CN101688766B - Coordinate measurement device for determining spatial coordinates of a measurement object, and rotating-swivel mechanism for such a coordinate measurement device - Google Patents
Coordinate measurement device for determining spatial coordinates of a measurement object, and rotating-swivel mechanism for such a coordinate measurement device Download PDFInfo
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- CN101688766B CN101688766B CN200880023638XA CN200880023638A CN101688766B CN 101688766 B CN101688766 B CN 101688766B CN 200880023638X A CN200880023638X A CN 200880023638XA CN 200880023638 A CN200880023638 A CN 200880023638A CN 101688766 B CN101688766 B CN 101688766B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
- G01B5/004—Measuring arrangements characterised by the use of mechanical techniques for measuring coordinates of points
- G01B5/008—Measuring arrangements characterised by the use of mechanical techniques for measuring coordinates of points using coordinate measuring machines
- G01B5/012—Contact-making feeler heads therefor
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B21/00—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant
- G01B21/02—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring length, width, or thickness
- G01B21/04—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring length, width, or thickness by measuring coordinates of points
- G01B21/047—Accessories, e.g. for positioning, for tool-setting, for measuring probes
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B7/00—Measuring arrangements characterised by the use of electric or magnetic techniques
- G01B7/004—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring coordinates of points
- G01B7/008—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring coordinates of points using coordinate measuring machines
- G01B7/012—Contact-making feeler heads therefor
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- A Measuring Device Byusing Mechanical Method (AREA)
Abstract
A coordinate measurement device for determining spatial coordinates of a measurement object has a scanning head with a scanning head sensor system. The scanning head can be moved relative to the measurement object. The scanning head holds a scanning probe (28) for scanning the measurement object. The scanning probe (28) can be coupled to the scanning head in a spatially adjustable manner via a passive rotation-swivel mechanism (60). The passive rotation-swivel mechanism (60) has a gearbox (86, 92) with an input drive side and an output drive side, wherein the output drive side is coupled to the scanning probe (28) in order to displace the scanning probe (28) relative to the scanning head. The input drive side has at least one access (88) for transmitting an external drive torque for displacing the scanning probe (28).
Description
Technical field
The present invention relates to a kind of coordinate measuring apparatus that is used for confirming the volume coordinate on the measuring object, this coordinate measuring apparatus has: the probe of band probe sensor system; Be designed for the framed structure that probe is moved with respect to measuring object; The probe/stylus that is used for the contact measurement object; And passive/passive rotating-swivel mechanism, with mode adjustable on the space probe is attached to probe through this passive rotating-swivel mechanism.
In addition, the invention still further relates to a kind of passive rotating-swivel mechanism that is used for above-mentioned coordinate measuring apparatus.
Background technology
For example, by known above-mentioned coordinate measuring apparatus of DE 196 05 776 A1 and above-mentioned rotating-swivel mechanism.
This known coordinate measuring apparatus has probe, and this probe has the probe on the bottom free end of the sleeve that is fixed on vertical setting.But this sleeve in the vertical direction moves, thereby makes probe admit the test board of measuring object to move perpendicular to being used to.This sleeve itself is disposed on the crossbeam of gate and can moves in this crossbeam upper edge first horizontal direction.This gate can move on second horizontal direction with sleeve, thereby probe can be moved on three mutually perpendicular direction in spaces altogether.Probe has defined the measurement volumes that can confirm the volume coordinate of measuring object along the range of three axis of movements.
For measuring, measuring object is arranged on the test board.Then, touching the measurement point of picking out on the measuring object with the free most advanced and sophisticated contact of probe.Then, can confirm the volume coordinate of the measurement point that quilt is contacted by position and the probe of probe in measurement volumes with respect to the skew/deviation of probe.Can confirm the physical dimension even the contour of object of measuring object through confirm a plurality of volume coordinates in different measurement point.The common application of this coordinate measuring apparatus is the workpiece calibration that is used for quality monitoring.
The measurement point of measuring object often is positioned at the position that probe is difficult to arrival, for example when needing to confirm the degree of depth in the hole of lateral arrangement on measuring object.This in order to arrive " hidden " measurement point, probe that known use is different and/or probe combinations.For example in a kind of existing probe configuration, be furnished with probe transverse to the Z axle of coordinate measuring apparatus.In order to carry out the measuring task of multiple complicacy, must often change probe and/or probe combinations.This point is disadvantageous, because the replacing probe is consuming time and then prolonged the time that is used to measure.In addition, (measurement) dirigibility/adaptability is limited to available probe combinations.If for example need confirm the degree of depth, then need suitable probe or suitable probe combinations with respect to the hole of 45 ° of the surface tilt of measuring object.
DE 196 05 776 A1 that preceding text are mentioned propose a kind of probe with passive rotating-swivel mechanism.This rotating-swivel mechanism can change the locus of probe with respect to probe.For example, probe can be swung the angle of about 30 ° or 40 ° with respect to the Z axle, can also rotate around the Z axle.Rotating-swivel mechanism among DE 19,605 776 A1 does not have the drive unit (therefore being called passive rotating-swivel mechanism) that is used to implement this rotation and oscillating motion.In order to regulate probe, in the measurement volumes of coordinate measuring apparatus, be furnished with the locating part/stop part of aster form.Probe is guided between the astral wedge angle by the drive unit of coordinate measuring apparatus, until being clamped at the there.Then, the probe of coordinate measuring apparatus moves in measurement volumes, changes the locus of probe with respect to probe thus.In rotating-swivel mechanism, be furnished with by spring-loading locking structure, the locking of this lockable mechanism act on probe when clamped owing to the motion of probe receives overvoltage.
