CN216179853U

CN216179853U - Positioning device

Info

Publication number: CN216179853U
Application number: CN202122436066.3U
Authority: CN
Inventors: 耿继宝; 杨兴宇; 朱宁; 李朝阳
Original assignee: Anhui Specreation Instrument Science & Technology Co ltd
Current assignee: Anhui Specreation Instrument Science & Technology Co ltd
Priority date: 2021-10-08
Filing date: 2021-10-08
Publication date: 2022-04-05
Anticipated expiration: 2031-10-08

Abstract

The utility model belongs to the technical field of measurement, and particularly relates to a positioning device which comprises a base, wherein a target holder which is integrally tubular is arranged on the base, at least three connecting screws are arranged on the base, and the connecting screws are used for adjusting the connecting posture of the base and a surface to be marked; the column body of the dotting cone is inserted into the tube hole of the target base to form linear displacement matching with the tube hole along the axial direction of the target base, the cone tip of the dotting cone is positioned on the axis of the tube hole, the hole end of the tube hole, which is far away from the base, is a positioning concave surface I with a small lower part and a large upper part, the target ball and the positioning concave surface I form abutting type positioning matching, and the center of the target ball is positioned on the axis of the tube hole when the target ball and the positioning concave surface I are abutted and matched; the side wall of the target holder is provided with a level bubble. The utility model can realize accurate positioning and dotting marking on the vertical surface by matching with the laser tracker, and realize high-precision positioning and installation of the precision instrument.

Description

Positioning device

Technical Field

The utility model belongs to the technical field of measurement, and particularly relates to a positioning device.

Background

The laser tracker has the characteristics of high measurement precision, large working range, simplicity in operation, portability and the like, and is widely applied to global calibration of a multi-sensor three-dimensional vision measurement system. During global calibration, firstly establishing a space coordinate system of the laser tracker, then placing the target ball at different positions in an experimental field, reading three-dimensional coordinates of the mirror surface center of the target ball under the space coordinate system, and establishing a plurality of calibration points. The basic working principle is that the tracking head of the laser tracker emits laser, the laser is received by the target ball and reflected back to the tracking head, and the spatial position coordinates of the target ball are obtained through data processing. Target ball usually locates the target point department through the target stand, and the installation accuracy of target stand will directly influence the positioning accuracy of target ball, however current target stand can't judge whether the pedestal is vertical or the level is placed when using.

Chinese patent CN211515569U discloses a mobile dotting device, which comprises a dotting cone, a target ball seat and a fine tuning base. The dotting cone can be a chisel with a pointed head being a cone; the target ball seat is a hollow cylinder with a base, and the size of the hollow part is set to enable the pointed head part and the body of the dotting cone to fall into the hollow part; the fine tuning base is provided with an outer frame and an inner frame, the inner frame can horizontally move in the outer frame, and the size of the inner frame enables the base of the target ball seat to be fixed on the inner frame; the outer frame is provided with horizontal bubbles which are used for checking and ensuring whether the fine tuning base is kept horizontal. However, the solution can only be used for dotting positioning on a transverse plane, and cannot be used for dotting positioning on a vertical plane.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a positioning device which can be matched with a laser tracker and a dotting cone to mark in a plumb bob surface to obtain a positioning point.

In order to realize the purpose, the utility model adopts the technical scheme that: a positioning device comprises a base, wherein a target holder which is integrally tubular is arranged on the base, at least three connecting screws are arranged on the base, and the connecting screws are used for adjusting the connecting posture of the base and a surface to be marked; the column body of the dotting cone is inserted into the tube hole of the target base to form linear displacement matching with the tube hole along the axial direction of the target base, the cone tip of the dotting cone is positioned on the axis of the tube hole, the hole end of the tube hole, which is far away from the base, is a positioning concave surface I with a small lower part and a large upper part, the target ball and the positioning concave surface I form abutting type positioning matching, and the center of the target ball is positioned on the axis of the tube hole when the target ball and the positioning concave surface I are abutted and matched; the side wall of the target holder is provided with a level bubble.

Compared with the prior art, the utility model has the following technical effects: the laser tracker can be matched with a laser tracker to realize accurate positioning and dotting marking on a vertical surface, and high-accuracy positioning and installation of a precision instrument are realized.

