Automatic feeding and discharging numerical control machine tool for bearing rings

Abstract

The utility model discloses an automatic feeding and discharging numerical control machine tool for a bearing ring, belongs to the technical field of bearing rings, and solves the problems that in the rolling process, the outer ring of the bearing ring collides with other hard structures, damage such as notches can be caused to the peripheral wall of the bearing ring, and even if fine cutting is carried out, the damage to the outer ring of the bearing ring cannot be eliminated. Comprising a stacking assembly, a flat feeding assembly, a machine tool assembly and a mechanical arm. The stacking assembly communicates with a feeding port of the flat feeding assembly, and the stacking assembly guides the bearing rings to leave in a flat placing mode. A discharge port of the horizontal feeding assembly communicates with the interior of the machine tool assembly. By rotating the material disc, the bearing ring enters the caulking groove and is attracted by the electromagnet and moved to the workbench, in the process, the first conveying belt and the second conveying belt provide power, the permanent magnet blocks are attracted to stop displacement, the mechanical arm clamps the ring and installs the ring to the electric chuck, the motor drives the ring to rotate, the servo motor drives the tool apron to cut the inner ring and the outer ring, and the quality of the ring is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of bearing rings, in particular to a numerically controlled machine tool for automatically loading and unloading bearing rings. Background Art

[0002] The processing of bearing rings is a key link in bearing manufacturing, which directly affects the precision and performance of bearings. Bearing rings are usually made of high-performance materials such as high-carbon chromium bearing steel, and need to be processed by precision machine tools to achieve the required size and geometry. The processing process usually includes two stages: rough machining and fine machining.

[0003] In the rough machining stage, the main purpose is to remove excess material and form a ring close to the final size. This step usually uses a lathe to turn the outer diameter and inner diameter, as well as milling or grinding the end face to ensure the basic shape and size of the ring. During the rough machining process, the stability of the machine tool and the durability of the tool are key factors to ensure machining efficiency and material removal rate.

[0004] The subsequent finishing stage focuses more on accuracy and surface quality. Finish turning, grinding and super finishing are commonly used finishing methods. Finish turning can further improve the dimensional accuracy and surface finish of the ring. Grinding is an important means to improve the surface quality of the ring. By using precision grinders and grinding tools, extremely high surface finish and precise dimensional control can be obtained. Super finishing is a special grinding process that can further improve the surface quality of the ring and reduce surface roughness through special grinding fluids and grinding tools while maintaining high accuracy.

[0005] Before the bearing ring is cut by a machine tool, it is necessary to transfer the bearing ring to the machine tool through a loading and unloading mechanism. The current transfer method is mainly to make the bearing ring roll on its outer peripheral wall. The positions of the bearing ring that require precision are its outer ring and inner ring. During the rolling process, the outer ring of the bearing ring collides with other hard structures, causing damage such as notches on its outer peripheral wall. Even if fine cutting is performed, the damage to the outer ring cannot be eliminated, which ultimately affects the product quality of the bearing ring.

[0006] Therefore, a bearing ring automatic loading and unloading CNC machine tool is proposed to solve or alleviate the above problems. Utility Model Content

[0007] The utility model aims to solve the shortcomings in the prior art and proposes a CNC machine tool for automatically loading and unloading bearing rings.

[0008] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0009] A CNC machine tool for automatically loading and unloading bearing rings, comprising a material coding component, a flat feeding component, a machine tool component, and a mechanical arm;

[0010] The material coding component is connected to the feed port of the horizontal feeding component, and the material coding component guides the bearing ring to leave in a horizontal manner;

[0011] The discharge port of the horizontal feeding assembly is connected to the machine tool assembly, and the horizontal feeding assembly guides the bearing ring to move horizontally into the machine tool assembly;

[0012] The mechanical arm is arranged on one side of the machine tool assembly, and the mechanical arm clamps the flat bearing ring to the electric chuck in the machine tool assembly.

[0013] Preferably, the coding assembly includes a material tray with an open top and an inclined arrangement, a turntable rotatably connected to the material tray, a dividing sleeve fixedly connected to the inner circumferential wall of the material tray and arranged in contact with the top surface of the turntable, and a discharge barrel. The cross-section of the material tray is also circular, and the outer ring of the turntable is recessed inward to form a plurality of grooves for accommodating a single bearing ring. A pre-separation space is formed between the dividing sleeve and the material tray, and the discharge barrel is connected to the pre-separation space.

[0014] Preferably, the coding assembly further comprises a driving motor, the driving motor is fixedly connected to a closed side of the material tray, and the output shaft of the driving motor passes through the material tray and is coaxially connected to the turntable.

