Joint appearance inspection equipment and inspection method

Abstract

The present invention provides a joint appearance detection device and a detection method thereof, and belongs to the technical field of automobile parts processing. The present invention is provided with a feeding component, a boss end face detection component, a misaligned tooth detection component, a thread detection component, a groove detection component, a line scanning component, a casing bottom foreign body detection component and a discharging component in sequence around the turntable along its rotation direction, which can respectively realize the detection of the appearance features such as holes, faces, grooves, threads, etc. on the joint to be detected, and judge whether it is a qualified product by comparing with the pre-stored qualified image data, so as to meet the detection requirements of the joint appearance, ensure the quality of the produced joint, and also realize automatic feeding, detection and unloading, save labor, and have higher detection efficiency. The product qualification standard is the pre-stored image data, which ensures the uniformity of the detection standard, higher detection accuracy, and also ensures the uniformity of the joints produced in the same batch, better meeting the large-scale production needs of the enterprise.

Description

Technical Field

[0001] The invention relates to the technical field of automobile parts processing, and in particular to joint appearance detection equipment and a detection method thereof. Background Art

[0002] There are many auto parts, and different parts work together to ensure the normal operation of the car. Each part has its own unique function. Therefore, the quality of each part needs to be guaranteed.

[0003] As the main structural parts in the automobile pipeline system, pipe joints can meet the needs of pipeline connection. In addition, many joints have not only internal and external threads, but also internal and external grooves and protruding plug-in structures. Therefore, it is necessary to detect the surface appearance of the joints to ensure that the processed joints meet the use requirements. However, due to the complex structure of existing joints, they are usually inspected manually, which is not only inefficient, but also has different judgment standards and large detection errors, resulting in poor uniformity of joints produced in the same batch, which is difficult to meet the large-scale production needs of enterprises. Summary of the invention

[0004] In view of the above-mentioned problems existing in the prior art, the present invention aims to provide a joint appearance inspection device and a method thereof, so that a plurality of inspection stations are arranged at intervals along the circumference of the turntable, and the inspection stations include a boss end face inspection component, a misaligned tooth detection component, a thread detection component, a groove inspection component, a line scanning component and a casing bottom foreign body detection component, so as to realize the inspection of holes, surfaces, grooves and threads on the butt joint, meet the requirements of joint appearance inspection, and thus ensure the quality of the joint. At the same time, a loading component and an unloading component are also provided to meet the requirements of automatic work, improve the inspection efficiency, and unify the inspection standards, thereby avoiding the problem of large errors in inspection, ensuring the uniformity of joints produced in the same batch, improving the quality of joint production, and meeting the large-scale production needs of enterprises.

[0005] The specific technical solutions are as follows:

[0006] The joint appearance inspection equipment has the following features:

[0007] A turntable is rotatably arranged on the frame, and a plurality of clamping parts are arranged at intervals on the edge of the turntable;

[0008] A feeding assembly is arranged on the frame, and one end of the feeding assembly extends out of the frame;

[0009] The boss end face detection assembly includes an end face detection camera, which is mounted above the turntable and corresponds to each fixture in sequence when the turntable rotates. At the same time, the detection end of the end face detection camera is arranged vertically toward the fixture;

[0010] The misaligned tooth detection assembly is arranged on the frame, and along the rotation direction of the turntable, the misaligned tooth detection assembly is located behind the boss end surface detection assembly, and the misaligned tooth detection assembly includes a misaligned tooth camera, which is arranged above the turntable and corresponds to each clamping member in sequence during the rotation of the turntable;

[0011] A thread detection assembly, which is arranged on the frame and is located behind the misaligned tooth detection assembly along the rotation direction of the turntable, and includes a thread camera, which is mounted above the turntable and corresponds to each clamping member in sequence during the rotation of the turntable;

[0012] The slot inspection assembly is arranged on the frame and is located behind the thread inspection assembly along the rotation direction of the turntable, and includes a slot inspection camera, which is mounted above the outer side of the turntable and arranged toward the clamping piece, and in the process of the turntable rotating, the slot inspection camera corresponds to each clamping piece in sequence;

[0013] A line scanning assembly is arranged on the frame and is located behind the inspection slot assembly along the rotation direction of the turntable, and includes a line scanning camera and a turntable. Both the line scanning camera and the turntable are located on the frame and beside the turntable. Meanwhile, the line scanning camera is arranged toward the turntable.

[0014] A casing bottom foreign body detection component, which is arranged on the frame and is located behind the line scanning component along the rotation direction of the turntable, and includes a casing bottom foreign body camera and a casing bottom foreign body inspection platform, the casing bottom foreign body inspection platform is arranged on the frame and is located on the side of the turntable away from the turntable, and the casing bottom foreign body camera is arranged on the frame and is mounted above the casing bottom foreign body inspection platform and is directly opposite to the casing bottom foreign body inspection platform;

[0015] A discharge assembly is arranged on the frame and is located beside the casing bottom foreign body detection assembly. The discharge assembly extends from the edge of the turntable toward the outside of the frame, and the discharge assembly passes beside the line scanning assembly and the casing bottom foreign body detection assembly in sequence.

[0016] It also includes a controller, and the turntable, feeding assembly, boss end face detection assembly, wrong tooth detection assembly, thread detection assembly, groove detection assembly, line scanning assembly and casing bottom foreign matter detection assembly are all electrically connected to the controller.

[0017] In the above-mentioned joint appearance inspection equipment, the slot inspection assembly also includes a slot inspection rotating member, which is installed on the frame and located at the bottom or side of the turntable, and the slot inspection rotating member selectively contacts the clamping member on the turntable.

[0018] The above-mentioned joint appearance inspection equipment, wherein the clamping part includes a rotating sleeve, a rotating rod and a socket, the rotating sleeve is installed on the turntable, the rotating rod is rotatably installed in the rotating sleeve and is coaxially arranged with the rotating sleeve, the upper end and the lower end of the rotating rod both extend out of the rotating sleeve, and the socket is arranged on the upper end of the rotating rod extending out of the turntable.

[0019] The above-mentioned joint appearance inspection equipment, wherein the feeding assembly includes a feeding slide, a feeding actuator and a feeding clamp, one end of the feeding slide is located at the outer edge of the turntable, and the other end of the feeding slide extends outside the frame, the feeding slide has a feeding slide plate that slides back and forth between its two ends, and a plurality of feeding positions are arranged on the feeding slide plate, the feeding actuator has a horizontal feeding actuator and a vertical feeding actuator, the horizontal feeding actuator is installed on the frame, the vertical feeding actuator is installed on the horizontal feeding actuator, and at the same time, the feeding clamp is installed on the vertical feeding actuator.

[0020] The above-mentioned joint appearance inspection equipment, wherein the boss end face inspection component and the thread inspection component also include an adjustment bracket and a ring-shaped light source, the adjustment bracket includes a horizontal slide and a vertical slide, the horizontal slide is fixedly installed on the frame, the vertical slide is vertically installed on the horizontal slide, the outer side of the ring-shaped light source is installed on the corresponding vertical slide, the ring-shaped light source is sleeved on the outer side of the clamp and located above the clamp, the end face inspection camera and the thread camera are respectively installed on the corresponding vertical slide and are both located above the corresponding ring-shaped light source, and the end face inspection camera and the thread camera are both on the axis of the corresponding ring-shaped light source.

