Bearing cylindrical rolling body cutting device

Abstract

The utility model discloses a cutting device for a cylindrical rolling body of a bearing, which relates to the technical field of bar cutting devices and comprises a platform, a first fixing frame fixedly arranged on the platform, a clamping pipe rotatably arranged in the first fixing frame, a guide rod fixedly arranged on the platform, a sliding block arranged on the guide rod and capable of moving up and down, and a saw blade mounted on the sliding block. An installation block is fixedly arranged on the first fixing frame, a large gear and a small gear are installed in the installation block through a shaft, the large gear and the small gear are coaxially linked, a gear ring is fixedly arranged on the outer side of the clamping pipe and meshed with the large gear, a rack is fixedly installed on the sliding block and meshed with the small gear, and the small gear is meshed with the rack. The sliding block moves downwards to enable the saw blade to be close to the bar, meanwhile, the rack on the sliding block is matched with the gear set to enable the bar in the clamping pipe to rotate, ring cutting can be achieved through rotation of the bar, burrs or notches are prevented from being generated at the edge when the bar is cut to the tail end, and cutting quality is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of bar cutting devices, in particular to a cutting device for cylindrical rolling elements of bearings. Background Art

[0002] A bearing is an important component in contemporary mechanical equipment. Its main function is to support the rotating body of the machine, reduce the friction coefficient during its movement, and ensure its rotational accuracy. The rolling element is the core component in a rolling bearing. Due to its existence, there is rolling friction between the relatively moving surfaces. The types of rolling elements include balls, cylindrical rollers, tapered rollers, needle rollers, etc.;

[0003] When producing cylindrical rolling elements, the bar needs to be segmented and cut first. The saw blade of a traditional cutting machine moves along the radial direction of the bar. When cutting near the end, the remaining connection point is at the edge of the bar. When the connection point is broken, burrs or notches are likely to be generated at the edge of the bar, affecting the cutting quality. Content of the Utility Model

[0004] Aiming at the deficiencies of the prior art, the utility model provides a cutting device for cylindrical rolling elements of bearings. By rotating the bar during cutting to achieve circumferential cutting, the technical problem that burrs or notches are likely to be generated at the edge of the bar when cutting to the end is solved.

[0005] To achieve the above objectives, the utility model is realized through the following technical solutions: A cutting device for cylindrical rolling elements of bearings, including a platform, a first fixed frame is fixedly arranged on the platform, a clamping tube is rotatably arranged in the first fixed frame, a guide rod is fixedly arranged on the platform, a slider capable of moving up and down is arranged on the guide rod, a saw blade is installed on the slider, an installation block is fixedly arranged on the first fixed frame, a large gear and a small gear are installed in the installation block through a shaft, the large gear and the small gear are coaxially linked, a toothed ring is fixedly arranged on the outer side of the clamping tube, the toothed ring meshes with the large gear, a rack is fixedly installed on the slider, the rack meshes with the small gear, and a telescopic rod for driving the slider to move up and down is installed on the platform.

[0006] Preferably, the inner wall surface of the clamping tube is conical and a plurality of first T-shaped grooves are uniformly arranged along its circumferential direction. A clamping block is slidably connected in each first T-shaped groove. A plurality of connecting rods are fixedly arranged at one end of the clamping tube away from the toothed ring. A threaded tube one is slidably arranged on the plurality of connecting rods. A plurality of second T-shaped grooves are formed on the end surface of the threaded tube one. One end of the clamping block is slidably connected in the second T-shaped groove.

[0007] Preferably, a second threaded cylinder is rotatably connected to the outer side of the clamping tube. The first threaded cylinder is threadedly connected to the second threaded cylinder. A plurality of through holes are formed in the first threaded cylinder, and the first threaded cylinder is slidably mounted on a plurality of connecting rods through the plurality of through holes.

[0008] Preferably, a first groove is formed in the outer wall surface of the clamping tube, and the first groove is rotatably arranged in the first fixing bracket.

[0009] Preferably, one end of each of the plurality of connecting rods is fixedly connected with a fixing ring. A second groove is formed in the outer wall surface of the fixing ring. A second fixing bracket is fixedly arranged on the platform on one side of the first fixing bracket, and the second groove is rotatably arranged in the second fixing bracket.

[0010] Preferably, an avoidance opening is formed in the platform directly below the rack.

[0011] Preferably, a support frame is fixedly mounted on the platform.

