Guide ring automatic detection device and method

Abstract

The invention discloses an automatic guide ring detection device and method, and relates to the technical field of guide ring detection, the automatic guide ring detection device comprises a lower rack, the lower rack is provided with an upper rack, and the lower rack is provided with a bottom plate; the carrying mechanisms are arranged on the bottom plate and used for carrying the guide rings; the feeding conveying assembly is used for conveying the guide rings to the carrying mechanism; the external dimension detection mechanism is arranged on the bottom plate; the go gauge detection mechanism is close to the external dimension detection mechanism; the discharging assembly is arranged on the bottom plate; and the end face detection mechanism is arranged on the bottom plate. Through cooperation of the vibration feeding assembly, the feeding conveying assembly, the three carrying mechanisms, the detection mechanisms, the discharging mechanism and the discharging mechanism, full-process automatic operation of feeding, carrying, multi-project detection, sorting and discharging of the guide rings is achieved, manual intervention is not needed, the detection efficiency is effectively improved, and the manual labor intensity and manual detection errors are reduced.

Description

Technical Field

[0001] This application relates to the field of guide ring detection technology, and more specifically, to an automatic guide ring detection device and method. Background Technology

[0002] Guide rings, as key basic components in mechanical transmission systems, aerospace equipment, and automotive parts, are typically ring-shaped and primarily used for positioning, guiding, or transmission between components. Their external dimensional accuracy, internal diameter consistency, end-face appearance quality, and height uniformity directly affect the overall assembly accuracy, operational stability, and service life. In high-precision equipment, the dimensional error of guide rings must be controlled within the micrometer level, and the end face must be free of defects such as scratches, cracks, and stains. Otherwise, abnormal clearances between components can occur, leading to vibration, accelerated wear, and even equipment failure and downtime. Therefore, quality inspection of guide rings before they leave the factory is a crucial step in ensuring reliable equipment operation.

[0003] To ensure that guide ring products meet usage requirements, multiple core tests must be completed before leaving the factory, including accurate external dimension testing, internal diameter specification and roundness conformity testing, appearance defect testing of upper and lower end faces, and height consistency testing. Currently, the mainstream testing method in the industry is mainly manual inspection. Some companies use single-function testing equipment combined with manual handling to complete the testing process. That is, operators use tools such as calipers and micrometers to measure the external dimensions, manually fit the guide ring into the go gauge to determine the internal diameter specification, rely on visual inspection of the end face for defects, and finally use simple tooling to check whether the height is qualified. After the inspection is completed, qualified products and defective products are sorted manually.

[0004] When manually measuring the outer dimensions of guide rings with calipers and micrometers, the measurement results are easily affected by the operator's technique, visual errors, and fatigue. This makes it difficult to achieve comprehensive and accurate measurement of the guide ring's outer contour, leading to guide rings with out-of-tolerance dimensions being mistakenly judged as qualified. When these guide rings enter the assembly process, they cause poor component fit, increase equipment operating resistance, and shorten equipment lifespan. Furthermore, the human eye has limited ability to identify defects such as minute scratches and micro-cracks when observing the guide ring's end face, easily leading to missed detections. Guide rings with such defects will gradually expand under load or during long-term use, eventually causing breakage and triggering sudden equipment failure. Different testing items require different equipment, and the transfer of guide rings between these testing devices relies entirely on… Relying on manual labor not only increases the workload of operators but also leads to discontinuous testing processes, low efficiency, and an inability to meet the speed requirements of large-scale production. Furthermore, manual sorting of defective and qualified products is prone to mixing, requiring additional manpower for secondary screening, increasing production costs. If undetected defective products are not identified promptly, they may cause batch quality problems, damaging the company's reputation. In addition, some single-function automated testing equipment can only complete one testing item, still requiring manual intervention for transfer and subsequent testing, failing to achieve full automation. Dust, debris, and accidental human contact during the testing process can also affect testing accuracy, further reducing the reliability of guide ring testing.

[0005] Therefore, it is necessary for the inventors to design a new automatic guide ring detection device and method to overcome the above problems. Summary of the Invention

[0006] The main objective of this application is to provide an automatic guide ring testing device and method to solve the problems that guide rings on the market are manually tested and cannot be automatically tested for multiple functions.

[0007] To achieve the above objectives, this application provides an automatic guide ring inspection device, including a lower frame, an upper frame mounted on the lower frame, and a base plate mounted on the lower frame; a vibratory feeding assembly located near the lower frame; a plurality of conveying mechanisms mounted on the base plate for transporting guide rings; a feeding conveying assembly for transporting guide rings sorted by the vibratory feeding assembly to the conveying mechanisms; an outer dimension inspection mechanism mounted on the base plate for inspecting the outer dimensions of the guide rings; a guide gauge inspection mechanism located near the outer dimension inspection mechanism for inspecting the specifications of the guide rings; a unloading assembly mounted on the base plate for rejecting defective products; and an end face inspection mechanism mounted on the base plate for inspecting the appearance of the guide ring end faces.

[0008] Optionally, the conveying mechanism is provided in three sets, including: a support frame fixed to the base plate; a connecting plate provided on the support frame; a drive wheel rotatably provided on the connecting plate; a connecting rod fixedly connected to the drive wheel at one end; a connecting rod rotatably provided at the other end of the connecting rod; and a pneumatic gripper provided at the other end of the connecting rod.

[0009] Optionally, the connecting plate is provided with a driven wheel, and a belt is fitted on the driving wheel and the driven wheel. A connecting rod is fixed on the driven wheel, and the other end of the connecting rod is rotatably connected to the connecting rod. A photoelectric sensor with a rotating plate is fixedly connected on the driven wheel and located on the back of the connecting plate for detecting the rotation state of the rotating plate. The connecting plate is provided with an adjusting wheel for adjusting the belt tension.

