CN110370085A - A kind of modified ball bar device based on laser ranging - Google Patents
A kind of modified ball bar device based on laser ranging Download PDFInfo
- Publication number
- CN110370085A CN110370085A CN201910670203.4A CN201910670203A CN110370085A CN 110370085 A CN110370085 A CN 110370085A CN 201910670203 A CN201910670203 A CN 201910670203A CN 110370085 A CN110370085 A CN 110370085A
- Authority
- CN
- China
- Prior art keywords
- laser
- ball
- laser ranging
- reflecting part
- reflection
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 230000007246 mechanism Effects 0.000 claims abstract description 96
- 238000006073 displacement reaction Methods 0.000 claims description 26
- 230000033001 locomotion Effects 0.000 claims description 14
- 230000001681 protective effect Effects 0.000 claims description 13
- 230000008676 import Effects 0.000 claims description 11
- 238000000034 method Methods 0.000 claims description 6
- 239000007787 solid Substances 0.000 claims description 2
- 238000005259 measurement Methods 0.000 abstract description 32
- 238000004891 communication Methods 0.000 description 5
- 230000003287 optical effect Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 238000007405 data analysis Methods 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- FMYKJLXRRQTBOR-BZSNNMDCSA-N acetylleucyl-leucyl-norleucinal Chemical compound CCCC[C@@H](C=O)NC(=O)[C@H](CC(C)C)NC(=O)[C@H](CC(C)C)NC(C)=O FMYKJLXRRQTBOR-BZSNNMDCSA-N 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000003745 diagnosis Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q17/00—Arrangements for observing, indicating or measuring on machine tools
- B23Q17/24—Arrangements for observing, indicating or measuring on machine tools using optics or electromagnetic waves
- B23Q17/2452—Arrangements for observing, indicating or measuring on machine tools using optics or electromagnetic waves for measuring features or for detecting a condition of machine parts, tools or workpieces
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/02—Measuring arrangements characterised by the use of optical techniques for measuring length, width or thickness
Landscapes
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Physics & Mathematics (AREA)
- Length Measuring Devices By Optical Means (AREA)
Abstract
A kind of modified ball bar device based on laser ranging, it further include magnetostatic ball, laser ranging mechanism, pars contractilis, reflecting part, 3 measuring mechanisms and the adjustment portion for adjusting magnetostatic ball Yu 3 measuring mechanism spacing, the magnetostatic ball side is connect with the adjustment portion, and the other side is adsorbed on the magnetic force bowl seat；The adjustment portion is sequentially connected away from side, laser ranging mechanism, pars contractilis, reflecting part and 3 measuring mechanisms of the magnetostatic ball；3 measuring mechanisms are sheathed on outside the high-precise ball of tested lathe, and 3 measuring mechanisms do moving interpolation with high-precise ball；Described reflecting part one end is embedded at one end that the pars contractilis deviates from the laser ranging mechanism；3 measuring mechanisms can drive the reflecting part to do moving interpolation with the high-precise ball.The present invention is able to carry out the precision measure of full extent of space, and the accuracy of measurement accuracy is high, promotes the accuracy of measurement of Precision of NC Machine Tool.
Description
Technical field
The present invention relates to NC Machine Error detection fields, refer in particular to a kind of modified ball bar based on laser ranging
Device.
Background technique
Lathe is the machine-tool in machinery manufacturing industry, and precision directly affects manufacturing level.Related tables of data
Bright, 80% or more lathe its performance must can be only achieved technical indicator after field adjustable during installation, and lathe makes
After a period of time, it is also necessary to be inspected periodically to guarantee the normal working condition of lathe.Ball bar is exactly that one kind can be fast
Speed, the instrument for conveniently and economically detecting Precision of NC Machine Tool, ball bar are nineteen eighty-twos by U.S.'s Lao Lunsi Lawrence Livermore country
The James B.Bryan in laboratory (LLNL) is proposed, is widely used in the evaluation and diagnosis of machine tool accuracy, by
ISO230 and ASMEB5.54 etc. is adopted as the standard tool of detection lathe circular motion and accuracy test.And in some enterprises later
In-depth study has been carried out to ball bar with scholar, has had developed several different types of ball bars.In order to meet different measurements
The demand of spatial dimension, these ball bars would generally be equipped with the different bar of a few root long degree simultaneously, but what is extended is limited in scope, this
Outside, the Circular test radius in existing ball bar measurement space is basically unchanged, and can not be covered all in lathe work stroke range
Area of space.