[0021] The above-mentioned joint appearance inspection equipment, wherein the misaligned tooth detection component and the sleeve bottom foreign body detection component also include an adjusting part and a diffuse light plate, the adjusting part includes a horizontal adjusting part and a vertical adjusting part, the horizontal adjusting part is fixedly mounted on the frame, the vertical adjusting part is vertically mounted on the horizontal adjusting part, the outer side of the diffuse light plate is mounted on the corresponding vertical adjusting part, the diffuse light plate is a spherical cover structure, the diffuse light plate of the misaligned tooth detection component is arranged toward the clamping part, the diffuse light plate of the sleeve bottom foreign body detection component is arranged toward the sleeve bottom foreign body inspection platform, and a through hole is opened in the center of the diffuse light plate, the misaligned tooth camera and the sleeve bottom foreign body camera are respectively mounted on the corresponding vertical adjusting parts and located above the corresponding diffuse light plates, and the misaligned tooth camera and the sleeve bottom foreign body camera are respectively facing the through holes on the corresponding diffuse light plates.

[0022] The above-mentioned joint appearance inspection equipment, wherein the inspection slot assembly also includes a slot inspection movable bracket and a light-emitting board, the slot inspection movable bracket includes a horizontal movable bracket and a vertical movable bracket, the horizontal movable bracket is fixed on the frame, and the vertical movable bracket is installed on the horizontal movable bracket. At the same time, the slot inspection camera and the light-emitting board are both installed on the vertical movable bracket and the two are respectively located on both sides of the clamp.

[0023] The above-mentioned joint appearance inspection equipment, wherein the line scanning assembly also includes a line scanning moving part and a line scanning light source, the line scanning camera and the line scanning light source respectively correspond to a line scanning moving part, and the line scanning moving part includes a horizontal moving part and a vertical moving part, the horizontal moving part is arranged on the frame, the vertical moving part is arranged on the horizontal moving part, the line scanning camera and the line scanning light source are respectively installed on the corresponding vertical moving parts, and the line scanning light source is arranged toward the turntable.

[0024] In the above-mentioned joint appearance inspection equipment, the unloading assembly includes a transfer structure, a flip structure, a unloading structure and a receiving structure, and,

[0025] The transfer structure includes a horizontal moving group, a vertical moving group and a transfer clamp, the horizontal moving group is slidably arranged on the frame, the vertical moving group is installed on the horizontal moving group, and the transfer clamp is installed on the vertical moving group;

[0026] The flipping structure includes a flipping driver and a flipping clamp, wherein the flipping driver is arranged on the vertical moving group, and the flipping clamp is installed on the driving shaft of the flipping driver;

[0027] The unloading structure includes an unloading slide, an unloading actuator and an unloading claw. The unloading slide is horizontally arranged on the frame. The unloading actuator is slidably arranged on the unloading slide and moves away from or close to the foreign body inspection table at the bottom of the casing. The unloading claw is installed on the unloading actuator.

[0028] The material receiving structure comprises a plurality of material receiving bins, and the plurality of material receiving bins are arranged in parallel along the arrangement direction of the unloading slide.

[0029] The detection method of the joint appearance detection device has the following characteristics: the joint appearance detection device is the above-mentioned joint appearance detection device, and the detection method includes the following steps:

[0030] Step S1, data input;

[0031] Pre-storing the image data of the boss end face inclination angle, the staggered tooth image data, the thread image data, the surface groove image data, the surface line scan image data and the casing bottom image data of a batch of joints in the controller;

[0032] Step S2, loading;

[0033] Place the joint to be tested on the loading position of the loading slide, and start the loading actuator to drive the loading claw to clamp the joint to be tested on the loading position and place it on a clamping piece on the turntable;

[0034] Step S3, boss end surface detection;

[0035] The turntable rotates a predetermined angle, rotates the fixture clamping the joint to be inspected to the end face inspection camera of the boss end face inspection assembly, starts the end face inspection camera and the annular light source corresponding to the end face inspection camera, transmits the captured image data to the controller and compares it with the pre-stored boss end face inclination angle image data, determines the difference between the two image data, and if there is no difference or the difference is small, proceeds to step S4, and if the difference is large, proceeds to step S9;

[0036] Step S4, wrong tooth detection;

[0037] The turntable continues to rotate by a predetermined angle, and rotates the joint passing through step S3 to the misaligned tooth camera of the misaligned tooth detection component, and starts the misaligned tooth camera and the corresponding diffuse light plate, and transmits the captured image data to the controller and compares it with the pre-stored misaligned tooth image data to determine the difference between the two image data. If there is no difference or the difference is small, proceed to step S5, and if the difference is large, proceed to step S9;

[0038] Step S5, thread detection;

[0039] The turntable continues to rotate at a predetermined angle, and the joint that has passed step S4 is rotated to the thread camera of the thread detection component, and the thread camera and the ring light source corresponding to the thread camera are started, and the captured image data is transmitted to the controller and compared with the pre-stored thread image data to determine the difference between the two image data. If there is no difference or the difference is small, step S6 is performed, and if the difference is large, step S9 is performed;

[0040] Step S6, slot type detection;

[0041] The turntable continues to rotate by a predetermined angle, rotates the joint after step S5 to the slot inspection camera of the slot inspection assembly, and starts the slot inspection camera and the light-emitting board corresponding to the slot inspection camera. At the same time, the slot inspection rotating member is controlled to contact the clamping member where the joint is located and start the slot inspection rotating member, transmits the captured image data to the controller and compares it with the pre-stored surface slot image data, and determines the difference between the two image data. If there is no difference or the difference is small, proceed to step S7, and if the difference is large, proceed to step S9;

[0042] Step S7, line scan detection;

[0043] The turntable continues to rotate at a predetermined angle, and the transfer structure of the unloading assembly is started. The joint after step S6 is transferred to the turntable through the transfer clamp, and the line scan camera and the line scan light source are started. At the same time, the turntable is controlled to rotate, and the captured image data is transmitted to the controller and compared with the pre-stored line scan image data to determine the difference between the two image data. If there is no difference or the difference is small, step S8 is performed. If the difference is large, step S9 is performed.

[0044] Step S8, detecting foreign matter at the bottom of the casing;

[0045] The turntable continues to rotate at a predetermined angle, and the transfer structure and the flipping structure of the unloading assembly are started. The joint that has passed step S7 is transferred from the turntable to the foreign matter inspection table at the bottom of the casing by the flipping claw. At the same time, the joint is flipped and turned around by the flipping claw, and the foreign matter camera at the bottom of the casing and the corresponding diffuse light plate are started. The captured image data is transmitted to the controller and compared with the pre-stored image data of the bottom of the casing to determine the difference between the two image data. If there is no difference or the difference is small, or if the difference is large, step S9 is performed;

[0046] Step S9, unloading;

[0047] The turntable continues to rotate a preset angle, and the transfer structure, flipping structure and unloading structure of the unloading assembly are started. The joint is transferred from the clamp on the turntable to the turntable through the transfer structure. At the same time, the joint is transferred from the turntable to the foreign object inspection table at the bottom of the casing through the flipping structure and the joint is flipped and turned around. The unloading structure is then started to transfer the joint on the foreign object inspection table at the bottom of the casing to the corresponding receiving bin.

