Appearance detection equipment and appearance detection method

Abstract

The present invention relates to a shape detection device and a shape detection method, which are used to detect the shape of an annular workpiece, wherein the shape detection device comprises: a first detection component, wherein the first detection component comprises a plurality of cameras, wherein the plurality of cameras are used to obtain the shape image of the annular workpiece when the annular workpiece is in a first detection station, wherein the plurality of cameras are arranged around the first detection station at intervals, and the optical axis of at least one of the plurality of cameras faces the inner wall of the annular workpiece. In the above-mentioned shape detection device, the plurality of cameras are arranged around the first detection station at intervals, and the plurality of cameras are used to obtain the shape image of the annular workpiece when the annular workpiece is in the first detection station. In this way, the accuracy of the character detection on the inner wall of the annular workpiece can be greatly improved through the cooperation of the plurality of cameras. The shape detection method can automatically detect the characters on the inner wall of the annular workpiece.

Description

Technical Field

[0001] The present invention relates to the technical field of appearance detection, and in particular to an appearance detection device and an appearance detection method. Background Art

[0002] With the popularity and development of rings, the number of rings produced has gradually increased, and the types of rings have also been increasing. At the same time, with the development of rings, various designs for rings have gradually appeared to make them more beautiful, practical or have specific meanings. For example, characters are usually processed on the outer ring or inner ring wall of the ring to make the ring carry specific meanings.

[0003] In the current existing technology, whether there are defects in the characters on the inner wall of the ring is usually detected by manual visual inspection. On the one hand, the efficiency of manual inspection is low, which seriously restricts the efficiency of production; on the other hand, the recognition ability of human eye inspection is poor, and with the increase of working time and work intensity, the accuracy of human eye recognition will also greatly decrease, resulting in low accuracy of character recognition. Summary of the invention

[0004] Based on this, it is necessary to provide a shape detection device to address the efficiency and accuracy issues of annular workpiece structure detection.

[0005] A shape detection device is used to detect the shape of an annular workpiece, and the shape detection device comprises:

[0006] A first detection component, wherein the first detection component includes a plurality of cameras, wherein the plurality of cameras are used to obtain an image of the shape of the annular workpiece when the annular workpiece is in a first detection station, the plurality of cameras are arranged around the first detection station at intervals, and an optical axis of at least one of the plurality of cameras faces an inner wall of the annular workpiece.

[0007] In one of the embodiments, the shape detection device further includes a processor, and the processor is electrically connected to the plurality of cameras for processing images acquired by the plurality of cameras.

[0008] In one embodiment, the shape detection device further includes a moving mechanism, the annular workpiece is mounted on the moving mechanism, and the moving mechanism is used to drive the annular workpiece to move to the first detection station.

[0009] In one embodiment, the first detection component also includes a supporting member, the moving mechanism includes a turntable, a through hole is opened at the rotation center of the turntable, the supporting member is passed through the through hole, and there is a gap between the supporting member and the hole wall of the through hole; at least one of the cameras is arranged on the supporting member.

[0010] In one embodiment, the multiple cameras include a first camera, the inner wall of the annular workpiece is arranged to form an inner ring channel, the extension direction of the optical axis of the first camera is parallel to the extension direction of the inner ring channel, and the optical axis of the first camera is colinear with the rotation center line of the inner ring channel.

[0011] In one embodiment, the plurality of cameras include a second camera, a third camera, a fourth camera and a fifth camera that are evenly spaced apart, and the second camera, the third camera, the fourth camera and the fifth camera are all focused on the first inspection station.

[0012] In one embodiment, the first detection component further includes a first light source, and the first light source faces the first detection station.

[0013] In one embodiment, the first detection component further includes a plurality of first adjustment structures, the number of the first adjustment structures corresponds to the number of the cameras, and the plurality of cameras are disposed on the plurality of first adjustment structures in a one-to-one correspondence.

[0014] In one embodiment, the first adjustment structure includes a first adjustment device, which includes a first slide rail and a first slide table slidably matched with the first slide rail. The camera is arranged on the first slide table, and the first slide table can adjust the distance between the camera and the first inspection station when moving relative to the first slide rail.

[0015] In one embodiment, the first adjustment structure also includes a first control device, which includes a mounting plate, the camera is arranged on the mounting plate, the mounting plate is rotatably connected to the first slide, and when the mounting plate rotates relative to the first slide, the optical axis of the camera can face the annular workpiece.

[0016] In one embodiment, the first control device also includes a marking member, one side of the marking member is connected to the first slide, and the other side of the marking member is rotatably connected to the mounting plate, a first mark is provided on the marking member, and a second mark corresponding to the first mark is provided on the mounting plate, and the second mark cooperates with the first mark to determine the position of the mounting plate relative to the marking member.

[0017] In one of the embodiments, the shape detection device further includes a second detection component, and the second detection component is used to detect the inner diameter of the annular workpiece when the annular workpiece is in a second detection station.

[0018] In one embodiment, the second detection component includes a second adjusting device and a scanning component, the second adjusting device is connected to the scanning component to drive the scanning component to move, and the scanning component is used to scan the inner diameter of the annular workpiece.

[0019] In one embodiment, the second adjustment device includes a line scanning drive, a second slide rail and a second slide table slidingly matched with the second slide rail, the scanning component is connected to the second slide table, the scanning component includes a line scanning first station and a line scanning second station, and the line scanning drive can drive the scanning component to move between the line scanning first station and the line scanning second station along with the second slide table relative to the second slide rail.

[0020] In one embodiment, the scanned piece at the first line scan station has a first projection on the plane where the moving mechanism is located; the scanned piece at the second line scan station has a second projection on the plane where the moving mechanism is located, and the first projection and the second projection are respectively located on both sides of the second inspection station.

[0021] In one of the embodiments, the shape detection device further includes a third detection component, and the third detection component is used to obtain a shape image of the annular workpiece when the annular workpiece is in a third detection station.

[0022] In one embodiment, the third detection component includes an endoscope, the inner wall of the annular workpiece is arranged to form an inner circle channel, the extension direction of the optical axis of the endoscope is the same as the extension direction of the inner circle channel, and the optical axis of the endoscope passes through the rotation center of the inner circle channel.

[0023] In one embodiment, the third detection component also includes a third adjustment device, which includes a third slide rail and a third slide table slidably matched with the third slide rail, and the endoscope is arranged on the third slide table. When the third slide table moves relative to the third slide rail, the distance between the endoscope and the third detection station can be adjusted.

[0024] In one of the embodiments, when the annular workpiece is at the third inspection station, the distance between the end of the endoscope close to the third inspection station and the annular workpiece does not exceed 100 mm.

[0025] In one embodiment, the third detection component further includes a second light source, and the second light source faces the third detection station.

