Polishing device for machining inner ring and outer ring of bearing

Abstract

The invention relates to the technical field of bearing machining, and discloses a polishing device for bearing inner and outer ring machining. A supporting plate perpendicular to a base is arranged on the upper portion of the base, and a supporting driving roller set used for vertically supporting a bearing ring and driving the bearing ring to rotate is arranged on the lower portion of the front face of the supporting plate; the upper portion of the front face of the supporting plate is provided with a limiting driven roller set which is matched with the supporting driving roller set and used for clamping, rotating and driving the bearing ring. A sliding groove C parallel to the sliding groove A is formed between the sliding groove A and the movable groove. A first polishing mechanism used for polishing the inner ring surface of the bearing ring and a second polishing mechanism used for polishing the outer ring surface of the bearing ring are arranged in the sliding grooves C; according to the bearing ring polishing device, the bearing rings can be efficiently positioned, clamped and driven in batches, the inner ring faces and the outer ring faces of the bearing rings in batches can be fully and efficiently polished at the same time, and the production and machining efficiency and quality of the bearing rings are greatly improved.

Description

Technical Field

[0001] The present invention relates to the technical field of bearing processing, and particularly to a grinding device for processing the inner and outer rings of a bearing. Background Art

[0002] In the field of mechanical engineering, as one of the key components, the performance of a bearing directly affects the operating efficiency and lifespan of the entire mechanical equipment. In the bearing structure, the inner ring and the outer ring (collectively referred to as the raceway) are two crucial components, which respectively play a supporting and guiding role to ensure that the rolling elements (such as steel balls or rollers) can roll smoothly inside the bearing. However, in the production and manufacturing process, how to process these raceways efficiently and precisely has become a major challenge.

[0003] When grinding and processing the bearing raceway, not only the end face of the raceway needs to be ground, but also its inner and outer ring surfaces need to be ground. The grinding of the inner and outer ring surfaces of the bearing raceway is to ensure that the bearing can operate smoothly and precisely during work, and has higher precision and service life. However, the traditional bearing raceway grinding process often relies on manual operation or semi-automatic equipment, and there are still the following deficiencies when grinding the inner and outer ring surfaces of the raceway: 1. Existing grinding equipment often can only perform single grinding treatment on either the inner ring surface or the outer ring surface of the raceway, which leads to repeated positioning, clamping, and grinding operations on the raceway in order to achieve grinding of the inner and outer ring surfaces during the grinding process, greatly affecting the grinding efficiency; 2. When existing grinding equipment clamps and fixes bearing raceways with different diameter sizes, complex adjustments or even replacement of different tooling fixtures are often required, greatly increasing the work difficulty and time cost; 3. Existing grinding equipment often can only grind and process bearing raceways one by one, and cannot achieve batch clamping, limiting, and grinding treatment of bearing raceways, resulting in low grinding efficiency; 4. Existing grinding equipment often clamps and fixes the bearing raceway, and mainly relies on adjusting the grinding mechanism to achieve grinding of the bearing raceway. This leads to the situation that if there is a deviation in the adjustment of the grinding mechanism, it is extremely easy to cause irreversible wear to the bearing raceway, resulting in the scrapping of the bearing raceway; Therefore, there is an urgent need for a grinding device for processing the inner and outer rings of a bearing that can overcome the above deficiencies. Summary of the Invention

[0004] In order to overcome the deficiencies in the background art, the present invention discloses a grinding device for processing the inner and outer rings of a bearing. The present invention can not only perform batch, efficient positioning, clamping, and driving on the bearing raceway, but also simultaneously perform sufficient and efficient grinding treatment on the inner and outer ring surfaces of a batch of bearing raceways, greatly improving the production and processing efficiency and quality of the bearing raceway.

