CN215952598U

CN215952598U - Comprehensive angle calibrating device

Info

Publication number: CN215952598U
Application number: CN202122052649.6U
Authority: CN
Inventors: 汤江文; 彭元辉; 薛靓; 谢开强; 杨毓军; 蒋丽; 杨桩
Original assignee: National Institute Of Measurement And Testing Technology Machinery Research Institute
Current assignee: National Institute Of Measurement And Testing Technology Machinery Research Institute
Priority date: 2021-08-27
Filing date: 2021-08-27
Publication date: 2022-03-04
Anticipated expiration: 2031-08-27

Abstract

The utility model discloses a comprehensive angle calibrating device, relates to the field of detection, solves the problem that the existing device is inconvenient to calibrate and maintain, and has the technical scheme that: the comprehensive angle calibrating device comprises a base, wherein a plurality of mounting positions are arranged on the base, a light pipe is arranged on each mounting position, and the light pipes are connected with the mounting positions through a three-axis displacement table. The aim of conveniently maintaining the calibration light pipe is achieved.

Description

Comprehensive angle calibrating device

Technical Field

The utility model relates to an angle calibrating instrument, in particular to a comprehensive angle calibrating device.

Background

The theodolite is a common device for measuring a pitch angle and a horizontal angle, and is widely applied to the fields of topographic survey of building construction and the like. The accuracy of the theodolite is affected by abrasion in the using process, so that the theodolite needs to be periodically verified. An angle calibrator is required at this time. The vertical angle of a common angle calibrator is generally calibrated to be +/-30 degrees with the precision of 1'. A larger angle of pitch cannot be verified. However, to enlarge the calibration angle, the light pipes need to be distributed on a larger sector, and the structure of the existing theodolite is adopted, so that very high machining precision is inevitably required, and the machining precision cannot be borne by a detection company. There is therefore a need for improvements in the construction of assay devices. In addition, in the use process of the existing theodolite, the detection precision is influenced by the tiny displacement of the light pipe, and if the light pipe needs to be adjusted, the light pipe needs to be returned to a factory for maintenance, so that the theodolite is very inconvenient.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a comprehensive angle calibrating device, which achieves the aim of conveniently maintaining and calibrating a light pipe.

The technical purpose of the utility model is realized by the following technical scheme: the comprehensive angle calibrating device comprises a base, wherein a plurality of mounting positions are arranged on the base, a light pipe is arranged on each mounting position, and the light pipes are connected with the mounting positions through a three-axis displacement table.

By adopting the scheme, the position of the light pipe can be adjusted through the three-axis displacement table, so that the axis of the light pipe meets the corresponding verification requirement. Due to the existence of the three-axis displacement table, the processing requirement on the base is not high, and the cost can be borne by enterprises. And the three-axis displacement table can be adjusted in place without returning to the factory during maintenance under the help of a calibration instrument by adjusting the three-axis displacement table.

Further, the base is connected with the ground through a plurality of lifting screws.

Through the scheme, the lifting screw rod can be conveniently adjusted, and the device is easier to level.

Further, the light pipes comprise a horizontal light pipe, a maximum depression angle light pipe and a maximum elevation angle light pipe; the axes of the light pipes are positioned on the same plane, and the included angle between the maximum depression angle light pipe and the axis of the maximum elevation angle light pipe is more than 60 degrees.

By adopting the scheme, a greater angle can be detected for the theodolite.

Furthermore, the included angle between the horizontal light pipe and the axis of the maximum elevation light pipe is more than 30 degrees.

Further, the included angle between the horizontal light pipe and the axis of the maximum depression angle light pipe is more than 30 degrees.

Furthermore, the mounting position is provided with a mounting plate, and the mounting plate is connected with the mounting position through a lifting screw rod; the three-axis displacement table is arranged on the mounting plate, and the light pipe is fixed on the three-axis displacement table.

By the scheme, the pitching angle of the light pipe can be adjusted, and the precision of the adjusting device is facilitated.

Further, the axes of the light pipes intersect at a point.

Furthermore, the device also comprises a liftable verification platform which is arranged on the base.

Further, the axis of the certification stand intersects the axis of the light pipe at a point.

Furthermore, a high-precision index dial is arranged on the verification table.

The high-precision index scale is matched with the level light pipe, so that the level angle of the theodolite can be calibrated.

In conclusion, the utility model has the following beneficial effects: the orientation of the light pipe can be conveniently adjusted through the three-axis displacement table. When the light pipe is slightly displaced by external force, the light pipe does not need to return to a factory, and the calibration platform can be calibrated only by adopting a related calibration device and adjusting the three-axis displacement platform. And because the three-axis displacement table passes through the mounting plate with the lifting screw rod, the pitch angle of the light pipe can be adjusted, and the device can be calibrated more conveniently. The precision of the device can reach 0.1' by adjusting the lifting screw rod and the three-axis displacement table.

Drawings

FIG. 1 is a schematic view of an embodiment

FIG. 2 is a schematic view of the installation of the light pipe of the embodiment

In the figure: 1. a base; 11; a lifting screw; 2. an installation position; 21. mounting a plate; 22. a lifting screw rod; 23. a three-axis displacement stage; 3. a light pipe; 31. a horizontal light pipe; 32. an elevation light pipe; 33. a maximum elevation light pipe; 34. a depression angle light pipe; 35. a maximum depression angle light pipe; 4. a verification platform; 41. a high precision scale.