By the known another kind of coordinate measuring apparatus of DE 28 04 398 A1, wherein,, probe can change the locus of probe when moving by means of locating part with respect to probe.
Yet this in practice passive rotating-swivel mechanism does not but get the nod.One big defective of this mechanism is to regulate the required locating part of orientation of probes.This locating part must be arranged in the available measurement volumes, the remarkable so actual available measurement volumes of measuring object that reduced.
Yet what obtain multiple application in practice is to have initiatively/probe of active rotating-swivel mechanism, and this rotating-swivel mechanism is used to change the orientation of probe with respect to probe.This rotating-swivel mechanism has built-in drive unit, can change the orientation of probe with respect to probe by means of this drive unit.The example of rotating-swivel mechanism is initiatively disclosed in EP 1 126 237 A2, US 5 189 806 or DE 37 11 644 A1.Yet; The shortcoming of the rotating-swivel mechanism of this active is; The probe sensor system---promptly can be used for confirming the sensing system of probe with respect to the skew of probe---between probe and pivot center and axis of oscillation (from the view of probe, before sensing system is arranged in drive unit).Therefore, the spacing between probe tip and corresponding rotating shaft line and the axis of oscillation is relatively large.So, on measuring object, need bigger stroke.In addition, less at the Maximum total mass of initiatively rotating-swivel mechanism middle probe or probe combinations, reason is because the space is former thereby in the probe sensor system, do not settle balanced controls.
DE 44 24 225 A1 disclose a kind of probe with central probe sensor system and ergometry generator (Messkraftgenerator), and this ergometry generator has been realized the definite precompile of probe on three vertical space directions.In many coordinate measuring apparatuses, use such probe, but rotating-swivel mechanism is not set for probe or used probe combinations.
Summary of the invention
Under this background, the objective of the invention is to propose a kind of coordinate measuring apparatus of aforementioned type, this coordinate measuring apparatus can very flexibly, rapidly but still accurately be measured the measuring object with a plurality of different measuring points.Wherein should effectively utilize maximum available measurement volumes as far as possible.
A kind of coordinate measuring apparatus of aforementioned type is proposed according to an aspect of the present invention; In this coordinate measuring apparatus; Passive rotating-swivel mechanism has band and drives input side and the gearing that drives outgoing side; Wherein said driving outgoing side and said probe link to regulate said probe with respect to said probe, and wherein said driving input side has at least one input part is used to regulate said probe with introducing external torque.
A kind of rotating-swivel mechanism is proposed according to a further aspect in the invention; Said rotating-swivel mechanism has and is used for the more alias that removable loose ground is connected to probe; Wherein said rotating-swivel mechanism has receptacle and the band driving input side and the gearing that drives outgoing side that is used to admit probe; Wherein said driving outgoing side connects with said receptacle to regulate said probe with respect to said probe, and wherein said driving input side has at least one input part is used to regulate said probe with introducing external torque.
This novel coordinate measuring apparatus has combined to have the advantage and the advantage that can provide with respect to the probe of probe swing of the probe of central probe sensor system.Yet different with known before this suggestion, this novel coordinate measuring apparatus need not be used to support or clamp probe to regulate the locating part of probe with respect to probe.But this passive rotating-swivel mechanism has the gearing of the outer input part of band, and this input part has been realized directly to input torque of this rotating-swivel mechanism own or driving moment.For example, driving moment can produce by means of Vidacare corp, yet this drive unit is arranged in the outside with rotating-swivel mechanism initiatively differently, and preferred arrangements is leaned on the position of central authorities coordinate measuring apparatus as far as possible.For example, the axle of outside Vidacare corp can be bonded in the corresponding axle receptacle of rotating-swivel mechanism, on the driving input side of gearing, to introduce the driving moment that is used to regulate probe.
And a kind of with the preferred implementation that further describes by means of detailed embodiment hereinafter in; This novel coordinate measuring apparatus utilizes the existing adjusting of coordinate measuring apparatus drive unit/topworks/servo-drive, and that is to say does not need other gearing in this preferred implementation.
This novel coordinate measuring apparatus irrespectively has the following advantages with actual embodiment: measurement volumes can be used to admit measuring object basically fully.In addition, can on the middle position that is positioned at measurement volumes of probe, external drive moment be introduced rotating-swivel mechanism, thereby only need very little stroke to regulate the spatial orientation of probe.Observe the central probe sensor system be arranged in after the rotation-oscillation axis from probe and can have a lot of design of rotation-oscillation facet joint complex, because available structure space is very little to the influence of the accessibility of measuring object than active.Very advantageously be to use the probe with one or more ergometry generators, this ergometry generator has been realized the precompile of probe on the one hand, has realized balance on the other hand.Based on central probe sensor system, can also be built-in simply relatively or use other balanced controls in addition.
On the other hand, this novel coordinate measuring apparatus provides the whole advantages that drawn with respect to the variable adjustment ability of popping one's head in by probe.The complicated measuring object that especially can have different measuring point by means of seldom probe and/or the incompatible measurement of probe groups.Owing to can reduce the number of times of required before this replacing probe, this novel coordinate measuring apparatus can very rapidly be carried out complicated measuring task.Probe sensor system of central authorities has also realized point-device measurement.
Realized above-mentioned purpose thus fully.
In a preferred design; Rotating-swivel mechanism has at least one lockable mechanism; This lockable mechanism has off-position and lock position; Wherein lockable mechanism discharges probe so that probe can be conditioned through gearing in the off-position, wherein lockable mechanism anti-locking probe rotationally in the lock position.
As a kind of alternative scheme, probe for example also can be maintained in its position through friction, and said friction is overcome by the driving moment of introducing from the outside.Different therewith, use lockable mechanism in the lock position, to realize big confining force to probe with off-position and lock position.This big confining force has been realized higher measuring accuracy and has stoped for example when the contact measurement object, regulating probe location unintentionally.
