KR20150088924A - Roundness measuring system of large bearing - Google Patents

Roundness measuring system of large bearing Download PDF

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Publication number
KR20150088924A
KR20150088924A KR1020140008702A KR20140008702A KR20150088924A KR 20150088924 A KR20150088924 A KR 20150088924A KR 1020140008702 A KR1020140008702 A KR 1020140008702A KR 20140008702 A KR20140008702 A KR 20140008702A KR 20150088924 A KR20150088924 A KR 20150088924A
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KR
South Korea
Prior art keywords
large bearing
roundness
displacement sensor
measuring
center line
Prior art date
Application number
KR1020140008702A
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Korean (ko)
Inventor
신흥철
박우상
조성기
Original Assignee
(주)기흥기계
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Publication date
Application filed by (주)기흥기계 filed Critical (주)기흥기계
Priority to KR1020140008702A priority Critical patent/KR20150088924A/en
Publication of KR20150088924A publication Critical patent/KR20150088924A/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
    • 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
    • G01B5/28—Measuring arrangements characterised by the use of mechanical techniques for measuring roughness or irregularity of surfaces

Abstract

The present invention relates to a system for measuring the roundness of large bearings using a displacement sensor.
A precision measurement system using a specimen of a large bearing of the present invention includes a table on which a large bearing is placed and which is rotatably installed; A master bar vertically erected in the center of the large bearing; The center line position of the master bar is calculated and the center line position of the master bar is calculated by calculating the distance from the center line to the inner or outer diametric position, sensor; And a control unit for calculating the roundness of the large bearing from the data of the displacement sensor.

Description

[0001] ROUNDNESS MEASURING SYSTEM OF LARGE BEARING [0002]

The present invention relates to a system for measuring the roundness of large bearings using a displacement sensor.

In general, it is preferable that the rotating body and the bearings supporting the shaft of the rotating body are made of a circular arc so that the rotating body and the shaft rotate smoothly by preventing the shaft vibration and reducing the vibration. Roundness measuring devices are used to measure the roundness of these rotors and bearings. A conventional roundness measuring device is configured to measure the roundness of a measurement object by rotating a circumferential machined product, a rotation shaft of a motor, or a main shaft of a machine tool.

Japanese Patent Application Laid-Open No. 10-2011-0057308 (name: universal outer diameter measuring device) has a body; A lower jig pin provided on a front side of the body to support a lower portion of the measured object; A vertical axis fixed to a rear side of the body; A rear supporting part provided on the vertical side so as to be vertically movable and adjustable in position and provided with a rear supporting plate for supporting a rear surface of the measured object; A side support portion provided on the rear support plate to be movable from side to side to support a side portion of the measured object; And a measurer including a measurer for measuring the outer diameter of the object to be measured, the position being adjustable in the vertical axis and being adjustable in position and supported by the lower grip and the back support plate. As shown in FIG. 1, most of the measurement of the outer diameter is performed by a worker inspecting the dimensions of the product. Therefore, there is a problem in that a measurement error is likely to occur according to skill of a worker, and a measurement time is long, resulting in a significant decrease in productivity.

Particularly, the above methods are difficult to apply because the inspection speed is very slow, and the outer diameter measurement can not be accurately relied on and can be supplied as a defective product, thereby causing a problem that the reliability of the product is greatly reduced.

SUMMARY OF THE INVENTION An object of the present invention is to measure the roundness of a large bearing using a displacement sensor by measuring a distance from a cylindrical centerline to an inner diameter or an outer diameter to thereby measure the roundness, So as to improve the measurement precision.

A system for measuring the roundness of a large bearing disclosed in a first embodiment of the present invention includes a table on which a large bearing is placed and which is rotatably installed; A master bar vertically erected in the center of the large bearing; The center line position of the master bar is calculated and the center line position of the master bar is calculated by calculating the distance from the center line to the inner or outer diametric position, sensor; And a control unit for calculating the roundness of the large bearing from the data of the displacement sensor.

Preferably, the displacement sensor is horizontally movable from the center line to an inner diameter or an outer diameter. The displacement sensor recognizes the center line of the master bar, and can measure the roundness while moving in one direction by contacting one surface of the inner or outer diameter of the large bearing.

Preferably, the displacement sensor recognizes the position of the center line, contacts one surface of the inner or outer diameter of the large bearing, and measures the entire roundness by measuring the distance between the inner diameter or the outer diameter along the rotating direction of the rotating large bearing .