[0048] The positive effects of the above technical solution are:

[0049] The above-mentioned joint appearance inspection equipment and inspection method, by arranging a loading component, a boss end face inspection component, a misaligned tooth detection component, a thread detection component, a groove inspection component, a line scanning component, a casing bottom foreign matter detection component and a unloading component around the turntable along its rotation direction, can successively realize the inspection of the shapes and surface features such as holes, surfaces, grooves, threads, etc. on the joint to be inspected, meet the inspection needs of the joint appearance, and ensure that the produced joints can meet the production requirements. At the same time, it also realizes automatic loading, unloading and inspection, saves labor, improves inspection efficiency, and can judge by comparing with stored image data, ensuring unified inspection standards, effectively avoiding the problem of large errors in inspection, ensuring the uniformity of joints produced in the same batch, ensuring the quality of the produced joints, and better meeting the large-scale production needs of enterprises. BRIEF DESCRIPTION OF THE DRAWINGS

[0050] Figure 1 A structural diagram of an embodiment of a joint appearance detection device of the present invention;

[0051] Figure 2 It is a structural diagram of a feeding assembly of a preferred embodiment of the present invention;

[0052] Figure 3 It is a structural diagram of a boss end surface detection assembly of a preferred embodiment of the present invention;

[0053] Figure 4A structural diagram of a misaligned tooth detection assembly according to a preferred embodiment of the present invention;

[0054] Figure 5 A structural diagram of a thread detection assembly according to a preferred embodiment of the present invention;

[0055] Figure 6 A structural diagram of a slot inspection assembly according to a preferred embodiment of the present invention;

[0056] Figure 7 A structural diagram of a line scanning assembly according to a preferred embodiment of the present invention;

[0057] Figure 8 It is a structural diagram of a casing bottom foreign body detection assembly according to a preferred embodiment of the present invention;

[0058] Fig. 9 It is a structural diagram of a discharge assembly of a preferred embodiment of the present invention.

[0059] Fig.10 A structural diagram of a clamping member according to a preferred embodiment of the present invention;

[0060] Fig.11 The present invention is a flow chart of the detection method of the joint appearance detection device.

[0061] In the attached drawings: 1. turntable; 11. frame; 12. clamping part; 121. rotating sleeve; 122. rotating rod; 123. socket; 2. feeding assembly; 21. feeding slide; 22. feeding actuator; 23. feeding clamp; 211. feeding slide; 221. horizontal feeding actuator; 222. vertical feeding actuator; 3. boss end face detection assembly; 31. end face detection camera; 32. adjustment bracket; 33. ring light source; 321. horizontal slide; 322. vertical slide; 4. wrong tooth detection assembly; 41. wrong tooth camera; 42. adjustment part; 43. diffuse light plate; 421. horizontal adjustment part; 422. vertical adjustment part; 5. thread detection assembly; 51. thread camera; 6. slot inspection assembly; 61. slot inspection camera; 62. slot inspection rotating part; 63. Inspection slot moving bracket; 64. Light-emitting board; 631. Horizontal moving bracket; 632. Vertical moving bracket; 7. Line scanning assembly; 71. Line scanning camera; 72. Turntable; 73. Line scanning moving part; 74. Line scanning light source; 731. Horizontal moving part; 732. Vertical moving part; 8. Foreign matter detection assembly at the bottom of casing; 81. Foreign matter camera at the bottom of casing; 82. Foreign matter inspection platform at the bottom of casing; 9. Unloading assembly; 91. Transfer structure; 92. Flipping structure; 93. Unloading structure; 94. Receiving structure; 911. Horizontal moving group; 912. Vertical moving group; 913. Transfer clamp; 921. Flipping drive; 922. Flipping clamp; 931. Unloading slide; 932. Unloading actuator; 933. Unloading clamp; 941. Receiving bin. DETAILED DESCRIPTION

[0062] In order to make the technical means, creative features, objectives and effects of the present invention easier to understand, the following embodiments are combined with the attached Figure 1 To Attachment Fig.11 The technical solution provided by the present invention is described in detail, but the following content is not intended to limit the present invention.

[0063] Figure 1 FIG. 1 is a structural diagram of an embodiment of the joint appearance detection device of the present invention. Figure 1 As shown, the joint appearance inspection equipment provided in this embodiment includes: a frame 11, a turntable 1, a feeding assembly 2, a boss end face inspection assembly 3, a misaligned tooth detection assembly 4, a thread detection assembly 5, a groove inspection assembly 6, a line scanning assembly 7, a casing bottom foreign matter detection assembly 8, a unloading assembly 9 and a controller.

[0064] Specifically, the turntable 1 is rotatably installed on the frame 11, so that the turntable 1 can rotate on the frame 11. At the same time, a plurality of clamping members 12 are arranged at intervals on the edge of the turntable 1, so that when the turntable 1 rotates, the position of the clamping members 12 can change, thereby providing conditions for the joints to be inspected that are subsequently clamped by the clamping members 12 to pass through different inspection stations in sequence.

[0065] Figure 2 FIG. 1 is a structural diagram of a feeding assembly of a preferred embodiment of the present invention. Figure 1 and Figure 2 As shown, the loading component 2 is arranged on the frame 11. At this time, one end of the loading component 2 extends out of the frame 11, which is convenient for transporting the joint to be tested to the frame 11, and the joint to be tested is clamped to the clamping part 12 on the turntable 1 through the loading component 2 to realize automatic loading.

[0066] Figure 3 It is a structural diagram of a boss end surface detection component of a preferred embodiment of the present invention. Figure 1 and Figure 3 As shown, the boss end face detection assembly 3 also includes an end face detection camera 31. At this time, the end face detection camera 31 frame 11 is arranged above the turntable 1, and when the turntable 1 rotates, the end face detection camera 31 can correspond to each clamp 12 in sequence, so that the joints to be detected can all pass through the boss end face detection assembly 3 and be detected by the boss end face detection assembly 3. At the same time, the detection end of the end face detection camera 31 is arranged vertically toward the clamp 12, so that the joints to be detected on the clamp 12 passing through the end face detection camera 31 can be detected to determine whether the end face of the boss of the joint meets the product requirements.

[0067] Figure 4 FIG. 1 is a structural diagram of a misaligned tooth detection assembly according to a preferred embodiment of the present invention. Figure 1 and Figure 4 As shown, the misaligned tooth detection component 4 is arranged on the frame 11, and along the rotation direction of the turntable 1, the misaligned tooth detection component 4 is located behind the boss end face detection component 3, so that the joint after the boss end face detection can be moved to the misaligned tooth detection component 4. At this time, the misaligned tooth detection component 4 also includes a misaligned tooth camera 41, and the misaligned tooth phase is set above the turntable 1, and during the rotation of the turntable 1, the misaligned tooth camera 41 can correspond to each clamp 12 in sequence, that is, the misaligned tooth detection is realized on one end of the joint to be detected through the misaligned tooth camera 41, ensuring that it can meet the use requirements. It is worth pointing out that if the joint to be detected fails the boss end face detection, the misaligned tooth detection component 4 and the subsequent thread detection component 5, the groove detection component 6, the line scanning component 7 and the casing bottom foreign body detection component 8 will not operate, and it will only be transported to the corresponding receiving bin 941 through the unloading component 9.

[0068] Figure 5 FIG. 1 is a structural diagram of a thread detection assembly according to a preferred embodiment of the present invention. Figure 1 and Figure 5 As shown, the thread detection component 5 is arranged on the frame 11, and along the rotation direction of the turntable 1, the thread detection component 5 is located behind the misaligned tooth detection component 4, so that the joint after the misaligned tooth detection can continue to be detected by the thread detection component 5. At this time, the thread detection component 5 also includes a thread camera 51, and the thread camera 51 frame 11 is arranged above the turntable 1, and during the rotation of the turntable 1, the thread camera 51 can correspond to each clamp 12 in sequence, that is, the thread on the joint to be detected is detected by the thread camera 51 to ensure that the thread on it can meet the use requirements. It is worth pointing out that if the joint to be detected fails the misaligned tooth detection, the thread detection component 5, the inspection groove component 6, the line scanning component 7 and the foreign body detection component 8 at the bottom of the casing will not operate, and it will only be transported to the corresponding receiving bin 941 through the unloading component 9.

