CN216228108U

CN216228108U - Hole positioning fixture

Info

Publication number: CN216228108U
Application number: CN202122907475.7U
Authority: CN
Inventors: 杨超; 李磊
Original assignee: Chengdu Chuangke Intelligent Control Automation Technology Co ltd
Current assignee: Chengdu Chuangke Intelligent Control Automation Technology Co ltd
Priority date: 2021-11-25
Filing date: 2021-11-25
Publication date: 2022-04-08
Anticipated expiration: 2031-11-25

Abstract

The application provides a hole positioning fixture, include: locating pin and hold-down mechanism. The bottom of the positioning pin is provided with a rectangular groove. Hold-down mechanism includes two risers, and the riser all is located the rectangular channel, and the riser top all is equipped with the lug, lug protrusion in one side of riser. The middle section of riser all has the arc hole, wears to be equipped with a guide bar in the arc hole simultaneously. When the vertical plate moves towards the top end of the positioning pin, the guide rod guides the lug to move towards the axis of the positioning pin through the arc-shaped hole, and the lug can be completely positioned in the rectangular groove. When the vertical plate moves towards the bottom of the positioning pin, the guide rod guides the convex block to move towards the outer side of the positioning pin through the arc-shaped hole, so that the convex block protrudes out of the outer wall of the positioning pin. A lifting rod is arranged at the bottom of the vertical plate in a rotating mode, the rotating axis is parallel to the guide rod, and the lifting rod moves in a reciprocating mode along the axis direction of the positioning pin. The hole aligning and the part compressing can be simultaneously realized, the arrangement of an independent compressing mechanism is avoided, and the positioning and clamping efficiency is higher.

Description

Hole positioning fixture

Technical Field

The utility model belongs to the technical field of positioning fixtures, and particularly relates to a hole positioning fixture.

Background

In machine manufacturing, the inner hole is often located by using a pin, such as a locating hole at the bottom of a main beam of an automobile, which is usually a tubular structure, and the locating hole is located at the bottom. Most of the existing positioning modes are realized by directly connecting positioning pins and positioning holes, the clamping function cannot be realized, an independent pressing mechanism needs to be arranged, the space position of the main beam can be occupied, and the installation of other parts on the automobile main beam is influenced. But also can increase the operating time because of setting up hold-down mechanism alone, influence the efficiency of girder location installation.

SUMMERY OF THE UTILITY MODEL

In order to solve the defects of the prior art, the utility model provides the hole positioning clamp, the compression structure is arranged in the positioning pin, the hole positioning and the part compression are realized simultaneously, the arrangement of a separate compression mechanism is avoided, the occupation is reduced, and the positioning clamping efficiency is higher.

In order to realize the purpose of the utility model, the following scheme is adopted:

a hole-locating fixture, comprising: locating pin and hold-down mechanism.

The bottom of the positioning pin is provided with a rectangular groove, and the positioning pin is arranged on the top surface of a supporting seat.

The hold-down mechanism includes two risers that set up along vertical direction, and the riser all is located the rectangular channel, and the riser top all is equipped with the lug, lug protrusion in one side of riser, and the lug of two risers is respectively towards the both sides opening part of rectangular channel.

The middle section of riser all has the arc hole, wears to be equipped with a guide bar simultaneously in the arc hole, and the guide bar is fixed the setting.

When the vertical plate moves towards the top end of the positioning pin, the guide rod guides the lug to move towards the axis of the positioning pin through the arc-shaped hole, and the lug can be completely positioned in the rectangular groove.

When the vertical plate moves towards the bottom of the positioning pin, the guide rod guides the convex block to move towards the outer side of the positioning pin through the arc-shaped hole, so that the convex block protrudes out of the outer wall of the positioning pin.

A lifting rod is arranged at the bottom of the vertical plate in a rotating mode, the rotating axis is parallel to the guide rod, and the lifting rod moves in a reciprocating mode along the axis direction of the positioning pin.

Further, the supporting seat is of a vertically arranged groove-shaped structure, a groove is formed in one side of the supporting seat, and the pressing mechanism is arranged in the groove to ensure that the positioning clamp is clean and tidy externally and protect the pressing mechanism.

Further, still include actuating mechanism, including driver part, driver part rotate establish with one side of supporting seat, at least one side of driver part's expansion end is equipped with the arm-tie, the rear end of arm-tie articulates in the lifter, the middle section of arm-tie articulates in the front end of a backup pad, the rear end of backup pad is fixed hinge structure.

Furthermore, pull plates are arranged on two sides of the movable end of the driving part, the pull plates slide to be in contact with two sides of the guide rod, and each pull plate is connected with a support plate.

