CN207180613U - Non-contact type bearing lasso external diameter measuring device - Google Patents

Non-contact type bearing lasso external diameter measuring device Download PDF

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Publication number
CN207180613U
CN207180613U CN201720325782.5U CN201720325782U CN207180613U CN 207180613 U CN207180613 U CN 207180613U CN 201720325782 U CN201720325782 U CN 201720325782U CN 207180613 U CN207180613 U CN 207180613U
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laser displacement
bearing ring
displacement sensors
measurement
sensor
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Inventor
薛玉君
马伟
马喜强
余永健
张正
李济顺
司东宏
李伦
隋新
杨芳
刘春阳
韩红彪
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Henan University of Science and Technology
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Henan University of Science and Technology
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Abstract

It the utility model is related to a kind of non-contact type bearing lasso external diameter measuring device, including sensor mount, driver mounting bracket is provided with two laser displacement sensors being distributed along bearing ring spaced radial, each laser displacement sensor has the gauge head being used for towards bearing ring outer surface respectively, the gauge head of two laser displacement sensors arranges that measurement apparatus also includes being used for the rotating drive mechanism for realizing that bearing ring to be measured and two laser displacement sensors relatively rotate in opposite directions.Measured using contactless laser displacement sensor, can effectively prevent plowing from tested part, ensure the surface integrity of part.The relative rotation between bearing ring and two laser displacement sensors is realized using rotating drive mechanism, the outside dimension and outside dimension variation of the bearing ring at Difference angles can be so measured, so as to effectively improve measurement accuracy.

Description

Non-contact type bearing lasso external diameter measuring device
Technical field
It the utility model is related to a kind of non-contact type bearing lasso external diameter measuring device.
Background technology
Bearing is a kind of high-accuracy machine components, and its size, geometry are the principal elements of bearing accuracy grade, measurement It is the required means for judging size, geometry etc..At present, bearing is used mostly in bearing machining process and its finished product measurement Instrumentation realizes measurement.Bearing instrumentation has the advantages that simple to operate, easy to learn, inexpensive, durable, measurement efficiency is higher, But there is also certain limitation:
(1)Cemented carbide feeler used in bearing instrumentation easily causes in measurement process to bearing parts surface to be drawn Wound, plain bearing is also acceptable, but the small flaw in high-accuracy bearing any point can all influence product quality, and this is absolutely not Allow.
(2)To some thin-wall bearings, the manual measurement on instrumentation, the external force of hand causes very big shadow to measurement result Ring, much can not meet requirement of the bearing accuracy to measurement.
(3)The instrumentation error of indication is larger, can not meet the measurement demand of part precision bearing.
(4)Using other high-precision measuring instruments, there is many deficiencies:1. contact measurement, which is mostly at 2 points, determines diameter Measuring method, a diameter can only be once measured, can not meet Bearing testing standard to parameters such as average diameter, variation in diameter amounts It is required that and the time grow, efficiency is low.2. contact measurement has dynamometry, also have an impact to thin-wall bearing part.3. contact measurement is equal Different degrees of scuffing can be caused to piece surface.4. non-cpntact measurement accuracy of measurement is relatively low, limited by measuring principle, it is individual Other demand can not be completed to measure.
A kind of the non-of large-size bearing roller way is disclosed in the Chinese invention patent that Authorization Notice No. is CN101733680B The method of contact on-line measurement, realized using the laser displacement sensor on Digit Control Machine Tool and the non-of raceway is connect Touch is measured, but single laser displacement sensor is only configured in measurement apparatus used in this measuring method, can not both be realized To the radius measurement of bearing ring inside/outside diameter size, the diameter measurement to bearing ring inside/outside diameter size can not be also realized, still Can not solve the problems, such as the accurate measurement of the lasso inside/outside diameter size of high-accuracy bearing.
Utility model content
The purpose of this utility model is to provide a kind of non-contact type bearing lasso external diameter simple in construction, measurement accuracy is high Measurement apparatus.
