A high-precision cutting device for bearing rings

Abstract

This invention discloses a high-precision cutting device for bearing rings. The fixing assembly includes a sliding plate, a pressure plate on the sliding plate, and a fixing head on the pressure plate. The fixing head is rotatably connected to a fixing rod. A rotating support block is fixedly connected to the side of the pressure plate, and a sliding support block is slidably connected to the middle section of the pressure plate. The fixing rod located in the middle section is rotatably connected to the sliding support block, and the fixing rod located on the side is rotatably connected to the rotating support block. The fixing rods on opposite sides of two adjacent sets of fixing heads are connected to the same set of sliding support blocks. When the fixing assembly clamps the side of the ring, the fixing head located in the middle position moves towards the pressure plate due to the shape of the ring, squeezing the sliding support block to move towards the side. The fixing head on the side fits against the side of the ring, clamping the ring tightly. When clamping its end face, the fixing heads in the middle and side positions simultaneously contact the end face of the ring. With several fixing heads on the same plane, the ring is clamped tightly, avoiding the cumbersome situation of constantly changing different fixtures when grinding different surfaces.

Description

Technical Field

[0001] This invention relates to the field of bearing ring processing technology, specifically a high-precision cutting device for bearing rings. Background Technology

[0002] Bearings are key components used to support rotating mechanical parts. Their function is to reduce friction and enable the mechanical parts to rotate smoothly. Rolling bearings reduce friction through rolling elements, and cutting is commonly used in the production and processing of bearings.

[0003] Roller rings are crucial components of rolling bearings. The manufacturing process begins with selecting the desired cylindrical metal tubing, which is then cut to the designed dimensions. The cut metal tubing undergoes hot or cold forging to eliminate internal defects and improve the metal's microstructure. The forged blank is then annealed or normalized to adjust the metal's microstructure and properties. Next, a lathe is used to machine the blank, removing excess metal and forming the initial ring shape. The machined ring is then quenched and tempered to improve its hardness and toughness. After quenching and tempering, the ring is ground to achieve the required precision and surface quality. Finally, it undergoes inspection, demagnetization, and cleaning to obtain the finished roller ring.

[0004] After undergoing heat treatment processes such as quenching and tempering, the release of internal stress in the bearing ring material or uneven cooling can cause warping or deformation of the bearing ring. Grinding can correct these deformations and ensure that the bearing ring has good roundness, coaxiality and other positional tolerances. In addition, grinding can significantly improve the surface finish of the bearing ring and reduce surface roughness.

[0005] Grinding rings requires changing different fixtures depending on the grinding surface, which is quite cumbersome. Summary of the Invention

[0006] This invention provides a high-precision cutting device for bearing rings to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, the present invention provides the following technical solution:

[0008] A high-precision cutting device for bearing rings includes a fixing assembly disposed on one side of the cutting head. The fixing assembly includes symmetrically arranged sliding plates, a pressure plate disposed on the sliding plates, and a plurality of fixing heads disposed on the pressure plate. The fixing heads are rotatably connected to two sets of fixing rods. A rotating support block is fixedly connected to the side of the pressure plate, and a sliding support block is slidably connected to the middle section of the pressure plate. The fixing rods located in the middle section are rotatably connected to the sliding support block, and the fixing rods located on the side are rotatably connected to the rotating support block. The fixing rods on opposite sides of two adjacent sets of fixing heads are connected to the same set of sliding support blocks.

[0009] Preferably, a slider is fixedly connected to the pressure plate, the slider is slidably connected to the limiting groove, and the limiting groove is fixedly connected to the slide plate;

[0010] A limiting block is fixedly connected to the limiting slide groove, and the limiting block is slidably sleeved on the limiting slide rod. The limiting slide rod is fixedly connected to the pressure plate, and a first spring is provided between the pressure plate and the limiting block. The first spring is sleeved on the limiting slide rod.

