Device for measuring wall thickness of pipe

Abstract

The invention provides a device for measuring the wall thickness of a pipe. The device comprises a micrometer gauge (1), a measuring rocker arm (2) and a base (7), wherein the measuring rocker arm (2) comprises an upper arm and a lower arm, which are parallel to each other; a fixed measuring head (4) is arranged on the lower arm; the micrometer gauge (1) is fixed on the upper arm; a micrometer gauge measuring head (3) is aligned to the fixed measuring head (4) that is arranged on the lower arm; a heavy hammer is arranged at the rear end of the lower arm of the measuring rocker arm (2); a V-shaped support (6) and a guide column (10) are arranged on the base (7); and a sliding block (11) drives the measuring rocker arm (2) to slide on the guide column (10). During the measurement, a pipe tobe measured (5) is put inside the V-shaped support (6), and the lower arm of the measuring rocker arm (2) is put inside the pipe to be measured (5). The device achieves the tracking measurement of the wall thickness of the pipe, eliminates the measurement error due to the shape error of the pipe, and is easy and convenient to operate. In the combination with a pipe combined motion driving system,the device can rapidly and continuously measure the wall thickness of the pipe.

Description

technical field [0001] The invention relates to a device for testing the wall thickness of pipe materials, which is mainly used in the field of analysis and testing of polymer materials. technical background [0002] With the rapid development of the plastic pipe industry, its application fields continue to expand. At present, it has been widely used in urban water supply and drainage, building water supply and drainage, hot water supply, heating and heating, building rainwater drainage, urban gas, agricultural irrigation and drainage, and chemical fluid transportation. And wire, cable sheathing tube and other fields. In the development and production of plastic pipes, accurate performance evaluation is very important for the safety and reliability of pipes in use. In the performance evaluation project of the pipe, there are a large number of projects that need to measure the wall thickness of the pipe and find out the minimum value of the wall thickness at the same time. A...

AI Technical Summary

Problems solved by technology

In the performance evaluation project of the pipe, there are a large number of projects that need to measure the wall thickness of the pipe and find out the minimum value of the wall thickness at the same time. A large amount of data needs to be collected during the test, so a large number of samples are required. For so many samples To measure its wall thickness and accurately find out the minimum wall thickness value of each sample, it is not only inefficient but also difficult to find the minimum wall thickness value if conventional measurement methods are used

At present, the commonly used wall thickness measurement devices are hand-held measuring tools. Measuring the wall thickness of pipes with this kind of measuring tool can only be measured at selected points, and continuous measurement cannot be achieved. It is very difficult to find the minimum value of the wall thickness on a sample, and because it is Handheld operation, very inefficient

Images