[0026] In one of the embodiments, the moving mechanism is provided with a plurality of fixed jigs evenly spaced apart, the fixed jigs are provided with receiving grooves matching the shape of the annular workpiece, and the annular workpiece is arranged in the receiving grooves.

[0027] A shape detection method is used to detect the shape of an annular workpiece, the shape detection method includes a camera detection step, and the camera detection step includes:

[0028] S11: moving the annular workpiece to the first inspection station;

[0029] S12: controlling a plurality of cameras to capture images of different positions of the annular workpiece;

[0030] S13: transmitting the images captured by the plurality of cameras to a processor;

[0031] S14: The processor integrates the images taken by the multiple cameras, and analyzes whether the structure of the annular workpiece in the integrated image is qualified.

[0032] In one of the embodiments, after step S14, step S20 is further included: when the image taken by the first detection component is not clear, the annular workpiece is moved to a third detection station for endoscopic detection.

[0033] In one embodiment, the step of endoscopic detection includes:

[0034] S21: moving the annular workpiece to a third inspection station;

[0035] S22: photographing the overall structure of the annular workpiece through an endoscope;

[0036] S23: transmitting the photographing result of the endoscope to the processor;

[0037] S24: The processor analyzes whether the structure of the annular workpiece in the endoscope-photographed image is qualified.

[0038] In one embodiment, the shape detection method further includes a line scanning detection step:

[0039] S31: moving the annular workpiece to the second inspection station;

[0040] S32: The scanning part scans the inner diameter of the annular workpiece;

[0041] S33: transmitting the scan result of the scanned document to the processor;

[0042] S34: The processor analyzes the scanning result and determines whether the inner diameter of the annular workpiece is qualified.

[0043] In one embodiment, in the step S32, the annular workpiece stops moving for 1-5 seconds, and the scanning component linearly scans the annular workpiece at a uniform speed.

[0044] In the above-mentioned appearance detection equipment, multiple cameras are arranged around the first detection station at intervals, and the multiple cameras are used to obtain the appearance image of the annular workpiece when the annular workpiece is in the first detection station. In this way, the appearance of the annular workpiece can be fully detected through the cooperation of multiple cameras. Compared with manual detection, not only the efficiency can be improved, but also the accuracy of detection can be improved. In addition, the optical axis of at least one of the multiple cameras is facing the inner wall of the annular workpiece, so that the camera can recognize the characters on the inner wall of the annular workpiece, and can detect whether the characters on the inner wall of the annular workpiece have defects. In this way, the accuracy of the detection of characters on the inner wall of the annular workpiece is greatly improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0045] Figure 1 This is a schematic axial view of a shape detection device provided by an embodiment;

[0046] Figure 2 for Figure 1 A schematic diagram of the axial side of some structures in the shape detection equipment shown;

[0047] Figure 3 for Figure 2 A schematic diagram of the axial side of the first detection component and the moving mechanism in the shape detection device shown;

[0048] Figure 4 This is an axial schematic diagram of an annular workpiece provided in one embodiment;

[0049] Figure 5 for Figure 2 A top view of the shape detection device shown;

[0050] Figure 6 for Figure 3 A partial enlarged view of the middle A;

[0051] Figure 7 for Figure 3 A schematic diagram of the axial side of the second detection component in the shape detection device shown;

[0052] Figure 8 for Figure 3 An axial schematic diagram of the third detection component in the shape detection device shown.

[0053] Figure numerals: 10, shape detection equipment; 20, annular workpiece; 21, inner wall; 22, character; 23, inner circle channel; 30, optical axis; 100, first detection component; 110, first camera; 120, second camera; 130, third camera; 140, fourth camera; 150, fifth camera; 160, first adjustment structure; 161, first adjustment device; 1611, first slide rail; 1612, first slide; 1612a, first adjustment handle; 162, first control device; 1621, mounting plate; 1621b, second mark; 1622, marking member; 1622a, first mark; 170, first light source; 180, first detection station; 200, second detection component; 210, second detection station ; 220, second adjusting device; 221, line scanning driving member; 222, second slide rail; 223, second slide table; 230, scanning member; 240, fixed frame; 250, line scanning first station; 260, line scanning second station; 300, third detection component; 310, third detection station; 320, endoscope; 330, third adjusting device; 331, third slide rail; 332, third slide table; 332a, second adjusting handle; 332b, second clamping member; 340, second light source; 400, lower shell; 500, upper shell; 510, detection space; 600, moving mechanism; 610, turntable; 620, fixing fixture; 621, accommodating groove; 700, bearing member; 800, calibration device; 900, indicator light. DETAILED DESCRIPTION

[0054] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present invention, so the present invention is not limited by the specific embodiments disclosed below.

[0055] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0056] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0057] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0058] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0059] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only implementation method.

[0060] See also Figure 1 , Figure 1 FIG. 1 shows an axial schematic diagram of a shape detection device in an embodiment of the present invention, Figure 2 for Figure 1 The axial schematic diagram of some structures in the shape detection equipment shown, Figure 3 for Figure 2 An axial schematic diagram of the first detection component and the moving mechanism in the shape detection device shown.

[0061] See also Figure 1An embodiment of the present invention provides a shape detection device 10 for detecting the shape of a ring-shaped workpiece 20. The shape detection device 10 includes an upper shell 500, a lower shell 400 and a first detection component 100. The upper shell 500 is connected to the lower shell 400, and the upper shell 500 and the lower shell 400 are jointly enclosed to form a detection space 510. The first detection component 100 is arranged on a side of the lower shell 400 close to the upper shell 500, that is, the first detection component 100 is located in the detection space 510. In this way, the detection process of the first detection component 100 can be in a relatively closed detection space 510, and the changes in the external environment can be avoided as much as possible to affect the detection results.

[0062] See also Figures 1 to 3 Combined with Figure 4 In one embodiment, the first inspection assembly 100 includes a plurality of cameras. The plurality of cameras are used to obtain an image of the shape of the annular workpiece 20 when the annular workpiece 20 is in the first inspection station 180; the plurality of cameras are arranged around the first inspection station 180 at intervals, and the optical axis 30 of at least one of the plurality of cameras faces the inner wall 21 of the annular workpiece 20. Figure 3 , the position of the first inspection station 180 is as follows Figure 3 As shown. It can be understood that the optical axis 30 of the camera refers to a line along which a certain degree of rotational symmetry is achieved in an optical system such as a camera lens or a microscope. The optical axis 30 is not a real line, but a dotted line that defines the path of light propagating through the system. That is, the optical axis 30 described in each embodiment and shown in the accompanying drawings are schematic diagrams, and there is actually no axis. The optical axis 30 is a well-known concept in the prior art, so it will not be described in detail. It should be understood that the description of the optical axis 30 in each embodiment is only used to illustrate the corresponding relationship between the shooting directions of multiple cameras or corresponding detection components and the annular workpiece 20 or the corresponding detection station, and does not limit the shooting range of the camera to the direction indicated by the optical axis 30. In other words, in the direction facing the camera, the camera can capture the appearance image of the annular workpiece 20 in a certain area, and the shooting area of ​​the camera can be adjusted by different annular workpieces 20 to meet the needs of the camera to capture images, so it will not be described in detail.

