Double bushing swing arm press-in method and system

Abstract

The present application relates to the technical field of swing arm, in particular to a double bushing swing arm press mounting method and system. The initial positioning of the swing arm is completed; the second bushing is pushed by the horizontal pressing assembly to abut against the horizontal pressing ring to the secondary positioning with the fixed seat unit, and the horizontal pressing ring drives the movable seat unit to the compression position through the vertical pressing ring; wherein, the secondary positioning includes the abutment positioning of one end surface of the horizontal pressing ring in the horizontal direction with the side surface of the fixed seat unit; the horizontal pressing assembly press fits the second bushing to the second mounting position in the hollow cavity of the horizontal pressing ring; the vertical pressing assembly press fits the first bushing to the first mounting position in the hollow cavity of the vertical pressing ring, and one end surface of the horizontal pressing ring in the horizontal direction is spaced apart from the side surface of the fixed seat unit after the horizontal pressing assembly is retracted. In this way, the problem of difficult press mounting positioning of the double bushing swing arm is solved.

Description

Technical Field

[0001] This invention relates to the field of swing arm technology, and more specifically, to a method and system for pressing a double bushing swing arm. Background Technology

[0002] Currently, in the assembly and production process of the swing arm, two bushings of different specifications need to be installed on the swing arm, and the two bushings adopt different pressing directions. The swing arm has mounting holes that match the two bushings respectively. During assembly, the swing arm must first be placed on the positioning table, so that the two mounting holes of the swing arm are aligned with the corresponding positioning structures on the positioning table. After the swing arm is positioned, a special pressing device is used to press one bushing vertically into the corresponding mounting hole, and the other bushing horizontally into the other mounting hole, thus completing the assembly of the swing arm and the two bushings.

[0003] However, in actual assembly operations, when the swing arm is placed on the positioning table for positioning of the mounting holes and the positioning table, since the two mounting holes correspond to bushings with different pressing directions, and the positioning table needs to provide positioning support for the two mounting holes at the same time, it is difficult to position the two mounting holes at the same time, and the placement and removal of the swing arm is inconvenient, which affects the smoothness of the assembly process. Summary of the Invention

[0004] To solve the problem of difficult positioning during press-fitting of double bushing swing arms, this invention provides a method and system for press-fitting double bushing swing arms.

[0005] In a first aspect, the present invention provides a method for pressing a double bushing swing arm, the method comprising:

[0006] The initial positioning of the swing arm is completed; the initial positioning includes positioning the vertical pressure ring on the movable seat unit, positioning the lower circumferential surface of the flat pressure ring on the fixed seat unit, positioning the first bushing on the movable seat unit, and positioning the second bushing on the flat pressure assembly.

[0007] The flat pressure assembly pushes the second bushing against the flat pressure ring to a secondary positioning with the fixed seat unit, and the flat pressure ring drives the movable seat unit to a compressed position through the vertical pressure ring; wherein, the secondary positioning includes the flat pressure ring's horizontal end face abutting against the side of the fixed seat unit for positioning;

[0008] The flattening assembly presses the second bushing into the second mounting position within the hollow cavity of the flattening ring;

[0009] The vertical pressure assembly presses the first bushing into the first installation position inside the hollow cavity of the vertical pressure ring, and after the flat pressure assembly retracts, one end face of the flat pressure ring in the horizontal direction is spaced apart from the side of the fixed base unit.

[0010] In some embodiments, the vertical pressure assembly presses the first bushing into a first mounting position within the hollow cavity of the vertical pressure ring, and after the flat pressure assembly retracts, one end face of the flat pressure ring in the horizontal direction is spaced apart from the side of the fixed base unit, including:

[0011] After the flat pressure component retracts, the compressive force of the movable seat unit during the secondary positioning process drives the movable seat unit to spring back to the vertical pressure state; wherein, the vertical pressure state includes the horizontal end face of the flat pressure ring being spaced apart from the side of the fixed seat unit, and the movable seat unit moving toward the fixed seat unit to a first set position;

[0012] The pressure assembly presses the first bushing into the first mounting position within the hollow cavity of the pressure ring.

[0013] In some embodiments, the flattening assembly pushes the second bushing against the flattening ring to a secondary positioning with the fixed base unit, including:

[0014] The clamping unit moves toward the flat pressure ring until the minimum distance between the clamping unit and the flat pressure ring is less than or equal to a set value;

[0015] The pressure-flattening component pushes the second bushing against the pressure-flattening ring until it is positioned again with the fixed base unit.

[0016] In some embodiments, the minimum distance between the clamping unit and the flat pressure ring is less than or equal to a set value, including:

[0017] The clamping unit abuts against the flat pressure ring and applies a force to the flat pressure ring in the direction of approaching the fixed base unit.

