CN205748298U - A kind of gear measurement device based on laser displacement sensor - Google Patents
A kind of gear measurement device based on laser displacement sensor Download PDFInfo
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- CN205748298U CN205748298U CN201620445803.2U CN201620445803U CN205748298U CN 205748298 U CN205748298 U CN 205748298U CN 201620445803 U CN201620445803 U CN 201620445803U CN 205748298 U CN205748298 U CN 205748298U
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Abstract
This utility model relates to gear measurement technical field, particularly to a kind of gear measurement device based on laser displacement sensor, including workbench, described workbench is provided with work piece revolving platform and the three coordinate translation devices with rotatable measurement head, mark zero-turn axle vertically it is provided with on described work piece revolving platform, described three coordinate translation devices include fixing X-axis guide rail on the table, described X-axis slide on rails is provided with Y-axis guide rail, described Y-axis slide on rails is provided with Z axis guide rail, described Z axis slide on rails is provided with balladeur train, described balladeur train is provided with rotatable laser displacement sensor.Gear measurement device of the present utility model, using laser displacement sensor to carry out each collection measuring point coordinates position in tested flank profil, the contact comparing contact workpiece calibration is measured, and has certainty of measurement high, measurement is the planning without carrying out gauge head motion path, the advantage simplifying measurement process.
Description
Technical field
This utility model relates to the gear testing technical field of gear, particularly to a kind of based on laser displacement sensor
Gear measurement device.
Background technology
Gear measurement technology can be divided into contact type measurement and the big class of non-contact measurement two, and now widely used is logical
Cross trigger-type or scan-type sensing probe contacts with geometrical body surface and records connecing of the three-dimensional coordinate position of body surface point
Touch measuring method, the measuring speed of this method is slow, operation is the most comparatively laborious.During prototype gear, gauge head contacts with tested surface,
When gear rotates, gauge head is along flank profil orbiting motion.The lateral resolution problem that this kind of method has contact gauge head radius to bring more greatly,
And need to plan gauge head motion path in advance.Widely used contact type measurement can be effectively to spur gear, helical gear etc.
Measure, but involute arc cylindrical gear cannot be measured.Contact type measurement tackle general gear time, the flank of tooth of contact
Being plane, normal vector direction is fixing, is therefore easier to calculate measuring point by head center position, radius with normal vector
Physical location.When contact measuring head measures arc cylindrical gear, contact Tooth is curved surface, and the normal vector of contact point is constantly to become
Changing, because the existence of gauge head volume makes theoretical contact, point there are differences with actual contact point, will mend probe location
Repay certain difficulty and expend a large amount of calculating.Owing to above deficiency makes existing gear measurement device be difficult to measure circular cone tooth
The part that the tooth surface shapes such as wheel and arc cylindrical gear are complicated.
Laser displacement sensor generally uses laser triangulation displacement data, and laser triangulation is adopted during measuring
With LASER Light Source as the light source measured, the axis of laser instrument, the optical axis of image-forming objective lens and CCD linear array, three is positioned at same
In individual plane, by a preferable dot projection on measured surface.This hot spot is by deep, the height coordinate with its position, incident point
Change and along the displacement axially making same distance of laser instrument.Hot spot is imaged in CCD linear array further through object lens simultaneously, and becomes
Image position and the degree of depth of hot spot, there is unique corresponding relation position, such as figure.Measure the center of become real image in CCD linear array,
The height coordinate of hot spot can be obtained by hot spot and its geometry of position optical relation of imaging point in CCD linear array, thus
Obtain the depth parameter at this point of measured surface.
Utility model content
The problem that this utility model exists for existing gear measurement technology, it is provided that a kind of based on laser displacement sensor
Gear measurement device, with avoid contact with formula measure in contact shape impact and cause measure inconvenience and certainty of measurement the highest
Problem.
A kind of based on laser displacement sensor the gear measurement device that first this utility model provides, including workbench,
Described workbench is provided with work piece revolving platform and the three coordinate translation devices with rotatable measurement head, on described work piece revolving platform
Vertically being provided with mark zero-turn axle, described three coordinate translation devices include fixing X-axis guide rail on the table, on described X-axis guide rail
Slip is provided with Y-axis guide rail, and described Y-axis slide on rails is provided with Z axis guide rail, and described Z axis slide on rails is provided with balladeur train, described cunning
Frame is provided with rotatable laser displacement sensor.
