Inner diameter multiparameter measuring device for large length-to-diameter ratio pipe and measuring method thereof

Abstract

The invention discloses an inner diameter multiparameter measuring device for a large length-to-diameter ratio pipe which is characterized by comprising a measuring table, wherein both ends of the measuring table are respectively provided with a clamping device and a measuring mechanism for the pipe; the measuring mechanism comprises a guide rail arranged on one end of the measuring table; the inside of the guide rail is horizontally provided with a handwheel-driven screw; the guide rail is matched with a screw-driven slide block which can horizontally slide along the guide rail; the slide block is detachably connected with a clamping lever which extends towards the clamping device; the end part of the clamping lever is provided with a sensor; the pipe is horizontally fixed and clamped by the clamping device; and the axial line of the pipe is perpendicular to the axial line of the sensor. The inner diameter multiparameter measuring device for a large length-to-diameter ratio pipe in the invention can be used for simultaneously measuring the inner diameter, circular degree and straightness of the measured pipe. The measuring head of the sensor can reach any cross section in the measured space to carry out the measurement without dead points for measurement.

Description

Technical field: [0001] The invention relates to a multi-parameter measuring device and a measuring method for the inner diameter of a pipe fitting with a large length-to-diameter ratio. Background technique: [0002] The measurement of shaft parts and hole parts occupies a very important position in all manufacturing industries, and the measurement results will directly affect the quality of fit and the performance of products. Due to the influence of the size of the workpiece and its own structure, the hole parts are lower than the shaft parts in terms of machining accuracy and measurement accuracy. In addition, the activity space is relatively small, and the size of the measuring instrument is strictly limited, which makes the processing and assembly of the parts of the measuring tool itself more difficult, and the overall measurement accuracy is not high. The measurement accuracy of optical instruments is generally high, but the measured surface is the inner surface. Ge...

AI Technical Summary

Problems solved by technology

However, due to the limitation of the length of the measuring rod, only the diameter and roundness of a small section of the orifice can be measured. In addition, since the position of each product changes during measurement, it needs to be re-balanced. Manually measure the elements of the coordinate system, so the three-coordinate It is difficult for measuring machines to meet the fast, fast and online measurement requirements proposed by modern production

Images