CN111076757A - Indexing means of three-dimensional scanning for organism - Google Patents
Indexing means of three-dimensional scanning for organism Download PDFInfo
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- CN111076757A CN111076757A CN201910980980.9A CN201910980980A CN111076757A CN 111076757 A CN111076757 A CN 111076757A CN 201910980980 A CN201910980980 A CN 201910980980A CN 111076757 A CN111076757 A CN 111076757A
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- dimensional scanning
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D13/00—Component parts of indicators for measuring arrangements not specially adapted for a specific variable
- G01D13/02—Scales; Dials
- G01D13/12—Graduation
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/24—Measuring arrangements characterised by the use of optical techniques for measuring contours or curvatures
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- General Physics & Mathematics (AREA)
- Dental Tools And Instruments Or Auxiliary Dental Instruments (AREA)
Abstract
The invention discloses a three-dimensional scanning dividing device for a living body, which comprises a dividing lead screw shaft, a cylindrical roller bearing, an dividing disc, a supporting and adjusting device, an angle limiting device, a height adjusting device, a base supporting rod and a base. The device can carry out the stable support to the complicated curved surface of organism when treating the scanning organism and shoot the scanning, raises simultaneously and treats the scanning organism, makes the determinand carry out the rotation of specific angle and do not touch and treat the scanning organism, does not produce the damage to treating the scanning organism surface, reduces the influence of external condition to scanning object position among the experimentation, makes the three-dimensional scanning data that obtain more complete.
Description
Technical Field
The present invention relates to an index device, and more particularly, to an index device for three-dimensional scanning of a living body.
Background
The structural surface of an organism prototype is usually complex, an accurate three-dimensional model is difficult to establish through conventional measurement and modeling, and a reverse engineering technology is needed to reconstruct the organism model. The method is used for obtaining point cloud data on a curved surface by three-dimensional scanning of an organism, and is the first step of reverse engineering. Common three-dimensional scanning devices mainly include a handheld three-dimensional scanner and a photographing three-dimensional scanner. The photographing type three-dimensional scanner adopts white light raster scanning to project white light on a measured object, two cameras with included angles are used for synchronously taking images of the object, then the obtained images are subjected to calculation such as decoding and phase operation, and the three-dimensional coordinates of each pixel point of the object are obtained. The scanning mode has the advantages of high precision, long service life, high speed and the like. Because the surface of the living body has small physical characteristics, a photographing type three-dimensional scanner with high precision is selected for scanning. However, the photographing type three-dimensional scanner needs to calibrate a scanned object, has high requirements on a scanning environment, does not allow the scanned object and the surrounding environment to vibrate, needs to change a plurality of angles in the scanning process, scans by changing the position, the height and the shooting angle of the three-dimensional scanner in the conventional scanning method, and is complex and difficult to operate. However, if the object is directly and rotationally scanned, the calibration of the biological surface is difficult, the difficulty in splicing the subsequent data is increased, and meanwhile, the biological surface is easy to damage, so that the shape of the surface of the biological body is changed, and the scanning precision is greatly influenced. In addition, because the surface shape of the organism is specific, the organism can not be stably placed when the organism is placed on the workbench, and the bottom of the organism is contacted with the workbench, so that the data of the bottom of the organism is incomplete.
Disclosure of Invention
The purpose of the invention is as follows: the invention aims to provide an indexing device for three-dimensional scanning of a biological body, which can rotate and lift the biological body at a specific angle under the condition of not touching the biological body to be scanned, so that the calibration of the biological surface is accurate, the obtained data is complete, and the later data splicing is convenient.
The technical scheme is as follows: the invention relates to a three-dimensional scanning dividing device for a living body, which comprises a dividing lead screw shaft, a cylindrical roller bearing, a dividing disc, a supporting and adjusting device, an angle limiting device, a height adjusting device, a base supporting rod and a base.
Wherein, the arrangement of adjusting strutting arrangement on the graduated disk is that the double circle hexagonal is arranged, and the angle staggers 30, can stably support the organism of treating the scanning.
Wherein, adjust strutting arrangement including adjusting back shaft, hexagon nut and insert ball bearing, adjust back shaft and insert ball bearing base hole system interference fit, with hexagon nut screw-thread fit, connect on the graduated disk, insert ball bearing can treat the scanning organism curved surface and carry out the precision and laminate, can make and treat that the scanning organism is more stable must place on the graduated disk.