In another design proposal, rotating-swivel mechanism has first pivot center and second pivot center at least, and wherein first pivot center extends in being parallel to the plane of probe, and wherein second pivot center extends transverse to probe.First pivot center preferably is perpendicular to one another with second pivot center.
In this design proposal, this rotating-swivel mechanism has been realized probe is adjusted to a plurality of positions in the segment neatly.As a kind of alternative scheme, also can realize the present invention with the mechanism that only has a probe motion axis, wherein still be the mechanism of this simplification use a technical term " rotating-swivel mechanism " at this for brevity.Bigger dirigibility based on two pivot centers has realized the measurement faster, that changeability is bigger.
In another design proposal, lockable mechanism has first lock piece and second lock piece, and wherein first lock piece is about the first pivot center locking probe, and wherein second lock piece is about the second pivot center locking probe.
In this design proposal, can on purpose discharge probe with respect to first pivot center or second pivot center.This design proposal has especially realized regulating probe around pivot center wherein, thereby and another pivot center is remained on probe in the one stable position with respect to second pivot center by locking.This design proposal has realized that very high measuring accuracy is regulated and then realized to probe very accurately.
In another design proposal, gearing is designed for around first pivot center or second pivot center and regulates probe.
In this design proposal, be that the parts of gearing are used for around the adjusting of first pivot center with around the adjusting of second pivot center simultaneously at least.Therefore, this gearing is a kind of gearing that has a plurality of optional driving outgoing sides where necessary.As a kind of alternative scheme, can be every pivot center related one oneself, independent gearing.Different with this alternative scheme, this preferred design proposal has realized lightweight, and this point is favourable to available probe length and probe configuration.First and second lock pieces of this design proposal with the independent removable pine that is respectively applied for first and second pivot centers are combined, and are particularly advantageous.This combination has realized the structure of the very simple and lightweight of novel rotating-swivel mechanism.Can realize gearing with parts seldom based on independent lock piece.
In another design proposal, rotating-swivel mechanism has at least one actuator, and this actuator design is used to make said at least one lockable mechanism to be transformed into the off-position from the lock position.
In this design proposal, can be by means of actuator release probe on purpose, thus set new probe location.Actuator preferably is built in the rotating-swivel mechanism, thereby need not make amendment to probe.
In another design proposal, rotating-swivel mechanism has another input part with from externally actuated said actuator.
This design proposal has realized in old-fashioned coordinate measuring apparatus, installing additional simply novel rotating-swivel mechanism.
In another design proposal, rotating-swivel mechanism has driving wheel, especially has the gear of outer toothed portion, and this driving wheel forms another input part.
By means of as described in the preferred embodiment, driving wheel---as the gear with outer toothed portion---has been realized as following: produce and introduce very simple and inexpensively driving moment by means of this adjusting drive unit that just exists in coordinate measuring apparatus.In principle, can use friction gearing to replace gear.
In another design proposal; Actuator has at least three actuated positions; Wherein first actuated position is designed to make lockable mechanism about all pivot center locking probes, and wherein second actuated position and the 3rd actuated position are designed to make lockable mechanism to discharge probe about a pivot center respectively.
This design proposal allows to realize said novel rotating-swivel mechanism that this rotating-swivel mechanism has all advantages of previous designs scheme especially simple and compactly.
In another design proposal, gearing has second driving wheel of the input part that is formed for external drive moment, especially has second gear of outer toothed portion.
As stated, the gear that has outer toothed portion has been realized producing outside driving moment by means of this adjusting drive unit that just exists in coordinate measuring apparatus very simplely, easy and inexpensive.But also can use friction gearing at this in principle.Two design proposals can be implemented very simple and inexpensively.
In another design proposal, rotating-swivel mechanism has at least one and the anti-eccentric structure (Excenter) that is connected rotationally of second driving wheel.In another design proposal, on matrix, arrange another eccentric structure, this eccentric structure can be with probe around first pivot axis.
This eccentric structure has realized very simply, accurately confirming each probe location with respect to probe.Advantageously can use the probe sensor system for this reason, wherein pop one's head in the known measurement point (reference measure point) of eccentric structure contact.Use an eccentric structure to realize confirming simply probe location respectively with respect to each pivot center.
In another design proposal, coordinate measuring apparatus comprise one have longitudinal extension, the linear locating part of tooth bar form especially, wherein probe can move along longitudinal extension with respect to linear locating part.
In order on rotating-swivel mechanism, to produce external drive moment by means of the existing adjusting drive unit of coordinate measuring apparatus, this design proposal is a kind of very simple, inexpensive feasible program.Advantageously, linear locating part is arranged in the middle section of coordinate measuring apparatus.
In another design proposal, framed structure have one be furnished with tooth bar crossbeam, wherein probe can move with respect to crossbeam.
In the coordinate measuring apparatus of door shape or bridge shape structure, linear locating part advantageously is arranged on the crossbeam of portal structures or bridge shape structure, and this has realized the short especially stroke that is used to regulate probe location.In addition, the measurement volumes of this coordinate measuring apparatus is used to admit measuring object fully.
In another design proposal, probe has at least one ergometry generator, and this ergometry generator can cause the precompile of probe.
This design proposal is favourable, is associated because ergometry factor capable of using (Messkraftfaktor) is with rotating-swivel mechanism and external drive moment source---like above-mentioned tooth bar and/or outside Vidacare corp---.
In another design proposal, the removable loose ground of rotating-swivel mechanism is arranged on the probe.
