CN109059766A - A kind of non-contact detection device of deep groove ball bearing inner ring ditch position - Google Patents
A kind of non-contact detection device of deep groove ball bearing inner ring ditch position Download PDFInfo
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- CN109059766A CN109059766A CN201810950007.8A CN201810950007A CN109059766A CN 109059766 A CN109059766 A CN 109059766A CN 201810950007 A CN201810950007 A CN 201810950007A CN 109059766 A CN109059766 A CN 109059766A
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- sensor
- motor shaft
- displacement sensor
- bearing inner
- lasso
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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
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
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- Length Measuring Devices With Unspecified Measuring Means (AREA)
Abstract
The present invention relates to a kind of non-contact detection devices of deep groove ball bearing inner ring ditch position, belong to field of bearings, described device include can be achieved in plane the laterally or longitudinally workbench, motor, encoder, sensor stand, the displacement sensor that sensor stand free end is set of motion positions and below displacement sensor for placing the set coil support of bearing ring；The motor is equipped with motor shaft, and the encoder of detection motor shaft rotational angle is equipped on the motor shaft；Being connected in the free end of the motor-shaft extending outlet can be according to the sensor stand of bearing inner race diameter adjustment height.Described device can measure comprehensively inner ring profile, have many advantages, such as that lossless, precision is high, versatile, at low cost, easy to detect, have important directive significance to the application of bearing trench position detection method.
Description
Technical field
The invention belongs to field of bearings, and in particular, to a kind of non-contact detecting dress of deep groove ball bearing inner ring ditch position
It sets.
Background technique
Deep groove ball bearing inner ring ditch position is the important geometric parameter of bearing, directly affects bearing clearance, vibrates, makes an uproar
Sound, service life etc..Measurement for deep groove ball bearing inner ring ditch position, at present mainly using contourgraph indirectly/direct method of measurement, sample
Plate light gap method, instrument for measuring bearings etc., but it is there are great number of issues, for example, the contourgraph indirect method of measurement be by standard ball, will
Know that radius roller and the installation of tested inner ring are fixed, the outer diameter profile of roller and the channel profile of inner ring are measured by contourgraph, from
And the coordinate in the roller center of circle Yu raceway curvature circle-center is obtained, this method measures attachment due to existing, and installation accuracy is more demanding,
The systematic error of introducing can not also be eliminated.The contourgraph direct method of measurement is not needed with measurement attachment, and when measurement will be in measured bearing
The certain degree angle of circle inclination, the profile of bear inner ring grooved railway and end face bus is measured by contourgraph, since measuring instrument probe can only scan
Portion end surface and channel can generate biggish evaluated error and influence measurement accuracy.Template light gap method uses standard jig curved surface
Whether circular arc and the gap detection ditch position that channel generates are qualified, and this method can not determine the accurate ditch position of inner ring, different
Channel dimensions need replacing standard jig, and template easily causes the precision of size of sample to the contact of channel.Instrument for measuring bearings method
It is the actual value for measuring inner ring ditch position indirectly on vertical comparator using corresponding curvature ball, this method measurement process
It is relatively complicated, be not suitable for large quantities of measurements.With the emergence of novel bearing, traditional contact bearing inner race ditch position side
Method is not able to satisfy actual measurement needs, the new method convenient and with high accuracy there is an urgent need to a kind of measurement.
Summary of the invention
In view of the above-mentioned problems, the purpose of the present invention is to provide a kind of non-contact detectings of deep groove ball bearing inner ring ditch position
Device.The device can measure comprehensively bearing inner race profile, with lossless, precision is high, versatile, at low cost and detection
Convenient advantage.
