Positioning device for bearing ring machining

Abstract

This utility model discloses a positioning device for machining bearing rings, including a machining table with four fixed feet at the bottom corners. A base plate is provided below the machining table, and the base plate and the feet are fixed together. Multiple first stroke grooves are formed inside the machining table, and a moving block is slidably connected within each groove. A positioning rod is slidably connected within each moving block, and a pressure plate is fixed to the top of the positioning rod. A rotating rod is rotatably connected to the bottom of the machining table, and a driven gear plate is fixed to the outside of the rotating rod. A cylindrical tube is fixed to the bottom of the moving block, and the positioning rod is slidably fitted inside the cylindrical tube. A primary drive assembly for driving the positioning rod to move laterally is provided inside the driven gear plate. This device can not only synchronously control the movement of multiple positioning rods, enabling them to simultaneously position the bearing rings, making operation convenient, but also allows multiple positioning rods to position both the inner and outer rings of the bearing rings, thus facilitating the machining of both the inner and outer rings.

Description

Technical Field

[0001] This utility model relates to the field of bearing ring processing technology, and in particular to a positioning device for bearing ring processing. Background Technology

[0002] Bearings are an important component in modern mechanical equipment. Their main function is to support rotating mechanical bodies, reduce the coefficient of friction during their movement, and ensure their rotational accuracy. Bearing rings are an important component of bearings. After the bearing rings are manufactured, they usually need to be polished. For this purpose, a positioning device is usually used to position the bearing rings to facilitate subsequent polishing.

[0003] CN210997837U discloses a positioning device for machining bearing rings. This positioning device allows the push rod to be manually rotated on the limiting ring, thus displacing the push rod on the limiting ring. This facilitates the push rod driving the top plate to clamp and position the bearing ring, thereby adapting to different bearing ring diameters and improving the stability of positioning and machining them.

[0004] The aforementioned existing technology has the following drawbacks when positioning bearing rings: First, each push rod needs to be adjusted individually, and the push rod and the limiting ring are threaded together, making it very troublesome to adjust each push rod individually. In addition, the height of each cross plate also needs to be adjusted individually, which also makes the operation very cumbersome. Furthermore, this positioning method can only fix the outer ring of the bearing ring, and cannot position both the inner and outer rings. In the subsequent polishing process, the inner or outer side of the bearing ring needs to be fixed alternately, so that the inner or outer side of the bearing ring can be polished alternately. Utility Model Content

[0005] (a) Purpose of the utility model

[0006] In view of this, the purpose of this utility model is to propose a positioning device for bearing ring processing. The technical problem it aims to solve is that the existing technology has the following defects when positioning bearing rings: First, each push rod needs to be adjusted individually, and the push rod and the limiting ring are threadedly connected, which makes it very troublesome to adjust each push rod individually. In addition, the height of each cross plate also needs to be adjusted individually, which also makes the operation very cumbersome. Furthermore, this positioning method can only fix the outer ring of the bearing ring, and cannot position both the inner and outer rings. In the subsequent polishing process, the inner or outer side of the bearing ring needs to be fixed alternately, so that the inner or outer side of the bearing ring can be polished alternately.

[0007] (II) Technical Solution

[0008] To achieve the above technical objectives, this utility model provides a positioning device for machining bearing rings:

[0009] It includes a processing table, with four feet fixed at the bottom corners of the processing table. A base plate is provided below the processing table, and the base plate and the feet are fixed together. Multiple first stroke grooves are opened inside the processing table. A moving block is slidably connected in the first stroke groove. A positioning rod is slidably connected in the moving block. A pressure plate is fixed to the top of the positioning rod. A rotating rod is rotatably connected to the bottom of the processing table. A driven gear plate is fixed to the outside of the rotating rod. A cylindrical tube is fixed to the bottom of the moving block. The positioning rod is slidably fitted inside the cylindrical tube. A primary drive assembly for driving the positioning rod to move laterally is provided inside the driven gear plate. A secondary drive assembly for driving the positioning rod to move longitudinally is provided on the base plate.

[0010] Preferably, the primary drive assembly includes multiple curved grooves formed in the driven gear disk, and multiple cylindrical tubes are slidably fitted in the corresponding curved grooves. The base plate and the processing table are rotatably connected by a rotating shaft. A drive gear is fixed at the top of the rotating shaft. The drive gear meshes with the driven gear disk. A first servo motor is installed at the bottom of the base plate. One end of the rotating shaft is fixed to the output end of the first servo motor.