Summary of the invention
The technical problems to be solved by the present invention are: a kind of modified ball bar device based on laser ranging is provided, gram
The defect of lathe work stroke range can not be completely covered in ball bar to clothes in the prior art, and promotes the measurement accuracy of ball bar.
In order to solve the above-mentioned technical problem, the technical solution adopted by the present invention are as follows:
A kind of modified ball bar device based on laser ranging, including magnetic force bowl seat and workbench, the magnetic force bowl seat
Be fixed on the workbench, further include magnetostatic ball, laser ranging mechanism, pars contractilis, reflecting part, 3 measuring mechanisms and
For adjusting the adjustment portion of magnetostatic ball Yu 3 measuring mechanism spacing, the magnetostatic ball side is connect with the adjustment portion,
The other side is adsorbed on the magnetic force bowl seat；
The adjustment portion deviates from side, laser ranging mechanism, pars contractilis, reflecting part and 3 measuring machines of the magnetostatic ball
Structure is sequentially connected；
3 measuring mechanisms are for being sheathed on outside the high-precise ball of tested lathe；
Described reflecting part one end is embedded at one end that the pars contractilis deviates from the laser ranging mechanism, will come from described
The light of laser ranging mechanism goes back to the laser ranging mechanism in pars contractilis internal reflection；
3 measuring mechanisms drive the reflecting part to do moving interpolation with the movement of the high-precise ball, so that described
Change in displacement of the reflecting part on motion profile feeds back to the laser ranging mechanism.
The beneficial effects of the present invention are: the present invention, and adjustment portion is arranged, for adjust before measuring 3 ranging mechanism with
Spacing between magnetostatic ball, and regular length after a measurement, pars contractilis will carry out adaptability according to the adjustment length of adjustment portion and stretch,
Ball bar can be made to meet the needs of different measurement spatial dimensions；Laser ranging mechanism and reflecting part are set, laser reflection is utilized
Principle, carry out laser ranging, to measure the radial variations value of different location on circumference, and then the fortune of tested lathe can be obtained
Row precision；3 measuring mechanisms, which are arranged, can measure the displacement of high-precise ball, and further promote the accuracy of measurement；The present invention
A kind of ball bar that lathe work stroke range can be completely covered is provided, measurement accuracy is high.
Detailed description of the invention
Fig. 1 is the structural diagram of the present invention；
Fig. 2 is the laser optical path figure in the present invention；
Fig. 3 is the structural schematic diagram of 3 measuring mechanisms in the present invention；
Fig. 4 is the running track figure of ball bar in the present invention.
Label declaration:
1, magnetic force bowl seat；
3, magnetostatic ball；
4, laser ranging mechanism；41, toroidal shell；42, spectroscope；411, reflection cavity；412, laser pick-off chamber；4111,
Laser import；4112, laser exit；
5, pars contractilis；
6, reflecting part；61, protective shell；62, reflecting mirror；
7,3 measuring mechanisms；71, ring set；72, displacement sensor；
8, adjustment portion；81, extension bar；82, extension bar shell；
9, high-precise ball；
10, joint；101, bearing；102, axle bed；
Specific embodiment
To explain the technical content, the achieved purpose and the effect of the present invention in detail, below in conjunction with embodiment and cooperate attached
Figure is explained.
Please refer to Fig. 1-Fig. 4, a kind of modified ball bar device based on laser ranging, including magnetic force bowl seat 1 and work
Platform, magnetic force bowl seat 1 are fixed on workbench, further include magnetostatic ball 3, laser ranging mechanism 4, pars contractilis 5, reflecting part 6, three
Point measuring mechanism 7 and the adjustment portion 8 for adjusting magnetostatic ball and 3 measuring mechanism spacing, magnetostatic 3 side of ball and adjustment portion 8 connect
It connects, the other side is adsorbed on magnetic force bowl seat 1；
Adjustment portion 8 deviates from side, laser ranging mechanism 4, pars contractilis 5, reflecting part 6 and 3 measuring mechanisms 7 of magnetostatic ball 3
It is sequentially connected；
3 measuring mechanisms 7 are for being sheathed on outside the high-precise ball 9 of tested lathe；
6 one end of reflecting part is embedded at one end that pars contractilis 5 deviates from laser ranging mechanism 4, will come from laser ranging mechanism 4
Light 5 internal reflection of pars contractilis return laser ranging mechanism 4；
3 measuring mechanisms 7 drive reflecting part 6 to do moving interpolation with the movement of high-precise ball 9, so that reflecting part 6 is moving
Change in displacement on track feeds back to laser ranging mechanism 4.