[0005] To achieve the above object, the present invention adopts the following technical solutions: A grinding device for processing the inner and outer rings of a bearing, comprising a base. A support plate perpendicular to the base is provided on the upper part of the base. A chute A is provided at the lower part of the front surface of the support plate along the width direction of the support plate and penetrates the support plate. A support driving roller set for vertically supporting the bearing race and driving the bearing race to rotate is arranged in the chute A; The support driving roller set includes two sliders A installed in the chute A and capable of sliding and adjusting synchronously towards or away from each other along the chute A. Rotating rollers A parallel to the base are rotatably installed on the front surfaces of the two sliders A. A driving mechanism for driving the two rotating rollers A to rotate synchronously in the same direction is provided on the back surfaces of the two sliders A; An activity slot penetrating the support plate is provided at the upper part of the front surface of the support plate. An activity block capable of lifting and adjusting is arranged in the activity slot. A chute B penetrating the activity block and parallel to the chute A is provided on the front surface of the activity block. A limit driven roller set for clamping and rotating and driving the bearing race in cooperation with the support driving roller set is arranged in the chute B; A chute C parallel to the chute A is provided between the chute A and the activity slot. A first grinding mechanism for grinding the inner ring surface of the bearing race and a second grinding mechanism for grinding the outer ring surface of the bearing race are respectively arranged in the chute C; The first grinding mechanism includes two first sliders located in the middle of the support driving roller set and capable of sliding and adjusting synchronously towards or away from each other along the chute C. First grinding shafts parallel to the base are provided on the front surfaces of the two first sliders; The second grinding mechanism includes two second sliders respectively located on both sides of the support driving roller set and capable of sliding and adjusting synchronously towards or away from each other along the chute C. Second grinding shafts parallel to the base are provided on the front surfaces of the two second sliders.

[0006] Further, a bidirectional lead screw A arranged along the axial direction of the chute A is rotatably installed in the chute A. The two ends of the bidirectional lead screw A respectively penetrate the two sliders A and are in threaded driving cooperation with the two sliders A. One end of the bidirectional lead screw A penetrates the chute A and is connected to a driving device.

[0007] Further, the driving mechanism includes a motor, a driven gear, a transmission gear and a connecting rod. Extension shafts coaxially arranged with the rotating roller A on the front surface of the corresponding slider A and rotating synchronously are provided on the back surfaces of the two sliders A. Driven gears coaxially arranged are provided at the ends of the extension shafts. A transmission gear that can always mesh with the two driven gears as the two sliders A move towards or away from each other is provided between the two driven gears. A connecting shaft parallel to the extension shaft is provided on the end face of the transmission gear. Connecting rods are hinged between the two extension shafts and the connecting shaft respectively. A mounting seat is provided on the back surface of any one of the sliders A. A motor is provided on the mounting seat. A driving gear meshing with the adjacent driven gear is provided at the output end of the motor.

[0008] Furthermore, the limiting driven roller group includes two sliders B which correspond to the two sliders A one by one and can move synchronously with the corresponding sliders A in the same direction. The front sides of the two sliders B are rotatably installed with rotating rollers B which correspond to the two rotating rollers A one by one in parallel.

[0009] Furthermore, the back of slider B is provided with an epitaxial plate parallel to the base, the surface of the epitaxial plate is provided with a limit opening penetrating the epitaxial plate, and the back of slider A corresponding to slider B is provided with a driving rod movably penetrating the epitaxial plate through the limit opening.

[0010] Furthermore, a first bidirectional screw rod arranged along the axial direction of the slide groove C is rotatably installed on one side of the slide groove C close to the front side of the support plate. Two first sliding blocks are respectively driven by threads at both ends of the first bidirectional screw rod. One end of the first bidirectional screw rod passes through the slide groove C, and a first rotating handle is provided at its end.

[0011] Furthermore, a second bidirectional screw rod arranged along the axial direction of the slide groove C is rotatably installed on one side of the slide groove C close to the back side of the support plate, and two second sliding blocks are respectively driven and cooperated with the threaded ends of the second bidirectional screw rod. One end of the second bidirectional screw rod passes through the slide groove C, and a second handle is provided at its end. A second through hole is provided on the side of the second sliding block, which corresponds to the first bidirectional screw rod and is clearance-matched with the first bidirectional screw rod.

[0012] Furthermore, an adjusting screw is rotatably installed on one side of the inner cavity of the movable groove, which is perpendicular to the base and cooperates with the threaded drive of the movable block. The upper end of the adjusting screw passes through the movable groove and is connected to the driving device. A guide rod is provided on the other side of the inner cavity of the movable groove, which is parallel to the adjusting screw and is used to horizontally limit the movable block.

