KR101305057B1 - Inside or outside diameter measuring device for bearing - Google Patents

Inside or outside diameter measuring device for bearing Download PDF

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Publication number
KR101305057B1
KR101305057B1 KR1020120056816A KR20120056816A KR101305057B1 KR 101305057 B1 KR101305057 B1 KR 101305057B1 KR 1020120056816 A KR1020120056816 A KR 1020120056816A KR 20120056816 A KR20120056816 A KR 20120056816A KR 101305057 B1 KR101305057 B1 KR 101305057B1
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KR
South Korea
Prior art keywords
measuring
bearing
ball
diameter
guide
Prior art date
Application number
KR1020120056816A
Other languages
Korean (ko)
Inventor
박상영
최영
Original Assignee
박상영
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Application filed by 박상영 filed Critical 박상영
Priority to KR1020120056816A priority Critical patent/KR101305057B1/en
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Publication of KR101305057B1 publication Critical patent/KR101305057B1/en

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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23QDETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q17/00Arrangements for observing, indicating or measuring on machine tools
    • B23Q17/20Arrangements for observing, indicating or measuring on machine tools for indicating or measuring workpiece characteristics, e.g. contour, dimension, hardness
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01BMEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B5/00Measuring arrangements characterised by the use of mechanical means
    • G01B5/08Measuring arrangements characterised by the use of mechanical means for measuring diameters
    • G01B5/12Measuring arrangements characterised by the use of mechanical means for measuring diameters internal diameters
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01BMEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B5/00Measuring arrangements characterised by the use of mechanical means
    • G01B5/20Measuring arrangements characterised by the use of mechanical means for measuring contours or curvatures
    • G01B5/201Measuring arrangements characterised by the use of mechanical means for measuring contours or curvatures for measuring roundness
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01MTESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M13/00Testing of machine parts
    • G01M13/04Bearings
    • G01M13/045Acoustic or vibration analysis

Abstract

The present invention is fixed to the base plate, the main frame fixed to the base plate, and the main frame so as to be spaced apart from the base plate, and arranged at least six measuring balls in contact with the inner or outer diameter of the bearing to be measured at equal intervals, measuring ball Inner / outer diameter measuring means for detecting the movement displacement by means of the displacement sensing means to measure the inner or outer diameter of the bearing, and bearing supply means for supplying a bearing to be measured by the inner / outer diameter measuring means, The measuring means includes a measuring fixing guide which is formed in an open shape so that the measuring ball is moved in one direction when the bearing to be measured and the measuring ball come into contact with each other while maintaining a fixed position fixed to the main frame; Receive the measuring ball while being held in a fixed position and part of the received measuring ball It is provided with a ball retainer having an opening for contact with one side of the bearing to be defined, and formed to surround the open portion of the measuring fixing guide to accommodate the measuring ball, and having an inclined surface in contact with the measuring ball to determine whether the inclined surface and the measuring ball are in contact with each other. A measuring guide which is moved upwardly or downwardly, and which is connected between the measuring guide and the displacement sensing means to transmit the displacement of the measuring guide by the measuring ball, and is provided between the measuring member and the measuring fixing guide and is fixed at a predetermined interval by elasticity. It is characterized in that the measurement spring is included so that the displacement can be generated by the measuring ball while being maintained.