[0010] Optionally, the external dimension detection mechanism includes: a first bracket disposed on the base plate; a guide ring positioning seat disposed on the first bracket; a first motor disposed below the first bracket for rotating the guide ring positioning seat; a support seat disposed on the base plate and located below the first bracket; a plurality of image measuring instruments disposed on the support seat and facing the guide ring positioning seat; and a plurality of first through-beam photoelectric sensors disposed on the first bracket and close to the guide ring positioning seat.

[0011] Optionally, the go gauge inspection mechanism includes: a second bracket fixed to the base plate; a guide ring mounting seat disposed on the second bracket; a second motor for driving the guide ring mounting seat to rotate; and a second through-beam photoelectric sensor disposed on the second bracket and close to the guide ring mounting seat.

[0012] Optionally, the go gauge inspection mechanism further includes: a slide rail fixed on the second bracket; a pressure block slidably connected to the slide rail; a first cylinder fixed on the second bracket by a mounting seat and whose output end is fixedly connected to the pressure block; and a positioning hole opened on the pressure block and corresponding to the guide ring mounting seat.

[0013] Optionally, the feeding mechanism includes: a guide ring conveyor belt mounted on the base plate; a support plate fixed to the base plate and close to the guide ring conveyor belt; a second cylinder disposed on the top of the support plate and facing the guide ring conveyor belt, the output end of the second cylinder being provided with a push block for pushing the guide ring located on the guide ring conveyor belt to feed material; a feeding chute disposed on the base plate with one end close to the guide ring conveyor belt; a storage chamber located at the other end of the feeding chute; and a third through-beam photoelectric sensor disposed on the feeding chute.

[0014] Optionally, the end face inspection mechanism includes: a turntable fixed to the base plate; a transparent disk disposed on and rotatably connected to the turntable; a column disposed on the base plate and close to the turntable; a connector disposed on the column, the connector having a first industrial area scan camera with its lens facing the transparent disk; a second industrial area scan camera disposed on the base plate via a mounting base and located below the transparent disk, the lens of the second industrial area scan camera facing the transparent disk; and a first parallel coaxial light source and a second parallel coaxial light source disposed at the interval between the first industrial area scan camera and the second industrial area scan camera and the transparent disk.

[0015] Optionally, the base plate is further provided with a discharge mechanism, which includes a discharge baffle mounted on the base plate by a support rod and located above the disc; an inclined discharge slide fixed to the base plate by a mounting seat and located below the transparent disc and close to the discharge baffle; a connecting sheet metal for fixing to the discharge slide; a discharge plate fixed to the connecting sheet metal and horizontally arranged with the discharge slide; a height limiting block fixed to the discharge plate by bolts at intervals; and a fourth photoelectric sensor provided on the discharge slide and the discharge plate.

[0016] An automatic detection method for guide rings, the detection method of the automatic detection device includes the following steps: S1. Feeding Step: Place the guide ring to be tested in the vibrating feeding assembly. After being sorted by the vibration of the vibrating feeding assembly, the feeding conveying assembly will transport the guide ring one by one to the pneumatic gripper of the first set of conveying mechanism, waiting to be gripped. S2, First handling step: The drive wheel of the first handling mechanism rotates, driving the connecting rod to rotate. The connecting rod drives the connecting rod to move the pneumatic gripper to the top of the guide ring in a circular motion. After the pneumatic gripper closes and grabs the guide ring, the drive wheel continues to rotate, driving the guide ring to move to the guide ring positioning seat of the outer dimension detection mechanism through the connecting rod. The pneumatic gripper then releases to complete the placement of the guide ring. S3. External dimension detection steps: After the first photoelectric sensor of the external dimension detection mechanism detects the guide ring on the guide ring positioning seat, the first motor starts to drive the guide ring positioning seat to rotate the guide ring. Several image measuring instruments on the support seat simultaneously perform all-round scanning detection of the outer contour dimension of the guide ring during the rotation process, obtain the outer dimension data of the guide ring and transmit it to the control unit. S4. Second handling step: After the external dimension inspection is completed, the second handling mechanism, according to the motion principle of step S2, uses its pneumatic grippers to grab the guide ring on the guide ring positioning seat, move it to the guide ring mounting seat of the go gauge inspection mechanism and release it. S5. Check and caliber inspection steps: After the second photoelectric sensor of the check and caliber inspection mechanism detects the guide ring, the first cylinder starts to drive the pressure block to slide along the slide rail towards the guide ring mounting seat. The positioning hole on the pressure block precisely matches the guide ring to press and fix the guide ring. Then, the second motor starts to drive the guide ring mounting seat to rotate the guide ring. Through the matching state between the guide ring and the positioning hole during the rotation process and the signal feedback from the second photoelectric sensor, the guide ring specification conformity test is completed, and the test data is transmitted to the control unit. S6. Sorting Steps: The control unit determines whether the guide ring is qualified based on the external dimension inspection data and the go gauge inspection data. If it is a defective product, the third group of handling mechanisms grabs the guide ring and places it on the guide ring conveyor belt. Then, the second cylinder starts to push the defective guide ring into the unloading chute and transports it to the storage chamber for collection. If it is a qualified product, the third group of handling mechanisms directly places the guide ring on the guide ring conveyor belt. The conveyor belt starts to transport the qualified guide ring to the transparent disc of the end face inspection mechanism. S7. End face inspection steps: The transparent disk rotates, causing the qualified product guide ring to make a circular motion. When the guide ring moves to the inspection area of ​​the first industrial area array camera and the second industrial area array camera respectively, the first parallel coaxial light source and the second parallel coaxial light source provide uniform illumination from the upper and lower sides of the transparent disk respectively. The first industrial area array camera acquires an image of the upper end face of the guide ring, and the second industrial area array camera acquires an image of the lower end face of the guide ring through the transparent disk. The acquired end face images are transmitted to the control unit for appearance defect detection. S8. Discharge Steps: After the end face inspection is completed, the transparent disc continues to rotate. The guide ring falls into the inclined discharge slide under the limiting action of the discharge baffle. During the sliding process of the guide ring along the discharge slide, the height limiting block performs height consistency detection on the guide ring. The fourth photoelectric sensor detects the discharge status of the guide ring. Finally, the qualified guide ring is discharged through the discharge plate.