This design proposal has realized: on probe, replace traditional probe or probe combinations with rotating-swivel mechanism.In addition, in this design proposal, realized reequiping existing coordinate measuring apparatus with simple, inexpensive mode.
Obviously, without departing from the scope of the invention, above-mentioned characteristic and the characteristic that will be described below can not only be with the various Combination application that provide, and can be with other Combination application or independent utility.
Description of drawings
Embodiments of the invention shown in the drawings, and below it is described further.In the accompanying drawings:
Fig. 1 illustrates coordinate measuring apparatus according to an embodiment of the invention;
Fig. 2 illustrates the probe with probe sensor system and ergometry generator with reduced form;
Fig. 3 illustrates the side sectional view of preferred embodiment of the rotating-swivel mechanism of the coordinate measuring apparatus that is used for Fig. 1;
Fig. 4 to 8 illustrates the rotating-swivel mechanism of Fig. 3 with the different working position.
Embodiment
Fig. 1 illustrates the embodiment of novel coordinate measuring apparatus, and this coordinate measuring apparatus integral body is with label 10 marks.This coordinate measuring apparatus 10 has base 12 at this, on this base, is furnished with a gate 14 with the mode that can move along the longitudinal direction.Gate 14 is commonly referred to the Y axle with respect to the direction of motion of base 12.On the entablature of gate 14, be furnished with the balladeur train/slide block 16 that can move in a lateral direction.This horizontal direction is commonly referred to the X axle.Balladeur train 16 is supported with sleeve 18, and this sleeve 18 can be along the Z direction, promptly perpendicular to moving on the direction of base 12.Label 20,22,24 expressions can be used for the measurement mechanism of the position of definite gate 14, balladeur train 16 and sleeve 18.Measurement mechanism 20,22,24 is glass scale/scale normally, and it can be read by means of right sensors.
On sleeve 18 bottom free ends, be furnished with the probe 26 of band probe 28.Probe 28 is in the spherical contact/measurer contact that has the measurement point that is used on the contact measurement object 30 on the free end of bottom.By means of measurement mechanism 20,22,24 can confirm to pop one's head in 26 when the contact measurement point position in measurement volumes.Subsequently, can confirm the volume coordinate of the measurement point that quilt is contacted based on said position.
Represent an analysis controlling unit with label 32.This analysis controlling unit 32 is used for the motor driven of moving of pop one's head in 26 edges three coordinate axis X, Y and Z is controlled on the one hand.On the other hand, this analysis controlling unit 32 reads measured value from measurement mechanism 20,22,24, and confirms the current volume coordinate of measurement point based on said measured value and based on the skew of probe 28, and confirms other geometric parameter of measuring object 30 where necessary.With label 34 expressions one control stand, this control stand can be set alternatively with manual mobile probe 26.
According to one embodiment of present invention, tooth bar 36 is fixed on the crossbeam of gate 14.Tooth bar 36 is arranged as probe 26 can be moved in the zone of tooth bar 36 by means of sleeve part 18, as hereinafter further describing in more detail by Fig. 3 to 8.For example can arrange also that at this rubbing surface replaces tooth bar, friction pulley can roll on this rubbing surface.In addition, can arrange herein that in other embodiments a Vidacare corp is used to regulate the external drive moment of probe 28 with generation.In addition, tooth bar 36 or Vidacare corp (not shown at this) also can be arranged in other position in the measurement volumes of coordinate measuring apparatus 10, for example are arranged in that one of door pillar is gone up and/or in the unshowned for simplicity probe storage portion (Taststiftmagazin).
By means of the synoptic diagram of simplifying, in the basic working modes of probe 26 shown in Fig. 2.Probe 26 has through two sheet springs, 42,44 interconnective fixed part 38 and movable members 40.Sheet spring 42,44 is formed an elasticity parallelogram, and this elasticity parallelogram makes the parts 40 can to-and-fro movement on the direction shown in the arrow 46.Therefore, probe 28 can be from its rest position offset distance D.Label 28 ' the schematically illustrated probe 28 that is positioned at deviation post.
On fixed part 38 and movable member 40, be furnished with arm 48,50 respectively.Said arm 48,50 is parallel to sheet spring 42,44 and parallel.Between arm 48 and 50, be furnished with a sensor 52 (at rule this illustrate 54) and ergometry generator 56.This sensor 52 can be movable coil/movable wire-core coil, Hall element, piezoresistance sensor or other sensor, can confirm that by means of these sensors probe 28 is spatially with respect to the skew of fixed part 38.Ergometry generator 56 for example can be the movable coil that can two arms 48,50 furthered each other or push open each other.
In the reduced graph of Fig. 2, probe 26 has only been realized the skew of probe on direction shown in the arrow 46.Yet, well known to a person skilled in the art to be that this probe can be implemented in the respective offsets on two other vertical direction in space usually.In aforesaid document DE 44 24 225 A1, described the embodiment of this probe, the disclosure that is incorporated herein the document as a reference.Yet; The present invention is not limited to this concrete probe, implements but can utilize other measuring sonde or switch probe/switch probe (schaltenden
).
Well known to a person skilled in the art to be that the probe of the type that the utmost point illustrates briefly in Fig. 2 has the receptacle of stationary probe 28 replaceably usually.
In a preferred embodiment, rotating-swivel mechanism but not probe 28 with probe 28 are inserted in the probe receptacle of probe 26, thereby can select rotating-swivel mechanism or conventional probe stationary on probe 26.A preferred embodiment of rotating-swivel mechanism is described according to Fig. 3 to 8 hereinafter in more detail.
