Flange face fine crack image screening machine

Abstract

The utility model relates to an optical image screening machine, especially a flange surface fine crack image screening machine, it includes glass tray, wherein, the glass tray is sequentially equipped with feeding mechanism, detection device and discharge device along the circumference, the detection device includes flange surface detection mechanism, oblique shooting detection mechanism, overhead shooting detection mechanism, low angle shooting detection mechanism and side shooting detection mechanism, the flange surface detection mechanism includes oblique shooting camera, light supplementing light source, vertical light source and mounting disc, the mounting disc is opposite to the vertical light source and is located, and the opposite surface of the mounting disc and the vertical light source is the front, the mounting disc front is equipped with the light supplementing light source, the mounting disc is spaced apart and is provided with mounting plate along the circumference, is connected with the hanging plate of mounting plate, the oblique shooting camera is obliquely arranged on the hanging plate, and the oblique shooting camera is arranged around the mounting disc circumference, and the flange nut circumference flange surface edge below the mounting disc can be photographed.

Description

Technical Field

[0001] This utility model relates to an optical image sorting machine, and more particularly to an image sorting machine for fine cracks on a flange surface. Background Technology

[0002] Existing nut sorting machines can detect the regular size of nuts, the presence or absence of threads, and cracks on the flange edge. However, fine cracks on the flange edge have always been a difficult problem to detect. With the current popularity of deep learning, we propose to design an optical image sorting machine to take pictures of the flange edge around the flange nut and use deep learning to accurately identify fine cracks on the flange surface. Utility Model Content

[0003] In view of the technical problems existing in the background art, the present invention aims to provide a flange surface fine crack image screening machine, wherein oblique cameras are set at intervals along the circumference of the mounting plate to take pictures of the flange edge circumferentially of the flange nut.

[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: This flange surface fine crack image screening machine includes a glass tray, wherein the glass tray is sequentially provided with a feeding mechanism, a detection device, and a discharging device along its circumference. The detection device includes a flange surface detection mechanism, an oblique shooting detection mechanism, an upward shooting detection mechanism, a downward shooting detection mechanism, and a side shooting detection mechanism. The flange surface detection mechanism includes an oblique shooting camera, a supplementary light source, a vertical light source, and a mounting plate. The mounting plate is positioned opposite to the vertical light source, and the surface of the mounting plate opposite to the vertical light source is defined as the front side. The supplementary light source is located on the front side of the mounting plate. Mounting plates are spaced apart along the circumference of the mounting plate, and hanging plates are connected to the mounting plates. The oblique shooting camera is tilted and mounted on the hanging plates.

[0005] In this scheme, the oblique camera is arranged around the circumference of the mounting plate, which can take pictures of the circumferential flange edge of the flange nut passing under the mounting plate. The supplementary light source, together with the vertical light source, illuminates the flange surface, so that the fine cracks can be fully exposed.

[0006] Preferably, the mounting plate is provided with mounting grooves at intervals along the circumference, the mounting grooves extend radially along the mounting plate, and the mounting plate is movable and adjustable within the mounting grooves.

[0007] In this design, the mounting groove guides the radial movement of the mounting plate, and the radial movement adjustment of the mounting plate can accommodate flange nuts of different specifications.

[0008] Preferably, the mounting plate is provided with adjustment holes at radial intervals along the mounting disc, and the hanging plate is provided with elongated holes corresponding to the adjustment holes.

[0009] In this solution, the radial movement adjustment of the hanging plate is achieved by changing the correspondence between the elongated hole and the adjustment hole, making the adjustment more convenient.

[0010] Preferably, the oblique camera is mounted on an adjustment base, the adjustment base has a first mounting hole, the hanging plate has an arc-shaped hole corresponding to the first mounting hole, the adjustment base has a second mounting hole, and the hanging plate has a third mounting hole corresponding to the second mounting hole.

[0011] In this scheme, the tilt angle of the oblique camera is adjusted by adjusting the correspondence between the arc-shaped hole and the first mounting hole, and the double-point connection increases the connection strength between the adjustment seat and the hanging plate.

[0012] Preferably, both the mounting plate and the vertical light source are connected to a support base, the support base is adjustable in height on the mounting base, and the mounting base is adjustable in the radial direction of the glass plate on the base.

[0013] In this solution, the tilting camera and vertical light source are adjusted by raising and lowering to accommodate flange nuts of different specifications, and the mounting base is adjusted by moving horizontally to adjust the detection position.

[0014] Preferably, the supplementary light source includes a ring-shaped lamp holder, the inner side of which is tapered, and supplementary lights are distributed on the inner side of the ring-shaped lamp holder, the supplementary lights being inclined.

