Bearing ring grinding device

Abstract

The invention relates to the technical field of bearing ring grinding, in particular to a bearing ring grinding device which comprises a grinding table, a pushing mechanism, a rotary driving mechanism, a feeding mechanism, a feeding column, an expansion sleeve head, an expansion sleeve driving assembly and an outer circle grinding mechanism, the expansion sleeve head is arranged at the tail end of the feeding column, and the front end of the feeding column is rotationally connected with the pushing mechanism; the rotary driving mechanism is connected with the feeding column, the feeding mechanism is provided with a feeding channel and a round hole communicating with the feeding channel, a plurality of tensioning blocks capable of moving in the radial direction are arranged on the side face of the tensioning sleeve head in the circumferential direction, and guide blocks capable of moving in the radial direction are arranged on the two sides of the feeding column correspondingly. The guide block and the tensioning blocks are sequentially connected through the front transmission assembly and the tail transmission assembly, the tensioning sleeve head conducts tensioning clamping and releasing on the bearing ring through the multiple tensioning blocks, and after the bearing ring is released, the bearing ring abutting against the outer circle grinding mechanism falls off when the feeding column and the tensioning sleeve head reset. Therefore, automatic feeding and discharging of the bearing rings are achieved.

Description

Technical Field

[0001] The invention relates to the technical field of bearing ring grinding, in particular to a bearing ring grinding device. Background Art

[0002] A bearing is a precision mechanical component that converts the sliding friction between a rotating shaft and a shaft seat into rolling friction, thereby reducing friction losses. It is generally composed of four parts: an inner ring, an outer ring, rolling elements, and a cage. The inner ring and outer ring are collectively referred to as bearing rings. Since the outer circle of the inner ring and the inner hole of the outer ring are in direct contact with the rolling elements, the outer circle of the inner ring and the inner hole of the outer ring need to be finely ground to ensure the performance of the bearing.

[0003] For the grinding of the outer circle of the bearing ring, workers usually put the bearing ring on the expansion clamp, use the expansion clamp to tighten and clamp the bearing ring from the inside, and then the grinding equipment rotates around the bearing ring or the bearing ring rotates on its own, so that the grinding equipment grinds the outer circle of the bearing ring. After the grinding is completed, the worker needs to operate the expansion clamp to release the bearing ring and replace it with a new one. The grinding process is highly dependent on workers and has low efficiency.

[0004] For example, a Chinese invention patent with publication number CN116810510A discloses a bearing ring grinding device, including a base, a fixing ring is arranged on the top of the base, an inner ring is embedded and installed inside one end of the fixing ring, a plurality of slide grooves are opened on one side of the inner ring, and the plurality of slide grooves are evenly distributed in a circular ring shape, a slider is embedded in the slide groove, and the slide groove is slidably connected to the slider. In actual use, the user puts the inner ring of the bearing on the inner clamping plate, and the inner ring of the bearing can be directly slid along the guide plate on the outside of the plurality of inner clamping plates. The inner clamping plate will expand outward under the action of the spring to fix the inner ring of the bearing, and then the outer ring is rotated to shrink the plurality of blocks, thereby driving the plurality of outer clamping plates to fix the outer ring of the bearing, and the bearing is ensured to be more stable by clamping on both the inside and outside.

[0005] Although the above patent uses a spring to drive the inner clamp to tighten and clamp the bearing ring, the bearing ring is still taken and placed manually, which is inconvenient and difficult to further improve efficiency during use. Summary of the invention

[0006] In order to make up for the above shortcomings, the present invention provides a bearing ring grinding device to solve the problems raised in the above background technology.

[0007] The technical solution of the present invention is:

[0008] A bearing ring grinding device comprises a grinding table, a pushing mechanism, a rotating driving mechanism, a feeding mechanism, a feeding column, a sleeve expansion head, a sleeve expansion driving assembly and an outer cylindrical grinding mechanism, wherein the pushing mechanism, the rotating driving mechanism, the feeding mechanism and the sleeve expansion driving assembly are all arranged on the grinding table;

[0009] The expansion sleeve is arranged at the end of the feeding column, the diameter of the expansion sleeve is adapted to the aperture of the bearing ring, the front end of the feeding column is rotatably connected to the pushing mechanism, and the rotary drive mechanism is connected to the feeding column;

