A hub bearing flange run-out detection method and apparatus

Abstract

The present application relates to the technical field of hub bearing, in particular to a kind of hub bearing flange plate run-out detection method and device.Method comprising positioning hub bearing, to make the axis of hub bearing be vertically arranged, first end face is set up upwards, second end face is set up downwards.Based on hub bearing positioning completion, first detection component is positioned, to make auxiliary detection plate and first end face adhere, first detector and the upper surface of auxiliary detection plate abut.Based on hub bearing positioning completion, second detection component is positioned, to make the first abutment of detection rod unit and second end face abut.Based on first detection component and second detection component are positioned completion, rotate flange plate until reach preset number of turns or preset time length, obtain the first detection data of first detector, obtain the second detection data of second detector.This solves the problem that two end faces of flange plate are not easy to detect simultaneously.

Description

Technical Field

[0001] This invention relates to the field of wheel hub bearing technology, and more specifically, to a method and apparatus for detecting the runout of a wheel hub bearing flange. Background Technology

[0002] In the manufacturing process of wheel hub bearings, the flange is a key connecting component, and the machining accuracy of its two side surfaces has a significant impact on the overall assembly quality and performance of the wheel hub bearing. Therefore, inspecting the two side surfaces of the wheel hub bearing flange is an essential step.

[0003] However, simultaneous inspection of the two end faces of a flange is difficult, mainly because the two end faces are in relative positions, requiring separate positioning and measurement during inspection. This makes synchronous inspection of the two end faces challenging, resulting in slow inspection efficiency. Summary of the Invention

[0004] To address the problem of simultaneous detection of both end faces of a flange, this invention provides a method and apparatus for detecting runout of a wheel hub bearing flange.

[0005] In a first aspect, the present invention provides a method for detecting the runout of a wheel hub bearing flange, the method comprising:

[0006] The hub bearing is positioned so that its axis is vertical, with the first end face facing upward and the second end face facing downward; wherein, the first end face is the end face of the flange away from the outer ring unit; and the second end face is the end face of the flange facing the outer ring unit.

[0007] Based on the completion of the wheel hub bearing positioning, the first detection component is positioned so that the auxiliary detection plate is in contact with the first end face and the first detector abuts against the upper surface of the auxiliary detection plate.

[0008] Based on the completion of the wheel hub bearing positioning, the second detection component is positioned so that the first abutting part of the detection rod unit abuts against the second end face; wherein, the second detector is connected to the second abutting part of the detection rod unit; the detection rod unit is rotatably arranged around a first axis; the first axis is horizontally arranged; there is a first distance between the first abutting part and the first axis; there is a second distance between the second abutting part and the first axis; the second detector has an elastic force on the second abutting part, so that the first abutting part has an upward tendency to move;

[0009] Once both the first and second detection components are positioned, the flange is rotated until a preset number of revolutions or a preset duration is reached to obtain the first detection data of the first detector and the second detection data of the second detector.

[0010] In some embodiments, the positioning of the second detection component based on the positioning of the wheel hub bearing, so that the first abutting portion of the detection rod unit abuts against the second end face, includes:

[0011] Based on the completion of the wheel hub bearing positioning, the second detection component is positioned so that the first abutting part of the detection rod unit abuts against the second end face, and the first vertical line is set horizontally; wherein, the first vertical line is the vertical line from the first abutting part to the first axis.

[0012] In some embodiments, the maximum angle at which the first vertical line swings downward during the test is determined based on the second detection data;

[0013] Based on the maximum angle, the second detection component is repositioned so that the first vertical line swings upward around the first axis to a first included angle; the first included angle is greater than 0° and less than the maximum angle;

[0014] Once the second detection component has been repositioned, the flange is rotated to the preset number of turns or the preset duration, and the second detection data of the second detector is acquired again to update the second detection data.

[0015] In some embodiments, in the step of repositioning the second detection component based on the maximum angle so that the first vertical line swings upward about the first axis to a first included angle, the ratio of the first included angle to the maximum angle is 30% to 45%.

[0016] In some embodiments, after the second detection data update is completed, the process returns to the step of determining the maximum downward swing angle of the first vertical line during the test based on the second detection data, until the difference between the maximum angle and twice the first included angle is less than a preset error, and the loop ends.