[0013] Furthermore, the first grinding shaft and the second grinding shaft are both hollow structures, and the first grinding shaft and the second grinding shaft are provided with a plurality of spray holes arranged at intervals along their axial direction on the side facing the bearing ring. The first grinding shaft and the second grinding shaft are open structures at one end away from the support plate, and a sealing cover is installed in the opening. The sealing cover is provided with a connecting pipe which is connected to the injection device and injects coolant into the first grinding shaft and the second grinding shaft.

[0014] Furthermore, two limit grinding rings are sleeved on the roller body of the rotating roller A, which are coaxially arranged with the rotating roller A and are used to limit the end faces of the bearing rings at both ends. The front side of the slider A is rotatably installed with a double screw B which is parallel to the rotating roller A and is used to adjust the distance between the two limit grinding rings.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows: by providing a support driving roller group capable of adjusting the spacing, adaptive adjustment can be performed according to the diameter of the bearing ring, which can not only meet the support and rotation drive requirements for bearing rings of different diameters, but also center the bearing ring, providing strong support for subsequent precise and efficient grinding; By setting up a driving mechanism and utilizing the cooperation of a connecting rod and a transmission gear, during the process of adjusting the interval between the two rotating rollers A, both can be driven to rotate synchronously and in the same direction by one motor, providing strong support for the subsequent rotation drive of the bearing; By setting up a limiting driven roller group, it can cooperate with the driving roller group to support and realize efficient and convenient clamping and rotation drive for the bearing race, so as to ensure that the bearing race can rotate stably, providing strong support for the subsequent grinding of the bearing race; By setting up a first grinding mechanism with adjustable spacing, when grinding the inner ring surface of bearing races with different diameters, both of the two first grinding shafts can effectively contact both sides of the inner ring surface of the bearing race, ensuring the grinding quality of the inner ring surface of the bearing race; By setting up a second grinding mechanism with adjustable spacing, when grinding the outer ring surface of bearing races with different diameters, both of the two second grinding shafts can effectively contact both sides of the outer ring surface of the bearing race, ensuring the grinding quality of the outer ring surface of the bearing race; By setting up a limiting ring, it can not only limit the bearing race on the supporting driving roller group to ensure its stable rotation in a fixed position, but also assist in grinding the end face of the bearing race; Through the cooperation of the supporting driving roller group, the limiting driven roller group, the first grinding mechanism and the second grinding mechanism, the present invention can not only perform batch and efficient positioning, clamping and driving for the bearing race, but also simultaneously perform sufficient and efficient grinding treatment on the inner and outer ring surfaces of a batch of bearing races, greatly improving the production and processing efficiency and quality of the bearing race and reducing the operation difficulty of the staff; the structure of the present invention is simple, the cost is low, the maintenance cost is greatly reduced, and it has high promotion value and practical value. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic structural view of the present invention; Figure 2 is a rear view of the present invention; Figure 3 is a schematic structural view of the support plate of the present invention; Figure 4 is a schematic structural view of the supporting driving roller group of the present invention; Figure 5 is a schematic structural view of the limiting driven roller group of the present invention; Figure 6 is a schematic structural view of the chute C of the present invention; Figure 7 is a schematic structural view of the first grinding mechanism of the present invention; Figure 8 is a schematic structural view of the second grinding mechanism of the present invention; Figure 9Schematic structural diagram of the drive mechanism of the present invention; Figure 10 Schematic diagram of the connecting rod connection state of the present invention; Figure 11 Schematic structural diagram of the drive rod of the present invention; Figure 12 Another schematic structural diagram of the rotating roller A of the present invention; Figure 13 Schematic diagram of the working state of the present invention.

[0017] In the figure: 1, base; 2, support plate; 3, chute A; 4, chute C; 5, movable groove; 6, movable block; 7, limit driven roller group; 8, first grinding mechanism; 9, second grinding mechanism; 10, support drive roller group; 11, drive mechanism; 12, chute B; 13, adjusting screw; 14, guide rod; 15, bidirectional screw A; 16, slider A; 17, rotating roller A; 18, screw hole A; 19, slider B; 20, through hole; 21, rotating roller B; 22, second bidirectional screw; 23, second turning handle; 24, first bidirectional screw; 25, first turning handle; 26, first sliding block; 27, first screw hole; 28, first grinding shaft; 29, spray hole; 30, sealing cover; 31, connecting pipe; 32, second sliding block; 33, second screw hole; 34, second through hole; 35, second grinding shaft; 36, mounting seat; 37, motor; 38, driving gear; 39, driven gear; 40, extension shaft; 41, transmission gear; 42, connecting rod; 43, connecting shaft; 44, drive rod; 45, extension plate; 46, limit through port; 47, limit grinding ring; 48, bidirectional screw B. Detailed implementation manners

