Grinding machine for machining inner ring of bearing

Abstract

The utility model discloses a grinding machine for machining a bearing inner ring, belongs to the technical field of bearing machining, and solves the problems that the bearing inner ring arrives at the position where the bearing inner ring belongs in a rolling mode, then the bearing inner ring is positioned and ground, the grinding mode is suitable for a conventional standard bearing inner ring, and once a non-standard bearing inner ring appears, the bearing inner ring cannot be ground. And the whole set of equipment is not applicable any more. Comprising a vibration disc, a feeding track communicating with the vibration disc, a horizontal sliding rail, a horizontal sliding seat connected to the horizontal sliding rail in a sliding mode, a fixed shell fixedly connected to the horizontal sliding seat, a rotating shell rotationally connected to the fixed shell, a grabbing assembly arranged on the rotating shell and a control circuit. The control circuit controls the vibration disc to work intermittently and controls the rotating shell to rotate in a reciprocating mode. The distance sensor and the control circuit are used for controlling the motor and the vibration disc, automatic feeding, grabbing and grinding of the bearing inner rings are achieved, the device adapts to different specifications, and the machining efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of bearing processing, in particular to a grinding machine for processing the inner ring of a bearing. Background Art

[0002] Grinding the inner ring of a bearing is a precision machining process primarily designed to remove burrs, oxide layers, and other defects from the inner ring surface, thereby improving the bearing's rotational accuracy and extending its service life. This process typically utilizes a grinder to smooth the inner ring surface. Grinding not only improves the bearing's fit but also reduces stress concentration caused by surface irregularities, thereby reducing vibration and noise during high-speed rotation. Furthermore, the polished inner ring surface is smoother, facilitating the formation of a lubricating film, further enhancing the bearing's operating efficiency and reliability.

[0003] When grinding the inner ring of the bearing through the grinder, it also needs to be transported by the feeding structure. However, in the actual transportation process, the inner ring of the bearing is basically rolled to its position, and then the inner ring of the bearing is positioned and ground. This grinding method is suitable for conventional standard bearing inner rings. Once a non-standard bearing inner ring appears, the entire set of equipment will no longer be applicable.

[0004] Therefore, a bearing inner ring processing grinding machine is proposed to solve or alleviate the above problems. Utility Model Content

[0005] The purpose of the utility model is to solve the shortcomings of the prior art and to propose a bearing inner ring processing grinder.

[0006] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0007] A bearing inner ring processing grinder includes a vibrating plate, a feeding track connected to the vibrating plate, a horizontal slide rail, a horizontal slide slidably connected to the horizontal slide rail, a fixed shell fixedly connected to the horizontal slide rail, a rotating shell rotatably connected to the fixed shell, and a grabbing assembly arranged on the rotating shell. The control circuit also includes a control circuit that controls the intermittent operation of the vibrating plate and the reciprocating rotation of the rotating shell.

[0008] Preferably, the vibration plate includes a vibration motor, the control circuit includes a distance sensor arranged at the outlet of the feeding track, and a trigger circuit, the output end of the distance sensor is coupled to the trigger circuit, and the vibration motor is connected to the power supply through the trigger circuit.

[0009] Preferably, the trigger circuit includes a first voltage comparator and a transistor switch, the output end of the distance sensor is coupled to the input end of the first voltage comparator, the base of the transistor switch is coupled to the output end of the first voltage comparator, the collector of the transistor switch is connected to the power supply, and the emitter of the transistor switch is connected to the vibration motor and then grounded.

[0010] Preferably, a driving motor is fixedly connected in the fixed shell, and the output shaft of the driving motor is coaxially fixedly connected to the rotating shell. The control circuit also includes an infrared generator, an infrared receiver, a judgment circuit, and a controller. The infrared generator is arranged at the discharge port of the feeding track, and the infrared receiver is arranged on the grabbing component. The output end of the infrared receiver is coupled to one of the input ends of the judgment circuit, the output end of the distance sensor is coupled to the other input end of the judgment circuit, and the output end of the judgment circuit is coupled to the input end of the controller. The controller controls the forward and reverse rotation, and start and stop of the driving motor.

