Device for pressing thin-wall lining on bearing support, thin-wall lining and method

Abstract

The invention discloses a device for press fitting of a thin-wall lining on a bearing support, the thin-wall lining and a method. The device comprises a supporting base. The positioning block is arranged on the supporting base, a lining and a handle are arranged in the positioning block, the lining is axially perpendicular to the handle, and the end of the handle is rotationally connected to the side wall of the positioning block while being in clearance fit with the lining; the mandrel rod is installed in the lining in a pluggable mode, and a handle is installed at the top of the mandrel rod; one end of the reset piece is connected with the bushing, and the other end is connected with a plug screw. In the press-fitting process of the thin-wall bushing, the thin-wall bushing arranged on the outer side of the core rod in a sleeving mode can be precisely guided and positioned in the through hole of the bearing support by means of matched use of the bushing and the core rod, the problem that the thin-wall bushing deviates is avoided, and the problem that the installation position of the thin-wall bushing is not guided due to the fact that a special guiding piece does not exist is solved. And finally, the thin-wall lining is clamped in the through hole of the bearing support, so that the technical defect that the pressed assembly cannot be normally used is overcome.

Description

Technical Field

[0001] The invention belongs to the technical field of aviation equipment assembly, and in particular relates to a device for press-fitting a thin-walled bushing on a bearing support, a thin-walled bushing and a method. Background Art

[0002] During operation, the support mandrel is installed in the main workpiece, and the outer walls of the two ends of the support mandrel are in contact with the inner wall of the thin-walled bushing, while the bearing support drives the support mandrel to swing around the center zero point of the through hole in the middle of the bearing support through the connecting rod mechanism, and then provides the required angle working position for the main workpiece. Since the material of the bearing support itself has poor wear resistance, it is necessary to install two thin-walled bushings radially along the side wall of the bearing support to prevent the support mandrel from causing wear on the inner wall of the bearing support during the swinging process, causing the swinging of the support mandrel to get stuck. Therefore, the two thin-walled bushings are installed in the through hole in the middle of the bearing support in corresponding positions. Since the thin-walled bushing and the support mandrel are both made of wear-resistant materials, the problem of wear on the inner wall of the bearing support is solved in the subsequent swinging operation of the support mandrel.

[0003] However, in the process of pressing the thin-walled bushing, the pressing method currently used is mainly press or direct manual pressing. In the process of pressing the thin-walled bushing, there is no special guide to guide the installation position of the thin-walled bushing. It is easy for the thin-walled bushing to be offset during the pressing process, resulting in deformation and damage of the thin-walled bushing, and finally getting stuck in the through hole of the bearing support, resulting in the failure of the pressed component to be used normally. Summary of the invention

[0004] The object of the present invention is to provide a device, a thin-walled bushing and a method for press-fitting a thin-walled bushing into a bearing support, so as to solve the technical defect in the prior art that there is no dedicated guide member to guide the installation position of the thin-walled bushing, and the pressing position of the thin-walled bushing is easily offset during the pressing process, thereby causing the thin-walled bushing to deform and be damaged, and finally get stuck in the through hole of the bearing support, resulting in the technical defect that the pressed-fitted component cannot be used normally.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions: In a first aspect, a device for press-fitting a thin-walled bushing on a bearing support is provided, comprising: Support base; A positioning block is arranged on the supporting base, wherein a bushing and a handle are arranged in the positioning block, wherein the bushing and the handle are axially perpendicular to each other, and the end of the handle is rotatably connected to the side wall of the positioning block while being in clearance fit with the bushing; A core rod is installed in the bushing by plugging and unplugging, and a handle is installed on the top of the core rod; A reset piece has one end connected to the bushing and the other end connected to a screw plug.

[0006] Furthermore, the support base has an installation area and a movable area, and the installation area is provided with a movable hole; 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 overlapped, and the first mounting hole and the second mounting hole are axially perpendicular; 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 passes through the outside of the bushing and is rotatably connected to the outside of the third mounting hole.

[0007] Furthermore, the handle comprises a clamping end and a connecting end, the clamping end and the connecting end are an integral structure, and the clamping end is a structure with one end open and the other end closed; The bushing is located in the open end of the clamping end and is loosely matched with the open end of the clamping end. The outer side 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. The connection end of the handle passes through the first mounting hole and extends to the outside of the activity area.

[0008] Furthermore, a connection between the handle clamping end and the connecting end has an arc-shaped surface, the arc-shaped surface is matched with an outer wall of the bushing, and the connecting end is installed at an end of the arc-shaped surface.

