CN211576232U - Standard device of grating type indicating meter calibrating instrument - Google Patents

Abstract

The utility model discloses a standard device of a grating type indicating meter calibrator, comprising a calibrator main body, the end of the calibrator main body is provided with a calibrator side rod, and the end of the calibrator main body is provided with an inner diameter gauge fixture. The inner diameter gauge clamp is connected with a clamping device, an indicator or a lever gauge is installed on the clamping device, and a ribbed workbench is located on the upper surface of the calibrator host below the clamping device. A semi-cylindrical side block is placed above the ribbed worktable, so that under the joint action of all components, the influence of the radial force of the measuring rod on the indication value can be accurately obtained, and the indication value repeatability of the lever table can be accurately obtained. , and accurately obtain accurate values through repeatable values to meet actual operational needs.

Description

A standard device of grating type indicating meter calibrator

technical field

The utility model relates to the technical field of a grating type indicating meter calibrator, in particular to a standard device for a grating type indicating meter calibrator.

Background technique

With the progress of society and the rapid development of industry, the requirements for the accuracy and measurement accuracy of the indicator meter and lever meter instrument itself in the production and use of enterprises are getting higher and higher. The repeatability of indicator and lever gauges and the influence of the radial force of the indicator rod on the indicated value are important technical indicators for judging the measurement performance of the indicator and lever gauge. The accuracy and reliability of the indicator also plays an important role in the detection of the value error of the indicator and lever.

At present, indicator and lever table are divided into pointer indicator and digital display indicator. The pointer type indicator is a measuring instrument that uses the rotation of rack and gear or lever and gear to convert the linear displacement of the measuring rod into the angular displacement of the pointer; the digital indicating table is a measuring instrument that displays the linear displacement of the measuring rod in numbers. For this reason, we propose a standard device of grating type indicating meter calibrator.

Utility model content

(1) Technical problems solved

Aiming at the deficiencies of the prior art, the utility model provides a standard device of a grating type indicating meter calibrator, which solves the problems of the repeatability of the existing indicating meter and lever meter and the indication value of the radial force on the measuring rod of the indicating meter.

(2) Technical solutions

In order to achieve the above purpose, the utility model is realized through the following technical solutions: a standard device for a grating indicating meter calibrator, including a calibrator main body, the end of the calibrator main body is provided with a calibrator side bar, the calibrator An inner diameter gauge clamp is installed at the end of the main unit, a clamping device is connected to the inner diameter gauge clamp, an indicating gauge or a lever gauge is installed on the clamping device, and a lower part of the clamping device is located on the main body of the calibrator. A ribbed workbench on the surface with a semi-cylindrical side block placed above the ribbed workbench.

Preferably, the clamping device may be an indicator watch clamp or a lever watch clamp, the indicator watch clamp is used to clamp and fix the indicator watch, and the lever watch clamp is used to clamp and fix the lever watch.

Preferably, an inner diameter gauge is installed on the inner diameter gauge fixture.

Preferably, the side bar of the calibrator faces the clamping device, and the clamping device is located just above the ribbed workbench.

Preferably, support feet arranged in a matrix are installed on the bottom of the calibrator main body, and an installation space is preset on the upper part of the left end of the calibrator main body.

(3) Beneficial effects

The utility model provides a standard device of a grating type indicating meter calibrator. It has the following beneficial effects: under the joint action of each component, the influence of the radial force of the measuring rod on the indication value can be accurately obtained, and the repeatability of the indication value of the lever table can be accurately obtained. Accurate values are obtained to meet actual operational needs.

Description of drawings

Fig. 1 is the schematic diagram of the repeatability of the semi-automatic grating type indicating meter calibrator of the utility model calibrating the dial indicator indicating table;

2 is a schematic diagram of the influence of the radial force of the measuring rod of the indicating meter on the indicated value of the semi-automatic grating type indicating meter calibrator of the utility model;

FIG. 3 is a schematic diagram of the repeatability of a lever meter calibrating the semi-automatic grating indicating meter calibrator of the present invention.

In the picture: 1. Mainframe of the calibrator; 2. Fixture for the inner diameter meter; 3. Clamping device; 31. Indicator table; 32. Lever meter; 4. Ribbed workbench; piece.

Detailed ways

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the implementations. example. 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.

1-3, the present utility model provides a technical solution: a standard device of a grating indicating meter calibrator, comprising a calibrator main body 1, and the end of the calibrator main body 1 is provided with a calibrator side rod 5, An inner diameter gauge fixture 2 is installed on the end of the calibrator main body 1, and a clamping device 3 is connected to the inner diameter gauge fixture 2, and an indicating gauge 31 or a lever gauge 32 is installed on the clamping device 3. Below the tightening device 3 is a ribbed worktable 4 located on the upper surface of the calibrator main body 1 , and a semi-cylindrical side block 6 is placed above the ribbed worktable 4 .

In order to facilitate fixing, the clamping device 3 can be an indicator watch clamp or a lever watch clamp, the indicator watch clamp is used for clamping and fixing the indicator watch 31, the lever watch clamp is used for clamping and fixing the lever watch 32, and in the During installation, the axes of the indicator watch 31 and the lever watch 32 can be perpendicular to the ribbed workbench 4 .

In order to facilitate reading, an inner diameter gauge is installed on the inner diameter gauge fixture 2 .

In order to meet the operational requirements in the future, the side bar 5 of the calibrator is facing the clamping device 3 , and the clamping device 3 is located directly above the ribbed workbench 4 .

