A dust cover press-fit system and method

Abstract

The present application relates to dust cover press mounting technical field, specifically, a kind of dust cover press mounting system and method.The dust cover press mounting system includes pressing assembly, guide assembly and dust cover.The guide assembly includes expansion pipe, first guide pipe;Expansion pipe, first guide pipe are sequentially connected along the axial direction of first guide pipe;Swing arm assembly includes arm seat unit;Arm seat unit includes arm seat body, clamping ring, swing rod module;Clamping ring is connected with arm seat body;Dust cover includes first clamping unit, bellows, second clamping unit;First clamping unit, bellows, second clamping unit are sequentially connected along the axial direction of bellows;R3>R1>R2;Wherein, R1 is the maximum outer diameter of expansion pipe, R2 is the minimum inner diameter when first clamping unit free state, R3 is the maximum inner diameter after first clamping unit inner diameter expands under external force;First length is less than second length;Thus it has solved the problem that guide assembly is easy to skew in dust cover installation process.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of dust cover press-fitting, in particular to a dust cover press-fitting system and method. BACKGROUND

[0002] In the installation process of the dust cover, in order to solve the problem that the dust cover is easy to be skewed when being installed to the swing arm, the prior art usually adopts a guide assembly to assist positioning. Its working mode is to be sleeved on the outside of the extension rod, and a cooperation is formed between the inner wall of the guide assembly and the outer wall of the extension rod to provide a guide path for the installation of the dust cover. When the dust cover is installed, the guide action of the guide assembly can reduce the direct interference between the dust cover and the swing arm, so that the dust cover can be more smoothly sleeved to the specified position of the swing arm, thereby reducing the risk of skewing of the dust cover caused by installation resistance. However, in actual application, the positioning sleeve may be skewed in the process of being sleeved on the outside of the extension rod due to factors such as cooperation deviation with the extension rod, external force influence during installation operation, etc., thereby causing the guide action of the positioning sleeve to the dust cover to fail, and the installation of the dust cover may still be skewed.

[0003] In the prior art, the relative position accuracy of the guide assembly and the extension rod directly determines the installation accuracy of the dust cover. When the guide assembly is sleeved on the outside of the extension rod, if there is a radial gap between the two or they are not strictly coaxially positioned during installation, the guide assembly is easy to be radially deviated or skewed; this skewed state will be directly transmitted to the guided dust cover, causing the dust cover to deviate from the preset installation track during movement along the inner wall of the positioning sleeve, and finally causing the assembly position of the dust cover and the swing arm to be deviated. SUMMARY

[0004] In order to solve the problem that the guide assembly is easy to be skewed in the installation process of the dust cover, the present application provides a dust cover press-fitting system and method.

[0005] In the first aspect, the present application provides a dust cover press-fitting system, which comprises:

[0006] a press-fitting assembly;

[0007] a guide assembly comprising an expansion tube and a first guide tube; the expansion tube and the first guide tube are connected in sequence along the axial direction of the first guide tube;

[0008] a swing arm assembly comprising an arm seat unit; the arm seat unit comprises an arm seat body, a clamping ring and a swing rod module; the clamping ring is connected with the arm seat body; the swing rod module comprises a ball head, a clamping column and an extension column; the ball head, the clamping column and the extension column are connected in sequence along the axial direction of the clamping column; the ball head is slidingly connected with the arm seat body; the clamping column passes through the clamping ring;

[0009] The dust cover comprises a first clamping unit, a bellows, and a second clamping unit; the first clamping unit, the bellows, and the second clamping unit are sequentially connected along the axial direction of the bellows.

[0010] R3>R1>R2; wherein R1 is the maximum outer diameter of the expansion tube, R2 is the minimum inner diameter of the first clamping unit in a free state, and R3 is the maximum inner diameter of the first clamping unit after the inner diameter is expanded under the action of an external force.

[0011] The first length is smaller than the second length; the length of the bellows in the free state of the first clamping unit is the first length; in the first working state, the pressing assembly exerts pressure on the second clamping unit, and the length of the bellows is the second length; the first working state includes that the inner circumferential wall of the first guide tube abuts against the outer circumferential wall of the extension column, and the inner circumferential wall of the first clamping unit abuts against the outer circumferential wall of the expansion tube.

