CN201900513U - Measuring system for gear and special hand-held movable optical back reflector - Google Patents
Measuring system for gear and special hand-held movable optical back reflector Download PDFInfo
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- CN201900513U CN201900513U CN2010206147562U CN201020614756U CN201900513U CN 201900513 U CN201900513 U CN 201900513U CN 2010206147562 U CN2010206147562 U CN 2010206147562U CN 201020614756 U CN201020614756 U CN 201020614756U CN 201900513 U CN201900513 U CN 201900513U
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Abstract
The utility model discloses a measuring system for a gear and a special hand-held movable optical back reflector. The global measuring equipment of the system adopts a multi-path laser interfere tracking system, wherein the multi-path laser interfere tracking system comprises at least three laser interfere tracking instruments, the hand-held movable optical back reflector and a fixed optical back reflector; the hand-held movable optical back reflector is matched with the at least three laser interfere tracking instruments to use and used for carrying out space positioning on the gear to be measured; the fixed optical back reflector is used for carrying out space positioning on front-end measuring equipment; the hand-held movable optical back reflector comprises a reflecting mirror and a positioning mechanism; and the positioning mechanism is connected with the reflecting mirror and used for enabling the hand-held movable optical back reflector to move on a datum plane of the gear to be measured along a specific direction. The measuring system and the measuring method can be used for accurately measuring super-large high-precision gears with the diameters of 3,000-10,000mm, the minimum modulus of 6mm and the precision of over 6 grades. In addition, the manufacturing level of the super-large high-precision gears is improved.
Description
Technical field
The utility model relates to the on-position measure system of super-huge gear.Measurement space scope super large when detecting at super-huge gear, tested characteristic quantity is trickle, type is various, the technological difficulties of local measurement spatial complex, this measuring system and measuring method have adopted the measurement in a closed series system that the closely front end measurement of space global measuring and reduced size is on a large scale combined.
Background technology
This area is defined as super-huge gear with diameter greater than the gear of 3000mm.
The P300 maximum detection diameter of gear measuring center Germany Klingelnberg company at present the biggest in the world is 3000mm.And for the super-huge gear of diameter greater than 3000mm, owing to there is not independently measuring instrument, unique detection method is directly the gear measurement device to be integrated in to carry out on-position measure on the gear cutting machine at present, and according to measurement result lathe parameter is adjusted in real time.Yet this on-position measure system must depend on the precision of lathe self, if lathe self has problems, will directly have influence on certainty of measurement, and is difficult to know and separates because the measure error that lathe brings.Therefore, to be difficult to satisfy diameter be that 3000～10000mm, minimum modulus are the measurement requirement of 6mm, 6 grades of precision and above super-huge high class gear for above-mentioned on-position measure mode.Develop the super-huge gear detection technique on the throne that not influenced by the machining tool precision is the technical barrier of puzzlement this area always.
Yet, make the detection on the throne of super-huge gear not be subjected to the influence of machining tool precision, be faced with measurement space scope super large again, and local measurement feature complexity, precision, various technological difficulties and the contradiction of type.In order to solve this contradiction and difficult point, the utility model has adopted a basic thinking, be about on a large scale the space global measuring and closely among a small circle the local measurement combine, constitute the measurement in a closed series system, with global measuring equipment as overall overall precision control device, set up world coordinates control and constraint, realize dissimilar gear local parameter measurement of coordinates with the local measurement device, under cooperating, Survey Software obtains the geometric parameter of tested super-huge gear, as physical dimension, flank profil, helix, contact wire transverse tooth thickness, tooth pitch etc.
