Inner supporting assembly and mounting mechanism

Abstract

The utility model discloses an inner supporting assembly and a mounting mechanism, and belongs to the technical field of assembling and machining of automobile parts, the inner supporting assembly comprises a mounting seat and a connecting shaft, one end of the connecting shaft is connected with a power assembly, the other end of the connecting shaft penetrates out of the central axis of the mounting seat and is sleeved with an expansion pipe, and the other end of the connecting shaft is provided with a supporting head; the expanding head is of a circular-truncated-cone-shaped structure with the outer diameter larger than that of the connecting shaft. The expansion pipe is located between the expanding head and the bottom face of the installation base. The power assembly works to drive the expanding shaft to move through the connecting shaft, and the expanding head moves relative to the expansion pipe to change the outer diameter of the expansion pipe. And the expansion pipe structure is adopted, so that the device adapts to bushings with different inner hole sizes, coaxial correction is realized, and the device has better universality.

Description

Technical Field

[0001] The present application relates to the technical field of assembly and processing of automobile parts, and in particular to an inner support component and an installation mechanism. Background Art

[0002] Shock absorber bushing is a commonly used automotive component, widely used in the automotive suspension system. As an important part of the automotive suspension system, the shock absorber bushing can protect other suspension components. It can reduce the wear and vibration of various components in the suspension system and increase the service life of the entire suspension system.

[0003] At present, bushings are mostly press-fitted, but the components that need to be press-fitted are large in size and bushings need to be installed in many places. And because the components to be installed themselves have certain structural errors, the positions of the mounting holes of the bushings to be installed on their surfaces may also have deviations. Therefore, there are certain limitations in the bushing press-fitting opportunities with fixed assembly positions. In October 2023, our company proposed "A Subframe Pressing Equipment", application number: CN202311296497.1, which discloses a rotating platform connected to a servo motor, and a stamping device arranged on one side of the rotating platform. The servo rotating platform is provided with a pressing assembly for fixing the subframe, and a floating seat. The subframe is mounted on the servo rotating platform and fixed by the pressing assembly. The mounting hole of the subframe is installed on the floating seat. The floating seat is deformed when subjected to force. The servo motor drives the rotating platform to rotate and drives the floating seat to move to the bottom of the stamping device. The stamping device works to press the bushing into the mounting hole of the subframe. The mounting seat is provided with a through channel, the mounting seat is connected to the calibration component, the top of the calibration component is the active end, the top surface of the active end is provided with a receiving groove adapted to the bottom structure of the bushing, and the active end is provided with a shaft adapted to the inner hole of the bushing; the calibration component is connected to the power cylinder and can extend out of the channel, the mounting hole of the subframe is connected to the bushing; the bushing is sleeved outside the shaft, and the bottom of the bushing is embedded in the receiving groove.

[0004] The above patent application uses a shaft designed to fit the inner hole of the bushing to achieve bushing installation, ensuring that the bushing can remain coaxial with the mounting seat of the subframe after being connected to the shaft. However, the use of a shaft to ensure coaxial connection requires high assembly accuracy between the shaft and the inner hole of the bushing, which limits the mounting seat and makes it non-universal. It is worth further improving the equipment seat. Utility Model Content

[0005] The technical problem to be solved by the present application is to provide an inner support assembly and an installation mechanism, which adopts an expansion tube structure, adapts to bushings of different inner hole sizes, realizes coaxial correction, and has better universality.

[0006] The technical solution adopted in the present application is: an internal support assembly, including a mounting seat and a connecting shaft, one end of the connecting shaft is connected to the power assembly, the other end of the connecting shaft passes through the central axis of the mounting seat and is covered with an expansion tube, and the other end of the connecting shaft is provided with a support head, the support head is a truncated cone-shaped structure with an outer diameter greater than the connecting shaft, and the expansion tube is located between the support head and the bottom surface of the mounting seat; the power assembly works by driving the support shaft to move through the connecting shaft, and the outer diameter of the expansion tube changes when the support head moves relative to the expansion tube.