To achieve the goals above, the present invention use the specific scheme is that
A kind of non-contact detection device of deep groove ball bearing inner ring ditch position, using horizontal plane as working face, in the work
Make plane and is equipped with the workbench that laterally or longitudinally motion positions can be achieved；Motor, institute are equipped in the upper surface of the workbench
Motor is stated equipped with horizontally extending motor shaft, the motor shaft is equipped with the encoder of detection motor shaft rotational angle；
Being connected in the free end of the motor shaft can be according to the sensor stand of the L-type of bearing inner race diameter adjustment height, described
The free end of sensor stand horizontal component is connected with displacement sensor, on working face and is located at institute's displacement sensors
Lower section is equipped with for placing and the set coil support of fixing bearing, to realize that motor shaft drives displacement sensor to bearing inner race progress
Comprehensive measurement.
It being advanced optimized as to above scheme, the motor driven motor shaft rotation, encoder obtains rotation angle,
Motor shaft drives displacement sensor rotation by sensor stand simultaneously, and institute's displacement sensors detect corresponding bearing inner race and cut
The displacement put on surface curve.
As the further optimization to above scheme, the face that the top of the set coil support is contacted with lasso forms V word
Type structure.
The detection method of the above-mentioned device detection deep groove ball bearing inner ring ditch position of the also further Sustainable use of the present invention,
The following steps are included:
Step 1: adjusting bearing ring position: primarily determining the relative position of bearing inner race channel and displacement sensor, make to be displaced
Sensor is placed in the surface of tested lasso；Then, operating position is adjusted, displacement sensor and the line in the lasso center of circle is made to hang down
Directly in working face, displacement sensor initial position is obtained；
Step 2: adjusting sensor initial position: motor shaft does not rotate, and for sensor stand perpendicular to working face, workbench is horizontal
It is worked at the same time to mobile with displacement sensor, the minimum value position that displacement sensor obtains is highest of the lasso on cross section
Point, displacement sensor, highest point and lasso kernel of section point are on the same line, right by table positions in this position at this time
It should be first basic point in the point on lasso；
Step 3: driving motor rotates motor shaft, encoder obtains rotation angle, and simultaneous displacement sensor is displaced, and leads to
It crosses the rotation angle obtained and is displaced the point cloud coordinate that can be calculated on lasso cross section curve, it is accurate to can get after matched curve
Ditch position data；
Step 4: vertically move workbench without mobile lasso, make displacement sensor be right against lasso cross section curve another
Position, as second basic point repeat above-mentioned measurement method and obtain ditch position data, thus can repeatedly accurately calculate after measurement
Ditch position correction value.
The utility model has the advantages that
1, the non-contact detection device of deep groove ball bearing inner ring ditch position of the present invention, structure are simple and convenient to operate,
Bearing inner race ditch position is measured using the optical touchless detection device, inner ring profile can be measured comprehensively, is had
Have the advantages that lossless, precision is high, versatile, at low cost, easy to detect, there is weight to the application of bearing trench position detection method
The directive significance wanted.
2, the non-contact detection device of deep groove ball bearing inner ring ditch position of the present invention, using non-contact displacement sensing
Device and encoder collective effect pass through the rotation angle for obtaining the point on cross section curve and displacement data etc. to calculate a cloud
Coordinate, and then ditch position data is obtained, either for single raceway or double raceway, using device of the present invention
Accurately and rapidly detect the ditch position of bearing inner race.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of non-contact detection device of the present invention；Wherein: 1, workbench；2, motor；3, it encodes
Device；4, sensor stand；5, displacement sensor；6, coil support is covered；7, bearing ring；
Fig. 2 is the schematic illustration of single raceway ditch position measurement；
Fig. 3 is the schematic illustration of double raceway ditch position measurement；
Fig. 4 is channels cross-section radius of circle detection schematic diagram.
Specific embodiment
Below by specific embodiment and its attached drawing, the technical solution of embodiment of the present invention is carried out further
It illustrates.
