KR20170079254A - Spherical surface measuring apparatus - Google Patents

Spherical surface measuring apparatus Download PDF

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Publication number
KR20170079254A
KR20170079254A KR1020150189622A KR20150189622A KR20170079254A KR 20170079254 A KR20170079254 A KR 20170079254A KR 1020150189622 A KR1020150189622 A KR 1020150189622A KR 20150189622 A KR20150189622 A KR 20150189622A KR 20170079254 A KR20170079254 A KR 20170079254A
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South Korea
Prior art keywords
fastening
hole
measuring
measurement
spherical
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KR1020150189622A
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Korean (ko)
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KR101796842B1 (en
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김종민
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김종민
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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
    • 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
    • G01B5/22—Spherometers
    • 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
    • G01B3/22—Feeler-pin gauges, e.g. dial gauges
    • 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
    • G01B5/201—Measuring arrangements characterised by the use of mechanical techniques for measuring contours or curvatures for measuring roundness
    • 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
    • G01B5/213—Measuring arrangements characterised by the use of mechanical techniques for measuring contours or curvatures for measuring radius of curvature

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • A Measuring Device Byusing Mechanical Method (AREA)
  • Length-Measuring Instruments Using Mechanical Means (AREA)

Abstract

The present invention relates to a spherical measuring device which is mounted and fixed to a stem of a conventional dial gauge to make it possible to measure not only the diameter of a ball, a spherical surface or a groove, but also the roundness of the surface in a stable, fast and precise manner.
A stationary ring 13 extending outward is formed at the outer diameter of the central portion of the cylindrical housing 11 holding the fixing hole 12 communicating with the central portion in the longitudinal direction so that the lower end of the housing 11 is connected to the cylindrical reference tube 14, And a plurality of fastening holes 16 communicating with the fixed ring 13 in the longitudinal direction are formed in the upper end of the housing 11 at the same distance (10) for retaining the retainer (10); A plurality of fastening female threads 24 communicating with the outside in the longitudinal direction are formed at the center of the measuring hole 21 so as to maintain the same distance from the center of the measuring hole 21, (20) formed by protruding a protrusion (22); The stem 32 of the dial gauge 30 is fixed with a fastening screw B fastened to the fixing female thread 15 in a state where the stem 32 of the dial gauge 30 is inserted into the fastening hole 12 of the fastener 10, The fastening screw B is inserted into the fastening hole 16 and fastened to the fastening female screw 24 while the reference tube 14 is inserted into the reference hole 23 of the fixing hole 10, And is fastened and fixed to the lower end portion.

Description

[0001] Spherical surface measuring apparatus [

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a spherical measuring device, which is mounted and fixed to a stem of a conventional dial gauge to thereby measure not only the diameter of a ball, a spherical surface or a spherical surface, but also the roundness of the surface in a stable, .

In general, ball or spherical measurement is most often done by measuring the arc length and the length of the arc of the object to be measured and calculating the radius of curvature. However, this method is most useful when measuring the arc length and string length , The measurement error is generated, and as a result, it is difficult to measure the exact length to be measured, and only a rough average length measurement is possible

Conventionally, a three-dimensional measuring device is used to check the dimensions such as the curvature and the concentricity of the curved surface. The three-dimensional measuring device measures the curvature and concentricity of the curved surface in a precise manner However, such a three-dimensional measuring instrument is an expensive apparatus, and a manufacturer is requesting a laboratory or a company having a three-dimensional measuring instrument for inspection, rather than purchasing a three-dimensional measuring instrument for inspection.

In addition, when measuring a curved surface, a three-dimensional measuring device tends to change the three-dimensional position of the curved surface according to the force applied to the measuring tip of the three-dimensional measuring device, so that the average value measured by several tests is the result of the curvature and concentricity do. Therefore, it takes time and expense until the inspection is commissioned and results are produced, and when the manufactured measurement object is defective, it takes more time and cost.

In addition, in the case of workpieces processed through machine tools such as NC or CNC, precise measurement of the dimensions is carried out for the parts where the dimensions must be accurate after production. Among them, the shape of the object to be inspected is curved It is understood that a separate measuring device is needed to make the measurement of the curved surface quick and precise.