[0017] In a second aspect, the present invention provides a detection device applied to the wheel hub bearing flange runout detection method described in any one of the first aspects, the detection device comprising:

[0018] A positioning assembly for positioning the end of the inner ring unit of the hub bearing away from the flange;

[0019] A first detection component, comprising an auxiliary detection plate and a first detector; the auxiliary detection plate is used to fit against a first end face; the first end face is the end face of the flange of the wheel hub bearing facing away from the outer ring unit; the first detector is used to detect the runout data of the auxiliary detection plate;

[0020] The second detection assembly includes a detection rod unit, a second detector, and an adjustment base. The detection rod unit is rotatably connected to the adjustment base about a first axis. The first axis is horizontally oriented. The position of the adjustment base is adjustable. The detection rod unit has a first abutment portion and a second abutment portion. The first abutment portion is used to abut against a second end face. The second end face is the end face of the flange facing the outer ring unit. The second detector is used to detect the runout data of the second abutment portion.

[0021] In some embodiments, the detection rod unit includes a first detection rod and a second detection rod; the first detection rod and the second detection rod are fixedly connected; both the first detection rod and the second detection rod are rotatably arranged around the first axis; the end of the first detection rod away from the first axis is a first abutting portion; and the end of the second detection rod away from the first axis is a second abutting portion.

[0022] In some embodiments, the length of the first detection rod is less than the length of the second detection rod.

[0023] In some embodiments, the first detection rod is perpendicular to the second detection rod.

[0024] In some embodiments, the second detection component further includes a limiting unit; the limiting unit is fixed relative to the positioning component; the limiting unit is used to limit the swing distance of the second abutment portion away from the second detector.

[0025] To address the problem of simultaneous inspection of both end faces of a flange, this invention offers the following advantages:

[0026] The wheel hub bearing is positioned so that its axis is vertical, with the first end face facing upwards and the second end face downwards. The first detection component is then positioned so that the auxiliary detection plate is in contact with the first end face and the first detector is in contact with the upper surface of the auxiliary detection plate, allowing for the detection of runout of the first end face. Since the first end face of the wheel hub bearing is in contact with the vehicle wheel hub when assembled, the main factor affecting the bearing's performance is the height of the protrusion during the flatness test of the first end face. The auxiliary detection plate facilitates the coverage of any pits on the first end face, thus enabling accurate detection of the protrusion height. The second detection component is positioned so that the first abutting part of the detection rod unit abuts against the second end face. The elastic force of the second detector on the second abutting part of the detection rod unit keeps the first abutting part moving upward to stably abut against the second end face. The runout of the second end face is detected by rotating the detection rod unit around the horizontally set first axis and by setting the distance between the first abutting part and the first axis and the distance between the second abutting part and the first axis. After rotating the flange to a preset number of turns or for a preset time, the first detection data of the first detector and the second detection data of the second detector are obtained, so that the runout of the first end face and the second end face of the flange can be detected simultaneously. Attached Figure Description

[0027] Figure 1 A schematic flowchart of a wheel hub bearing flange runout detection method according to one embodiment is shown;

[0028] Figure 2 A schematic diagram of the structure of a detection device according to one embodiment is shown;

[0029] Figure 3 It shows Figure 2 The detection device in the middle contains a cross-sectional view of the wheel hub bearing flange;

[0030] Figure 4 It shows Figure 3 A larger image is shown at point A in the image.

[0031] Reference numerals: Positioning component 10; Base unit 11; First positioning seat 111; Second positioning seat 112; First arc-shaped surface 113; Second arc-shaped surface 114; Drive unit 12; First detection component 20; Auxiliary detection plate 21; Detection plate body 211; Protruding ring 212; First detector 22; Adjusting bracket 23; Second detection component 30; Detection rod unit 31; First detection rod 311; Second detection rod 312; Second detector 32; Adjusting base 33; First rotating shaft 34; Limiting unit 35; Frame assembly 40; Hub bearing 50; Outer ring unit 51; Inner ring unit 52; Inner ring body 521; Flange 522; Mating inner ring 523; Rolling element 53. Detailed Implementation

[0032] The present disclosure will now be discussed with reference to several exemplary embodiments. It should be understood that these embodiments are discussed only to enable those skilled in the art to better understand and thus implement the present disclosure, and are not intended to imply any limitation on the scope of the disclosure.