[0015] Preferably, the coding assembly also includes a cylinder fixedly connected to the bottom surface of the material tray, the telescopic end of the cylinder is fixedly connected to a piston rod, the end of the piston rod is fixedly connected to an electromagnet block attached to the bottom surface of the material tray, and the electromagnet block moves back and forth in the length direction of the pre-leaving space.

[0016] Preferably, the horizontal feeding assembly includes a plurality of arc rails and a plurality of straight rails fixedly connected thereto, a track space one is formed between the plurality of arc rails, a track space two is formed between the plurality of straight rails, the track space one is connected to the track space two, and the bottom surface of the track space two is open, and the groove width at the open bottom surface of the track space two is smaller than the outer diameter of the bearing ring.

[0017] Preferably, the horizontal feeding assembly further comprises a plurality of groups of U-shaped connecting plates, and the connecting plates are fixedly connected to the outer rings of a plurality of arc rails or a plurality of straight rails.

[0018] Preferably, the flat feeding assembly also includes conveyor belt one and conveyor belt two, and the conveyor belt one and conveyor belt two are arranged below the track space two, and are located in the bottom opening of the track space two, and the bandwidth of the conveyor belt one and conveyor belt two is less than or equal to the groove width of the bottom opening of the track space two.

[0019] Preferably, the horizontal feeding assembly further comprises two connecting frames fixedly connected to one end of the plurality of straight rails away from the arc rail, and a limiting top plate horizontally fixedly connected between the connecting frames.

[0020] Preferably, the machine tool assembly includes a base, a casing fixedly connected to the top surface thereof, an electric chuck rotatably connected to the end surface of the casing, a sliding seat displaceably arranged on the top surface of the base, a workbench fixedly connected to the top surface of the sliding seat via a connecting frame, and a tool holder fixedly connected to the top surface of the workbench. An electric motor is fixedly connected inside the casing, and the output shaft of the motor passes through the casing. The electric chuck is coaxially fixedly connected to the output shaft of the motor, and a permanent magnet block is fixedly connected between the sliding seat and the workbench.

[0021] Preferably, a servo motor, a slide rail, and a screw rod coaxially connected to the output shaft of the servo motor are fixedly connected to the base, the sliding seat is slidably connected to the slide rail, and the screw rod is threadedly connected to the sliding seat.

[0022] The utility model has the following beneficial effects:

[0023] The utility model rotates the material tray to make the bearing ring enter the embedding groove, and the electromagnet adsorbs and moves the bearing ring to the workbench. In the process, the first and second conveyor belts provide power, the permanent magnet block adsorbs and stops the displacement, the mechanical arm clamps the ring and installs it on the electric chuck, the motor drives the rotation, and the servo motor drives the tool holder to cut the inner and outer rings. During the displacement process, the contact between the inner and outer rings of the bearing ring and the external structure is reduced to reduce the possibility of its damage and ensure the quality of the ring. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 The structure of the utility model is shown in FIG. Figure 1 ;

[0025] Figure 2 for Figure 1 The enlarged view of point A in the middle;

[0026] Figure 3 The structure of the utility model is shown in FIG. Figure 2 ;

[0027] Figure 4 for Figure 3 The enlarged view of point B in the middle;

[0028] Figure 5 The structure of the utility model is shown in FIG. Figure 3 ;

[0029] Figure 6 for Figure 5 Enlarged view of point C in the middle.

[0030] 1. Material tray; 2. Turntable; 3. Embedded groove; 4. Driving motor; 5. Splitting sleeve; 6. Discharging barrel; 7. Arc rail; 8. Straight rail; 9. Connecting plate; 10. Conveyor belt 1; 11. Conveyor belt 2; 12. Cylinder; 13. Piston rod; 14. Electromagnet block; 15. Connecting frame; 16. Limiting top plate; 17. Base; 18. Slide rail; 19. Screw; 20. Servo motor; 21. Sliding seat; 22. Workbench; 23. Knife holder; 24. Casing; 25. Electric chuck. DETAILED DESCRIPTION

[0031] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0032] A CNC machine tool for automatically loading and unloading bearing rings, such as Figure 1-6 As shown, it includes a coding component, a flat feeding component, a machine tool component, and a mechanical arm;

[0033] The coding assembly is communicated with the feed inlet of the horizontal feeding assembly, and the coding assembly guides the bearing ring to leave in a flat manner. The coding assembly includes a material tray 1 with an open top surface and an inclined arrangement, a turntable 2 rotatably connected to the material tray 1, a dividing sleeve 5 fixedly connected to the inner circumferential wall of the material tray 1 and arranged in contact with the top surface of the turntable 2, a discharging barrel 6, a driving motor 4, and a cylinder 12 fixedly connected to the bottom surface of the material tray 1. The cross-section of the material tray 1 is also circular, and the outer ring of the turntable 2 is recessed inward to form a plurality of embedded grooves 3 for accommodating a single bearing ring. A pre-leaving space is formed between the dividing sleeve 5 and the material tray 1, and the discharging barrel 6 is communicated with the pre-leaving space. The driving motor 4 is fixedly connected to the closed side of the material tray 1, and the output shaft of the driving motor 4 passes through the material tray 1 and is coaxially connected to the turntable 2. The telescopic end of the cylinder 12 is fixedly connected with a piston rod 13, and the end of the piston rod 13 is fixedly connected to an electromagnet block 14 in contact with the bottom surface of the material tray 1, and the electromagnet block 14 moves back and forth in the length direction of the pre-leaving space.

