Automatic detection and sorting device for super-silent bearings

Abstract

The utility model discloses a bearing detection technical field's automatic detection sorting device of super silent bearing, including elevating gear, push material rod, material lifting cylinder, detection motor, steering material tray, sorting tray, sorting cylinder and frame, and form complete production line, can carry out rotation detection to super silent bearing, and will bearing according to design position step by step's march translation, and whole process full automation, can directly butt joint as continuous technological process with bearing automatic production line, convenient to use, operation is efficient, and this device can detect both end surface rotation operation of bearing, can detect the double -sided rotation of every bearing on the production line, ensure that the difference of different end surface stress rotation can be detected, and the device provides the hardware equipment of differentiating automatic classification to different bearings, can sort the super silent bearing of production according to noise size into different grades, and it is convenient for subsequent use according to different grade demand.

Description

Technical Field

[0001] This utility model relates to the field of bearing testing technology, and in particular to an automatic testing and sorting device for ultra-quiet bearings. Background Technology

[0002] Ultra-quiet bearings are mainly used in precision instruments and have higher requirements for stability. Ultra-quiet bearings are actually bearings with very high precision, especially the surface precision of the ball grooves between the inner and outer rings of the bearing, which has extremely stringent requirements.

[0003] Ultra-quiet bearings have very high requirements for every stage of production. However, bumps and scratches can occur at any stage of bearing production. If the ball grooves on the bearing's mating surface are scratched or the machining accuracy is not up to standard, it will cause the bearing to vibrate more significantly. Greater vibration will generate more noise. Therefore, ultra-quiet bearings require high precision. The manufacturing process of ultra-quiet bearings includes cutting, cleaning, transportation, assembly, and trial operation. Ultra-quiet bearings are generally small in size, which makes transportation inconvenient. If they are dropped or bumped, they will damage the bearing rings. During cleaning, the mating surfaces of these ultra-quiet bearings are prone to mutual friction damage. Once scratches appear on the mating surfaces of the ball grooves and bearing rings, it will cause abnormal bearing vibration and fail to achieve the purpose of precise mating and quiet operation. It can only be used for applications with lower operating precision requirements. It is impossible to determine whether the mating surfaces of a fallen bearing are scratched, and even small scratches cannot be accurately judged. Ultra-quiet bearings can only be inspected for their mating precision using a microscope, which is very inconvenient for scratch detection. Therefore, after the bearing is assembled, its operating condition still needs to be tested. This includes not only testing the smoothness of its rotation but also the level of noise it emits. Currently, the testing is difficult and is done manually one by one, which is cumbersome.

[0004] Based on this, this utility model designs an automatic detection and sorting device for ultra-quiet bearings to solve the above problems. Utility Model Content

[0005] The purpose of this invention is to provide an automatic detection and sorting device for ultra-quiet bearings. This device forms a complete production line, capable of rotating and detecting ultra-quiet bearings, and moving the bearings step by step according to the designed position. The entire process is fully automated and can be directly connected to the bearing automated production line for a continuous process flow. It is convenient to use and highly efficient. Moreover, this device can detect the rotation of both ends of the bearing, ensuring that the rotation of each bearing on the production line can be detected from both sides, thus ensuring that the differences in force on different end faces can be detected. Furthermore, this device provides hardware equipment for the differentiated automatic classification of different bearings, which can sort the produced ultra-quiet bearings into different grades according to their noise levels, facilitating subsequent use according to different grade requirements.

