CN105577973A - 3d scanner - Google Patents
3d scanner Download PDFInfo
- Publication number
- CN105577973A CN105577973A CN201610059748.8A CN201610059748A CN105577973A CN 105577973 A CN105577973 A CN 105577973A CN 201610059748 A CN201610059748 A CN 201610059748A CN 105577973 A CN105577973 A CN 105577973A
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- China
- Prior art keywords
- carrying disk
- axis body
- axis
- face
- scanner according
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Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
- H04N1/04—Scanning arrangements, i.e. arrangements for the displacement of active reading or reproducing elements relative to the original or reproducing medium, or vice versa
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
- H04N1/00127—Connection or combination of a still picture apparatus with another apparatus, e.g. for storage, processing or transmission of still picture signals or of information associated with a still picture
- H04N1/00204—Connection or combination of a still picture apparatus with another apparatus, e.g. for storage, processing or transmission of still picture signals or of information associated with a still picture with a digital computer or a digital computer system, e.g. an internet server
- H04N1/00236—Connection or combination of a still picture apparatus with another apparatus, e.g. for storage, processing or transmission of still picture signals or of information associated with a still picture with a digital computer or a digital computer system, e.g. an internet server using an image reading or reproducing device, e.g. a facsimile reader or printer, as a local input to or local output from a computer
- H04N1/00241—Connection or combination of a still picture apparatus with another apparatus, e.g. for storage, processing or transmission of still picture signals or of information associated with a still picture with a digital computer or a digital computer system, e.g. an internet server using an image reading or reproducing device, e.g. a facsimile reader or printer, as a local input to or local output from a computer using an image reading device as a local input to a computer
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
- H04N1/00519—Constructional details not otherwise provided for, e.g. housings, covers
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
- H04N1/04—Scanning arrangements, i.e. arrangements for the displacement of active reading or reproducing elements relative to the original or reproducing medium, or vice versa
- H04N1/047—Detection, control or error compensation of scanning velocity or position
Abstract
The invention provides a 3D scanner, which comprises a mounting base, a carrier plate, a carrier plate driving mechanism and a scanning unit, wherein the mounting base comprises a fixed plate and an upright post arranged at one end of the fixed plate; the carrier plate driving mechanism comprises a swing driving component and a rotary driving part; the swing driving component drives the carrier plate to swing; the rotary driving part drives the carrier plate to rotate; the scanning device is arranged at the top end of the upright post and is used for scanning an object on the carrier plate to collect data. The 3D scanner is simple in structure, and multidirectional and precise scanning of the object can be realized.
Description
Technical field
The present invention relates to scanner technology field, be specifically related to 3D scanner.
Background technology
Along with the development of scanning technique, at present, the existing 3D scanner (also known as spatial digitizer) object being carried out to stereoscan on the market, so, outward appearance and the structured data that can collect object are in time analyzed.So current 3D scanner, complicated integral structure, and 3D scanning can not be carried out to object in all directions rapidly, the precision of scanning is undesirable.
Summary of the invention
In view of the above, it is simple that the present invention is necessary to provide a kind of structure, multi-angle can realize the accurate 3D scanner scanned rapidly.
A kind of 3D scanner, comprise mount pad, carrying disk, carrying disk driving mechanism and scanning means, mount pad comprises fixed head and the column being built up in fixed head one end, carrying disk driving mechanism comprises wobble drive assembly and rotary drive, wobble drive assembly comprises supporting bracket, wobble drive motor, axis body, axis body supporting seat, gear train and pallet, supporting bracket is slidably disposed on fixed head, wobble drive motor sets firmly on the supporting plate, axis body supporting seat is two and relatively sets firmly on the supporting plate, axis body is arranged between two axis body supporting seats rotationally and the pivot pin at axis body two ends stretches to corresponding axis body supporting seat respectively, gear train is intermeshing driving gear and driven gear, driving gear is set in the rotating shaft end of wobble drive motor regularly, driven gear is formed on the outer peripheral face of axis body, pallet and axis body affixed, rotary drive to be arranged on axis body and the rotating shaft end of rotary drive through pallet and carrying disk affixed, carrying disk is rotatably arranged on pallet, move carrying disk by wobble drive motor driven belts to swing, scanning means is arranged on the top of column, in order to scan the object on carrying disk with image data.