There has been the people that above-mentioned measurement in a closed series system is put into practice.Such as publication number is that the Chinese utility application of CN101551240A discloses a kind of large-scale gear measuring method based on laser tracking technology, and its key step is: 1) utilize laser tracker to set up the transverse plane and the datum axis of tested gear; 2) determine the position of tested gear and three-dimensional coordinates measurement unit; 3) adjusting the three-dimensional coordinates measurement unit measures with respect to the position of tested gear and to parameter.This application realizes said space on a large scale global measuring in the above-mentioned basic ideas by laser tracker as global measuring equipment in fact exactly, realize that as the front end measurement device closely front end is measured by the three-dimensional coordinates measurement unit, by its step 2) determined the position of tested gear and three-dimensional coordinates measurement unit, also just realized the measurement in a closed series system that global measuring and front end measurement are combined.Though no longer be subjected to the influence of machining tool precision by this method on-position measure large gear, but still there are the following problems:
At first, what laser tracker adopted is angle sensor and the spherical coordinates measuring principle of surveying the appearance combination (can be laser tracker and the measuring principle of putting down in writing in the open text of patent of invention of CN101371160A thereof with reference to publication number), when long range measurements, be subjected to the influence of angle-measurement accuracy, along with distance increases, the space coordinates certainty of measurement obviously descends.AT901-LR is an example with the up-to-date model laser tracker of the highest Leica of precision, and its spatial point coordinate time range finding uncertainty of measuring the 10m place is 10 microns, angle uncertainty ± 10 μ m+5 μ m/m, and then total coordinate points uncertainty of measurement is
And large-scale wind generating, large-scale forging equipment, large-scale metallurgical equipment and the required gear of large ship transmission device are diameter mostly is that 3000～10000mm, minimum modulus are 6mm, 6 grades of precision and above super-huge high class gear.As shown in the table, specified diameter 3000～10000mm among the GB/T10095.1-2001, modulus greater than the accuracy of gear requirement of 6 class precisions of 6mm is:
| Project | Reference diameter 3m | Reference diameter 10m |
| Monodentate is apart from limit deviation ± f pt | ≥18μm | ≥27μm |
| Tooth pitch accumulation gross tolerance F p | ≥113μm | ≥182μm |
| Flank profil gross tolerance F a | ≥31μm | ≥47μm |
| Profile geometry tolerance f fa | ≥24μm | ≥36μm |
| Flank profil tilt boundary deviation ± f Ha | ≥20μm | ≥29μm |
| Helix gross tolerance F β(more than the facewidth 40mm) | ≥21μm | ≥29μm |
| Helix shape tolerance f fβ(more than the facewidth 40mm) | ≥15μm | ≥20μm |
| Helix tilt boundary deviation ± f Hβ(more than the facewidth 40mm) | ≥15μm | ≥20μm |
| Runout tolerance F r | ≥90μm | ≥144μm |
As seen, the precision of using laser tracker to carry out space coordinates measurement on a large scale can not satisfy the measurement requirement of this type gear.
Secondly, what the three-dimensional coordinates measurement unit adopted is mechanical touch sensor, easily measurement result is had a negative impact.
The utility model content
The technical problem that the utility model solves provides the high gear measurement system of certainty of measurement.
The application's gear measurement system comprises global measuring equipment, front end measurement device and the data handling system that links to each other with the front end measurement device with described global measuring equipment respectively, described global measuring equipment adopts multi-path laser to interfere tracing system, this multi-path laser interferes tracing system to comprise at least three laser interference trackers, thereby be used with described at least three laser interference trackers tested gear is carried out sterically defined hand-held movable optics inverse reflector, and the fixed optics inverse reflector that connects with the movable partially rigid of front end measurement device, the location structure that described hand-held movable optics inverse reflector comprises speculum and connects and be used to make this hand-held movable optics inverse reflector to move at the datum level upper edge of tested gear specific direction with described speculum.
The application's gear measurement system has adopted multi-path laser to interfere tracing system to realize global measuring than existing gear measurement system.It is prior art that multi-path laser is interfered the measuring principle of tracing system, specifically can be referring to the introduction in " research of Multi-Path Laser Tracking Measuring System, Zhang Guoxiong etc., University Of Tianjin's journal,, the 36th volume, the 1st phase in 2003 ".But with regard to present multi-path laser was interfered tracing system, wherein employed optics inverse reflector was fixed optics inverse reflector, promptly must be rigidly fixed to it on measured object and along with measured object moves together by connector in use.Such as Granted publication number is disclosed target mirror combination in the patent of invention disclosed a kind of object space position of CN1078703C and the attitude laser tracking measurement system.For these reasons, existing multi-path laser interferes tracing system can only be used for tracking measurement to mobiles, such as to verification of machine tool chief axis movement locus or the like, thereby can not be directly used in the super-huge gear under remaining static is measured.The limitation that fixed optics inverse reflector uses this shows, owing to can not directly interfere tracing system directly to apply to gear measurement with having multi-path laser now.For the utility model, in order to realize that multi-path laser is interfered the application of tracer technique on gear measurement, also comprised a kind of hand-held movable optics inverse reflector in the technical solution of the utility model, should hand-held movable optics inverse reflector gauger is hand-held operate the location structure that its structure comprises speculum and connects and be used to make this hand-held movable optics inverse reflector to move at the datum level upper edge of tested gear specific direction with described speculum.As seen, because the appearance of hand-held movable optics inverse reflector can overcome existing multi-path laser and interfere tracing system can not be used for gear is carried out sterically defined technical difficulty.Therefore, the utility model has substantive distinguishing features compared to existing technology.