[0011] Preferably, a hollow column is fixed to the top of the base plate, a movable disk is slidably connected inside the hollow column, a screw is rotatably connected between the hollow column and the base plate, the screw passes through the movable disk and is threadedly connected to the movable disk, a second servo motor is installed at the bottom of the base plate, and one end of the screw is fixed to the output end of the second servo motor.

[0012] Preferably, the secondary drive assembly includes multiple moving rods fixed to the outside of the moving disk, multiple second stroke grooves for corresponding moving rods to slide in the hollow column, a third stroke groove in the moving rod, a positioning rod slidably engaging in the third stroke groove, two stops fixed on the positioning rod, the moving rod being located between the two stops, and the diameter of the stops being larger than the width of the third stroke groove.

[0013] Preferably, grooves are provided on both sides of the first travel groove, and protrusions are fixed on both sides of the moving block, with the protrusions slidingly engaged in the corresponding grooves.

[0014] As can be seen from the above technical solutions, this application has the following beneficial effects:

[0015] 1. Start the first servo motor to drive the rotating shaft and the drive gear to rotate. When the drive gear rotates, it drives the driven gear plate to rotate. When the driven gear plate rotates, it causes the curved groove to squeeze the cylindrical tube and move the cylindrical tube. When the cylindrical tube moves, it drives the moving block and the positioning rod to move, so that the positioning rod moves closer to the bearing ring, thereby positioning the outer ring of the bearing ring. When it is necessary to position the inner ring of the bearing ring, first, the multiple positioning rods are brought together, and then the bearing ring is placed outside the multiple positioning rods. Start the first servo motor to control the rotating shaft and the drive gear to rotate in the opposite direction, so that the positioning rod moves closer to the inner ring of the bearing ring. That is, the positioning rod can position the inner ring of the bearing ring. This method can not only control multiple positioning rods to move simultaneously, so that multiple positioning rods can position the bearing ring simultaneously, which is convenient to operate, but also multiple positioning rods can position both the inner and outer rings of the bearing ring, thus facilitating the processing of the inner and outer rings of the bearing ring.

[0016] 2: Start the second servo motor to drive the screw to rotate. When the screw rotates, it drives the moving disc and moving rod to move. When the moving rod moves, it drives the positioning rod and pressure plate to move. When the pressure plate abuts against the top of the bearing ring, the pressure plate also restricts the top of the bearing ring, which improves the firmness of the bearing ring after positioning. This method can control multiple pressure plates to move simultaneously, which is convenient to operate. Furthermore, since the positioning rod is height-adjustable, it is possible to position bearing rings at different heights. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0018] Figure 1 A schematic diagram of the positioning device for machining bearing rings provided by this utility model;

[0019] Figure 2 Provided by this utility model Figure 1 Schematic diagram of the structure at point A;

[0020] Figure 3 A partial cross-sectional structural schematic diagram of the positioning device for machining bearing rings provided by this utility model;

[0021] Figure 4 Provided by this utility model Figure 3 Schematic diagram of the structure at point B;

[0022] Figure 5A partial structural schematic diagram of the positioning device for machining bearing rings provided by this utility model;

[0023] Figure 6 A top view schematic diagram of the positioning structure of the inner and outer rings of the bearing sleeve provided by this utility model.

[0024] Figure Descriptions: 1. Machining table; 2. Support leg; 3. Base plate; 4. First stroke groove; 5. Moving block; 6. Positioning rod; 7. Pressure plate; 8. Rotating rod; 9. Driven gear plate; 10. Cylindrical cylinder; 11. Curved groove; 12. Drive gear; 13. Rotating shaft; 14. First servo motor; 15. Hollow column; 16. Moving plate; 17. Second stroke groove; 18. Moving rod; 19. Third stroke groove; 20. Stop block; 21. Screw; 22. Second servo motor; 23. Protrusion; 24. Groove; 25. Bearing ring. Detailed Implementation

[0025] The following description is exemplary in nature and is not intended to limit the scope, application, or use of this disclosure. It should be understood that in all these figures, the same or similar reference numerals indicate the same or similar parts and features. The figures are merely schematic representations of the concept and principles of embodiments of this disclosure and do not necessarily show the specific dimensions and scale of the various embodiments of this disclosure. Certain details or structures of embodiments of this disclosure may be exaggerated in particular portions of certain figures.