Further, described carrying disk surface distributed has some location holes.
Further, described axis body comprises body shaft and is formed in the guide plate of body shaft periphery and proximate end face, body shaft is for being semi-cylindrical in configuration, its end face is horizontal plane and it offers containing cavity, bottom surface is arc surface, guide plate is the arc being formed in bottom surface, body shaft periphery and adjacent end face, and the side that each axis body supporting seat is connected with axis body forms a step trough, in order to accommodating described guide plate.
Further, described in each, step trough bottom surface is placed with two breach, is separately installed with return idler in two breach, and return idler coordinates the rotation of described guide plate for supporting.
Further, described rotary drive selects motor, is arranged in the containing cavity of body shaft end face.
Further, described scanning means comprises main body and is arranged on camera lens, the light source on an end face of main body, main body one end can be connected on column to rotation, camera lens is two, be arranged on main body end face and contiguous both sides respectively, light source is one, is arranged on the middle part of main body end face.
Further, the described axis of light source lens barrel and the axis being parallel of lens barrel, light source lens barrel Axis Extension is to carrying disk center, and before and after between carrying disk surface and horizontal plane, pivot angle scope is respectively 0-55 °, and the axis of light source lens barrel and the angle in horizontal plane direction are set to 30 °.
Further, described 3D scanner comprises computer, and described computer connects the main body of scanning means by electric wire, the data analysis of computer in order to be gathered by camera lens.
Further, described supporting bracket replaces with the turntable structure be arranged on fixed head, the rotating disk that turntable structure comprises base and is arranged on rotationally on base, is provided with drive unit in order to drive described dial rotation, rotating disk is installed described wobble drive assembly in base.
Further, described scanning means is supported by the expansion link being arranged on column top, and scanning means and expansion link can before and after and side direction rotation be connected.
Compared to prior art, 3D scanner structure of the present invention is simple, by rotating and oscillation adjustment object, can realize the comprehensive multi-faceted accurate scanning of object.
The preferred embodiments of the invention and beneficial effect thereof, will further describe in conjunction with embodiment.
Accompanying drawing explanation
Accompanying drawing is used to provide a further understanding of the present invention, and forms a part for specification, is used from explanation the present invention, but should not be construed as limiting the invention with embodiment one below.In the accompanying drawings,
Fig. 1 is the stereogram of the present invention first preferred embodiment 3D scanner;
Fig. 2 is the local structural graph of the 3D scanner shown in Fig. 1;
Fig. 3 is the stereogram of the present invention second preferred embodiment 3D scanner;
Fig. 4 is the local structural graph of the 3D scanner shown in Fig. 3.
Embodiment
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described in detail.Should be understood that, embodiment described herein, only for instruction and explanation of the present invention, is not limited to the present invention.
Refer to Fig. 1, Fig. 2, a kind of 3D scanner shown in the present invention first preferred embodiment, comprises mount pad 10, carrying disk 20, carrying disk driving mechanism 30 and scanning means 40.
Mount pad 10 comprises fixed head 11 and the column 12 being built up in fixed head 11 one end.In the present embodiment, fixed head 11 is rectangular slab, and column 12 is four prismatic stage bodies.
Carrying disk 20 being formed with some location holes 21, for coordinating localization tool (not shown), by localization tool, object to be scanned being fixed on carrying disk 20.In the present embodiment, carrying disk 20 is disk, and each annulus is equidistantly provided with some location holes 21 along camber line to the some annulus of carrying disk 20 surface distributed.In addition, some anchor point (not shown) or attaching the slug with anchor point of finding a view of finding a view can be offered in the surface of carrying disk 20, the irregular distribution of anchor point of finding a view, so, the convenient object distinguishing scanning of a surface is needed for spherical shape, to the differentiation on the surface of finding a view of regular article during scanning.