[0011] Preferably, the judgment circuit is a second voltage comparator and an AND gate circuit, the input end of the second voltage comparator is coupled to the output end of the distance sensor, the output end of the second voltage comparator is coupled to the input end of the AND gate circuit, the output end of the infrared receiver is coupled to the other input end of the AND gate circuit, and the controller is an STM32 microcontroller.

[0012] Preferably, the rotating shell is fixedly connected to a vertical slide rail arranged vertically, a vertical slide slidably connected to the vertical slide rail, a servo motor fixedly connected to the upper end of the vertical slide rail, and a screw rod, the screw rod is coaxially fixedly connected to the output shaft of the servo motor, the vertical slide is threadedly connected to the screw rod, and the grabbing assembly is arranged on the vertical slide.

[0013] Preferably, the grabbing assembly includes a connecting shell, a connecting frame fixedly connected to the top surface of the connecting shell, a driving motor fixedly connected to the connecting frame, a driving wheel, a driven wheel, a transmission shaft, and an electric chuck, the transmission shaft vertically penetrates the connecting shell and is rotatably connected, the electric chuck is fixedly connected to the lower end of the transmission shaft, the driven wheel is fixedly connected to the upper end of the transmission shaft, the driving motor is fixedly connected to the driving wheel after passing through the connecting frame, and the driving wheel and the driven wheel are connected by a transmission belt.

[0014] The utility model has the following beneficial effects:

[0015] The utility model utilizes a distance sensor and a control circuit to control a motor and a vibration plate to realize automatic feeding, grabbing and grinding of the inner ring of the bearing, adapts to different specifications, and improves processing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following is a brief introduction to the drawings required for use in the embodiments. It should be understood that the following drawings only illustrate certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying any creative work.

[0017] Figure 1 It is a structural diagram of the utility model;

[0018] Figure 2 This is a structural block diagram of the control circuit in this utility model.

[0019] 1. Vibrating plate; 2. Feeding track; 3. Horizontal slide rail; 4. Horizontal slide seat; 5. Fixed shell; 6. Rotating shell; 7. Vertical slide rail; 8. Vertical slide seat; 9. Connecting shell; 10. Electric chuck; 11. Servo motor; 12. Connecting frame; 13. Driving motor; 14. Driven wheel; 15. Distance sensor; 16. Trigger circuit; 17. Vibrating motor; 18. Infrared generator; 19. Infrared receiver; 20. Judgment circuit; 21. Controller; 22. Driving motor. DETAILED DESCRIPTION

[0020] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings herein can be arranged and designed in various different configurations.

[0021] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but rather merely represents selected embodiments of the present invention. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without creative effort are also within the scope of protection of the present invention.

[0022] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings.

[0023] In the description of the present invention, it should be understood that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, or are the orientation or position relationship in which the utility model product is usually placed when in use, or are the orientation or position relationship commonly understood by those skilled in the art. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0024] Furthermore, the terms “first,” “second,” “third,” etc., are merely used for distinguishing descriptions and are not to be understood as indicating or implying relative importance.

[0025] It should also be noted that, in the description of this utility model, unless otherwise expressly specified or limited, the terms "disposed," "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, and internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0026] A bearing inner ring grinding machine, such as Figure 1 As shown, it includes a vibration plate 1, a feeding track 2 connected to the vibration plate 1, a horizontal slide rail 3, a horizontal slide 4 slidably connected to the horizontal slide rail 3, a fixed shell 5 fixedly connected to the horizontal slide 4, a rotating shell 6 rotatably connected to the fixed shell 5, and a grabbing assembly arranged on the rotating shell 6, and also includes a control circuit, which controls the intermittent operation of the vibration plate 1 and the reciprocating rotation of the rotating shell 6.