[0009] Furthermore, the positioning block is an annular structure, and the positioning block is detachably connected to the supporting base.

[0010] Furthermore, a screw is provided on the outer side of the positioning block, and the end of the screw extends into the interior of the positioning block and contacts the outer wall of the core rod.

[0011] Furthermore, a fourth mounting hole is formed at the bottom of the positioning block, and the screw plug is installed in the fourth mounting hole to support the reset member.

[0012] Furthermore, the reset element is a spring.

[0013] In a second aspect, a thin-walled bushing is provided, comprising a bushing body, wherein the bushing body is press-fitted using the device as described above.

[0014] In a third aspect, a method for press-fitting a thin-walled bushing into a bearing support is provided, the method being performed using the device as described above, comprising: Using the handle to drive the bushing to move downward, so that the bushing is located in the lower middle part of the positioning block; Install the bearing support on the positioning block, and release the handle to allow the bushing to move upward and be located in the bearing support; The thin-walled bushing is installed on the core rod, and the core rod is located in the bushing. The core rod is manually pressed so that the core rod drives the thin-walled bushing to be installed in the bearing support.

[0015] Compared with the prior art, the present invention has the following beneficial effects: 1. During the press-fitting process of the thin-walled bushing, the thin-walled bushing mounted on the outside of the core rod can be accurately guided and positioned in the through hole of the bearing support by using the bushing in combination with the core rod, thereby avoiding the problem of the thin-walled bushing being offset and solving the technical defect that there is no dedicated guide to guide the installation position of the thin-walled bushing, which causes the thin-walled bushing to be deformed and damaged, and eventually gets stuck in the through hole of the bearing support, resulting in the inability to use the pressed-fit assembly normally. Secondly, the handle is arranged to be axially perpendicular to the bushing and rotatably connected to the side wall of the positioning block, thereby improving the convenience and flexibility of operation. Finally, the setting of the reset piece and the screw plug makes it easy to reset the bushing to its initial position after the press-fitting is completed, so as to facilitate the next use.

[0016] 2. The ingenious layout of the first mounting hole, the second mounting hole and the third mounting hole on the positioning block makes the installation of the bushing and the handle more flexible and the fit more tightly. In particular, the axial overlap of the first mounting hole and the third mounting hole provides stable support for the rotation connection of the handle while maintaining the compactness of the structure.

[0017] The end of the handle passes through the outside of the bushing and is rotatably connected to the outside of the third mounting hole, 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 mounting hole.

[0018] 3. The clamping end of the handle is rotatably connected to the pin, so that the operator can fine-tune the position of the bushing by rotating the handle during the press-fitting process, thereby improving the accuracy and controllability of the press-fitting, and allowing the operator to more accurately control the press-fitting position and angle of the bushing.

[0019] 4. The matching of the arc surface and the outer wall of the bushing ensures a close fit 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, and improves the reliability of the device.

[0020] 5. The detachable connection facilitates the maintenance and care of the positioning block. During use, if the positioning block is worn or damaged, the operator can easily remove it for repair or replacement without disassembling the entire device, thereby reducing maintenance costs and difficulty.

[0021] 6. The end of the screw contacts the outer wall of the core rod, effectively preventing the core rod from rotating during axial movement.

[0022] 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 member, ensuring that the reset member 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. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments are briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without creative work.

[0024] Figure 1 The overall cross-sectional schematic diagram of the device for press-fitting a thin-walled bushing on a bearing support provided by the present invention; Figure 2 A schematic diagram of the structure of a positioning block in a device for press-fitting a thin-walled bushing on a bearing support provided by the present invention; Figure 3 A side view of a positioning block in a device for press-fitting a thin-walled bushing on a bearing support provided by the present invention; Figure 4 A schematic diagram of a bushing in a device for press-fitting a thin-wall bushing on a bearing support provided by the present invention; Figure 5 A schematic diagram of the handle structure in the device for press-fitting a thin-walled bushing on a bearing support provided by the present invention; Figure 6 A schematic diagram of the structure of the center rod of the device for press-fitting a thin-walled bushing on a bearing support provided by the present invention; Figure 7 A schematic diagram of the assembly of a positioning block in a device for press-fitting a thin-walled bushing on a bearing support provided by the present invention; Figure 8 A side view of the assembly of a positioning block in a device for press-fitting a thin-walled bushing on a bearing support provided by the present invention; Fig. 9 A schematic diagram of the support base structure in the device for press-fitting a thin-walled bushing on a bearing support provided by the present invention; Fig.10 A top view of a support base in a device for press-fitting a thin-walled bushing on a bearing support provided by the present invention; Fig.11 This is a schematic diagram of the first installation of a thin-walled bushing in the prior art; Fig.12 It is a second installation schematic diagram of a thin-walled bushing in the prior art; Fig.13 It is a third installation schematic diagram of a thin-walled bushing in the prior art; Fig.14A flow chart of a method for press-fitting a thin-walled bushing on a bearing support provided by the present invention; Among them: 1. Support base; 2. Positioning block; 201. First mounting hole; 202. Second mounting hole; 203. Third mounting hole; 204. Protrusion; 3. Bushing; 4. Handle; 5. Core rod; 6. Handle; 7. Screw; 8. Pin; 9. Reset piece; 10. Screw plug; 11. Cylindrical pin; 12. Cylindrical head screw; 20. Bearing support; 21. Through hole; 22. Connecting rod mechanism; 23. Support core shaft; 24. Thin-walled bushing; 25. Main working part. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.

