CN217332192U - Piston ring surface defect detection device - Google Patents
Piston ring surface defect detection device Download PDFInfo
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- CN217332192U CN217332192U CN202220695615.0U CN202220695615U CN217332192U CN 217332192 U CN217332192 U CN 217332192U CN 202220695615 U CN202220695615 U CN 202220695615U CN 217332192 U CN217332192 U CN 217332192U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
- Y02P90/30—Computing systems specially adapted for manufacturing
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Abstract
The utility model relates to a surface defect detection device of a piston ring, which comprises a conveying mechanism, wherein two groups of conveying belts which are synchronously conveyed are arranged in the conveying mechanism at intervals, and the two groups of conveying belts jointly horizontally support the piston ring for conveying; detection station has been laid along conveying mechanism direction of transfer, including upper surface detection station, lower surface detection station, surface detection station and internal surface detection station to all carry out visual detection to each surface of piston ring, and effectively promoted detection efficiency through full automated mode, the helping hand is in the steady quality and the reliability of guaranteeing the piston ring.
Description
Technical Field
The utility model belongs to the technical field of piston ring check out test set technique and specifically relates to a piston ring surface defect detection device.
Background
In the manufacturing process of an automobile piston ring, the surface of a piston ring product often has the defects of sand holes, air holes, scratches, indentations, pits, cracks, burrs, peeling and the like, defective products need to be detected and removed, and the quality problem of the product is avoided; on the other hand, with the gradual improvement of the production quality standard requirements of piston rings, enterprises face a great challenge to the process requirements.
In the existing manufacturing and detecting process of the piston ring, manual field visual inspection operation is mainly used, flaws in defective products are tiny and difficult to find, the result of processing of a working procedure is judged by manual observation, subjective randomness exists, misjudgment and missing judgment are easy to generate, and in addition, visual fatigue is easy to cause by manual visual inspection, so that the error rate is increased.
SUMMERY OF THE UTILITY MODEL
The applicant provides a piston ring surface defect detection device rational in infrastructure to the shortcoming among the above-mentioned prior art of production to detect the piston ring full surface through full automated mode, and effectively promoted detection efficiency, helping hand in the steady quality and the reliability of guaranteeing the piston ring.
The utility model discloses the technical scheme who adopts as follows:
a surface defect detection device for a piston ring comprises a conveying mechanism, wherein two groups of conveying belts which are synchronously conveyed are arranged in the conveying mechanism at intervals, and the two groups of conveying belts jointly and horizontally support the piston ring for conveying; detection stations are distributed along the conveying direction of the conveying mechanism and comprise an upper surface detection station, a lower surface detection station, an outer surface detection station and an inner surface detection station;
each group of detection stations is provided with a visual detection mechanism; visual detection mechanisms in the upper surface detection station and the lower surface detection station are respectively positioned right above and right below the conveying belt and capture images towards the direction of the conveying belt; the visual detection mechanisms in the other two groups of detection stations are positioned outside the side surface of the conveying belt;
and the lower surface detection station, the outer surface detection station and the inner surface detection station are all provided with a grabbing adjusting mechanism, and the grabbing adjusting mechanism grabs the piston ring from the conveying belt and adjusts the pose to take images by corresponding visual detection mechanisms.
As a further improvement of the above technical solution:
a hemispherical light source with a downward opening is arranged in an upper surface visual detection mechanism in the upper surface detection station, and a camera component is positioned in the hemispherical light source and is downward for image taking;
the lower surface vision detection mechanism in the lower surface detection station is provided with a panel light source emitting upwards, and the camera assembly penetrates through the center of the panel light source from bottom to top and captures images upwards.
The line light source is arranged in the outer surface visual detection mechanism and the inner surface visual detection mechanism in the outer surface detection station and the inner surface detection station, the line light source is supported and installed above the side surface of the conveying belt in an inclined mode through the vertical frame, the line light source and the horizontal plane are arranged in an inclined mode at an angle of 45 degrees, and the light emitting surface of the line light source faces the conveying belt.