[0063] In the above-mentioned appearance detection equipment 10, multiple cameras are arranged around the first detection station 180 at intervals, and the multiple cameras are used to obtain the appearance image of the annular workpiece 20 when the annular workpiece 20 is in the first detection station 180. In this way, the appearance of the annular workpiece 20 can be fully detected through the cooperation of multiple cameras. Compared with manual detection, not only the efficiency can be improved, but also the accuracy of detection can be improved. In addition, the optical axis 30 of at least one of the multiple cameras faces the inner wall 21 of the annular workpiece 20, so that the camera can recognize the characters 22 on the inner wall 21 of the annular workpiece 20, and can detect whether the characters 22 on the inner wall 21 of the annular workpiece 20 have defects. In this way, the accuracy of the detection of the characters 22 on the inner wall 21 of the annular workpiece 20 is greatly improved.

[0064] In one embodiment, the shape detection device 10 further includes a processor (not shown in the figure, the same below). The processor is electrically connected to the above-mentioned multiple cameras for processing the images obtained by the multiple cameras. In other words, after the multiple cameras obtain the shape image of the annular workpiece 20 located at the first detection station 180, the image is transmitted to the processor for processing. The processor analyzes and identifies the structure of the annular workpiece 20 and the structure of the character 22 on the annular workpiece 20. The analysis result of the processor is used to determine whether the annular workpiece 20 has defects, that is, whether the annular workpiece 20 is a qualified product.

[0065] See also Figure 2 and Figure 3 In one embodiment, the shape detection device 10 further includes a moving mechanism 600, and the annular workpiece 20 is mounted on the moving mechanism 600. The moving mechanism 600 is used to drive the annular workpiece 20 to move to the first detection station 180. Specifically, the moving mechanism 600 is disposed on the lower housing 400, and the annular workpiece 20 can be automatically moved to the first detection station 180 through the driving action of the moving mechanism 600 to be detected by the first detection assembly 100, thereby improving the detection efficiency of the shape detection device 10.

[0066] Please continue reading Figure 2 and Figure 3In one embodiment, the first detection assembly 100 further includes a carrier 700. The moving mechanism 600 includes a turntable 610, and a through hole (not shown in the figure, the same below) is opened at the rotation center of the turntable 610. The carrier 700 is arranged in the through hole, and there is a gap between the carrier 700 and the hole wall of the through hole. At least one camera is arranged on the carrier 700. In this embodiment, the turntable 610 is rotatably connected to the lower shell 400. The carrier 700 is connected to the lower shell 400 to carry the camera. There is a gap between the carrier 700 and the hole wall of the through hole, so that the carrier 700 can be prevented from hindering the movement of the turntable 610, so that the turntable 610 can move the annular workpiece 20 to the first detection station 180. It can be understood that the annular workpiece 20 needs to be moved to the first detection station 180 by the turntable 610, and it is obvious that setting a camera at the position where the turntable 610 is located will cause interference with the conveying function of the turntable 610. If a camera is not provided on the side of the first inspection station 180 close to the turntable 610 , it will be difficult to fully inspect the annular workpiece 20 located at the first inspection station 180 , which will result in a blind spot in the inspection.

[0067] In the above embodiment, a through hole is provided on the turntable 610, and a carrier 700 for carrying a camera is placed in the through hole. Such a setting can prevent the installation position of the camera from hindering the rotation of the turntable 610. That is, the installation position of the camera can be flexibly set, so that multiple cameras can comprehensively obtain the appearance image of the annular workpiece 20 from various angles, avoiding the occurrence of a detection blind spot. Such a setting can ensure the comprehensiveness of the detection and improve the accuracy of the detection result.

[0068] See also Figure 3 and Figure 4 In one embodiment, the plurality of cameras include a first camera 110. The inner wall 21 of the annular workpiece 20 is arranged to form an inner ring channel 23. The extension direction of the optical axis 30 of the first camera 110 is parallel to the extension direction of the inner ring channel 23, and the optical axis 30 of the first camera 110 is collinear with the rotation center line of the inner ring channel 23. Figure 3 As shown; the inner ring channel 23 is as shown Figure 4 As shown, the extension direction of the inner ring channel 23 and the rotation center line of the inner ring channel 23 refer to Figure 4 The middle label is K.

[0069] It is understandable that, in other embodiments, if the structure of the inner wall 21 of the annular workpiece 20 is relatively complex or the shape of the character 22 is relatively complex, the multiple cameras may also include multiple cameras with the same function as the first camera 110. The following description takes two first cameras 110 as an example, that is, in this embodiment, two first cameras 110 may be provided. The angle between the extension direction of the optical axis 30 of the two first cameras 110 and the extension direction of the inner circle channel 23 is 0°-90°, and the optical axes 30 of the two cameras face the inner wall 21 of the annular workpiece 20. In this way, through the cooperation of the two first cameras 110, the accuracy of detecting the inner circle character 22 of the annular workpiece 20 can be improved.

[0070] In the above embodiment, combined with Figure 3 and Figure 4 , the extension direction of the optical axis 30 of the first camera 110 is the same as the extension direction of the inner ring channel 23, and the optical axis 30 of the first camera 110 is collinear with the rotation centerline of the channel of the inner wall 21 of the annular workpiece 20. In this way, the inner wall 21 of the annular workpiece 20 can be covered only by the first camera 110, that is, the characters 22 on the inner wall 21 of the annular workpiece 20 can be recognized by the first camera 110, so that whether the characters 22 on the inner wall 21 of the annular workpiece 20 have defects can be efficiently detected.

[0071] See also Figure 3 , Figure 4 and Figure 5 In one embodiment, the plurality of cameras include a second camera 120, a third camera 130, a fourth camera 140, and a fifth camera 150 that are evenly spaced. The second camera 120, the third camera 130, the fourth camera 140, and the fifth camera 150 are all focused on the first inspection station 180. The second camera 120, the third camera 130, the fourth camera 140, and the fifth camera 150 are all focused on the first inspection station 180, which means that before the shape inspection device 10 inspects the annular workpiece 20, the position, focal length, shooting angle, and other parameters of each camera can be adjusted according to the shape of the different annular workpieces 20, so that when the annular workpiece 20 is in the first inspection station 180, the plurality of cameras can obtain clear images.