[0006] This utility model is implemented as follows: an automatic detection and sorting device for ultra-quiet bearings, comprising: Lifting frame, push rod, top material cylinder, detection motor, steering tray, sorting tray, sorting cylinder and frame; The frame is a stable support platform. Multiple connecting racks are set on the top of the frame. The connecting racks are block-shaped structures. Each connecting rack has a vertically downward guide groove on its top. The guide groove is a narrow channel that is open at the front, back and top. The lifting frame is a support frame. A lifting cylinder is vertically installed at each of the front and rear ends of the lifting frame. The lifting frame is mounted on the frame and can be raised and lowered by the lifting cylinder. A guide block is also fixedly installed on each lifting frame. The push rod is a long rod arranged in the front-to-back direction. A guide groove is provided at each of the front and rear ends of the push rod. The guide groove slides horizontally on the guide block in the front-to-back direction. The push rod is horizontally suspended in the guide block through the guide groove. The bottom of the push rod is provided with multiple push grooves, each of which is a U-shaped groove with an open bottom, and the spacing between each push groove is the same; The push rod and the guide groove are on the same vertical plane, and the push rod can be raised and lowered by a lifting cylinder and suspended directly above the connecting material rack; The steering disc is an elliptical disc with a flat top. A steering groove is opened downwards at the top of the steering disc. The steering groove is a channel that is open at the front, back, and top. A steering motor is vertically installed at the bottom of the steering disc. The steering disc is mounted on the drive shaft of the steering motor and can rotate horizontally. The steering disc is also located directly below the push rod. A connecting rack is provided on both the front and rear sides of the steering material tray; Each of the top material clamps is also provided with a connecting material rack at its front end, and a connecting material rack is also provided between the top material clamp and the turning material plate; A set of detection devices is set at each of the front and rear ends of the steering material plate. Each set of detection devices includes a material-lifting cylinder and a detection motor. The material-lifting cylinder and the detection motor are respectively set on the left and right sides of the push rod. The bottom of the top material cylinder is provided with a translation slider, which is slidably mounted on a guide rail in the left and right direction. The guide rail is horizontally mounted on the frame in the left and right direction. The top material clamp is also vertically fixed on the top of the translation slider, and the top material clamp slides horizontally in the left and right direction along with the translation slider. The top material cylinder extends and retracts horizontally in the left and right direction. The top material clamp has a block-shaped structure, and a material passage groove is vertically opened downward at the top of the top material clamp. The material passage groove forms a narrow channel with openings in the front and back directions and the top inside the top material cylinder; the material passage groove is located directly below the push rod. When the top clamp is in the pushing position, the guide groove and the feed groove form a continuous channel; The top material clamp is also provided with top pushing grooves on the left and right sides. The top pushing grooves are U-shaped grooves and penetrate the top material clamp in the left and right direction. The push groove is located on the extension and retraction path of the push cylinder. The extension and retraction end of the push cylinder is also provided with multiple push blocks. The extension and retraction path of each push block is within the hole range of the push groove. The detection motor is horizontally mounted on the frame, and a drive cone is mounted on the drive shaft of the detection motor. The drive cone is a conical structure that is thinner at the distal end and thicker at the proximal end. The thin end of the drive cone is directly opposite the telescopic end of the top material cylinder. The axis of the drive cone and the axis of the top material cylinder are on the same horizontal straight line. When the ejector clamp is in the inspection position, the multiple ejector blocks abut against the outer ring end face of the bearing sleeved on the drive cone. A noise sensor is installed above the drive cone; The sorting tray is located at the rear end of the frame, and a sorting trough is provided on one side of the sorting tray. The sorting trough is a long strip-shaped channel that is open at the front, back and top, and is closely connected to the rear end of the top material clamp. A waste bin is also provided at the rear end of the sorting trough; The top of the sorting tray has multiple elongated finished product slots that face downwards. Multiple sorting cylinders are arranged on the left side of the sorting slots, and the extension and retraction direction of each sorting cylinder is directly opposite to a finished product slot. The turning trough, conveying trough, sorting trough and guide trough form a complete channel along the front-to-back direction; The push rod slides along the front-to-back direction within the channel formed by the turning trough, the passing trough, the sorting trough, and the guide trough.

[0007] Furthermore, a push block is provided at the top of the push rod, and an installation block is fixed on the lifting frame at the rear end. A push cylinder is fixedly mounted on the installation block. The telescopic end of the push cylinder is connected to the push block, and the push cylinder extends and retracts horizontally in the front-back direction.

[0008] Furthermore, a locking post is provided at the proximal end of the drive cone. The locking post is a round rod and is stably inserted into the inner ring of the bearing being tested. The locking post and the inner ring of the bearing are in clearance fit, with a clearance not exceeding 0.1 mm. A vibration sensor is also installed on the side of the positioning post; Both the noise sensor and the vibration sensor are connected to the controller.

[0009] Furthermore, there are three top blocks arranged in a triangle, each top block facing the drive cone, and the locking pin and the top blocks are clamped on the left and right sides of the outer ring of the bearing inside the push-pull groove. The width d of the feed groove is greater than the inner ring diameter of the bearing and less than the outer ring diameter of the bearing.

[0010] Furthermore, the finished product trough is a V-shaped trough, and each finished product trough is horizontally arranged in the left-right direction, and each finished product trough is parallel to each other on the same plane; Multiple material passage holes are opened at the bottom of the side wall of the sorting tank. The bottom of the material passage holes is flush with the bottom of the sorting tank, and each material passage hole is directly opposite a finished product tank. Each material passage hole is connected to the inner cavity of the sorting tank through a finished product tank. A sorting mechanism is formed by the axis of one material passage hole, one finished product tank, and one sorting cylinder on the same vertical plane. The sorting cylinder and the finished product tank are symmetrically arranged on the left and right sides of the sorting tank. Multiple sorting mechanisms are installed on the sorting tray.

[0011] Furthermore, the width s of the turning trough, the conveying trough, the sorting trough, and the guide trough are all the same in the left and right directions, and are on the same vertical plane; Furthermore, the width s is greater than the bearing thickness, with a difference of no more than 1 mm.

[0012] Furthermore, the connecting material rack is fixed to the top of the machine frame; The connecting rack is a PVC block structure.

[0013] Furthermore, it also includes the push motor, with one push motor installed on each guide rail. The telescopic end of the push motor is connected to the translation slider. The push motor is horizontally arranged in the left-right direction, and the telescopic direction of the push motor is the same as the direction of the guide rail.

[0014] Furthermore, the longitudinal length of the steering disc is greater than its lateral width c, and the left and right ends of the steering trough are tightly connected to the guide grooves they mate with, with a gap not exceeding 0.2mm. The distance between the two connecting material racks is greater than the width c in the left-right direction of the steering material tray.