The utility model has the beneficial effects that: the movable convex block is arranged in the positioning pin, the convex block is used for compressing the pipe fitting when protruding, when the positioning pin needs to be inserted into or taken out of the positioning hole, the convex block is hidden in the positioning pin, and meanwhile, the positioning of the hole and the compression of the part are realized. And inside the locating pin was located to the lug that is used for the location, avoided setting up solitary hold-down mechanism, reduced hold-down mechanism's occupy-place, and had higher location centre gripping efficiency.

Drawings

The drawings described herein are for illustrative purposes only of selected embodiments and not all possible implementations, and are not intended to limit the scope of the present disclosure.

Fig. 1 shows a schematic diagram of the present application as applied to the present application.

Fig. 2 shows a side view of the overall structure of the present application.

Figure 3 shows another side view of the overall structure of the present application.

Fig. 4 shows a side view of the internal structure of the present application when positioned for clamping.

Figure 5 shows another side view of the internal structure of the present application as it is positioned and clamped.

Fig. 6 shows a side view of the internal structure of the present application as the locating pin is inserted or removed.

FIG. 7 shows another side view of the internal structure of the present application as the locating pin is being inserted or removed.

The labels in the figure are: positioning pin-10, rectangular groove-101, supporting seat-11, pressing mechanism-20, vertical plate-21, projection-211, arc hole-212, guide bar-22, lifting bar-23, driving mechanism-30, driving component-31, pulling plate-32 and supporting bar-33.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings, but the described embodiments of the present invention are a part of the embodiments of the present invention, not all of the embodiments of the present invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, or orientations or positional relationships that the products of the present invention are usually placed when in use, and are only for convenience of describing the present invention and simplifying the description. The terms "first," "second," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance. The terms "parallel", "perpendicular", etc. do not require that the components be absolutely parallel or perpendicular, but may be slightly inclined.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; either directly or indirectly through intervening media, or through both elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

As shown in fig. 2 to 7, a hole-positioning jig includes: a locating pin 10 and a hold-down mechanism 20.

Specifically, the bottom of the positioning pin 10 is provided with a rectangular groove 101, the positioning pin 10 is disposed on the top surface of a supporting seat 11, and the supporting seat 11 is fixedly installed through the bottom surface to ensure sufficient supporting force.

Specifically, hold-down mechanism 20 includes two risers 21 that set up along vertical direction, and in rectangular channel 101 was all located to riser 21, riser 21 top all was equipped with lug 211, and lug 211 protrusion in one side of riser 21, the both sides opening part of rectangular channel 101 is faced respectively to two riser 21's lug 211.

More specifically, the middle section of riser 21 all has arc hole 212, wears to be equipped with a guide bar 22 in the arc hole 212 simultaneously, and guide bar 22 fixed mounting is in supporting seat 11. The guide rod 11 is of a cylindrical configuration to facilitate sliding within the arcuate aperture 212.

More specifically, as shown in fig. 6 and 7, when the vertical plate 21 moves towards the top end of the positioning pin 10, the guide rod 22 guides the projection 211 to move towards the axis of the positioning pin 10 through the arc-shaped hole 212, and the projection 211 can be completely positioned in the rectangular groove 101, so that the positioning pin 10 can be inserted into or withdrawn from the positioning hole.

More specifically, as shown in fig. 4 and 5, when the vertical plate 21 moves to the bottom of the positioning pin 10, the guide bar 22 guides the protrusion 211 to move to the outside of the positioning pin 10 through the arc hole 212, so that the protrusion 211 protrudes from the outer wall of the positioning pin 10. As shown in fig. 1, at this time, the positioning pin 10 passes through the positioning hole, and the protrusion 211 is pressed against the inner wall of the pipe, thereby positioning and pressing the pipe.

More specifically, the bottom of the vertical plate 21 is simultaneously rotatably provided with a lifting rod 23, the axis of rotation is parallel to the guide rod 22, and the lifting rod 23 reciprocates along the axial direction of the positioning pin 10.

Preferably, as shown in fig. 2 and 3, the supporting seat 11 is a vertically arranged groove-shaped structure, one side of which has a groove, and the pressing mechanism 20 is arranged in the groove to ensure the neatness of the outside of the positioning clamp and protect the pressing mechanism.

Preferably, as shown in fig. 2 to 7, the device further includes a driving mechanism 30, which includes a driving member 31, wherein the driving member 31 is rotatably disposed on one side of the supporting seat 11 for maintenance.