Preferred rotating-swivel mechanism is used label 60 marks on the whole in Fig. 3 to 8.This rotating-swivel mechanism 60 end above that has dish 62, and this dish is complementary with the probe receptacle of probe 26.What relate at this is conventional removable dish, as normally used in the removable probe.Removable dish 62 is fixed on the matrix 64.Matrix 64 forms the fixed part of rotating-swivel mechanism 60.The free end upper support has with first gear 66 of outer toothed portion 67 radially this matrix 64 in the bottom.Gear 66 can rotate around the vertical axis 68 of rotating-swivel mechanism 60 on matrix 64.
At this, matrix 64 has and is positioned at inner cavity, fixing one rod member 70 that extends straight down on the bottom of this cavity.Rod member 70 has dish 72 on the free end of its underpart, coiling 72 upper supports at this has a volute spring 74.
With rod member 70 pipe fitting 76 is set with one heart, this pipe fitting can vertically move (referring to Fig. 4) on rod member 70.Pipe fitting 76 has the cone 78 that is fixedly connected with pipe fitting 76 on the bottom, and on the upper end, has the bicone 80 that is fixedly connected with pipe fitting 76.
With the axis body of label 82 expressions one with pipe fitting 76 concentric settings.This axis body 82 is pressed against on the bottom of matrix 64 by spring 74.Between the end face that faces one another of matrix 64 and axis body 82, be furnished with ball tooth portion 84.This ball tooth portion 84 forms first locking structure, through this first locking structure axis body 82 is bearing on the matrix 64 with anti-mode of rotating.This ball tooth portion 84 comprises a plurality of first and second spheroids, and wherein first spheroid is arranged in the ring groove on the bottom free end of matrix 64, and second spheroid is arranged in the corresponding annular groove on the upper end of axis body 82.Because the spring force of spring 74, these spheroids are locked mutually.Also can use ball-roller tooth portion, cut end face tooth (Hirth-Verzahnung) or other suitable lockable mechanism replaces ball-ball tooth portion.
In addition, on tubular shaft 90, arrange another axis body 98, this axis body resists with gear 92 and is connected rotationally.This axis body 98 is locked on the side of the first axle body 82 by anti-through another ball tooth portion 100 rotationally.As long as by means of another spring 102 axis body 98 is pressed against on the first axle body 82, ball tooth portion 100 just forms second locking structure.Here also can use ball-roller tooth portion or cut the end face tooth and replace ball-ball tooth portion.
The outer toothed portion 94 of gear 92 is not on the whole periphery of gear 92, to extend, but only on about 270 °, extends.On the circular arc of the no outer toothed portion 94 of gear 92, probe 28 is fixed in the probe bearing with the mode of removable pine.
In the upper end of pipe fitting 76, bicone 80 and two other stroke lever 106,108 (Fig. 4) acting in conjunction in a similar fashion.Stroke lever 106,108 can receive spring load, so that the rest position confirmed to be set.Matrix 64 has two radial holes on the free end of its underpart, in said radial hole, arrange one of stroke lever 106,108 respectively movably.The stroke lever 106,108 and first gear 66 are arranged in a plane.Stroke lever 106 is bearing on the last conical surface of bicone 80, and stroke lever 108 is resisted against on the following conical surface of bicone 80.When (Fig. 4) pushing stroke lever 106 on the direction shown in the arrow 110, stroke lever 106 utilizes the elastic force of bicone 80, antagonistic spring 74 to push pipe fitting 76 downwards.Because cone 78 is bearing on the axis body 82 in the lower end of pipe fitting 76, so this motion of pipe fitting 86 pushing downwards comprises the whole axis body 82 of second gear 86 and the 3rd gear 92.This motion is represented through arrow 112 in Fig. 4.Discharge the locking of the first ball tooth portion 84 through the motion of axis body 82 on direction shown in the arrow 112.In this working position, axis body 82 can rotate by upright axis line 68 together with the gear 92 that is locked on this axis body 82.
On the contrary, if when (Fig. 6) radially inwardly pushes stroke lever 108 on the direction shown in the arrow 114, the trip bar 108 utilizes bicone 80 upwards to promote pipe fitting 76.Through this motion cone 78 is upwards promoted, cone 78 radially outwards pushes stroke lever 104, thereby discharges the second ball tooth portion 100.In this working position (Fig. 6), gear 92 can rotate with respect to axis body 82.
For actuation stroke bar 106,108, gear 66 has the eccentric recess 116 that is positioned at radially inner side.In working position shown in Figure 3, recess 116 is arranged to make two stroke levers 106,108 on the direction of bicone 80, not move.Therefore, pipe fitting 76 all is in the rest position together with cone 78 and bicone 80.Two ball tooth portions 84,100 all are engaged.During probe 28 is fixed on definite position and is orientated with respect to probe (not shown at this).
In order to regulate probe 28, at first the probe 26 with coordinate measuring apparatus 10 moves in the zone of tooth bar 36 now.Then, make gear 66 and tooth bar 36 engagements (Fig. 4) by means of ergometry generator 56.At this moment through being parallel to tooth bar 36 (directions X) mobile probe 26, produce the driving moment that acts on gear 66.Respectively according to probe 26 moving directions with respect to tooth bar 36, gear 66 clockwise or rotate counterclockwise.In working position shown in Figure 4, eccentric recess 116 " is opened " in the zone of stroke lever 108 owing to rotational motion.On the contrary, recess 116 " is closed " in the zone of stroke lever 106, and stroke lever 106 is inwardly pushed on the direction shown in the arrow 110.Therefore, pipe fitting 76 is urged downwardly, and overcomes the elastic force drive axis body 82 of spring 74.At this moment discharged the first ball tooth portion 84.