Because multi-path laser interferes being based on of tracing system utilization to survey long polygonal space coordinates metering system, adopt the laser interference tracker more than three to follow the tracks of and measure the distance of measured point from different spatial simultaneously during measurement, resolve the measured point space coordinates by the constraint of distance polygon with respect to the laser interference tracker.This measuring method does not relate to angular surveying, therefore has very high precision.Such as same 10m place spatial point, to follow the trail of with three road laser and to survey long technology difference measured X, Y, Z axle, the separate unit range accuracy is 0.2 μ m+0.3 μ m/m, sets up three laser interference length-measurings by it and resolves the measurement of coordinates uncertainty and be
As seen, for the spatial point measurement of coordinates, because the amplification of laser tracker angle measurement error, cause uncertainty of measurement bigger, even the uncertainty of measurement of the up-to-date model laser tracker of the Leica that service precision is the highest AT901-LR still is 60.83 μ m, the uncertainty that is measuring system has surpassed diameter 3000～10000mm, modulus greater than the six class precision grade single gear tooths of 6mm apart from limit deviation, the flank profil gross tolerance, the profile geometry tolerance, flank profil tilt boundary deviation, the helix gross tolerance, the helix shape tolerance, the multinomial required precision of helix tilt boundary deviation; And change by multi-path laser interference length-measuring systematic survey, owing to do not relate to angular surveying, uncertainty of measurement is 5.5 μ m, certainty of measurement will be much higher than laser tracking measurement, can satisfy fully and measure requirement.Therefore, the utility model also has progress compared to existing technology.
Multi-path laser is interfered three laser interference trackers of the minimum needs of tracing system, and the many more precision of laser interference tracker are high more in theory.But adopt too much laser interference tracker, not only expensive, and layout configurations etc. is also more complicated, require highlyer, and the precision raising is limited.Therefore as a kind of preferred collocation form, described multi-path laser interferes tracing system to adopt four laser interference trackers, these four laser interference trackers are separately positioned on the position near four corners between the measurement zone that is made of these four laser interference trackers, and described front end measurement device and this tested gear all are positioned at the inboard between described measurement zone.Interfere the characteristics of tracer technique, above-mentioned this arrangement to help utilizing redundant data to be finished according to multi-path laser from self coordinate of demarcating each laser interference tracker.
Concrete mode as the location structure in the hand-held movable optics inverse reflector, described location structure comprises the contacted location of the hole wall body that is used for the centre bore of tested gear, and be arranged on the upper end of this location body and the positioning seat of described speculum is installed, during use when described location body when the hole wall of the centre bore of tested gear moves in a circle, the lower surface of described positioning seat and the datum end face of tested gear keep fitting.In the process that the location body moves in a circle along the hole wall of the centre bore of tested gear, by aforesaid at least three laser interference trackers the speculum on the hand-held movable optics inverse reflector is carried out laser and follow the tracks of, can set up the axis of tested gear center hole and the datum end face of tested gear simultaneously.The intersection point of the datum end face of the axis of described tested gear center hole and tested gear is defined as tested gear coordinate system σ
1The coordinate central point, so tested gear has been carried out space orientation.The advantage of above-mentioned location structure is can set up the axis of tested gear center hole and the datum end face of tested gear simultaneously by its motion, and it is higher therefore to measure efficient.
Certainly, location main body structure design is reduced measure error because of consideration as far as possible.Therefore the utility model has also carried out following specific design to above-mentioned location body.Promptly, described location body comprises that the upper end is equipped with the support bar of described positioning seat, and the rotary body that is arranged on this support bar lower end, this location body contacts with the hole wall of the centre bore of tested gear by described rotary body, and this rotary body and the coaxial setting of described speculum.The advantage of this design is: 1) by the contact area between the hole wall of centre bore that rotary body can reduce to locate body and tested gear is set, so just can avoid owing to the excessive foozle because of locating body that produces of contact area between the hole wall of location body and the centre bore of tested gear causes appreciable impact to measurement result; 2) because rotary body and the coaxial setting of described speculum, even if therefore rotation has taken place in the location body in moving process, also can not cause the central point of speculum to depart from the running orbit of its reservation, the laser of at least three laser interference trackers be followed the tracks of range finding can not exert an influence.
