Small hollow cylinder classification device

Abstract

The invention belongs to the technical field of hollow cylinder part classification, and particularly discloses a small hollow cylinder classification device which comprises a vibration disc, the vibration disc comprises a material disc and a spiral track, the spiral track is arranged on the inner wall of the material disc in a winding mode, and the vibration disc further comprises a transfer bin, a sorting track, a sorting gear and an output track. An inlet of the transfer bin is connected with the spiral track, a guide groove is formed in the bottom of the transfer bin, an outlet of the guide groove is connected with the sorting track, and a sorting gear is arranged at the other end of the sorting track and arranged at the tail end of the sorting track. The input side of the sorting gear is correspondingly connected with the sorting track, the output side of the sorting gear is connected with the output track, the sorting gear is used for picking up the hollow cylindrical parts at the tail end of the sorting track and transferring the hollow cylindrical parts to one side of the output track, and the tail end of the output track is connected with an inlet of the cache mechanism; according to the device, the accuracy, high efficiency and reliability of classification, detection and unloading of the hollow cylindrical parts are improved.

Description

Technical Field

[0001] This invention belongs to the technical field of hollow cylindrical parts classification, specifically relating to a small hollow cylindrical parts classification device. Background Technology

[0002] In existing technologies, with the development of aerospace and electronic communication engineering, electrical connectors, as fundamental components for transmitting electrical signals and energy, are increasingly widely used in systems, leading to increasingly higher reliability requirements for plug-in products. Simultaneously, with the development of automation technology, the requirements for equipment operating efficiency are also gradually increasing. Improving quality and efficiency has become a new direction and requirement, and the realization of automation technology must also aim at this goal, striving for excellence to meet user needs. The automated production process of plug-in pin components requires process monitoring and online testing to achieve parameterized and digital production process control. With the increase in the types of testing technologies, the accuracy, efficiency, and reliability requirements for the classification, testing, and unloading of plug-in pin components also increase. During the testing process, the holes at both ends of the plug-in pin components need to be inspected to prevent deformation or the entry of foreign objects, thereby ensuring the insertion performance of the plug-in pin components. Summary of the Invention

[0003] The purpose of this invention is to solve the problems existing in the prior art and provide a small hollow cylinder sorting device. Through structural optimization and improvement, this device realizes the sorting, detection and process monitoring of small hollow cylindrical parts, and improves the accuracy, efficiency and reliability of sorting, detection and unloading of parts.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: a small hollow cylindrical sorting device, comprising a vibratory feeder, the vibratory feeder including a material tray and a spiral track, the spiral track being wound around the inner wall of the material tray, the vibratory feeder further including a transfer bin, a sorting track, a sorting gear, and an output track, the inlet of the transfer bin being connected to the spiral track, the bottom of the transfer bin having a guide groove, the outlet of the guide groove being connected to the sorting track, the other end of the sorting track having a sorting gear, the sorting gear being located at the end of the sorting track; the input side of the sorting gear being connected to the sorting track, the output side of the sorting gear being connected to the output track, used to pick up hollow cylindrical parts at the end of the sorting track and transfer them to the output track side, the end of the output track being connected to the inlet of the buffer mechanism; The buffer mechanism includes a guide tube connected to the end of the output track. The guide tube is used for conveying and temporarily storing hollow cylindrical parts. A pressing mechanism is provided at the end of the guide tube. The pressing mechanism is used to stop and buffer the hollow cylindrical parts inside the guide tube. The end of the guide tube is connected to a feeding mechanism. The feeding mechanism is used to clamp and transfer the output hollow cylindrical parts to a handling mechanism. The handling mechanism sends the hollow cylindrical parts to a detection mechanism for detection. The inspection mechanism includes a first inspection station and a second inspection station. The transport mechanism transports the hollow cylindrical part to the first inspection station, which is used to inspect whether the inner hole of the small hole end of the hollow cylindrical part is deformed or has foreign objects. The transport mechanism transports the hollow cylindrical part to the second inspection station, which is used to inspect whether the inner hole of the large hole end of the hollow cylindrical part is deformed or has foreign objects.

[0005] As a preferred embodiment, the sorting gear includes a gear body, sorting teeth, and protective limiting teeth. The sorting teeth are arranged around the outer edge of the gear body, and the protective limiting teeth are arranged between two adjacent sorting teeth. A clamping gap is formed between the protective limiting teeth and the sorting teeth for the passage of the cylindrical wall of the hollow cylindrical parts.

[0006] As a preferred embodiment, the sorting teeth are radially arranged racks with a consistent width from the head end to the tail end, the protective limiting teeth are fan-shaped structures, and the width of the clamping gap is consistent in the radial direction.

[0007] As a preferred embodiment, the feeding mechanism includes a feeding gripper and a gripper cylinder for controlling the opening and closing of the feeding gripper. The receiving platform is located below the pressing mechanism. The feeding gripper can move between a starting position and a ending position. When the feeding gripper moves to the starting position, it is located between the receiving platform and the outlet of the pressing mechanism, allowing the hollow cylindrical part to fall into the feeding gripper and be placed on the receiving platform. When the feeding gripper holds the hollow cylindrical part and moves it to the ending position, it connects with the conveying mechanism to realize the transfer of the hollow cylindrical part.

[0008] As a preferred embodiment, the pressing mechanism includes a pressing seat and an ejector pin assembly. The inlet of the pressing seat is connected to the end of the guide tube, and a pressing chamber is provided through the interior of the pressing seat. A through sliding hole is formed on the side wall of the pressing chamber. The ejector pin assembly includes a pressing cylinder and an ejector pin. The pressing cylinder is used to drive the ejector pin to move within the sliding hole, thereby pressing or releasing the hollow cylindrical part located in the pressing chamber to achieve material stop or material drop.

