Quick clamping and aligning device for hub bearing

Abstract

The invention discloses a quick clamping and aligning device for a hub bearing, and relates to the technical field of hub bearing detection. Comprising a fixed seat and a material cup base, a chassis is mounted at the top of the fixed seat through bolts, handles are in threaded connection with the two ends of the bottom of the chassis, a measuring head mounting disc is arranged on the chassis, the measuring head mounting disc is in fastening connection with the chassis through the handles, and lower sliding grooves are distributed in the measuring head mounting disc. According to the quick clamping and aligning device for the hub bearing, the material cup base is used for placing a product, when the quick-release pin is rotated to be pulled out, the quick-release pin can be automatically jacked outwards under the elastic tension action of the compression spring, at the moment, an inclined face convex shoulder on the quick-release pin makes contact with a conical face concave shoulder on the limiting pin and a conical face concave shoulder on the inserting column, and the inclined face convex shoulder, the limiting pin and the conical face concave shoulder abut against one another to form interlocking; therefore, the material cup base can be locked, rapid clamping and fixing can be achieved, the device is suitable for three-point measurement of the flatness of bearings of different diameter specifications, the utilization rate of the device is improved, and the manufacturing and management cost of a clamping tool is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of wheel hub bearing detection, in particular to a wheel hub bearing quick clamping and centering device. Background Art

[0002] Automobile wheel hub bearing is one of the key components of automobiles. Its main function is to bear weight and provide precise guidance for the rotation of the wheel hub, which requires it to withstand not only axial loads but also radial loads. The inner ring of the automobile wheel hub bearing is mainly connected to the half shaft, and the outer ring of the bearing is connected to the automobile wheel hub. After the outer ring of the automobile wheel hub bearing is produced, its flatness needs to be tested.

[0003] At present, three-coordinate measuring machines are usually used to detect the outer dimensions of products such as the flatness of wheel hub bearings in order to improve the detection accuracy and efficiency. The three-coordinate measuring machine has an automatic operation function, but the existing fixtures do not have a reference positioning function and cannot meet the automatic operation conditions of the three-coordinate measuring machine. When using the three-coordinate measuring machine to detect the assembly dimensions of products, each measurement requires the operator to manually adjust the position of the wheel hub bearing in the coordinate system. The measurement program can only be started after the coordinate position is confirmed. The manual labor intensity is high and the operation efficiency is low. In addition, the positioning accuracy of the reference positioning method of manual stepping is uncontrolled, which affects the measurement accuracy of the wheel hub bearing and cannot form a large-scale and standardized detection operation mode. Summary of the invention

[0004] 1. Technical issues to be resolved

[0005] In view of the deficiencies in the prior art, the present invention provides a hub bearing quick clamping and centering device to solve the problems raised in the above background technology.

[0006] (II) Technical solution

[0007] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a wheel hub bearing quick clamping and centering device, comprising a fixed seat and a material cup base, the top of the fixed seat is installed with a chassis by bolts, the bottom ends of the chassis are threaded with handles, a probe mounting plate is arranged on the chassis, and the probe mounting plate is fastened to the chassis through the handles, a sliding groove is distributed on the probe mounting plate, and a sliding seat is slidably connected in the sliding groove, a trigger-type probe is embedded in the sliding seat, an assembly hole is provided in the middle of the probe mounting plate, and a longitudinal blind hole is provided on the probe mounting plate near the assembly hole, a limiting pin is embedded on the probe mounting plate near the longitudinal blind hole, a quick-release pin is movable sleeved in the longitudinal blind hole, and the quick-release pin A compression spring is arranged between the pin and the bottom of the longitudinal blind hole, and an inclined boss is arranged at one end of the quick-release pin close to the compression spring. An equal-dividing disk is movably clamped on the top of the probe mounting disk, and a locking screw is threadedly connected to the side of the equal-dividing disk. The equal-dividing disk is fastened to the probe mounting disk through the locking screw. A through hole is arranged in the middle of the equal-dividing disk, and strip holes are evenly distributed on the equal-dividing disk. A plug-in column is arranged at the lower part of the material cup base, and a conical concave shoulder is arranged at the lower part of the plug-in column. The plug-in column passes through the through hole and is plugged into the assembly hole, and contacts with the inclined boss of the quick-release pin. Upper slide grooves are evenly distributed on the material cup base, and the top of the trigger probe passes through the strip hole and the upper slide groove in turn, and extends upward out of the top of the material cup base.

