CN103162598B - A kind of measuring method of radius-of-curvature and measurement mechanism - Google Patents

Abstract

The present invention is applicable to surveying instrument technical field, and provide a kind of measuring method and measurement mechanism of radius-of-curvature, the measuring method of described radius-of-curvature comprises the following steps: measuring appliance is opened; Steel ruler is pressed close to the required bent arc measuring thing; Read the first plumbing bar and the flexible angle number of degrees of restricting, draw radius-of-curvature, the present invention is by adopting elastic steel ruler, read the number of degrees of the angle of the first plumbing bar and steel ruler, radius-of-curvature is gone out by formulae discovery, in addition, this measurement mechanism structure is simple, easy to use, lighter weight, preferably resolve existing to the inaccurate and awkward problem of measuring appliance with the radian radius of curvature measurement measuring thing, in addition, the present invention is easy to operate, and cost of manufacture is low, measurement result is accurate, has good actual application value.

Description

A kind of measuring method of radius-of-curvature and measurement mechanism

Technical field

The invention belongs to surveying instrument technical field, particularly relate to a kind of measuring method and measurement mechanism of radius-of-curvature.

Background technology

At present, for the radius of curvature measurement measuring thing band radian, adopt and measure diameter, draw radian by the method calculated, or measured by some simple utensils, but the result of existing measurement approach is inaccurate, inconvenience is brought for producing, be unfavorable for the Quality advance of product, existing measuring appliance uses inconvenience in addition, have impact on the use of people.

Summary of the invention

The object of the embodiment of the present invention is the measuring method and the device that provide a kind of radius-of-curvature, is intended to solution existing to the inaccurate and awkward problem of measuring appliance with the radian radius of curvature measurement measuring thing.

The embodiment of the present invention is achieved in that a kind of measuring method of radius-of-curvature, and the measuring method of described radius-of-curvature comprises the following steps:

Measuring appliance is opened;

Steel ruler is pressed close to the required bent arc measuring thing;

Read the first plumbing bar and the flexible angle number of degrees of restricting, draw radius-of-curvature.

Further, the measuring method of described radius-of-curvature also comprises external radius measuring method and inside radius measuring method.

Further, the step that described external radius measuring method is concrete is:

Step one: instrument is launched;

Step 2: steel ruler is close to measured object along the bent arc of required measurement;

Step 3: read the first plumbing bar and the flexible angle angular readings α (°) restricted;

Step 4: computation and measurement radius-of-curvature

$R=\frac{90L}{\mathrm{\π}(90-\mathrm{\α})}.$

Further, the step that described inside radius measuring method is concrete is

Step one: instrument is launched;

Step 2: steel ruler is close to measured object along the bent arc of required measurement;

Step 3: read the first plumbing bar and the flexible angle angular readings β (°) restricted;

Step 4: computation and measurement radius-of-curvature

$R=\frac{90L}{\mathrm{\π}(\mathrm{\β}-90)}.$

Another object of the present invention is the measurement mechanism providing a kind of radius-of-curvature, and the measurement mechanism of described radius-of-curvature comprises: steel ruler, the first plumbing bar, the first hinge, the second plumbing bar, the second hinge, protractor, flexible rope; Described steel ruler is arranged on the bottom of described measurement mechanism, and described first plumbing bar and the second plumbing bar are arranged on the both sides of described steel ruler, and described protractor is arranged on described first plumbing bar, and described first plumbing bar connects described second plumbing bar.

Further, described first plumbing bar is arranged on steel ruler by the first hinge.

Further, described second plumbing bar is arranged on steel ruler by the second hinge.

Further, described first plumbing bar is by flexible rope connection second plumbing bar.

Further, described steel ruler is the flexible stainless steel of band.

Accompanying drawing explanation

Fig. 1 is the realization flow figure of the measuring method of the radius-of-curvature that the embodiment of the present invention provides;

Fig. 2 is the structural representation of the measurement mechanism of the radius-of-curvature that the embodiment of the present invention provides.

Embodiment

In order to make object of the present invention, technical scheme and advantage clearly understand, below in conjunction with embodiment, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.