To achieve the above object, the technical scheme of the utility model non-contact type bearing lasso external diameter measuring device is:One Kind non-contact type bearing lasso external diameter measuring device, including sensor mount, driver mounting bracket are provided with along bearing ring Two laser displacement sensors of spaced radial distribution, each laser displacement sensor has respectively to be used for towards bearing ring appearance The gauge head in face, the gauge head of two laser displacement sensors arrange in opposite directions, measurement apparatus also include being used for realizing bearing ring to be measured with The rotating drive mechanism that two laser displacement sensors relatively rotate.
Two laser displacement sensors are spaced apart direction and are defined as left and right directions, the two laser displacement sensors edge is left Right direction spacing is adjustable to be assemblied on the sensor mount.
Two laser displacement sensor is arranged on the sensor mount by movable stand respectively, the sensor Mounting bracket is used for the adjustment screw mandrel that two laser displacement sensors of adjustment are opposite, are moved away from provided with what is extended in left-right direction, The screwed hole being sleeved on adjustment screw mandrel is respectively equipped with two movable stands, adjustment screw mandrel has and the screwed hole pair on two movable stands Two thread segments of threaded engagement are answered, two thread segments are oppositely oriented, and the movement of guiding guiding two is additionally provided with the sensor mount The guide that frame moves in left-right direction.
The rotating drive mechanism is used to drive bearing ring to be measured to rotate to realize bearing ring to be measured and two laser positions Displacement sensor relatively rotates, and rotating drive mechanism includes being used for the turntable for carrying bearing ring to be measured, and turntable is turned by motor driving It is dynamic.
Measurement apparatus also includes being used for the displacement coder for controlling turntable interval set angle to rotate, and angular displacement is compiled Code device is connected with the motor control.
Measurement apparatus also includes driving sensor mount and moved axially with two laser displacement sensors along bearing ring Mechanism for axial adjusting, and for detect two laser displacement sensors along bearing ring move axially displacement axial direction detect Device.
Measurement apparatus also includes being used to drive sensor mount with two laser displacement sensors along perpendicular to bearing holder (housing, cover) The radial direction adjustment mechanism of the planar movement of axial direction is enclosed, and is driven for detecting two laser displacement sensors in radial direction adjustment mechanism Under displacement radial detector.
Measurement apparatus includes being used for the data receiver and processing mould being connected with the signal output part of two laser displacement sensors Block.
The beneficial effects of the utility model are:Non-contact type bearing lasso external diameter measuring device provided by the utility model In, the outside dimension of bearing ring is measured using two laser displacement sensors, in the case where ensureing measurement accuracy, use is non- The laser displacement sensor of contact measures, and can effectively prevent plowing from tested part, ensures the surface integrity of part.Utilize Rotating drive mechanism realizes the relative rotation between bearing ring and two laser displacement sensors, can so measure different angle position The outside dimension and outside dimension variation of the bearing ring at place are put, so as to effectively improve measurement accuracy.
Further, spacing is adjustable in left-right direction for two laser displacement sensors, can so pass through adjustment amount laser displacement The spacing of sensor adapts to various sizes of bearing ring.
Further, it is easy to adjust reliable from the spacing of adjustment screw mandrel adjustment amount laser displacement sensor.
Further, measurement apparatus also includes displacement coder, as needed turntable can be controlled to be pressed with bearing ring Rotated according to interval set angle, improve rotation measuring efficiency.
Further, measurement apparatus includes mechanism for axial adjusting, what the so measurable axially different position of bearing ring went out The corresponding radial dimension in section.
Brief description of the drawings
Fig. 1 is a kind of structure of embodiment of non-contact type bearing lasso external diameter measuring device provided by the utility model Schematic diagram;
Fig. 2 is the structural representation of sensor mount in Fig. 1;
Fig. 3 is schematic diagram when measurement apparatus shown in application drawing 1 measures bearing ring external diameter.