[0069] Figure 6 FIG. 1 is a structural diagram of a slot inspection assembly according to a preferred embodiment of the present invention. Figure 1 and Figure 5As shown, the groove inspection component 6 is arranged on the frame 11, and the groove inspection component 6 is located behind the thread detection component 5 in the direction of rotation of the turntable 1, so that the groove on the joint after the thread detection can be inspected by the groove inspection component 6. At this time, the groove inspection component 6 also includes a groove inspection camera 61, and the groove inspection camera 61 frame 11 is arranged above the outer side of the turntable 1 and arranged toward the clamping part 12, and during the rotation of the turntable 1, the groove inspection camera 61 corresponds to each clamping part 12 in sequence, that is, the shape and surface data of the groove on the surface of the joint to be inspected are inspected by the groove inspection camera 61 to ensure that the groove on it can meet the use requirements. It is worth pointing out that if the joint to be inspected fails the thread inspection, the groove inspection component 6, the line scanning component 7 and the foreign body detection component 8 at the bottom of the casing will not operate, and it will only be transported to the corresponding receiving bin 941 through the unloading component 9.

[0070] Figure 7 FIG. 1 is a structural diagram of a line scanning assembly of a preferred embodiment of the present invention. Figure 1 and Figure 7 As shown, the line scanning assembly 7 is arranged on the frame 11, and, in the direction of rotation of the turntable 1, the line scanning assembly 7 is located behind the groove inspection assembly 6, so that the joints inspected by the groove inspection assembly 6 can continue to be surface-grooved by the line scanning assembly 7. At this time, the line scanning assembly 7 also includes a line scanning camera 71 and a turntable 72, and the line scanning camera 71 and the turntable 72 are both arranged on the frame 11, and the line scanning camera 71 and the turntable 72 are both located beside the turntable 1. At the same time, the line scanning camera 71 is arranged toward the turntable 72, so that the joints after the groove inspection can be transferred from the clamping part 12 on the turntable 1 to the turntable 72 by the unloading assembly 9, and the turntable 72 drives the joints to be inspected to rotate. At the same time, the line scanning camera 71 performs a full-scale scan of the appearance of the joints to be inspected, so as to determine whether the appearance characteristics of the joints meet the production requirements. It is worth pointing out that if the joint to be inspected fails the inspection in the inspection groove, the line scanning component 7 and the foreign body detection component 8 at the bottom of the casing will not operate, and it will only be transferred to the corresponding receiving bin 941 through the unloading component 9.

[0071] Figure 8 FIG. 1 is a structural diagram of a casing bottom foreign body detection assembly according to a preferred embodiment of the present invention; Figure 1 and Figure 8As shown, the casing bottom foreign matter detection component 8 is arranged on the frame 11, and, in the rotation direction of the turntable 1, the casing bottom foreign matter detection component 8 is located behind the line scanning component 7, so that the joint after the line scanning can be detected for casing bottom foreign matter by the casing bottom foreign matter detection component 8. At this time, the unloading component 9 transfers the joint after the line scanning to the casing bottom foreign matter detection component 8 and turns the joint over to realize the casing bottom foreign matter detection of the bottom of the joint to be detected. In addition, the casing bottom foreign body detection component 8 includes a casing bottom foreign body camera 81 and a casing bottom foreign body detection table 82. The casing bottom foreign body detection table 82 is set on the frame 11 and located on the side of the turntable 72 away from the turntable 1, that is, the joint after line scanning can be transferred to the casing bottom foreign body detection table 82. At the same time, the casing bottom foreign body camera 81 is set on the frame 11 and is set above the casing bottom foreign body detection table 82 and directly opposite to the casing bottom foreign body detection table 82, so that the casing bottom foreign body camera 81 can detect the casing bottom foreign body of the joint placed on the casing bottom foreign body detection table 82, ensuring that there is no foreign matter in the casing at the bottom of the joint, which can meet the production needs. It is worth pointing out that if the joint to be detected fails the line scanning detection, the casing bottom foreign body detection component 8 will not operate, and it will only be transferred to the corresponding receiving bin 941 through the unloading component 9.

[0072] Fig. 9 FIG. 1 is a structural diagram of a discharge assembly of a preferred embodiment of the present invention. Figure 1 and Fig. 9 As shown, the unloading component 9 is arranged on the frame 11 and is located beside the foreign matter detection component 8 at the bottom of the casing, and the unloading component 9 extends from the edge of the turntable 1 toward the outside of the frame 11. At the same time, the unloading component 9 passes by the side of the line scanning component 7 and the foreign matter detection component 8 at the bottom of the casing in turn, that is, the unloading component 9 can realize the connection between the turntable 1 and the outside of the frame 11, and realize the transfer of the joint between the line scanning component 7, the foreign matter detection component 8 at the bottom of the casing and the receiving bin 941, so as to meet the detection and unloading requirements, and the structural design is more reasonable.

[0073] More specifically, a controller is also provided on the frame 11. At this time, the controller is electrically connected to the turntable 1, the feeding component 2, the boss end face detection component 3, the misaligned tooth detection component 4, the thread detection component 5, the groove inspection component 6, the line scanning component 7 and the foreign matter detection component 8 at the bottom of the casing. The controller can control the operation of the turntable 1, the feeding component 2, the boss end face detection component 3, the misaligned tooth detection component 4, the thread detection component 5, the groove inspection component 6, the line scanning component 7 and the foreign matter detection component 8 at the bottom of the casing, and can also compare the captured image data with the pre-stored image data, so as to meet the all-round detection of the joint appearance, realize the automated operation of the detection, save labor, improve the detection efficiency, and also ensure the uniformity of the detection standards of the joints in the same batch, ensure the quality of the joints, and meet the needs of large-scale production.

[0074] More specifically, since the groove on the surface of the joint is usually an annular structure around its circumference, the groove inspection assembly 6 is also provided with a groove inspection rotating member 62. Preferably, the groove inspection rotating member 62 is a rotating motor, which is installed on the frame 11 and located at the bottom or side of the turntable 1. At the same time, the groove inspection rotating member 62 can selectively contact the clamping member 12 on the turntable 1, that is, the contact with the clamping member 12 is achieved by moving the groove inspection rotating member 62 on the frame 11, so that when the groove on the joint is inspected, the clamping member 12 can be driven to rotate on the turntable by the groove inspection rotating member 62, thereby realizing the detection of the annular groove and better meeting the detection requirements.

[0075] Fig.10 FIG. 1 is a structural diagram of a clamping member of a preferred embodiment of the present invention. Figure 1 and Fig.10 As shown, the clamping member 12 on the turntable 1 includes a rotating sleeve 121, a rotating rod 122 and a socket 123. At this time, the rotating sleeve 121 is installed on the turntable 1 to realize the installation on the turntable 1. At the same time, the rotating rod 122 is rotatably installed in the rotating sleeve 121 and arranged coaxially with the rotating sleeve 121, so that the rotating rod 122 can rotate in the rotating sleeve 121, that is, the rotation of the rotating rod 122 on the turntable 1 is realized, and the upper end and the lower end of the rotating rod 122 are extended out of the rotating sleeve 121, so that the two ends of the rotating rod 122 can be rearwardly moved. The socket 123 can have a large enough area to cooperate with other structures, and the socket 123 is arranged on the upper end of the rotating rod 122 extending out of the turntable 1, so that when the clamping member 12 is driven to rotate by the inspection groove rotating member 62, the rotating shaft of the inspection groove rotating member 62 can contact the lower end of the rotating rod 122 and drive the rotating rod 122 to rotate, thereby driving the socket 123 to rotate, meeting the use requirement of the clamping member 12 rotating on the turntable 1. At the same time, the socket 123 facilitates the clamping of the joint to be detected, and the structural design is more reasonable.

