Automatic production connecting line of centerless bearing outer ring grinding machine

Abstract

The invention discloses an automatic production connecting line of a centerless bearing outer ring grinding machine, which comprises a backward-turning elevator used for lifting a bearing outer ring from a low position to a high position; the frame grabbing elevator is mounted at the inlet end of the backward overturning elevator and is used for lifting the material box filled with the bearing outer ring and pouring the bearing outer ring into the inlet of the backward overturning elevator; a buffer conveyor; a flat rubbing material arranging machine; a surface recognizing mechanism; a first double-roller feeder; a rough grinding mechanism; the invention discloses a double-rolling-rod material receiving machine. The second double-rolling-rod feeding machine is used for being connected with the refiner; through cooperation of a backward-turning elevator, a grabbing frame elevator, a temporary storage conveyor, a flat rubbing material arranging machine, a face recognizing mechanism, a first double-rolling-rod feeding machine, a coarse grinding mechanism, a double-rolling-rod receiving machine and a second double-rolling-rod feeding machine used for being connected with a fine grinding machine, automatic face recognizing and feeding of the centerless grinding machine and automatic line connection between the grinding machines are achieved. The grinding quality of the centerless grinding machine is improved, manpower is saved, and the overall quality of products is improved.

Description

Technical Field

[0001] This invention belongs to the technical field of bearing production equipment, specifically relating to an automated production line for grinding the outer ring of a centerless bearing. Background Technology

[0002] In bearing processing, in order to ensure the dimensional and shape accuracy of the bearing, the outer ring of the bearing needs to be ground multiple times. Grinding involves rough grinding and fine grinding processes. At present, the outer ring of the bearing is mainly ground by centerless external cylindrical grinding, combined with the through-cutting method to achieve efficient and high-precision processing. The dimensional and shape accuracy is ensured through a multi-stage process of rough grinding, semi-fine grinding, fine grinding and ultra-fine machining. However, in centerless cylindrical grinding, the grinding loading method is semi-automatic, which is inefficient. At the same time, seamless connection between different grinding machines cannot be achieved. After the rough grinding is completed, the material needs to be unloaded and then transported to the precision grinding machine for processing. This is not conducive to the automated production of bearings and reduces the grinding efficiency of bearing outer rings. Therefore, we need to propose an automated production line for centerless bearing outer ring grinding machines to solve the above problems, so as to enable integrated automatic production and improve the grinding efficiency of bearing outer rings. Summary of the Invention

[0003] The purpose of this invention is to provide an automated production line for grinding the outer ring of a centerless bearing, which can perform integrated automated production and improve the grinding efficiency of the bearing outer ring, thereby solving the problems mentioned in the background art.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: An automated production line for grinding the outer ring of a centerless bearing includes: A rear-tilt elevator is used to lift a bearing outer ring from a low position to a high position. The grab-frame elevator is installed at the inlet end of the rear tilting elevator to lift the hopper containing the bearing outer ring and pour the bearing outer ring into the inlet of the rear tilting elevator. A buffer conveyor is installed at the outlet of the tilting elevator to buffer and transport the outer ring of the bearing that has been tilted out by the tilting elevator. The flat rubbing and sorting machine is installed at the outlet of the buffer conveyor to flat rub and sort the outer rings of the buffered bearings, so that the outer rings of the bearings are conveyed one by one lying flat. The face recognition mechanism, installed at the outlet end of the flat rolling and sorting machine, is used to detect and adjust the face of the outer ring of a single conveyed bearing, so that the outer rings of the conveyed bearings are on the same face. The output end of the first double roller feeder is connected to the inlet end of the first double roller feeder through a buffer channel, which is used to make the outer ring of the bearing stand up to maintain coaxial transmission. The coarse grinding mechanism is installed at the outlet end of the first double roller feeder and is used for coarse grinding of the outer ring of the bearing. The double roller receiving machine is installed at the outlet end of the rough grinding mechanism and is used to directionally transfer the outer ring of the bearing after rough grinding. A second twin-roller feeder is used to connect to the fine grinding mill, and a tunnel conveyor is connected between the second twin-roller feeder and the twin-roller receiving machine. The tunnel conveyor can keep the axis of the outer ring of the shaft aligned with the tunnel axis, preventing it from tipping over.

[0005] Preferably, the first double roller feeder includes a sixth frame, on which a first height adjustment mechanism is installed. The first height adjustment mechanism is equipped with a first longitudinal adjustment mechanism, and a base is installed on the first longitudinal adjustment mechanism. A second spacing adjustment mechanism is installed on the base, and two threaded rollers with adjustable tilt angles are installed on the second spacing adjustment mechanism. The two threaded rollers are not on the same horizontal plane and are driven by a roller drive mechanism. A tunnel pipe is provided on the threaded roller located at the discharge end of the buffer channel. The tunnel pipe is connected to the base through a connecting frame, and the tunnel pipe rotates passively following the rotation of the threaded roller.

[0006] Preferably, a sixth baffle is fixed on both sides of the base. The sixth baffle and two threaded rollers form a third transmission channel. The outer ring of the bearing that slides down through the buffer channel enters the tunnel tube at an angle or lie flat. Then, through the high-speed driven movement of the tunnel tube, the centerless steel ring that has fallen into the inside stands up.

[0007] Preferably, the discharge end of the third transmission channel is provided with a first pressing mechanism and a pressure plate mechanism in sequence, and the pressure plate mechanism is located at one end of the coarse grinding mechanism.

[0008] Preferably, the first pressing mechanism includes a height adjustment component, an adjustment end of which is equipped with a longitudinal plate, a support plate is installed at one end of the longitudinal plate, a wheel seat is installed below the support plate, a pressing wheel is installed inside the wheel seat, guide rods are fixed at both ends of the wheel seat, the upper end of the guide rod passes through the support plate and is slidably connected to the support plate, and a spring is sleeved on the guide rod located below the support plate.

[0009] Preferably, the first longitudinal adjustment mechanism includes a longitudinal seat and a longitudinal lead screw rotatably installed in the longitudinal seat. A sliding block is threaded onto the longitudinal lead screw, and the sliding block is slidably connected to the longitudinal seat. The base is installed on the sliding block, and a second adjustment handwheel is installed at one end of the longitudinal lead screw.