[0026] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention claimed for protection, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0027] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0028] In the description of the embodiments of the present invention, it should be noted that if the terms "upper", "lower", "horizontal", "inner", etc. indicate an orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the product of the invention is usually placed when in use, it is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first", "second", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0029] In addition, if the term "horizontal" appears, it does not mean that the component must be absolutely horizontal, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", which does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0030] At work, Fig.11As shown, the support mandrel 23 is installed in the main working part 25, and the outer walls of the two ends of the support mandrel 23 are in contact with the inner wall of the thin-walled bushing 24, and the bearing support 20 drives the support mandrel 23 to swing around the center zero point of the through hole 21 in the middle of the bearing support 20 through the connecting rod mechanism 22, and then provides the main working part 25 with the required angular working position. Since the material of the bearing support 20 itself has poor wear resistance, it is necessary to install two thin-walled bushings 24 radially on the side wall of the bearing support 20 to prevent the support mandrel 23 from sluggishly wearing the inner wall of the bearing support 20 during the swinging process, causing the support mandrel 23 to swing and get stuck. Therefore, the two thin-walled bushings 24 are installed in the through hole 21 in the middle of the bearing support 20 in corresponding positions, as shown in FIG. Fig.12 As shown; since the thin-walled bushing 24 and the support mandrel 23 are made of wear-resistant material, the problem of wear on the inner wall of the bearing support 20 is solved in the subsequent swinging operation of the support mandrel 23.

[0031] However, in the process of press-fitting the thin-walled bushing 24, the press-fitting method currently used is mainly a press machine or manual direct press-fitting. In the process of press-fitting the thin-walled bushing 24, there is no dedicated guide to guide the installation position of the thin-walled bushing 24. It is very easy for the thin-walled bushing 24 to be offset during the press-fitting process, thereby causing the thin-walled bushing 24 to be deformed and damaged, and finally stuck in the through hole 21 of the bearing support 20. Fig.13 As shown, the pressed components cannot be used normally.

[0032] In order to solve the above technical defects, the inventor provides a device, a thin-walled bushing and a method for press-fitting a thin-walled bushing on a bearing support.

[0033] The present invention is further described in detail below by taking the press-fitting of thin-walled bushings in the assembly process of aviation equipment as an example and in conjunction with the accompanying drawings. However, the present invention is not limited to the assembly of aviation equipment, but can be widely applied to the press-fitting of bushings or thin-walled bushings in the assembly process of various equipment.

[0034] like Figure 1-Figure 10 As shown, in the first aspect of an embodiment of the present invention, there is provided a device for pressing a thin-walled bushing into a bearing support, comprising a support base 1, the support base 1 being a T-shaped structure, having a horizontal end and a vertical end, the horizontal end being able to 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, a positioning block 2 is installed at the movable hole of the support base 1, and is fixed by a cylindrical pin 11 and a cylindrical head screw 12.