[0012] In some embodiments, the outer diameter of the expansion tube gradually increases in the direction from the expansion tube to the first guide tube.

[0013] In some embodiments, the inner circumferential wall of the first clamping unit abuts against the outer circumferential wall of the expansion tube, and the distance from the first clamping unit to the clamping ring is greater than or equal to the maximum length of the bellows when the bellows is stretched, without the pressing assembly exerting pressure on the second clamping unit.

[0014] In some embodiments, the outer diameter of the first guide tube gradually increases in the direction from the expansion tube to the first guide tube.

[0015] R4

[0016] In some embodiments, the guide assembly further comprises a groove; the groove is recessed from the outer circumferential wall of the first guide tube towards the inner circumferential wall of the first guide tube.

[0017] In some embodiments, the guide assembly further comprises a second guide tube; the first guide tube, the expansion tube, and the second guide tube are sequentially connected along the axial direction of the first guide tube; the radial direction of the second guide tube gradually increases in the direction from the expansion tube to the first guide tube.

[0018] R5

[0019] In some embodiments, the pressing assembly includes a substrate and a pressing unit; the pressing unit includes a first pressing sleeve and a second pressing sleeve; the first pressing sleeve is connected to the substrate; the second pressing sleeve is slidably connected to the first pressing sleeve; the second pressing sleeve is disposed within the space surrounded by the first pressing sleeve; the second pressing sleeve moves along the central axis of the second pressing sleeve; the first pressing sleeve is used to drive the second locking unit; the second pressing sleeve is used to drive the first locking unit.

[0020] In some embodiments, the pressing assembly further includes a clamping unit; the clamping unit is connected to the substrate; the clamping unit applies a force to the second locking unit, causing the second locking unit to fit against the first pressing sleeve.

[0021] In a second aspect, the present invention provides a method for pressing a dust cover, which is applied to any of the dust cover pressing systems described in the first aspect. The method includes:

[0022] Triggered by a pressing command, the pressing assembly drives the dust cover to move to a first state; wherein, the first state includes the first engaging unit abutting against the expansion tube, and the corrugated tube and the second engaging unit respectively being sleeved on the outer periphery of the first guide tube;

[0023] The pressing assembly drives the second locking unit to move along the direction from the expansion tube to the first guide tube until the second locking unit connects with the outer periphery of the locking ring; wherein, during the movement of the second locking unit, the first locking unit drives the expansion tube to move radially along the expansion tube;

[0024] Based on the connection between the second engaging unit and the outer peripheral side of the engaging ring, the pressing assembly drives the first engaging unit to move along the direction from the expansion tube to the first guide tube;

[0025] The pressing is completed based on the connection between the first engaging unit and the outer periphery of the extension post.

[0026] In some embodiments, the pressing assembly drives the second engaging unit to move along the direction from the expansion tube to the first guide tube until the second engaging unit connects with the outer periphery of the engaging ring, including:

[0027] The pressing assembly drives the second engaging unit to move along the direction from the expansion tube to the first guide tube until the second engaging unit is in a second state; wherein, the second state includes the second engaging unit abutting against the outer peripheral surface of the engaging ring on the side away from the arm seat body;

[0028] The pressing assembly drives the second engaging unit to move from the second state along the direction from the expansion tube to the first guide tube until the second engaging unit connects with the outer peripheral surface of the engaging ring; wherein, during the process of the second engaging unit moving from the second state to the process of the second engaging unit connecting with the outer peripheral surface of the engaging ring, the first engaging unit is in a free state.