[0010] Preferably, the second spacing adjustment mechanism includes a bidirectional lead screw rotatably installed in the base, with supports for mounting threaded rollers threaded to both ends of the bidirectional lead screw. The two ends of the supports are connected to the threaded rollers through an angle adjustment mechanism, and the supports are slidably connected to the base. A third adjustment handwheel is fixed to one end of the bidirectional lead screw.

[0011] Preferably, the angle adjustment mechanism includes a mounting block rotatably connected to the end of the threaded roller, the lower end of the mounting block having an elongated hole, and the mounting block being fixed to the end of the support by a locking bolt passing through the elongated hole.

[0012] Preferably, the roller drive mechanism includes a first driven wheel fixed to one end of the threaded roller and a second driven wheel located at one end of the base. The second driven wheel is located between the two first driven wheels. A motor base is fixed to the lower end of the base. A rotary motor is mounted on the motor base. The output shaft of the rotary motor is keyed to a drive wheel. The drive wheel, the first driven wheel, the second driven wheel, and the first driven wheel are sequentially connected by a transmission belt.

[0013] Preferably, the double roller receiving machine includes a third frame, on which a second height adjustment mechanism is installed, a second longitudinal adjustment mechanism is installed, and a fifth spacing adjustment mechanism is installed on the second longitudinal adjustment mechanism. Two rollers with adjustable tilt angles are installed on the fifth spacing adjustment mechanism, and the two rollers are not on the same horizontal plane. The two rollers are driven by a second drive mechanism. Seventh baffles are provided on both sides of the third frame, and the two rollers are located between the two seventh baffles. The seventh baffles and the rollers form a fourth transmission channel. A second clamping mechanism for pressing the outer ring of the bearing is installed on one of the seventh baffles.

[0014] Preferably, the end of the rolling roller furthest from the coarse grinding roller is provided with an external thread section, and the tilt angle adjustment method of the rolling roller is the same as that of the threaded roller.

[0015] Preferably, the face recognition mechanism includes a second frame, a second conveyor mounted on the upper end of the second frame, and a shooting component located above the second conveyor. One end of the second conveyor is connected to the first channel, and the other end of the second conveyor is provided with a paddle assembly for flipping the outer ring of the bearing. A guide channel for vertically conveying the outer ring of the bearing is provided below the other end of the second conveyor, and a second transmission channel with adjustable spacing is provided on the second conveyor.

[0016] Preferably, the second transmission channel includes fixed baffles located on both sides of the second conveyor belt and a fourth baffle located between the two fixed baffles. A first spacing adjustment mechanism is provided between the two fixed baffles, and the fourth baffle is installed on the first spacing adjustment mechanism. The paddle assembly is located at the output end of the second transmission channel.

[0017] Preferably, the tunnel conveyor includes a fourth support, on which a horizontal adjustment mechanism is installed. An installation mechanism is installed on the sliding platform of the horizontal adjustment mechanism. An inclined tunnel mounting frame is installed on the installation mechanism. A conveying pipe is rotatably installed on the tunnel mounting frame. A servo motor is installed on the upper surface of the tunnel mounting frame. The conveying pipe and the output shaft of the servo motor are connected by a second transmission mechanism.

[0018] The automated production line for grinding the outer ring of a centerless bearing proposed in this invention has the following advantages compared with the prior art: 1. This invention uses a frame lifting machine to pour the bearing outer ring into a rear-turning lifting machine. The rear-turning lifting machine lifts the bearing outer ring into a buffer conveyor, and then the buffer conveyor sends it to a flat grinding machine. After the grinding machine finishes grinding, the bearing outer ring is laid flat and discharged to a face recognition mechanism. After the face recognition mechanism finishes face recognition, the bearing outer ring is discharged in an orderly manner into a buffer channel. The bearing outer ring is then transported through the buffer channel and a tunnel pipe to a first double roller feeder. The first double roller feeder then transports it to a rough grinding mechanism for external cylindrical grinding. After external cylindrical grinding, the bearing outer ring is discharged and received by a double roller receiving machine and transported to a tunnel conveyor. The tunnel conveyor then feeds the bearing outer ring onto a second double roller feeder, which then sends it into a fine grinding machine for external cylindrical grinding. This invention realizes automatic face recognition and feeding of the centerless grinder and automated connection between grinders, improving the grinding quality of the centerless grinder, saving manpower, and promoting the overall quality of the product. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 This is a schematic diagram of the frame lifting machine structure of the present invention; Figure 3 This is a schematic diagram of the rear-tilting elevator structure of the present invention; Figure 4 This is a side view of the rear-tilting elevator structure of the present invention; Figure 5 This is a schematic diagram of the internal structure of the flat material handling machine of the present invention; Figure 6 This is a top view of the flat material handling machine of the present invention; Figure 7 This is a schematic diagram of the recognition mechanism of the present invention; Figure 8This is a schematic diagram of the buffer channel and the first double roller feeder structure of the present invention; Figure 9 This is a side view of the first double roller feeder of the present invention. Figure 10 This is a schematic diagram of the structure of the first double roller feeder of the present invention; Figure 11 This is a schematic diagram of the roller drive mechanism and the first clamping mechanism of the present invention; Figure 12 This is a schematic diagram of the coarse grinding mechanism of the present invention; Figure 13 This is a schematic diagram of the structure of the double roller receiving machine of the present invention; Figure 14 This is a schematic diagram of the tunnel conveyor structure of the present invention; Figure 15 This is a side view of the tunnel conveyor structure of the present invention.