Description

Inside or outside diameter measuring device for bearing}
The present invention relates to a bearing inner / outer diameter measurement politics that can determine whether the bearing is defective by measuring the inner or outer diameter of the bearing.
In general, the inner and outer diameters of the bearings and the inner and outer diameters of the bearings are important factors in determining the quality of the bearings.The inner and outer diameters are measured before the assembly process after the grinding process of the inner and outer rings. The bay is sorted and sent to the assembly process.
On the other hand, the measuring method of the inside / outside diameter can be largely divided into contactless and contact type, and there is a measuring method using a machine vision, a laser sensor or an eddy current sensor, and the contact type is LVDT (Linear Variable Differential Transformer) and air. The method by the micrometer and the three-point support method is mainly used.
However, in the three-point support method, which consumes less measurement time in the internal / external diameter measurement method according to the prior art, three points always form an isosceles triangle in an ideal measuring device, but in reality, an eccentric error occurs.
Therefore, when measuring the inner diameter of the bearing by using the conventional three-point support method, the accuracy of the internal / external diameter precision measurement according to the roundness is lowered, and the deviation of the measured value due to the measurement pressure deviation of the product occurs.
On the other hand, Korean Patent No. 10-0845516 discloses a device for measuring the inner / outer diameter of the bearing while moving the position of the probe by using a plurality of cylinders.
1 is a view showing an internal and external diameter measuring apparatus of a bearing according to the prior art.
Referring to the drawings, the internal and external diameter measuring apparatus of the bearing according to the prior art in the vertical direction to the body 10 and the movable plate 11 of the moving plate 11 is installed, the sliding plate 11 for sliding movement in the vertical direction. Probes 30 which are provided in a vertical direction on the pedestal 15 to be slidably movable to measure the upper and lower inner diameters of the bearings, and the probes 30 slide upward and downward to measure the upper inner diameters of the bearings. The first cylinder 50 and the probe 30 is configured to include a second cylinder 70 for sliding in the vertical direction to measure the lower inner diameter.
That is, in the prior art, the probe 30 is moved up and down to compare information detected by the probe 30 with a reference value to determine whether there is a defect.
However, the prior art as described above requires a plurality of processes for moving the position of the probe 30.
In addition, since the probe 30 is measured by contacting only a portion of the bearing, reliability of roundness may be reduced.
An object of the present invention is to provide a bearing inner / outer diameter measuring device that can measure the more accurate and accurate inner / outer diameter by reducing the effect of roundness by having a contact point of at least six points with the inner or outer diameter of the bearing.
Another object of the present invention is to provide a bearing inner / outer diameter measuring device which is easy to supply and measure and discharge the bearing to be measured.
The present invention is a base plate, the main frame fixed to the base plate, and six or more measuring balls fixed to the main frame to be spaced apart from the base plate, and in contact with the inner or outer diameter of the bearing to be measured at equal intervals And an inner / outer diameter measuring means for detecting an inner diameter or an outer diameter of the bearing by detecting a displacement of the measuring ball through a displacement detecting means, and a bearing supply means for supplying a bearing to be measured by the inner / outer diameter measuring means. The measurement fixing guide is formed in the inner / outer diameter measuring means in such a way that a part of the measuring ball is opened to move in one direction when the bearing to be measured and the measuring ball come into contact with each other while maintaining a fixed position fixed to the main frame. And the side combined with the measurement fixing guide to maintain a fixed position A ball retainer is provided to accommodate a ball, and a part of the measured measuring ball is in contact with one side of the bearing to be measured, and is formed to surround an open portion of the measuring fixing guide to accommodate the measuring ball. It is provided with an inclined surface in contact with the ball to move the measurement guide to the upper or lower side depending on whether the inclined surface and the measuring ball, and connecting the measuring guide and the displacement sensing means to transfer the displacement of the measuring guide by the measuring ball A measuring spring is provided between the measuring device and the measuring fixing guide, so that a measuring spring is provided to maintain a predetermined distance by elasticity so that a displacement of the measuring ball can be generated.
When measuring the outer diameter of the bearing to be measured, the inner / outer diameter measuring means is provided with a measuring guide and a ball retainer and a measuring fixing guide accommodating the measuring ball to surround the outer edge of the measuring target bearing so that the measuring ball is the measuring target bearing. It is characterized in that it is configured to contact the outer surface.
When measuring the inner diameter of the bearing to be measured, the inner / outer diameter measuring means is provided such that the measuring guide and the ball retainer and the measuring fixing guide for receiving the measuring ball are accommodated in the inside of the bearing to be measured so that the measuring ball is measured. It is characterized in that it is configured to contact the inner surface.
delete
According to the invention six measuring balls in contact with the bearing is configured to move in contact with the inner or outer diameter of the bearing.
Then, the displacement of the measuring ball is immediately transmitted to the measuring guide which is provided to be movable up and down, and the measuring guide transmits the displacement of the measuring ball to the displacement sensing means through the measuring member so that the inner diameter or There is an advantage that the outer diameter can be measured.
In addition, since the movement displacement of the bearing is measured using six measuring balls, the influence of roundness can be reduced, so that the inner or outer diameter of the bearing can be more accurately measured.
1 is a view showing the inside / outside diameter measuring apparatus according to the prior art.
Figure 2 is a view showing the appearance of the inside / outside diameter measuring apparatus according to the present invention.
3 and 4 are views for showing the detailed structure of the outer diameter measuring device according to the present invention.
5 and 6 are views for showing the operating structure of the outer diameter measuring device according to the present invention.
7 and 8 are views for showing a detailed structure of the inner diameter measuring apparatus according to the present invention.
9 and 10 are views for showing the operating structure of the inner diameter measuring apparatus according to the present invention.