Detailed Description

In order to make the technical problems, technical solutions and advantageous effects to be solved by the present invention more clearly apparent, the present invention is further described in detail below with reference to the accompanying drawings and embodiments.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected" to another element, it can be directly or indirectly connected to the other element, and the "connection" does not limit the fixed connection or the movable connection, and the specific connection mode should be determined according to the specific technical problem to be solved.

It will be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like, as used herein, refer to an orientation or positional relationship indicated in the drawings that is solely for the purpose of facilitating the description and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and is therefore not to be construed as limiting the utility model.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

Example (b):

the comprehensive angle calibrating device comprises a base 1, wherein three sets of lifting screw rods 11 are arranged below the base 1, and three sets of lifting nuts form an isosceles triangle. The base 1 is provided with a plurality of mounting positions 2; the mounting position 2 is provided with a mounting plate 21, and the mounting plate 21 is connected with the mounting position 2 through three lifting screw rods 22; the three nuts also form an isosceles triangle. The mounting plate 21 is provided with a triaxial displacement table 23, and the light pipe 3 is fixed on the triaxial displacement table 23 through a hoop.

The embodiment has five mounting positions 2, each mounting position 2 is provided with a light pipe 3, and the axes of the five light pipes 3 are distributed on the same fan-shaped plane. The light pipe 3 is a collimator and uses a laser light source. In principle, the light ray coincides with the axis. Due to the influence of the processing accuracy, there is a possibility that the light does not coincide with the axis, and in this case, the axis refers to the light. The same is true for the central axis of the claims.

The five light pipes 3 in this embodiment are respectively:

the horizontal light pipe 31, the axis of the horizontal light pipe 31 is parallel to the horizontal plane;

the included angle between the depression angle light pipe 34 and the horizontal light pipe 31 is 30 +/-1 degrees;

the included angle between the maximum depression angle light pipe 35 and the horizontal light pipe 33 is 60 +/-1 degrees;

the included angle between the elevation light pipe 32 and the horizontal light pipe 31 is 30 +/-1 degrees;

the maximum elevation light pipe 33, the included angle between the maximum elevation light pipe 33 and the horizontal light pipe 31 is 60 +/-1 degree;

the base 1 is also provided with a liftable calibration platform 4, the calibration platform 4 is provided with a high-precision index plate 41, and the axis of the index plate and the axis of the light pipe 3 are positioned on the same plane.

The working principle is as follows:

the device is kept in a horizontal state by adjusting the lifting screw 11 on the base 1. The lifting screw rod 22 and the three-axis displacement table 23 on the adjusting and mounting plate 21 enable the axes of the light pipes 3 to be positioned on the same plane and to be converged into one point. Locking each adjustment device. The angle between the axes is measured as a known value by a calibration device. The theodolite to be calibrated is placed on the base 1, after centering and leveling, the calibration stand 4 is lifted, and the cross in the ocular lens is aligned with the light of the horizontal light pipe 31. And locking the verification table 4, and sequentially aligning the ocular lens with the other light pipes 3 to determine corresponding angle values to obtain an observed value. And calculating to obtain a vertical deviation value. And rotating the high-precision index plate on the verification table 4 to a certain angle, and rotating the horizontal light tube 31 axis of the eyepiece to obtain a horizontal observation value. And calculating the horizontal deviation value together with the angle of the high-precision index plate on the verification table 4.

The precision of the device can be achieved, the main reason is that compared with the prior art, the distance between the light pipe and the theodolite to be detected is longer, and when the angle is measured, the longer the edge distance is, the higher the measuring accuracy is.

The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications of the present embodiment without inventive contribution as needed after reading the present specification, but all of them are protected by patent law within the scope of the claims of the present invention.

Claims

1. Synthesize angle calibrating installation contains base (1), is provided with a plurality of installation positions (2) on base (1), all is provided with light pipe (3), characterized by on every installation position (2): the light pipe (3) is connected with the mounting position (2) through a three-axis displacement table (23).

2. A comprehensive angle verification device as claimed in claim 1, wherein: the base (1) is connected with the ground through a plurality of lifting screw rods (11).

3. A comprehensive angle verification device as claimed in claim 1, wherein: the light pipe (3) comprises a horizontal light pipe (31), a maximum depression angle light pipe (35) and a maximum elevation angle light pipe (33); the axes of the light pipes (3) are positioned on the same plane, and the included angle between the maximum depression angle light pipe (35) and the axis of the maximum elevation angle light pipe (33) is more than 60 degrees.

4. A comprehensive angle verification device as claimed in claim 3, wherein: the included angle between the horizontal light pipe (31) and the axis of the maximum elevation light pipe (33) is more than 30 degrees.

5. A comprehensive angle verification device as claimed in claim 3, wherein: the included angle between the horizontal light pipe (31) and the axis of the maximum depression angle light pipe (35) is more than 30 degrees.

6. A comprehensive angle verification device as claimed in claim 1, wherein: the mounting position (2) is provided with a mounting plate (21), and the mounting plate (21) is connected with the mounting position (2) through a lifting screw rod (22); the three-axis displacement table (23) is arranged on the mounting plate (21), and the light pipe (3) is fixed on the three-axis displacement table (23).

7. A comprehensive angle verification device as claimed in claim 1, wherein: the axes of the light pipes (3) intersect at a point.

8. A comprehensive angle verification device as claimed in claim 7, wherein: the device is characterized by further comprising a liftable verification platform (4), wherein the verification platform (4) is arranged on the base (1).

9. A comprehensive angle verification device as claimed in claim 8, wherein: the axis of the verification platform (4) and the axis of the light pipe (3) intersect at a point.

10. A comprehensive angle verification device as claimed in claim 9, wherein: the calibration stand (4) is provided with a high-precision scale (41).