A bearing outer ring inner hole grinding device

Abstract

This utility model relates to a bearing outer ring inner hole grinding device. By arranging several rotating rods and grinding brush heads at intervals on the lifting seat, and cooperating with the drive device to realize the synchronous rotation of multiple rotating rods, multiple bearing outer ring inner holes can be ground simultaneously. Compared with traditional single-station equipment, it significantly increases the processing quantity per unit time, meeting the needs of batch production. The conveyor, clamping device, and grinding device are integrated into the worktable, with a reasonable layout. The workpiece can be directly transported to the grinding station by the conveyor, and after being fixed by the clamping device, grinding can be carried out. The process is closely connected, reducing workpiece transfer time and improving production continuity. At the same time, it can reduce manual intervention, reduce the labor intensity of operators, and improve production safety.

Description

Technical Field

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

[0002] As a key component of the bearing, the machining accuracy of the inner bore of the bearing outer ring directly affects the bearing's assembly quality, rotational stability, and service life. During the production of the bearing outer ring, the inner bore surface often has defects such as burrs, scratches, and oxide scale remaining due to casting, forging, or preliminary machining. These defects need to be repaired through a grinding process to achieve the required surface roughness and dimensional accuracy.

[0003] Traditional bearing outer ring inner hole grinding often uses single-station semi-automatic equipment. Although single-station semi-automatic equipment can achieve partial automation, it can usually only grind one bearing outer ring at a time, and the processing efficiency is difficult to meet the needs of mass production. Utility Model Content

[0004] The present invention aims to solve, at least to some extent, one of the problems existing in the existing related technologies. To this end, the present invention proposes a bearing outer ring inner hole grinding device.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A bearing outer ring inner hole grinding device includes a worktable, on which a conveyor, a clamping device, and a grinding device are respectively arranged. The conveyor is used to transport the bearing outer ring to be ground, and the clamping device is used to clamp the bearing outer ring on the conveyor. The grinding device includes a frame, on which a lifting seat that can be raised and lowered is arranged. A plurality of rotating rods are sequentially and spaced apart on the lifting seat. A grinding brush head is arranged at the lower end of the rotating rod. A driving device is also arranged on the lifting seat, and the driving device can drive all the rotating rods to rotate.

[0007] In some embodiments, linear slide modules are spaced apart on the frame, and the lifting seat is disposed on two slides of the two linear slide modules.

[0008] In some embodiments, the drive device includes a motor mounting base disposed on the lifting seat, a motor disposed on the motor mounting base, a first pulley disposed on the motor output shaft, a second pulley disposed on one of the rotating rods, a synchronous belt connecting the first pulley and the second pulley, and gears disposed on all the rotating rods, with adjacent gears capable of meshing with each other.

[0009] In some embodiments, the conveyor includes a conveyor frame with two conveyor belts spaced apart, the distance between the two conveyor belts being greater than the inner diameter of the outer ring of the bearing.

[0010] In some embodiments, the clamping device includes cylinders spaced apart on both sides of the conveyor, the two cylinders being arranged opposite each other, and a clamping plate being provided on the output shaft of the cylinders. The clamping plate is provided with a plurality of arc-shaped clamping grooves, and the outer ring of the bearing is clamped relative to the arc-shaped clamping grooves on the two clamping plates.

[0011] In some embodiments, the polishing brush head includes a brush head seat disposed at the lower end of the rotating rod, sliding seats are slidably disposed on the left and right sides of the brush head seat, brush bristles are disposed on the outer sides of both sliding seats, and an adjustment device is also disposed on the brush head seat to drive the two sliding seats to slide relative to each other.

[0012] In some embodiments, the adjusting device includes an adjusting gear rotatably disposed within the brush head seat, and racks that can mesh with the adjusting gear are provided at the inner ends of both sliding seats. The axis of the adjusting gear extends downward to the outside of the brush head seat and is provided with a knob. A bolt is provided on the knob, and the threaded end of the bolt can be tightened against the brush head seat.

[0013] In some embodiments, a plurality of polishing fluid nozzles are also provided on the frame.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] 1. By setting several rotating rods and grinding brush heads at intervals on the lifting platform, and cooperating with the drive device to realize the synchronous rotation of multiple rotating rods, the inner holes of multiple bearing outer rings can be ground at the same time. Compared with traditional single-station equipment, the processing quantity per unit time is greatly increased, meeting the needs of mass production.

[0016] 2. The conveyor, clamping device, and grinding device are integrated into the worktable, with a reasonable layout. The workpiece can be directly transported to the grinding station by the conveyor, and after being fixed by the clamping device, it can be ground. The process is closely connected, reducing the workpiece transfer time and improving production continuity. At the same time, it can reduce manual intervention, reduce the labor intensity of operators, and improve production safety. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0018] Figure 2 This is a schematic diagram of the main structure of this utility model.

