A wheel hub assembly installation method and system

Abstract

The present invention relates to the technical field of vehicle wheel hubs, and in particular, to a method and system for installing a wheel hub assembly. The method comprises: step S10, based on the completion of positioning of the wheel hub assembly on the positioning seat, driving a first pressure head and a second pressure head to move toward the wheel hub assembly at a first speed. Step S20, based on the abutment of the first pressure head with the hub disk of the wheel hub assembly, driving the second pressure head to move toward the wheel hub assembly at a second speed. The force exerted by the first pressure head on the hub disk makes the force between the side of the hub disk away from the second pressure head and the positioning seat greater than the force between the side of the hub disk close to the second pressure head and the positioning seat. Step S30, based on the second pressure head, pressing the rivet bolt of the wheel hub assembly to the set position of the rivet hole of the wheel hub disk, completing the installation of the wheel hub assembly. This solves the problem of deformation of the positioning seat during the installation of the wheel hub assembly.

Description

Technical Field

[0001] The present invention relates to the technical field of vehicle wheel hubs, and in particular to a wheel hub assembly installation method and system. Background Art

[0002] The vehicle wheel hub assembly is made of a hub disc and a rivet bolt riveted together, and the hub assembly is fixed to the vehicle wheel through the rivet bolt. The hub disc is an important part of the vehicle wheel hub. The hub disc enables the wheel to be connected to the vehicle's suspension system and drive shaft, transmits power and supports the weight of the vehicle, ensures the stability and safety of the wheel, and enables the vehicle to run smoothly. The rivet bolts on the hub disc can effectively transmit the torque from the engine to the wheel, ensuring the effective transmission of power. The riveted structure can withstand various forces generated when the vehicle is driving, including radial force and axial force. The riveted structure is usually more durable than the traditional bolt connection, reducing maintenance costs and replacement frequency, making the installation of the hub disc more convenient and quick.

[0003] Usually, to ensure that the rivet bolt is riveted to the correct angle, it is necessary to ensure that the rivet bolt is perpendicular to the end face of the hub disc. However, since multiple rivet holes are spaced along the circumference of the hub disc, after placing the hub disc on the positioning seat, the hub disc is rotated to press the next one after riveting one rivet bolt. Usually, the pressing head only moves up and down, and the positioning seat is fixed during press-fitting. After pressing one rivet bolt, the hub disc is rotated to press the next one, and this cycle is repeated. Applying force to the same position of the positioning seat will cause deformation of the pressing position, resulting in skewed positioning of the hub disc. A skewed hub disc will cause a skewed rivet bolt. If pressed in this state, it will be difficult for the rivet bolt to be pressed into the rivet hole of the hub disc, or even impossible to press into the rivet hole, affecting the efficiency of installing the rivet bolt. Summary of the invention

[0004] In order to solve the problem of deformation of the positioning seat during the installation of the wheel hub assembly, the present invention provides a wheel hub assembly installation method and system.

[0005] In a first aspect, the present invention provides a method for installing a wheel hub assembly, the method comprising:

[0006] Step S10, based on the hub assembly being positioned on the positioning seat, driving the first pressing head and the second pressing head to move toward the hub assembly at a first speed;

[0007] Step S20, based on the abutment between the first pressing head and the hub disk of the wheel hub assembly, driving the second pressing head to move toward the wheel hub assembly at a second speed; wherein the force of the first pressing head pressing on the hub disk makes the acting force between the side of the hub disk away from the second pressing head and the positioning seat greater than the acting force between the side of the hub disk close to the second pressing head and the positioning seat;

[0008] Step S30: Based on the second pressing head, the rivet bolt of the wheel hub assembly is pressed to the set position of the rivet hole of the wheel hub disc to complete the installation of the wheel hub assembly.

[0009] In some embodiments, in step S20, the first pressing head abuts against a position of the central axis of the hub disc that is offset away from the second pressing head by a first set distance.

[0010] In some embodiments, the wheel hub assembly installation method further includes:

[0011] Step S21, based on the second pressure head moving toward the wheel hub assembly at the second speed, obtaining first pressure data, second pressure data, and third pressure data; wherein the first pressure data includes the force value between the wheel hub disc away from the second pressure head and the positioning seat, the second pressure data includes the force value between the first pressure head and the wheel hub disc, and the third pressure data includes the force value between the second pressure head and the wheel hub disc;

[0012] Step S22, based on the fact that the growth change rate of the third pressure data is greater than the growth change rate of the second pressure data by a first set value and the first pressure data is greater than a first set pressure, driving the second pressure head to move away from the hub disk by a second set distance;

[0013] Step S23, based on the second pressing head moving the second setting distance in a direction away from the hub disk, the second pressing head stops for a setting time;

[0014] Step S24: based on the second pressing head stopping for the set time, driving the second pressing head to move toward the hub disk.

[0015] In some embodiments, the wheel hub assembly installation method further includes step S221, and the step S221 includes:

[0016] Step S2212, based on the difference between the growth change rate of the third pressure data and the growth change rate of the second pressure data being less than or equal to a second set value and the first pressure data being less than or equal to a second set pressure, driving the correction rod to move toward the hub disk; wherein the correction rod is movably connected to the positioning seat; and the correction rod moves along the thickness direction of the hub disk;

[0017] Step S2212: based on the first pressure data being greater than the second set pressure, the correction rod stops moving.

[0018] In some embodiments, the wheel hub assembly installation method further includes step S222, and the step S222 includes:

[0019] Step S2221, based on the fact that the growth change rate of the third pressure data is greater than the growth change rate of the second pressure data by a third set value and the first pressure data is less than or equal to the third set pressure, driving the second pressure head to move away from the hub disk by a third set distance;

[0020] Step S2222, based on the second pressure head moving the third set distance in the direction away from the wheel hub, driving the correction rod to move the fourth set distance in the direction close to the second pressure head; wherein the correction rod is movably connected to the positioning seat; and the correction rod moves along the thickness direction of the wheel hub;

[0021] Step S2223, based on the correction rod moving the fourth set distance toward the second pressure head, driving the second pressure head to move toward the hub disk at a third speed and stopping the correction rod from moving;

[0022] Step S2224, based on the second pressing head pressing the riveting bolt to a first set angle, the correction rod moves toward the positioning seat at a fourth speed; wherein the third speed is less than the fourth speed;

[0023] Step S2225: based on the first pressure data being greater than the third set pressure, the correction rod stops moving.