Gear measurement device of the present utility model, uses laser displacement sensor to carry out respectively measuring in tested flank profil point coordinates
The collection of position, compares the contact measurement that contact work is measured, has certainty of measurement high, and measurement is without carrying out gauge head motion path
Planning, simplify measurement process advantage.
As the further improvement of this utility model measurement apparatus, described balladeur train is provided with index dial, described laser displacement
Sensor is arranged on index dial with index dial synchronous axial system.Measurement apparatus of the present utility model, pacifies laser displacement sensor
It is contained in index dial, adds the degree of freedom of the regulation angle of laser displacement sensor, different pitch cone angle bevel gear can be facilitated
Measure.
For ease of realizing measuring the mobile regulation of head position, described three coordinate translation devices are by driven by servomotor and lead to
Cross controller to control laser displacement sensor and move along the X-axis guide rail of workbench or Y-axis guide rail or Z axis guide rail, described revolution work
Device for revolving and driving it is provided with bottom station.
This utility model also provides for a kind of gear using above-mentioned gear measurement device based on laser displacement sensor and surveys
Metering method, including following process:
(1) moved along X-axis, Y-axis guide rail by driven by servomotor laser displacement sensor, and gather mark zero-turn axle cylindrical
The data point in week, to demarcate the position of tested gear centre axis coordinate system；
(2) by tested gear horizontal on work piece revolving platform, and the central shaft of tested gear and the center of mark zero-turn axle are made
Overlap, the angle of regulation index dial, make laser beam direct projection that laser displacement sensor launches to tested flank profil, and along laser beam
Projecting direction drive laser displacement sensor position so that tested flank profil is in the range of laser displacement sensor；
(3) rotate back to rotating shaft platform, in the flank profil of the laser beam tested gear of direct projection successively that laser displacement sensor is launched, adopt
Collect the displacement data of laser beam incident point relative measurement gear coordinate system central shaft in tested flank profil and be converted into polar coordinate；
(4) polar coordinate point described point matching in polar coordinate system of the flank profil obtained upper step side, to judge the error of tested flank profil.
By method of the present utility model, it is possible to achieve include straight spur gear, bevel gear and the measurement of cambered surface gear,
The motion path of planning survey head in advance is need not, simple method for measuring and improve gear measurement precision during measurement.
For realizing measuring method of the present utility model further, tested gear centre axis coordinate system mark in described step (1)
The method of determining is: laser displacement sensor moving to work piece revolving platform periphery lateral, rotation-indexing table makes laser displacement sensor
The laser level direct projection launched, on mark zero-turn axle periphery, then keeps Y, and Z-direction guide rail is motionless, simultaneously along X direction guiding rail to circle
Side face opposite side starts to be spaced equidistant movement, and gathers data point P1, P2, P3 ... Pn, Pn+1 ..., when collected point moves closer to
During the center of mark zero-turn axle, the laser beam incidence point in mark zero-turn axle periphery is along Y-direction shift value dnIt is gradually reduced and becomes larger again,
When shift value starts increase i.e. d for the first timen> dn-1 time, then the spacing reducing collection point reversely moves and compares, and moves repeatedly ratio
Relatively, during until the shift value size of adjacent collection point is without sudden change, the center of two consecutive points is tested gear coordinate system central shaft
The Y coordinate Y at place0, i.e. X0=0, now the transmitting direction of laser beam is just by the central axis of mark zero-turn axle.
Preferred as this utility model method, described step (2), tested gear is placed on work piece revolving platform, by watching
Take motor regulation Z-direction height, make the laser beam projects direction that laser displacement sensor is launched just by measured flank profil center,
Keep X-coordinate constant simultaneously during measuring, drive servomotor regulation laser displacement sensor along Y-direction guide rail by controller
Move to, near gear surface, make tested flank profil root circle be at laser displacement sensor standard range D, now, laser position
The displacement indicating value of displacement sensor is zero.As the standard range D that measured point distance is just laser displacement sensor, then swash
Optical displacement sensor shift value indicating value is zero, and when distance is less than D, indicating value is just；When distance is more than D, indicating value is negative.