[0018] In some embodiments, the flattening assembly pushes the second bushing against the flattening ring to a secondary positioning with the fixed base unit, including:

[0019] The pressure-flattening component pushes the second bushing against the pressure-flattening ring until it is positioned secondary against the fixed base unit;

[0020] The clamping unit abuts against the outer circumferential surface of the flat pressure ring and applies a force to the flat pressure ring; wherein, during the secondary positioning, the force applied by the clamping unit to the flat pressure ring is greater than the force applied by the clamping unit to the flat pressure ring at other positions.

[0021] In some embodiments, when the minimum distance between the clamping unit and the flat pressure ring is less than or equal to a set value, the central axis of the clamping unit is located on the side of the flat pressure ring's central axis away from the swing arm.

[0022] In some embodiments, the flat pressure ring drives the movable seat unit to the compression position via the vertical pressure ring, including:

[0023] The flat pressure ring drives the movable seat unit to the compression position through the vertical pressure ring, while the vertical pressure assembly moves towards the vertical pressure ring to a set state; wherein, the set state includes the vertical pressure ring and the vertical pressure assembly being spaced apart.

[0024] In some embodiments, the setting state further includes the pressure ring being located in the projection area of ​​the pressure assembly toward the movable seat unit, and the minimum distance between the pressure ring and the pressure assembly being a first set distance; wherein the first set distance is less than a second set distance; the second set distance is the dimension of the overlapping portion of the pressure ring and the first bushing along the central axis of the pressure ring.

[0025] In a second aspect, the present invention provides a double-bulb swing arm press-fitting system, wherein the double-bulb swing arm press-fitting system is applied to any of the double-bulb swing arm press-fitting methods described in the first aspect, and the double-bulb swing arm press-fitting system comprises:

[0026] The swing arm includes a first arm body, a vertical pressure ring, a first bushing, a second arm body, a flat pressure ring, and a second bushing; the vertical pressure ring is connected to one end of the first arm body; the second arm body is connected to the first arm body; the flat pressure ring is connected to the end of the first arm body away from the second arm body; the flat pressure ring and the vertical pressure ring are spaced apart; the central axis of the flat pressure ring is perpendicular to the central axis of the vertical pressure ring.

[0027] The fixing unit is used to position the flat pressure ring;

[0028] A pressure-flattening assembly is used to drive the second bushing to move toward the pressure-flattening ring;

[0029] The movable seat unit is used to position the vertical pressure ring;

[0030] A vertical pressure assembly is used to drive the first bushing to move toward the vertical pressure ring;

[0031] The working state of the double bushing swing arm press-fitting system includes the flat pressure ring being set on the fixed base unit and the vertical pressure ring being set on the movable base unit. The central axis of the flat pressure ring is parallel to the set plane, and the central axis of the vertical pressure ring is perpendicular to the set plane. The flat pressure component drives the second bushing to move toward the flat pressure ring, so that the second bushing drives the flat pressure ring to move to the secondary positioning. Then, the flat pressure component drives the second bushing to move to the second installation position in the hollow cavity of the flat pressure ring. Subsequently, the vertical pressure component drives the first bushing to move toward the vertical pressure ring to the first installation position in the hollow cavity of the vertical pressure ring.

[0032] In some embodiments, the double bushing swing arm press-fitting system includes a fixed seat assembly; the fixed seat assembly includes a fixed seat unit and a pressing unit;

[0033] The working state also includes the clamping unit restricting the movement of the central axis of the vertical pressure ring.

[0034] To solve the problem of difficult press-fit positioning of double bushing swing arms, the present invention has the following advantages:

[0035] By first completing the initial positioning of the swing arm, then the flat pressure assembly pushes the second bushing to abut against the flat pressure ring until it is positioned again with the fixed seat unit, and the flat pressure ring drives the movable seat unit to the compression position through the vertical pressure ring. Subsequently, the flat pressure assembly presses the second bushing into the second installation position in the hollow cavity of the flat pressure ring. Finally, the vertical pressure assembly presses the first bushing into the first installation position in the hollow cavity of the vertical pressure ring. After the flat pressure assembly retracts, one end face of the flat pressure ring in the horizontal direction is spaced apart from the side of the fixed seat unit. This allows for flexible movement of the movable seat unit and release of the flat pressure ring after pressing, thereby avoiding mutual interference between the vertical pressure ring and the flat pressure ring on the swing arm and ultimately solving the problem of inconvenient placement and removal of the swing arm. Attached Figure Description

[0036] Figure 1 A flowchart of a double bushing swing arm press-fitting method according to one embodiment is shown;

[0037] Figure 2 A schematic diagram of a double bushing swing arm press-fitting system according to one embodiment is shown;