[0019] Figure 3 This utility model Figure 2 Schematic diagram of section AA.

[0020] Figure 4 This is a top view of the clamping device of this utility model.

[0021] Figure 5 This is one of the structural schematic diagrams of the grinding brush head of this utility model.

[0022] Figure 6 This is the second schematic diagram of the structure of the grinding brush head of this utility model. Detailed Implementation

[0023] The following detailed description provides various embodiments or examples for implementing this utility model. Of course, these are merely embodiments or examples and are not intended to be limiting. Additionally, repeated reference numerals, such as repeated numbers and / or letters, may be used in different embodiments. These repetitions are for the purpose of simple and clear description of this utility model and do not represent a specific relationship between the different embodiments and / or structures discussed.

[0024] like Figures 1-6 The bearing outer ring inner hole grinding device shown includes a worktable 1, on which a conveyor 2, a clamping device 3, and a grinding device are respectively arranged. The conveyor 2 is used to transport the bearing outer ring 10 to be ground, and the clamping device 3 is used to clamp the bearing outer ring 10 on the conveyor 2. The grinding device includes a frame 5, on which a lifting seat 6 that can be raised and lowered is arranged. Several rotating rods 7 are sequentially and spaced apart on the lifting seat 6. A grinding brush head 8 is arranged at the lower end of the rotating rod 7. A driving device is also arranged on the lifting seat 6, which can drive all the rotating rods 7 to rotate.

[0025] Specifically, the bearing outer ring inner hole grinding device uses the workbench 1 as the basic support structure. The conveyor 2 is installed on the workbench 1 to continuously transport the bearing outer ring 10 to be ground. A belt conveyor structure can be adopted, and the movement of the bearing outer ring is realized by the operation of the conveyor belt. The clamping device 3 is set on the conveying path of the conveyor 2. When the bearing outer ring 10 is transported to the grinding station, the clamping device 3 is activated to firmly clamp and fix the bearing outer ring to prevent displacement during the grinding process. The frame 5 of the grinding device is fixed on the workbench 1 at the position corresponding to the clamping device. The lifting seat 6 is installed on the frame 5. Several rotating rods 7 are installed on the lifting seat 6 at certain intervals. The grinding brush head 8 at the lower end of the rotating rod 7 is adapted to the inner hole of the bearing outer ring. The drive device is installed on the lifting seat 6 and can drive all the rotating rods 7 to rotate simultaneously. During operation, the conveyor delivers the outer ring of the bearing to the grinding station, where the clamping device clamps it. The lifting seat 6 descends, allowing the grinding brush head 8 to extend into the inner hole. The drive device drives the rotating rod 7 to rotate, and the grinding brush head 8 grinds the outer ring. After completion, the lifting seat 6 rises, the clamping device releases, and the conveyor 2 sends the outer ring 10 of the bearing away.

[0026] Thus, the automatic conveying of the bearing outer ring is achieved through the conveyor 2, and the automatic clamping of the clamping device and the automatic grinding of the grinding device realize automated operation, which greatly improves the grinding efficiency. The setting of multiple rotating rods 7 and grinding brush heads 8 can simultaneously grind the inner hole of the bearing outer ring at multiple positions, improving the grinding effect and consistency.

[0027] See Figure 1 , Figure 2 As shown, linear slide modules 21 are spaced apart on the frame 5, and the lifting seat 6 is located on the two slides 22 of the two linear slide modules 21.

[0028] Specifically, two linear slide modules 21 are arranged vertically at intervals on the frame 5. The linear slide modules 21 can be structured by a motor-driven lead screw to move the slide 22. The two ends of the lifting seat 6 are fixedly connected to the slides 22 of the two linear slide modules 21 respectively. When the lifting seat 6 needs to be raised or lowered, the motor of the linear slide module 21 is started, driving the slide 22 to move up and down, thereby driving the lifting seat 6 to rise and fall synchronously.

[0029] See Figure 1-2 As shown, the driving device includes a motor mounting base 31 on the lifting seat 6, a motor 32 is mounted on the motor mounting base 31, a first pulley 33 is mounted on the output shaft of the motor 32, a second pulley 34 is mounted on one of the rotating rods 7, a synchronous belt 35 is connected between the first pulley 33 and the second pulley 34, and gears 36 are mounted on all the rotating rods 7, with adjacent gears 36 capable of meshing with each other.

