A race grinding device for a wheel bearing

Abstract

The utility model belongs to the field of bearing raceway grinding, specifically is a kind of raceway grinding device of wheel bearing, including work bench and clamping mechanism, the top of work bench is equipped with two installation rings, the inside cooperation of two installation rings is equipped with rotary drum, the side of rotary drum is equipped with second drive source, clamping mechanism includes cam plate and L-shaped block, cam plate is set on the output end of second drive source, the side of cam plate is equipped with sliding slot, L-shaped block is equipped with three, the inside one side of rotary drum is connected in one end of three L-shaped blocks. The utility model through the ingenious cooperation of cam plate and three L-shaped blocks, make that sliding bar slides in sliding slot and guide groove, to move according to the bearing outer ring of different size specifications drive clamping plate, realize the synchronous radial movement of clamping mechanism, make device can not replace any component under the condition, through the simple drive of second drive source, automatically adapt to the bearing outer ring of different diameter specifications, significantly improve the versatility and application range of equipment.

Description

Technical Field

[0001] This utility model relates to the field of bearing raceway grinding, specifically a raceway grinding device for wheel bearings. Background Technology

[0002] As a key component of the automotive chassis system, wheel bearings directly affect the vehicle's smoothness, safety, and service life. The surface quality of the bearing raceway is one of the important indicators for evaluating bearing performance. High-precision raceways can effectively reduce friction, noise, and vibration, and improve the bearing's load-bearing capacity and durability. Therefore, precision grinding of the raceway is crucial in the bearing manufacturing process.

[0003] However, most common raceway grinding equipment uses fixed clamping, which is often difficult to adapt to bearing outer rings of different sizes and specifications, and the adjustment is cumbersome and the versatility is poor. Therefore, a raceway grinding device for wheel bearings is proposed to address the above problems. Utility Model Content

[0004] To address the shortcomings of existing technologies, which often struggle to adapt to bearing outer rings of different sizes and specifications, involve cumbersome adjustments, and have poor versatility, this utility model proposes a raceway grinding device for wheel bearings.

[0005] The technical solution adopted by this utility model to solve its technical problem is: a wheel bearing raceway grinding device, including a worktable and a clamping mechanism. The top of the worktable is provided with two mounting rings, and a rotating cylinder is fitted inside the two mounting rings. A second drive source is provided on one side of the rotating cylinder. The clamping mechanism includes a cam disk and L-shaped blocks. The cam disk is set on the output end of the second drive source. A sliding groove is opened on one side of the cam disk. There are three L-shaped blocks. One end of each of the three L-shaped blocks is connected to the inside of the rotating cylinder. Guide grooves are opened on the three L-shaped blocks respectively. The guide grooves correspond to the sliding grooves. A sliding rod is fitted inside the sliding grooves and guide grooves. A rectangular block is provided at one end of the sliding rod. A connecting block is provided on one side of the rectangular block. A clamping plate is provided at one end of the connecting block.

[0006] Preferably, the three L-shaped blocks are evenly distributed on the outer side of the cam disk.

[0007] Preferably, a first drive source is provided on one side of the top of the worktable, and a gear is provided at the output end of the first drive source. An external gear is provided on the outside of the rotating drum, and the rotating drum meshes with the external gear.

[0008] Preferably, the top of the worktable is provided with a bearing housing, and the output end of the first drive source is disposed on the bearing housing.

[0009] Preferably, a power source is provided on one side of the rotating drum, and the power source is electrically connected to the second drive source.

[0010] Preferably, the top of the workbench is provided with a first electric slide rail, the first electric slide rail is provided with a support column, a second electric slide rail is provided on one side of the support column, a rectangular plate is provided on the second electric slide rail, a third drive source is provided on the top of the rectangular plate, and a grinding wheel is provided at the output end of the third drive source.

[0011] Preferably, the first electric slide rail is located on the open side of the rotating drum.

[0012] Preferably, the bearing outer ring is held between the three clamping plates.

[0013] The advantages of this utility model are: 1. This utility model, through the ingenious cooperation of the cam disc and three L-shaped blocks, allows the slide rod to slide in the slide groove and guide groove, thereby driving the clamping plate to move according to the outer ring of the bearing with different sizes and specifications. This realizes the synchronous radial movement of the clamping mechanism, enabling the device to automatically adapt to the outer ring of bearings with different diameters and specifications through the simple drive of the second drive source without replacing any parts, significantly improving the versatility and applicability of the equipment.