[0029] To address the problem of guide components easily becoming misaligned during dust cover installation, this invention offers the following advantages:

[0030] Pressure is applied to the second locking unit of the dust cover by the pressing assembly, so that the length of the bellows changes from the first length to the second length (in the first working state). At this time, the inner peripheral wall of the first locking unit abuts against the outer peripheral wall of the expansion tube in the guide assembly. Since R3>R1>R2, the first locking unit can apply pressure to the expansion tube. At the same time, the inner peripheral wall of the first guide tube abuts against the outer peripheral wall of the extension column of the swing arm assembly. This can realize the position correction of the guide assembly (expansion tube, first guide tube) and avoid its skewness, thereby ensuring the accurate guidance of the guide assembly to the dust cover. Finally, it solves the problem of the dust cover being installed crookedly due to the skewness of the guide assembly when it is sleeved outside the extension column. Attached Figure Description

[0031] Figure 1 A first-view schematic diagram of a dust cover press-fitting system according to one embodiment is shown;

[0032] Figure 2 A second-view schematic diagram of a dust cover press-fitting system according to one embodiment is shown;

[0033] Figure 3 A cross-sectional schematic diagram of a dust cover press-fitting system according to one embodiment is shown;

[0034] Figure 4 It shows Figure 3 A partial enlarged view of the dust cover press-fitting system in the image;

[0035] Figure 5 A partial schematic diagram of the dust cover press-fitting system of the first embodiment is shown;

[0036] Figure 6 A partial schematic diagram of the dust cover press-fitting system according to the second embodiment is shown;

[0037] Figure 7 A partial schematic diagram of the dust cover press-fitting system according to the third embodiment is shown;

[0038] Figure 8 A schematic diagram of a dust cover press-fitting system guide assembly is shown in one embodiment.

[0039] Reference numerals: 10 Support assembly; 11 Support base; 12 Positioning base; 20 Pressing assembly; 21 Substrate; 22 Pressing unit; 221 First pressing sleeve; 222 Second pressing sleeve; 223 Second driving part; 23 First driving part; 24 Clamping unit; 241 Clamping head; 242 Third driving part; 30 Guide assembly; 31 First guide tube; 32 Expansion tube; 33 Second guide tube; 34 Groove; 40 Swing arm assembly; 41 Arm seat unit; 411 Arm seat body; 412 Engaging ring; 413 Swing rod module; 4131 Ball head; 4132 Engaging post; 4133 Extension post; 42 First arm unit; 43 Second arm unit; 50 Dust cover; 51 First engaging unit; 52 Corrugated tube; 53 Second engaging unit. Detailed Implementation

[0040] 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.

[0041] 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.

[0042] During the installation of the dust cover 50 onto the swing arm assembly 40, a guide assembly 30 is required to ensure smooth assembly of the dust cover 50. The guide assembly 30 includes an expansion tube 32 and a first guide tube 31, which are connected sequentially along the axial direction of the first guide tube 31. The guide assembly 30 must be fitted onto the outside of the extension post 4133 of the swing arm module 413 in the swing arm assembly 40. The dust cover 50 includes a first engaging unit 51, a bellows 52, and a second engaging unit 53, which are connected sequentially along the axial direction of the bellows 52. Their installation requires coordination with the guide assembly 30 to ensure accurate positioning. However, in actual operation, when the guide assembly 30 is fitted onto the outside of the extension post 4133, insufficient precision in the fit between the expansion tube 32, the first guide tube 31, and the extension post 4133, or positioning deviations during installation, may cause the guide assembly 30 to become misaligned. This skewed state will directly affect the engagement position between the first engaging unit 51 of the dust cover 50 and the guide component 30, making it impossible for the dust cover 50 to be assembled along the preset trajectory during installation, thus causing the dust cover 50 to be installed skewed as a whole.

[0043] Example 1: This example discloses a dust cover 50 press-fitting system, such as... Figure 3 As shown, the dust cover 50 press-fit system includes a press-fit assembly 20, a guide assembly 30, a swing arm assembly 40, and a dust cover 50. The press-fit assembly 20 applies pressure to the second engagement unit 53 of the dust cover 50, providing driving force for the installation of the dust cover 50. Figure 7 As shown, the guide assembly 30 includes an expansion tube 32 and a first guide tube 31. The expansion tube 32 and the first guide tube 31 are connected sequentially along the axial direction of the first guide tube 31.

