CN202836517U - Bearing diameter and raceway radius measuring device - Google Patents

Bearing diameter and raceway radius measuring device Download PDF

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Publication number
CN202836517U
CN202836517U CN 201220277323 CN201220277323U CN202836517U CN 202836517 U CN202836517 U CN 202836517U CN 201220277323 CN201220277323 CN 201220277323 CN 201220277323 U CN201220277323 U CN 201220277323U CN 202836517 U CN202836517 U CN 202836517U
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displacement transducer
bearing
motion mechanism
line motion
data
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CN 201220277323
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Chinese (zh)
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石文华
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PSYCHOREALITY (SOOCHOW) INDUSTRIAL DESIGN STUDIO
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PSYCHOREALITY (SOOCHOW) INDUSTRIAL DESIGN STUDIO
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Abstract

The utility model relates to a bearing diameter and raceway radius measuring device. A lower portion of a frame is provided with a support, a horizontal rotation mechanism is mounted on the support, a work bench is fixed on the horizontal rotation mechanism, a left straight line motion mechanism and a right straight line motion mechanism are arranged on the frame along a vertical direction. The left straight line motion mechanism and the right straight line motion mechanism are parallel, a left outer displacement sensor used for acquiring outer surface contour coordinate data of a bearing and a left inner displacement sensor used for acquiring inner surface contour coordinate data of the bearing are mounted parallelly on the left straight line motion mechanism, a right outer displacement sensor used for acquiring outer surface contour coordinate data of the bearing and a right inner displacement sensor used for acquiring inner surface contour coordinate data of the bearing are mounted parallelly on the right straight line motion mechanism, the sensors are connected with a data processing and computer system. The bearing diameter and raceway radius measuring device carries out acquisition, analysis and processing of contour data of an inner ring and an outer ring of the bearing, and a raceway radius and a whole bearing diameter of the bearing are precisely figured out according to a plenty of data.