As shown in Figure 5, mobile probe 26 on the Z direction subsequently is so that second gear 86 and tooth bar 36 engagements.Through probe 26 is moved along the X axle and then along tooth bar 36 again, axis body 82 upright axis lines 68 are rotated, this illustrates with arrow 118 in Fig. 5.In case probe 28 reaches the expection turned position of upright axis line 68,26 feed motions with respect to tooth bar 36 just stop to pop one's head in.By means of the engagement of ergometry generator 56 gears 86 disengagings with tooth bar 36.Then, sleeve 18 and probe 26 are moved together on the Z direction, make first gear 66 and tooth bar 36 engagements (Fig. 4) once more.Through making probe 26 along tooth bar 36 counter motions pipe fitting 76 discharged once more, spring 74 pushes the ball tooth portion on the matrix 64 with axis body 82.At this moment, the turned position of the new settings of probe 28 is fixed.
In the adjusting that centers on 91 pairs of probes 28 of second pivot center shown in Fig. 6 and 7.Here, likewise at first make gear 66 and tooth bar 36 engagements.Through 26 the suitable feed motions of popping one's head in gear 66 is rotated, thereby make stroke lever 108 upwards push bicone 80 along tooth bar 36.Radially outwards push the stroke lever 104 (arrow 120) on the second axle body 98 thus.The second ball tooth portion 100 is released.Then, on the Z direction, promote probe 26, so that second gear 86 and tooth bar 36 engagements.Through the 26 generation driving moments of moving along tooth bar 36 of popping one's head in, this driving moment is passed to gear 92 through tooth portion 94,96.Therefore, probe 28 rotates around axis of pitch 91, and this illustrates through double-head arrow 122 in Fig. 7.
In a preferred embodiment, the cone angle size of the length of stroke lever 104 and cone 78 is configured to, and ball tooth portion 100 is not exclusively broken away from, but keep a least residue mesh volume.Produce a braking moment in this way, this braking moment prevent gear 86 when tooth bar 36 breaks away from probe 28 because action of gravity and backward rotation.Those of skill in the art will recognize that in order to produce corresponding braking moment, also is to adopt other different therewith embodiments, is resisted against the friction piece on the gear 92 when for example breaking away from by means of electromagnet and/or in ball tooth portion 100.
Make stroke lever 108 get back to its rest position once more through first gear 66 that resets, ball tooth portion 100 is locking probe 28 once more.
Fig. 8 illustrates a kind of flexible program, utilizes this flexible program can confirm probe 28 each position with respect to probe 26.At this, two eccentric discs 124,126 are used for said position and confirm.First eccentric disc 124 and axis body 82 are anti-to be connected rotationally, thereby and is arranged as with axis body 82 is concentric and can on the periphery of eccentric disc 124, confirms the angle position of axis body 82 about vertical axis 68.Second eccentric disc 126 resists with second gear 86 and is connected rotationally, and is arranged to and can confirms the angle position of gears 86 about vertical axis 68 by means of this eccentric disc 126.Now in order to confirm the locus of probe 28, at first will pop one's head in 26 moves on on the tooth bar 36 (or other given reference measure point), so that eccentric disc 126 contacts tooth bars 36.Can confirm the angle position of gear 86 then by means of probe sensor system 52.Then mobile probe 26 makes eccentric disc 124 contact tooth bars 36 (or other given reference measure point).Confirm the angle position of axis body 82 then by means of probe sensor system 52.Because in this embodiment, the angle position of gear 86 represent the rotation sum of upright axis line 68 and axis of pitch 91, so can confirm the angle position of probe 28 about axis of pitch 91 by the difference of the angle position of two eccentric discs 124,126.As replacement scheme, also can confirm at the angle position of this probe 28 through alternate manner, for example by means of in the zone that is arranged in gear 92 with the zone of axis body 82 in incremental encoder.
The another kind of improvement project that embodiment is shown is, the driving moment that is used to regulate probe 28 is not to utilize tooth bar 36 and the 26 corresponding feed motions along tooth bar 36 of popping one's head in produce.For example, can utilize motor directly gear 66,86 to be applied driving moment.This drive motor (not shown at this) preferably is arranged in the zone of crossbeam of gate 14 equally.
In all embodiment described so far, gear 86 forms a gearing, can introduce the driving moment that is used to regulate probe 28 at the driving input side (through outer toothed portion 94 inputs) of this gearing.According to which the bar pivot center that will adjust probe 28, gear 86 and gear 92 actings in conjunction are with to probe 28 transmission of drive force squares.Ball tooth portion 84,100 forms a lockable mechanism, utilizes this mechanism to discharge or anti-locking probe 28 rotationally.Gear 66 forms an actuator with stroke lever 104-108, pipe fitting 76 and cone 78,80, utilizes this actuator optionally lockable mechanism to be transformed into the off-position from the lock position.Whole rotating-swivel mechanism 60 just is enough to application under the situation of no internal transmission, so rotating-swivel mechanism 60 can constitute to utmost point lightweight and then can be used as in the probe receptacle of whole insertion probe 26.Therefore passive pivot center 68,91 can utilize all advantages of central probe sensor system between probe 28 and central probe sensor system.Especially can under the situation of not changing novel rotating-swivel mechanism 60, use the probe of existing complicacy.Obviously, only need carry out corresponding analysis software adaptive to consider probe 28 each control position with respect to probe 26.Probe sensor system of central authorities influences available measurement volumes hardly with the preferred middle position that is used to introduce driving moment.In order to keep measurement volumes as much as possible, advantageously be arranged in tooth bar 36 (or other is used for producing the driving mechanism of driving moment) zone along the upper end position of Z axle of probe 26.
