Universal tool for measuring runout of flange surface of automobile hub bearing

Abstract

The utility model discloses a universal tool for measuring the runout of the flange surface of an automobile hub bearing, which comprises a base and a hub bearing to be detected, the base is provided with a digital display dial indicator for measuring the runout of the flange surface of the hub bearing, the base is provided with a bearing seat for fixing the hub bearing, and the hub bearing is provided with a bearing seat for fixing the hub bearing. The base is provided with a pneumatic locking piece used for carrying out pneumatic locking on the hub bearing when the hub bearing is detected by the digital display dial indicator. The bearing run-out detection device overcomes the problem of poor end run-out detection accuracy of a traditional bearing run-out detection device in the prior art. The device has the advantages that the detection efficiency is improved, the application range is wide, the labor intensity of detection personnel is reduced, the misjudgment rate is reduced through the digital display dial indicator, and the production efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of wheel hub bearing testing tools, and more specifically, to a general-purpose tooling for measuring the runout of the flange surface of automotive wheel hub bearings. Background Technology

[0002] The upper plate surfaces are in contact. Under this testing condition, the rolling elements and raceways will not self-lock, and the rolling element base surface and the inner ring flange will be in contact. This makes the testing method easy to operate and can accurately reflect the inner ring runout value of the bearing, thus solving the problem of inaccurate detection of the axial and radial runout of the inner ring of large tapered roller bearings.

[0003] While the aforementioned patent describes a device and method for detecting inner ring runout of a large single-row tapered roller bearing, which offers the advantage of accurate detection, it lacks a bearing preload mechanism. Furthermore, because traditional second-generation wheel hub bearings are designed with positive clearance and axial movement, preload is required during testing to ensure accurate end-face runout detection. With bearing preload, coordinate measuring machine (CMM) measurements have low error but low efficiency; dedicated testing equipment has low measurement error but higher equipment and tooling costs, and is suitable for mass production; manual inspection offers advantages such as low cost, easy model changeover, and strong versatility, but poor accuracy. Traditional manual inspection methods suffer from poor end-face runout detection accuracy, low efficiency, and a misjudgment rate as high as 25%, requiring secondary testing and impacting production efficiency. Utility Model Content

[0004] In order to overcome the problem of poor end runout detection accuracy of traditional bearing runout detection devices in the prior art, this utility model provides a general tooling for measuring the runout of the flange surface of automotive wheel hub bearings, which has the advantage of good end runout detection accuracy.

[0005] This utility model discloses a universal tooling for measuring the runout of the flange surface of an automotive wheel hub bearing, comprising a base and a wheel hub bearing to be tested. The base is equipped with a digital dial indicator for measuring the runout of the flange surface of the wheel hub bearing, a bearing seat for fixing the wheel hub bearing, and a pneumatic locking component for pneumatically locking the wheel hub bearing when the digital dial indicator is used to test the wheel hub bearing.

[0006] The digital dial indicator allows customers to quickly read the detected data, facilitating customer operation and recording. The lower end of the bearing seat is welded to the upper end of the base located on the front side of the support column.

[0007] Preferably, the pneumatic locking component includes a cylinder for pressing down and locking the wheel hub bearing, wherein the lower end of the piston rod of the cylinder abuts against the center of the upper end face of the wheel hub bearing.

[0008] Preferably, a pneumatic switch for controlling the cylinder is provided on one side of the base. Specifically, the pneumatic switch is located on the right end face of the base and connected to the base by a screw. The gas output end of the pneumatic switch is connected to the gas input end of the cylinder by a gas pipe, and the gas input end of the pneumatic switch is connected to the gas output end of the cylinder by a gas pipe.

[0009] Preferably, a support column is provided on the base located on the side of the bearing housing, and the cylinder is mounted on the support column. Specifically, the support column is located on the front side of the bearing housing, and the lower end face of the support column is welded to the upper end face of the base.

[0010] Preferably, the support column is provided with a bracket for mounting the cylinder. The piston rod of the cylinder is vertically mounted downwards on the upper end of the bracket. The piston rod passes through the bracket and abuts against the center of the upper end face of the wheel hub bearing. Specifically, the bracket is located at the upper end of the support column. The lower right side of the bracket is connected to the upper end face of the support column by a screw. The center of the bracket has a through hole for slidingly inserting the piston rod. The piston rod passes vertically through the through hole, and the lower end of the piston rod is fitted with a locking element for pressing down and locking the wheel hub bearing, which matches the center of the upper end face of the wheel hub bearing.

[0011] Preferably, the base is provided with an angle adjustment mechanism for adjusting the relative position of the digital micrometer and the wheel hub bearing, and the digital micrometer is installed at one end of the angle adjustment mechanism.

[0012] Preferably, the angle adjustment mechanism includes a column, on which a manually adjustable rotating component is sleeved. The front end of the rotating component is provided with a clamp for clamping and mounting a digital dial indicator. Specifically, the column is located on the left side of the bearing seat, and the lower end face of the column is welded to the upper end face of the base. A limiting component for limiting the rotation of the rotating component is provided on the column at the lower end of the rotating component. The limiting component is annularly sleeved on the column and connected to the column by screws.

