CN102749032A - Light and magnetism combined full-angle three-dimensional detection system - Google Patents

Light and magnetism combined full-angle three-dimensional detection system Download PDF

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Publication number
CN102749032A
CN102749032A CN2012102139202A CN201210213920A CN102749032A CN 102749032 A CN102749032 A CN 102749032A CN 2012102139202 A CN2012102139202 A CN 2012102139202A CN 201210213920 A CN201210213920 A CN 201210213920A CN 102749032 A CN102749032 A CN 102749032A
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CN
China
Prior art keywords
detection system
light
confinement
dimensional detection
full angle
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CN2012102139202A
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Chinese (zh)
Inventor
陈锋
李尚会
邴智刚
程力
张治权
杨翊
陈佳
吴哲
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浙江省质量检测科学研究院
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Priority to CN2012102139202A priority Critical patent/CN102749032A/en
Publication of CN102749032A publication Critical patent/CN102749032A/en

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Abstract

The invention relates to a light and magnetism combined full-angle three-dimensional detection system, which is characterized in that the system comprises a detection head system which can rotate universally, a positioning system and an optical measuring system. The detection head system comprises a detection head seat, a universal rotating mechanism and a probe with a detection head, wherein the probe with the detection head is installed on the universal rotating mechanism and the universal rotating mechanism is installed on the detection head seat. The positioning mechanism comprises positioning mechanism comprises a magnetic bar which is fixedly arranged on the universal rotating mechanism and a magnetic body which is fixedly arranged on the detection head seat, wherein the magnetic bar and the magnetic body are magnetically matched with each other. The optical measuring system comprises a light path converter, a light source and a light sensing element, wherein the light path converter is fixedly arranged on the magnetic bar, the light of the light source passes through the light path converter and then enters the light sensing element, and the light sensing element is connected with an intelligent measuring module which is used for converting optical signals into three-dimensional coordinate signals and conducting data calculation. The light and magnetism combined full-angle three-dimensional detection system has the advantages that the volume is smaller, the accuracy is high and the measurement errors are effectively reduced.

Description

The full angle three-dimensional detection system of optomagnetic combination

Technical field

The invention belongs to the plant equipment pick-up unit.Exactly, be a kind of full angle three-dimensional detection system.

Background technology

Detection system is generally partly formed by triggering gauge head, trigger pip acquisition system, measuring head base, control system etc.Present detection system; Its workflow is: gauge head and workpiece touching and when producing angle and changing; A switching signal takes place, and after this signal was sent to control system, control system was to the data latching in the raster count device here; Send Survey Software after treatment to, a point has been measured in expression.Its cardinal principle is: touching power causes elastic deformation, utilizes caused distance of elastic deformation and resistance variations to obtain data-signal.Its shortcoming is: utilize the detection system of mechanical mechanism and mechanics principle can't accomplish that not only structure is very little, also can't accomplish that measuring accuracy is very high; And distortion of materials can change along with the continuity of service time, and measuring accuracy is reduced, and serviceable life is limited.In addition; The direction vector that traditional detection system can't produce the power of when touching from the full angle perception gauge head and the workpiece of 3 D stereo; This just can't effectively compensate the contact radius really, just exists in theory inevitably error and (has only when machine and touch survey along the opposite direction of measured direction vector, just can compensate; But can't accomplish basically to measure along direction vector fully in measuring), improved the systematic error of detection system.

Summary of the invention

In order to overcome the deficiency of the measuring error that the detection system volume is big, the elastic deformation precision is low, elastic deformation is brought uncertainty and inevitable compensating error cause, the present invention provides that a kind of volume is less, precision is high, effectively reduces the full angle three-dimensional detection system of the optomagnetic combination of measuring error.

The technical solution adopted for the present invention to solve the technical problems is:

A kind of full angle three-dimensional detection system of optomagnetic combination; Comprise gauge head system, detent mechanism and the optical measuring system that to carry out universal rotation; Said gauge head system comprises measuring head base, universal rotation mechanism and has the chaining pin of gauge head; The said chaining pin that has gauge head is installed on the said universal rotation mechanism, and said universal rotation mechanism is installed on the measuring head base; Said detent mechanism comprises bar magnet that is fixed in said universal rotation mechanism and the magnetic that is fixed in said measuring head base; The mutual magnetic force of said bar magnet and said magnetic cooperates; Said optical measuring system comprises optical link converter, light source and photo-sensitive cell; Said optical link converter is fixed on the said bar magnet; The light of said light source gets into said photo-sensitive cell after through the optical link converter, said photo-sensitive cell be used for changing light signal into three-dimensional coordinate signal the go forward side by side intelligent detecting module of line data calculating and be connected.

