Bushing press-fitting mechanism

Abstract

The invention provides a bushing press-fitting mechanism, which is used for press-fitting a bushing into a bushing mounting hole, and comprises a base, a press-fitting mechanism and a press-fitting mechanism, the press-fitting shaft is movably arranged on the base in the axis direction of the press-fitting shaft; the driving part is arranged on the base, and the driving part is in driving connection with the press-fitting shaft so that the press-fitting shaft can move; the press-fitting part is arranged on the press-fitting shaft, the press-fitting part is provided with a supporting section and a press-fitting section which are connected with each other in the axis direction of the press-fitting shaft, the supporting section is used for being arranged in the lining in a penetrating mode, the outline of the outer circumferential face of the supporting section is matched with the outline of the inner circumferential face of the lining, and in the direction from the supporting section to the press-fitting section, the projection of the supporting section is located in the press-fitting section; the end, close to the supporting section, of the press-fitting section is used for being in abutting fit with the end of the bush. According to the scheme, the bush press-fitting process is conveniently and rapidly achieved, the operation convenience and press-fitting efficiency of the bush press-fitting process are improved, and the problems that in the prior art, a worker manually installs a bush, the installation speed is low, and the labor intensity is large are solved.

Description

Technical Field

[0001] The invention relates to the technical field of bushing press-fitting, and in particular to a bushing press-fitting mechanism. Background Art

[0002] Bushings are a common engineering part in mechanical engineering. Bushings are usually designed in a cylindrical shape. Bushings are usually set between two relatively rotating parts. One of the parts is provided with a bushing mounting hole, and the bushing is inserted into the bushing mounting hole. The other part is inserted into the bushing. The setting of the bushing can reduce the direct contact between the two parts, improve mechanical efficiency and extend the life of the parts by reducing friction and wear.

[0003] When installing the bushing, the bushing is usually installed into the bushing installation hole manually by a worker. However, the installation speed is slow and the labor intensity is high when the bushing is installed manually by a worker. Summary of the invention

[0004] The invention provides a bushing press-fitting mechanism to solve the problem in the prior art that the bushing is manually installed by workers, the installation speed is slow, and the labor intensity is high.

[0005] The present invention provides a bushing press-fitting mechanism, which is used to press-fit the bushing into the bushing mounting hole, and the bushing press-fitting mechanism comprises: a base; a press-fitting shaft, which is movably arranged on the base along the axial direction of the press-fitting shaft; a driving member, which is arranged on the base and is drivingly connected to the press-fitting shaft to move the press-fitting shaft; a press-fitting portion, which is arranged on the press-fitting shaft, and the press-fitting portion has a supporting section and a pressing section which are connected to each other along the axial direction of the press-fitting shaft, the supporting section is used to be inserted into the bushing, the contour of the outer circumferential surface of the supporting section is matched with the contour of the inner circumferential surface of the bushing, and the projection of the supporting section is located in the pressing section along the direction from the supporting section to the pressing section, and the end of the pressing section close to the supporting section is used to abut and cooperate with the end of the bushing.

[0006] Furthermore, the press-fitting portion is detachably connected to the press-fitting shaft.

[0007] Furthermore, the press-fitting part is sleeved on the press-fitting shaft, and the bushing press-fitting mechanism also includes: a limiting part, which is arranged on the press-fitting shaft, and the limiting part cooperates with the press-fitting part to limit the movement of the press-fitting part along the axial direction of the press-fitting shaft.

[0008] Furthermore, a mounting groove is arranged on the side wall of the press-fitting part, and the mounting groove penetrates the press-fitting part along the axial direction of the press-fitting shaft, and the press-fitting part is sleeved on the press-fitting shaft through the mounting groove.

[0009] Furthermore, the outer diameter of the press-fitting section is greater than the outer diameter of the supporting section, and the end surface of one end of the press-fitting section connected to the supporting section is perpendicular to the axial direction of the press-fitting portion.

[0010] Further, the limiting portion is located at one end of the press-fitting section away from the supporting section, and the limiting portion is used to abut and cooperate with the one end of the press-fitting section away from the supporting section.

[0011] Furthermore, a first clamping structure is provided on the press-fitting shaft, and a second clamping structure is provided on the limiting portion, and the first clamping structure is clamped with the second clamping structure.