[0013] Preferably, the gripper is provided with an adjusting element for adjusting the gripping force. The digital micrometer is vertically inserted into the gripper and secured by the adjusting element. Specifically, the rear end of the gripper and the front end of the rotating component are fixedly connected by screws. The gripper has an arc-shaped mounting position for vertically inserting the digital micrometer. The gripper in front of the mounting position has an adjusting element for adjusting the gripping force. The adjusting element is an adjusting bolt that passes horizontally through the gripper. An adjusting nut is fitted on the adjusting bolt on the left side of the gripper. The opening and closing of the gripper is adjusted by turning the adjusting nut. The digital micrometer is vertically inserted into the mounting position and secured by the adjusting element.

[0014] Preferably, the rear end of the rotating component is provided with a mounting claw connected to the column. The mounting claw is provided with a second adjusting component for adjusting the clamping force of the mounting claw. The mounting claw is sleeved on the column and fastened by the second adjusting component. Specifically, the rear end of the rotating component is provided with a mounting claw connected to the column. The rear end of the mounting claw is welded to the front end of the rotating component. A column mounting position matching the diameter of the column is opened at the jaw of the mounting claw. The mounting claw located behind the column mounting position is provided with a second adjusting component for adjusting the clamping force of the mounting claw. The second adjusting component is a tightening bolt. The tightening bolt passes through the mounting claw laterally. A tightening nut is fitted on the tightening bolt located on the right side of the mounting claw. The opening and closing of the mounting claw is adjusted by turning the tightening nut. The mounting claw is sleeved on the column through the column mounting position and fastened by the second adjusting component.

[0015] When detecting runout of the end face of a wheel hub bearing, this invention applies an axial locking force to the bearing using a cylinder. The amount of airflow in the cylinder can be adjusted by a pneumatic switch to regulate the locking force, thus adapting to wheel hub bearings of different sizes and making it widely applicable. The digital dial indicator replaces the traditional dial indicator, making it easy to read and reducing production costs while solving the problems of human error and low testing efficiency.

[0016] During operation, first loosen the tightening nut, then manually grasp the rotating part and rotate it to the left around the column to move the digital dial indicator away from the bearing housing. Then fix the wheel hub bearing on the bearing housing, manually reset the digital dial indicator so that the measuring part of the digital dial indicator abuts against the flange surface of the wheel hub bearing, then manually turn the pneumatic switch. The cylinder drives the piston rod to move down until it abuts against the center of the upper end face of the wheel hub bearing. Then increase the cylinder thrust to lock the wheel hub bearing. Hold the wheel hub bearing bolt and rotate it 1-2 turns, read the data from the digital dial indicator and record it. Then manually reset the cylinder, remove the wheel hub bearing, and complete one testing cycle.

[0017] The cylinder in question is a traditional cylinder, and the model number that can be used is SCA2-00-50B-70.

[0018] This utility model has the following advantages: it improves detection efficiency and has a wide range of applications; it changes manual nut locking to automatic locking, reducing the labor intensity of detection personnel; and it reduces the false judgment rate and improves production efficiency by using a digital dial indicator. Attached Figure Description

[0019] Appendix Figure 1 This is a schematic diagram of the structure of this utility model.

[0020] Appendix Figure 2 This is a front view of the present invention.

[0021] Appendix Figure 3This is a schematic diagram of the rotating component of this utility model.

[0022] 1. Base, 2. Hub bearing, 3. Flange surface, 4. Digital dial indicator, 5. Bearing housing, 6. Cylinder, 7. Pneumatic switch, 8. Support column, 9. Frame plate, 10. Rotating component, 11. Clamping claw, 12. Adjusting component No. 1, 13. Mounting claw, 14. Adjusting component No. 2, 15. Piston rod, 16. Detailed Implementation

[0023] The technical solution of this utility model will be further described in detail below through embodiments and in conjunction with the accompanying drawings.

[0024] Example: According to the appendix Figure 1 Appendix Figure 2 and attached Figure 3 To further illustrate this utility model, this example provides a general-purpose tooling for measuring the runout of the flange surface of an automotive wheel hub bearing. The tooling includes a base 1 and a wheel hub bearing 2 to be tested. The base 1 is equipped with a digital dial indicator 4 for measuring the runout of the flange surface 3 of the wheel hub bearing 2. The base 1 also has a bearing seat 5 for fixing the wheel hub bearing 2. Furthermore, the base 1 is equipped with a pneumatic locking component for pneumatically locking the wheel hub bearing 2 when the digital dial indicator 4 is testing it.

[0025] The pneumatic locking component includes a cylinder 6 for pressing down and locking the wheel hub bearing 2, wherein the lower end of the piston rod 16 of the cylinder 6 abuts against the center of the upper end face of the wheel hub bearing 2.