Carrying disk driving mechanism 30 comprises wobble drive assembly and rotary drive (not shown).Wobble drive assembly comprises supporting bracket 31, wobble drive motor 32, axis body 33, axis body supporting seat 34, gear train 35 and pallet 36.Supporting bracket 31 is slidably disposed on fixed head 11, and fixed head 11 can slide towards one end of column 12, and can hold and be fixed on fixed head 11 according to sliding into optional position.Wobble drive motor 32 is installed in supporting bracket 31.Axis body 33 comprises body shaft 331, be formed in body shaft 331 periphery and the guide plate 332 of proximate end face and protrude out the pivot pin (figure does not mark) in body shaft both ends of the surface respectively.Axis body 33 is arranged between two axis body supporting seats 34 rotationally and the pivot pin at axis body two ends stretches in corresponding axis body supporting seat respectively.On body shaft 331 side face, an installing space is formed, for the accommodating wobble drive electromechanics 312 be positioned at below axis body 33 between two guide plates 332.In the present embodiment, body shaft is for being semi-cylindrical in configuration, and end face is horizontal plane and it offers containing cavity, and bottom surface is arc surface, and guide plate is the arc being formed in bottom surface, body shaft periphery and adjacent end face.Axis body supporting seat 34 is relatively installed in supporting bracket 31, and the side that each axis body supporting seat 34 is connected with axis body 33 forms a step trough 341, in order to accommodating described guide plate 332.Further, each step trough 341 bottom surface is placed with two breach, is separately installed with return idler 342 in two breach, and return idler 342 coordinates the rotation of described guide plate 332 for supporting, so that guide plate 332 rotates.Gear train 35 comprises intermeshing driving gear (figure does not mark) and driven gear (scheming not mark), and driving gear is set in the rotating shaft end of wobble drive motor 32 regularly, and driven gear is formed on the outer peripheral face of body shaft 331.
Pallet 36 is fixed on axis body 33.In the present embodiment, pallet 36 is carried in the horizontal top surface of body shaft 331.End face on pallet 36 is provided with described carrying disk 20.So rotated by wobble drive motor 32, drive driving gear rotates, and driven gear is coordinated and rotates, and then drives axis body 33 to rotate, thus drive pallet 36, carrying disk 20 swing together.The angular range that carrying disk 20 swings is in face of relative level latter 55 °, and the angle [alpha] of forward rocking motion is as shown in Figure 1 0-55 °, and the angle beta swung backward is 0-55 °.Be appreciated that described body shaft 331 can be omitted, guide plate 332 is directly formed on pallet 36 bottom surface, and guide plate 332 both sides are formed with pivot pin and are inserted in on two axis body supporting seats 34.
Rotary drive is arranged on axis body 33 and the rotating shaft end of rotary drive is affixed through pallet 36 and carrying disk 20, rotates in order to drive carrying disk 20.The optional motor of rotary drive, is arranged in the containing cavity of body shaft end face.So, driven by rotary drive, the carrying disk 20 on pallet can be driven to rotate.
Scanning means 40 can be arranged on to rotation the top of column 12 up and down, in order to scan the object on carrying disk 20 to read data.Scanning means 40 comprises main body 41 and is arranged on camera lens 42, the light source 43 on an end face of main body, main body 41 one end can be connected to rotation on column 12, be appreciated that, junction is provided with swing angle adjusting mechanism (not shown), so that the adjustment of main body 41 rotation angle, relative level face adjustment angle a scope is that the other end of 0-to 90 ° of main body 41 stretches out towards carrying disk 20 direction, and the end face of this one end of stretching out is provided with described camera lens 42, light source 43.Camera lens 42 is two, and be arranged on main body 41 end face and contiguous both sides respectively, light source 43 is one, is arranged on the middle part of main body 41 end face, and in the present embodiment, light source adopts blue-light source.The axis of light source 43 lens barrel and the axis being parallel of camera lens 42 lens barrel.