[0018] Next, the technical solutions of the present invention will be described in conjunction with the drawings in the embodiments of the present invention. In the description, it should be understood that if there are terms such as "upper", "lower", "front", "rear", "left", "right", etc. indicating the orientation or positional relationship, they are only corresponding to the drawings of the present invention for the convenience of describing the present invention, rather than indicating or implying that the device or element referred to must have a specific orientation.

[0019] Please refer to the attached specification Figures 1-13 , the present invention provides a technical solution: Embodiment 1, a grinding device for processing the inner and outer rings of bearings, including a base 1. A support plate 2 perpendicular to the base 1 is provided on the upper part of the base 1. A chute A 3 is provided at the lower part of the front surface of the support plate 2 along the width direction of the support plate 2 and penetrates through the support plate 2. A support drive roller group 10 for vertically supporting the bearing ring and driving the bearing ring to rotate is provided in the chute A 3; The support drive roller set 10 includes two sliders A16 installed in the chute A3 and capable of sliding synchronously towards or away from each other along the chute A3. Specifically, a bidirectional screw A15 arranged along the axial direction of the chute A3 is rotatably installed in the chute A3. Threaded holes A18 penetrating the sliders A16 are provided on the sides of the sliders A16. The two sliders A16 are both threadedly driven and connected to the two ends of the bidirectional screw A15 through the threaded holes A18. One end of the bidirectional screw A15 penetrates the chute A3 and is connected to a driving device, and the driving device can be a driving motor or a handwheel. Rotating rollers A17 parallel to the base 1 are rotatably installed on the fronts of the two sliders A16. A driving mechanism 11 for driving the two rotating rollers A17 to rotate synchronously in the same direction is provided on the backs of the two sliders A16. The driving mechanism 11 includes a motor 37, a driven gear 39, a transmission gear 41, and a connecting rod 42. Extension shafts 40 coaxially arranged with and rotating synchronously with the rotating rollers A17 on the fronts of the corresponding sliders A16 are provided on the backs of the two sliders A16. Driven gears 39 coaxially arranged are provided at the ends of the extension shafts 40. A transmission gear 41 meshing with the two driven gears 39 is provided between the two driven gears 39. A connecting shaft 43 parallel to the extension shafts 40 is provided on the end face of the transmission gear 41. Connecting rods 42 are hingedly connected between the two extension shafts 40 and the connecting shaft 43 respectively. Specifically, the extension shafts 40 and the connecting shaft 43 are both cylindrical structures. Through holes adapted to the extension shafts 40 and the connecting shaft 43 are provided at both ends of the connecting rod 42. The connecting rod 42 is sleeved on the extension shaft 40 and the connecting shaft 43 respectively through the through holes at both ends. A mounting seat 36 is provided on the back of any one of the sliders A16. A motor 37 is provided on the mounting seat 36. A driving gear 38 meshing with the adjacent driven gear 39 is provided at the output end of the motor 37; When the two sliders A16 move synchronously towards each other, the distance between the two driven gears 39 decreases. As the driven gears 39 move, the ends of the two connecting rods 42 connected to the two extension shafts 40 will also move towards each other accordingly. Correspondingly, the other ends of the two connecting rods 42 connected to the connecting shaft 43 move away from each other, thereby driving the transmission gear 41 to move downward. On the contrary, when the two sliders A16 move synchronously away from each other, the distance between the two driven gears 39 increases, and the transmission gear 41 moves upward by using the connecting rod 42. In order to ensure that the two rotating rollers A17 can also be driven to rotate synchronously when at the maximum distance, the maximum distance between the two driven gears 39 is adapted to the diameter of the transmission gear 41; On the upper part of the front side of the support plate 2, there is an activity groove 5 penetrating through the support plate 2. Inside the activity groove 5, there is an activity block 6 that can be adjusted for lifting. Specifically, on one side of the inner cavity of the activity groove 5, an adjustment screw rod 13 perpendicular to the base 1 is rotatably installed. The adjustment screw rod 13 penetrates through the activity block 6 and is in threaded driving cooperation with the activity block 6. The upper end of the adjustment screw rod 13 penetrates through the activity groove 5 and is connected to a driving device. The driving device can be a driving motor or a handwheel. On the other side of the inner cavity of the activity groove 5, there is a guide rod 14 parallel to the adjustment screw rod 13. The guide rod 14 penetrates through the activity block 6 and is in clearance fit with the activity block 6. The guide rod 14 can ensure that the activity rod 5 remains horizontal during the lifting process; On the front side of the activity block 6, there is a chute B12 penetrating through the activity block 6 and parallel to the chute A3. Inside the chute B12, there is a limit driven roller group 7 that cooperates with the support driving roller group 10 and is used for clamping and rotationally driving the bearing race. Specifically, the limit driven roller group 7 includes two sliders B19 that can move synchronously in the same or opposite directions along the chute B12. The driving mode of the sliders B19 is the same as that of the sliders A16, and both are synchronously driven and adjusted by a bidirectional lead screw. On the front side of both sliders B19, there are rotationally installed rotating rollers B21 corresponding to the rotating rollers A17 one by one up and down; Between the chute A3 and the activity groove 5, there is a chute C4 parallel to the chute A3. Inside the chute C4, there are respectively a first grinding mechanism 8 for grinding the inner ring surface of the bearing race and a second grinding mechanism 9 for grinding the outer ring surface of the bearing race. Specifically, the first grinding mechanism 8 includes two first sliding blocks 26 located in the middle of the support driving roller group 10 and capable of sliding and adjusting synchronously in the same or opposite directions along the chute C4. On the front side of both first sliding blocks 26, there are first grinding shafts 28 parallel to the base 1; the second grinding mechanism 9 includes two second sliding blocks 32 located on both sides of the support driving roller group 10 and capable of sliding and adjusting synchronously in the same or opposite directions along the chute C4. On the front side of both second sliding blocks 32, there are second grinding shafts 35 parallel to the base 1; When grinding the bearing race, adjust the distance between the two rotating rollers A17 in the support driving roller group 10 and the distance between the two rotating rollers B21 in the limit driven roller group 7 according to the size of the bearing race, so that the two rotating rollers A17 and the two rotating rollers B21 correspond one by one up and down. Then, place multiple bearing races vertically between the two rotating rollers A17 in sequence. Since the two rotating rollers A17 are adjusted synchronously by the two sliders A16, the bearing race can always be placed in the middle of the support driving roller group 10. When placing the bearing race, both first grinding shafts 28 in the first grinding mechanism 8 pass through the bearing race. After the bearing race is placed, use the adjustment screw rod 13 to drive the activity block 6 to descend until the two rotating rollers B21 are pressed against both sides of the upper part of the bearing race, realizing the clamping and limiting of the bearing race; After the bearing ring is clamped and limited, first adjust the distance between the two first grinding shafts 28 so that they are in contact with both sides of the inner ring surface of the bearing ring, then adjust the distance between the two second grinding shafts 35 so that they are in contact with both sides of the outer ring surface of the bearing ring, and finally use the driving mechanism 11 to drive the two rotating rollers A17 to rotate, thereby driving the bearing ring to rotate accordingly. As the bearing ring rotates, the first grinding shaft 28 and the second grinding shaft 35 grind the inner and outer ring surfaces of the bearing ring.

