CN110793442A - Combined type measuring device for three-dimensional coordinate measurement - Google Patents
Combined type measuring device for three-dimensional coordinate measurement Download PDFInfo
- Publication number
- CN110793442A CN110793442A CN201911080502.9A CN201911080502A CN110793442A CN 110793442 A CN110793442 A CN 110793442A CN 201911080502 A CN201911080502 A CN 201911080502A CN 110793442 A CN110793442 A CN 110793442A
- Authority
- CN
- China
- Prior art keywords
- camera
- support
- line laser
- substrate
- measuring head
- 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.)
- Pending
Links
- 238000005259 measurement Methods 0.000 title claims abstract description 46
- 239000000758 substrate Substances 0.000 claims abstract description 25
- 239000002131 composite material Substances 0.000 claims description 5
- 230000003287 optical effect Effects 0.000 abstract description 6
- 238000000034 method Methods 0.000 description 11
- 238000011960 computer-aided design Methods 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 238000000691 measurement method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
Classifications
-
- 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
- G01B11/002—Measuring arrangements characterised by the use of optical techniques for measuring two or more coordinates
- G01B11/005—Measuring arrangements characterised by the use of optical techniques for measuring two or more coordinates coordinate measuring machines
-
- 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
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Length Measuring Devices By Optical Means (AREA)
Abstract
The invention relates to a combined type measuring device for three-dimensional coordinate measurement, which is characterized in that: the measuring head structure comprises a substrate, wherein a contact measuring head support is fixedly arranged on the front surface of the substrate, and a contact measuring head is sleeved on the contact measuring head support; a camera support is fixedly mounted on the left side of the back surface of the substrate, a camera is fixedly mounted on the camera support, a lens is mounted on the camera, a line laser support is fixedly mounted on the right side of the back surface of the substrate, and a line laser transmitter is fixedly mounted on the line laser support; the basic top end is provided with a tool shank clamping part. The invention has scientific and reasonable design, integrates the contact measuring head and the optical measurement into a whole, fully exerts the advantages of two sensors, can realize the rapid, high-precision and complete measurement of complex workpieces and improves the measurement efficiency.
Description
Technical Field
The invention belongs to the technical field of workpiece measurement, relates to a measuring device, and particularly relates to a combined type measuring device for three-dimensional coordinate measurement.
Background
The existing widely applied method for acquiring the surface data of the object mainly comprises two methods: the optical contact type measuring method and the non-contact type measuring method have the advantages and disadvantages and the application range: 1) the contact measurement method has high measurement precision, but the measurement efficiency is lower; 2) the non-contact measurement technology can quickly acquire dense point cloud data, and the digitization efficiency is greatly improved.
However, most optical measurement methods have low measurement accuracy, the measurement process is easily affected by environmental factors such as illumination, and the geometric characteristics inside or shielded by an object cannot be measured, which causes incompleteness of measurement data, so that the optical measurement cannot meet the application requirement of high accuracy.
With the development of modern industry, on one hand, the requirements for flexibility and intelligence of the measurement process are continuously improved, and a single sensor cannot meet the measurement requirements for high precision and high efficiency. On the other hand, the complexity of the workpiece is higher and higher, and a single sensor is difficult to obtain complete surface information. The self limitation of the contact and non-contact measuring methods limits the application of the contact and non-contact measuring methods in practical engineering, if a plurality of different measuring sensors are integrated together, and advantages are complemented by using different measuring methods, the flexibility of the measuring system can be greatly improved, the measuring system is not limited by single digital equipment any more, and high-efficiency and high-precision measurement is realized.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide a composite measuring device for three-dimensional coordinate measurement, which gives full play to the advantages of two sensors, overcomes the limitation of a single sensor and can realize the rapid, high-precision and complete measurement of complex workpieces.
