Centering assembly for bushing press fitting

Abstract

The utility model discloses a centering assembly for bushing press fitting, and belongs to the technical field of automobile bushing press fitting, the centering assembly comprises a base, a mounting shaft and a mounting seat, the mounting shaft sequentially penetrates through the base and the mounting seat, a bushing is sleeved on the mounting shaft, a mounting hole of a frame is connected with the mounting seat, the mounting seat is connected with the base through a plurality of elastic pieces, and the elastic pieces are connected with the mounting seat. The multiple elastic pieces are regularly arranged around the periphery of the mounting shaft, and the mounting base is stressed to displace to drive the elastic pieces to deform. The centering adjustment of the bushing is realized by adopting a simpler and more convenient technical scheme, and the structure of the assembly is simpler.

Description

Technical Field

[0001] This application relates to the technical field of automotive bushing press-fitting, and particularly relates to a centering component for bushing press-fitting. Background Art

[0002] The shock-absorbing bushing is a commonly used automotive component and is widely used in the suspension system of automobiles. As an important part of the automotive suspension system, the shock-absorbing bushing can protect other suspension components. It can reduce the wear and vibration of each component in the suspension system and improve the service life of the entire suspension system.

[0003] Currently, bushings are mostly press-fitted, but the structural volume of the components that need to be press-fitted is relatively large, and bushings need to be installed in multiple places. Also, due to certain structural errors in the components to be installed, the positions of the installation holes for each bushing to be installed on their surfaces may also have deviations. Therefore, the bushing press-fitting machine with a fixed assembly position has certain limitations. Our company proposed "a subframe bushing pressing device" in October 2023, application number: CN202311296497.1, which discloses a rotary platform connected to a servo motor and a stamping device arranged on one side of the rotary platform. A pressing and fixing component for fixing the subframe and a floating seat are arranged on the servo rotary platform. The subframe is installed on the servo rotary platform and fixed by the pressing and fixing component, and the installation hole of the subframe is installed on the floating seat. When the floating seat is stressed, it deforms. The servo motor works to drive the rotary platform to rotate and drive the floating seat to move below the stamping device, and the stamping device works to press the bushing into the installation hole of the subframe. By setting the floating seat, it can adapt to the installation holes of the subframe with certain deviations; by setting the rotary platform, the bushing and the subframe are rotated to the press-fitting position to cooperate to achieve the press-fitting process.

[0004] The above patent application discloses the use of a floating seat structure to achieve the adjustment of the press-fitting position. However, the structural volume of the floating seat is relatively large and there are many internal components. This application makes further improvements and optimizes the structural scheme of the centering component. Summary of the Utility Model

[0005] The technical problem to be solved by this application is to provide a centering component for bushing press-fitting, which uses a simpler technical solution to achieve the centering adjustment of the bushing, and the structure of the component in this application is simpler.

[0006] The technical solution adopted by this application is: a centering component for bushing press-fitting, including a base, a mounting shaft, and a mounting seat. The mounting shaft sequentially passes through the base and the mounting seat. The bushing is sleeved on the mounting shaft, and the mounting hole of the vehicle frame is connected to the mounting seat. The mounting seat and the base are connected by a plurality of elastic members, and the plurality of elastic members are regularly arranged around the outer circumference of the mounting shaft. When the mounting seat is stressed and displaced, it drives the elastic members to deform.

[0007] Compared with the prior art, the advantages of the present application are as follows. Different from the prior art which uses X-direction floating plates and Y-direction floating plates that only move within the horizontal plane to achieve the centering of the bushing and the mounting hole, the technical solution of the present application directly connects the mounting seat and the base through multiple elastic members. Since the elastic members themselves can deform under force, when the mounting seat is subjected to the thrust of the vehicle frame mounting hole, the mounting seat can move in any direction, that is, tilt, according to this external force. The present application has better floating performance compared with the prior art and can cope with various offset problems of the mounting holes on the vehicle frame. Moreover, compared with the prior art which realizes the movability in the plane direction through two floating plates, the structural design of the present application is simpler, and the centering of the vehicle frame mounting hole and the bushing is achieved.

[0008] In some embodiments of the present application, the present application further includes multiple load-bearing members, and the load-bearing members connect the mounting seat and the base, and the multiple load-bearing members are regularly arranged around the outer periphery of the mounting shaft.

[0009] In a more preferred solution, the multiple load-bearing members are arranged in an annular shape, and the multiple elastic members are arranged in an annular shape; the load-bearing members and the elastic members are arranged at intervals.