[0012] Furthermore, a plurality of first clamping structures are provided on the press-fitting shaft, and the plurality of first clamping structures are distributed at intervals along the axial direction of the press-fitting shaft, and the second clamping structure on the limiting portion can be selectively clamped with any one of the first clamping structures.

[0013] Furthermore, a plurality of the limiting portions and the press-fitting portions are respectively provided, and the limiting portions and the press-fitting portions are alternately distributed along the axial direction of the press-fitting shaft.

[0014] Furthermore, the bushing press-fitting mechanism also includes: a positioner, which is sleeved on the press-fitting shaft, one end of the positioner is arranged on the driving member, and the other end of the positioner includes an inner cylinder section and an outer cylinder section which are sequentially sleeved from the inside to the outside, the inner cylinder section and the outer cylinder section are both coaxial with the press-fitting shaft, and the outer cylinder section is arranged so that one end of the inner cylinder section away from the driving member protrudes outward, the inner cylinder section is used to be inserted into the bushing mounting hole, and the outer cylinder section is used to be connected to the component where the bushing mounting hole is located.

[0015] By applying the technical solution of the present invention, the pressing shaft is driven to move horizontally along the axial direction by a driving member, thereby driving the pressing part on the pressing shaft to move horizontally, so that the supporting section of the pressing part is passed through the bushing, and the pressing section abuts against the end of the bushing to press the bushing into the bushing mounting hole. This solution realizes a convenient and fast pressing process for the bushing, and there is no need to manually press the bushing into the bushing mounting hole, which saves manpower and improves the operating convenience and pressing efficiency of the bushing pressing process.

[0016] It is understandable that when the device of this solution is applied, according to the specific conditions of the bushing installation hole, in some application scenarios, the staff may choose to first sleeve the bushing on the support section, and insert the press-fitting shaft, the press-fitting part, and the bushing sleeved on the support section into the bushing installation hole, so that the bushing is aligned with the bushing installation hole, and the driving member is started. The driving member drives the press-fitting shaft to drive the press-fitting part and the corresponding bushing to move until the bushing is pressed into the bushing installation hole. After the bushing is installed in place, the end of the press-fitting section connected to the support section abuts against the bushing, and the press-fitting part can no longer press the bushing. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The drawings constituting a part of the present application are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0018] Figure 1A schematic structural diagram of a bushing press-fitting mechanism provided by the present invention from a first viewing angle is shown;

[0019] Figure 2 A structural schematic diagram of a bushing press-fitting mechanism provided by the present invention from a second viewing angle is shown;

[0020] Figure 3 A schematic cross-sectional structure diagram of a bushing press-fitting mechanism provided by the present invention is shown;

[0021] Figure 4 The schematic diagram of the structure of the press-fitting part provided by the present invention is shown;

[0022] Figure 5 The figure shows a schematic diagram of the structure of the positioner provided by the present invention.

[0023] The above drawings include the following reference numerals:

[0024] 10. Base;

[0025] 20. Press-fit shaft;

[0026] 201, a first clamping structure;

[0027] 30. Driving parts;

[0028] 40. Pressing department;

[0029] 41. Support section; 42. Press-fit section; 43. Guide section; 401. Mounting groove;

[0030] 50. Limiting part;

[0031] 501, second clamping structure;

[0032] 60. Locator;

[0033] 61. Inner cylinder section; 62. Outer cylinder section. DETAILED DESCRIPTION

[0034] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is by no means intended to limit the present invention and its application or use. All other embodiments obtained by ordinary technicians in this field without creative work based on the embodiments of the present invention are within the scope of protection of the present invention.

[0035] like Figure 1 , Figure 2 and Figure 4As shown, the present invention provides a bushing press-fitting mechanism, which is used to press-fit the bushing into the bushing mounting hole. The bushing press-fitting mechanism includes a base 10, a press-fitting shaft 20, a driving member 30 and a press-fitting portion 40. The press-fitting shaft 20 is movably arranged on the base 10 along the axial direction; the driving member 30 is arranged on the base 10, and the driving member 30 is connected to the press-fitting shaft 20 to move the press-fitting shaft 20; the press-fitting portion 40 is arranged on the press-fitting shaft 20, and the press-fitting portion 40 has a supporting section 41 and a pressing section 42 which are connected to each other along the axial direction of the press-fitting shaft 20, the supporting section 41 is used to be inserted into the bushing, the contour of the outer circumferential surface of the supporting section 41 is adapted to the contour of the inner circumferential surface of the bushing, and the projection of the supporting section 41 is located in the pressing section 42 along the direction from the supporting section 41 to the pressing section 42, and the end of the pressing section 42 close to the supporting section 41 is used to abut and cooperate with the end of the bushing.