[0044] The swing arm assembly 40 includes an arm base unit 41. The arm base unit 41 includes an arm base body 411, a locking ring 412, and a swing arm module 413. The locking ring 412 is connected to the arm base body 411. Figure 4 As shown, the rocker arm module 413 includes a ball head 4131, a locking post 4132, and an extension post 4133. The ball head 4131, locking post 4132, and extension post 4133 are connected sequentially along the axial direction of the locking post 4132. The ball head 4131 is slidably connected to the arm base body 411. Figure 6 As shown, the engagement post 4132 passes through the engagement ring 412. The arm seat 411 provides sliding support for the ball joint 4131. The engagement ring 412, in conjunction with the engagement post 4132, restricts the range of motion of the swing arm module 413. The extension post 4133 can be connected to other components of the vehicle during the use of the swing arm assembly 40.

[0045] The dust cover 50 includes a first engaging unit 51, a bellows 52, and a second engaging unit 53. The first engaging unit 51, the bellows 52, and the second engaging unit 53 are connected sequentially along the axial direction of the bellows 52.

[0046] R3 > R1 > R2. Where R1 is the maximum outer diameter of the expansion tube 32, R2 is the minimum inner diameter of the first engaging unit 51 in its free state, and R3 is the maximum inner diameter of the first engaging unit 51 after its inner diameter expands under external force. This allows the first engaging unit 51 to abut against the expansion tube 32 in its free state, and then expand its inner diameter under external force to tightly abut against the outer peripheral wall of the expansion tube 32, thereby applying a radial force to the expansion tube 32, achieving position correction of the guide assembly 30, and preventing the guide assembly 30 from tilting.

[0047] The first length is less than the second length. When the first engaging unit 51 is in its free state, the length of the bellows 52 is the first length. In the first working state, the pressing assembly 20 applies pressure to the second engaging unit 53, and the length of the bellows 52 becomes the second length. The dust cover 50 pressing system includes a first working state, in which the inner peripheral wall of the first guide tube 31 abuts against the outer peripheral wall of the extension post 4133, and the inner peripheral wall of the first engaging unit 51 abuts against the outer peripheral wall of the expansion tube 32. By applying pressure through the pressing assembly 20, the length of the bellows 52 changes from the first length to the second length. The deformation of the bellows 52 can provide the first engaging unit 51 with... Figure 3 The downward force shown allows the first engaging unit 51 to move downwards. During the downward movement of the first engaging unit 51, when the angle between the central axis of the first guide tube 31 and the central axis of the extension column 4133 is greater than a set angle (the set angle can be 0°~3°), the first engaging unit 51 can simultaneously apply a downward and radial force to the expansion tube 32. The radial force of the expansion tube 32 can make the angle between the central axis of the first guide tube 31 and the central axis of the extension column 4133 less than or equal to the set angle (i.e., complete the correction of the guide assembly 30), so that the dust cover 50 can be smoothly installed with the swing arm assembly 40.

[0048] Furthermore, such as Figure 2 As shown, the dust cover 50 press-fitting system also includes a support assembly 10, which includes a support base 11 and a positioning base 12. The press-fitting assembly 20 is connected to the support base 11, and the positioning base 12 is connected to the swing arm assembly 40 to fix the position of the swing arm assembly 40, facilitating subsequent press-fitting of the dust cover 50. Figure 5As shown, the swing arm assembly 40 includes a first arm unit 42 and a second arm unit 43. One end of the arm base 411 is fixedly connected to the first arm unit 42, and the other end is fixedly connected to the second arm unit 43, for connecting the swing arm assembly 40 with other components during operation. The first engaging unit 51 includes a first skeleton ring and a first rubber ring, with the first skeleton ring connected to the first rubber ring. The first rubber ring wraps around the outer periphery of the first skeleton ring. The hardness of the first skeleton ring is greater than the hardness of the first rubber ring. The second engaging unit 53 includes a second skeleton ring and a second rubber ring, with the second skeleton ring connected to the second rubber ring. The second rubber ring wraps around the outer periphery of the second skeleton ring. The hardness of the second skeleton ring is greater than the hardness of the second rubber ring.

