A device for press fitting a thin-walled bushing to a bearing support, a thin-walled bushing and a method

Abstract

The application discloses a device for bearing support press-fitting thin-wall bushing, a thin-wall bushing and a method, the device comprising a supporting base; a positioning block arranged on the supporting base, the positioning block being provided with a bushing and a handle, the bushing being axially perpendicular to the handle, the end of the handle being gap-fitted with the bushing and being rotationally connected to the side wall of the positioning block; a mandrel being plug-in installed in the bushing, the top of the mandrel being provided with a handle; a reset member, one end of the reset member being connected with the bushing, the other end of the reset member being connected with a screw plug. In the process of press-fitting the thin-wall bushing, the thin-wall bushing sleeved outside the mandrel can be accurately guided and positioned in the through hole of the bearing support by the cooperation of the bushing and the mandrel, the problem of the thin-wall bushing deviation is avoided, the technical defects that the installation position of the thin-wall bushing is guided without a special guide member, the thin-wall bushing is deformed and damaged, and finally, the thin-wall bushing is stuck in the through hole of the bearing support, and the press-fitted assembly cannot be normally used are solved.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of aviation equipment assembly, and particularly relates to a device for press-fitting a thin-wall bushing into a bearing support, a thin-wall bushing and a method. BACKGROUND

[0002] In work, the supporting mandrel is installed in the main workpiece, the outer wall of the two ends of the supporting mandrel is in contact with the inner wall of the thin-wall bushing, and the bearing support drives the supporting mandrel to swing around the center point of the through hole in the middle of the bearing support, and then provides the required angular work position for the main workpiece. Since the bearing support itself has poor wear resistance, two thin-wall bushings are needed to be installed in the radial direction on the side wall of the bearing support to avoid the inner wall of the bearing support being worn and causing the supporting mandrel to be stuck during the swinging process. Therefore, the two thin-wall bushings are installed in the through hole in the middle of the bearing support in a corresponding position. Since the thin-wall bushing and the supporting mandrel are made of wear-resistant materials, the problem of wear of the inner wall of the bearing support is solved in the subsequent swinging operation of the supporting mandrel.

[0003] However, in the process of press-fitting the thin-wall bushing, the current press-fitting method mainly uses a press machine or manual direct press-fitting. In the process of press-fitting the thin-wall bushing, since there is no special guide for guiding the installation position of the thin-wall bushing, the press-fitting position of the thin-wall bushing is prone to deviation, which causes the thin-wall bushing to be deformed and damaged, and finally stuck in the through hole of the bearing support, so that the assembled component cannot be normally used after press-fitting. SUMMARY

[0004] The purpose of the present application is to provide a device for press-fitting a thin-wall bushing into a bearing support, a thin-wall bushing and a method, which solves the technical defects in the prior art that the installation position of the thin-wall bushing is not guided by a special guide, the press-fitting position of the thin-wall bushing is prone to deviation in the process of press-fitting, which causes the thin-wall bushing to be deformed and damaged, and finally stuck in the through hole of the bearing support, so that the assembled component cannot be normally used after press-fitting.

[0005] In order to achieve the above-mentioned purpose, the following technical solutions are adopted in the present application:

[0006] In a first aspect, a device for press-fitting a thin-wall bushing into a bearing support is provided, comprising:

[0007] a supporting base;

[0008] a positioning block arranged on the supporting base, the positioning block being provided with a bushing and a handle, the bushing being axially perpendicular to the handle, and the end of the handle being gap-fitted with the bushing while being rotationally connected to the side wall of the positioning block;

[0009] A heart stick is installed in the bushing in a plug-in manner, and a handle is installed on the top of the heart stick;

[0010] A reset member is connected to one end of the bushing, and a screw plug is connected to the other end of the reset member.

[0011] Further, the support base has a mounting area and a movable area, and a movable hole is formed in the mounting area;

[0012] The positioning block is provided with a first mounting hole, a second mounting hole and a third mounting hole, the first mounting hole and the third mounting hole are axially coincident, and the first mounting hole and the second mounting hole are axially perpendicular;

[0013] The first mounting hole is located in the movable hole, the bushing is installed in the second mounting hole, and the end of the handle is rotatably connected to the outside of the third mounting hole through the outside of the bushing.