The working principle of the invention is:
1,3 measuring mechanisms are sheathed on the high-precise ball of lathe, the length of adjustment portion are adjusted before ball bar operation,
And adjustment portion length is fixed, adaptability is adjusted the spacing of measuring mechanism and adjustment portion at 3 by pars contractilis；
2, operation makes high-precise ball do moving interpolation, and laser injects laser ranging mechanism, and passes through pars contractilis and reach reflection
Portion is reflexed in laser ranging mechanism by reflecting part, and the data measured are sent to computer by laser ranging mechanism, carries out data
Analysis, obtains the change in displacement value of high-precise ball, and then obtain the precision of high-precise ball.
As can be seen from the above description, the beneficial effects of the present invention are: adjustment portion is arranged in the present invention, for adjusting before measuring
Spacing between 3 ranging mechanism and magnetostatic ball, and regular length after a measurement, pars contractilis will be according to the adjustment lengths of adjustment portion
It is flexible to carry out adaptability, ball bar can be made to meet the needs of different measurement spatial dimensions；Laser ranging mechanism and reflection are set
Portion carries out laser ranging using the principle of laser reflection, to measure the radial variations value of different location on circumference, and then can
Obtain the running precision of tested lathe；3 measuring mechanisms, which are arranged, can measure the displacement of high-precise ball and further promote measurement
Accuracy.
Further, it is connected between reflecting part 6 and 3 measuring mechanisms 7 by a mobilizable joint 10.
Seen from the above description, turning joint is set between reflecting part and 3 measuring mechanisms, can increase reflecting part with
Flexibility between 3 measuring mechanisms.
Further, joint 10 includes bearing 101 and axle bed 102, reflecting part 6, bearing 101, axle bed 102 and 3 points of measurements
It is sequentially connected between mechanism 7, central axis seat 102 passes through 101 one end of bearing.
Seen from the above description, bearing and axle bed are set, and can make being capable of multi-angle between reflecting part and 3 measuring mechanisms
Rotation increases the flexibility between reflecting part and 3 measuring mechanisms.
Further, 3 measuring mechanisms 7 include ring set 71 and a plurality of displacement sensors 72, and ring set 71 can be located in
9 outside of high-precise ball, does moving interpolation with the movement with high-precise ball 9；
A plurality of displacement sensors 72 are evenly distributedly installed in the outside of ring set 71,71 lateral wall of ring set by joint 10 with
Reflecting part 6 connects.
Seen from the above description, uniformly distributed a plurality of displacement sensors on the outside of ring set are inserted when high-precise ball does circumference
When mending movement, it can analyze by the measurement data of displacement sensor and obtain the feeding rate of circular motion.
Further, laser ranging mechanism 4 includes toroidal shell 41, laser range finder, wireless transport module and spectroscope
42, reflection cavity 411 and laser pick-off chamber 412 are provided in toroidal shell 41, and 411 side wall of reflection cavity offers laser import
4111, reflection cavity 411 and the orthogonal side of laser import 4111 offer laser exit 4112；
Laser exit 4112 is connect with 5 one end of pars contractilis；
412 side of laser pick-off chamber of toroidal shell 41 is connect with adjustment portion 8；
The inclination of spectroscope 42 is installed in reflection cavity 411, will the light refraction from laser import to reflecting part 6；
Laser range finder is installed in laser pick-off chamber 412, and there are gap, laser with 411 bottom of reflection cavity for spectroscope 42
Laser range finder is injected across gap；
Wireless transport module is installed in laser pick-off chamber 412 and is electrically connected with laser range finder.
Seen from the above description, wireless transport module is used to laser measurement data being wirelessly transmitted to computer, to survey
Amount data are analyzed, and spectroscope is obliquely installed, and laser can be made to transmit towards both direction, and one of direction of transfer is to pass
It is handed to reflecting part.
Further, laser range finder includes timer and laser pickoff, laser pickoff face reflecting part 6, to connect
Receive the laser reflected by reflecting part 6；
Timer is electrically connected with laser pickoff, to calculate the time span of laser reflection process.
Seen from the above description, laser pickoff and timer electrical connection, when laser being made to inject laser pickoff, timer
Stop timing, obtains the time span of laser reflection process, can accurately obtain the time of laser reflection process.