Hereinafter, specific embodiments of the present invention will be described with reference to the drawings. It is to be understood, however, that the spirit of the invention is not limited to the embodiments shown and that those skilled in the art, upon reading and understanding the spirit of the invention, may easily suggest other embodiments within the scope of the same concept.
Figure 2 is a view showing the appearance of the inner / outer diameter measuring apparatus according to the present invention is shown in Figure 3 and Figure 4 is a view for showing the detailed structure of the outer diameter measuring apparatus according to the present invention.
Referring to these drawings, the bearing inner / outer diameter measuring device according to the present invention is to check whether the bearing (B) is defective in contact with the outer diameter or the inner diameter of the bearing to be measured (B), conveying the bearing to be measured (B) To distinguish the bearing (B) determined as defective according to whether the bearing supply means 120 and the inner / outer diameter measuring means for measuring the inner or outer diameter of the conveyed bearing (B) and the measured bearing (B) It is configured to include a bearing ejection means 140 for.
The bearing supply means 120 is a measurement block 124 for supporting the lower surface of the bearing (B) and the measurement to transfer the measurement target bearing (B) to the upper and to the inner / outer diameter measuring means to be described below measured And a bearing supply cylinder 122 for moving the block 124 up and down.
In addition, the bearing ejection means 140 is a defect extraction block 142 which moves to the left and right so as to press the measured side of the bearing (B) and the defect extraction cylinder 144 for transporting the defect extraction block 142. It is configured to include.
On the other hand, in the bearing inner / outer diameter measuring device according to the present invention, the outer diameter for measuring the outer diameter according to the measuring ball 200 and the installation position of the remaining components for accommodating the bearing (B) and the measurement ball 200 It may be divided into the measuring device 100 or the inner diameter measuring device 500 for measuring the inner diameter.
3 shows the outer diameter measuring device 100 for measuring the outer diameter of the bearing B to be measured.
Referring to the drawings, in the outer diameter measuring apparatus 100 according to the present invention, the main frame 130 is fixed to the base plate 110 to form a basic skeleton while providing a working space for measuring the bearing (B).
In addition, the main frame 130 is provided with inner / outer diameter measuring means for measuring the outer diameter in contact with the outer surface of the bearing (B).
The inner / outer diameter measuring means is fixed to the main frame 130 so that the outer surface of the bearing to be measured (B) and the above-described measuring ball 200 is in contact with the measuring ball 200 when measuring the bearing (B) It is configured to detect the movement displacement of) and compare it with the reference range.
In detail, an upper end of the main frame 130 is further provided with a fixing frame to allow the inner / outer diameter measuring means to be installed on the upper side of the bearing (B) which is installed in parallel with the base plate 110 is supplied.
In addition, a fixing bracket 230 for installing the displacement detecting means 300, which is a main component of the inner / outer diameter measuring means, and a bearing taking-out pressing plate for taking out the measured bearing B on the upper side of the fixing frame ( The press plate operating means for operating the 250 is further provided.
The fixing bracket 230 is formed to protrude upward from the end of the fixing frame is configured to fix the displacement sensing means (300).
The displacement detecting means 300 is a configuration for detecting a displacement applied by an object to be contacted in a configuration for detecting a movement displacement in order to check the movement displacement in the form of pressing the measuring member 320 to be described below. It is configured to detect the displacement of the measurer 320 according to the degree of change in the pressing force.
In addition, the bearing take-out press plate 250 is formed with a hole through which the end of the displacement sensing means 300 to maintain the position where the displacement sensing means 300 is fixed, while operating the above-mentioned press plate It is provided to be movable up and down by a means.
The pressing plate operating means is composed of a pressing plate fixing frame protruding upwardly of the fixing frame and a cylinder provided in the pressing plate fixing frame, and the end of the bearing take-out pressing plate 250 is fixed to the cylinder to move up and down. It is composed.
On the other hand, the fixing frame is formed with a hole through which the measurer 320 can be penetrated, and a guide bush (not shown) for accommodating the measurer 320 therein is further provided to correspond to the hole. .
That is, the measurer 320 is moved up and down through the hole formed in the fixed frame and the guide bush, the lower end is fastened to the measurement guide 340 to be described below when the measurement guide 340 is moved Moving together to transfer the displacement to the displacement detection means (300).
In addition, the guide bush is provided with a fastening portion 270 protruding downward and provided with three at equal intervals along the edge.
That is, the fastening part 270 is configured to maintain a fixed position coupled with the measurement fixing guide 240 to be described below, the ball retainer 220 is coupled to the measurement fixing guide 240 described above It will provide a receiving position of the measuring ball 200.
In detail, the lower end of the fastening part 270 is provided with a measurement fixing guide 240 having an inner diameter larger than the diameter of the measured bearing (B), the ball retainer 220 in the inner side of the measuring fixing guide 240 It is provided.
In addition, an opening hole having a size slightly smaller than the diameter of the measuring ball 200 is formed in the lower side of the ball retainer 220 so that a part of the measuring ball 200 is exposed.
That is, the opening hole is configured to allow a portion of the measuring ball 200 to be in contact with the measurement target bearing B without escaping to the inside of the measuring fixing guide 240, the measuring ball 200 Perforations are formed in a number corresponding to the number.
Therefore, in the present invention, six opening holes are formed in the ball retainer 220 so that the measuring balls 200 may be provided at six equal intervals.
On the other hand, one end of the measurement fixing guide 240 in contact with the ball retainer 220 is formed to be inclined, it is configured to be located above the lower end of the opening hole.
That is, the measurement fixing guide 240 and the ball retainer 220 for accommodating the measuring ball 200 do not completely surround the measuring ball 200 and form an open part.
In addition, the open portion as described above is shielded by the measurement guide 340 of the shape surrounding the measurement fixing guide 240.
In detail, the measurement guide 340 is configured to open the lower portion in the hollow cylindrical shape and the upper and side parts are configured separately and fastened to each other.
In addition, the measurer 320 is fastened to the upper portion of the measurement guide 340 formed as described above, and the hole corresponding to the fastening part 270 is formed to have a corresponding number and size of fastening holes.