[0014] Further, the handle includes a clamping end and a connecting end, the clamping end and the connecting end are in an integral structure, and the clamping end is in a structure with one open end and one closed end;

[0015] The bushing is located in the open end of the clamping end and is in a gap fit with the open end of the clamping end, the outside of the third mounting hole is symmetrically provided with protrusions, a pin is connected between the two protrusions, and the end of the clamping end is rotatably connected to the pin.

[0016] The connecting end of the handle extends to the outside of the movable area from the first mounting hole.

[0017] Further, the handle clamping end and the connecting end have an arc surface at the connection, the arc surface is adapted to the outer wall of the bushing, and the connecting end is installed at the end of the arc surface.

[0018] Further, the positioning block is in an annular structure, and the positioning block is detachably connected to the support base.

[0019] Further, the outside of the positioning block is provided with a screw, and the end of the screw extends to the inside of the positioning block and contacts the outer wall of the heart stick.

[0020] Further, a fourth mounting hole is formed in the bottom of the positioning block, and the screw plug is installed in the fourth mounting hole to support the reset member.

[0021] Further, the reset member is a spring.

[0022] In the second aspect, a thin-wall bushing is provided, which includes a bushing body, and the bushing body is press-fitted by using the device as described above.

[0023] In a third aspect, a method for press-fitting a thin-wall bushing to a bearing seat is provided, which is performed by using the device as described above, comprising:

[0024] The handle is used to drive the bushing downwardly so that the bushing is located in the lower part of the positioning block;

[0025] The bearing seat is installed on the positioning block, and the handle is loosened to drive the bushing upwardly and into the bearing seat;

[0026] The thin-wall bushing is installed on the mandrel, and the mandrel is located in the bushing, and the mandrel is manually pressed to drive the thin-wall bushing to be installed in the bearing seat.

[0027] Compared with the prior art, the present application has the following beneficial effects:

[0028] 1. In the process of press-fitting the thin-wall bushing, the thin-wall bushing sleeved on the outside of the mandrel is accurately guided and positioned in the through hole of the bearing seat by using the cooperation of the bushing and the mandrel, which avoids the problem of deviation of the thin-wall bushing, solves the technical defects that the installation position of the thin-wall bushing is guided by no special guide, the thin-wall bushing is deformed and damaged, and finally stuck in the through hole of the bearing seat, resulting in that the assembled component after press-fitting cannot be normally used. Secondly, the axial vertical rotation connection between the handle and the bushing on the side wall of the positioning block improves the convenience and flexibility of operation. Finally, the reset member and the plug make it convenient to reset the bushing to the initial position after press-fitting, which is convenient for next use.

[0029] 2. The ingenious layout of the first installation hole, the second installation hole and the third installation hole on the positioning block makes the installation of the bushing and the handle more flexible and the cooperation more compact, especially the axial coincidence of the first installation hole and the third installation hole provides stable support for the rotation connection of the handle, while maintaining the compactness of the structure.

[0030] The end of the handle is rotationally connected to the outside of the third installation hole through the outside of the bushing, which not only makes the rotation of the handle more stable, but also enhances the stability of the handle during the press-fitting process through the support of the third installation hole.

[0031] 3. The rotation connection of the clamping end of the handle and the pin allows the operator to fine-tune the position of the bushing by rotating the handle during the press-fitting process, which improves the accuracy and controllability of the press-fitting, allowing the operator to more accurately control the press-fitting position and angle of the bushing.

[0032] 4. The adaptation of the arc surface to the outer wall of the bushing ensures the close cooperation between the handle and the bushing during rotation, which not only reduces the shaking and deviation of the handle during rotation, but also enhances the connection stability between the handle and the bushing, improving the reliability of the device.

[0033] 5. The detachable connection facilitates the maintenance and upkeep of the positioning block. If the positioning block is worn or damaged during use, the operator can easily remove it for repair or replacement without disassembling the entire device, thereby reducing maintenance costs and difficulty.

[0034] 6. The end of the screw contacts the outer wall of the mandrel, effectively preventing the mandrel from rotating during axial movement.