[0076] More specifically, the loading assembly 2 includes a loading slide 21, a loading actuator 22, and a loading clamp 23. At this time, one end of the loading slide 21 is located at the outer edge of the turntable 1, and the other end of the loading slide 21 extends to the outside of the frame 11, that is, the connection between the turntable 1 and the space outside the frame 11 is realized through the loading slide 21, which meets the transportation requirements. At the same time, the loading slide 21 has a loading slide plate 211 that slides back and forth between its two ends. Preferably, the two ends of the loading slide 21 are respectively provided with a driving motor and a roller, and a transmission belt is provided between the driving motor and the roller. One side of the loading slide plate 211 is connected to the transmission belt, and the loading slide plate 211 can be driven by the driving motor to reciprocate at the two ends of the loading slide 21. In addition, a plurality of loading positions are provided on the loading slide plate 211, and the placement of multiple joints to be detected is realized through the plurality of loading positions, thereby improving the loading efficiency. At the same time, the feeding actuator 22 has a horizontal feeding actuator 221 and a vertical feeding actuator 222, and the horizontal feeding actuator 221 is installed on the frame 11, and the vertical feeding actuator 222 is installed on the horizontal feeding actuator 221, and the feeding clamp 23 is installed on the vertical feeding actuator 222 so that the feeding clamp 23 can move horizontally on the frame 11 and can also move up and down, so as to facilitate the transfer of the joint to be detected on the feeding position to the clamp 12 on the turntable 1. It is worth pointing out that the horizontal feeding actuator 221 and the vertical feeding actuator 222 both include guide rails, slide plates and telescopic cylinders, the slide plates are slidably arranged on the guide rails, and the movement of the slide plates on the guide rails is realized by the telescopic cylinders.

[0077] More specifically, the boss end face detection assembly 3 and the grain detection assembly also include an adjustment bracket 32 ​​and an annular light source 33. At this time, the adjustment bracket 32 ​​includes a horizontal slide 321 and a vertical slide 322. The horizontal slide 321 is fixedly mounted on the frame 11, and the vertical slide 322 is vertically mounted on the horizontal slide 321, so that the vertical slide 322 can move on the horizontal slide 321, and at the same time, the adjustment requirements of the vertical slide 322 on the frame 11 are met. At the same time, the outer side of the annular light source 33 is mounted on the corresponding vertical slide 322, so that the annular light source 33 can move on the vertical slide 322, and the position of the annular light source 33 in the horizontal and vertical directions is adjusted to meet the detection requirements of different products. In addition, the annular light source 33 is sleeved on the outer side of the clamp 12 and located above the clamp 12, so that the annular light source 33 can provide fill light for the joint to be detected clamped on the clamp 12, and meet the light requirements for subsequent shooting. At the same time, the end face detection camera 31 and the thread camera 51 are respectively installed on the corresponding vertical slide 322 and are both located above the corresponding annular light source 33, so that the end face detection camera 31 and the thread camera 51 can have the annular light source 33 to fill in the light between them and the joint to be detected, and the movement of the end face detection camera 31 and the thread camera 51 on the corresponding vertical slide 322 is also realized, which meets the position adjustment requirements of the end face detection camera 31 and the thread camera 51 and meets different detection requirements. In addition, the end face detection camera 31 and the thread camera 51 are both located on the axis of the corresponding annular light source 33, so that when shooting later, the annular light source 33 has the same fill in light effect on all parts around the joint to be detected, avoiding the difference in fill in light affecting the shooting effect of the end face detection camera 31 and the thread camera 51, and the structural design is more reasonable. It is worth pointing out that the horizontal slide 321 and the vertical slide 322 both include a guide rail and a slider, the slider is slidably arranged on the guide rail, and a locking structure is provided on the slider to meet the temporary fixation requirements of the slider on the guide rail.

[0078] More specifically, the misaligned tooth detection component 4 and the sleeve bottom foreign body detection component 8 also include an adjustment member 42 and a diffuse light plate 43. At this time, the adjustment member 42 includes a horizontal adjustment member 421 and a vertical adjustment member 422. The horizontal adjustment member 421 is fixedly mounted on the frame 11, realizing the installation on the frame 11, and the vertical adjustment member 422 is vertically mounted on the horizontal adjustment member 421. At the same time, the outer side of the diffuse light plate 43 is mounted on the corresponding vertical adjustment member 422, so that the diffuse light plate 43 can be adjusted in the horizontal and vertical directions under the action of the horizontal adjustment member 421 and the vertical adjustment member 422, thereby meeting the detection requirements of different products. In addition, the diffuse light plate 43 is a spherical cover structure. The diffuse light plate 43 of the misaligned tooth detection component 4 is arranged toward the fixture 12. In addition, the diffuse light plate 43 of the casing bottom foreign body detection component 8 is arranged toward the casing bottom foreign body inspection platform 82, so that the diffuse light plate 43 can cover the top of the joint to be detected, thereby meeting the subsequent shooting requirements. In addition, a through hole is opened in the center of the diffuse light plate 43. At the same time, the misaligned tooth camera 41 and the casing bottom foreign body camera 81 are respectively installed on the corresponding vertical adjustment member 422 and located above the corresponding diffuse light plate 43, so that the misaligned tooth camera 41 and the casing bottom foreign body camera 81 can also be adjusted in the horizontal and vertical directions to meet the shooting requirements of different products. In addition, the misaligned tooth camera 41 and the casing bottom foreign body camera 81 are respectively facing the corresponding through holes on the diffuse light plate 43, that is, the through holes on the diffuse light plate 43 provide shooting space for the misaligned tooth camera 41 and the casing bottom foreign body camera 81, and the structural design is more reasonable. It is worth pointing out that both the horizontal adjustment member 421 and the vertical adjustment member 422 include a guide rail and a slider. The slider is slidably disposed on the guide rail, and a locking structure is disposed on the slider to meet the need for temporarily fixing the position of the slider on the guide rail.

[0079] More specifically, the inspection slot assembly 6 also includes an inspection slot moving bracket 63 and a light-emitting board 64. At this time, the inspection slot moving bracket 63 includes a horizontal moving bracket 631 and a vertical moving bracket 632. The horizontal moving bracket 631 is fixed on the frame 11, so that it can be installed on the frame 11. In addition, the vertical moving bracket 632 is installed on the horizontal moving bracket 631. At the same time, the inspection slot camera 61 and the light-emitting board 64 are both installed on the vertical moving bracket 632, so that the inspection slot camera 61 and the light-emitting board 64 can be adjusted in the horizontal and vertical directions through the horizontal moving bracket 631 and the vertical moving bracket 632 to meet the shooting requirements of different products. In addition, the inspection slot camera 61 and the light-emitting board 64 are respectively located on both sides of the clamp 12, so that when the inspection slot camera 61 is shooting, the light-emitting board 64 can fill in the shooting direction, and more clearly show the outline of the groove of the joint to be detected, thereby improving the shooting effect. It is worth noting that the horizontal movable bracket 631 and the vertical movable bracket 632 both include guide rails and sliders. The sliders are slidably mounted on the guide rails, and a locking structure is provided on the sliders, which can not only meet the movement requirements of the sliders on the guide rails, but also meet the temporary fixation requirements of the sliders on the guide rails through the locking structure.

[0080] More specifically, the line scanning assembly 7 further includes a line scanning moving member 73 and a line scanning light source 74. At this time, the line scanning camera 71 and the line scanning light source 74 correspond to the line scanning moving member 73, that is, the position adjustment of the line scanning camera 71 and the line scanning light source 74 is realized respectively through the line scanning moving member 73. The line scanning moving member 73 further includes a horizontal moving member 731 and a vertical moving member 732. The horizontal moving member 731 is arranged on the frame 11, and the vertical moving member 732 is arranged on the horizontal moving member 731. The line scanning camera 71 and the line scanning light source 74 are respectively installed on the corresponding vertical moving member 732, that is, the horizontal moving member 731 and the vertical moving member 732 are used to adjust the position of the line scanning camera 71 and the line scanning light source 74 in the horizontal and vertical directions, so as to meet the line scanning requirements of different products. Furthermore, the line scanning light source 74 is arranged toward the turntable 72, that is, the line scanning light source 74 can provide fill light for the joint to be inspected on the turntable 72, providing conditions for the line scanning camera 71 to shoot the joint to be inspected. It is worth noting that the horizontal moving member 731 and the vertical moving member 732 both include a guide rail and a slider, the slider is slidably arranged on the guide rail, and a locking structure is arranged on the slider, which can not only meet the movement requirements of the slider on the guide rail, but also meet the temporary fixing requirements of the position of the slider on the guide rail through the locking structure.