[0007] Compared with the prior art, the advantages of the present application are that, first, a connecting shaft is arranged on the mounting seat, the connecting shaft passes through the central axis of the mounting seat, and is covered with an expansion tube, ensuring that the mounting seat, the connecting shaft, and the expansion tube are coaxially arranged. Secondly, a support head is arranged at the end of the connecting shaft in the present application, and the support head is a truncated cone-shaped structure with an outer diameter greater than that of the connecting shaft. Then, when the support head is embedded in the expansion tube, the inner diameter of the expansion tube will be changed, thereby forcing the expansion tube to expand and change the outer diameter of the expansion tube, so as to adapt to the bushings of different inner hole sizes. Specifically, the connecting shaft of the present application is connected to the power assembly, and the power assembly drives the connecting shaft to drive the support head to work. The expansion tube sleeve is arranged outside the connecting shaft, one end of which will be in contact and connected with the bottom surface of the mounting seat, and the other end is limited by the support head, so the position of the expansion tube is relatively immovable. When the support head moves, the support head will move relative to the expansion tube, changing the diameter of the part of the support head embedded in the expansion tube, thereby changing the outer diameter of the expansion tube. The present application adopts an expansion tube structure, which is adaptable to bushings with different inner hole sizes, realizes coaxial correction, and has better universality.

[0008] In some embodiments of the present application, a limit tube is protruding from the bottom surface of the mounting seat, the inner diameter of the limit tube is adapted to the outer diameter of the connecting shaft, and the other end of the connecting shaft passes through the limit tube. The present application adds a limit tube so that the inner diameter of the limit tube is adapted to the outer diameter of the connecting shaft, thereby limiting the position of the connecting shaft, ensuring the stability of the movement of the connecting shaft, and ensuring that the connecting shaft is coaxial with the mounting seat.

[0009] In some embodiments of the present application, the outer diameter of the limiting tube gradually decreases from top to bottom, the expansion tube is located between the limiting tube and the expansion head, and the bottom of the limiting tube extends into the expansion tube.

[0010] In the present application, through the structural arrangement of the limit tube and the support head, and the two are respectively located at the two ends of the expansion tube, when the inner and outer diameters of the expansion tube change, the limit tube and the support head can provide good support to ensure the stability of the expansion tube.

[0011] In some embodiments of the present application, the expansion tube includes a plurality of connecting rods arranged in a circular ring shape, the connecting rods are arranged parallel to the axial direction of the expansion tube, and the top and bottom ends of the connecting rods are respectively connected to connecting rods adjacent thereto and in different directions, thus forming an expansion tube structure that can be deformed under force and can adapt to different bushing inner hole diameters.

[0012] In some embodiments of the present application, the other end of the connecting shaft is also covered with a driving spring, one end of the driving spring abuts against the limit tube, and the other end of the driving spring abuts against the support head, and the driving spring is in a compressed state, and the driving spring applies a downward thrust to the support head so that the support head is away from the expansion tube. That is, when the power assembly is not working, the expansion tube is kept in a retracted state under the action of the driving spring, which is convenient for installing the bushing.

[0013] In some embodiments of the present application, the mounting seat is an inverted stepped truncated cone structure, and the limiting tube is located at the center of the mounting seat. The mounting seat with the above structure can better adapt to the installation of the product and is the preferred structure of the present application.

[0014] A mounting mechanism includes a base and an inner support component, wherein the base is connected to a mounting seat via a floating component. That is, the design scheme of the mounting mechanism of the present application makes the mounting seat a movable structure relative to the fixed base. When the product is mounted on the mounting seat, the frame to be pressed will be fixed by other reference positioning. If the mounting hole of the frame on the mounting seat has no position deviation and is a standard structural component, the mounting seat is not subject to force, and the corresponding floating component is also not subject to force deformation. If the mounting hole of the frame on the mounting seat has a position deviation, the frame will apply force to the mounting seat, forcing the floating component to deform, thereby causing the mounting seat to shift relative to the base to adapt to the position of the frame mounting hole. By adding a floating component, the present application makes the mounting seat a movable mounting seat that can adapt to the sub-frame mounting hole with a certain deviation.

