Double-bushing swing arm press-fitting method and system

Abstract

The invention relates to the technical field of swing arms, in particular to a double-bushing swing arm press fitting method and system. Initial positioning of the swing arm is completed; the flat pressing assembly pushes the second lining to abut against the flat pressing ring to be secondarily positioned with the fixed seat unit, and the flat pressing ring drives the movable seat unit to a compression position through the vertical pressing ring; wherein the secondary positioning comprises that one end face of the flat pressing ring in the horizontal direction abuts against the side face of the fixed seat unit for positioning; the flat pressing assembly presses the second bushing to a second mounting position in the hollow cavity of the flat pressing ring; the vertical pressing assembly presses the first bush to a first installation position in the hollow cavity of the vertical pressing ring, and after the flat pressing assembly retracts, one end face of the flat pressing ring in the horizontal direction and the side face of the fixing base unit are arranged at intervals. Therefore, the problem that the double-bushing swing arm is difficult to press and position is solved.

Description

Technical Field

[0001] The present invention relates to the technical field of swing arms, and in particular to a double-bushing swing arm press-fitting method and system. Background Art

[0002] The current swing arm assembly process requires two bushings of different specifications to be installed, each pressed in a different direction. The swing arm has mounting holes that match the two bushings. During assembly, the swing arm is first placed on a positioning table, with the two mounting holes aligned with the corresponding positioning structures on the table. Once the arm is positioned, a dedicated press-fitting device is used to press one bushing vertically into the corresponding mounting hole, and the other bushing horizontally into the other mounting hole, 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 to position the mounting holes and the positioning table, since the two mounting holes correspond to bushings with different press-fitting directions, and the positioning table needs to form 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 are inconvenient, which affects the smoothness of the assembly process. Summary of the Invention

[0004] In order to solve the problem of difficulty in press-fitting and positioning a double-bushing swing arm, the present invention provides a double-bushing swing arm press-fitting method and system.

[0005] In a first aspect, the present invention provides a double-bushing swing arm press-fitting method, the double-bushing swing arm press-fitting 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 circumference of the horizontal pressure ring on the fixed seat unit, positioning the first bushing on the movable seat unit, and positioning the second bushing on the horizontal pressure assembly;

[0007] The flat pressing assembly pushes the second bushing to abut against the flat pressing ring until it is secondary positioned with the fixed seat unit, and the flat pressing ring drives the movable seat unit to a compressed position through the vertical pressure ring; wherein the secondary positioning includes a horizontal end surface of the flat pressing ring abutting against the side surface of the fixed seat unit for positioning;

[0008] The flat pressing assembly presses the second bushing to a second installation position in the hollow cavity of the flat pressing ring;

[0009] The vertical pressure component presses the first bushing to the first installation position in the hollow cavity of the vertical pressure ring, and after the horizontal pressure component retracts, one end surface of the horizontal pressure ring is spaced apart from the side surface of the fixing seat unit.

[0010] In some embodiments, the vertical pressure assembly presses the first bushing to the first installation position in the hollow cavity of the vertical pressure ring, and after the horizontal pressure assembly retracts, a horizontal end surface of the horizontal pressure ring is spaced apart from the side surface of the fixing seat unit, including:

[0011] After the horizontal pressure assembly retracts, the compressive force of the movable seat unit during the secondary positioning process drives the movable seat unit to rebound to a vertical pressure state; wherein, the vertical pressure state includes a horizontal end surface of the horizontal pressure ring being spaced apart from the side surface 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 to a first installation position in the hollow cavity of the pressure ring.

[0013] In some embodiments, the flat pressing assembly pushes the second bushing to abut against the flat pressing ring until it is re-positioned with the fixing seat unit, comprising:

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

[0015] The flat pressing assembly pushes the second bushing to abut against the flat pressing ring until it is positioned with the fixing seat unit for the second time.

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

[0017] The pressing unit contacts the flat pressing ring and applies a force on the flat pressing ring toward the fixing seat unit.