Drawings

The contents of the description and the references in the drawings are briefly described as follows:

FIG. 1 is a front view of the present invention;

FIG. 2 is a cross-sectional view C-C of FIG. 1;

FIG. 3 is a front view of the present invention in engagement with a target ball;

FIG. 4 is a top view of the present invention in engagement with a target ball;

FIG. 5 is a front view of the present invention in engagement with a dotting cone;

fig. 6 is a cross-sectional view taken along line D-D in fig. 5.

In the figure: 10. the water level gauge comprises a base, 11 positioning holes, 12 positioning concave surfaces II, 13 round water bubbles, 20 target holders, 21 pipe holes, 22 positioning concave surfaces I, 23 water level bubbles and 24 positioning concave surfaces III.

Detailed Description

The following description of the embodiments of the present invention will be made in detail with reference to the accompanying drawings.

Example one

A positioning device comprises a base 10, wherein a target holder 20 which is integrally tubular is arranged on the base 10, at least three connecting screws 30 are arranged on the base 10, and the connecting screws 30 adjust the connecting posture of the base 10 and a surface to be marked. In the embodiment, as shown in fig. 3 and 4, the base 10 is a circular plate, the target holder 20 is disposed in the middle of the base 10, and 3 connection screws 30 are disposed on the base 10 at intervals in the circumferential direction of the ring target holder 20.

The pipe hole 21 in the middle of the target holder 20 is used for accommodating the column body of the dotting cone a, and when the column body of the dotting cone a is inserted into the pipe hole 21, the pipe hole 21 and the dotting cone a form linear displacement fit along the axial direction of the pipe hole 21. The end of the tube hole 21 far away from the base 10 is a positioning concave surface I22 with a small lower part and a large upper part, and the positioning concave surface I22 and the target ball B form abutting positioning fit. When the dotting awl A is inserted into the pipe hole 21, the awl tip of the dotting awl A is located on the axis of the pipe hole 21, and when the target ball B is abutted and matched with the first positioning concave surface 22, the sphere center of the target ball B is located on the axis of the pipe hole 21, so that the accuracy of a marking point on a surface to be marked by the dotting awl A can be guaranteed. In the embodiment shown in fig. 2, the first positioning concave surface 22 is a spherical surface conforming to the outer contour of the target ball B, the center of the spherical surface is located on the axial center line of the tube hole 21, and the target ball B and the first positioning concave surface 22 form surface fit when abutting against each other.

The side wall of the target holder 20 is provided with a level bubble 23, when the surface to be marked is a vertical surface, the postures of the base 10 and the vertical surface to be marked are adjusted, so that the bubbles in the level bubble 23 are arranged in the center, the hole core of the pipe hole 21 is considered to be horizontally arranged, when the target holder is used, external force is applied to maintain the target ball B and the positioning concave surface I22 to be abutted to match the postures, and the positioning device can be used for positioning and dotting of the vertical surface.

In this embodiment, in order to avoid the assembling error from affecting the fitting precision of the tube hole 21 and the dotting cone a, the target holder 20 and the base 10 are integrally formed.

Example two

The difference between this embodiment and the first embodiment is that the first positioning concave surface 22 is a conical surface arranged concentrically with the pipe hole 21, as shown in fig. 6, so that the first positioning concave surface 22 can be matched with a plurality of spherical parts with different outer diameter sizes, and when the two are matched, the spherical centers of the spherical parts are both positioned on the conical surface and the axial center of the pipe hole 21.

EXAMPLE III

The difference between the present embodiment and the first embodiment is that the base 10 is provided with a round bubble 13. As shown in fig. 2, in the present embodiment, 3 circular blisters 13 are provided at equal intervals around the target holder 20, and the circular blisters 13 and the connection screws 30 are arranged in a staggered manner.

Example four

The difference between this embodiment and the first embodiment is that the target holder 20 is made of a magnetic material in order to conveniently and reliably maintain the connection posture of the target ball B and the target holder 20 when the target holder 20 is horizontally placed. Because the target holder 20 and the base 10 are integrally formed, and the base 10 is made of a magnetic material, the base 10 can be attracted with the magnetic vertical surface to be marked, and the positioning device is prevented from falling and being damaged after the connecting screw 30 is separated from the vertical surface to be marked, so that the positioning precision of the positioning device is further influenced.