As this utility model method the most preferably, in described step (3), particularly as follows: device for revolving and driving drives
Work piece revolving platform drives tested pinion rotation, and laser displacement sensor is by laser beam projects to tested flank profil simultaneously, takes turns
The collection of the coordinate data of measured point on exterior feature, and with measured gear coordinate system central shaft as limit, with measured point away from mark zero-turn
The distance of axle central point is footpath, pole, the polar coordinate being polar angle record measured point with the angle of work piece revolving platform rotation, adjacent tested
The polar angle interval of point is identical, gathers successively and respectively measures a little on measured wheel whole flank profil week, until work piece revolving platform revolution 360,
The polar value of each point that recording laser displacement transducer side obtains simultaneously.
For ease of realizing spur gear and the measurement of cambered surface gear, described step (2) is measured gears as (circle during roller gear
Stud wheel includes straight spur gear and arc cylindrical gear), the coordinate of tested gear coordinate system central shaft is: (X0, Y0, Z),
Y0=Y '+D+Rf, wherein, Y ' is that the Y-coordinate value of laser displacement sensor central point is read by the position coordinates of Y guide rail, D
For the standard range of laser displacement sensor, RfDistance for root circle to central gear axis；In step (3), work piece revolving platform
Drive tested gear when measured gear coordinate system central axis, when the anglec of rotation is θ 1, laser beam throwing in flank profil
Exit point indicating value is D1, the coordinate in flank profil incident point is (X0, Y1), wherein Y1= Y’+D-D1, then laser beam incident point on exterior feature
Footpath, pole is flank profil the most measured gear coordinate system polar coordinate at θ 1: (θ 1, ρ1), wherein, ρ1= Y0- Y1；Workpiece
Rotary table continues to turn round next θ 1 angle, and it is (2 θ that side obtains tested flank profil the most measured gear coordinate system polar coordinate at θ 2
1, ρ2), until work piece revolving platform revolution 360, complete the measurement of one week tooth at the same facewidth.
For ease of realizing the measurement of bevel gear, when described step (2) is measured gears as conical gear, gear is faced greatly
After lower horizontal is on work piece revolving platform, and adjust to coaxial with mark zero-turn axle, laser displacement sensor is moved Z along Z axis0To quilt
Surveying above gear inclined, index dial rotation alpha angle, α is the pitch cone angle of measured circle bevel gear, makes laser beam just along the regulation of Y-direction guide rail
Good direct projection is in the equivalent flank profil of tested gear, and to make the displacement indicating value of laser displacement sensor be zero, the most tested equivalent tooth
The coordinate of wide central point O ' is (X0, Y0), the Y of laser displacement sensor central point is designated as Y ", in step (3), workpiece turns round
Platform drives tested pinion rotation, and the anglec of rotation is θ1Time, laser beam displacement in incident point in flank profil is converted into equivalent flank profil institute
Polar coordinate system in, laser beam indicating value in incident point in flank profil is D1', then θ1Measure point in place's flank profil to sit in equivalent flank profil
Polar coordinate in mark system are (θ1,ρ1'), ρ1'=| Y0-Y " |/cos α (D D1')；Work piece revolving platform continues to turn round next θ 1
Angle, continues to measure tested flank profil polar coordinate in measured flank profil coordinate system at 2 θ 1 angles, until work piece revolving platform rotates
360 flank profils completed on whole equivalent flank profil week are measured.
Accompanying drawing explanation
Fig. 1 is gear measurement apparatus structure schematic diagram based on laser displacement sensor of the present utility model.
Fig. 2 is spur gear of the present utility model or the schematic diagram of cambered surface gear measuring method.
Fig. 3 is the schematic diagram of bevel gear measuring method of the present utility model.