[0010] In some embodiments of the present application, the top of the load-bearing member is connected to the mounting seat, an embedding groove is formed on the top surface of the base, the bottom of the load-bearing member extends into the embedding groove, and there is a distance between the bottom of the load-bearing member and the inner wall surface of the embedding groove.

[0011] In the present application, the position limit of the bottom of the load-bearing column is realized through the embedding groove. However, at the same time, there is a distance between the bottom of the load-bearing member and the inner wall surface of the embedding groove, which enables the load-bearing member to have a certain degree of flexibility and realizes the movement of the mounting seat.

[0012] In some embodiments of the present application, the bottom surface of the load-bearing member is a curved surface convex in the middle, the inner bottom surface of the embedding groove is a plane, and the middle part of the load-bearing member is in contact connection with the inner bottom surface of the embedding groove.

[0013] In the present application, while enabling the mounting seat to be movable, the load-bearing member also needs to bear the weight of the entire centering assembly. Then, the present application further designs that the middle part of the load-bearing member is in contact connection with the inner bottom surface of the embedding groove. Then, during the press-fitting process of the bushing, the force along the axial direction of the load-bearing member can be well supported. The bottom surface of the load-bearing member is designed as a curved surface convex in the middle, so that the load-bearing member can also move in matching with the mounting seat.

[0014] In the present application, the top of the load-bearing member is threadedly connected to the mounting seat.

[0015] In some embodiments of the present application, the elastic member is inclined on the base, the top of the elastic member is inclined towards the side where the mounting shaft is located, and the included angle between the elastic member and the mounting shaft is an acute angle.

[0016] In some embodiments of the present application, a lower installation groove is formed on the top surface of the base, an upper installation groove is formed on the bottom surface of the mounting seat, the bottom of the elastic member is located in the lower installation groove, and the top of the elastic member is located in the upper installation groove.

[0017] In the present application, through the arrangement of the upper installation groove and the lower installation, the elastic member can be stably and reliably installed along a predetermined direction. Even after the elastic member is deformed under force, it can still remain in this position.

[0018] In some embodiments of the present application, the elastic member is a rubber plunger. The elastic member is installed by an upper bolt and a lower bolt. The screw rod of the upper bolt passes through the mounting seat and is connected to the top surface of the elastic member, and the screw rod of the lower bolt passes through the base and is connected to the top surface of the elastic member.

[0019] In the present application, the stable installation of the elastic member is further achieved through the upper bolt and the lower bolt. Preferably, the upper bolt is embedded in the mounting seat, and the lower bolt is embedded in the base.

[0020] In some embodiments of the present application, the base includes an upper base plate and a lower base plate, and the upper base plate and the lower base plate are stacked up and down to form a stepped frustum structure. Adopting the above structure to form the base facilitates the formation of structures such as embedding grooves on the base.

[0021] In some embodiments of the present application, an outer ring is further included. The outer ring is sleeved outside the mounting seat, the outer ring is erected on the base, and there is a spacing between the inner wall surface of the outer ring and the outer peripheral member of the mounting seat.

[0022] In the present application, the design of the outer ring further limits the movable range of the mounting seat, ensuring that the movement of the mounting seat is stable and reliable.

[0023] On the basis of conforming to the common knowledge in the art, the above embodiments can be combined arbitrarily. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The present application will be further described in detail below in conjunction with the drawings and preferred embodiments. However, those skilled in the art will understand that these drawings are only drawn for the purpose of explaining the preferred embodiments and should not be regarded as limiting the scope of the present application. In addition, unless otherwise specified, the drawings only schematically show the composition or structure of the described object and may include exaggerated displays, and the drawings are not necessarily drawn to scale.

[0025] Figure 1 is a top view of the present application;

[0026] Figure 2 is Figure 1 a cross-sectional view taken along the AA section in

[0027] Figure 3 is Figure 1 a sectional view of the BB cross-section;

[0028] Figure 4 is a schematic diagram of the internal structure of the present application.

[0029] Among them, the reference numerals are specifically described as follows: 1, base; 1a, upper base plate; 1b, lower base plate; 2, mounting seat; 3, elastic member; 4, lower mounting groove; 5, upper mounting groove; 6, mounting shaft; 8, upper bolt; 9, lower bolt; 11, load-bearing member; 12, embedding groove; 13, outer ring; Specific embodiments

[0030] The present application will be described in detail below with reference to the accompanying drawings.