[0009] As a preferred embodiment, an inner boss is formed in the sliding hole, and an outer boss is formed on the outer wall of the ejector pin. The outer boss and the inner boss cooperate to form a stop and limit function along the ejector pin pressing direction.

[0010] As a preferred embodiment, an optical fiber for positioning detection is provided on the upper side of the receiving platform. The optical fiber for positioning detection is used to detect and acquire the signal that the hollow cylindrical part is conveyed to the feeding gripper, and to control the pin of the pressing mechanism to extend into the pressing chamber according to the signal, so as to stop the hollow cylindrical part in the pressing chamber.

[0011] As a preferred embodiment, the feed tube is equipped with a full load detection sensor to determine whether the feed tube is full of hollow cylindrical parts, so as to control the vibratory feeder to pause or start the conveying of hollow cylindrical parts.

[0012] As a preferred embodiment, the conveying mechanism includes a conveying gripper, which is used to connect with a feeding gripper to convey the hollow cylindrical part to the inspection mechanism, which is used to determine whether the hollow cylindrical part is qualified.

[0013] As a preferred embodiment, the hollow cylindrical part includes a large hole at the first end and a small hole at the second end, wherein the inner diameter of the large hole is larger than the inner diameter of the small hole.

[0014] As a preferred embodiment, the sorting gear is used to pick up and transfer hollow cylindrical parts with the large-hole end facing the conveying direction on the sorting track to the output track.

[0015] As a preferred embodiment, the first and second detection stations include a needle holder and a detection needle assembly disposed on the needle holder. The needle holder has a movable cavity for mounting the detection needle assembly. A detection cavity is disposed below the movable cavity. The first end of the detection needle assembly is used to engage with a hollow cylindrical part. The probe of the detection needle assembly can move along the movable cavity. When the hollow cylindrical part deforms toward the end of the detection needle assembly or contains foreign objects, the second end of the probe of the detection needle assembly can be pushed into the detection cavity by the hollow cylindrical part.

[0016] As a preferred embodiment, the detection needle assembly includes a probe, a spring, and a retaining ring. The first end of the spring passes through the probe and abuts against the support platform on the outer wall of the probe, while the other end abuts against the retaining ring fixedly disposed in the movable cavity.

[0017] As a preferred embodiment, the diameter of probe I at the first inspection station matches the small hole end of the hollow cylindrical part, and the diameter of probe II at the second inspection station matches the large hole end of the hollow cylindrical part. If probes I and II can smoothly enter the corresponding holes of the hollow cylindrical part, probes I and II will not be pushed into the detection cavity; if probes I and II cannot smoothly enter the corresponding holes of the hollow cylindrical part, probes I and II will be pushed into the detection cavity after being pressed.

[0018] As a preferred embodiment, a quality detection optical fiber is provided on the side of the detection cavity. The quality detection optical fiber is used to determine whether the corresponding hole end of the hollow cylindrical part is qualified by whether the lower end of the probe enters the detection cavity.

[0019] As a preferred embodiment, the system further includes a receiving mechanism and a sorting mechanism. The receiving mechanism includes an openable receiving box, which is connected to the sorting mechanism via a discharge channel. The sorting mechanism includes a sorting flow channel box, which is provided with different flow channels. The sorting flow channel box is rotatable, which allows the inlets of different flow channels to be connected to the outlets of the discharge channel.

[0020] As a preferred embodiment, the sorting flow box is connected to the rotating shaft of the sorting motor, and the internal cavity of the sorting flow box is divided into four flow channels by a partition; wherein the four flow channels of the sorting flow box are respectively used to convey qualified parts with two holes, qualified parts with large holes, qualified parts with small holes, and unqualified parts with two holes.

[0021] As a preferred embodiment, each flow channel sidewall is provided with a corresponding position detection hole, and a position detection optical fiber is provided on one side of the sorting flow channel box. Each position detection optical fiber is provided with a corresponding position detection hole. The position detection optical fiber is used to detect, judge and provide feedback on the rotation position of the flow channel.