The circularity measuring system of the large bearing disclosed in the second embodiment of the present invention comprises a table on which a large bearing is placed and which is rotatably installed; A displacement sensor for measuring a machining surface located on a race surface side of the large bearing rotating; A measuring unit comprising at least one contact pin contacting one surface of the large bearing, at least one juncture connected in parallel to measure a wobble error of the large bearing rotating in connection with the contact pin, and at least one displacement sensor connected to each juncture; And a control unit for calculating the roundness of the large bearing from the data of the displacement sensor.

Preferably, the measuring unit may be installed at one or more sides of a large rotating bearing. The measuring part can measure the shaking error data transmitted from the contact pin contacting one surface of the rotating large bearing.

Preferably, the control unit calculates the roundness of the entire large bearing by calculating the blur error data transmitted from the measuring unit.

According to the structure of the present invention described above, it is possible to provide a displacement sensor for measuring the roundness of a large bearing to measure the distance between the center line and the inner or outer diameter of the large bearing, or measure and verify the roundness while rotating the large bearing , It is possible to quickly measure the entire roundness of the large bearing as the measurement object and to easily verify the measured roundness.

Further, there is an effect that the defect ratio of the product is reduced by precisely measuring the roundness of the large bearing of the present invention.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a view showing a conventional outer diameter measuring apparatus. FIG.
2 is a schematic view of a system for measuring the roundness of a large bearing according to a first embodiment of the present invention.
3 is a front view showing roundness measurement of a large bearing according to a first embodiment of the present invention;
4 is a schematic view of a system for measuring the roundness of a large bearing according to a second embodiment of the present invention.

For the embodiments of the invention disclosed herein, specific structural and functional descriptions are set forth for the purpose of describing an embodiment of the invention only, and it is to be understood that the embodiments of the invention may be practiced in various forms, The present invention should not be construed as limited to the embodiments described in Figs.

The present invention is capable of various modifications and various forms, and specific embodiments are illustrated in the drawings and described in detail in the text. It is to be understood, however, that the invention is not intended to be limited to the particular forms disclosed, but on the contrary, is intended to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the invention.

The core of the circularity measuring system of the large bearing disclosed in the present invention is a circularity measuring system of a large bearing capable of measuring the roundness of a large bearing by automatically measuring the inner or outer diameter roundness of the large bearing using a displacement sensor .

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

2 to 3, the circularity measuring system of the large bearing 10 according to the first embodiment of the present invention includes a table 110, a master bar 120, a displacement sensor 130, a controller 140).

First, the table 110 on which the large bearings 10 are seated can be rotatably installed.

And the master bar 120 may be erected vertically in the center of the large bearing 10. [ The master bar 120 is of a straight shape in which the large bearings 10 are placed on the table 110 and are erected perpendicular to the center of the table 110.

The master bar 120 vertically installed at the center of the large bearing 10 can be vertically erected through the fastening portion. At this time, the center vertical line of the master bar 120 may be the center line 122.

In the roundness measurement of the large bearing 10, the displacement sensor 130 can recognize the center line 122 of the master bar 120. The displacement sensor 130 recognizes the position of the center line 122 and the displacement sensor 130 can be moved horizontally toward the inner or outer diameter side of the large bearing 10. [

The displacement sensor 130 recognizes the center line 122 of the master bar 120 and recognizes the inner diameter or outer diameter of the large bearing 10 to recognize the distance from the center line 122 to the inner diameter or outer diameter have. More specifically, the displacement sensor 130 calculates the coordinates of the center line 122 of the master bar 120, calculates the distance from the center line 122 to the inner or outer diametric position, have.

The displacement sensor 130 recognizes the center line 122 of the master bar 120 and contacts one surface of the inner or outer diameter of the large bearing 10 to move in one direction And the roundness can be measured. The displacement sensor 130 recognizes the center line 122 and moves to the inner diameter or outer diameter side of one side to store the separation distance. After the displacement sensor 130 moves to one side, the displacement distance between the center line 122 and the inner diameter or outer diameter is stored So that the roundness of the entire large bearing 10 can be measured.

The displacement sensor 130 recognizes the position of the center line 122 and contacts one surface of the inner or outer diameter of the large bearing 10, The total circularity can be measured.