[0036] By applying the technical solution of the present invention, the pressing shaft 20 is driven to move horizontally along the axial direction by the driving member 30, and the pressing part 40 on the pressing shaft 20 is driven to move horizontally, so that the supporting section 41 of the pressing part 40 is inserted into the bushing, and the pressing section 42 abuts against the end of the bushing to press the bushing into the bushing mounting hole. This solution realizes a convenient and fast pressing process for the bushing, and there is no need to manually press the bushing into the bushing mounting hole, which saves manpower and improves the operating convenience and pressing efficiency of the bushing pressing process.

[0037] It is understandable that when the device of this solution is applied, according to the specific conditions of the bushing installation hole, in some application scenarios, the staff may choose to first sleeve the bushing on the support section 41, and insert the press-fitting shaft 20, the press-fitting part 40 and the bushing sleeved on the support section 41 into the bushing installation hole, so that the bushing is aligned with the bushing installation hole, and the driving member 30 is started. The driving member 30 drives the press-fitting shaft 20 to drive the press-fitting part 40 and the corresponding bushing to move until the bushing is press-fitted into the bushing installation hole. After the bushing is installed in place, the end of the press-fitting section 42 connected to the support section 41 abuts against the bushing, and the press-fitting part 40 can no longer press-fit the bushing.

[0038] In the embodiment of the present solution, the press-fitting portion 40 further includes a guide section 43, which is located at one end of the support section 41 away from the press-fitting section 42, and is a truncated cone structure, and the diameter of the guide section 43 gradually decreases along the direction from the support section 41 to the guide section 43, and the diameter of one end of the guide section 43 close to the support section 41 is the same as the diameter of the support section 41. During the press-fitting process of the bushing, the guide section 43 can enable the bushing to be smoothly sleeved on the support section 41, reducing the friction resistance when the bushing is sleeved on the support section 41.

[0039] In some other application scenarios of the present scheme, when the bushing is press-fitted, the staff can pre-place the bushing at the end of the bushing installation opening, but do not press-fit it, and then pass the press-fitting shaft 20 through the bushing and the bushing installation opening; thereafter, start the driving member 30, which can drive the press-fitting shaft 20 to move along the axial direction, and drive the press-fitting part 40 to move linearly close to the bushing and the bushing installation hole. As the press-fitting shaft 20 moves, the guide section 43 of the press-fitting part 40 first contacts the bushing, and then Under the guiding action of the guide section 43, as the press-fitting part 40 moves, the support section 41 is gradually inserted into the bushing. As the press-fitting part 40 continues to move, the end face of the press-fitting section 42 close to the support section 41 gradually abuts against the end face of the bushing. The press-fitting part 40 continues to move, and the press-fitting section 42 gradually presses the bushing into the bushing mounting hole. When the press-fitting section 42 completely presses the bushing into place, the driving member 30 drives the press-fitting shaft 20 to move in the opposite direction, driving the press-fitting part 40 to move in the opposite direction and out of the bushing mounting hole.

[0040] In the embodiment of the present solution, the contour of the outer peripheral surface of the support section 41 of the press-fitting portion 40 is adapted to the contour of the inner peripheral surface of the bushing, so that the bushing can have good coaxiality with the press-fitting shaft 20 during the press-fitting process, thereby improving the position accuracy of the bushing press-fitting process. In addition, the end surface of the press-fitting section 42 connected to the support section 41 abuts against the end surface of the bushing to press-fit the bushing, so that the press-fitting force can be evenly transmitted to the bushing, thereby improving the stability of the bushing press-fitting process.

[0041] Furthermore, the press-fitting part 40 is detachably connected to the press-fitting shaft 20. With such a configuration, when the press-fitting part 40 needs to be replaced or maintained due to wear or damage, only the press-fitting part 40 needs to be removed from the press-fitting shaft 20, without the need to disassemble the entire bushing press-fitting mechanism, thereby reducing maintenance costs and time and improving the convenience of operation.

[0042] In an embodiment of the present scheme, the press-fitting portion 40 is sleeved on the press-fitting shaft 20, and the bushing press-fitting mechanism also includes a limiting portion 50, which is arranged on the press-fitting shaft 20, and the limiting portion 50 cooperates with the press-fitting portion 40 to limit the movement of the press-fitting portion 40 along the axial direction of the press-fitting shaft 20.

