KR101874823B1 - bending portion measuring apparatus - Google Patents

bending portion measuring apparatus Download PDF

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Publication number
KR101874823B1
KR101874823B1 KR1020160181954A KR20160181954A KR101874823B1 KR 101874823 B1 KR101874823 B1 KR 101874823B1 KR 1020160181954 A KR1020160181954 A KR 1020160181954A KR 20160181954 A KR20160181954 A KR 20160181954A KR 101874823 B1 KR101874823 B1 KR 101874823B1
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KR
South Korea
Prior art keywords
angle
banding
body parts
measuring
curvature
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KR1020160181954A
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Korean (ko)
Inventor
허선철
성헌진
김우조
김귀남
Original Assignee
경상대학교산학협력단
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Publication of KR101874823B1 publication Critical patent/KR101874823B1/en

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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B3/00—Measuring instruments characterised by the use of mechanical techniques
    • G01B3/002—Details
    • G01B3/004—Scales; Graduations
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B3/00—Measuring instruments characterised by the use of mechanical techniques
    • G01B3/10—Measuring tapes
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
    • G01B5/0002—Arrangements for supporting, fixing or guiding the measuring instrument or the object to be measured
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
    • G01B5/20—Measuring arrangements characterised by the use of mechanical techniques for measuring contours or curvatures
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
    • G01B5/24—Measuring arrangements characterised by the use of mechanical techniques for measuring angles or tapers; for testing the alignment of axes
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
    • G01D21/00—Measuring or testing not otherwise provided for
    • G01D21/02—Measuring two or more variables by means not covered by a single other subclass

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • A Measuring Device Byusing Mechanical Method (AREA)

Abstract

The banding measuring apparatus according to an embodiment of the present invention includes two body parts, an angle checking part, a tape measure and a restraining part for measurement, and confirms a deflection angle between the two body parts through the angle checking part, The length of the arc with respect to the bending portion is accurately measured by the measurement by the measuring tape, and furthermore, the curvature can be measured using the angle of the bending portion and the length of the arc. present.

Description

{Bending portion measuring apparatus}

And more particularly to a banding measuring device according to a new type that can easily measure the bending angle, the arc length, and the radius of curvature with respect to the bending portion of the bending pipe.

Generally, in the case of various pipes (piping), they are formed not only in a straight shape but also in various forms in consideration of interference avoidance with respect to other structures, extension direction, and the like.

These various bending pipes are manufactured by bending at an angle set by the pipe manufacturer, or at an installation site thereof by bending at an angle according to the needs of the operator.

At this time, the bending pipe can be precisely molded by measuring using a measuring instrument so that an accurate bending angle and a curvature can be obtained during its manufacture, and such a measuring instrument is generally a method using a vision camera or the like.

However, since the measuring device for measuring the bending angle and the curvature of the bending pipe is a considerably expensive device, it is difficult for the operator to use the bending pipe from time to time. In the installation site of the pipe as described above, His use would have been more difficult.

In recent years, various types of simple curvature measuring devices have been developed for the operator, and in this regard, there have been proposed a method of measuring a curvature value , Registration Utility Model No. 20-0249853, Registration No. 10-1411505, and the like.

However, in order to measure the curvature of the bending pipe, it is necessary to know the bending angle and the length of the arc. However, the bending angle of various curvature measuring devices according to the conventional art can be accurately confirmed, The curvature can not be accurately measured because the bending angle can not be accurately confirmed.

Particularly, even when the curvature measuring device is excessively small compared to the size of the bending pipe, or when the curvature measuring device is excessively large compared to the size of the bending pipe, the curvature of the bending pipe can not be accurately measured.

Registration Utility Model No. 20-0480238 Published Utility Model No. 20-2010-002372 Registration Utility Model No. 20-0168896 Registration Utility Model No. 20-0249853 Registration No. 10-1411505

It is an object of the present invention to easily measure the bending angle, the length of the arc and the radius of curvature with respect to the bending portion of the bending pipe, The present invention is to provide a banding measuring device according to a new shape capable of accurately measuring the size of the banding device.