And the camera component II in the outer surface visual detection mechanism and the camera component II in the inner surface visual detection mechanism are horizontally arranged below the linear light source and are obliquely and downwards arranged below the linear light source at an angle of 45 degrees.
The grabbing adjusting mechanisms are arranged above the conveying belt in a crossing mode through supports, Z-direction modules are arranged on the supports, and clamping jaw cylinders are arranged at moving ends of the Z-direction modules; two groups of clamping fingers of the clamping jaw air cylinder are clamped on the outer wall surface of the piston ring or are internally supported on the inner wall surface of the piston ring.
The joint of the clamping finger and the piston ring is made of flexible materials, and the clamping finger is in soft contact with the piston ring.
In the grabbing adjusting mechanism I in the lower surface detection station, the piston ring is grabbed from the conveying belt by the clamping jaw air cylinder, and the image capturing distance between the piston ring and the visual detection mechanism below is adjusted by the up-down action of the Z-direction module.
The structure of a second grabbing adjusting mechanism in the outer surface detection station and the structure of a third grabbing adjusting mechanism in the inner surface detection station are the same, a first rotating cylinder is installed at the moving end of the Z-direction module, the output axial direction of the first rotating cylinder is consistent with the length direction of the conveying belt, a second rotating cylinder is installed at the output end of the first rotating cylinder, and the output rotating axial direction of the second rotating cylinder is perpendicular to the output rotating axial direction of the first rotating cylinder; and the two output ends of the rotating cylinder are provided with clamping jaw cylinders for grabbing piston rings.
The second grabbing adjusting mechanism turns the piston ring to an inclined upward angle which is 15-25 degrees with the horizontal plane, the third grabbing adjusting mechanism turns the piston ring to an inclined upward angle which is 75-85 degrees with the horizontal plane, and the piston ring is output to be imaged by the vision detecting mechanism along with the circumferential rotation of the second rotating cylinder.
The device also comprises a shell for containing each group of detection stations, and two ends of the conveying mechanism extend out of the shell; a discharging observation window is arranged on the side surface of the shell above the output end of the conveying mechanism, and a plurality of detection observation windows are sequentially arranged on the side surface of the shell parallel to the conveying direction of the conveying mechanism; and the shell is also provided with a display operating system, and the current detection condition is displayed in real time through the display operating system.
The utility model has the advantages as follows:
the utility model has compact and reasonable structure and convenient operation, carries out visual inspection on the whole surface of the piston ring through the sequential arrangement of the upper surface detection station, the lower surface detection station, the outer surface detection station and the inner surface detection station, and replaces manual work through a full-automatic mode, thereby effectively improving the detection efficiency, helping to ensure the stable quality and the reliability of the piston ring and having good practicability;
the utility model discloses still include following advantage:
different image capturing modes are adopted for the plane and the curved surface of the piston ring, the plane directly captures images, and the curved surface is matched with 360-degree circumferential rotation of the piston ring in the image capturing process, so that reliable image capturing detection of the whole surface of the piston ring is realized;
the grabbing adjusting mechanisms in the stations, particularly the grabbing adjusting mechanisms in the outer surface detection station and the inner surface detection station, are similar or even identical, so that the device is convenient to maintain and repair, and the assistance is realized to save the maintenance cost;
in each group of stations, to getting for instance the direction, getting for instance the difference of demand, set up the light source cooperation vision detection mechanism of different grade type and get for instance the camera subassembly, the helping hand is in the reliability that promotes the piston ring and get for instance.
Drawings
Fig. 1 is a schematic view of the present invention.
Fig. 2 is the utility model discloses each group detects the arrangement schematic diagram of station on the conveying direction of conveying mechanism.
Fig. 3 is the utility model discloses the structure schematic diagram of lower surface detection station.
Fig. 4 is the structure diagram of the outer surface detection station of the utility model.
Fig. 5 is the structure diagram of the inner surface detection station of the present invention.