The technical problem to be solved by the invention is realized by the following technical scheme:
a combined measuring device for three-dimensional coordinate measurement is characterized in that: the measuring head structure comprises a substrate, wherein a contact measuring head support is fixedly arranged on the front surface of the substrate, and a contact measuring head is sleeved on the contact measuring head support; a camera support is fixedly mounted on the left side of the back surface of the substrate, a camera is fixedly mounted on the camera support, a lens is mounted on the camera, a line laser support is fixedly mounted on the right side of the back surface of the substrate, and a line laser transmitter is fixedly mounted on the line laser support; the basic top end is provided with a tool shank clamping part.
And, be provided with rectangular hole on the line laser support, line laser emitter can install in the optional position in line laser support rectangular hole, is convenient for the regulation of line laser generator and camera interval.
Moreover, the camera support is provided with the arc-shaped long hole, so that the camera can be mounted on the camera support at different angles, and the relative angle between the camera and the line laser emitter can be conveniently adjusted.
And the bottom ends of the camera and the line laser emitter are higher than the substrate.
Moreover, the substrate is a double-U-shaped substrate.
The invention has the advantages and beneficial effects that:
1. according to the combined type measuring device for three-dimensional coordinate measurement, the camera and the line laser transmitter are respectively arranged at two ends of the substrate, the distance is relatively long, and the possibility that a line-structured light vision system formed by the camera and the line laser transmitter interferes with an object during contact type measurement can be reduced; the contact measuring head and the line structured light vision sensor are integrated into a whole, the advantages of high precision of the contact measuring head and rapidity of optical measurement are fully exerted, advantage complementation is formed, and accurate, efficient and complete measurement of complex objects can be realized.
2. The invention relates to a combined type measuring device for three-dimensional coordinate measurement.A line laser bracket is provided with a long hole, and a line laser transmitter can be arranged in any position of the long hole of the line laser bracket, so that the distance between the line laser generator and a camera can be conveniently adjusted, and the combined type measuring device is suitable for measuring workpieces with different specifications.
3. The combined type measuring device for three-dimensional coordinate measurement is characterized in that the camera support is provided with the arc-shaped long hole, so that the camera can be mounted on the camera support at different angles, the relative angle between the camera and the line laser transmitter can be conveniently adjusted, and the combined type measuring device is suitable for measuring workpieces with different specifications.
4. According to the combined type measuring device for three-dimensional coordinate measurement, the bottom ends of the camera and the line laser transmitter are higher than the base plate, so that the camera or the line laser transmitter can be effectively prevented from interfering with a workpiece during contact type measurement, and effective operation is guaranteed.
5. The combined type measuring device for measuring the three-dimensional coordinate is characterized in that the base plate is a double-U-shaped base plate, the cutter handle clamping part on the base plate and the main shaft of the numerical control machine tool need to be fixedly installed when the combined type measuring device works, and the double-U-shaped structure can provide enough space for installation, is convenient to operate and improves the connection firmness.
6. The invention provides a new idea for the reverse engineering technology, so that the measurement process is more flexible and intelligent. Under the condition that a CAD (computer-aided design) model of a measured object is unknown, a linear structured light vision system can be used for rapidly scanning the object to obtain dense 3D (three-dimensional) data of the surface of the object, and geometric information of the object is extracted from the vision scanning data and used for guiding a high-precision contact measuring head to perform high-precision contact measurement on the object; under the condition of a known workpiece CAD model, a linear structured light vision system can be used for quickly scanning an object, and then a contact type measuring head is used for retesting an area with higher precision requirement or a vision measurement blind area.
Drawings
FIG. 1 is a front view of the present invention;
FIG. 2 is a rear view of FIG. 1;
FIG. 3 is a perspective view of the present invention;
FIG. 4 is a left side view of FIG. 1;
fig. 5 is a sectional view taken along line a-a of fig. 4.
Description of the reference numerals
The laser measuring device comprises a 1-contact measuring head, a 2-lens, a 3-camera, a 4-knife handle clamping part, a 5-double U-shaped substrate, a 6-line laser emitter, a 7-contact measuring head support, an 8-line laser support, a 9-camera support, a 10-strip hole and an 11-arc-shaped long hole.