Mention in the background technology of this specification, what carry out at present that front end measurement device that large gear measures adopted is the three-dimensional coordinates measurement unit, is mechanical touch sensor and the three-dimensional coordinates measurement unit adopts, easily measurement result is exerted an influence.In order to overcome the problem that this mechanical contact type measurement produces, the front end measurement device among the application comprises the orthogonal coordinates measurement mechanism and is installed in laser displacement sensor on the movable main shaft of this orthogonal coordinates measurement mechanism.Can realize adopting laser triangulation that the profile of tested gear is carried out laser scanning measurement by the laser displacement sensor on the movable main shaft that is installed in the orthogonal coordinates measurement mechanism, therefore can not contact in the measuring process, just overcome the variety of issue that present mechanical contact type measurement produced yet with tested gear.Though laser triangulation is a prior art, do not use to some extent at present in the high-acruracy survey field of large-scale or super-huge gear.The utility model is in order to overcome the problem that adopts the three-dimensional coordinates measurement unit to be produced, taked the measurement in a closed series system that will combine with the front end measurement of being undertaken by laser triangulation by the global measuring that multi-path laser interferes tracer technique to carry out, thereby utilize multi-path laser to interfere tracer technique to realize accurate location, for obstacle has been cleared away in the utilization of laser triangulation on large-scale or super-huge gear measurement to laser displacement sensor.
Gear measurement of the present utility model system adopts following two kinds of methods to carry out the measurement of gear.
Method one:
This method has adopted the measurement in a closed series system that global measuring and front end measurement are combined, and specifically comprises the steps:
A, tested gear is carried out space orientation, set up tested gear coordinate system σ by at least three laser interference trackers and the hand-held movable optics inverse reflector that is used
1Wherein, the described hand-held movable optics inverse reflector location structure that comprises speculum and connects and be used to make this hand-held movable optics inverse reflector to move at the datum level upper edge of tested gear specific direction with described speculum;
B, fixed optics inverse reflector is installed on the movable part of front end measurement device, start this front end measurement device then tested gear is carried out the front end measurement, thereby the movement locus that passes through described at least three fixed optics inverse reflectors of laser interference tracker real-time tracing simultaneously obtains this fixed optics inverse reflector at tested gear coordinate system σ
1In each instantaneous coordinate value;
C, by data handling system to the measurement data of front end measurement device and the fixed optics inverse reflector that in step b, obtains at tested gear coordinate system σ
1In each instantaneous coordinate figure carry out integrated data processing, obtain the gear measurement result.
Wherein, thus described front end measurement device adopts laser triangulation that the profile of tested gear is carried out laser scanning realizes that said front end measures.
Method two:
This method has adopted the measurement in a closed series system that global measuring and front end measurement are combined, and specifically comprises the steps:
A, tested gear is carried out space orientation, set up tested gear coordinate system σ by at least three laser interference trackers and the hand-held movable optics inverse reflector that is used
1Wherein, the described hand-held movable optics inverse reflector location structure that comprises speculum and connects and be used to make this hand-held movable optics inverse reflector to move at the datum level upper edge of tested gear specific direction with described speculum;
B, by described at least three laser interference trackers and the fixed optics inverse reflector that is used the front end measurement device is carried out space orientation, the quadrature mark of setting up orthogonal coordinates measurement mechanism in this front end measurement device is σ
2, and set up described tested gear coordinate system σ by coordinate transform
1Marking with quadrature is σ
2Relation;
C, by this front end measurement device tested gear is carried out front end and measure, and be σ to the relative quadrature mark of movable main shaft in the orthogonal coordinates measurement mechanism in the measurement data of front end measurement device, the measuring process by data handling system
2Changes in coordinates and the tested gear coordinate system σ that in step b, obtains
1Marking with quadrature is σ
2Relation carry out integrated data processing, obtain the gear measurement result.
Wherein, thus described front end measurement device adopts laser triangulation that the profile of tested gear is carried out laser scanning realizes that said front end measures.
The utility model also provides the hand-held movable optics inverse reflector that is exclusively used in said system and method, the location structure that this hand-held movable optics inverse reflector comprises speculum and connects and be used to make this hand-held movable optics inverse reflector to move at the datum level upper edge of tested gear specific direction with described speculum.