Further, reflecting part 6 includes the protective shell 61 and reflecting mirror 62 that there is opening in side, 61 open side direction of protective shell
Laser range finder is simultaneously connect with pars contractilis 5, and protective shell 61 is connect with the side that its open side deviates from 3 measuring mechanisms 7；
Reflecting mirror 62 is installed in 61 inner wall of protective shell and face laser range finder, by laser reflection to laser range finder.
Seen from the above description, reflecting mirror can be by laser reflection into laser range finder.
Further, adjustment portion 8 includes fastener, extension bar 81 and extension bar shell 82, and extension bar shell 82 is sheathed on
Outside extension bar 81,82 inner sidewall of extension bar shell is installed with guide rail, and extension bar 81 with the sliding block that guide rail matches by being installed in
On guide rail, so that the extension bar being capable of the opposite sliding in extension bar shell；
Fastener passes through extension bar shell 82 and presses on extension bar 81, laggard to be adjusted to suitable length in extension bar 81
Row is fixed.
Seen from the above description, extension bar casing is set to outside extension bar, can adjust 3 ranging mechanism and magnetostatic ball
Between distance, ball bar can be made to be completely covered and meet the needs of different measurement spatial dimensions, fastener is capable of fixing extension bar
Position, guide rail and sliding block are used to be promoted the opposite fluency slided between extension bar and extension bar shell.
Further, pars contractilis 5 is an elastic telescopic set.
Seen from the above description, elastic telescopic set is set, ball bar can be increased to the adaptability of measurement spatial dimension.
The working principle of the invention is analyzed as follows:
When ball bar inclination measurement, it is assumed that the length of laser ranging mechanism measurement is l, then actually this ball bar device
Length variation when moving in a circle centered on the magnetostatic ball by workbench are as follows:
L=lcos θ (1)
Referring to Fig.1 and Fig. 4, when high-precise ball is there are when Z axis error, 3 measuring mechanisms will occur vertical with high-precise ball
Displacement, adjustment portion to pars contractilis will do circumference fortune with horizontal plane inclination into θ angle, this ball bar centered on the magnetostatic ball of workbench
Radical length variation when dynamic still can be measured accurately.
The rotation angle of ball bar can make circumference side when circumference moving interpolation by the sampling time and lathe of computer
It is calculated to feed speed, the feed speed of circumferencial direction is obtained by displacement sensor, and displacement passes
The measurement data of sensor will be transmitted to computer by way of wireless transmission.
It is easily achieved error measure of the ball bar in total movement spatial dimension using this ball bar, if ball bar circular arc
Centre coordinate O (the x of track0,y0,z0), (x, y, z) is the actual coordinate on ball bar operation arc track, theoretically circular arc rail
The coordinate T'(x', y', z' of mark each point), the error of each axis can indicate are as follows:
Relationship between center of circle O and physical location P has:
(R+ΔR)2=(x-x0)2+(y-y0)2+(z-z0)2 (3)
R is that the practical bar of ball bar is long, and Δ R is the margin of error.
(1) is substituted into (2) and asks local derviation that can obtain:
(R+ Δ R) dR=(x'+ Δ x-x0)dx+(y'+Δy-y0)dy+(z'+Δz-z0)dz (4)
(3) are replaced with the margin of error:
R Δ R=(x'-x0)Δx+(y'-y0)Δy+(z'-z0)Δz (5)
Therefore, ball bar is surveyed, and obtains composition error Δ R and kinematic axis error component Δ x, and the relationship between Δ y, Δ z can be with
It indicates an accepted way of doing sth (4).By taking experimentation of the ball bar on X/Y plane as an example, the influence of the error component in Z-direction is not considered,
Composition error and the relationship of error component are expressed as:
R Δ R=(x'-x0)Δx+(y'-y0)Δy (6)
Same composition error model of the ball bar in ZX and YZ plane is respectively:
R Δ R=(x'-x0)Δx+(z'-z0)Δz (7)
R Δ R=(y'-y0)Δy+(z'-z0)Δz (8)
(6), (7) and (8) formula is the fundamental equation of ball bar measuring device, reflect measurement result and error vector it
Between relationship.All Δ R are measured, all deviation from circular from curves are made.And each axis verticality of numerically-controlled machine tool, repeatability,
The parameter indexes such as gap, servo gain ratio match, servo performance and lead screw periodic error can be from deviation from circular from curve
It reflects.