The height adjusting device comprises a baffle plate, a rotating handle, a cylindrical roller bearing, a worm wheel, a side plate and a support plate, wherein the baffle plate is connected with the support plate in an interference fit manner; the worm is fixed on the side plate through a cylindrical roller bearing, the cylindrical roller bearing is in interference fit with the worm base hole, and the cylindrical roller bearing is in transition fit with the side plate base shaft; the rotary handle is connected with the worm, and the rotary handle and the worm are in interference fit with each other through a base shaft; the side plate and the worm wheel are connected with the supporting plate; the worm wheel is matched with the indexing screw shaft through threads; the backup pad is connected on the base bracing piece, and this height adjusting device can realize treating the adjustment of scanning organism level, and the supplementary scanning shooting process assists focusing of three-dimensional scanner.
The angle limiting device comprises a rotating pin, a reset spring, a reset pin, a limiting hook and a dividing limiting disc, wherein the reset pin and the limiting hook are positioned on the dividing limiting disc, limiting columns matched with the limiting hook are uniformly distributed below the dividing disc, the limiting hook is connected to the dividing limiting disc through the rotating pin, one end of the reset spring is fixedly connected to the dividing limiting disc, the other end of the reset spring is connected to the limiting hook, rotation of a specific angle can be performed, multi-angle shooting of three-dimensional scanning is facilitated, and data splicing in the later period is facilitated; wherein, the return spring can also be replaced by a torque spring.
The use method of the dividing device for three-dimensional scanning of the living body comprises the following steps:
(1) the organism to be scanned is placed on the index plate (4), and the support adjusting device is adjusted to enable the organism to be scanned to be stably supported;
(2) the rotary dividing disc (4) adjusts the shooting angle;
(3) the height adjusting device (8) is used for adjusting the horizontal height to assist the focusing of the three-dimensional scanner;
(4) and (3) shooting the organism to be scanned, returning to the step (2) to continue shooting the organism to be scanned after shooting is finished until the organism to be scanned is shot by 360 degrees.
Has the advantages that: 1. when the biological body to be scanned is shot and scanned, the object to be detected can rotate at a specific angle without touching the biological body to be scanned, and the surface of the biological body to be scanned is not damaged; 2. the complex curved surface of the organism can be stably supported, and the influence of external conditions on the position of the scanned object in the experimental process is reduced; 3. the organism to be scanned can be lifted, complete three-dimensional scanning data can be obtained, and later-stage data splicing is facilitated.
Drawings
FIG. 1 is a front elevational view, in full section, of the present invention;
FIG. 2 is a top view of the indexing disk;
fig. 3 is a bottom view of the indexing disk;
FIG. 4 is a cross-sectional view of the height adjustment device;
fig. 5 is a schematic structural view of the rotation limiting device.
Detailed Description
As shown in fig. 1 and 2, an index device for three-dimensional scanning of a living body includes: the indexing screw shaft 1, the cylindrical roller bearing 2, the dividing disc 4, the supporting and adjusting device, the angle limiting device 7, the height adjusting device 8, the base supporting rod 9 and the base 10, wherein the dividing disc 4 is arranged on the indexing screw shaft 1 through the cylindrical roller bearing 2, the indexing screw shaft 1 is movably connected with the height adjusting device 8, the height adjusting device 8 is fixedly connected to the base 10 through the base supporting rod 9, the supporting and adjusting device is positioned on the dividing disc 4, the adjusting and supporting devices on the dividing disc 4 are arranged in a double-ring hexagonal arrangement mode, the angles are staggered by 30 degrees, the adjusting and supporting device comprises an adjusting supporting shaft 6, a hexagonal nut 5 and an outer spherical ball bearing 3, the adjusting supporting shaft 6 is in interference fit with a base hole of the outer spherical ball bearing 3, through screw-thread fit with the hexagonal nut 5, the outer spherical surface ball bearing 3 is precisely attached to the biological curved surface, so that the biological body to be scanned is stably supported.