In order to confirm whether the curved surface is made concentric with the curved surface and whether the curved surface is made to have the same radius of curvature, The curvature and concentricity are measured together.

Recently, as can be seen from the "shape measurement gauge ", which is filed as an example, the shape measurement for measuring the length and width of a spherical surface or a chamfer while being in contact with the shape of the measurement surface A gauge comprising: a base sleeve that is in contact with a measurement surface of a workpiece to be measured and serves as a reference surface for measurement; a measurement tool for contacting with a shaft and a spherical surface while sliding on an inner circumference of the base sleeve; An operating means which is operated in accordance with the movement of the measuring port, a dial gauge which moves the guide according to the operation of the dial, Between the fixed bushing fixed to the lower end of the dial gauge and the actuating means, So that it is possible to effectively measure the length and width of the workpiece shape which is difficult to measure, such as a spherical surface or a chamfer, thereby shortening the measurement time and contributing to quality improvement There is a "

However, since the above-mentioned prior art technique is somewhat complicated, the workpiece is indirectly transmitted to the dial gauge, resulting in a decrease in precision. In addition, since it is possible to measure concave curved surfaces, it is impossible to measure spherical surfaces such as balls. As can be seen from the "apparatus for measuring the radius of curvature" of the registered utility model No. 20-0168896 filed in the prior art for the purpose of supplementing the problem, there is a problem in that " A dial gauge (10) having a probe (5) movable up and down, the dial gauge (10) outputting the upper and lower displacements of the probe (5) to the outside, and a dial gauge And both lower ends thereof are formed at the same level as the lower end of the probe 5, while both ends of the probe 5 are bent at the same level as the lower end of the probe 5, And a frame (20) fixed so as to be positioned at a predetermined distance from each other. By configuring a curvature radius measuring device, it is possible to provide a robot having a simple configuration, It is possible to measure the radius of curvature easily, and it is possible to obtain a precise measurement value by preliminarily preparing by adjusting the size of the frame 20. Further, since the change of the radius of curvature can be measured, It is possible to obtain an accurate curvature by correcting only the portion.

However, in the above-mentioned prior art, only the curvature of the curved surface can be measured, but only the size of the curved surface can be measured. Therefore, it is impossible to measure the curvature of the curved surface having a diameter smaller than the distance of the bent portion because the size of the curved surface that can be measured is limited. There is a problem in that it is not suitable for use in various measurement ranges and there is a problem in that it can not be applied in real time to a large number of workpieces processed by a machine tool such as a ball or a hemisphere, And the user who uses it does not offer a solution.

KR Patent No. 10-0218793 KR registered utility model 20-0168896

The present invention has been made in order to solve the above-mentioned problems, and it is an object of the present invention to provide a dial gauge which fixes a fixture on an outer diameter of a spindle of a conventional dial gauge and removes a fixture having a reference hole at a lower end thereof, The present invention provides a spherical measuring device capable of quickly and accurately measuring a curved surface of various sizes by easily attaching and detaching a fixture.

In addition, it is possible to measure both spherical and grooved diameters such as balls with a single measuring device, as well as to maintain a low cost gauge for spherical measurement that enables stable, rapid and precise measurement of the roundness of the curved surface. To be used in the machining industry.

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

The spherical measuring apparatus of the present invention, which is presented as a means for solving the above problem, comprises a cylindrical housing (11) holding a fixing hole (12) communicating in a longitudinal direction in a central portion, and a fixed ring (13) A lower end of the housing 11 is divided into a cylindrical reference tube 14 and a fixing female screw 15 communicating with the fixing hole 12 is formed on the upper end of the housing 11 at an outer diameter, A fastener (10) for forming a plurality of connecting holes (16) communicating with each other so as to maintain the same distance at the center;

A plurality of fastening female threads 24 communicating with the outside in the longitudinal direction are formed at the center of the measuring hole 21 so as to maintain the same distance from the center of the measuring hole 21, (20) formed by protruding a protrusion (22);

The stem 32 of the dial gauge 30 constituted by the spindle 33 which slides into the stem 32 protruding to one side of the gauge body 31 is inserted into the fixing hole 12 of the fixing member 10 Tightening the fastening screw B in a state in which the reference tube 14 is inserted into the reference hole 23 of the measuring instrument 20 while the fastening screw B fastened to the fixed female thread 15 is fastened Is inserted into the hole (16) and is fastened to the fastening female screw (24) so that the measuring mouth (20) is fastened and fixed to the lower end of the fastener (10).