[0038] Figure 3 It shows Figure 2 A schematic diagram of part of the double bushing swing arm press-fitting system;

[0039] Figure 4 It shows Figure 3 A top view of part of the double bushing swing arm press-fitting system;

[0040] Figure 5 It shows Figure 3 A schematic diagram of the mounting bracket assembly of the double bushing swing arm press-fitting system;

[0041] Figure 6 It shows Figure 5 Enlarged view of point A in the double bushing swing arm press-fitting system;

[0042] Figure 7 It shows Figure 5 A top view of the mounting bracket assembly of the double bushing swing arm press-fitting system;

[0043] Figure 8 A schematic diagram of a swing arm according to one embodiment is shown;

[0044] Figure 9 It shows Figure 8 Top view of the middle swing arm;

[0045] Figure 10 It shows Figure 9 A sectional view of the first bushing in the middle;

[0046] Figure 11 It shows Figure 9 A cross-sectional view of the second bushing.

[0047] Reference numerals: Base assembly 10; Fixing base assembly 20; Fixing base unit 21; Fixing base body 211; First positioning part 212; First limiting part 213; Pressing unit 22; First driving part 221; Pressing head 222; Support column 23; Flat pressing assembly 30; Flat pressing unit 31; Second driving part 311; Flat pressing head 312; Movable support unit 32; Movable support body 321; First translation guide rail 322; Third driving part 323; Movable seat assembly 40; movable seat unit 41; movable seat body 411; second positioning part 412; third positioning part 413; second translation guide rail 414; springback unit 42; second limiting part 421; elastic body 422; third limiting part 43; vertical pressure assembly 50; fourth drive part 51; vertical pressure head 52; swing arm 60; first arm body 61; vertical pressure ring 62; first bushing 63; second arm body 64; flat pressure ring 65; second bushing 66. Detailed Implementation

[0048] 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.

[0049] 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.

[0050] Currently, in the assembly and production process of the swing arm 60, two bushings of different specifications need to be assembled on the swing arm 60, and the two bushings adopt different pressing directions. The swing arm 60 has mounting holes that match the two bushings respectively. During assembly, the swing arm 60 must first be placed on the positioning table, aligning the two mounting holes of the swing arm 60 with the corresponding positioning structures on the positioning table. After positioning the swing arm 60, a dedicated pressing device is used to press one bushing vertically into its corresponding mounting hole, and the other bushing horizontally into its other mounting hole, thus completing the assembly of the swing arm 60 and the two bushings. However, in actual assembly operations, when the swing arm 60 is placed on the positioning table for positioning of the mounting holes and the positioning table, because the two mounting holes correspond to bushings with different pressing directions, and the positioning table needs to simultaneously provide positioning support for both mounting holes, it is difficult to simultaneously position both mounting holes, and the placement and removal of the swing arm 60 are inconvenient, affecting the smoothness of the assembly process.

[0051] Example 1:

[0052] To address the aforementioned issues, this embodiment provides a method for press-fitting a double-shoulder swing arm 60. The double-shoulder swing arm 60 press-fitting system involved in this embodiment includes a swing arm 60, a fixed seat unit 21, a flat pressing assembly 30, a movable seat unit 41, and a vertical pressing assembly 50.

[0053] The swing arm 60 includes a first arm body 61, a vertical pressure ring 62, a first bushing 63, a second arm body 64, a flat pressure ring 65, and a second bushing 66. The vertical pressure ring 62 is connected to one end of the first arm body 61. The second arm body 64 is integrally formed with the first arm body 61. The flat pressure ring 65 is connected to the end of the first arm body 61 away from the second arm body 64, spaced apart from the vertical pressure ring 62 and perpendicular to its central axis, allowing for horizontal pressing of the second bushing 66 and vertical pressing of the first bushing 63. The fixed seat unit 21 positions the flat pressure ring 65, and the flat pressure assembly 30 drives the second bushing 66 to move toward the flat pressure ring 65; the movable seat unit 41 positions the vertical pressure ring 62, and the vertical pressure assembly 50 drives the first bushing 63 to move toward the vertical pressure ring 62.

[0054] In this embodiment, as Figure 1 As shown, the press-fitting method for the double bushing swing arm 60 includes steps S10 to S40. The press-fitting method for the double bushing swing arm 60 executes steps S10, S20, S30, and S40 sequentially. Steps S10 to S40 will be described in detail below:

[0055] Step S10 completes the initial positioning of the swing arm 60. Initial positioning includes positioning the vertical pressure ring 62 on the movable seat unit 41, positioning the lower circumferential surface of the flat pressure ring 65 on the fixed seat unit 21, positioning the first bushing 63 on the movable seat unit 41, and positioning the second bushing 66 on the flat pressure assembly 30. While the first bushing 63 is positioned on the movable seat unit 41, it is also above the vertical pressure ring 62, with its outer circumferential wall partially overlapping the inner circumferential wall of the vertical pressure ring 62. This ensures accurate initial positioning of the swing arm 60, preventing assembly failure due to initial position deviation during subsequent assembly, and thus ensuring the orderly progress of the overall assembly process.