A kind of specific embodiment of the non-contact detection device of deep groove ball bearing inner ring ditch position provided by the present invention,
Its apparatus structure as shown in Figure 1, the detection device using horizontal plane as working face, including be arranged on working face can be achieved
In working face laterally or longitudinally the workbench 1 of motion positions, setting on the table the motor 2 on surface, encoder 3, pass
Sensor bracket 4, displacement sensor 5 and set coil support 6；The motor 2 is equipped with horizontally extending motor shaft, described
Motor shaft is equipped with the encoder 3 of detection motor shaft rotational angle；Being connected in the free end of the motor-shaft extending outlet can root
According to the L-type sensor stand 4 of bearing inner race diameter adjustment height, connected in the free end of 4 horizontal component of sensor stand
There is displacement sensor 5, on working face and is located at the set being equipped with below displacement sensor 5 for placing measured bearing lasso 7
Coil support 6；When the electric motor starting, motor shaft drives the displacement sensor 5 on sensor stand 4 to the comprehensive of bearing inner race
Measurement；The top of the set coil support 6 is in V-shape structure, to place bearing ring 7.
Deep groove ball bearing inner ring ditch position is measured using above-mentioned detection device, method is as follows:
Firstly, adjusting 7 position of bearing ring, primarily determines the relative position of bearing inner race channel Yu displacement sensor 5, make
Displacement sensor 5 is placed in the surface of measured bearing lasso 7, then, adjusts 1 position of workbench, makes displacement sensor 5 and bearing
The line in 7 center of circle of lasso obtains 5 initial position of displacement sensor perpendicular to working face.Workbench 1 can produce horizontal and vertical
Movement, the wherein axial direction of bearing ring 7 and 1 vertical consistency of workbench.
5 initial position adjusting method of displacement sensor: the motor shaft of motor 2 does not rotate, and sensor stand 4 is perpendicular to work
Plane, 1 transverse shifting of workbench are worked at the same time with displacement sensor 5, and the minimum value position that displacement sensor 5 obtains is lasso
Highest point namely displacement sensor, highest point, bearing ring kernel of section point on cross section are on the same line.By work
It is positioned at this position as platform, is first basic point corresponding to the point on bearing ring.
Subsequently, driving motor 2 rotates motor shaft, and the encoder 3 being arranged on motor shaft obtains rotation angle, simultaneously
It is swung by sensor stand and the displacement sensor of motor axis connection, displacement sensor obtains corresponding lasso in swing process
The displacement of all the points on cross section curve can calculate the point cloud coordinate on lasso cross section curve, according to formula after matched curve
Calculating can get accurate ditch position data.
Finally, by the longitudinal a distance of workbench 1, displacement sensor 5 is made to be right against lasso without mobile bearing ring 7
Another position of cross section curve, as second basic point repeat above-mentioned measurement method and obtain ditch position data, thus repeatedly survey
After amount, ditch position correction value can be accurately calculated.
When being detected to deep groove ball bearing inner ring ditch position, because deep groove ball bearing inner ring raceway section is circular one
Section circular arc can obtain the center position of groove-section, to calculate bearing groove position by the multiple spot coordinate on fitting circular arc
It sets.
Embodiment 1
The deep groove ball bearing inner ring raceway ditch position with single raceway is measured, as shown in Figure 2.It is passed using non-contact displacement
Sensor measures bearing inner race top left side profile b01 and respectively using R as the raceway profile of radius, angle corresponding to raceway profile
Degree is θ.It inverts inner ring (180 ° of lasso radial rotary), measures inner ring raceway other end profile b02, then the bearing inner race ditch measured
C01 and c02 are respectively as follows: for position
C01=b01+Rsin (θ/2)
C02=b02+Rsin (θ/2)
The inner race width h of measurement, ditch position correction value are as follows:
E1=(c01+c02-h)
It, can be by one angle of lasso axial-rotation to guarantee ditch position detection accuracy, it is assumed that detect n ditch position in a circle, obtain
It is respectively e2, e3 ... en to ditch position correction value, then inner ring ditch position correction value are as follows:
E=(e1+e2+ ... en)/n
When detecting similar inner ring, a certain deep groove ball bearing inner ring ditch position can be directly obtained are as follows:
C=ci-e
Wherein, ci is actual measurement ditch position.
