What are the six parts of the structure of a vernier caliper?

The structure of vernier caliper is composed of ruler body (main ruler), inner measuring claw, ruler cabinet, fastening screw, depth ruler, vernier (sub-ruler) outer measuring claw. Consists of six parts.

The main ruler is generally in millimeters, and the vernier has or 50 sub-grids, according to the different sub-grids, vernier calipers can be divided into ten-degree vernier calipers, twenty-degree vernier calipers, fifty-degree vernier calipers, etc., the vernier is 10 divisions of 9mm, 20 divisions of 19mm, 50 divisions of 49mm.

There are two sets of movable measuring jaws on the main ruler and vernier of the vernier caliper, which are the inner measuring claw and the outer measuring claw, the inner measuring claw is usually used to measure the inner diameter, and the outer measuring claw is usually used to measure the length and outer diameter.

There is a fastening screw on the upper part of the vernier to fix the vernier anywhere on the ruler body. The ruler body and the vernier have measuring jaws, the width of the groove and the inner diameter of the tube can be measured by the inner measuring jaw, and the thickness of the part and the outer diameter of the tube can be measured by the outer measuring jaw. The depth gauge is connected to the vernier ruler to measure the depth of the groove and the cylinder.

There are scales on both the ruler and the vernier ruler. Take the vernier caliper accurate to the millimeter as an example, the minimum division on the ruler body is 1 mm, and there are 10 small equal divisions on the vernier ruler, with a total length of 9 mm, and each division is millimeters, which is a millimeter difference from the minimum division on the main ruler.

The structure of the vernier caliper is composed of six parts: the main ruler, the vernier, the outer measuring jaw, the inner measuring jaw, the depth rod and the nut.

1) Main ruler: used to read the corresponding value of the vernier ruler scale mark, generally in millimeters;

2) Vernier: used to read the number of scales on the vernier ruler that aligns with a certain tick mark on the main ruler, and there are three kinds of readings according to different reading values;

3) Outer measuring claw: usually used to measure length and outer diameter;

4) Inner measuring jaw: usually used to measure the inner diameter;

5) Depth bar: usually used to measure depth;

6) Nut: used to fix the vernier ruler.

Vernier caliper is a high-precision measuring tool, which can directly measure the outer and inner diameter, length, width, height and depth of the workpiece.

The structure of the vernier caliper is mainly composed of six parts: the main ruler, the vernier ruler, the measuring claw (inner measuring claw and the outer measuring claw), the depth gauge and the fastening nut.

Main ruler: used to read the whole millimeter corresponding to the scale mark of the vernier ruler;

Vernier ruler: used to read the number of scales on the vernier ruler that aligns a certain tick mark on the main ruler;

Inner measuring jaw: used to measure the inner diameter;

Outer measuring jaw: used to measure the outer diameter;

Depth gauge: used to measure depth;

Fastening nut: used to fix the vernier ruler;

Main ruler: used to read the whole millimeter corresponding to the scale mark of the vernier ruler;

Vernier ruler: used to read the number of scales on the vernier ruler that aligns a certain tick mark on the main ruler;

Inner measuring jaw: used to measure the inner diameter;

Outer measuring jaw: used to measure the outer diameter;

Depth gauge: used to measure depth;

Fastening nut: used to fix the vernier ruler;

Here is a structural diagram of a vernier caliper.

Ruler body, inner measuring claw, outer measuring claw, fastening screw, vernier ruler, depth gauge.

The o(o.... found in the book

How to calculate the accuracy of a vernier caliper and what does it consist of? And what does he do?

The vernier caliper is composed of six parts: the main ruler, the vernier ruler, the measuring claw (inner measuring claw and the outer measuring claw), the depth gauge and the fastening nut.

The vernier caliper is composed of 6 parts: inner diameter measuring claw, fastening screw, depth gauge, outer diameter measuring claw, vernier ruler and main ruler, as shown in the figure below.