[0020] In the first embodiment, in order to realize the synchronous adjustment of the two first grinding shafts 28 in the first grinding mechanism 8, a first bidirectional lead screw 24 arranged along the axial direction of the chute C4 is rotatably installed in the chute C4. A first screw hole 27 penetrating the first sliding block 26 is provided on the side surface of the first sliding block 26. The two first sliding blocks 26 are respectively in threaded cooperation with both ends of the first bidirectional lead screw 24 through the first screw hole 27. One end of the first bidirectional lead screw 24 penetrates the chute C4, and a first turning handle 25 is provided at its end. In order to realize the synchronous adjustment of the two second grinding shafts 35 in the second grinding mechanism 9 and not be interfered by the first grinding mechanism 8, the first bidirectional lead screw 24 is rotatably installed on one side of the chute C4 close to the front surface of the support plate 2, and a second bidirectional lead screw 22 arranged along the axial direction of the chute C4 is rotatably installed on one side of the chute C4 close to the back surface of the support plate 2. Second screw holes 33 penetrating the second sliding block 32 and in threaded cooperation with the second bidirectional lead screw 22 are respectively provided on the side surfaces of the two second sliding blocks 32. The two second sliding blocks 32 are in threaded cooperation with both ends of the second bidirectional lead screw 22 through the second screw holes 33. A second through hole 34 penetrating the second sliding block 32 and corresponding to the first bidirectional lead screw 24 is further provided on the side surface of the second sliding block 43. The first bidirectional lead screw 24 passes through the second through hole 34 with a gap to penetrate the second sliding block 43, which enables the second sliding block 32 not to be affected by the first bidirectional lead screw 24 during movement. Correspondingly, the first bidirectional lead screw 24 also does not drive the second sliding block 32 to move during rotation. One end of the second bidirectional lead screw 22 penetrates the chute C4, and a second turning handle 23 is provided at its end.

