Bearing roughing mechanism

Abstract

This invention discloses a bearing rough grinding mechanism, including an annular grinding belt, a rotating ring, and a limiting protrusion. The workpiece is located within the curved limiting gap and rotates with the rotating ring and the limiting protrusion; the outer wall of the workpiece is ground; a grinding head, planetary gears, and a sun gear are included. The grinding head is rotatably connected to the rotating ring and revolves with the rotating ring. The planetary gears mesh with the sun gear, and the planetary gears drive the grinding head to rotate simultaneously during their revolution. The grinding head grinds the inner wall of the workpiece; an inner support ring and a rubber ring are included. The rubber ring is fixedly connected to the inner support ring and fits against the workpiece. The beneficial effects of this invention are that, through the setting of the grinding head and the annular grinding belt, the inner and outer rings of the workpiece can be ground simultaneously during workpiece operation, achieving synchronous grinding of the inner and outer rings; through the compression of the workpiece by the annular grinding belt, the contact point between the workpiece and the rubber ring does not slip relative to each other, allowing the workpiece to rotate stably while revolving.

Description

Technical Field

[0001] This invention relates to the field of bearing machining technology, and more specifically, to a bearing rough grinding mechanism. Background Technology

[0002] Bearings require multiple machining processes, one of which is rough grinding of the bearing ring. Existing technologies, such as the document with application number CN201810852034.1, use a ring grinder to perform continuous, batch rough grinding of the outer ring of the bearing. While this completes the rough grinding process, it has the following drawbacks: 1. Due to structural limitations, it can only rough grind the outer ring of the workpiece, not the inner ring; 2. The friction between the open end and the workpiece is provided by the grinding groove, resulting in static friction and the workpiece not being able to rotate stably. High-quality grinding of the outer ring requires stable rotation of the workpiece. Summary of the Invention

[0003] To address the above deficiencies, this invention provides a bearing rough grinding mechanism to solve the aforementioned problems.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: The bearing rough grinding mechanism includes a base, a workpiece, a loading channel, and a unloading channel, and also includes: The ring-shaped grinding belt, rotating ring, and limiting protrusions are provided. Multiple limiting protrusions are provided and distributed on the rotating ring. There are curved limiting gaps between adjacent limiting protrusions. The workpiece is located in the curved limiting gaps and rotates with the rotating ring and limiting protrusions. The ring-shaped grinding belt covers the workpiece's movement path and grinds the outer wall of the workpiece. The grinding head, planetary gears, and sun gear are rotatably connected to the rotating ring and follow the rotating ring in its revolution. The grinding head is fixedly connected to the planetary gears, which mesh with the sun gears. The planetary gears drive the grinding head to rotate while revolving around the ring, and the grinding head grinds the inner wall of the workpiece. The inner support ring and the rubber ring are fixedly connected. The rubber ring fits against the workpiece. The friction between the rubber ring and the workpiece is greater than the friction between the annular grinding belt and the workpiece. The rubber ring and the annular grinding belt work together to apply pressure to the workpiece and stabilize the workpiece's rotation speed.

[0005] Furthermore, the dimension of the curved surface limiting gap on the side near the feeding channel is larger than the workpiece diameter, while the dimension on the other side of the curved surface limiting gap is smaller than the workpiece diameter. The limiting protrusion fits the workpiece, and a support roller is installed on the limiting protrusion.

[0006] Furthermore, an arc-shaped plate is installed on the base, and the arc-shaped plate is concentrically set with the rotating ring. Pulleys are installed at both ends of the arc-shaped plate, and the two ends of the annular grinding belt are fitted onto the pulleys. The annular grinding belt is divided into an inner side and an outer side. A guide wheel is provided at the inner support ring of the outer side. The guide wheel maintains the annular grinding belt in an arc shape. A drive motor is installed at both ends of the arc-shaped plate, and the drive motor drives the pulleys to rotate.

[0007] Furthermore, a slide rail is installed on the base, a slider is provided on the slide rail, a tension wheel is provided on the slider, the annular grinding belt passes around the tension wheel, and a tension spring is installed between the slider and the base. The elastic force of the tension spring keeps the annular grinding belt in a taut state.