[0010] The feeding mechanism has a feeding channel for arranging and moving the bearing rings, and the feeding mechanism has a circular hole connected to the feeding channel for the feeding column, the expansion sleeve head and the bearing ring to pass through, the circular hole is coaxial with the bearing ring at the end of the feeding channel, the circular hole is coaxial with the expansion sleeve head, the diameter of the expansion sleeve head is adapted to the inner diameter of the bearing ring, the diameter of the feeding column is larger than the diameter of the expansion sleeve head and smaller than the outer diameter of the bearing ring, and the aperture of the circular hole is adapted to the outer diameter of the bearing ring;

[0011] The side surface of the expansion sleeve head is provided with at least three tail plug holes at equal intervals along the circumferential direction, and the tail plug holes are plugged with tension blocks, and both sides of the feeding column are provided with front plug holes, and the front plug holes are plugged with guide blocks;

[0012] The expansion sleeve head is provided with a rear transmission assembly connected to a plurality of tensioning blocks, and the feeding column is provided with a front transmission assembly connected to the guide blocks on both sides;

[0013] The pushing mechanism pushes the feeding column to move the bearing ring on the expansion sleeve head to the grinding position of the external cylindrical grinding mechanism, and moves the guide block to the expansion sleeve driving assembly;

[0014] The expansion sleeve driving assembly pushes the guide blocks on both sides of the feeding column radially, so that the front transmission assembly pushes the tensioning block outward with the help of the rear transmission assembly, so that the bearing ring on the expansion sleeve head is tightened and clamped;

[0015] The rotary drive mechanism is used to drive the feeding column to rotate when the outer cylindrical grinding mechanism grinds the outer cylindrical surface of the bearing ring.

[0016] Preferably, the feeding mechanism comprises a feeding pipe provided with a feeding channel and a circular hole, and a bracket connecting the feeding pipe and the grinding table, and the end of the feeding pipe provided with the circular hole is tilted downward.

[0017] Preferably, the tail transmission assembly comprises a rear oblique rod and an axial transmission rod, the expansion sleeve head is provided with a guide hole for sliding and inserting the axial transmission rod, and a tail cavity communicating with the guide hole is provided in the end of the expansion sleeve head;

[0018] The front ends of the plurality of rear oblique rods are hinged to the end of the axial transmission rod, and the plurality of rear oblique rods are tiltedly arranged with their front ends close to each other, and the front ends of the axial transmission rods are connected to the front transmission assembly.

[0019] Preferably, the front transmission assembly includes a front oblique rod and a return spring, the end of the feeding column is provided with a front cavity communicating with the guide hole and the front plug hole, one end of the front oblique rod is hinged to the guide block, and the other end is hinged to the front end of the axial transmission rod, and the front end of the front oblique rod connected to the guide block is always tilted away from the outside of the axial transmission rod;

[0020] A lateral support block is provided in the front cavity and between the front insertion holes on both sides. The return spring is arranged on the side of the limit plate and is connected to the guide block on the same side.

[0021] Preferably, the expansion sleeve driving assembly comprises an expansion sleeve driving cylinder, an auxiliary clamping plate and a roller, columns are arranged on both sides of the grinding table, the feeding column and the expansion sleeve head with a bearing ring can reciprocate between the columns on both sides, and the inner sides of the columns on both sides are provided with expansion sleeve driving cylinders;

[0022] The outer side of the auxiliary clamp is connected to the expansion sleeve driving cylinder, and the expansion sleeve driving cylinder drives the guide block to move into the front cavity with the help of the auxiliary clamp;

[0023] The inner side of the auxiliary clamping plate is arc-shaped, and the diameter of the circle corresponding to the arc-shaped contour of the inner side of the auxiliary clamping plate is the same as the diameter of the feeding column. The top and bottom of the auxiliary clamping plate extend along the circumference of the feeding column, so that the expansion sleeve driving cylinders on both sides can clamp the feeding column with the help of the auxiliary clamping plate during the process of grinding the outer circle of the bearing ring by the external cylindrical grinding mechanism. The roller is rotatably arranged on the inner side of the auxiliary clamping plate, so that the feeding plate can be rotated by the roller when clamped by the auxiliary clamping plates on both sides.

[0024] Preferably, the expansion sleeve drive assembly also includes a screw and a screw head, the inner side of the auxiliary clamp is provided with a threaded hole matching the screw, the screw head is arranged at the end of the screw, and the auxiliary clamp pushes the guide block with the help of the screw and the screw head.