[0031] In order to make the purpose, technical solutions and advantages of the present application clearer, the present application will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0032] A centering assembly for bushing press-fitting, as shown in Embodiment 1 Figures 1 to 3 shown: It includes a base 1, a mounting shaft 6 and a mounting seat 2. The mounting shaft 6 sequentially passes through the base 1 and the mounting seat 2. The bushing is sleeved on the mounting shaft 6. The mounting hole of the vehicle frame is connected to the mounting seat 2. The mounting seat 2 and the base 1 are connected by a plurality of elastic members 3. The plurality of elastic members 3 are regularly arranged around the outer circumference of the mounting shaft 6. When the mounting seat 2 is stressed and displaced, it drives the elastic members 3 to deform.

[0033] Different from the prior art in which an X-direction floating plate and a Y-direction floating plate that only move within the horizontal plane are used to achieve the centering of the bushing and the mounting hole, the technical solution of the present application directly connects a plurality of elastic members 3 between the mounting seat 2 and the base 1. The elastic members 3 themselves can be deformed by force. Therefore, when the mounting seat 2 receives the thrust of the mounting hole of the vehicle frame, the mounting seat 2 can move in any direction, that is, tilt, according to this external force. The present application has better floating performance compared with the prior art and can cope with various offset problems of the mounting holes on the vehicle frame. Moreover, compared with the prior art in which the movement in the plane direction is achieved by two floating plates, the structural design of the present application is simpler, and the centering of the mounting hole of the vehicle frame and the bushing is realized.

[0034] Embodiment 2, as Figures 1 to 3As shown, the present application further includes a plurality of load-bearing members 11. The load-bearing members 11 connect the mounting base 2 and the base 1, and the plurality of load-bearing members 11 are regularly arranged around the outer periphery of the mounting shaft 6. In a more preferred embodiment, the plurality of load-bearing members 11 are arranged in an annular shape, and the plurality of elastic members 3 are arranged in an annular shape; the load-bearing members 11 and the elastic members 3 are arranged at intervals.

[0035] The top of the load-bearing member 11 is connected to the mounting base 2. An embedding groove 12 is formed on the top surface of the base 1. The bottom of the load-bearing member 11 extends into the embedding groove 12, and there is a gap between the bottom of the load-bearing member 11 and the inner wall surface of the embedding groove 12. In the present application, the position limit of the bottom of the load-bearing column is realized through the embedding groove 12. However, there is a gap between the bottom of the load-bearing member 11 and the inner wall surface of the embedding groove 12, which gives the load-bearing member 11 a certain degree of flexibility and realizes the movement of the mounting base 2.

[0036] The bottom surface of the load-bearing member 11 is a curved surface convex in the middle, and the inner bottom surface of the embedding groove 12 is a plane. The middle part of the load-bearing member 11 is in contact connection with the inner bottom surface of the embedding groove 12.

[0037] In the present application, while enabling the mounting base 2 to be movable, the load-bearing member 11 also needs to bear the weight of the entire centering component. Therefore, the present application further designs that the middle part of the load-bearing member 11 is in contact connection with the inner bottom surface of the embedding groove 12. Then, during the press-fitting process of the bushing, the force along the axial direction of the load-bearing member 11 can be well supported. The bottom surface of the load-bearing member 11 is designed as a curved surface convex in the middle, so that the load-bearing member 11 can also move in matching with the mounting base 2.

[0038] In the present application, the top of the load-bearing member 11 is threadedly connected to the mounting base 2.

[0039] Other contents of the second embodiment are the same as those of the first embodiment.

[0040] Embodiment Three, as Figures 1 to 4 As shown, the elastic member 3 is inclined on the base 1, the top of the elastic member 3 inclines towards the side where the mounting shaft 6 is located, and the included angle between the elastic member 3 and the mounting shaft 6 is an acute angle.

[0041] A lower mounting groove 4 is formed on the top surface of the base 1, and an upper mounting groove 5 is formed on the bottom surface of the mounting base 2. The bottom of the elastic member 3 is located in the lower mounting groove 4, and the top of the elastic member 3 is located in the upper mounting groove 5.

[0042] In the present application, through the settings of the upper mounting groove 5 and the lower mounting groove, the elastic member 3 can be stably and reliably installed along a predetermined direction. Even after the elastic member 3 is deformed under force, it can still remain in that position.

[0043] The elastic member 3 is a rubber plunger. The elastic member 3 is installed by an upper bolt 8 and a lower bolt 9. The screw rod of the upper bolt 8 passes through the mounting seat 2 and is connected to the top surface of the elastic member 3. The screw rod of the lower bolt 9 passes through the base 1 and is connected to the top surface of the elastic member 3.

[0044] In this application, the stable installation of the elastic member 3 is further achieved by the upper bolt 8 and the lower bolt 9. Preferably, the upper bolt 8 is embedded in the mounting seat 2, and the lower bolt 9 is embedded in the base 1.

