Novel push-type micrometer caliper

Abstract

The invention discloses a novel push-type micrometer caliper. The micrometer caliper comprises a pipe body. The pipe body is movably provided with a rotation sleeve. A measurement top rod is fixedly inserted into the rotation sleeve. The pipe body is fixedly connected to a fixed rod. A U-type scale holder is movably provided with a measuring anvil. The fixed sleeve is engaged with the internal thread on the rotation sleeve through an external thread. One side of the measurement top rod, which is far away from the U-type scale holder, passes through and enters into the pipe body via a fixed seat in the pipe body. A pressing rod passes through the pipe body and is fixedly connected to a first connection rod. A second connection rod is movably inserted into the first connection rod. Driven wheels are engaged with a first driven gear. The first driven gear is engaged with a second driven gear through a connection rod. In the invention, object measurement can be performed without repeatedlyrotating a threaded rod, and the object measurement can be completed only through pressing a push plate, and simultaneously, during a measurement process, there is no need to fix the U-type scale holder by hands so that convenience is brought for the measurement of a measurer, and the micrometer caliper is suitable for popularization.

Description

technical field [0001] The invention relates to the technical field of precision instruments, in particular to a novel push-type screw micrometer. Background technique [0002] Spiral micrometer, also known as micrometer, spiral micrometer, centimeter card, is a more precise tool for measuring length than vernier caliper. It can measure length accurately to 0.01mm, and the measuring range is several centimeters. When it is in the fixed sleeve When the screw sleeve of pipe B rotates, it will advance or retreat, and the movable sleeve C and the screw rod are connected as one, and its periphery is equally divided into 50 divisions. The number of full revolutions of the screw is measured by the 0.5mm scribe line on the fixed sleeve, and the part less than one turn is measured by the scribe line around the movable sleeve. The final measurement result needs to be estimated to one decimal place, but the traditional screw The micrometer needs to turn the screw by hand, and it can r...

AI Technical Summary

Problems solved by technology

The number of full revolutions of the screw is measured by the 0.5mm scribe line on the fixed sleeve, and the part less than one turn is measured by the scribe line around the movable sleeve. The final measurement result needs to be estimated to one decimal place, but the traditional screw The micrometer needs to turn the screw by hand, and it can reach the measurement area through multiple rotations. At the same time, it needs to fix the object to be measured by hand and fix the U-shaped ruler frame to prevent it from rotating with the screw, which will cause trouble to the measurement.

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