[0021] Embodiment 2: During the process of clamping and rotationally driving the bearing ring, in order to ensure the stability of the bearing ring, the two rotating rollers A17 in the support driving roller group 10 should be vertically aligned with the two rotating rollers B21 in the limiting driven roller group 7 one by one. In order to ensure that they always maintain vertical alignment during the adjustment of the support driving roller group 10 and the limiting driven roller group 7, the two sliders B19 in the chute B12 can move synchronously and in the same direction following the two sliders A16. Specifically, an extension plate 45 parallel to the base 1 is provided on the back of the slider B19, and a limiting through hole 46 penetrating the extension plate 45 is provided on the surface of the extension plate 45. A driving rod 44 that passes through the extension plate 45 through the limiting through hole 46 is provided on the back of the slider A16 corresponding to the slider B19. With the connection of the driving rod 44, while enabling the slider B19 to always move synchronously and in the same direction as the slider A16, it will not affect the lifting adjustment of the subsequent movable block 6. In order to ensure that the two sliders B19 in the chute B12 can always maintain horizontal and stable sliding adjustment, a cross bar arranged along the axial direction of the chute B12 is provided in the chute B12. A through hole 20 penetrating the slider B19 and corresponding to the cross bar is provided on the side surface of the slider B19. The cross bar passes through the two sliders B19 through the through hole 20, and the two sliders B19 are limited by the cross bar, enabling the two sliders B19 to always maintain horizontal and stable sliding.

[0022] Embodiment 3: During the process of grinding the bearing ring, in order to improve the grinding efficiency and reduce the influence of the high temperature generated during grinding on the quality of the bearing ring, it is necessary to spray cutting fluid or coolant during grinding. In order to achieve the automatic spraying of the cutting fluid or coolant, both the first grinding shaft 28 and the second grinding shaft 35 are hollow structures. A plurality of spray holes 29 spaced along their axial directions are provided on one side of the first grinding shaft 28 and the second grinding shaft 35 facing the bearing ring. One end of the first grinding shaft 28 and the second grinding shaft 35 away from the support plate 2 is an open structure, and a sealing cover 30 is installed in its opening. A connecting pipe 31 connected to the injection device and injecting coolant into the first grinding shaft 28 and the second grinding shaft 35 is provided on the sealing cover 30. Specifically, the injection device can adopt a water pump. The water pump is used to suck the coolant and inject it into the inner cavities of the first grinding shaft 28 and the second grinding shaft 35, and then spray it out through the spray holes 29 to achieve the temperature reduction treatment of the grinding part.

[0023] In the fourth embodiment, during the process of driving the bearing ring to rotate, although the cooperation of the rotating roller A17 and the rotating roller B21 can effectively limit the bearing ring, it cannot ensure that the bearing ring always remains in place for rotation. If the bearing ring is displaced or collides, it will affect the subsequent grinding process. In order to limit the bearing ring, the rotating roller A17 is provided with two limit grinding rings 47 coaxially arranged with the rotating roller A17 and used to limit the end faces of the bearing ring at both ends. The limit grinding ring 47 can be slidably adjusted along the axial direction of the rotating roller A17, and the front side of the slider A16 is rotatably installed with a limit ring parallel to the rotating roller A17 and used to adjust the distance between the two limit rings 47. The adjustable double screw rod B48, specifically, the two ends of the bidirectional screw rod B48 are respectively threaded through two limit grinding rings 47. The bidirectional screw rod B48 can not only adjust the distance between the two limit grinding rings 47 to make them effectively interfere with the end faces of the two ends of the bearing ring, but also avoid the rotation of the limit grinding ring 47. According to actual needs, every two limit grinding rings 47 form a group, and multiple groups of limit grinding rings 47 can be set on the rotating roller A17. The corresponding bidirectional screw rod B48 is provided with a corresponding number of bidirectional thread segments. The limit grinding ring 47 can not only limit the bearing ring to prevent it from displacement, but also effectively grind the end face of the bearing ring as the bearing ring rotates.