[0022] Beneficial effects This invention, through optimized structural design, achieves coordinated processing of multiple steps including initial selection, buffering, feeding, handling, inspection, and sorting of hollow cylindrical parts, thereby improving sorting efficiency and enhancing the accuracy and reliability of the sorting results. Firstly, the scheme utilizes a sorting track, sorting gears, and output track to initially select parts with their large-hole ends facing the conveying direction. The sorting gears automatically remove parts with incorrect placement, laying the foundation for improved sorting efficiency and accuracy and providing directional references for subsequent part inspection. Secondly, the use of a pressing mechanism and guide pipe enables temporary storage of initially selected parts, solving the problem of continuous feeding in subsequent processes and improving the seamlessness and efficiency of feeding. Simultaneously, the pressing mechanism, with its stop design, facilitates control and prevents temporary storage from affecting subsequent processes, achieving seamless stopping and dropping of hollow cylindrical parts. The parts are dropped into the feeding grippers on the support platform for subsequent feeding, shortening the feeding time interval. By combining the handling gripper with the inspection mechanism, efficient inspection of the inner holes at both ends of small hollow cylindrical parts is achieved. Through the cooperation of the handling gripper and the probe, the quality inspection and judgment of hollow cylindrical parts after initial selection is realized, and the inspection of the corresponding hole ends of hollow cylindrical parts is completed. This not only realizes the automation of parts inspection, but also improves the reliability and accuracy of the parts quality inspection results. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of the invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 This is an overall structural diagram of the classification device of the present invention; Figure 2 This is a structural diagram of the vibratory feeder, pressing mechanism, and feeding mechanism in this invention; Figure 3 This is a structural diagram of the sorting gear in this invention; Figure 4 This is a diagram showing the internal structure of the pressing mechanism in this invention; Figure 5 This is a structural diagram of the conveying mechanism, detection mechanism, receiving mechanism, sorting mechanism, and holding box in this invention; Figure 6 This is a structural diagram of the first or second detection station in this invention; Figure 7 This is a cross-sectional view of the first or second detection station in this invention; Figure 8 This is a partially enlarged cross-sectional view of the first detection station in this invention; Figure 9 This is a partially enlarged cross-sectional view of the second detection station in this invention; Figure 10 This is a structural diagram of the material receiving mechanism in this invention; Figure 11 This is a cross-sectional view of the receiving mechanism in this invention; Figure 12 This is a structural diagram of the sorting mechanism and the holding box in this invention; Figure 13 This is a structural diagram of the classification mechanism in this invention; Figure 14 This is a structural diagram of the classification flow channel box in this invention; Figure 15 This is a cross-sectional view of the classification flow channel box in this invention; Marked in the image: 1. Vibratory feeder; 11. Material tray; 12. Spiral track; 13. Transfer bin; 131. Guide groove; 14. Sorting track; 15. Sorting gear; 151. Gear body; 152. Sorting tooth; 153. Protective limit tooth; 154. Clamping gap; 16. Output track; 17. Sorting motor. 2. Buffer mechanism, 21. Guide tube, 22. Pressing mechanism, 221. Pressing seat, 222. Sliding hole, 223. Ejector pin, 224. Pressing cylinder, 225. Inner boss, 226. Outer boss, 227. Pressing bin, 24. Receiving platform, 25. Full load detection sensor, 26. Position detection fiber optic cable; 3. Feeding mechanism; 31. Feeding gripper; 32. Gripper cylinder; 33. Slide table cylinder; 4. Conveying mechanism; 41. Conveying gripper; 42. Tilting assembly; 43. Vertical movement assembly; 44. Horizontal movement assembly; 5. Testing mechanism; 51. First testing station; 52. Second testing station; 53. Needle holder; 531. Movable cavity; 532. Testing cavity; 54. Testing needle assembly; 541. Probe; 5411. Probe I; 5412. Probe II; 542. Spring; 543. Retaining ring; 544. Support platform; 55. Quality testing optical fiber. 6. Receiving mechanism; 61. Receiving box; 611. Split box I; 612. Split box II; 62. Discharge channel; 621. Receiving funnel; 622. Discharge seat; 63. Drive shaft; 64. Driven shaft; 65. Drive gear; 66. Driven gear; 67. Buffer motor; 68. Presence / absence detection fiber optic cable. 7. Sorting mechanism; 71. Sorting flow box; 711. Partition; 712. Flow channel; 713. Position detection hole; 72. Sorting motor; 73. Position detection fiber optic cable; 74. Counting detection fiber optic cable. 8. Container box; 100. Hollow cylindrical part; 101. Large hole end; 102. Small hole end. Detailed Implementation

[0025] The present invention will now be described in detail through exemplary embodiments. However, it should be understood that, without further description, elements, structures, and features in one embodiment may be advantageously incorporated into other embodiments.

[0026] It should be noted that, unless otherwise defined, the technical or scientific terms used herein should have the ordinary meaning understood by one of ordinary skill in the art to which this invention pertains. The terms "a," "an," or "the," and similar words used in the specification and claims of this patent application do not express a limitation of quantity, but rather indicate the presence of at least one. Terms such as "comprising" or "including" indicate that the elements or objects preceding "comprising" encompass the elements or objects listed following "comprising" or "including" and their equivalents, but do not exclude other elements or objects having the same function.

[0027] Before introducing the device of this solution, the structure of the hollow cylindrical part 100 to be sorted in this solution is first explained: The hollow cylindrical part 100 in this solution is a connector, which is a small-sized hollow cylindrical structure with two ends, namely a large hole end 101 and a small hole end 102. The inner diameter of the large hole end 101 is larger than the inner diameter of the small hole end 102. In order to ensure the pass rate of the hollow cylindrical part 100, it is necessary to detect whether the two ends of the hollow cylindrical part 100 are deformed or whether there are foreign objects in the hole. This solution determines whether the part (hollow cylindrical part 100) is qualified by detecting the internal dimensions of the two end holes and whether they are blocked, so that it can meet the insertion performance required by the connector.