Detailed description of the invention
Embodiment 1
If Fig. 1 is gear measurement device based on laser displacement sensor of the present utility model, including workbench 8, work
Platform 8 is provided with work piece revolving platform 1 and the three coordinate translation devices with rotatable measurement head, and work piece revolving platform 1 is vertically provided with
Mark zero-turn axle 2, three coordinate translation devices include the X-axis guide rail 7 being fixed on workbench 8, and X-axis guide rail 7 slides to be provided with Y-axis and lead
Rail 6, Y-axis guide rail 6 slides and is provided with Z axis guide rail 5, and Z axis guide rail 5 slides is provided with balladeur train, and balladeur train is provided with rotatable laser
Displacement transducer 4；For ease of regulating the angle of laser projections, balladeur train is provided with index dial 3, and laser displacement sensor 3 is arranged on
With index dial synchronous axial system on index dial；For ease of the position along XYZ direction guiding rail regulation laser displacement sensor, to adapt to difference
The gear measurement of specification classification, three coordinate translation devices control laser displacement sensing by driven by servomotor and by controller
Device moves along the X-axis guide rail of workbench or Y-axis guide rail or Z axis guide rail, is provided with device for revolving and driving to drive bottom rotary table
Dynamic rotary work piece platform rotates with the angular velocity set.
Gear measurement device of the present utility model, uses laser displacement sensor 4 to carry out each point of measuring in tested flank profil and sits
The collection of cursor position, compares the contact measurement that contact work is measured, has certainty of measurement high, and measurement is without carrying out gauge head motion road
The planning in footpath, the advantage simplifying measurement process.
Embodiment 2
As in figure 2 it is shown, use gear measurement device of the present utility model to carry out spur gear or the measuring method of cambered surface gear
It is achieved by the steps of.
The first step, is moved along X-axis, Y-axis guide rail by driven by servomotor laser displacement sensor, and gathers mark zero-turn axle
The data point of excircle, to demarcate the position of tested gear centre axis coordinate system.It is specially and laser displacement sensor 4 is moved to
Work piece revolving platform 1 periphery is lateral, and zero-turn axle 2 is being marked in the laser level direct projection that rotation-indexing table 3 makes laser displacement sensor 4 launch
On periphery, then keeping Y, Z-direction guide rail is motionless, is started along X direction guiding rail 7 to periphery opposite side by laser displacement sensor 4
Interval is equidistant mobile, and acquisition interval data point P1, P2, P3 ... Pn, Pn+1 ..., when collected point moves closer to mark zero-turn axle 2
Center time, the laser beam incidence point in mark zero-turn axle 2 periphery is along Y-direction shift value dnIt is gradually reduced and becomes larger again, work as displacement
Value starts increase i.e. d for the first timen> dn-1 time, then the spacing reducing collection point reversely moves and compares, and moves repeatedly and compares, directly
To adjacent collection point shift value size without sudden change time, the center of two consecutive points is tested gear coordinate system central shaft place
Coordinate is (X0,Y0), now the transmitting direction of laser beam is just by the central axis of mark zero-turn axle.
Second step, by tested gear horizontal on work piece revolving platform, and makes central shaft and the mark zero-turn axle of tested gear
Center superposition, the angle of regulation index dial and the height of Z-direction, just make the laser beam projects direction that laser displacement sensor 4 is launched
Good by measured flank profil center, keep X-coordinate constant simultaneously during measuring, drive servomotor regulation to swash by controller
Optical displacement sensor 4 moves to, near gear surface, make to be in laser displacement sensor 4 by side flank profil root circle along Y-direction guide rail
At useful range D, now, the displacement indicating value of laser displacement sensor 4 is zero.Make mark Y0=Y '+D+Rf, Y ' is laser position
The Y-coordinate value of displacement sensor central point is read by the position coordinates of Y guide rail, and D is the standard range of laser displacement sensor,
RfDistance for root circle to central gear axis.
3rd step, starts gear measurement, and work piece revolving platform 1 drives tested gear to turn around measured gear coordinate system central shaft
Dynamic, the anglec of rotation is θ1Time, laser beam displacement indicating value in incident point in flank profil is D1, the coordinate in flank profil incident point is (X0,
Y1), wherein Y1= Y’+D-D1, then laser beam projection point pole footpath in flank profil is flank profil the most measured gear coordinate system and exists
Polar coordinate at θ 1 are: (θ 1, ρ1), wherein, ρ1= Y0- Y1；When work piece revolving platform continues to turn round next θ 1 angle, and side obtains tested
Flank profil the most measured gear coordinate system polar coordinate at θ 2 are (2 θ 1, ρ2), until work piece revolving platform revolution 360, complete
The measurement of one week flank profil at the same facewidth.