[0049] Furthermore, the dust cover 50 press-fit system also includes a second working state and an installation completed state. The second working state includes the first engaging unit 51 being fitted onto the outer periphery of the first guide tube 31, and the inner periphery of the second engaging unit 53 being connected to the outer periphery of the engaging ring 412. This connection can be an interference fit. In this state, the resistance between the first engaging unit 51 and the first guide tube 31 is small, reducing the interference of this resistance on the movement of the inner periphery of the second engaging unit 53 to abut against the outer periphery of the engaging ring 412. The installation completed state includes the inner periphery of the first engaging unit 51 being connected to the outer periphery of the guide post near the ball head 4131. This connection can also be an interference fit. The inner periphery of the second engaging unit 53 is also connected to the outer periphery of the engaging ring 412. This connection can also be an interference fit. In this state, only the inner periphery of the first engaging unit 51 needs to be connected to the outer periphery of the guide post, resulting in less interference.

[0050] Furthermore, the outer diameter of the expansion tube 32 gradually increases along the direction from the expansion tube 32 to the first guide tube 31, so that the expansion tube 32 forms a gradual outer peripheral contour. When the first engaging unit 51 abuts against the expansion tube 32 and moves relative to it, the gradual change of the outer peripheral wall can guide the first engaging unit 51 to move smoothly downward. At the same time, the radial force exerted by the first engaging unit 51 on the guide component 30 further enhances the correction effect on the guide component 30. Under the premise of correcting the guide component 30, the dust cover 50 can be installed smoothly.

[0051] Furthermore, the inner peripheral wall of the first engaging unit 51 abuts against the outer peripheral wall of the expansion tube 32. When the pressing assembly 20 does not apply pressure to the second engaging unit 53, the distance from the first engaging unit 51 to the engaging ring 412 is greater than or equal to the maximum length of the bellows 52 when stretched, providing sufficient stretching space for the bellows 52. When the pressing assembly 20 applies pressure to the second engaging unit 53, the bellows 52 can be fully stretched. After the bellows 52 is fully stretched, the second engaging unit 53 can more effectively drive the first engaging unit 51 through the bellows 52. At the same time, the rebound force of the bellows 52 after being fully stretched can make the first engaging unit 51 move downward and apply force to the expansion tube 32, thereby better correcting the guide assembly 30 and avoiding skewing.

[0052] Furthermore, the outer diameter of the first guide tube 31 gradually increases along the direction from the expansion tube 32 to the first guide tube 31, so that the first guide tube 31 forms a gradually changing outer peripheral contour, which facilitates the smooth movement of the first engaging unit 51 of the dust cover 50 along its outer peripheral wall and reduces movement resistance.

[0053] R4 < R2 < R5 < R3. Where R4 is the minimum outer diameter of the first guide tube 31, and R5 is the maximum outer diameter of the first guide tube 31. The dimensional relationship R4 < R2 ensures that the minimum outer diameter of the first guide tube 31 is smaller than the minimum inner diameter of the first engaging unit 51 in its free state, facilitating initial engagement and reducing contact resistance. The dimensional relationship R2 < R5 < R3 ensures that the first engaging unit 51 can gradually conform to the outer wall of the first guide tube 31 during movement. Furthermore, because R5 < R3, the first engaging unit 51 has sufficient space to adapt to changes in its outer diameter under external force, further ensuring the accuracy of the installation position of the first guide tube 31.

[0054] Furthermore, such as Figure 8 As shown, the guide assembly 30 also includes a groove 34. The groove 34 is recessed from the outer peripheral wall of the first guide tube 31 toward the inner peripheral wall of the first guide tube 31. The groove 34 can store lubricating oil, reducing the friction between the first engaging unit 51 and the outer peripheral wall of the first guide tube 31, while also venting air between the dust cover 50 and the first guide tube 31, thus reducing the resistance to movement of the first engaging unit 51 on the outer peripheral side of the first guide tube 31.

[0055] Furthermore, the ratio of the length of the groove 34 projected radially along the first guide tube 31 to the length of the first guide tube 31 projected radially along the first guide tube 31 is greater than 0.8. The ratio of the length of the groove 34 projected axially along the first guide tube 31 to the length of the first guide tube 31 projected axially along the first guide tube 31 is also greater than 0.8. This ensures that the first engaging unit 51 can be lubricated and vented throughout the entire circumferential direction.