In order to make its support more stable, the bottom of the tester main body 1 is installed with support feet arranged in a matrix, so that it can be placed stably. The upper left end of the tester main body 1 is preset with an installation space, so that it can be reserved There is enough space for installation and operation.

1. Repeatability of the indicator table

Embodiment 1:

Install the indicator gauge on the inner diameter gauge fixture 2, so that the axis of the measuring rod of the indicator gauge 31 is perpendicular to the ribbed workbench 4, and at the beginning, middle, and end positions of the indicator gauge measurement range, respectively adjust the large pointer to align with a certain position. For one division or a certain value, use the same force to lift the indicator rod 5 times, and the difference between the maximum value and the minimum value in the 5 times is the repeatability of the indicator at the detection position of the indicator (see Figure 1 for the description of the drawings). shown).

which is:

A _Max --- maximum value;

A _Min --- the minimum value.

A _Max - A _Min = A _{repeatability}

This test is also carried out in the middle and last two positions of the measurement range, and the maximum value of the three values is taken as the repeatability of the indicator.

Implementation 2:

Put the lever table 32 on the lever table fixture so that the axis of the probe of the lever table 32 is parallel to the table surface of the ribbed table 4, then put the semi-cylindrical side block 6 on the ribbed table 4, and adjust the probe of the lever table 32 Contact with the highest point of the bus bar of the semi-cylindrical side block 6. At this time, the position of the pointer of the lever meter 32 is roughly at the midpoint of the range, and move forward and backward in the same direction on the ribbed worktable 4 along the vertical direction of the bus bar of the semi-cylindrical side block 6. The semi-cylindrical side block 5 times, each time the highest point of the semi-cylindrical side block 6 contacts the probe of the lever meter 32 and the maximum value (turning point) occurs, read the value, and take the maximum value and the minimum value among the 5 times. The difference is the repeatability of the indicated value of the lever table in this direction (see Figure 3 in the description of the drawings).

which is:

A _Max --- maximum value;

A _Min --- the minimum value.

A _Max - A _Min = A _{repeatability}

The repeatability of the lever table should be detected in the two acting directions of the probe respectively, and the maximum value of the detected values in the two directions is taken as the repeatability of the lever table.

2. The influence of the radial force of the measuring rod of the indicator on the indication value

Install the indicator meter 31 on the table fixture so that the axis of the measuring rod of the indicator meter 31 is perpendicular to the ribbed table 4, and place a semi-cylindrical side block 6 between the indicator meter probe and the ribbed table 4, and adjust the indicator table. At the starting position of the measuring range, contact with the highest position of the cylindrical surface busbar of the semi-cylindrical side block 6, and move the semi-cylindrical side at the front, rear, left and right positions of the indicator table along the vertical direction of the cylindrical surface busbar of the semi-cylindrical side block 6. Each block is twice, and each time when the highest point of the bus bar 6 on the side of the semi-cylindrical block is in contact with the probe of the indicator table, the maximum value (turning point) occurs, and the value is read. Among the 8 values, the difference between the maximum value and the minimum value is taken as The influence of the radial force of the point measuring rod on the indicated value (see Figure 2 in the description of the drawings).

which is:

B _Max --- maximum value;

B _Min --- Minimum value.

Influence of B _Max - B _Min = B _indication

This test is also carried out at the middle and last two positions of the measuring range, and the maximum value of the three positions is taken as the influence of the radial force of the measuring rod of the indicating meter on the indicating value.

It should be noted that, in this document, relational terms such as first and second are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any relationship between these entities or operations. any such actual relationship or sequence exists. Moreover, the terms "comprising", "comprising" or any other variation thereof are intended to encompass a non-exclusive inclusion such that a process, method, article or device that includes a list of elements includes not only those elements, but also includes not explicitly listed or other elements inherent to such a process, method, article or apparatus. without more restrictions. An element defined by the phrase "comprising an... does not preclude the presence of additional identical elements in a process, method, article or apparatus comprising said element".

Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes and modifications can be made to these embodiments without departing from the principles and spirit of the present invention , alternatives and modifications, the scope of the present invention is defined by the appended claims and their equivalents.

Claims (5)

1. The utility model provides a grating formula indicating gauge examination appearance standard device, includes examination appearance host computer (1), its characterized in that: the utility model discloses a calibrating device, including calibrating apparatus host computer (1), inside diameter table anchor clamps (2) are installed to the tip of calibrating apparatus host computer (1), be connected with clamping device (3) on inside diameter table anchor clamps (2), install instruction list (31) or lever table (32) on clamping device (3), the below of clamping device (3) is equipped with and is located banding workstation (4) on calibrating apparatus host computer (1) upper surface, semicylinder lateral block (6) have been placed to banding workstation (4) top.

2. A grating type dial gauge calibration device according to claim 1, characterized in that: the clamping device (3) can be an indicator clamp or a lever meter clamp, the indicator clamp is used for clamping and fixing the indicator (31), and the lever meter clamp is used for clamping and fixing the lever meter (32).

3. A grating type dial gauge calibration device according to claim 1, characterized in that: and the inner diameter meter clamp (2) is provided with an inner diameter meter.

4. A grating type dial gauge calibration device according to claim 1, characterized in that: the calibrating instrument side rod (5) is right opposite to the clamping device (3), and the clamping device (3) is located right above the ribbed workbench (4).

5. A grating type dial gauge calibration device according to claim 1, characterized in that: the bottom of the calibrating instrument host (1) is provided with support pads arranged in a matrix, and the upper part of the left end of the calibrating instrument host (1) is preset with an installation space.

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