Further, said universal rotation mechanism comprise universal rotation roating sphere, go up confinement, confinement and elastic component down, the said chaining pin that has gauge head is installed in the said roating sphere, said roating sphere is positioned at said confinement, the confinement down of going up; Said confinement down is connected with said measuring head base, and the said confinement that goes up is connected with said measuring head base through said elastic component.

Or: said universal rotation mechanism comprises the roating sphere and following confinement of universal rotation, and said confinement down is connected with said measuring head base, and said roating sphere is positioned at said confinement down, and the said chaining pin that has gauge head is installed in the said roating sphere.

Again or: said universal rotation mechanism is a universal joint.

Further, said magnet is positioned at the top of said bar magnet.

Or: said bar magnet passes the middle part of magnet and is positioned at the top of said magnet.

Further, said optical link converter is perpendicular to the axis of said bar magnet.

Or: said optical link converter is the plane that set angle is arranged with said bar magnet.

Again or: said optical link converter is for having the polyhedron of set angle with said bar magnet.

Said polyhedron is concave surface or convex surface.

Said light source is a multiple light courcess, and said photo-sensitive cell is a Multi sensor, a light source and a photo-sensitive cell coupling.

Technical conceive of the present invention is: the full angle three-dimensional detection system of optomagnetic combination is made up of the gauge head mechanism that can carry out universal rotation, detent mechanism, optical measurement mechanism and control system.Whole the moving of said gauge head mechanism; After the gauge head on the said chaining pin 1 touches workpiece; According to the position of workpiece with respect to gauge head, gauge head is produced acting force, rotation and straight line that the acting force that is produced makes the said roating sphere 4 that can carry out universal rotation carry out respective direction move.The position change of said roating sphere 4 drives the position change of said optical link converter 8.The position change of said optical link converter 8 drives the radiation direction change that said light source 10 gets into the optical link converter; Cause said photo-sensitive cell 11 to receive the light of different directions; The variation latch data of said photo-sensitive cell through light through receiving the light of different directions, judges that gauge head and workpiece on the said chaining pin 1 produce the trivector direction of the power of when touching; The contact radius is carried out the compensation of system error-free, and detection system is sent the whole order that stops of moving simultaneously.Said photo-sensitive cell changes light signal into the three-dimensional coordinate signal, and carries out corresponding data and calculate, and accomplishes the measurement of a point.After measuring command stopped, detection system was with the slight distance rollback, and said bar magnet 7 interacts with said magnetic 9, can get back to original position after making said bar magnet 7 along with said chaining pin system pivot offset, realized the location.

Beneficial effect of the present invention mainly shows: 1, the gauge head system bulk can do very little, help small size and measure.2, the gauge head system can obtain the three-dimensional of gauge head and workpiece acting force, carries out after the compensation of gear shaper without theoretical errors the three-dimensional coordinate of the workpiece after can be accurately.3, optical measurement can improve measuring accuracy.4, the magnetic location guarantees precision and permanance.

Description of drawings

Fig. 1 is a kind of synoptic diagram of full angle three-dimensional detection system of optomagnetic combination.

Fig. 2 is the synoptic diagram of the full angle three-dimensional detection system of another kind of preferred optomagnetic combination.

Fig. 3 is the synoptic diagram of the full angle three-dimensional detection system of another preferred optomagnetic combination.

Fig. 4 is the synoptic diagram of a kind of preferred optical measurement mechanism.

Fig. 5 is the synoptic diagram of another kind of preferred optical measurement mechanism.

Embodiment

Below in conjunction with accompanying drawing the present invention is further described.

With reference to Fig. 1 ~ Fig. 5, a kind of full angle three-dimensional detection system of optomagnetic combination comprises gauge head mechanism, detent mechanism, optical measurement mechanism and the control system that can carry out universal rotation.Said gauge head mechanism comprises chaining pin 1, universal rotation mechanism and the measuring head base 2 that has gauge head; Said universal rotation mechanism comprises the roating sphere 4 that can carry out universal rotation, last confinement 6, following confinement 3 and elastic component 5; Said confinement 3 down is connected with said measuring head base 2; The said confinement 6 that goes up is connected with said measuring head base 2 through said elastic component 5; The said chaining pin 1 that has gauge head is installed in the said roating sphere 4 that can carry out universal rotation, and the said roating sphere 4 that can carry out universal rotation receives said go up confinement 6, said 3 constraints of confinement down.Said detent mechanism comprises bar magnet 7 that is fixed in said roating sphere 4 and the magnetic 9 that is fixed in said measuring head base, and said bar magnet 4 interacts with said magnetic 7.Said optical measuring system comprises optical link converter 8, light source 10 and photo-sensitive cell 11, and said optical link converter 8 is fixed on the said bar magnet 7, and the light of said light source 10 gets into said photo-sensitive cell 11 through optical link converter 8 backs.Said photo-sensitive cell 11 changes light signal into the three-dimensional coordinate signal, and carries out corresponding data and calculate, and accomplishes the measurement of a point.