[0020] In the diagram: 1. Frame grabber elevator; 101. Elevator frame; 102. Electric hoist; 103. Loading frame; 104. Lifting guide rail; 2. Reverse tilting elevator; 21. Conveying bin; 22. First frame; 23. Lifting drive mechanism; 24. Receiving hopper; 3. Buffer conveyor; 31. Baffle plate; 32. First conveyor; 4. Flat rubbing and sorting machine; 41. Cover plate; 42. Machine casing; 43. Flat rubbing mechanism; 44. First baffle plate; 45. Conveyor belt; 4 6. Limiting plate; 47. Third height adjustment mechanism; 48. Second baffle; 49. First transmission channel; 410. Height limiting plate; 411. Third baffle; 5. Face recognition mechanism; 51. Second conveyor; 52. Fourth baffle; 53. First spacing adjustment mechanism; 54. Shooting assembly; 55. Paddle assembly; 56. Material guide channel; 57. Second frame; 6. Buffer channel; 61. Material guide plate; 62. Position adjustment mechanism; 63. Fifth baffle; 7. First double roller feeder; 71. Sixth frame; 72. Sixth baffle; 73. First longitudinal adjustment mechanism; 74. Threaded roller; 75. First clamping mechanism; 751. Clamping wheel; 752. Guide rod; 753. Support plate; 754. Longitudinal plate; 755. First adjusting handwheel; 756. Moving block; 757. Limiting rod; 758. Lifting screw; 76. Pressure plate mechanism; 761. Scraper; 762. Lifting adjustment mechanism; 77. Roller drive mechanism; 771. Rotary motor; 772. Transmission belt; 773. First driven wheel; 774. Driving wheel; 775. Mounting block; 776. Connecting block; 78. First height adjustment mechanism; 79. Second spacing adjustment mechanism; 710. Tunnel pipe; 8. Coarse grinding mechanism; 81. Fourth frame; 82. Coarse grinding roller; 83. Roller gap adjustment mechanism; 84. Third support; 9. Double roller receiving machine; 91. Third frame; 92. Second drive mechanism; 93. Third gap adjustment mechanism; 94. Rolling roller; 95. Second pressing mechanism; 96. Second longitudinal adjustment mechanism; 10. Tunnel conveyor; 1001. Fourth support; 1002. Horizontal adjustment mechanism; 1003. Sliding block; 1004. Conveying pipe; 1005. Installation mechanism; 1006. Tunnel mounting frame; 1007. Second transmission mechanism; 1008. Servo motor; 11. Second double roller feeder; 12. Fine grinding mill; 13. Control box. Detailed Implementation

[0021] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The specific embodiments described herein are merely used to explain the present invention and are not intended to limit the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0022] This invention provides, for example Figure 1-4 The automated production line for grinding the outer ring of a centerless bearing shown includes a rear-turning elevator 2, a frame-grabbing elevator 1, a buffer conveyor 3, a flat rubbing and sorting machine 4, a surface recognition mechanism 5, a first double roller feeder 7, a rough grinding mechanism 8, a double roller receiving machine 9, and a second double roller feeder 11 for connection with a fine grinding machine 12. The rear-turning elevator 2 is used to lift the bearing outer ring from a low position to a high position. The rear-tilting elevator 2 includes an inclined conveying bin 21. A receiving hopper 24 for receiving the outer ring of a bearing inside a receiving box is located at the lower end of the conveying bin 21. A lifting drive mechanism 23 for lifting materials into a buffer conveyor 3 is installed on the upper side wall of the conveying bin 21. The buffer conveyor 3 is located below the discharge port of the conveying bin 21, and a first frame 22 for supporting the buffer conveyor 3 is installed below it. A control box 13 is installed on the first frame 22, and a controller is installed inside the control box 13 to control the operation of the entire equipment. When the buffer conveyor 3 is short of material, the workpiece is automatically lifted into the buffer conveyor 3. The receiving hopper 24 is inclined or funnel-shaped to ensure that the material slides naturally into the conveying bin 21 under the action of gravity. The conveying bin 21 is connected to the lifting drive mechanism 23 through a hinge or rotating shaft. When it is flipped, it tilts backward with the hinge as the fulcrum. When the tilt angle exceeds the material's angle of repose, the material automatically slides out of the conveying bin 21 under the action of gravity and falls into the buffer conveyor 3 below. After unloading, the lifting drive mechanism 23 rotates in the opposite direction, driving the conveying bin 21 to descend along the track to the initial receiving position for cyclic material conveying. The grab-frame elevator 1 is installed at the inlet end of the rear tilting elevator 2 to lift the hopper containing the bearing outer ring and pour the bearing outer ring into the inlet of the rear tilting elevator 2; The grabbing frame elevator 1 includes an elevator frame 101, a lifting guide rod is installed inside the elevator frame 101, an electric hoist 102 is installed at the upper end of the lifting guide rail 104, an mounting seat is slidably installed on the lifting guide rail 104, and a material frame 103 for lifting the material box is installed on the mounting seat. The electric hoist 102 drives the mounting seat to rise or fall. The electric hoist 102 is used as the power source. The electric hoist 102 can be operated automatically or manually to lift the material box of the bearing outer ring to a certain height and then to the inlet of the rear tilting elevator 2. The buffer conveyor 3 is installed at the outlet of the rear tilting elevator 2 to buffer and transport the bearing outer ring that is tilted out by the rear tilting elevator 2; The buffer conveyor 3 includes a first conveyor 32. A baffle plate 31 communicating with the flat rubbing and sorting machine 4 is installed on the outer periphery of the first conveyor 32. The baffle plate 31 is arranged in an inverted U-shape. A planar conveyor belt is provided on the first conveyor 32. The lower end of the baffle plate 31 is connected to the first frame 22. The outer ring of the bearing is placed on the first conveyor 32. The bearing is transferred to the flat rubbing and sorting machine 4 by the conveyor belt. The flat rubbing and sorting machine 4 is installed at the outlet of the buffer conveyor 3 to flat rub and sort the buffered bearing outer rings, so that the bearing outer rings are conveyed one by one lying flat. The flat rolling material handling machine 4 includes a housing 42 and a cover plate 41 installed on the upper end of the housing 42. Multiple chain plate type conveyor belts 45 are arranged side by side inside the housing 42. The conveying direction between the multiple conveyor belts 45 is S-shaped. A height limiting mechanism is installed inside the housing 42 to limit the single layer height of the outer ring of the bearing from passing through. The height limiting mechanism divides the inside of the housing 42 into a flat rolling area and a conveying area. Multiple flat rolling mechanisms 43 are installed at the top of the housing 42 located in the flat rolling area. The cover plate 41 is located above the conveying area. A first conveying channel 49 with adjustable conveying spacing is provided in the conveying area. The height limiting mechanism includes a limiting plate 46 and a height limiting plate 410 fixed to one side of the limiting plate 46. The limiting plate 46 is connected to the side wall of the housing 42 through a third height adjustment mechanism 47. A first baffle 44 is provided between the other side of the limiting plate 46 and the side wall of the housing 42, and the first baffle 44 is located at the end of the conveyor belt 45. The height limiting plate 410 is located at one end of the first transmission channel 49, and a plurality of round holes are provided on the height limiting plate 410. The other end of the first transmission channel 49 is connected to the face recognition mechanism 5. The third height adjustment mechanism 47 includes a first lead screw rotatably connected inside the housing 42. A threaded sleeve is threadedly connected to the first lead screw. Both ends of the limiting plate 46 are provided with height adjustment mechanisms. Both ends of the limiting plate 46 are respectively connected to the threaded sleeve. The upper end of the first lead screw passes through the housing 42 and is connected to a handle. By rotating the first lead screw with the hand, the threaded engagement between the threaded sleeve and the first lead screw drives the limiting plate 46 to move up or down on the first lead screw, thereby adjusting the distance between the limiting plate 46 and the conveyor belt 45 to flatten the disordered bearing outer rings so that the single row of bearing outer rings passes under the limiting plate 46.