[0015] In some embodiments of the present application, the floating assembly includes a first block seat, a second block seat and a third block seat stacked in sequence, the second block seat is provided with a protrusion 1 embedded in the first block seat, the protrusion 1 is connected to the first block seat through an X-direction spring group, the third block seat is provided with a protrusion 2 embedded in the second block seat, the protrusion 2 is connected to the second block seat through a Y-direction spring group, the third block seat can generate a Y-direction displacement relative to the second block seat when subjected to force, and the second block seat can generate an X-direction displacement relative to the first block seat when subjected to force.

[0016] In some embodiments of the present application, the base is fixedly connected to the first block seat, and the mounting seat is fixedly connected to the third block seat.

[0017] In some embodiments of the present application, the bottom surface of the first block seat is provided with a first groove, the top surface of the second block seat is provided with a convex block 1, the first groove is adapted to the structure of the convex block 1, the convex block 1 is embedded in the first groove, and the first groove limits the convex block 1 to move only along the X direction in the horizontal plane; the bottom surface of the second block seat is provided with a second groove, the top surface of the third block seat is provided with a convex block 2, the second groove is adapted to the structure of the convex block 2, the convex block 2 is embedded in the second groove, and the second groove limits the convex block 2 to move only along the Y direction in the horizontal plane. In the present application, for the convenience of description, the following are used as the drawings in the specification. Figure 1 Using this as a reference to distinguish the top surface from the bottom surface does not mean that the present application can only be installed in this orientation in actual use.

[0018] In some embodiments of the present application, the protrusion 1 is provided with an X-direction pin on both side walls in the X direction, and the first block seat is provided with a first waist-shaped hole correspondingly, and the X-direction pin extends into the first waist-shaped hole, and the length direction of the first waist-shaped hole is the vertical direction. The cooperation between the X-direction pin and the first waist-shaped hole further limits that, in the horizontal plane, the second block seat can only move along the X direction relative to the first block seat. However, the second block seat can also be displaced in the vertical direction relative to the first block seat.

[0019] In some embodiments of the present application, the second protrusion is provided with a Y-direction pin on both side walls in the Y direction, and the second block seat is provided with a second waist-shaped hole correspondingly, and the Y-direction pin extends into the second waist-shaped hole, and the length direction of the second waist-shaped hole is the vertical direction. The cooperation between the Y-direction pin and the second waist-shaped hole further defines that, in the horizontal plane, the third block seat can only move along the Y direction relative to the second block seat. However, the third block seat can also be displaced in the vertical direction relative to the second block seat.

[0020] The above-mentioned implementation modes can be combined arbitrarily based on the common knowledge in the art. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The present application will be further described in detail below in conjunction with the accompanying drawings and preferred embodiments, but those skilled in the art will appreciate that these drawings are drawn only for the purpose of explaining the preferred embodiments and therefore should not be used as a limitation on the scope of the present application. In addition, unless otherwise specified, the drawings are only schematically representing the composition or structure of the described objects and may contain exaggerated displays, and the drawings are not necessarily drawn to scale.

[0022] Figure 1 This is a schematic diagram of the structure of the inner support assembly in this application;

[0023] Figure 2 A cross-sectional view of the inner support assembly in this application;

[0024] Figure 3This is a schematic diagram of the exploded structure of the inner support assembly in this application;

[0025] Figure 4 This is a structural diagram of the working status of the installation mechanism of this application;

[0026] Figure 5 This is a top view of the installation mechanism for this application;

[0027] Figure 6 for Figure 2 Sectional view of section AA;

[0028] Figure 7 for Figure 2 Cross-sectional view of the middle BB section;

[0029] Figure 8 The figure is a schematic diagram of the exploded structure of the floating component.

[0030] Among them, the specific descriptions of the accompanying drawings are as follows: 1. base; 2. mounting seat; 3. first block seat; 4. second block seat; 5. third block seat; 6. protrusion one; 7. X-direction spring group; 8. protrusion two; 9. Y-direction spring group; 10. first groove; 12. X-direction pin shaft; 13. first waist-shaped hole; 14. second groove; 15. Y-direction pin shaft; 16. second waist-shaped hole; 21. connecting shaft; 22. expansion tube; 23. support head; 24. limit tube; 25. drive spring. DETAILED DESCRIPTION

[0031] The present application is described in detail below in conjunction with the accompanying drawings.

[0032] In order to make the purpose, technical solution and advantages of the present application more clearly understood, the present application is further described in detail below in conjunction with 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.