[0008] As a preferred technical solution of the present invention, a first positioning column is embedded on the top of the fixing seat, a first positioning hole is provided on the chassis, and the first positioning column is inserted into the first positioning hole.

[0009] As a preferred technical solution of the present invention, a first positioning column is embedded on the top of the fixing seat, a first positioning hole is provided on the chassis, and the first positioning column is inserted into the first positioning hole.

[0010] As a preferred technical solution of the present invention, the longitudinal blind hole is connected to the inner ring wall of the assembly hole through penetration, and the limit pin is connected to the inner ring wall of the longitudinal blind hole through penetration.

[0011] As a preferred technical solution of the present invention, waist-shaped holes are distributed on the chassis, and the lower part of the trigger probe passes downward through the waist-shaped holes.

[0012] As a preferred technical solution of the present invention, second positioning columns are embedded at both ends of the chassis, and second positioning holes are provided at both ends of the probe mounting plate, and the second positioning columns are inserted into the second positioning holes.

[0013] As a preferred technical solution of the present invention, threaded holes are provided at both ends of the probe mounting plate, and the head end of the handle is threadedly connected to the chassis through the threaded holes.

[0014] As a preferred technical solution of the present invention, an annular groove is provided on the outer wall of the probe mounting disk, and claws are provided around the equally divided disk, and are movably connected to the probe mounting disk through the claws and the annular groove.

[0015] As a preferred technical solution of the present invention, the locking screw is threadedly installed on the claw, so that the claw is tightly connected to the annular groove.

[0016] As a preferred technical solution of the present invention, a test product is placed on the material cup base, and the top of the trigger probe contacts the bottom surface of the test product.

[0017] (III) Beneficial effects

[0018] Compared with the prior art, the present invention provides a hub bearing quick clamping and self-aligning device, which has the following beneficial effects:

[0019] 1. The wheel hub bearing quick clamping and self-aligning device has a material cup base for product placement. When the quick-release pin is pulled outward by rotation, the quick-release pin will be automatically pushed outward under the elastic tension of the compression spring. At this time, the inclined convex shoulder on the quick-release pin contacts the conical concave shoulder on the limit pin and the plug-in column respectively, and the three are pressed against each other to form an interlocking, thereby locking the material cup base, which can achieve quick clamping and fixing. It is suitable for three-point measurement of the flatness of bearings of different diameters and specifications, improves the utilization rate of the device, and reduces the production and management costs of clamping tooling.

[0020] 2. The hub bearing quick clamping and self-aligning device, after the product is placed stably, uses the plane formed by the three-point trigger probes on the actual measured surface that are far apart as the evaluation reference plane, loosens the locking screws, and rotates the dividing disk to make the tiny probe move parallel to the product surface, and transmits the signal to the host computer for processing and analysis. The flatness is evaluated by comparing the deviation between the measured values ​​of each point on the product surface and the ideal plane, and the surface flatness of the product can be accurately detected.

[0021] 3. The hub bearing quick clamping and self-aligning device only needs to place the subsequent bearing to be measured directly on the material cup base during the continuous measurement process, and directly start the three-point measurement program to quickly, accurately and standardizedly complete the measurement task of batch bearings, eliminating the tedious steps of the traditional measurement method that requires operators to manually step on the points for each bearing to be measured, adjust and confirm the spatial position of the bearing in the coordinate system before starting the measurement program. It improves the operation efficiency and measurement accuracy, reduces the labor intensity of operators, and enables the measurement of bearings of the same specifications to have a unified measurement benchmark. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic structural diagram of a wheel hub bearing quick clamping and self-aligning device proposed by the present invention;

[0023] Figure 2 This is a reverse view of a hub bearing quick clamping and self-aligning device proposed by the present invention;

[0024] Figure 3 This is a partial axonometric diagram of a wheel hub bearing quick clamping and centering device proposed by the present invention;

[0025] Figure 4 A wheel hub bearing quick clamping and centering device proposed by the present invention Figure 3 Split graph;

[0026] Figure 5 The present invention is a partial cross-sectional view of a hub bearing quick clamping and self-aligning device.