[0056] Furthermore, the guide assembly 30 also includes a second guide tube 33. The first guide tube 31, the expansion tube 32, and the second guide tube 33 are connected sequentially along the axial direction of the first guide tube 31. The radial direction of the second guide tube 33 gradually increases along the direction from the expansion tube 32 to the first guide tube 31, so that the second guide tube 33 forms a gradually changing guide surface, providing initial guidance for the installation of the dust cover 50.

[0057] R5 < R2. Wherein, R5 is the maximum diameter of the second guide tube 33, ensuring that the first engaging unit 51 can be smoothly fitted onto the second guide tube 33 in a free state, and facilitating the dust cover 50 to play a guiding role when fitted onto the outer periphery of the second guide tube 33.

[0058] Further, the pressing assembly 20 includes a substrate 21 and a pressing unit 22. The pressing unit 22 includes a first pressing sleeve 221 and a second pressing sleeve 222. The first pressing sleeve 221 is connected to the substrate 21. The second pressing sleeve 222 is slidably connected to the first pressing sleeve 221. The second pressing sleeve 222 is disposed within the space enclosed by the first pressing sleeve 221. The second pressing sleeve 222 moves along the central axis of the second pressing sleeve 222. The first pressing sleeve 221 is used to drive the second engaging unit 53. The second pressing sleeve 222 is used to drive the first engaging unit 51. During the installation of the dust cover 50, the first pressing sleeve 221 is used to drive the second engaging unit 53. The second pressing sleeve 222 drives the first engaging unit 51. The first pressing sleeve 221 drives the second engaging unit 53 to move downward, causing the bellows 52 to lengthen. This allows the bellows 52 to apply force to the first engaging unit 51, causing the guide component 30 to be aligned. After alignment, the first and second pressing sleeves simultaneously apply force to the dust cover 50, allowing the dust cover 50 to move closer to the engaging ring 412 until it reaches the second engaging unit 53 for installation. After the second engaging unit 53 is installed, the second pressing sleeve 222 can independently drive the first engaging unit 51 to move closer to the second engaging unit 53 until the first engaging unit 51 is installed, and the dust cover 50 is installed. The substrate 21 provides a mounting base for the pressing unit 22. The sliding connection structure between the first pressing sleeve 221 and the second pressing sleeve 222 enables the two to operate independently. The first pressing sleeve 221 drives the second locking unit 53, and the second pressing sleeve 222 drives the first locking unit 51, thereby applying force to different parts of the dust cover 50 to meet the different driving requirements during the installation of the dust cover 50.

[0059] Furthermore, such as Figure 3 As shown, the pressing assembly 20 also includes a first driving part 23, which is drivenly connected to the pressing unit 22. The pressing unit 22 includes a second driving part 223, which is drivenly connected to the second pressing sleeve 222.

[0060] Furthermore, such as Figure 1 As shown, the pressing assembly 20 also includes a clamping unit 24. The clamping unit 24 is connected to the substrate 21. The clamping unit 24 applies a force to the second engaging unit 53, causing the second engaging unit 53 to fit against the first pressing sleeve 221. The connection between the clamping unit 24 and the substrate 21 ensures its stable position. By applying a force to the second engaging unit 53 to fit against the first pressing sleeve 221, the first engaging unit 51 and the bellows 52 can be confined within the space enclosed by the first pressing sleeve 221 before operation, thus fixing the dust cover 50 and facilitating the movement of the first pressing sleeve 221 and the clamping unit 24 together.

[0061] Furthermore, the clamping unit 24 includes a clamping head 241 and a third driving part 242, which is drivenly connected to the clamping head 241, so that the clamping head 241 can also clamp the swing arm assembly 40.

[0062] Example 2: This example discloses a method for pressing a dust cover 50. The method is applied to the dust cover 50 pressing system of Example 1. The method includes steps S10 to S40, and each step is described in detail below:

[0063] In step S10, based on the pressing command, the pressing assembly 20 drives the dust cover 50 to move to the first state. The first state includes the first engaging unit 51 abutting against the expansion tube 32, and the corrugated tube 52 and the second engaging unit 53 respectively being sleeved on the outer periphery of the first guide tube 31.