Concrete mode as the location structure in the hand-held movable optics inverse reflector, described location structure comprises the contacted location of the hole wall body that is used for the centre bore of tested gear, and be arranged on the upper end of this location body and the positioning seat of described speculum is installed, when described location body during along the hole wall circumferential movement of the centre bore of tested gear, the lower surface of described positioning seat and the datum end face of tested gear keep fitting during use.
The utility model has also carried out following specific design to above-mentioned location body: described location body comprises that the upper end is equipped with the support bar of described positioning seat, and the rotary body that is arranged on this support bar lower end, this location body contacts with the hole wall of the centre bore of tested gear by described rotary body, and this rotary body and the coaxial setting of described speculum.
As further improvement, described rotary body is in the form of annular discs.
The beneficial effects of the utility model are: the application's measuring system and measuring method can be that 3000～10000mm, minimum modulus are that 6mm, 6 grades of precision and above super-huge high class gear are measured the manufacture level of the super-huge high class gear of raising to diameter accurately.
Description of drawings
Fig. 1 is the structural representation of the application's gear measurement system.
Fig. 2 is the working state figure of front end measurement device in the application's gear measurement system.
Fig. 3～Fig. 8 is respectively the user mode figure of various hand-held movable optics inverse reflectors in the application's gear measurement system.
Be labeled as among the figure: tested gear coordinate system σ
1, quadrature mark is σ
2, between laser interference tracker 1, measurement zone 2, tested gear 3, front end measurement device 4, movable main shaft 5, laser displacement sensor 6, orthogonal coordinates measurement mechanism 7, speculum 8, positioning seat 9, support bar 10, rotary body 11, global measuring equipment 12, hand-held movable optics inverse reflector 13, rotary body 14, location body 15, fixed optics inverse reflector 16, centre bore 17, datum end face 18.
The specific embodiment
Below in conjunction with drawings and Examples the utility model is described further.
As Fig. 1～gear measurement system shown in Figure 8, comprise global measuring equipment 12, front end measurement device 4 and the data handling system that links to each other with front end measurement device 4 with described global measuring equipment 12 respectively, described global measuring equipment 12 adopts multi-path laser to interfere tracing system, this multi-path laser interferes tracing system to comprise four laser interference trackers 1, thereby be used with described four laser interference trackers 1 tested gear 3 is carried out sterically defined hand-held movable optics inverse reflector 13, and be used for the fixed optics inverse reflector 16 that connects with the movable partially rigid of front end measurement device 4, the location structure that described hand-held movable optics inverse reflector 13 comprises speculum 8 and connects and be used to make this hand-held movable optics inverse reflector 13 to move at the datum level upper edge of tested gear 3 specific direction with described speculum 8, this location structure comprises the contacted location of the hole wall body 15 that is used for the centre bore 17 of tested gear 3, and be arranged on the upper end of this location body 15 and the positioning seat 9 of described speculum 8 is installed, when described location body 15 during along the hole wall circumferential movement of the centre bore 17 of tested gear 3, the datum end face 18 of the lower surface of described positioning seat 9 and tested gear 3 keeps being close to state during use; In addition, described four laser interference trackers 1 are separately positioned on the position near four corners of 2 between the measurement zone that is made of these four laser interference trackers 1, and described front end measurement device 4 and this tested gear 3 all are positioned between described measurement zone 2 inboard; In addition, in order to overcome existing front end measurement device because of the problem that mechanical contact type measurement produced, the front end measurement device 4 in the utility model comprises orthogonal coordinates measurement mechanism 7 and is installed in laser displacement sensor 6 on the movable main shaft 5 of this orthogonal coordinates measurement mechanism 7.
This gear measurement system adopts following two kinds of methods to carry out the measurement of gear.
Method one:
This method has adopted the measurement in a closed series system that global measuring and front end measurement are combined, and specifically comprises the steps:
A, carry out space orientation, set up tested gear coordinate system σ by four laser interference trackers 1 and 13 pairs of tested gears 3 of hand-held movable optics inverse reflector of being used
1Wherein, described hand-held movable optics inverse reflector 13 location structure that comprises speculum 8 and connects and be used to make this hand-held movable optics inverse reflector 13 to move at the datum level upper edge of tested gear 3 specific direction with described speculum 8;
B, fixed optics inverse reflector 16 is installed on the movable part of front end measurement device 4, start 4 pairs of tested gears 3 of this front end measurement device then and carry out the front end measurement, thereby the movement locus that passes through described four fixed optics inverse reflectors 16 of laser interference tracker 1 real-time tracing simultaneously obtains this fixed optics inverse reflector 16 at tested gear coordinate system σ
1In each instantaneous coordinate value;
C, by data handling system to the measurement data of front end measurement device 4 and the fixed optics inverse reflector 16 that in step b, obtains at tested gear coordinate system σ
1In each instantaneous coordinate figure carry out integrated data processing, obtain the gear measurement result.