Wherein: 1. a housing; 2. a conveying mechanism; 3. an upper surface visual inspection mechanism; 4. a lower surface vision detection mechanism; 5. a first grabbing adjusting mechanism; 6. a second grabbing adjusting mechanism; 7. an outer surface vision detection mechanism; 8. a third grabbing adjusting mechanism; 9. an inner surface visual detection mechanism; 10. a piston ring;
11. a discharging observation window; 12. displaying an operating system; 13. detecting an observation window;
21. a conveyor belt;
41. a first camera component; 42. a panel light source;
51. a support; 52. a Z-direction module; 53. an extension arm; 54. a clamping jaw cylinder; 55. clamping fingers;
61. rotating the first air cylinder; 62. rotating a second air cylinder;
71. erecting a frame; 72. a line light source; 73. and a second camera component.
Detailed Description
The following describes embodiments of the present invention with reference to the drawings.
As shown in fig. 1 and fig. 2, the device for detecting surface defects of piston rings of the present embodiment includes a conveying mechanism 2, two sets of conveying belts 21 for synchronous conveying are arranged at intervals in the conveying mechanism 2, and the two sets of conveying belts 21 jointly and horizontally support the piston rings 10 for conveying; detection stations are distributed along the conveying direction of the conveying mechanism 2 and comprise an upper surface detection station, a lower surface detection station, an outer surface detection station and an inner surface detection station;
as shown in fig. 3, 4 and 5, each group of detection stations is provided with a visual detection mechanism; visual detection mechanisms in the upper surface detection station and the lower surface detection station are respectively positioned right above and right below the conveying belt 21 and take images towards the conveying belt 21; the visual detection mechanisms in the other two detection stations are positioned outside the side surface of the conveying belt 21;
and the lower surface detection station, the outer surface detection station and the inner surface detection station are all provided with a grabbing adjusting mechanism, and the grabbing adjusting mechanism grabs the piston ring 10 from the conveying belt 21 and adjusts the pose to take images by corresponding visual detection mechanisms.
In the present embodiment, the adjustment of the posture of the piston ring 10 includes: in the lower surface detection station, the piston ring 10 is grabbed and lifted to a preset detection height by the grabbing adjusting mechanism; in the outer surface detection station and the inner surface detection station, the piston ring 10 is grabbed and lifted to be inclined to a preset angle by the grabbing and adjusting mechanism, and 360-degree rotation of the circumference of the piston ring 10 is carried out in the process of detecting and picking images.
In this embodiment, through the setting in proper order of upper surface detection station, lower surface detection station, surface detection station and internal surface detection station, carry out visual inspection to piston ring 10 full surface to replace the manual work through full automated mode.
A hemispherical light source with a downward opening is arranged in the upper surface visual detection mechanism 3 in the upper surface detection station, and the camera component is positioned in the hemispherical light source and faces downward for image capture;
the lower surface vision detection mechanism 4 in the lower surface detection station is provided with a panel light source 42 emitting light upwards, and the first camera assembly 41 penetrates through the center of the panel light source 42 from bottom to top and captures images upwards.
In this embodiment, the hemispherical light source and the panel light source 42 can both provide stable brightness in a large area range, thereby ensuring reliable and uniform brightness for image capture of the side surface of the piston ring 10.
In each group of stations, to getting for instance the direction, getting for instance the difference of demand, set up the light source cooperation vision detection mechanism of different grade type and get for instance the camera subassembly, the helping hand is in the reliability that promotes the piston ring and get for instance.
The outer surface visual detection mechanism 7 and the inner surface visual detection mechanism 9 in the outer surface detection station and the inner surface detection station are respectively provided with a linear light source 72, the linear light source 72 is supported and installed above the side surface of the conveying belt 21 in an inclined mode through a vertical frame 71, the linear light source 72 and the horizontal plane are arranged in an inclined mode at an angle of 45 degrees, and the light emitting surface of the linear light source 72 faces the conveying belt 21.
Through the arrangement of the linear light source 72, concentrated and stable brightness is provided for the image taking of the corresponding visual detection mechanism on the corresponding curved surface of the piston ring 10.