[0014] 2. This utility model uses a cam disk to synchronously drive the radial movement of the clamping plates on three L-shaped blocks that are evenly distributed circumferentially. This ensures that the three clamping plates can simultaneously contact the workpiece and automatically center it, achieving extremely high centering accuracy. It also ensures that the raceway of the outer ring of the clamped bearing is strictly coaxial with the rotation center of the rotating drum, thereby ensuring the uniformity of the raceway wall thickness and geometric accuracy after grinding, and significantly improving product quality. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the raceway grinding device of this utility model; Figure 2 This is a schematic diagram of the mounting ring and rotating cylinder structure of this utility model; Figure 3 This is a schematic diagram of the internal structure of the rotating drum of this utility model; Figure 4 This is a schematic diagram of the clamping mechanism of this utility model.

[0017] In the diagram: 1. Workbench; 2. First drive source; 201. Gear; 202. Bearing seat; 3. Mounting ring; 4. Rotary drum; 401. External gear; 5. Clamping mechanism; 501. Cam plate; 502. Slide groove; 503. L-shaped block; 504. Guide groove; 505. Slide rod; 506. Rectangular block; 507. Connecting block; 508. Clamping plate; 6. Second drive source; 7. Power supply; 8. First electric slide rail; 9. Support column; 10. Second electric slide rail; 11. Rectangular plate; 12. Third drive source; 13. Grinding wheel; 14. Bearing outer ring. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0019] The following is in conjunction with the appendix Figures 1-4 This application will be described in further detail. This application discloses a raceway grinding apparatus for wheel bearings. (Refer to...) Figure 1 , Figure 3 and Figure 4A wheel bearing raceway grinding device includes a worktable 1 and a clamping mechanism 5. The worktable 1 serves as the base platform for the entire device, used to install and support all other functional components, ensuring overall stability and rigidity. Two mounting rings 3 are located on the top of the worktable 1, with rotating cylinders 4 fitted inside the two mounting rings 3. The mounting rings 3 are fixedly mounted on the worktable 1 to support and accommodate the rotating cylinders 4, providing them with a fulcrum for rotation. A second drive source 6 is located on one side of the rotating cylinder 4. The rotating cylinder 4 is the core rotating body of the device, its interior used to install the clamping mechanism 5, and its front end used to clamp the outer ring 14 of the bearing. The clamping mechanism 5 includes a cam disk 501 and an L-shaped block 503. The cam disk 501 is located at the output end of the second drive source 6. The cam disk 501 and the second drive source 6 constitute the power and control center of the clamping mechanism 5. The second drive source 6 (such as a servo motor) drives the cam disk 501 to rotate precisely. A cam track with a specific curve is provided on one side of the cam. The cam track converts the rotational motion of the drive source into the synchronous radial linear motion of the three clamping plates 508. Three L-shaped blocks 503 are provided, one end of each of the three L-shaped blocks 503 is connected to the inside of the rotating cylinder 4. The three L-shaped blocks 503 are evenly distributed and form the clamping skeleton. Guide grooves 504 are provided on the three L-shaped blocks 503 respectively. The guide grooves 504 correspond to the cam track 502. A slide rod 505 is fitted inside the cam track 502 and the guide groove 504. The guide groove 504 is fitted with the cam track 502 on the cam disk 501. The slide rod 505 moves in the two grooves at the same time, accurately converting the motion trajectory of the cam into the opening and closing action of the clamping plates 508. A rectangular block 506 is provided at one end of the slide rod 505. A connecting block 507 is provided on one side of the rectangular block 506. A clamping plate 508 is provided at one end of the connecting block 507. The clamping and releasing actions are ultimately performed by pushing the clamping plate 508 through the rectangular block 506 and the connecting block 507.

[0020] Reference Figure 4 Three L-shaped blocks 503 are evenly distributed on the outer side of the cam disk 501.

[0021] Reference Figure 1 The top side of the workbench 1 is provided with a first drive source 2. The first drive source 2 (usually a motor) provides power for the rotation of the drum 4. The output end of the first drive source 2 is provided with a gear 201. The outside of the drum 4 is provided with an external gear 401. The drum 4 meshes with the external gear 401. The gear 201 transmits the power of the motor to the external gear 401 on the drum 4.

[0022] Reference Figure 1 The top of the workbench 1 is provided with a bearing seat 202, and the output end of the first drive source 2 is set on the bearing seat 202. The bearing seat 202 provides support for the output shaft of the first drive source 2.

[0023] Reference Figure 1 and Figure 2 A power supply 7 is provided on one side of the rotating drum 4. The power supply 7 is electrically connected to the second drive source 6. The power supply 7 provides power to the second drive source 6 and is usually integrated as a servo driver or matched with a motor.