Generally, vernier calipers have 3 kinds of accuracy classification, namely: 10-index vernier calipers, whose accuracy is; 20-index vernier caliper, the accuracy of which is; 50 indexing vernier caliper, the accuracy of which is:

For example, the vernier caliper of 50 indexing scales has a total length of 49mm and is divided into 50 parts, and the length of each part is, which is different from the minimum scale of the main ruler, and the accuracy of this caliper is called.

Precautions for the use of vernier calipers.

1. Vernier calipers are more precise measuring tools, which should be handled with care, and should not collide or fall to the ground. Do not use it to measure rough objects when in use, so as not to damage the measuring jaw, and should be placed in a dry place when not in use to prevent corrosion.

2. When measuring the workpiece, the measuring surface of the foot must be parallel or perpendicular to the surface of the workpiece, and shall not be skewed. And the force should not be too large, so as not to deform or wear the stuck feet, which will affect the measurement accuracy.

3. When reading, the line of sight should be perpendicular to the ruler surface. If the reading needs to be fixed, the vernier can be fixed to the ruler body with a fastening screw to prevent sliding.

4. When measuring the inner diameter size, it should be gently swung in order to find out the maximum value.

5. After the vernier caliper is used up, wipe it carefully, smear it with protective oil, and lay it flat in the box to prevent rust or bending.

Vernier calipers.

1.Structure and main purpose of each part Vernier caliper is mainly composed of two parts, namely the main ruler and the vernier ruler. The names and main uses of the specific parts are:

Main ruler: used to read the whole millimeter corresponding to the scale mark of the vernier ruler; Vernier ruler: used to read the number of scales on the vernier ruler that aligns a certain tick mark on the main ruler; Inner measuring claw:

For measuring the inner diameter; Outer measuring jaw: used to measure the outer diameter; Depth gauge: used to measure depth; Fastening nut:

Used to fix the vernier ruler.

2.Principle.

1) Vernier caliper accuracy: Why vernier calipers measure accuracy up to mm, or even achievable.

mm, what about mm? It turned out that the vernier caliper cleverly used the difference between the minimum scale of the vernier ruler and the main ruler, if the 9 on the main ruler

mm is divided into 10 parts as the scale of the vernier ruler, then the difference between the length of each scale on the vernier ruler and each scale on the main ruler is mm, and in the same way, if the 19 mm and 49 on the main ruler are used

mm is divided into 20 parts and 50 parts respectively as the 20 scales and 50 scales on the vernier ruler, so the difference between the length of each scale on the vernier ruler and each scale on the main ruler is respectively.

mm、 mm.Therefore, the measurement accuracy of vernier calipers can reach mm, mm, mm(2) Reading principle: Take the 10-cent grid vernier caliper as an example, because its accuracy is.

mm, when measured less than 1

mm, the first few scale marks on the vernier ruler are aligned with a certain scale mark on the main ruler, then the zero scale line on the main ruler and the zero scale distance on the vernier ruler is a few tenths of a millimeter, and the measured length is a few tenths of a millimeter, as shown in Figure 1-2, the 6th scale mark on the vernier ruler is aligned with the scale on the main ruler, then the measured length is.

mm.When the measured length is greater than 1

mm, first read out the zero scale mark on the vernier ruler corresponds to the whole millimeter scale on the main ruler, and then read out the number of scales aligned with the main ruler on the vernier ruler according to the above method, after multiplying this number, add the two numbers to obtain the measured length. As shown in Figure 1-3, the reading on the master ruler is 29

mm, the 8th scale mark on the vernier ruler is aligned with the scale on the main ruler, so the measured length is 29+8 mm 3.Precautions (1) Before measuring, you should first see the accuracy of the vernier caliper; (2) When measuring, the measuring claw should be gently clamped to the measured object, not too tight, and then the vernier caliper should be fixed with a fastening nut, and the final reading should be taken; (3) The line of the measured distance on the measured object must be parallel to the main ruler.

The construction of vernier calipers. It can detect internal and external aid, as well as depth. After the inspection, the accuracy is 0.02 millimeters. In the case of reading data, the number of the main ruler is added to the number of the secondary ruler.