In this case, the reference port 22 may be formed of a reference ring 22a integrally protruding from the entire edge of the lower end of the measurement ring 21, or may have the same distance from the center as the lower end of the measurement ring 21 And a plurality of reference pins 22b are fastened to the positions where they are held.

As described above, according to the present invention, since the measurement port having the reference port is fixedly fastened to the outer diameter of the stem of the conventional dial gauge with a fixture, the configuration is simple and the production cost is minimized, In addition, it is possible to quickly and accurately measure various sizes and curved surfaces of the surface by replacing only measuring points according to the size of the curved surface to be measured. In addition, it is possible to quickly and accurately measure the curved surface of a curved surface product, By precisely measuring the defects, it is possible to shorten the machining completion time of the manufactured parts, thereby improving the productivity and quality of the curved parts.

In addition, it is possible to measure not only the diameter of the spherical surface such as the spherical surface of the ball or the inner surface of the concave bowl, but also the roundness of the curved surface in a single measurement device, It is a very effective and advantageous device which can be used in a small scale processing industry which requires a small quantity of various kinds of products because it can measure the quality of the machined part of the curved surface quickly and precisely.

1 is an exploded perspective view showing a preferred embodiment of the present invention in which a gage main body is omitted.
2 is a cross-sectional view showing a preferred embodiment of the present invention.
Fig. 3 is an embodiment for measuring the spherical surface. Fig. 3 (a) shows a state in which a large-sized reference sphere is inserted, and Fig. Degree.
FIG. 4 (a) and FIG. 4 (b) are explanatory diagrams showing the state of measurement of spherical groove surface according to a preferred embodiment of the present invention.
5 is an exploded perspective view showing a preferred embodiment of the present invention in which a gage main body is omitted.
6 is a cross-sectional view showing another embodiment of the present invention.
7 (a) and 7 (b) are use state diagrams showing a spherical measurement state according to another embodiment of the present invention.
8 (A) and 8 (B) are explanatory diagrams showing a state of use of the spherical groove surface measurement according to another embodiment of the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It is to be understood, however, that the detailed description of known and known techniques may be omitted to avoid obscuring the subject matter of the present invention.

A typical dial gauge 30 is composed of a measurer 14 screwed to an end of a spindle 33 which can move up and down along a stem 32 protruding from the bottom of the gauge body 31 The conventional dial gauge 30 can confirm the measured value by visually confirming the position of the needle rotating the moving amount of the gauge body 31 as the measurer 14 moves up and down. It can be seen that the measurement value is digitally converted into numerical values in the main body 31 and the numerical value thereof can be visually confirmed to measure the moving distance.

In the spherical measuring apparatus of the present invention shown in the present invention, a measuring port 20 is fixed to a conventional dial gauge 30 with a fixing port 10,

A stationary ring 13 extending outwardly is formed at the outer diameter of the central portion of the cylindrical housing 31 holding the inner diameter 32 communicating with the central portion in the longitudinal direction as shown in Figs. 1 and 5, And a plurality of fastening holes 15 are formed at the upper end of the housing 11 so as to communicate with the stationary ring 13 in the longitudinal direction, (10) for forming a plurality of projections (16) at the same distance from the center;

A plurality of fastening female threads 24 communicating with the outside in the longitudinal direction are formed at the center of the measuring hole 21 so as to maintain the same distance from the center of the measuring hole 21, (20) formed by protruding a protrusion (22);

A stem 32 of a conventional dial gauge 30 having a measurer 34 at the end of a spindle 33 slid into the stem 32 protruding to one side of the gauge body 31 is inserted into the fixture 10 in a state in which the reference tube 14 is inserted into the reference hole 23 of the measuring hole 20 by inserting the fastening screw B into the fixing female thread 15 by inserting the fastening screw B into the fastening hole 12 of the measuring hole 20, The screw B is inserted into the fastening hole 16 and fastened to the fastening female thread 24 so that the measuring port 20 is fastened and fixed to the lower end of the fastener 10.