Therefore, the measuring guide 340 is not connected to the fastening part 270 and thus can be moved up and down together with the measurer 320.
In addition, a measurement spring 360 is provided between the upper surface of the measurement fixing guide 240 and the upper lower surface of the measurement guide 340 to maintain a predetermined distance by elasticity.
That is, three measuring springs 360 are provided at positions such as the fastening part 370 to maintain the same spacing, so that the measuring guide 340 is elastically supported stably, and the fastening part 270 is The vertical movement path of the measurement guide 340 can be stably guided.
On the other hand, the side portion of the measurement guide 340 is formed so that the lower end protrudes inward, the upper surface of the protruding lower end is formed to be in contact with the measuring ball 200, the same as the lower end of the measurement fixing guide 240 .
The lower end of the measuring fixing guide 240 and the lower end of the measuring guide 340 are configured to be spaced apart by a predetermined interval in consideration of the diameter of the measuring ball 200.
Therefore, when the measuring ball 200 is in contact with the bearing (B) in a state exposed through the opening hole formed in the ball retainer 220, the inclined surface formed on the measuring fixing guide 240 and the measuring guide 340 The space between the inclined surface and the inclined surface of the measuring ball 200 to provide a space to move.
 5 and 6 are views for showing the operating structure of the outer diameter measuring device according to the present invention.
Referring to these drawings, as described above, since the measuring guide 340 is configured to be movable without being fixed to the fastening part 270 and is supported by the measuring spring 360, the measuring ball 200 is bearing. When pushed out by (B), the end of the measuring guide 340 is moved downward while being pressed by the measuring ball 200.
That is, as shown in FIG. 5, a gap such as “A” is formed between the lower end of the measurement fixing guide 240 and the lower end of the measurement guide 340 in a state in which the bearing B is not accommodated.
However, when the bearing (B) is accommodated in the above state as shown in Figure 6 is pushed out of the measuring guide 340 as the measuring ball 200 is pushed outward to the measurement fixing guide 240 The distance between the lower end of the) and the lower end of the measurement guide 340 is formed as "B".
In addition, as described above, the measurement guide 340 moves downward to move the measurer 320 connected to the measurement guide 340 to the lower side, and to the displacement sensing means 300 that pressurizes the measurer 320. The movement of the measurer 320 is sensed so that the displacement of the measuring device 320 can be detected.
On the other hand, the inside of the measuring fixing guide 240 is elastic between the measuring pressing plate 252 and the measuring pressing plate 252 and the upper lower surface of the measuring guide 340 to press the upper surface of the bearing (B) to be measured The take-out spring 254 is further provided so that a constant interval can be maintained by.
In detail, the measurement pressing plate 252 and the extraction spring 254 are configured to prevent the measurement target bearing (B) from being excessively received by the bearing supply means 120, the measurement ball 200 and the bearing Allow (B) to be contacted and measured at a more accurate location.
In addition, when the bearing take-out pressing plate 250 moves downward by a bearing take-out means to pressurize the measurer 320, the measuring press plate 252 moves downward by the measuring guide 340. The measured bearing B is moved to the lower side and taken out.
On the other hand, when the inner / outer diameter measuring means of the above configuration is configured to measure the inner diameter of the bearing (B) has a configuration as shown below.
7 and 8 are views for showing the detailed structure of the inner diameter measuring apparatus according to the present invention.
Referring to these drawings, in the inner diameter measuring device 500 according to the present invention, the ball retainer 220 and the measuring fixing guide 240 'and the measuring guide 340 for receiving the measuring ball 200 into the bearing B inside. A portion of the ') is configured to be accommodated.
In detail, the inner diameter measuring device 500 is provided with a measurement fixing guide 240 'to the lower side of the fixing frame, and a measurer 320' is provided to penetrate the center of the measuring fixing guide 240 '.
In addition, a measurement guide 340 'is provided at a lower end of the measuring member 320', and an end of the measurement fixing guide 240 'is positioned above the measurement guide 340', and the measurement guide 340 ' ) And the ball retainer 220 is provided to surround the outside of the measuring fixing guide 240 'so that the measuring ball 200 is accommodated in an inner space.
That is, in the inner diameter measuring apparatus 500 according to the present invention, the ball retainer 220 is positioned at the outermost portion so that the opening hole of the ball retainer 220 faces the inner diameter of the bearing B, and the aforementioned outer diameter measuring apparatus. Like 100, the inclined surface is formed at the end of the measurement fixing guide 240 ′ and the end of the measurement guide 340 ′.
On the other hand, an upper portion of the measurement fixing guide 240 in which the measuring member 320 'is accommodated is provided with a receiving space of the measuring spring 360' so that the measuring spring 360 'is fixed to the lower surface of the measuring member 320'. And is elastically supported between the guides 240 '.
In addition, a measurement pressing plate 252 'and a take-out spring 254' for pressing the upper surface of the bearing B are further provided inside the measurement fixing guide 240 'so that a stable inspection of the bearing B can be performed. To be.
9 and 10 are views for showing the operating structure of the inner diameter measuring apparatus according to the present invention.
Referring to these drawings, in the inner diameter measuring apparatus 500 according to the present invention, the gap between the measuring guide 340 'and the measuring fixing guide 240' is not equal to that in the state in which the bearing B is not received. C ″ is formed, and the measuring ball 200 is maintained to protrude outward.
However, when the bearing (B) for the measurement as shown in FIG. 10 is located in the above state, the measuring ball 200 moves inward while the measuring guide 340 'is moved downward.
When the measurement guide 340 'is moved downward as described above, the measurer 320' is moved downward to change the pressing force transmitted to the displacement sensing means 300 to measure the bearing B. It is possible to detect the movement displacement.
Therefore, it is possible to determine whether the bearing (B) is defective by detecting the movement displacement as described above and comparing it with the reference range, and the bearing (B) identified as defective is transferred in one direction through the aforementioned bearing take-out means (140). Can be distinguished.
100 ..... OD 110 ..... Base plate
120 ..... Bearing means 130 ..... Main frame
140 ..... bearing ejection means 200 ..... measuring ball
220 ..... Ball retainer 240,240 '. Measurement fixation guide
270 ..... Fastening part 300 ..... Displacement detection means
320,320 '. Measurer 340,340 '. Measurement guide
360,360 '. Measuring spring 500 ..... Internal measuring device