As shown in Figure 1, the measuring method of the radius-of-curvature of the embodiment of the present invention comprises the following steps:

S101: measuring appliance is opened;

S102: steel ruler is pressed close to the required bent arc measuring thing;

S103: read the first plumbing bar and the flexible angle number of degrees of restricting, draw radius-of-curvature;

The concrete measuring method of the embodiment of the present invention is:

1, external radius measuring method, step is as follows:

Step one: instrument is launched;

Step 2: steel ruler is close to measured object along the bent arc of required measurement;

Step 3: the angle angular readings α (°) reading the first plumbing bar 2 and flexible rope 5;

Step 4: computation and measurement radius-of-curvature

$R=\frac{90L}{\mathrm{\π}(90-\mathrm{\α})};$

2, inside radius measuring method, step is as follows:

Step one: instrument is launched;

Step 2: steel ruler is close to measured object along the bent arc of required measurement;

Step 3: the angle angular readings β (°) reading the first plumbing bar 2 and flexible rope 5;

Step 4: computation and measurement radius-of-curvature

$R=\frac{90L}{\mathrm{\π}(\mathrm{\β}-90)};$

As shown in Figure 2, the measurement mechanism of the radius-of-curvature of the embodiment of the present invention primarily of: steel ruler 1, first plumbing bar 2, first hinge 21, second plumbing bar 3, second hinge 31, protractor 4, flexible rope 5 form, steel ruler 1 material of the present invention: elastic stainless steel, thickness: 1-3mm, length can make as required; First plumbing bar 2 and the second plumbing bar 3 material adopt batten or unit of plastic to make, length: 200mm-L/2; Protractor 4 precision 0.1 °, scope: 0-180 °; First plumbing bar 2 and the second plumbing bar 3 rotate by the first hinge 21 and the second hinge 31, the receipts superimposition of implementation tool launches, when instrument launches, the first plumbing bar 2 is vertical with steel ruler 1 with the second plumbing bar 3, when steel ruler 1 bends, the first plumbing bar 2 and the second plumbing bar 3 are in bending radial direction, in use, the first plumbing bar 2 and the second plumbing bar 3 are holded up, steel ruler 1 is attached on the arc needing to measure thing, then read the first plumbing bar 2 and the angle number of degrees of flexible rope 5, go out radius-of-curvature according to formulae discovery.

The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, all any amendments done within the spirit and principles in the present invention, equivalent replacement and improvement etc., all should be included within protection scope of the present invention.

Claims (2)

1. a measuring method for radius-of-curvature, is characterized in that, the measuring method of described radius-of-curvature comprises the following steps:

Measuring appliance is opened;

Steel ruler is pressed close to the required bent arc measuring thing;

Read the first plumbing bar and the flexible angle number of degrees of restricting, draw radius-of-curvature;

The measuring method of described radius-of-curvature also comprises external radius measuring method and inside radius measuring method;

The step that described external radius measuring method is concrete is:

Step one: instrument is launched;

Step 2: steel ruler is close to measured object along the bent arc of required measurement;

Step 3: read the first plumbing bar and the flexible angle angular readings α (°) restricted;

Step 4: computation and measurement radius-of-curvature

The step that described inside radius measuring method is concrete is:

Step one: instrument is launched;

Step 2: steel ruler is close to measured object along the bent arc of required measurement;

Step 3: read the first plumbing bar and the flexible angle angular readings β (°) restricted;

Step 4: computation and measurement radius-of-curvature

2. a measurement mechanism for radius-of-curvature, is characterized in that, the measurement mechanism of described radius-of-curvature comprises: steel ruler, the first plumbing bar, the first hinge, the second plumbing bar, the second hinge, protractor, flexible rope;

Described steel ruler is arranged on the bottom of described measurement mechanism, and described first plumbing bar and the second plumbing bar are arranged on the both sides of described steel ruler, and described protractor is arranged on described first plumbing bar, and described first plumbing bar connects described second plumbing bar;

Described first plumbing bar is arranged on steel ruler by the first hinge;

Described second plumbing bar is arranged on steel ruler by the second hinge;

Described first plumbing bar is by flexible rope connection second plumbing bar;

Described steel ruler is the flexible stainless steel of band.