This is because the upper and lower positions of the fixture 10 can be easily set and quickly fixed while easily and quickly fixing the measurement tool 20 to the outer diameter of the stem 32 of the dial gauge 30, 2 and 6, the stem 32 of the ordinary dial gauge 30 is inserted into the inner diameter of the fixture 10 formed at the upper end of the measurement tool 20, and the fastening screw B And the spindle 33 of the dial gauge 30 is held at the center of the measuring port 20 so that the spindle 33 moves up and down at the center of the reference port 22 of the measuring port 20, It is possible to measure not only the diameter of the object to be measured and the roundness of the surface of the object to be measured, but also the roughness of the surface, which is in close contact with the measurer 34 at the lower end of the wafer 20.

According to the spherical measuring apparatus of the present invention having the above-described structure, the reference distance A of the reference sphere 22 protruding from the lower end of the measuring sphere 20 according to the size of the spherical surface or the spherical sphere to be measured, The measurement port 20 and the fixture 10 are separately formed as shown in FIG. 3, so that only the measurement port 20 matching the size of the measurement surface to be measured is replaced The fixture 10 and the measurement port 20 are separated from each other and joined together as shown in the configuration of the measurement port 20 according to the size of the spherical surface or spherical surface of the measurement object to be measured, (A) to overcome the measurement length limit that can be measured in the dial gauge 30 itself.

Since the diameter can be measured by the length A of the string and the displacement L1 as shown in the registered utility model publication No. 20-0168896, the diameter A can be measured by setting the distance A of the reference sphere in 10 mm increments. It is easy to know.

At this time, the procedure of fastening the fastener 10 to the dial gauge 30 or fastening and fastening the measurement tool 20 to the fastener 10 may be changed as necessary.

As shown in FIG. 1, the reference port 22 may be formed as a reference circle 22a integrally protruding from the entire edge of the lower end of the measurement ring 21, 21 at a position where the distance from the center portion to the distance between them is maintained to be the same as each other.

That is, when the reference ring 22 is formed of the reference ring 22a, even when the surface of the spherical surface or the groove is smooth, or even if a constant or irregular groove is formed on the surface, It is possible to quickly and easily measure even a novice user with a structure in which measurement of the measurement surface can be safely and quickly measured because the structure can hold a large amount of close contact surfaces adhering to the surface, When the reference pin 22 is constituted by a plurality of reference pins 22b, even when a surface of a uniform spherical surface or a groove is measured, a small number of irregular protrusions are formed on the surface, It can be seen that the structure can be quickly and precisely measured because the end portion is easily configured to be seated by avoiding the projecting portion.

At this time, the number of the reference pins 22b must be three or more so that the reference spindle 22 can be accurately mounted on the surface to be measured and the spindle 33 can be prevented from tilting. It is most preferable to use it in a simple and stable manner.

The spherical surface measuring apparatus of the present invention having the above-described structure is configured such that the reference spherical surface 22 formed at the lower end of the measuring spherical surface 20 is formed in the reference spherical surface 22a by simply replacing the measuring spherical surface 20, Or the reference pin 22b.

That is, when the measurement surface is smooth, only the reference distance A may be applied regardless of the shape of the reference hole 22. However, when the measurement surface has grooves, the measurement hole 20 constituting the reference circle 22a When the protrusion is formed on the measurement surface, it is preferable that the measurement port 20 constituting the reference pin 22b is selected and attached and detached at the lower end of the fixture 10 to process.

According to the spherical measuring apparatus of the present invention configured as described above, it is possible to perform more precise and quick measurement by differently measuring the spherical grooves formed by spherical spherical surfaces and grooves. have.

At this time, a measurement device having a reference port 22 for maintaining a reference distance A that is easy to measure in accordance with the size of the spherical surface or spherical surface is described as a premise.