[0072] Specifically, in the above embodiment, the distances between the second camera 120, the third camera 130, the fourth camera 140 and the fifth camera 150 are all 90°. By setting a plurality of second cameras 120, the third camera 130, the fourth camera 140 and the fifth camera 150 distributed at intervals of 90°, the shape of the annular workpiece 20 can be comprehensively detected from four evenly distributed directions. And because the intervals between the second camera 120, the third camera 130, the fourth camera 140 and the fifth camera 150 are all 90°, the shooting ranges of the four cameras can fully cover the shape of the annular workpiece 20 to avoid detection blind spots.

[0073] It is understandable that the multiple cameras may also include three cameras or five cameras evenly spaced, and the specific number of cameras in the multiple cameras may be appropriately adjusted according to the size of the annular workpiece 20, the size of the turntable 610, and the size of the carrier 700, and the intervals between the multiple cameras may be adaptively adjusted. For example, when there are three cameras, the intervals between the cameras may be set to 120°, and when there are five cameras, the intervals between the cameras may be set to 72°, etc. At the same time, it is understandable that the intervals between the multiple cameras may also be set to be uneven according to the structure of the turntable 610 and the structure of the carrier 700. At this time, it is necessary to enable the shooting range of the multiple cameras to fully cover all areas on the annular workpiece 20 to avoid detection blind spots.

[0074] See also Figure 3 In one embodiment, the first detection component 100 also includes a first light source 170, and the first light source 170 faces the first detection station 180. The first light source 170 can illuminate the first detection station 180. In this way, the influence of the light and brightness changes of the external environment on the shooting effect can be reduced. At the same time, the first light source 170 can also be used to illuminate some detailed structures on the annular workpiece 20, for example, it can illuminate the characters 22 on the annular workpiece 20 to determine whether the structure of the characters 22 is clear and complete. Or gap defects and scratches that may exist on the annular workpiece 20. The first light source 170 can be arranged on the first slide rail 1611 corresponding to the upper shell 500, the lower shell 400 or the first camera 110.

[0075] Please continue reading Figure 6 Combined with Figure 3 In one embodiment, the first detection component 100 further includes a plurality of first adjustment structures 160, the number of which corresponds to the number of cameras, and the plurality of cameras are arranged on the plurality of first adjustment structures 160 in a one-to-one correspondence. The positions of the cameras can be adjusted by the first adjustment structures 160, which can correct the positions of the optical axes 30 of the cameras on the one hand, and can also adjust the first adjustment structures 160 corresponding to the respective cameras so that the plurality of cameras can cooperate to detect the annular workpieces 20 of different sizes, thereby improving the applicability of the shape detection device 10.

[0076] Please refer again Figure 6 Combined with Figure 3In one embodiment, the first adjustment structure 160 includes a first adjustment device 161. The first adjustment device 161 includes a first slide rail 1611 and a first slide platform 1612 that slidably cooperates with the first slide rail 1611. The camera is arranged on the first slide platform 1612. When the first slide platform 1612 moves relative to the first slide rail 1611, it is possible to adjust the distance between the camera and the first inspection station 180. By providing the first adjustment device 161, the distance between the camera and the first inspection station 180 can be adjusted, so that the first inspection component 100 can adapt to annular workpieces 20 of different sizes, and at the same time, it can also avoid other structures on the shape inspection equipment 10, such as the turntable 610 or the first adjustment structure 160 corresponding to other cameras, blocking the optical axis 30 and making it impossible to obtain a clear or complete appearance image of the annular workpiece 20. The distance between the above-mentioned camera and the first inspection station 180 refers to Figure 3 and Figure 6 The distance along the Z axis.

[0077] Specifically, one end of the first slide rail 1611 is connected to the lower housing 400 so that the first adjustment device 161 remains relatively stable. The first adjustment device 161 also includes a first adjustment handle 1612a and a first clamping member, and the first adjustment handle 1612a is connected to the first slide 1612. The first clamping member is disposed on the first slide 1612, and the first clamping member is used to fix the first slide 1612 relative to the first slide rail 1611. The first adjustment handle 1612a can be used to control the first slide 1612 to slide relative to the first slide rail 1611 to adjust the position of the camera disposed on the first slide 1612; the first clamping member can be used to prevent the first slide 1612 from moving relative to the first slide rail 1611 to prevent the camera from shaking and affecting the shooting results.

[0078] See also Figure 6 In one embodiment, the first adjustment structure 160 further includes a first control device 162. The first control device 162 includes a mounting plate 1621. The camera is disposed on the mounting plate 1621. The mounting plate 1621 is rotatably connected to the first slide 1612, and when the mounting plate 1621 rotates relative to the first slide 1612, the optical axis 30 of the camera can be directed toward the annular workpiece 20. Specifically, in combination with the above-mentioned embodiment, the distance between the camera and the first inspection station 180 is adjusted by the first adjustment device 161, and the optical axis 30 of the camera is adjusted by the first control device 162, so that the camera can capture the shape of the annular workpiece 20 at a suitable position, that is, to avoid the optical axis 30 being blocked or partially blocked and unable to capture the annular workpiece 20. In other words, through the cooperation of the first adjustment device 161 and the first control device 162, the camera can capture the image of the annular workpiece 20 at a suitable angle.

[0079] It can be understood that each camera is provided with a first adjustment structure 160, and the first adjustment structure 160 corresponding to each camera includes a first adjustment device 161 and a first control device 162. In this way, through the adaptive adjustment between the multiple first adjustment structures 160, multiple cameras can cover the annular workpiece 20, so as to fully obtain the shape structure of the annular workpiece 20, so as to fully detect the shape structure of the annular workpiece 20.

[0080] That is, specifically, the distance between the camera adjusted by the first adjustment device 161 corresponding to each camera and the first detection station 180 can be the same or different. In other words, the Z-axis coordinate value corresponding to each camera can be the same or different, and the optical axis 30 of the camera with different Z-axis coordinate values ​​can have different angles with the extension direction of the inner ring channel 23. In other words, the position of the camera can be adjusted by the first adjustment structure 160, so that each camera can simultaneously shoot the inner wall 21 and the outer wall of the annular workpiece 20. In other words, through the adjustment effect of the first adjustment structure 160 corresponding to multiple cameras, multiple cameras can all shoot the characters 22 on the inner wall 21. In this way, the accuracy of detecting the characters 22 on the inner wall 21 of the annular workpiece 20 is further improved.

[0081] Further, in combination with the above embodiment, the first camera 110 may not have the first control device 162. It is understandable that, for the annular workpiece 20, the extension direction and the rotation center line of the inner ring channel 23 of the annular workpiece 20 of different sizes are the same or almost the same. Since the appropriate shooting angle of the first camera 110 is: the extension direction of the optical axis 30 of the first camera 110 is parallel to the extension direction of the inner ring channel 23, and the optical axis 30 of the first camera 110 is collinear with the rotation center line of the inner ring channel 23. Therefore, it is only necessary to place the annular workpiece 20 in the first inspection station 180 to ensure that the first camera 110 has a suitable shooting angle. It should be understood that when there are two or more first cameras 110, the first adjustment structure 160 corresponding to the first camera 110 still needs the first control device 162 to adjust its shooting angle.