[0024] In some embodiments, in step S2225, based on the first pressure data being greater than the third set pressure, the correction rod stops moving and the second pressure head moves toward the hub disk at a fifth speed; wherein the fifth speed is greater than the third speed.

[0025] In some embodiments, the wheel hub assembly installation method further includes:

[0026] Step S31, based on the second pressing head pressing the rivet bolt to the set position of the rivet hole, the second pressing head moves a fifth set distance away from the wheel hub;

[0027] Step S32, based on the second pressure head moving away from the hub disk by the fifth set distance, driving the hub disk to move toward the second pressure head;

[0028] Step S33, based on the hub plate moving toward the second pressing head until the bottom end of the rivet bolt is higher than the top end of the positioning seat, driving the hub plate to rotate in a set direction by a second set angle;

[0029] Step S34, based on the hub disc rotating in the set direction by the second set angle, driving the hub disc to move toward the positioning seat;

[0030] Step S35 , based on the hub disc moving toward the positioning seat until the hub disc abuts against the positioning seat, re-execute step S10 .

[0031] In some embodiments, the first speed is greater than the second speed.

[0032] In a second aspect, the present invention provides a wheel hub assembly installation system, the wheel hub assembly installation system is applied to any one of the wheel hub assembly installation methods described in the first aspect, the wheel hub assembly installation system comprising:

[0033] A wheel hub assembly, the wheel hub assembly comprising a wheel hub disc and a rivet bolt; the wheel hub disc comprising a disc body and a rivet hole; the rivet hole penetrates from one side of the disc body to the other side along the thickness direction of the disc body; the wheel hub assembly comprises an installation state; the installation state comprises an interference fit between the rivet bolt and the rivet hole;

[0034] A machine base assembly, the machine base assembly comprising a machine platform and a positioning seat; the positioning seat is detachably connected to the machine platform; the positioning seat is penetrated by a positioning hole along the axial direction of the positioning seat; the positioning hole is arranged corresponding to the riveting hole;

[0035] A pressing assembly, the pressing assembly comprising a fourth driving part, a driving rod, a first pressing head, an elastic part, and a second pressing head; the driving rod is slidably connected to the machine platform; the fourth driving part is drivingly connected to the driving rod, driving the driving rod to move toward or away from the hub disk; the elastic part is detachably connected to the driving rod; one end of the first pressing head is detachably connected to one end of the elastic part away from the driving rod, and the other end extends in a direction away from the driving rod; one end of the second pressing head is detachably connected to the driving rod, and the other end extends in a direction away from the driving rod;

[0036] The wheel hub assembly mounting system includes a first state, a second state, and a third state; the first state includes the disk body abutting against the positioning seat, the rivet hole is sleeved on the outer peripheral side of the rivet bolt, the first pressure head abuts against the disk body, and the second pressure head abuts against the rivet bolt; the second state includes the disk body abutting against the positioning seat, the rivet hole is sleeved on the outer peripheral side of the rivet bolt, the first pressure head is spaced apart from the disk body, and the second pressure head is spaced apart from the rivet bolt; the third state includes the first state including the disk body abutting against the positioning seat, the rivet hole is sleeved on the outer peripheral side of the rivet bolt, the first pressure head abuts against the disk body, and the second pressure head is spaced apart from the rivet bolt.

[0037] In some embodiments, the hub assembly mounting system further includes a rotation assembly, a correction assembly;

[0038] The rotating assembly includes a rotating table, a first driving part, and a second driving part; the first driving part is detachably connected to the machine table; the rotating table is drivingly connected to the first driving part, driving the rotating table to move along the thickness direction of the hub disk; the rotating table is drivingly connected to the second driving part, driving the rotating table to rotate along the circumferential direction of the hub disk;

[0039] The wheel hub assembly installation system further includes a fourth state; the fourth state includes the rotating platform driving the wheel hub plate to move toward the second pressing head until the bottom end of the riveting bolt is higher than the top end of the positioning seat;

[0040] The correction assembly includes a first sensor, a second sensor, a third sensor, a correction rod, and a third driving unit; the correction rod is movably connected to the positioning seat; the third driving unit is drivingly connected to the correction rod, driving the correction rod to move along the thickness direction of the hub disk; the first sensor is detachably connected to the machine; the first sensor is used to detect first pressure data; the second sensor is detachably connected to the machine; the second sensor is used to detect second pressure data; the third sensor is detachably connected to the machine; the third sensor is used to detect third pressure data; the first pressure data includes the force value between the side of the hub disk away from the second pressure head and the positioning seat, the second pressure data includes the force value between the first pressure head and the hub disk, and the third pressure data includes the force value between the second pressure head and the hub disk.

[0041] In order to solve the problem of deformation of the positioning seat during the installation of the wheel hub assembly, the present invention has the following advantages:

[0042] When the hub assembly is positioned on the positioning seat, that is, the hub assembly reaches the accurate installation position, the installation can begin. At this time, the first press head and the second press head can be driven to move toward the hub assembly at a first speed, so that the first press head can be abutted against the hub disk of the hub assembly in the future, so as to rivet the riveting bolt. When the first press head abuts against the hub disk of the hub assembly, the second press head can be driven to move toward the hub assembly at a second speed. The force of the first press head pressing on the hub disk can make the force between the side of the hub disk away from the second press head and the positioning seat greater than the force between the side of the hub disk close to the second press head and the positioning seat. In this way, the pressure on the corresponding position on the positioning seat during the subsequent press installation of the second press head can be balanced, the deformation of the positioning seat can be slowed down, and the end face of the hub disk can be prevented from tilting during the riveting process. In this way, the riveting bolt can be correctly riveted without deflection. When the second press head moves to abut against the riveting bolt, the force of the first press head on the hub disk can prevent the end face of the hub disk from tilting during the riveting process. When the positioning seat is deformed to partially concave downward, the wheel hub can be kept perpendicular to the second pressing head, so that the central axis of the rivet hole is in line with the central axis of the second pressing head. Therefore, the second pressing head can press the rivet bolt of the wheel hub assembly to the set position of the rivet hole of the wheel hub, and the rivet bolt will not be deflected by correct riveting during the riveting process, and the installation of the wheel hub assembly can be completed. In this way, the problem of deformation of the positioning seat during the installation of the wheel hub assembly can be solved. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] Figure 1 A flow chart of a method for installing a hub assembly according to an embodiment is shown;