[0018] In some embodiments, the flat pressing assembly pushes the second bushing to abut against the flat pressing ring until it is re-positioned with the fixing seat unit, comprising:

[0019] The flat pressing assembly pushes the second bushing to abut against the flat pressing ring until it is positioned with the fixing seat unit for the second time;

[0020] The clamping unit abuts against the outer peripheral 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 central axis of the flat pressure ring away from the swing arm.

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

[0023] The flat pressure ring drives the movable seat unit to the compressed position through the vertical pressure ring, and at the same time the vertical pressure assembly moves toward 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 set state also includes the vertical pressure ring being located in the projection area of ​​the vertical pressure assembly toward the movable seat unit, and the minimum spacing between the vertical pressure ring and the vertical pressure assembly is a first set distance; wherein, the first set distance is smaller than the second set distance; and the second set distance is the dimension of the overlapping portion between the vertical pressure ring and the first bushing along the center axis of the vertical pressure ring.

[0025] In a second aspect, the present invention provides a double-bushing swing arm press-fitting system, which is applied to any double-bushing swing arm press-fitting method described in the first aspect, and includes:

[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 one end of the first arm body away from the second arm body; the flat pressure ring is spaced apart from the vertical pressure ring; and the central axis of the flat pressure ring is perpendicular to the central axis of the vertical pressure ring.

[0027] A fixing seat unit, used for positioning the flat pressure ring;

[0028] A flat pressing assembly, used for driving the second bushing to move toward the flat pressing ring;

[0029] A movable seat unit, used for positioning the vertical pressure ring;

[0030] A pressure assembly, configured to drive the first bushing to move toward the pressure ring;

[0031] The working state of the double-bushing swing arm pressing system includes the flat pressure ring being set on the fixed seat unit, the vertical pressure ring being set on the movable seat unit, the central axis of the flat pressure ring being set parallel to the set plane, and the central axis of the vertical pressure ring being set perpendicular to the set plane, the flat pressure assembly driving the second bushing to move toward the flat pressure ring, allowing the second bushing to drive the flat pressure ring to move to the secondary positioning, and then allowing the flat pressure assembly to drive the second bushing to move to the second installation position in the hollow cavity of the flat pressure ring, and then the vertical pressure assembly 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 fixing seat assembly; the fixing seat assembly includes a fixing seat unit and a pressing unit;

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

[0034] In order to solve the problem of difficulty in press-fitting and positioning the double-bushing swing arm, the present invention has the following advantages:

[0035] By first completing the initial positioning of the swing arm, the flat pressing assembly then pushes the second bushing to abut the flat pressing ring until it is positioned for the second time with the fixed seat unit, and the flat pressing ring drives the movable seat unit to the compressed position through the vertical pressure ring, and then the flat pressing assembly presses the second bushing to the second installation position in the hollow cavity of the flat pressing ring, and finally the first bushing is pressed to the first installation position in the hollow cavity of the vertical pressure ring through the vertical pressure assembly, and after the flat pressing assembly retracts, one end face of the flat pressing ring in the horizontal direction is spaced apart from the side face of the fixed seat unit, which can realize flexible movement of the movable seat unit and release of the positioning of the flat pressing ring after pressing, thereby avoiding mutual interference between the vertical pressure ring and the flat pressing ring on the swing arm, and finally solving the problem of inconvenience in placing and removing the swing arm. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 A flow chart showing a method for press-fitting a double-bushing swing arm according to an embodiment is shown;

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

[0038] Figure 3 Shown Figure 2 Schematic diagram of a partial double-bushing swing arm press-fit system;

[0039] Figure 4 Shown Figure 3 A top view of a portion of the double-bushing swing arm press-fit system;

[0040] Figure 5 Shown Figure 3 Schematic diagram of the mounting assembly of the double bushing swing arm press-fit system;

[0041] Figure 6 Shown Figure 5 A magnified view of the double-bushing swing arm press-fit system;

[0042] Figure 7 Shown Figure 5 A top view of the mounting assembly of the double bushing swing arm press-fit system;

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

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

[0045] Figure 10 Shown Figure 9 a cross-sectional view of the first bushing;

[0046] Figure 11 Shown Figure 9 Cross-sectional view of the second bushing.