[0030] The motor mounting base 31 of the drive device is fixed on the lifting base 6. The motor 32 is mounted on the motor mounting base 31 and connected to the power supply and control system. A first pulley 33 is mounted on the output shaft of the motor 32, and a second pulley 34 is mounted on one of the rotating rods 7. A synchronous belt 35 is sleeved between the first pulley 33 and the second pulley 34. At the same time, gears 36 are mounted on all rotating rods 7, and adjacent gears 36 mesh with each other. When working, the motor 32 starts and drives one of the rotating rods 7 to rotate through the first pulley 33, the synchronous belt 35 and the second pulley 34. The gears 36 on the rotating rod drive the gears on the adjacent rotating rods to rotate, thereby realizing the synchronous rotation of all rotating rods 7.

[0031] Therefore, by using a motor 32 to drive one of the rotating rods 7 via belt drive, and then using gears 36 to drive the other rotating rods, only one motor 32 is needed to drive all the rotating rods 7 to rotate, which simplifies the drive structure and reduces equipment cost and failure rate. The gear meshing transmission has the characteristic of stable transmission ratio, which can ensure that the rotation speed of all rotating rods 7 is consistent, ensuring that the grinding force and effect of each grinding brush head 8 are the same, and improving the consistency of grinding the inner hole of the bearing outer ring.

[0032] See Figures 1-3 As shown, the conveyor 2 includes a conveyor frame 41, on which two conveyor belts 42 are spaced apart, and the distance between the two conveyor belts 42 is greater than the inner diameter of the outer ring 10 of the bearing.

[0033] Specifically, the conveyor frame 41 of the conveyor 2 is fixed on the workbench 1, and two conveyor belts 42 are installed parallel and spaced on the conveyor frame 41. The conveyor belts can be made of materials such as rubber belts or metal belts and are driven by rollers. The distance between the two conveyor belts 42 is set to be greater than the inner diameter of the bearing outer ring 10, so that the grinding brush head 8 can pass through the inner hole of the bearing outer ring 10. The bearing outer ring 10 is placed on the two conveyor belts and is driven forward by the friction of the conveyor belts.

[0034] See Figure 4 As shown, the clamping device 3 includes cylinders 51 spaced apart on both sides of the conveyor 2. The two cylinders 51 are arranged opposite each other, and a clamping plate 52 is provided on the output shaft of the cylinder 51. The clamping plate 52 is provided with a plurality of arc-shaped clamping grooves 53. The outer ring 10 of the bearing is clamped relative to the arc-shaped clamping grooves 53 on the two clamping plates 52.

[0035] When the outer ring 10 of the bearing reaches the grinding station, the two cylinders 51 extend at the same time, driving the clamping plate 52 to move towards the middle. The corresponding arc-shaped clamping groove 53 wraps around and clamps the outer ring 10 of the bearing. After the grinding is completed, the cylinders retract and release the outer ring of the bearing.

[0036] See Figure 5 , Figure 6 As shown, the polishing brush head 8 includes a brush head seat 61 located at the lower end of the rotating rod 7. Sliding seats 62 are slidably mounted on the left and right sides of the brush head seat 61. Brush bristles 63 are provided on the outer sides of both sliding seats 62. An adjustment device that can drive the two sliding seats 62 to slide relative to each other is also provided on the brush head seat 61.

[0037] The brush head seat 61 of the polishing brush head 8 is fixed to the lower end of the rotating rod 7. Two sliding seats 62 are respectively installed on the left and right sides of the brush head seat 61 via a slide rail slider structure, and can slide laterally along the brush head seat. Brush bristles 63 are evenly and densely arranged on the outer side of the sliding seats 62, and the bristles can be made of materials such as steel wire and nylon. An adjustment device is installed on the brush head seat 61, which can drive the two sliding seats 62 to move closer or further apart. During operation, the distance between the two sliding seats 62 is adjusted according to the diameter of the inner hole of the bearing outer ring, so that the brush bristles 63 are in close contact with the inner hole wall to achieve the best polishing effect.

[0038] The distance between the two sliding seats 62 can be adjusted by the adjustment device, thereby changing the overall outer diameter of the grinding brush head 8. This allows the grinding brush head to adapt to grinding the inner hole of the outer ring of bearings with different diameter specifications, greatly improving the versatility and flexibility of the device and eliminating the need for frequent replacement of the grinding brush head. The contact force between the brush bristles and the inner hole wall can be adjusted according to the grinding requirements to ensure the grinding effect, while avoiding damage to the inner hole or brush bristles due to excessive contact, thus extending the service life of the grinding brush head.