[0025] Preferably, the pushing mechanism includes a linear guide rail, a linkage table and a ring, the side wall at the front end of the feeding column is provided with an annular groove for inserting the ring, the ring is rotatably connected to the feeding column, the linkage table is slidably set on the grinding table, the pushing mechanism is set on the grinding table and connected to the linkage table, and the ring is set on the linkage table.

[0026] Preferably, the rotary drive mechanism includes a motor, a driving gear and a driven gear, the driven gear is set at the front end of the feeding column through shaft rotation, and the driven gear is coaxially arranged with the feeding column, the motor is arranged on the linkage table, the driving gear is arranged on the motor, and is meshed and connected with the driven gear.

[0027] Preferably, a receiving plate for receiving the bearing ring is provided on the grinding table and between the two side columns, and a drainage groove for receiving the coolant is provided on the upper surface of the receiving plate, and the width of the drainage groove is smaller than the axial length of the bearing ring.

[0028] Preferably, the receiving plate and the ends of the liquid discharge groove that are away from each other are both tilted downward, so that the bearing ring and the coolant are respectively discharged from the two ends of the receiving plate.

[0029] Compared with the prior art, the present invention has the following beneficial effects:

[0030] Firstly, the present invention pushes the feeding column and the expansion sleeve head through the pushing mechanism, so that the expansion sleeve head carries the bearing ring when passing through the feeding channel and the circular hole of the feeding mechanism. After the bearing ring reaches the grinding position of the external cylindrical grinding mechanism, the expansion sleeve driving component pushes the guide block on the side of the feeding column. Under the transmission of the rear transmission component and the front transmission component, the multiple tensioning blocks on the side of the expansion sleeve head tighten and clamp the bearing ring. When the grinding of the bearing ring is completed, the tensioning block is reset, and the external cylindrical grinding mechanism abuts against the outer circle of the bearing ring. When the feeding column and the expansion sleeve head are reset, the bearing ring falls from the expansion sleeve head, thereby realizing automatic loading and unloading of the bearing ring.

[0031] Secondly, the present invention achieves the clamping of the feeding column by cooperating the expansion sleeve driving cylinder with the auxiliary clamping plate with rollers arranged inside, so as to avoid or reduce the shaking of the feeding column during the grinding process and ensure the grinding processing accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 It is a schematic diagram of the overall structure of the bearing ring grinding device of the present invention;

[0033] Figure 2 It is a structural schematic diagram of the pushing mechanism of the present invention;

[0034] Figure 3 It is a structural schematic diagram of the feeding mechanism of the present invention;

[0035] Figure 4 It is a structural schematic diagram of the expansion sleeve driving assembly of the present invention;

[0036] Figure 5 It is a structural schematic diagram of the material receiving plate of the present invention;

[0037] Figure 6It is a cross-sectional schematic diagram of the material receiving plate of the present invention;

[0038] Figure 7 It is a schematic structural diagram of the feeding column and the expansion sleeve head of the present invention;

[0039] Figure 8 It is a schematic structural diagram of the feeding column of the present invention;

[0040] Fig. 9 It is a structural schematic diagram of the expansion sleeve head of the present invention;

[0041] Fig.10 It is a schematic structural diagram of the tail transmission assembly and the front transmission assembly of the present invention.

[0042] In the figure:

[0043] 1. Grinding table; 2. Pushing mechanism; 3. Rotating drive mechanism; 4. Feeding mechanism; 5. Feeding channel; 6. Feeding column; 7. Expanding sleeve head; 8. Expanding sleeve driving assembly; 9. External cylindrical grinding mechanism; 10. Round hole; 11. Tail plug hole; 12. Tightening block; 13. Front plug hole; 14. Guide block; 15. Tail transmission assembly; 16. Front transmission assembly; 17. Guide hole; 18. Tail cavity; 19. Front cavity; 20. Lateral support block; 21. Column; 22. Annular groove; 23. Drainage groove; 24. Receiving plate;

[0044] 201, linear guide; 202, linkage table; 203, slip ring;

[0045] 301, motor; 302, driving gear; 303- driven gear;

[0046] 401, feeding pipe; 402, bracket;

