Measuring instrument suitable for measuring roundness and diameter of annular product

Abstract

The invention relates to the technical field of measurement, and discloses a measuring instrument suitable for measuring the roundness and the diameter of an annular product. The measuring instrumentcomprises a rack, a working table, a measuring assembly, a driving device and a control system. The driving device is used for driving the to-be-tested annular product to rotate. The control system isused for controlling the operation of the driving device and receiving and processing measurement data of the measurement assembly, and an inner diameter measurement assembly and an outer diameter groove measurement assembly in the measurement assembly are located inside and outside an inner ring of the annular product to be measured respectively. The inner diameter measuring assembly is attachedto the inner ring wall; and the outer diameter groove measuring assembly is respectively attached to the outer ring wall and the tire bead. The diameter and roundness related parameters of the to-be-measured annular product can be accurately measured through reasonable distribution of the measuring assemblies on the working table and corresponding structures, data operation processing is conducted through the control system, and the bounce value, the error, the roundness, the height value between the diameters and other data of the to-be-measured annular product can be obtained. The measuringinstrument is high in automation degree and accurate in detection result, and manpower is greatly saved.

Description

technical field [0001] The invention relates to the technical field of measurement, in particular to a measuring instrument for measuring roundness and diameter of bicycle wheels or other ring-shaped products. Background technique [0002] The measurement of the diameter and roundness of wheels or other ring-shaped products is a parameter that needs to be measured for disc parts. Although there are various measurement methods for disk parts, such as roller method, pneumatic method, grating measurement, laser measurement, etc., due to the limitation of the shape of the wheel and the measurement position, at present, the measurement of the outer diameter of the wheel is through a special wheel. The outer diameter ruler is used for offline measurement, and the measurement error is more than 0.1mm; moreover, the manual use of the wheel outer diameter ruler to measure the wheel outer diameter can neither guarantee the measurement accuracy nor meet the requirements of continuous p...

AI Technical Summary

Problems solved by technology

Although there are various measurement methods for disk parts, such as roller method, pneumatic method, grating measurement, laser measurement, etc., due to the limitation of the shape of the wheel and the measurement position, at present, the measurement of the outer diameter of the wheel is through a special wheel. The outer diameter ruler is used for offline measurement, and the measurement error is more than 0.1mm; moreover, the manual use of the wheel outer diameter ruler to measure the wheel outer diameter can neither guarantee the measurement accuracy nor meet the requirements of continuous production, and the labor intensity of the workers is also very high

Although the pneumatic method and laser measurement method can achieve high accuracy, these methods are difficult to implement, with heavy maintenance workload and high cost, and it is difficult to popularize and apply them in production practice.

Moreover, most of the current measuring devices have a single function and cannot measure roundness and diameter at the same time, and some measuring devices that can measure multiple parameters at the same time are expensive

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