[0024] The parts of the present invention that are not described in detail are prior art. It is obvious to those skilled in the art that the present invention is not limited to the details of the above-mentioned exemplary embodiments, and the present invention can be implemented in other specific forms without departing from the spirit or basic characteristics of the present invention. Therefore, no matter from which point of view, the above-mentioned embodiments should be regarded as exemplary and non-restrictive. The scope of the present invention is limited by the attached claims rather than the above description. Therefore, it is intended to include all changes within the meaning and scope of the equivalent elements of the claims in the present invention, and any figure marks in the claims should not be regarded as limiting the content of the claims involved.

Claims

1. A grinding device for machining inner and outer rings of a bearing, comprising a base (1), characterized in that: A support plate (2) perpendicular to the base (1) is provided on the upper part of the base (1); a slide groove A (3) arranged along the width direction of the support plate (2) and penetrating the support plate (2) is provided on the lower part of the front side of the support plate (2); a supporting driving roller group (10) for vertically supporting the bearing ring and driving the bearing ring to rotate is provided in the slide groove A (3); The supporting driving roller group (10) comprises two sliders A (16) installed in the slide groove A (3) and capable of sliding synchronously in opposite directions or opposite directions along the slide groove A (3); the front sides of the two sliders A (16) are both rotatably mounted with rotating rollers A (17) parallel to the base (1); the back sides of the two sliders A (16) are provided with driving mechanisms (11) for driving the two rotating rollers A (17) to rotate synchronously in the same direction; A movable groove (5) penetrating the support plate (2) is provided at the upper front portion of the support plate (2); a movable block (6) capable of being raised and lowered is provided in the movable groove (5); a slide groove B (12) penetrating the movable block (6) and parallel to the slide groove A (3) is provided on the front of the movable block (6); a limit driven roller group (7) cooperating with the supporting driving roller group (10) and used for clamping and rotating the bearing ring is provided in the slide groove B (12); A slide groove C (4) parallel to the slide groove A (3) is provided between the slide groove A (3) and the movable groove (5), and a first grinding mechanism (8) for grinding the inner annular surface of the bearing ring and a second grinding mechanism (9) for grinding the outer annular surface of the bearing ring are respectively provided in the slide groove C (4); The first grinding mechanism (8) comprises two first sliding blocks (26) located in the middle of the supporting driving roller group (10) and capable of synchronously sliding and adjusting in the same direction or in opposite directions along the slide groove C (4); the front faces of the two first sliding blocks (26) are each provided with a first grinding axis (28) parallel to the base (1); The second grinding mechanism (9) comprises two second sliding blocks (32) respectively located on both sides of the supporting driving roller group (10) and capable of synchronously sliding and adjusting in the same direction or in opposite directions along the slide groove C (4), and the front sides of the two second sliding blocks (32) are both provided with a second grinding axis (35) parallel to the base (1).

2. A grinding device for machining inner and outer rings of a bearing according to claim 1, characterized in that: A bidirectional screw rod A (15) is rotatably mounted in the slide groove A (3) and arranged along the axial direction of the slide groove A (3). Both ends of the bidirectional screw rod A (15) respectively penetrate the two sliders A (16) and are threadedly driven with the two sliders A (16). One end of the bidirectional screw rod A (15) penetrates the slide groove A (3) and is connected to a driving device.