[0027] In the figure: 1. fixing seat; 2. material cup base; 3. chassis; 4. handle; 5. probe mounting plate; 6. lower slide groove; 7. slide seat; 8. trigger probe; 9. assembly hole; 10. longitudinal blind hole; 11. limit pin; 12. quick release pin; 13. compression spring; 14. inclined shoulder; 15. dividing plate; 16. locking screw; 17. through hole; 18. strip hole; 19. plug-in column; 20. concave shoulder; 21. upper slide groove; 22. first positioning column; 23. first positioning hole; 24. waist hole; 25. second positioning column; 26. second positioning hole; 27. threaded hole; 28. annular groove; 29. ​​claw; 30. test product. DETAILED DESCRIPTION

[0028] In order to be able to understand the features and technical contents of the embodiments of the present disclosure in more detail, the implementation of the embodiments of the present disclosure is described in detail below in conjunction with the accompanying drawings. The attached drawings are for reference only and are not used to limit the embodiments of the present disclosure. In the following technical description, for the convenience of explanation, a full understanding of the disclosed embodiments is provided through multiple details. However, one or more embodiments can still be implemented without these details. In other cases, to simplify the drawings, well-known structures and devices can be simplified for display.

[0029] The terms "first", "second", etc. in the specification and claims of the embodiments of the present disclosure and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the terms used in this way can be interchanged where appropriate, so that the embodiments of the embodiments of the present disclosure described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions.

[0030] In the embodiments of the present disclosure, the terms "upper", "lower", "inside", "middle", "outside", "front", "back" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. These terms are mainly intended to better describe the embodiments of the present disclosure and their embodiments, and are not intended to limit the indicated devices, elements or components to have a specific direction, or to be constructed and operated in a specific direction. Moreover, in addition to being used to indicate directions or positional relationships, some of the above terms may also be used to indicate other meanings. For example, the term "upper" may also be used to indicate a certain dependency or connection relationship in certain circumstances. For those of ordinary skill in the art, the specific meanings of these terms in the embodiments of the present disclosure can be understood according to specific circumstances.

[0031] In addition, the terms "disposed", "connected", and "fixed" should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection, or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be an internal connection between two devices, elements, or components. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present disclosure can be understood according to specific circumstances.

[0032] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present disclosure may be combined with each other.

[0033] See also Figure 1-Figure 5A wheel hub bearing quick clamping and aligning device comprises a fixing seat 1 and a material cup base 2, a chassis 3 is installed on the top of the fixing seat 1 by bolts, handles 4 are threadedly connected to the bottom ends of the chassis 3, a probe mounting plate 5 is arranged on the chassis 3, and the probe mounting plate 5 is fastened to the chassis 3 by the handles 4, a sliding groove 6 is distributed on the probe mounting plate 5, and a slide seat 7 is slidably connected in the sliding groove 6, a trigger probe 8 is inlaid on the slide seat 7, an assembly hole 9 is arranged in the middle of the probe mounting plate 5, and a longitudinal blind hole 10 is arranged on the probe mounting plate 5 near the assembly hole 9, a limit pin 11 is inlaid on the probe mounting plate 5 near the longitudinal blind hole 10, a quick release pin 12 is movably sleeved in the longitudinal blind hole 10, and the quick release pin 12 is inlaid with the longitudinal blind hole 10 A compression spring 13 is arranged between the bottoms of the longitudinal blind holes 10, and an end of the quick-release pin 12 close to the compression spring 13 is provided with an inclined shoulder 14. The material cup base 2 is used for product placement. When the quick-release pin 12 is rotated and pulled outward, the quick-release pin 12 is automatically pushed outward under the elastic tension of the compression spring 13. At this time, the inclined shoulder 14 on the quick-release pin 12 contacts the conical shoulder 20 on the limit pin 11 and the plug-in column 19 respectively, and the three are pressed against each other to form an interlocking, thereby locking the material cup base 2, which can realize rapid clamping and fixing, and is suitable for three-point measurement of the flatness of bearings of different diameters and specifications, thereby improving the utilization rate of the device and reducing the production and management costs of the clamping tooling. The top of the probe mounting disk 5 is movably connected with an equal-dividing disk 15, and the equal-dividing disk 15 is The side of the dividing plate 15 is threadedly connected with a locking screw 16, and the dividing plate 15 is fastened to the probe mounting plate 5 by the locking screw 16. A through hole 17 is provided in the middle of the dividing plate 15, and strip holes 18 are evenly distributed on the dividing plate 15. After the product is placed stably, the plane formed by the three-point trigger probes 8 on the actual measured surface that are far apart is used as the evaluation reference plane, the locking screw 16 is loosened, and the dividing plate 15 is rotated to make the tiny probe move parallel to the product surface, and transmit the signal to the upper computer for processing and analysis. The flatness is evaluated by comparing the deviation between the measured values ​​of each point on the product surface and the ideal plane, and the surface flatness of the product can be accurately detected. The lower part of the cup base 2 is provided with a plug-in column 19, and the lower part of the plug-in column 19 is provided with a conical surface The concave shoulder 20, the plug-in column 19 passes through the through hole 17 and is plugged into the assembly hole 9, and contacts the inclined convex shoulder 14 of the quick-release pin 12. The upper slide grooves 21 are evenly distributed on the material cup base 2. The top of the trigger probe 8 passes through the strip hole 18 and the upper slide groove 21 in turn, and extends upward from the top of the material cup base 2. In the continuous measurement process, it is only necessary to place the subsequent bearing to be measured directly on the material cup base 2, and directly start the measurement program of the three-element point method, and quickly, accurately and standardizedly complete the measurement task of batch bearings, eliminating the cumbersome steps in the traditional measurement method that each measurement of a bearing requires the operator to manually step on the point, adjust and confirm the spatial position of the bearing in the coordinate system before starting the measurement program, thereby improving the operation efficiency and measurement accuracy.It reduces the labor intensity of operators and provides a unified measurement benchmark for bearings of the same specification.