[0026] Reference Figure 1-6 :

[0027] In one embodiment of this utility model, a positioning device for machining bearing rings is provided, including a machining table 1, with four support legs 2 fixed at the bottom corners of the machining table 1, a base plate 3 provided below the machining table 1, and the base plate 3 and the support legs 2 being fixed together. Multiple first stroke grooves 4 are provided inside the machining table 1, with a moving block 5 slidably connected within each first stroke groove 4, and a positioning rod 6 slidably connected within each moving block 5. A pressure plate 7 is fixed to the top of the positioning rod 6. A rotating rod 8 is rotatably connected to the bottom of the machining table 1, with a driven gear 9 fixed to the outside of the rotating rod 8. A cylindrical cylinder 10 is fixed to the bottom of the moving block 5, and the positioning rod 6 is slidably fitted within the cylindrical cylinder 10. A primary drive assembly for driving the positioning rod 6 to move laterally is provided inside the driven gear 9, and a secondary drive assembly for driving the positioning rod 6 to move longitudinally is provided on the base plate 3. Grooves 24 are provided on both sides of the first stroke grooves 4, and protrusions 23 are fixed on both sides of the moving block 5, with the protrusions 23 slidably fitted within the corresponding grooves 24.

[0028] The primary drive assembly includes multiple curved grooves 11 formed in the driven gear disk 9, and multiple cylindrical cylinders 10 slidingly fitted in the corresponding curved grooves 11. A rotating shaft 13 is rotatably connected to the base plate 3 and the processing table 1. A drive gear 12 is fixed on the top of the rotating shaft 13, and the drive gear 12 meshes with the driven gear disk 9. A first servo motor 14 is installed at the bottom of the base plate 3, and one end of the rotating shaft 13 is fixed to the output end of the first servo motor 14.

[0029] In use, the bearing ring 25 is placed on the processing table 1, and then the first servo motor 14 is started to drive the rotating shaft 13 to rotate. When the rotating shaft 13 rotates, it drives the drive gear 12 to rotate. When the drive gear 12 rotates, it drives the driven gear plate 9 to rotate. When the driven gear plate 9 rotates, the curved groove 11 squeezes the cylindrical cylinder 10 and drives the cylindrical cylinder 10 to move. When the cylindrical cylinder 10 moves, it drives the moving block 5 and the positioning rod 6 to move, so that the positioning rod 6 moves closer to the bearing ring 25, thereby positioning the outer ring of the bearing ring 25. When it is necessary to position the inner ring of the bearing ring 25, firstly, multiple positioning rods 6 are used. The bearing rings 25 are brought together and then placed outside the multiple positioning rods 6. Then, the first servo motor 14 is started to control the rotating shaft 13 and the drive gear 12 to rotate in the opposite direction, so that the positioning rods 6 move closer to the inner ring of the bearing ring 25. That is, the positioning rods 6 can position the inner ring of the bearing ring 25. This method can not only control multiple positioning rods 6 to move simultaneously, so that multiple positioning rods 6 can simultaneously position the bearing ring 25, which is convenient to operate, but also multiple positioning rods 6 can position both the inner and outer rings of the bearing ring 25, thus facilitating the processing of the inner and outer rings of the bearing ring 25.

[0030] In addition, a hollow column 15 is fixed to the top of the base plate 3, and a movable disk 16 is slidably connected inside the hollow column 15. A screw 21 is rotatably connected between the hollow column 15 and the base plate 3. The screw 21 passes through the movable disk 16 and is threadedly connected to the movable disk 16. A second servo motor 22 is installed at the bottom of the base plate 3, and one end of the screw 21 is fixed to the output end of the second servo motor 22.

[0031] It should be noted that the first servo motor 14 and the second servo motor 22 in this embodiment are both commercially available conventional devices known to those skilled in the art. The model can be selected or customized according to actual needs. In this patent, we only use them without improving their structure and function. Their setting method, installation method and electrical connection method can be debugged and operated by those skilled in the art according to the requirements of their instruction manual, and will not be described in detail here.