In order to accomplish the above object, according to one aspect of the present invention, there is provided a banding measuring apparatus comprising: two body parts connected at one end to each other to be opened or closed; An angle confirmation unit for confirming a flaring angle of the two body parts; A tape measure provided for measuring the length of the arc of the banding part while contacting the surface of the banding part by drawing or winding on the end of one of the two body parts; And a restraining part provided at an end of the other body part of the two body parts to restrain the end of the measuring tape.

Here, the angle confirmation unit may include a digital angle sensor for sensing and displaying a relative rotation angle between the two body parts.

The angle checking unit may further include a reading program configured to receive a length of a call with respect to a banding part to be measured and to read a curvature of the banding part based on the length of the inputted call and the sensed angle. do.

In addition, the two body portions are formed in a telescopic structure so that they can be stretched in the longitudinal direction.

In addition, a plurality of display lines are formed around the two body parts to display the scale printed on the measuring tape measure so as to be read accurately.

As described above, the banding measuring apparatus of the present invention can accurately determine the length L, the bending angle? And the radius of curvature R of the arc with respect to the bending portion of the bending pipe by a simple operation, So that accurate design and prediction can be achieved.

Further, since the banding measuring apparatus of the present invention is provided for portable purposes, it is possible to measure according to the needs of the operator in the field, and thus it is necessary to satisfy the condition that the radius of curvature R It is possible to provide an installation with a radius of curvature R that satisfies the above-mentioned requirement when cables are installed in the field.

In addition, in the banding measuring apparatus of the present invention, when the curvature measuring device is excessively small as compared with the size of the banding pipe, or when the curvature measuring device is excessively large compared to the size of the banding pipe, .

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view illustrating a non-use state of a banding measuring apparatus according to an embodiment of the present invention;
2 is a front view of a banding measuring apparatus according to an embodiment of the present invention,
FIG. 3 is a perspective view illustrating a state of use of the banding measurement apparatus according to the embodiment of the present invention.
FIG. 4 is a front view of a banding measurement apparatus according to an embodiment of the present invention,
5 is a front view illustrating an example of measuring a curvature of a bending pipe using a banding measuring apparatus according to an embodiment of the present invention.
6 is a front view illustrating an example of measuring a curvature of a circular product using a banding measurement apparatus according to an embodiment of the present invention.

Hereinafter, preferred embodiments of the banding measuring apparatus of the present invention will be described with reference to Figs. 1 to 6 attached hereto.

FIG. 1 is a perspective view illustrating a non-use state of a banding measurement apparatus according to an embodiment of the present invention, FIG. 2 is a front view illustrating a state of the banding measurement apparatus according to an embodiment of the present invention, FIG. 3 is a perspective view for explaining a state of use of the banding measuring apparatus according to the embodiment of the present invention, and FIG. 4 is a front view for explaining a state of using the banding measuring apparatus according to an embodiment of the present invention.

As shown in these drawings, the banding measuring apparatus according to the embodiment of the present invention mainly includes two body parts 110 and 120, an angle checking part 200, a measuring tape measure 300 and a restraining part 400 The angle θ with respect to the bending portion and the length L of the arc can be accurately measured while measuring the curvature R using the angle θ of the bending portion and the length L of the arc .

This will be explained in more detail for each configuration.

First, the two body parts 110 and 120 constitute an outer body.

The two body parts 110 and 120 are formed to have a long elongated structure and one end thereof is connected to be rotatable with respect to each other and is opened or closed so as to be placed on the surface of the banding part to be measured.

Particularly, in the embodiment of the present invention, the two body parts 110 and 120 are formed to have an inner hollow pipe structure and a plurality of overlapped state, and can be extended in the longitudinal direction thereof if necessary. That is, the two body parts 110 and 120 are each formed in a telescopic structure so that the two body parts 110 and 120 are stretched according to the size of the banding part and can be laid on two symmetrical surfaces of the corresponding banding parts. Can be commonly used irrespective of the length of the banding pipe 10 or the curvature of the measurement site.

In addition, in the embodiment of the present invention, a plurality of display lines 111 and 121 are formed on the circumferential surfaces of the two body parts 110 and 120.