[0033] An internal support component, embodiment 1 is as follows Figures 1 to 3As shown: it includes a mounting seat 2 and a connecting shaft 21, one end of the connecting shaft 21 is connected to the power assembly, and the other end of the connecting shaft 21 passes through the central axis of the mounting seat 2 and is covered with an expansion tube 22, ensuring that the mounting seat 2, the connecting shaft 21, and the expansion tube 22 are coaxially arranged. A support head 23 is provided at the other end of the connecting shaft 21, and the support head 23 is a truncated cone structure with an outer diameter greater than the connecting shaft 21, and the expansion tube 22 is located between the support head 23 and the bottom surface of the mounting seat 2; then the support head 23 is embedded in the expansion tube 22, which will change the inner diameter of the expansion tube 22, thereby forcing the expansion tube 22 to expand and change the outer diameter of the expansion tube 22, so as to adapt to the bushings of different inner hole sizes. The power assembly works by driving the support shaft to move through the connecting shaft 21, and the movement of the support head 23 relative to the expansion tube 22 changes the outer diameter of the expansion tube 22. Specifically, the connecting shaft 21 of the present application is connected to the power assembly, and the power assembly works to drive the connecting shaft 21 to drive the support head 23 to work. The expansion tube 22 is sleeved outside the connecting shaft 21, one end of which is in contact with the bottom surface of the mounting seat 2, and the other end is limited by the support head 23, so the position of the expansion tube 22 is relatively immovable. When the support head 23 moves, the support head 23 will move relative to the expansion tube 22, changing the diameter of the part of the support head 23 embedded in the expansion tube 22, thereby changing the outer diameter of the expansion tube 22. The present application adopts the expansion tube 22 structure, adapts to bushings of different inner hole sizes, realizes coaxial correction, and has better universality.

[0034] In the present application, the power assembly may be a cylinder.

[0035] Embodiment 2, as Figures 1 to 3 As shown, a limit tube 24 is protruding from the bottom surface of the mounting seat 2, and the inner diameter of the limit tube 24 is adapted to the outer diameter of the connecting shaft 21, and the other end of the connecting shaft 21 passes through the limit tube 24. The present application adds a limit tube 24, so that the inner diameter of the limit tube 24 is adapted to the outer diameter of the connecting shaft 21, thereby limiting the position of the connecting shaft 21, ensuring the stability of the movement of the connecting shaft 21, and the coaxiality of the connecting shaft 21 and the mounting seat 2.

[0036] The outer diameter of the position-limiting tube 24 gradually decreases from top to bottom, and the expansion tube 22 is located between the position-limiting tube 24 and the expansion head 23, and the bottom of the position-limiting tube 24 extends into the expansion tube 22. In the present application, through the structural arrangement of the position-limiting tube 24 and the expansion head 23, and the two are respectively located at the two ends of the expansion tube 22, when the inner and outer diameters of the expansion tube 22 change, the position-limiting tube 24 and the expansion head 23 can provide good support to ensure the stability of the expansion tube 22.

[0037] The expansion tube 22 comprises a plurality of connecting rods arranged in a circular ring shape, the connecting rods are arranged parallel to the axial direction of the expansion tube 22, and the top and bottom ends of the connecting rods are respectively connected to the connecting rods adjacent thereto and in different directions, thus forming an expansion tube 22 structure that can be deformed under stress and can adapt to different bushing inner hole diameters.

[0038] The other end of the connecting shaft 21 is also covered with a driving spring 25, one end of the driving spring 25 abuts against the limiting tube 24, and the other end of the driving spring 25 abuts against the expansion head 23. The driving spring 25 is in a compressed state, and the driving spring 25 applies a downward thrust to the expansion head 23 so that the expansion head 23 is away from the expansion tube 22. That is, when the power assembly is not working, the expansion tube 22 is kept in a retracted state under the action of the driving spring 25, which is convenient for installing the bushing.

[0039] The mounting seat 2 is an inverted stepped truncated cone structure, and the limiting tube 24 is located at the center of the mounting seat 2. The mounting seat 2 of the above structure can better adapt to the installation of the product, and is the preferred structure of the present application.