[0035] The positioning block 2 is detachably connected to the vertical end side wall of the supporting base 1; at the same time, a bushing 3 and a handle 4 are provided in the positioning block 2, wherein the positional relationship between the bushing 3 and the handle 4 is axially vertical. It is worth noting that while the end of the handle 4 is loosely fitted with the bushing 3, it is rotatably connected to the side wall of the positioning block 2, and while the handle 4 rotates, the bushing 3 can be driven to move up and down; the core rod 5 is plugged in and installed in the bushing 3, and is used to install a thin-walled bushing 24, and a handle 6 is installed on the top of the core rod 5; the reset member 9 is located inside the positioning block 2, one end of which is connected to the bottom of the bushing 3, and the other end is connected to the top of the screw plug 10. When the thin-walled bushing 24 is installed in the through hole 21 of the bearing support 20 by using the device, the bushing 3 and the core rod 5 are used in combination to accurately guide and position the thin-walled bushing 24 sleeved on the outside of the core rod 5 in the through hole 21 of the bearing support 20, thereby avoiding the problem of the thin-walled bushing 24 being offset, and solving the technical defect that the thin-walled bushing 24 is deformed and damaged due to the lack of a dedicated guide to guide the installation position of the thin-walled bushing 24, and finally stuck in the through hole 21 of the bearing support 20, resulting in the technical defect that the pressed-in assembly cannot be used normally. Secondly, by setting the handle 4 to be axially perpendicular to the bushing 3 and rotatably connected to the side wall of the positioning block 2, the operator can easily rotate or fine-tune the bushing 3 through the handle 4 during the press-fitting process, thereby improving the convenience and flexibility of the operation. Finally, the setting of the reset member 9 and the screw plug 10 makes it easy to reset the bushing 3 to the initial position after the press-fitting is completed, which is convenient for the next use.

[0036] like Figure 2-Figure 8 As shown, the support base 1 has an installation area and an activity area. The right side of the vertical end of the support base 1 is the installation area, and an activity hole is opened on the installation area. The left side of the vertical end of the support base 1 is the activity area. The first mounting hole 201, the second mounting hole 202 and the third mounting hole 203 are sequentially provided on the positioning block 2, wherein the first mounting hole 201 and the third mounting hole 203 are axially overlapped and the first mounting hole 201 and the second mounting hole 202 are axially perpendicular to each other; 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 passes through the outer side of the bushing 3 and is rotatably connected to the outside of the third mounting hole 203. The ingenious layout 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 matching more closely, especially the axial overlap of the first mounting hole 201 and the third mounting hole 203, which provides a stable support for the rotation connection of the handle 4 while maintaining the compactness of the structure. At the same time, the end of the handle 4 passes through the outside of the bushing 3 and is rotatably connected to the outside of the third mounting hole 203, 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.

[0037] like Figure 5 As shown, the connection between the clamping end and the connecting end of the handle 4 has an arc surface, the arc surface is adapted to 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 adaptation of the arc surface to the outer wall of the bushing 3 ensures the close fit between the handle 4 and the bushing 3 during the rotation process, 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 is gap-matched with the open end of the clamping end. The outer side of the third mounting hole 203 is symmetrically installed with protrusions 204, and a pin 8 is connected between the two protrusions 204. The end of the clamping end is rotatably connected to the pin 8, and the connecting end of the handle 4 passes through the first mounting hole 201 and extends to the outside of the active area.

[0038] like Figure 2-Figure 3 As shown, the positioning block 2 is a ring structure, and the positioning block 2 is detachably connected to the supporting base 1. The detachable connection makes it easy to maintain and service the positioning block 2. During use, if the positioning block 2 is worn or damaged, the operator can easily remove it for repair or replacement without disassembling the entire device, thereby reducing maintenance costs and difficulty.

[0039] like Figure 1 As shown, in order to ensure the reliability of press-fitting, a screw 7 is provided on the outside of the positioning block 2, and the end of the screw 7 extends to the inside of the positioning block 2 and contacts the outer wall of the core rod 5, which effectively prevents the core rod 5 from rotating during axial movement and avoids deviation in the guiding positioning of the thin-walled bushing 24. In the present invention, a fourth mounting hole is provided at the bottom of the positioning block 2, and a screw plug 10 is installed in the fourth mounting hole to support the reset member 9; specifically, the reset member 9 is preferably a spring. By providing the fourth mounting hole at the bottom of the positioning block 2 and installing the screw plug 10, a stable support point is provided for the reset member 9, ensuring that the reset member 9 can remain stable when subjected to pressure or external force, and is not easily offset or deformed, thereby improving the structural stability of the entire device.

[0040] In the second aspect, an embodiment of the present invention provides a thin-walled bushing, including a bushing body, which is press-fitted using the device as described above. By using the above-mentioned device for press-fitting operations, the problem of the thin-walled bushing 24 being offset and damaged during the press-fitting process can be effectively avoided, thereby improving the efficiency and reliability of press-fitting.

[0041] In a third aspect, an embodiment of the present invention provides a method for press-fitting a thin-walled bushing on a bearing support, wherein the method is performed using the device described above, such as Fig.14 As shown, including: S101. Use the handle to move the bushing downward so that the bushing is located in the lower middle part of the positioning block; illustratively, when installing the thin-walled bushing 24 on the bearing support 20, first press the handle 4 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 interior of the positioning block 2.