More specifically, at least one side of the movable end of the driving part 31 is provided with a pulling plate 32, the rear end of the pulling plate 32 is hinged to the lifting rod 23, the middle section of the pulling plate 32 is hinged to the front end of a supporting plate 33, and the rear end of the supporting plate 33 is of a fixed hinged structure.

In use, the driving member 31 drives the pulling plate 32, so that the pulling plate 32 rotates around the hinge with the supporting plate 33, the front end of the pulling plate 32 pushes the lifting rod 23 to move, and meanwhile, in order to keep the lifting rod 23 moving along the axis of the positioning pin 10, the supporting plate 33 rotates around the hinge at the rear end, and the driving member 31 also rotates.

As shown in fig. 4 and 5, when the movable end of the driving part 31 extends out, the front end of the pulling plate 32 is lifted upwards, the rear end of the pulling plate 32 is downward, so as to pull the lifting rod 23 downwards, thereby driving the protrusion 211 to protrude out of the rectangular groove 101, and simultaneously, the riser 21 is pulled downwards by the downward pressure of the rear end of the pulling plate 32, so as to press the inner wall of the pipe.

As shown in fig. 6 and 7, when the movable end of the driving member 31 is retracted, the front end of the pulling plate 32 is moved downward, and the rear end of the pulling plate 32 is moved upward, so as to move the lifting rod 23 upward, and drive the protrusion 211 to move toward the axis of the positioning pin 10 until the protrusion 211 is completely hidden in the positioning pin 10, and at this time, the positioning pin 10 can be inserted into or removed from the positioning hole.

It is further preferable that the movable end of the driving member 31 is provided with pulling plates 32 on both sides thereof, the pulling plates 32 are slidably in contact with both sides of the guide bar 22, and a supporting plate 33 is attached to each pulling plate 32 to improve the operation stability of the driving mechanism 30 and to provide sufficient pressing power to the pressing mechanism 20.

The foregoing is only a preferred embodiment of the present invention and is not intended to be exhaustive or to limit the utility model. It will be understood by those skilled in the art that various changes may be made and equivalents may be substituted without departing from the scope of the utility model.

Claims

1. A hole positioning fixture, comprising:

the bottom of the positioning pin (10) is provided with a rectangular groove (101), and the positioning pin (10) is arranged on the top surface of a supporting seat (11);

the pressing mechanism (20) comprises two vertical plates (21) arranged in the vertical direction, the vertical plates (21) are arranged in the rectangular groove (101), the tops of the vertical plates (21) are provided with convex blocks (211), the convex blocks (211) protrude out of one side of the vertical plates (21), and the convex blocks (211) of the two vertical plates (21) face openings on two sides of the rectangular groove (101) respectively;

arc-shaped holes (212) are formed in the middle sections of the vertical plates (21), a guide rod (22) penetrates through the arc-shaped holes (212), and the guide rod (22) is fixedly arranged;

when the vertical plate (21) moves towards the top end of the positioning pin (10), the guide rod (22) guides the lug (211) to move towards the axis of the positioning pin (10) through the arc-shaped hole (212), and the lug (211) can be completely positioned in the rectangular groove (101);

when the vertical plate (21) moves towards the bottom of the positioning pin (10), the guide rod (22) guides the lug (211) to move towards the outer side of the positioning pin (10) through the arc-shaped hole (212), so that the lug (211) protrudes out of the outer wall of the positioning pin (10);

a lifting rod (23) is arranged at the bottom of the vertical plate (21) in a rotating mode, the rotating axis is parallel to the guide rod (22), and the lifting rod (23) moves in a reciprocating mode along the axis direction of the positioning pin (10).

2. A hole-positioning fixture as claimed in claim 1, characterized in that the support base (11) is a vertically arranged channel structure with a groove on one side, and the pressing means (20) is arranged in the groove to ensure the outer part of the fixture is clean and protect the pressing means.

3. A hole-positioning fixture as claimed in claim 1, further comprising a driving mechanism (30) including a driving member (31), wherein the driving member (31) is rotatably disposed on one side of the supporting base (11), at least one side of the movable end of the driving member (31) is provided with a pulling plate (32), the rear end of the pulling plate (32) is hinged to the lifting rod (23), the middle section of the pulling plate (32) is hinged to the front end of a supporting plate (33), and the rear end of the supporting plate (33) is a fixed hinge structure.

4. A hole positioning fixture as claimed in claim 3, characterized in that the movable end of the driving member (31) is provided with pulling plates (32) on both sides, the pulling plates (32) are slidably in contact with both sides of the guide bar (22), and a support plate (33) is connected to each pulling plate (32).