4th step, each point that upper pacing is obtained with polar value in polar coordinate system, carry out described point matching, analyze and judge
The error of tested exterior feature.Complete the measurement of the present embodiment middle gear.
Embodiment 3
As it is shown on figure 3, use gear measurement device of the present utility model to carry out the measuring method of bevel gear by following step
Suddenly realize embodiment 2 difference and be embodied in following a few step.
Second step, after the horizontal that faced down greatly by tested bevel gear is on work piece revolving platform, and adjusts to same with mark zero-turn axle
Axle, moves Z by laser displacement sensor along Z axis0Above tested gear inclined, index dial rotation alpha angle, α is tested circular cone tooth
The pitch cone angle of wheel, makes laser beam just direct projection in the equivalent flank profil of tested gear along the regulation of Y-direction guide rail, and makes laser displacement pass
The displacement indicating value of sensor is zero, and the coordinate of the central point O ' of the most tested equivalent flank profil is (X0, Y0), in laser displacement sensor
The Y of heart point is designated as Y ".In 3rd step, work piece revolving platform 1 drives tested pinion rotation, and the anglec of rotation is θ1Time, laser beam exists
In flank profil, the displacement in incident point is converted into the coordinate of the polar coordinate system at equivalent flank profil place, and laser beam is the position in incident point in flank profil
Move as D1', then θ1Measuring some polar coordinate in equivalent flank profil coordinate system in place's flank profil is (θ1,ρ1'), ρ1'=| Y0-Y " |/
Cos α (D D1')；Work piece revolving platform continues to turn round next θ 1 angle, and at continuation measurement 2 θ 1 angles, tested flank profil is measured
Polar coordinate in flank profil coordinate system, until work piece revolving platform rotates 360 flank profils completing on whole equivalent flank profil week and measures.Logical
Cross the said method of the present embodiment, by the regulation Z-direction height of laser displacement sensor, it is possible to achieve work as at different conical surface thickness
The measurement of amount flank profil.
Claims (3)
1. a gear measurement device based on laser displacement sensor, including workbench, described workbench is provided with workpiece and returns
Turntable and the three coordinate translation devices with rotatable measurement head, described work piece revolving platform is vertically provided with mark zero-turn axle, described
Three coordinate translation devices include fixing X-axis guide rail on the table, and described X-axis slide on rails is provided with Y-axis guide rail, described Y
Sliding on axis rail and be provided with Z axis guide rail, described Z axis slide on rails is provided with balladeur train, and described balladeur train is provided with rotatable laser
Displacement transducer.
Gear measurement device based on laser displacement sensor the most according to claim 1, it is characterised in that described balladeur train
Being provided with index dial, described laser displacement sensor is arranged on index dial with index dial synchronous axial system.