Wherein, thus described front end measurement device 4 adopts laser triangulation that the profile of tested gear 3 is carried out laser scanning realizes that said front end measures.
Method two:
This method has adopted the measurement in a closed series system that global measuring and front end measurement are combined, and specifically comprises the steps:
A, carry out space orientation, set up tested gear coordinate system σ by four laser interference trackers 1 and 13 pairs of tested gears 3 of hand-held movable optics inverse reflector of being used
1Wherein, described hand-held movable optics inverse reflector 13 location structure that comprises speculum 8 and connects and be used to make this hand-held movable optics inverse reflector 13 to move at the datum level upper edge of tested gear 3 specific direction with described speculum 8;
B, carry out space orientation by described four laser interference trackers 1 and 16 pairs of front end measurement devices of fixed optics inverse reflector 4 of being used, the quadrature mark of setting up orthogonal coordinates measurement mechanism 7 in this front end measurement device 4 is σ
2, and set up described tested gear coordinate system σ by coordinate transform
1Marking with quadrature is σ
2Relation;
C, carry out front end by 4 pairs of tested gears 3 of this front end measurement device and measure, and by data handling system movable main shaft 5 relative quadratures in the orthogonal coordinates measurement mechanism 7 in the measurement data of front end measurement device 4, the measuring process to be marked be σ
2Changes in coordinates and the tested gear coordinate system σ that in step b, obtains
1Marking with quadrature is σ
2Relation carry out integrated data processing, obtain the gear measurement result.
Wherein, thus described front end measurement device 4 adopts laser triangulation that the profile of tested gear 3 is carried out laser scanning realizes that said front end measures.
The applicant it needs to be noted, the quadrature mark of setting up orthogonal coordinates measurement mechanism 7 in this front end measurement device 4 among the step b of method two is that the publication number mentioned in concrete grammar and this specification background technology of σ 2 is that related content in the disclosed large-scale gear measuring method of Chinese invention patent application of CN101551240A is consistent.
Embodiment 1
As shown in Figure 5, described location body 15 be a upper end be equipped with described positioning seat 9 and with the described speculum 8 coaxial long cylinder structures that are provided with.Carry out radial location thereby the inner cylinder face of the hole wall of the centre bore 17 of the external cylindrical surface of this long cylinder structure and tested gear 3 is tangent during use.Because the tangent line between the inner cylinder face of the hole wall of the external cylindrical surface of this long cylinder structure and the centre bore 17 of tested gear 3 in most cases is a straight line, so its straightness error will produce certain influence to measurement result.
As shown in Figure 6, described location body 15 comprises that the upper end is equipped with the support bar 10 of described positioning seat 9, and the rotary body 11 that is arranged on these support bar 10 lower ends, this location body 15 contacts with the hole wall of the centre bore 17 of tested gear 3 by described rotary body 11, and this rotary body 11 and described speculum 8 coaxial settings; Wherein, this rotary body 11 is spherical.Rotary body 11 contacts with the inner cylinder face point of the hole wall of the centre bore 17 of tested gear 3 during measurement, therefore this contact point might be positioned at the profile peak value or the profile valley place of described hole wall surface roughness, and therefore the surface roughness of the hole wall of the centre bore 17 of tested gear 3 will produce certain influence to measurement result.
As shown in Figure 3, described location body 15 comprises that the upper end is equipped with the support bar 10 of described positioning seat 9, and the rotary body 11 that is arranged on these support bar 10 lower ends, this location body 15 contacts with the hole wall of the centre bore 17 of tested gear 3 by described rotary body 11, and this rotary body 11 and described speculum 8 coaxial settings; Wherein, this rotary body 11 is in the form of annular discs.Like this, between the inner cylinder face of rotary body 11 and the hole wall of the centre bore 17 of tested gear 3 for and the less face of contact area contact, both can avoid embodiment 1 cathetus degree error to the influence that measurement result produces, can avoid the influence that the contact-making surface roughness produces measurement result among the embodiment 2 again.