[0028] As shown in the figure, this invention provides a small hollow cylindrical sorting device, including a vibratory feeder 1 and a buffer mechanism 2. The component outlet of the vibratory feeder 1 is connected to the receiving port of the buffer mechanism 2. The vibratory feeder 1 includes a material tray 11, a spiral track 12, a transfer chamber 13, a sorting track 14, and an output track 16. The spiral track 12 is coiled inside the material tray 11 and is inclined upward along the inner wall of the material tray 11. The material is output in an orderly manner through the vibration of the vibrator, thereby sorting the hollow cylindrical components 1 at the bottom of the vibratory feeder 1. The hollow cylindrical part 100 is gradually conveyed from the bottom to the upper transfer chamber 13. The transfer chamber 13 is a chamber structure that protrudes outward from the material tray 11. The bottom of the transfer chamber 13 is provided with an arc-shaped guide groove 131. The hollow cylindrical part 100 will gradually move into the guide groove 131. Since the guide groove 131 is located at the lower position in the transfer chamber 13, the hollow cylindrical part 100 gradually and automatically moves into the guide groove 131 of the transfer chamber 13, and the length direction of the hollow cylindrical part 100 will gradually and automatically arrange itself along the length direction of the groove. The sorting track 14 is an arc-shaped guide rail, which is gradually inclined downwards along the conveying direction. The end of the sorting track 14 is close to the input side of the sorting gear 15 and located at the upper edge of the input side of the sorting gear 15, making it easier for the parts to be picked up by the sorting gear 15. The sorting track 14 is provided with a track groove for conveying parts. The track groove is used to convey parts according to a specific placement orientation. For example, the orientation of the parts is basically set along the conveying direction of the track groove. Therefore, the sorting track... The head end of the sorting track 14 is connected to the trough structure of the transfer chamber 13. Near the end of the sorting track 14, a sorting gear 15 is connected. The weight of the hollow cylindrical part 100 inside the sorting track 14, combined with the guiding effect of the sorting track 14 and the auxiliary effect of vibration, makes it easier for the hollow cylindrical part 100 to be picked up by the sorting gear 15 when it rotates. A sorting motor 17 is provided on the side wall of the tray 11. The output shaft of the sorting motor 17 is connected to the shaft of the sorting gear 15 to drive the sorting gear 15 to rotate.When the sorting gear 15 rotates to a specific position on the input side, the length direction of the sorting tooth 152 on its outer edge is aligned with the conveying direction at the end of the sorting track 14, thus smoothly sorting out parts that conform to the placement orientation (large hole end 101 facing forward) on the sorting track 14. Parts that do not conform to the placement orientation will fall back into the bottom of the vibratory feeder 1 from the sorting track 14. Specifically, the width of the sorting tooth 152 of the sorting gear 15 allows it to smoothly insert into the large hole end 101 of the hollow cylindrical part 100, but it cannot insert into the small hole. At end 102, the sorting gear 15 rotates the sorted hollow cylindrical parts 100 from one side to the other, thus reversing the conveying direction of the hollow cylindrical parts 100. The parts then fall onto the output track 16 via the sorting teeth 152 of the sorting gear 15. The input end of the output track 16 is located near the output side of the sorting gear 15 and slightly below its edge. Because of this reversal, the hollow cylindrical parts 100 have their small hole end 102 facing the same direction as their movement on the output track 16 (small hole end 102 facing forward). They then enter the guide tube 21 through the output track 16 for sorting and temporary storage. This design ensures that the conveying mechanism 4 initially clamps the hollow cylindrical parts 100 with the small hole end 102 facing downwards, providing a directional reference for subsequent detection by the inspection mechanism 5.

[0029] In this scheme, the structure of the sorting gear 15 is as follows: it includes a gear body 151 and sorting teeth 152 and protective limiting teeth 153 arranged around the outer edge of the gear body 151. Both the sorting teeth 152 and the protective limiting teeth 153 are arranged radially outward from the gear body 151. The function of the sorting teeth 152 is that, due to their own weight and vibration, the hollow cylindrical part 100, when correctly positioned on the sorting track 14, moves forward and locks onto the head end of the sorting teeth 152, smoothly fitting onto them. As the sorting gear 15 rotates, the hollow cylindrical part 100 is transferred to the output end and falls onto the output track 16. The output track 16 is gradually inclined downward along the conveying direction. The hollow cylindrical parts 100 will slide down into the guide tube 21 in sequence on the output track 16 due to their own weight and vibration. A clamping gap 154 ​​is formed between the protective limiting tooth 153 and the sorting tooth 152 for the hollow cylindrical parts 100 to pass through. The head end of the sorting tooth 152 is a rounded chamfer transition, so that the hollow cylindrical parts 100 that are oriented correctly can be easily put into the sorting tooth 152. After rotating with the sorting tooth 152 to the other side of the sorting gear 15, the hollow cylindrical parts 100 separate from the sorting tooth 152 and fall into the output track 16.

[0030] In this scheme, the buffer mechanism 2 includes a guide pipe 21 and a pressing mechanism 22. The guide pipe 21, through docking with the output rail 16, gradually conveys hollow cylindrical parts 100 that conform to the placement direction into the guide pipe 21 for sequential placement. The pressing mechanism 22 is located at the end of the guide pipe 21 and includes a pressing seat 221, a pressing cylinder 224, and a ejector pin 223. The pressing seat 221 has a pressing chamber 227 that runs through it. The inlet of the pressing chamber 227 is docked with the guide pipe 21, and the outlet of the pressing chamber 227 is connected to the receiving platform 24. The side wall of the pressing chamber 227 is provided with a sliding hole 222. The piston end of the pressing cylinder 224 is connected to the ejector pin 223 through a crank arm. The pressing cylinder 224 is used to drive the ejector pin 223 to move within the sliding hole 222, thereby pressing or releasing the hollow cylindrical parts 100 in the pressing chamber 227 to achieve material stop or drop. A feeding gripper 31 is provided between the pressing bin 227 and the receiving platform 24. The hollow cylindrical parts 100 in the pressing bin 227 can fall smoothly into the feeding gripper 31, which clamps the hollow cylindrical parts 100 and sends them to the next process. A full load detection sensor 25 is also provided on the guide pipe 21. The full load detection sensor 25 is used to detect whether the hollow cylindrical parts 100 inside the guide pipe 21 are fully loaded by metal induction. If the full load is detected, the vibratory feeder 1 stops feeding.