[0044] Figure 2 A schematic diagram of a hub assembly mounting system according to an embodiment is shown;

[0045] Figure 3 A schematic diagram of a hub assembly according to an embodiment is shown;

[0046] Figure 4 A schematic diagram of a wheel hub assembly mounting system according to another embodiment is shown;

[0047] Figure 5 A schematic diagram of a wheel hub assembly mounting system according to another embodiment is shown;

[0048] Figure 6 A schematic diagram of a wheel hub assembly mounting system according to another embodiment is shown;

[0049] Figure 7 A schematic diagram of a hub assembly according to another embodiment is shown;

[0050] Figure 8 A schematic diagram of a wheel hub assembly mounting system according to another embodiment is shown.

[0051] Figure numerals: 01 hub assembly; 11 hub disk; 111 disk body; 112 rivet hole; 12 rivet bolt; 02 base assembly; 21 machine table; 22 positioning seat; 03 rotating assembly; 31 rotating table; 32 first driving unit; 33 second driving unit; 04 correction assembly; 41 first sensor; 42 correction rod; 05 pressing assembly; 51 fourth driving unit; 52 driving rod; 53 first pressing head; 54 second pressing head. DETAILED DESCRIPTION

[0052] 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, rather than implying any limitation on the scope of the present disclosure.

[0053] As used herein, the term "including" and its variants are to be interpreted as open-ended terms meaning "including but not limited to". The term "based on" is to be interpreted as "based at least in part 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 orientation or position relationship indicated by the terms "upper", "lower", "left", "right", "front", "back", "top", "bottom", "inner", "outer", "vertical", "horizontal", "lateral", "longitudinal" and the like is based on the orientation or position relationship shown in the accompanying drawings. These terms are mainly for better describing the present application and its embodiments, and are not used to limit the indicated devices, elements or components to have a specific orientation, or to be constructed and operated in a specific orientation. In addition, in addition to being used to indicate an orientation or position relationship, some of the above terms may also be used to indicate other meanings, such as the term "upper" may also be used to indicate a certain dependency or connection relationship in some cases. For those of ordinary skill in the art, the specific meanings of these terms in this application can be understood according to the specific circumstances. In addition, the terms "install", "set", "provided with", "connected" and "connected" should be understood in a broad sense. 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 directly connected, or indirectly connected 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 this application can be understood according to the specific circumstances. In addition, 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 and quantity of the indicated devices, elements or components. Unless otherwise specified, "plurality" means two or more.

[0054] The vehicle hub assembly 01 is formed by riveting a hub disc 11 and a rivet bolt 12, and the vehicle and the vehicle assembly are connected through the hub assembly 01. A plurality of rivet holes 112 are spaced apart along the circumference of the hub disc 11, and the hub disc 11 is placed on the positioning seat 22. Usually, the pressing head only moves up and down, and the positioning seat 22 is fixed during press-fitting. During the riveting process, after one rivet bolt 12 is riveted, the hub disc 11 is rotated to press the next one, and a force is applied to the same position of the positioning seat 22, which causes the pressure on the same pressed position to be greater than that on other positions, thereby accelerating the deformation of the pressed position, causing the hub disc 11 to be positioned crookedly, which may eventually lead to the rivet bolt 12 being skewed during installation, making it difficult for the rivet bolt 12 to be pressed into the rivet hole 112 of the hub disc 11, or even impossible to press into the rivet hole 112. Figure 8 As shown, the hub assembly 01 installation system may include the hub assembly 01, the base assembly 02, and the press-fit assembly 05. Figure 3 As shown, the hub assembly 01 may include a hub disc 11 and a rivet bolt 12. Figure 7 As shown, the hub disk 11 may include a disk body 111 and a rivet hole 112. The rivet hole 112 may penetrate from one side of the disk body 111 to the other side along the thickness direction of the disk body 111. The hub assembly 01 may include an installation state, and the installation state may include an interference fit between the rivet bolt 12 and the rivet hole 112. The base assembly 02 may include a machine table 21 and a positioning seat 22. The positioning seat 22 and the machine table 21 may be detachably connected. The pressing assembly 05 may include a first pressing head 53, a second pressing head 54, a driving rod 52, an elastic portion, and a fourth driving portion 51. The fourth driving portion 51 may be drivably connected to the driving rod 52, and is used to drive the driving rod 52 to move toward or away from the hub disk 11. The elastic portion may be detachably connected to the driving rod 52. One end of the first pressing head 53 may be detachably connected to one end of the elastic portion away from the driving rod 52, and the other end may extend in a direction away from the driving rod 52. One end of the second pressing head 54 can be detachably connected to the driving rod 52, and the other end can extend in a direction away from the driving rod 52. In order to solve the problem of deformation of the positioning seat 22 during the installation of the hub assembly 01, a method for installing the hub assembly 01 is proposed. Figure 1 As shown, the wheel hub assembly 01 installation method may include steps S10 to S30, and the steps will be described in detail below:

[0055] Step S10, when the hub assembly 01 is positioned on the positioning seat 22, that is, the hub assembly 01 reaches the accurate installation position, the installation can begin. At this time, the fourth driving part 51 can drive the first pressing head 53 and the second pressing head 54 to move toward the hub assembly 01 at a first speed through the driving rod 52, so that the first pressing head 53 can be abutted against the hub disk 11 of the hub assembly 01, thereby riveting the riveting bolt 12.