The foregoing description 1～3 is the situation of straight hole at the centre bore 17 of tested gear 3 all.When the centre bore 17 of tested gear 3 is a taper hole, can take hand-held movable optics inverse reflector 13 shown in Figure 7.As shown in Figure 7, two spherical rotary body 11 and the spherical rotary body 14 with described speculum 8 coaxial settings of having connected on the support bar 10, and rotary body 11 diameters of lower end are greater than top rotary body 14.Like this, can select to contact with the hole wall of the centre bore 17 of tested gear 3 according to the size of centre bore 17 taperings by rotary body 11 or rotary body 14.But, these hand-held movable optics inverse reflector 13 same problems that measurement result exerted an influence because of the contact-making surface roughness that exist; And, when same centre bore 17 is taken multiple measurements, also may occur once contacting, and the problem that another time contacted with the hole wall of the centre bore 17 of tested gear 3 by rotary body 14 causes measure error by the hole wall of rotary body 11 with the centre bore 17 of tested gear 3.
As Fig. 8, this hand-held movable optics inverse reflector 13 changes rotary body 11 and rotary body 14 into discoid on the basis of embodiment 4, the influence that can avoid the contact-making surface roughness that measurement result is produced.But exist equally when same centre bore 17 taken multiple measurements, may occur once contacting by the hole wall of rotary body 11 with the centre bore 17 of tested gear 3, and the problem that another time contacted with the hole wall of the centre bore 17 of tested gear 3 by rotary body 14 causes the problem of measure error.
In order to overcome the problem of embodiment 4 and embodiment 5, embodiment 6 has adopted with embodiment 3 same structures but the hand-held movable optics inverse reflector 13 that the length dimension of support bar 10 increases is to some extent measured the bigger centre bore of tapering 17.For centre bore 17 tapering problems, can do a series of size differences but structure such as embodiment 3 said hand-held movable optics inverse reflectors 13 can satisfy the requirement of different taperings and the requirement of measuring different section.
Claims (10)
1. gear measurement system, comprise global measuring equipment (12), front end measurement device (4) and the data handling system that links to each other with front end measurement device (4) with described global measuring equipment (12) respectively, it is characterized in that: described global measuring equipment (12) adopts multi-path laser to interfere tracing system, this multi-path laser interferes tracing system to comprise at least three laser interference trackers (1), with described at least three laser interference trackers (1) thus be used tested gear (3) carried out sterically defined hand-held movable optics inverse reflector (13), and being used for the fixed optics inverse reflector (16) that connects with the movable partially rigid of front end measurement device (4), described hand-held movable optics inverse reflector (13) comprises speculum (8) and connects and be used to make the location structure of this hand-held movable optics inverse reflector (13) in the motion of the datum level upper edge of tested gear (3) specific direction with described speculum (8).
2. gear measurement as claimed in claim 1 system, it is characterized in that: described multi-path laser interferes tracing system to adopt four laser interference trackers (1), these four laser interference trackers (1) are separately positioned on the position near four corners of (2) between the measurement zone that is made of these four laser interference trackers (1), and described front end measurement device (4) and this tested gear (3) all are positioned at the inboard of (2) between described measurement zone.
3. gear measurement as claimed in claim 1 system, it is characterized in that: described location structure comprises the contacted location of the hole wall body (15) that is used for the centre bore (17) of tested gear (3), and be arranged on the upper end of this location body (15) and the positioning seat (9) of described speculum (8) is installed, during use when described location body (15) when the hole wall of the centre bore (17) of tested gear (3) moves in a circle, the datum end face (18) of the lower surface of described positioning seat (9) and tested gear (3) keeps being close to state.
4. gear measurement as claimed in claim 3 system, it is characterized in that: described location body (15) comprises that the upper end is equipped with the support bar (10) of described positioning seat (9), and the rotary body (11) that is arranged on this support bar (10) lower end, this location body (15) contacts with the hole wall of the centre bore (17) of tested gear (3) by described rotary body (11), and this rotary body (11) and the coaxial setting of described speculum (8).
5. gear measurement as claimed in claim 4 system, it is characterized in that: described rotary body (11) is in the form of annular discs.
6. as any described gear measurement of claim system in the claim 1～5, it is characterized in that: described front end measurement device (4) comprises orthogonal coordinates measurement mechanism (7) and is installed in laser displacement sensor (6) on the movable main shaft (5) of this orthogonal coordinates measurement mechanism (7).
7. be exclusively used in the hand-held movable optics inverse reflector of said system, it is characterized in that: the location structure that comprises speculum (8) and connect and be used to make this hand-held movable optics inverse reflector (13) to move at the datum level upper edge of tested gear (3) specific direction with described speculum (8).