In the process, the detection of ditch position needs to obtain channel radius R, and testing principle is as shown in figure 4, by displacement sensing
Device is placed in right above lasso raceway, i.e., the line of sensor and raceway minimum point is perpendicular to horizontal plane, measurement sensor and detection
The distance between target r0 is then origin (0,0) at sensor, and the initial position on raceway is set as basic point P, coordinate (x0,
It y0 is) known (0 ,-r0), after sensor rotation certain angle α, displacement sensor obtains the distance between sensor and target point
R1, the then coordinate (x1, y1) of target point are as follows:
X1=-r1*sin α
Y1=-r1cos α
Cross sectional coordinate is obtained after carrying out displacement scanning to entire raceway, is fitted with least square method using first position as base
The channel circular arc of point, the circle of acquisition obtain the centre point coordinate i.e. radius R of section circle1, channel sweep is obtained to be accurate,
Change base position Q, duplicate measurements channel curve is simultaneously fitted, and multiple radiuses are public to bring the calculating of ditch position into after being averaged
Formula.
Likewise, it is straight can to calculate the left side still using raceway minimum point as basic point for the measurement for left and right side straight line
Point coordinate (x at lineIt is left, yIt is left) and be fitted be in line.If needing precise measurement, it is only necessary to replace datum mark and repeatedly measure.
xIt is left=-rIt is left*sinδ
yIt is left=-rIt is leftcosδ
Embodiment 2
The deep groove ball bearing inner ring raceway ditch position with double raceway is measured, as shown in Figure 3.For double raceway ditch position
The detection of the detection set, raceway and outline is all similar with single raceway, and first row and second row raceway ditch position are respectively as follows:
C11=b11+R1sin (θ 1/2)
C21=b21+R2sin (θ 2/2)
The ditch position detection correction value of double raceway is identical as raceway ditch position correction value single in embodiment 1.Channel half
Obtaining respectively for diameter R1 and R2 is identical as the acquisition of R value in embodiment 1.
It should be noted that above-described embodiment is only the better embodiment of the present patent application, it is not limited to this hair
Bright protection scope, all within the spirits and principles of the present invention, any modification, equivalent replacement or improvement for being made etc. should all
Within protection scope of the present invention.
Claims (4)
1. a kind of non-contact detection device of deep groove ball bearing inner ring ditch position, it is characterised in that: using horizontal plane as working face,
The workbench that laterally or longitudinally motion positions can be achieved is equipped on the working face；It is equipped in the upper surface of the workbench
Motor, the motor are equipped with horizontally extending motor shaft, and the motor shaft is equipped with detection motor shaft rotational angle
Encoder；The free end of the motor shaft be connected with can according to the sensor stand of the L-type of bearing inner race diameter adjustment height,
It is connected with displacement sensor in the free end of the sensor stand horizontal component, on working face and is located at displacement biography
The lower section of sensor is equipped with for placing and the set coil support of fixing bearing, to realize motor shaft drive displacement sensor in bearing
Circle carries out comprehensive measurement.
2. a kind of non-contact detection device of deep groove ball bearing inner ring ditch position as described in claim 1, it is characterised in that: institute
The rotation of motor driven motor shaft is stated, encoder obtains rotation angle, while motor shaft drives displacement sensing by sensor stand
Device rotation, institute's displacement sensors detect the displacement put on corresponding bearing inner race cross section curve.
3. a kind of non-contact detection device of deep groove ball bearing inner ring ditch position as claimed in claim 1 or 2, feature exist
In: the face that the top of the set coil support is contacted with lasso forms V-shape structure.