[0031] In this embodiment, the outer cylindrical surface of the ejector pin 223 is provided with an outer boss 226, and the interior of the sliding hole 222 is provided with an inner boss 225. The outer boss 226 and the inner boss 225 cooperate to form a stop and limit function along the pressing direction of the ejector pin 223. This protects the parts from deformation caused by excessive extrusion force from the ejector pin 223. The ejector pin 223 only provides extrusion force for temporarily fixing the hollow cylindrical part 100 in the pressure chamber 227.

[0032] In this scheme, an optical fiber 26 for positioning detection is provided on one side above the receiving platform 24. This fiber is used to detect and acquire the signal that the hollow cylindrical part 100 is conveyed into the feeding gripper 31. Based on the signal, the pin 223 of the pressing mechanism 22 is controlled to extend into the pressing chamber 227 to press the hollow cylindrical part 100. That is, by stopping the material from the adjacent parts above the hollow cylindrical part 100 on the receiving platform 24, the feeding gripper 31 can transport the parts on the receiving platform 24 to the next station. After the feeding gripper 31 returns to the top of the receiving platform 24, the ejector pin 223 is released, and the hollow cylindrical part 100 inside the pressure chamber 227 will smoothly enter between the two grippers of the feeding gripper 31. After the hollow cylindrical part 100 is in place, the ejector pin 223 extends into the pressure chamber 227 again to stop the material from the hollow cylindrical part 100 inside. The hollow cylindrical part 100 adjacent to the bottom of the pressure mechanism 22 is transferred to the next process by the feeding gripper 31. This cycle is repeated to achieve buffer transfer feeding.

[0033] In this scheme, the feeding mechanism 3 includes a feeding gripper 31, a gripper cylinder 32, and a slide cylinder 33. The gripper cylinder 32 controls the opening and closing of the feeding gripper 31. The hollow cylindrical part 100 falls from the pressure chamber 227 into the gap between the two grippers of the feeding gripper 31. After the arrival detection fiber optic 26 detects that the part has arrived, the feeding gripper 31 clamps and fixes the hollow cylindrical part 100. The base of the gripper cylinder 32 is fixedly installed on the slide cylinder 33, which pushes it forward horizontally. The feeding gripper 31 clamps the hollow cylindrical part 100 and sends it into the connection of the conveying mechanism 4. Then, the feeding gripper 31 transfers the part to the conveying gripper 41, and then the conveying gripper 41 clamps the hollow cylindrical part 100 for subsequent inspection.

[0034] In a typical embodiment of the present invention, the conveying mechanism 4 includes a conveying gripper 41, a horizontal moving component 44, a vertical moving component 43, and a flipping component 42. The conveying gripper 41 is mounted on a rotary cylinder to form the flipping component 42, which is used to realize the flipping action of the hollow cylindrical part 100. The flipping component 42 is fixedly mounted on the vertical moving platform on the vertical moving component 43. The vertical moving component 43 is used to realize the lifting and lowering movement of the conveying gripper 41, and at the same time realizes the detection process in conjunction with the detection mechanism 5. The vertical moving component 43 is mounted on the horizontal moving platform on the horizontal moving component 44. The horizontal moving component 44 is used to realize the horizontal movement of the conveying gripper 41, thereby transferring and conveying the parts between two detection stations.

[0035] The present invention also includes a detection mechanism 5, which works in conjunction with a transport mechanism 4 to achieve quality inspection of the hollow cylindrical part 100. The transport mechanism 4 uses a transport gripper 41 to pick up the hollow cylindrical part 100 sent by the feeding mechanism 3. The vertical moving component 43 and the horizontal moving component 44 move in coordination with each other. The transport gripper 41 picks up the product part sent by the feeding gripper 31 and transports it to the detection position.

[0036] In this scheme, the testing mechanism 5 includes a first testing station 51 and a second testing station 52. The structures of the first testing station 51 and the second testing station 52 are basically the same, except that the diameters of the probe tips (upper end in the figure) of the first testing station 51 and the second testing station 52 are different, so that the first testing station 51 and the second testing station 52 can be adapted to the two end holes of different diameters of the hollow cylindrical part 100 respectively.

[0037] In this design, both the first detection station 51 and the second detection station 52 include a needle holder 53 and a detection needle assembly 54 disposed on the needle holder 53. The needle holder 53 forms a movable cavity 531 for mounting the detection needle assembly 54. A detection cavity 532 is disposed below the movable cavity 531. The probe tip of the detection needle assembly 54 is used to mate with the hollow cylindrical part 100. The probe 541 can move along the movable cavity 531, and the lower end (tail end) of the probe 541 can be pressed into the detection cavity 532. The detection needle assembly 54 includes a probe 541, a spring 542, and a retaining ring 543. The spring 542 passes through the tail end of the probe 541. The first end of the spring 542 abuts against the support platform 544 on the outer wall of the probe 541, and the second end of the spring 542 abuts against the retaining ring 543 fixedly disposed in the movable cavity 531. When the detection probe assembly 54 is not subjected to external force, the upper end of the probe 541 extends out of the movable cavity 531, and its lower end enters the retaining ring 543. The probe 541 of the first detection station 51 is probe I 5411, the diameter of the head end of probe I 5411 is adapted to the small hole end 102 of the hollow cylindrical part 100, and the probe 541 of the second detection station 52 is probe II 5412, the diameter of the head end of probe II 5412 is adapted to the large hole end 101 of the hollow cylindrical part 100. A quality detection optical fiber 55 is provided on the side of the detection cavity 532. The quality detection optical fiber 55 determines whether the end hole of the component is qualified based on whether the probe 541 is pressed down and moved to the detection area of ​​the detection cavity 532.