[0047] 801, expansion sleeve driving cylinder; 802, auxiliary clamping plate; 803, roller; 804, screw; 805, screw head;

[0048] 1501, rear oblique rod; 1502, axial transmission rod;

[0049] 1601. front diagonal rod; 1602. return spring. DETAILED DESCRIPTION

[0050] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0051] See also Figure 1-10The present invention describes the above technical solution in detail through the following embodiments:

[0052] A bearing ring grinding device comprises a grinding table 1, a pushing mechanism 2, a rotating driving mechanism 3, a feeding mechanism 4, a feeding column 6, a sleeve expansion head 7, a sleeve expansion driving assembly 8 and an outer cylindrical grinding mechanism 9, wherein the pushing mechanism 2, the rotating driving mechanism 3, the feeding mechanism 4 and the sleeve expansion driving assembly 8 are all arranged on the grinding table 1;

[0053] The expansion sleeve 7 is arranged at the end of the feeding column 6, and the diameter of the expansion sleeve 7 is adapted to the aperture of the bearing ring. The front end of the feeding column 6 is rotatably connected to the pushing mechanism 2, and the rotary drive mechanism 3 is connected to the feeding column 6;

[0054] The feeding mechanism 4 has a feeding channel 5 for arranging and moving the bearing rings, and the feeding mechanism 4 has a circular hole 10 for the feeding column 6, the expansion sleeve head 7 and the bearing ring to pass through and communicate with the feeding channel 5. The circular hole 10 is coaxial with the bearing ring at the end of the feeding channel 5, the circular hole 10 is coaxial with the expansion sleeve head 7, the diameter of the expansion sleeve head 7 is adapted to the inner diameter of the bearing ring, the diameter of the feeding column 6 is larger than the diameter of the expansion sleeve head 7 and smaller than the outer diameter of the bearing ring, and the aperture of the circular hole 10 is adapted to the outer diameter of the bearing ring;

[0055] At least three tail plug holes 11 are arranged at equal intervals along the circumferential direction on the side of the expansion sleeve head 7, and a tension block 12 is inserted into the tail plug hole 11. Front plug holes 13 are arranged on both sides of the feeding column 6, and a guide block 14 is inserted into the front plug hole 13;

[0056] A rear transmission assembly 15 connected to a plurality of tensioning blocks 12 is provided in the expansion sleeve head 7, and a front transmission assembly 16 connected to the guide blocks 14 on both sides is provided in the feeding column 6;

[0057] The pushing mechanism 2 pushes the feeding column 6 to move the bearing ring on the sleeve expansion head 7 to the grinding position of the cylindrical grinding mechanism 9, and moves the guide block 14 to the sleeve expansion drive assembly 8;

[0058] The expansion sleeve driving assembly 8 pushes the guide blocks 14 on both sides of the feeding column 6 radially, so that the front transmission assembly 16 pushes the tensioning block 12 outward with the help of the rear transmission assembly 15, so that the bearing ring on the expansion sleeve head 7 is tightened and clamped;

[0059] The rotary drive mechanism 3 is used to drive the feeding column 6 to rotate when the outer cylindrical grinding mechanism 9 grinds the outer cylindrical surface of the bearing ring.

[0060] The outer diameter of the expansion sleeve 7 is slightly smaller than the aperture of the bearing ring, so that the expansion sleeve 7 can be inserted into the hole of the bearing ring. The outer diameter of the feeding column 6 is larger than the aperture of the bearing ring, so that when the expansion sleeve 7 and the end of the feeding column 6 pass through the circular hole 10, the bearing ring stays on the expansion sleeve 7 and contacts the end of the feeding column 6. The outer diameter of the feeding column 6 is smaller than the outer diameter of the bearing ring because, when multiple bearing rings in the feeding channel 5 are arranged in a close-fitting manner, if the outer diameter of the feeding column 6 is larger than the outer diameter of the bearing ring, the feeding column 6 will be blocked by another bearing ring and cannot pass through the circular hole 10.