The display lines 111 and 121 are spaced apart at regular intervals along the length of the body 110 and 120 to aid the user in accurately reading the scale printed on the measuring tape measure 300.

Next, the angle checking unit 200 is provided to check the angle of opening θ of the two body parts 110 and 120.

The angle confirmation unit 200 receives a sensing value of the relative rotation angle when the two body parts 110 and 120 are rotated with respect to the rotation pin 130 provided at a connection portion between the two body parts 110 and 120 And a digital angle sensor for displaying on the display window 210, and is provided on one of the two body parts 110 and 120.

At this time, a sensor (e.g., a hall sensor) (not shown) that senses the relative rotational displacement of the two body parts 110 and 120 with respect to the rotation pin 130 is provided at a connection portion between the two body parts 110 and 120 And the sensor is configured to transmit a sensed value through a signal line (not shown) to a controller (not shown) for display control of the display window 210. The signal line is connected to the body 110, As shown in FIG.

In addition, in the embodiment of the present invention, it is shown that the angle check unit 200 includes a read program.

Here, the read program is a program that is programmed to calculate and read the curvature of a bending portion based on the length of the incoming call and the sensed angle, wherein the length L of the call to the bending portion is determined by the angle checker 200 (E.g., a user's mobile phone) that is input through the input button 220 or paired with the angle check unit 200 so as to transmit and receive data wirelessly.

That is, the radius of curvature R can be measured based on the angle (?) With respect to the bending portion and the length (L) of the arc with respect to the bending portion as shown in the following Equation (1).

Figure 112016128910518-pat00001

Next, the measuring tape measure 300 is a portion provided to measure the length L of the arc with respect to the banding portion.

The measuring tape measure 300 is formed of a conventional tape measure configured to measure the length L of the arc with respect to the banding portion while being in close contact with the surface of the banding portion.

Particularly, the measuring tape measure 300 may include a tape measure 310 disposed at the end of one of the two body parts 100 (hereinafter, referred to as a "first body part") 110, , And wound. That is, the measuring tape measure 300 is configured to be selectively pulled out while being wound around the tape measure case 310 by using a spring (not shown).

Next, the restraining part 400 can be connected to another body part (hereinafter referred to as " second body part ") 120 only when necessary.

At this time, a hook 320 is formed at the outer end of the measuring tape measure 300, and the hook 320 of the measuring tape measure 300 is hooked to the restricting unit 400, (410) are formed.

That is, the measuring tape measure 300 is not always connected to the two body parts 110 and 120 by the structure of the ring part 320 and the restraining part 400, 1 and 2, it can be held in a wound state in the tape measure case 310 when the tape measure 310 is not in use, And then the ring 320 is restrained to the locking groove 410 of the restraining part 400 so as to be used.

Hereinafter, the process of measuring the angle [theta], the length L of the arc and the curvature R with respect to the bending portion of the bending pipe 10 using the banding measuring apparatus according to the embodiment of the present invention This will be described in detail.

First, the measuring tape measure 300 of the banding measuring device is taken out of the tape measure casing 310 and is restrained to the retaining groove 410 of the restraining part 400.

In this state, the two body parts 110 and 120 of the banding measuring device are adjusted to be elongated to a length considering the length of the banding pipe 10 to be measured and the size of the banding part to be measured. This is as shown in FIGS. 3 and 4 attached hereto.

The tape measure 300 is attached to the surface of the bending portion of the bending pipe 10 while the two body portions 110 and 120 whose lengths have been adjusted are opened and the two body portions 110 and 120 are brought into close contact with each other. Are respectively brought into close contact with the opposite end surfaces of the banding pipe (10). This is as shown in the attached FIG.

Accordingly, the angle checking unit 200 of the banding measuring apparatus confirms the angle of flare of the two body parts 110 and 120 and displays the angular angle of the two body parts 110 and 120 on the display window 210, &thetas;).

5, both side portions of the measuring tape measure 300 are located between the contact portions between the two body portions 110 and 120 and the pipe 10, While the inner side of the measuring tape 300 is only in contact with the surface of the bending portion of the pipe 10 and the two body portions 110 and 120, And the pipe (10) are gradually separated from the two body parts (110, 120).