[0047] Reference numerals: base assembly 10; fixed seat assembly 20; fixed seat unit 21; fixed seat body 211; first positioning portion 212; first limiting portion 213; pressing unit 22; first driving portion 221; pressing head 222; support column 23; flat pressing assembly 30; flat pressing unit 31; second driving portion 311; flat pressing head 312; movable support unit 32; movable support body 321; first translation guide rail 322; third driving portion 323; Movable seat assembly 40; movable seat unit 41; movable seat body 411; second positioning portion 412; third positioning portion 413; second translation guide rail 414; rebound unit 42; second limiting portion 421; elastic body 422; third limiting portion 43; vertical pressure assembly 50; fourth driving portion 51; vertical pressure joint 52; swing arm 60; first arm body 61; vertical pressure ring 62; first bushing 63; second arm body 64; horizontal pressure ring 65; second bushing 66. DETAILED DESCRIPTION

[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 implement the present disclosure, rather than to imply any limitation on the scope of the present disclosure.

[0049] As used herein, the term "including" 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 "based, at least in part, on." The terms "one embodiment" and "an embodiment" are to be interpreted as "at least one embodiment." The term "another embodiment" is to be interpreted as "at least one other embodiment." Terms such as "upper," "lower," "left," "right," "front," "back," "top," "bottom," "inner," "outer," "vertical," "horizontal," "transverse," and "longitudinal" indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. These terms are primarily intended to better describe the present application and its embodiments and are not intended to limit the devices, elements, or components indicated to having a specific orientation, or to being constructed and operated in a specific orientation. Furthermore, some of the above terms may be used to indicate other meanings besides orientation or positional relationships. For example, the term "on" may, in certain circumstances, be used to indicate a dependency or connection relationship. Those skilled in the art will understand the specific meanings of these terms in this application based on the specific circumstances. Furthermore, the terms "installed," "disposed," "provided with," "connected," and "connected" are to 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, an indirect connection through an intermediate medium, or an internal connection between two devices, elements, or components. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to the specific circumstances. In addition, the terms "first", "second", etc. are mainly used to distinguish different devices, elements, or components (the specific types and structures may be the same or different), and are not used to indicate or imply the relative importance or quantity of the indicated devices, elements, or components. Unless otherwise specified, "plurality" means two or more.

[0050] Currently, during 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 is provided with mounting holes that match the two bushings respectively. During assembly, the swing arm 60 needs to be placed on the positioning table first, so that the two mounting holes of the swing arm 60 are aligned with the corresponding positioning structures on the positioning table respectively. After the positioning of the swing arm 60 is completed, a dedicated pressing device is used to press one bushing into the corresponding mounting hole in the vertical direction, and the other bushing is press-fitted into the other mounting hole in the horizontal direction, thereby completing the assembly operation 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 to position the mounting holes and the positioning table, since the two mounting holes correspond to bushings with different pressing directions respectively, and the positioning table needs to form positioning supports 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 60 are inconvenient, affecting the smoothness of the assembly process.

[0051] Example 1:

[0052] To solve the above problems, this embodiment provides a press-fitting method for a double-bushing swing arm 60. The double-bushing swing arm 60 press-fitting method in this embodiment involves a double-bushing swing arm 60 press-fitting system including a swing arm 60, a fixed seat unit 21, a horizontal 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 horizontal 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 integrally formed with the first arm body 61. The horizontal pressure ring 65 is connected to the end of the first arm body 61 away from the second arm body 64, and is spaced apart from the vertical pressure ring 62 and perpendicular to the central axis. It can adapt to the horizontal press-fitting of the second bushing 66 and the vertical press-fitting of the first bushing 63. The fixed seat unit 21 positions the horizontal pressure ring 65, and the horizontal pressure assembly 30 drives the second bushing 66 to move toward the horizontal 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, if Figure 1 As shown, the double bushing swing arm 60 press-fitting method includes steps S10 to S40. The double bushing swing arm 60 press-fitting method sequentially performs steps S10, S20, S30, and S40. Steps S10 to S40 are described in detail below:

