CN211346830U - A calibration test platform - Google Patents

Abstract

The utility model relates to an inertial measurement unit's demarcation technical field, concretely relates to calibration test platform. Including the operation face, and set up the installation mechanism of setting for the position on the operation face, installation mechanism receives the drive upset of actuating mechanism to reset after setting for the angle set for the position, or receive actuating mechanism's drive rotates around fixed rotating shaft, installation mechanism internal fixation is equipped with the measured object. The utility model discloses a mark test platform simple structure, simple to operate, and with low costs, easy operation can be applied to the development stage or the calibration test in test stage, is suitable for more extensively.

Description

A calibration test platform

technical field

The utility model relates to the technical field of calibration of inertial measurement units, in particular to a calibration test platform.

Background technique

The inertial measurement unit is a device used to measure the angular velocity and acceleration of an object in three-dimensional space, and then calculate the attitude of the object. Inertial measurement units are mostly used in equipment that requires motion control, such as automobiles and robots, and are also used in applications that require precise displacement estimation with attitude, such as inertial navigation equipment for submarines, aircraft, missiles, and spacecraft. The inertial measurement unit is directly and fixedly installed in the equipment. Due to the change of internal device parameters, stress release and installation errors, there will be certain errors in the parameters of the entire inertial measurement unit. In order to ensure its use accuracy, it needs to be calibrated.

At present, the existing calibration equipment and calibration devices are mostly large-scale automation equipment, which uses servo motors to achieve precise angular position rotary feed, but the price is very expensive, the operation is cumbersome and the maintenance is inconvenient; Reservation of test time has great constraints on test time and test progress.

Utility model content

Therefore, the utility model provides a calibration test platform with simple structure, light weight, convenient installation and easy operation.

In order to solve the above problems, the calibration test platform of the present invention includes an operation surface, and an installation mechanism arranged at a set position on the operation surface. Said setting position, or is driven by said driving mechanism to rotate around a fixed rotating shaft, and said installation mechanism is fixedly provided with a measured piece.

The operation surface is arranged horizontally, the installation mechanism is arranged vertically, and the operation surface and the installation mechanism arranged at the set position constitute a three-dimensional coordinate system.

The operating surface is provided with a positioning boss against which the mounting mechanism abuts.

A positioning mark is marked on the positioning boss and/or the operation surface.

It also includes a base disposed under the operation surface to support the operation surface, and a leveling mechanism is installed on the base.

The leveling mechanism is a plurality of leveling top wires arranged evenly under the operating surface, and the upper ends of the leveling top wires are in contact with the operating surface.

The installation mechanism includes an installation frame and a pressing block arranged in the installation frame, the pressing block and the side wall of the installation frame fix the measured object.

The mounting frame is a regular hexahedron.

Protrusions protruding perpendicular to the surface are provided at the corners of either side of the mounting frame.

The operation surface is a marble board, and lubricating alcohol is provided on the marble board.

The technical scheme of the utility model has the following advantages:

1. The calibration test platform of the present utility model comprises an operation surface and an installation mechanism arranged at a set position on the operation surface. position, or is driven by the driving mechanism to rotate around a fixed axis of rotation, and a measured piece is fixed in the mounting mechanism. The calibration test platform of the utility model has the advantages of simple structure, convenient installation, low cost and easy operation, can be applied to the calibration test in the development stage or the test stage, and is more widely applicable.

2. The calibration test platform of the present utility model is composed of the operating surface and the installation mechanism arranged at the set position to form a three-dimensional coordinate system, the structure of forming the three-dimensional coordinate system is simple, and the use of the three-dimensional coordinate system is convenient for calibration and data. Record.

3. The calibration test platform of the present invention, the positioning bosses and the positioning marks are arranged so that the installation mechanism can be reset to the set position after being driven by the drive mechanism to flip the set angle, so that the calibration is more accurate.