[0056] Since the swing arm 60 needs initial positioning, the distance between the movable seat unit 41 and the fixed seat unit 21 must be less than the distance between the vertical pressure ring 62 and the flat pressure ring 65. This facilitates the initial positioning of the swing arm 60. Therefore, the movable seat unit 41 is configured to be able to move along... Figure 4 The left and right movement shown makes it easy to adjust the distance between the movable seat unit 41 and the fixed seat unit 21.

[0057] In step S20, to facilitate the precise pressing of the second bushing 66, the flat pressing assembly 30 pushes the second bushing 66 against the flat pressing ring 65 until it is repositioned against the fixed seat unit 21. This further refines the relative position of the flat pressing ring 65 and the fixed seat unit 21, ensuring that the fixed seat unit 21 supports the positions of the flat pressing ring 65 and the second bushing 66 during subsequent pressing of the second bushing 66 and the flat pressing ring 65. The flat pressing ring 65, through the vertical pressing ring 62, drives the movable seat unit 41 to the compression position, that is, through the second arm 64 and the first arm 61 of the swing arm 60, the vertical pressing ring 62 is driven towards the compression position. Figure 4 As shown, the vertical pressure ring 62 moves to the right, and the movable seat unit 41 has completed its initial positioning. Therefore, the movable seat unit 41 is subjected to the force of the vertical pressure ring 62 in the direction shown. Figure 4 The movement is shown to the right. The secondary positioning includes positioning the horizontal end face of the flat pressure ring 65 against the side of the fixed base unit 21.

[0058] In step S30, the flattening assembly 30 presses the second bushing 66 into the second mounting position within the hollow cavity of the flattening ring 65, achieving a secure assembly between the second bushing 66 and the flattening ring 65 and preventing the second bushing 66 from loosening or shifting. After moving to the second mounting position, the contact area between the inner circumferential wall of the flattening ring 65 and the outer circumferential wall of the second bushing 66 is greater than or equal to a second predetermined area, which is 90% of the area of ​​the inner wall of the flattening ring 65.

[0059] In step S40, the vertical pressure assembly 50 presses the first bushing 63 into the first installation position within the hollow cavity of the vertical pressure ring 62, achieving a stable assembly between the first bushing 63 and the vertical pressure ring 62, preventing the first bushing 63 from loosening or shifting. After moving to the first installation position, the contact area between the inner peripheral wall of the vertical pressure ring 62 and the outer peripheral wall of the first bushing 63 is greater than or equal to a first set area, which is 90% of the area of ​​the inner wall of the flat pressure ring 65. Furthermore, after the flat pressure assembly 30 retracts, one horizontal end face of the flat pressure ring 65 is spaced apart from the side of the fixed base unit 21. This releases the positioning constraint between the flat pressure ring 65 and the fixed base unit 21, allowing the horizontal end face of the flat pressure ring 65 to be spaced apart from the side of the fixed base unit 21, thus facilitating the installation of the first bushing 63 and the vertical pressure ring 62, and the removal of the swing arm 60 after the second bushing 66 and the flat pressure ring 65 are pressed together. During press-fitting, the first bushing 63 and the second bushing 66 are press-fitted in stages to ensure stability during the process. Simultaneously, separate positioning is used during positioning, which reduces the precision requirements for positioning. Under normal operating conditions, the double bushing swing arm 60 press-fitting system has a relatively low cost.

[0060] Further, step S40 includes steps S41 and S42. The double bushing swing arm 60 pressing method sequentially executes steps S10, S20, S30, S41, and S42. Steps S41 and S42 will be described in detail below:

[0061] In step S41, after the flat pressure assembly 30 retracts, the compressive force of the movable seat unit 41 during the secondary positioning process drives the movable seat unit 41 to spring back to the vertical pressure state. This allows the flat pressure ring 65 to be spaced apart from the side of the fixed seat unit 21, preventing the fixed seat unit 21 from being worn due to prolonged contact with the side close to the flat pressure assembly 30. Simultaneously, the compressive force of the movable seat unit 41 originates from the elastic body 422, so the springback prevents the elastic body 422 from being compressed for extended periods, thereby extending its service life. The vertical pressure state includes one horizontal end face of the flat pressure ring 65 being spaced apart from the side of the fixed seat unit 21, and the movable seat unit 41 moving towards the fixed seat unit 21 to a first predetermined position. Preferably, the first predetermined position includes the side of the movable seat unit 41 abutting against the third limiting part 43, thereby ensuring that the central axis of the vertical pressure assembly 50 coincides with that of the first bushing 63, ensuring that the subsequent vertical pressure assembly 50 can accurately press the first bushing 63 into the first installation position within the hollow cavity of the vertical pressure ring 62. The third limiting part 43 is located on one side of the movable seat unit 41, and can limit the movable seat unit 41 when it moves toward the third limiting part 43.