[0015] The beneficial effects of this utility model are: This utility model uses a lifting frame to cooperate with the push rod for lifting and lowering, so that the unloading rod can be lifted and lowered, and the push cylinder can drive the push rod to extend and retract in the front and back direction, so as to smoothly push the bearing. The push groove at the bottom of the push rod can push the bearing while controlling the displacement, so as to achieve the effect of gradually feeding each bearing. 2. Two sets of testing devices are used to test both sides of the bearing. A steering disc is also added, which can rotate the bearing. The two sets of testing devices work together with the steering disc to press both ends of the bearing against the drive cone, and the inner ring of the bearing is rotated and tested. The outer ring is pressed and fixed by the top block. The noise and vibration of the bearing during operation are also tested, achieving the effect of double-sided full inspection of each bearing and effectively detecting the operating status of the bearing. 3. A sorting tray and a sorting cylinder have also been added. The sorting is carried out by the cylinder. After all the products are inspected and sorted, the bearings in the sorting tank are pushed one by one into the finished product tank to achieve the purpose of sorting. Inspection and sorting are completed in one go, which is more efficient. Attached Figure Description

[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0017] Figure 1 This is a top view of the overall structure of this utility model; Figure 2 This is a front structural diagram of the push rod of this utility model in the raised state; Figure 3 This is a front structural diagram of the push rod of this utility model in a lowered state; Figure 4 This is a schematic diagram of the detection motor part of the detection device of this utility model; Figure 5 This is a schematic diagram of the top-loading clamp structure of this utility model; Figure 6 This is a front structural diagram of the top block distribution of this utility model; Figure 7 This is a front structural diagram showing the positional relationship between the top block and the push groove of this utility model; Figure 8 This is a front view of the material passage hole and bearing assembly of this utility model. Figure 9 This is a schematic diagram of the connecting material rack structure of this utility model; Figure 10 This is a schematic diagram of the steering tray structure of this utility model; Figure 11 This is a schematic diagram of the sorting tray structure of this utility model; Figure 12This is a top view of the top pusher trough, turning trough, sorting trough and guide trough of this utility model in their spliced ​​state.

[0018] The attached diagram lists the components represented by each number as follows: 1-Lifting frame, 11-Guide groove, 12-Guide block, 13-Lifting cylinder, 2-Push rod, 21-Push cylinder, 22-Push groove, 23-Mounting block, 24-Push block, 3-Top cylinder, 31-Top clamp, 311-Push groove, 312-Pass groove, 32-Top block, 33-Transfer slider, 34-Guide rail, 35-Push motor, 4-Detection motor, 41-Drive cone, 42-Noise sensor, 43-Vibration sensor, 44-Positioning post, 5-Steering tray, 51-Steering motor, 52-Steering groove, 6-Sorting tray, 61-Finished product trough, 62-Pass hole, 63-Waste frame, 64-Sorting cylinder, 65-Sorting groove, 7-Frame, 71-Connecting rack, 72-Guide groove, 73-Loading rack. Detailed Implementation

[0019] Please see Figures 1 to 12 As shown, this utility model provides an automatic detection and sorting device for ultra-quiet bearings. To better understand the above technical solution, the following will describe the above technical solution in detail with reference to the accompanying drawings and specific embodiments.

[0020] In a specific embodiment of the technical solution of this utility model: This includes a feeding mechanism, a testing mechanism, and a sorting mechanism; The pushing mechanism includes a lifting frame 1 and a pushing rod 2; The testing mechanism includes a testing motor 4, a top material cylinder 3, and a steering material plate 5; The sorting mechanism includes a sorting tray 6 and a sorting cylinder 64; the above structures belong to the functional category and are all installed on the frame 7.

[0021] 1. Lifting frame; 2. Push rod; 3. Top material cylinder; 4. Detection motor; 5. Steering tray; 6. Sorting tray; 6. Sorting cylinder; 7. Machine frame; The frame 7 is a stable support platform. Multiple connecting racks 71 are set on the top of the frame 7. The connecting racks 71 are block-shaped structures. Each connecting rack 71 has a guide groove 72 vertically opened downwards at the top. The guide groove 72 is a narrow channel with openings at the front, back and top. The connecting racks 71 are fixed to the top of the frame 7. The connecting rack 71 is a PVC block structure; A feeding rack 73 is also provided at the front end of the frame 7. The structure of the feeding rack 73 is the same as that of the connecting rack 71. The feeding rack 73 is closely connected to the front end of the connecting rack 71. The front end of the feeding rack 73 is closely connected to the bearing conveying mechanism. The lifting frame 1 is a support frame. A lifting cylinder 13 is vertically installed at each of the front and rear ends of the lifting frame 1. The lifting frame 1 is mounted on the frame 7 and can be lifted and lowered by the lifting cylinder 13. A guide block 12 is also fixedly installed on each lifting frame 1. The push rod 2 is a long rod arranged in the front-to-back direction. The push rod 2 is horizontally positioned, with a guide groove 11 at each end. The guide grooves 11 slide horizontally on the guide block 12, and the push rod 2 is horizontally suspended within the guide block 12 via the guide grooves 11. A push block 24 is also provided at the top of the push rod 2, and a mounting block 23 is fixed to the lifting frame 1 at the rear end. A push cylinder 21 is fixedly mounted on the mounting block 23, and the telescopic end of the push cylinder 21 is connected to the push block 24. The push cylinder 21 extends and retracts horizontally in the front-to-back direction. The push cylinder 21 drives the push rod 2 to move forward and backward, and the push groove 22 at the bottom continuously pushes the bearing forward.