3D scanner of the present invention comprises computer further, and computer connects the main body 41 of scanning means 40 by electric wire, and with the data analysis transmitted by main body 41, generate figure, simultaneous computer controls the operation of wobble drive assembly and rotary drive.
When using 3D scanner scanning object of the present invention, first object is stably arranged on carrying disk 20 by tool, then the angle of the relative ground of carrying disk 20 (corresponding fixed head 11 surface) beat is regulated, and regulate the angle of camera lens 42 towards carrying disk 20 of scanning means 40, then rotary drive and camera lens 42 is started, light source 43, rotary drive drive carrying disk 20 rotates a predetermined angle (as 30 °) to be stopped afterwards, two camera lenses 42 are ceaselessly taken pictures continuously, gather object to should the information of surface of position, and then stop after direction of rotation rotates identical predetermined angle, two camera lenses 42 are again repeatedly taken pictures and are gathered the information of this object at this position angle, process like this, realize carrying disk 20 object 360 ° rotation, object surface is fully scanned.Thus can realize, to the comprehensive multi-faceted accurate scanning of object, accomplishing that visual angle is without dead angle to object surface light.According to scanning needs, can corner size during scanning be regulated.
Further, through repeatedly repetition test and analysis, guaranteeing that light source 43 lens barrel axis extends to carrying disk 20 center, the pivot angle between carrying disk 20 surface and horizontal plane is made to be set to 55 °, namely the angle a that leans forward in relative level face is set to 55 ° or hypsokinesis angle β is set to 55 °), the axis of camera lens 42 and the angle a of horizontal plane are set to 30 °, can reach best scanning effect.Preferably, stem height is set to 60cm, and carrying disk 20 is 65cm to the vertical range of column.
Refer to Fig. 3, Fig. 4, at a kind of 3D scanner that the present invention first preferred embodiment improves further, further, because the driving power of rotary drive has the upper limit, namely the finite rate that carrying disk 20 rotates is driven, in order to improve carrying disk 20 rotating speed in a scan further, to save the time needed for whole scanning, therefore, supporting bracket 31 in embodiment one is replaced with the turntable structure be arranged on fixed head 11, turntable structure comprises base 61 and is arranged on the rotating disk 62 on base 61 rotationally, drive unit is provided with in base 61, the rotation of the circumference of 360 ° is done to drive described rotating disk 62, rotating disk 62 is installed the wobble drive assembly described in embodiment one, so, rotate by driving rotating disk 62, rotating disk 62 drives wobble drive assembly and rotary drive to rotate, rotary drive drives carrying disk 20 to rotate simultaneously, so, greatly can promote the rotating speed of carrying disk 20, save sweep time, increase work efficiency.In addition, in embodiment two, scanning means 40 is supported by the expansion link 63 being arranged on column 12 top, and in connected mode between scanning means 40 with expansion link 63 and embodiment one, scanning means 40 is identical with the connected mode on column 12 top, for can connect to rotation up and down.So, by adjustable telescopic rod 63 height, the height that can realize scanning means 40 regulates.In order to obtain better shooting effect, arrange as the angle in embodiment one, the pivot angle between carrying disk 20 surface and horizontal plane is set to 55 °, and the axis of camera lens 42 and the angle b of horizontal plane are set to 30 °.Further, by scanning means 40 be set to can sideshake regulate, make the side of scanning means 40 can relative level face angular adjustment, verify by experiment, the angle c that scanning means 40 side direction relative level face is formed is set to 30 °, there is best shooting effect.
To sum up, 3D scanner structure of the present invention is simple, can to the object of band scanning according to required angular turn scanning plane, and swingable object, realizes camera lens to the comprehensive multi-faceted accurate scanning of object simultaneously.
As long as without prejudice to the thought of the invention, combination in any is carried out to various different embodiment of the present invention, all should be considered as content disclosed by the invention; Within the scope of technical conceive of the present invention, technical scheme is carried out to the combination in any of the thought without prejudice to the invention that multiple simple modification and different embodiment are carried out, all should within protection scope of the present invention.