Embodiment
Embodiment of the present utility model is described further below in conjunction with the accompanying drawings.
The specific embodiment of non-contact type bearing lasso external diameter measuring device provided by the utility model, such as Fig. 1 to Fig. 3 Shown, the measurement apparatus in the embodiment includes base 20, and being provided with sensor by slide unit adjustment mechanism on base 20 installs Frame 8, sensor mount 8 is provided with two laser displacement sensors being distributed along bearing ring spaced radial, in the present embodiment, tool Two laser displacement sensors are spaced apart direction and are defined as left and right directions by body, and two laser displacement sensors include first sensor 5 and second sensor 7, each laser displacement sensor has the gauge head being used for towards bearing ring outer surface, two laser respectively The gauge head of displacement transducer is arranged in opposite directions.
In the present embodiment, each laser displacement sensor is moveably mounted to pass in left-right direction by movable stand respectively On sensor mounting bracket, two movable stands are that the first movable stand 26 of corresponding first sensor 5 and the second of corresponding second sensor 7 move Moving frame 24, it is used to adjust two laser displacement sensors in opposite directions, opposite to each other provided with what is extended in left-right direction on sensor mount 8 Mobile adjustment screw mandrel 23, is respectively equipped with the screwed hole being sleeved on adjustment screw mandrel on two movable stands, adjustment screw mandrel 23 have with Screwed hole on two movable stands corresponds to two thread segments of threaded engagement, and two thread segments are oppositely oriented.Also, in sensor mount It is additionally provided with 8 and is oriented to the guide 25 that two movable stands of guiding move in left-right direction, the guide 25 is specially and two movable stands It is oriented to the guide rod coordinated.
For convenience of operation, one end of adjustment screw mandrel 23 is set to axially extend sensor mount, in stretching for adjustment screw mandrel Go out end be provided with handle 27, be convenient for measuring personnel rotate adjustment screw mandrel 23 so that control two laser displacement sensors towards or away from Ground movement adjustment.
Measurement apparatus also includes being used to realize that the rotation that bearing ring to be measured and two laser displacement sensors relatively rotate is driven Motivation structure, in the present embodiment, for convenience of bearing ring outside dimension is measured, rotating drive mechanism specifically includes to be measured for carrying The turntable 4 of bearing ring 5, turntable 4 drive rotation by motor 21 by first shaft coupling 3, also, are correspondingly configured with and motor 21 The displacement coder 22 of connection is controlled, the displacement coder drives to be measured as rotational angle controller controlled motor 21 Bearing ring interval set angle rotates, that is, stops after rotating set angle to measure, be rotated further by set angle stop with Measure.
In the present embodiment, slide unit adjustment mechanism includes the vertically vertical direction extension of the guide direction that is provided with of base 20 Vertical guide rail 9, the axial parallel of vertical direction up and down and the bearing ring to be measured 6 being placed on turntable 4 in the present embodiment, Vertical guide rail 9 is provided with mechanism for axial adjusting, and the mechanism for axial adjusting is used to drive sensor mount 8 with two laser displacements Sensor moves axially along bearing ring, and mechanism for axial adjusting specifically includes down-feed screw 12, and down-feed screw 12 is by motor vertical 11 drive rotation by second shaft coupling 10, are correspondingly equipped with down-feed screw 12 for driving sensor mount to swash with two The radial direction adjustment mechanism that Optical displacement sensor moves in the plane perpendicular to bearing ring axial direction, radial direction adjustment mechanism include edge Upper and lower vertical direction guiding movement is assemblied in the horizontal guide rail 18 on vertical guide rail 9, and horizontal guide rail 18 is driven by down-feed screw 12, Down-feed screw 12 rotates and then drives horizontal guide rail to move up adjustment in upper and lower Vertical Square.The guiding movement on horizontal guide rail 12 Horizontal sliding table 17 is equipped with, sensor mount 8 is fixedly mounted on horizontal sliding table 17, and horizontal sliding table 17 is driven by horizontal screw lead 14 Dynamic to move adjustment along horizontal guide rail 18, horizontal screw lead 14 drives rotation by horizontal motor 16 by the 3rd shaft coupling 15.