[0022] The bottom of the push rod 2 is provided with multiple push grooves 22. Each push groove 22 is a U-shaped groove with an open bottom. The interval between each push groove 22 is fixed, which is the spacing a of one bearing forward station. Therefore, each push groove 22 is located at the center directly above the bearing forward station, and the forward and backward translation distance of the push rod 2 is the distance a of one station.

[0023] The distance between workstations is the distance between the turning material chute 52, the conveying material chute 312, and the guide chute 72. The pushing material chute 22 is located above the center of the workstation, that is, from the center of the turning material chute 52 to the center of the front and rear guide chute 72. The distance between the conveying material chute 312 and the front and rear guide chute 72 is also the same, ensuring accurate pushing position. Each time the pushing rod 2 moves horizontally, it can move the bearing that is stuck on the pushing material chute 22 forward by one workstation distance a.

[0024] Therefore, the spacing between the material passage holes 62 opened on the sorting tank 65 is also the distance of one station, and the diameter of the material passage hole 62 must be larger than the size of the bearing to ensure that the bearing pushes out of the sorting tank 65 during sorting and passes through the material passage hole 62 smoothly.

[0025] The push rod 2 and the guide groove 72 are on the same vertical plane, and the push rod 2 can be lifted and suspended directly above the connecting material rack 71 by the lifting cylinder 13; The steering disc 5 is an elliptical disc with a flat top. A steering groove 52 is opened downward from the top of the steering disc 5. The steering groove 52 is a channel that is open at the front, back and top. A steering motor 51 is vertically installed at the bottom of the steering disc 5. The steering disc 5 is mounted on the drive shaft of the steering motor 51 and can rotate horizontally in the front and back directions. The steering disc 5 is also located directly below the push rod 2. The front-back length of the steering disc 5 is greater than its left-right width c. The left and right ends of the steering groove 52 are tightly connected to the guide groove 72, and the gap does not exceed 0.2mm. The distance between the two connecting racks 71 is greater than the lateral width c of the steering disc 5. This ensures that the steering disc 5 is not obstructed by the connecting racks 71 on both sides when rotating, allowing for easy rotation of the steering disc 5.

[0026] The widths s of the turning chute 52, the conveying chute 312, the sorting chute 65 and the guide chute 72 are the same in the left and right directions, and when the conveying chute 312 is in the retracted position, the three of them, the push rod 2 and the push chute 22 are all on the same vertical plane. Furthermore, the width s is greater than the bearing thickness, with a difference of no more than 1 mm.

[0027] A connecting rack 71 is provided on both the front and rear sides of the steering tray 5; Each top material clamp 31 is also provided with a connecting material rack 71 at its front end, and a connecting material rack 71 is also provided between the top material clamp 31 and the turning material plate 5; A set of detection devices is set at each of the front and rear ends of the steering material plate 5. Each set of detection devices includes a top material cylinder 3 and a detection motor 4. The top material cylinder 3 and the detection motor 4 are respectively set on the left and right sides of the push rod 2. The bottom of the top material cylinder 3 is provided with a translation slider 33, which is mounted on the guide rail 34 and can slide in the left and right direction. The guide rail 34 is set horizontally on the frame 7 in the left and right direction. The top material clamp 31 is also vertically fixed on the top of the translation slider 33. The top material clamp 31 slides horizontally in the left and right direction along with the translation slider 33. The top material cylinder 3 extends and retracts horizontally in the left and right direction. Each guide rail 34 is equipped with a push motor 35. The telescopic end of the push motor 35 is connected to the translation slider 33. The push motor 35 is horizontally positioned in the left-right direction, and its telescopic direction is the same as that of the guide rail 34. The push motor 35 is a servo motor, which can accurately push the bearing onto the drive cone 41, and the inner ring of the bearing abuts against the drive cone 41 to form a transmission effect. Because the drive cone 41 is conical, as long as the bearing ring is fitted onto the drive cone 41, a mating effect can be formed. Furthermore, the outer surface of the drive cone 41 needs to be covered with an anti-slip layer, which can be a rubber sleeve, to ensure effective driving of the bearing during high-speed rotation. Because the inner and outer rings of the bearing are very smooth, only a small amount of friction is needed to drive the bearing.

[0028] The top material clamp 31 has a square structure. The top of the top material clamp 31 has a vertically downward-facing material passage 312. The material passage 213 penetrates the top material clamp 31 in the front-back direction. The material passage 312 is a vertically opened groove channel, forming a narrow vertical channel that restricts the direction of travel at the bottom and on the left and right sides. The material passage 312 forms a narrow channel with openings in both the front-back direction and the top inside the top material cylinder 3. The material passage 312 is located directly below the push rod 2. When the top clamp 31 is in the pushing position, the guide groove 72 and the feed groove 312 form a continuous channel; The top material clamp 31 also has push grooves 311 on the left and right sides. The push grooves 311 are U-shaped grooves and extend through the top material clamp 31 in the left and right direction. The push groove 311 is located on the extension path of the push cylinder 3. The extension end of the push cylinder 3 is also provided with multiple push blocks 32. The extension path of each push block 32 is within the hole range of the push groove 311. When the push block 32 is in the inspection station, it passes through the push groove 311. When it is in the pushing station, the push block 32 exits the push groove 311 and retracts outside the push fixture 31.