Claims (10)
1. a 3D scanner, comprise mount pad (10), carrying disk (20), carrying disk driving mechanism (30) and scanning means (40), it is characterized in that: mount pad (10) comprises fixed head (11) and the column (12) being built up in fixed head (11) one end, carrying disk driving mechanism (30) comprises wobble drive assembly and rotary drive, wobble drive assembly comprises supporting bracket (31), wobble drive motor (32), axis body (33), axis body supporting seat (34), gear train (35) and pallet (36), supporting bracket (31) is slidably disposed on fixed head (11), wobble drive motor (32) is installed in supporting bracket (31), axis body supporting seat (34) is two and is relatively installed in supporting bracket (31), axis body (33) is arranged between two axis body supporting seats (34) rotationally and the pivot pin at axis body two ends stretches to corresponding axis body supporting seat (34) respectively, gear train (35) is intermeshing driving gear and driven gear, driving gear is set in the rotating shaft end of wobble drive motor (32) regularly, driven gear is formed on the outer peripheral face of axis body (33), pallet (36) is affixed with axis body (33), rotary drive is arranged on that axis body (33) is upper and the rotating shaft end of rotary drive is affixed through pallet (36) and carrying disk (20), carrying disk (20) is rotatably arranged on pallet (36), move carrying disk (20) by wobble drive motor (32) rotating band to swing, scanning means (40) is arranged on the top of column (12), in order to scan the object of (20) on carrying disk with image data.
2. 3D scanner according to claim 1, is characterized in that: described carrying disk (20) surface distributed has some location holes (21).
3. 3D scanner according to claim 1, it is characterized in that: described axis body (33) comprises body shaft (331) and is formed in body shaft (331) periphery and the guide plate of proximate end face (332), body shaft (331) is for being semi-cylindrical in configuration, its end face is horizontal plane and it offers containing cavity, bottom surface is arc surface, guide plate (332) is for being formed in the arc of bottom surface, body shaft periphery and adjacent end face, the upper side be connected with axis body (33) of each axis body supporting seat (34) forms a step trough (341), in order to accommodating described guide plate (332).
4. 3D scanner according to claim 3, it is characterized in that: step trough described in each (341) bottom surface is placed with two breach, be separately installed with return idler (342) in two breach, return idler (342) coordinates the rotation of described guide plate (332) for supporting.
5. 3D scanner according to claim 3, is characterized in that: described rotary drive selects motor, is arranged in the containing cavity of body shaft (331) end face.
6. 3D scanner according to claim 1, it is characterized in that: described scanning means (40) comprises main body (41) and is arranged on camera lens (42), the light source (43) on an end face of main body, main body (41) one end can be connected to rotation on column (12), camera lens (42) is two, be arranged on main body (41) end face and contiguous both sides respectively, light source (43) is one, is arranged on the middle part of main body (41) end face.
7. 3D scanner according to claim 6, it is characterized in that: the axis of described light source (43) lens barrel and the axis being parallel of camera lens (42) lens barrel, light source (43) lens barrel axis extends to carrying disk (20) center, front and back pivot angle scope between carrying disk (20) surface and horizontal plane is respectively 0-55 °, and the axis of light source (43) lens barrel and the angle in horizontal plane direction are set to 30 °.
8. 3D scanner according to claim 6, it is characterized in that: comprise computer, described computer connects the main body (41) of scanning means (40) by electric wire, the data analysis of computer in order to be gathered by camera lens (42).
9. 3D scanner according to claim 1, it is characterized in that: described supporting bracket (31) replaces with the turntable structure be arranged on fixed head (11), turntable structure comprises base (61) and is arranged on the rotating disk (62) on base (61) rotationally, be provided with drive unit in base (61) to rotate in order to drive described rotating disk (62), the wobble drive assembly described in the upper installation of rotating disk (62).