[0015] In this design, the supplementary lights are tilted along the tapered surface, which can provide sufficient illumination to the curved flange surface.

[0016] Preferably, the overhead detection mechanism includes a primary overhead detection component and a secondary overhead detection component. The primary overhead detection component includes a first overhead camera, a first ring light source, and a planar light source arranged vertically in sequence. The planar light source is located below the glass plate. The secondary overhead detection component includes a second overhead camera and a second ring light source. The second ring light source is located below the glass plate.

[0017] In this scheme, a first ring light source provides supplementary lighting, a plane light source provides illumination, a first overhead camera captures the top surface of the flange nut, a second ring light source provides illumination, and a second overhead camera captures the inner and outer contours of the flange nut.

[0018] Preferably, the discharge device includes a first unqualified discharge mechanism, a second unqualified discharge mechanism, and a qualified product discharge mechanism, wherein the first unqualified discharge mechanism, the second unqualified discharge mechanism, and the qualified product discharge mechanism all include a discharge nozzle and a collection box.

[0019] In this scheme, the discharge nozzle blows the flange nut away from the glass plate and into the collection box.

[0020] Preferably, the bottom of the collection box is provided with a discharge port, the discharge port is connected to a discharge channel, the discharge channel includes an inlet section and a discharge section, and both the inlet section and the discharge section are inclined.

[0021] In this design, the discharge channel guides the flange nuts that fall into the collection box out, allowing them to be collected by a large-capacity collection box.

[0022] The beneficial effects of this utility model are that the oblique camera is arranged circumferentially around the mounting plate, enabling it to photograph the circumferential flange surface edge of the flange nut passing under the mounting plate, and the radially movable adjustment mounting plate can accommodate flange nuts of different specifications. Therefore, this utility model has substantial features and progress compared with the prior art. Attached Figure Description

[0023] The following description, in conjunction with the accompanying drawings, details the embodiments and working principles of this utility model.

[0024] Figure 1 This is a schematic diagram of the structure of this utility model.

[0025] Figure 2 This is a three-dimensional structural diagram of the flange surface inspection mechanism in this utility model.

[0026] Figure 3 This is a three-dimensional structural diagram of the mounting plate and hanging plate in this utility model.

[0027] Figure 4 This is a three-dimensional structural diagram of the supplementary light source in this utility model.

[0028] Figure 5 This is a three-dimensional structural diagram of the overhead inspection mechanism in this utility model.

[0029] Figure 6 This is a three-dimensional structural diagram of the discharge device in this utility model.

[0030] Figure 7 This is a cross-sectional view of the material collection box and the discharge channel in this utility model. In the diagram: 1. Glass tray; 2. Feeding mechanism; 3. Detection device; 4. Discharge device; 5. Flange surface detection mechanism; 6. Oblique shooting detection mechanism; 7. Upward shooting detection mechanism; 8. Downward shooting detection mechanism; 9. Side shooting detection mechanism; 10. Oblique shooting camera; 11. Supplementary light source; 12. Vertical light source; 13. Mounting tray; 14. Mounting plate; 15. Hanging plate; 16. Mounting groove; 17. Adjustment hole; 18. Elongated hole; 19. Adjustment seat; 20. First mounting hole; 21. Arc-shaped hole; 22. Second mounting hole; 23. Third mounting hole; 24. 25. Support base; 26. Mounting base; 27. Ring lamp holder; 28. Fill light; 29. ​​Primary overhead inspection component; 30. Secondary overhead inspection component; 31. First overhead camera; 32. First ring light source; 33. Plane light source; 34. Second overhead camera; 35. Second ring light source; 36. First non-conforming discharge mechanism; 37. Second non-conforming discharge mechanism; 38. Conforming product discharge mechanism; 39. Discharge nozzle; 40. Collection box; 41. Drop outlet; 42. Discharge channel; 43. Feed section; 44. Discharge section. Detailed Implementation

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the implementation of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0032] In the description of this application, it should be understood that the terms "upper" and "lower" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0033] In the description of this application, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated.

[0034] See appendix Figure 1-6 An embodiment of this invention provides a flange surface fine crack image screening machine, which includes a glass disk 1.