Description

The device of bearing diameter and raceway radius measurement
Technical field
The utility model relates to the device of a kind of bearing diameter and raceway radius measurement.
Background technology
The volume of rolling bearing is large, and is high to the precision prescribed of product, adopts at present the metering system of tall chi, because the error of manual measurement is large, and the inaccuracy of method, can only roughly measure the diameter of bearing.
Be badly in need of at present the surveying instrument of a precision of design, authentic testing and collection are carried out in the bearing inner race outer ring.
Summary of the invention
The purpose of this utility model is to overcome the deficiency that prior art exists, and the device of a kind of bearing diameter and raceway radius measurement is provided.
The purpose of this utility model is achieved through the following technical solutions:
The device of bearing diameter and raceway radius measurement, characteristics: comprise frame, horizontal rotary mechanism and worktable, the bottom of frame is equipped with movable pulley, arranged beneath in frame has support, horizontal rotary mechanism is installed on the support, be fixed with worktable on the horizontal rotary mechanism, longitudinally be furnished with left straight-line motion mechanism and right straight-line motion mechanism on the frame, left straight-line motion mechanism parallels with right straight-line motion mechanism, be equipped with side by side on the left straight-line motion mechanism for the left outside displacement transducer that gathers bearing outside surface profile coordinate data with for the left inside displacement transducer that gathers bearing inner surface profile coordinate data, be equipped with side by side on the right straight-line motion mechanism for the right outside displacement transducer that gathers bearing outside surface profile coordinate data with for the right inside displacement transducer that gathers bearing inner surface profile coordinate data, left outside displacement transducer, left inside displacement transducer, right outside displacement transducer and right inside displacement transducer are positioned on the worktable, left outside displacement transducer, left inside displacement transducer, right outside displacement transducer and right inside displacement transducer are processed and computing system by the data line connection data.
Further, the device of above-mentioned bearing diameter and raceway radius measurement, described left outside displacement transducer, left inside displacement transducer, right outside displacement transducer and right inside displacement transducer are the two-dimensional line laser displacement sensor.
The substantive distinguishing features of technical solutions of the utility model and progressive being mainly reflected in:
The utility model device carries out profile acquisition to the bearing inner race outer ring, and the data that collect are carried out preliminary analysis and processing, the mass data that obtains is calculated the last accurately raceway radius of bearing and the diameter of whole bearing in computing machine at last.The two-dimensional line laser displacement sensor carries out the coordinate collection to the profile of bearing surface, all outline datas of sensor collection are kept at computing machine, data are processed with computing system the data of preserving are searched, then that group raceway outline data that gathers when finding out the sensor process with the center of circle is justified match and is obtained the center of circle with respect to distance and the raceway radius of sensor.
Description of drawings
Below in conjunction with accompanying drawing technical solutions of the utility model are described further:
Fig. 1: structural representation of the present utility model.
Embodiment
The utility model provides the device of a kind of bearing diameter and raceway radius measurement, authentic testing and collection are carried out in the bearing inner race outer ring, and the data that collect are carried out preliminary analysis and processing, the mass data that obtains is calculated the last accurately interior road radius of bearing and the radius of whole bearing in computing machine at last.
As shown in Figure 1, the device of bearing diameter and raceway radius measurement, comprise frame 1, horizontal rotary mechanism 3 and worktable 4, the bottom of frame 1 is equipped with movable pulley, arranged beneath in frame 1 has support 2, horizontal rotary mechanism 3 is installed on the support 2, be fixed with worktable 4 on the horizontal rotary mechanism 3, longitudinally be furnished with left straight-line motion mechanism 9 and right straight-line motion mechanism 10 on the frame 1, the left straight-line motion mechanism 9 of driven by servomotor and right straight-line motion mechanism 10 move along Y-axis on surface level, left straight-line motion mechanism 9 parallels with right straight-line motion mechanism 10, be equipped with side by side on the left straight-line motion mechanism 9 for the left outside displacement transducer 5 that gathers bearing outside surface profile coordinate data with for the left inside displacement transducer 6 that gathers bearing inner surface profile coordinate data, be equipped with side by side on the right straight-line motion mechanism 10 for the right outside displacement transducer 7 that gathers bearing outside surface profile coordinate data with for the right inside displacement transducer 8 that gathers bearing inner surface profile coordinate data, left outside displacement transducer 5, left inside displacement transducer 6, right outside displacement transducer 7 and right inside displacement transducer 8 are positioned on the worktable 4, left outside displacement transducer 5, left inside displacement transducer 6, right outside displacement transducer 7 and right inside displacement transducer 8 are processed and computing system by the data line connection data; Left outside displacement transducer 5, left inside displacement transducer 6, right outside displacement transducer 7 and right inside displacement transducer 8 are the two-dimensional line laser displacement sensor.