[0040] The other contents of the second embodiment are the same as those of the first embodiment or the second embodiment.

[0041] A mounting mechanism, embodiment 3, such as Figures 5 to 8 As shown, it includes a base 1 and an inner support component as in Example 1 or Example 2, and the base 1 is connected to the mounting seat 2 through a floating component. That is, the design of the mounting mechanism of the present application makes the mounting seat 2 a movable structure relative to the fixed base 1. When the product is installed on the mounting seat 2, the frame to be pressed will be fixed through other reference positioning. If the mounting hole of the frame on the mounting seat 2 has no position deviation and is a standard structural part, then the mounting seat 2 is not subject to force, and the corresponding floating component is also not subject to force deformation. If the mounting hole of the frame on the mounting seat 2 has a position deviation, the frame will apply force to the mounting seat 2, forcing the floating component to deform, so that the mounting seat 2 is offset relative to the base 1 to adapt to the position of the frame mounting hole. By adding a floating component, the present application makes the mounting seat 2 a movable mounting seat 2, which can adapt to the sub-frame mounting hole with a certain deviation.

[0042] Embodiment 4, as Figures 5 to 8 As shown, the floating assembly includes a first block seat 3, a second block seat 4 and a third block seat 5 stacked in sequence, the second block seat 4 is provided with a protrusion 6 embedded in the first block seat 3, the protrusion 6 is connected to the first block seat 3 through an X-direction spring group 7, the third block seat 5 is provided with a protrusion 8 embedded in the second block seat 4, the protrusion 8 is connected to the second block seat 4 through a Y-direction spring group 9, the third block seat 5 can generate a Y-direction displacement relative to the second block seat 4 when subjected to force, and the second block seat 4 can generate an X-direction displacement relative to the first block seat 3 when subjected to force.

[0043] The base 1 is fixedly connected to the first block seat 3 , and the mounting seat 2 is fixedly connected to the third block seat 5 .

[0044] The bottom surface of the first block seat 3 is provided with a first groove 10, and the top surface of the second block seat 4 is provided with a protrusion 6. The first groove 10 is adapted to the structure of the protrusion 6, and the protrusion 6 is embedded in the first groove 10. The first groove 10 limits the protrusion 6 to move only along the X direction in the horizontal plane; the bottom surface of the second block seat 4 is provided with a second groove 14, and the top surface of the third block seat 5 is provided with a protrusion 8. The second groove 14 is adapted to the structure of the protrusion 8, and the protrusion 8 is embedded in the second groove 14. The second groove 14 limits the protrusion 8 to move only along the Y direction in the horizontal plane. In this application, for the convenience of description, the following description is used as the figure in the specification. Figure 1 Using this as a reference to distinguish the top surface from the bottom surface does not mean that the present application can only be installed in this orientation in actual use.

[0045] The protrusion 16 is provided with an X-direction pin 12 on both side walls in the X direction, and the first block seat 3 is provided with a first waist-shaped hole 13 correspondingly, and the X-direction pin 12 extends into the first waist-shaped hole 13, and the length direction of the first waist-shaped hole 13 is the vertical direction. The cooperation between the X-direction pin 12 and the first waist-shaped hole 13 further limits that, in the horizontal plane, the second block seat 4 can only move along the X direction relative to the first block seat 3. However, the second block seat 4 can also move in the vertical direction relative to the first block seat 3.

[0046] The protrusion 8 is provided with a Y-direction pin 15 on both side walls in the Y direction, and the second block seat 4 is provided with a second waist-shaped hole 16 correspondingly, and the Y-direction pin 15 extends into the second waist-shaped hole 16, and the length direction of the second waist-shaped hole 16 is the vertical direction. The cooperation between the Y-direction pin 15 and the second waist-shaped hole 16 further defines that, in the horizontal plane, the third block seat 5 can only move along the Y direction relative to the second block seat 4. However, the third block seat 5 can also move in the vertical direction relative to the second block seat 4.

[0047] The rest of the content of the fourth embodiment is the same as that of the third embodiment.

[0048] The present application is described in detail above. Specific examples are used in this article to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only used to help understand the present application and its core ideas. It should be pointed out that for ordinary technicians in this technical field, without departing from the principles of the present application, several improvements and modifications can be made to the present application, and these improvements and modifications also fall within the scope of protection of the claims of the present application.