[0056] Step S20, when the first pressing head 53 is in contact with the hub disk 11 of the hub assembly 01, and the second pressing head 54 has not yet been in contact with the rivet bolt 12, the fourth driving part 51 can drive the second pressing head 54 to move toward the hub assembly 01 at a second speed. After the first pressing head 53 is in contact with the hub disk 11 of the hub assembly 01, the elastic part will be compressed during the continuous movement, so that the first pressing head 53 can continue to be in contact with the hub disk 11, so that the first pressing head 53 can fix the position of the hub disk 11 during the press-fitting process to ensure stability, and at the same time, the second pressing head 54 can press down the rivet bolt 12. Among them, the force of the first pressing head 53 pressing on the hub disk 11 can make the force between the side of the hub disk 11 away from the second pressing head 54 and the positioning seat 22 greater than the force between the side of the hub disk 11 close to the second pressing head 54 and the positioning seat 22. In this way, the pressure on the position of the second pressing head 54 corresponding to the positioning seat 22 can be balanced, the deformation of the positioning seat 22 can be slowed down, and the end face of the hub disc 11 can be prevented from tilting away from the second pressing head 54 during the riveting process. In this way, the rivet bolt 12 will not be deflected through correct riveting. When the positioning seat 22 is deformed and partially recessed away from the second pressing head 54, the hub disc 11 can be kept perpendicular to the second pressing head 54, so that the central axis of the rivet hole 112 is in line with the central axis of the second pressing head 54. Thus, the installation of the hub assembly 01 can be completed.

[0057] In step S30, when the second pressing head 54 moves to abut against the rivet bolt 12, the force exerted by the first pressing head 53 on the wheel hub disc 11 can balance the pressure exerted on the position of the second pressing head 54 corresponding to the positioning seat 22, thereby slowing down the deformation of the positioning seat 22 and preventing the end face of the wheel hub disc 11 close to the second pressing head 54 from tilting in the direction away from the second pressing head 54 during the riveting process. Therefore, the second pressing head 54 can press the rivet bolt 12 of the wheel hub assembly 01 to the set position of the rivet hole 112 of the wheel hub disc 11. When the positioning seat 22 is deformed and partially recessed in the direction away from the second pressing head 54, the force exerted by the first pressing head 53 on the wheel hub disc 11 can make the force between the side of the wheel hub disc 11 away from the second pressing head 54 and the positioning seat 22 greater than the force between the side of the wheel hub disc 11 close to the second pressing head 54 and the positioning seat 22. In this way, the wheel hub disc 11 can be kept perpendicular to the second pressing head 54, so that the central axis of the rivet hole 112 is collinear with the central axis of the second pressing head 54. During the riveting process, the rivet bolt 12 can be correctly riveted without being deflected, thereby completing the installation of the wheel hub assembly 01.

[0058] In some embodiments, in step S20, the first pressing head 53 can be abutted against a position where the central axis of the hub disk 11 can be offset by a first set distance (which can be 2% to 4.4% of the length of the radius of the hub disk 11) away from the second pressing head 54. At this time, the abutting position of the first pressing head 53 and the hub disk 11 and the central axis of the hub disk 11 are offset by a first set distance away from the second pressing head 54, so that the force between the side of the hub disk 11 away from the second pressing head 54 and the positioning seat 22 can be controlled to be greater than the force between the side of the hub disk 11 close to the second pressing head 54 and the positioning seat 22, so as to avoid the hub disk 11 close to the second pressing head 54 during the riveting process. The end face of the second pressing head 54 is inclined in a direction away from the second pressing head 54. When the positioning seat 22 is deformed, the part of the positioning seat 22 close to the second pressing head 54 is recessed in a direction away from the second pressing head 54 (i.e., recessed downward). Due to the force of the first pressing head 53 pressing on the wheel hub 11, the force between the wheel hub 11 away from the second pressing head 54 and the positioning seat 22 is greater than the force between the wheel hub 11 close to the second pressing head 54 and the positioning seat 22. In this way, the wheel hub 11 can be kept perpendicular to the second pressing head 54, and the central axis of the rivet bolt 12, the central axis of the rivet hole 112 and the central axis of the second pressing head 54 are in a colinear line. In this way, the rivet bolt 12 can be correctly riveted without deflection.

[0059] In other embodiments, Figure 2 As shown, the shortest distance between the top of the first ram 53 and the central axis of the second ram 54 can be smaller than the shortest distance between the bottom of the first ram 53 and the central axis of the second ram 54. After pressing down, the bottom of the first ram 53 can abut against the axial center of the hub assembly 01. This will generate a component force in the direction of downward and away from the second ram 54 on the hub disc 11. The force away from the second ram 54 will squeeze the hub disc 11, and the squeezing will increase the force between the part of the hub disc 11 away from the second ram 54 and the positioning seat 22. As a result, the force between the side of the hub disc 11 away from the second ram 54 and the positioning seat 22 is greater than the force between the side of the hub disc 11 close to the second ram 54 and the positioning seat 22. In this way, the hub disc 11 can be kept perpendicular to the second ram 54, so that the central axis of the rivet hole 112 is in line with the central axis of the second ram 54. In this way, the rivet bolt 12 can be riveted correctly without deflection.

[0060] In some embodiments, the wheel hub assembly 01 installation method may further include:

[0061] Step S21, when the second pressing head 54 moves toward the direction close to the hub assembly 01 at the second speed, the first pressure data, the second pressure data, and the third pressure data can be obtained. The first pressure data can include the force value between the side of the hub disc 11 away from the second pressing head 54 and the positioning seat 22, the second pressure data can include the force value between the first pressing head 53 and the hub disc 11, and the third pressure data can include the force value between the second pressing head 54 and the hub disc 11. It is convenient to judge how to drive the second pressing head 54 to continue the press-fitting work according to the size of the first pressure data, the second pressure data, and the third pressure data.

[0062] Step S22, when the central axis of the rivet bolt 12 and the central axis of the rivet hole 112 are at a certain angle, that is, the rivet bolt 12 is in a skewed state, when the second pressure head 54 presses down the skewed rivet bolt 12, a jamming phenomenon will occur between the rivet bolt 12 and the rivet hole 112. If the second pressure head 54 continues to press down the rivet bolt 12 at this time, it will cause the increase of the third pressure data. If the growth change rate of the detected third pressure data is greater than the growth change rate of the second pressure data by a first set value and the first pressure data is greater than the first set pressure, when the positioning seat 22 is not deformed, after the first pressure head 53 abuts against the wheel hub 11, the second pressure head 54 presses down the rivet bolt 12, and the wheel hub 11 and the positioning seat 22 remain in abutment, and the combined force of the first pressure head 53 and the second pressure head 54 can increase the first pressure data. At this time, the wheel hub 11 is not skewed, so the increase in the first pressure data can be judged as the positioning seat 22 is not deformed. It can be judged that the skew degree of the rivet bolt 12 affects the assembly at this time. The rivet bolt 12 is stuck in the rivet hole 112 and the second pressing head 54 cannot continue to press down. Therefore, the second pressing head 54 can be driven to move a second set distance away from the hub disk 11. The second pressing head 54 and the hub disk 11 are arranged at an interval so that the rivet bolt 12 can have enough space to utilize the elastic rebound of its own material to maintain the correct angle in the absence of the pressure of the second pressing head 54.