[0038] In this solution, the horizontal moving component 44 drives the handling gripper 41 to convey the hollow cylindrical part 100 to the first detection station 51. The first detection station 51 is used to detect whether the inner hole of the small-hole end 102 of the hollow cylindrical part 100 is deformed or has foreign objects. The handling gripper 41 conveys the hollow cylindrical part 100 to the second detection station 52. The second detection station 52 is used to detect whether the inner hole of the large-hole end 101 of the hollow cylindrical part 100 is deformed or has foreign objects. When the detection mechanism 5 detects a part with different hole sizes at both ends, by combining the differences in the hole sizes at both ends of the part, different diameters of the detection probes at the two detection stations are designed. The first detection station 51 is adapted to the size of the small-hole end 102, and the second detection station 52 is adapted to the size of the large-hole end 101. When detecting the small-hole end 102 first, if the head end of the probe I 5411 at the first detection station 51 can enter the hole of the small-hole end 102, it means that there is no deformation or foreign objects in the hole of the small-hole end 102. On the contrary, when the probe I 5411 cannot enter the hole of the small-hole end 102, the probe I 5411 compresses the spring 542, causing the probe I 5411 to drop to the quality detection optical fiber 55, and it is judged that there is deformation or foreign objects at this end hole. After the detection of the small-hole end 102 is completed, the rotary cylinder drives the handling gripper 41 to rotate 180 degrees. The hollow cylindrical part 100 is transferred above the second detection station 52 through the horizontal moving component 44. When detecting the size of the large-hole end 101 again, if the head end of the probe II 5412 at the large-hole end 101 can enter the hole of the large-hole end 101, it means that there is no deformation or foreign objects in the hole of the large-hole end 101. Otherwise, the probe II 5412 compresses the spring 542, and the tail end of the probe II 5412 drops to the quality detection optical fiber 55, and it is judged that there is deformation or foreign objects at this end hole.

[0039] In this solution, when the hole end of the hollow cylindrical part 100 is not deformed and has no foreign objects, the vertical moving component 43 drives the hollow cylindrical part 100 to press down. The probe 541 corresponds to the end hole of the hollow cylindrical part 100. The probe 541 can smoothly enter the detection hole of the product part, and the probe 541 will not be pressed down and moved to the quality detection optical fiber 55, and it is judged that this end of the product part is qualified. When the hollow cylindrical part 100 is deformed or blocked by foreign objects, the vertical moving component 43 drives the hollow cylindrical part 100 to press down. The probe 541 corresponds to the end hole of the hollow cylindrical part 100. The hollow cylindrical part 100 moves downward along with the vertical moving component 43. If the probe 541 cannot enter the end hole of the product part, then subsequently the probe 541 will be pressed down and moved to the detection cavity 532, and the spring 542 is also compressed. The quality detection optical fiber 55 detects the signal of the probe 541, and it is judged that this end of the component is unqualified. After the detection, the hollow cylindrical part 100 rises upward along with the vertical moving component 43, and the spring 542 also resets, and the probe 541 resets to its original position to prepare for the next detection.

[0040] In this design, the conveying gripper 41 delivers the inspected hollow cylindrical part 100 to the receiving mechanism 6. The receiving mechanism 6 includes a receiving box 61 and a buffer motor 67. The receiving box 61 is a rotating and opening structure composed of two separate boxes. Driven by the buffer motor 67, the opening and closing of the receiving box 61 enables the temporary storage and unloading of the hollow cylindrical part 100 by the two separate boxes. A sorting mechanism 7 is located below the receiving box 61. Based on the inspection and sorting of the hollow cylindrical part 100 by the inspection mechanism 5, it includes four categories of product quality characteristics: qualified parts with two holes, qualified parts with large holes, qualified parts with small holes, and unqualified parts with two holes. The sorting mechanism 7 enables different hollow cylindrical parts 100 to be classified through different flow channels.

[0041] In this scheme, the receiving mechanism 6 can adopt the following structure: the buffer motor 67 is fixed on the motor fixing plate, the output shaft of the buffer motor 67 is connected to the drive shaft 63, the drive shaft 63 and the driven shaft 64 are arranged in parallel, and the drive shaft 63 and the driven shaft 64 are respectively provided with meshing drive teeth 65 and driven teeth 66. The drive shaft 63 and the driven shaft 64 are respectively fixedly connected to two split boxes of the receiving box 61. The split box I 611 and the split box II 612 can be opened and closed, thereby realizing the buffering and unloading of the hollow cylindrical part 100. Driven by the buffer motor 67, the two split boxes are driven to open and close. The receiving box 61 is closed after rotation to realize the receiving buffer. The presence or absence detection fiber optic 68 is used to determine whether there is material inside the receiving box 61. The presence or absence detection fiber optic 68 is located on the inlet side of the receiving box 61. After the receiving box 61 is rotated and opened, it can open to unload materials. After unloading, the hollow cylindrical part 100 enters the sorting mechanism 7 through the feeding channel 62. The feeding channel 62 includes a receiving funnel 621 that is connected to the outlet of the receiving box 61 and a feeding seat 622 for supporting the receiving funnel 621. The discharge port below the feeding seat 622 is connected to the corresponding flow channel inlet of the sorting mechanism 7.