[0039] Furthermore, the adjustment device includes an adjustment gear 71 rotatably disposed within the brush head seat 61, and racks 72 that can mesh with the adjustment gear 71 are provided at the inner ends of both sliding seats 62. The axis of the adjustment gear 71 extends downward to the outside of the brush head seat 61 and is provided with a knob 73. A bolt 74 is provided on the knob 73, and the threaded end of the bolt 74 can be tightened against the brush head seat 61.

[0040] When it is necessary to adjust the spacing of the sliding seats 62, loosen the bolt 74, turn the knob 73 to drive the adjusting gear 71 to rotate, and the adjusting gear drives the two sliding seats 62 to slide against each other through meshing with the rack 72. After adjusting to the appropriate position, tighten the bolt 74 to fix the knob, thereby fixing the position of the sliding seats.

[0041] In this invention, a plurality of polishing fluid nozzles 81 are also provided on the frame 5.

[0042] Several polishing fluid nozzles 81 are mounted on the frame 5. The spray direction of the nozzles is aligned with the polishing position of the inner hole of the outer ring of the bearing. The polishing fluid nozzles 81 are connected to the polishing fluid storage tank and the pump body through pipes. During the polishing process, the pump body delivers the polishing fluid to the polishing fluid nozzles 81 through pipes. The nozzles spray the polishing fluid onto the polishing area. The polishing fluid can be coolant, lubricant, etc.

[0043] Based on the accompanying drawings and the foregoing display and description of the basic principles, main features, and advantages of this utility model, those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A bearing outer ring inner hole polishing device, comprising a workbench (1), characterized in that: A conveyor (2), a clamping device (3), and a grinding device are respectively provided on the workbench (1). The conveyor (2) is used to transport the bearing outer ring (10) to be ground. The clamping device (3) is used to clamp the bearing outer ring (10) on the conveyor (2). The grinding device includes a frame (5). A lifting seat (6) that can be raised and lowered is provided on the frame (5). Several rotating rods (7) are installed at intervals on the lifting seat (6). A grinding brush head (8) is provided at the lower end of the rotating rod (7). A driving device is also provided on the lifting seat (6). The driving device can drive all the rotating rods (7) to rotate.

2. The bearing cone inner race grinding apparatus of claim 1, wherein: Linear slide modules (21) are spaced apart on the frame (5), and the lifting seat (6) is located on the two slides (22) of the two linear slide modules (21).

3. The bearing cone inner race grinding apparatus of claim 1, wherein: The drive device includes a motor mounting base (31) on the lifting seat (6), a motor (32) is mounted on the motor mounting base (31), a first pulley (33) is mounted on the output shaft of the motor (32), a second pulley (34) is mounted on one of the rotating rods (7), a synchronous belt (35) is connected between the first pulley (33) and the second pulley (34), and gears (36) are mounted on all the rotating rods (7), with two adjacent gears (36) able to mesh with each other.

4. The bearing cone inner race grinding apparatus of claim 1, wherein: The conveyor (2) includes a conveyor frame (41) with two conveyor belts (42) spaced apart on the conveyor frame (41), the distance between the two conveyor belts (42) being greater than the inner diameter of the bearing outer ring (10).

5. The bearing cone inner race grinding apparatus of claim 1, wherein: The clamping device (3) includes cylinders (51) spaced apart on both sides of the conveyor (2). The two cylinders (51) are arranged opposite to each other, and a clamping plate (52) is provided on the output shaft of the cylinder (51). The clamping plate (52) is provided with a plurality of arc-shaped clamping grooves (53). The outer ring (10) of the bearing is clamped relative to the arc-shaped clamping grooves (53) on the two clamping plates (52).

6. The bearing cone inner race grinding apparatus of claim 1, wherein: The polishing brush head (8) includes a brush head seat (61) located at the lower end of the rotating rod (7), sliding seats (62) sliding between each other on the left and right sides of the brush head seat (61), brush bristles (63) being provided on the outer sides of both sliding seats (62), and an adjustment device that can drive the two sliding seats (62) to slide between each other is also provided on the brush head seat (61).

7. A bearing cone inner bore grinding apparatus as set forth in claim 6 wherein: The adjustment device includes an adjustment gear (71) rotatably disposed within the brush head seat (61). A rack (72) capable of meshing with the adjustment gear (71) is provided at the inner end of each of the two sliding seats (62). The axis of the adjustment gear (71) extends downward to the outside of the brush head seat (61) and is provided with a knob (73). A bolt (74) is provided on the knob (73), and the threaded end of the bolt (74) can be tightened against the brush head seat (61).

8. The bearing cone inner race grinding apparatus of claim 1, wherein: Several polishing fluid nozzles (81) are also provided on the frame (5).

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