[0061] Specifically, a plurality of bearing rings are arranged in the feeding channel 5 and are sequentially fed to one end of the circular hole 10. When the pushing mechanism 2 pushes the feeding column 6 and the expansion head 7 through the circular hole 10, the bearing ring aligned with the circular hole 10 is sleeved on the expansion head 7. Since the outer diameter of the feeding column 6 is larger than the outer diameter of the expansion head 7, when the end of the feeding column 6 and the expansion head 7 pass through the circular hole 10, the bearing ring will stay on the expansion head 7 under the obstruction of the end of the feeding column 6. When the bearing ring moves to the grinding position of the outer cylindrical grinding mechanism 9, at this time, the expansion drive assembly 8 pushes the guide block 14 to move inward, so that the guide block 14 pushes the tension block 12 outward with the help of the tail transmission assembly 15 and the front transmission assembly 16, so that the plurality of tension blocks 12 will be tightened and clamped from the bearing ring. Subsequently, the rotary drive mechanism 3 drives the feed column 6 to rotate, and at the same time, the outer cylindrical grinding mechanism 9 grinds the outer cylindrical surface of the bearing ring. When the grinding is completed, the expansion drive assembly 8 and the guide block 14 are reset, so that the multiple tensioning blocks 12 release the bearing ring.

[0062] After the bearing ring is released, since the outer diameter of the bearing ring is larger than the outer diameter of the feeding column, the expansion drive assembly 8 can drive its moving parts to move to the side or front of the bearing ring, so that the moving parts of the expansion drive assembly 8 clamp the bearing ring, or block the bearing ring from the front of the bearing ring, so that the released bearing ring falls from the expansion head 7 during the resetting process of the feeding column 6 and the expansion head 7.

[0063] It should be noted that the cylindrical grinding mechanism 9 can be a handheld grinding device or an automated grinding device, such as a robotic arm equipped with a grinding mechanism. The specific structure of the cylindrical grinding mechanism 9 is not limited here. The specific structure of the cylindrical grinding mechanism 9 can refer to the existing technology and be selected and designed according to actual usage requirements.

[0064] Among them, the feeding mechanism 4 includes a feeding tube 401 provided with a feeding channel 5 and a circular hole 10, and a bracket 402 connecting the feeding tube 401 and the grinding table 1. The end of the feeding tube 401 provided with the circular hole 10 is tilted downward, so as to realize downward transportation by relying on the dead weight of the bearing ring, and the aperture of the circular hole 10 is adapted to the outer diameter of the bearing ring. When the bearing ring enters the circular hole 10, the bearing ring is limited to be coaxial with the circular hole 10.

[0065] The tail transmission assembly 15 includes a rear oblique rod 1501 and an axial transmission rod 1502. The expansion sleeve head 7 is provided with a guide hole 17 for the axial transmission rod 1502 to slide and insert. The end of the expansion sleeve head 7 is provided with a tail cavity 18 connected to the guide hole 17.

[0066] The front ends of the plurality of rear oblique rods 1501 are hinged to the end of the axial transmission rod 1502 , and the plurality of rear oblique rods 1501 are tiltedly arranged with their front ends close to each other, and the front ends of the axial transmission rod 1502 are connected to the front transmission assembly 16 .

[0067] By pushing and pulling the axial transmission rod 1502 back and forth axially between the feeding column 6 and the expansion sleeve head 7, the angle of the rear diagonal rod 1501 changes, so that the rear diagonal rod 1501 pushes out and pulls back the tensioning block 12. When multiple tensioning blocks 12 are pushed out, multiple tensioning blocks 12 tighten and clamp the bearing ring from the inner side of the bearing ring.

[0068] Among them, the front transmission assembly 16 includes a front inclined rod 1601 and a return spring 1602, and the end of the feeding column 6 is provided with a front cavity 19 connecting the guide hole 17 and the front plug hole 13. One end of the front inclined rod 1601 is hinged to the guide block 14, and the other end is hinged to the front end of the axial transmission rod 1502. The front end of the front inclined rod 1601 connected to the guide block 14 is always tilted away from the outside of the axial transmission rod 1502. When the guide block 14 is pushed inward by the expansion sleeve driving assembly 8, the front inclined rod 1601 gradually tends to be parallel to the axial transmission rod 1502. In this process, the front inclined rod 1601 pushes the axial transmission rod 1502 to push out the tension block 12, and vice versa, the tension block 12 is pulled back. A lateral support block 20 is provided in the front cavity 19 and between the front insertion holes 13 on both sides. The reset spring 1602 is provided on the side of the limit plate 402 and is connected to the guide block 14 on the same side. When the expansion sleeve driving assembly 8 is separated from the guide block 14, the guide block 14 drives the front oblique rod 1601 to reset under the elastic force of the reset spring 1602, so that the front oblique rod 1601 pulls the axial transmission rod 1502, so that the tensioning block 12 releases the bearing ring.

