Grinding device for inner walls of inner and outer rings of bearing

Abstract

The utility model discloses a polishing device for inner walls of inner and outer rings of a bearing. The polishing device comprises a workbench, a clamping seat and a driving mechanism, and a lifting mechanism is mounted on a supporting frame; the driving mechanism comprises a driving box, an output shaft of the motor is connected with a first shaft sleeve, the lower portion of the first shaft sleeve is provided with a jumping mechanism, the jumping mechanism comprises a buckle cap, the buckle cap is provided with a plurality of symmetrically-arranged arc-shaped grooves, and a plurality of supporting wheels are installed in the driving box; the upper part of the buckle cap is fixedly connected with a first spline shaft; a polishing mechanism is arranged on the lower portion of the buckle cap. The inner rings or the outer rings of the multiple bearings are clamped in the clamping blocks, synchronous grinding of the inner rings or the outer rings of the multiple bearings is achieved, and the grinding efficiency of the inner rings and the outer rings of the bearings is improved; in addition, by arranging the jumping mechanism, the grinding mechanism jumps up and down while rotating, the abrasion uniformity of the grinding mechanism is guaranteed, and therefore the grinding consistency and stability of the inner walls of the inner rings and the outer rings of the bearings of different batches are guaranteed.

Description

Technical Field

[0001] This utility model belongs to the field of bearing manufacturing, and specifically relates to a grinding device for the inner and outer ring walls of a bearing. Background Technology

[0002] In the bearing manufacturing process, grinding the inner walls of the bearing's inner and outer rings is a crucial step in ensuring bearing performance and service life. As an indispensable key component in various mechanical equipment, the precision and smoothness of the inner walls of the bearing's inner and outer rings directly affect the bearing's operational stability, noise control, and long-term durability. However, traditional bearing inner ring grinding techniques have several limitations, severely restricting the improvement of production efficiency and grinding quality.

[0003] First, traditional grinding processes employ a single-piece grinding model, meaning that only one bearing inner or outer ring is ground at a time. This approach is particularly inefficient in large-scale production environments. The need for frequent replacement and precise positioning of individual bearing inner and outer rings not only increases the complexity of production operations and the intensity of manual labor but also reduces bearing manufacturing efficiency, failing to meet the demands of high-efficiency production.

[0004] Secondly, traditional grinding methods involve a fixed grinding roller height. Over time, this leads to wear at the contact points between the grinding roller and the inner and outer rings of the bearing. This not only reduces the lifespan of the grinding roller but can also result in uneven grinding. Especially when grinding bearings with different inner and outer ring specifications, differences in roller wear and contact pressure often lead to inconsistent grinding precision, severely impacting the bearing's manufacturing quality and performance stability. Utility Model Content

[0005] The purpose of this invention is to overcome the shortcomings of the existing technology and provide a grinding device for the inner and outer rings of bearings, so as to solve the problems of poor versatility of grinding rollers and uneven wear, realize multi-part grinding of the inner and outer rings of bearings, and improve the grinding efficiency of the inner and outer rings of bearings.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0007] A bearing inner and outer ring grinding device includes a worktable, a clamping base, and a drive mechanism. The upper part of the worktable is provided with a support frame, and a lifting mechanism is installed on the support frame. The clamping base includes a base, which is installed on the upper part of the worktable. The base has adjustment grooves on both sides and two clamping blocks symmetrically provided on the upper part of the base. One side of the clamping block has a V-shaped opening. The lower part of the base is rotatably connected to a double-ended stud. The lower end of the clamping block is provided with a threaded block, which passes through the adjustment groove and is threadedly connected to the double-ended stud. The bearing inner or outer ring is placed on the base and clamped by the clamping blocks.

[0008] The driving mechanism includes a driving box, with the upper end of the lifting mechanism connected to the bottom of the driving box. A motor is mounted on the upper part of the driving box, and a first bushing is connected to the output shaft of the motor. A jumping mechanism is provided at the lower part of the first bushing. The jumping mechanism includes a buckle with several symmetrically arranged arc-shaped grooves. Several support wheels are installed inside the driving box, and the support wheels are supported at the lower part of the arc-shaped grooves. A first spline shaft is fixedly connected to the upper part of the buckle, and the first spline shaft is intermittently fitted inside the first bushing. A first spring is provided outside the first spline shaft, with the lower end of the first spring abutting against the buckle and the upper end of the first spring abutting against a fixing plate on the first bushing. A grinding mechanism is provided at the lower part of the buckle.

[0009] Furthermore, the lifting mechanism is a hydraulic cylinder, a pneumatic cylinder, or an electric push rod.