Gear measurement device based on laser displacement sensor the most according to claim 1, it is characterised in that described three sit
Mark translating device by driven by servomotor and by controller control laser displacement sensor along the X-axis guide rail of workbench or Y
Axis rail or Z axis guide rail move, and are provided with device for revolving and driving bottom described rotary table.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201620445803.2U CN205748298U (en) | 2016-05-17 | 2016-05-17 | A kind of gear measurement device based on laser displacement sensor |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201620445803.2U CN205748298U (en) | 2016-05-17 | 2016-05-17 | A kind of gear measurement device based on laser displacement sensor |
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| CN105823435A (en) * | 2016-05-17 | 2016-08-03 | 扬州大学 | Gear measurement device based on laser displacement sensor and gear measurement method |
| CN106556367A (en) * | 2017-01-09 | 2017-04-05 | 中国工程物理研究院机械制造工艺研究所 | A kind of turn error measurement apparatus of the Aerostatic Spindle |
| CN106736862A (en) * | 2017-03-07 | 2017-05-31 | 华侨大学 | A kind of on-line measurement device and method of contactless turner |
| CN106813584A (en) * | 2017-03-31 | 2017-06-09 | 燕山大学 | Spiral bevel gear key parameter laser detection system and its detection method |
| CN107883871A (en) * | 2017-10-25 | 2018-04-06 | 扬州大学 | A kind of worm measuring method |
| CN107941152A (en) * | 2017-12-25 | 2018-04-20 | 苏州明氏自动化技术有限公司 | Automatic detection device and its system |
| CN108806413A (en) * | 2017-04-28 | 2018-11-13 | 卫国教育科技（河源）有限公司 | A tolerance modeling practical traning platform |
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| CN109238200A (en) * | 2018-09-12 | 2019-01-18 | 中国航发哈尔滨东安发动机有限公司 | A method of detection bevel gear root bores parameter |
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| CN105823435B (en) * | 2016-05-17 | 2017-12-29 | 扬州大学 | A kind of gear measurement device and gear measuring method based on laser displacement sensor |
| CN105823435A (en) * | 2016-05-17 | 2016-08-03 | 扬州大学 | Gear measurement device based on laser displacement sensor and gear measurement method |
| CN106556367A (en) * | 2017-01-09 | 2017-04-05 | 中国工程物理研究院机械制造工艺研究所 | A kind of turn error measurement apparatus of the Aerostatic Spindle |
| CN106736862A (en) * | 2017-03-07 | 2017-05-31 | 华侨大学 | A kind of on-line measurement device and method of contactless turner |
| CN106813584A (en) * | 2017-03-31 | 2017-06-09 | 燕山大学 | Spiral bevel gear key parameter laser detection system and its detection method |
| CN108806413A (en) * | 2017-04-28 | 2018-11-13 | 卫国教育科技（河源）有限公司 | A tolerance modeling practical traning platform |
| JP7325409B2 (en) | 2017-10-23 | 2023-08-14 | グリーソン メトロロジー システムズ コーポレイション | Measurement of Toothed Articles on a Multi-Mechanical Testing Machine Platform Using Non-Contact Sensors |
| CN111226089A (en) * | 2017-10-23 | 2020-06-02 | 格里森计量***股份有限公司 | Measuring toothed articles on a compound machine test platform using non-contact sensors |
| WO2019083932A1 (en) * | 2017-10-23 | 2019-05-02 | Gleason Metrology Systems Corporation | Measurement of toothed articles on a composite machine tester platform utilizing a non-contact sentor |
| US11262190B2 (en) | 2017-10-23 | 2022-03-01 | Gleason Metrology Systems Corporation | Measurement of toothed articles on a composite machine tester platform utilizing a non-contact sensor |
| JP2021500542A (en) * | 2017-10-23 | 2021-01-07 | グリーソン メトロロジー システムズ コーポレイション | Measurement of toothed articles on a multi-machine testing machine platform using non-contact sensors |
| CN107883871A (en) * | 2017-10-25 | 2018-04-06 | 扬州大学 | A kind of worm measuring method |
| CN107941152A (en) * | 2017-12-25 | 2018-04-20 | 苏州明氏自动化技术有限公司 | Automatic detection device and its system |
| CN109029292A (en) * | 2018-08-21 | 2018-12-18 | 孙傲 | A kind of inner surface of container three-dimensional appearance non-destructive testing device and detection method |
| CN109238200B (en) * | 2018-09-12 | 2021-04-27 | 中国航发哈尔滨东安发动机有限公司 | Method for detecting bevel gear root cone parameters |
| CN109238200A (en) * | 2018-09-12 | 2019-01-18 | 中国航发哈尔滨东安发动机有限公司 | A method of detection bevel gear root bores parameter |
| CN109990730A (en) * | 2019-03-26 | 2019-07-09 | 合肥永升机械有限公司 | A kind of the automatically scanning detection device and method of large-scale engineering machinery structural member |
| CN110561610A (en) * | 2019-09-19 | 2019-12-13 | 中建材创新科技研究院有限公司 | Gypsum board thickness measuring system |
| CN110966945A (en) * | 2019-11-06 | 2020-04-07 | 北新建材（嘉兴）有限公司 | System and method for automatically detecting external dimension of wet gypsum board |
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