The two camera assemblies 73 are further mounted on the vertical frames 71 in the outer surface visual detection mechanism 7 and the inner surface visual detection mechanism 9 respectively, the two camera assemblies 73 in the outer surface visual detection mechanism 7 are horizontally arranged below the linear light source 72, and the two camera assemblies 73 in the inner surface visual detection mechanism 9 are obliquely and downwards arranged below the linear light source 72 at an angle of 45 degrees, so that the image taking of the outer circumferential surface and the inner circumferential surface of the piston ring 10 is facilitated respectively.
The grabbing adjusting mechanisms are arranged above the conveying belt 21 in a crossing mode through supports 51, Z-direction modules 52 are arranged on the supports 51, and clamping jaw cylinders 54 are arranged at the moving ends of the Z-direction modules 52; the two groups of clamping fingers 55 of the clamping jaw cylinder 54 are clamped on the outer wall surface of the piston ring 10 externally or are internally supported on the inner wall surface of the piston ring 10.
The joint of the clamping finger 55 and the piston ring 10 is made of flexible material, and the clamping finger 55 is in soft contact with the piston ring 10.
In a grabbing adjusting mechanism I5 in the lower surface detection station, the clamping jaw air cylinder 54 grabs the piston ring 10 from the conveying belt 21, and the vertical motion of the Z-direction module 52 adjusts the image capturing distance between the piston ring 10 and the lower visual detection mechanism.
In the first grabbing adjustment mechanism 5, an extension arm 53 is installed at the moving end of the Z-direction module 52, and a clamping jaw cylinder 54 is installed on the bottom surface of the cantilever end of the extension arm 53; through the arrangement of the extension arm 53, the imaging influence of the movement of the Z-direction module 52 on the lower visual inspection mechanism is reduced or even avoided.
The structure of a second grabbing adjusting mechanism 6 in the outer surface detection station and the structure of a third grabbing adjusting mechanism 8 in the inner surface detection station are the same, a first rotating cylinder 61 is installed at the moving end of the Z-direction module 52, the output axial direction of the first rotating cylinder 61 is consistent with the length direction of the conveying belt 21, a second rotating cylinder 62 is installed at the output end of the first rotating cylinder 61, and the output axial direction of the second rotating cylinder 62 is vertical to the output axial direction of the first rotating cylinder 61; the output end of the second rotating cylinder 62 is provided with a clamping jaw cylinder 54 for grabbing the piston ring 10.
In this embodiment, the adjustment of the inclined posture of the piston ring 10 is realized by the arrangement of the first rotating cylinder 61, and the circumferential rotation of the piston ring 10 is performed in a matching manner in the detection process by the arrangement of the second rotating cylinder 62.
The second grabbing adjusting mechanism 6 turns the piston ring 10 to an inclined upward angle which is 15-25 degrees with the horizontal plane, the third grabbing adjusting mechanism 8 turns the piston ring 10 to an inclined upward angle which is 75-85 degrees with the horizontal plane, and the piston ring 10 is output along with the circumferential rotation of the second rotating cylinder 62 and is imaged by the vision detecting mechanism.
The device also comprises a shell 1 containing each group of detection stations, and two ends of the conveying mechanism 2 extend out of the shell 1; a discharging observation window 11 is arranged on the side surface of the shell 1 above the output end of the conveying mechanism 2, and a plurality of detection observation windows 13 are sequentially arranged on the side surface of the shell 1 parallel to the conveying direction of the conveying mechanism 2; the shell 1 is also provided with a display operation system 12, and the current detection condition is displayed in real time through the display operation system 12.
In this embodiment, different image capturing modes are adopted for the plane and the curved surface of the piston ring 10, the plane directly captures images, and the curved surface is matched with 360-degree circumferential rotation of the piston ring in the image capturing process, so that reliable image capturing detection of the whole surface of the piston ring 10 is realized.
In this embodiment, the grabbing adjusting mechanisms in each group of stations, especially the grabbing adjusting mechanisms in the outer surface detection station and the inner surface detection station, are similar or even identical, so that the device is convenient to maintain and repair, and the assistance is to save the maintenance cost.