[0062] In step S42, the vertical pressure assembly 50 presses the first bushing 63 into the first mounting position inside the hollow cavity of the vertical pressure ring 62, thereby achieving a stable assembly between the first bushing 63 and the vertical pressure ring 62.

[0063] Further, step S20 includes steps S21 and S22. The double bushing swing arm 60 pressing method sequentially executes steps S10, S21, S22, S30, and S40. Steps S21 and S22 will be described in detail below:

[0064] Step S21: The double bushing swing arm 60 pressing system includes a clamping unit 22. The clamping unit 22 moves towards the flat pressure ring 65 until the minimum distance between the clamping unit 22 and the flat pressure ring 65 is less than or equal to a set value. This prevents the flat pressure ring 65 from jumping towards the clamping assembly when the flat pressure component 30 pushes the second bushing 66, causing the swing arm 60 to tilt and creating the risk of not being able to press the second bushing 66 subsequently. Therefore, the clamping unit 22 is used to limit the vertical movement of the flat pressure ring 65. The clamping unit 22 is located above the flat pressure ring 65, and the set value is the distance between the clamping unit and the flat pressure ring 65. Figure 2 The distance shown is in the vertical direction.

[0065] In step S22, the flat pressure assembly 30 pushes the second bushing 66 to abut against the flat pressure ring 65 until it is positioned again with the fixed base unit 21, ensuring the relative position of the flat pressure ring 65 and the fixed base unit 21 and ensuring the accurate positioning of the flat pressure ring 65.

[0066] Furthermore, the minimum distance between the clamping unit 22 and the flat pressure ring 65 is less than or equal to a set value, including:

[0067] The clamping unit 22 abuts against the flat pressure ring 65. At this time, the clamping unit 22 is located in the upward projection area of ​​the flat pressure ring 65. The clamping unit 22 abuts against the flat pressure ring 65 in the vertical direction, applying a force to the flat pressure ring 65 in the direction closer to the fixed base unit 21, that is, applying a downward force to the flat pressure ring 65. This avoids the risk of the flat pressure ring 65 moving upward when the flat pressure assembly 30 presses the second bushing 66, thereby further fixing the position of the flat pressure ring 65 and ensuring the stable pressing of the flat pressure ring 65 and the second bushing 66.

[0068] Further, step S22 includes steps S221 and S222. The double bushing swing arm 60 pressing method sequentially executes steps S10, S21, S221, S222, S30, and S40. Steps S221 and S222 will be described in detail below:

[0069] In step S221, the flat pressing assembly 30 pushes the second bushing 66 against the flat pressing ring 65 until it is repositioned with the fixed base unit 21, ensuring the relative position of the flat pressing ring 65 and the fixed base unit 21 is stable, providing a precise positional basis for the subsequent entry of the second bushing 66 into the flat pressing ring 65. During the movement of the flat pressing ring 65, the force applied by the pressing unit to the flat pressing ring 65 is small, thereby reducing the energy consumption of the pressing unit.

[0070] In step S222, since the flat pressure ring 65 does not need to move at this time, but only needs to cooperate with the assembly of the second bushing 66, to avoid the positioning accuracy being compromised by the movement of the flat pressure ring 65, the clamping unit 22 abuts against the outer circumferential surface of the flat pressure ring 65 and applies a force to the flat pressure ring 65. Specifically, the force applied by the clamping unit 22 to the flat pressure ring 65 during the secondary positioning is greater than the force applied by the clamping unit 22 to the flat pressure ring 65 at other positions. This larger force effectively constrains the flat pressure ring 65, limiting its positional movement.

[0071] Furthermore, since the weight of the first arm 61 and the second arm 64 is present on the side of the flat pressure ring 65 closer to the swing arm 60, while the weight is smaller on the side of the flat pressure ring 65 farther from the swing arm 60, the central axis of the clamping unit 22 is located on the side of the flat pressure ring 65 farther from the swing arm 60 when the minimum distance between the clamping unit 22 and the flat pressure ring 65 is less than or equal to a set value. This allows the clamping unit 22 to effectively constrain the side of the flat pressure ring 65 away from the first arm 61, ensuring uniform force on both sides of the flat pressure ring 65 and preventing positional displacement due to unbalanced force on one side of the flat pressure ring 65. At the same time, the clamping unit 22 does not need to output excessive driving force to maintain the stability of the flat pressure ring 65. Therefore, the driving torque output by the clamping unit 22 reduces the energy consumption of the first drive unit 221 while satisfying the positional constraint of the flat pressure ring 65.