Please refer to Fig. 1-Fig. 4, the embodiment of the present invention one are as follows:
A kind of modified ball bar device based on laser ranging, including magnetic force bowl seat 1 and workbench, magnetic force bowl seat 1 are solid
Surely it is installed on workbench, further includes 6, three magnetostatic ball 3, laser ranging mechanism 4, pars contractilis 5, reflecting part 7 and of measuring mechanism
For adjusting the adjustment portion 8 of magnetostatic ball and 3 measuring mechanism spacing, magnetostatic 3 side of ball is connect with adjustment portion 8, other side absorption
In on magnetic force bowl seat 1；
Adjustment portion 8 deviates from side, laser ranging mechanism 4, pars contractilis 5, reflecting part 6 and 3 measuring mechanisms 7 of magnetostatic ball 3
It is sequentially connected；
3 measuring mechanisms 7 are for being sheathed on outside the high-precise ball 9 of tested lathe；
6 one end of reflecting part is embedded at one end that pars contractilis 5 deviates from laser ranging mechanism 4, will come from laser ranging mechanism 4
Light 5 internal reflection of pars contractilis return laser ranging mechanism 4；
3 measuring mechanisms 7 drive reflecting part 6 to do moving interpolation with the movement of high-precise ball 9, so that reflecting part 6 is moving
Change in displacement on track feeds back to laser ranging mechanism 4；
Preferably, laser ranging mechanism 4 is connected through a screw thread with adjustment portion 8；
Referring to Figures 1 and 2, it is connected between reflecting part 6 and 3 measuring mechanisms 7 by a mobilizable joint 10.
Referring to Fig. 2, joint 10 includes bearing 101 and axle bed 102, reflecting part 6, bearing 101, axle bed 102 and 3 points of measurements
It is sequentially connected between mechanism 7, central axis seat 102 passes through 101 one end of bearing.
Referring to Figure 1 and Figure 3,3 measuring mechanisms 7 include ring set 71 and a plurality of displacement sensors 72, and ring set 71 can press from both sides
Set on 9 outside of high-precise ball, moving interpolation is done with the movement with high-precise ball 9；
A plurality of displacement sensors 72 are evenly distributedly installed in the outside of ring set 71,71 lateral wall of ring set by joint 10 with
Reflecting part 6 connects；
Preferably, displacement sensor quantity is 3；
Specifically, be arranged in hexagonal angle around ring set 71 between every two displacement sensor, to measure high-precise ball displacement, and
It can be improved measurement accuracy；
Specifically, be installed with the first Bluetooth communication modules on the outside of ring set, three displacement sensors all with the first Bluetooth transmission
Module electrical connection, is transferred to the first Bluetooth communication modules for the measurement data of displacement sensor；
Preferably, axle bed 102 is fixed on ring set 71 by lock-screw；
Referring to Fig. 2, laser ranging mechanism 4 includes toroidal shell 41, laser range finder, wireless transport module and spectroscope
42, reflection cavity 411 and laser pick-off chamber 412 are provided in toroidal shell 41, and 411 side wall of reflection cavity offers laser import
4111, reflection cavity 411 and the orthogonal side of laser import 4111 offer laser exit 4112；
Laser exit 4112 is connect with 5 one end of pars contractilis；
412 side of laser pick-off chamber of toroidal shell 41 is connect with adjustment portion 8；
The inclination of spectroscope 42 is installed in reflection cavity 411, will the light refraction from laser import to reflecting part 6；
Laser range finder is installed in laser pick-off chamber 412, and there are gap, laser with 411 bottom of reflection cavity for spectroscope 42
Laser range finder is injected across gap；
Wireless transport module is installed in laser pick-off chamber 412 and is electrically connected with laser range finder.
Preferably, wireless transport module is the second Bluetooth communication modules；
Specifically, 4 measurement accuracy of laser ranging mechanism can achieve ± 0.01mm, when ball bar is centered on magnetostatic ball 3
Circular motion is carried out, when moving interpolation affected with the high-precise ball of numerically-controlled machine tool, the total length variation of adjustment portion and pars contractilis
Amount will accurately be recorded by laser measurement mechanism 4, and be sent to computer by wireless transport module and carried out data analysis；
Referring to Fig. 2, laser range finder includes timer and laser pickoff, laser pickoff face reflecting part 6, to receive
The laser reflected by reflecting part 6；
Timer is electrically connected with laser pickoff, to calculate the time span of laser reflection process.