[0034] As a specific technical solution of this embodiment, a first positioning column 22 is embedded on the top of the fixing seat 1 , a first positioning hole 23 is provided on the chassis 3 , and the first positioning column 22 is inserted into the first positioning hole 23 .

[0035] In this embodiment, the first positioning column 22 and the first positioning hole 23 are used to position the chassis 3 and the fixing seat 1 during assembly to ensure that the chassis 3 is in the correct position.

[0036] As a specific technical solution of this embodiment, the longitudinal blind hole 10 is connected to the inner ring wall of the assembly hole 9 , and the limit pin 11 is connected to the inner ring wall of the longitudinal blind hole 10 .

[0037] In the present embodiment, the tail end portion of the quick-release pin 12 is threadedly connected to the longitudinal blind hole 10. When the quick-release pin 12 is rotated and pulled outward, the quick-release pin 12 is automatically pushed outward a certain distance under the elastic tension of the compression spring 13. At this time, the inclined boss 14 on the quick-release pin 12 contacts with the limit pin 11 and the conical shoulder 20 on the plug-in column 19 respectively, and the three are pressed against each other to form an interlocking, thereby locking the material cup base 2. Conversely, the quick-release pin 12 is rotated and pushed inward, and the inclined boss 14 on the quick-release pin 12 is separated from the limit pin 11 and the conical shoulder 20 on the plug-in column 19 respectively, thereby unlocking the material cup base 2.

[0038] As a specific technical solution of this embodiment, waist-shaped holes 24 are distributed on the chassis 3 , and the lower part of the trigger probe 8 passes downward through the waist-shaped holes 24 .

[0039] In this embodiment, the waist-shaped hole 24 is designed to avoid position, so as not to cause structural interference when the trigger probe 8 is moved.

[0040] As a specific technical solution of this embodiment, second positioning columns 25 are embedded at both ends of the chassis 3 , and second positioning holes 26 are provided at both ends of the probe mounting plate 5 , and the second positioning columns 25 are inserted into the second positioning holes 26 .

[0041] In this embodiment, the second positioning column 25 and the second positioning hole 26 are used to position the probe mounting plate 5 and the base plate 3 during assembly to ensure that the probe mounting plate 5 is in the correct position.

[0042] As a specific technical solution of this embodiment, threaded holes 27 are provided at both ends of the probe mounting plate 5 , and the head end of the handle 4 is threadedly connected to the chassis 3 through the threaded holes 27 .

[0043] In this embodiment, the handle 4 is used to connect and fix the probe mounting plate 5 and the chassis 3 to ensure the connection stability between the two.

[0044] As a specific technical solution of this embodiment, an annular groove 28 is provided on the outer wall of the probe mounting disk 5, and claws 29 are provided around the dividing disk 15, and are movably connected to the probe mounting disk 5 through the claws 29 and the annular groove 28.

[0045] In this embodiment, the equal-dividing disk 15 is slid onto the probe mounting disk 5 through the cooperation between the claws 29 and the annular groove 28 , so as to facilitate the subsequent operation of the equal-dividing disk 15 .

[0046] As a specific technical solution of this embodiment, the locking screw 16 is threadedly installed on the claw 29 so that the claw 29 is tightly connected to the annular groove 28.