Claims (18)
1. coordinate measuring apparatus that is used for confirming the volume coordinate on the measuring object (30), said coordinate measuring apparatus has: the probe (26) that has probe sensor system (52); Be designed for the framed structure (14,16,18) that makes said probe (26) mobile with respect to said measuring object (30); Be used to contact the probe (28) of said measuring object (30); And passive rotating-swivel mechanism (60); Through said passive rotating-swivel mechanism said probe (28) is attached to said probe (26) with the mode that can spatially regulate; It is characterized in that; Said passive rotating-swivel mechanism (60) has band and drives input side and the gearing (86,92) that drives outgoing side; Wherein said driving outgoing side connects with said probe (28) to regulate said probe (28) with respect to said probe (26), and wherein said driving input side has the external drive moment that at least one first input part (88) is used to regulate said probe (28) with introducing, wherein
Said coordinate measuring apparatus comprises that one has the linear locating part (36) of longitudinal extension, and wherein said probe (26) can be mobile on said rotating-swivel mechanism, to produce the said external drive moment that is used to regulate said probe with respect to said linear locating part (36) along said longitudinal extension.
2. coordinate measuring apparatus according to claim 1; It is characterized in that; Said rotating-swivel mechanism (60) has at least one lockable mechanism (84,100); Said lockable mechanism (84,100) has off-position and lock position; Wherein said lockable mechanism (84,100) discharges said probe (28) so that said probe (28) can be conditioned via said gearing (86,92) in said off-position, wherein said lockable mechanism (84,100) is the anti-said probe of locking (28) rotationally in said lock position.
3. coordinate measuring apparatus according to claim 2; It is characterized in that; Said rotating-swivel mechanism (60) has first, second pivot center (68,91) at least; Wherein said first pivot center (68) extends in the plane that is parallel to said probe (28), and wherein said second pivot center (91) extends transverse to said probe (28).
4. coordinate measuring apparatus according to claim 3; It is characterized in that; Said lockable mechanism has first lock piece (84) and second lock piece (100); Wherein said first lock piece (84) is about the said probe of said first pivot center (68) locking (28), and wherein said second lock piece (100) is about the said probe of said second pivot center (91) locking (28).
5. coordinate measuring apparatus according to claim 3 is characterized in that, said gearing (86,92) be designed for around said first or said second pivot center (68,91) regulate said probe (28).
6. coordinate measuring apparatus according to claim 2; It is characterized in that; Said rotating-swivel mechanism (60) has at least one actuator (66,76,78,80,104,106,108), and said actuator design is used to make said at least one lockable mechanism (84,100) to be transformed into said off-position from said lock position.
7. coordinate measuring apparatus according to claim 6 is characterized in that, said rotating-swivel mechanism (60) has one second input part (67) to activate said actuator (66,76,78,80,104,106,108).
8. coordinate measuring apparatus according to claim 7 is characterized in that said coordinate measuring apparatus has first driving wheel, and said first driving wheel forms said second input part (67).
9. coordinate measuring apparatus according to claim 8 is characterized in that, said first driving wheel is the gear (66) with outer toothed portion (67).
10. according to a described coordinate measuring apparatus in the claim 6 to 9; It is characterized in that; Said actuator (66,76,78,80,104,106,108) has at least three actuated positions; Wherein first actuated position is designed to make said lockable mechanism (84,100) about the said probes of all pivot center lockings (28), and wherein second actuated position and the 3rd actuated position are designed to make said lockable mechanism (84,100) to discharge said probe (28) about a pivot center (68,91) respectively.
11. a described coordinate measuring apparatus according in the claim 1 to 7 is characterized in that, said gearing (86,92) has second driving wheel, and said second driving wheel forms said first input part (88).
12. coordinate measuring apparatus according to claim 11 is characterized in that, said second driving wheel is second gear (86) with outer toothed portion (88).
13. coordinate measuring apparatus according to claim 11 is characterized in that, said coordinate measuring apparatus has and the anti-eccentric structure (126) that is connected rotationally of said second driving wheel (86).
14. coordinate measuring apparatus according to claim 12 is characterized in that, said coordinate measuring apparatus has and the anti-eccentric structure (126) that is connected rotationally of said second driving wheel (86).
15. coordinate measuring apparatus according to claim 1 is characterized in that, said framed structure (14,16,18) has crossbeam, and said linear locating part (36) is arranged on the said crossbeam, and wherein said probe (26) can move with respect to said crossbeam.
16. a described coordinate measuring apparatus according in the claim 1 to 9 is characterized in that, said probe (26) has at least one ergometry generator (56), and said ergometry generator (56) can cause the precompile of said probe (28).
17. a described coordinate measuring apparatus according in the claim 1 to 9 is characterized in that, the removable loose ground of said rotating-swivel mechanism (60) is arranged on the said probe (26).