[0023] The flat rubbing mechanism 43 includes a first bracket installed at the top inside the housing 42. A motor is installed on the first bracket. A flat rubbing fan is installed on the output shaft of the motor through a coupling. The motor drives the flat rubbing fan to rotate, and the rotating flat rubbing fan flattens the disordered outer ring of the bearing. The first transmission channel 49 includes a second baffle 48, a third baffle 411, and a fixing plate arranged in parallel. The fixing plate is fixed inside the housing 42. A third gap adjustment mechanism 93 is installed between the second baffle 48 and the fixing plate. The upper end of the third baffle 411 is connected to a fourth gap adjustment mechanism, which adjusts the gap between the third baffle 411 and the second baffle 48 to accommodate the transmission of bearing outer rings of different diameters. One end of the third baffle 411 is connected to one end of a height limiting plate 410, and the other end of the third baffle 411 has a folded edge that bends towards the second baffle 48 to accommodate the bearing. The outer ring transmission direction is changed; the fourth spacing adjustment mechanism includes an adjusting screw, a screw seat and a guide rod rotatably installed at both ends of the adjusting screw. The screw seat is installed on the second baffle 48 and the fixed plate. The guide rod is fixed between the second baffle 48 and the fixed plate. The third baffle 411 is slidably connected to the guide rod. A sliding seat is threadedly connected to the middle of the adjusting screw. The third baffle 411 is installed on the sliding seat. An adjusting block is installed at one end of the adjusting screw. The adjusting block drives the adjusting screw to rotate. By using the sliding restriction of the guide rod, the sliding seat moves horizontally on the adjusting screw, thereby adjusting the distance between the third baffle 411 and the second baffle 48.