[0081] More specifically, the unloading assembly 9 includes a transfer structure 91, a flipping structure 92, a unloading structure 93 and a material receiving structure 94, and the transfer structure 91 includes a horizontal moving group 911, a vertical moving group 912 and a transfer clamp 913. The horizontal moving group 911 is slidably arranged on the frame 11, and the vertical moving group 912 is installed on the horizontal moving group 911, so that the vertical moving group 912 can move in the horizontal plane through the horizontal moving group 911, and can also realize the lifting movement in the vertical direction by itself. At the same time, the transfer clamp 913 is installed on the vertical moving group 912, so that the transfer clamp 913 can move in the horizontal and vertical directions, thereby meeting the use requirement of transferring the joint from the clamping part 12 on the turntable 1 to the turntable 72.

[0082] In addition, the flipping structure 92 includes a flipping driver 921 and a flipping clamp 922. At this time, the flipping driver 921 is arranged on the vertical moving group 912, so that the flipping driver 921 can move in the horizontal and vertical directions at the same time, and the flipping clamp 922 is installed on the driving shaft of the flipping driver 921, so that the flipping clamp 922 can not only meet the movement requirements in the horizontal and vertical directions, but also meet the use requirements of transferring the joint from the turntable 72 to the foreign matter detection table 82 at the bottom of the casing, but also can flip in the vertical plane under the action of the flipping driver 921 to realize the flipping and turning of the joint, so that the joint can complete the turning operation when placed on the foreign matter detection table 82 at the bottom of the casing, providing conditions for the detection of foreign matters at the bottom of the casing of the joint.

[0083] In addition, the unloading structure 93 includes an unloading slide 931, an unloading actuator 932 and an unloading clamp 933. At this time, the unloading slide 931 is horizontally arranged on the frame 11, and the unloading actuator 932 is slidably arranged on the unloading slide 931, so that the unloading actuator 932 moves away from or close to the foreign body inspection table 82 at the bottom of the casing. Preferably, the unloading actuator 932 includes a slide plate, a rotary drive, a rotating wheel and a belt. The rotary drive and the rotating wheel are respectively arranged at both ends of the unloading slide 931, and the belt is wound between the rotary drive and the rotating wheel. The slide plate is slidably arranged on the unloading slide 931 and connected to the belt, so that the rotary drive can drive the slide plate to reciprocate on the unloading slide 931 through the belt to meet the use requirements of transportation. At the same time, the unloading clamp 933 is installed on the unloading actuator 932, so that the unloading clamp 933 can move with the slide plate, meeting the use requirements of the unloading clamp 933 to clamp and transport the joint from the foreign body inspection platform 82 at the bottom of the casing. It is worth pointing out that the height of the unloading clamp 933 is higher than the height of the flip clamp 922. At the same time, a lifting drive is provided at the bottom of the foreign body inspection platform 82 at the bottom of the casing, which can avoid the problem of mutual collision between the unloading clamp 933 and the flip clamp 922, and can also increase the height of the foreign body inspection platform 82 at the bottom of the casing through the lifting drive, so that the unloading clamp 933 is convenient for clamping the joint on the foreign body inspection platform 82 at the bottom of the casing, and the structural design is more reasonable.

[0084] In addition, the material collecting structure 94 includes a plurality of material collecting bins 941, which are arranged in parallel along the arrangement direction of the unloading slide 931. The plurality of material collecting bins 941 can be used to distinguish between defective products and qualified products detected in different inspection processes, thereby realizing the classification of defective products and the collection of qualified products, and facilitating processing.

[0085] Fig.11 FIG. 1 is a flow chart of the detection method of the joint appearance detection device of the present invention. Fig.11 As shown, this embodiment also provides a detection method of the above-mentioned joint appearance detection device, which specifically includes the following steps:

[0086] Step S1, data input;

[0087] The image data of the boss end face inclination angle, staggered tooth image data, thread image data, surface groove image data, surface line scan image data and casing bottom image data of the batch of joints are pre-stored in the controller, providing a reference basis for image comparison in the subsequent detection process;

[0088] Step S2, loading;

[0089] The joint to be tested is placed on the loading position of the loading slide 211, and the loading actuator 22 is started to drive the loading clamp 23 to clamp the joint to be tested on the loading position and place it on a clamping piece 12 on the turntable 1, which meets the use requirements of automatic loading and improves the processing efficiency;

[0090] Step S3, boss end surface detection;

[0091] The turntable 1 rotates to a predetermined angle, and rotates the clamping part 12 clamping the joint to be inspected to the end face inspection camera 31 of the boss end face inspection component 3, and starts the end face inspection camera 31 and the annular light source 33 corresponding to the end face inspection camera 31, and transmits the captured image data to the controller and compares it with the pre-stored boss end face inclination angle image data. If the end face of the boss is arranged at a 120° slope, the difference between the two image data is judged to determine whether the joint meets the qualification requirements. If there is no difference or the difference is small, it is a qualified product at this stage, and step S4 is performed to continue to implement subsequent inspections. If the difference between the two is large, it is a defective product at this stage, and step S9 is performed to directly place it in the corresponding receiving bin 941 as a defective product at this stage;

[0092] Step S4, wrong tooth detection;

[0093] The turntable 1 continues to rotate a predetermined angle, rotates the joint after step S3 to the misaligned tooth camera 41 of the misaligned tooth detection component 4, and starts the misaligned tooth camera 41 and the corresponding diffuse light plate 43, transmits the captured image data to the controller and compares it with the pre-stored misaligned tooth image data, determines the difference between the two image data, and determines whether the joint meets the qualified requirements. If there is no difference or the difference is small, it is a qualified product at this stage, and then proceeds to step S5, and continues to perform subsequent inspections. If the difference between the two is large, it is a defective product at this stage, and then proceeds to step S9, and directly places it in the corresponding receiving bin 941 as a defective product at this stage;

[0094] Step S5, thread detection;

[0095] The turntable 1 continues to rotate by a predetermined angle, rotates the joint after step S4 to the thread camera 51 of the thread detection component 5, and starts the thread camera 51 and the annular light source 33 corresponding to the thread camera 51, transmits the captured image data to the controller and compares it with the pre-stored thread image data, determines the difference between the two image data, and determines whether the joint meets the qualification requirements. If there is no difference or the difference is small, it is a qualified product at this stage, and then proceeds to step S6, and continues to perform subsequent inspections. If the difference between the two is large, then proceed to step S9, which means it is a defective product at this stage and is directly placed in the corresponding receiving bin 941 as a defective product at this stage;

[0096] Step S6, slot type detection;

[0097] The turntable 1 continues to rotate a predetermined angle, rotates the joint after step S5 to the groove inspection camera 61 of the groove inspection assembly 6, and starts the groove inspection camera 61 and the light-emitting board 64 corresponding to the groove inspection camera 61. At the same time, the groove inspection rotating member 62 is controlled to contact the clamping member 12 where the joint is located and start the groove inspection rotating member 62, transmits the captured image data to the controller and compares it with the pre-stored surface groove image data, judges the difference between the two image data, and judges whether the joint meets the qualified requirements. If there is no difference or the difference is small, it is a qualified product at this stage, and then step S7 is performed to continue the subsequent inspection. If the difference between the two is large, it is a defective product at this stage, and then step S9 is performed, and it is directly placed in the corresponding receiving bin 941 as a defective product at this stage;