18. rotating-swivel mechanism that is used for according to a described coordinate measuring apparatus of claim 1 to 16; Said rotating-swivel mechanism has and is used for removable loose ground and is connected to the more alias (62) of probe (26) and the receptacle that is used to admit probe (28); It is characterized in that; Said rotating-swivel mechanism comprises that band drives input side and the gearing (86,92) that drives outgoing side; Wherein said driving outgoing side and said receptacle link to regulate said probe (28) with respect to said probe (26), and wherein said driving input side has at least one input part (88) is used to regulate said probe (28) with introducing external drive moment.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102007022326.0 | 2007-05-08 | ||
| DE102007022326.0A DE102007022326B4 (en) | 2007-05-08 | 2007-05-08 | Coordinate measuring device for determining spatial coordinates on a measurement object, and rotating/pivoting mechanism for such a coordinate measuring device |
| PCT/EP2008/003100 WO2008135144A1 (en) | 2007-05-08 | 2008-04-17 | Coordinate measurement device for determining spatial coordinates of a measurement object, and rotating-swivel mechanism for such a coordinate measurement device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101688766A CN101688766A (en) | 2010-03-31 |
| CN101688766B true CN101688766B (en) | 2012-10-31 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200880023638XA Expired - Fee Related CN101688766B (en) | 2007-05-08 | 2008-04-17 | Coordinate measurement device for determining spatial coordinates of a measurement object, and rotating-swivel mechanism for such a coordinate measurement device |
Country Status (5)
| Country | Link |
|---|---|
| CN (1) | CN101688766B (en) |
| BR (1) | BRPI0811437A2 (en) |
| DE (1) | DE102007022326B4 (en) |
| RU (1) | RU2451265C2 (en) |
| WO (1) | WO2008135144A1 (en) |
Families Citing this family (21)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102009049534A1 (en) | 2009-10-06 | 2011-04-07 | Carl Zeiss Industrielle Messtechnik Gmbh | Coordinate measuring machine with position change sensors |
| DE102010006505B4 (en) * | 2010-01-28 | 2013-09-19 | Carl Zeiss Industrielle Messtechnik Gmbh | Coordinate measuring machine with passive rotary-swivel mechanism |
| DE102010018493B4 (en) * | 2010-04-21 | 2012-12-06 | Carl Zeiss Industrielle Messtechnik Gmbh | Coordinate measuring device for determining spatial coordinates on a measurement object and probe for such a coordinate measuring machine |
| DE102010020654A1 (en) * | 2010-05-07 | 2011-11-10 | Carl Zeiss Industrielle Messtechnik Gmbh | Probe for a coordinate measuring machine for determining spatial coordinates on a measurement object |
| DE102010031976A1 (en) * | 2010-07-22 | 2012-01-26 | Carl Zeiss Industrielle Messtechnik Gmbh | Determination of the coupling of parts to a machine |
| EP2729768B1 (en) | 2011-07-08 | 2017-05-17 | Carl Zeiss Industrielle Messtechnik GmbH | Calibration and operation of rotating devices, in particular for rotating sensing heads and/or probes of coordinate measuring devices |
| CN102997800A (en) * | 2012-11-07 | 2013-03-27 | 无锡市迈日机器制造有限公司 | Gapless displacement transmission mechanism |
| DE102013105753B3 (en) | 2013-06-04 | 2014-10-02 | Carl Zeiss Industrielle Messtechnik Gmbh | Method for automatically picking up a sensor head and coordinate measuring machine |
| TWI551268B (en) * | 2013-11-22 | 2016-10-01 | 國立陽明大學 | Portable apparatus for quantifying joint accessory movement |
| US10267629B2 (en) | 2014-04-08 | 2019-04-23 | Nikon Metrology Nv | Measurement probe unit for metrology applications |
| DE112014006850B4 (en) | 2014-07-31 | 2023-06-15 | Carl Zeiss Industrielle Messtechnik Gmbh | Probe for a coordinate measuring machine |
| JP6649013B2 (en) | 2015-08-27 | 2020-02-19 | 株式会社ミツトヨ | Probe head rotation mechanism |
| CN107234524A (en) * | 2016-03-28 | 2017-10-10 | 沈阳海默数控机床有限公司 | A kind of vertical grinder for carrying out grinding for circular excircle of workpiece face to planing surface |
| TWI604913B (en) * | 2016-06-01 | 2017-11-11 | 致茂電子股份有限公司 | Swinging mechanism |
| DE102017114551B4 (en) | 2017-06-29 | 2021-12-23 | Carl Zeiss Industrielle Messtechnik Gmbh | Rotary swivel mechanism for a coordinate measuring machine |
| CN107869977B (en) * | 2017-11-23 | 2019-10-22 | 深圳力合精密装备科技有限公司 | A kind of clamping of coordinate measuring machine stylus and adjustment mechanism |
| DE102018115745A1 (en) | 2018-06-29 | 2020-01-02 | Carl Zeiss Industrielle Messtechnik Gmbh | Rotation-swivel mechanism for a coordinate measuring machine |
| CN109269379A (en) * | 2018-11-09 | 2019-01-25 | 重庆庆兰实业有限公司 | A kind of knuckle cubing |
| CN109945816B (en) * | 2019-04-25 | 2024-04-30 | 贵州大学 | Intelligent detection device for detecting crop planting spacing of harvester |
| CN110285759B (en) * | 2019-08-01 | 2021-01-12 | 台州市肯创机械设备有限公司 | High-sensitivity three-coordinate measuring machine detection mechanism |
| CN117169598B (en) * | 2023-11-03 | 2024-02-02 | 无锡卓海科技股份有限公司 | Resistance measuring instrument |
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- 2008-04-17 CN CN200880023638XA patent/CN101688766B/en not_active Expired - Fee Related
- 2008-04-17 BR BRPI0811437-4A2A patent/BRPI0811437A2/en not_active IP Right Cessation
- 2008-04-17 WO PCT/EP2008/003100 patent/WO2008135144A1/en active Application Filing
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| GB2037436A (en) * | 1978-10-02 | 1980-07-09 | Haltronic Systems Ltd | Swivel probe |
| GB2179744A (en) * | 1983-06-14 | 1987-03-11 | Gte Valeron Corp | Probe with stylus adjustment |
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Also Published As
| Publication number | Publication date |
|---|---|
| DE102007022326B4 (en) | 2022-07-07 |
| RU2009145166A (en) | 2011-06-20 |
| DE102007022326A1 (en) | 2008-11-13 |
| RU2451265C2 (en) | 2012-05-20 |
| WO2008135144A1 (en) | 2008-11-13 |
| CN101688766A (en) | 2010-03-31 |
| BRPI0811437A2 (en) | 2014-12-16 |
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