CN212553449U

CN212553449U - Positioning jig for three-dimensional measurement of multi-point positioning

Info

Publication number: CN212553449U
Application number: CN202020725808.7U
Authority: CN
Inventors: 黄培财
Original assignee: Yihe Precision Industry Weihai Co ltd
Current assignee: Yihe Precision Industry Weihai Co ltd
Priority date: 2020-04-30
Filing date: 2020-04-30
Publication date: 2021-02-19
Anticipated expiration: 2030-04-30

Abstract

The utility model provides a cubic unit of multiple spot location is measured and is used positioning jig, include: the base plate is of a frame structure shaped like a Chinese character 'tian'; the first positioning mechanism comprises a base, a rotary arm and a first support column, the base is fixedly arranged on a frame of the base plate, the rotary arm is rotatably arranged on the base, an elastic part is arranged between the rotary arm and a top cover of the base, a pressure rod is arranged at the end part of the rotary arm, the first support column is fixedly arranged on the base plate, and the bottom of the pressure rod abuts against the top surface of the first support column; the second positioning mechanism comprises a second supporting column and a pressing block, the second supporting column is fixedly arranged in the center of the bottom plate and made of ferromagnetic materials, and the pressing block is adsorbed on the second supporting column through an internal magnet; the reference column is fixedly arranged on the bottom plate. The utility model provides a positioning jig can fix a position the work piece simultaneously all around with central authorities, the work piece is fully positioned, guarantees measured data's accuracy.

Description

Positioning jig for three-dimensional measurement of multi-point positioning

Technical Field

The utility model relates to a positioning jig particularly, relates to a cubic unit of multiple spot location is measured and is used positioning jig.

Background

A three-dimensional measuring instrument is an instrument for measuring by three-dimensional point taking, and the main working principle is as follows: the measured object is placed in a three-dimensional measurement space, the coordinate positions of the measured points on the measured object can be obtained, and the geometric size, shape and position of the measured object are calculated according to the space coordinate values of the points.

The three-dimensional measuring instrument is generally equipped with a positioning fixture for fixing the position of the workpiece to be measured. The positioning jig is generally provided with a fixed positioning mechanism on the frame, when the positioning jig is used for positioning a workpiece, the periphery of the workpiece is limited, but the limitation on the center of the workpiece is lacked, the smooth positioning of the workpiece cannot be ensured, and the accuracy of data during measurement is influenced.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model provides a positioning jig is used in cubic unit measurement of multiple spot location can fix a position the work piece simultaneously all around with central authorities, fully positions the work piece, guarantees measured data's accuracy.

Therefore, the utility model provides a positioning jig is used in cubic unit measurement of multiple spot location, include:

the bottom plate is of a frame structure shaped like a Chinese character tian;

the first positioning mechanism comprises a base, a rotary arm and a first support column, the base is fixedly arranged on a frame of the base plate, the rotary arm is rotatably arranged on the base, an elastic part is arranged between the rotary arm and a top cover of the base, the end part of the rotary arm is provided with a pressure rod, the first support column is fixedly arranged on the base plate, and the bottom of the pressure rod abuts against the top surface of the first support column;

the second positioning mechanism comprises a second supporting column and a pressing block, the second supporting column is fixedly arranged in the center of the bottom plate and is made of a ferromagnetic material, and the pressing block is adsorbed on the second supporting column through an internal magnet;

and the reference column is fixedly arranged on the bottom plate.

Further, the height of the first support column is equal to the height of the second support column.

Further, the height of the first support column is smaller than the height of the reference column.

Further, the elastic member is a spring.

Furthermore, a plurality of pressing mechanisms are arranged on the bottom plate and comprise mounting seats and pressing bolts, the mounting seats are fixedly mounted on the bottom plate, the pressing bolts are fixedly mounted on the mounting seats, and the pressing bolts are parallel to the bottom plate.

Furthermore, a plurality of limiting columns are arranged on the bottom plate and are perpendicular to the bottom plate.

The utility model provides a pair of positioning jig is used in cubic unit measurement of multiple spot location places positioning jig on the cubic unit workstation during use, and positioning jig both sides are provided with the handle, conveniently remove, adjust positioning jig. The workpiece is placed on the first supporting column and the second supporting column, the rotating arm is rotated, the pressing rod on the rotating arm is abutted to the workpiece, and the spring is arranged between the rotating arm and the top cover of the base, so that the pressing rod can firmly position the workpiece. And placing a pressing block on the surface of the workpiece above the second supporting column, wherein the pressing block firmly positions the workpiece on the second supporting column under the action of the magnet. The first positioning mechanism positions the periphery of the workpiece, the second positioning mechanism positions the center of the workpiece, and the workpiece is firmly positioned. The reference column is used as a reference for ensuring the repeated positioning precision. And the limiting columns are arranged on the bottom plate and used for protecting the internal structure of the jig.

The utility model provides a pair of positioning jig is used in cubic unit measurement of multiple spot location can fix a position the work piece simultaneously all around with central authorities, abundant positioning workpiece guarantees measured data's accuracy.