Present embodiment; Said gauge head mechanism can wholely move under the control of control system; After the gauge head on the said chaining pin 1 touches workpiece; According to the position of workpiece with respect to gauge head, workpiece produces acting force through the trivector direction to gauge head, and rotation and straight line that the acting force that is produced makes the said roating sphere 4 that can carry out universal rotation carry out respective direction move.The position change of said roating sphere 4 drives the position change of said optical link converter 8.The position change of said optical link converter 8 drives the radiation direction change that said light source 10 gets into the optical link converter; Cause said photo-sensitive cell 11 to receive the light of different directions; The variation latch data of said photo-sensitive cell through light through receiving the light of different directions, judges that gauge head and workpiece on the said chaining pin 1 produce the trivector direction of the power of when touching; The contact radius is carried out the compensation of system error-free, and detection system is sent the whole order that stops of moving simultaneously.Said photo-sensitive cell changes light signal into the three-dimensional coordinate signal, and carries out corresponding data and calculate, and accomplishes the measurement of a point.After measuring command stopped, detection system was with the slight distance rollback, and said bar magnet 7 interacts with said magnetic 9, can get back to original position after making said bar magnet 7 along with said chaining pin system pivot offset, realized the location.

As a kind of the deriving of the full angle three-dimensional detection system of optomagnetic combination, with reference to Fig. 2, adjust the relative position of said bar magnet 7 and said magnetic 9, and cancel said confinement 6 and the said elastic component 5 gone up.Make the chaining pin 1, said bar magnet 7 and the said optical link converter 8 that have gauge head under the effect of the said bar magnet 7 and the common magnetive attraction of said magnetic 9, contact said confinement 3 down with little power.Can make said gauge head mechanism (except that measuring head base and confinement) restore the location like this, said gauge head mechanism (except that measuring head base and confinement) is rotated and straight line moves in confinement, realize the detection of trivector.

Another kind as a kind of full angle three-dimensional detection system of optomagnetic combination is derived; With reference to Fig. 1 and Fig. 3, can carry out described in Fig. 1 universal rotation roating sphere 4, go up confinement 6, down confinement 3, elastic component 5 Fig. 3 can be arranged is that the universal joint etc. of example realizes that other mechanisms of comprehensive rotation replace.

With reference to Fig. 4 and Fig. 5, said optical link converter 8 can be perpendicular to said bar magnet 7, also can be plane and the polyhedron that certain angle is arranged with said bar magnet 7, and polyhedron can be a convex, also can be spill.Light through said optical link converter 8 can be reflect also can be the refraction.Said light source 10 can be that multiple light courcess and said photo-sensitive cell 11 also can be Multi sensors.

The full angle three-dimensional detection system of this optomagnetic combination has that volume is little, precision is high and advantage such as good endurance, can be widely used in realizing high-accuracy measurement in other multiple detecting devicess such as three coordinate measuring machine, contourgraph.

Claims (10)