[0011] Preferably, a sliding chamber is fixedly connected to the pressure plate, and the sliding support block is slidably connected to the sliding chamber.

[0012] Preferably, the skateboard is fixedly connected to a connecting plate, the connecting plate is connected to an adjusting box, the adjusting box is slidably connected to a fixing groove, and the fixing groove is disposed on the fixing plate;

[0013] The adjusting box is fixedly connected to a second connecting rod, which is fixedly connected to a rack. The rack is slidably connected to a limiting groove, which is fixedly connected to a fixing plate. The rack meshes with a gear, which is rotatably connected to the fixing plate.

[0014] The rack is fixedly connected to a first connecting rod, which is fixedly connected to the output end of the first telescopic rod, and the first telescopic rod is fixedly connected to a fixed plate.

[0015] Preferably, an adjusting screw is rotatably connected inside the adjusting box, and two sets of adjusting blocks are slidably connected inside the adjusting box. The two sets of adjusting blocks are symmetrically arranged inside the adjusting box. The adjusting screw is threadedly connected to the adjusting blocks. When the adjusting screw is rotated, the two sets of adjusting blocks move towards or away from each other. One end of an adjusting rod is rotatably connected to the adjusting block, and the other end of the adjusting rod is rotatably connected to a connecting plate. The connecting plate is inserted and slidably inserted inside the adjusting box.

[0016] Preferably, it also includes a process switching component, which is disposed on one side of the cutting head. The process switching component includes a rotating plate, and a rotating shaft is fixedly connected to the lower side of the rotating plate. The rotating shaft is rotatably connected to the device body. A first process component and a second process component are disposed on the rotating plate.

[0017] Preferably, the first process component includes a support column, which is fixedly connected to a rotating plate. A fixed shell is fixedly connected to the support column, and a central plate is fixedly connected to the fixed shell. Fixed sliding sleeves are provided on both sides of the central plate, and the fixed sliding sleeves are fixedly connected to the fixed shell. A fixed slider is slidably connected to the fixed sliding sleeves. A second spring is provided between the fixed slider and the central plate. The two ends of the second spring are fixedly connected to the fixed slider and the central plate, respectively. A fixed sleeve is fixedly connected to the fixed slider, and a fixed pressure groove is provided on the fixed sleeve.

[0018] The fixing sleeve is provided with a wedge-shaped block.

[0019] Preferably, the second process component includes a bracket, which is fixedly connected to a rotating plate. A fixed plate is fixedly connected to the bracket. Several sets of placement plates are evenly distributed on the fixed plate. A fastening groove is provided on the placement plate. A fastening block is slidably connected in the fastening groove. A locking block is fixedly connected to the fastening block.

[0020] One end of a fastening rod is rotatably connected to the fastening block, and the other end of the fastening rod is rotatably connected to the trigger plate. A third spring is provided between the trigger plate and the fixed plate, and the two ends of the third spring are respectively fixedly connected to the trigger plate and the fixed plate.

[0021] The trigger plate is equipped with a trigger lever.

[0022] Preferably, the support column is provided with a second telescopic rod, which is a structure in which both ends can extend and retract, and both output ends of the second telescopic rod are fixedly connected to trigger rods.

[0023] Preferably, the trigger rod can be pressed against the wedge block;

[0024] The trigger rod can abut against the trigger pressure rod.

[0025] This application uses a fixing component to clamp the ferrule. When the side of the ferrule is clamped and its end face is ground, the fixing head located in the middle position moves towards the pressure plate due to the shape of the ferrule, which is curved. The angle between the fixing head and the fixing rod connected in the middle position increases, squeezing the sliding block and causing it to move to the side. The fixing head connected to the side fits against the side of the ferrule and clamps it tightly. When the end face of the ferrule is clamped and its side face is ground, the fixing heads in the middle and side positions contact the end face of the ferrule simultaneously, which prevents the sliding block from sliding. Several fixing heads are on the same plane, clamping the ferrule tightly, avoiding the cumbersome situation of having to constantly change different fixtures when grinding different surfaces. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the front structure of the fixing component of the present invention;