Above-mentioned radial direction adjustment mechanism is mainly used in making two laser displacement sensors horizontal in bearing ring in the present embodiment It is moved to above bearing ring to be measured, to facilitate two laser displacement sensors to stretch into bearing ring.Then, utilization can utilize axle Adjustment is moved up in upper and lower Vertical Square with two laser displacement sensors to adjustment mechanism driving sensor mount, two are swashed Optical displacement sensor is sent on the outside of bearing ring, the outside dimension of the bearing ring of also measurable different cross section opening position.
In fact, corresponding mechanism for axial adjusting, is configured with for detecting two laser displacement sensors along bearing ring axial direction The axial detector of moving displacement, axial detector herein is specially to be arranged at being led for detection level for vertical guide rail side Rail moves axially the vertical raster chi 13 of displacement along bearing ring, because two laser displacement sensors and sensor mount follow Vertically vertical direction moves for horizontal sliding table 17, horizontal guide rail 18, can be realized by the upper lower vertical displacement of detection level guide rail Detection to lower vertical displacement on two laser displacement sensors.
Moreover, corresponding radial direction adjustment mechanism, is configured with and is driven for detecting two laser displacement sensors in radial direction adjustment mechanism The radial detector of displacement under dynamic, the radial detector are specially to be arranged at the horizontal grating scale 19 of horizontal guide rail side, should Horizontal grating scale 19 can realize the corresponding displacement to two laser displacement sensors by the horizontal displacement of detection level slide unit 17.
In addition, in the present embodiment, measurement apparatus also includes being used to be connected with the signal output part of two laser displacement sensors Data receiver and processing module, data receiver and processing module specifically include computer 1 and TT&C system 2.
During the outside dimension of the measurement apparatus measurement bearing ring provided using the present embodiment, using external diameter nominal dimension as Exemplified by 30mm bearing ring, the measurement implementation steps of measurement apparatus are illustrated:
(1)The standard component that length is 30mm is placed on turntable 4, drives the rotation of down-feed screw 12 to make by motor vertical 11 Horizontal guide rail 18 vertically moves;The rotation of horizontal screw lead 14 is driven to move horizontally horizontal sliding table 17 by horizontal motor 16, with band Dynamic sensor mount 8 is moved integrally to standard component side.Then, rotational handle 27 makes the rotation of adjustment screw mandrel 23 adjust two shiftings Horizontal range between moving frame, while the horizontal survey distance demarcated with the standard component of 30mm length between two laser displacement sensors To 30mm.Then, two movable stands are fixed to keep the horizontal survey distance between two laser displacement sensors constant in 30mm, and Remove standard component.
(2)Tested bearing ring 6 is placed on turntable 4, the upper-lower position of sensor mount 8 is adjusted, makes two laser Displacement transducer is stretched into measured bearing lasso, as shown in figure 3, the A and B in Fig. 3 represent laser beam respectively, then with comparing Mensuration measurement obtains bearing ring external diameter.
The introduction of comparative measurement method is so that external diameter nominal dimension is 30mm bearing ring as an example:First in step(1)Middle length The distance that the standard component spent for 30mm demarcates two laser displacement sensors is 30mm, then locks two laser displacement sensors Position it is motionless;Again respectively with the distance of two each measurement sensors of laser displacement sensor to bearing ring outer surface, than If a value is 0.012 mm, a value is 0.007 mm, then the external diameter of bearing ring for 30-0.012-0.007= 29.981mm。
(3)The anglec of rotation of turntable 4 is adjusted by displacement coder 22 and motor 21, makes 6 turns of tested bearing ring Dynamic set angle, two laser displacement sensors are according to above-mentioned steps(2)In comparative measurement method measure rotate respective angles after The outside dimension of bearing ring.Continue to adjust the anglec of rotation of turntable 4, measurement obtains the outer of bearing ring at Difference angles The variation of footpath size and outside dimension.