[0012] Preferably, a motor for driving the saw blade to rotate is installed on the slider. Beneficial effects

[0013] The utility model provides a cutting device for bearing cylindrical rolling elements, which has the following beneficial effects: The device moves the slider downward to make the saw blade approach the bar stock. At the same time, the rack on the slider cooperates with the gear set to rotate the bar stock in the clamping tube. By rotating the bar stock, circumferential cutting can be realized, so that the connection part of the bar stock at the end is far from the edge of the bar stock, avoiding burrs or notches at the edge when the bar stock is cut to the end, and improving the cutting quality. Description of the drawings

[0014] Figure 1 is a three-dimensional view of the utility model Figure I ;

[0015] Figure 2 is a three-dimensional view of the utility model Figure II ;

[0016] Figure 3 is an exploded view of the clamping tube;

[0017] Figure 4 is a sectional view of the clamping tube.

[0018] In the figure: 1. Platform; 2. First fixing frame; 3. Clamping pipe; 4. Guide rod; 5. Slide block; 6. Saw blade; 7. Installation block; 8. Large gear; 9. Small gear; 10. Tooth ring; 11. Rack; 12. Telescopic rod; 13. Avoidance opening; 14. Motor; 15. Support frame; 16. First T-shaped groove; 17. Clamping block; 18. Connecting rod; 19. Fixed ring; 20. First threaded cylinder; 21. Through hole; 22. Second T-shaped groove; 23. First groove; 24. Second groove; 25. Second threaded cylinder; 26. Second fixing frame. Detailed implementation manner

[0019] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention.

[0020] Please refer to Figures 1 - 4 , the present invention provides a technical solution: a cutting device for cylindrical rolling elements of bearings, including a platform 1, a first fixing frame 2 is fixedly arranged on the platform 1, a clamping pipe 3 for clamping a bar is rotatably arranged in the first fixing frame 2, a guide rod 4 is fixedly arranged on the platform 1, a slide block 5 capable of moving up and down is arranged on the guide rod 4, a saw blade 6 is installed on the slide block 5, and the bar clamped on the clamping pipe 3 is cut by driving the slide block 5 to move downward by the saw blade 6. An installation block 7 is fixedly arranged on the first fixing frame 2, a large gear 8 and a small gear 9 are installed in the installation block 7 through a shaft, the large gear 8 and the small gear 9 are coaxially linked, a tooth ring 10 is fixedly arranged on the outer side of the clamping pipe 3, the tooth ring 10 meshes with the large gear 8, a rack 11 is fixedly installed on the slide block 5, the rack 11 meshes with the small gear 9, and a telescopic rod 12 for driving the slide block 5 to move up and down is installed on the platform 1.

[0021] Specifically, the inner wall surface of the clamping pipe 3 is conical and a plurality of first T-shaped grooves 16 are uniformly arranged along its circumferential direction. A clamping block 17 is slidably connected in each first T-shaped groove 16. A plurality of connecting rods 18 are fixedly arranged at one end of the clamping pipe 3 away from the tooth ring 10. A first threaded cylinder 20 is slidably arranged on the plurality of connecting rods 18. A plurality of second T-shaped grooves 22 are opened on the end surface of the first threaded cylinder 20. One end of the clamping block 17 is slidably connected in the second T-shaped groove 22. By axially moving the first threaded cylinder 20, the clamping block 17 can be pushed to move in the first T-shaped groove 16. Since the first T-shaped groove 16 is inclined with respect to the axial direction of the clamping pipe 3, the clamping block 17 can move in the radial direction of the clamping pipe 3. When the clamping block 17 moves in the first T-shaped groove 16, it can also move in the second T-shaped groove 22.

[0022] Further, a second threaded cylinder 25 is rotatably connected to the outer side of the clamping tube 3, and the first threaded cylinder 20 is threadedly connected to the second threaded cylinder 25. When the second threaded cylinder 25 rotates, the first threaded cylinder 20 can move on the connecting rod 18 through threaded connection. A plurality of through holes 21 are provided in the first threaded cylinder 20, and the first threaded cylinder 20 is slidably mounted on a plurality of connecting rods 18 through the plurality of through holes 21, restricting the movement trajectory of the first threaded cylinder 20 to prevent it from rotating.

[0023] Further, a first groove 23 is provided on the outer wall surface of the clamping tube 3, and the first groove 23 is rotatably arranged in the first fixing frame 2. One end of a plurality of connecting rods 18 is fixedly connected with a fixing ring 19, and a second groove 24 is provided on the outer wall surface of the fixing ring 19. A second fixing frame 26 is fixedly arranged on the platform 1 on one side of the first fixing frame 2, and the second groove 24 is rotatably arranged in the second fixing frame 26. The two ends of the clamping tube 3 can be supported by the first fixing frame 2 and the second fixing frame 26 respectively.