[0024] Reference Figure 1 The worktable 1 is equipped with a first electric slide rail 8 on its top. The first electric slide rail 8 controls the large stroke movement of the entire grinding unit in the X-axis direction (near or away from the workpiece) to achieve rapid positioning, feeding and retraction. The first electric slide rail 8 is equipped with a support column 9. A second electric slide rail 10 is equipped on one side of the support column 9. The support column 9 provides the Z-axis height foundation. The second electric slide rail 10 controls the precise positioning of the grinding wheel 13 in the Y-axis (up and down) direction. A rectangular plate 11 is equipped on the second electric slide rail 10. The rectangular plate 11 provides the installation position. A third drive source 12 is equipped on the top of the rectangular plate 11. The output end of the third drive source 12 is equipped with the grinding wheel 13. The third drive source 12 (spindle motor) provides high-speed rotation cutting power for the grinding wheel 13.

[0025] Reference Figure 1 The first electric slide rail 8 is located on the open side of the rotating drum 4.

[0026] Reference Figure 1 The outer ring 14 of the bearing is held between the three clamping plates 508.

[0027] Working principle: First, the outer ring 14 of the bearing is placed between the three clamping plates 508. The second drive source 6 is started, driving the cam disk 501 on its output end to rotate. When the cam disk 501 rotates, the slide groove 502 will force the slide rod 505 to move along its own trajectory and the guide groove 504 on the L-shaped block 503, thereby driving the rectangular block 506 and the connecting block 507 to move, that is, driving the three clamping plates 508 to retract synchronously towards the center, thereby clamping the outer ring 14 of the bearing placed therein.

[0028] Then the first electric slide rail 8 starts working, driving the entire support column 9 and its components in the horizontal direction to send the grinding wheel 13 to a position close to the workpiece. Then the second electric slide rail 10 starts working, driving the rectangular plate 11 and its components in the vertical direction to precisely lower the grinding wheel 13 and position it in the raceway of the outer ring 14 of the bearing. Then the third drive source 12 starts, driving the grinding wheel 13 to rotate at high speed for grinding.

[0029] At the same time, the first drive source 2 is started, driving the gear 201 to rotate. Since the gear 201 meshes with the external gear 401, it drives the external gear 401 and the rotating drum 4 to rotate, which in turn drives the clamping mechanism 5 and the outer ring 14 of the bearing to rotate, so that the grinding wheel 13 can fully grind the raceway on the outer ring 14 of the bearing.

[0030] The foregoing has shown and described 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 claimed utility model.

Claims

1. A grinding apparatus for the raceway of a wheel bearing, comprising a worktable (1), characterized in that: The top of the workbench (1) is provided with two mounting rings (3), and the inner sides of the two mounting rings (3) are fitted with a rotating cylinder (4). A second drive source (6) is provided on one side of the rotating cylinder (4). It also includes a clamping mechanism (5), which includes a cam disk (501), which is disposed on the output end of the second drive source (6), and a sliding groove (502) is provided on one side of the cam disk (501). It also includes L-shaped blocks (503), three of which are provided. One end of each of the three L-shaped blocks (503) is connected to the inside side of the rotating drum (4). Each of the three L-shaped blocks (503) has a guide groove (504) which corresponds to the slide groove (502). The slide groove (502) and guide groove (504) are fitted with a slide rod (505). One end of the slide rod (505) is provided with a rectangular block (506). One side of the rectangular block (506) is provided with a connecting block (507). One end of the connecting block (507) is provided with a clamping plate (508).

2. The wheel bearing raceway grinding device according to claim 1, characterized in that: The three L-shaped blocks (503) are evenly distributed on the outer side of the cam disk (501).

3. The wheel bearing raceway grinding device according to claim 1, characterized in that: The workbench (1) has a first drive source (2) on one side of its top. The output end of the first drive source (2) is provided with a gear (201). The outside of the rotating drum (4) is provided with an external gear (401). The rotating drum (4) meshes with the external gear (401).

4. The wheel bearing raceway grinding device according to claim 3, characterized in that: The top of the workbench (1) is provided with a bearing seat (202), and the output end of the first drive source (2) is set on the bearing seat (202).

5. The wheel bearing raceway grinding device according to claim 1, characterized in that: A power source (7) is provided on one side of the rotating drum (4), and the power source (7) is electrically connected to the second driving source (6).

6. The wheel bearing raceway grinding device according to claim 1, characterized in that: The workbench (1) is provided with a first electric slide rail (8) on the top, a support column (9) is provided on the first electric slide rail (8), a second electric slide rail (10) is provided on one side of the support column (9), a rectangular plate (11) is provided on the second electric slide rail (10), a third drive source (12) is provided on the top of the rectangular plate (11), and a grinding wheel (13) is provided at the output end of the third drive source (12).

7. The wheel bearing raceway grinding device according to claim 6, characterized in that: The first electric slide rail (8) is located on the open side of the rotating drum (4).

8. The wheel bearing raceway grinding device according to claim 1, characterized in that: The bearing outer ring (14) is held between the three clamping plates (508).

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