(4)Drive down-feed screw 12 to vertically move sensor mount 8 by motor vertical 11, installed by sensor The vertical movement of frame 8 drives two laser displacement sensors to be scanned measured bearing ferrule outer surface, realizes to bearing holder (housing, cover) The measurement of the outside dimension enclosed at inner surface varying cross-section.
(5)Will(3)With(4)Measurement data computer 1 is transferred to by TT&C system 2, through computer 1 resolve compare axle Outside dimension and outside dimension variation at bearing ring inner surface different angle, varying cross-section, obtain bearing ring external diameter Maximum gauge and oval size.So as to complete the measurement of the parameters such as outside dimension, dimensional variations amount, ellipse.
In the measurement apparatus that the present embodiment is provided, the outer diameter ruler of bearing ring is measured using two laser displacement sensors It is very little, measured using contactless laser displacement sensor, can effectively prevent plowing from tested part, ensure that the surface of part is complete Whole property.Also, set angle is rotated using turntable driving bearing lasso interval, can so measure the axle at Difference angles The outside dimension and outside dimension variation of bearing ring, in addition, can not only drive two laser displacements to pass using mechanism for axial adjusting On the outside of sensor to bearing ring, the upper-lower position of also adjustable two laser displacement sensors, so as to realize at different cross section The measurement of outside dimension.
In measurement process, two laser displacement sensors pass through the center of the bearing ring as standard component and by be measured The center of bearing ring.
In the present embodiment, rotating against for measured bearing lasso and two laser displacement sensors is realized using turntable, can be kept away Exempt from the caused deformation of hand-turning operation, measurement accuracy can be effectively improved, the measurement for the thin-wall bearing ferrule that is particularly suitable for use in. In other embodiments, it can also make tested bearing ring motionless, by sensor mount entirety on single-revolution platform, Drive two laser displacement sensors to be relatively rotated with bearing ring to be measured using the rotation of panoramic table, specifically rotate driving machine Structure can be according to actual conditions design arrangement.
In the present embodiment, the angle of rotation by the use of displacement coder as rotational angle controller control measured bearing lasso Degree.In other embodiments, if being rotated using manual actuation turntable, angle scale can also be used to control turntable to rotate Set angle.
In the present embodiment, mechanism for axial adjusting specifically uses down-feed screw, convenient to utilize motor driving adjustment.In other realities Apply in example, piston cylinder can also be used or electric pushrod is driven by servomotor to realize that sensor mount and two laser displacements pass Mobile adjustment of the sensor in upper and lower vertical direction.Accordingly, for radial direction adjustment mechanism, also can use piston cylinder or by Servomotor drives electric pushrod to realize the mobile adjustment of sensor mount and two laser displacement sensors in the horizontal plane.
In the present embodiment, drive drive link mounting bracket dynamic up and down with two laser displacement sensors using mechanism for axial adjusting Make, so as to realize the relative movement of bearing ring and two laser displacement sensors on bearing ring axial direction.In other embodiment In, corresponding mechanism for axial adjusting driving bearing lasso can also be used and moved up in bearing ring axle, and then realize bearing holder (housing, cover) Circle and relative movement of two laser displacement sensors on bearing ring axial direction.
In the present embodiment, when bearing ring is placed on turntable, bearing ring extends axially along upper and lower vertical direction, Corresponding, for convenience of measuring, sensor mount is located at the horizontal side of bearing ring.In other embodiments, if bearing Lasso axially along if horizontally disposed, now, sensor mount can be made to be arranged in the vertical side of bearing ring.
In the present embodiment, using adjust screw mandrel by two movable stands drive two laser displacement sensors towards or away from it is same Moved further.In other embodiments, it can also be configured corresponding piston cylinder or drive electric pushrod to control two to swash by servomotor Optical displacement sensor towards or away from movement.