[0024] The face recognition mechanism 5 is installed at the outlet end of the flat rolling and sorting machine 4. It is used to detect and adjust the face of the outer ring of the single conveyed bearing so that the outer rings of the conveyed bearings are on the same face. The face recognition mechanism 5 includes a second frame 57, a second conveyor 51 mounted on the upper end of the second frame 57, and a camera assembly 54 located above the second conveyor 51. The camera assembly 54 uses a camera for shooting. One end of the second conveyor 51 is connected to the first channel, and the other end of the second conveyor 51 is provided with a paddle assembly 55 for flipping the outer ring of the bearing. Below the other end of the second conveyor 51, a guide channel 56 for vertically conveying the outer ring of the bearing is provided. The second conveyor 51 is provided with a second transmission channel with adjustable spacing. The outer rings of the bearing lie flat one by one and are sent to the camera assembly 54 through the second conveyor 51. The camera identifies the front and back of the flat outer ring of the bearing. After identification, the signal is transmitted to the unloading mechanism. It can be set to unload the front side on the left and the back side on the right, or it can be set in reverse according to customer needs. The guide channel 56 is trough-shaped, so that all bearing steel rings are placed in the same direction. The second transmission channel includes fixed baffles on both sides of the second conveyor belt and a fourth baffle 52 located between the two fixed baffles. A first spacing adjustment mechanism 53 is provided between the two fixed baffles. The fourth baffle 52 is mounted on the first spacing adjustment mechanism 53. A paddle assembly 55 is located at the output end of the second transmission channel. The first spacing adjustment mechanism 53 drives the fourth baffle 52 to move, thereby adjusting the position of the fourth baffle 52 and thus adjusting the spacing of the second transmission channel to facilitate adjustment according to bearings of different diameters. The structure of the first pitch adjustment mechanism 53 is the same as that of the third pitch adjustment mechanism, and will not be described again here; The paddle assembly 55 includes a paddle, a rotating shaft, a drive device (such as a motor), and a control device. The paddle is made of a material with a certain strength and rigidity, such as stainless steel or engineering plastic, and is designed to be flat. Its front end can be designed into a suitable arc or bevel according to the size of the bearing outer ring so as to better contact the bearing outer ring and apply force. The length of the paddle should be able to cover the width of the second conveyor 51 to ensure that all passing bearing outer rings can be operated. The rotating shaft serves as the support and rotation center of the paddle, and is installed on a fixed bracket on one side of the second conveyor 51. The rotating shaft is fixedly connected to the paddle and can drive the paddle to rotate around the shaft. Drive devices, such as stepper motors or servo motors, are connected to the rotating shaft via couplings. The drive devices can precisely control the rotation angle and speed of the rotating shaft according to the instructions issued by the control device. The control device is used to receive the bearing outer ring front and back identification signal transmitted from the shooting component 54, and send corresponding control commands to the drive device according to the preset program to control the action of the paddle. During the recognition process, the outer rings of the bearings lie flat on the second conveyor 51 one by one and are transported to the underside of the imaging component 54 through the second transmission channel of the second conveyor 51. The camera in the imaging component 54 takes pictures of the outer rings of the bearings, and the front and back of the outer rings of the bearings are determined by the image recognition algorithm. The recognition result is then transmitted to the control device in the form of an electrical signal. After receiving the signal transmitted from the imaging component 54, the control device makes a judgment according to the preset program. If the recognition result is frontal, the control device sends a command to the drive device, causing the drive device to rotate the rotating shaft and the lever to the left by a certain angle (e.g., 90°); if the recognition result is reversed, the control device sends a command to the drive device, causing the lever to rotate to the right by the same angle. When the outer ring of the bearing is conveyed to the position of the paddle assembly 55, if the control device judges it to be facing forward and the paddle has been rotated to the left, the front end of the paddle will contact one side of the outer ring of the bearing and apply a force to the left, causing the outer ring of the bearing to gradually shift to the left during the conveying process. When the outer ring of the bearing reaches the end of the second conveyor 51, it will fall from the left side of the second conveyor 51 due to the pushing force of the paddle on the left side and enter the material dropping area on the left side. Similarly, when the control device determines that it is the reverse side, the lever rotates to the right and applies a force to the right after the front end of the lever contacts the outer ring of the bearing. This causes the outer ring of the bearing to gradually shift to the right during the conveying process and eventually fall from the right side of the second conveyor 51 into the right-side material dropping area. After being sorted by the paddle assembly 55, the outer ring of the bearing will fall into the guide channel 56 below, regardless of whether the front or back is facing up. The guide channel 56 is designed as a groove, and its width and depth are designed according to the size of the outer ring of the bearing, so that after the outer ring of the bearing falls into the guide channel 56, it can only slide vertically in the channel. The output end of the recognition mechanism 5 of the first double roller feeder 7 is connected to the inlet end of the first double roller feeder 7 through the buffer channel 6 to make the outer ring of the bearing stand up and maintain coaxial transmission. The buffer channel 6 mainly consists of a guide plate 61, a position adjustment mechanism 62, and a fifth baffle 63. The guide plate 61 and the fifth baffle 63 are parallel and inclined. The fixed end of the position adjustment mechanism 62 is installed on the guide plate 61, and the adjusting end of the position adjustment mechanism 62 is connected to the fifth baffle 63 to adjust the position of the fifth baffle 63, so that the buffer channel 6 can be used to accommodate bearing outer rings of different thicknesses. The first double roller feeder 7 includes a sixth frame 71, on which a first height adjustment mechanism 78 is mounted. A first longitudinal adjustment mechanism 73 is mounted on the first height adjustment mechanism 78, and a base is mounted on the first longitudinal adjustment mechanism 73. A second spacing adjustment mechanism 79 is mounted on the base, and two threaded rollers 74 with adjustable tilt angles are mounted on the second spacing adjustment mechanism 79. The two threaded rollers 74 are not on the same horizontal plane and are driven by a roller drive mechanism 77. A tunnel pipe 710 is provided on the threaded roller 74 located at the discharge end of the buffer channel 6. The tunnel pipe 710 is connected to the base via a connecting frame and rotates passively following the rotation of the threaded roller 74. An anti-flying pressure roller is mounted on the connecting frame. The anti-flying pressure roller ensures that the tunnel tube 710 is not ejected when the threaded roller 74 moves at high speed. The base is fixed with a sixth baffle 72 on both sides. The sixth baffle 72 and the two threaded rollers 74 form a third transmission channel. The outer ring of the bearing that slides down through the buffer channel 6 enters the tunnel tube 710 at an angle or lying flat. Then, through the high-speed driven movement of the tunnel tube 710, the centerless steel ring that has fallen into the interior stands up. Through continuous production, the tunnel tubes 710 that continue to fall further transmit the upright centerless bearing to the threaded roller 74. The threaded roller 74 is set with a certain angle, and both threaded rollers 74 are set with a helical angle towards the grinding machine, so that the upright bearing has a certain thrust when it moves forward. The discharge end of the third transmission channel is sequentially provided with a first pressing mechanism 75 and a pressure plate mechanism 76, with the pressure plate mechanism 76 located at one end of the coarse grinding mechanism 8; the first pressing mechanism 75 is used to adjust the thrust of the bearing outer ring. The first