The displacement sensor 130 may be disposed at an appropriate angle with respect to the rotational direction of the large bearing 10 so as to measure the entire roundness over the entire range (full range of the circumference) with respect to the rotational direction of the large bearing 10 have.

At this time, the control unit 140 may be configured to calculate the roundness of the large bearing 10 from the data of the displacement sensor 130. The control unit 140 can calculate the total roundness by summing the distances from the center line 122 measured by the displacement sensor 130 to the inner diameter or the outer diameter so as to accurately measure the roundness of the large bearing 10, It is possible to improve the rotating performance of the large bearing 10 and to prolong the service life of the rotating body.

4, the circularity measuring system of the large bearing 10 according to the second embodiment of the present invention includes a table 210, a displacement sensor 220 for measuring a work surface, a measuring unit 230, And a control unit 240 as main parts.

First, the table 210 on which the large bearings 10 are seated can be rotatably installed.

Then, the displacement sensor 220 can be positioned on the side of the race surface 20 of the rotating large-size bearing 10 to measure the outer diameter.

The displacement sensor 220 can be measured by sensing the circularity of the rotating large bearing 10. The displacement sensor 220 is provided outside the rotating direction of the large-size bearing 10 rotating.

The measuring unit 230 includes a contact pin 232 contacting the one surface of the large bearing 10 and one or more jaws 252 connected in parallel to measure the shaking error of the large bearing 10 connected to the contact pin 232, And one or more displacement sensors 220 connected to the respective shafts 234 and 234, respectively.

The contact pin 232 contacting the one side of the large bearing 10 is in contact with the large bearing 10. The contact pin 232 is a noncontact type May be applied.

The measuring unit 230 can be disposed at an appropriate angle with respect to the rotational direction of the large bearing 10 so that the entire roundness can be measured over the entire range (full range of the circumference) with respect to the rotational direction of the large bearing 10 .

To measure the large bearing 10, a juncture 234 and a displacement sensor 220 may be installed as shown in FIG. The juncture 234 and the displacement sensor 220 can measure the roundness of the large bearing 10 and measure only the shaking error of the large bearing 10. [

The measuring unit 230 may be installed on one side of the rotating large bearing 10 in one or more directions.

The measurement unit 230 may measure the shaking error data transmitted from the contact pins 232 contacting one surface of the rotating large bearing 10. [

The roundness measuring apparatus according to the present invention includes a contact pin 232 for measuring the roundness of a large bearing 10 to which a measuring unit 230 is attached to a large bearing 10, a jaw 234 and a displacement sensor 220, And a control unit 240 that electrically connects and calculates and verifies the overall roundness of the large bearing 10 from the signal of the displacement sensor 220.

The control unit 240 may calculate the roundness of the large bearing 10 from the data of the displacement sensor 220. The control unit 240 may calculate the roundness of the entire large bearing 10 by calculating the blur error data transmitted from the measuring unit 230.

The circularity measurement of the large bearing according to the second embodiment of the present invention can measure the shaking error of the large bearing 10 using the displacement sensor 220 and effectively verify the measured shaking error.

The circularity measuring system of the large bearing of the present invention can improve the reliability of the roundness measurement value of the large bearing 10 and can easily analyze the roundness through the measured roundness value.

While the present invention has been particularly shown and described with reference to preferred embodiments thereof, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims. It will be appreciated by those skilled in the art that numerous changes and modifications may be made without departing from the invention. And all such modifications and changes as fall within the scope of the present invention are therefore to be regarded as being within the scope of the present invention.

10: Large bearing 20: Lace face
110: Table 120: Master bar
122: center line 130: displacement sensor
140: control unit 210: table
220: Displacement sensor 230:
232: contact pin 234:
240:

Claims (8)