Claims (4)

  1. A base plate;
    A main frame fixed to the base plate;
    6 or more measuring balls fixed to the main frame to be spaced apart from the base plate and contacting the inner diameter or the outer diameter of the bearing to be measured at equal intervals, and detecting displacement of the bearing by the displacement sensing means. Inner / outer diameter measuring means for measuring an inner diameter or an outer diameter;
    Includes; bearing supply means for supplying a bearing to be measured by the inner / outer diameter measuring means,
    The inner / outer diameter measuring means,
    A measurement fixing guide which is formed in a form in which a part of the measurement ball is opened to move in one direction when the bearing to be measured and the measuring ball contact with each other while maintaining a fixed position fixed to the main frame;
    A ball retainer coupled to the measurement fixing guide to accommodate the measurement ball while maintaining a fixed position, and having an opening for opening a portion of the received measurement ball to be in contact with one side of the bearing to be measured;
    A measurement guide formed to surround an open portion of the measurement fixing guide and accommodating the measurement ball, and having an inclined surface in contact with the measuring ball and moving upward or downward depending on contact between the inclined surface and the measuring ball;
    A measurer which connects the measuring guide and the displacement detecting means to transfer a displacement of the measuring guide by a measuring ball;
    An inner / outer diameter measuring device of a bearing including a measuring spring provided between the measuring member and the measuring fixing guide to allow a displacement to be generated by the measuring ball while maintaining a predetermined distance by elasticity.
  2. According to claim 1, wherein the inner / outer diameter measuring means,
    When measuring the outer diameter of the bearing to be measured, a measuring guide and a ball retainer and a measuring fixing guide for receiving the measuring ball are provided to surround the outer edge of the bearing to be measured so that the measuring ball is configured to contact the outer surface of the bearing to be measured. Inner / outer diameter measuring device for bearings.
  3. According to claim 1, wherein the inner / outer diameter measuring means,
    When measuring the inner diameter of the bearing to be measured, a bearing configured to accommodate the measuring guide, the ball retainer and the measuring fixing guide for receiving the measuring ball in the interior of the bearing to be measured so that the measuring ball is in contact with the inner surface of the bearing to be measured. Internal / external diameter measuring device.
  4. delete
KR1020120056816A 2012-05-29 2012-05-29 Inside or outside diameter measuring device for bearing KR101305057B1 (en)