[0017] The automatic guide ring inspection device and method provided by this invention have the following advantages compared with the prior art: high degree of automation: through the coordinated cooperation of the vibration feeding component, the feeding conveying component, three sets of handling mechanisms, various inspection mechanisms, and the unloading and discharging mechanisms, the entire process of guide ring inspection from feeding, handling, multi-item inspection to sorting and discharging is fully automated, without the need for manual intervention, effectively improving inspection efficiency and reducing manual labor intensity and human inspection errors; it covers the inspection of the guide ring's external dimensions, specifications, end face appearance defects, and high consistency, and can comprehensively investigate various quality problems of the guide ring to ensure that the quality of the guide rings leaving the factory is qualified. Attached Figure Description

[0018] The accompanying drawings, which form part of this application, are used to provide a further understanding of the application and to make other features, objects, and advantages of the application more apparent. The illustrative embodiments and descriptions of this application are used to explain the application and do not constitute an undue limitation of the application. In the drawings: Figure 1 This is a three-dimensional schematic diagram of the overall structure of the present invention; Figure 2 This is a three-dimensional structural schematic diagram of the present invention; Figure 3 This is a three-dimensional structural schematic diagram of the conveying mechanism of the present invention; Figure 4 This is a three-dimensional structural schematic diagram of the conveying mechanism of the present invention; Figure 5 This is a three-dimensional structural schematic diagram of the external dimension detection mechanism of the present invention; Figure 6 This is a three-dimensional structural schematic diagram of the external dimension detection mechanism of the present invention; Figure 7 This is a three-dimensional structural schematic diagram of the gauge inspection mechanism of the present invention; Figure 8 This is a three-dimensional structural schematic diagram of the feeding mechanism of the present invention; Figure 9 This is a three-dimensional structural schematic diagram of the end face detection mechanism of the present invention; Figure 10 This is a three-dimensional structural schematic diagram of the material discharge mechanism of the present invention; Figure 11 This is a schematic cross-sectional view of the material discharge mechanism of the present invention.

[0019] The components include: 1. Lower frame; 11. Mounting plate; 2. Lifting frame; 21. First cylinder; 22. Connecting frame; 23. Magnetic ring gripper; 3. Sensor; 31. Second cylinder; 32. Support frame; 33. Rotating part; 34. Three-jaw chuck; 35. Flaw detection assembly; 36. Support plate; 37. Third cylinder; 38. Clamping assembly; 39. Rod frame; 4. Base plate; 41. Storage box; 42. Bracket; 43. Slide rail; 44. Electric telescopic rod. Detailed Implementation

[0020] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of protection of the present application.

[0021] It should be noted that the terms "first," "second," etc., used in the specification and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be used interchangeably where appropriate for the embodiments of this application described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that includes a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0022] In this application, the terms "upper," "lower," "left," "right," "front," "rear," "top," "bottom," "inner," "outer," "middle," "vertical," "horizontal," "lateral," and "longitudinal" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for the purpose of better describing this application and its embodiments, and are not intended to limit the indicated device, element, or component to having a specific orientation, or to be constructed and operated in a specific orientation.

[0023] Furthermore, in addition to indicating location or positional relationship, some of the aforementioned terms may also have other meanings. For example, the term "above" may also be used in some cases to indicate a certain dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in this application based on the specific circumstances.

[0024] In addition, the term "multiple" should mean two or more.

[0025] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.

[0026] Example 1, as Figures 1-2 As shown, this invention discloses an automatic guide ring inspection device. The device includes a lower frame 1, on which an upper frame 12 is fixedly mounted to protect the internal inspection mechanisms, preventing external dust, debris, or accidental contact by personnel from interfering with the fully automatic inspection process and ensuring inspection stability and safety. A base plate 11 is fixedly mounted on the lower frame 1, serving as the mounting foundation for all functional mechanisms and ensuring the accuracy of the installation position and the coordination of movement of each mechanism. The base plate 11 is sequentially mounted with a feeding conveyor assembly, a vibrating feeding assembly 13, three sets of conveying mechanisms 2, an external dimension inspection mechanism 3, a gauge inspection mechanism 4, a unloading mechanism 5, an end face inspection mechanism 6, and a discharge mechanism. All mechanisms are arranged sequentially on the same horizontal plane according to the guide ring inspection process, forming a complete automated inspection production line.