[0008] Furthermore, the rotating ring has a circular hole, and a connecting rod is provided on the lower surface of the rotating ring. One end of the connecting rod is provided with a bearing. The grinding head passes through the circular hole, and the lower end of the grinding head is fixedly connected to the inner ring of the bearing. The planetary gear is installed at the lower end of the grinding head, and the sun gear is installed on the outer surface of the inner support ring. An outer support ring is installed on the base, and a bearing is installed at the upper end of the outer support ring. The rotating ring is supported by the bearing and rotates. A gear ring is installed on the rotating ring, and a drive motor that meshes with the gear ring is installed on the outer support ring.

[0009] Furthermore, the longitudinal section of the arc plate is L-shaped, the rotating ring is located below the arc plate, and the annular grinding belt, grinding head, workpiece and limiting protrusion are on the same horizontal plane.

[0010] Furthermore, the curvature of the curved plate is greater than 180 degrees and less than 300 degrees.

[0011] Furthermore, the transmission ratio between the sun gear and the planetary gear is greater than 1:55; the diameter of the grinding head is smaller than the inner ring of the workpiece but larger than the diameter of the planetary gear.

[0012] The beneficial effects of the present invention are: by setting the grinding head and the annular grinding belt, the inner and outer rings of the workpiece can be ground when the workpiece is running, so as to achieve synchronous grinding of the inner and outer rings. By squeezing the workpiece with the annular grinding belt, the workpiece and the rubber ring do not slide relative to each other at the contact point. At this time, the workpiece can rotate stably on its own axis while revolving around the sun. By using a tension spring, the slider can be pulled to slide on the slide rail, and the elastic force of the tension spring keeps the annular grinding belt taut. Attached Figure Description

[0013] Figure 1 This is a top view of the bearing rough grinding mechanism described in this invention; Figure 2 This is a schematic diagram of the longitudinal section of the curved plate; Figure 3 yes Figure 1 A schematic diagram of B in the middle; Figure 4 yes Figure 1 A diagram of AA in the middle; Figure 5 This is an enlarged schematic diagram of the slide rail; In the diagram: 1. Base; 2. Workpiece; 3. Loading channel; 4. Unloading channel; 5. Annular grinding belt; 6. Rotating ring; 7. Limiting protrusion; 8. Curved surface limiting gap; 9. Grinding head; 10. Planetary gear; 11. Sun gear; 12. Inner support ring; 13. Rubber ring; 21. Support roller; 31. Arc plate; 32. Pulley; 33. Guide wheel; 34. Drive motor one; 41. Slide rail; 42. Slider; 43. Tensioning wheel; 44. Tension spring; 51. Circular hole; 52. Connecting rod; 53. Bearing one; 54. Outer support ring; 55. Bearing two; 56. Gear ring; 57. Drive motor two; 501. Inner side; 502. Outer side. Detailed Implementation

[0014] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0015] This application provides a bearing rough grinding mechanism; please refer to [reference needed]. Figures 1-5 It includes a base 1, a workpiece 2, a loading channel 3, and a discharging channel 4, and also includes: The annular grinding belt 5, the rotating ring 6, and the limiting protrusions 7 are provided. Multiple limiting protrusions 7 are provided and distributed on the rotating ring 6. A curved limiting gap 8 is provided between adjacent limiting protrusions 7. The workpiece 2 is located in the curved limiting gap 8 and rotates with the rotating ring 6 and the limiting protrusions 7. The annular grinding belt 5 covers the moving path of the workpiece 2 and grinds the outer wall of the workpiece 2. Grinding head 9, planetary gear 10 and sun gear 11. Grinding head 9 is rotatably connected to rotating ring 6 and revolves with rotating ring 6. Grinding head 9 is fixedly connected to planetary gear 10. Planetary gear 10 meshes with sun gear 11. Planetary gear 10 drives grinding head 9 to rotate while revolving. Grinding head 9 grinds the inner wall of workpiece 2. The inner support ring 12 and the rubber ring 13 are fixedly connected to the inner support ring 12 and the rubber ring 13 is in contact with the workpiece 2. The friction between the rubber ring 13 and the workpiece 2 is greater than the friction between the annular grinding belt 5 and the workpiece 2. The rubber ring 13 and the annular grinding belt 5 work together to apply pressure to the workpiece 2 and stabilize the rotation speed of the workpiece 2.