[0063] Step S23, after the second pressing head 54 moves away from the hub 11 by a second set distance, the second pressing head 54 may stop for a set time (the set time may be 1s to 2s). During this set time, there is enough time for the rivet bolt 12 to rebound by utilizing the elasticity of its own material and thus maintain the correct angle.

[0064] Step S24, when the second pressing head 54 stops for a set time, the skewness of the rivet bolt 12 does not affect the assembly, so the second pressing head 54 can be driven to move toward the direction close to the hub plate 11 to continue the press-fitting work.

[0065] In some embodiments, the wheel hub assembly 01 installation method may further include step S221, and step S221 may include:

[0066] Step S2212, when the central axis of the rivet bolt 12 coincides with the central axis of the rivet hole 112 and the second pressure head 54 is pressed down, the rivet bolt 12 can move, and the torque variation range of the fourth driving unit 51 driving the second pressure head 54 to move toward the direction close to the hub disk 11 is small. Therefore, if the difference between the detected growth change rate of the third pressure data and the growth change rate of the second pressure data is less than or equal to the second set value (can be equal to the first set value) and the first pressure data is less than or equal to the second set pressure (can be equal to the first set pressure), it can be determined that the rivet bolt 12 is not skewed, and when the part of the positioning seat 22 close to the second pressure head 54 is deformed, the second pressure head 54 presses down before the positioning seat 22 and the hub disk 11 are close. There will be a gap on one side of the second pressing head 54. After the first pressing head 53 abuts against the wheel hub 11, the second pressing head 54 presses down the rivet bolt 12 for a certain distance. The second pressing head 54 will make the side of the wheel hub 11 close to the second pressing head 54 approach the positioning seat 22, so that the side of the wheel hub 11 away from the second pressing head 54 has an upward trend, so the first pressure data will decrease. At this time, it can be judged that the positioning seat 22 is deformed and cannot be pressed normally. Therefore, the correction rod 42 can be driven to move toward the direction close to the wheel hub 11, so that the end face of the wheel hub 11 is perpendicular to the second pressing head 54, so that the central axis of the rivet hole 112 is colinear with the central axis of the second pressing head 54, so that the pressing work can continue. The correction rod 42 can be movably connected with the positioning seat 22, and the correction rod 42 can move along the thickness direction of the wheel hub 11. This facilitates the correction rod 42 to correct the hub 11 when it is tilted, so that the end surface of the hub 11 is perpendicular to the rivet bolt 12, and the central axis of the rivet hole 112 is colinear with the central axis of the rivet bolt 12. Thus, the press-fitting work can continue.

[0067] Step S2212, when the first pressure data is greater than the second set pressure, it means that the end face of the hub plate 11 is perpendicular to the rivet bolt 12, and the central axis of the rivet hole 112 is colinear with the central axis of the rivet bolt 12, and no correction is required, and the correction rod 42 can stop moving.

[0068] In some embodiments, the wheel hub assembly 01 installation method may further include step S222, and step S222 may include:

[0069] Step S2221, when the part of the positioning seat 22 near the second pressing head 54 is deformed, there will be a gap between the positioning seat 22 and the side of the hub disk 11 near the second pressing head 54 before the second pressing head 54 presses down. After the first pressing head 53 abuts against the hub disk 11, the second pressing head 54 presses down the riveting bolt 12 for a certain distance, and the second pressing head 54 will make the side of the hub disk 11 near the second pressing head 54 approach the positioning seat 22, so that the side of the hub disk 11 away from the second pressing head 54 has an upward trend, so the first pressure data will decrease. When the central axis of the rivet bolt 12 and the central axis of the rivet hole 112 have a certain angle, that is, the rivet bolt 12 is in a skewed state, when the second pressing head 54 presses down the skewed rivet bolt 12, a jamming phenomenon will occur between the rivet bolt 12 and the rivet hole 112. If the second pressing head 54 continues to press down the rivet bolt 12 at this time, it will cause the increase of the third pressure data. If the growth rate of the third pressure data is greater than the growth rate of the second pressure data by a third set value (which may be equal to the second set value) and the first pressure data is less than or equal to the third set pressure (which may be equal to the second set pressure), it can be determined that the positioning seat 22 is deformed and the degree of skewness of the rivet bolt 12 affects assembly. After the positioning seat 22 is deformed and the first pressure head 53 abuts against the wheel hub 11, the second pressure head 54 presses down the rivet bolt 12, and the second pressure head 54 makes the side of the wheel hub 11 close to the second pressure head 54 approach the positioning seat 22, so the shortest distance between the top of the rivet bolt 12 and the central axis of the first pressure head 53 is greater than the shortest distance between the bottom of the rivet bolt 12 and the central axis of the first pressure head 53. Then, the second pressure head 54 can be driven to move the third set distance away from the wheel hub 11, so that there is a space between the second pressure head 54 and the rivet bolt 12, which is convenient for providing space for the correction rod 42 to drive the wheel hub 11 to move.

[0070] In step S2222, the correction rod 42 can be movably connected with the positioning seat 22, and the correction rod 42 can move along the thickness direction of the hub disc 11. When the second pressing head 54 moves the third set distance in the direction away from the hub disc 11, the correction rod 42 can be driven to move the fourth set distance in the direction close to the second pressing head 54. In this way, the side of the hub disc 11 close to the second pressing head 54 can be higher than the side of the hub disc 11 away from the second pressing head 54. Since the rivet bolt 12 and the rivet hole 112 are stuck during the pressing process, the rivet bolt 12 is still in a tilted state even if the hub disc 11 is adjusted to a horizontal state, so it is necessary to move the correction rod 42 by the fourth set distance to facilitate the subsequent adjustment of the hub disc 11 and the rivet bolt 12.