[0027] like Figures 2-4 As shown, the conveying mechanism 2 has three sets, which are evenly arranged on the same horizontal line along the length of the base plate 11. They correspond to the conveying process of the guide ring from the feeding end to the outer dimension detection mechanism 3, the outer dimension detection mechanism 3 to the gauge detection mechanism 4, and the gauge detection mechanism 4 to the unloading mechanism 5, respectively, realizing seamless connection of the guide ring between each detection station. Each set of conveying mechanism 2 includes a support frame 21 fixed on the base plate 11. A connecting plate 22 is fixedly installed on the top of the support frame 21. A driving wheel 23 and a driven wheel 26 are rotatably arranged on the connecting plate 22. A belt is fitted on the driving wheel 23 and the driven wheel 26, and power is transmitted through the belt. The connecting plate 22 is also provided with an adjusting wheel 29 for adjusting the belt tension. By adjusting the position of the adjusting wheel 29, the transmission error caused by belt loosening can be avoided, ensuring the conveying accuracy. The drive wheel 23 is connected to an external drive motor, and a connecting rod 27 is fixedly connected to the driven wheel 26. The other end of the connecting rod 27 is rotatably connected to a connecting rod 24, and a pneumatic gripper 25 is fixedly mounted on the other end of the connecting rod 24. The pneumatic gripper 25 is connected to an external pneumatic system to realize the opening and closing action of the gripper to grasp or release the guide ring. In addition, a rotating plate 28 is fixedly connected to the driven wheel 26 and located on the back of the connecting plate 22. A photoelectric sensor for detecting the rotation state of the rotating plate 28 is installed on the connecting plate 22 at the position corresponding to the rotating plate 28. The photoelectric sensor is electrically connected to the control unit. By detecting the rotation angle of the rotating plate 28, the rotation position of the drive wheel 23 and the driven wheel 26 is fed back, thereby accurately controlling the displacement stroke of the pneumatic gripper 25 to ensure that the pneumatic gripper 25 can accurately grasp and place the guide ring. The working principle of the conveying mechanism 2 is as follows: the external drive motor drives the drive wheel 23 to rotate, the drive wheel 23 drives the connecting rod 27 to rotate around the axis of the driven wheel 26, and the connecting rod 27 drives the connecting rod 24 to drive the pneumatic gripper 25 to make arc displacement in a circular motion. When the drive wheel 23 rotates 180°, the pneumatic gripper 25 is just moved to the designated position of the next station, realizing the precise conveying of the guide ring. Its structure is simple and the movement is stable, which can effectively improve the conveying efficiency and positioning accuracy of the guide ring.

[0028] like Figure 5 and Figure 6As shown, the external dimension detection mechanism 3 is fixedly installed on the base plate 11, located between the first set of conveying mechanisms 2 and the second set of conveying mechanisms 2, and is used to accurately detect the outer diameter, thickness, and other outer contour dimensions of the guide ring. The external dimension detection mechanism 3 includes a first bracket 32 ​​mounted on the base plate 11. A guide ring positioning seat 33 is fixedly installed on the top of the first bracket 32. The guide ring positioning seat 33 has a circular groove structure, and its inner diameter matches the outer diameter of the guide ring, used to position the guide ring and prevent it from shifting during the detection process. A first motor 34 is fixedly installed below the first bracket 32. The output shaft of the first motor 34 passes through the first bracket 32 ​​and is fixedly connected to the bottom of the guide ring positioning seat 33, used to drive the guide ring positioning seat 33 to rotate the guide ring around its own axis. A support base 31 is fixedly installed on the base plate 11 and directly below the first bracket 32. The support base 31 has a ring structure and is equipped with several image measuring instruments 35. The lenses of the image measuring instruments 35 face the guide ring positioning seat 33 and are used to perform omnidirectional scanning measurement of the outer contour of the guide ring during rotation. The image measuring instruments 35 are electrically connected to the control unit and transmit the measurement data to the control unit in real time for analysis and processing. Several first through-beam photoelectric sensors 36 are installed on the first bracket 32 ​​near the guide ring positioning seat 33. The first through-beam photoelectric sensors 36 are electrically connected to the control unit and are used to detect whether a guide ring is placed on the guide ring positioning seat 33. When a guide ring is detected, a signal is sent to the control unit, and the control unit starts the first motor 34 and the image measuring instruments 35 to begin the detection work. This external dimension detection mechanism 3, through the rotation of the guide ring and the synchronous detection of multiple sets of image measuring instruments 35, can effectively avoid measurement errors caused by defects such as local protrusions and depressions of the guide ring, and improve the comprehensiveness and accuracy of external dimension detection.

[0029] like Figure 7As shown, the go-gauge inspection mechanism 4 is located near the external dimension inspection mechanism 3, between the second and third transport mechanisms 2, and is used to perform conformity inspection on the inner diameter and roundness of the guide ring. The go-gauge inspection mechanism 4 includes a second bracket 41 fixed to the base plate 11. A guide ring mounting seat 42 is fixedly mounted on the top of the second bracket 41. The structure of the guide ring mounting seat 42 is adapted to the guide ring positioning seat 33 for placing the guide ring to be inspected. A second motor 43 is fixedly mounted on one side of the second bracket 41. The output shaft of the second motor 43 is fixedly connected to the bottom of the guide ring mounting seat 42 for driving the guide ring to rotate. A second through-beam photoelectric sensor 44 is mounted on the second bracket 41 near the guide ring mounting seat 42. The second through-beam photoelectric sensor 44 is electrically connected to the control unit and is used to detect whether there is a guide ring on the guide ring mounting seat 42, and to feed back a signal to the control unit to control the second motor 43 and the subsequent clamping mechanism. In addition, the gauge inspection mechanism 4 also includes a slide rail 45 fixed on the second bracket 41. The slide rail 45 is arranged in a direction perpendicular to the axis of the guide ring mounting seat 42. A pressure block 46 is slidably connected to the slide rail 45. A first cylinder 47 is fixedly mounted on the second bracket 41 through a mounting seat. The output end of the first cylinder 47 is fixedly connected to the pressure block 46 and is used to drive the pressure block 46 to slide back and forth along the slide rail 45. The pressure block 46 has a positioning hole 48 corresponding to the guide ring mounting seat 42. The inner diameter of the positioning hole 48 is the standard inner diameter of the guide ring. When the pressure block 46 slides towards the guide ring mounting seat 42 under the drive of the first cylinder 47, the positioning hole 48 can be fitted onto the outside of the guide ring. If the inner diameter of the guide ring meets the standard, the guide ring can rotate smoothly with the guide ring mounting seat 42 under the constraint of the positioning hole 48. If the inner diameter of the guide ring is too small or the roundness is out of tolerance, it cannot rotate smoothly. The second photoelectric sensor 44 will detect the abnormal rotation and feed back a signal to the control unit, determining that the guide ring is a defective product. The guide ring inspection mechanism 4 uses mechanical clamping and rotational inspection to quickly and accurately determine whether the guide ring specifications meet the requirements, with high inspection efficiency and strong reliability.

