Device and method for measuring distance from plate cone gauge section to plate end face of air valve

Abstract

The invention discloses a device and a method for measuring a distance from a plate cone gauge section to a plate end face of an air valve. The distance measurement device comprises a measurement component and a gauge support seat, wherein an air valve mounting hole is formed on the gauge support seat for insertion of a rod part of the air valve; the diameter of the upper end of the air valve mounting hole is equal to that of the plate cone gauge section of the air valve; the measurement component comprises a gauge body, a sleeve and a measurement shaft; a dial indicator is fixed at the upper end of the sleeve; a measurement shaft mounting hole is formed at the center of the gaur body; a lug boss is arranged at the bottom of the gauge body; the height of the lug boss is equal to the standard size of the distance from the plate cone gauge section to the plate end face; the upper part of the measurement shaft is arranged into the measurement shaft mounting hole in a sliding manner; the upper end of the measurement shaft resists against a measurement head of the dial indicator; a first measurement surface is formed at the bottom surface of the measurement shaft; and the first measurement surface resists against the plate end face of the air valve in measurement. According to the method and the device disclosed by the invention, the first measurement surface is a plane, so that the device and the method are accurate in measurement result, good in repeatability and fast in measurement speed.

Description

technical field [0001] The invention relates to the field of engines, in particular to a device and method for measuring the distance from the section of a disc cone surface gauge of a valve to the disc end surface. Background technique [0002] A valve is an engine component (such as Figure 10 As shown), the valve 3 includes a rod part and a disc part, and the transition area between the disc part and the rod part is provided with a disc cone surface. The top surface of the part is the disk end surface 32, and the standard distance from the disk cone surface gauge section to the disk end surface is A. [0003] In the production of engine parts, the longitudinal distance from the section of the valve disc cone gauge on the valve to the end face of the disc is generally measured by a general-purpose three-coordinate machine or by the cooperation of a special inspection tool and a dial indicator for platform measurement. However, these two measurement methods take a long tim...

AI Technical Summary

Problems solved by technology

However, these two measurement methods take a long time to measure, and both use point probes. Because the diameter of the valve disc cone surface is large, the measurement results at different positions of the valve disc cone surface gauge section have a large gap, so the measurement The accuracy is not good, which is not conducive to quality control

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