clamping mechanism 75 includes a height adjustment assembly. A longitudinal plate 754 is mounted on the adjusting end of the height adjustment assembly. A support plate 753 is mounted on one end of the longitudinal plate 754. A wheel seat is mounted below the support plate 753. A clamping wheel 751 is installed inside the wheel seat. Guide rods 752 are fixed to both ends of the wheel seat. The upper end of the guide rod 752 passes through the support plate 753 and is slidably connected to it. A spring is sleeved on the guide rod 752 located below the support plate 753, giving the clamping wheel 751 elasticity. The height adjustment assembly is used to adjust the position of the clamping wheel 751 to adjust the distance between the clamping wheel 751 and the threaded roller 74. (The last sentence appears to be incomplete and possibly refers to a different part of the bearing.) When the grinding wheel moves to the feed inlet of the rough grinding assembly, an adjustable elastic pressure roller is installed above it. The greater the downward pressure of the pressure roller 751, the greater the force transmitted to the inclined drive roller. The reverse force, along with the design of the threaded roller 74 with its own forward tilt angle, will cause the centerless bearing to receive a greater thrust as it enters the rough grinding assembly. The magnitude of the thrust of the centerless bearing moving continuously into the grinding machine is related to the grinding quality. This is a fundamental technical knowledge of grinding machines. Based on this characteristic, the technical problem solved by this connection is to adjust the thrust of the centerless steel ring entering the grinding machine by using the elastic pressure roller 751 installed above on the inlet side, thereby solving the problem of adjustable thrust and improving grinding quality. The height adjustment assembly includes a base mounted on a base, a lifting screw 758 rotatably connected to the base, a moving block 756 threadedly connected to the lifting screw 758, a limit rod 757 slidably inserted into the moving block 756, both ends of the limit rod 757 being fixed to the base, a longitudinal plate 754 mounted on the moving block 756, and a first adjusting handwheel 755 fixed to one end of the lifting screw 758. By rotating the lifting screw 758 through the first adjusting handwheel 755, the moving block 756 moves horizontally on the lifting screw 758 through the threaded engagement between the lifting screw 758 and the moving block 756 and the sliding connection with the limit rod 757, thereby adjusting the position of the pressure wheel 751. The first pressure plate mechanism 76 includes a scraper 761 and a lifting adjustment mechanism 762. The scraper 761 is mounted on the lifting adjustment mechanism 762, and the lifting adjustment mechanism 762 is mounted on the sixth frame 71 via a connecting rod. The scraper 761 is made of wear-resistant and oil-resistant material and contacts the threaded roller 74 to remove grinding fluid or oil from the roller, preventing slippage and maintaining thrust. The first height adjustment mechanism 78 is height-adjusted via an electric push rod; the first longitudinal adjustment mechanism 73 includes a longitudinal seat and a longitudinal lead screw rotatably mounted in the longitudinal seat. A sliding block 1003 is threadedly connected to the longitudinal lead screw, and the sliding block 1003 is slidably connected to the longitudinal seat. The base is mounted on the sliding block 1003. A second adjustment handwheel is installed at one end of the longitudinal lead screw. The longitudinal lead screw is rotated by the second adjustment handwheel. The sliding block 1003 drives the base to move horizontally by utilizing the threaded engagement between the longitudinal lead screw and the sliding block 1003 and the sliding connection between the sliding block 1003 and the longitudinal seat. The second spacing adjustment mechanism 79 includes a bidirectional lead screw rotatably installed in the base. Both ends of the bidirectional lead screw are threadedly connected to supports for mounting threaded rollers 74. Both ends of the supports are connected to the threaded rollers 74 through an angle adjustment mechanism, and the supports are slidably connected to the base. One end of the bidirectional lead screw is fixed with a third adjustment handwheel. By rotating the bidirectional lead screw through the third adjustment handwheel, the supports are moved closer or further apart by the threaded engagement between the bidirectional lead screw and the supports, as well as the sliding engagement between the supports and the base, thereby adjusting the distance between the two supports and adjusting the distance between the two threaded rollers 74 by using the supports. The angle adjustment mechanism includes a mounting block 775 rotatably connected to the end of the threaded roller 74. The lower end of the mounting block 775 has an elongated hole. The mounting block 775 is fixed to the end of the support by a locking bolt passing through the elongated hole. Both ends of the support are fixed with connecting blocks 776 for mounting the locking bolt. The length of the mounting block 775 relative to the support is adjusted by adjusting the position of the locking bolt in the elongated hole, thereby finely adjusting the tilt angle of the threaded roller 74. The roller drive mechanism 77 includes a first driven wheel 773 fixed to one end of the threaded roller 74 and a second driven wheel located at one end of the base. The second driven wheel is located between the two first driven wheels 773. A motor base is fixed to the lower end of the base, and a rotary motor 771 is mounted on the motor base. The output shaft of the rotary motor 771 is keyed to a drive wheel 774. The drive wheel 774, the first driven wheel 773, the second driven wheel, and the first driven wheel 773 are sequentially connected by a transmission belt 772. Through the auxiliary transmission of the second driven wheel, the drive of the threaded roller 74 is not affected when the spacing between the two threaded rollers 74 is adjusted. The coarse grinding mechanism 8 is installed at the outlet end of the first double roller feeder 7 and is used for coarse grinding of the outer ring of the bearing. The coarse grinding mechanism 8 includes a fourth frame 81, on which two third supports 84 are mounted. A roller gap adjustment mechanism 83 is mounted on the third supports 84, and a coarse grinding roller 82 is mounted on the roller gap adjustment mechanism 83. The coarse grinding roller 82 is driven by a coarse grinding motor, which drives the coarse grinding roller 82 to rotate, so that the coarse grinding roller 82 can coarsely grind the outer ring of the bearing that passes between the two coarse grinding rollers 82. The roller gap adjustment mechanism 83 is used to adjust the distance between the two coarse grinding rollers 82 to suit the coarse grinding of bearing outer rings of different diameters. The double roller receiving machine 9 is installed at the outlet end of the coarse grinding mechanism 8 and is used to directionally transfer the outer ring of the bearing after coarse grinding. The double roller receiving machine 9 includes a third frame 91, on which a second height adjustment mechanism is installed. A second longitudinal adjustment mechanism 96 is installed on the second height adjustment mechanism. A fifth spacing adjustment mechanism is installed on the second longitudinal adjustment mechanism 96. Two rollers 94 with adjustable tilt angles are installed on the fifth spacing adjustment mechanism. The two rollers 94 are not on the same horizontal plane. The two rollers 94 are driven by a second drive mechanism 92. Seventh baffles are provided on both sides of the third frame 91. The two rollers 94 are located between the two seventh baffles. The seventh baffles and the rollers 94 form a fourth transmission channel. A second clamping mechanism 95 for clamping the outer ring of the bearing is installed on one of the seventh baffles. The end of the rolling roller 94 away from the coarse grinding roller 82 is provided with an external thread section. The tilt angle adjustment method of the rolling roller 94 is the same as that of the threaded roller 74. The structure of the second height adjustment mechanism is the same as that of the first height adjustment mechanism 78. The structure of the second longitudinal adjustment mechanism 96 is the same as that of the first longitudinal adjustment mechanism 73. The structure of the fifth spacing adjustment mechanism is the same as that of the second spacing adjustment mechanism 79. The structure of the second pressing mechanism 95 is the same as that of the first pressing mechanism 75. These will not be described in detail here. A tunnel conveyor 10 is connected between the second double roller feeder 11 and the double roller receiving machine 9; the tunnel conveyor 10 can keep the axis of the outer ring of the shaft consistent with the tunnel axis and prevent tilting.