[0024] Further, an avoidance opening 13 is provided on the platform 1 directly below the rack 11, and the wall surface rack 11 contacts the platform 1 when descending.

[0025] Further, a support frame 15 is fixedly installed on the platform 1 for supporting the end of the bar stock far from the clamping tube 3.

[0026] Further, a motor 14 for driving the saw blade 6 to rotate is installed on the slider 5.

[0027] The working principle and usage process of the present utility model: When in use, turn the second threaded cylinder 25 to move the first threaded cylinder 20 away from the clamping tube 3. At this time, a plurality of clamping blocks 17 expand outwards. Insert the bar stock into the clamping tube 3, and then turn the second threaded cylinder 25 in the reverse direction. At this time, a plurality of clamping blocks 17 contract inwards, and the bar stock is clamped by the clamping blocks 17. Start the motor 14 and the telescopic rod 12. The saw blade rotates through the motor 14, and the slider 5 is pulled down through the telescopic rod 12. When the slider 5 moves, the pinion 9 can be driven to rotate through the rack 11. While the pinion 9 rotates, the large gear 8 rotates, and the clamping tube 3 is driven to rotate through the large gear 8, so that the bar stock in the clamping tube 3 rotates. The saw blade 6 is brought closer to the bar stock by moving the slider 5 downwards. Circumferential cutting can be achieved through the rotation of the bar stock, so that the connection part at the end of the bar stock is far from the edge of the bar stock, avoiding burrs or notches at the edge when the bar stock is cut to the end.

[0028] Although the embodiments of the present utility model have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. A cutting device for cylindrical rolling elements of a bearing, characterized in that, It includes a platform (1), on which a first fixing frame (2) is fixedly arranged. A clamping pipe (3) is rotatably arranged in the first fixing frame (2). A guide rod (4) is fixedly arranged on the platform (1). A slider (5) capable of moving up and down is arranged on the guide rod (4). A saw blade (6) is installed on the slider (5). An installation block (7) is fixedly arranged on the first fixing frame (2). A large gear (8) and a small gear (9) are installed in the installation block (7) through a shaft. The large gear (8) and the small gear (9) are coaxially linked. A toothed ring (10) is fixedly arranged on the outer side of the clamping pipe (3). The toothed ring (10) meshes with the large gear (8). A rack (11) is fixedly installed on the slider (5). The rack (11) meshes with the small gear (9). An expansion rod (12) for driving the slider (5) to move up and down is installed on the platform (1).

2. The cutting device for cylindrical rolling elements of a bearing according to claim 1, characterized in that, The inner wall surface of the clamping pipe (3) is conical and a plurality of first T-shaped grooves (16) are uniformly arranged along its circumferential direction. A clamping block (17) is slidably connected in each first T-shaped groove (16). A plurality of connecting rods (18) are fixedly arranged at one end of the clamping pipe (3) away from the toothed ring (10). A first threaded cylinder (20) is slidably arranged on the plurality of connecting rods (18). A plurality of second T-shaped grooves (22) are formed on the end surface of the first threaded cylinder (20). One end of the clamping block (17) is slidably connected in the second T-shaped groove (22).

3. A cutting device for cylindrical rolling elements of a bearing according to claim 2, characterized in that, A second threaded cylinder (25) is rotatably connected to the outer side of the clamping pipe (3). The first threaded cylinder (20) is threadedly connected to the second threaded cylinder (25). A plurality of through holes (21) are formed in the first threaded cylinder (20). The first threaded cylinder (20) is slidably installed on the plurality of connecting rods (18) through the plurality of through holes (21).

4. A cutting device for cylindrical rolling elements of a bearing according to claim 2, characterized in that, A first groove (23) is formed on the outer wall surface of the clamping pipe (3). The first groove (23) is rotatably arranged in the first fixing frame (2).

5. A cutting device for cylindrical rolling elements of a bearing according to claim 2, characterized in that, One ends of the plurality of connecting rods (18) are fixedly connected with a fixing ring (19). A second groove (24) is formed on the outer wall surface of the fixing ring (19). A second fixing frame (26) is fixedly arranged on the platform (1) on one side of the first fixing frame (2). The second groove (24) is rotatably arranged in the second fixing frame (26).

6. A cutting device for cylindrical rolling elements of a bearing according to claim 1, characterized in that, An avoidance opening (13) is formed on the platform (1) directly below the rack (11).

7. A cutting device for cylindrical rolling elements of a bearing according to claim 1, characterized in that, A support frame (15) is fixedly installed on the platform (1).

8. A cylindrical rolling element cutting device for bearings according to claim 1, characterized in that, A motor (14) for driving the saw blade (6) to rotate is installed on the slider (5).

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