[0030] like Figure 8As shown, the unloading mechanism 5 is mounted on the base plate 11, located on one side of the third set of conveying mechanisms 2, and is used to convey qualified guide rings to the end face inspection mechanism 6 and to remove and collect defective guide rings. The unloading mechanism 5 includes a guide ring conveyor belt 51 mounted on the base plate 11. The guide ring conveyor belt 51 is connected to an external drive device for conveying guide rings. A support plate 52 is fixedly mounted on the base plate 11, near the guide ring conveyor belt 51. A second cylinder 53 is fixedly mounted on the top of the support plate 52. The output end of the second cylinder 53 faces the guide ring conveyor belt 51 and is used to push the pusher block 54, which unloads the defective guide rings located on the guide ring conveyor belt 51. A discharge chute 55 is fixedly installed on one end of the base plate 11 near the guide ring conveyor belt 51. The discharge chute 55 is inclined, with its high end aligned with the side of the guide ring conveyor belt 51 and its low end extending to the entrance of the storage chamber 56. The storage chamber 56 is fixedly installed on one side of the base plate 11 and is used to collect defective guide rings. A third photoelectric sensor 57 is installed on the discharge chute 55. The third photoelectric sensor 57 is electrically connected to the control unit and is used to detect whether the defective guide rings slide smoothly into the storage chamber 56 to avoid blockage. When the unloading mechanism 5 is working, if the control unit determines that the guide ring is defective, the third conveying mechanism 2 places the guide ring on the guide ring conveyor belt 51, and the second cylinder 53 is started. Its output end extends to push the defective guide ring away from the guide ring conveyor belt 51 and fall into the unloading chute 55, and slide into the storage chamber 56 through the unloading chute 55. If the guide ring is qualified, the second cylinder 53 does not operate, and the guide ring conveyor belt 51 is started to transport the guide ring to the transparent disc 62 of the end face detection mechanism 6, so as to achieve efficient sorting of qualified and unqualified guide rings.

[0031] like Figure 9As shown, the end-face inspection mechanism 6 is mounted on the base plate 11 at the output end of the guide ring conveyor belt 51. It is used to inspect the appearance defects of the upper and lower end faces of qualified guide rings, including scratches, stains, cracks, etc. The end-face inspection mechanism 6 includes a turntable base 61 fixed on the base plate 11. A transparent disk 62 is rotatably connected to the turntable base 61. The transparent disk 62 is made of optical glass with high light transmittance to ensure that the industrial camera below can clearly capture the image of the lower end face of the guide ring. The transparent disk 62 is connected to an external drive motor to drive the guide ring to perform circular motion. A column 63 is fixedly installed on the base plate 11 near the turntable base 61. A connector 64 is fixedly connected to the column 63. A first industrial area array camera 65 is fixedly installed on the connector 64. The lens of the first industrial area array camera 65 faces the transparent disk 62 to capture the image of the upper end face of the guide ring. A second industrial area scan camera 67 is fixedly mounted on the base plate 11, below the transparent disk 62, via a mounting bracket. The lens of the second industrial area scan camera 67 faces the transparent disk 62 and is used to acquire images of the lower end face of the guide ring through the transparent disk 62. A first parallel coaxial light source 66 is spaced between the first industrial area scan camera 65 and the transparent disk 62, and a second parallel coaxial light source 68 is spaced between the second industrial area scan camera 67 and the transparent disk 62. Both the first parallel coaxial light source 66 and the second parallel coaxial light source 68 are electrically connected to the control unit to provide uniform and stable illumination for image acquisition, avoid shadow interference, and improve image clarity. In addition, a light-transmitting dustproof plate, made of transparent acrylic material, is disposed between the first parallel coaxial light source 66, the second parallel coaxial light source 68, and the transparent disk 62. This plate protects the first parallel coaxial light source 66, the second parallel coaxial light source 68, and the lens of the industrial camera, preventing dust and debris generated during the guide ring inspection process from adhering to the surface of the light source or lens and affecting the inspection accuracy, while not affecting the normal transmission of light. Both the first industrial area scan camera 65 and the second industrial area scan camera 67 are electrically connected to the control unit, transmitting the acquired images of the guide ring end face to the control unit. The control unit uses an image recognition algorithm to determine whether there are defects on the guide ring end face.