In the present embodiment, realize two sensorses mounting bracket and two laser displacement sensors in bearing using mechanism for axial adjusting Mobile adjustment on lasso axial direction, the measuring outside diameter of different cross section so can be achieved.In other embodiments, when need not When being measured to the section of different depth, mechanism for axial adjusting can be also not provided with, and utilizes and manually puts sensor mount Enter on the outside of bearing ring.

Claims (7)

  1. A kind of 1. non-contact type bearing lasso external diameter measuring device, it is characterised in that:Including sensor mount, driver installation Frame is provided with two laser displacement sensors being distributed along bearing ring spaced radial, by the two laser displacement sensor sides of being spaced apart To being defined as left and right directions, spacing is adjustable in left-right direction is assemblied in the sensor installation for two laser displacement sensor On frame, both sides that two laser displacement sensors extend and are at outside bearing ring to be measured along the longitudinal direction, two laser positions Displacement sensor has the gauge head being used for towards bearing ring outer surface respectively, and the gauge head of two laser displacement sensors is arranged in opposite directions, Measurement apparatus also includes being used for the rotating drive mechanism for realizing that bearing ring to be measured and two laser displacement sensors relatively rotate.
  2. 2. non-contact type bearing lasso external diameter measuring device according to claim 1, it is characterised in that:The two laser position Displacement sensor is arranged on the sensor mount by movable stand respectively, and the sensor mount is provided with along right and left It is used to adjust the adjustment screw mandrel that two laser displacement sensors are opposite, are moved away to extension, set is respectively equipped with two movable stands Screwed hole on adjustment screw mandrel, adjustment screw mandrel have two screw threads of threaded engagement corresponding with the screwed hole on two movable stands Section, two thread segments are oppositely oriented, are additionally provided with the sensor mount and are oriented to what two movable stands of guiding moved in left-right direction Guide.
  3. 3. non-contact type bearing lasso external diameter measuring device according to claim 1 or 2, it is characterised in that:The rotation Drive mechanism is used to drive bearing ring to be measured to rotate to realize that bearing ring to be measured and two laser displacement sensors relatively rotate, Rotating drive mechanism includes being used for the turntable for carrying bearing ring to be measured, and turntable is by motor-driven rotation.
  4. 4. non-contact type bearing lasso external diameter measuring device according to claim 3, it is characterised in that:Measurement apparatus is also wrapped The displacement coder for controlling turntable interval set angle to rotate is included, displacement coder connects with the motor control Connect.
  5. 5. non-contact type bearing lasso external diameter measuring device according to claim 1 or 2, it is characterised in that:Measurement apparatus Also include the mechanism for axial adjusting that driving sensor mount moves axially with two laser displacement sensors along bearing ring, with And for detecting axial detector of two laser displacement sensors along bearing ring axial movement displacement.
  6. 6. non-contact type bearing lasso external diameter measuring device according to claim 5, it is characterised in that:Measurement apparatus is also wrapped Include the footpath for driving sensor mount with two laser displacement sensors along the planar movement perpendicular to bearing ring axial direction To adjustment mechanism, and for detecting the radial direction detection of displacement of two laser displacement sensors under the driving of radial direction adjustment mechanism Device.
  7. 7. non-contact type bearing lasso external diameter measuring device according to claim 1 or 2, it is characterised in that:Measurement apparatus Including the data receiver and processing module for being connected with the signal output part of two laser displacement sensors.
CN201720325782.5U 2017-03-30 2017-03-30 Non-contact type bearing lasso external diameter measuring device Active CN207180613U (en)

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Application Number Priority Date Filing Date Title
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106705869A (en) * 2017-03-30 2017-05-24 河南科技大学 Noncontact bearing ring outside diameter measurement device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106705869A (en) * 2017-03-30 2017-05-24 河南科技大学 Noncontact bearing ring outside diameter measurement device

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