[0071] Step S2223, when the correction rod 42 moves the fourth set distance toward the second pressing head 54, the shortest distance between the top of the rivet bolt 12 and the central axis of the first pressing head 53 can be smaller than the shortest distance between the bottom of the rivet bolt 12 and the central axis of the first pressing head 53, and then the second pressing head 54 can be driven to move toward the hub disk 11 at the third speed and the correction rod 42 stops moving the fourth set distance. It is convenient for the subsequent second pressing head 54 to abut against the rivet bolt 12 to generate pressure and adjust the angle of the rivet bolt 12.

[0072] Step S2224, when the second pressing head 54 moves toward the direction close to the hub disc 11 at the third speed until the second pressing head 54 presses the rivet bolt 12 to the first set angle (the first set angle can be the angle between the axis of the rivet bolt 12 and the axis of the rivet hole 112 within the set range, and the set range can be 0°~3°), the correction rod 42 can move toward the positioning seat 22 at the fourth speed. The horizontal plane of the hub disc 11 is parallel to the positioning seat 22 by moving the correction rod 42 toward the positioning seat 22. The third speed can be lower than the fourth speed, so that when the hub disc 11 is tilted, the angle of the rivet bolt 12 can be adjusted more conveniently by the second pressing head 54 to avoid the second pressing head 54 from abutting against the rivet bolt 12.

[0073] Step S2225, when the first pressure data is greater than the third set pressure, it means that the positioning seat 22 is not deformed. At this time, the end surface of the hub plate 11 is perpendicular to the second pressing head 54, so that the central axis of the riveting hole 112 is collinear with the central axis of the second pressing head 54. The correction rod 42 can stop moving.

[0074] In some embodiments, in step S2225, when the first pressure data is greater than the third set pressure, the correction rod 42 can stop moving and the second pressing head 54 moves toward the hub disk 11 at a fifth speed, and the fifth speed can be greater than the third speed. In this way, after the state of the hub disk 11 and the rivet bolt 12 is adjusted, the speed of the second pressing head 54 moving toward the hub disk 11 can be accelerated, thereby improving the pressing work efficiency.

[0075] In some embodiments, the wheel hub assembly 01 installation method may further include:

[0076] Step S31, when the second pressing head 54 presses the rivet bolt 12 to the set position of the rivet hole 112, the rivet bolt 12 has been accurately pressed, and the second pressing head 54 can move a fifth set distance away from the hub plate 11. This is to allow the hub plate 11 to have enough space to be lifted and subsequently rotated to continue to press-fit the next rivet bolt 12.

[0077] Step S32 , when the second pressing head 54 moves away from the hub plate 11 by the fifth set distance, there is sufficient space between the hub plate 11 and the second pressing head 54 , so the hub plate 11 can be driven to move toward the second pressing head 54 .

[0078] Step S33, when the wheel hub 11 moves toward the second pressing head 54 until the bottom end of the rivet bolt 12 is higher than the top end of the positioning seat 22, the wheel hub 11 can be driven to rotate in a set direction by a second set angle (which can be 360° / the number of rivet holes 112 evenly distributed on the wheel hub 11).

[0079] Step S34 , when the hub plate 11 rotates in the set direction by a second set angle, the hub plate 11 can be driven to move toward the positioning seat 22 , so as to facilitate the press-fitting of the next rivet bolt 12 .

[0080] In step S35 , when the hub plate 11 moves toward the positioning seat 22 until the hub plate 11 abuts against the positioning seat 22 , step S10 may be re-executed to install the next rivet bolt 12 .

[0081] In some embodiments, the first speed may be greater than the second speed, so as to improve the press-fitting efficiency and ensure that the second press head 54 can stably press-fit the rivet bolt 12 to avoid damage to the rivet bolt 12 .

[0082] The present embodiment discloses a wheel hub assembly 01 installation system, and the wheel hub assembly 01 installation system may include: a wheel hub assembly 01, a base assembly 02, and a press-fit assembly 05. The wheel hub assembly 01 may include a wheel hub disc 11 and a rivet bolt 12. The wheel hub disc 11 may include a disc body 111 and a rivet hole 112. The rivet hole 112 may penetrate from one side of the disc body 111 to the other side along the thickness direction of the disc body 111. The design of the rivet hole 112 allows the rivet bolt 12 to easily pass through and be fixed in the rivet hole 112. The wheel hub assembly 01 may include an installation state, and the installation state may include an interference fit between the rivet bolt 12 and the rivet hole 112. The interference fit may significantly improve the strength and stability of the connection, and may effectively prevent the rivet bolt 12 from loosening under vehicle vibration or impact load, thereby extending the overall service life of the wheel hub assembly 01.

[0083] The base assembly 02 may include a machine table 21 and a positioning seat 22. The positioning seat 22 may be detachably connected to the machine table 21, so that the positioning seat 22 can be repaired and replaced separately. The positioning seat 22 may support the hub disc 11. The positioning seat 22 may be provided with a positioning hole along the axial direction of the positioning seat 22, and the positioning hole may be arranged corresponding to the riveting hole 112. This allows the rivet bolt 12 to pass through the positioning hole during press-fitting, so that press-fitting is facilitated.

[0084] The pressing assembly 05 may include a fourth driving part 51, a driving rod 52, a first pressing head 53, an elastic part, and a second pressing head 54. The driving rod 52 may be slidably connected to the machine 21, so that the driving rod 52 can be freely extended and retracted. The fourth driving part 51 may be drivingly connected to the driving rod 52, so that the driving rod 52 can be driven to move toward or away from the hub disk 11. The elastic part may be detachably connected to the driving rod 52, so that the elastic part can be easily installed and disassembled and replaced. One end of the first pressing head 53 may be detachably connected to one end of the elastic part away from the driving rod 52, and the other end may extend in a direction away from the driving rod 52. One end of the second pressing head 54 may be detachably connected to the driving rod 52, and the other end may extend in a direction away from the driving rod 52. In this way, when the driving rod 52 moves toward the direction close to the hub disk 11, the first pressing head 53 is pressed down to abut against the hub disk 11. Since the elastic part can be freely extended and retracted, the second pressing head 54 can be moved to abut against the hub disk 11.