When said apparatus carries out bearing diameter and raceway radius measurement, left outside displacement transducer 5 is a pair of with right outside displacement transducer 7, left inside displacement transducer 6 is a pair of with right inside displacement transducer 8, left outside displacement transducer 5 and right outside displacement transducer 7 detect the outer ring of bearings 11, left inside displacement transducer 6 and right inside displacement transducer 8 detect the inner ring of bearings 11, go out the coordinate of each point on the testee cross section by sensor measurement, the benchmark of coordinate be position take sensor self as benchmark, the coordinate in the center of circle of the raceway match that obtains measuring according to the coordinate of each point in the sectional profile curve lin;
If the distance between left outside displacement transducer 5 and the right outside displacement transducer 7 is L1, measure the coordinate (x1, y1) in the center of circle, (x2, y2)
Then the diameter of whole bearing is L1-y1-y2
If the distance between left inside displacement transducer 6 and the right inside displacement transducer 8 is L2, the coordinate (x3, y3) (x4, y4) in the center of circle that measures
Then the diameter of whole bearing is L2+y1+y2
Specifically may further comprise the steps:
Left straight-line motion mechanism 9 and the right straight-line motion mechanism 10 moving a bit of distance of y-axis shift longitudinally in the horizontal direction when (1) detecting, make the center of circle of light belt process bearing in moving process of sensor, left outside displacement transducer 5 gathers bearing left outer surface profile coordinate data, left inside displacement transducer 6 gathers bearing left inner surface profile coordinate data, right outside displacement transducer 7 gathers bearing right side outer surface profile coordinate data, right inside displacement transducer 8 gathers bearing right side inner surface profile coordinate data, the bearing outline data that gathers is sent to data process and the computing system preservation;
(2) after the in the horizontal direction longitudinally moving end of y-axis shift of left straight-line motion mechanism and right straight-line motion mechanism, data are processed with computing system the outline data that gathers are analyzed, and find out those group data through the center of circle; The method of outline data analysis is: find the minimum value that consists of Y direction in all coordinates of this curve for every group of contour curve
Figure 2012202773231100002DEST_PATH_IMAGE002
, with every group
Figure 687116DEST_PATH_IMAGE002
All exist among the array H, H calculates to array, finds out minimum value when bearing outer ring is measured, and finds out maximal value when bearing inner race is measured, thereby finds out that group outline data through the center of circle;
(3) according to those group data through the center of circle that obtain, justify match, obtain the center of circle with respect to the coordinate position of sensor (inner ring is the sensor on both sides, and the outer ring is two sensors of the inside) and the radius of raceway; The first method of wherein, justifying match is:
1. in the raceway profile, appoint and get three points, form a triangle, then obtain this leg-of-mutton circumscribed circle, so obtain circumscribed circle central coordinate of circle (
Figure 2012202773231100002DEST_PATH_IMAGE004
,
Figure 2012202773231100002DEST_PATH_IMAGE006
) and the distance of the center of circle to three point
Figure 2012202773231100002DEST_PATH_IMAGE008
, i.e. raceway radius;
2. 1. Repeated m is inferior for step, obtains the central coordinate of circle of circumscribed circle
Figure 2012202773231100002DEST_PATH_IMAGE010
,
Figure 2012202773231100002DEST_PATH_IMAGE012
,
Figure 2012202773231100002DEST_PATH_IMAGE014
Figure 2012202773231100002DEST_PATH_IMAGE016
,
Figure 2012202773231100002DEST_PATH_IMAGE018
,
Figure 2012202773231100002DEST_PATH_IMAGE022
And raceway radius
Figure 2012202773231100002DEST_PATH_IMAGE024
,
Figure 2012202773231100002DEST_PATH_IMAGE026
,
Figure 2012202773231100002DEST_PATH_IMAGE028
Figure DEST_PATH_IMAGE030
3. obtain at last central coordinate of circle (
Figure DEST_PATH_IMAGE032
,
Figure DEST_PATH_IMAGE034
) and the raceway radius
Figure DEST_PATH_IMAGE036
The second method of circle match is:
1. calculate first the mean value of X and Y coordinate in the raceway profile coordinate, with the X of mean value, Y is as the coordinate in the center of circle, and the coordinate that then calculates all profiles forms an array to the distance in the center of circle, and calculates the variance yields of this array
Figure DEST_PATH_IMAGE038
2. the mobile central coordinate of circle positive dirction along Y-axis in coordinate system that last time obtained obtains new central coordinate of circle take 0.001mm as unit moves, and then calculates the profile coordinate to an array of distance composition in the center of circle, and calculates the variance yields of this array
Figure 478748DEST_PATH_IMAGE040
Ratio
Figure 93400DEST_PATH_IMAGE038
When large, the central coordinate of circle before then obtains new central coordinate of circle along the negative direction of Y-axis take 0.001mm as unit moves, and then obtains new variance yields