[0032] like Figure 10 and Figure 11As shown, the base plate 11 is also equipped with a discharge mechanism for the final discharge of guide rings that have passed end-face inspection and for height consistency testing. This discharge mechanism includes a discharge baffle mounted on the base plate 11 via a support rod and located above the transparent disc 62. The position of the discharge baffle corresponds to the edge of the transparent disc 62, limiting the guide ring on the transparent disc 62. When the transparent disc 62 rotates the guide ring to the discharge baffle, the guide ring detaches from the transparent disc 62 under the obstruction of the discharge baffle and falls into the inclined discharge chute 7. The inclined discharge chute 7 is fixed to the base plate 11 by a mounting base and is located below the transparent disc 62 and close to the discharge baffle, with an inclined setting to facilitate the sliding of the guide ring under gravity. A connecting sheet metal 71 is fixedly connected to the discharge chute 7, and a discharge plate 72 is fixedly mounted on the connecting sheet metal 71. The discharge plate 72 is horizontally positioned with the discharge chute 7 for the final output of the guide ring. Height limiting blocks 73 are fixed to the discharge plate 72 at intervals by bolts. The spacing of the height limiting blocks 73 is the standard height of the guide ring, used to detect whether the height of the guide ring meets the requirements. If the height of the guide ring exceeds the standard range, it cannot pass through the gap between the height limiting blocks 73 and will be blocked on the discharge plate 72, which can be cleaned periodically by the staff. If the height of the guide ring meets the requirements, it can pass through the gap between the height limiting blocks 73 smoothly to complete the discharge. Both the discharge slide 7 and the discharge plate 72 are equipped with a fourth pair of photoelectric sensors 74. The fourth pair of photoelectric sensors 74 are electrically connected to the control unit and are used to detect the discharge status of the guide ring. If a blockage of the guide ring is detected, a signal is promptly fed back to the control unit, which can then suspend the operation of the device to prevent the fault from escalating.

[0033] like Figures 1-2 As shown, the base plate 11 is also equipped with a feeding conveyor assembly and a vibrating feeding assembly 13. The vibrating feeding assembly 13 is fixedly installed on one side of the lower frame 1, close to the first set of conveying mechanisms 2, and is used to sort and organize the messy guide rings to be tested, so that they are output in a uniform posture. One end of the feeding conveyor assembly is connected to the output end of the vibrating feeding assembly 13, and the other end extends to the pneumatic gripper 25 of the first set of conveying mechanisms 2, so as to convey the guide rings sorted by the vibrating feeding assembly 13 to the designated gripping position one by one, so as to facilitate the precise gripping of the pneumatic gripper 25, realize the automated feeding of the guide rings, and reduce manual intervention.

[0034] The automatic guide ring detection method of the present invention is based on the above-mentioned automatic guide ring detection device, and the specific implementation process is as follows: First, the feeding step is performed: the guide rings to be detected are placed in batches in the vibrating feeding assembly 13, the vibrating feeding assembly 13 starts vibrating, and the random guide rings are sorted into a uniform posture by the vibration. Then, the feeding conveying assembly is started, and the sorted guide rings are conveyed one by one to the pneumatic gripper 25 of the first group of conveying mechanisms 2, waiting to be grasped; Next, the first conveying step is performed: the control unit controls the external drive motor of the first group of conveying mechanisms 2 to start, driving the drive wheel 23 to rotate. The drive wheel 23 drives the driven wheel 26 to rotate synchronously through the belt. The rotating plate 28 on the driven wheel 26 rotates together with the driven wheel 26. The photoelectric sensor The rotation state of the rotating plate 28 is detected and fed back to the control unit. When the rotating plate 28 rotates to a preset angle, the control unit controls the pneumatic gripper 25 to close, gripping the guide ring on the feeding conveyor assembly. Then, the drive wheel 23 continues to rotate, driving the pneumatic gripper 25 to move in a circular motion above the guide ring positioning seat 33 of the outer dimension detection mechanism 3 via the connecting rod 27 and the connecting rod 24. The control unit then controls the pneumatic gripper 25 to release, placing the guide ring on the guide ring positioning seat 33. Then, the outer dimension detection step is performed: after the first photoelectric sensor 36 detects the guide ring on the guide ring positioning seat 33, it sends a signal to the control unit. The control unit starts the first motor 34, which drives the guide ring positioning seat 33 to rotate the guide ring around its own axis. The guide ring rotates, and simultaneously, several image measuring instruments 35 on the support base 31 are activated. The image measuring instruments 35 perform omnidirectional scanning and measurement of the outer contour of the guide ring during the rotation process, and transmit the measured outer diameter, thickness, and other external dimensional data of the guide ring to the control unit in real time. The control unit analyzes and processes the data to determine whether the outer dimensions of the guide ring meet the standard. After the external dimension detection is completed, the second handling step is entered: the control unit controls the second group of handling mechanisms 2 to operate according to the motion principle of the first group of handling mechanisms 2. Its pneumatic gripper 25 grabs the guide ring on the guide ring positioning seat 33, moves it to the guide ring mounting seat 42 of the gauge inspection mechanism 4, and releases it. Then, the gauge inspection step is performed: after the second photoelectric sensor 44 detects the guide ring, it feeds back a signal to The control unit activates the first cylinder 47, which drives the pressure block 46 to slide along the slide rail 45 towards the guide ring mounting seat 42. The positioning hole 48 on the pressure block 46 is fitted onto the outside of the guide ring, pressing and fixing the guide ring. Then, the control unit activates the second motor 43, which drives the guide ring mounting seat 42 to rotate the guide ring. If the inner diameter of the guide ring meets the standard and the roundness is qualified, the guide ring can rotate smoothly under the constraint of the positioning hole 48. The second through-beam photoelectric sensor 44 detects the normal rotation signal and feeds it back to the control unit. If the inner diameter of the guide ring is too small or the roundness is out of tolerance, the guide ring cannot rotate smoothly. The second through-beam photoelectric sensor 44 detects the abnormal rotation and feeds it back to the control unit. The control unit determines that the guide ring is a defective product.After the gate gauge inspection is completed, the sorting step begins: The control unit combines the external dimension inspection results and the gate gauge inspection results to make a comprehensive judgment. If the guide ring is defective, the control unit controls the third set of conveying mechanisms 2 to grab the guide ring on the guide ring mounting base 42, move it onto the guide ring conveyor belt 51, and release it. Then, the control unit starts the second cylinder 53, and the output end of the second cylinder 53 extends to push the defective guide ring on the guide ring conveyor belt 51 into the discharge chute 55. The defective guide ring slides into the storage chamber 56 for collection through the discharge chute 55. The third photoelectric sensor 57 detects whether the defective guide ring slides smoothly into the storage chamber 56. If the guide ring is qualified, the control unit controls the third conveying mechanism 2 to place the guide ring directly on the guide ring conveyor belt 51. The guide ring conveyor belt 51 starts and transports the qualified guide ring to the transparent disc 62 of the end face inspection mechanism 6. The qualified guide ring enters the end face inspection step: the transparent disc 62 rotates under the drive of the external drive motor, causing the guide ring to make a circular motion. When the guide ring moves to the inspection area of ​​the first industrial area array camera 65 and the second industrial area array camera 67, the control unit starts the first parallel coaxial light source 66 and the second parallel coaxial light source 68 to provide uniform illumination for image acquisition. The first industrial area array camera 65 acquires images of the upper end face of the guide ring, and the second industrial area array camera 67 acquires images of the lower end face of the guide ring through the transparent disc 62 and the light-transmitting dustproof plate. The acquired end face images are transmitted to the control unit, which uses an image recognition algorithm to determine whether there are defects such as scratches, stains, and cracks on the end face of the guide ring. Finally, the material is discharged. Steps: The guide ring that passes end-face inspection continues to rotate with the transparent disc 62. When it reaches the discharge baffle, it detaches from the transparent disc 62 under the limiting action of the discharge baffle and falls into the inclined discharge chute 7. The guide ring slides along the discharge chute 7 onto the discharge plate 72. When passing through the gap between the height limiting blocks 73, the height limiting blocks 73 perform a final height check on the guide ring. Guide rings that meet the standard height smoothly pass through the gap and complete the discharge. The fourth photoelectric sensor 74 detects the discharge status of the guide ring to ensure smooth discharge.