[0042] In this embodiment, the sorting mechanism 7 includes a sorting motor 72 and a sorting flow channel box 71. The sorting flow channel box 71 has different flow channels 712 inside. The sorting motor 72 drives the sorting flow channel box 71 to rotate, thereby switching between the different flow channels 712. The sorting flow channel box 71 has a cylindrical structure, and its internal cavity is divided into four flow channels 712 by a partition 711. Each of the four flow channels 712 corresponds to one of four different components. The inlets of all four flow channels 712 are located on the cylindrical sidewall of the sorting flow channel box 71, the outlets of two flow channels 712 are located on the cylindrical sidewall of the sorting flow channel box 71, and the outlets of the other two flow channels 712 are located on the end face of the sorting flow channel box 71. Each outlet of the sorting flow channel box 71 corresponds to a different holding box 8, thus placing the four different components into four different holding boxes 8.

[0043] In this design, to ensure that the sorting channel box 71 can rotate to a specific position to connect different channels 712 with the unloading channel 62, each channel 712 has a corresponding position detection hole 713 on its side wall. A position detection optical fiber 73 is provided on one side of the sorting channel box 71, and each optical fiber 73 has a corresponding position detection hole 713. The position detection optical fiber 73 is used to detect, judge, and provide feedback on the rotation position of the channel 712 by detecting the position of the position detection hole 713, so as to rotate the receiving port and unloading port of the corresponding channel 712 to the corresponding position. That is, four position detection holes 713 are provided on the outer end face of the sorting channel box 71, and the four position detection optical fibers 73 correspond to the four position detection holes 713 respectively. When a certain optical fiber detects that the corresponding position detection hole is in place, the receiving box 61 opens, and the unloading channel 62 connects with the channel 712 to form a conveying channel, smoothly releasing the corresponding hollow cylindrical part 100 into the corresponding holding box 8 through this conveying channel. In addition, pairs of counting and detection optical fibers 74 are provided at the discharge ports of the four flow channels 712 to count the hollow cylindrical parts 100 entering the corresponding container boxes 8.

[0044] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present invention. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the scope of the present invention.

Claims

1. A small hollow cylindrical sorting device, comprising a vibrating plate (1), the vibrating plate (1) comprising a material tray (11) and a spiral track (12), the spiral track (12) being wound around the inner wall of the material tray (11), characterized in that: The vibratory feeder (1) also includes a transfer chamber (13), a sorting track (14), a sorting gear (15), and an output track (16). The inlet of the transfer chamber (13) is connected to the spiral track (12). A guide groove (131) is formed at the bottom of the transfer chamber (13). The outlet of the guide groove (131) is connected to the sorting track (14). A sorting gear (15) is provided at the other end of the sorting track (14). The sorting gear (15) is located at the end of the sorting track (14). The input side of the sorting gear (15) is connected to the sorting track (14), and the output side of the sorting gear (15) is connected to the output track (16). It is used to pick up the hollow cylindrical part (100) at the end of the sorting track (14) and transfer it to the side of the output track (16). The end of the output track (16) is connected to the inlet of the buffer mechanism (2). The buffer mechanism (2) includes a guide tube (21) connected to the end of the output track (16). The guide tube (21) is used to transport and temporarily store the hollow cylindrical part (100). A pressing mechanism (22) is provided at the end of the guide tube (21). The pressing mechanism (22) is used to stop and buffer the hollow cylindrical part (100) in the guide tube (21). The end of the guide tube (21) is connected to the feeding mechanism (3). The feeding mechanism (3) is used to clamp and transfer the output hollow cylindrical part (100) to the handling mechanism (4). The handling mechanism (4) sends the hollow cylindrical part (100) into the detection mechanism (5) for detection. The testing mechanism (5) includes a first testing station (51) and a second testing station (52). The transport mechanism (4) transports the hollow cylindrical part (100) to the first testing station (51). The first testing station (51) is used to test whether the inner hole of the small hole end (102) of the hollow cylindrical part (100) is deformed or has foreign objects. The transport mechanism (4) transports the hollow cylindrical part (100) to the second testing station (52). The second testing station (52) is used to test whether the inner hole of the large hole end (101) of the hollow cylindrical part (100) is deformed or has foreign objects.

2. The small hollow cylinder sorting device according to claim 1, characterized in that: The sorting gear (15) includes a gear body (151), sorting teeth (152) and protective limiting teeth (153). The outer edge of the gear body (151) is surrounded by sorting teeth (152). The protective limiting teeth (153) are disposed between two adjacent sorting teeth (152). A clamping gap (154) is formed between the protective limiting teeth (153) and the sorting teeth (152) for the passage of the cylindrical wall of the hollow cylindrical part (100).

3. The small hollow cylinder sorting device according to claim 2, characterized in that: The sorting teeth (152) are radially arranged racks with a consistent width from the head end to the tail end, the protective limiting teeth (153) are fan-shaped structures, and the width of the clamping gap (154) is consistent in the radial direction.

4. The small hollow cylinder sorting device according to claim 1, characterized in that: The feeding mechanism (3) includes a feeding gripper (31) and a gripper cylinder (32) for controlling the opening and closing of the feeding gripper (31). The receiving platform (24) is located below the pressing mechanism (22). The feeding gripper (31) can move between the starting position and the ending position. When the feeding gripper (31) moves to the starting position, the feeding gripper (31) is located between the receiving platform (24) and the outlet of the pressing mechanism (22) for the hollow cylindrical part (100) to fall into the feeding gripper (31) and be placed on the receiving platform (24). When the feeding gripper (31) clamps the hollow cylindrical part (100) and moves it to the ending position, the feeding gripper (31) is connected to the conveying mechanism (4) to realize the transfer of the hollow cylindrical part (100).