3. A grinding device for machining inner and outer rings of a bearing according to claim 1, characterized in that: The driving mechanism (11) comprises a motor (37), a driven gear (39), a transmission gear (41) and a connecting rod (42). The back of the two sliders A (16) is provided with an extension shaft (40) which is coaxially arranged with the rotating roller A (17) on the front of the slider A (16) and rotates synchronously. The end of the extension shaft (40) is provided with a coaxially arranged driven gear (39). Between the two driven gears (39) is provided a transmission gear (41) which can always mesh with the two driven gears (39) as the two sliders A (16) slide towards or away from each other. The end surface of the transmission gear (41) is provided with a connecting shaft (43) which is parallel to the extension shaft (40). The two extension shafts (40) and the connecting shaft (43) are both hingedly connected with a connecting rod (42). The back of any slider A (16) is provided with a mounting seat (36). The mounting seat (36) is provided with a motor (37). The output end of the motor (37) is provided with a driving gear (38) which meshes with the adjacent driven gear (39).

4. A grinding device for machining inner and outer rings of a bearing according to claim 1, characterized in that: The position-limiting driven roller group (7) comprises two sliders B (19) which correspond to the two sliders A (16) one by one in the upper and lower directions and can move synchronously with the corresponding sliders A (16) in the same direction. The front faces of the two sliders B (19) are both rotatably mounted with rotating rollers B (21) which correspond to the two rotating rollers A (17) one by one in the upper and lower directions.

5. A grinding device for machining inner and outer rings of a bearing according to claim 4, characterized in that: The back of the slider B (19) is provided with an extension plate (45) parallel to the base (1); the plate surface of the extension plate (45) is provided with a limit opening (46) penetrating the extension plate (45); and the back of the slider A (16) corresponding to the slider B (19) is provided with a driving rod (44) movably penetrating the extension plate (45) via the limit opening (46).

6. A grinding device for machining inner and outer rings of a bearing according to claim 1, characterized in that: A first bidirectional screw rod (24) arranged along the axial direction of the slide groove C (4) is rotatably mounted on one side of the slide groove C (4) near the front side of the support plate (2). Two first sliding blocks (26) are respectively engaged with threads at both ends of the first bidirectional screw rod (24). One end of the first bidirectional screw rod (24) passes through the slide groove C (4) and a first rotating handle (25) is provided at its end.

7. A grinding device for machining inner and outer rings of a bearing according to claim 6, characterized in that: A second bidirectional screw rod (22) arranged along the axial direction of the slide groove C (4) is rotatably mounted on one side of the slide groove C (4) near the back side of the support plate (2); two second sliding blocks (32) are respectively threadedly driven with two ends of the second bidirectional screw rod (22); one end of the second bidirectional screw rod (22) passes through the slide groove C (4) and a second handle (23) is provided at the end thereof; a second through hole (34) corresponding to the first bidirectional screw rod (24) and having a clearance fit with the first bidirectional screw rod (24) is provided on the side surface of the second sliding block (32).

8. A grinding device for machining inner and outer rings of a bearing according to claim 1, characterized in that: An adjusting screw (13) is rotatably mounted on one side of the inner cavity of the movable groove (5) and is perpendicular to the base (1) and is driven in cooperation with the thread of the movable block (6). The upper end of the adjusting screw (13) passes through the movable groove (5) and is connected to a driving device. A guide rod (14) is provided on the other side of the inner cavity of the movable groove (5) and is parallel to the adjusting screw (13) and is used to horizontally limit the movable block (6).

9. A grinding device for machining inner and outer rings of a bearing according to claim 1, characterized in that: The first grinding shaft (28) and the second grinding shaft (35) are both hollow structures. The first grinding shaft (28) and the second grinding shaft (35) are both provided with a plurality of spray holes (29) spaced along their axial direction on the side facing the bearing ring. The ends of the first grinding shaft (28) and the second grinding shaft (35) away from the support plate (2) are open structures, and a sealing cover (30) is installed in the opening. The sealing cover (30) is provided with a connecting pipe (31) connected to an injection device and for injecting coolant into the first grinding shaft (28) and the second grinding shaft (35).

10. A grinding device for machining inner and outer rings of a bearing according to claim 1, characterized in that: The rotating roller A (17) is sleeved with two limit grinding rings (47) which are coaxially arranged with the rotating roller A (17) and are used to limit the end surfaces of the bearing rings at both ends. The front side of the slider A (16) is rotatably mounted with a double screw B (48) which is parallel to the rotating roller A (17) and is used to adjust the distance between the two limit grinding rings (47).

Images