[0032] Furthermore, the secondary drive assembly includes multiple moving rods 18 fixed to the outside of the moving disk 16. The hollow column 15 has multiple second stroke grooves 17 for sliding of the corresponding moving rods 18. The moving rods 18 have third stroke grooves 19. The positioning rod 6 is slidably engaged in the third stroke groove 19. Two stops 20 are fixed on the positioning rod 6. The moving rod 18 is located between the two stops 20. The diameter of the stops 20 is larger than the width of the third stroke groove 19.

[0033] In use, when the moving block 5 moves within the first stroke groove 4, the bottom of the positioning rod 6 moves within the third stroke groove 19. After the positioning rod 6 positions the bearing ring 25, the second servo motor 22 is activated to drive the screw 21 to rotate. When the screw 21 rotates, it drives the moving disk 16 to move. When the moving disk 16 moves, it drives the moving rod 18 to move. When the moving rod 18 moves, it drives the positioning rod 6 to move. When the positioning rod 6 moves, it drives the pressure plate 7 to move, causing the pressure plate 7 to abut against the top of the bearing ring 25. This also restricts the top of the bearing ring 25, improving the stability of the bearing ring 25 after positioning. This method can also control multiple pressure plates 7 to move simultaneously, making operation convenient. Furthermore, since the positioning rod 6 is height-adjustable, it can position bearing rings 25 at different heights.

[0034] The exemplary implementation of the solution proposed in this disclosure has been described in detail above with reference to preferred embodiments. However, those skilled in the art will understand that various modifications and alterations can be made to the above specific embodiments without departing from the spirit of this disclosure, and various combinations can be made to the various technical features and structures proposed in this disclosure without exceeding the protection scope of this disclosure, which is determined by the appended claims.

Claims

1. A positioning device for machining bearing rings, comprising a machining table (1), characterized in that, The processing table (1) has four fixed feet (2) at the bottom corners. A base plate (3) is provided below the processing table (1), and the base plate (3) and the feet (2) are fixed together. Multiple first stroke grooves (4) are provided in the processing table (1). A moving block (5) is slidably connected in the first stroke groove (4). A positioning rod (6) is slidably connected in the moving block (5). A pressure plate (7) is fixed on the top of the positioning rod (6). A rotating rod (8) is rotatably connected to the bottom of the processing table (1). A driven gear plate (9) is fixed on the outside of the rotating rod (8). A cylindrical tube (10) is fixed on the bottom of the moving block (5). The positioning rod (6) is slidably fitted in the cylindrical tube (10). A primary drive assembly for driving the positioning rod (6) to move laterally is provided in the driven gear plate (9). A secondary drive assembly for driving the positioning rod (6) to move longitudinally is provided on the base plate (3).

2. The positioning device for machining bearing rings according to claim 1, characterized in that, The primary drive assembly includes multiple curved grooves (11) formed in the driven gear disk (9), and multiple cylindrical tubes (10) are slidably fitted in the corresponding curved grooves (11). The base plate (3) and the processing table (1) are rotatably connected to a rotating shaft (13). A drive gear (12) is fixed on the top of the rotating shaft (13). The drive gear (12) meshes with the driven gear disk (9). A first servo motor (14) is installed at the bottom of the base plate (3). One end of the rotating shaft (13) is fixed to the output end of the first servo motor (14).

3. The positioning device for machining bearing rings according to claim 1, characterized in that, A hollow column (15) is fixed to the top of the base plate (3). A movable disk (16) is slidably connected inside the hollow column (15). A screw (21) is rotatably connected between the hollow column (15) and the base plate (3). The screw (21) passes through the movable disk (16) and is threadedly connected to the movable disk (16). A second servo motor (22) is installed at the bottom of the base plate (3). One end of the screw (21) is fixed to the output end of the second servo motor (22).

4. The positioning device for machining bearing rings according to claim 3, characterized in that, The secondary drive assembly includes multiple moving rods (18) fixed to the outside of the moving disk (16). The hollow column (15) has multiple second stroke grooves (17) for the corresponding moving rods (18) to slide. The moving rods (18) have third stroke grooves (19). The positioning rod (6) is slidably engaged in the third stroke groove (19). The positioning rod (6) has two stops (20) fixed on it. The moving rod (18) is located between the two stops (20). The diameter of the stops (20) is greater than the width of the third stroke groove (19).

5. The positioning device for machining bearing rings according to claim 1, characterized in that, The first travel groove (4) has grooves (24) on both sides of the groove wall, and the moving block (5) has protrusions (23) fixed on both sides. The protrusions (23) slide in the corresponding grooves (24).

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