[0033] As used herein, the term "comprising" and its variations are to be interpreted as open-ended terms meaning "including but not limited to". The term "based on" is to be interpreted as "at least partially based on". The terms "one embodiment" and "an embodiment" are to be interpreted as "at least one embodiment". The term "another embodiment" is to be interpreted as "at least one other embodiment". The terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "vertical", "horizontal", "lateral", "longitudinal", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. These terms are primarily for the purpose of better describing this application and its embodiments and are not intended to limit the indicated devices, elements, or components to having a specific orientation or being constructed and operated in a specific orientation. Furthermore, some of the above terms may be used to indicate other meanings besides orientations or positional relationships; for example, the term "upper" may in some cases indicate a dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in this application according to the specific circumstances. In addition, the terms "installed", "set up", "equipped with", "connected", and "linked" should be interpreted broadly. For example, it 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 an internal connection between two devices, elements, or components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances. Furthermore, the terms "first," "second," etc., are mainly used to distinguish different devices, elements, or components (the specific types and structures may be the same or different), and are not used to indicate or imply the relative importance or quantity of the indicated devices, elements, or components. Unless otherwise stated, "a plurality of" means two or more.

[0034] In the manufacturing process of the wheel hub bearing 50, the flange 522, as a key connecting component, has a significant impact on the overall assembly quality and performance of the wheel hub bearing 50 due to the machining accuracy of its two side surfaces. Therefore, inspecting both side surfaces of the flange 522 is an essential step. However, simultaneous inspection of the two end faces of the flange 522 is difficult, mainly because they are in relative positions, requiring separate positioning and measurement during inspection. This makes simultaneous inspection of the two end faces challenging, resulting in slow inspection efficiency.

[0035] Example 1:

[0036] To address the aforementioned problems, this embodiment provides a method for detecting the runout of the wheel hub bearing 50 flange 522. For example... Figure 2 , Figure 3 , Figure 4 As shown, the detection device involved in the wheel hub bearing 50 flange 522 runout detection method in this embodiment includes a positioning component 10, a first detection component 20, and a second detection component 30.

[0037] The positioning assembly 10 is used to position the end of the inner ring unit 52 of the hub bearing 50 away from the flange 522. The first detection assembly 20 includes an auxiliary detection plate 21 and a first detector 22. The auxiliary detection plate 21 is used to fit against the first end face, thereby transmitting the runout of the first end face to the first detector 22 through the auxiliary detection plate 21, realizing the detection of the runout of the first end face. The second detection assembly 30 includes a detection rod unit 31, a second detector 32, and an adjusting base 33. The adjusting base 33 facilitates the adjustment of the contact height between the detection rod unit 31 and the second end face. The detection rod unit 31 has a first contact portion and a second contact portion, the first contact portion being used to contact the second end face. The second end face is the end face of the flange 522 facing the outer ring unit 51. The second detector 32 is used to detect the runout data of the second contact portion.

[0038] In this embodiment, as Figure 1 As shown, the runout detection method for wheel hub bearing 50 flange 522 includes steps S10 to S40, which will be described in detail below:

[0039] Step S10 involves positioning the hub bearing 50 so that its axis is vertical, with its first end face facing upwards and its second end face facing downwards. Specifically, the first end face is the end face of the flange 522 facing away from the outer ring unit 51, and the second end face is the end face of the flange 522 facing the outer ring unit 51. This clearly defines the spatial orientation of the hub bearing 50 and the first and second end faces of the flange 522, providing an accurate reference for the subsequent positioning of the first detection component 20 and the second detection component 30, ensuring the accuracy of the detection position.

[0040] Step S20: Based on the positioning of the wheel hub bearing 50, the first detection component 20 is positioned so that the auxiliary detection plate 21 is in contact with the first end face, and the first detector 22 abuts against the upper surface of the auxiliary detection plate 21. This allows the runout of the first end face to be transmitted to the first detector 22 through the auxiliary detection plate 21, thereby detecting the runout of the first end face. Since the first end face of the wheel hub bearing 50 is in contact with the vehicle wheel hub when assembled, the main factor affecting the working performance of the wheel hub bearing 50 is the height of the protrusion in the flatness detection of the first end face. The auxiliary detection plate 21 can easily cover the pits on the first end face, thus accurately detecting the height of the protrusion.