As a result, the user can see the length from the surface of the second body part 120 to the part where the tape measure 300 is spaced apart from the surface of the second body part 120 to contact with the first body part 110, . Considering that a plurality of display lines 111 and 121 are formed on the surface of each of the body parts 110 and 120, the measuring tape measure 300 is connected to the second body part 120 through the display lines 111 and 121, It is possible to accurately recognize the portion separated from the surface and the portion contacting the first body portion 110 and the user can know the length L of the arc with respect to the bending portion by confirming the distance between the two portions.

When the user inputs the length L of the call to the input button (or mobile terminal) 220 of the angle checking unit 200, the reading program of the angle checking unit 200 determines the length of the inputted call The curvature R of the bending portion is calculated on the basis of the sensed angle L and the sensed angle [theta]. At this time, the calculation of the curvature is calculated on the basis of the equation mentioned in the above-mentioned equation (1).

The curvature R calculated as described above is displayed on the display window 210 of the angle checking unit 200 so that the user can accurately know the curvature of the bending portion of the bending pipe 10.

As a result, the banding measuring apparatus of the present invention can accurately determine the length L, the bending angle θ and the radius of curvature R of the arc with respect to the bending portion of the bending pipe 10 by a simple operation, Accurate design and prediction for the installation of the device 10 is possible.

Further, since the banding measuring apparatus of the present invention is provided for portable purposes, it is possible to measure according to the needs of the operator in the field, and thus it is necessary to satisfy the specification that the radius of curvature (R) When the cable is installed in the field, it can be installed at a radius of curvature (R) satisfying the above-mentioned specifications.

In addition, since the banding measuring apparatus of the present invention is constructed so that each of the body parts 110 and 120 can extend, the curvature measuring device is excessively small compared to the size of the banding pipe 10, It is possible to precisely measure the curvature of the banding pipe regardless of whether the measuring instrument is excessively large or not.

On the other hand, the banding measuring apparatus of the present invention is not limited to being capable of measuring only the bending portion of the banding pipe described above.

That is, it is also possible to check the curvature of the circular product 20 as shown in FIG. 6, and the measurement for confirming the curvature at this time is the same as the measurement method for confirming the curvature of the banding pipe 10 .

As described above, the banding measuring apparatus of the present invention can be used for various purposes.

10. Bending Pipe 20. Circular Product
110. First body part 120. Second body part
111, 121. Display line 130. Rotating pin
200. Angle checking section 210. Display window
220. Input button 300. Measuring tape measure
310. Tape measure case 320. Cylinder
400. Retention part 410. Retaining groove

Claims (5)

Two body parts, one end of which is widened or closably connected to another;
An angle confirmation unit for confirming a flaring angle of the two body parts;
A tape measure provided for measuring the length of the arc of the banding part while contacting the surface of the banding part by drawing or winding on the end of one of the two body parts;
And a restraining part provided at an end of the other body part of the two body parts to restrain the end of the measuring tape. The method according to claim 1,
The angle checking unit
And a digital angle sensor for sensing and displaying a relative rotation angle between the two body parts. 3. The method of claim 2,
Wherein the angle checking unit is configured to receive a length of a call with respect to a banding part to be measured and to read a curvature of the banding part based on the length of the received call and the sensed angle, Measuring device. The method according to claim 1,
Wherein the two body portions are formed in a telescopic structure so as to be elongated in the longitudinal direction. The method according to claim 1 or 4,
Wherein a plurality of display lines are formed around the two body parts to display a scale printed on the measuring tape measure so as to be read accurately.
KR1020160181954A 2016-12-29 2016-12-29 bending portion measuring apparatus KR101874823B1 (en)

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Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101377365B1 (en) 2012-10-15 2014-03-21 금호타이어 주식회사 Measuring device for hexagonal structure
KR101411505B1 (en) 2013-01-17 2014-07-03 삼성중공업 주식회사 Measuring Apparatus for Bending Radius

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101377365B1 (en) 2012-10-15 2014-03-21 금호타이어 주식회사 Measuring device for hexagonal structure
KR101411505B1 (en) 2013-01-17 2014-07-03 삼성중공업 주식회사 Measuring Apparatus for Bending Radius

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