[0025] The tunnel conveyor 10 includes a fourth support 1001, on which a horizontal adjustment mechanism 1002 is mounted. A mounting mechanism 1005 is mounted on the sliding platform of the horizontal adjustment mechanism 1002. An inclined tunnel mounting frame 1006 is mounted on the mounting mechanism 1005. A conveying pipe 1004 is rotatably mounted on the tunnel mounting frame 1006. A servo motor 1008 is mounted on the upper surface of the tunnel mounting frame 1006. The conveying pipe 1004 communicates with the output shaft of the servo motor 1008. The transmission mechanism 1007 is connected to the transmission mechanism, and the servo motor 1008 drives the second transmission mechanism 1007 to rotate the conveying pipe 1004 inside the tunnel mounting frame 1006. The conveying pipe 1004 is responsible for conveying the outer ring of the bearing on the roller receiving machine to the second roller feeder. The servo motor 1008 makes the tunnel pipe 710 rotate, so that the axis of the outer ring of the bearing is aligned with the axis of the conveying pipe 1004, preventing the outer ring of the bearing from tilting, and solving the connection problem of different left and right positions or heights of the front and rear grinding machines.

[0026] The second transmission mechanism 1007 includes a transmission box, in which a drive gear connected to the output shaft of the servo motor 1008 and a driven gear fitted onto the outer wall of the grounding conveying pipe 1004 are installed. The drive gear and the driven gear are driven by a gear chain, so that the servo motor 1008 drives the conveying pipe 1004 to rotate.

[0027] The installation mechanism 1005 uses a vertical plate, the upper end of which is fixed to the side wall of the tunnel mounting frame 1006 to facilitate the provision of support for the delivery pipe 1004. The horizontal adjustment mechanism 1002 includes an adjustment seat, a lead screw, and a sliding platform. The lead screw is rotatably installed in the adjustment seat, and the sliding platform is slidably connected in the adjustment seat. The lead screw is inserted into the sliding platform and threadedly connected to the sliding platform. An adjustment knob is installed at one end of the lead screw. The adjustment knob drives the lead screw to rotate, so that the sliding platform can move horizontally on the adjustment seat. The structure of the second double roller feeder 11 is the same as that of the first double roller feeder 7, and will not be described again here. This equipment is suitable for the continuous production of multiple bearing outer rings. The structure of the second double roller feeder 11 is the same as that of the first double roller feeder 7. During the initial feeding and the end of production, the second double roller feeder 11 needs to use a cylinder of the same size as the bearing outer ring for auxiliary feeding so that all bearing outer rings on the equipment can be produced. A worker manually pushes a material (five frames) along with a trolley into the grab-frame elevator 1. The grab-frame elevator 1 pours the bearing outer ring into the rear tilting elevator 2. The rear tilting elevator 2 lifts the bearing outer ring into the buffer conveyor 3, and then the buffer conveyor 3 sends it to the flat-rolling material sorting machine 4. After the material sorting machine finishes sorting, it lays flat and discharges to the face recognition mechanism 5. After the face recognition mechanism 5 finishes recognizing the material, it discharges it in an orderly manner into the buffer material channel 6. The bearing outer ring is then conveyed through the buffer material channel 6 and tunnel pipe 710 to the first double roller feeder 7, and then from the second... A double roller feeder 7 transports the material to the rough grinding mechanism 8 for external cylindrical grinding. After the external cylindrical grinding is completed, the material is discharged and received by a double roller receiving machine 9 and transported to a tunnel conveyor 10. The tunnel conveyor 10 then feeds the material to a second double roller feeder, which in turn feeds the bearing outer ring into the fine grinding mill 12 for external cylindrical grinding. This process realizes automatic face recognition and material feeding for the centerless grinder and automated connection between grinders, improving the grinding quality of the centerless grinder, saving manpower, and promoting the overall quality of the product.

[0028] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An automated production line for grinding the outer ring of a centerless bearing, characterized in that: include: The rear tilting elevator (2) is used to lift the bearing outer ring from a low position to a high position; The grab-frame elevator (1) is installed at the inlet end of the rear tilt elevator (2) and is used to lift the material box containing the bearing outer ring and pour the bearing outer ring into the inlet of the rear tilt elevator (2); A buffer conveyor (3) is installed at the outlet of the rear tilting elevator (2) to buffer and convey the bearing outer ring that has been tilted out by the rear tilting elevator (2); The flat rubbing and sorting machine (4) is installed at the outlet of the buffer conveyor (3) to flat rub and sort the buffered bearing outer rings, so that the bearing outer rings are conveyed one by one flat; The face recognition mechanism (5) is installed at the outlet end of the flat rolling and sorting machine (4) to detect and adjust the face recognition of a single conveyed bearing outer ring so that the conveyed bearing outer rings are on the same face. The output end of the first double roller feeder (7) is connected to the inlet end of the first double roller feeder (7) through the buffer channel (6) to make the outer ring of the bearing stand up to maintain coaxial transmission; The coarse grinding mechanism (8) is installed at the outlet end of the first double roller feeder (7) and is used for coarse grinding of the outer ring of the bearing. The double roller receiving machine (9) is installed at the outlet end of the coarse grinding mechanism (8) and is used to directionally transfer the outer ring of the bearing after coarse grinding. A second double roller feeder (11) is used to connect to the fine grinding mill (12), and a tunnel conveyor (10) is connected between the second double roller feeder (11) and the double roller receiving machine (9). The tunnel conveyor (10) can keep the axis of the outer ring of the shaft consistent with the tunnel axis and prevent it from tipping over.

2. The automated production line for grinding the outer ring of a centerless bearing according to claim 1, characterized in that: The first double roller feeder (7) includes a sixth frame (71), on which a first height adjustment mechanism (78) is installed. On the first height adjustment mechanism (78) a first longitudinal adjustment mechanism (73) is installed. On the first longitudinal adjustment mechanism (73) a base is installed. On the base a second spacing adjustment mechanism (79) is installed. On the second spacing adjustment mechanism (79) two threaded rollers (74) with adjustable tilt angles are installed. The two threaded rollers (74) are not on the same horizontal plane. The two threaded rollers (74) are driven by a roller drive mechanism (77). A tunnel pipe (710) is provided on the threaded roller (74) located at the discharge end of the buffer channel (6). The tunnel pipe (710) is connected to the base through a connecting frame. The tunnel pipe (710) rotates passively following the rotation of the threaded roller (74).