[0043] Specifically, during the bushing press-fitting process, when the driving member 30 drives the press-fitting shaft 20 to move, it can drive the limiting portion 50 on the press-fitting shaft 20 to move, and the limiting portion 50 cooperates with the press-fitting portion 40 to limit the movement, so that the press-fitting portion 40 can move synchronously with the press-fitting shaft 20 without relative movement with the press-fitting shaft 20, thereby improving the reliability and pressing accuracy of the bushing press-fitting process.

[0044] In the embodiment of this scheme, a mounting groove 401 is provided on the side wall of the press-fitting part 40 , and the mounting groove 401 is provided through the press-fitting part 40 along the axial direction of the press-fitting shaft 20 , and the press-fitting part 40 is sleeved on the press-fitting shaft 20 through the mounting groove 401 .

[0045] Specifically, the contour of the bottom of the mounting groove 401 is adapted to the contour of the circumferential surface of the press-fitting shaft 20, and the width of the groove of the mounting groove matches the outer diameter of the press-fitting shaft 20. The mounting groove 401 enables the press-fitting part 40 to be easily installed and disassembled. The installation of the press-fitting part 40 can be completed by directly inserting the press-fitting part 40 onto the press-fitting shaft 20 through the mounting groove 401, so that the press-fitting part 40 can be quickly and directly installed and disassembled at any position of the press-fitting shaft 20, thereby improving the convenience of operation.

[0046] Furthermore, the outer diameter of the press-fitting section 42 is greater than the outer diameter of the supporting section 41, and the end surface of one end of the press-fitting section 42 connected to the supporting section 41 is perpendicular to the axial direction of the press-fitting portion 40. In the embodiment of the present scheme, the outer diameter of the press-fitting section 42 is greater than the outer diameter of the supporting section 41, that is, the outer diameter of the press-fitting section 42 is greater than the inner diameter of the bushing, so that the end surface of one end of the press-fitting section 42 connected to the supporting section 41 can stably abut against the bushing, and the bushing is pressed into the mounting hole.

[0047] Furthermore, the limiting portion 50 is located at one end of the press-fitting segment 42 away from the supporting segment 41 , and the limiting portion 50 is used to abut and cooperate with the one end of the press-fitting segment 42 away from the supporting segment 41 .

[0048] Specifically, the limiting portion 50 abuts against one end of the press-fitting section 42 away from the supporting section 41, so that during the movement of the press-fitting shaft 20, the limiting portion 50 can stably drive the press-fitting section 40 to move synchronously. At the same time, the limiting portion 50 can limit the press-fitting section 40 from moving relative to the press-fitting shaft 20 in a direction away from the bushing and the bushing mounting hole, thereby improving the stability of the bushing press-fitting mechanism.

[0049] like Figure 1 and Figure 5 As shown, further, a first clamping structure 201 is provided on the press-fitting shaft 20 , and a second clamping structure 501 is provided on the limiting portion 50 , and the first clamping structure 201 is clamped with the second clamping structure 501 .

[0050] Specifically, the limiting portion 50 is installed on the press-fitting shaft 20 through the first clamping structure 201 and the second clamping structure 501, so that the limiting portion 50 can be accurately and quickly fixedly connected to the press-fitting shaft 20. The clamping connection method makes the installation and disassembly of the limiting portion 50 and the press-fitting shaft 20 more convenient, and can more accurately locate the installation position of the limiting portion 50, thereby improving the installation efficiency of the limiting portion 50.

[0051] Furthermore, the snap-fit ​​connection method can ensure that the connection between the limiting portion 50 and the press-fitting shaft 20 is stable and reliable, so that the limiting portion 50 will not move axially relative to the press-fitting shaft 20, so that the press-fitting force can be evenly and stably transmitted from the press-fitting shaft 20 to the limiting portion 50.

[0052] Furthermore, a plurality of first clamping structures 201 are provided on the press-fitting shaft 20 , and the plurality of first clamping structures 201 are spaced apart along the axial direction of the press-fitting shaft 20 . The second clamping structure 501 on the limiting portion 50 can be selectively clamped with any one of the first clamping structures 201 .