4. In the calibration test platform of the present invention, a plurality of leveling top wires facilitate the leveling of the operation surface, which makes the operation of the calibration test platform simpler.

5. In the calibration test platform of the present utility model, the mounting frame is a frame structure, which makes the overall calibration test platform more lightweight, easier to operate, and reduces the driving force of the driving mechanism, so that the mounting frame can be turned and wound manually. Fixed shaft rotation.

6. The calibration test platform of the present utility model is provided with protrusions to reduce the wear and tear on the mounting frame during the test process.

Description of drawings

In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the accompanying drawings that need to be used in the description of the specific embodiments or the prior art. Obviously, the following descriptions The accompanying drawings are some embodiments of the present invention. For those of ordinary skill in the art, other drawings can also be obtained based on these drawings without creative efforts.

Fig. 1 is the structural representation of the calibration test platform of the present utility model;

Fig. 2 is the structural representation of the installation mechanism of the present invention;

Description of reference numbers:

1-operating surface; 2-installation mechanism; 3-measured part; 4-positioning boss; 5-base; 6-leveling top wire; 7-installation frame; 8-pressing block; 9-protrusion.

Detailed ways

The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are a part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that, unless otherwise expressly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense, for example, it may be a fixed connection or a connectable connection. Detachable connection, or integral connection; may be mechanical connection or electrical connection; may be direct connection, or indirect connection through an intermediate medium, or internal communication between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood in specific situations.

In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as there is no conflict with each other.

The calibration test platform in this embodiment, as shown in FIG. 1 and FIG. 2 , includes an operation surface 1 , and an installation mechanism 2 arranged at a set position on the operation surface 1 .

The operating surface 1 is provided with a positioning boss 4 against which the mounting mechanism 2 abuts, and in order to demarcate the set position, the positioning boss 4 and the operating surface 1 are also marked with As for the positioning marks, if only marking the positioning marks on the positioning boss 4 or the operation surface 1 is sufficient to meet the usage requirements, the positioning marks can also be provided only on any of the two positions.

In order to facilitate calibration, the calibration test platform in this embodiment is set horizontally, and a base 5 supporting the operation surface 1 is provided under the operation surface 1 , and a leveling mechanism is installed on the base 5 . The leveling mechanism can be selected according to the needs of use. In this embodiment, the leveling mechanism selects a leveling top wire 6, and a plurality of leveling top wires 6 are evenly arranged under the operation surface 1. The upper end of the wire 6 is in contact with the operation surface 1 . As shown in FIG. 1 , there are 4 leveling top wires 6 , and of course, 3 or 5 can also be provided.

The material of the operation surface 1 is a marble slab, and in order to reduce the wear and friction of the marble during the test, lubricating alcohol is provided on the marble slab.

The installation mechanism 2 includes an installation frame 7 and a pressure block 8 arranged in the installation frame 7 , and the pressure block 8 and the side wall of the installation frame 7 fix the measured object 3 . In the way in which the pressure block 8 and the side wall of the mounting frame 7 jointly fix the measured object 3, only changing the structure and size of the pressure block 8 can make the measured object 3 of various specifications be installed on the measuring object 3. The measurement is carried out in the mounting frame 7, the calibration test platform has a wider application range, and the use cost is lower.

In order to facilitate the calibration of the object to be measured 3, the mounting bracket 7 is set as a regular hexahedron. In order to ensure the test accuracy requirements, the accuracy of the mounting frame 7 must be high, and during the use of the mounting frame 7, the wear and tear will be unavoidable. Therefore, in order to reduce the wear and tear of the mounting frame 7 during the test, the installation There are protrusions 9 protruding perpendicular to the surface at the corners of either side of the frame 7 . As shown in FIG. 2 , four protrusions 9 are provided on each of the six surfaces of the mounting frame 7 , and they are evenly arranged in the surface, and the four protrusions 9 in any one side can be arranged at different positions. Are not the same.