Detailed Description
The present invention is further illustrated by the following specific examples, which are intended to be illustrative, not limiting and are not intended to limit the scope of the invention.
A combined measuring device for three-dimensional coordinate measurement is characterized in that: the measuring head structure comprises a substrate, wherein a contact measuring head support 7 is fixedly arranged on the front surface of the substrate, and a contact measuring head 1 is sleeved on the contact measuring head support; a camera support 9 is fixedly installed on the left side of the back face of the substrate, a camera 3 is fixedly installed on the camera support, a lens 2 is installed on the camera, a line laser support 8 is fixedly installed on the right side of the back face of the substrate, and a wired laser transmitter 6 is fixedly installed on the line laser support; the top end of the base is provided with a cutter handle clamping part 4, the camera and the line laser transmitter are respectively arranged at two ends of the substrate, the distance is relatively long, and the possibility that a line-structured light vision system formed by the camera and the line laser transmitter interferes with an object during contact measurement can be reduced; the contact measuring head and the line structured light vision sensor are integrated into a whole, the advantages of high precision of the contact measuring head and rapidity of optical measurement are fully exerted, advantage complementation is formed, and accurate, efficient and complete measurement of complex objects can be realized.
The line laser support is provided with a long hole 10, and the line laser emitter can be installed in any position of the long hole of the line laser support, so that the distance between the line laser generator and the camera can be adjusted conveniently, and the line laser emitter is suitable for measuring workpieces of different specifications.
Be provided with arc slot hole 11 on the camera support, can make the installation of camera different angles on the camera support, the regulation of the camera of being convenient for and line laser emitter relative angle is applicable to the measurement of different specification work pieces.
The bottom of camera and line laser emitter is higher than the base plate, can prevent effectively that camera or line laser emitter from producing the interference with the work piece when carrying out contact measurement, guarantees effective operation.
The base plate is two U type base plates 5, need carry out fixed mounting with the main shaft of handle of a knife clamping part on the base plate and digit control machine tool when the during operation, and two U type structures can provide sufficient space for the installation, and the operation of being convenient for improves the firm in connection nature.
The invention provides a new idea for the reverse engineering technology, so that the measurement process is more flexible and intelligent. Under the condition that a CAD (computer-aided design) model of a measured object is unknown, a linear structured light vision system can be used for rapidly scanning the object to obtain dense 3D (three-dimensional) data of the surface of the object, and geometric information of the object is extracted from the vision scanning data and used for guiding a high-precision contact measuring head to perform high-precision contact measurement on the object; under the condition of a known workpiece CAD model, a linear structured light vision system can be used for quickly scanning an object, and then a contact type measuring head is used for retesting an area with higher precision requirement or a vision measurement blind area.
Although the embodiments of the present invention and the accompanying drawings are disclosed for illustrative purposes, those skilled in the art will appreciate that: various substitutions, changes and modifications are possible without departing from the spirit and scope of the invention and the appended claims, and therefore the scope of the invention is not limited to the disclosure of the embodiments and the accompanying drawings.
Claims (5)
1. A combined measuring device for three-dimensional coordinate measurement is characterized in that: the measuring head structure comprises a substrate, wherein a contact measuring head support is fixedly arranged on the front surface of the substrate, and a contact measuring head is sleeved on the contact measuring head support; a camera support is fixedly mounted on the left side of the back surface of the substrate, a camera is fixedly mounted on the camera support, a lens is mounted on the camera, a line laser support is fixedly mounted on the right side of the back surface of the substrate, and a line laser transmitter is fixedly mounted on the line laser support; the basic top end is provided with a tool shank clamping part.
2. A composite measuring device for three dimensional coordinate measurements as defined in claim 1 wherein: the line laser support is provided with a long hole, and the line laser emitter can be arranged in any position of the long hole of the line laser support, so that the distance between the line laser generator and the camera can be adjusted conveniently.
3. A composite measuring device for three dimensional coordinate measurements as defined in claim 1 wherein: the camera support is provided with the arc-shaped long hole, so that the camera can be mounted on the camera support at different angles, and the relative angle between the camera and the line laser emitter can be conveniently adjusted.