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Application Number Priority Date Filing Date Title
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Application Number Priority Date Filing Date Title
KR1020120056816A KR101305057B1 (en) 2012-05-29 2012-05-29 Inside or outside diameter measuring device for bearing

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KR101305057B1 true KR101305057B1 (en) 2013-09-11

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104048634A (en) * 2014-04-29 2014-09-17 重庆市新超力轴承有限公司 Online automatic detecting machine for bearing outer ring rail and detecting method thereof
KR101565279B1 (en) 2015-03-23 2015-11-02 박규식 Device for measurement of internal and external
CN109513631A (en) * 2018-11-22 2019-03-26 宁波市环英汽配有限公司 A kind of detection device for rocker arm shaft of automobile engine oilhole connectivity
CN109556844A (en) * 2018-11-22 2019-04-02 宁波市环英汽配有限公司 Detection device for rocker arm shaft of automobile engine oilhole connectivity
KR102004898B1 (en) * 2018-06-28 2019-07-29 일륭기공(주) Ball housing inner diameter and outer diameter measuring device

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009236571A (en) 2008-03-26 2009-10-15 Nsk Ltd Apparatus and method for measuring rotational accuracy for bearings
KR20100064482A (en) * 2008-12-05 2010-06-15 (주)유니 Hub unit bearing auto wide measuring instrument

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009236571A (en) 2008-03-26 2009-10-15 Nsk Ltd Apparatus and method for measuring rotational accuracy for bearings
KR20100064482A (en) * 2008-12-05 2010-06-15 (주)유니 Hub unit bearing auto wide measuring instrument

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104048634A (en) * 2014-04-29 2014-09-17 重庆市新超力轴承有限公司 Online automatic detecting machine for bearing outer ring rail and detecting method thereof
CN104048634B (en) * 2014-04-29 2016-08-24 重庆市新超力轴承有限公司 Bearing outer ring track online automatic detection machine and detection method thereof
KR101565279B1 (en) 2015-03-23 2015-11-02 박규식 Device for measurement of internal and external
KR102004898B1 (en) * 2018-06-28 2019-07-29 일륭기공(주) Ball housing inner diameter and outer diameter measuring device
CN109513631A (en) * 2018-11-22 2019-03-26 宁波市环英汽配有限公司 A kind of detection device for rocker arm shaft of automobile engine oilhole connectivity
CN109556844A (en) * 2018-11-22 2019-04-02 宁波市环英汽配有限公司 Detection device for rocker arm shaft of automobile engine oilhole connectivity
CN109556844B (en) * 2018-11-22 2020-08-11 宁波市环英汽配有限公司 Detection device for oil hole penetration of rocker shaft of automobile engine

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