[0041] In step S30, based on the positioning of the hub bearing 50, the second detection component 30 is positioned so that the first abutment portion of the detection rod unit 31 abuts against the second end face. The second detector 32 is connected to the second abutment portion of the detection rod unit 31. The detection rod unit 31 is rotatably arranged around a first axis, which is horizontal. A first distance exists between the first abutment portion and the first axis, and a second distance exists between the second abutment portion and the first axis, forming a lever structure. Simultaneously, the second detector 32 exerts an elastic force on the second abutment portion, causing the first abutment portion to tend to move upwards. This transmits the runout of the second end face through the detection rod unit 31 to the second detector 32, thus detecting the runout of the second end face. Furthermore, if the second detection component 30 includes a limiting unit 35, the second abutment portion must also abut against the limiting unit 35.

[0042] Step S40: Based on the completion of positioning of both the first detection component 20 and the second detection component 30, the flange 522 is rotated until a preset number of revolutions or a preset duration is reached to fully reflect the runout of the first and second end faces during the rotation of the flange 522. At the same time, the first detection data of the first detector 22 and the second detection data of the second detector 32 are acquired, so as to realize the simultaneous detection of the runout of the first and second end faces of the flange 522, thereby improving the efficiency of runout detection of the flange 522.

[0043] Further, step S30 includes step S31, in which the runout detection method for the hub bearing 50 flange 522 is executed sequentially through steps S10, S20, S31, and S40. Step S31 will be described in detail below:

[0044] Step S31: Based on the positioning of the hub bearing 50, the second detection component 30 is positioned so that the first abutment part of the detection rod unit 31 abuts against the second end face, and the first vertical line is set horizontally. The first vertical line is perpendicular to the first axis from the first abutment part. By setting the first vertical line horizontally, the vibration direction of the second end face runout detection is made closer to the linear velocity direction of the swing path of the first abutment part. This allows the runout of the second end face to be transmitted more accurately to the second detector 32 through the detection rod unit 31, improving the accuracy of the second detection data and facilitating better detection of the second end face runout.

[0045] In some embodiments, the runout detection method for the wheel hub bearing 50 flange 522 further includes steps S50 to S70. The runout detection method for the wheel hub bearing 50 flange 522 executes steps S10, S20, S31, S40, S50, S60, and S70 sequentially. Steps S50 to S70 will be described in detail below:

[0046] Step S50: Based on the second detection data, determine the maximum downward swing angle of the first vertical line during the test. This step allows for the calculation of the downward swing limit of the first vertical line based on the second detection data, providing accurate data for the subsequent positioning adjustment of the second detection component 30 and ensuring the rationality of the adjustment angle.

[0047] In step S60, based on the maximum angle, the second detection component 30 is repositioned so that the first vertical line swings upward around the first axis to a first included angle, which is greater than 0° and less than the maximum angle calculated in step S50. This makes the tangent of the movement trajectory of the first contact portion as close to the vertical direction as possible, thereby creating conditions for improving the accuracy of the detection results.

[0048] In step S70, based on the repositioning of the second detection component 30, the flange 522 is rotated to a preset number of turns or a preset duration, and the second detection data of the second detector 32 is acquired again to update the second detection data. By updating the second detection data, the detection results of the adjusted second detection component 30 can be reflected, further ensuring the accuracy of the detection results. It should be understood that since the tangent of the movement trajectory of the first abutment part is closer to the vertical direction, the updated second detection data can calculate a larger range of angles of rotation of the first abutment part around the first axis, thus making the flatness detection effect of the second end face more obvious.

[0049] Furthermore, in step S60, the ratio of the first included angle to the maximum angle is 30% to 45%. This allows the initial position of the first vertical line to be quickly adjusted to the optimal position, so that the middle position of the swing range of the first vertical line during the detection process is close to the horizontal line.

