CN215616261U

CN215616261U - Mounting mechanism for lining in hole

Info

Publication number: CN215616261U
Application number: CN202120817238.9U
Authority: CN
Inventors: 陈小娟
Original assignee: Shanghai Plastic Nanjing Co ltd
Current assignee: Shanghai Plastic Nanjing Co ltd
Priority date: 2021-04-21
Filing date: 2021-04-21
Publication date: 2022-01-25
Anticipated expiration: 2031-04-21

Abstract

The utility model relates to the technical field of automobile part production, in particular to an installation mechanism for an inner hole lining, which comprises the following components: the first linear driving piece is positioned below the part with the hole, and the driving end is provided with a first driving rod; the second linear driving piece is positioned above the part with the hole, and the driving end is provided with a second driving rod; the axes of the first driving rod and the second driving rod are overlapped with the axis of the part with the hole, and the first driving rod is provided with a step shaft for accommodating the bushing and used for limiting the bushing. According to the utility model, the first driving piece and the second driving piece which are positioned above and below the part with the hole can keep the bushing to be accurately positioned in the process of entering the hole, and radial deviation can not occur.

Description

Mounting mechanism for lining in hole

Technical Field

The utility model relates to the technical field of automobile part production, in particular to an installation mechanism for an in-hole bushing.

Background

In the moving parts, parts are abraded due to long-term friction, and the parts are required to be replaced when the clearance between the shaft and the hole is abraded to a certain degree, so that a designer selects a material with lower hardness and better wear resistance as a shaft sleeve or a bushing in the design, the abrasion of the shaft and the seat can be reduced, and the cost for replacing the shaft or the seat can be saved when the shaft sleeve or the bushing is abraded to a certain degree for replacement, and generally, the bushing and the seat are in interference fit.

In the production and assembly process of automobile parts, a bush is required to be added in holes of seats, and the bush is mounted in a product after being pre-tightened by using an air cylinder and then a pre-tightening auxiliary jig at present. This mounting tends to cause the bushing to move off-axis during movement, failing to fit in place or damaging the part.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a mounting mechanism for a lining in a hole, which can improve the stability of a driving structure, ensure that the lining is mounted in the hole accurately with higher precision when moving along an axis, and improve the accuracy to reduce collision.

In order to achieve the above object, the present invention provides an in-hole bushing mounting mechanism, comprising:

the first linear driving piece is positioned below the part with the hole, and the driving end is provided with a first driving rod;

the second linear driving piece is positioned above the part with the hole, and the driving end is provided with a second driving rod;

the axes of the first driving rod and the second driving rod are overlapped with the axis of the part with the hole, the first driving rod is provided with a step shaft for accommodating the bush and used for limiting the bush, and when the bush is sleeved on the step shaft of the first driving rod, the second driving rod is abutted to the first driving rod and attached to the first driving rod to move until the bush is placed into the part with the hole.

Preferably, the end of the first driving rod is provided with a first engaging portion, the end of the second driving rod is provided with a second engaging portion, and the first engaging portion can engage with the second engaging portion to keep the first driving rod and the second driving rod relatively fixed in the radial direction.

Preferably, the first engaging portion is a cone or truncated cone shaped protrusion or recess structure.

Preferably, the linear driving device further comprises a first jig which is arranged on the outer wall of the first driving rod and is fixedly connected with the first linear driving piece, and the first driving rod is connected with the first jig in a sliding mode along the axial direction.

Preferably, the linear driving device further comprises a second jig which is arranged on the outer wall of the second driving rod and is fixedly connected with the second linear driving piece, and the second driving rod is connected with the second jig in a sliding mode along the axial direction.

Preferably, the first driving rod comprises a guide section and a limiting section, wherein the guide section is arranged in a shape of a rectangular rod and is in sliding connection with a rectangular hole formed in the first jig, the limiting section is located above the guide section and is constructed in a cylindrical shape to form a step shaft, and the bushing is sleeved on the outer wall of the step shaft.

Preferably, the step shaft and the bushing are transition fitted.

Compared with the prior art, the utility model has the advantages that:

according to the utility model, the first driving piece and the second driving piece which are positioned above and below the part with the hole can keep the bushing to be accurately positioned in the process of entering the hole, and radial deviation can not occur.