[0027] Figure 2 This is a schematic diagram of the rear structure of the fixing component of the present invention;

[0028] Figure 3 This is a schematic diagram of the fixing component clamping structure of the present invention;

[0029] Figure 4 This is a schematic diagram of the fixing component adjustment structure of the present invention;

[0030] Figure 5 This is a partial structural diagram of the fixing component of the present invention;

[0031] Figure 6 This is a schematic diagram of the process switching component structure of the present invention;

[0032] Figure 7 This is a schematic diagram of the first process component structure of the present invention;

[0033] Figure 8 This is a schematic diagram of the structure of the second process component of the present invention.

[0034] In the diagram: 1. Fixed plate; 2. Fixed groove; 3. Slide plate; 4. Fixed head; 5. First telescopic rod; 6. First connecting rod; 7. Limiting groove; 8. Rack; 9. Second connecting rod; 10. Adjusting box; 11. Gear; 12. Pressure plate; 13. Rotating support block; 14. Sliding chamber; 15. Sliding support block; 16. Fixed rotating rod; 17. Sliding block; 18. Limiting slide rod; 19. Limiting slide groove; 20. First spring; 21. Limiting block; 22. Connecting plate; 23. Adjusting screw; 24. Adjusting block; 25. 27. Adjusting rod; 28. Rotating plate; 29. ​​Rotating shaft; 30. Support column; 31. Second telescopic rod; 32. Trigger rod; 33. Bracket; 34. Fixed plate; 35. Central plate; 36. Wedge block; 37. Fixed sleeve; 38. Fixed pressure groove; 39. Second spring; 40. Fixed slider; 41. Fixed sliding sleeve; 42. Fixed shell; 43. Mounting plate; 44. Fastening groove; 45. Fastening block; 46. Locking block; 47. Fastening rod; 48. Trigger plate; 49. Third spring; 50. Trigger pressure rod. Detailed Implementation

[0035] In this invention, the terms "first," "second," etc., are used for descriptive purposes only and do not specifically refer to any order or sequence, nor are they intended to limit the invention. They are merely used to distinguish protective components or operations described using the same technical terms, and should not be construed as indicating or implying their relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Furthermore, the technical solutions and features of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this invention.

[0036] Example 1:

[0037] Please refer to Figures 1-5 A high-precision cutting device for bearing rings includes a fixing assembly disposed on one side of the cutting head. The fixing assembly includes symmetrically arranged sliding plates 3, a pressure plate 12 disposed on the sliding plates 3, and a plurality of fixing heads 4 disposed on the pressure plate 12. The fixing heads 4 are rotatably connected to two sets of fixing rotating rods 16. A rotating support block 13 is fixedly connected to the side of the pressure plate 12. A sliding support block 15 is slidably connected to the middle section of the pressure plate 12. The fixing rotating rods 16 located in the middle section are rotatably connected to the sliding support block 15, and the fixing rotating rods 16 located on the side are rotatably connected to the rotating support block 13. The fixing rotating rods 16 on opposite sides of two adjacent sets of fixing heads 4 are connected to the same set of sliding support blocks 15.

[0038] A slider 17 is fixedly connected to the pressure plate 12. The slider 17 is slidably connected to the limiting groove 19. The limiting groove 19 is fixedly connected to the slide plate 3.

[0039] A limiting block 21 is fixedly connected to the limiting groove 19. The limiting block 21 is slidably sleeved on the limiting slide rod 18. The limiting slide rod 18 is fixedly connected to the pressure plate 12. A first spring 20 is provided between the pressure plate 12 and the limiting block 21. The first spring 20 is sleeved on the limiting slide rod 18.

[0040] A sliding chamber 14 is fixedly connected to the pressure plate 12, and the sliding support block 15 is slidably connected to the sliding chamber 14.