[0010] Furthermore, the base is provided with several chip discharge grooves for discharging grinding debris.

[0011] Furthermore, a rubber pad is provided on the inner wall of the V-shaped opening of the clamping block.

[0012] Furthermore, the polishing mechanism includes a main rod, the upper end of which is fixedly connected to a buckle, and the lower end of which is fixedly connected to a fixed seat. A movable seat is also movably connected to the main rod. Several support rods are movably connected to the outer sides of both the fixed seat and the movable seat. One end of each support rod is pivotally connected to a sandpaper base, and the sandpaper adheres to the outer side of the sandpaper base. A baffle is provided on the main rod, and a second spring is sleeved on the outside of the main rod. The lower end of the second spring abuts against the movable seat, and the upper end of the second spring abuts against the baffle.

[0013] Furthermore, the baffle is threadedly connected to the main rod and is used to adjust the preload of the second spring.

[0014] Furthermore, the sandpaper base has a slot in the middle, the edge of the sandpaper is placed in the slot, and a U-shaped frame is detachably installed in the slot.

[0015] Furthermore, a drive pulley is fixedly connected to the first bushing, a second bushing is rotatably connected to one side of the drive box, and a driven pulley is fixedly connected to the second bushing. The drive pulley and the driven pulley are connected by a transmission belt. A first rotating shaft is rotatably connected to the worktable, a drive gear is fixedly connected to the upper end of the first rotating shaft, a second splined shaft is fixedly connected to the upper part of the drive gear, and the second splined shaft is intermittently inserted into the second bushing. A driven gear meshes with one side of the drive gear, and a second rotating shaft is fixedly connected to the lower part of the driven gear. The second rotating shaft is rotatably connected to the worktable, and the base is fixedly installed on the upper part of the driven gear. A surrounding plate is provided on the worktable, and the drive gear and the driven gear are disposed inside the surrounding plate.

[0016] Furthermore, the upper part of the worktable is provided with an arc-shaped guide rail, and the lower part of the driven gear is provided with several evenly arranged sliders, which are slidably mounted on the arc-shaped guide rail.

[0017] The beneficial effects of this utility model are:

[0018] 1) This utility model achieves simultaneous grinding of multiple bearing inner or outer rings by clamping multiple bearing inner or outer rings inside the clamping block, thereby improving the grinding efficiency of bearing inner and outer rings; in addition, by setting a jumping mechanism, the grinding mechanism jumps up and down while rotating, ensuring the uniformity of wear of the grinding mechanism, thereby ensuring the consistency and stability of grinding the inner walls of bearing inner and outer rings of different batches.

[0019] 2) The grinding mechanism adapts to the diameter of the inner and outer rings of the bearing, improving the flexibility and versatility of the grinding mechanism; and the baffle is threadedly connected to the main rod, which facilitates the adjustment of the preload of the second spring, thereby adjusting the force and precision of the grinding mechanism when grinding the inner and outer rings of the bearing.

[0020] 3) The sandpaper base has a slot in the middle, and the edge of the sandpaper is placed in the slot. A U-shaped frame is detachably installed in the slot to facilitate quick installation and replacement of the sandpaper.

[0021] 4) A drive pulley is set on the first bushing, a driven pulley is set on the second bushing, a drive gear is set at the lower end of the second bushing, and a driven gear is set on the worktable in the opposite direction of the grinding mechanism, which further improves the grinding efficiency of the inner or outer ring of the bearing.

[0022] 5) An arc-shaped guide rail is installed on the workbench to support the driven gear, which enhances the stability of the driven gear and the clamping seat above it when rotating. Attached Figure Description

[0023] Appendix Figure 1 This is a schematic diagram of a bearing inner and outer ring inner wall grinding device according to the present invention.

[0024] Appendix Figure 2 This is a schematic diagram of the workbench structure.

[0025] Appendix Figure 3 This is a schematic diagram of the clamping base structure.

[0026] Appendix Figure 4 This is a bottom view of the mounting bracket.

[0027] Appendix Figure 5 This is a schematic diagram of the assembly of the drive mechanism and the grinding mechanism.

[0028] Appendix Figure 6 This is a schematic diagram of the drive mechanism connection.

[0029] Appendix Figure 7This is a schematic diagram of the grinding mechanism.

[0030] Appendix Figure 8 This is a schematic diagram of the assembly of the first rotating shaft and the drive pulley.