[0029] The detection motor 4 is horizontally mounted on the frame 7. A drive cone 41 is mounted on the drive shaft of the detection motor 4. The drive cone 41 is a conical structure that is thinner at the far end and thicker at the near end. The thin end of the drive cone 41 is directly opposite the telescopic end of the top material cylinder 3. The axis of the drive cone 41 and the axis of the top material cylinder 3 are on the same horizontal straight line. When the ejector clamp 31 is in the inspection position, multiple ejector blocks 32 abut against the outer ring end face of the bearing sleeved on the drive cone 41, without contacting the drive cone 41 or the inner ring of the bearing. The ejector blocks 32 are driven to extend and retract horizontally by the ejector cylinder 3. There are three ejector blocks 32 arranged in a triangle, each facing the drive cone 41. The locking post 44 clamps the ejector blocks 32 on the left and right sides of the outer ring of the bearing in the push groove 311, and each ejector block 32 faces the outer ring of the bearing in the push groove 311. The width d of the feed groove 312 is greater than the inner ring diameter of the bearing and less than the outer ring diameter of the bearing, so that the feed groove 312 can clamp and limit the assembled bearing to prevent the bearing from falling off to the left or right, and can also allow the top block 32 to enter and push the inner ring of the bearing.

[0030] A noise sensor 42 is installed above the drive cone 41; A locking post 44 is also provided at the proximal end of the drive cone 41. The locking post 44 is a round rod and is stably inserted into the inner ring of the bearing being tested. The locking post 44 and the inner ring of the bearing are in clearance fit, with a clearance of no more than 0.1 mm. A vibration sensor 43 is also provided on the side of the locking post 44. Noise sensor 42 and vibration sensor 43 are both connected to the controller, which can digitize the operating noise and vibration of each bearing to meet different data ranges. In the subsequent sorting process, the sorting cylinder 64 pushes the bearings of different grades into different finished product tanks 61 for differentiation, which is convenient for subsequent use.

[0031] The sorting tray 6 is located at the rear end of the frame 7. A sorting trough 65 is also provided on one side of the sorting tray 6. The sorting trough 65 is a long strip channel with openings at the front, back and top. The sorting trough 65 is closely connected to the rear end of the top material clamp 31. A waste collection box 63 is also provided at the rear end of the sorting trough 65; The top of the sorting tray 6 has multiple long strip-shaped finished product troughs 61 with the top facing downwards. Multiple sorting cylinders 64 are set on the left side of the sorting trough 65, and the extension and retraction direction of each sorting cylinder 64 is directly opposite to a finished product trough 61. The finished product trough 61 is a V-shaped trough, and each finished product trough 61 is horizontally arranged in the left and right direction, and each finished product trough 61 is parallel to each other on the same plane; Multiple material passage holes 62 are opened at the bottom of the side wall of the sorting tank 65. The bottom of the material passage holes 62 is flush with the bottom of the sorting tank 65, and each material passage hole 62 is directly opposite a finished product tank 61. Each material passage hole 62 is connected to the inner cavity of the sorting tank 65 through a finished product tank 61, forming a V-shaped channel for pushing material. A material passage 62, a finished product trough 61, and a sorting cylinder 64 are arranged on the same vertical plane to form a sorting mechanism. The sorting cylinder 64 and the finished product trough 61 are symmetrically arranged on the left and right sides of the sorting trough 65. Multiple sorting mechanisms are set on the sorting tray 6. Each sorting cylinder 64 is also connected to the control of the equipment. Each pneumatic device, motor and detection sensor is connected to the control, which facilitates the detection of the operating data of each bearing and the classification of bearings with different noise levels and different vibration amplitudes.

[0032] The turning trough 52, the conveying trough 312, the sorting trough 65 and the guide trough 72 form a complete channel along the front-to-back direction, and the width s of the channel in the left-to-right direction is clearance fit with the bearing, with the clearance not exceeding 1mm; The push rod 2 slides along the front-to-back direction in the channel formed by the turning trough 52, the passing trough 312, the sorting trough 65 and the guide trough 72.

[0033] It should be noted that: In current bearing testing, a motor drive shaft is typically fixed vertically upwards on a workbench. The bearing is then manually lifted, its inner ring is placed on the drive shaft, a switch is pressed to start the motor, the bearing rotates, and its noise is measured. However, in order to improve efficiency, manual testing often involves randomly selecting one side of the bearing for testing. Even when two sides need to be tested, manual operation frequently results in errors in the end faces, leading to testing both sides of the same side. This not only results in large errors and low testing efficiency, but also requires a large number of personnel, especially considering the large production volume of ultra-quiet bearings.

