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A V-shape measuring method for outer diameter and a V-shape inspection tool for the outer diameter of valve disc

A measurement method and valve disc technology, applied in the direction of measuring devices, instruments, etc., can solve the problems of low measurement efficiency, difficult operation, less investment, etc., and achieve the effect of convenient calibration

Active Publication Date: 2018-01-12
HUAI JI DENG YUE VALVE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] The purpose of the present invention is to overcome the deficiencies in the prior art, provide a V-shaped measuring method for the outer diameter and a V-shaped inspection tool for the outer diameter of the valve disc, and solve the problem of difficult operation and low measurement efficiency in the prior art problems, improve the measurement efficiency, and with less investment, it can be used in large quantities on the production site to meet the needs of high-frequency and accurate measurement of large quantities of workpieces

Method used

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  • A V-shape measuring method for outer diameter and a V-shape inspection tool for the outer diameter of valve disc
  • A V-shape measuring method for outer diameter and a V-shape inspection tool for the outer diameter of valve disc
  • A V-shape measuring method for outer diameter and a V-shape inspection tool for the outer diameter of valve disc

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Embodiment 1

[0032] The V-shaped measurement method of outer diameter involved in the first embodiment of the present invention, the measurement principle of zero parameter deviation is as follows: figure 1 As shown, the sine value of the half angle α of the V-shaped angle is equal to 1 / 3, that is, sinα=1 / 3, α=arcsin(1 / 3). The outer diameter of the tested part is placed in the V-shaped corner and tangent to both sides of the V-shaped corner;

[0033] The contact point between the measuring rod of the measuring sensor and the measured shaft (that is, the measuring position) is on the angular bisector of the V-shaped angle, which is the line segment formed by the apex of the V-shaped angle and the center of the measured shaft and the outer diameter of the measured shaft Intersection.

[0034] When the two diameters are φ 0 , Φ 1 When the axis of the sensor is placed in the V-shaped angle for measurement, the displacement of the sensor rod △y is the difference between the two diameters φ 1 -φ 0 , ...

Embodiment 2

[0056] The V-shaped inspection tool for the outer diameter of the valve disc part involved in the present invention is a inspection tool for comparative measurement of the outer diameter of the valve disc part of an automobile engine using the detection method described in the first embodiment. figure 2 It is a schematic diagram of the outer diameter of the engine valve disc. The outer diameter of the engine valve disc of different models ranges from φ22mm to φ55mm, and the diameter deviation is usually ±0.1mm.

[0057] Because there are deviations in the processing, assembly, and measurement of the inspection tools and the standard parts for comparison, such as the measurement error of the standard part diameter, the deviation of the V-shaped half-angle α from the theoretical value arcsin (1 / 3), and the measuring rod is not at the V-shaped angle There are deviations such as eccentricity and inclination on the bisecting line of the bisector, and there are deviations from the theor...

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Abstract

The invention provides an outer diameter V-shaped measurement method. The method includes the following steps that: a V-shaped gauge for detecting outer diameter is provided, wherein the V-shaped gauge is provide with a V-shaped corner of which the angle value is 2*alpha, wherein the value of alpha is arcsin (1 / 3); the V-shaped gauge also comprises a sensor, and when a standard shaft is arranged into the V-shaped corner and is tangent to two sides of the V-shaped corner, and numerical value presetting is performed on the sensor; and after a measured shaft is arranged in the V-shaped corner and is tangent to the two sides of the V-shaped corner, the sensor measures the displacement of a measuring point, and the displacement of the measuring point is the difference of the outer diameter of the standard shaft and the outer diameter of the measured shaft, and the measuring point is an intersection point of a line segment formed the vertex of the V-shaped corner and the center of the measured shaft, and the outer diameter of the measured shaft, and the measuring rod of the sensor and the measuring point of the measured shaft are located at the angular bisector of the V-shaped corner. Correspondingly, the invention also provides an outer diameter V-shaped measurement method-based V-shaped gauge of valve retainer outer diameter. With the outer diameter V-shaped measurement method and the V-shaped gauge of the valve retainer outer diameter of the invention adopted, problems of high operation difficulty and low measurement efficiency in the prior art can be solved.

Description

Technical field [0001] The invention relates to the field of parts outer diameter detection, in particular to a V-shaped measuring method of the outer diameter and a V-shaped checking tool for the outer diameter of a valve disc. Background technique [0002] For the outer diameter measurement of shaft parts, there are generally length measuring instruments, coordinate measuring machines, optical measuring instruments, projectors, vernier calipers, outer diameter micrometers, calipers, stop gauges, special inspection tools and other testing methods. They have their own advantages and disadvantages and are suitable for different requirements and environments. In the prior art, in the production site, vernier calipers, outside micrometers, calipers, stop gauges, 90° V-shaped gauges, etc. are often used for measurement, but the limitations of their use are also obvious. [0003] The indexing interval of the vernier caliper is small, and the measurement error caused by the alignment of...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01B21/10
CPCG01B21/10
Inventor 傅文兰
Owner HUAI JI DENG YUE VALVE CO LTD
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