[0027] The vibration plate 1 includes a vibration motor 17, such as Figure 2 As shown, the control circuit includes a distance sensor 15 and a trigger circuit 16 arranged at the exit of the feeding track 2. The output end of the distance sensor 15 is coupled to the trigger circuit 16. The vibration motor 17 is connected to the power supply through the trigger circuit 16. The trigger circuit 16 includes a first voltage comparator and a transistor switch. The output end of the distance sensor 15 is coupled to the input end of the first voltage comparator, the base of the transistor switch is coupled to the output end of the first voltage comparator, the collector of the transistor switch is connected to the power supply, and the emitter of the transistor switch is connected to the vibration motor 17 and then grounded.

[0028] The fixed shell 5 is fixedly connected to the driving motor 22, and the output shaft of the driving motor 22 is coaxially fixedly connected to the rotating shell 6. Figure 2As shown, the control circuit also includes an infrared generator 18, an infrared receiver 19, a judgment circuit 20, and a controller 21. The infrared generator 18 is arranged at the discharge port of the feeding track 2, and the infrared receiver 19 is arranged on the grabbing component. The output end of the infrared receiver 19 is coupled to one of the input ends of the judgment circuit 20, the output end of the distance sensor 15 is coupled to the other input end of the judgment circuit 20, the output end of the judgment circuit 20 is coupled to the input end of the controller 21, and the controller 21 controls the forward and reverse rotation, and start and stop of the drive motor 22. The judgment circuit 20 is a second voltage comparator and an AND gate circuit. The input end of the second voltage comparator is coupled to the output end of the distance sensor 15, the output end of the second voltage comparator is coupled to the input end of the AND gate circuit, the output end of the infrared receiver 19 is coupled to the other input end of the AND gate circuit, and the controller 21 is an STM32 single-chip microcomputer.

[0029] The rotating shell 6 is fixedly connected to a vertical slide rail 7 set vertically, a vertical slide 8 slidably connected to the vertical slide rail 7, a servo motor 11 fixedly connected to the upper end of the vertical slide rail 7, and a screw rod. The screw rod is coaxially fixedly connected to the output shaft of the servo motor 11. The vertical slide 8 is threadedly connected to the screw rod. The grabbing assembly is arranged on the vertical slide 8. The grabbing assembly includes a connecting shell 9, a connecting frame 12 fixedly connected to the top surface of the connecting shell 9, a driving motor 13 fixedly connected to the connecting frame 12, a driving wheel, a driven wheel 14, a transmission shaft, and an electric chuck 10. The transmission shaft vertically penetrates the connecting shell 9 and is rotatably connected. The electric chuck 10 is fixedly connected to the lower end of the transmission shaft, and the driven wheel 14 is fixedly connected to the upper end of the transmission shaft. After the driving motor 13 penetrates the connecting frame 12, it is fixedly connected to the driving wheel. The driving wheel and the driven wheel 14 are connected by a transmission belt.

[0030] In actual application of the present invention, when the distance sensor 15 determines that there is no bearing inner ring at the exit of the feeding track 2, the distance it detects is greater than the distance reference in the first voltage comparator, and the distance it detects is less than the distance reference in the second voltage comparator, and a high-level first comparison signal and a low-level second comparison signal are respectively sent out. Even if the infrared receiver 19 of the judgment circuit 20 can receive the infrared signal from the infrared generator 18, it cannot obtain two high-level signals, and the driving motor 22 is still kept in a stationary state. The first comparison signal is given to the trigger circuit 16, so that the trigger circuit 16, the vibration motor 17, and the power supply path are energized, and the bearing inner ring is then sent to the exit of the feeding track 2, and the distance sensor 15 detects The measured distance becomes smaller, and the detected distance is smaller than the distance reference in the first voltage comparator and larger than the distance reference in the second voltage comparator, so a low-level first comparison signal and a high-level second comparison signal are generated. The vibration motor 17 is therefore powered off, and the controller 21 obtains the judgment signal from the judgment circuit 20 in response to the infrared signal and the second comparison signal, and controls the drive motor 22, the drive motor 13, the servo motor 11, and the electric chuck 10 to work, thereby grabbing the inner ring of the bearing located at the exit of the feeding track 2, and then performing grinding processing. After the processing is completed, the material is unloaded, and the above actions are repeated. It can grab, grind, and unload various types of bearing rings in batches, and will not fail due to changes in the specifications of the bearing rings.