[0055] Step S10 completes the initial positioning of the swing arm 60. This initial positioning includes positioning the vertical pressure ring 62 on the movable seat unit 41, positioning the lower circumference of the horizontal 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 horizontal pressure assembly 30. While the first bushing 63 is positioned on the movable seat unit 41, it is positioned above the vertical pressure ring 62, with the outer circumferential wall of the first bushing 63 partially overlapping the inner circumferential wall of the vertical pressure ring 62. This ensures the precise initial positioning of the swing arm 60, avoids subsequent assembly failures due to initial position deviations, and ensures the orderly progress of the overall assembly process.

[0056] Since the swing arm 60 needs to be initially positioned, it is necessary to ensure that the distance between the movable seat unit 41 and the fixed seat unit 21 is smaller than the distance between the vertical pressure ring 62 and the flat pressure ring 65, so that the swing arm 60 can be more conveniently initially positioned. Figure 4 The left and right movement shown is convenient for adjusting the distance between the movable seat unit 41 and the fixed seat unit 21 .

[0057] In step S20, in order to facilitate the precise press-fitting of the second bushing 66, the flat pressing assembly 30 pushes the second bushing 66 to abut the flat pressing ring 65 until it is re-positioned with the fixed seat unit 21, and the relative position of the flat pressing ring 65 and the fixed seat unit 21 is further more precise, ensuring that when the second bushing 66 and the flat pressing ring 65 are subsequently press-fitted, the fixed seat unit 21 can support the positions of the flat pressing ring 65 and the second bushing 66, and the flat pressing ring 65 drives the movable seat unit 41 to the compressed position through the vertical pressure ring 62, that is, the vertical pressure ring 62 is driven to the compressed position through the second arm body 64 and the first arm body 61 of the swing arm 60. Figure 4 As shown in the right direction, the vertical pressure ring 62 and the movable seat unit 41 have completed the initial positioning, so the movable seat unit 41 is subjected to the force of the vertical pressure ring 62 to the Figure 4 The secondary positioning includes one end face of the flat pressing ring 65 in the horizontal direction abutting against the side face of the fixing seat unit 21 for positioning.

[0058] In step S30, the press assembly 30 presses the second bushing 66 into the second mounting position within the hollow cavity of the press ring 65, ensuring a secure assembly of the second bushing 66 and the press ring 65 and preventing loosening or displacement of the second bushing 66. After moving to the second mounting position, the contact area between the inner circumferential wall of the press 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 press ring 65.

[0059] In step S40, the pressure assembly 50 presses the first bushing 63 into the first installation position within the hollow cavity of the pressure ring 62, ensuring a secure assembly between the first bushing 63 and the pressure ring 62 and preventing the first bushing 63 from loosening or shifting. After moving to the first installation position, the contact area between the inner circumferential wall of the pressure ring 62 and the outer circumferential 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 pressure ring 65. Furthermore, after the pressure assembly 30 retracts, one horizontal end face of the pressure ring 65 is spaced from the side of the fixed seat unit 21. This releases the positioning constraint between the pressure ring 65 and the fixed seat unit 21, allowing the horizontal end face of the pressure ring 65 to be spaced from the side of the fixed seat unit 21. This facilitates the installation of the first bushing 63 and the pressure ring 62, and the removal of the swing arm 60 after the second bushing 66 and the pressure ring 65 are press-fitted. During press-fitting, the first bushing 63 and the second bushing 66 are press-fitted in separate steps to ensure stability during the press-fitting process. Furthermore, during positioning, separate positioning is used to reduce the accuracy requirements for positioning. When the double-bushing swing arm 60 press-fitting system is in normal operation, the cost is relatively low.