[0082] Please continue reading Figure 6 In one embodiment, the first control device 162 further includes a marking member 1622. One side of the marking member 1622 is connected to the first slide 1612. The other side of the marking member 1622 is rotatably connected to the mounting plate 1621, and a first mark 1622a is provided on the marking member 1622. A second mark 1621b corresponding to the first mark 1622a is provided on the mounting plate 1621, and the second mark 1621b cooperates with the first mark 1622a to determine the position of the mounting plate 1621 relative to the marking member 1622.

[0083] In the above embodiment, the first mark 1622a provided on the marking member 1622 cooperates with the second mark 1621b provided on the mounting plate 1621, so that the angle of rotation of the mounting plate 1621 relative to the marking member 1622 can be known. In this way, for annular workpieces 20 of the same shape or annular workpieces 20 of similar appearance, there is no need to repeatedly adjust the first adjustment device 161 and the first control device 162. By recording the position parameters obtained during the first adjustment, the above parameters can be directly used. That is, by setting the first mark 1622a and the second mark 1621b that cooperates with the first mark 1622a, the position of the camera can be adjusted easily. In this way, the efficiency of detection can be improved.

[0084] It is understandable that the first mark 1622a can also be directly set on the first slide 1612. One of the first mark 1622a and the second mark 1621b is a pointer, and the other is a scale. For example, the first mark 1622a can be a pointer, and the second mark 1621b is a scale. In the process of rotating the camera, that is, any position of the mounting plate 1621 relative to the marking member 1622, the pointer of the first mark 1622a can point out a scale of the second mark 1621b corresponding to the position of the mounting plate 1621. In this way, repeated adjustments are facilitated. Similarly, similar first marks 1622a and second marks 1621b can also be set for the first adjustment device 161 to facilitate determining the relative position of the first slide 1612 and the first slide rail 1611.

[0085] See also Figure 7 Combined with Figure 4 In one embodiment, the shape detection device 10 further includes a second detection assembly 200. The second detection assembly 200 is used to detect the inner diameter of the annular workpiece 20 when the annular workpiece 20 is in the second detection station 210. It is understandable that the annular workpiece 20 can move between the first detection station 180 and the second detection station 210 with the turntable 610. In this way, the inner diameter of the annular workpiece 20 can be easily detected through the second detection station 210. Avoid inaccurate measurement of parameters when detecting specific parameters through a camera.

[0086] Please continue reading Figure 7In one embodiment, the second detection component 200 includes a second adjustment device 220 and a scanning member 230, and the second adjustment device 220 is connected to the scanning member 230 to drive the scanning member 230 to move, and the scanning member 230 is used to scan the inner diameter of the annular workpiece 20. Specifically, the second detection component 200 can obtain the inner diameter of the annular workpiece 20 by linear scanning. When the inner diameter of the annular workpiece 20 is obtained by linear scanning, it is necessary to make the second detection component 200 and the annular workpiece 20 have relative motion. Compared with keeping the scanning member 230 fixed and moving the annular workpiece 20, driving the scanning member 230 to move by the second adjustment device 220 can better control the moving rate of the scanning member 230, make the scanning result more accurate, and improve the accuracy of the detection. Of course, the scanning member 230 can also be fixed according to demand, and the annular workpiece 20 moves relative to the scanning member 230 during the linear scanning process, which is not limited here.

[0087] Please refer again Figure 7 Combined with Figure 5 In one embodiment, the second adjustment device 220 includes a line scanning drive 221, a second slide rail 222, and a second slide 223 that is slidably matched with the second slide rail 222. The scanning component 230 is connected to the second slide 223, and the scanning component 230 includes a first line scanning station 250 and a second line scanning station 260. The line scanning drive 221 can drive the scanning component 230 to move between the first line scanning station 250 and the second line scanning station 260 relative to the second slide rail 222 along with the second slide 223. Specifically, the extension direction of the second slide rail 222 can be a tangent to the turntable 610. When the second slide 223 moves, the shortest distance between the second slide 223 and the moving mechanism 600 remains unchanged. That is, the moving trajectory of the second slide 223 moving between the first line scanning station 250 and the second line scanning station 260 is parallel to the turntable 610. In this way, it is possible to avoid errors in the scanning result caused by changes in the scanning distance during the moving scanning of the scanning component 230. In this way, the accuracy of the test results can be further guaranteed. Figure 5 The second slide 223 and the scanning element 230 are shown in the first line scanning station 250. It should be understood that the first inspection station 180 and the second inspection station 210 described in each embodiment are all positions where the annular workpiece 20 is located relative to each inspection component in the moving mechanism 600. The first line scanning station 250 and the second line scanning station 260 are two stations where the scanning element 230 or the scanning element 230 and the second slide 223 are relative to the second slide rail 222.

[0088] In one embodiment, the second adjustment device 220 includes a fixing frame 240. The second slide rail 222 is disposed on the fixing frame 240, and the second slide rail 222 is connected to the fixing frame 240. The fixing frame 240 is used to support the second slide rail 222 and the second slide table 223 and the scanning part 230 disposed on the second slide rail 222. One end of the fixing frame 240 is connected to the lower housing 400.

[0089] See also Figure 7 Combined with Figure 5 , the scanning piece 230 at the first line scanning station 250 has a first projection on the plane where the moving mechanism 600 is located; the scanning piece 230 at the second line scanning station 260 has a second projection on the plane where the moving mechanism 600 is located. The first projection and the second projection are respectively located on both sides of the second detection station 210. In combination with the above embodiment, since the first projector and the second projection are respectively located on both sides of the first detection station 180, and the scanning piece 230 can move parallel to the moving mechanism 600. In this way, the scanning piece 230 can be parallel to the moving mechanism 600 and scanned and moved from one side of the second detection station 210 to the other side of the second detection station 210. Thereby, it can be ensured that the scanning piece 230 can fully scan the overall shape structure of the annular workpiece 20, and ensure the accuracy of the inner diameter detection. In this way, the reliability of the second detection component 200 in detecting the inner diameter can be improved.

[0090] See also Figure 8 Combined with Figure 4 In one embodiment, the shape detection device 10 further includes a third detection component 300. The third detection component 300 is used to obtain the shape image of the annular workpiece 20 when the annular workpiece 20 is in the third detection station 310. In this embodiment, it can be understood that the third detection component 300 has the same detection function as the first detection component 100. The third detection component 300 is used to detect the shape image of the annular workpiece 20, that is, the third detection component 300 is used to detect the inner wall 21 and the outer wall shape of the annular workpiece 20 and whether there are structural defects. At the same time, the third detection component 300 can also detect whether there are defects in the characters 22 on the inner wall 21 of the annular workpiece 20.