[0072] Furthermore, when the flat pressure ring 65, in step S20, drives the movable seat unit 41 to the compression position via the vertical pressure ring 62, the vertical pressure assembly 50 simultaneously moves towards the vertical pressure ring 62 to a set state. This simultaneous movement of the vertical pressure assembly 50 and the movable seat unit 41 reduces the overall pressing process time, ultimately improving the assembly efficiency of the first bushing 63 and the vertical pressure ring 62. The set state includes the vertical pressure ring 62 and the vertical pressure assembly 50 being spaced apart.

[0073] Furthermore, the setting also includes the vertical pressure ring 62 being located within the projection area of ​​the vertical pressure assembly 50 towards the movable seat unit 41, ensuring that the vertical pressure assembly 50 can avoid positional deviation when pressing the vertical pressure ring 62 and the first bushing 63. The minimum distance between the vertical pressure ring 62 and the vertical pressure assembly 50 is a first set distance. The first set distance is less than a second set distance, which is the dimension of the overlapping portion of the vertical pressure ring 62 and the first bushing 63 along the central axis of the vertical pressure ring 62. This effectively limits the positional movement of the vertical pressure ring 62 during the pressing of the second bushing 66 into the flat pressure ring 65, thereby preventing the vertical pressure ring 62 from shaking due to the movement of the swing arm 60. It also effectively prevents the first bushing 63 from shifting due to shaking, further preventing the first bushing 63 from moving to a position separated from the vertical pressure ring 62, ensuring the positional stability of the first bushing 63 and the vertical pressure ring 62, and the first bushing 63 and the movable seat unit 41.

[0074] Example 2:

[0075] In this embodiment, as Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 As shown, a double bushing swing arm 60 press-fitting system is provided. The double bushing swing arm 60 press-fitting system is applied to any of the double bushing swing arm 60 press-fitting methods in the above embodiments. The double bushing swing arm 60 press-fitting system includes a swing arm 60, a fixed seat unit 21, a flat pressing component 30, a movable seat unit 41, and a vertical pressing component 50.

[0076] like Figure 8 , Figure 9 , Figure 10 , Figure 11 As shown, the swing arm 60 includes a first arm body 61, a vertical pressure ring 62, a first bushing 63, a second arm body 64, a flat pressure ring 65, and a second bushing 66. The vertical pressure ring 62 is connected to one end of the first arm body 61, and the second arm body 64 is connected to the first arm body 61. The second arm body 64 and the first arm body 61 are integrally formed to ensure the strength of the swing arm 60. The flat pressure ring 65 is connected to the end of the first arm body 61 away from the second arm body 64. The flat pressure ring 65 and the vertical pressure ring 62 are spaced apart, and the central axis of the flat pressure ring 65 is perpendicular to the central axis of the vertical pressure ring 62. This allows for horizontal pressing of the second bushing 66 and vertical pressing of the first bushing 63, and also allows for compatibility with other components.

[0077] The fixed seat unit 21 is used to position the flat pressure ring 65. The flat pressure assembly 30 is used to drive the second bushing 66 to move toward the flat pressure ring 65. The movable seat unit 41 is used to position the vertical pressure ring 62. The vertical pressure assembly 50 is used to drive the first bushing 63 to move toward the vertical pressure ring 62.

[0078] The working state of the double bushing swing arm 60 press-fitting system includes a flat pressure ring 65 set on the fixed seat unit 21 and a vertical pressure ring 62 set on the movable seat unit 41. The central axis of the flat pressure ring 65 is set parallel to the set plane, and the central axis of the vertical pressure ring 62 is set perpendicular to the set plane. The flat pressure assembly 30 drives the second bushing 66 to move toward the flat pressure ring 65, so that the second bushing 66 drives the flat pressure ring 65 to move to the secondary positioning. Then, the flat pressure assembly 30 drives the second bushing 66 to move to the second installation position in the hollow cavity of the flat pressure ring 65. Subsequently, the vertical pressure assembly 50 drives the first bushing 63 to move toward the vertical pressure ring 62 to the first installation position in the hollow cavity of the vertical pressure ring 62. This ensures the orderly execution of the pressing process, avoiding interference between the positioning and pressing of the flat pressure ring 65 and the vertical pressure ring 62. The second bushing 66 accurately enters the flat pressure ring 65 and the first bushing 63 accurately enters the corresponding installation position of the vertical pressure ring 62. At the same time, the orderly workflow can reduce operational chaos during the assembly process, further improving the accuracy and efficiency of pressing the double bushing swing arm 60.