[0069] The expansion sleeve driving assembly 8 includes an expansion sleeve driving cylinder 801, an auxiliary clamping plate 802 and a roller 803. Columns 21 are provided on both sides of the grinding table 1. The feeding column 6 and the expansion sleeve head 7 with a bearing ring can reciprocate between the columns 21 on both sides. The inner sides of the columns 21 on both sides are provided with expansion sleeve driving cylinders 801.

[0070] The outer side of the auxiliary clamping plate 802 is connected to the expansion sleeve driving cylinder 801, and the expansion sleeve driving cylinder 801 pushes the guide block 14 to move into the front cavity 19 with the help of the auxiliary clamping plate 802;

[0071] The inner side of the auxiliary splint 802 is arc-shaped, and the diameter of the circle corresponding to the arc-shaped contour on the inner side of the auxiliary splint 802 is the same as the diameter of the feeding column 6. The top and bottom of the auxiliary splint 802 extend along the circumference of the feeding column 6, so that the expansion sleeve driving cylinders 801 on both sides can clamp the feeding column 6 with the help of the auxiliary splint 802 during the process of grinding the outer circle of the bearing ring by the external cylindrical grinding mechanism 9. The roller 803 is rotatably arranged on the inner side of the auxiliary splint 802, so that the feeding plate can be rotated by the roller 803 when it is clamped by the auxiliary splints 802 on both sides.

[0072] In addition, the expansion sleeve drive assembly 8 also includes a screw 804 and a screw head 805. The inner side of the auxiliary clamp 802 is provided with a threaded hole that matches the screw 804. The screw head 805 is arranged at the end of the screw 804. The auxiliary clamp 802 pushes the guide block 14 with the help of the screw 804 and the screw head 805. By adjusting the length of the exposed part of the screw 804, the auxiliary clamp 802 clamps the feeding column 6 while the tensioning block 12 also tightens and clamps the bearing ring at the same time.

[0073] When the bearing ring is released by the multiple tensioning blocks 12, the expansion sleeve driving cylinder 801 drives the auxiliary clamping plate 802 away from the feeding column 6 until the screw head 805 is located in front of the bearing ring. Therefore, when the feeding column 6 and the expansion sleeve head 7 are reset, the bearing ring falls from the expansion sleeve head under the obstruction of the screw head 805, thereby realizing the unloading of the bearing ring. Subsequently, the expansion sleeve driving cylinder 801 further drives the auxiliary clamping plate 802 away from the feeding column 6, so that the feeding column 6 and the screw head 805 are reset to the initial position where the distance between the screw heads 805 on both sides is greater than the outer diameter of the bearing ring.

[0074] It should be noted that the diameter of the circle where the outer diameter of the guide blocks 14 on both sides is located is preferably smaller than the outer diameter of the bearing ring, so that when the guide blocks 14 are fully reset, the screw head 805 can still intercept the bearing ring in front of the bearing ring.

[0075] Among them, the pushing mechanism 2 includes a linear guide rail 201, a linkage table 202 and a ring 203. The side wall at the front end of the feeding column 6 is provided with an annular groove 22 for inserting the ring 203. The ring 203 is rotatably connected to the feeding column 6. The linkage table 202 is slidably set on the grinding table 1. The pushing mechanism 2 is set on the grinding table 1 and connected to the linkage table 202. The ring 203 is set on the linkage table 202.

[0076] Among them, the rotating drive mechanism 3 includes a motor 301, a driving gear 302 and a driven gear 303. The driven gear 303 is set at the front end of the feeding column 6 through shaft rotation, and the driven gear 303 is coaxially set with the feeding column 6. The motor 301 is set on the linkage table 202, and the driving gear 302 is set on the motor 301 and meshed with the driven gear 303. The motor 301 drives the feeding column 6 to rotate through the driving gear 302 and the driven gear 303.