[0016] In practical applications, workpiece 2 can be fed into the loading channel 3 in a specified state through an external screening machine, and then moved from the loading channel 3 into the curved limiting gap 8 to achieve loading; during unloading, an external magnetic suction system can be used to pick up workpiece 2 to achieve unloading. During operation, the ring grinding belt 5 is controlled to rotate, the rotating ring 6 and the limiting protrusion 7 rotate clockwise. When the curved surface limiting gap 8 moves to the position of the feeding channel 3, the workpiece 2 can move into the curved surface limiting gap 8 and follow the rotation of the rotating ring 6 and the limiting protrusion 7. By pressing the workpiece 2 with the annular grinding belt 5, the workpiece 2 does not slide relative to the rubber ring 13 at the contact point. At this time, the workpiece 2 can rotate stably while revolving around the sun. When workpiece 2 moves, the annular grinding belt 5 can grind the outer surface of workpiece 2; When workpiece 2 moves, the planetary gear 10 and the sun gear 11 are used to drive the planetary gear 10 to rotate, and the planetary gear 10 drives the grinding head 9 to rotate, and grinds the inner wall of the specified workpiece 2. Due to the setting of the grinding head 9, the workpiece 2 cannot be moved horizontally for unloading; when the workpiece moves clockwise to the unloading channel 4, the workpiece 2 can be unloaded through an external mechanism.

[0017] Reference Figure 1 , Figure 2 , Figure 3 and Figure 4 The dimension of the curved limiting gap 8 on the side near the feeding channel 3 is larger than the diameter of the workpiece 2, and the dimension of the other side of the curved limiting gap 8 is smaller than the diameter of the workpiece 2. The limiting protrusion 7 fits against the workpiece 2, and a support roller 21 is installed on the limiting protrusion 7.

[0018] In practical applications, the curved surface limiting gap 8 is used for the feeding operation of workpiece 2 on one side near the feeding channel 3, so it is large in size; the other side is used to fix the position of workpiece 2 and prevent workpiece 2 from moving uncontrollably, so it is small in size; by setting the support roller 21, when workpiece 2 rotates, the friction between workpiece 2 and curved surface limiting gap 8 is reduced.

[0019] Reference Figure 1 , Figure 2 , Figure 3 and Figure 4 An arc-shaped plate 31 is installed on the base 1. The arc-shaped plate 31 is concentrically set with the rotating ring 6. Pulleys 32 are installed at both ends of the arc-shaped plate 31. The two ends of the annular grinding belt 5 are fitted onto the pulleys 32. The annular grinding belt 5 is divided into an inner side 501 and an outer side 502. A guide wheel 33 is provided at the inner support ring 12 of the outer side 502. The guide wheel 33 maintains the annular grinding belt 5 in an arc shape. A drive motor 34 is installed at both ends of the arc-shaped plate 31. The drive motor 34 drives the pulleys 32 to rotate.

[0020] In practical applications, when the drive motor 34 rotates, it drives the pulley 32 to rotate, and the pulley 32 drives the annular grinding belt 5 to rotate. By setting the guide wheel 33, the outer side 502 of the annular grinding belt 5 can be kept in an arc shape. By setting multiple workpieces 2, the inner side 501 of the annular grinding belt 5 can also be kept in an arc shape.

[0021] Reference Figure 1 , Figure 2 , Figure 3 and Figure 4 A slide rail 41 is installed on the base 1, a slider 42 is provided on the slide rail 41, a tension wheel 43 is provided on the slider 42, the annular grinding belt 5 passes around the tension wheel 43, and a tension spring 44 is installed between the slider 42 and the base 1. The elasticity of the tension spring 44 keeps the annular grinding belt 5 in a taut state.