A table on which a large bearing is placed and which is rotatably installed;
A master bar vertically erected in the center of the large bearing;
The center line position of the master bar is calculated and the center line position of the master bar is calculated by calculating the distance from the center line to the inner or outer diametric position, sensor;
And a control unit for calculating the roundness of the large bearing from the data of the displacement sensor. The method according to claim 1,
The displacement sensor includes:
Moving horizontally from the center line to the inner or outer diameter,
Roundness measuring system for large bearings. The method according to claim 1,
The displacement sensor includes:
Recognizing the center line of the master bar,
A large bearing is contacted with one side of an inner or outer diameter and moved in one direction,
Roundness measuring system for large bearings. The method according to claim 1,
The displacement sensor includes:
Recognizing the position of the center line,
Contacting one surface of the inner or outer diameter of the large bearing,
Measuring the overall roundness by measuring the distance between the inner or outer diameter along the direction of rotation of the rotating large bearing,
Roundness measuring system for large bearings. A table on which a large bearing is placed and which is rotatably installed;
A displacement sensor for measuring a machining surface located on a race surface side of the large bearing rotating;
A measuring unit comprising at least one contact pin contacting one surface of the large bearing, at least one juncture connected in parallel to measure a wobble error of the large bearing rotating in connection with the contact pin, and at least one displacement sensor connected to each juncture;
And a control unit for calculating the roundness of the large bearing from the data of the displacement sensor. 6. The method of claim 5,
Wherein the measuring unit comprises:
One or more of which are installed on one side of the rotating large bearing,
Roundness measuring system for large bearings. 6. The method of claim 5,
Wherein the measuring unit comprises:
Measuring the shaking error data transmitted from the contact pin contacting one surface of the rotating large bearing,
Roundness measuring system for large bearings. 6. The method of claim 5,
Wherein,
Calculating the roundness error of the entire large bearing by calculating the blur error data transmitted from the measuring unit,
Roundness measuring system for large bearings.

KR1020140008702A 2014-01-24 2014-01-24 Roundness measuring system of large bearing KR20150088924A (en)

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KR1020140008702A KR20150088924A (en) 2014-01-24 2014-01-24 Roundness measuring system of large bearing

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Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107021322A (en) * 2017-06-02 2017-08-08 海宁上通优必胜轴承有限公司 A kind of detection pipeline of axle sleeve
CN109186427A (en) * 2018-09-28 2019-01-11 中船重工（武汉）船舶与海洋工程装备设计有限公司 A kind of shafting brearing bore center line detecting tooling and detection method
CN110470262A (en) * 2019-08-12 2019-11-19 安徽爱克瑞重工科技有限公司 A kind of feeding assembly detection device of high degree of automation
KR102074701B1 (en) * 2019-10-28 2020-02-07 황상현 Device for measuring the deviation of inner diameter and outer diameter
CN111033172A (en) * 2017-06-28 2020-04-17 微控光谱物理学公司 Method and apparatus for generating a pulse signal at a specific position of a moving part
CN111609820A (en) * 2020-07-15 2020-09-01 马程 Diversified check out test set of bearing
CN114877849A (en) * 2022-05-27 2022-08-09 包头钢铁（集团）有限责任公司 Method for measuring roundness of upper steel structure of annular heating furnace by total station
CN116202468A (en) * 2023-05-04 2023-06-02 牧铭智能制造(山东)有限公司 Slewing bearing debugging mechanism

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107021322A (en) * 2017-06-02 2017-08-08 海宁上通优必胜轴承有限公司 A kind of detection pipeline of axle sleeve
CN107021322B (en) * 2017-06-02 2022-08-23 海宁上通优必胜轴承有限公司 Detection transfer chain of axle sleeve
CN111033172A (en) * 2017-06-28 2020-04-17 微控光谱物理学公司 Method and apparatus for generating a pulse signal at a specific position of a moving part
CN109186427A (en) * 2018-09-28 2019-01-11 中船重工（武汉）船舶与海洋工程装备设计有限公司 A kind of shafting brearing bore center line detecting tooling and detection method
CN110470262A (en) * 2019-08-12 2019-11-19 安徽爱克瑞重工科技有限公司 A kind of feeding assembly detection device of high degree of automation
CN110470262B (en) * 2019-08-12 2021-04-06 安徽爱克瑞重工科技有限公司 Feeding assembly detection equipment with high automation degree
KR102074701B1 (en) * 2019-10-28 2020-02-07 황상현 Device for measuring the deviation of inner diameter and outer diameter
CN111609820A (en) * 2020-07-15 2020-09-01 马程 Diversified check out test set of bearing
CN114877849A (en) * 2022-05-27 2022-08-09 包头钢铁（集团）有限责任公司 Method for measuring roundness of upper steel structure of annular heating furnace by total station
CN116202468A (en) * 2023-05-04 2023-06-02 牧铭智能制造(山东)有限公司 Slewing bearing debugging mechanism
CN116202468B (en) * 2023-05-04 2023-08-15 牧铭智能制造(山东)有限公司 Slewing bearing debugging mechanism

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