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Right-angle ruler for measuring the radius of curvature of outer circle and its measuring method

A technology of radius of curvature and ruler, applied in the field of measurement, can solve the problems of inaccurate measurement accuracy, poor versatility, and inconvenience of radius of curvature, etc., and achieve the effect of large measurement range, strong adaptability, and convenient measurement method.

Inactive Publication Date: 2017-02-15
刘东
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a right angle ruler and measuring method for the radius of curvature of an outer circle, so as to solve the technical defects in the prior art that it is not convenient enough to measure the radius of curvature of objects of different shapes, the measurement accuracy is not accurate enough, and the versatility is not strong.

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  • Right-angle ruler for measuring the radius of curvature of outer circle and its measuring method
  • Right-angle ruler for measuring the radius of curvature of outer circle and its measuring method

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specific Embodiment approach 1

[0017] See attached figure 1 , the rectangular scale for measuring the radius of curvature of the outer circle in the present invention comprises a short side 1 of the rectangular scale and a long side 2 of the rectangular scale, the length of the short side 1 of the rectangular scale is a known fixed value, and the long side 2 of the rectangular scale is attached with Scale, the short side 1 of the right-angled scale and the long side 2 of the right-angled scale are absolutely perpendicular to each other, and the short side 1 of the right-angled scale and the long side 2 of the right-angled scale are integrated.

[0018] The method for measuring the radius of curvature of the outer circle of the present invention comprises the following steps:

[0019] Step 1: Put the long side 2 of the right-angled ruler close to a point on the arc of the measured object, and ensure that the long side 2 of the right-angled ruler is tangent to this point on the arc of the measured object 3, a...

specific Embodiment approach 2

[0025] See attached figure 2 The difference between this embodiment and Embodiment 1 is that the method for measuring the radius of curvature of the outer circle of the present invention includes the following steps:

[0026] Step 1: Put the long side 2 of the right-angled scale close to point B on the arc of the measured object 3, ensure that the long side 2 of the right-angled scale is tangent to point B, and at the same time ensure that the vertex of the short side 1 of the right-angled scale is on the arc of the measured object 3 Intersect at point A on

[0027] Step 2: Read out the corresponding value L2 of point B on the long side 2 of the rectangular scale;

[0028] Step 3: Substituting the value into the calculation formula r=(L1×L1+L2×L2)÷(2×L1), the length of the short side of the right-angled ruler is known as L1, and the corresponding tangent point of the measured object 3 is obtained by calculation radius of curvature of the outer circle;

[0029] Among them, ...

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Abstract

The invention provides a right-angle ruler for measuring the radius of curvature of outer circle and its measuring method, which belong to the technical measurement field and solve the technical problems that the radiuses of curvature of objects in different shapes cannot be accurately and rapidly measured and that the conventional method is not universal in terms of applications. The ruler of the invention comprises a right angle ruler short edge and a right angle ruler long edge wherein the length of the former is a known fixed value and the latter is provided with calibrations. The right angle ruler short edge is absolutely perpendicular to the right angle ruler short edge and the two are integrated as one. According to the invention, it is possible to measure the radiuses of curvature of circles, cylindrical forms, spherical shapes and fillets in its measurement scope. For its large measurement scope and accuracy, the ruler is very adaptive in application. The measuring method of the invention is also convenient and accurate.

Description

technical field [0001] The invention belongs to the technical field of measurement, and in particular relates to a rectangular scale for measuring the radius of curvature of an outer circle and a measuring method. Background technique [0002] At present, the methods of measuring the radius of curvature of ordinary circles, cylinders, balls, arcs, etc. include the following: using conventional measuring tools such as vernier calipers, micrometers, and scales to measure the radius of a circle is only suitable for complete circles, and for incomplete circles. The measurement adaptability of shaped products is poor, the measuring range is small and the measurement process is based on circular cross-sections, so it is impossible to measure the curvature radius of large and medium-sized, super-large cylinders, balls, arcs and other objects; although the tape measure can measure the outer circumference and then calculate the radius, but the actual Measurement and value-taking erro...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01B5/213
CPCG01B5/213
Inventor 刘东姜序敏贺春山
Owner 刘东
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