[0035] 7. By opening a fourth mounting hole at the bottom of the positioning block and installing a screw plug, a stable support point is provided for the reset component, ensuring that the reset component can remain stable when subjected to pressure or external force, and is not prone to displacement or deformation, thereby improving the structural stability of the entire device. Attached Figure Description

[0036] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0037] Figure 1 A schematic cross-sectional view of the device for press-fitting thin-walled bushings for bearing supports provided by the present invention;

[0038] Figure 2 A schematic diagram of the positioning block structure in the device for press-fitting thin-walled bushings for bearing supports provided by the present invention;

[0039] Figure 3 A side view of the positioning block in the device for pressing thin-walled bushings for bearing supports provided by the present invention;

[0040] Figure 4 A schematic diagram of the bushing in the device for press-fitting thin-walled bushings for bearing supports provided by the present invention;

[0041] Figure 5 A schematic diagram of the handle structure in the device for pressing thin-walled bushings for bearing supports provided by the present invention;

[0042] Figure 6 A schematic diagram of the central bar structure of the device for press-fitting thin-walled bushings for bearing supports provided by the present invention;

[0043] Figure 7 This is a schematic diagram of the positioning block assembly in the device for pressing thin-walled bushings for bearing supports provided by the present invention.

[0044] Figure 8Positioning block assembly side view of device for bearing support press-fit thin-wall bushing provided by the present application;

[0045] Figure 9 Support base structure schematic diagram of device for bearing support press-fit thin-wall bushing provided by the present application;

[0046] Figure 10 Support base top view of device for bearing support press-fit thin-wall bushing provided by the present application;

[0047] Figure 11 First installation schematic diagram of thin-wall bushing in prior art;

[0048] Figure 12 Second installation schematic diagram of thin-wall bushing in prior art;

[0049] Figure 13 Third installation schematic diagram of thin-wall bushing in prior art;

[0050] Figure 14 Method flow chart of device for bearing support press-fit thin-wall bushing provided by the present application;

[0051] Wherein: 1, support base; 2, positioning block; 201, first installation hole; 202, second installation hole; 203, third installation hole; 204, protrusion; 3, bushing; 4, handle; 5, mandrel; 6, handlebar; 7, screw; 8, pin; 9, reset member; 10, screw plug; 11, cylindrical pin; 12, cylindrical head screw; 20, bearing support; 21, through hole; 22, connecting rod mechanism; 23, support mandrel; 24, thin-wall bushing; 25, main working member. DETAILED DESCRIPTION

[0052] In order to make the purpose, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are some embodiments of the present application, but not all the embodiments. The components of the embodiments of the present application described and shown in the drawings can be arranged and designed in various different configurations.

[0053] Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the claimed present application, but only represents selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0054] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0055] In the description of the embodiments of the present invention, it should be noted that if terms such as "upper," "lower," "horizontal," or "inner" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of the invention is in use, they are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention. Furthermore, terms such as "first" and "second" are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0056] Furthermore, the use of the term "horizontal" does not imply that the component must be absolutely horizontal, but rather that it can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0057] In the workplace, such as Figure 11 As shown, the support spindle 23 is installed in the main working part 25. The outer walls at both ends of the support spindle 23 contact the inner walls of the thin-walled bushings 24. The bearing support 20, through the linkage mechanism 22, drives the support spindle 23 to swing around the center zero point of the through hole 21 in the middle of the bearing support 20, thus providing the main working part 25 with the required angular working position. Since the bearing support 20 itself has poor wear resistance, two thin-walled bushings 24 need to be installed radially on the side wall of the bearing support 20 to prevent the support spindle 23 from becoming stuck during the swing and causing wear on the inner wall of the bearing support 20, which would result in the support spindle 23 becoming stuck. Therefore, the two thin-walled bushings 24 are installed in corresponding positions in the through hole 21 in the middle of the bearing support 20, as shown. Figure 12 As shown; since both the thin-walled bushing 24 and the support spindle 23 are made of wear-resistant materials, the problem of wear on the inner wall of the bearing support 20 is solved in the subsequent swinging operation of the support spindle 23.