[0026] A pneumatic switch 7 for controlling the cylinder 6 is provided on one side of the base 1.

[0027] A support column 8 is provided on the base 1 located on the side of the bearing housing 5, and the cylinder 6 is mounted on the support column 8.

[0028] The support column 8 is provided with a bracket plate 9 for mounting the cylinder 6. The piston rod 16 of the cylinder 6 is mounted vertically downward on the upper end of the bracket plate 9. The piston rod 16 passes through the bracket plate 9 and abuts against the center of the upper end face of the wheel hub bearing 2.

[0029] The base 1 is provided with an angle adjustment mechanism for adjusting the relative position of the digital micrometer 4 and the wheel hub bearing 2, and the digital micrometer 4 is installed at one end of the angle adjustment mechanism.

[0030] The angle adjustment mechanism includes a column 10, on which a rotating component 11 that can be manually adjusted and rotates around the column 10 is sleeved. The front end of the rotating component 11 is provided with a clamp 12 for clamping and installing a digital micrometer 4.

[0031] The gripper 12 is provided with a first adjusting member 13 for adjusting the clamping force of the gripper 12, and the digital micrometer 4 is vertically inserted into the gripper 12 and is fastened by the first adjusting member 13.

[0032] The rear end of the rotating component 11 is provided with a mounting claw 14 connected to the column 10. The mounting claw 14 is provided with a second adjusting component 15 for adjusting the clamping force of the mounting claw 14. The mounting claw 14 is sleeved on the column 10 and is fastened by the second adjusting component 15.

[0033] The above description is only a specific embodiment of the present utility model, but the structural features of the present utility model are not limited thereto. Any changes or modifications made by those skilled in the art within the scope of the present utility model are covered by the patent scope of the present utility model.

Claims

1. A universal tooling for measuring the runout of the flange surface of an automotive wheel hub bearing, comprising a base (1) and a wheel hub bearing to be tested (2), characterized in that, The base (1) is provided with a digital dial indicator (4) for measuring the runout of the flange surface (3) of the wheel hub bearing (2), the base (1) is provided with a bearing seat (5) for fixing the wheel hub bearing (2), and the base (1) is provided with a pneumatic locking component for pneumatically locking the wheel hub bearing (2) when the digital dial indicator (4) tests the wheel hub bearing (2).

2. The universal tooling for measuring the runout of the flange surface of an automotive wheel hub bearing according to claim 1, characterized in that, The pneumatic locking component includes a cylinder (6) for pressing down and locking the hub bearing (2), wherein the lower end of the piston rod (16) of the cylinder (6) abuts against the center of the upper end face of the hub bearing (2).

3. The universal tooling for measuring the runout of the flange surface of an automotive wheel hub bearing according to claim 2, characterized in that, The base (1) is provided with a pneumatic switch (7) for controlling the cylinder (6) on one side.

4. The universal tooling for measuring the runout of the flange surface of an automotive wheel hub bearing according to claim 2, characterized in that, A support column (8) is provided on the base (1) located on the side of the bearing seat (5), and the cylinder (6) is installed on the support column (8).

5. A universal tooling for measuring the runout of the flange surface of an automotive wheel hub bearing according to claim 4, characterized in that, The support column (8) is provided with a frame plate (9) for mounting the cylinder (6). The piston rod (16) of the cylinder (6) is mounted vertically downward on the upper end of the frame plate (9). The piston rod (16) passes through the frame plate (9) and abuts against the center of the upper end face of the wheel hub bearing (2).

6. The universal tooling for measuring the runout of the flange surface of an automotive wheel hub bearing according to claim 1, characterized in that, The base (1) is provided with an angle adjustment mechanism for adjusting the relative position of the digital micrometer (4) and the wheel hub bearing (2), and the digital micrometer (4) is installed at one end of the angle adjustment mechanism.

7. A universal tooling for measuring the runout of the flange surface of an automotive wheel hub bearing according to claim 6, characterized in that, The angle adjustment mechanism includes a column (10), on which a rotating part (11) that can be manually adjusted and rotates around the column (10) is sleeved. The front end of the rotating part (11) is provided with a clamp (12) for clamping and installing a digital micrometer (4).

8. A universal tooling for measuring the runout of the flange surface of an automotive wheel hub bearing according to claim 7, characterized in that, The clamp (12) is provided with a first adjusting element (13) for adjusting the clamping force of the clamp (12), and the digital micrometer (4) is vertically inserted into the clamp (12) and fastened by the first adjusting element (13).

9. A universal tooling for measuring the runout of the flange surface of an automotive wheel hub bearing according to claim 7, characterized in that, The rotating part (11) has a mounting claw (14) at its rear end that is connected to the column (10). The mounting claw (14) is provided with a second adjusting part (15) for adjusting the clamping force of the mounting claw (14). The mounting claw (14) is sleeved on the column (10) and fastened by the second adjusting part (15).

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