Vernier caliper and use method thereof

Abstract

The invention discloses a vernier caliper and a use method thereof. The vernier caliper comprises a main ruler, a vernier, a sliding assembly and a positioning column; the sliding assembly is locatedbetween the vernier and the main ruler; the vernier slidingly sleeves the main ruler; the main ruler is provided with a ruler body guide rail; the ruler body guide rail is matched with the sliding assembly; and the positioning column is arranged between the vernier and the main ruler and protrudes out from the vernier. The ruler body and the vernier of the vernier caliper can be in gapless fit with each other, so that the high-precision and stable linear movement of the ruler body and the vernier can be realized, and therefore, the stability and accuracy of measurement can be improved. The vernier caliper has the advantages of flexible structure design and convenience in installation and use.

Description

technical field [0001] The invention relates to the field of measuring instruments, in particular to a vernier caliper and a using method thereof. Background technique [0002] The vernier caliper is simple in structure, widely used, easy to use, can meet the measurement requirements of general precision, and is widely used in the production of various industries; taking the vernier caliper with a range of 0 to 150mm as an example, the existing vernier The vernier assembly slides on the main ruler. There is a spring piece between the vernier and the main ruler. The elastic force of the spring piece is adjusted by the screw stop pressure, so that there is a more suitable fit gap between the main ruler and the vernier. However, due to the main ruler and the vernier The components are loose fit during use, which directly affects the measurement accuracy. [0003] The larger the fit gap, the greater the amount of non-parallelism between the measuring claws on the main scale and...

AI Technical Summary

Problems solved by technology

[0002] The vernier caliper is simple in structure, widely used, easy to use, can meet the measurement requirements of general precision, and is widely used in the production of various industries; taking the vernier caliper with a range of 0 to 150mm as an example, the existing vernier The vernier assembly slides on the main ruler. There is a spring piece between the vernier and the main ruler. The elastic force of the spring piece is adjusted by the screw stop pressure, so that there is a more suitable fit gap between the main ruler and the vernier. However, due to the main ruler and the vernier The components are clearance fit during use, which directly affects the measurement accuracy

[0003] The larger the fit gap, the greater the amount of non-parallelism between the measuring claws on the main scale and the measuring claws on the vernier assembly during the measurement process; the smaller the fit gap, the greater the resistance and the worse the sliding performance; the screw stop It is in the adjustment state and cannot be locked. During the sliding process of the vernier, the gap between the main scale and the vernier is likely to increase, and the spring piece will fall off.

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