In this embodiment, the operation surface 1 is arranged horizontally, the installation mechanism 2 is arranged vertically, and the operation surface 1 and the installation mechanism 2 arranged at the set position constitute a three-dimensional coordinate system. During the test, the mounting mechanism 2 should be driven by the drive mechanism to turn over a set angle and then reset to the set position, or be driven by the drive mechanism to rotate around a fixed axis of rotation.

The drive mechanism may be a combination of a drive motor and a drive platform in the prior art. Due to the light weight of the calibration test platform in this embodiment, the required driving force of the driving installation mechanism 2 to flip or rotate is small. Therefore, the installation mechanism 2 can also be manually driven to flip or rotate, and manual driving can make the calibration test The cost of the platform is lower and the usage is more flexible.

When the calibration test platform is in use, first adjust the operation surface 1 to the level, set a warning area, and prohibit random touch, which will affect the levelness of the operation surface 1, resulting in poor test accuracy; introduce a small amount of alcohol on the operation surface 1, let Alcohol has a lubricating effect; after fixing the measured part 3 to the mounting frame 7, place the installation mechanism 2 at the set position of the operation surface 1; energize the measured part 3, turn the driving mechanism or rotate the installation mechanism 2 to perform test.

The calibration test platform in this embodiment has the advantages of simple structure, convenient installation, low cost, and easy operation, and can be applied to the calibration test in the development stage or the test stage.

Obviously, the above-mentioned embodiments are only examples for clear description, and are not intended to limit the implementation manner. For those of ordinary skill in the art, changes or modifications in other different forms can also be made on the basis of the above description. There is no need and cannot be exhaustive of all implementations here. And the obvious changes or changes derived from this are still within the protection scope of the present invention.

Claims (10)

1. A calibration test platform, characterized in that it comprises an operating surface (1), and a mounting mechanism (2) arranged at a set position on the operating surface (1), and the mounting mechanism (2) is driven by a driving mechanism The drive of the device (2) is reset to the set position after turning over the set angle, or it is driven by the drive mechanism to rotate around a fixed rotating shaft, and a measured piece (3) is fixed in the mounting mechanism (2). 2 . The calibration test platform according to claim 1 , wherein the operation surface (1) is arranged horizontally, the installation mechanism (2) is arranged vertically, and the operation surface (1) and the The mounting mechanism (2) of the set position constitutes a three-dimensional coordinate system. 3 . The calibration test platform according to claim 1 , wherein a positioning boss ( 4 ) against which the mounting mechanism ( 2 ) abuts is provided on the operation surface ( 1 ). 4 . 4. The calibration test platform according to claim 3, characterized in that, a positioning mark is marked on the positioning boss (4) and/or on the operation surface (1). 5. The calibration test platform according to any one of claims 1-4, characterized in that it further comprises a base (5) arranged under the operation surface (1) to support the operation surface (1), so that A leveling mechanism is installed on the base (5). 6 . The calibration test platform according to claim 5 , wherein the leveling mechanism is a plurality of leveling top wires ( 6 ) that are evenly arranged under the operating surface ( 1 ). 6 . The upper end of the flat top wire (6) is in contact with the operating surface (1). 7. The calibration test platform according to any one of claims 1-4, characterized in that, the mounting mechanism (2) comprises a mounting bracket (7), and a pressure plate arranged in the mounting bracket (7) A block (8), the pressing block (8) and the side wall of the mounting bracket (7) fix the measured piece (3). 8 . The calibration test platform according to claim 7 , wherein the mounting frame ( 7 ) is a regular hexahedron. 9 . 9 . The calibration test platform according to claim 8 , wherein a protrusion ( 9 ) protruding perpendicular to the surface is provided at a face angle of any one side of the mounting bracket ( 7 ). 10 . 10 . The calibration test platform according to claim 9 , wherein the operation surface ( 1 ) is a marble board, and lubricating alcohol is provided on the marble board. 11 .

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