[0060] Furthermore, step S40 includes step S41 and step S42, and the double bushing swing arm 60 press-fitting method sequentially performs step S10, step S20, step S30, step S41, and step S42. Step S41 and step S42 are described in detail below:

[0061] In step S41, after the leveling assembly 30 retracts, the compressive force of the movable seat unit 41 during the secondary positioning process drives the movable seat unit 41 to rebound to a vertical pressure state. This allows the leveling ring 65 to be spaced apart from the side of the fixed seat unit 21, preventing the fixed seat unit 21 from being in contact with the side of the leveling assembly 30 for a long time and causing wear. At the same time, the compressive force of the movable seat unit 41 comes from the elastic body 422, so the rebound can prevent the elastic body 422 from being in compression for a long time, thereby extending the service life of the elastic body 422. The vertical pressure state includes one horizontal end face of the leveling ring 65 being spaced apart from the side of the fixed seat unit 21, and the movable seat unit 41 moving toward the fixed seat unit 21 to a first set position. Preferably, the first set position includes the side of the movable seat unit 41 abutting against the third limit portion 43, thereby ensuring that the vertical pressure assembly 50 coincides with the central axis 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 in the hollow cavity of the vertical pressure ring 62. The third limiting portion 43 is located at one side of the movable seat unit 41 , and can limit the movable seat unit 41 when the movable seat unit 41 moves toward the third limiting portion 43 .

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

[0063] Furthermore, step S20 includes step S21 and step S22, and the double bushing swing arm 60 press-fitting method sequentially performs step S10, step S21, step S22, step S30, and step S40. Step S21 and step S22 are described in detail below:

[0064] Step S21, the double-bushing swing arm 60 press-fitting system includes a clamping unit 22, which moves toward the flat-pressing ring 65 until the minimum distance between the clamping unit 22 and the flat-pressing ring 65 is less than or equal to the set value, so as to avoid the flat-pressing ring 65 jumping toward the clamping assembly when the flat-pressing assembly 30 pushes the second bushing 66, causing the swing arm 60 to tilt, resulting in the risk of being unable to press-fit the second bushing 66 later. Therefore, the clamping unit 22 is used to limit the up and down directions of the flat-pressing ring 65. The clamping unit 22 is located above the flat-pressing ring 65, and the set value is the distance between the clamping unit 22 and the flat-pressing ring 65. Figure 2 The distance in the up and down directions shown.

[0065] In step S22 , the flat pressing assembly 30 pushes the second bushing 66 to abut against the flat pressing ring 65 to perform secondary positioning with the fixing seat unit 21 , thereby ensuring the relative position of the flat pressing ring 65 and the fixing seat unit 21 and guaranteeing accurate positioning of the flat pressing ring 65 .

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

[0067] The clamping unit 22 abuts against the flat pressing ring 65. At this time, the clamping unit 22 is located in the upward projection area of ​​the flat pressing ring 65. The clamping unit 22 and the flat pressing ring 65 abut against each other in the up and down directions, applying a force toward the direction close to the fixing seat unit 21 to the flat pressing ring 65, that is, applying a downward force to the flat pressing ring 65, avoiding the risk of the flat pressing ring 65 moving upward when the flat pressing assembly 30 presses the second bushing 66, thereby further fixing the position of the flat pressing ring 65 and ensuring the stable pressing of the flat pressing ring 65 and the second bushing 66.

[0068] Furthermore, step S22 includes step S221 and step S222, and the double bushing swing arm 60 press-fitting method sequentially performs step S10, step S21, step S221, step S222, step S30, and step S40. Step S221 and step S222 are described in detail below:

[0069] In step S221, the press assembly 30 pushes the second bushing 66 against the press ring 65 until it is re-positioned with the fixing seat unit 21, ensuring the relative position of the press ring 65 and the fixing seat unit 21 is stable, providing a precise positioning basis for the subsequent insertion of the second bushing 66 into the press ring 65. During the movement of the press ring 65, the force applied by the press unit to the press ring 65 is relatively small, thereby reducing the energy consumption of the press unit.