[0035] The glass tray 1 is provided with a feeding mechanism 2, a detection device 3 and a discharging device 4 in sequence along its circumference. The detection device 3 includes a flange surface detection mechanism 5, an oblique shooting detection mechanism 6, an upward shooting detection mechanism 7, a downward shooting detection mechanism 8 and a side shooting detection mechanism 9. The flange surface detection mechanism 5 includes an oblique shooting camera 10, a supplementary light source 11, a vertical light source 12 and a mounting plate 13. The mounting plate 13 is arranged opposite to the vertical light source 12. The surface of the mounting plate 13 opposite to the vertical light source 12 is defined as the front. The supplementary light source 11 is provided on the front of the mounting plate 13. The supplementary light source 11 includes an annular lamp holder 27. The inner side of the annular lamp holder 27 has a taper. Supplementary lights 28 are distributed on the inner side of the annular lamp holder 27. The supplementary lights 28 are arranged at an angle.

[0036] The mounting plate 13 is provided with mounting grooves 16 spaced circumferentially, and the mounting grooves 16 extend radially along the mounting plate 13. The mounting plate 14 is movably adjustable within the mounting grooves 16. The mounting plate 14 is provided with adjustment holes 17 spaced radially along the mounting plate 13. The hanging plate 15 is provided with elongated holes 18 corresponding to the adjustment holes 17. The oblique camera 10 is mounted on the adjusting seat 19. The adjusting seat 19 is provided with a first mounting hole 20. The hanging plate 15 is provided with an arc-shaped hole 21 corresponding to the first mounting hole 20. The adjusting seat 19 is provided with a second mounting hole 22. The hanging plate 15 is provided with a third mounting hole 23 corresponding to the second mounting hole 22. The mounting plate 13 and the vertical light source 12 are both connected to a support base 24. The support base 24 is flexibly adjustable on the mounting base 25. The mounting base 25 is flexibly adjustable on the base 26 along the radial direction of the glass plate 1.

[0037] The overhead detection mechanism 8 includes a primary overhead detection component 29 and a secondary overhead detection component 30. The primary overhead detection component 29 includes a first overhead camera 31, a first ring light source 32, and a planar light source 33 arranged vertically in sequence. The planar light source 33 is located below the glass disk 1. The secondary overhead detection component 30 includes a second overhead camera 34 and a second ring light source 35. The second ring light source 35 is located below the glass disk 1.

[0038] In this embodiment, the feeding mechanism 2 includes a vibratory plate and a feeding conveyor belt, which are mature technologies. The feeding conveyor belt transports the flange nut to the glass plate 1, and the glass plate 1 drives the flange nut to pass through the detection device 3 and the discharge device 4 in sequence.

[0039] Five supplementary light sources 11 and vertical light sources 12 are used to illuminate the flange surface inspection mechanism. An oblique camera 10 arranged around the mounting plate 13 takes pictures for the background to learn and identify fine cracks on the flange surface edge.

[0040] Six planar light sources 33 illuminate the oblique imaging mechanism, and the obliquely set inspection camera takes pictures of the inner hole of the flange nut to identify the thread condition.

[0041] The inspection mechanism uses 7 planar light sources (33) for illumination, supplemented by a ring light source, and an upward-facing camera to photograph and identify the lower end face of the flange nut.

[0042] In a single overhead inspection, the planar light source 33 illuminates the 29th position of the detection component, the first ring light source 32 provides supplementary lighting, and the first overhead camera 31 takes pictures of and identifies the upper surface of the flange nut.

[0043] The second ring light source 35 illuminates the secondary overhead detection component 30, and the second overhead camera 34 photographs and identifies the dimensions of the inner and outer contours of the flange nut.

[0044] Nine side-view cameras at the side-view inspection facility take pictures of the side of the flange nut to identify its height.

[0045] Each of these features includes a corresponding detection mechanism that can be moved radially along the glass plate 1, as well as height adjustments for the corresponding light source and camera. The tilt angle of the six cameras in the oblique shooting detection mechanism is adjustable, and the camera and light source can be adjusted to accommodate flange nuts of different specifications.

[0046] See appendix Figure 6-7 The discharge device 4 includes a first unqualified discharge mechanism 36, a second unqualified discharge mechanism 37, and a qualified product discharge mechanism 38. The first unqualified discharge mechanism 36, the second unqualified discharge mechanism 37, and the qualified product discharge mechanism 38 all include a discharge nozzle 39 and a collection box 40. The bottom of the collection box 40 is provided with a discharge port 41. The discharge port 41 is connected to a discharge channel 42. The discharge channel 42 includes an inlet section 43 and a discharge section 44. The inlet section 43 and the discharge section 44 are both inclined.