Referring to Fig. 2, reflecting part 6 includes the protective shell 61 and reflecting mirror 62 that there is opening in side, 61 open side direction of protective shell
Laser range finder is simultaneously connect with pars contractilis 5, and protective shell 61 is connect with the side that its open side deviates from 3 measuring mechanisms 7；
Reflecting mirror 62 is installed in 61 inner wall of protective shell and face laser range finder, by laser reflection to laser range finder；
Specifically, laser enters in reflection cavity 411 from laser import 4111 referring to Fig. 2, after the reflection of spectroscope 42,
Laser passes through pars contractilis inner cavity and reaches reflecting mirror 62, and laser is reflexed to along the optical path parallel with original optical path after the reflection of reflecting mirror 62
Laser ranging mechanism 4 receives laser by laser range finder, and timer measures laser from the received time is emitted to, calculate away from
From laser ranging mechanism is connect by bluetooth module with computer, so that on data transfer to computer.
Referring to Figures 1 and 2, adjustment portion 8 include fastener, extension bar 81 and extension bar shell 82,82 sets of extension bar shell
Outside extension bar 81,82 inner sidewall of extension bar shell is installed with guide rail, and extension bar 81 is filled by the sliding block to match with guide rail
On guide rail, so that the extension bar being capable of the opposite sliding in extension bar shell；
Fastener passes through extension bar shell 82 and presses on extension bar 81, laggard to be adjusted to suitable length in extension bar 81
Row is fixed；
Preferably, extension bar 81 and extension bar shell 82 opposite can be slided by sliding block and guide rail, elongation range 0mm
~600mm；
Pars contractilis 5 is an elastic telescopic set.
Preferably, the initial length of telescopic is 60mm, and maximum elongation length is 30mm, and maximum compression length is
30mm；
It can be obtained by foregoing description, the measuring range of ball bar is 30mm to 690mm in the present invention.
In conclusion a kind of modified ball bar device based on laser ranging provided by the invention, is arranged adjustment portion, use
In the spacing before measuring between 3 ranging mechanism of adjusting and magnetostatic ball, and regular length, pars contractilis will be according to the tune of adjustment portion
It is flexible to save length progress adaptability, ball bar can be made to meet the needs of different measurement spatial dimensions；Laser ranging mechanism is set
And reflecting mirror carries out laser ranging using the principle of laser reflection, to measure the radial variations value of different location on circumference, into
And the kinematic error of tested lathe can be obtained, measurement data will be transmitted to computer by the second Bluetooth communication modules；3 points of surveys
Displacement sensor on measuring mechanism can measure the displacement of high-precise ball and further promote the accuracy of measurement, and pass through first
Bluetooth communication modules are transmitted to computer, and the calculating and error analysis of final measurement are carried out by computer.The present invention can
The precision measure of full extent of space is carried out, and the accuracy of measurement accuracy is high, promotes the accuracy of measurement of Precision of NC Machine Tool.
The above description is only an embodiment of the present invention, is not intended to limit the scope of the invention, all to utilize this hair
Equivalents made by bright specification and accompanying drawing content are applied directly or indirectly in relevant technical field, similarly include
In scope of patent protection of the invention.
Claims (9)
1. a kind of modified ball bar device based on laser ranging, including magnetic force bowl seat and workbench, the magnetic force bowl seat is solid
Surely it is installed on the workbench, which is characterized in that further include magnetostatic ball, laser ranging mechanism, pars contractilis, reflecting part, 3 points
Measuring mechanism and adjustment portion for adjusting magnetostatic ball Yu 3 measuring mechanism spacing, the magnetostatic ball side and the tune
The connection of section portion, the other side is adsorbed on the magnetic force bowl seat；
The adjustment portion away from the magnetostatic ball side, laser ranging mechanism, pars contractilis, reflecting part and 3 measuring mechanisms according to
Secondary connection；
3 measuring mechanisms are for being sheathed on outside the high-precise ball of tested lathe；
Described reflecting part one end is embedded at one end that the pars contractilis deviates from the laser ranging mechanism, will come from the laser
The light of ranging mechanism goes back to the laser ranging mechanism in pars contractilis internal reflection；
3 measuring mechanisms drive the reflecting part to do moving interpolation with the movement of the high-precise ball, so that the reflection
Change in displacement of the portion on motion profile feeds back to the laser ranging mechanism.
2. a kind of modified ball bar device based on laser ranging according to claim 1, which is characterized in that the reflection
Pass through a mobilizable joint connection between portion and 3 measuring mechanisms.
3. a kind of modified ball bar device based on laser ranging according to claim 2, which is characterized in that the joint
Including bearing and axle bed, it is sequentially connected between the reflecting part, bearing, axle bed and 3 measuring mechanisms, wherein the axle bed passes through
Described bearing one end.