[0050] In some embodiments, the runout detection method for the wheel hub bearing 50 flange 522 further includes step S80. The runout detection method for the wheel hub bearing 50 flange 522 executes steps S10, S20, S31, S40, S50, S60, S70, and S80 sequentially. Step S80 will be described in detail below:

[0051] Step S80: After the second detection data update is complete, return to the step of determining the maximum downward swing angle of the first vertical line during the test based on the second detection data, until the difference between the maximum angle and twice the first included angle is less than a preset error, and then end the loop. By repeatedly returning to execute the step of determining the maximum angle and looping until the difference between the maximum angle and twice the first included angle is less than the preset error, the second detection data becomes more accurate and reliable, further improving the accuracy of the second end face runout detection. Preferably, the difference between the maximum angle and twice the first included angle is less than the preset error, and the preset error is close to 0.

[0052] Example 2:

[0053] In this embodiment, as Figure 2 , Figure 3 , Figure 4 As shown, this application provides a detection device for detecting the runout of the flange 522 of the hub bearing 50 in any of the embodiments of the first embodiment. The detection device includes a positioning component 10, a first detection component 20, and a second detection component 30.

[0054] The positioning component 10 is used to position the end and circumferential surface of the inner ring unit 52 of the wheel hub bearing 50 away from the flange 522, thereby providing stable support for the wheel hub bearing 50 and ensuring that the position of the wheel hub bearing 50 is fixed during the testing process.

[0055] The first detection assembly 20 includes an auxiliary detection plate 21 and a first detector 22. The auxiliary detection plate 21 is used to fit against the first end face, thereby transmitting the runout of the first end face to the first detector 22 to detect the runout of the first end face. The first end face is the end face of the flange 522 of the wheel hub bearing 50 that faces away from the outer ring unit 51.

[0056] The second detection assembly 30 includes a detection rod unit 31, a second detector 32, and an adjustment base 33. The detection rod unit 31 and the adjustment base 33 are rotatably connected about a first axis, which is horizontally oriented. The position of the adjustment base 33 is adjustable, facilitating the adjustment of the contact height between the detection rod unit 31 and the second end face, as well as the horizontal position adjustment. The detection rod unit 31 has a first contact portion and a second contact portion. The first contact portion is used to contact the second end face. The second end face is the end face of the flange 522 facing the outer ring unit 51. The second detector 32 is used to detect the runout data of the second contact portion. In this way, the runout of the second end face can be transmitted and captured by the second detector 32 using the first and second contact portions, realizing the detection of the runout of the second end face. This allows the runout of the first and second end faces of the flange 522 to be detected simultaneously, thereby improving the efficiency of the runout detection of the flange 522.

[0057] Furthermore, such as Figure 3 , Figure 4 As shown, the detection rod unit 31 includes a first detection rod 311 and a second detection rod 312. The first detection rod 311 and the second detection rod 312 are fixedly connected, and both are rotatably arranged around a first axis, forming an integral lever structure to ensure the consistency of their movements. Simultaneously, the end of the first detection rod 311 furthest from the first axis is a first abutment portion, and the end of the second detection rod 312 furthest from the first axis is a second abutment portion. Thus, the runout information of the second end face received by the first abutment portion is transmitted to the second abutment portion through the lever structure, and then the runout data of the second abutment portion is detected by the second detector 32, thereby detecting the runout data of the second end face.

[0058] Furthermore, such as Figure 3 , Figure 4 As shown, the length of the first detection rod 311 is less than the length of the second detection rod 312. The shorter length of the first detection rod 311, combined with the rotation of the first and second detection rods 312 around the first axis, forms a force-saving lever structure. This amplifies and transmits the second end face runout energy received by the first contact part to the second contact part, making it easier for the second detector 32 to capture subtle runout changes, improving the sensitivity and accuracy of the second end face runout detection, and thus enhancing the accuracy of the second detection data.

[0059] Furthermore, such as Figure 3 , Figure 4As shown, the first detection rod 311 is perpendicular to the second detection rod 312. The telescopic probe of the second detector 32 is set horizontally in the telescopic direction. This allows the tangent direction of the swing trajectory of the second abutment to be close to horizontal, thus directly reflecting the linear velocity motion of the second abutment to the telescopic probe's telescopic distance. This enables the second detector 32 to more accurately detect the runout data of the second abutment, improving the reliability of the runout detection of the second end face.