Figure 531335DEST_PATH_IMAGE040
When
Figure 155214DEST_PATH_IMAGE040
Ratio
Figure 362204DEST_PATH_IMAGE038
Hour, the central coordinate of circle of this moment obtains new central coordinate of circle along the Y-axis negative direction take 0.001mm as unit continues to move, and obtains new variance yields
Figure DEST_PATH_IMAGE042
When Ratio
Figure 338568DEST_PATH_IMAGE040
Hour, then continuing to move along the Y-axis negative direction, the variance yields that then newly obtains and variance yields before are until find
Figure 518137DEST_PATH_IMAGE042
Ratio
Figure 845213DEST_PATH_IMAGE040
When large, the central coordinate of circle before that be decided to be (
Figure DEST_PATH_IMAGE044
,
Figure DEST_PATH_IMAGE046
);
Figure 4930DEST_PATH_IMAGE040
Ratio Hour, then continue to move along the Y-axis positive dirction, then obtain new variance yields
Figure 117560DEST_PATH_IMAGE042
, when
Figure 299142DEST_PATH_IMAGE042
Ratio
Figure 692078DEST_PATH_IMAGE040
Hour, then continuing to move along the Y-axis positive dirction, the variance yields that then newly obtains and variance yields before are until find
Figure 591900DEST_PATH_IMAGE042
Ratio
Figure 95694DEST_PATH_IMAGE040
When large, the central coordinate of circle before that be decided to be (
Figure 131783DEST_PATH_IMAGE044
,
Figure 695620DEST_PATH_IMAGE046
);
3. the central coordinate of circle of mobile step in 2. (
Figure 817159DEST_PATH_IMAGE044
,
Figure 124644DEST_PATH_IMAGE046
) positive dirction along X-axis in coordinate system obtains new central coordinate of circle take 0.001mm as unit moves, then calculate the profile coordinate and form an array to the distance in the center of circle, and calculate the variance yields of this array
Figure DEST_PATH_IMAGE048
Figure 280819DEST_PATH_IMAGE048
Ratio
Figure 15557DEST_PATH_IMAGE042
When large, the central coordinate of circle before then obtains new central coordinate of circle along the negative direction of X-axis take 0.001mm as unit moves, and then obtains new variance yields
Figure 624393DEST_PATH_IMAGE048
When
Figure 469989DEST_PATH_IMAGE048
Ratio
Figure 480670DEST_PATH_IMAGE042
Hour, the central coordinate of circle of this moment obtains new central coordinate of circle along the X-axis negative direction take 0.001mm as unit continues to move, and obtains new variance yields
Figure DEST_PATH_IMAGE050
When
Figure 386309DEST_PATH_IMAGE050
Ratio
Figure 420124DEST_PATH_IMAGE048
Hour, then continuing to move along the X-axis negative direction, the variance yields that then newly obtains and variance yields before are until find
Figure 131728DEST_PATH_IMAGE050
Ratio
Figure 200179DEST_PATH_IMAGE048
When large, the central coordinate of circle before that is desired coordinate just;
Figure 276719DEST_PATH_IMAGE048
Ratio
Figure DEST_PATH_IMAGE052
Hour, then continue to move along the X-axis positive dirction, then obtain new variance yields
Figure 532251DEST_PATH_IMAGE050
, when
Figure 985229DEST_PATH_IMAGE050
Ratio
Figure 970503DEST_PATH_IMAGE048
Hour, then continuing to move along the X-axis positive dirction, the variance yields that then newly obtains and variance yields before are until find
Figure 212085DEST_PATH_IMAGE050
Ratio When large, the central coordinate of circle before that is desired coordinate just;
(4) utilize every pair of sensor between distance and the center of circle of raceway match two circles out with respect to the distance of sensor separately, calculate two distances between the center of circle, also be the diameter of whole bearing;
(5) horizontal rotary mechanism drives bearing inner race and the outer ring rotation on the worktable, repeats above-mentioned steps (1)～(4) and obtains the raceway radius R, whole bearing diameter D;
(6) horizontal rotary mechanism drives bearing inner race and the outer ring rotation a degree on the worktable, repeats above-mentioned steps (1)～(4), rotates N=
Figure DEST_PATH_IMAGE054
Inferior, obtain
Figure DEST_PATH_IMAGE056
,
Figure DEST_PATH_IMAGE058
,
Figure DEST_PATH_IMAGE060
Figure DEST_PATH_IMAGE062
,
Figure 883686DEST_PATH_IMAGE024
,
Figure 723466DEST_PATH_IMAGE026
,
Figure DEST_PATH_IMAGE064
(7) obtain at last the raceway radius And bearing diameter
Figure DEST_PATH_IMAGE068
In movement, find the measuring position through the center of circle; According to the relative position of laser displacement sensor itself, and the image processing algorithm that projects the image of raceway simulates the radius of raceway and the center of circle with respect to the coordinate of sensor.Calculate the radius of raceway and the diameter of bearing.
Said apparatus carries out profile acquisition to the bearing inner race outer ring, and the data that collect are carried out preliminary analysis and processing, the mass data that obtains is calculated the last accurately raceway radius of bearing and the diameter of whole bearing in computing machine at last.Part of data acquisition is with the two-dimensional line laser displacement sensor profile of bearing surface to be carried out the coordinate collection, all outline datas of sensor collection are kept at computing machine, data are processed with computing system the data of preserving are searched, then that group raceway outline data that gathers when finding out the sensor process with the center of circle is justified match and is obtained the center of circle with respect to distance and the raceway radius of sensor.
What need to understand is: the above only is preferred implementation of the present utility model; for those skilled in the art; under the prerequisite that does not break away from the utility model principle; can also make some improvements and modifications, these improvements and modifications also should be considered as protection domain of the present utility model.