[0041] The sliding plate 3 is fixedly connected to a connecting plate 22, and the connecting plate 22 is connected to an adjusting box 10. The adjusting box 10 is slidably connected to a fixing groove 2, and the fixing groove 2 is provided on the fixing plate 1.

[0042] The adjustment box 10 is fixedly connected to a second connecting rod 9, which is fixedly connected to a rack 8. The rack 8 is slidably connected to a limiting groove 7, which is fixedly connected to a fixing plate 1. The rack 8 meshes with a gear 11, which is rotatably connected to the fixing plate 1.

[0043] The rack 8 is fixedly connected to a first connecting rod 6, which is fixedly connected to the output end of the first telescopic rod 5, and the first telescopic rod 5 is fixedly connected to the fixing plate 1.

[0044] An adjusting screw 23 is rotatably connected inside the adjusting box 10. Two sets of adjusting blocks 24 are slidably connected inside the adjusting box 10. The two sets of adjusting blocks 24 are symmetrically arranged inside the adjusting box 10. The adjusting screw 23 is threadedly connected to the adjusting blocks 24. When the adjusting screw 23 is rotated, the two sets of adjusting blocks 24 move towards or away from each other. One end of an adjusting rod 25 is rotatably connected to the adjusting block 24. The other end of the adjusting rod 25 is rotatably connected to a connecting plate 22. The connecting plate 22 is inserted into and slides inside the adjusting box 10.

[0045] The working principle and beneficial effects of the above scheme are as follows:

[0046] This application uses a fixing component to clamp the ferrule. When the side of the ferrule is clamped and its end face is ground, the fixing head 4 located in the middle position moves towards the pressure plate 12 due to the shape of the ferrule, which is curved. The angle between the fixing head 4 and the fixing rod 16 connected in the middle position increases, which squeezes the sliding block 15 and causes the sliding block 15 to move to the side. The fixing head 4 connected to the side fits against the side of the ferrule and clamps the ferrule. When the end face of the ferrule is clamped and its side is ground, the fixing head 4 in the middle and side positions simultaneously contacts the end face of the ferrule. At this time, the sliding block 15 does not slide. Several fixing heads 4 are in the same plane and clamp the ferrule, avoiding the cumbersome situation of having to change different fixtures when grinding different surfaces.

[0047] When clamping, the first telescopic rod 5 extends, driving one set of racks 8 to move, and through the gear 11, it drives the other set of racks 8 to move. The two sets move in opposite directions, which in turn drives the adjustment box 10 fixed on the racks 8 to move in opposite directions. The two sets of slide plates 3 move closer to each other, and the fixing head 4 set on the slide plate 3 clamps the collar.

[0048] When the fixed head 4 is in contact with the collar, the continuous extension of the first telescopic rod 5 may cause damage to the collar. The first spring 20 is provided. During the continuous extension of the first telescopic rod 5, the first spring 20 will be compressed. Under the restriction of the slider 17 and the limiting groove 19, the pressure plate 12 moves backward relative to the slide plate 3. This setting can effectively prevent damage to the collar.

[0049] Rotating the adjusting screw 23 changes the opening angle of the adjusting rod 25, thereby controlling the height of the connecting plate 22 within the adjusting box 10, i.e., controlling the clamping height of the fixing head 4. Changing the clamping height of the fixing head 4 allows for a wider range of applications for the fixing component.

[0050] Example 2:

[0051] Please refer to Figures 6-8 Based on Embodiment 1, it also includes a process switching component. The process switching component is disposed on one side of the cutting head. The process switching component includes a rotating plate 27. A rotating shaft 28 is fixedly connected to the lower side of the rotating plate 27. The rotating shaft 28 is rotatably connected to the device body. A first process component and a second process component are disposed on the rotating plate 27.