[0079] Furthermore, such as Figure 2 As shown, the double bushing swing arm 60 press-fit system includes a fixed base assembly 20. The fixed base assembly 20 includes a fixed base unit 21 and a clamping unit 22. In operation, the clamping unit 22 also restricts the movement of the central axis of the vertical pressure ring 62. This effectively limits the positional movement of the vertical pressure ring 62 during the press-fitting of the second bushing 66 into the flat pressure ring 65, thereby preventing the swing arm 60 from shaking due to the movement of the vertical pressure ring 62.

[0080] In other embodiments, such as Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 As shown, the double bushing swing arm 60 press-fit system also includes a base assembly 10 and a movable seat assembly 40. The base assembly 10 provides a mounting foundation and support for the fixed seat assembly 20, the flat pressure assembly 30, the movable seat assembly 40, and the vertical pressure assembly 50.

[0081] The fixing assembly also includes a support column 23. The support column 23 is used to support the first swing arm 60 and the second swing arm 60.

[0082] The fixed base unit 21 includes a fixed base body 211, a first positioning part 212, and a first limiting part 213. The fixed base body 211 is connected to the first positioning part 212 and the fixed base body 211 is connected to the first limiting part 213. The first positioning part 212 is used to position the flat pressure ring 65, and the first limiting part 213 is used to limit the flat pressure ring 65.

[0083] The clamping unit 22 includes a first driving part 221 and a clamping head 222. The first driving part 221 is used to drive the clamping head 222 along... Figure 2 It moves in the up and down direction.

[0084] The flattening assembly 30 includes a flattening unit 31 and a movable support unit 32. The flattening unit 31 includes a second drive section 311 and a flattening head 312. The second drive section 311 is used to drive the flattening head 312 along... Figure 4 It moves in the left and right directions.

[0085] The movable support unit 32 includes a movable support body 321, a first translation guide rail 322, and a third drive unit 323. The movable support body 321 is used for positioning the second bushing 66, and the third drive unit 323 is used to drive the movable support body to move along the first translation guide rail 322.

[0086] The movable seat assembly 40 includes a movable seat unit 41, a spring-back unit 42, and a third limiting part 43.

[0087] The movable seat unit 41 includes a movable seat body 411, a second positioning part 412, a third positioning part 413, and a second translation guide rail 414. The second positioning part 412 is used to position the vertical pressure ring 62, and the third positioning part 413 is used to position the first bushing 63.

[0088] The springback unit 42 includes a second limiting part 421 and an elastic body 422. The movable seat 411 is located between the second limiting part 421 and the third limiting part 422. The elastic body 422 is connected to the second limiting part 421. The second limiting part 421 and the third limiting part 422 are used to limit the movement range of the movable seat 411.

[0089] The vertical pressure assembly 50 includes a fourth drive unit 51 and a vertical pressure head 52. The fourth drive unit 51 is used to drive the vertical pressure head 52 along... Figure 2 It moves in the up and down direction.

[0090] Those skilled in the art will understand that the above embodiments are specific examples of implementing this disclosure, and in practical applications, various changes can be made in form and detail without departing from the scope of this disclosure.

Claims

1. A method for pressing a double-shoulder swing arm, characterized in that, The double bushing swing arm pressing method includes: The initial positioning of the swing arm is completed; the initial positioning includes positioning the vertical pressure ring on the movable seat unit, positioning the lower circumferential surface of the flat pressure ring on the fixed seat unit, positioning the first bushing on the movable seat unit, and positioning the second bushing on the flat pressure assembly. The flat pressure assembly pushes the second bushing against the flat pressure ring to a secondary positioning with the fixed seat unit, and the flat pressure ring drives the movable seat unit to a compressed position through the vertical pressure ring; wherein, the secondary positioning includes the flat pressure ring's horizontal end face abutting against the side of the fixed seat unit for positioning; The flattening assembly presses the second bushing into the second mounting position within the hollow cavity of the flattening ring; The vertical pressure assembly presses the first bushing into the first installation position inside the hollow cavity of the vertical pressure ring, and after the flat pressure assembly retracts, one end face of the flat pressure ring in the horizontal direction is spaced apart from the side of the fixed base unit.