1. the full angle three-dimensional detection system of an optomagnetic combination; It is characterized in that: comprise gauge head system, detent mechanism and the optical measuring system that to carry out universal rotation; Said gauge head system comprises measuring head base, universal rotation mechanism and has the chaining pin of gauge head; The said chaining pin that has gauge head is installed on the said universal rotation mechanism, and said universal rotation mechanism is installed on the measuring head base; Said detent mechanism comprises bar magnet that is fixed in said universal rotation mechanism and the magnetic that is fixed in said measuring head base; The mutual magnetic force of said bar magnet and said magnetic cooperates; Said optical measuring system comprises optical link converter, light source and photo-sensitive cell; Said optical link converter is fixed on the said bar magnet; The light of said light source gets into said photo-sensitive cell after through the optical link converter, said photo-sensitive cell be used for changing light signal into three-dimensional coordinate signal the go forward side by side intelligent detecting module of line data calculating and be connected.
2. the full angle three-dimensional detection system of optomagnetic combination as claimed in claim 1; It is characterized in that: said universal rotation mechanism comprises the roating sphere of universal rotation, last confinement, following confinement and elastic component; The said chaining pin that has gauge head is installed in the said roating sphere, and said roating sphere is positioned at said confinement, the following confinement of going up; Said confinement down is connected with said measuring head base, and the said confinement that goes up is connected with said measuring head base through said elastic component.
3. the full angle three-dimensional detection system of optomagnetic combination as claimed in claim 1; It is characterized in that: said universal rotation mechanism comprises the roating sphere and following confinement of universal rotation; Said confinement down is connected with said measuring head base; Said roating sphere is positioned at said confinement down, and the said chaining pin that has gauge head is installed in the said roating sphere.
4. the full angle three-dimensional detection system of optomagnetic combination as claimed in claim 1, it is characterized in that: said universal rotation mechanism is a universal joint.
5. like the full angle three-dimensional detection system like the described optomagnetic combination of one of claim 1 ~ 4, it is characterized in that: said magnet is positioned at the top of said bar magnet.
6. like the full angle three-dimensional detection system of the described optomagnetic combination of one of claim 1 ~ 4, it is characterized in that: said bar magnet passes the middle part of magnet and is positioned at the top of said magnet.
7. like the full angle three-dimensional detection system of the described optomagnetic combination of one of claim 1 ~ 4, it is characterized in that: said optical link converter is perpendicular to the axis of said bar magnet.
8. like the full angle three-dimensional detection system of the described optomagnetic combination of one of claim 1 ~ 4, it is characterized in that: said optical link converter is the plane that set angle is arranged with said bar magnet.
9. like the full angle three-dimensional detection system of the described optomagnetic combination of one of claim 1 ~ 4, it is characterized in that: said optical link converter is the polyhedron that set angle is arranged with said bar magnet, and said polyhedron is concave surface or convex surface.
10. like the full angle three-dimensional detection system of the described optomagnetic combination of one of claim 1 ~ 4, it is characterized in that: said light source is a multiple light courcess, and said photo-sensitive cell is a Multi sensor, a light source and a photo-sensitive cell coupling.
CN2012102139202A 2012-06-26 2012-06-26 Light and magnetism combined full-angle three-dimensional detection system CN102749032A (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105136038A (en) * 2015-09-30 2015-12-09 北方民族大学 Direct-incidence light arm amplification type three-dimensional scanning measuring head
CN105180813A (en) * 2015-09-30 2015-12-23 北方民族大学 Direct incident type light arm amplifying two-dimensional linear probe
CN107152912A (en) * 2017-06-28 2017-09-12 深圳华清精密科技有限公司 A kind of optics triggering gauge head and measuring method
CN108955617A (en) * 2018-05-29 2018-12-07 潍坊科技学院 deflection detector

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US4972597A (en) * 1988-12-15 1990-11-27 Governor of Toyama Prefecture, Yutaka Nakaoki Three-dimensional displacement gage
GB2238616A (en) * 1989-10-18 1991-06-05 Mitutoyo Corp Touch signal probe
US5222304A (en) * 1988-07-05 1993-06-29 British Technology Group Limited Probes
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US20040125382A1 (en) * 2002-12-30 2004-07-01 Banks Anton G. Optically triggered probe
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CN101886922A (en) * 2009-05-15 2010-11-17 松下电器产业株式会社 Probe for three-dimensional shape measuring apparatus and 3 d shape testing device
CN202734761U (en) * 2012-06-26 2013-02-13 浙江省质量检测科学研究院 Light and magnetism combined full-angle three-dimensional detection system

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5222304A (en) * 1988-07-05 1993-06-29 British Technology Group Limited Probes
US4972597A (en) * 1988-12-15 1990-11-27 Governor of Toyama Prefecture, Yutaka Nakaoki Three-dimensional displacement gage
GB2238616A (en) * 1989-10-18 1991-06-05 Mitutoyo Corp Touch signal probe
US5917181A (en) * 1996-04-05 1999-06-29 Marsushita Electric Industrial, Co., Ltd. Profile measuring apparatus
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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105136038A (en) * 2015-09-30 2015-12-09 北方民族大学 Direct-incidence light arm amplification type three-dimensional scanning measuring head
CN105180813A (en) * 2015-09-30 2015-12-23 北方民族大学 Direct incident type light arm amplifying two-dimensional linear probe
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CN105180813B (en) * 2015-09-30 2019-06-07 北方民族大学 A kind of direct incident-type light arm scale-up version two-dimensional linear gauge head
CN107152912A (en) * 2017-06-28 2017-09-12 深圳华清精密科技有限公司 A kind of optics triggering gauge head and measuring method
CN107152912B (en) * 2017-06-28 2019-10-01 深圳华清精密科技有限公司 A kind of optics triggering gauge head and measurement method
CN108955617A (en) * 2018-05-29 2018-12-07 潍坊科技学院 deflection detector

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Application publication date: 20121024