[0052] The first process component includes a support column 29, which is fixedly connected to a rotating plate 27. A fixed shell 42 is fixedly connected to the support column 29. A central plate 35 is fixedly connected to the fixed shell 42. Fixed sliding sleeves 41 are provided on both sides of the central plate 35. The fixed sliding sleeves 41 are fixedly connected to the fixed shell 42. A fixed slider 40 is slidably connected to the fixed sliding sleeves 41. A second spring 39 is provided between the fixed slider 40 and the central plate 35. The two ends of the second spring 39 are fixedly connected to the fixed slider 40 and the central plate 35, respectively. A fixed sleeve 37 is fixedly connected to the fixed slider 40. A fixed pressure groove 38 is provided on the fixed sleeve 37.

[0053] The fixing sleeve 37 is provided with a wedge block 36.

[0054] The second process component includes a bracket 33, which is fixedly connected to a rotating plate 27. A fixed plate 34 is fixedly connected to the bracket 33. Several sets of mounting plates 43 are evenly distributed on the fixed plate 34. A fastening groove 44 is provided on the mounting plate 43. A fastening block 45 is slidably connected in the fastening groove 44. A locking block 46 is fixedly connected to the fastening block 45.

[0055] One end of a fastening rod 47 is rotatably connected to the fastening block 45, and the other end of the fastening rod 47 is rotatably connected to the trigger plate 48. A third spring 49 is provided between the trigger plate 48 and the fixed plate 34, and the two ends of the third spring 49 are respectively fixedly connected to the trigger plate 48 and the fixed plate 34.

[0056] The trigger plate 48 is provided with a trigger lever 50.

[0057] The support column 29 is provided with a second telescopic rod 30, which is a structure that can extend and retract at both ends. Both output ends of the second telescopic rod 30 are fixedly connected to trigger rods 32.

[0058] The trigger rod 32 can be pressed against the wedge block 36;

[0059] The trigger rod 32 can abut against the trigger pressure rod 50.

[0060] The working principle and beneficial effects of the above scheme are as follows:

[0061] This application sets the first process component and the second process component on a rotatable rotating plate 27. By rotating the rotating plate 27, the relative positions of the first process component, the second process component and the cutting and grinding head are adjusted. After the first process component completes its operation, the rotating plate 27 is rotated to remove the first process component from the working range of the cutting and grinding head, and the second process component enters the working range of the cutting and grinding head. At this time, the workpiece on the first process component can be replaced. When processing the workpiece on the second process component, the workpiece on the first process component can be replaced. When processing the workpiece on the first process component, the workpiece on the second process component can be replaced, which can increase work efficiency.

[0062] The second telescopic rod 30 shortens, causing the trigger rod 32 to press against the wedge block 36, bringing the two sets of fixed sleeves 37 closer together. The fixed pressure groove 38 clamps the workpiece. The second telescopic rod 30 extends, and the two sets of fixed sleeves 37 move away from each other under the action of the second spring 39, releasing the workpiece. The second telescopic rod 30 also extends, pressing against the trigger pressure rod 50. The distance between the fixed plate 34 and the trigger plate 48 shortens, and the fastening block 45 moves outward. The locking block 46 connected to the fastening block 45 locks the workpiece (locks it in the inner ring of the collar), at which point it can be processed.