[0022] In practical applications, the tension spring 44 can be used to pull the slider 42 to slide on the slide rail 41, and the elastic force of the tension spring 44 can be used to keep the annular grinding belt 5 taut.

[0023] Reference Figure 1 , Figure 2 , Figure 3 and Figure 4 A circular hole 51 is opened on the rotating ring 6. A connecting rod 52 is provided on the lower surface of the rotating ring 6. A bearing 53 is provided at one end of the connecting rod 52. The grinding head 9 passes through the circular hole 51. The lower end of the grinding head 9 is fixedly connected to the inner ring of the bearing 53. The planetary gear 10 is installed at the lower end of the grinding head 9. The sun gear 11 is installed on the outer surface of the inner support ring 12. An outer support ring 54 is installed on the base 1. A bearing 55 is installed at the upper end of the outer support ring 54. The rotating ring 6 is supported to rotate by the bearing 55. A gear ring 56 is installed on the rotating ring 6. A drive motor 57 that meshes with the gear ring 56 is installed on the outer support ring 54.

[0024] In practical applications, the circular hole 51 facilitates the passage of the grinding head 9 through the rotating ring 6; the outer support ring 54 provides support, and the bearing 55 on the outer support ring 54 allows the rotating ring 6 to rotate stably. The rotation of the drive motor 57 drives the gear ring 56 and the rotating ring 6 to rotate. The rotating ring 6 drives the connecting rod 52, the grinding head 9, and the planetary gear 10 to revolve. While the grinding head 9 and the planetary gear 10 revolve, the planetary gear 10 meshes with the sun gear 11. At this time, the planetary gear 10 drives the grinding head 9 to revolve while rotating on its own axis, thus achieving the purpose of grinding the inner wall of the workpiece 2.

[0025] Reference Figure 1 , Figure 3 , Figure 4 and Figure 5The longitudinal section of the arc plate 31 is L-shaped, the rotating ring 6 is located below the arc plate 31, and the annular grinding belt 5, grinding head 9, workpiece 2 and limiting protrusion 7 are on the same horizontal plane.

[0026] In practical applications, the arc plate 31 has an L-shaped longitudinal section, which can improve its structural strength; the annular grinding belt 5, grinding head 9, workpiece 2 and limiting protrusion 7 are on the same horizontal plane, which is beneficial for the loading, unloading and grinding operations of workpiece 2.

[0027] Reference Figure 1 , Figure 2 , Figure 3 and Figure 4 The arc of the curved plate 31 is greater than 180 degrees and less than 300 degrees.

[0028] In practical applications, by setting the arc of the arc plate 31 to be greater than 180 degrees and less than 300 degrees, it is possible to ensure that the workpiece 2 has sufficient time for grinding, while facilitating the setting of the loading channel 3 and the unloading channel 4.

[0029] Reference Figure 1 , Figure 2 , Figure 3 and Figure 4 The transmission ratio between the sun gear 11 and the planetary gear 10 is greater than 1:55; the diameter of the grinding head 9 is smaller than the inner ring of the workpiece 2, but larger than the diameter of the planetary gear 10.

[0030] In practical applications, controlling the transmission ratio between the sun gear 11 and the planetary gear 10 can enable the grinding head 9 to have a higher rotation speed, thereby improving the grinding quality of the inner ring of the workpiece 2. By setting the diameter of the grinding head 9 to be larger than that of the planetary gear 10, the edge of the grinding head 9 has a higher linear speed, which further improves the grinding quality.