[0034] The discharge port of the horizontal feeding assembly is connected to the machine tool assembly. The horizontal feeding assembly guides the bearing ring to move horizontally into the machine tool assembly. The horizontal feeding assembly includes a plurality of arc rails 7, a plurality of straight rails 8 fixedly connected thereto, a plurality of groups of U-shaped connecting plates 9, a conveyor belt 10 and a conveyor belt 2 11, two connecting frames 15 fixedly connected to one end of the plurality of straight rails 8 away from the arc rails 7, and a limiting top plate 16 horizontally fixedly connected between the connecting frames 15. A track space 1 is formed between the plurality of arc rails 7, and a plurality of A track space 2 is formed between the straight rails 8, the track space 1 is connected to the track space 2, and the bottom surface of the track space 2 is open, the groove width at the bottom surface of the track space 2 is smaller than the outer diameter of the bearing ring, the connecting plate 9 is fixedly connected to the outer rings of the plurality of arc rails 7 or the plurality of straight rails 8, the conveyor belt 10 and the conveyor belt 2 11 are arranged below the track space 2, and are located in the bottom surface of the track space 2. The widths of the conveyor belt 10 and the conveyor belt 2 11 are smaller than or equal to the groove width at the bottom surface of the track space 2;

[0035] The machine tool assembly includes a base 17, a casing 24 fixedly connected to the top surface thereof, an electric chuck 25 rotatably connected to the end surface of the casing 24, a sliding seat 21 displaceably arranged on the top surface of the base 17, a workbench 22 fixedly connected to the top surface of the sliding seat 21 through a connecting frame, and a tool holder 23 fixedly connected to the top surface of the workbench 22. A motor is fixedly connected in the casing 24, and the output shaft of the motor passes through the casing 24. The electric chuck 25 is coaxially fixedly connected to the output shaft of the motor. A permanent magnet block is fixedly connected between the sliding seat 21 and the workbench 22. A servo motor 20, a slide rail 18, and a screw rod 19 coaxially connected to the output shaft of the servo motor 20 are fixedly connected to the base 17. The sliding seat 21 is slidably connected to the slide rail 18, and the screw rod 19 is threadedly connected to the sliding seat 21.

[0036] The mechanical arm is arranged on one side of the machine tool assembly, and the mechanical arm clamps the flat bearing ring to the electric chuck 25 in the machine tool assembly.

[0037] When the utility model is actually working, it only needs to put a large number of bearing rings into the material tray 1, and drive the turntable 2 to rotate by rotating the driving motor 4. During the rotation, the bearing ring enters the embedded groove 3. If the bearing ring is not parallel to the turntable 2, it can also be deflected at a certain angle driven by the turntable 2, and then tend to be parallel so as to enter the turntable 2. Under the drive of the turntable 2, the bearing ring enters the pre-leaving space, and then the electromagnet block 14 is displaced to absorb the bearing ring through the material tray 1 to leave the pre-leaving space. After leaving, the electromagnet block 14 is powered off to avoid it from hindering the departure of the bearing ring, and then when it returns to its original position, it is powered on again to perform the next step. The bearing ring is in the track space one and the track space two. Slide, and when the bearing ring enters the track space 2, in order to avoid the loss of its kinetic energy, the conveyor belt 10 and the conveyor belt 2 11 further provide power for its displacement, so that the bearing ring slides smoothly onto the workbench 22, and stops its displacement under the adsorption of the permanent magnet block to prevent it from falling. Then, the bearing ring is clamped by the mechanical arm and installed on the electric chuck 25. The bearing ring is driven to rotate by the rotation of the motor, and the servo motor 20 drives the sliding seat 21 and the workbench 22 through the screw rod 19, and the tool seat 23 thereon is displaced to cut the inner and outer rings of the bearing ring. In this process, the bearing ring is mainly in contact with the outside world with its end face, so that its inner and outer rings are not easily damaged by collision with other structures, thereby ensuring its quality.