EXAMPLE five

The difference between the first embodiment and the second embodiment is that after the base 10 and the backing plate 20 are respectively formed, the base 10 and the backing plate 20 are fixedly connected to form a main structure of the positioning device, wherein the backing plate 20 is made of a magnetic material, and the base 10 can be made of a magnetic material or a non-magnetic material as required.

In this embodiment, as shown in fig. 2, a circular blister 13 is disposed on the base 10, a positioning hole 11 penetrating through the base is disposed in the middle of the base 10, a positioning concave surface two 12 with a small lower end and a large upper end is disposed at the upper end of the positioning hole 11, the target ball B and the positioning concave surface two 12 form a butting positioning fit, and the center of the target ball B is located on the axis of the positioning hole 11 when the target ball B and the positioning concave surface two 12 are butted and matched; the bottom end surface of the target holder 20 is a positioning convex surface three 24 which forms an abutting type positioning fit with the positioning concave surface two 12, and the positioning convex surface three 24 is a convex surface which is matched with the positioning concave surface two 12 and has a small lower part and a large upper part. In this way, the base 10 can be respectively matched with the target ball B and the dotting cone A to realize the positioning and dotting operation on the transversely arranged surface to be marked; after the target holder 20 is fixedly connected to the base 10, the positioning and punching operation of the vertical surface to be marked can be realized by matching with the target ball B and the dotting cone A.

In this embodiment, in order to avoid the positioning of the dotting cone a being affected by the dislocation arrangement of the positioning holes 11 and the hole walls of the pipe holes 21 due to machining or assembly errors, the minimum aperture of the positioning hole 11 is greater than or equal to the minimum aperture of the pipe hole 21.

EXAMPLE six

In order to improve the horizontal positioning accuracy of the base body of the target holder 20, three level bubbles 23 are arranged on the side wall of the target holder 20 at equal intervals along the circumferential direction thereof.

Claims

1. The utility model provides a positioner, includes base (10), is equipped with on base (10) and wholly is tube column's target seat (20), its characterized in that: at least three connecting screws (30) are arranged on the base (10), and the connecting screws (30) adjust the connecting posture of the base (10) and the surface to be marked;

the column body of the dotting cone (A) is inserted into the tube hole (21) of the target holder (20) to form linear displacement fit along the axial direction of the target holder, the cone tip of the dotting cone (A) is positioned on the axis of the tube hole (21),

the hole end of the pipe hole (21) far away from the base (10) is a positioning concave surface I (22) with a small lower part and a large upper part, the target ball (B) and the positioning concave surface I (22) form abutting type positioning fit, and the center of the target ball (B) is positioned on the axis of the pipe hole (21) when the target ball (B) and the positioning concave surface I (22) are abutted and matched;

the side wall of the target holder (20) is provided with a level bubble (23).

2. The positioning device of claim 1, wherein: the first positioning concave surface (22) is a conical surface which is concentrically arranged with the pipe hole (21).

3. The positioning device of claim 1, wherein: the first positioning concave surface (22) is a spherical surface which is matched with the outer contour of the target ball (B), and the center of the spherical surface is positioned on the axis of the pipe hole (21).

4. The positioning device according to any one of claims 1 to 3, wherein: the target holder (20) is made of magnetic material and is integrated with the base (10).

5. The positioning device of claim 4, wherein: the base (10) is provided with a round bubble (13).

6. The positioning device according to any one of claims 1 to 3, wherein: the target holder (20) is made of magnetic materials, and the base (10) made of non-magnetic materials is fixedly connected with the target holder (20).

7. The positioning device of claim 6, wherein: the round bubble (13) is arranged on the base (10), the positioning hole (11) penetrating through the base body is formed in the middle of the base body of the base (10), the upper end of the positioning hole (11) is a positioning concave surface II (12) with a small lower part and a large upper part, the target ball (B) and the positioning concave surface II (12) form abutting type positioning fit, and the ball center of the target ball (B) is positioned on the axis of the positioning hole (11) when the target ball (B) and the positioning concave surface II (12) are abutted and matched;

the bottom end face of the target holder (20) is a positioning convex surface III (24) which forms an abutting type positioning fit with the positioning concave surface II (12), and the minimum aperture of the positioning hole (11) is larger than or equal to the minimum aperture of the pipe hole (21).

8. The positioning device of claim 1, wherein: three level bubbles (23) are arranged on the side wall of the target holder (20) at equal intervals in the circumferential direction.