Digital display shaft run-out instrument and shaft run-out detection method

Abstract

The invention is a digital display shaft runout instrument, which comprises a concave bracket, a measuring assembly axially arranged on the extension of the bracket, and a counting assembly arranged at the end of the measuring assembly; the measuring assembly includes a telescopic cylinder, a resisting The abutment assembly and the sensor fixed at the outer extension of the bracket to measure the displacement of the abutment assembly; the counting assembly includes a roller connected to the abutment assembly, and an encoder connected to the roller through a shaft transmission. The digital display shaft runout instrument of the present invention has high detection precision, easy function realization, simple operation, no limitation on working environment and light intensity, and wide application range. In addition, the invention can improve detection efficiency and greatly simplifies manual operation procedures.

Description

technical field [0001] The invention relates to a measuring tool, in particular to a shaft runout measuring tool. Background technique [0002] After the machining or heat treatment of the shaft, it needs to be straightened and its runout value measured. In shaft tube alignment, the runout of the shaft tube is usually measured with a stylus, which is characterized by simplicity and cheapness. The disadvantage is that it relies on the human eye to estimate the runout value based on experience, because the distance between the human eye and the measured point is 45. It is difficult to accurately estimate the size of the jump value, and affected by the ambient light, it is more difficult to observe at night, causing a large number of non-straight shaft tubes to flow into the next process, which brings great losses to the business operation. Later, the dial gauge was used to measure, but the hands of the watch also fluctuated greatly during the measurement, which made the obser...

AI Technical Summary

Problems solved by technology

In shaft tube alignment, the runout of the shaft tube is usually measured with a stylus, which is characterized by simplicity and cheapness. The disadvantage is that it relies on the human eye to estimate the runout value based on experience, because the distance between the human eye and the measured point is 45. It is difficult to accurately estimate the size of the jump value, and affected by the ambient light, it is more difficult to observe at night, causing a large number of non-straight shaft tubes to flow into the next process, which brings great losses to the business operation

Later, a dial gauge was used to measure, and the hands of the watch also fluctuated greatly during the measurement, which made the observation difficult, and the jump value had to be estimated and calculated, which increased the workload of the operator.

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