[0085] The installation system of the hub assembly 01 may include a first state, a second state, and a third state. The first state may include that the disk body 111 abuts against the positioning seat 22, and the rivet hole 112 may be sleeved on the outer peripheral side of the rivet bolt 12. The first press head 53 may abut against the disk body 111, and the second press head 54 may abut against the rivet bolt 12, so that the second press head 54 can press the rivet bolt 12. The second state may include that the disk body 111 abuts against the positioning seat 22, the rivet hole 112 may be sleeved on the outer peripheral side of the rivet bolt 12, the first press head 53 may be spaced apart from the disk body 111, and the second press head 54 may be spaced apart from the rivet bolt 12. The third state may include that the first state includes that the disk body 111 abuts against the positioning seat 22, the rivet hole 112 may be sleeved on the outer peripheral side of the rivet bolt 12, the first press head 53 may abut against the disk body 111, and the second press head 54 may be spaced apart from the rivet bolt 12.

[0086] In some embodiments, the wheel hub assembly 01 installation system may further include a rotation assembly 03 and a correction assembly 04 .

[0087] like Figure 4 As shown, the rotating assembly 03 may include a rotating platform 31, a first driving unit 32, and a second driving unit 33. The first driving unit 32 may be detachably connected to the machine platform 21, which is convenient for installation and separate maintenance of the first driving unit 32. The rotating platform 31 may be drivably connected to the first driving unit 32, and the rotating platform 31 may be driven to move along the thickness direction of the hub disk 11, so that the rotating platform 31 may be adaptively raised and lowered according to the distance between the hub disk 11 and the first pressure head 53 and the second pressure head 54. Figure 5 As shown, the rotating table 31 can be connected to the second driving part 33 to drive the rotating table 31 to rotate along the circumferential direction of the hub disk 11, so as to facilitate the rotation of the hub disk 11 for press-fitting when the next rivet bolt 12 is press-fitted.

[0088] The wheel hub assembly 01 installation system may further include a fourth state, which may include the rotating platform 31 driving the wheel hub disc 11 to move toward the second pressing head 54 until the bottom end of the rivet bolt 12 is higher than the top end of the positioning seat 22 .

[0089] like Figure 6 As shown, the correction component 04 may include a first sensor 41, a second sensor, a third sensor, a correction rod 42, and a third driving unit. The correction rod 42 may be movably connected to the positioning seat 22. The third driving unit may be drivably connected to the correction rod 42, driving the correction rod 42 to move along the thickness direction of the hub disk 11, so that when the positioning seat 22 is deformed during the press-fitting work, the hub disk 11 may be adjusted by the correction rod 42. The first sensor 41 may be detachably connected to the machine 21, which is convenient for the installation and maintenance of the first sensor 41. The first sensor 41 may be used to detect the first pressure data, and the first pressure data may include the force value between the side of the hub disk 11 away from the second pressure head 54 and the positioning seat 22. The second sensor may be detachably connected to the machine 21, which is convenient for the installation and maintenance of the second sensor. The second sensor may be used to detect the second pressure data, and the second pressure data may include the force value between the first pressure head 53 and the hub disk 11. The third sensor may be detachably connected to the machine 21, which is convenient for the installation and maintenance of the third sensor. The third sensor may be used to detect third pressure data, and the third pressure data may include a force value between the second pressure head 54 and the wheel hub 11 .

[0090] Those skilled in the art will appreciate that the above-mentioned embodiments are specific examples for implementing the present disclosure, and in actual applications, various changes may be made thereto in form and detail without departing from the scope of the present disclosure.

Claims

1. A method for installing a wheel hub assembly, characterized in that: The wheel hub assembly installation method comprises: Step S10, based on the completion of positioning of the wheel hub assembly on the positioning seat, drive the first pressing head and the second pressing head to move at a first speed toward the direction approaching the wheel hub assembly; wherein the wheel hub assembly installation system includes a wheel hub assembly, a machine base assembly, and a pressing assembly; the wheel hub assembly includes a wheel hub disk and a rivet bolt; the machine base assembly includes a machine platform and a positioning seat; the positioning seat is detachably connected to the machine platform; the pressing assembly includes a fourth driving part, a driving rod, a first pressing head, an elastic part, and a second pressing head; the driving rod is slidably connected to the machine platform; the fourth driving part is drivingly connected to the driving rod to drive the driving rod to move toward or away from the wheel hub disk; the elastic part is detachably connected to the driving rod; one end of the first pressing head is detachably connected to one end of the elastic part away from the driving rod, and the other end extends in a direction away from the driving rod; one end of the second pressing head is detachably connected to the driving rod, and the other end extends in a direction away from the driving rod; Step S20, based on the abutment between the first pressing head and the hub disk of the wheel hub assembly, driving the second pressing head to move toward the wheel hub assembly at a second speed; wherein the force of the first pressing head pressing on the hub disk makes the acting force between the side of the hub disk away from the second pressing head and the positioning seat greater than the acting force between the side of the hub disk close to the second pressing head and the positioning seat; In the step S20, the first pressing head abuts against a position of the central axis of the hub disc that is offset by a first set distance away from the second pressing head; The wheel hub assembly installation method further comprises: Step S21, based on the second pressure head moving toward the wheel hub assembly at the second speed, obtaining first pressure data, second pressure data, and third pressure data; wherein the first pressure data includes the force value between the wheel hub disc away from the second pressure head and the positioning seat, the second pressure data includes the force value between the first pressure head and the wheel hub disc, and the third pressure data includes the force value between the second pressure head and the wheel hub disc; Step S22, based on the fact that the growth change rate of the third pressure data is greater than the growth change rate of the second pressure data by a first set value and the first pressure data is greater than a first set pressure, driving the second pressure head to move away from the hub disk by a second set distance; Step S23, based on the second pressing head moving the second set distance in a direction away from the hub disk, the second pressing head stops for a set time; Step S24, based on the second pressing head stopping the set time, driving the second pressing head to move toward the hub disk; Step S30: Based on the second pressing head, the rivet bolt of the wheel hub assembly is pressed to the set position of the rivet hole of the wheel hub disc to complete the installation of the wheel hub assembly.