[0077] In addition, a receiving plate 24 for receiving the bearing ring is provided on the grinding table 1 and between the two side columns 21, and a drainage groove 23 for receiving the coolant is provided on the upper surface of the receiving plate 24, and the width of the drainage groove 23 is less than the axial length of the bearing ring. When the bearing ring falls from the expansion sleeve 7, the receiving plate 24 receives the bearing ring, and the coolant used in the grinding process falls on the receiving plate 24 and enters the drainage groove 23. The drainage groove 23 can be provided in multiple pieces along the width direction of the receiving plate 24, or the receiving plate 24 is inclined or concave at both sides toward the middle drainage groove 23, so that the coolant on the receiving plate 24 flows into the drainage groove 23. In addition, the receiving plate 24 and the drainage groove 23 are both inclined downward at the ends away from each other, so that the bearing ring and the coolant are output from the two ends of the receiving plate 24, respectively, so as to facilitate the collection and treatment of the two.

[0078] It is known from common technical knowledge that the present application can be implemented by other embodiments that do not deviate from its spirit or essential features. Therefore, the above disclosed embodiments are only illustrative in all respects and are not exclusive. All changes within the scope of the present application or within the scope equivalent to the present application are included in the present application.

Claims

1. A bearing ring grinding device, characterized in that: The invention comprises a grinding table (1), a pushing mechanism (2), a rotating drive mechanism (3), a feeding mechanism (4), a feeding column (6), a sleeve expansion head (7), a sleeve expansion drive assembly (8) and an external cylindrical grinding mechanism (9), wherein the pushing mechanism (2), the rotating drive mechanism (3), the feeding mechanism (4) and the sleeve expansion drive assembly (8) are all arranged on the grinding table (1); The expansion sleeve (7) is arranged at the end of the feeding column (6), the diameter of the expansion sleeve (7) is adapted to the aperture of the bearing ring, the front end of the feeding column (6) is rotatably connected to the pushing mechanism (2), and the rotary drive mechanism (3) is connected to the feeding column (6); The feeding mechanism (4) has a feeding channel (5) for arranging and moving the bearing rings, and the feeding mechanism (4) has a circular hole (10) connected to the feeding channel (5) for the feeding column (6), the expansion head (7) and the bearing ring to pass through, the circular hole (10) is coaxial with the bearing ring at the end of the feeding channel (5), the circular hole (10) is coaxial with the expansion head (7), the diameter of the expansion head (7) is adapted to the inner diameter of the bearing ring, the diameter of the feeding column (6) is larger than the diameter of the expansion head (7) and smaller than the outer diameter of the bearing ring, and the aperture of the circular hole (10) is adapted to the outer diameter of the bearing ring; At least three tail plug holes (11) are arranged at equal intervals along the circumferential direction on the side surface of the expansion sleeve head (7), and a tension block (12) is inserted into the tail plug hole (11). Front plug holes (13) are arranged on both sides of the feeding column (6), and a guide block (14) is inserted into the front plug hole (13); The expansion sleeve head (7) is provided with a rear transmission assembly (15) connected to a plurality of tensioning blocks (12), and the feeding column (6) is provided with a front transmission assembly (16) connected to the guide blocks (14) on both sides; The pushing mechanism (2) pushes the feeding column (6) to move the bearing ring on the expansion sleeve head (7) to the grinding position of the external cylindrical grinding mechanism (9), and moves the guide block (14) to the expansion sleeve driving assembly (8); The expansion sleeve driving assembly (8) radially pushes the guide blocks (14) on both sides of the feeding column (6), so that the front transmission assembly (16) pushes the tensioning block (12) outward with the help of the rear transmission assembly (15), so that the bearing ring on the expansion sleeve head (7) is tightened and clamped; The rotary drive mechanism (3) is used to drive the feeding column (6) to rotate when the outer circle grinding mechanism (9) grinds the outer circle of the bearing ring.

2. A bearing ring grinding device according to claim 1, characterized in that: The feeding mechanism (4) comprises a feeding pipe (401) provided with a feeding channel (5) and a circular hole (10), and a bracket (402) connecting the feeding pipe (401) and the grinding table (1), wherein the end of the feeding pipe (401) provided with the circular hole (10) is arranged to be tilted downward.

3. A bearing ring grinding device according to claim 1, characterized in that: The tail transmission assembly (15) comprises a rear oblique rod (1501) and an axial transmission rod (1502); the expansion sleeve (7) is provided with a guide hole (17) for the axial transmission rod (1502) to be slidably inserted, and a tail cavity (18) communicating with the guide hole (17) is provided at the end of the expansion sleeve (7); The front ends of the plurality of rear oblique rods (1501) are hinged to the end of the axial transmission rod (1502), and the plurality of rear oblique rods (1501) are arranged tilted with their front ends close to each other, and the front end of the axial transmission rod (1502) is connected to the front transmission assembly (16).

