A direct-reading caliper with three-point measurement and combination of inside and outside

Abstract

A direct-reading caliper with three-point measurement and internal and external combination, including a handle, a U-shaped guard plate is arranged under the handle, the handle device and the U-shaped guard plate are connected by threads, and the bevel gear in the U-shaped guard plate moves through pins Connection: connect bevel gear B and bevel gear C to the top of the right-angle leg with a shaft, pin B and pin A respectively fix bevel gear A and bevel gear D in the U-shaped guard plate, bevel gear C meshes with bevel gear D, The bevel gear A meshes with the bevel gear B, the bevel gear A is fixedly connected with the top of the left leg, and the bevel gear D is fixedly connected with the top of the right leg; There is a circular scale indicator plate, and the left leg, right leg and the bottom of the right-angle rod are equipped with inner and outer calipers; the distance on the direct reading ruler is the radius, and the measured scale can be doubled to obtain the measured object It has the characteristics of simple structure, accurate measurement, convenient use and humanized operation.

Description

technical field [0001] The invention relates to a caliper, in particular to a direct-reading caliper equipped with three-point measurement and combined inside and outside. Background technique [0002] After analysis and research, it is found that the existing calipers have the following defects: [0003] 1) Defects of using traditional calipers. After analysis, traditional calipers have perceptual components in measurement, because some experienced masters always choose to rely on their own experience to measure and find the diameter of the measured object. More people measure several times and calculate the average value as the diameter of the measured object. The diameter measured by the above two methods not only has a large error, but also cannot judge whether the measured diameter is the diameter of the object. Such a measurement method will also bring some unnecessary troubles to the work with higher tolerance requirements. [0004] 2) The use function of traditiona...

AI Technical Summary

Problems solved by technology

The diameter measured by the above two methods not only has a large error, but also cannot judge whether the measured diameter is the diameter of the object. Such a measurement method will also bring some unnecessary troubles to the work with higher tolerance requirements.

[0004] 2) Insufficient functions of traditional calipers. Now the calipers on the market are separated from the inner and outer calipers, and none of them combine the inner and outer calipers into one.

Therefore, when a large number of measurements are carried out, the tools are constantly changed, which will undoubtedly cause a greater burden on the workers and teachers, and also increase the cost of manufacturing.

[0005] 3) Insufficient measurement accuracy of traditional calipers, traditional calipers have great disadvantages in reading, because calipers do not have their own measuring ruler

This caused the caliper to loosen when it was removed, which increased the error in the reading

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