[0060] Furthermore, after the flange 522 is installed with the wheel hub bearing 50, the pits on the first end face surface do not easily affect the installation and mating movement of the flange 522 and the wheel hub bearing 50. Since the first end face of the wheel hub bearing 50 is in contact with the vehicle wheel hub when assembled, the main factor affecting the working performance of the wheel hub bearing 50 is the height of the protrusion during the flatness detection of the first end face. Using the auxiliary detection plate 21, the pits on the first end face can be easily covered, thus accurately detecting the height of the protrusion on the first end face. Therefore, to improve detection efficiency, it is only necessary to detect whether there are protrusions on the surfaces of the first and second end faces. Therefore, the second detection component 30 of this application also includes a limiting unit 35. Figure 3 As shown, the limiting unit 35 and the positioning component 10 are relatively fixed in position. The limiting unit 35 is used to limit the swing distance of the second abutment part away from the second detector 32, so that when the second end face is detected, the first vertical line will only swing downward around the first axis, preventing the second abutment part from getting stuck with any pits on the second end face during detection, or damaging the second end face. This ensures that the first abutment part always maintains effective contact with the second end face, while ensuring that the runout of the second end face is continuously transmitted to the second detector 32, further ensuring the stability of the runout detection of the second end face.

[0061] In other embodiments, the auxiliary detection plate 21 includes a detection plate body 211 and a convex ring 212. The shape of the detection plate body 211 is adapted to the shape of the first end face of the wheel hub bearing 50. The detection plate body 211 and the convex ring 212 are integrally formed. The convex ring 212 extends away from the detection plate body 211, so that the convex ring 212 abuts against the first detector 22 during detection. At the same time, the abutment surface between the convex ring 212 and the first detector 22 is a precision-machined surface, thereby ensuring the accuracy of the runout data acquired by the first detector 22.

[0062] The first detection component 20 includes an adjustment bracket 23, which can be used to adjust the height of the first detector 22, so that after the detection plate body 211 abuts against the first end face, the height of the first detector 22 can be adjusted so that the first detector 22 abuts against the convex ring 212 precisely.

[0063] The second detection component 30 includes a first rotating shaft 34, and a first detection rod 311 and a second detection rod 312 are both rotatably arranged around the first rotating shaft 34, so that the first detection rod 311 and the second detection rod 312 form an integral lever structure, thereby ensuring the consistency of the movement of the first detection rod 311 and the second detection rod 312.

[0064] The testing device also includes a frame assembly 40, which is connected to the positioning assembly 10, the first testing assembly 20 and the second testing assembly 30 respectively. The frame assembly 40 serves as a base for mounting each component, providing support for each component and ensuring that the wheel hub bearing 50 has sufficient stability during testing.

[0065] The hub bearing 50 also includes rolling elements 53 and a cage. The rolling elements 53 are located between the inner ring unit 52 and the outer ring unit 51. The rolling elements 53 reduce the friction between the inner ring unit 52 and the outer ring unit 51, thereby allowing the hub bearing 50 to rotate stably. The cage separates the rolling elements 53 by a certain distance, allowing them to move independently in their respective raceways, thus avoiding direct friction and collision between the rolling elements 53.

[0066] The inner ring unit 52 includes an inner ring body 521, a flange 522, and a mating inner ring 523. The flange 522, the inner ring body 521, and the mating inner ring 523 are arranged sequentially along the vertical and horizontal directions. The inner ring unit 52, the outer ring unit 51, the rolling elements 53, and the cage form a complete hub bearing 50.

[0067] The positioning assembly 10 includes a base unit 11 and a drive unit 12. The base unit 11 includes a first positioning seat 111, a second positioning seat 112, a first arcuate surface 113, and a second arcuate surface 114. The drive unit 12 can drive the first positioning seat 111 and the second positioning seat 112 to clamp and fix the flange 522 of the wheel hub bearing 50, and at the same time, the first arcuate surface 113 and the second arcuate surface 114 are used to position the inner ring unit 52 of the wheel hub bearing 50.

[0068] Those skilled in the art will understand that the above embodiments are specific examples of implementing this disclosure, and in practical applications, various changes can be made in form and detail without departing from the scope of this disclosure.