[0063] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A high-precision cutting device for bearing rings, characterized in that, The device includes a fixing component located on one side of the cutting head. The fixing component includes symmetrically arranged sliding plates with a pressure plate on them. The pressure plate has several fixing heads, and the fixing heads are rotatably connected to two sets of fixing rods. A rotating support block is fixedly connected to the side of the pressure plate, and a sliding support block is slidably connected to the middle section of the pressure plate. The fixing rods located in the middle section are rotatably connected to the sliding support block, and the fixing rods located on the side are rotatably connected to the rotating support block. The fixing rods on opposite sides of two adjacent sets of fixing heads are connected to the same set of sliding support blocks. It also includes a process switching component, which is located on one side of the cutting head. The process switching component includes a rotating plate, a rotating shaft is fixedly connected to the lower side of the rotating plate, and the rotating shaft is rotatably connected to the device body. The rotating plate is provided with a first process component and a second process component. The first process component includes a support column, which is fixedly connected to a rotating plate. A fixed shell is fixedly connected to the support column, and a central plate is fixedly connected to the fixed shell. Fixed sliding sleeves are provided on both sides of the central plate. The fixed sliding sleeves are fixedly connected to the fixed shell. A fixed slider is slidably connected to the fixed sliding sleeves. A second spring is provided between the fixed slider and the central plate. The two ends of the second spring are fixedly connected to the fixed slider and the central plate, respectively. A fixed sleeve is fixedly connected to the fixed slider, and a fixed pressure groove is provided on the fixed sleeve. The fixing sleeve is provided with a wedge-shaped block; The second process component includes a bracket, which is fixedly connected to a rotating plate. A fixed plate is fixedly connected to the bracket. Several sets of placement plates are evenly distributed on the fixed plate. Fastening grooves are provided on the placement plates. Fastening blocks are slidably connected in the fastening grooves. A locking block is fixedly connected to the fastening blocks. One end of a fastening rod is rotatably connected to the fastening block, and the other end of the fastening rod is rotatably connected to the trigger plate. A third spring is provided between the trigger plate and the fixed plate, and the two ends of the third spring are respectively fixedly connected to the trigger plate and the fixed plate. A trigger lever is provided on the trigger plate.

2. The high-precision cutting device for bearing rings according to claim 1, characterized in that, A slider is fixedly connected to the pressure plate, the slider is slidably connected to the limiting groove, and the limiting groove is fixedly connected to the slide plate; A limiting block is fixedly connected to the limiting slide groove. The limiting block is slidably sleeved on the limiting slide rod. The limiting slide rod is fixedly connected to the pressure plate. A first spring is provided between the pressure plate and the limiting block. The first spring is sleeved on the limiting slide rod.

3. The high-precision cutting device for bearing rings according to claim 1, characterized in that, A sliding chamber is fixedly connected to the pressure plate, and a sliding support block is slidably connected to the sliding chamber.

4. The high-precision cutting device for bearing rings according to claim 1, characterized in that, The skateboard is fixedly connected to a connecting plate, and the connecting plate is connected to an adjustment box. The adjustment box is slidably connected to a fixed groove, and the fixed groove is set on the fixed plate. The adjustment box is fixedly connected to a second connecting rod, which is fixedly connected to a rack. The rack is slidably connected to a limiting groove, which is fixedly connected to a fixed plate. The rack meshes with a gear, and the gear is rotatably connected to the fixed plate. The rack is fixedly connected to a first connecting rod, which is fixedly connected to the output end of the first telescopic rod, and the first telescopic rod is fixedly connected to a fixed plate.

5. The high-precision cutting device for bearing rings according to claim 4, characterized in that, An adjusting screw is rotatably connected inside the adjusting box, and two sets of adjusting blocks are slidably connected inside the adjusting box. The two sets of adjusting blocks are symmetrically arranged inside the adjusting box. The adjusting screw is threadedly connected to the adjusting blocks. When the adjusting screw is rotated, the two sets of adjusting blocks move towards or away from each other. One end of the adjusting rod is rotatably connected to the adjusting block, and the other end of the adjusting rod is rotatably connected to the connecting plate. The connecting plate is inserted and slidably inside the adjusting box.

6. The high-precision cutting device for bearing rings according to claim 1, characterized in that, The support column is equipped with a second telescopic rod, which is a structure that can extend and retract at both ends. Both output ends of the second telescopic rod are fixedly connected to trigger rods.

7. The high-precision cutting device for bearing rings according to claim 6, characterized in that, The trigger rod can be pressed against the wedge block; The trigger lever can abut against the trigger pressure lever.

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