[0070] In step S222, since the flat pressure ring 65 does not need to move at this time and only needs to cooperate with the assembly of the second bushing 66, to avoid the positioning accuracy being damaged by the movement of the flat pressure ring 65, the clamping unit 22 abuts against the outer circumference of the flat pressure ring 65 and applies a force to the flat pressure ring 65. 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 in other positions. In this way, the larger force effectively constrains the flat pressure ring 65 and limits the positional movement of the flat pressure ring 65.

[0071] Furthermore, since the weight of the first arm 61 and the second arm 64 is present on the side of the center axis of the flat pressure ring 65 close to the swing arm 60, and the weight of the side of the center axis of the flat pressure ring 65 away from the swing arm 60 is smaller, when the minimum distance between the clamping unit 22 and the flat pressure ring 65 is less than or equal to the set value, the center axis of the clamping unit 22 is located on the side of the center axis of the flat pressure ring 65 away from the swing arm 60. In this way, the clamping unit 22 forms an effective constraint on the side of the flat pressure ring 65 away from the first arm 61, ensuring that the force on both sides of the flat pressure ring 65 is uniform, and avoiding positional offset caused by unbalanced force on one side of the flat pressure ring 65. At the same time, the stability of the flat pressure ring 65 can be maintained without the clamping unit 22 outputting excessive driving force. Therefore, the driving torque output by the clamping unit 22 reduces the energy consumption of the first driving part 221 while satisfying the position constraint of the flat pressure ring 65.

[0072] Furthermore, when the flat pressure ring 65, via the vertical pressure ring 62, drives the movable seat unit 41 to the compressed position in step S20, the vertical pressure assembly 50 simultaneously moves toward the vertical pressure ring 62 to a set position. This simultaneous movement of the vertical pressure assembly 50 and the movable seat unit 41 reduces the time required for the entire press-fitting process, ultimately improving the efficiency of assembling the first bushing 63 and the vertical pressure ring 62. The set position includes the vertical pressure ring 62 and the vertical pressure assembly 50 being spaced apart.

[0073] Furthermore, the set state also includes the vertical pressure ring 62 being located within the projection area of ​​the vertical pressure assembly 50 toward the movable seat unit 41, ensuring that positional deviation can be avoided when the vertical pressure assembly 50 press-fits the vertical pressure ring 62 and the first bushing 63. The minimum spacing between the vertical pressure ring 62 and the vertical pressure assembly 50 is a first set distance. The first set distance is smaller than the second set distance, and the second set distance 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 press-fitting of the second bushing 66 into the flat pressure ring 65, thereby preventing the vertical pressure ring 62 from shaking due to movement of the swing arm 60. This effectively prevents the first bushing 63 from shifting in position due to shaking, thereby further preventing the first bushing 63 from moving to a position separated from the vertical pressure ring 62, thereby 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, if 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, and the double-bushing swing arm 60 press-fitting system is applied to any double-bushing swing arm 60 press-fitting method in the above-mentioned embodiments. The double-bushing swing arm 60 press-fitting system includes a swing arm 60, a fixed seat unit 21, a horizontal pressing assembly 30, a movable seat unit 41, and a vertical pressing assembly 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 one end of the first arm body 61 away from the second arm body 64. The flat pressure ring 65 is spaced apart from the vertical pressure ring 62. The central axis of the flat pressure ring 65 is perpendicular to the central axis of the vertical pressure ring 62. It can adapt to the horizontal press-fitting of the second bushing 66 and the vertical press-fitting of the first bushing 63, and can be adapted to 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 pressing system includes the flat pressure ring 65 being set on the fixed seat unit 21, the vertical pressure ring 62 being set on the movable seat unit 41, the central axis of the flat pressure ring 65 being set parallel to the set plane, and the central axis of the vertical pressure ring 62 being set perpendicular to the set plane. The flat pressure assembly 30 drives the second bushing 66 to move toward the flat pressure ring 65, allowing the second bushing 66 to drive the flat pressure ring 65 to move to the secondary positioning, and then allowing the flat pressure assembly 30 to drive the second bushing 66 to move to the second installation position in the hollow cavity of the flat pressure ring 65, and then 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 can ensure the orderly progress of the pressing process, avoid mutual interference in the positioning and pressing of the flat pressure ring 65 and the vertical pressure ring 62, and the second bushing 66 accurately enters the corresponding installation positions of the flat pressure ring 65 and the first bushing 63 accurately enters the vertical pressure ring 62. At the same time, the orderly workflow can reduce operational confusion during the assembly process and further improve the accuracy and efficiency of the pressing of the double-bushing swing arm 60.