[0031] In the diagram, 1. Workbench; 11. Enclosure; 12. Support frame; 13. Lifting mechanism; 14. Arc-shaped guide rail; 2. Clamping seat; 21. Base; 22. Adjustment groove; 23. Chip removal groove; 24. Clamping block; 25. Rubber pad; 26. Double-ended stud; 27. Driven gear; 28. Slider; 29. ​​Second rotating shaft; 3. Drive mechanism; 31. Drive box; 32. Motor; 33. First bushing; 34. Drive pulley; 5. Second bushing; 36. Driven pulley; 37. Drive gear; 38. Second splined shaft; 39. First rotating shaft; 4. Grinding mechanism; 41. Main rod; 42. Support rod; 43. Fixed seat; 44. Movable seat; 45. Second spring; 46. Baffle; 47. Sandpaper base; 48. Slot; 49. U-shaped frame; 5. Jumping mechanism; 51. Cap; 52. First splined shaft; 53. Support wheel; 54. First spring. Detailed Implementation

[0032] The following will be combined with the appendix Figures 1-8 The technical solutions in the embodiments of this utility model are clearly and completely described herein. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0033] In the description of this utility model, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0034] like Figure 1 As shown, a grinding device for the inner and outer rings of a bearing includes a worktable 1, a clamping base 2, and a drive mechanism 3. Figure 2 As shown, the upper part of the workbench 1 is provided with a support frame 12, and a lifting mechanism 13 is installed on the support frame 12; as Figure 3As shown, the clamping base 2 includes a base 21, which is installed on the upper part of the workbench 1. The base 21 has adjustment grooves 22 on both sides. Two clamping blocks 24 are symmetrically arranged on the upper part of the base 21. One side of the clamping block 24 has a V-shaped opening. The lower part of the base 21 is rotatably connected to a double-ended stud 26. The lower end of the clamping block 24 is provided with a threaded block. The threaded block passes through the adjustment groove 22 and is threadedly connected to the double-ended stud 26. The inner or outer ring of the bearing is placed on the base 21 and clamped by the clamping block 24.

[0035] like Figure 4 , Figure 5 As shown, the drive mechanism 3 includes a drive housing 31, the upper end of the lifting mechanism 13 is connected to the bottom of the drive housing 31, a motor 32 is mounted on the upper part of the drive housing 31, a first bushing 33 is connected to the output shaft of the motor 32, and a jumping mechanism 5 is provided at the lower part of the first bushing 33. The jumping mechanism 5 includes a buckle 51, as shown in the figure. Figure 7 As shown, the buckle 51 has several symmetrically arranged arc-shaped grooves, such as... Figure 6 As shown, a plurality of support wheels 53 are installed inside the drive box 31, and the support wheels 53 are supported on the lower part of the arc-shaped groove; as Figure 7 As shown, a first spline shaft 52 is fixedly connected to the upper part of the buckle 51. The first spline shaft 52 is intermittently sleeved inside the first bushing 33. A first spring 54 is provided outside the first spline shaft 52. The lower end of the first spring 54 abuts against the buckle 51, and the upper end of the first spring 54 abuts against the fixing plate on the first bushing 33. A grinding mechanism 4 is provided at the lower part of the buckle 51.

[0036] When grinding the inner or outer ring of a bearing, the lifting mechanism 13 controls the drive mechanism 3 to rise, which in turn controls the grinding mechanism 4 to rise, creating operating space for clamping the inner or outer ring of the bearing. Multiple bearing inner or outer rings are stacked on the base 21, and then the double-ended stud 26 is rotated. The double-ended stud 26 drives the clamping blocks 24 on both sides to move towards the center, thereby clamping the inner or outer ring of the bearing. Then, the lifting mechanism 13 controls the drive mechanism 3 to descend, so that the grinding mechanism 4 extends into the inner or outer ring. The motor 32 is started, and the motor 32 drives the first bushing 33 to rotate, which in turn drives the first spline shaft 52 to rotate. When the first spline shaft 52 rotates, it drives the cap 51 to rotate, and when the cap 51 rotates, it drives the grinding mechanism 4 to rotate, thereby simultaneously grinding multiple bearing inner and outer rings, improving the efficiency of grinding the inner and outer rings of the bearing.

[0037] When the cap 51 rotates, under the combined action of the arc groove and the support wheel 53, the cap 51 also jumps up and down, driving the grinding mechanism 4 to move up and down within a certain range, ensuring the uniformity of wear of the grinding mechanism 4, thereby ensuring the consistency and stability of grinding the inner walls of the inner and outer rings of different batches of bearings.

[0038] like Figure 2As shown, in this embodiment, the lifting mechanism 13 is a cylinder.

[0039] like Figure 3 As shown, the base 21 is provided with several chip discharge grooves 23 for discharging the chips from the grinding process.