[0047] In this embodiment, the locking screw 16 is used to fasten the dividing plate 15 to the probe mounting plate 5, and it can be loosened when in use.

[0048] As a specific technical solution of this embodiment, a test product 30 is placed on the material cup base 2 , and the top of the trigger probe 8 contacts the bottom surface of the test product 30 .

[0049] In this embodiment, the main function of the trigger probe 8 is to measure the geometric size and shape of the workpiece surface. The working principle is to connect it with a special trigger mechanism through an internal closed active circuit. When the probe needle of the probe contacts the workpiece surface, it will produce a slight swing or movement, causing the circuit state to change and emit sound and light signals to indicate the working state of the probe. This design enables the trigger probe to accurately measure the size and shape of the workpiece and ensure the accuracy of processing.

[0050] The working principle and use process of the present invention are as follows: when in use, the material cup base 2 is used for product placement, and the tail end of the quick-release pin 12 is threadedly connected to the longitudinal blind hole 10. When the quick-release pin 12 is rotated and pulled outward, the quick-release pin 12 is automatically pushed outward a certain distance under the elastic tension of the compression spring 13. At this time, the inclined boss 14 on the quick-release pin 12 contacts the limiting pin 11 and the conical shoulder 20 on the plug-in column 19 respectively, and the three are pressed against each other to form an interlocking, thereby locking the material cup base 2. Conversely, the quick-release pin 12 is rotated and pushed inward, and the inclined boss 14 on the quick-release pin 12 is separated from the conical shoulder 20 on the limiting pin 11 and the plug-in column 19 respectively, thereby unlocking the material cup base 2. It is suitable for three-point measurement of the flatness of bearings with different diameters and specifications, which improves the utilization rate of the device and ensures stable product placement. After determination, the plane formed by the three-point trigger probe 8 on the actual measured surface that is far apart is used as the evaluation reference plane, the locking screw 16 is loosened, and the dividing disk 15 is rotated to make the tiny probe move parallel to the product surface, and transmit the signal to the host computer for processing and analysis. The flatness is evaluated by comparing the deviation between the measured values ​​of each point on the product surface and the ideal plane. In the continuous measurement process, it is only necessary to place the subsequent bearing to be measured directly on the material cup base 2, and directly start the measurement program of the three-point method, so as to complete the measurement task of batch bearings quickly, accurately and in a standardized manner, eliminating the tedious steps in the traditional measurement method that each bearing needs to be measured manually, and the operator needs to re-step on the points, adjust and confirm the spatial position of the bearing in the coordinate system before starting the measurement program, thereby improving the operation efficiency and measurement accuracy.

[0051] In summary, the wheel hub bearing quick clamping and self-aligning device, the material cup base 2 is used for product placement, when the quick release pin 12 is rotated and pulled outward, the quick release pin 12 will be automatically pushed outward under the elastic tension of the compression spring 13, at this time, the inclined convex shoulder 14 on the quick release pin 12 is in contact with the conical concave shoulder 20 on the limit pin 11 and the plug-in column 19 respectively, and the three are pressed against each other to form an interlocking, thereby locking the material cup base 2, which can realize quick clamping and fixing, and is suitable for three-point measurement of the flatness of bearings with different diameters, thereby improving the utilization rate of the device and reducing the production and management costs of the clamping tooling; after the product is placed stably, the plane formed by the three-point trigger probe 8 on the actual measured surface that is far apart is used as the evaluation reference plane, the locking screw 16 is loosened, and the dividing disk 15 is rotated. , so that the tiny probe moves parallel to the surface of the product and transmits the signal to the host computer for processing and analysis. By comparing the deviation between the measured values ​​of each point on the product surface and the ideal plane, the flatness is evaluated, and the surface flatness of the product can be accurately detected. In the continuous measurement process, it is only necessary to place the subsequent bearing to be measured directly on the material cup base 2, and directly start the measurement program of the three-point method, so as to complete the measurement task of batch bearings quickly, accurately and in a standardized manner, eliminating the tedious steps of the traditional measurement method that each time a bearing is measured, the operator needs to manually step on the point, adjust and confirm the spatial position of the bearing in the coordinate system before starting the measurement program. The operation efficiency and measurement accuracy are improved, the labor intensity of the operators is reduced, and the measurement of bearings of the same specification has a unified measurement benchmark.