[0079] Furthermore, if Figure 2 As shown, the press-fit system for the dual-bushing swing arm 60 includes a fixed seat assembly 20. The fixed seat assembly 20 comprises a fixed seat unit 21 and a pressing unit 22. During operation, the pressing unit 22 limits 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 vibration of the swing arm 60 caused by the movement of the vertical pressure ring 62.

[0080] In other embodiments, Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 、 Figure 6 、 Figure 7 As shown, the double bushing swing arm 60 press-fitting system further includes a base assembly 10 and a movable seat assembly 40. The base assembly 10 is used to provide an installation foundation and support for the fixed seat assembly 20, the horizontal pressing assembly 30, the movable seat assembly 40, and the vertical pressing assembly 50.

[0081] The fixing assembly further 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 fixing seat unit 21 includes a fixing seat body 211, a first positioning portion 212, and a first limiting portion 213. The fixing seat body 211 is connected to the first positioning portion 212, which is in turn connected to the first limiting portion 213. The first positioning portion 212 is used to position the flat pressing ring 65, and the first limiting portion 213 is used to limit the flat pressing ring 65.

[0083] The pressing unit 22 includes a first driving portion 221 and a pressing head 222. The first driving portion 221 is used to drive the pressing head 222 to move along the Figure 2 Move up and down.

[0084] The flat pressing assembly 30 includes a flat pressing unit 31 and a movable support unit 32. The flat pressing unit 31 includes a second driving portion 311 and a flat pressing head 312. The second driving portion 311 is used to drive the flat pressing head 312 to move along the flat pressing head 312. Figure 4 Move left and right.

[0085] The movable support unit 32 includes a movable support body 321 , a first translation guide rail 322 , and a third driving portion 323 . The movable support body 321 is used to position the second bushing 66 , and the third driving portion 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 rebound unit 42 and a third limiting portion 43 .

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

[0088] The rebound unit 42 includes a second limiter 421 and an elastic body 422. The movable seat 411 is located between the second limiter 421 and the third limiter. The elastic body 422 is connected to the second limiter 421. The second limiter 421 and the third limiter 43 are used to limit the movement range of the movable seat 411.

[0089] The vertical pressing assembly 50 includes a fourth driving portion 51 and a vertical pressing joint 52. The fourth driving portion 51 is used to drive the vertical pressing joint 52 to move along the vertical pressing joint. Figure 2 Move in the up and down directions.

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

Claims

1. A double-bushing swing arm press-fitting method, characterized in that: The double-bushing swing arm press-fitting method comprises: 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 circumference of the horizontal pressure ring on the fixed seat unit, positioning the first bushing on the movable seat unit, and positioning the second bushing on the horizontal pressure assembly; The flat pressing assembly pushes the second bushing to abut against the flat pressing ring until it is secondary positioned with the fixed seat unit, and the flat pressing ring drives the movable seat unit to a compressed position through the vertical pressure ring; wherein the secondary positioning includes a horizontal end surface of the flat pressing ring abutting against the side surface of the fixed seat unit for positioning; The flat pressing assembly presses the second bushing to a second installation position in the hollow cavity of the flat pressing ring; The vertical pressure component presses the first bushing to the first installation position in the hollow cavity of the vertical pressure ring, and after the horizontal pressure component retracts, one end surface of the horizontal pressure ring is spaced apart from the side surface of the fixing seat unit.