5. A small hollow cylinder sorting device according to claim 1, characterized in that: The pressing mechanism (22) includes a pressing seat (221) and a ejector assembly. The inlet of the pressing seat (221) is connected to the end of the guide tube (21). A pressing chamber (227) is provided inside the pressing seat (221). A through sliding hole (222) is formed on the side wall of the pressing chamber (227). The ejector assembly includes a pressing cylinder (224) and an ejector (223). The pressing cylinder (224) is used to drive the ejector (223) to move in the sliding hole (222), thereby pressing or releasing the hollow cylindrical part (100) located in the pressing chamber (227) to achieve material stop or material drop.

6. A small hollow cylinder sorting device according to claim 5, characterized in that: An inner boss (225) is formed in the sliding hole (222), and an outer boss (226) is formed on the outer wall of the ejector pin (223). The outer boss (226) and the inner boss (225) cooperate to form a stop and limit function along the pressing direction of the ejector pin (223).

7. A small hollow cylinder sorting device according to claim 4, characterized in that: The receiving platform (24) is provided with a positioning detection fiber (26) on its upper side. The positioning detection fiber (26) is used to detect and acquire the signal that the hollow cylindrical part (100) is delivered to the feeding gripper (31), and according to the signal, controls the pin (223) of the pressing mechanism (22) to extend into the pressing chamber (227) to stop the hollow cylindrical part (100) in the pressing chamber (227).

8. A small hollow cylinder sorting device according to claim 1, characterized in that: The feed tube (21) is equipped with a full load detection sensor (25) to determine whether the feed tube (21) is full of hollow cylindrical parts (100) so as to control the vibratory feeder (1) to pause or start the feeding of hollow cylindrical parts (100).

9. A small hollow cylinder sorting device according to claim 4, characterized in that: The conveying mechanism (4) includes a conveying gripper (41), which is used to connect with the feeding gripper (31) to convey the hollow cylindrical part (100) to the detection mechanism (5), which is used to determine whether the hollow cylindrical part (100) is qualified.

10. A small hollow cylinder sorting device according to claim 1, characterized in that: The hollow cylindrical part (100) includes a large hole end (101) at the first end and a small hole end (102) at the second end, wherein the inner diameter of the large hole end (101) is larger than the inner diameter of the small hole end (102).

11. A small hollow cylinder sorting device according to claim 10, characterized in that: The sorting gear (15) is used to pick up and transfer hollow cylindrical parts (100) with the large hole end (101) facing the conveying direction on the sorting track (14) to the output track (16).

12. A small hollow cylinder sorting device according to claim 11, characterized in that: The first detection station (51) and the second detection station (52) include a needle holder (53) and a detection needle assembly (54) disposed on the needle holder (53). The needle holder (53) forms an active cavity (531) for mounting the detection needle assembly (54). A detection cavity (532) is disposed below the active cavity (531). The first end of the detection needle assembly (54) is used to engage with the hollow cylindrical part (100). The probe (541) of the detection needle assembly (54) can move along the active cavity (531). When the hollow cylindrical part (100) is deformed toward the end of the detection needle assembly (54) or contains foreign matter, the second end of the probe (541) of the detection needle assembly (54) can be pushed into the detection cavity (532) by the hollow cylindrical part (100).

13. A small hollow cylinder sorting device according to claim 12, characterized in that: The detection needle assembly (54) includes a probe (541), a spring (542) and a retaining ring (543). The first end of the spring (542) passes through the probe (541) and abuts against the support platform (544) on the outer wall of the probe (541), and the other end abuts against the retaining ring (543) fixedly disposed in the movable cavity (531).

14. A small hollow cylinder sorting device according to claim 13, characterized in that: The diameter of probe I (5411) of the first detection station (51) is matched with the small hole end (102) of the hollow cylindrical part (100), and the diameter of probe II (5412) of the second detection station (52) is matched with the large hole end (101) of the hollow cylindrical part (100). When probes I and II (5411, 5412) can smoothly enter the corresponding holes of the hollow cylindrical part (100), probes I and II (5411, 5412) will not be pushed into the detection cavity (532); when probes I and II (5411, 5412) cannot smoothly enter the corresponding holes of the hollow cylindrical part (100), probes I and II (5411, 5412) will be pushed into the detection cavity (532) after being pressed.

15. A small hollow cylinder sorting device according to claim 13, characterized in that: The side of the detection cavity (532) is provided with a quality detection fiber (55), which is used to determine whether the corresponding hole end of the hollow cylindrical part (100) is qualified by whether the lower end of the probe (541) enters the detection cavity (532).

16. A small hollow cylinder sorting device according to claim 14, characterized in that: It also includes a receiving mechanism (6) and a sorting mechanism (7). The receiving mechanism (6) includes a receiving box (61) that can be opened and closed. The receiving box (61) is connected to the sorting mechanism (7) below through a feeding channel (62). The sorting mechanism (7) includes a sorting flow box (71) and different flow channels are provided on the sorting flow box (71). The sorting flow box (71) is rotatable and is used to enable the inlet of different flow channels to be connected to the outlet of the feeding channel (62).

17. A small hollow cylinder sorting device according to claim 16, characterized in that: The sorting flow box (71) is connected to the rotating shaft of the sorting motor (72). The internal cavity of the sorting flow box (71) is divided into four flow channels (712) by a partition (711). The four flow channels (712) of the sorting flow box (71) are respectively used to transport qualified parts with two holes, qualified parts with large holes, qualified parts with small holes, and unqualified parts with two holes.

18. A small hollow cylinder sorting device according to claim 17, characterized in that: Each flow channel (712) has a corresponding position detection hole (713) on its sidewall. The classification flow channel box (71) has a position detection fiber (73) on one side. Each position detection fiber (73) has a corresponding position detection hole (713). The position detection fiber (73) is used to detect, judge and provide feedback on the rotation position of the flow channel (712).

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