[0091] In the above embodiment, when the result detected by the first detection component 100 is not clear, or the image has other defects, the moving mechanism 600 can move the annular workpiece 20 to the third detection station 310. The third detection component 300 can further detect the structure of the annular workpiece 20. It can be understood that the third detection component 300 is an auxiliary detection component of the first detection component 100, or in other words, the third detection component 300 is a further precise detection of the first detection component 100. Of course, as mentioned above, the third detection component 300 can completely detect various parts on the annular workpiece 20, and the above auxiliary detection is only for ease of understanding, and does not limit the third detection component 300 to have detection limitations.

[0092] See also Figure 8 Combined with Figure 4 and Figure 5 In one embodiment, the third detection component 300 includes an endoscope 320. The inner wall 21 of the annular workpiece 20 is arranged to form an inner circle channel 23. The extension direction of the optical axis 30 of the endoscope 320 is the same as the extension direction of the inner circle channel 23, and the optical axis 30 of the endoscope 320 passes through the rotation center of the inner circle channel 23. Since the outer wall of the annular workpiece 20 is mainly detected by the second camera 120, the third camera 130, the fourth camera 140 and the fifth camera 150, it is less likely to have unclear detection problems; while the inner wall 21 of the annular workpiece 20 is mainly detected by the first camera 110, it is relatively easy to have unclear detection problems. In addition, the inner wall 21 of the annular workpiece 20 is provided with characters 22. Compared with the detection of the outer wall of the annular workpiece 20, the detection of the characters 22 requires higher detection accuracy. Therefore, the extension direction of the optical axis 30 of the endoscope 320 is set to be the same as the extension direction of the inner circle channel 23, and the optical axis 30 of the endoscope 320 passes through the rotation center of the inner circle channel 23. In this way, it can be further ensured that the inner wall 21 of the annular workpiece 20 and the characters 22 on the inner wall 21 are detected more accurately, thereby ensuring the detection effect of the shape detection device 10.

[0093] See also Figure 8 In one embodiment, the third detection assembly 300 further includes a third adjusting device 330. The third adjusting device 330 includes a third slide rail 331 and a third slide table 332 slidably matched with the third slide rail 331. The endoscope 320 is disposed on the third slide table 332, and the third slide table 332 can adjust the distance between the endoscope 320 and the third detection station 310 when moving relative to the third slide rail 331. In this way, the position of the endoscope 320 can be adjusted for different annular workpieces 20 by moving the third slide table 332, so that the third detection assembly 300 can be applied to different annular workpieces 20. The third slide rail 331 is connected to the lower housing 400 to make the position of the endoscope 320 relatively stable.

[0094] Specifically, the third adjustment device 330 includes a second adjustment handle 332a and a second clamping member 332b, and the second adjustment handle 332a is connected to the third slide 332. The second clamping member 332b is disposed on the third slide 332, and the second clamping member 332b is used to fix the third slide 332 relative to the third slide rail 331. The third slide 332 can be controlled to slide relative to the third slide rail 331 by the second adjustment handle 332a to adjust the position of the endoscope 320 disposed on the third slide 332; the third slide 332 can be prevented from moving relative to the third slide rail 331 by the second clamping member 332b, so as to prevent the endoscope 320 from shaking and affecting the shooting result.

[0095] In one embodiment, when the annular workpiece 20 is in the third inspection station 310, the distance between the end of the endoscope 320 close to the third inspection station 310 and the annular workpiece 20 does not exceed 100 mm. In this way, it is possible to ensure that the endoscope 320 can capture a clear image, avoiding the problem of unclear appearance images being captured again.

[0096] See also Figure 8 In one embodiment, the third detection assembly 300 further includes a second light source 340, and the second light source 340 faces the third detection station 310. Specifically, the second light source 340 can be directly disposed on the upper housing 500, the lower housing 400, or even on the third slide 332. The second light source 340 is used to provide light to the third detection station 310 to illuminate the annular workpiece 20 located on the third detection station 310. This prevents factors such as external light from affecting the shooting effect of the endoscope 320, and can illuminate the gaps, characters 22 and other detailed structures on the annular workpiece 20 to improve the detection effect.

[0097] In various embodiments, it is understood that the second detection component 200 and the third detection component 300 are also electrically connected to the above-mentioned processor. The second detection component 200 and the third detection component 300 can transmit the scanning or shooting results to the processor. The processor can analyze and identify the detection results of the second detection component 200 and the third detection component 300, and use this to determine whether the annular workpiece 20 is a qualified product.

[0098] See also Figure 3In one embodiment, the shape detection device 10 further includes an indicator light 900. The indicator light 900 is electrically connected to the processor, and the indicator light 900 includes two display signals. Specifically, when the detection result of the annular workpiece 20 of the processor is qualified, the indicator light 900 displays a qualified signal; otherwise, an unqualified signal is displayed. It can be understood that the annular workpiece 20 indicated by the indicator light 900 is whether the annular workpiece 20 at the unloading location is qualified. Of course, the annular workpiece 20 indicated by the indicator light 900 can also be set according to actual needs to be whether the annular workpiece 20 detected by any detection station is qualified, which is not limited here.

[0099] See also Figures 2 to 4 In one embodiment, the mobile mechanism 600 is provided with a plurality of fixed jigs 620 evenly spaced apart. The fixed jig 620 is provided with a receiving groove 621 matching the shape of the annular workpiece 20. The annular workpiece 20 is disposed in the receiving groove 621. Specifically, the fixed jig 620 can be disposed on the turntable 610.

[0100] In one embodiment, the moving mechanism 600 further includes a turntable driver (not shown in the figure, the same below). The turntable driver can drive the turntable 610 to move the workpiece between the first inspection station 180 and the second inspection station 210. When the image captured by the first inspection assembly 100 is not clear, the turntable driver can drive the turntable 610 to move the workpiece to the third inspection station 310.

[0101] See also Figure 3 In one embodiment, the shape detection device 10 further includes a calibration device 800, which is electrically connected to the turntable drive. The calibration device 800 is arranged on the lower housing 400, and the turntable 610 is provided with a reference member (not shown in the figure, the same below) that cooperates with the calibration device 800. Through the cooperation between the calibration device 800 and the reference member, it can be determined whether the turntable 610 drives the annular workpiece 20 to accurately reach the first detection station 180, the second detection station 210 or the third detection station 310. If the annular workpiece 20 does not accurately reach the first detection station 180, the second detection station 210 or the third detection station 310, the calibration device 800 can control the turntable drive member to drive the turntable 610 to accurately reach the corresponding position. Or if the workpiece does not accurately reach the first detection station 180, the second detection station 210 or the third detection station 310, the calibration device 800 can issue a reminder, and then perform manual calibration.