2. A double-bushing swing arm press-fitting method according to claim 1, characterized in that: The vertical pressure assembly presses the first bushing to the first installation position in the hollow cavity of the vertical pressure ring, and after the horizontal pressure assembly retracts, one end surface of the horizontal pressure ring is spaced apart from the side surface of the fixing seat unit, including: After the horizontal pressure assembly retracts, the compressive force of the movable seat unit during the secondary positioning process drives the movable seat unit to rebound to a vertical pressure state; wherein, the vertical pressure state includes a horizontal end surface of the horizontal pressure ring being spaced apart from the side surface 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 to a first installation position in the hollow cavity of the pressure ring.

3. A double-bushing swing arm press-fitting method according to claim 1, characterized in that: The flat pressing assembly pushes the second bushing to abut against the flat pressing ring until it is positioned with the fixing seat unit for the second time, including: The pressing unit moves toward the flat pressure ring until the minimum distance between the pressing unit and the flat pressure ring is less than or equal to a set value; The flat pressing assembly pushes the second bushing to abut against the flat pressing ring until it is positioned with the fixing seat unit for the second time.

4. A double-bushing swing arm press-fitting method according to claim 3, characterized in that: The minimum distance between the pressing unit and the flat pressure ring is less than or equal to the set value, including: The pressing unit contacts the flat pressing ring and applies a force on the flat pressing ring toward the fixing seat unit.

5. A double-bushing swing arm press-fitting method according to claim 3, characterized in that: The flat pressing assembly pushes the second bushing to abut against the flat pressing ring until it is positioned with the fixing seat unit for the second time, including: The flat pressing assembly pushes the second bushing to abut against the flat pressing ring until it is positioned with the fixing seat unit for the second time; The clamping unit abuts against the outer peripheral 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. A double-bushing swing arm press-fitting method according to claim 3, characterized in that: When the minimum distance between the pressing unit and the flat pressure ring is less than or equal to a set value, the central axis of the pressing unit is located on the side of the central axis of the flat pressure ring away from the swing arm.

7. A double-bushing swing arm press-fitting method according to claim 1, characterized in that: The horizontal pressure ring drives the movable seat unit to the compression position through the vertical pressure ring, which includes: The flat pressure ring drives the movable seat unit to the compressed position through the vertical pressure ring, and at the same time the vertical pressure assembly moves toward 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. A double-bushing swing arm press-fitting method according to claim 7, characterized in that: The set state also includes the vertical pressure ring being located within the projection area of ​​the vertical pressure assembly toward the movable seat unit, and the minimum spacing between the vertical pressure ring and the vertical pressure assembly being a first set distance; wherein the first set distance is smaller than the second set distance; and the second set distance is the dimension of the overlapping portion between the vertical pressure ring and the first bushing along the center axis of the vertical 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 a double-bushing swing arm press-fitting method according to any one of 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 one end of the first arm body away from the second arm body; the flat pressure ring is spaced apart from the vertical pressure ring; and the central axis of the flat pressure ring is perpendicular to the central axis of the vertical pressure ring. A fixing seat unit, used for positioning the flat pressure ring; A flat pressing assembly, used for driving the second bushing to move toward the flat pressing ring; A movable seat unit, used for positioning the vertical pressure ring; A pressure assembly, configured to drive the first bushing to move toward the pressure ring; The working state of the double-bushing swing arm pressing system includes the flat pressure ring being set on the fixed seat unit, the vertical pressure ring being set on the movable seat unit, the central axis of the flat pressure ring being set parallel to the set plane, and the central axis of the vertical pressure ring being set perpendicular to the set plane, the flat pressure assembly driving the second bushing to move toward the flat pressure ring, allowing the second bushing to drive the flat pressure ring to move to the secondary positioning, and then allowing the flat pressure assembly to drive the second bushing to move to the second installation position in the hollow cavity of the flat pressure ring, and then the vertical pressure assembly 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 fixing seat assembly; the fixing seat assembly includes a fixing seat unit and a pressing unit; The working state also includes the pressing unit limiting the movement of the central axis of the vertical pressure ring.

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