[0058] However, in the press-fitting process of the thin-walled bushing 24, the current press-fitting methods mainly involve direct press-fitting using a press or by hand. During the press-fitting process, because there is no dedicated guide to position the thin-walled bushing 24, its press-fitting position is easily misaligned, leading to deformation and damage, and ultimately causing it to become stuck in the through hole 21 of the bearing support 20. Figure 13 As shown, this causes the pressed components to malfunction.

[0059] To address the aforementioned technical deficiencies, the inventors have provided an apparatus, a thin-walled bushing, and a method for press-fitting thin-walled bushings onto bearing supports.

[0060] The following describes the invention in further detail with reference to the accompanying drawings, taking the pressing of thin-walled bushings in the assembly process of aviation equipment as an example. However, the invention is not limited to aviation equipment assembly, but can be widely applied to the pressing of bushings or thin-walled bushings in the assembly process of various equipment.

[0061] like Figures 1-10 As shown, in a first aspect of the present invention, an apparatus for press-fitting thin-walled bushings for bearing supports is provided, including a support base 1. The support base 1 has a T-shaped structure with a horizontal end and a vertical end. The horizontal end can be placed on the ground or a workbench. A movable hole is opened on the side wall of the vertical end of the support base 1, and a positioning block 2 is installed at the movable hole of the support base 1 and fixed by a cylindrical pin 11 and a cylindrical head screw 12.

[0062] The positioning block 2 is detachably connected to the vertical end sidewall of the support base 1. The positioning block 2 contains a bushing 3 and a handle 4, with the bushing 3 and handle 4 positioned axially perpendicular. Notably, the end of the handle 4 is clearance-fitted with the bushing 3 and rotatably connected to the sidewall of the positioning block 2. As the handle 4 rotates, it can drive the bushing 3 to move up and down. A core rod 5 is inserted into the bushing 3 for installing the thin-walled bushing 24, and a handle 6 is installed on the top of the core rod 5. A reset piece 9 is located inside the positioning block 2, with one end connected to the bottom of the bushing 3 and the other end connected to the top of the screw plug 10. When using this device to install the thin-walled bushing 24 into the through hole 21 of the bearing support 20, the cooperation between the bushing 3 and the mandrel 5 allows the thin-walled bushing 24, fitted outside the mandrel 5, to be precisely guided and positioned within the through hole 21 of the bearing support 20. This avoids the problem of the thin-walled bushing 24 shifting and solves the technical defect that caused the thin-walled bushing 24 to deform and become stuck in the through hole 21 of the bearing support 20 due to the lack of a dedicated guide to guide its installation position, resulting in the assembly being unusable after press-fitting. Secondly, by setting the handle 4 to be axially perpendicular and rotatably connected to the side wall of the positioning block 2, the operator can easily rotate or fine-tune the bushing 3 using the handle 4 during the press-fitting process, thereby improving the convenience and flexibility of operation. Finally, the reset piece 9 and the screw plug 10 allow the bushing 3 to be easily reset to its initial position after press-fitting, facilitating future use.

[0063] like Figures 2-8 As shown, the support base 1 has an installation area and an active area. The right side of the vertical end of the support base 1 is the installation area, and an active hole is provided in the installation area. The left side of the vertical end of the support base 1 is the active area.

[0064] The first mounting hole 201, the second mounting hole 202 and the third mounting hole 203 are sequentially arranged on the positioning block 2, wherein the first mounting hole 201 and the third mounting hole 203 are axially coincident, and the first mounting hole 201 and the second mounting hole 202 are axially perpendicular. The first mounting hole 201 is located in the movable hole, the bushing 3 is installed in the second mounting hole 202, and the end of the handle 4 is rotatably connected to the outside of the third mounting hole 203 through the outside of the bushing 3. The clever arrangement of the first mounting hole 201, the second mounting hole 202 and the third mounting hole 203 on the positioning block 2 makes the installation of the bushing 3 and the handle 4 more flexible and the cooperation more compact. In particular, the axial coincidence of the first mounting hole 201 and the third mounting hole 203 provides stable support for the rotational connection of the handle 4, while maintaining the compactness of the structure. At the same time, the end of the handle 4 is rotatably connected to the outside of the third mounting hole 203 through the outside of the bushing 3, which not only makes the rotation of the handle 4 more stable, but also enhances the stability of the handle 4 during the press-fitting process through the support of the third mounting hole 203.