[0045] The base 1 includes an upper base plate 1a and a lower base plate 1b. The upper base plate 1a and the lower base plate 1b are stacked up and down to form a stepped frustum structure. With the above structure, it is convenient to form structures such as the embedding groove 12 on the base 1.

[0046] This application further includes an outer ring 13. The outer ring 13 is sleeved outside the mounting seat 2 and is erected on the base 1. There is a gap between the inner wall surface of the outer ring 13 and the outer peripheral member of the mounting seat 2. In this application, the design of the outer ring 13 further limits the movable range of the mounting seat 2 to ensure the stable and reliable movement of the mounting seat 2.

[0047] The other contents of Embodiment 3 are the same as those of Embodiment 1 or Embodiment 2.

[0048] The above has introduced this application in detail. Specific examples are used in this article to elaborate on the principle and implementation manner of this application. The description of the above embodiments is only used to help understand this application and its core idea. It should be noted that for those of ordinary skill in the art in this technical field, without departing from the principle of this application, several improvements and modifications can be made to this application, and these improvements and modifications also fall within the protection scope of the claims of this application.

Claims

1. A bushing press-fit centering assembly, characterized in that: The invention comprises a base (1), a mounting shaft (6) and a mounting seat (2), wherein the mounting shaft (6) passes through the base (1) and the mounting seat (2) in sequence, a bushing is sleeved on the mounting shaft (6), a mounting hole of a frame is connected to the mounting seat (2), the mounting seat (2) and the base (1) are connected via a plurality of elastic members (3), the plurality of elastic members (3) are regularly arranged around the periphery of the mounting shaft (6), and when the mounting seat (2) is subjected to force and displaced, the elastic members (3) are deformed.

2. A bushing press-fit centering assembly according to claim 1, characterized in that: It also includes a plurality of load-bearing members (11), wherein the load-bearing members (11) connect the mounting seat (2) and the base (1), and the plurality of load-bearing members (11) are regularly arranged around the periphery of the mounting shaft (6).

3. A bushing press-fit centering assembly according to claim 2, characterized in that: The plurality of load-bearing members (11) are arranged in a circular ring, and the plurality of elastic members (3) are arranged in a circular ring; the load-bearing members (11) and the elastic members (3) are arranged at intervals.

4. A bushing press-fit centering assembly according to claim 2, characterized in that: The top of the load-bearing member (11) is connected to the mounting seat (2), the top surface of the base (1) is provided with an embedding groove (12), the bottom of the load-bearing member (11) extends into the embedding groove (12), and there is a distance between the bottom of the load-bearing member (11) and the inner wall of the embedding groove (12).

5. A bushing press-fit centering assembly according to claim 2, characterized in that: The bottom surface of the load-bearing member (11) is a curved surface with a convex middle portion, the inner bottom surface of the embedded groove (12) is a flat surface, and the middle portion of the load-bearing member (11) is in contact with and connected to the inner bottom surface of the embedded groove (12).

6. A bushing press-fit centering assembly according to claim 1, characterized in that: The elastic member (3) is arranged obliquely on the base (1), the top of the elastic member (3) is inclined towards the side where the mounting shaft (6) is located, and the angle between the elastic member (3) and the mounting shaft (6) is an acute angle.

7. A bushing press-fit centering assembly according to claim 1, characterized in that: The top surface of the base (1) is provided with a lower mounting groove (4), the bottom surface of the mounting seat (2) is provided with an upper mounting groove (5), the bottom of the elastic member (3) is located in the lower mounting groove (4), and the top of the elastic member (3) is located in the upper mounting groove (5).

8. A bushing press-fit centering assembly according to claim 1, characterized in that: The elastic member (3) is a rubber plunger. The elastic member (3) is installed via an upper bolt (8) and a lower bolt (9). The screw of the upper bolt (8) passes through the mounting seat (2) and is connected to the top surface of the elastic member (3). The screw of the lower bolt (9) passes through the base (1) and is connected to the top surface of the elastic member (3).

9. A bushing press-fit centering assembly according to claim 1, characterized in that: The base (1) comprises an upper base plate (1a) and a lower base plate (1b), and the upper base plate (1a) and the lower base plate (1b) are superimposed on each other to form a stepped frustum structure.

10. A bushing press-fit centering assembly according to claim 1 or 9, characterized in that: It also includes an outer ring (13), the outer ring (13) is sleeved outside the mounting seat (2), the outer ring (13) is mounted on the base (1), and there is a distance between the inner wall surface of the outer ring (13) and the peripheral part of the mounting seat (2).

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