[0040] like Figure 3 As shown, a rubber pad 25 is provided on the inner wall of the V-shaped opening of the clamping block 24 to prevent the clamping block 24 from damaging the inner or outer ring of the bearing.

[0041] like Figure 7 As shown, the grinding mechanism 4 includes a main rod 41, the upper end of which is fixedly connected to a cap 51, and a fixed seat 43 fixedly connected to the lower end of the main rod 41. A movable seat 44 is also movably connected to the main rod 41. Several support rods 42 are movably connected to the outer sides of both the fixed seat 43 and the movable seat 44. One end of each support rod 42 is pivotally connected to a sandpaper base 47, and sandpaper adheres to the outer side of the sandpaper base 47. A baffle 46 is provided on the main rod 41, and a second spring 45 is sleeved on the outside of the main rod 41. The lower end of the second spring 45 abuts against the movable seat 44, and the upper end of the second spring 45 abuts against the baffle 46. The second spring 45 allows the sandpaper base 47 of the grinding mechanism 4 to adapt to the diameter of the inner and outer rings of the bearing, making it suitable for grinding the inner and outer rings of bearings with different diameters, thus improving the flexibility and versatility of the grinding mechanism 4.

[0042] like Figure 7 As shown, the baffle 46 is threadedly connected to the main rod 41 and is used to adjust the preload of the second spring 45, thereby adjusting the force and precision of the grinding mechanism 4 when grinding the inner and outer rings of the bearing.

[0043] like Figure 7 As shown, the sandpaper base 47 has a slot 48 in the middle, and the edge of the sandpaper is placed in the slot 48. A U-shaped frame 49 is detachably installed in the slot 48 to facilitate the quick installation and replacement of the sandpaper.

[0044] like Figure 8 As shown, a drive pulley 34 is fixedly connected to the first bushing 33, such as... Figure 6 As shown, a second bushing 35 is rotatably connected to one side of the drive box 31, and a driven pulley 36 is fixedly connected to the second bushing 35. The driving pulley 34 and the driven pulley 36 are connected by a transmission belt. A first rotating shaft 39 is rotatably connected to the worktable 1, and a driving gear 37 is fixedly connected to the upper end of the first rotating shaft 39. A second splined shaft 38 is fixedly connected to the upper part of the driving gear 37, and the second splined shaft 38 is intermittently inserted into the second bushing 35. Figure 3 , Figure 4As shown, a driven gear 27 meshes with the driving gear 37 on one side. A second rotating shaft 29 is fixedly connected to the lower part of the driven gear 27. The second rotating shaft 29 is rotatably connected to the worktable 1. The base 21 is fixedly installed on the upper part of the driven gear 27. Figure 2 As shown, the workbench 1 is provided with a surrounding plate 11, and the driving gear 37 and the driven gear 27 are disposed inside the surrounding plate 11.

[0045] When the motor 32 drives the first bushing 33 to rotate, it drives the second bushing 35 to rotate via belt drive. The rotation directions of the first bushing 33, the second bushing 35, and the grinding mechanism 4 are the same. When the second bushing 35 rotates, it drives the drive gear 37 to rotate. The drive gear 37 drives the driven gear 27 to rotate, thereby driving the clamping seat 2 to rotate. The rotation directions of the clamping seat 2 and the grinding mechanism 4 are opposite, which further improves the efficiency of grinding the inner or outer ring of the bearing.

[0046] like Figure 2 As shown, the upper part of the workbench 1 is provided with an arc-shaped guide rail 14, such as... Figure 4 As shown, the driven gear 27 has several evenly arranged sliders 28 at its lower part. The sliders 28 are slidably mounted on the arc-shaped guide rail 14. The arc-shaped guide rail 14 and the sliders 28 support the bottom of the driven gear 27, which enhances the stability of the driven gear 27 and the clamping seat 2 above it when rotating.

[0047] The above description is merely an example and illustration of the structure of this utility model. Those skilled in the art can make various modifications or additions to the specific embodiments described or use similar methods to replace them, as long as they do not deviate from the structure of the utility model or exceed the scope defined in the claims, they should all fall within the protection scope of this utility model.