[0035] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A device for automatically detecting a guide ring, characterized by: Including lower frame (1), the upper frame (12) is equipped on the lower frame (1), and the bottom plate (11) is equipped on the lower frame (1), and the vibration feeding assembly (13) is equipped near the lower frame (1);A plurality of handling mechanisms (2) for guiding ring handling are provided on the bottom plate (11);The feed conveying assembly for guiding ring transport to the handling mechanism (2) is used for sorting the vibration feeding assembly (13);The outer size detection mechanism (3) for guiding ring outer size detection is provided on the bottom plate (11);The gauge detection mechanism (4) for guiding ring specification detection is close to the outer size detection mechanism (3);The discharge assembly for defective product rejection is provided on the bottom plate (11);And the end face detection mechanism (6) for guiding ring end face appearance detection is provided on the bottom plate (11).

2. The automatic guide ring detection device according to claim 1, wherein: The handling mechanism (2) is provided with three groups, and the handling mechanism (2) comprises: a support frame (21) fixed to the bottom plate (11);The connecting plate (22) is provided on the support frame (21);The driving wheel (23) is rotatably provided on the connecting plate (22);One end of the connecting rod (27) is fixedly connected with the driving wheel (23);The connecting rod (24) is rotatably provided on the other end of the connecting rod (27);And the pneumatic clamping jaw (25) is provided on the other end of the connecting rod (24).

3. The automatic guide ring detection apparatus according to claim 2, wherein: The connecting plate (22) is provided with a driven wheel (26), the driving wheel (23) and the driven wheel (26) are provided with a belt, the connecting rod (27) is fixedly connected on the driven wheel (26), and the other end of the connecting rod (27) is rotatably connected with the connecting rod (24), the driven wheel (26) is fixedly connected with a rotating piece (28) on the back of the connecting plate (22), an optical sensor for detecting the rotating state of the rotating piece (28) is arranged, and the adjusting wheel (29) for adjusting the tension of the belt is arranged on the connecting plate (22).

4. The automatic guide ring detection apparatus according to claim 1, wherein: The outer size detection mechanism (3) comprises: a first support (32) provided on the bottom plate (11);The guide ring positioning seat (33) is provided on the first support (32);The first motor (34) for rotating the guide ring positioning seat (33) is arranged below the first support (32);The support seat (31) is arranged on the bottom plate (11) and located below the first support (32);A plurality of image measuring instruments (35) are arranged on the support seat (31) and face the guide ring positioning seat (33);And a plurality of first pair of photoelectric sensors (36) are arranged on the first support (32) and close to the guide ring positioning seat (33).

5. The automatic guide ring detection apparatus according to claim 1, wherein: The gauge detection mechanism (4) comprises: a second support (41) fixedly arranged on the bottom plate (11);The guide ring mounting seat (42) is provided on the second support (41);The second motor (43) for driving the guide ring mounting seat (42) to rotate is arranged;The second pair of photoelectric sensors (44) are arranged on the second support (41) and close to the guide ring mounting seat (42).

6. The automatic guiding ring detection device according to claim 5, characterized in that: The pass rule detection mechanism (4) further comprises: a sliding rail (45) fixed on the second support (41); a pressing block (46) in sliding connection with the sliding rail (45); a first air cylinder (47) fixed on the second support (41) through a mounting seat and having an output end fixedly connected with the pressing block (46); and a positioning hole (48) formed on the pressing block (46) and corresponding to the guide ring mounting seat (42).

7. The automatic guide ring detection apparatus according to claim 1, wherein: The blanking mechanism (5) comprises: a guide ring conveying belt (51) mounted on the bottom plate (11); a supporting plate (52) fixed on the bottom plate (11) and close to the guide ring conveying belt (51); a second air cylinder (53) provided on the top of the supporting plate (52) and facing the guide ring conveying belt (51), wherein an output end of the second air cylinder (53) is provided with a pushing block (54) for pushing the guide ring on the guide ring conveying belt (51) to be blanked; a blanking chute (55) provided on the bottom plate (11) and close to one end of the guide ring conveying belt (51); a storage chamber (56) provided at the other end of the blanking chute (55); and a third pair of photoelectric sensors (57) provided on the blanking chute (55).