Claims

1. A method for detecting runout of a wheel hub bearing flange, characterized in that, The method for detecting the runout of the wheel hub bearing flange includes: The hub bearing is positioned so that its axis is vertical, with the first end face facing upward and the second end face facing downward; wherein, the first end face is the end face of the flange away from the outer ring unit; and the second end face is the end face of the flange facing the outer ring unit. Based on the completion of the wheel hub bearing positioning, the first detection component is positioned so that the auxiliary detection plate is in contact with the first end face and the first detector abuts against the upper surface of the auxiliary detection plate. Based on the completion of the wheel hub bearing positioning, the second detection component is positioned so that the first abutting part of the detection rod unit abuts against the second end face; wherein, the second detector is connected to the second abutting part of the detection rod unit; the detection rod unit is rotatably arranged around a first axis; the first axis is horizontally arranged; there is a first distance between the first abutting part and the first axis; there is a second distance between the second abutting part and the first axis; the second detector has an elastic force on the second abutting part, so that the first abutting part has an upward tendency to move; Once both the first and second detection components are positioned, the flange is rotated until a preset number of revolutions or a preset duration is reached to obtain the first detection data of the first detector and the second detection data of the second detector.

2. The method for detecting runout of a wheel hub bearing flange according to claim 1, characterized in that, The positioning of the second detection component, based on the positioning of the wheel hub bearing, to position the first abutment portion of the detection rod unit against the second end face includes: Based on the completion of the wheel hub bearing positioning, the second detection component is positioned so that the first abutting part of the detection rod unit abuts against the second end face, and the first vertical line is set horizontally; wherein, the first vertical line is the vertical line from the first abutting part to the first axis.

3. The method for detecting runout of a wheel hub bearing flange according to claim 2, characterized in that, The method for detecting runout of the wheel hub bearing flange also includes: Based on the second detection data, determine the maximum angle at which the first vertical line swings downward during the test; Based on the maximum angle, the second detection component is repositioned so that the first vertical line swings upward around the first axis to a first included angle; the first included angle is greater than 0° and less than the maximum angle; Once the second detection component has been repositioned, the flange is rotated to the preset number of turns or the preset duration, and the second detection data of the second detector is acquired again to update the second detection data.

4. The method for detecting runout of a wheel hub bearing flange according to claim 3, characterized in that, In the step of repositioning the second detection component based on the maximum angle so that the first vertical line swings upward around the first axis to the first included angle, the ratio of the first included angle to the maximum angle is 30% to 45%.

5. The method for detecting runout of a wheel hub bearing flange according to claim 3, characterized in that, The method for detecting runout of the wheel hub bearing flange also includes: Once the second detection data update is complete, return to the step of determining the maximum downward swing angle of the first vertical line during the test based on the second detection data, until the difference between the maximum angle and twice the first included angle is less than a preset error, and end the loop.

6. A detection device, applied to the wheel hub bearing flange runout detection method according to any one of claims 1-5, characterized in that, The detection device includes: A positioning assembly for positioning the end of the inner ring unit of the hub bearing away from the flange; A first detection component, comprising an auxiliary detection plate and a first detector; the auxiliary detection plate is used to fit against a first end face; the first end face is the end face of the flange of the wheel hub bearing facing away from the outer ring unit; the first detector is used to detect the runout data of the auxiliary detection plate; The second detection assembly includes a detection rod unit, a second detector, and an adjustment base. The detection rod unit is rotatably connected to the adjustment base about a first axis. The first axis is horizontally oriented. The position of the adjustment base is adjustable. The detection rod unit has a first abutment portion and a second abutment portion. The first abutment portion is used to abut against a second end face. The second end face is the end face of the flange facing the outer ring unit. The second detector is used to detect the runout data of the second abutment portion.

7. The detection device according to claim 6, characterized in that, The detection rod unit includes a first detection rod and a second detection rod; the first detection rod and the second detection rod are fixedly connected; both the first detection rod and the second detection rod are rotatably arranged around the first axis; the end of the first detection rod away from the first axis is a first abutting part; the end of the second detection rod away from the first axis is a second abutting part.

8. The detection device according to claim 7, characterized in that, The length of the first detection rod is less than the length of the second detection rod.

9. A detection device according to claim 7, characterized in that, The first detection rod is perpendicular to the second detection rod.

10. A detection device according to claim 6, characterized in that, The second detection component further includes a limiting unit; the limiting unit is fixed relative to the positioning component; the limiting unit is used to limit the swing distance of the second abutment portion away from the second detector.

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