As shown in fig. 1 and 4, the height adjusting device 8 includes a baffle plate 11, a rotating handle 12, a cylindrical roller bearing 13, a worm 14, a worm wheel 15, a side plate 16, and a support plate 17, wherein the baffle plate 11 is connected with the support plate 17, and the two are in interference fit; the worm 14 is fixed on the side plate 16 through a cylindrical roller bearing 13, the cylindrical roller bearing 13 is in interference fit with a base hole of the worm 14, and the cylindrical roller bearing 13 is in transition fit with a base shaft of the side plate 16; the rotary handle 12 is connected with the worm 14, and the rotary handle and the worm are in interference fit with each other through a base shaft; the side plate 16, the worm wheel 15 and the support plate 17 are mutually connected; the worm wheel 15 is matched with the indexing screw shaft 1 through threads; the support plate 17 is attached to the base support rod 9.
As shown in fig. 3 and 5, the angle limiting device 7 comprises a rotating pin 18, a reset spring 19, a reset pin 20, a limiting hook 21 and an indexing limiting disc 22, wherein the reset pin 20 and the limiting hook 21 are positioned on the indexing limiting disc 22, 6 limiting columns matched with the limiting hook 21 are arranged below the indexing disc 4, the spacing intervals between every two limiting columns are 60 degrees, the limiting hook 21 is connected to the indexing limiting disc 22 through the rotating pin 18, one end of the reset spring 19 is fixedly connected to the indexing limiting disc 22, and the other end of the reset spring is connected to the limiting hook 21.
The method comprises the following steps:
(1) firstly, placing a processed organism to be scanned on an index plate 4, rotating a nut 5, and adjusting the height of an adjusting support shaft 6 to ensure that an outer spherical ball bearing 3 is precisely attached to the curved surface of the organism to be scanned, and an unused adjusting support device is retracted into the index plate 4 to realize the stable support of the organism to be scanned;
(2) secondly, the indexing plate 4 is rotated to adjust the shooting angle, when the indexing plate 4 is rotated, the limiting hook 21 is pushed to rotate around the rotating shaft 18, the limiting upright post structure passes through the limiting hook 21, the reset spring 19 applies force to the limiting hook 21 to enable the limiting hook 21 to return to the initial position, and the reset pin 20 blocks the limiting hook 21 to avoid reset deviation caused by inertia of the limiting hook 21;
(3) thirdly, adjusting the horizontal height by the height adjusting device 8, driving the worm 14 by rotating the handle 12, driving the worm wheel 15 to rotate by the worm 14, designing an inner thread in an inner hole of the worm wheel 15, and realizing the horizontal height movement by the worm wheel 15 and the indexing screw shaft 1 through thread matching to assist the focusing of the three-dimensional scanner;
(4) and (3) shooting the organism to be scanned, and returning to the step (2) to adjust the shooting angle to continue shooting until the organism to be scanned finishes shooting at 360 degrees after shooting.
Claims (6)
1. An indexing device for three-dimensional scanning of a living body, comprising: graduation screw shaft (1), cylindrical roller bearing (2), graduated disk (4), support adjusting device, angle stop device (7), height adjusting device (8), base bracing piece (9), base (10), install on graduation screw shaft (1) graduated disk (4) through cylindrical roller bearing (2), graduation screw shaft (1) and height adjusting device (8) swing joint, height adjusting device (8) are connected to base (10) through base bracing piece (9) admittedly, support adjusting device is located graduated disk (4).
2. Indexing device for the three-dimensional scanning of living beings according to claim 1, characterized in that the arrangement of the adjusting and supporting means on the indexing disk (4) is a double-turn hexagonal arrangement, angularly staggered by 30 °.
3. The indexing device for three-dimensional scanning of living organisms according to claim 1 or 2, wherein the adjusting and supporting device comprises an adjusting and supporting shaft (6), a hexagonal nut (5) and an outer spherical ball bearing (3), the adjusting and supporting shaft (6) is in interference fit with a base hole of the outer spherical ball bearing (3) and is in threaded fit with the hexagonal nut (5).