10. 3D scanner according to claim 9, it is characterized in that: described scanning means (40) is supported by the expansion link (63) being arranged on column (12) top, scanning means (40) and expansion link (63) can before and after rotation and side direction rotation be connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610059748.8A CN105577973A (en) | 2016-01-28 | 2016-01-28 | 3d scanner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610059748.8A CN105577973A (en) | 2016-01-28 | 2016-01-28 | 3d scanner |
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| Publication Number | Publication Date |
|---|---|
| CN105577973A true CN105577973A (en) | 2016-05-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610059748.8A Pending CN105577973A (en) | 2016-01-28 | 2016-01-28 | 3d scanner |
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| CN (1) | CN105577973A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106166905A (en) * | 2016-08-29 | 2016-11-30 | 成都尽知致远科技有限公司 | A kind of Printing machine of band 3 D scanning system |
| CN106486172A (en) * | 2016-10-13 | 2017-03-08 | 河南龙璟科技有限公司 | A kind of rotary table of 3 D scanning system |
| CN107645619A (en) * | 2017-09-05 | 2018-01-30 | 深圳市玖品空气净化科技有限公司 | A kind of 3D scanning devices based on Internet of Things control |
| CN113596280A (en) * | 2021-08-16 | 2021-11-02 | 重庆市计量质量检测研究院 | Optical scanner error adjustment tool |
| CN116592235A (en) * | 2023-07-17 | 2023-08-15 | 沈阳宝隆飞机零部件有限公司 | Three-coordinate measuring device and method |
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| KR20130134818A (en) * | 2012-05-31 | 2013-12-10 | 주식회사 메디트 | Three dimensional scanning apparatus |
| CN203733132U (en) * | 2013-12-27 | 2014-07-23 | 中国刑事警察学院 | Two-dimensional and three-dimensional information extracting checking instrument for handwriting |
| KR20140115578A (en) * | 2013-03-21 | 2014-10-01 | 부산대학교 산학협력단 | 3-Dimension Scanner Platform and Scanning Device Having the Same |
| CN204007571U (en) * | 2014-06-06 | 2014-12-10 | 石家庄威森三维科技有限公司 | Spatial digitizer mobile device |
| CN205002743U (en) * | 2015-07-05 | 2016-01-27 | 南京创翼智能科技有限公司 | Low -cost desktop level 3D laser scanner |
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| KR20130134818A (en) * | 2012-05-31 | 2013-12-10 | 주식회사 메디트 | Three dimensional scanning apparatus |
| KR20140115578A (en) * | 2013-03-21 | 2014-10-01 | 부산대학교 산학협력단 | 3-Dimension Scanner Platform and Scanning Device Having the Same |
| CN203733132U (en) * | 2013-12-27 | 2014-07-23 | 中国刑事警察学院 | Two-dimensional and three-dimensional information extracting checking instrument for handwriting |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106166905A (en) * | 2016-08-29 | 2016-11-30 | 成都尽知致远科技有限公司 | A kind of Printing machine of band 3 D scanning system |
| CN106486172A (en) * | 2016-10-13 | 2017-03-08 | 河南龙璟科技有限公司 | A kind of rotary table of 3 D scanning system |
| CN107645619A (en) * | 2017-09-05 | 2018-01-30 | 深圳市玖品空气净化科技有限公司 | A kind of 3D scanning devices based on Internet of Things control |
| CN107645619B (en) * | 2017-09-05 | 2019-10-11 | 杨铭 | A kind of 3D scanning device based on Internet of Things control |
| CN113596280A (en) * | 2021-08-16 | 2021-11-02 | 重庆市计量质量检测研究院 | Optical scanner error adjustment tool |
| CN113596280B (en) * | 2021-08-16 | 2023-08-11 | 重庆市计量质量检测研究院 | Error adjusting tool for optical scanner |
| CN116592235A (en) * | 2023-07-17 | 2023-08-15 | 沈阳宝隆飞机零部件有限公司 | Three-coordinate measuring device and method |
| CN116592235B (en) * | 2023-07-17 | 2023-09-22 | 沈阳宝隆飞机零部件有限公司 | Three-coordinate measuring device and method |
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Application publication date: 20160511 |
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