[0102] In one embodiment, a shape detection method is provided, the shape detection method includes a camera detection step. The camera detection step includes:

[0103] S11: moving the annular workpiece 20 to the first inspection station 180;

[0104] S12: Control multiple cameras to capture images of the annular workpiece 20 at different positions;

[0105] S13: transmitting the images captured by the multiple cameras to the processor;

[0106] S14: The processor integrates the images taken by the multiple cameras and analyzes whether the structure of the annular workpiece 20 in the integrated image is qualified.

[0107] Thus, in the camera detection step, multiple cameras are used to capture images of different positions of the annular workpiece 20, and the images captured by the multiple cameras are integrated by the processor. Thus, images of different positions on the annular workpiece 20 can be obtained, and the processor can analyze and identify whether there are defects at different positions of the detected annular workpiece 20.

[0108] In one embodiment, after step S14, step S20 is further included: when the image captured by the first detection component 100 is not clear, the annular workpiece 20 is moved to the third detection station 310 for endoscope 320 detection. Further detection of the workpiece by endoscope 320 can avoid the processor being unable to determine whether the annular workpiece 20 is qualified due to the unclear image captured by the first detection component 100.

[0109] In one embodiment, the steps of the endoscope 320 detection specifically include:

[0110] S21: moving the annular workpiece 20 to the third inspection station 310;

[0111] S22: The endoscope 320 photographs the overall structure of the annular workpiece 20;

[0112] S23: Transmitting the photographing result of the endoscope 320 to the processor;

[0113] S24: The processor analyzes whether the structure of the annular workpiece 20 in the image captured by the endoscope 320 is qualified.

[0114] In one embodiment, the shape detection method further includes a line scanning detection step:

[0115] S31: moving the annular workpiece 20 to the second inspection station 210;

[0116] S32: the scanning component 230 scans the inner diameter of the annular workpiece 20;

[0117] S33: Transmitting the scan result of the scanned document 230 to the processor;

[0118] S34: The processor analyzes the scanning result and determines whether the inner diameter of the annular workpiece 20 is qualified.

[0119] In the above embodiment, step S31 refers to the turntable 610 removing the annular workpiece 20 currently located at the second inspection station 210 and inspected by the second inspection assembly 200. The next annular workpiece 20 adjacent to the annular workpiece 20 and located in the moving direction of the turntable 610 is moved to the second inspection station 210. It can be understood that there is no order between the line scan inspection step and the camera inspection step, that is, the line scan inspection step can be before or after the camera inspection step.

[0120] The above step S32 refers to the scanning element 230 moving from the first line scanning station 250 to the second line scanning station 260 along the second slide rail 222 under the driving action of the line scanning driving element 221 to linearly scan the inner diameter of the annular workpiece 20. It can be understood that the scanning element 230 can also detect the inner diameter of the annular workpiece 20 when it moves from the second line scanning station 260 to the first line scanning station 250 along the second slide rail 222 under the driving action of the line scanning driving element 221.

[0121] In one embodiment, in step S32, the annular workpiece 20 stops moving for 1-5 seconds, and the scanning member 230 linearly scans the annular workpiece 20 at a uniform speed. When the inner diameter of the annular workpiece 20 is obtained by linear scanning, it is necessary to make the second detection component 200 and the annular workpiece 20 have relative movement. Since the movement of the annular workpiece 20 is driven by the turntable 610, compared with keeping the scanning member 230 fixed and moving the annular workpiece 20, driving the scanning member 230 to move by the second adjustment device 220 can better control the movement rate of the scanning member 230, make the scanning result more accurate, and improve the accuracy of detection.

[0122] In various embodiments, a plurality of annular workpieces 20 are evenly spaced and arranged on the turntable 610. The first detection assembly 100, the second detection assembly 200, and the third detection assembly 300 can simultaneously detect different annular workpieces 20 located on the turntable 610. Specifically, the time for the annular workpiece 20 to stop moving can be specifically 2 seconds. Within the 2 seconds when the annular workpiece 20 stops, the first detection assembly 100, the second detection assembly 200, and the third detection assembly 300 can simultaneously detect the annular workpiece 20.

[0123] It is understandable that, for the above steps S11, S21 and S31, the actions of the turntable 610 are the same, that is, they all rotate an angle relative to the lower housing 400. The time required for the above step S31 may be 1 second. In combination with the above-mentioned time for the annular workpiece 20 to stop moving, it may be specifically 2 seconds, that is, it takes an average of 3 seconds to detect each annular workpiece 20.

[0124] Specifically, step S01 is included before step S11, and step S02 is included before step S21. S01 and S02 are pre-processing steps. Step S01 is to adjust the position and shooting angle of each camera so that each camera can fully cover the external structure of the annular workpiece 20. Step S02 does not adjust the distance between the endoscope 320 and the third inspection station 310 to adapt to different annular workpieces 20. It can be understood that the external structure of the annular workpiece 20 also includes the inner wall 21 of the annular workpiece 20 and the characters 22 on the inner wall 21.

[0125] The technical features of the above embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0126] The above embodiments only express several implementation methods of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the invention patent. It should be pointed out that, for those of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the attached claims.

Claims

1. A shape detection device for detecting the shape of a ring-shaped workpiece, characterized in that: The appearance detection device comprises: A first detection component, wherein the first detection component includes a plurality of cameras, wherein the plurality of cameras are used to obtain an image of the shape of the annular workpiece when the annular workpiece is in a first detection station, wherein the plurality of cameras are arranged around the first detection station at intervals, and an optical axis of at least one of the plurality of cameras faces an inner wall of the annular workpiece; a second detection assembly, the second detection assembly is used to detect the inner diameter of the annular workpiece when the annular workpiece is in the second detection station, the second detection assembly includes a second adjustment device and a scanning component, the second adjustment device is connected to the scanning component to drive the scanning component to move, and the scanning component is used to scan the inner diameter of the annular workpiece; a third detection component, the third detection component is used to obtain an image of the shape of the annular workpiece when the annular workpiece is in a third detection station, the third detection component includes an endoscope, the inner wall of the annular workpiece is surrounded to form an inner circle channel, the extension direction of the optical axis of the endoscope is the same as the extension direction of the inner circle channel, and the optical axis of the endoscope passes through the rotation center of the inner circle channel; and A moving mechanism, the annular workpiece is mounted on the moving mechanism, the moving mechanism comprises a turntable, the annular workpiece can move between the first inspection station and the second inspection station along with the turntable, and the moving mechanism can also move the annular workpiece to the third inspection station.

2. The shape detection device according to claim 1, characterized in that: The shape detection device also includes a processor, which is electrically connected to the multiple cameras and is used to process images acquired by the multiple cameras.