[0064] In step S20, the dust cover 50 is moved to the first state by the pressing assembly 20, and the pressing assembly 20 drives the second locking unit 53 to move along the direction from the expansion tube 32 to the first guide tube 31 until the second locking unit 53 connects to the outer periphery of the locking ring 412. During the movement of the second locking unit 53, the first locking unit 51 drives the expansion tube 32 to move radially along the expansion tube 32. By driving the second locking unit 53 to move, the first locking unit 51 applies a radial force to the expansion tube 32, thereby correcting the position of the guide assembly 30.

[0065] In step S30, based on the connection between the second engaging unit 53 and the outer periphery of the engaging ring 412, the pressing assembly 20 drives the first engaging unit 51 to move along the direction from the expansion tube 32 to the first guide tube 31. After the second engaging unit 53 is in place, the first engaging unit 51 is further driven to move to ensure that the dust cover 50 is installed in an accurate position.

[0066] In step S40, the pressing is completed based on the connection between the first engaging unit 51 and the outer periphery of the extension post 4133.

[0067] Further, step S20 includes steps S21 to S22, with steps S10, S21, S22, S30, and S40 executed sequentially. Steps S21 to S22 are described in detail below:

[0068] In step S21, the dust cover 50 is moved by the pressing assembly 20 to a state where the first and second locking units 53 are connected to the outer periphery of the locking ring 412. The pressing assembly 20 then drives the second locking unit 53 to move along the direction from the expansion tube 32 to the first guide tube 31. The second locking unit 53 is then in a second state. The second state includes the second locking unit 53 abutting against the outer periphery of the locking ring 412 on the side away from the arm seat body 411.

[0069] In step S22, the second engaging unit 53 is moved along the direction from the expansion tube 32 to the first guide tube 31 by the pressing component 20 until it reaches a second state. Then, the second engaging unit 53 is moved from this second state to a point where it connects with the outer peripheral surface of the engaging ring 412. During this process, the first engaging unit 51 is in a free state. During the installation of the dust cover 50, the first pressing sleeve 221 drives the second engaging unit 53 of the dust cover 50, causing the bellows 52 to lengthen. This allows the bellows 52 to apply force to the first engaging unit 51, driving the guide component 30 to be aligned. After the guide component 30 is aligned, the first and second engaging sleeves simultaneously apply force to the dust cover 50, allowing it to move closer to the engaging ring 412 until it reaches the second engaging unit 53 for installation. After the second engaging unit 53 is installed, the second pressing sleeve 222 can independently drive the first engaging unit 51 to move closer to the second engaging unit 53 until the first engaging unit 51 is installed, completing the installation of the dust cover 50. When the first engaging unit 51 is in a free state, it can adaptively adjust its position as the guide component 30 is aligned, reducing frictional resistance with the guide component 30. This reduces the resistance to downward movement of the first engaging unit 51 after the guide component 30 is aligned.

[0070] 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 dust cover press-fitting system, characterized in that, The dust cover pressing system includes: Press-fit components; The guiding assembly includes an expansion tube and a first guiding tube; the expansion tube and the first guiding tube are connected sequentially along the axial direction of the first guiding tube. A swing arm assembly includes a swing arm base unit; the swing arm base unit includes a swing arm body, a locking ring, and a swing arm module; the locking ring is connected to the swing arm body; the swing arm module includes a ball head, a locking post, and an extension post; the ball head, the locking post, and the extension post are sequentially connected along the axial direction of the locking post; the ball head is slidably connected to the swing arm body; the locking post passes through the locking ring; The dust cover includes a first engaging unit, a bellows, and a second engaging unit; the first engaging unit, the bellows, and the second engaging unit are connected sequentially along the axial direction of the bellows. R3 > R1 > R2; where R1 is the maximum outer diameter of the expansion tube, R2 is the minimum inner diameter of the first engaging unit in its free state, and R3 is the maximum inner diameter of the first engaging unit after its inner diameter expands when subjected to external force. The first length is less than the second length; when the first engaging unit is in a free state, the length of the bellows is the first length; in the first working state, the pressing assembly applies pressure to the second engaging unit, and the length of the bellows is the second length; the first working state includes the inner peripheral wall of the first guide tube abutting against the outer peripheral wall of the extension column, and the inner peripheral wall of the first engaging unit abutting against the outer peripheral wall of the expansion tube.