[0047] In this embodiment, flange nuts with defects such as non-standard dimensions and surface cracks are considered defective products. Depending on the type of defect, the flange nuts are blown away from the glass plate 1 at the first defective discharge mechanism 36 or the second defective discharge mechanism 37, collected by the collection box 40, guided by the discharge channel 42, and fall into the final collection box. Qualified products are discharged at the qualified product discharge mechanism 38, where a guide plate that is radially inclined relative to the glass plate 1 is set to guide the qualified products away from the glass plate 1. The discharge nozzle 39 ensures that the qualified products can smoothly leave the glass plate 1 along the guide plate.

[0048] The above description represents the preferred embodiment of this utility model. It should be noted that the scope of protection of this utility model is not limited thereto. For those skilled in the art, various improvements, modifications, or equivalent substitutions can be made without departing from the equivalent inventive concept disclosed in this utility model, and these can also be considered as part of the scope of protection of this utility model.

Claims

1. A flange surface fine crack image screening machine, comprising a glass disk (1), characterized in that: The glass plate (1) is provided with a feeding mechanism (2), a detection device (3) and a discharging device (4) in sequence along the circumference. The detection device (3) includes a flange surface detection mechanism (5), an oblique shooting detection mechanism (6), an upward shooting detection mechanism (7), a downward shooting detection mechanism (8) and a side shooting detection mechanism (9). The flange surface detection mechanism (5) includes an oblique shooting camera (10), a supplementary light source (11), a vertical light source (12) and a mounting plate (13). The mounting plate (13) is arranged opposite to the vertical light source (12). The surface of the mounting plate (13) opposite to the vertical light source (12) is defined as the front. The supplementary light source (11) is provided on the front of the mounting plate (13). The mounting plate (13) is provided with mounting plates (14) at intervals along the circumference. The mounting plates (14) are connected to hanging plates (15). The oblique shooting camera (10) is obliquely arranged on the hanging plates (15).

2. The flange surface fine crack image screening machine as described in claim 1, characterized in that: The mounting plate (13) is provided with mounting grooves (16) spaced apart along the circumference. The mounting grooves (16) extend radially along the mounting plate (13). The mounting plate (14) is movable and adjustable within the mounting grooves (16).

3. The flange surface fine crack image screening machine as described in claim 2, characterized in that: The mounting plate (14) is provided with adjustment holes (17) at radial intervals along the mounting disc (13), and the hanging plate (15) is provided with elongated holes (18) corresponding to the adjustment holes (17).

4. The flange surface fine crack image screening machine as described in claim 1, characterized in that: The oblique camera (10) is mounted on the adjustment seat (19), the adjustment seat (19) is provided with a first mounting hole (20), the hanging plate (15) is provided with an arc-shaped hole (21) corresponding to the first mounting hole (20), the adjustment seat (19) is provided with a second mounting hole (22), and the hanging plate (15) is provided with a third mounting hole (23) corresponding to the second mounting hole (22).

5. The flange surface fine crack image screening machine as described in claim 1, characterized in that: The mounting plate (13) and the vertical light source (12) are both connected to a support base (24). The support base (24) is adjustable in height on the mounting base (25). The mounting base (25) is radially adjustable on the base (26) along the glass plate (1).

6. The flange surface fine crack image screening machine as described in claim 1, characterized in that: The supplementary light source (11) includes an annular lamp holder (27), the inner side of the annular lamp holder (27) has a taper, and supplementary lights (28) are distributed on the inner side of the annular lamp holder (27), and the supplementary lights (28) are set at an angle.

7. The flange surface fine crack image screening machine as described in claim 1, characterized in that: The overhead detection mechanism (8) includes a primary overhead detection component (29) and a secondary overhead detection component (30). The primary overhead detection component (29) includes a first overhead camera (31), a first ring light source (32), and a planar light source (33) arranged vertically in sequence. The planar light source (33) is located below the glass plate (1). The secondary overhead detection component (30) includes a second overhead camera (34) and a second ring light source (35). The second ring light source (35) is located below the glass plate (1).

8. The flange surface fine crack image screening machine as described in claim 1, characterized in that: The discharge device (4) includes a first unqualified discharge mechanism (36), a second unqualified discharge mechanism (37), and a qualified product discharge mechanism (38). The first unqualified discharge mechanism (36), the second unqualified discharge mechanism (37), and the qualified product discharge mechanism (38) all include a discharge nozzle (39) and a collection box (40).

9. The flange surface fine crack image screening machine as described in claim 8, characterized in that: The bottom of the collection box (40) is provided with a discharge port (41), and the discharge port (41) is connected to a discharge channel (42). The discharge channel (42) includes a feeding section (43) and a discharge section (44), and both the feeding section (43) and the discharge section (44) are inclined.

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