[0038] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A CNC machine tool for automatic loading and unloading of bearing rings, characterized in that: It includes a material coding component, a flat feeding component, a machine tool component, and a mechanical arm; The material coding component is connected to the feed port of the horizontal feeding component, and the material coding component guides the bearing ring to leave in a horizontal manner; The discharge port of the horizontal feeding assembly is connected to the machine tool assembly, and the horizontal feeding assembly guides the bearing ring to move horizontally into the machine tool assembly; The mechanical arm is arranged on one side of the machine tool assembly, and the mechanical arm clamps the flat bearing ring to the electric chuck (25) in the machine tool assembly.

2. The CNC machine tool for automatic loading and unloading of bearing rings according to claim 1 is characterized in that: The material encoding assembly comprises a material tray (1) with an open top surface and tilted, a turntable (2) rotatably connected to the material tray (1), a dividing sleeve (5) fixedly connected to the inner peripheral wall of the material tray (1) and arranged in contact with the top surface of the turntable (2), and a discharge barrel (6), wherein the cross section of the material tray (1) is also circular, the outer ring of the turntable (2) is recessed inward to form a plurality of embedded grooves (3) for accommodating a single bearing ring, a pre-separation space is formed between the dividing sleeve (5) and the material tray (1), and the discharge barrel (6) is connected to the pre-separation space.

3. The CNC machine tool for automatic loading and unloading of bearing rings according to claim 2 is characterized in that: The coding assembly further comprises a driving motor (4), wherein the driving motor (4) is fixedly connected to a closed side of the material tray (1), and an output shaft of the driving motor (4) passes through the material tray (1) and is coaxially connected to the rotating disk (2).

4. The CNC machine tool for automatic loading and unloading of bearing rings according to claim 2 is characterized in that: The coding assembly further comprises a cylinder (12) fixedly connected to the bottom surface of the material tray (1), the telescopic end of the cylinder (12) being fixedly connected to a piston rod (13), the end of the piston rod (13) being fixedly connected to an electromagnet block (14) abutting against the bottom surface of the material tray (1), the electromagnet block (14) being reciprocally movable in the length direction of the pre-leaved space.

5. The CNC machine tool for automatic loading and unloading of bearing rings according to claim 1 is characterized in that: The horizontal feeding assembly comprises a plurality of arc rails (7) and a plurality of straight rails (8) fixedly connected thereto, a track space 1 is formed between the plurality of arc rails (7), a track space 2 is formed between the plurality of straight rails (8), the track space 1 is connected to the track space 2, and the bottom surface of the track space 2 is open, and the groove width at the bottom surface of the track space 2 is smaller than the outer diameter of the bearing ring.

6. The CNC machine tool for automatic loading and unloading of bearing rings according to claim 5, characterized in that: The horizontal feeding assembly also includes a plurality of groups of U-shaped connecting plates (9), wherein the connecting plates (9) are fixedly connected to the outer rings of a plurality of arc rails (7) or a plurality of straight rails (8).

7. The CNC machine tool for automatic loading and unloading of bearing rings according to claim 6, characterized in that: The horizontal feeding assembly also includes a conveyor belt 1 (10) and a conveyor belt 2 (11), wherein the conveyor belt 1 (10) and the conveyor belt 2 (11) are arranged below the track space 2 and are located in the bottom opening of the track space 2, and the bandwidth of the conveyor belt 1 (10) and the conveyor belt 2 (11) is less than or equal to the groove width of the bottom opening of the track space 2.

8. The CNC machine tool for automatic loading and unloading of bearing rings according to claim 7, characterized in that: The horizontal feeding assembly also includes two connecting frames (15) fixedly connected to one end of the plurality of straight rails (8) away from the arc rail (7), and a limiting top plate (16) horizontally fixedly connected between the connecting frames (15).

9. The CNC machine tool for automatic loading and unloading of bearing rings according to claim 8, characterized in that: The machine tool assembly comprises a base (17), a casing (24) fixedly connected to the top surface thereof, an electric chuck (25) rotatably connected to the end surface of the casing (24), a sliding seat (21) displaceably arranged on the top surface of the base (17), a workbench (22) fixedly connected to the top surface of the sliding seat (21) via a connecting frame, and a tool holder (23) fixedly connected to the top surface of the workbench (22); a motor is fixedly connected inside the casing (24), an output shaft of the motor passes through the casing (24), the electric chuck (25) is coaxially fixedly connected to the output shaft of the motor, and a permanent magnet block is fixedly connected between the sliding seat (21) and the workbench (22).

10. The CNC machine tool for automatic loading and unloading of bearing rings according to claim 9, characterized in that: The base (17) is fixedly connected with a servo motor (20), a slide rail (18), and a screw rod (19) coaxially connected to the output shaft of the servo motor (20); the sliding seat (21) is slidably connected to the slide rail (18), and the screw rod (19) is threadedly connected to the sliding seat (21).

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