[0065] As shown in Figure 5 , the connection between the clamping end and the connecting end of the handle 4 has an arc surface, which is matched with the outer wall of the bushing 3, and the connecting end is installed at the end of the arc surface. During the press-fitting process, the matching of the arc surface and the outer wall of the bushing 3 ensures the close cooperation between the handle 4 and the bushing 3 during rotation, which not only reduces the shaking and deviation of the handle 4 during rotation, but also enhances the connection stability between the handle 4 and the bushing 3, and improves the reliability of the device. The bushing 3 is located in the open end of the clamping end and cooperates with the open end of the clamping end in a gap, the outside of the third mounting hole 203 is symmetrically provided with a protrusion 204, a pin 8 is connected between the two protrusions 204, the end of the clamping end is rotatably connected with the pin 8, and the connecting end of the handle 4 extends to the outside of the movable area from the first mounting hole 201.

[0066] As shown in Figures 2-3 , the positioning block 2 is of a ring structure and is detachably connected with the support base 1. Through the detachable connection fixing mode, it is convenient to maintain and maintain the positioning block 2. In the use process, if the positioning block 2 is worn or damaged, the operator can easily disassemble it for repair or replacement without disassembling the entire device, thereby reducing the maintenance cost and difficulty.

[0067] As shown in Figure 1As shown, in order to ensure the reliability of the press fitting, a screw 7 is arranged outside the positioning block 2, the end of the screw 7 extends to the inside of the positioning block 2 and is in contact with the outer wall of the mandrel 5, effectively preventing the rotational movement of the mandrel 5 when moving in the axial direction, avoiding the deviation of the guiding and positioning of the thin-walled bushing 24. In the present application, a fourth mounting hole is formed in the bottom of the positioning block 2, and a screw plug 10 is mounted in the fourth mounting hole for supporting the return element 9; specifically, the return element 9 is preferably a spring. By opening the fourth mounting hole in the bottom of the positioning block 2 and installing the screw plug 10, a stable support point is provided for the return element 9, ensuring that the return element 9 can remain stable when subjected to pressure or external force, and is not prone to deviation or deformation, thereby improving the structural stability of the entire device.

[0068] In a second aspect, the embodiments of the present application provide a thin-walled bushing, which comprises a bushing body, and the bushing body is press-fitted by using the device as described above. By using the device for press fitting operation, the problem of deviation of the thin-walled bushing 24 during press fitting can be effectively avoided, thereby improving the efficiency and reliability of the press fitting.

[0069] In a third aspect, the embodiments of the present application provide a method for press fitting a thin-walled bushing on a bearing support, which is performed by using the device as described above, as shown in the following: Figure 14 As shown, the method comprises:

[0070] S101, the handle is used to drive the bushing to move downward, so that the bushing is located in the lower part of the positioning block; for example, when the bearing support 20 is installed with the thin-walled bushing 24, the handle 4 is first pressed downward, and the handle 4 drives the bushing 3 to move downward in the vertical direction, so that the upper end of the bushing 3 sinks into the inside of the positioning block 2.

[0071] S102, the bearing support is installed on the positioning block, and the handle is loosened to make the bushing move upward and be located in the bearing support; for example, the bearing support 20 is installed on the positioning block 2, the handle 4 is loosened, and the bushing 3 moves upward in the vertical direction under the action of the return element 9, so that the upper end of the bushing 3 enters the through hole 21 of the bearing support 20 for installing the thin-walled bushing 24, and the axial positioning of the bearing support 20 is completed.

[0072] S103, the thin-walled bushing is installed on the mandrel, and the mandrel is located in the bushing, and the mandrel is manually pressed to drive the thin-walled bushing to be installed in the bearing support. For example, then, the thin-walled bushing 24 is sleeved on the mandrel 5, the thin-walled bushing 24 is limited by the mandrel 5 and the bushing 3, the hand press is pressed on the upper end surface of the mandrel 5, and the mandrel 5 and the thin-walled bushing 24 are pressed downward in the vertical direction, and the press-in operation of the thin-walled bushing 24 is completed. During the entire press fitting process, the inner hole of the thin-walled bushing 24 is guided and supported by the mandrel 5, and will not cause deformation of the inner hole, thereby greatly improving the press fitting quality and efficiency.