[0098] Step S7, line scan detection;

[0099] The turntable 1 continues to rotate at a predetermined angle, and the transfer structure 91 of the unloading assembly 9 is started. The joint after step S6 is transferred to the turntable 72 through the transfer clamp 913, and the line scan camera 71 and the line scan light source 74 are started. At the same time, the turntable 72 is controlled to rotate, and the captured image data is transmitted to the controller and compared with the pre-stored line scan image data to determine the difference between the two image data and whether the joint meets the qualified requirements. If there is no difference or the difference is small, it is a qualified product at this stage, and step S8 is performed to continue the subsequent inspection. If the difference between the two is large, it is a defective product at this stage, and step S9 is performed to directly place it in the corresponding receiving bin 941 as a defective product at this stage;

[0100] Step S8, detecting foreign matter at the bottom of the casing;

[0101] The turntable 1 continues to rotate at a predetermined angle, and the transfer structure 91 and the flip structure 92 of the unloading assembly 9 are started, and the joint after step S7 is transferred from the turntable 72 to the foreign matter inspection table 82 at the bottom of the casing by the flipping claw 922. At the same time, the joint is flipped and turned around by the flipping claw 922, and the foreign matter camera 81 at the bottom of the casing and the corresponding diffuse light plate 43 are started, and the captured image data is transmitted to the controller and compared with the pre-stored image data of the bottom of the casing to determine the difference between the two image data and whether the joint meets the qualified requirements. If there is no difference or the difference is small, the product is qualified and the subsequent inspection is continued. If the difference is large, the product is defective. The qualified and defective products are placed in the corresponding receiving bin 941 respectively through step S9;

[0102] Step S9, unloading;

[0103] The turntable 1 continues to rotate at a predetermined angle, and the transfer structure 91, the flip structure 92 and the unloading structure 93 of the unloading assembly 9 are started. The joint is transferred from the clamping part 12 on the turntable 1 to the turntable 72 through the transfer structure 91, and the joint is transferred from the turntable 72 to the foreign body inspection table 82 at the bottom of the casing through the flip structure 92 and the joint is flipped and turned around, and then the unloading structure 93 is started to transfer the joint on the foreign body inspection table 82 at the bottom of the casing to the corresponding receiving bin 941, so as to meet the use requirements of defective product recovery and qualified product collection.

[0104] The joint appearance inspection equipment and the inspection method provided in the present embodiment are provided with a feeding component 2, a boss end face inspection component 3, a misaligned tooth detection component 4, a thread detection component 5, a groove inspection component 6, a line scanning component 7, a casing bottom foreign matter detection component 8 and a unloading component 9, which are sequentially arranged around the turntable 1 along its rotation direction, and can respectively realize the inspection of the appearance features such as holes, surfaces, grooves, threads, etc. on the joint to be inspected, and judge whether it is a qualified product by comparing with the pre-stored qualified image data, thereby meeting the inspection requirements of the joint appearance and ensuring the quality of the produced joints, and can also realize automatic loading, inspection and unloading, saving labor and having higher inspection efficiency, and the product qualification standard is the pre-stored image data, thereby ensuring the uniformity of the inspection standard and higher inspection accuracy, and also ensuring the uniformity of the joints produced in the same batch, ensuring the quality of the produced joints, and better meeting the large-scale production needs of the enterprise.

[0105] The above are only preferred embodiments of the present invention, and are not intended to limit the implementation methods and protection scope of the present invention. Those skilled in the art should be aware that all solutions obtained by equivalent substitutions and obvious changes made using the description and illustrations of the present invention should be included in the protection scope of the present invention.

Claims

1. Joint appearance inspection equipment, characterized in that: include: A turntable, the turntable is rotatably arranged on the frame, and a plurality of clamping members are arranged at intervals on the edge of the turntable; A feeding assembly, wherein the feeding assembly is arranged on the frame, and one end of the feeding assembly extends out of the frame; A boss end face detection assembly, the boss end face detection assembly comprising an end face detection camera, the end face detection camera is mounted above the turntable and corresponds to each of the clamps in sequence when the turntable rotates, and at the same time, the detection end of the end face detection camera is arranged vertically toward the clamp; A misaligned tooth detection assembly, the misaligned tooth detection assembly is arranged on the frame, and along the rotation direction of the turntable, the misaligned tooth detection assembly is located behind the boss end surface detection assembly, the misaligned tooth detection assembly includes a misaligned tooth camera, the misaligned tooth camera is arranged above the turntable and corresponds to each of the clamping members in sequence during the rotation of the turntable; A thread detection assembly, which is arranged on the frame and is located behind the misaligned tooth detection assembly along the rotation direction of the turntable, and includes a thread camera, which is mounted above the turntable and corresponds to each of the clamping members in sequence during the rotation of the turntable; A slot inspection assembly, the slot inspection assembly is arranged on the frame and is located behind the thread inspection assembly along the rotation direction of the turntable, and includes a slot inspection camera, the slot inspection camera is mounted above the outer side of the turntable and arranged toward the clamping member, and during the rotation of the turntable, the slot inspection camera corresponds to each of the clamping members in sequence; A line scanning assembly, which is arranged on the frame and located behind the slot inspection assembly along the rotation direction of the turntable, and comprises a line scanning camera and a turntable, both of which are located on the frame and beside the turntable, and the line scanning camera is arranged toward the turntable; A casing bottom foreign body detection component, the casing bottom foreign body detection component is arranged on the frame and is located behind the line scanning component along the rotation direction of the turntable, and comprises a casing bottom foreign body camera and a casing bottom foreign body inspection platform, the casing bottom foreign body inspection platform is arranged on the frame and is located on the side of the turntable away from the turntable, and the casing bottom foreign body camera is arranged on the frame and is mounted above the casing bottom foreign body inspection platform and is directly opposite to the casing bottom foreign body inspection platform; A discharge assembly, the discharge assembly is arranged on the frame and is located beside the casing bottom foreign matter detection assembly, the discharge assembly extends from the edge of the turntable toward the outside of the frame, and the discharge assembly passes beside the line scanning assembly and the casing bottom foreign matter detection assembly in sequence; It also includes a controller, and the turntable, the feeding assembly, the boss end surface detection assembly, the misaligned tooth detection assembly, the thread detection assembly, the groove detection assembly, the line scanning assembly, and the casing bottom foreign body detection assembly are all electrically connected to the controller; The misaligned tooth detection assembly and the sleeve bottom foreign body detection assembly also include an adjustment member and a diffuse light plate, the adjustment member includes a horizontal adjustment member and a vertical adjustment member, the horizontal adjustment member is fixedly mounted on the frame, the vertical adjustment member is vertically mounted on the horizontal adjustment member, the outer side of the diffuse light plate is mounted on the corresponding vertical adjustment member, the diffuse light plate is a spherical cover structure, the diffuse light plate of the misaligned tooth detection assembly is arranged toward the clamping member, the diffuse light plate of the sleeve bottom foreign body detection assembly is arranged toward the sleeve bottom foreign body inspection station, and a through hole is opened in the center of the diffuse light plate, the misaligned tooth camera and the sleeve bottom foreign body camera are respectively mounted on the corresponding vertical adjustment member and located above the corresponding diffuse light plate, and the misaligned tooth camera and the sleeve bottom foreign body camera are respectively facing the through holes on the corresponding diffuse light plate; The slot inspection assembly also includes a slot inspection movable bracket and a light-emitting board. The slot inspection movable bracket includes a horizontal movable bracket and a vertical movable bracket. The horizontal movable bracket is fixed on the frame, and the vertical movable bracket is installed on the horizontal movable bracket. At the same time, the slot inspection camera and the light-emitting board are both installed on the vertical movable bracket and are respectively located on both sides of the clamp.