Claims (1)

1. the device of bearing diameter and raceway radius measurement, it is characterized in that: comprise frame, horizontal rotary mechanism and worktable, the bottom of frame is equipped with movable pulley, arranged beneath in frame has support, horizontal rotary mechanism is installed on the support, be fixed with worktable on the horizontal rotary mechanism, longitudinally be furnished with left straight-line motion mechanism and right straight-line motion mechanism on the frame, left straight-line motion mechanism parallels with right straight-line motion mechanism, be equipped with side by side on the left straight-line motion mechanism for the left outside displacement transducer that gathers bearing outside surface profile coordinate data with for the left inside displacement transducer that gathers bearing inner surface profile coordinate data, be equipped with side by side on the right straight-line motion mechanism for the right outside displacement transducer that gathers bearing outside surface profile coordinate data with for the right inside displacement transducer that gathers bearing inner surface profile coordinate data, left outside displacement transducer, left inside displacement transducer, right outside displacement transducer and right inside displacement transducer are positioned on the worktable, left outside displacement transducer, left inside displacement transducer, right outside displacement transducer and right inside displacement transducer are processed and computing system by the data line connection data.
2. the device of bearing diameter according to claim 1 and raceway radius measurement, it is characterized in that: described left outside displacement transducer, left inside displacement transducer, right outside displacement transducer and right inside displacement transducer are the two-dimensional line laser displacement sensor.
CN 201220277323 2012-06-13 2012-06-13 Bearing diameter and raceway radius measuring device Expired - Fee Related CN202836517U (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102735179A (en) * 2012-06-13 2012-10-17 苏州致幻工业设计有限公司 Device and method for measuring diameter of bearing and radius of rolling path
CN108885083A (en) * 2016-03-01 2018-11-23 格里森计量***股份有限公司 Measurement to worm gear

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102735179A (en) * 2012-06-13 2012-10-17 苏州致幻工业设计有限公司 Device and method for measuring diameter of bearing and radius of rolling path
CN102735179B (en) * 2012-06-13 2015-03-25 苏州致幻工业设计有限公司 Device and method for measuring diameter of bearing and radius of rolling path
CN108885083A (en) * 2016-03-01 2018-11-23 格里森计量***股份有限公司 Measurement to worm gear
CN108885083B (en) * 2016-03-01 2021-06-29 格里森计量***股份有限公司 Measurement of worm gear

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