Digital display micrometer inside and outside diameter

Abstract

The patent of the invention relates to a digital display micrometer capable of measuring the inner and outer diameters of parts and components, which is characterized in that the inner and outer diameters can be measured by adjusting the direction adjustment block. The two direction adjustment blocks are at the two ends of the spring on the movable shaft. Rotate the direction adjustment block at one end into the vertical slot on one side of the movable shaft, and the direction adjustment block at the other end is close to the end surface of the ruler body. At this time, the spring top is tight. The direction adjustment block on one side of the ruler body generates a reverse elastic force to push the direction adjustment block in the slot of the movable shaft and drives the movable shaft to move. The active axis and digital display moving axis are parallel and move synchronously. Therefore, the movement value of the moving axis will be displayed on the digital display device screen of the inner and outer diameter digital display micrometer. The patent of the invention fills in the gaps in the relevant domestic measurement field, and its structural design to complete the measurement of inner and outer diameters without dismantling and installing components such as dial gauges is also superior to similar foreign products.

Description

technical field [0001] The patent of the present invention relates to a digital display micrometer used to measure the inner and outer diameters of parts and components. Background technique [0002] In the processing and manufacturing industry, when measuring the inner and outer diameters of components, the inner and outer micrometers are usually used to measure them separately. In practical applications, the diameter of the measuring head of the outer and inner micrometers is 8 mm, and the thickness of the sleeve diameter of the ruler reaches 15 mm, so when the height of the inner and outer diameters of components is less than 8 mm, it is impossible to measure the inner and outer diameters . Therefore, different factories and enterprises will make some measuring tools for measuring the inner diameter or outer diameter according to the size requirements of different parts. These measuring tools have long production cycle, low measurement accuracy, low reuse rate, serious w...

AI Technical Summary

Problems solved by technology

The foreign measuring rulers with the function of measuring the inner and outer diameters are tesainotesa of Switzerland and the multi-function digital ruler with the product number 1197 of Yingshi Austria, which also have some deficiencies in practical application: 1. It needs to be disassembled when measuring the inner diameter or outer diameter And install accessories such as dial indicator head, the installation process is time-consuming and complicated

2. When the needle of the dial indicator measures the inner diameter and outer diameter, the positive and negative indications it represents will change, which often causes confusion in the readings

3. When the reading of the dial indicator cannot be guaranteed, the pointer of the dial indicator will deviate from the indicated value, and the reading value will produce errors and affect the measurement results

4 The measured depth and the adjustment space of the depth positioning surface are small, and the measurement range of components is limited

Another important point is that imported measuring scales monopolize the market and are expensive. Our country urgently needs its own internal and external diameter measuring instruments.

Images