Example 1) - Spherical measurement of a measuring device with measuring rings

3 (a) and 3 (b), the measurer 34 provided at the end of the spindle 33 is protruded downward from the end surface of the reference circle 22a, In order to measure the ball-shaped spherical surface, the reference button (35) provided on the dial gauge (30) is held in a state in which the end surface of the measurer (34) at the end of the spindle (33) The position of the measurer 34 is set to the reference position via the reference circle 22a and then the center of the spherical surface 2 to be measured is brought into close contact with the end surface of the measurer 34 returned to the measurement range L3, The measurement distance L1 of the spherical surface 2 to be measured is written on the dial gauge 30 so that the measured value can be known.

Example 2) - Spherical measurement of a measuring device with measuring pins

As shown in (a) and (b) of FIG. 7, since the measurer 34 provided at the end of the spindle 33 is protruded downward from the end surface of the reference pin 22b, In order to measure the spherical surface of the spindle 33, the reference button 35 provided on the dial gauge 30 is held in a state in which the end surface of the measurer 34 provided at the end of the spindle 33 is maintained at the same position as the end surface of the reference hole 22 The center of the spherical surface 2 to be measured is set to the reference position via the reference pin 22b in a state in which the end face of the measuring person 34 returned to the picked- The measurement distance L1 of the spherical surface 2 to be measured is written on the dial gauge 30 so that all the end surfaces are in close contact with the spherical surface 2 so that the measurement value can be known.

When the spherical surface of the ball is to be measured, the position of the fixture 10 to be fixed to the stem 32 is moved upward to fix the dial gauge 30, as in Embodiment 1) and Embodiment 2) The set distance L from the end face of the reference member 22 divided from the reference circle 22a or the reference pin 22b to the end face of the measurer 34 in the maximum measurement range L3, The actual measurement range L2 in which the spindle 33 is operated is shortened so that when the spherical surface 2 is to be measured, the fixture 10 is fixed to the dial gauge 30 so as to increase the actual measurement range L2. It is preferable to secure the actual measurement method L2 so that the range of the measurement distance L1 to be actually measured is widened.

Embodiment 3) - Measurement of spherical groove surface of measuring apparatus equipped with measuring ring

4 (a) and 4 (b), in order to measure the spherical groove surface 3 to be grooved, the measuring instrument 34 provided at the end of the spindle 33 is normally positioned at the end of the reference circle 22a In order to measure the groove-like spherical groove surface 3, the end surface of the measuring instrument 34 formed at the end of the spindle 33 is held at the same position as the end surface of the reference ring 22a The position of the measurer 34 is set to the reference position through the reference button 35 provided on the dial gauge 30 and then the end face of the measurer 34 is closely contacted with the center of the spherical groove surface 3 to be measured The measurement distance L1 of the spherical groove surface 3 to be measured is written on the dial gauge 30 so that the end face of the reference ring 22a is uniformly brought into close contact with the spherical groove surface 3, .

Embodiment 4) - Measurement of spherical groove surface of measuring apparatus provided with measuring pins

8 (a) and 8 (b), the spindle 33 is generally protruded downward from the end surface of the reference pin 22b in order to measure the groove surface 3 to be grooved The end face of the measuring instrument 34 at the end of the spindle 33 is held at the same position as the end face of the reference sphere 22 and the measuring instrument 34 The end face of the entire reference pin 22b is uniformly brought into close contact with the spherical groove surface 3 in a state in which the end surface of the measurer 34 is in close contact with the center of the spherical groove surface 3 to be measured The measurement distance L1 of the spherical groove surface 3 to be measured is indicated on the dial gauge 30 so that the measurement value can be known.

When the position of the fixture 10 to be fixed to the stem 32 is moved down and fixed when measuring the groove-like groove surface 3 as in the embodiment 3) and the embodiment 4) The setting from the end face of the reference sphere 22 divided into the reference circle 22a or the reference pin 22b to the end face of the measurer 34 in the maximum measuring range L3 that can be measured by the gauge 30 itself Since the distance L is shortened and the actual measurement range L2 that is the same as the set distance L at which the spindle 33 operates becomes shorter, when the spherical surface 2 is to be measured, The fixture 10 is fixed to the lower end of the stem 32 of the dial gauge 30 so that the range L2 is long so that the actual measurement method L2 is secured so that the range of the measurement distance L1 to be actually measured is wide .