[0073] It should be pointed out finally that the above embodiments are only used for illustrating the technical solutions of the present application but not for limiting the protection scope thereof, and although the present application has been described in detail with reference to the above embodiments, it should be understood by those skilled in the art that after reading the present application, the skilled in the art can make various changes, modifications or equivalent replacements to the specific embodiments of the present application, but these changes, modifications or equivalent replacements are all within the protection scope of the claims of the present application to be filed.

Claims

1. An apparatus for press fitting a thin-walled bushing to a bearing support, characterized by, The utility model provides a kind of device for the installation of bearing, comprising: Support base (1); Positioning block (2) is arranged on the support base (1), the bushing (3) and handle (4) are arranged in the positioning block (2), the bushing (3) is perpendicular to the handle (4) in axial direction, the end of the handle (4) is connected to the side wall of positioning block (2) in rotation while being gap matched with the bushing (3); Heart stick (5) is installed in the bushing (3) in plug-in, the top of the heart stick (5) is equipped with handlebar (6); Reset member (9) is connected with the bushing (3) at one end, and the other end is connected with screw plug (10); The support base (1) has a mounting area and a movable area, and the mounting area is provided with a movable hole; The positioning block (2) is provided with a first mounting hole (201), a second mounting hole (202) and a third mounting hole (203), the first mounting hole (201) and the third mounting hole (203) are axially coincident, and the first mounting hole (201) is axially perpendicular to the second mounting hole (202); The first mounting hole (201) is located in the movable hole, the bushing (3) is installed in the second mounting hole (202), and the end of the handle (4) is rotatably connected to the outside of the third mounting hole (203) through the outside of the bushing (3); The handle (4) includes a clamping end and a connecting end, the clamping end and the connecting end are an integral structure, and the clamping end has an open end and a closed end structure; The bushing (3) is located in the open end of the clamping end and is gap matched with the open end of the clamping end, the outside of the third mounting hole (203) is symmetrically provided with a protrusion (204), the two protrusions (204) are connected by a pin (8), and the end of the clamping end is rotatably connected with the pin (8); The connecting end of the handle (4) passes through the first mounting hole (201) and extends to the outside of the movable area.

2. The apparatus for press fitting thin-wall bushings into bearing stand according to claim 1, characterized in that, The connecting portion of the handle (4) has an arc surface, the arc surface is matched with the outer wall of the bushing (3), and the connecting end is installed at the end of the arc surface.

3. The apparatus for press fitting thin-wall bushings into bearing stand according to claim 1, characterized in that, The positioning block (2) is an annular structure, and the positioning block (2) is detachably connected with the support base (1).

4. The apparatus for press fitting thin-wall bushings into bearing stand according to claim 1, characterized in that, The outer side of the positioning block (2) is provided with a screw (7), and the end of the screw (7) extends to the inside of the positioning block (2) and contacts with the outer wall of the heart stick (5).

5. The apparatus for press fitting thin-wall bushings into bearing stand according to claim 1, characterized in that, A fourth mounting hole is formed in the bottom of the positioning block (2), and the screw plug (10) is installed in the fourth mounting hole to support the reset member (9).

6. The apparatus for press fitting thin-wall bushings into bearing stand according to claim 1 or 5, characterized in that, The reset member (9) is a spring.

7. A method for press fitting a thin-walled bushing to a bearing support, characterized by, The method is carried out by using the device of any one of claims 1-6, comprising: Drive the bushing downward with the handle, so that the bushing is located in the lower part of the positioning block; Install the bearing support on the positioning block, loosen the handle to make the bushing move upward and be located in the bearing support; Install the thin-walled bushing on the heart stick, and make the heart stick located in the bushing, manually press the heart stick to make the heart stick drive the thin-walled bushing to be installed in the bearing support.

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