4. A bearing ring grinding device according to claim 3, characterized in that: The front transmission assembly (16) comprises a front oblique rod (1601) and a return spring (1602); a front cavity (19) communicating with the guide hole (17) and the front plug hole (13) is provided at the end of the feeding column (6); one end of the front oblique rod (1601) is hinged to the guide block (14), and the other end is hinged to the front end of the axial transmission rod (1502); the front end of the front oblique rod (1601) connected to the guide block (14) is always tilted away from the outside of the axial transmission rod (1502); A lateral support block (20) is provided in the front cavity (19) and between the front insertion holes (13) on both sides. The return spring (1602) is provided on the side of the limit plate (402) and is connected to the guide block (14) on the same side.

5. A bearing ring grinding device according to claim 4, characterized in that: The expansion sleeve driving assembly (8) comprises an expansion sleeve driving cylinder (801), an auxiliary clamping plate (802) and a roller (803); columns (21) are arranged on both sides of the grinding table (1); the feeding column (6) and the expansion sleeve head (7) with a bearing ring can reciprocate between the columns (21) on both sides; and the inner sides of the columns (21) on both sides are provided with expansion sleeve driving cylinders (801); The outer side of the auxiliary clamping plate (802) is connected to the expansion sleeve driving cylinder (801), and the expansion sleeve driving cylinder (801) drives the guide block (14) to move into the front cavity (19) with the help of the auxiliary clamping plate (802); The inner side of the auxiliary clamping plate (802) is arc-shaped, and the diameter of the circle corresponding to the arc-shaped contour on the inner side of the auxiliary clamping plate (802) is the same as the diameter of the feeding column (6). The top and bottom of the auxiliary clamping plate (802) extend along the circumference of the feeding column (6), so that the expansion sleeve driving cylinders (801) on both sides can clamp the feeding column (6) with the help of the auxiliary clamping plate (802) during the process of grinding the outer circle of the bearing ring by the external cylindrical grinding mechanism (9). The roller (803) is rotatably arranged on the inner side of the auxiliary clamping plate (802), so that the feeding plate can be rotated by the roller (803) when clamped by the auxiliary clamping plates (802) on both sides.

6. A bearing ring grinding device according to claim 5, characterized in that: The expansion sleeve driving assembly (8) also includes a screw rod (804) and a screw rod head (805); a threaded hole matching the screw rod (804) is provided on the inner side of the auxiliary clamping plate (802); the screw rod head (805) is arranged at the end of the screw rod (804); the auxiliary clamping plate (802) pushes the guide block (14) with the help of the screw rod (804) and the screw rod head (805).

7. A bearing ring grinding device according to claim 1, characterized in that: The pushing mechanism (2) comprises a linear guide rail (201), a linkage platform (202) and a collar (203); a side wall at the front end of the feeding column (6) is provided with an annular groove (22) for inserting the collar (203); the collar (203) is rotatably connected to the feeding column (6); the linkage platform (202) is arranged on the grinding table (1) via the linear guide rail (201); and the collar (203) is arranged on the linkage platform (202).

8. A bearing ring grinding device according to claim 1, characterized in that: The rotary drive mechanism (3) comprises a motor (301), a driving gear (302) and a driven gear (303); the driven gear (303) is arranged at the front end of the feeding column (6) through shaft rotation, and the driven gear (303) is arranged coaxially with the feeding column (6); the motor (301) is arranged on the linkage platform (202), and the driving gear (302) is arranged on the motor (301) and meshedly connected with the driven gear (303).

9. A bearing ring grinding device according to claim 5, characterized in that: A receiving plate (24) for receiving the bearing ring is provided on the grinding table (1) and between the two side columns (21), and a drainage groove (23) for receiving cooling liquid is provided on the upper surface of the receiving plate (24), and the width of the drainage groove (23) is smaller than the axial length of the bearing ring.

10. A bearing ring grinding device according to claim 9, characterized in that: The ends of the receiving plate (24) and the drainage groove (23) that are away from each other are both tilted downward so that the bearing ring and the coolant are respectively output from the two ends of the receiving plate (24).

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