Device for automatically measuring outer diameter of vehicle wheel on line and measurement method thereof

Abstract

The invention discloses a device for automatically measuring an outer diameter of a vehicle wheel on line and a measurement method of the outer diameter of the vehicle wheel. The device for automatically measuring the outer diameter of the vehicle wheel on line is mounted on a vehicle wheel finished product detection line conveyor roller, and comprises a bracket, a lifting mechanism and a measurement mechanism. The bracket is in a door-type structure and is spanned on the conveyor roller; the lifting mechanism is mounted in the middle of the bracket to complete the lifting movement of the measurement mechanism; the measurement mechanism is mounted below the lifting mechanism, and comprises measurement heads positioned at two ends of a measurement mechanism body for measuring the outer diameter of the vehicle wheel; and each measurement head moves back and forth along a linear guide rail mounted below the measurement mechanism body, and a moving distance of each measurement head is read by a grating ruler mounted on the measurement mechanism body, and an original point is calibrated by a standard gauge. By the device for automatically measuring the outer diameter of the vehicle wheel on line with the special structure, a device for measuring disc parts is more perfect, the measurement precision is improved to 0.05mm, so the measurement precision is greatly improved, and the production technology requirements are met.

Description

technical field [0001] The invention relates to the field of measurement of disk parts, in particular to a device for online automatic measurement of the outer diameter of a wheel. Background technique [0002] The measurement of the outer diameter of the wheel is a part of the measurement of disc parts. Although there are various measurement methods for disc parts, such as roller method, outer micrometer measurement, pneumatic method, grating measurement, laser measurement, etc., due to the shape of the wheel and the Restriction of the measurement position. At present, the measurement of the outer diameter of the wheel is carried out off-line with a special wheel outer diameter ruler, and the measurement error is above 0.1mm; moreover, manually using the wheel outer diameter ruler to measure the wheel outer diameter cannot guarantee the measurement Precision, more can not meet the requirement of continuous production, and the labor intensity of workers is also very high. A...

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Problems solved by technology

[0002] Wheel outer diameter measurement is a part of disk parts measurement. Although there are various measurement methods for disk parts, such as roller method, outer micrometer measurement, pneumatic method, grating measurement, laser measurement, etc., due to the shape of the wheel and the Restriction of the measurement position. At present, the measurement of the outer diameter of the wheel is carried out off-line with a special wheel outer diameter ruler, and the measurement error is above 0.1mm; moreover, manually using the wheel outer diameter ruler to measure the wheel outer diameter cannot guarantee the measurement precision, and cannot meet the requirements of continuous production, and the labor intensity of workers is also 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.

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