4. a kind of modified ball bar device based on laser ranging according to claim 2, which is characterized in that described 3 points
Measuring mechanism includes ring set and a plurality of displacement sensors, and the ring set can be located on the outside of the high-precise ball, with height
Moving interpolation is done in the movement of precision ball；
A plurality of institute's displacement sensors are evenly distributedly installed on the outside of the ring set, and the ring set lateral wall passes through the pass
Section is connect with the reflecting part.
5. a kind of modified ball bar device based on laser ranging according to claim 1, which is characterized in that the laser
Ranging mechanism includes toroidal shell, laser range finder, wireless transport module and spectroscope, and reflection is provided in the toroidal shell
Chamber and laser pick-off chamber, the reflection cavity side wall offer laser import, and the reflection cavity is mutually perpendicular to the laser import
Side offer laser exit；
The laser exit is connect with described pars contractilis one end；
The laser pick-off chamber side of the toroidal shell is connect with the adjustment portion；
Spectroscope inclination is installed in the reflection cavity, will the light refraction from laser import to reflecting part；
It is intracavitary that the laser range finder is installed in the laser pick-off, the spectroscope and the reflection cavity bottom there are gap,
Laser passes through the gap and injects the laser range finder；
It is intracavitary and be electrically connected with the laser range finder that the wireless transport module is installed in the laser pick-off.
6. a kind of modified ball bar device based on laser ranging according to claim 5, which is characterized in that the laser
Rangefinder includes timer and laser pickoff, reflecting part described in the laser pickoff face, to receive by the reflecting part
The laser of reflection；
The timer is electrically connected with the laser pickoff, to calculate the time span of laser reflection process.
7. a kind of modified ball bar device based on laser ranging according to claim 5, which is characterized in that the reflection
Portion includes the protective shell and reflecting mirror that there is opening in side, and the protective shell open side is stretched towards the laser range finder and with described
The connection of contracting portion, the protective shell are connect with the side that its open side deviates from 3 measuring mechanisms；
The reflecting mirror is installed in laser range finder described in the protective shell inner wall and face, by laser reflection to laser ranging
Instrument.
8. a kind of modified ball bar device based on laser ranging according to claim 1, which is characterized in that the adjusting
Portion includes fastener, extension bar and extension bar shell, and the extension bar casing is set to outside the extension bar, outside the extension bar
Shell inner sidewall is installed with guide rail, and the extension bar is installed on the guide rail by the sliding block to match with the guide rail, so that
The extension bar being capable of the opposite sliding in the extension bar shell；
The fastener passes through the extension bar shell and presses on the extension bar, to be adjusted to suitable length in the extension bar
It is fixed after degree.
9. a kind of modified ball bar device based on laser ranging according to claim 1, which is characterized in that described flexible
Portion is an elastic telescopic set.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910670203.4A CN110370085B (en) | 2019-07-24 | 2019-07-24 | Improved ball arm instrument device based on laser ranging |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910670203.4A CN110370085B (en) | 2019-07-24 | 2019-07-24 | Improved ball arm instrument device based on laser ranging |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110370085A true CN110370085A (en) | 2019-10-25 |
| CN110370085B CN110370085B (en) | 2021-03-09 |
Family
ID=68255432
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910670203.4A Expired - Fee Related CN110370085B (en) | 2019-07-24 | 2019-07-24 | Improved ball arm instrument device based on laser ranging |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110370085B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111256597A (en) * | 2020-02-28 | 2020-06-09 | 陕西科技大学 | Mechanical laser tracking double-ball-bar instrument |
| CN111922782A (en) * | 2020-07-06 | 2020-11-13 | 杭州电子科技大学 | Method for detecting machine tool space error by using ball bar instrument constructed by ball hinge |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4435905A (en) * | 1982-03-15 | 1984-03-13 | The United States Of America As Represented By The United States Department Of Energy | Telescoping magnetic ball bar test gage |