When the ball-shaped spherical surface 2 is measured, the fixture 10 is formed at the lower end of the stem 32 so as to lengthen the actual measurement range L2, It is preferable to configure the fixture 10 at the upper end of the stem 32 so that the actual measurement range L2 is longer than the shape of the reference hole 22 of the spherical measurement apparatus of the present invention. It can be seen that the measurement method varies depending on the shape of the measurement object.

(2) and spherical grooves (3) can be measured precisely and quickly as required. Also, it is possible to hold the gauge for spherical measurement at low cost, By measuring the defects, it is possible to improve the quality and reduce the production cost by shortening the machining time. Therefore, it is possible to apply it uniformly throughout the machining industry and to measure the spherical and spherical grooves at a low cost and quickly and precisely It is possible to use it for the processing industry which has poor industrial condition and it is expected to be very effective.

10: fixture 11: housing
12: Fixing hole 13: Fixed ring
14: Reference tube 15: Fixed female thread
16: fastening hole 20: measuring hole
21: measurement ring 22: reference ring
22a: reference ring 22b: reference pin
23: Reference hole 24: Fastening female thread
30: dial gauge 31: gauge body
32: stem 33: spindle
34: Measurer 35: Reference button

Claims (3)

A fixed ring 13 extending outward is formed at the outer diameter of the center of the cylindrical housing 31 holding the inner diameter 32 communicating with the central portion in the longitudinal direction so that the lower end of the housing 11 is divided into a cylindrical reference tube 14 And a plurality of fastening holes 16 communicating with the stationary ring 13 in the longitudinal direction are formed at the same distance from the center of the stationary ring 13, (10);
A plurality of fastening female threads 24 communicating with the outside in the longitudinal direction are formed at the center of the measuring hole 21 so as to maintain the same distance from the center of the measuring hole 21, (20) formed by protruding a protrusion (22);
A stem 32 of a conventional dial gauge 30 constituted by a measurer 34 at the end of a spindle 33 which slides into a stem 32 protruding to one side of the gauge body 31 is inserted into the fixture 10 in a state in which the reference tube 14 is inserted into the reference hole 23 of the measuring hole 20 by inserting the fastening screw B into the fixing female thread 15 by inserting the fastening screw B into the fastening hole 12 of the measuring hole 20, Wherein the screw B is inserted into the fastening hole 16 and fastened to the fastening female screw 24 so that the measuring port 20 is fastened and fixed to the lower end of the fastener 10.
The method of claim 1, further comprising:
And the reference sphere (22) is constituted by a reference sphere (22a) integrally projected on the entire rim of the lower end of the measurement ring (21).
The method of claim 1, further comprising:
And a plurality of reference pins (22b) are fastened to the lower end of the measurement ring (21) at a position where the distance between the reference hole (22) and the distance from the center is the same. .
KR1020150189622A 2015-12-30 2015-12-30 Spherical surface measuring apparatus KR101796842B1 (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109724497A (en) * 2017-10-30 2019-05-07 成都凯天电子股份有限公司 The method of on-line checking inner sphere radius value
CN110260764A (en) * 2019-06-25 2019-09-20 麦斯克电子材料有限公司 A kind of measuring tool for the horizontal crystal orientation positioning of crystal bar

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR200168896Y1 (en) 1999-08-24 2000-02-15 포스코신기술연구조합 Device for measuring a radius of curvature
JP2003185403A (en) * 2001-12-18 2003-07-03 Olympus Optical Co Ltd Method and apparatus for measuring spherical surface of optical element
KR200448425Y1 (en) 2008-10-13 2010-04-09 류만열 Surface measuring equipment

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109724497A (en) * 2017-10-30 2019-05-07 成都凯天电子股份有限公司 The method of on-line checking inner sphere radius value
CN109724497B (en) * 2017-10-30 2023-10-24 成都凯天电子股份有限公司 Method for online detecting radius value of inner sphere
CN110260764A (en) * 2019-06-25 2019-09-20 麦斯克电子材料有限公司 A kind of measuring tool for the horizontal crystal orientation positioning of crystal bar
CN110260764B (en) * 2019-06-25 2024-02-06 麦斯克电子材料股份有限公司 Measuring tool for horizontal crystal orientation positioning of crystal bar

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