2. The dust cover press-fitting system according to claim 1, characterized in that, The outer diameter of the expansion tube gradually increases along the direction from the expansion tube to the first guide tube.

3. The dust cover press-fitting system according to claim 1, characterized in that, The inner peripheral wall of the first engaging unit abuts against the outer peripheral wall of the expansion tube. When the pressing assembly does not apply pressure to the second engaging unit, the distance from the first engaging unit to the engaging ring is greater than or equal to the maximum length of the bellows when it is stretched.

4. The dust cover press-fitting system according to claim 1, characterized in that, The outer diameter of the first guide tube gradually increases along the direction from the expansion tube to the first guide tube; R4 < R2 < R5 < R3; where R4 is the minimum outer diameter of the first guide tube, and R5 is the maximum outer diameter of the first guide tube.

5. The dust cover press-fitting system according to claim 1, characterized in that, The guiding component further includes a groove; the groove is recessed from the outer peripheral wall of the first guiding tube toward the inner peripheral wall of the first guiding tube.

6. The dust cover press-fitting system according to claim 1, characterized in that, The guiding assembly further includes a second guiding tube; the first guiding tube, the expansion tube, and the second guiding tube are connected sequentially along the axial direction of the first guiding tube; the radial direction of the second guiding tube gradually increases along the direction from the expansion tube to the first guiding tube. R5 < R2; where R5 is the maximum diameter of the second guide tube.

7. The dust cover press-fitting system according to claim 1, characterized in that, The pressing assembly includes a substrate and a pressing unit; the pressing unit includes a first pressing sleeve and a second pressing sleeve; the first pressing sleeve is connected to the substrate; the second pressing sleeve is slidably connected to the first pressing sleeve; the second pressing sleeve is disposed within the space surrounded by the first pressing sleeve; the second pressing sleeve moves along the central axis of the second pressing sleeve; the first pressing sleeve is used to drive the second locking unit; the second pressing sleeve is used to drive the first locking unit.

8. A dust cover press-fitting system according to claim 7, characterized in that, The pressing assembly further includes a clamping unit; the clamping unit is connected to the substrate; the clamping unit applies a force to the second locking unit, causing the second locking unit to fit against the first pressing sleeve.

9. A method for pressing dust covers, characterized in that, The dust cover pressing method is applied to a dust cover pressing system according to any one of claims 1 to 8, and the dust cover pressing method includes: Triggered by a pressing command, the pressing assembly drives the dust cover to move to a first state; wherein, the first state includes the first engaging unit abutting against the expansion tube, and the corrugated tube and the second engaging unit respectively being sleeved on the outer periphery of the first guide tube; The pressing assembly drives the second locking unit to move along the direction from the expansion tube to the first guide tube until the second locking unit connects with the outer periphery of the locking ring; wherein, during the movement of the second locking unit, the first locking unit drives the expansion tube to move radially along the expansion tube; Based on the connection between the second engaging unit and the outer peripheral side of the engaging ring, the pressing assembly drives the first engaging unit to move along the direction from the expansion tube to the first guide tube; The pressing is completed based on the connection between the first engaging unit and the outer periphery of the extension post.

10. A method for pressing a dust cover according to claim 9, characterized in that, The pressing assembly drives the second engaging unit to move along the direction from the expansion tube to the first guide tube until the second engaging unit connects with the outer periphery of the engaging ring, including: The pressing assembly drives the second engaging unit to move along the direction from the expansion tube to the first guide tube until the second engaging unit is in a second state; wherein, the second state includes the second engaging unit abutting against the outer peripheral surface of the engaging ring on the side away from the arm seat body; The pressing assembly drives the second engaging unit to move from the second state along the direction from the expansion tube to the first guide tube until the second engaging unit connects with the outer peripheral surface of the engaging ring; wherein, during the process of the second engaging unit moving from the second state to the process of the second engaging unit connecting with the outer peripheral surface of the engaging ring, the first engaging unit is in a free state.

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