3. The automated production line for grinding the outer ring of a centerless bearing according to claim 2, characterized in that: The base is fixed with a sixth baffle (72) on both sides. The sixth baffle (72) and two threaded rollers (74) form a third transmission channel. The outer ring of the bearing that slides down through the buffer channel (6) enters the tunnel tube (710) at an angle or lie flat. Then, through the high-speed driven movement of the tunnel tube (710), the centerless steel ring that has fallen into the interior stands up.

4. The automated production line for grinding the outer ring of a centerless bearing according to claim 3, characterized in that: The discharge end of the third transmission channel is provided with a first pressing mechanism (75) and a pressure plate mechanism (76) in sequence, and the pressure plate mechanism (76) is located at one end of the coarse grinding mechanism (8).

5. The automated production line for grinding the outer ring of a centerless bearing according to claim 4, characterized in that: The first pressing mechanism (75) includes a height adjustment component. A longitudinal plate (754) is installed at the adjustment end of the height adjustment component. A support plate (753) is installed at one end of the longitudinal plate (754). A wheel seat is installed below the support plate (753). A pressing wheel (751) is installed inside the wheel seat. Guide rods (752) are fixed at both ends of the wheel seat. The upper end of the guide rod (752) passes through the support plate (753) and is slidably connected to the support plate (753). A spring is sleeved on the guide rod (752) located below the support plate (753).

6. The automated production line for grinding the outer ring of a centerless bearing according to claim 5, characterized in that: The first longitudinal adjustment mechanism (73) includes a longitudinal seat and a longitudinal lead screw rotatably installed in the longitudinal seat. A sliding block (1003) is threadedly connected to the longitudinal lead screw, and the sliding block (1003) is slidably connected to the longitudinal seat. The base is installed on the sliding block (1003), and a second adjustment handwheel is installed at one end of the longitudinal lead screw.

7. The automated production line for grinding the outer ring of a centerless bearing according to claim 6, characterized in that: The second spacing adjustment mechanism (79) includes a bidirectional lead screw rotatably installed in the base. Both ends of the bidirectional lead screw are threadedly connected to supports for mounting threaded rollers (74). Both ends of the supports are connected to the threaded rollers (74) through an angle adjustment mechanism, and the supports are slidably connected to the base. One end of the bidirectional lead screw is fixed with a third adjustment handwheel.

8. The automated production line for grinding the outer ring of a centerless bearing according to claim 7, characterized in that: The angle adjustment mechanism includes a mounting block (775) rotatably connected to the end of the threaded roller (74). The lower end of the mounting block (775) has an elongated hole, and the mounting block (775) is fixed to the end of the support by a locking bolt passing through the elongated hole.

9. An automated production line for grinding the outer ring of a centerless bearing according to claim 8, characterized in that: The roller drive mechanism (77) includes a first driven wheel (773) fixed to one end of the threaded roller (74) and a second driven wheel located at one end of the base. The second driven wheel is located between the two first driven wheels (773). A motor base is fixed to the lower end of the base. A rotary motor (771) is installed on the motor base. The output shaft of the rotary motor (771) is keyed to a drive wheel (774). The drive wheel (774), the first driven wheel (773), the second driven wheel and the first driven wheel (773) are sequentially connected by a transmission belt (772).

10. An automated production line for grinding the outer ring of a centerless bearing according to claim 9, characterized in that: The double roller receiving machine (9) includes a third frame (91), on which a second height adjustment mechanism is installed. On the second height adjustment mechanism, a second longitudinal adjustment mechanism (96) is installed. On the second longitudinal adjustment mechanism (96), a fifth spacing adjustment mechanism is installed. On the fifth spacing adjustment mechanism, two rollers (94) with adjustable tilt angle are installed. The two rollers (94) are not on the same horizontal plane. The two rollers (94) are driven by a second drive mechanism (92). Seventh baffles are provided on both sides of the third frame (91). The two rollers (94) are located between the two seventh baffles. The seventh baffles and the rollers (94) form a fourth transmission channel. On one of the seventh baffles, a second pressing mechanism (95) for pressing the outer ring of the bearing is installed.

11. An automated production line for grinding the outer ring of a centerless bearing according to claim 10, characterized in that: The end of the rolling roller (94) away from the coarse grinding roller (82) is provided with an external thread section, and the tilt angle adjustment method of the rolling roller (94) is the same as that of the threaded roller (74).

12. The automated production line for grinding the outer ring of a centerless bearing according to claim 1, characterized in that: The face recognition mechanism (5) includes a second frame (57), a second conveyor (51) mounted on the upper end of the second frame (57), and a shooting component (54) located above the second conveyor (51). One end of the second conveyor (51) is connected to the first channel, and the other end of the second conveyor (51) is provided with a paddle assembly (55) for flipping the outer ring of the bearing. A guide channel (56) for vertically transmitting the outer ring of the bearing is provided below the other end of the second conveyor (51). The second conveyor (51) is provided with a second transmission channel with adjustable spacing.

13. The automated production line for grinding the outer ring of a centerless bearing according to claim 10, characterized in that: The second transmission channel includes fixed baffles on both sides of the second conveyor belt and a fourth baffle (52) between the two fixed baffles. A first spacing adjustment mechanism (53) is provided between the two fixed baffles. The fourth baffle (52) is installed on the first spacing adjustment mechanism (53). The paddle assembly (55) is located at the output end of the second transmission channel.

14. The automated production line for grinding the outer ring of a centerless bearing according to claim 13, characterized in that: The tunnel conveyor (10) includes a fourth support (1001), on which a horizontal adjustment mechanism (1002) is installed. An installation mechanism (1005) is installed on the sliding platform of the horizontal adjustment mechanism (1002). A tunnel mounting frame (1006) is installed on the installation mechanism (1005) and is inclined. A conveying pipe (1004) is rotatably installed on the tunnel mounting frame (1006). A servo motor (1008) is installed on the upper surface of the tunnel mounting frame (1006). The conveying pipe (1004) and the output shaft of the servo motor (1008) are connected by a second transmission mechanism (1007).

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