with the sliding plate guide rail, the sliding plate guide rail is fixedly installed on the sliding frame bottom plate, the third motor is fixedly connected to the sliding frame bottom plate through the third motor fixing frame, and the output end of the third motor is connected to the third camera sliding plate through a screw slider component. 5. A visual inspection device for bearing ring defects according to claim 1, characterized in that: the downward pressure and rotation module includes a downward pressure fixed frame, a downward pressure cylinder, a downward pressure block, a downward pressure rotating block, a fifth motor and a turntable, the downward pressure fixed frame is fixedly installed on the base plate, the downward pressure cylinder is fixedly installed on the upper part of the downward pressure fixed frame, the telescopic rod of the downward pressure cylinder is fixedly connected to the downward pressure block, the downward pressure rotating block is arranged at the bottom of the downward pressure block and can rotate relative to the downward pressure block, the fifth motor and the turntable are both arranged below the downward pressure rotating block, the output end of the fifth motor is fixedly connected to the bottom surface of the turntable, and the top surface of the turntable faces the bottom of the downward pressure rotating block. 6. A bearing ring defect visual detection device according to claim 1, characterized in that: the fourth image acquisition module includes a fourth camera, a fourth bowl light source and a fourth ring light source, the fourth adjustment module includes a fourth motor, a fourth camera bracket, a fourth camera slide, a fourth camera slider, a fourth camera fixing frame and a fourth light source fixing frame, the fourth camera bracket is fixedly installed on the bottom plate, the fourth motor and the fourth camera slide are respectively fixedly connected to the fourth camera bracket, the fourth camera slider and the fourth camera slide are slidably matched, the fourth motor can drive the fourth camera slider to slide in the up and down directions relative to the fourth camera slide, the fourth camera fixing frame and the fourth light source fixing frame are respectively fixedly connected to the fourth camera slider, the fourth camera is fixedly installed on the fourth camera fixing frame, and the fourth bowl light source and the fourth ring light source are both fixedly installed on the fourth light source fixing frame. 7. A visual inspection device for bearing ring defects according to claim 1 is characterized in that: the clamping module includes a clamping cylinder fixing frame, a clamping cylinder, a clamping telescopic shaft, a clamping bracket and a clamping plate, the clamping plate is fixedly installed on one end of the clamping bracket, the other end of the clamping bracket is connected to the clamping telescopic shaft, the clamping telescopic shaft is connected to the output end of the clamping cylinder, the clamping cylinder is fixedly installed on the clamping cylinder fixing frame, the flipping module includes a flipping guide rail, a flipping slider, a flipping cylinder fixing frame, a flipping cylinder and a flipping shaft, the clamping cylinder fixing frame is fixedly installed on one end of the flipping shaft, the other end of the flipping shaft is connected to the output end of the flipping cylinder, the flipping cylinder is fixedly installed on the flipping cylinder fixing frame, and the flipping cylinder fixing frame is slidably connected to the flipping guide rail through a flipping slider. 8. A visual inspection device for bearing ring defects according to claim 1, characterized in that: the lifting module includes a platform plate, a lifting platform optical axis, a lifting cylinder bracket, a lifting cylinder, a lifting cylinder telescopic shaft and a lifting platform, the platform plate is fixedly connected to the base plate and is located above the lifting platform, the bottom of the lifting platform is connected to the end of the telescopic shaft of the lifting cylinder, the telescopic shaft of the lifting cylinder is fixedly connected to the output shaft of the lifting cylinder, the lifting cylinder is fixedly installed on the lifting cylinder bracket, the lifting platform optical axis passes through the lifting platform bracket, and the two ends of the lifting platform optical axis are respectively fixedly connected to the platform plate and the base plate. 9. A bearing ring defect visual inspection device according to claim 8, characterized in that: the pushing module includes a horizontal push block, a push rod cylinder telescopic shaft, a push rod cylinder bracket, a push rod optical axis and a push rod cylinder, the push rod cylinder bracket is fixedly installed on the platform plate, the push rod optical axis passes through the push rod cylinder bracket and is fixedly connected to the horizontal push block, the push rod cylinder is fixedly installed on the push rod cylinder bracket, one end of the push rod cylinder telescopic shaft is connected to the output end of the push rod cylinder, and the other end of the push rod cylinder telescopic shaft is connected to the horizontal push block. 10. A bearing ring defect visual detection device according to claim 1, characterized in that: the bearing ring defect visual detection device also includes a conveying unit, which is used to clamp the bearing ring and convey it to the first image acquisition unit, the second image acquisition unit, the third image acquisition unit, the flipping unit, the fourth image acquisition unit and the screening unit in sequence.