[0034] Another problem is that when the bearing is pressed against the rotating drive motor for testing, the drive motor needs to run at high speed to test the bearing's operating noise. At this time, the outer ring of the bearing needs to be clamped with a clamp, but many people use their hands directly, which is more convenient. This brings safety hazards and introduces uncertainties into production. Therefore, the motor rotation speed generally needs to be reduced to achieve a safe state, which leads to a reduction in testing standards. This situation needs to be improved.

[0035] This device solves all the aforementioned drawbacks. It not only efficiently inspects each bearing but also performs rotational inspection on both end faces of the bearing, facilitating the detection of uniform force distribution on both sides of the bearing. Furthermore, it eliminates the need for manual operation, allowing the motors to rotate at higher speeds without interference from other operators. The two inspection motors 4 operate synchronously, generating sound simultaneously, and the two drive cones 41 are spaced far apart to prevent sound interference. The noise sensor 42 is located close to the drive cones 41 for optimal detection. The addition of a vibration sensor 43 allows for the detection of both vibration and noise, providing more comprehensive bearing inspection data. It also enables the sorting of inspected bearings, creating a stable inspection and sorting production line.

[0036] In use, the bearings are supported by the feeding rack 73, which enables the production line of this device to be seamlessly connected with the previous process. Only one bearing is allowed to enter the feeding rack 73 at a time, forming a preparatory station. The feeding method can be the feeding of the previous process structure. This device only solves the technical problems of detection, flipping and sorting. Therefore, the feeding rack 73 is just a buffer station.

[0037] The lifting frame 1 is lowered by the lifting cylinder 13. The push rod 2 is lowered along with the lifting cylinder 13, so that the push groove 22 at the last end is pressed down and the bearing on the loading frame 73 is locked. Then the push cylinder 21 retracts, so that the push rod 2 moves forward one station. At this time, the push groove 22 also moves forward one station distance a.

[0038] At this point, the bearing enters the connecting rack 71 and begins the formal inspection and sorting process.

[0039] Then the lifting cylinder 13 rises, the pushing cylinder 21 extends at the high position, and the pushing rod 2 returns to the starting position, that is, the foremost pushing groove 22 is directly above the loading rack 73.

[0040] The push rod 2 moves up and down and back and forth repeatedly to continuously transport the bearing forward.

[0041] When the bearing enters the feed groove 312 of the first ejector clamp 31, the first end face of the bearing is tested for operation. During the upward movement of the push rod 2, the push motor 35 quickly moves to the left, causing the ejector clamp 31 to move towards the drive cone 41. The inner ring of the bearing moves closer and closer to the locking post 44 at the near end along the far end of the drive cone 41 and abuts against it. At this time, the outer ring of the bearing abuts against the locking post 44, while the inner ring of the bearing is locked by the drive cone 41, forming a synchronous rotation locking state. At this time, the drive cone 41 and the inner ring of the bearing are in an interference fit. Because the drive cone 41 is wrapped with elastic rubber, the elastic deformation of the drive cone 41 enables the two to lock and transmit power.

[0042] At the same time, the top cylinder 3 is pushed out, extending the top block 32, which then extends into the top push groove 311, clamping the outer ring of the bearing in the feed groove 312. The other side of the outer ring of the bearing is pressed against the locking post 44, thereby compensating for the gap in the feed groove 312 and preventing the bearing in the feed groove 312 from moving due to high-speed drive.

[0043] The detection motor 4 immediately starts rotating at high speed. At this time, the vibration sensor 43 and the noise sensor 42 start synchronously with the detection motor 4 to detect the operating data of the bearing, thereby achieving the detection of high-speed rotation of a single bearing.

[0044] After the inspection is completed, the pusher motor 35 returns to the pushing station, waiting for the pusher rod 2 to transport the inspected bearing to the next station.

[0045] The push rod 2 continuously conveys the bearings at the front end to the next station, while the subsequent bearings are also continuously conveyed forward synchronously through the push rod 2. Each reciprocating motion of the push rod 2 can advance the bearings at each station by a distance 'a', achieving the effect of synchronous, same-frequency, and same-distance conveying of multiple bearings.

[0046] When the bearing enters the steering groove 52 at the top of the steering disc 5, the steering motor 51 controls the steering disc 5 to rotate horizontally by 180° along the vertical axis to form a steering, thereby turning the bearing inside into a vertical flip. Then, the flipped bearing is inspected again by the detection mechanism on the rear side, so as to achieve the purpose of inspecting both sides of the bearing.

[0047] Each time the push rod 2 is lifted and moves forward, a new bearing is fed into the steering disc 5. Each time a new bearing is fed in, as the push rod 2 is lifted to prepare to feed the next bearing, the steering disc 5 will rotate once, only 180° each time, so that each bearing can be flipped on the steering disc 5 and its position remains stable. Therefore, the width of the steering groove 52 is required to be more precise, so that the steering groove 52 and the thickness of the bearing can form a transition fit, ensuring stability during flipping. Of course, the steering disc 5 rotates relatively smoothly to avoid abrupt starts and stops, which is also for the stability of the bearing rotation.