[0052] The above description and the accompanying drawings sufficiently illustrate the embodiments of the present disclosure to enable those skilled in the art to practice them. Other embodiments may include structural and other changes. The embodiments represent only possible variations. Unless explicitly required, individual components and functions are optional, and the order of operations may vary. Portions and features of some embodiments may be included in or replace portions and features of other embodiments. The embodiments of the present disclosure are not limited to the structures described above and shown in the accompanying drawings, and various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

Claims

1. A wheel hub bearing quick clamping and centering device, comprising a fixing seat (1) and a material cup base (2), characterized in that: The top of the fixing seat (1) is mounted with a chassis (3) by bolts, and handles (4) are threadedly connected to the two ends of the bottom of the chassis (3). A probe mounting plate (5) is arranged on the chassis (3), and the probe mounting plate (5) is fastened to the chassis (3) by the handles (4). A lower sliding groove (6) is distributed on the probe mounting plate (5), and a slide seat (7) is slidably connected in the lower sliding groove (6). A trigger probe (8) is embedded on the slide seat (7). An assembly hole (9) is arranged in the middle of the probe mounting plate (5), and a longitudinal blind hole (10) is arranged on the probe mounting plate (5) near the assembly hole (9). A limit pin (11) is embedded in the probe mounting plate (5) near the longitudinal blind hole (10); a quick release pin (12) is movably mounted in the longitudinal blind hole (10); a compression spring (13) is arranged between the quick release pin (12) and the bottom of the longitudinal blind hole (10); an inclined boss (14) is arranged at one end of the quick release pin (12) near the compression spring (13); and a dividing plate (15) is movably connected to the top of the probe mounting plate (5); A through hole (17) is provided in the middle of the dividing plate (15), and strip holes (18) are evenly distributed on the dividing plate (15); a plug-in column (19) is provided at the lower part of the material cup base (2), and a conical concave shoulder (20) is provided at the lower part of the plug-in column (19); the plug-in column (19) passes through the through hole (17) and is plugged into the assembly hole (9), and contacts the inclined shoulder (14) of the quick-release pin (12); upper slide grooves (21) are evenly distributed on the material cup base (2); the top end of the trigger probe (8) passes through the strip hole (18) and the upper slide groove (21) in sequence, and extends upward out of the top of the material cup base (2).

2. A hub bearing quick clamping and self-aligning device according to claim 1, characterized in that: A first positioning column (22) is inlaid on the top of the fixing seat (1), and a first positioning hole (23) is provided on the chassis (3); The first positioning column (22) is inserted into the first positioning hole (23).

3. The wheel hub bearing quick clamping and self-aligning device according to claim 1, characterized in that: The longitudinal blind hole (10) is connected to the inner ring wall of the assembly hole (9), and the limit pin (11) is connected to the inner ring wall of the longitudinal blind hole (10).

4. The wheel hub bearing quick clamping and centering device according to claim 1, characterized in that: The chassis (3) is provided with waist-shaped holes (24), and the lower part of the trigger-type probe (8) passes downward through the waist-shaped holes (24).

5. The wheel hub bearing quick clamping and self-aligning device according to claim 1, characterized in that: Second positioning columns (25) are inlaid at both ends of the chassis (3), and second positioning holes (26) are provided at both ends of the probe mounting plate (5); The second positioning column (25) is inserted into the second positioning hole (26).

6. The wheel hub bearing quick clamping and centering device according to claim 1, characterized in that: Threaded holes (27) are provided at both ends of the probe mounting plate (5), and the head end of the handle (4) is threadedly connected to the chassis (3) through the threaded holes (27).

7. The wheel hub bearing quick clamping and centering device according to claim 1, characterized in that: An annular groove (28) is provided on the outer wall of the probe mounting plate (5), and claws (29) are provided around the equally divided plate (15), and are movably engaged with the probe mounting plate (5) through the claws (29) and the annular groove (28).

8. The wheel hub bearing quick clamping and centering device according to claim 7, characterized in that: The side edge of the dividing plate (15) is threadedly connected with a locking screw (16), and the dividing plate (15) is fixedly connected to the probe mounting plate (5) via the locking screw (16).

9. A hub bearing quick clamping and centering device according to claim 8, characterized in that: The locking screw (16) is threadedly mounted on the claw (29) so that the claw (29) is tightly connected to the annular groove (28).

10. The wheel hub bearing quick clamping and centering device according to claim 1, characterized in that: A test product (30) is placed on the material cup base (2), and the top end of the trigger probe (8) is in contact with the bottom surface of the test product (30).

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