2. The method for pressing a double bushing swing arm according to claim 1, characterized in that, The vertical pressure assembly presses the first bushing into the first mounting position within the hollow cavity of the vertical pressure ring, and after the flat pressure assembly retracts, one end face of the flat pressure ring in the horizontal direction is spaced apart from the side of the fixed base unit, including: After the flat pressure component retracts, the compressive force of the movable seat unit during the secondary positioning process drives the movable seat unit to spring back to the vertical pressure state; wherein, the vertical pressure state includes the horizontal end face of the flat pressure ring being spaced apart from the side of the fixed seat unit, and the movable seat unit moving toward the fixed seat unit to a first set position; The pressure assembly presses the first bushing into the first mounting position within the hollow cavity of the pressure ring.

3. The method for pressing a double bushing swing arm according to claim 1, characterized in that, The method of pushing the second bushing against the flattening ring to achieve secondary positioning with the fixed base unit includes: The clamping unit moves toward the flat pressure ring until the minimum distance between the clamping unit and the flat pressure ring is less than or equal to a set value; The pressure-flattening component pushes the second bushing against the pressure-flattening ring until it is positioned again with the fixed base unit.

4. The method for pressing a double bushing swing arm according to claim 3, characterized in that, The minimum distance between the clamping unit and the flattening ring is less than or equal to a set value, including: The clamping unit abuts against the flat pressure ring and applies a force to the flat pressure ring in the direction of approaching the fixed base unit.

5. The method for pressing a double bushing swing arm according to claim 3, characterized in that, The method of pushing the second bushing against the flattening ring to achieve secondary positioning with the fixed base unit includes: The pressure-flattening component pushes the second bushing against the pressure-flattening ring until it is positioned secondary against the fixed base unit; The clamping unit abuts against the outer circumferential surface of the flat pressure ring and applies a force to the flat pressure ring; wherein, during the secondary positioning, the force applied by the clamping unit to the flat pressure ring is greater than the force applied by the clamping unit to the flat pressure ring at other positions.

6. The method for pressing a double bushing swing arm according to claim 3, characterized in that, When the minimum distance between the clamping unit and the flat pressure ring is less than or equal to a set value, the central axis of the clamping unit is located on the side of the flat pressure ring's central axis away from the swing arm.

7. The method for pressing a double bushing swing arm according to claim 1, characterized in that, The flat pressure ring drives the movable seat unit to the compression position via the vertical pressure ring, including: The flat pressure ring drives the movable seat unit to the compression position through the vertical pressure ring, while the vertical pressure assembly moves towards the vertical pressure ring to a set state; wherein, the set state includes the vertical pressure ring and the vertical pressure assembly being spaced apart.

8. The method for pressing a double bushing swing arm according to claim 7, characterized in that, The setting state also includes the pressure ring being located in the projection area of ​​the pressure assembly toward the movable seat unit, and the minimum distance between the pressure ring and the pressure assembly being a first set distance; wherein, the first set distance is less than a second set distance; the second set distance is the dimension of the overlapping portion of the pressure ring and the first bushing along the central axis of the pressure ring.

9. A double-bushing swing arm press-fitting system, characterized in that, The double bushing swing arm press-fitting system is applied to any one of the double bushing swing arm press-fitting methods described in claims 1 to 8, and the double bushing swing arm press-fitting system comprises: The swing arm includes a first arm body, a vertical pressure ring, a first bushing, a second arm body, a flat pressure ring, and a second bushing; the vertical pressure ring is connected to one end of the first arm body; the second arm body is connected to the first arm body; the flat pressure ring is connected to the end of the first arm body away from the second arm body; the flat pressure ring and the vertical pressure ring are spaced apart; the central axis of the flat pressure ring is perpendicular to the central axis of the vertical pressure ring. The fixing unit is used to position the flat pressure ring; A pressure-flattening assembly is used to drive the second bushing to move toward the pressure-flattening ring; The movable seat unit is used to position the vertical pressure ring; A vertical pressure assembly is used to drive the first bushing to move toward the vertical pressure ring; The working state of the double bushing swing arm press-fitting system includes the flat pressure ring being set on the fixed base unit and the vertical pressure ring being set on the movable base unit. The central axis of the flat pressure ring is parallel to the set plane, and the central axis of the vertical pressure ring is perpendicular to the set plane. The flat pressure component drives the second bushing to move toward the flat pressure ring, so that the second bushing drives the flat pressure ring to move to the secondary positioning. Then, the flat pressure component drives the second bushing to move to the second installation position in the hollow cavity of the flat pressure ring. Subsequently, the vertical pressure component drives the first bushing to move toward the vertical pressure ring to the first installation position in the hollow cavity of the vertical pressure ring.

10. A double bushing swing arm press-fitting system according to claim 9, characterized in that, The double bushing swing arm press-fitting system includes a fixed seat assembly; the fixed seat assembly includes a fixed seat unit and a pressing unit; The working state also includes the clamping unit restricting the movement of the central axis of the vertical pressure ring.

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