Drawings

Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention. Also, like reference numerals are used to refer to like parts throughout the drawings. In the drawings:

fig. 1 is a schematic structural view of a positioning jig for three-dimensional measurement with multi-point positioning according to an embodiment of the present invention;

fig. 2 is a schematic structural view of a first positioning mechanism in a positioning fixture for three-dimensional measurement with multi-point positioning according to an embodiment of the present invention;

fig. 3 is a cross-sectional view of a pressing block in a positioning fixture for three-dimensional measurement with multi-point positioning according to an embodiment of the present invention.

Detailed Description

Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.

The first embodiment is as follows:

referring to fig. 1 to fig. 3, the drawings show a positioning fixture for three-dimensional measurement of multipoint positioning provided by the embodiment of the present invention, including:

the bottom plate 1 is of a frame structure shaped like a Chinese character tian;

the first positioning mechanism 2 comprises a base 21, a rotary arm 22 and a first support column 23, the base 21 is fixedly installed on the frame of the bottom plate 1, the rotary arm 22 is rotatably installed on the base 21, an elastic component 221 is arranged between the rotary arm 22 and a top cover 211 of the base 21, a pressure lever 24 is arranged at the end part of the rotary arm 22, the first support column 23 is fixedly installed on the bottom plate 1, and the bottom of the pressure lever 24 abuts against the top surface of the first support column 23;

the second positioning mechanism 3 comprises a second supporting column 31 and a pressing block 32, the second supporting column 31 is fixedly installed in the center of the bottom plate 1, the second supporting column 31 is made of a ferromagnetic material, and the pressing block 32 is adsorbed on the second supporting column 31 through an internal magnet 321;

and a reference column 4 fixedly installed on the base plate 1.

Specifically, referring to fig. 1 to 3, the height of the first support column 23 is equal to the height of the second support column 31.

Specifically, referring to fig. 1 to 3, the height of the first support column 23 is smaller than the height of the reference column 4.

Specifically, referring to fig. 1 to 3, the elastic member 221 is a spring.

Specifically, referring to fig. 1 to 3, a plurality of limiting posts 6 are disposed on the bottom plate 1, and the limiting posts 6 are perpendicular to the bottom plate 1.

Example two:

referring to fig. 1 to fig. 3, the positioning fixture for three-dimensional measurement of multipoint positioning according to the second embodiment of the present invention is shown in the drawings, and the present embodiment further adopts the following technical solutions as improvements on the basis of the above embodiments: the bottom plate 1 is provided with a plurality of pressing mechanisms 5, each pressing mechanism 5 comprises an installation base 51 and a pressing bolt 52, the installation base 51 is fixedly installed on the bottom plate 1, the pressing bolts 52 are fixedly installed on the installation base 51, and the pressing bolts 52 are parallel to the bottom plate 1.

In order to enable the positioning of the workpiece to be firmer, a plurality of pressing mechanisms are arranged on the bottom plate, the pressing bolts are rotated to enable the pressing bolts to move along the axial direction, the end parts of the pressing bolts are abutted against the side faces of the workpiece, and the force for fixing the workpiece can be controlled by rotating the pressing bolts.

It will be apparent to those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims and their equivalents, the present invention is also intended to include such modifications and variations.

Claims

1. The utility model provides a three-dimensional of multiple spot location is measured and is used positioning jig which characterized in that includes:

the bottom plate (1), the bottom plate (1) is of a frame structure shaped like Chinese character 'tian';

the first positioning mechanism (2) comprises a base (21), a rotating arm (22) and a first support column (23), the base (21) is fixedly installed on a frame of the base plate (1), the rotating arm (22) is rotatably installed on the base (21), an elastic component (221) is arranged between the rotating arm (22) and a top cover (211) of the base (21), a pressing rod (24) is arranged at the end part of the rotating arm (22), the first support column (23) is fixedly installed on the base plate (1), and the bottom of the pressing rod (24) abuts against the top surface of the first support column (23);

second positioning mechanism (3), including second support column (31) and briquetting (32), second support column (31) fixed mounting in the center of bottom plate (1), second support column (31) are made by ferromagnetic material, briquetting (32) pass through inside magnet (321) adsorb on second support column (31):

a reference column (4) fixedly mounted on the base plate (1).

2. The positioning jig for three-dimensional measurement of multipoint positioning according to claim 1, wherein the height of the first supporting column (23) is equal to the height of the second supporting column (31).

3. A multipoint positioning three-dimensional measuring positioning jig according to claim 1 or 2, characterized in that the height of the first support column (23) is smaller than the height of the reference column (4).

4. The positioning fixture for three-dimensional measurement of multi-point positioning according to claim 1, wherein the elastic member (221) is a spring.

5. The positioning jig for the multi-point positioning three-dimensional measurement as recited in claim 1, wherein a plurality of pressing mechanisms (5) are disposed on the bottom plate (1), the pressing mechanisms (5) comprise mounting seats (51) and pressing bolts (52), the mounting seats (51) are fixedly mounted on the bottom plate (1), the pressing bolts (52) are fixedly mounted on the mounting seats (51), and the pressing bolts (52) are parallel to the bottom plate (1).

6. The positioning jig for the multi-point positioning three-dimensional measurement according to claim 1, wherein a plurality of limiting columns (6) are arranged on the bottom plate (1), and the limiting columns (6) are perpendicular to the bottom plate (1).