8. hand-held movable optics inverse reflector as claimed in claim 7, it is characterized in that: described location structure comprises the contacted location of the hole wall body (15) that is used for the centre bore (17) of tested gear (3), and be arranged on the upper end of this location body (15) and the positioning seat (9) of described speculum (8) is installed, during use when described location body (15) when the hole wall of the centre bore (17) of tested gear (3) moves in a circle, the datum end face (18) of the lower surface of described positioning seat (9) and tested gear (3) keeps being close to state.
9. hand-held movable optics inverse reflector as claimed in claim 8, it is characterized in that: described location body (15) comprises that the upper end is equipped with the support bar (10) of described positioning seat (9), and the rotary body (11) that is arranged on this support bar (10) lower end, this location body (15) contacts with the hole wall of the centre bore (17) of tested gear (3) by described rotary body (11), and this rotary body (11) and the coaxial setting of described speculum (8).
10. hand-held movable optics inverse reflector as claimed in claim 9, it is characterized in that: described rotary body (11) is in the form of annular discs.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206147562U CN201900513U (en) | 2010-11-19 | 2010-11-19 | Measuring system for gear and special hand-held movable optical back reflector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206147562U CN201900513U (en) | 2010-11-19 | 2010-11-19 | Measuring system for gear and special hand-held movable optical back reflector |
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| Publication Number | Publication Date |
|---|---|
| CN201900513U true CN201900513U (en) | 2011-07-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2010206147562U Expired - Lifetime CN201900513U (en) | 2010-11-19 | 2010-11-19 | Measuring system for gear and special hand-held movable optical back reflector |
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| CN (1) | CN201900513U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102059588A (en) * | 2010-11-19 | 2011-05-18 | 二重集团（德阳）重型装备股份有限公司 | Gear measuring system, gear measuring method and special handheld movable optical reverse reflector |
| CN103223627A (en) * | 2013-03-19 | 2013-07-31 | 中信重工机械股份有限公司 | Method for detecting meshing line error of big gear wheel on line |
| CN103223628A (en) * | 2013-03-19 | 2013-07-31 | 中信重工机械股份有限公司 | Method for detecting tooth profile error of big gear wheel on line |
| WO2013144649A1 (en) * | 2012-03-29 | 2013-10-03 | The Secretary Of State For Business, Innovation & Skills | Coordinate measurement system and method |
| US9720088B2 (en) | 2012-03-29 | 2017-08-01 | The Secretary Of State For Business, Innovation & Skills | Measurement device, system and method |
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2010
- 2010-11-19 CN CN2010206147562U patent/CN201900513U/en not_active Expired - Lifetime
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102059588A (en) * | 2010-11-19 | 2011-05-18 | 二重集团（德阳）重型装备股份有限公司 | Gear measuring system, gear measuring method and special handheld movable optical reverse reflector |
| CN102059588B (en) * | 2010-11-19 | 2013-06-05 | 二重集团（德阳）重型装备股份有限公司 | Gear measuring system, gear measuring method and special handheld movable optical reverse reflector |
| WO2013144649A1 (en) * | 2012-03-29 | 2013-10-03 | The Secretary Of State For Business, Innovation & Skills | Coordinate measurement system and method |
| US9720088B2 (en) | 2012-03-29 | 2017-08-01 | The Secretary Of State For Business, Innovation & Skills | Measurement device, system and method |
| US9791569B2 (en) | 2012-03-29 | 2017-10-17 | The Secretary Of State For Business, Innovation & Skills | Coordinate measurement system and method |
| CN103223627A (en) * | 2013-03-19 | 2013-07-31 | 中信重工机械股份有限公司 | Method for detecting meshing line error of big gear wheel on line |
| CN103223628A (en) * | 2013-03-19 | 2013-07-31 | 中信重工机械股份有限公司 | Method for detecting tooth profile error of big gear wheel on line |
| CN103223627B (en) * | 2013-03-19 | 2015-12-23 | 中信重工机械股份有限公司 | A kind of method of on-line checkingi gear wheel gearing line error |
| CN103223628B (en) * | 2013-03-19 | 2016-01-20 | 中信重工机械股份有限公司 | A kind of method of on-line checkingi gear wheel profile error |
| DE112018004038B4 (en) | 2017-08-07 | 2021-11-04 | Apre Instruments, Inc. | Measurement of the position of objects in space |
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