The utility model discloses a use-way does:
the piston ring 10 is conveyed to an upper surface detection station along with the conveying mechanism 2, and the upper surface of the piston ring 10 on the lower conveying belt 21 is directly imaged by the upper surface vision detection mechanism 3;
the piston ring 10 is transmitted to a lower surface detection station along with the conveying mechanism 2, the piston ring 10 on the conveying belt 21 is grabbed and lifted to a preset height by the grabbing adjusting mechanism I5, and the lower surface of the piston ring 10 above is imaged by the lower surface vision detection mechanism 4;
the piston ring 10 is transmitted to an outer surface detection station along with the conveying mechanism 2, the piston ring 10 on the conveying belt 21 is grabbed and lifted to a preset height by the grabbing and adjusting mechanism II 6, and the piston ring 10 is rotated to a preset angle along with the operation of the rotating cylinder I61; the second rotating cylinder 62 is matched to drive the piston ring 10 to rotate circumferentially, and the outer surface vision detection mechanism 7 continuously captures images of the outer surface of the piston ring 10 in the rotating process;
the piston ring 10 is driven to an inner surface detection station along with the conveying mechanism 2, the piston ring 10 on the conveying belt 21 is grabbed and lifted to a preset height by the grabbing adjusting mechanism III 8, and the piston ring 10 rotates to a preset angle along with the operation of the rotating cylinder I61; the second rotating cylinder 62 is matched to drive the piston ring 10 to rotate circumferentially, and the inner surface vision detection mechanism 9 continuously captures images of the inner surface of the piston ring 10 in the rotating process;
the detection result of the piston ring 10 is obtained through calculation and analysis of the image taking, and the result is transmitted to the next procedure in real time, so that the separation of good products and defective products is facilitated.
The utility model discloses in, upper surface detection station, lower surface detection station, surface detection station and internal surface detection station, the spacing distance between adjacent station is the same, and each station carries out corresponding detection to the piston ring 10 that corresponds in step, detects the back at every turn, the distance of a station of conveying mechanism 2 forward conveying.
The utility model is simple in operation, convenient to use is reliable, replaces artifically through full automated mode, has effectively promoted detection efficiency, helping hand in the steady quality and the reliability of guaranteeing the piston ring.
The above description is for the purpose of explanation and not limitation of the invention, which is defined in the claims, and any modifications may be made within the scope of the invention.
Claims (10)
1. The utility model provides a piston ring surface defect detection device which characterized in that: the conveying mechanism (2) is internally provided with two groups of conveying belts (21) which are synchronously conveyed at intervals, and the two groups of conveying belts (21) jointly and horizontally support the piston ring (10) for conveying; detection stations are distributed along the conveying direction of the conveying mechanism (2), and comprise an upper surface detection station, a lower surface detection station, an outer surface detection station and an inner surface detection station;
each group of detection stations is provided with a visual detection mechanism; visual detection mechanisms in the upper surface detection station and the lower surface detection station are respectively positioned right above and right below the conveying belt (21) and take images towards the direction of the conveying belt (21); the visual detection mechanisms in the other two groups of detection stations are positioned outside the side surface of the conveying belt (21);
and the lower surface detection station, the outer surface detection station and the inner surface detection station are all provided with a grabbing adjusting mechanism, and the grabbing adjusting mechanism grabs the piston ring (10) from the conveying belt (21) and adjusts the pose to take images by corresponding visual detection mechanisms.
2. A piston ring surface defect detecting device as defined in claim 1, wherein: a hemispherical light source with a downward opening is arranged in an upper surface visual detection mechanism (3) in the upper surface detection station, and a camera component is positioned in the hemispherical light source and faces downward for image capture;
be provided with luminous panel light source (42) up in the lower surface visual detection mechanism (4) in the lower surface detection station, camera subassembly one (41) are from upwards passing panel light source (42) center and upwards taking a picture.
3. A piston ring surface defect detecting device as defined in claim 1, wherein: all set up to line source (72) in surface visual detection mechanism (7), the interior surface visual detection mechanism (9) in surface detection station and the interior surface detection station, line source (72) are through grudging post (71) support mounting in the oblique top in side of conveyer belt (21), and line source (72) and horizontal are 45 between and arrange in the slant, and line source (72) light emitting area is towards conveyer belt (21).