[0053] In the present solution, multiple first clamping structures 201 make it possible to adjust the installation positions of the press-fitting part 40 and the limiting part 50 on the press-fitting shaft 20 according to the positions of the bushing and the bushing mounting hole, so that the press-fitting part 40 and the limiting part 50 are as close to the bushing and the bushing mounting hole as possible. After the press-fitting shaft 20 starts to move, the press-fitting part 40 can contact the bushing more quickly and complete the press-fitting of the bushing, thereby reducing the time of the bushing press-fitting process, improving the bushing press-fitting efficiency, and enhancing the flexibility of the bushing press-fitting mechanism.

[0054] In the embodiment of the present solution, the first clamping structure 201 is a circular groove opened along the circumferential direction of the press-fitting shaft 20, and the outer diameter of the circular groove is smaller than the outer diameter of the press-fitting shaft 20. The second clamping structure is a clamping groove, which is arranged along the axial direction of the limiting portion 50 and penetrates the limiting portion 50, and the contour of the groove bottom of the clamping groove is adapted to the contour of the circular groove, and the width of the notch of the clamping groove is adapted to the diameter of the circular groove.

[0055] Further, a plurality of the limiting portions 50 and the press-fitting portions 40 are respectively provided, and the limiting portions 50 and the press-fitting portions 40 are alternately distributed along the axial direction of the press-fitting shaft 20 .

[0056] In the embodiment of the present scheme, the plurality of limiting parts 50 and the press-fitting parts 40 enable the simultaneous press-fitting of multiple bushings at different positions through one press-fitting shaft 20, thereby improving the press-fitting efficiency of the multiple bushings. When the multiple bushings are press-fitted simultaneously, the respective limiting parts 50 and the press-fitting parts 40 are installed to the positions of the corresponding bushings on the press-fitting shaft 20 according to the positions of the bushings and the bushing mounting holes, and then the driving member 30 is started to drive the press-fitting shaft 20 to move, and the press-fitting shaft 20 simultaneously drives the respective limiting parts 50 and the press-fitting parts 40 to move, and the respective limiting parts 50 and the press-fitting parts 40 gradually press-fit the respective bushings into the corresponding bushing mounting holes.

[0057] like Figure 3 As shown, further, the bushing press-fitting mechanism also includes a locator 60, which is sleeved on the press-fitting shaft 20, one end of the locator 60 is set on the driving member 30, and the other end of the locator 60 includes an inner cylinder section 61 and an outer cylinder section 62 which are sequentially sleeved from the inside to the outside, the inner cylinder section 61 and the outer cylinder section 62 are both coaxial with the press-fitting shaft 20, and one end of the inner cylinder section 61 away from the driving member 30 protrudes outward from the outer cylinder section 62, the inner cylinder section 61 is used to be inserted into the bushing mounting hole, and the outer cylinder section 62 is used to be connected to the component where the bushing mounting hole is located.

[0058] Specifically, the locator 60 is fixedly connected to the driving member 30, so that the locator 60 forms a stable connection with the base 10. When a plurality of bushing mounting holes distributed in a straight line are provided on the component, the inner cylinder section 61 of the locator 60 can be inserted into a bushing mounting hole located at the end, so that the locator 60 is coaxial with the bushing mounting hole. The outer cylinder section 62 of the locator 60 is connected to the component where the bushing mounting hole is located, and a stable pulling force can be applied to the component where the bushing mounting hole is located during the press-fitting process of the bushing, thereby reducing vibration, displacement and other phenomena of the component where the bushing mounting hole is located during the press-fitting process of the bushing, so that the bushing can be stably pressed into the bushing mounting hole, thereby improving the working stability and reliability of the bushing pressing mechanism.

[0059] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0060] Unless otherwise specifically stated, the relative arrangement, numerical expressions and numerical values ​​of the parts and steps set forth in these embodiments do not limit the scope of the present invention. Meanwhile, it should be understood that, for ease of description, the sizes of the various parts shown in the accompanying drawings are not drawn according to actual proportional relationships. The technology, methods and equipment known to those of ordinary skill in the relevant art may not be discussed in detail, but in appropriate cases, the technology, methods and equipment should be considered as a part of the specification. In all examples shown and discussed here, any specific value should be interpreted as being only exemplary, rather than as a limitation. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters represent similar items in the following drawings, and therefore, once a certain item is defined in an accompanying drawing, it does not need to be further discussed in subsequent drawings.

[0061] In the description of the present invention, it is necessary to understand that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings. They are only for the convenience of describing the present invention and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the devices or elements referred to must have a specific direction or be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the scope of protection of the present invention. The directional words "inside and outside" refer to the inside and outside relative to the contours of each component itself.