Claims

1. A grinding device for the inner and outer rings of a bearing, comprising a worktable (1), a clamping base (2), and a driving mechanism (3), characterized in that, The workbench (1) is provided with a support frame (12) on the upper part, and a lifting mechanism (13) is installed on the support frame (12); the clamping seat (2) includes a base (21), which is installed on the upper part of the workbench (1). The base (21) has adjustment grooves (22) on both sides, and two clamping blocks (24) are symmetrically provided on the upper part of the base (21). One side of the clamping block (24) has a V-shaped opening. The lower part of the base (21) is rotatably connected to a double-headed stud (26). The lower end of the clamping block (24) is provided with a threaded block. The threaded block passes through the adjustment groove (22) and is threadedly connected to the double-headed stud (26). The inner or outer ring of the bearing is placed on the base (21) and clamped by the clamping block (24). The drive mechanism (3) includes a drive box (31), the upper end of the lifting mechanism (13) is connected to the bottom of the drive box (31), a motor (32) is installed on the upper part of the drive box (31), a first bushing (33) is connected to the output shaft of the motor (32), a jumping mechanism (5) is provided at the lower part of the first bushing (33), the jumping mechanism (5) includes a buckle (51), a number of symmetrically arranged arc grooves are provided on the buckle (51), and a number of supports are installed inside the drive box (31). The wheel (53) and the support wheel (53) are supported on the lower part of the arc groove; the upper part of the buckle (51) is fixedly connected to the first spline shaft (52), the first spline shaft (52) is intermittently sleeved in the first bushing (33), the outside of the first spline shaft (52) is provided with a first spring (54), the lower end of the first spring (54) abuts against the buckle (51), and the upper end of the first spring (54) abuts against the fixing plate on the first bushing (33); the lower part of the buckle (51) is provided with a grinding mechanism (4).

2. The bearing inner and outer ring inner wall grinding device according to claim 1, characterized in that, The lifting mechanism (13) is a hydraulic cylinder, a pneumatic cylinder, or an electric push rod.

3. The bearing inner and outer ring inner wall grinding device according to claim 1, characterized in that, The base (21) is provided with several chip discharge grooves (23) for discharging the chips from the grinding process.

4. The bearing inner and outer ring inner wall grinding device according to claim 1, characterized in that, A rubber pad (25) is provided on the inner wall of the V-shaped opening of the clamping block (24).

5. The bearing inner and outer ring inner wall grinding device according to claim 1, characterized in that, The grinding mechanism (4) includes a main rod (41), the upper end of which is fixedly connected to a buckle (51), a fixed seat (43) is fixedly connected to the lower end of the main rod (41), and a movable seat (44) is movably connected to the main rod (41). Several support rods (42) are movably connected to the outer sides of the fixed seat (43) and the movable seat (44). One end of the support rod (42) is pivotally connected to a sandpaper base (47), and the sandpaper adheres to the outer side of the sandpaper base (47). A baffle (46) is provided on the main rod (41), and a second spring (45) is sleeved on the outside of the main rod (41). The lower end of the second spring (45) abuts against the movable seat (44), and the upper end of the second spring (45) abuts against the baffle (46).

6. The bearing inner and outer ring inner wall grinding device according to claim 5, characterized in that, The baffle (46) is threadedly connected to the main rod (41) and is used to adjust the preload of the second spring (45).

7. A bearing inner and outer ring inner wall grinding device according to claim 5, characterized in that, The sandpaper base (47) has a slot (48) in the middle, and the edge of the sandpaper is placed in the slot (48). A U-shaped frame (49) is detachably installed in the slot (48).

8. A bearing inner and outer ring inner wall grinding device according to any one of claims 1-7, characterized in that, A drive pulley (34) is fixedly connected to the first bushing (33), and a second bushing (35) is rotatably connected to one side of the drive box (31). A driven pulley (36) is fixedly connected to the second bushing (35), and the drive pulley (34) and the driven pulley (36) are connected by a transmission belt. A first rotating shaft (39) is rotatably connected to the worktable (1), and a drive gear (37) is fixedly connected to the upper end of the first rotating shaft (39). A second splined shaft (3) is fixedly connected to the upper part of the drive gear (37). 8) The second spline shaft (38) is intermittently inserted into the second bushing (35); the driven gear (27) is meshed with the driven gear (27) on one side, and the lower part of the driven gear (27) is fixedly connected to the second rotating shaft (29). The second rotating shaft (29) is rotatably connected to the worktable (1), and the base (21) is fixedly installed on the upper part of the driven gear (27); the worktable (1) is provided with a surrounding plate (11), and the driven gear (37) and the driven gear (27) are located inside the surrounding plate (11).

9. A bearing inner and outer ring inner wall grinding device according to claim 8, characterized in that, The workbench (1) is provided with an arc-shaped guide rail (14) on the upper part, and the driven gear (27) is provided with a number of evenly arranged sliders (28) on the lower part. The sliders (28) are slidably mounted on the arc-shaped guide rail (14).

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