[0048] After the inspection is completed, the bearing is continuously conveyed backward by the pusher rod 2 and enters the sorting tank 65. Under the push of the pusher rod 2, the bearing moves backward along the sorting tank 65 and stops in the material passage hole 62 each time. According to the set parameters, bearings with different noise levels enter different finished product tanks 61 and are pushed by the sorting cylinder 64 on the left side of the production line. Finally, the bearings that have not been sorted will be pushed into the waste frame 63 by the rear end face of the pusher rod 2 along the sorting tank 65, completing the entire sorting process.

[0049] The pushing station and the inspection station of this device specifically refer to the two left and right translation stations at the inspection mechanism. The pushing station is the position where the top material clamp 31 is aligned with the connecting material racks 71 on the front and rear sides, and the material passage 312 and the guide groove 72 in the front and rear directions form a continuous channel, which facilitates the forward and backward movement of the bearing. The inspection station refers to the station where the top clamp 31 pushes the material to the drive cone 41, so that the inner ring of the bearing and the drive cone 41 form a transmission engagement.

[0050] The front, back, left, and right directions referred to in this device refer to the production line direction in which the bearing moves forward. The front direction refers to the direction in which the bearing travels, and the rear direction refers to the initial direction in which the bearing enters. The left and right directions refer to the left and right sides in the front-back direction. The indicated orientation or positional relationship is based on the orientation or positional relationship shown in the accompanying drawings and is only for the convenience of describing this utility model and simplifying the description. It is not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation of this utility model.

[0051] While specific embodiments of the present invention have been described above, those skilled in the art should understand that the specific embodiments described are merely illustrative and not intended to limit the scope of the present invention. Equivalent modifications and variations made by those skilled in the art in accordance with the spirit of the present invention should be covered within the scope of protection of the claims of the present invention.

Claims

1. An automatic detection and sorting device for ultra-quiet bearings, characterized in that, include: Lifting frame (1), push rod (2), top cylinder (3), detection motor (4), steering tray (5), sorting tray (6), sorting cylinder (64) and frame (7); The frame (7) is a stable support platform. Multiple connecting racks (71) are provided on the top of the frame (7). The connecting racks (71) are block-shaped structures. Each connecting rack (71) has a guide groove (72) vertically opened downwards on the top. The guide groove (72) is a narrow channel with openings at the front, back and top. The lifting frame (1) is a support frame. A lifting cylinder (13) is vertically installed at each of the front and rear ends of the lifting frame (1). The lifting frame (1) is installed on the frame (7) in a way that can be raised and lowered by the lifting cylinder (13). A guide block (12) is also fixedly installed on each lifting frame (1). The push rod (2) is a long rod arranged in the front-back direction. A guide groove (11) is provided at each of the front and rear ends of the push rod (2). The guide groove (11) slides horizontally on the guide block (12) in the front-back direction. The push rod (2) is horizontally suspended in the guide block (12) through the guide groove (11). The bottom of the push rod (2) is provided with multiple push grooves (22), each of the push grooves (22) is a U-shaped groove with an open bottom, and the spacing between each push groove (22) is the same; The push rod (2) and the guide groove (72) are on the same vertical plane, and the push rod (2) can be lifted and suspended directly above the connecting material rack (71) by the lifting cylinder (13); The steering disc (5) is an elliptical disc with a flat top. A steering groove (52) is opened downward on the top of the steering disc (5). The steering groove (52) is a channel that is open at the front, back and top. A steering motor (51) is vertically installed at the bottom of the steering disc (5). The steering disc (5) is mounted on the drive shaft of the steering motor (51) and can rotate horizontally. The steering disc (5) is also located directly below the push rod (2). A connecting rack (71) is provided on both the front and rear sides of the steering tray (5). Each of the front and rear ends of the steering disc (5) is equipped with a detection device. Each detection device includes a top material cylinder (3) and a detection motor (4). The top material cylinder (3) and the detection motor (4) are respectively located on the left and right sides of the push rod (2). The bottom of the top material cylinder (3) is provided with a translation slider (33), which is slidably mounted on the guide rail (34) in the left and right direction. The guide rail (34) is horizontally mounted on the frame (7) in the left and right direction. The top of the translation slider (33) is also vertically fixed with a top material clamp (31), which slides horizontally in the left and right direction along with the translation slider (33). The top material cylinder (3) extends and retracts horizontally in the left and right direction. Each of the top material clamps (31) is also provided with a connecting material rack (71) at its front end, and a connecting material rack (71) is also provided between the top material clamp (31) and the turning material plate (5). The top material clamp (31) has a square structure. The top of the top material clamp (31) has a vertically downward-facing material passage (312). The material passage (312) forms a narrow channel with openings in the front and back directions and the top inside the top material cylinder (3). The material passage (312) is located directly below the push rod (2). When the top material clamp (31) is in the pushing position, the guide groove (72) and the material passage groove (312) form a continuous channel; The top material clamp (31) is provided with top push grooves (311) on the left and right sides. The top push grooves (311) are U-shaped grooves and the top push grooves (311) penetrate the top material clamp (31) in the left and right direction. The push groove (311) is located on the extension path of the push cylinder (3). The extension end of the push cylinder (3) is also provided with multiple push blocks (32). The extension path of each push block (32) is within the hole range of the push groove (311). The detection motor (4) is horizontally mounted on the frame (7). A drive cone (41) is mounted on the drive shaft of the detection motor (4). The drive cone (41) is a conical structure that is thinner at the far end and thicker at the near end. The thin end of the drive cone (41) is directly opposite the telescopic end of the top material cylinder (3). The axis of the drive cone (41) and the axis of the top material cylinder (3) are on the same horizontal straight line. When the top clamp (31) is in the inspection position, the multiple top blocks (32) abut against the bearing outer ring end face sleeved on the drive cone (41). A noise sensor (42) is provided above the drive cone (41); The sorting tray (6) is located at the rear end of the frame (7). A sorting groove (65) is also provided on one side of the sorting tray (6). The sorting groove (65) is a long strip channel with openings at the front, back and top. The sorting groove (65) is closely connected to the rear end of the top material clamp (31). A waste box (63) is also provided at the rear end of the sorting trough (65); The top of the sorting tray (6) has multiple long strip-shaped finished product slots (61) with the top facing downwards. Multiple sorting cylinders (64) are arranged on the left side of the sorting slot (65), and the extension and retraction direction of each sorting cylinder (64) is directly opposite to a finished product slot (61). The turning trough (52), the conveying trough (312), the sorting trough (65) and the guide trough (72) form a complete channel along the front-back direction; The push rod (2) is slidably disposed in the channel formed by the turning trough (52), the passing trough (312), the sorting trough (65) and the guide trough (72) in the front-back direction.