[0062] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0063] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only to facilitate the distinction between corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of the present invention.

[0064] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A bushing press-fitting mechanism, characterized in that: The bushing press-fitting mechanism is used to press-fit the bushing into the bushing mounting hole, and the bushing press-fitting mechanism includes: Base (10); A press-fitting shaft (20) is movably arranged on the base (10) along the axial direction of the press-fitting shaft (20); A driving member (30) is arranged on the base (10), and the driving member (30) is drivingly connected to the press-fitting shaft (20) so as to move the press-fitting shaft (20); A press-fitting portion (40) is arranged on the press-fitting shaft (20), and the press-fitting portion (40) has a support section (41) and a press-fitting section (42) which are connected to each other along the axial direction of the press-fitting shaft (20), the support section (41) is used to be inserted into the bushing, the contour of the outer peripheral surface of the support section (41) is adapted to the contour of the inner peripheral surface of the bushing, and along the direction from the support section (41) to the press-fitting section (42), the projection of the support section (41) is located in the press-fitting section (42), and the end of the press-fitting section (42) close to the support section (41) is used to abut and cooperate with the end of the bushing.

2. The bushing press-fitting mechanism according to claim 1, characterized in that: The press-fitting portion (40) is detachably connected to the press-fitting shaft (20).

3. The bushing press-fitting mechanism according to claim 2, characterized in that: The press-fitting portion (40) is sleeved on the press-fitting shaft (20), and the bushing press-fitting mechanism further comprises: A limiting portion (50) is arranged on the press-fitting shaft (20), and the limiting portion (50) cooperates with the press-fitting portion (40) to limit the movement of the press-fitting portion (40) along the axial direction of the press-fitting shaft (20).

4. The bushing press-fitting mechanism according to claim 3, characterized in that: A mounting groove (401) is provided on the side wall of the press-fitting portion (40), and the mounting groove (401) is provided through the press-fitting portion (40) along the axial direction of the press-fitting shaft (20). The press-fitting portion (40) is sleeved on the press-fitting shaft (20) through the mounting groove (401).

5. The bushing press-fitting mechanism according to claim 3, characterized in that: The outer diameter of the press-fitting section (42) is greater than the outer diameter of the supporting section (41), and the end surface of one end of the press-fitting section (42) connected to the supporting section (41) is perpendicular to the axial direction of the press-fitting portion (40).

6. The bushing press-fitting mechanism according to claim 5, characterized in that: The limiting portion (50) is located at one end of the press-fitting section (42) away from the supporting section (41), and the limiting portion (50) is used to abut and cooperate with one end of the press-fitting section (42) away from the supporting section (41).

7. The bushing press-fitting mechanism according to claim 3, characterized in that: The press-fitting shaft (20) is provided with a first clamping structure (201), the limiting portion (50) is provided with a second clamping structure (501), and the first clamping structure (201) is clamped with the second clamping structure (501).

8. The bushing press-fitting mechanism according to claim 7, characterized in that: The press-fitting shaft (20) is provided with a plurality of the first clamping structures (201), and the plurality of the first clamping structures (201) are distributed at intervals along the axial direction of the press-fitting shaft (20), and the second clamping structure (501) on the limiting portion (50) can be selectively clamped with any one of the first clamping structures (201).

9. The bushing press-fitting mechanism according to claim 8, characterized in that: A plurality of the limiting portions (50) and the press-fitting portions (40) are respectively provided, and the limiting portions (50) and the press-fitting portions (40) are alternately distributed along the axial direction of the press-fitting shaft (20).

10. The bushing press-fitting mechanism according to claim 1, characterized in that: The bushing press-fitting mechanism also includes: A positioner (60) is sleeved on the press-fitting shaft (20), one end of the positioner (60) is arranged on the driving member (30), and the other end of the positioner (60) includes an inner cylinder section (61) and an outer cylinder section (62) which are sleeved in sequence from the inside to the outside, the inner cylinder section (61) and the outer cylinder section (62) are both coaxial with the press-fitting shaft (20), one end of the inner cylinder section (61) away from the driving member (30) protrudes outward from the outer cylinder section (62), the inner cylinder section (61) is used to be inserted into the bushing mounting hole, and the outer cylinder section (62) is used to be connected to the component where the bushing mounting hole is located.

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