4. utilizing the detection method of device as claimed in claim 3 detection deep groove ball bearing inner ring ditch position, it is characterised in that:
The following steps are included:
Step 1: adjusting bearing ring position: primarily determining the relative position of bearing inner race channel and displacement sensor, make to be displaced
Sensor is placed in the surface of tested lasso；Then, operating position is adjusted, displacement sensor and the line in the lasso center of circle is made to hang down
Directly in working face, displacement sensor initial position is obtained；
Step 2: adjusting sensor initial position: motor shaft does not rotate, and for sensor stand perpendicular to working face, workbench is horizontal
It is worked at the same time to mobile with displacement sensor, the minimum value position that displacement sensor obtains is highest of the lasso on cross section
Point, displacement sensor, highest point and lasso kernel of section point are on the same line, right by table positions in this position at this time
It should be first basic point in the point on lasso；
Step 3: driving motor rotates motor shaft, encoder obtains rotation angle, and simultaneous displacement sensor is displaced, and leads to
It crosses the rotation angle obtained and is displaced the point cloud coordinate that can be calculated on lasso cross section curve, it is accurate to can get after matched curve
Ditch position data；
Step 4: vertically move workbench without mobile lasso, make displacement sensor be right against lasso cross section curve another
Position, as second basic point repeat above-mentioned measurement method and obtain ditch position data, thus can repeatedly accurately calculate after measurement
Ditch position correction value.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810950007.8A CN109059766B (en) | 2018-08-20 | 2018-08-20 | Method for detecting inner ring groove position of deep groove ball bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810950007.8A CN109059766B (en) | 2018-08-20 | 2018-08-20 | Method for detecting inner ring groove position of deep groove ball bearing |
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| Publication Number | Publication Date |
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| CN109059766A true CN109059766A (en) | 2018-12-21 |
| CN109059766B CN109059766B (en) | 2020-12-08 |
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| CN201810950007.8A Active CN109059766B (en) | 2018-08-20 | 2018-08-20 | Method for detecting inner ring groove position of deep groove ball bearing |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110530272A (en) * | 2019-10-09 | 2019-12-03 | 河南科技大学 | The non-contact measurement device for measuring and measurement method of angular contact ball bearing inner ring channel location |
| CN110823093A (en) * | 2019-10-24 | 2020-02-21 | 人本集团有限公司 | Detection device for detecting inner ring groove position of deep groove ball bearing |
| CN112857277A (en) * | 2019-11-28 | 2021-05-28 | 北京京冶轴承股份有限公司 | Wind power yaw and pitch bearing raceway processing section measuring device, system and method |
| CN113848061A (en) * | 2021-10-14 | 2021-12-28 | 无锡市利钧轴承有限公司 | Deep groove ball bearing raceway position measuring device and method |
| CN113899332A (en) * | 2021-10-08 | 2022-01-07 | 中国航发哈尔滨轴承有限公司 | Method for measuring diameter of small-size thrust bearing ring channel |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110530272A (en) * | 2019-10-09 | 2019-12-03 | 河南科技大学 | The non-contact measurement device for measuring and measurement method of angular contact ball bearing inner ring channel location |
| CN110823093A (en) * | 2019-10-24 | 2020-02-21 | 人本集团有限公司 | Detection device for detecting inner ring groove position of deep groove ball bearing |
| CN112857277A (en) * | 2019-11-28 | 2021-05-28 | 北京京冶轴承股份有限公司 | Wind power yaw and pitch bearing raceway processing section measuring device, system and method |
| CN113899332A (en) * | 2021-10-08 | 2022-01-07 | 中国航发哈尔滨轴承有限公司 | Method for measuring diameter of small-size thrust bearing ring channel |
| CN113848061A (en) * | 2021-10-14 | 2021-12-28 | 无锡市利钧轴承有限公司 | Deep groove ball bearing raceway position measuring device and method |
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|---|---|
| CN109059766B (en) | 2020-12-08 |
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