3. The shape detection device according to claim 2, characterized in that: It also includes an indicator light, which is electrically connected to the processor. When the detection result of the annular workpiece is qualified, the indicator light displays a qualified signal; when the detection result of the annular workpiece is unqualified, the indicator light displays an unqualified signal.

4. The shape detection device according to claim 1, characterized in that: The first detection component also includes a carrier, a through hole is opened at the rotation center of the turntable, the carrier is inserted into the through hole, and there is a gap between the carrier and the hole wall of the through hole; at least one camera is arranged on the carrier.

5. The shape detection device according to claim 1, characterized in that: The multiple cameras include a first camera, the extension direction of the optical axis of the first camera is parallel to the extension direction of the inner ring channel, and the optical axis of the first camera is colinear with the rotation center line of the inner ring channel.

6. The shape detection device according to claim 1, characterized in that: The plurality of cameras include a second camera, a third camera, a fourth camera and a fifth camera that are evenly distributed at intervals, and the second camera, the third camera, the fourth camera and the fifth camera are all focused on the first inspection station.

7. The shape detection device according to claim 1, characterized in that: The first detection component also includes a first light source, and the first light source faces the first detection station.

8. The shape detection device according to claim 1, characterized in that: The first detection component also includes a plurality of first adjustment structures, the number of the first adjustment structures corresponds to the number of the cameras, and the plurality of cameras are disposed on the plurality of first adjustment structures in a one-to-one correspondence.

9. The shape detection device according to claim 8, characterized in that: The first adjustment structure includes a first adjustment device, which includes a first slide rail and a first slide table that slidably cooperates with the first slide rail. The camera is arranged on the first slide table. When the first slide table moves relative to the first slide rail, the distance between the camera and the first inspection station can be adjusted.

10. The shape detection device according to claim 9, characterized in that: The first adjustment device also includes a first adjustment handle and a first clamping member. The first adjustment handle is connected to the first slide, and the first adjustment handle can be used to control the first slide to slide relative to the first slide rail. The first clamping member is arranged on the first slide, and the first clamping member is used to fix the first slide relative to the first slide rail.

11. The shape detection device according to claim 9, characterized in that: The first adjustment structure also includes a first control device, which includes a mounting plate, on which the camera is mounted, and which is rotatably connected to the first slide. When the mounting plate rotates relative to the first slide, the optical axis of the camera can face the annular workpiece.

12. The shape detection device according to claim 11, characterized in that: The first control device also includes a marking member, one side of the marking member is connected to the first slide, and the other side of the marking member is rotatably connected to the mounting plate. A first mark is provided on the marking member, and a second mark corresponding to the first mark is provided on the mounting plate. The second mark cooperates with the first mark to determine the position of the mounting plate relative to the marking member.

13. The shape detection device according to claim 1, characterized in that: The second adjustment device includes a line scanning drive, a second slide rail and a second slide table slidingly matched with the second slide rail. The scanning component is connected to the second slide table. The scanning component includes a first line scanning station and a second line scanning station. The line scanning drive can drive the scanning component to move between the first line scanning station and the second line scanning station relative to the second slide rail along with the second slide table.

14. The shape detection device according to claim 13, characterized in that: The extending direction of the second slide rail is the tangent direction of the turntable.

15. The shape detection device according to claim 13, characterized in that: The scanned piece at the first line scan station has a first projection on the plane where the moving mechanism is located; the scanned piece at the second line scan station has a second projection on the plane where the moving mechanism is located, and the first projection and the second projection are respectively located on both sides of the second detection station.

16. The shape detection device according to claim 1, characterized in that: The third detection component also includes a third adjustment device, which includes a third slide rail and a third slide table slidably matched with the third slide rail. The endoscope is arranged on the third slide table. When the third slide table moves relative to the third slide rail, the distance between the endoscope and the third detection station can be adjusted.

17. The shape detection device according to claim 16, characterized in that: The third adjustment device includes a second adjustment handle and a second clamping member. The second adjustment handle is connected to the third slide, and the third slide can be controlled to slide relative to the third slide rail through the second adjustment handle; the second clamping member is arranged on the third slide, and the second clamping member is used to fix the third slide relative to the third slide rail.

18. The shape detection device according to claim 1, characterized in that: When the annular workpiece is at the third inspection station, the distance between the end of the endoscope close to the third inspection station and the annular workpiece does not exceed 100 mm.

19. The shape detection device according to claim 1, characterized in that: The third detection component also includes a second light source, and the second light source faces the third detection station.

20. The shape detection device according to claim 1, characterized in that: The moving mechanism is provided with a plurality of fixed jigs which are evenly distributed at intervals. The fixed jigs are provided with receiving grooves which match the shape of the annular workpiece, and the annular workpiece is arranged in the receiving grooves.

21. The shape detection device according to claim 1, characterized in that: It also includes a calibration device, the moving mechanism also includes a turntable driver, and the turntable driver can drive the turntable; the calibration device is electrically connected to the turntable driver, and the turntable is provided with a reference member that cooperates with the calibration device; If the annular workpiece does not reach the first inspection station, the second inspection station or the third inspection station, the calibration device can issue a reminder.

22. A shape detection method, used in the shape detection device according to any one of claims 1 to 21, to detect the shape of an annular workpiece, characterized in that: The shape detection method includes a camera detection step, and the camera detection step includes: S11: moving the annular workpiece to the first inspection station; S12: controlling a plurality of cameras to capture images of different positions of the annular workpiece; S13: transmitting the images captured by the plurality of cameras to a processor; S14: The processor integrates the images taken by the multiple cameras, and analyzes whether the structure of the annular workpiece in the integrated image is qualified.

23. The shape detection method according to claim 22, characterized in that: The method further includes step S20 after step S14: when the image captured by the first detection component is not clear, moving the annular workpiece to a third detection station for endoscopic detection.

24. The shape detection method according to claim 23, characterized in that: The steps of the endoscopic detection include: S21: moving the annular workpiece to a third inspection station; S22: photographing the overall structure of the annular workpiece through an endoscope; S23: transmitting the endoscope's photographing result to a processor; S24: The processor analyzes whether the structure of the annular workpiece in the endoscope-photographed image is qualified.

25. The shape detection method according to claim 22, characterized in that: The shape detection method also includes a line scanning detection step: S31: moving the annular workpiece to the second inspection station; S32: The scanning part scans the inner diameter of the annular workpiece; S33: transmitting the scan result of the scanned document to the processor; S34: The processor analyzes the scanning result and determines whether the inner diameter of the annular workpiece is qualified.

26. The shape detection method according to claim 25, characterized in that: In step S32, the annular workpiece stops moving for 1-5 seconds, and the scanning component linearly scans the annular workpiece at a uniform speed.

Images