Claims

1. A bearing rough grinding mechanism, comprising a base (1), a workpiece (2), a feeding channel (3), and a discharging channel (4), characterized in that, Also includes: The ring-shaped grinding belt (5), the rotating ring (6), and the limiting protrusions (7) are provided. Multiple limiting protrusions (7) are provided and distributed on the rotating ring (6). A curved limiting gap (8) is provided between adjacent limiting protrusions (7). The workpiece (2) is located in the curved limiting gap (8) and rotates with the rotating ring (6) and the limiting protrusions (7). The ring-shaped grinding belt (5) covers the moving path of the workpiece (2) and grinds the outer wall of the workpiece (2). Grinding head (9), planetary gear (10) and sun gear (11). Grinding head (9) is rotatably connected to rotating ring (6) and revolves with rotating ring (6). Grinding head (9) is fixedly connected to planetary gear (10). Planetary gear (10) meshes with sun gear (11). Planetary gear (10) drives grinding head (9) to rotate while revolving. Grinding head (9) grinds the inner wall of workpiece (2). The inner support ring (12) and the rubber ring (13) are fixedly connected. The rubber ring (13) is in contact with the workpiece (2). The friction between the rubber ring (13) and the workpiece (2) is greater than the friction between the annular grinding belt (5) and the workpiece (2). The rubber ring (13) and the annular grinding belt (5) work together to apply pressure to the workpiece (2) and stabilize the rotation speed of the workpiece (2).

2. The bearing rough grinding mechanism according to claim 1, characterized in that, The dimension of the curved surface limiting gap (8) on the side near the feeding channel (3) is larger than the diameter of the workpiece (2), and the dimension of the other side of the curved surface limiting gap (8) is smaller than the diameter of the workpiece (2). The limiting protrusion (7) fits the workpiece (2), and a support roller (21) is installed on the limiting protrusion (7).

3. The bearing rough grinding mechanism according to claim 2, characterized in that, An arc plate (31) is installed on the base (1). The arc plate (31) and the rotating ring (6) are concentrically arranged. Pulleys (32) are installed at both ends of the arc plate (31). The two ends of the annular grinding belt (5) are fitted onto the pulleys (32). The annular grinding belt (5) is divided into an inner side (501) and an outer side (502). A guide wheel (33) is provided at the inner support ring (12) of the outer side (502). The guide wheel (33) maintains the annular grinding belt (5) in an arc shape. A drive motor (34) is installed at both ends of the arc plate (31). The drive motor (34) drives the pulleys (32) to rotate.

4. The bearing rough grinding mechanism according to claim 3, characterized in that, A slide rail (41) is installed on the base (1), a slider (42) is provided on the slide rail (41), a tension wheel (43) is provided on the slider (42), the annular grinding belt (5) passes around the tension wheel (43), a tension spring (44) is installed between the slider (42) and the base (1), and the elastic force of the tension spring (44) keeps the annular grinding belt (5) in a taut state.

5. The bearing rough grinding mechanism according to claim 3, characterized in that, A circular hole (51) is opened on the rotating ring (6). A connecting rod (52) is provided on the lower surface of the rotating ring (6). A bearing (53) is provided at one end of the connecting rod (52). The grinding head (9) passes through the circular hole (51). The lower end of the grinding head (9) is fixedly connected to the inner ring of the bearing (53). The planetary gear (10) is installed at the lower end of the grinding head (9). The sun gear (11) is installed on the outer surface of the inner support ring (12). An outer support ring (54) is installed on the base (1). A bearing (55) is installed at the upper end of the outer support ring (54). The rotating ring (6) is supported to rotate by the bearing (55). A gear ring (56) is installed on the rotating ring (6). A drive motor (57) that meshes with the gear ring (56) is installed on the outer support ring (54).

6. The bearing rough grinding mechanism according to claim 5, characterized in that, The longitudinal section of the arc plate (31) is L-shaped, the rotating ring (6) is located below the arc plate (31), and the annular grinding belt (5), grinding head (9), workpiece (2) and limiting protrusion (7) are on the same horizontal plane.

7. The bearing rough grinding mechanism according to claim 6, characterized in that, The arc of the curved plate (31) is greater than 180 degrees and less than 300 degrees.

8. The bearing rough grinding mechanism according to claim 1, characterized in that, The transmission ratio between the sun gear (11) and the planetary gear (10) is greater than 1:55; the diameter of the grinding head (9) is smaller than the inner ring of the workpiece (2) and larger than the diameter of the planetary gear (10).

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