It should be understood that all combinations of the foregoing concepts and additional concepts described in greater detail below can be considered as part of the inventive subject matter of the present disclosure unless such concepts are mutually inconsistent. In addition, all combinations of claimed subject matter are considered a part of the inventive subject matter of this disclosure.

The foregoing and other aspects, embodiments and features of the present teachings can be more fully understood from the following description taken in conjunction with the accompanying drawings. Additional aspects of the present invention, such as features and/or advantages of exemplary embodiments, will be apparent from the description which follows, or may be learned by practice of specific embodiments in accordance with the teachings of the present invention.

Drawings

The drawings are not intended to be drawn to scale. In the drawings, each identical or nearly identical component that is illustrated in various figures may be represented by a like numeral. For purposes of clarity, not every component may be labeled in every drawing. Embodiments of various aspects of the present invention will now be described, by way of example, with reference to the accompanying drawings, in which:

FIG. 1 is an exploded view of the in-hole bushing mounting mechanism of the present invention;

FIG. 2 is a schematic structural view of the bushing-in-hole mounting mechanism of the present invention in a first state;

FIG. 3 is a schematic structural view of the bushing-in-hole mounting mechanism of the present invention in a second state;

FIG. 4 is a schematic view of the first drive rod of the bushing-in-hole mounting mechanism of the present invention;

FIG. 5 is a schematic view of the second driving rod of the bushing installation mechanism in the hole of the present invention.

Detailed Description

In order to better understand the technical content of the present invention, specific embodiments are described below with reference to the accompanying drawings.

In this disclosure, aspects of the present invention are described with reference to the accompanying drawings, in which a number of illustrative embodiments are shown. Embodiments of the present disclosure are not necessarily intended to include all aspects of the utility model. It should be appreciated that the various concepts and embodiments described above, as well as those described in greater detail below, may be implemented in any of numerous ways for the inline bushing mounting mechanism, as the disclosed concepts and embodiments are not limited to any implementation. In addition, some aspects of the present disclosure may be used alone, or in any suitable combination with other aspects of the present disclosure.

In the production and assembly process of automobile parts, a bush needs to be added in holes of seats, and the bush is mounted in a product after being pre-tightened by using an air cylinder and then a pre-tightening auxiliary jig at present. The utility model aims to realize that the upper driving rod and the lower driving rod are involuted to guide and right the lower driving rod, so that the lower driving rod is kept not to move off the axis, the accuracy of the bushing in the installation process can be improved, and the part collision is avoided.

Referring to fig. 1, the present embodiment provides a bushing in hole mounting mechanism, which mainly includes a first linear driving member 6, a second linear driving member 1, and two driving rods connected to the first driving member 6 and the second driving member 1.

Specifically, the first linear driving member 6 is located below a perforated part (not shown in the figure), and the driving end of the first linear driving member 1 is provided with a first driving rod 5; the second linear drive 1 is located above the apertured part and has a second drive rod 2 at the drive end.

The axes of the first driving rod 5 and the second driving rod 2 coincide with the axis of the part with the hole, the first driving rod 5 is provided with a step shaft 52 for accommodating the bush 7, the bush 7 is limited, and when the bush 7 is sleeved on the step shaft 52 of the first driving rod 5, the second driving rod 2 and the first driving rod 5 are involutory and are attached to each other to move until the bush is put into the part with the hole.

Thus, referring to fig. 2, first, the first linear driving element 6 is in a contracted state, the bushing 7 is placed on the step shaft 52 at the upper section of the first driving rod 5 and placed in the first fixture 4 for pre-tightening, then the second linear driving element 1 is changed from the contracted state to an extended state, and the second driving rod 2 is pressed on the first driving rod 5 to realize involution, and at this time, the bushing 7 is located below a part (not shown) with a hole.

Referring to fig. 3, the first linear driving member 6 drives the first driving rod 5 to move upward, the second linear driving member 1 contracts, the second driving rod 2 moves upward, the bushing 7 enters the target hole after not completely separating from the first jig 4, the bushing 7 moves upward and moves into the target hole of the part with the hole, then the first linear driving member 6 and the second linear driving member 1 reset, and the step shaft 52 of the first driving rod 5 is separated from the bushing 7, so that the bushing 7 is installed.

So, in the in-process of above-mentioned bush 7 installation, the second actuating lever 2 can restrict the direction of motion of first actuating lever 5, namely, pole one end originally is fixed, and present pole both ends are all fixed, and stability improves greatly, even take place slight collision when bush 7 contacts the pore wall of part, also can be with accurate the installing of bush 7 in the pore wall of part.