8. The automatic guide ring detection apparatus according to claim 1, wherein: The end face detection mechanism (6) comprises: a rotary table seat (61) fixed on the bottom plate (11); a transparent disc (62) provided on the rotary table seat (61) and in rotary connection therewith; a stand (63) provided on the bottom plate (11) and close to the rotary table seat (61); a connecting piece (64) provided on the stand (63) and having a first industrial area array camera (65) with a lens facing the transparent disc (62); a second industrial area array camera (67) provided on the bottom plate (11) below the transparent disc (62) through a mounting seat, wherein a lens of the second industrial area array camera (67) faces the transparent disc (62); and a first parallel coaxial light source (66) and a second parallel coaxial light source (68) provided at intervals between the first industrial area array camera (65), the second industrial area array camera (67) and the transparent disc (62).

9. The automatic guide ring detection apparatus according to claim 8, wherein: The bottom plate (11) is further provided with a discharging mechanism, which comprises: a discharging baffle mounted on the bottom plate (11) through a supporting rod and located above the disc; an inclined discharging chute (7) fixed on the bottom plate (11) below the transparent disc (62) and close to the discharging baffle through a mounting seat; a connecting sheet metal (71) fixed on the discharging chute (7); a discharging plate (72) fixed on the connecting sheet metal (71) and arranged horizontally with the discharging chute (7); height limiting blocks (73) fixed on the discharging plate (72) at intervals through bolts; and a fourth pair of photoelectric sensors (74) provided on the discharging chute (7) and the discharging plate (72).

10. A method for automatically detecting a guide ring, characterized by: The automatic detection device comprises any one of the rights 1-9, and a detection method of the automatic detection device comprises the following steps: S1, feeding step: the guide ring to be detected is placed in the vibration feeding assembly (13), and after being sorted by vibration of the vibration feeding assembly (13), the guide ring is conveyed to below the pneumatic gripper (25) of the first group of carrying mechanisms (2) by the feeding conveying assembly, and waiting for grabbing; S2, first carrying step: the driving wheel (23) of the first group of carrying mechanisms (2) rotates to drive the connecting rod (27) to rotate, the connecting rod (27) drives the connecting rod (24) to displace the pneumatic gripper (25) to above the guide ring in a circular motion, after the pneumatic gripper (25) closes to grab the guide ring, the driving wheel (23) continues to rotate to displace the guide ring to the guide ring positioning seat (33) of the outer dimension detection mechanism (3) through the connecting rod (24), and the pneumatic gripper (25) releases to complete the placement of the guide ring; S3, outer dimension detection step: after the first pair of photoelectric sensors (36) of the outer dimension detection mechanism (3) detects the guide ring on the guide ring positioning seat (33), the first motor (34) starts to drive the guide ring positioning seat (33) to rotate the guide ring, and a plurality of image measuring instruments (35) on the support seat (31) synchronously scan and detect the outer contour dimension of the guide ring in the rotating process to obtain the outer dimension data of the guide ring and transmit the data to the control unit; S4, second carrying step: after the outer dimension detection is completed, the pneumatic gripper (25) of the second group of carrying mechanisms (2) grabs the guide ring on the guide ring positioning seat (33) according to the movement principle of step S2, and displaces to the guide ring mounting seat (42) of the go gauge detection mechanism (4) and releases to place; S5, go gauge detection step: after the second pair of photoelectric sensors (44) of the go gauge detection mechanism (4) detects the guide ring, the first cylinder (47) starts to drive the pressing block (46) to slide along the slide rail (45) to the guide ring mounting seat (42), the positioning hole (48) on the pressing block (46) precisely matches the guide ring to press and fix the guide ring, then the second motor (43) starts to drive the guide ring mounting seat (42) to rotate the guide ring, and through the matching state of the guide ring and the positioning hole (48) in the rotating process and the signal feedback of the second pair of photoelectric sensors (44), the guide ring specification compliance detection is completed, and the detection data is transmitted to the control unit; S6, sorting step: the control unit judges whether the guide ring is qualified according to the outer dimension detection data and the go gauge detection data, if it is a defective product, the third group of carrying mechanisms (2) grabs the guide ring and places it on the guide ring conveying belt (51), then the second cylinder (53) starts to push the defective guide ring into the discharging chute (55), and the guide ring is conveyed to the storage chamber (56) for collection through the discharging chute (55); if it is a qualified product, the third group of carrying mechanisms (2) directly places the guide ring on the guide ring conveying belt (51), and the conveying belt starts to convey the qualified guide ring to the transparent disc (62) of the end face detection mechanism (6); S7, end face detection step: the transparent disc (62) rotates to drive the qualified product guide ring to move in a circle, when the guide ring moves to the detection area of the first industrial area array camera (65) and the second industrial area array camera (67) respectively, the first parallel coaxial light source (66) and the second parallel coaxial light source (68) provide uniform illumination from the upper and lower sides of the transparent disc (62) respectively, the first industrial area array camera (65) collects the image of the upper end face of the guide ring, and the second industrial area array camera (67) collects the image of the lower end face of the guide ring through the transparent disc (62), and the collected end face image is transmitted to the control unit for appearance defect detection; S8, discharging step: after the end face detection is completed, the transparent disc (62) continues to rotate, the guide ring falls to the inclined discharging chute (7) under the limiting action of the discharging baffle, the height limiting block (73) detects the height consistency of the guide ring during the sliding process of the guide ring along the discharging chute (7), the fourth pair of light barrier photoelectric sensors (74) detect the discharging state of the guide ring, and finally the qualified guide ring is discharged through the discharging plate (72).

Images