4. The indexing device for three-dimensional scanning of living organisms according to claim 1, wherein the height adjusting device (8) comprises a baffle plate (11), a rotating handle (12), a cylindrical roller bearing (13), a worm (14), a worm wheel (15), a side plate (16) and a support plate (17), wherein the baffle plate (11) is connected with the support plate (17) in an interference fit manner; the worm (14) is fixed on the side plate (16) through a cylindrical roller bearing (13), the cylindrical roller bearing (13) is in interference fit with a base hole of the worm (14), and the cylindrical roller bearing (13) is in transition fit with a base shaft of the side plate (16); the rotary handle (12) is connected with the worm (14), and the rotary handle and the worm are in interference fit with each other through a base shaft; the side plate (16), the worm wheel (15) and the support plate (17) are connected with each other; the worm wheel (15) is matched with the indexing screw shaft (1) through threads; the supporting plate (17) is connected to the base supporting rod (9).
5. The dividing apparatus for three-dimensional scanning of living beings according to claim 1, characterized in that, the angle limiting device (7) includes rotatory pin (18), reset spring (19), reset pin (20), spacing hook (21), division spacing dish (22), reset pin (20) and spacing hook (21) are located division spacing dish (22), the equipartition has the spacing post of cooperating with spacing hook (21) under the graduated disk (4), spacing hook (21) are connected on division spacing dish (22) through rotatory pin (18), reset spring (19) one end is linked firmly on division spacing dish (22), the other end is connected on spacing hook (21).
6. Indexing device for the three-dimensional scanning of living beings according to claim 5, characterised in that the return spring (19) is an extension spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910980980.9A CN111076757A (en) | 2019-10-16 | 2019-10-16 | Indexing means of three-dimensional scanning for organism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910980980.9A CN111076757A (en) | 2019-10-16 | 2019-10-16 | Indexing means of three-dimensional scanning for organism |
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| Publication Number | Publication Date |
|---|---|
| CN111076757A true CN111076757A (en) | 2020-04-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910980980.9A Pending CN111076757A (en) | 2019-10-16 | 2019-10-16 | Indexing means of three-dimensional scanning for organism |
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Citations (6)
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|---|---|---|---|---|
| CN104354019A (en) * | 2014-11-13 | 2015-02-18 | 无锡成诺精密机械有限公司 | Worm adjusting device for machine tool |
| CN105058162A (en) * | 2015-08-14 | 2015-11-18 | 重庆市双恩农机制造有限公司 | Index location mechanism of grass mowing disc of farm machinery |
| CN206959739U (en) * | 2017-06-05 | 2018-02-02 | 昆山海域科技有限公司 | A kind of 3-D scanning measuring device |
| US20190086439A1 (en) * | 2017-09-21 | 2019-03-21 | Institute Of Geology And Geophysics Chinese Academy Of Sciences | Dynamic testing device suitable for drilling tool attitude measurement module |
| CN208759389U (en) * | 2018-08-06 | 2019-04-19 | 无锡奥特维科技股份有限公司 | A kind of angle limit mechanism and rotating device |
| CN209162196U (en) * | 2018-11-22 | 2019-07-26 | 辽宁工业大学 | A kind of laser, which melts, covers metallic matrix indexing means |
-
2019
- 2019-10-16 CN CN201910980980.9A patent/CN111076757A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104354019A (en) * | 2014-11-13 | 2015-02-18 | 无锡成诺精密机械有限公司 | Worm adjusting device for machine tool |
| CN105058162A (en) * | 2015-08-14 | 2015-11-18 | 重庆市双恩农机制造有限公司 | Index location mechanism of grass mowing disc of farm machinery |
| CN206959739U (en) * | 2017-06-05 | 2018-02-02 | 昆山海域科技有限公司 | A kind of 3-D scanning measuring device |
| US20190086439A1 (en) * | 2017-09-21 | 2019-03-21 | Institute Of Geology And Geophysics Chinese Academy Of Sciences | Dynamic testing device suitable for drilling tool attitude measurement module |
| CN208759389U (en) * | 2018-08-06 | 2019-04-19 | 无锡奥特维科技股份有限公司 | A kind of angle limit mechanism and rotating device |
| CN209162196U (en) * | 2018-11-22 | 2019-07-26 | 辽宁工业大学 | A kind of laser, which melts, covers metallic matrix indexing means |
Non-Patent Citations (1)
| Title |
|---|
| 许志龙等: "复杂曲面反求工程的数据采集与处理", 《机电产品开发与创新》 * |
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Application publication date: 20200428 |
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