[0031] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that the present invention is susceptible to various modifications and variations. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A bearing inner ring grinding machine, characterized in that: The invention comprises a vibration plate (1), a feeding track (2) connected to the vibration plate (1), a horizontal slide rail (3), a horizontal slide seat (4) slidably connected to the horizontal slide rail (3), a fixed shell (5) fixedly connected to the horizontal slide seat (4), a rotating shell (6) rotatably connected to the fixed shell (5), and a grabbing assembly arranged on the rotating shell (6), and also comprises a control circuit, wherein the control circuit controls the vibration plate (1) to work intermittently and controls the rotating shell (6) to rotate back and forth.

2. A bearing inner ring grinding machine according to claim 1, characterized in that: The vibration plate (1) includes a vibration motor (17), the control circuit includes a distance sensor (15) arranged at the outlet of the feeding track (2), and a trigger circuit (16), the output end of the distance sensor (15) is coupled to the trigger circuit (16), and the vibration motor (17) is connected to a power supply via the trigger circuit (16).

3. The bearing inner ring grinding machine according to claim 2, characterized in that: The trigger circuit (16) includes a first voltage comparator and a transistor switch, the output end of the distance sensor (15) is coupled to the input end of the first voltage comparator, the base of the transistor switch is coupled to the output end of the first voltage comparator, the collector of the transistor switch is connected to a power supply, and the emitter of the transistor switch is connected to the vibration motor (17) and then grounded.

4. The bearing inner ring grinding machine according to claim 2, characterized in that: A driving motor (22) is fixedly connected inside the fixed shell (5), and the output shaft of the driving motor (22) is coaxially fixedly connected to the rotating shell (6). The control circuit also includes an infrared generator (18), an infrared receiver (19), a judgment circuit (20), and a controller (21). The infrared generator (18) is arranged at the discharge port of the feeding track (2), and the infrared receiver (19) is arranged on the grabbing component. The output end of the infrared receiver (19) is coupled to one of the input ends of the judgment circuit (20), the output end of the distance sensor (15) is coupled to the other input end of the judgment circuit (20), and the output end of the judgment circuit (20) is coupled to the input end of the controller (21). The controller (21) controls the forward and reverse rotation, and the start and stop of the driving motor (22).

5. The bearing inner ring grinding machine according to claim 4, characterized in that: The judgment circuit (20) is a second voltage comparator and an AND gate circuit, the input end of the second voltage comparator is coupled to the output end of the distance sensor (15), the output end of the second voltage comparator is coupled to the input end of the AND gate circuit, the output end of the infrared receiver (19) is coupled to the other input end of the AND gate circuit, and the controller (21) is an STM32 single-chip microcomputer.

6. The bearing inner ring grinding machine according to claim 1, characterized in that: The rotating shell (6) is fixedly connected to a vertical slide rail (7) arranged vertically, a vertical slide seat (8) slidably connected to the vertical slide rail (7), a servo motor (11) fixedly connected to the upper end of the vertical slide rail (7), and a screw rod, wherein the screw rod is coaxially fixedly connected to the output shaft of the servo motor (11), the vertical slide seat (8) is threadedly connected to the screw rod, and the grabbing assembly is arranged on the vertical slide seat (8).

7. The bearing inner ring grinding machine according to claim 6, characterized in that: The grabbing assembly comprises a connecting shell (9), a connecting frame (12) fixedly connected to the top surface of the connecting shell (9), a driving motor (13) fixedly connected to the connecting frame (12), a driving wheel, a driven wheel (14), a transmission shaft, and an electric chuck (10); the transmission shaft vertically penetrates the connecting shell (9) and is rotatably connected; the electric chuck (10) is fixedly connected to the lower end of the transmission shaft; the driven wheel (14) is fixedly connected to the upper end of the transmission shaft; the driving motor (13) penetrates the connecting frame (12) and is fixedly connected to the driving wheel; the driving wheel and the driven wheel (14) are connected by a transmission belt.

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