2. The automatic detection and sorting device for ultra-quiet bearings according to claim 1, characterized in that: A pusher block (24) is also provided at the top of the pusher rod (2), and an installation block (23) is fixed on the lifting frame (1) at the rear end. A pusher cylinder (21) is fixedly mounted on the installation block (23). The telescopic end of the pusher cylinder (21) is connected to the pusher block (24), and the pusher cylinder (21) extends and retracts horizontally in the front-back direction.

3. The automatic detection and sorting device for ultra-quiet bearings according to claim 1, characterized in that: The drive cone (41) is also provided with a locking post (44) at its proximal end. The locking post (44) is a round rod. The locking post (44) is stably inserted into the inner ring of the bearing being tested. The locking post (44) and the inner ring of the bearing are in clearance fit, with a clearance not exceeding 0.1 mm. A vibration sensor (43) is also provided on the side of the positioning post (44). The noise sensor (42) and vibration sensor (43) are both connected to the controller.

4. The automatic detection and sorting device for ultra-quiet bearings according to claim 3, characterized in that: There are three top blocks (32), which are arranged in a triangle. Each top block (32) is directly opposite the drive cone (41), and the locking post (44) and the top block (32) are clamped on the left and right sides of the outer ring of the bearing in the push groove (311). The width d of the feed groove (312) is greater than the inner ring diameter of the bearing and less than the outer ring diameter of the bearing.

5. The automatic detection and sorting device for ultra-quiet bearings according to claim 1, characterized in that: The finished product groove (61) is a V-shaped groove, and each finished product groove (61) is horizontally arranged in the left and right direction, and each finished product groove (61) is parallel to each other on the same plane; The bottom of the side wall of the sorting tank (65) is provided with a plurality of material passage holes (62), the bottom of the material passage holes (62) is flush with the bottom of the sorting tank (65), and each material passage hole (62) is directly opposite a finished product tank (61), and each material passage hole (62) is connected to the inner cavity of the sorting tank (65) through a finished product tank (61); A sorting mechanism is formed by the axes of a material passage (62), a finished product trough (61), and a sorting cylinder (64) on the same vertical plane. The sorting cylinder (64) and the finished product trough (61) are symmetrically arranged on the left and right sides of the sorting trough (65). Multiple sorting mechanisms are set on the sorting tray (6).

6. The automatic detection and sorting device for ultra-quiet bearings according to claim 1, characterized in that: The turning trough (52), the conveying trough (312), the sorting trough (65) and the guide trough (72) have the same width s in the left and right directions and are on the same vertical plane; Furthermore, the width s is greater than the bearing thickness, with a difference of no more than 1 mm.

7. The automatic detection and sorting device for ultra-quiet bearings according to claim 1, characterized in that: The connecting rack (71) is fixed to the top of the frame (7); The connecting rack (71) is a PVC block structure.

8. The automatic detection and sorting device for ultra-quiet bearings according to claim 1, characterized in that: It also includes a push motor (35), and each of the guide rails (34) is provided with a push motor (35). The telescopic end of the push motor (35) is connected to the translation slider (33). The push motor (35) is set horizontally in the left and right direction. The telescopic direction of the push motor (35) is the same as the direction of the guide rail (34).

9. The automatic detection and sorting device for ultra-quiet bearings according to claim 1, characterized in that: The front-to-back length of the steering disc (5) is greater than its left-to-right width c. The left and right ends of the steering groove (52) are tightly connected to the guide groove (72) it connects to, and the gap does not exceed 0.2mm. The distance between the two connecting racks (71) is greater than the width c of the turning plate (5) in the left and right direction.

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