Claims

1. An inner support assembly, characterized in that: The invention comprises a mounting seat (2) and a connecting shaft (21), one end of the connecting shaft (21) being connected to a power assembly, the other end of the connecting shaft (21) passing through the central axis of the mounting seat (2) and being covered with an expansion tube (22), the other end of the connecting shaft (21) being provided with a spreading head (23), the spreading head (23) being a truncated cone-shaped structure having an outer diameter greater than that of the connecting shaft (21), the expansion tube (22) being located between the spreading head (23) and the bottom surface of the mounting seat (2); when the power assembly is in operation, the spreading shaft is driven to move through the connecting shaft (21), and the spreading head (23) moves relative to the expansion tube (22), thereby changing the outer diameter of the expansion tube (22).

2. An inner support assembly according to claim 1, characterized in that: A limiting tube (24) is protruding from the bottom surface of the mounting seat (2), the inner diameter of the limiting tube (24) is adapted to the outer diameter of the connecting shaft (21), and the other end of the connecting shaft (21) passes through the limiting tube (24).

3. An inner support assembly according to claim 2, characterized in that: The outer diameter of the limiting tube (24) gradually decreases from top to bottom, the expansion tube (22) is located between the limiting tube (24) and the expansion head (23), and the bottom of the limiting tube (24) extends into the expansion tube (22).

4. An inner support assembly according to claim 1, characterized in that: The expansion tube (22) comprises a plurality of connecting rods arranged in a circular ring shape, wherein the connecting rods are arranged parallel to the axial direction of the expansion tube (22), and the top end and the bottom end of the connecting rods are respectively connected to connecting rods adjacent thereto and in different directions.

5. An inner support assembly according to claim 2 or 3, characterized in that: The other end of the connecting shaft (21) is also covered with a driving spring (25), one end of the driving spring (25) abuts against the limiting tube (24), and the other end of the driving spring (25) abuts against the supporting head (23). The driving spring (25) is in a compressed state, and the driving spring (25) applies a downward thrust to the supporting head (23), so that the supporting head (23) is away from the expansion tube (22).

6. An inner support assembly according to claim 1, characterized in that: The mounting seat (2) is in the form of an inverted stepped frustum structure, and the limiting tube (24) is located at the center of the mounting seat (2).

7. A mounting mechanism, characterized in that: It comprises a base (1) and an inner support assembly as claimed in any one of claims 1 to 6, wherein the base (1) is connected to a mounting seat (2) via a floating assembly.

8. A mounting mechanism according to claim 7, characterized in that: The floating assembly comprises a first block seat (3), a second block seat (4) and a third block seat (5) stacked in sequence, the second block seat (4) being provided with a first protrusion (6) embedded in the first block seat (3), the first protrusion (6) being connected to the first block seat (3) via an X-direction spring group (7), the third block seat (5) being provided with a second protrusion (8) embedded in the second block seat (4), the second protrusion (8) being connected to the second block seat (4) via a Y-direction spring group (9), the third block seat (5) being subjected to force relative to the second block seat (4) being able to generate a Y-direction displacement, and the second block seat (4) being subjected to force relative to the first block seat (3) being able to generate an X-direction displacement.

9. The mounting mechanism according to claim 8, characterized in that: The base (1) is fixedly connected to the first block seat (3), and the mounting seat (2) is fixedly connected to the third block seat (5).

10. The mounting mechanism according to claim 8, characterized in that: The bottom surface of the first block seat (3) is provided with a first groove (10), and the top surface of the second block seat (4) is provided with a protrusion 1 (6), the first groove (10) is adapted to the structure of the protrusion 1 (6), the protrusion 1 (6) is embedded in the first groove (10), and the first groove (10) limits the protrusion 1 (6) to move only along the X direction in the horizontal plane; the bottom surface of the second block seat (4) is provided with a second groove (14), and the top surface of the third block seat (5) is provided with a protrusion 2 (8), the second groove (14) is adapted to the structure of the protrusion 2 (8), the protrusion 2 (8) is embedded in the second groove (14), and the second groove (14) limits the protrusion 2 (8) to move only along the Y direction in the horizontal plane.

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