[0042] S102, install the bearing support on the positioning block, release the handle to allow the bushing to move upward and be located in the bearing support; illustratively, install the bearing support 20 on the positioning block 2, release the handle 4, and the bushing 3 moves upward in the vertical direction under the action of the reset member 9, so that the upper end of the bushing 3 enters the through hole 21 of the bearing support 20 where the thin-walled bushing 24 is to be installed, thereby completing the axial positioning of the bearing support 20.

[0043] S103, install the thin-walled bushing on the mandrel, and make the mandrel be located in the bushing, and manually press the mandrel so that the mandrel drives 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, and the thin-walled bushing 24 is limited by the mandrel 5 and the bushing 3, and a hand press is used to press the upper end surface of the mandrel 5, and the mandrel 5 together with the thin-walled bushing 24 is pressed downward in the vertical direction to complete the pressing operation of the thin-walled bushing 24. During the entire press-fitting process, the inner hole of the thin-walled bushing 24 is guided and supported by the mandrel 5, and the inner hole will not be deformed, which greatly improves the press-fitting quality and efficiency.

[0044] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit its protection scope. Although the present invention has been described in detail with reference to the above embodiments, ordinary technicians in the field should understand that after reading the present invention, those skilled in the art can still make various changes, modifications or equivalent substitutions to the specific implementation methods of the invention, but these changes, modifications or equivalent substitutions are all within the protection scope of the pending claims of the invention.

Claims

1. A device for press-fitting a thin-walled bushing on a bearing support, characterized in that: include: A support base (1); A positioning block (2) is arranged on the support base (1), a bushing (3) and a handle (4) are arranged in the positioning block (2), the bushing (3) and the handle (4) are axially perpendicular to each other, and the end of the handle (4) is rotatably connected to the side wall of the positioning block (2) while being loosely fitted with the bushing (3); A core rod (5) is inserted and removed into the bushing (3), and a handle (6) is installed on the top of the core rod (5); A reset member (9) has one end connected to the bushing (3) and the other end connected to a screw plug (10).

2. The device for press-fitting a thin-walled bushing into a bearing support according to claim 1, characterized in that: The support base (1) comprises an installation area and a movable area, and a movable hole is provided on the installation area; 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 overlapped, 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) passes through the outside of the bushing (3) and is rotatably connected to the outside of the third mounting hole (203).

3. The device for press-fitting a thin-walled bushing on a bearing support according to claim 2, characterized in that: The handle (4) comprises a clamping end and a connecting end, the clamping end and the connecting end are an integral structure, and the clamping end is a structure with one end open and the other end closed; The bushing (3) is located inside the open end of the clamping end and is loosely matched with the open end of the clamping end; protrusions (204) are symmetrically mounted on the outer side of the third mounting hole (203); a pin (8) is connected between the two protrusions (204); and the end of the clamping end is rotatably connected to the pin (8); The connection end of the handle (4) passes through the first mounting hole (201) and extends to the outside of the activity area.

4. The device for press-fitting a thin-walled bushing on a bearing support according to claim 3, characterized in that: The connection between the clamping end and the connecting end of the handle (4) has an arc-shaped surface, the arc-shaped surface is adapted to the outer wall of the bushing (3), and the connecting end is mounted on the end of the arc-shaped surface.

5. The device for press-fitting a thin-walled bushing into a bearing support according to claim 2, characterized in that: The positioning block (2) is an annular structure, and the positioning block (2) is detachably connected to the supporting base (1).

6. The device for press-fitting a thin-walled bushing into a bearing support according to claim 1, characterized in that: A screw (7) is provided on the outer side of the positioning block (2), and an end of the screw (7) extends into the interior of the positioning block (2) and contacts the outer wall of the core rod (5).

7. The device for press-fitting a thin-walled bushing into a bearing support according to claim 1, characterized in that: A fourth mounting hole is provided at 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).

8. The device for press-fitting a thin-walled bushing into a bearing support according to claim 1 or 7, characterized in that: The reset element (9) is a spring.

9. A thin-walled bushing, comprising a bushing body, characterized in that: The bushing body is press-fitted using the device described in any one of claims 1-8.

10. A method for press-fitting a thin-walled bushing into a bearing support, characterized in that: The method is carried out using the device according to any one of claims 1 to 8, comprising: Use the handle to drive the bushing to move downward so that the bushing is located in the lower middle part of the positioning block; Install the bearing support on the positioning block, and release the handle to allow the bushing to move upward and be located in the bearing support; The thin-walled bushing is installed on the core rod, and the core rod is located in the bushing. The core rod is manually pressed so that the core rod drives the thin-walled bushing to be installed in the bearing support.

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