4. A piston ring surface defect detecting device as defined in claim 3, wherein: still install camera subassembly two (73) respectively on grudging post (71) in surface visual inspection mechanism (7), the interior surface visual inspection mechanism (9), camera subassembly two (73) among the surface visual inspection mechanism (7) horizontal arrangement is in line light source (72) below, and camera subassembly two (73) among the interior surface visual inspection mechanism (9) is the 45 below of arranging in line light source (72) of slope downwards.
5. The piston ring surface defect detecting apparatus as set forth in claim 1, wherein: the grabbing adjusting mechanisms are arranged above the conveying belt (21) in a crossing mode through supports (51), Z-direction modules (52) are mounted on the supports (51), and clamping jaw cylinders (54) are mounted at the moving ends of the Z-direction modules (52); two groups of clamping fingers (55) of the clamping jaw air cylinder (54) are clamped on the outer wall surface of the piston ring (10) or are internally supported on the inner wall surface of the piston ring (10).
6. The piston ring surface defect detecting apparatus as set forth in claim 5, wherein: the joint of the clamping finger (55) and the piston ring (10) is made of flexible materials, and the clamping finger (55) is in soft contact with the piston ring (10).
7. A piston ring surface defect detecting device as defined in claim 5, wherein: in a grabbing adjusting mechanism I (5) in the lower surface detection station, a clamping jaw air cylinder (54) grabs the piston ring (10) from the conveying belt (21), and the up-and-down action of the Z-direction module (52) adjusts the image-taking distance between the piston ring (10) and the visual detection mechanism below.
8. A piston ring surface defect detecting device as defined in claim 5, wherein: the structure of a second grabbing adjusting mechanism (6) in the outer surface detection station and a third grabbing adjusting mechanism (8) in the inner surface detection station is the same, a first rotating cylinder (61) is installed at the moving end of the Z-direction module (52), the output axial direction of the first rotating cylinder (61) is consistent with the length direction of the conveying belt (21), a second rotating cylinder (62) is installed at the output end of the first rotating cylinder (61), and the output axial direction of the second rotating cylinder (62) is perpendicular to the output axial direction of the first rotating cylinder (61); and the output end of the second rotating cylinder (62) is provided with a clamping jaw cylinder (54) for grabbing the piston ring (10).
9. The piston ring surface defect detecting apparatus as set forth in claim 8, wherein: the grabbing adjusting mechanism II (6) overturns the piston ring (10) to an inclined upward angle of 15-25 degrees with the horizontal plane, the grabbing adjusting mechanism III (8) overturns the piston ring (10) to an inclined upward angle of 75-85 degrees with the horizontal plane, and the piston ring (10) is output to be imaged by the vision detecting mechanism along with the circumferential rotation of the rotating cylinder II (62).
10. A piston ring surface defect detecting device as defined in claim 1, wherein: the device also comprises a shell (1) containing each group of detection stations, and two ends of the conveying mechanism (2) extend out of the shell (1); a discharging observation window (11) is arranged on the side surface of the shell (1) above the output end of the conveying mechanism (2), and a plurality of detection observation windows (13) are sequentially arranged on the side surface of the shell (1) parallel to the conveying direction of the conveying mechanism (2); the shell (1) is further provided with a display operation system (12), and the current detection condition is displayed in real time through the display operation system (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220695615.0U CN217332192U (en) | 2022-03-28 | 2022-03-28 | Piston ring surface defect detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220695615.0U CN217332192U (en) | 2022-03-28 | 2022-03-28 | Piston ring surface defect detection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217332192U true CN217332192U (en) | 2022-08-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220695615.0U Active CN217332192U (en) | 2022-03-28 | 2022-03-28 | Piston ring surface defect detection device |
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| Country | Link |
|---|---|
| CN (1) | CN217332192U (en) |
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2022
- 2022-03-28 CN CN202220695615.0U patent/CN217332192U/en active Active
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