In the above embodiment, the first and second

linear actuators

6 and 1 are electric cylinders or air cylinders, preferably air cylinders.

Further, as shown in fig. 4 and 5, in order to keep the first driving rod 5 and the second driving rod 2 relatively positioned after being aligned, the end of the first driving rod 5 is provided with a first engaging portion 53, the end of the second driving rod 2 is provided with a second engaging portion 21, the first engaging portion 53 can engage with the second engaging portion 21, and the first driving rod 5 and the second driving rod 2 are kept relatively fixed in the radial direction.

In an alternative embodiment, the first engaging portion 53 is a cone or truncated cone shaped protrusion or recess structure, which is illustrated as a cone shaped recess structure, and the second engaging portion 21 is a cone shaped protrusion structure which is engaged with the first engaging portion, so as to maintain the radial relative positioning of the connecting portions of the first driving rod 5 and the second driving rod 2, i.e. to maintain the reliability of the axial movement of the bushing 7.

Referring to fig. 2 and 3, the linear driving device further includes a first fixture 4 disposed on an outer wall of the first driving rod 5 and fixedly connected to the first linear driving member 6, wherein the first driving rod 5 is slidably connected to the first fixture 4 along an axial direction, and the first fixture 4 further includes a cavity for limiting the bushing 7, and when the bushing 7 is placed outside the step shaft 52, the bushing is in a pre-tightened state. The second fixture 3 is arranged on the outer wall of the second driving rod 2, and is fixedly connected with the second linear driving piece 1, and the second driving rod 2 is connected with the second fixture 3 in a sliding mode along the axial direction.

Further, the first driving rod 5 includes a guide section and a limit section, wherein the guide section is configured to be a rectangular rod shape and is slidably connected to a rectangular hole provided in the first jig 4, the limit section is located above the guide section and is configured to be a cylindrical shape to form a step shaft 52, and the bushing 7 is sleeved on an outer wall of the step shaft 52.

In an alternative embodiment, as shown in fig. 4, the stopper section is configured in a circular truncated cone shape, and includes a cylindrical section 51 and a stepped shaft 52.

Further, the stepped shaft 52 and the bush 7 are transition fitted. Thus, after the bush 7 is installed in the part with the hole, when the first driving rod 5 moves downwards, the bush 7 cannot move downwards along with the first driving rod.

By combining the embodiment, the bushing can be accurately positioned in the process of entering the hole through the first driving piece and the second driving piece which are positioned above and below the part with the hole, and radial deviation cannot occur.

Although the present invention has been described with reference to the preferred embodiments, it is not intended to be limited thereto. Those skilled in the art can make various changes and modifications without departing from the spirit and scope of the utility model. Therefore, the protection scope of the present invention should be determined by the appended claims.

Claims

1. Downthehole bush installation mechanism, its characterized in that includes:

2. The inline bushing mounting mechanism of claim 1, wherein the first driving rod has a first engaging portion at an end thereof, and the second driving rod has a second engaging portion at an end thereof, the first engaging portion being engageable with the second engaging portion to keep the first driving rod and the second driving rod relatively fixed in a radial direction.

3. The in-hole bushing mounting mechanism of claim 2, wherein said first engaging portion is a conical or truncated cone shaped protrusion or recess structure.

4. The in-hole bushing mounting mechanism of claim 1, further comprising a first fixture disposed on an outer wall of the first driving rod and fixedly connected with respect to the first linear driving member, wherein the first driving rod is slidably connected to the first fixture in an axial direction.

5. The in-hole bushing mounting mechanism of claim 4, further comprising a second fixture disposed on an outer wall of a second driving rod and fixedly connected with respect to a second linear driving member, wherein the second driving rod is slidably connected with the second fixture along an axial direction.

6. The in-hole bushing mounting mechanism according to claim 4, wherein said first driving rod comprises a guiding section and a limiting section, wherein the guiding section is configured as a rectangular rod shape and is slidably connected with a rectangular hole provided in said first jig, said limiting section is located above the guiding section and is configured as a cylinder shape to form a step shaft, and the bushing is sleeved on an outer wall of the step shaft.

7. The in-hole bushing mounting mechanism of any one of claims 1-6 wherein said step shaft and bushing transition fit.