2. A wheel hub assembly installation method according to claim 1, characterized in that: The wheel hub assembly installation method further includes step S221, wherein step S221 includes: Step S2212, based on the difference between the growth change rate of the third pressure data and the growth change rate of the second pressure data being less than or equal to a second set value and the first pressure data being less than or equal to a second set pressure, driving the correction rod to move toward the hub disk; wherein the correction rod is movably connected to the positioning seat; and the correction rod moves along the thickness direction of the hub disk; Step S2212: based on the first pressure data being greater than the second set pressure, the correction rod stops moving.

3. A wheel hub assembly installation method according to claim 1, characterized in that: The wheel hub assembly installation method further includes step S222, wherein step S222 includes: Step S2221, based on the fact that the growth change rate of the third pressure data is greater than the growth change rate of the second pressure data by a third set value and the first pressure data is less than or equal to the third set pressure, driving the second pressure head to move away from the hub disk by a third set distance; Step S2222, based on the second pressure head moving the third set distance in the direction away from the wheel hub, driving the correction rod to move the fourth set distance in the direction close to the second pressure head; wherein the correction rod is movably connected to the positioning seat; and the correction rod moves along the thickness direction of the wheel hub; Step S2223, based on the correction rod moving the fourth set distance toward the second pressure head, driving the second pressure head to move toward the hub disk at a third speed and stopping the correction rod from moving; Step S2224, based on the second pressing head pressing the riveting bolt to a first set angle, the correction rod moves toward the positioning seat at a fourth speed; wherein the third speed is less than the fourth speed; Step S2225: based on the first pressure data being greater than the third set pressure, the correction rod stops moving.

4. A wheel hub assembly installation method according to claim 3, characterized in that: In the step S2225, based on the fact that the first pressure data is greater than the third set pressure, the correction rod stops moving and the second pressure head moves toward the hub disk at a fifth speed; wherein the fifth speed is greater than the third speed.

5. A wheel hub assembly installation method according to claim 1, characterized in that: The wheel hub assembly installation method further comprises: Step S31, based on the second pressing head pressing the rivet bolt to the set position of the rivet hole, the second pressing head moves a fifth set distance away from the wheel hub; Step S32, based on the second pressure head moving away from the hub disk by the fifth set distance, driving the hub disk to move toward the second pressure head; Step S33, based on the hub plate moving toward the second pressing head until the bottom end of the rivet bolt is higher than the top end of the positioning seat, driving the hub plate to rotate in a set direction by a second set angle; Step S34, based on the hub disc rotating in the set direction by the second set angle, driving the hub disc to move toward the positioning seat; Step S35 , based on the hub disc moving toward the positioning seat until the hub disc abuts against the positioning seat, re-execute step S10 .

6. A wheel hub assembly installation method according to claim 1, characterized in that: The first speed is greater than the second speed.

7. A wheel hub assembly mounting system, characterized in that: The wheel hub assembly installation system is applied to a wheel hub assembly installation method according to any one of claims 1 to 6, and the wheel hub assembly installation system comprises: A wheel hub assembly, the wheel hub assembly comprising a wheel hub disc and a rivet bolt; the wheel hub disc comprising a disc body and a rivet hole; the rivet hole penetrates from one side of the disc body to the other side along the thickness direction of the disc body; the wheel hub assembly comprises an installation state; the installation state comprises an interference fit between the rivet bolt and the rivet hole; A machine base assembly, the machine base assembly comprising a machine platform and a positioning seat; the positioning seat is detachably connected to the machine platform; the positioning seat is penetrated by a positioning hole along the axial direction of the positioning seat; the positioning hole is arranged corresponding to the riveting hole; A pressing assembly, the pressing assembly comprising a fourth driving part, a driving rod, a first pressing head, an elastic part, and a second pressing head; the driving rod is slidably connected to the machine platform; the fourth driving part is drivingly connected to the driving rod, driving the driving rod to move toward or away from the hub disk; the elastic part is detachably connected to the driving rod; one end of the first pressing head is detachably connected to one end of the elastic part away from the driving rod, and the other end extends in a direction away from the driving rod; one end of the second pressing head is detachably connected to the driving rod, and the other end extends in a direction away from the driving rod; The wheel hub assembly mounting system includes a first state, a second state, and a third state; the first state includes the disk body abutting against the positioning seat, the rivet hole is sleeved on the outer peripheral side of the rivet bolt, the first pressure head abuts against the disk body, and the second pressure head abuts against the rivet bolt; the second state includes the disk body abutting against the positioning seat, the rivet hole is sleeved on the outer peripheral side of the rivet bolt, the first pressure head is spaced apart from the disk body, and the second pressure head is spaced apart from the rivet bolt; the third state includes the first state including the disk body abutting against the positioning seat, the rivet hole is sleeved on the outer peripheral side of the rivet bolt, the first pressure head abuts against the disk body, and the second pressure head is spaced apart from the rivet bolt.

8. A wheel hub assembly mounting system according to claim 7, characterized in that: The hub assembly installation system also includes a rotation assembly and a correction assembly; The rotating assembly includes a rotating table, a first driving part, and a second driving part; the first driving part is detachably connected to the machine table; the rotating table is drivingly connected to the first driving part, driving the rotating table to move along the thickness direction of the hub disk; the rotating table is drivingly connected to the second driving part, driving the rotating table to rotate along the circumferential direction of the hub disk; The wheel hub assembly installation system further includes a fourth state; the fourth state includes the rotating platform driving the wheel hub plate to move toward the second pressing head until the bottom end of the riveting bolt is higher than the top end of the positioning seat; The correction assembly includes a first sensor, a second sensor, a third sensor, a correction rod, and a third driving unit; the correction rod is movably connected to the positioning seat; the third driving unit is drivingly connected to the correction rod, driving the correction rod to move along the thickness direction of the hub disk; the first sensor is detachably connected to the machine; the first sensor is used to detect first pressure data; the second sensor is detachably connected to the machine; the second sensor is used to detect second pressure data; the third sensor is detachably connected to the machine; the third sensor is used to detect third pressure data; the first pressure data includes the force value between the side of the hub disk away from the second pressure head and the positioning seat, the second pressure data includes the force value between the first pressure head and the hub disk, and the third pressure data includes the force value between the second pressure head and the hub disk.

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