| US4492036A (en) * | 1984-01-11 | 1985-01-08 | Brown & Sharp Manufacturing Company | Magnetic ball bar gauge |
| US5428446A (en) * | 1993-03-29 | 1995-06-27 | Ziegert; John C. | Measurement instrument with interferometer and method |
| JPH0961115A (en) * | 1995-08-28 | 1997-03-07 | Sokkia Co Ltd | Ball gauge bar and optical length measuring device |
| EP0786644A2 (en) * | 1996-01-27 | 1997-07-30 | Renishaw plc | Ball bar apparatus for calibrating a machine |
| JP2010137321A (en) * | 2008-12-11 | 2010-06-24 | Jtekt Corp | Double ball bar |
| CN101947746A (en) * | 2010-08-17 | 2011-01-19 | 西安交通大学 | Laser interference-based ball arm measuring device and method |
| CN208458667U (en) * | 2018-06-15 | 2019-02-01 | 厦门万久科技股份有限公司 | A kind of scalable ball bar of articulated type |
-
2019
- 2019-07-24 CN CN201910670203.4A patent/CN110370085B/en not_active Expired - Fee Related
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4435905A (en) * | 1982-03-15 | 1984-03-13 | The United States Of America As Represented By The United States Department Of Energy | Telescoping magnetic ball bar test gage |
| US4492036A (en) * | 1984-01-11 | 1985-01-08 | Brown & Sharp Manufacturing Company | Magnetic ball bar gauge |
| US5428446A (en) * | 1993-03-29 | 1995-06-27 | Ziegert; John C. | Measurement instrument with interferometer and method |
| JPH0961115A (en) * | 1995-08-28 | 1997-03-07 | Sokkia Co Ltd | Ball gauge bar and optical length measuring device |
| EP0786644A2 (en) * | 1996-01-27 | 1997-07-30 | Renishaw plc | Ball bar apparatus for calibrating a machine |
| JP2010137321A (en) * | 2008-12-11 | 2010-06-24 | Jtekt Corp | Double ball bar |
| CN101947746A (en) * | 2010-08-17 | 2011-01-19 | 西安交通大学 | Laser interference-based ball arm measuring device and method |
| CN208458667U (en) * | 2018-06-15 | 2019-02-01 | 厦门万久科技股份有限公司 | A kind of scalable ball bar of articulated type |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111256597A (en) * | 2020-02-28 | 2020-06-09 | 陕西科技大学 | Mechanical laser tracking double-ball-bar instrument |
| CN111922782A (en) * | 2020-07-06 | 2020-11-13 | 杭州电子科技大学 | Method for detecting machine tool space error by using ball bar instrument constructed by ball hinge |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110370085B (en) | 2021-03-09 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107588742B (en) | A kind of cylindrical gear profile bias measurement method based on line-structured light | |
| KR101906942B1 (en) | Calibration of a coordinate measuring machine using a calibration laser head at the tool centre point | |
| CN103692292B (en) | The method carrying out workpiece size on-line measurement on lathe | |
| CN102353336B (en) | Grouping device capable of realizing dynamic non-contact precise measurement for diameters of bearing balls | |
| CN110370085A (en) | A kind of modified ball bar device based on laser ranging | |
| CN106863013B (en) | A kind of the multiple degrees of freedom error simultaneous measuring apparatus and method of linear feeding system | |
| CN202101656U (en) | Double-measuring head structure | |
| CN208635732U (en) | A kind of full-scale high-precision testing agency of railway bearing outer ring | |
| CN106918301B (en) | Plane surface shape sub-aperture stitching interferometer measuring device and measurement method | |
| CN108680124A (en) | Shape tolerance photoelectric detection robot and detection method | |
| CN104807417A (en) | Rapid measurement method for parallelism error of linear guide rails | |
| CN106382885A (en) | Profile precision measuring device for slide block of rolling linear guide pair | |
| CN110220467A (en) | A kind of axle measuring machine | |
| CN112815866A (en) | Internal thread detector based on laser profile scanning and detection method thereof | |
| CN209432070U (en) | A kind of Endoporus measuring device | |
| CN208296765U (en) | A kind of ball screw assembly, journey error measuring device with compensation device | |
| Song et al. | Development and testing of a muti-sensor measurement system for roundness and axis straightness errors of deep-hole parts | |
| CN209459562U (en) | A kind of online small lot detection tool of wearing ring | |
| CN107339967A (en) | A kind of roundness measuring equipment | |
| CN201059944Y (en) | Hand-hold multi-items bearings measuring apparatus | |
| CN208018972U (en) | Stepped hole aperture automatic measurement mechanism | |
| CN108627098A (en) | A kind of ball screw assembly, journey error measuring device with compensation device | |
| CN109916344A (en) | Air-flotation type link rod measuring appliance | |
| CN206223089U (en) | A kind of ZYGO laser interferometer measurements regulation positioning fixture | |
| CN114812464A (en) | Product height testing mechanism |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210309 |