2. The joint appearance detection device according to claim 1 is characterized in that: The slot inspection assembly further comprises a slot inspection rotating member, which is mounted on the frame and located at the bottom or side of the turntable, and the slot inspection rotating member selectively contacts the clamping member on the turntable.

3. The joint appearance detection device according to claim 2, characterized in that: The clamping part includes a rotating sleeve, a rotating rod and a socket. The rotating sleeve is installed on the turntable. The rotating rod is rotatably installed in the rotating sleeve and is coaxially arranged with the rotating sleeve. The upper end and the lower end of the rotating rod both extend out of the rotating sleeve, and the socket is arranged on the upper end of the rotating rod extending out of the turntable.

4. The joint appearance detection device according to claim 3 is characterized in that: The feeding assembly includes a feeding slide, a feeding actuator and a feeding clamp, one end of the feeding slide is located at the outer edge of the turntable, and the other end of the feeding slide extends outside the frame, the feeding slide has a feeding slide plate that slides back and forth between its two ends, and a plurality of feeding positions are arranged on the feeding slide plate, the feeding actuator includes a horizontal feeding actuator and a vertical feeding actuator, the horizontal feeding actuator is installed on the frame, the vertical feeding actuator is installed on the horizontal feeding actuator, and at the same time, the feeding clamp is installed on the vertical feeding actuator.

5. The joint appearance detection device according to claim 4, characterized in that: The boss end face detection component and the thread detection component also include an adjustment bracket and an annular light source, the adjustment bracket includes a horizontal slide and a vertical slide, the horizontal slide is fixedly mounted on the frame, the vertical slide is vertically mounted on the horizontal slide, the outer side of the annular light source is mounted on the corresponding vertical slide, the annular light source is sleeved on the outer side of the clamp and located above the clamp, the end face detection camera and the thread camera are respectively mounted on the corresponding vertical slide and are both located above the corresponding annular light source, and the end face detection camera and the thread camera are both on the axis of the corresponding annular light source.

6. The joint appearance detection device according to claim 5, characterized in that: The line scanning assembly also includes a line scanning moving part and a line scanning light source, the line scanning camera and the line scanning light source respectively correspond to one of the line scanning moving parts, and the line scanning moving part includes a horizontal moving part and a vertical moving part, the horizontal moving part is arranged on the frame, and the vertical moving part is arranged on the horizontal moving part, the line scanning camera and the line scanning light source are respectively installed on the corresponding vertical moving parts, and the line scanning light source is arranged toward the turntable.

7. The joint appearance detection device according to claim 6, characterized in that: The unloading assembly includes a transfer structure, a turnover structure, a unloading structure and a receiving structure, and, The transfer structure comprises a horizontal moving group, a vertical moving group and a transfer clamp, wherein the horizontal moving group is slidably arranged on the frame, the vertical moving group is mounted on the horizontal moving group, and the transfer clamp is mounted on the vertical moving group; The flip structure comprises a flip driver and a flip clamp, wherein the flip driver is arranged on the vertical moving group, and the flip clamp is installed on the driving shaft of the flip driver; The unloading structure comprises an unloading slide, an unloading actuator and an unloading claw, wherein the unloading slide is horizontally arranged on the frame, the unloading actuator is slidably arranged on the unloading slide and moves away from or close to the foreign body inspection platform at the bottom of the casing, and the unloading claw is installed on the unloading actuator; The material receiving structure comprises a plurality of material receiving bins, and the plurality of material receiving bins are arranged in parallel along the arrangement direction of the unloading slide.

8. A method for detecting joint appearance using the joint appearance detection device according to claim 7, comprising the following steps: Step S1, data input; Pre-storing the boss end face tilt angle image data, staggered tooth image data, thread image data, surface groove image data, surface line scan image data and casing bottom image data of a batch of joints in the controller; Step S2, loading; The joint to be tested is placed on the loading position of the loading slide, and the loading actuator is started to drive the loading clamp to clamp the joint to be tested on the loading position and place it on one of the clamps on the turntable; Step S3, boss end surface detection; The turntable rotates a predetermined angle, rotates the clamping piece clamping the joint to be inspected to the end face inspection camera of the boss end face inspection assembly, starts the end face inspection camera and the annular light source corresponding to the end face inspection camera, transmits the captured image data to the controller and compares it with the pre-stored boss end face inclination angle image data, determines the difference between the two image data, and if there is no difference or the difference is small, proceeds to step S4, and if the difference is large, proceeds to step S9; Step S4, wrong tooth detection; The turntable continues to rotate by a predetermined angle, rotates the joint after step S3 to the misaligned tooth camera of the misaligned tooth detection component, starts the misaligned tooth camera and the corresponding diffuse light plate, transmits the captured image data to the controller and compares it with the pre-stored misaligned tooth image data, and determines the difference between the two image data. If there is no difference or the difference is small, proceed to step S5; if the difference is large, proceed to step S9; Step S5, thread detection; The turntable continues to rotate by a predetermined angle, rotates the joint after step S4 to the thread camera of the thread detection assembly, starts the thread camera and the annular light source corresponding to the thread camera, transmits the captured image data to the controller and compares it with the pre-stored thread image data, and determines the difference between the two image data. If there is no difference or the difference is small, proceed to step S6; if the difference is large, proceed to step S9; Step S6, slot type detection; The turntable continues to rotate at a predetermined angle, rotates the joint after step S5 to the groove inspection camera of the groove inspection assembly, and starts the groove inspection camera and the light-emitting board corresponding to the groove inspection camera. At the same time, the groove inspection rotating member is controlled to contact the clamping member where the joint is located and start the groove inspection rotating member, transmits the captured image data to the controller and compares it with the pre-stored surface groove image data, and determines the difference between the two image data. If there is no difference or the difference is small, proceed to step S7, and if the difference is large, proceed to step S9; Step S7, line scan detection; The turntable continues to rotate by a predetermined angle, and the transfer structure of the unloading assembly is started, the joint after step S6 is transferred to the turntable through the transfer clamp, and the line scan camera and the line scan light source are started. At the same time, the turntable is controlled to rotate, and the captured image data is transmitted to the controller and compared with the pre-stored line scan image data to determine the difference between the two image data. If there is no difference or the difference is small, step S8 is performed, and if the difference is large, step S9 is performed; Step S8, detecting foreign matter at the bottom of the casing; The turntable continues to rotate at a predetermined angle, and the transfer structure and the flip structure of the unloading assembly are started, and the joint after step S7 is transferred from the turntable to the foreign matter inspection table at the bottom of the casing by the flip clamp. At the same time, the joint is flipped and turned around by the flip clamp, and the foreign matter camera at the bottom of the casing and the corresponding diffuse light plate are started, and the captured image data is transmitted to the controller and compared with the pre-stored image data of the bottom of the casing to judge the difference between the two image data. If there is no difference or the difference is small, or if the difference is large, step S9 is performed; Step S9, unloading; The turntable continues to rotate at a predetermined angle, and the transfer structure, the flipping structure and the unloading structure of the unloading assembly are started, and the joint is transferred from the clamp on the turntable to the turntable through the transfer structure. At the same time, the joint is transferred from the turntable to the foreign object inspection table at the bottom of the casing through the flipping structure and the joint is flipped and turned around, and then the unloading structure is started to transfer the joint on the foreign object inspection table at the bottom of the casing to the corresponding receiving bin.

Images