4. A composite measuring device for three dimensional coordinate measurements as defined in claim 1 wherein: the bottom ends of the camera and the line laser emitter are higher than the substrate.
5. A composite measuring device for three dimensional coordinate measurements as defined in claim 1 wherein: the substrate is a double-U-shaped substrate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911080502.9A CN110793442A (en) | 2019-11-07 | 2019-11-07 | Combined type measuring device for three-dimensional coordinate measurement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911080502.9A CN110793442A (en) | 2019-11-07 | 2019-11-07 | Combined type measuring device for three-dimensional coordinate measurement |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110793442A true CN110793442A (en) | 2020-02-14 |
Family
ID=69443190
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911080502.9A Pending CN110793442A (en) | 2019-11-07 | 2019-11-07 | Combined type measuring device for three-dimensional coordinate measurement |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110793442A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111928776A (en) * | 2020-07-31 | 2020-11-13 | 中国航空工业集团公司济南特种结构研究所 | Multi-sensor-based non-contact online measurement system and method for numerical control machine tool |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101000499A (en) * | 2006-12-18 | 2007-07-18 | 浙江大学 | Contour machining method and system based on multi-sensor integral measuring |
| CN202188832U (en) * | 2011-06-22 | 2012-04-11 | 思瑞测量技术(深圳)有限公司 | Combined type laser scanning probe |
| CN106643551A (en) * | 2016-12-07 | 2017-05-10 | 苏州笛卡测试技术有限公司 | Blade shape rapid scanning device and method |
| CN207223290U (en) * | 2017-10-17 | 2018-04-13 | 广汽丰田汽车有限公司 | A kind of floor welded fixture for eliminating burr |
| CN109533131A (en) * | 2017-09-21 | 2019-03-29 | 天津都市玛自行车有限公司 | Shelf after a kind of intelligent bicycle |
| CN210922508U (en) * | 2019-11-07 | 2020-07-03 | 天津大学 | Combined type measuring device for three-dimensional coordinate measurement |
-
2019
- 2019-11-07 CN CN201911080502.9A patent/CN110793442A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101000499A (en) * | 2006-12-18 | 2007-07-18 | 浙江大学 | Contour machining method and system based on multi-sensor integral measuring |
| CN202188832U (en) * | 2011-06-22 | 2012-04-11 | 思瑞测量技术(深圳)有限公司 | Combined type laser scanning probe |
| CN106643551A (en) * | 2016-12-07 | 2017-05-10 | 苏州笛卡测试技术有限公司 | Blade shape rapid scanning device and method |
| CN109533131A (en) * | 2017-09-21 | 2019-03-29 | 天津都市玛自行车有限公司 | Shelf after a kind of intelligent bicycle |
| CN207223290U (en) * | 2017-10-17 | 2018-04-13 | 广汽丰田汽车有限公司 | A kind of floor welded fixture for eliminating burr |
| CN210922508U (en) * | 2019-11-07 | 2020-07-03 | 天津大学 | Combined type measuring device for three-dimensional coordinate measurement |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111928776A (en) * | 2020-07-31 | 2020-11-13 | 中国航空工业集团公司济南特种结构研究所 | Multi-sensor-based non-contact online measurement system and method for numerical control machine tool |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103433810B (en) | Complicated curve surface normal vector on-machine detection device and method | |
| CN106441033B (en) | The detection device and detection method of heavy section three-dimensional bending part | |
| CN201653373U (en) | Triaxial non-contact image measuring system | |
| CN108827187B (en) | A kind of measuring three-dimensional profile system | |
| CN103335602B (en) | A kind of light veil type axial workpiece multi-work-station multiparameter high-precision measuring method and device | |
| CN202599371U (en) | Measuring device based on integration of vision sensor and three-coordinate measuring machine | |
| CN101839700A (en) | Non-contact image measuring system | |
| CN102175182A (en) | Structured light three-dimensional measurement device and complete point cloud data acquisition method thereof | |
| CN109405755B (en) | Large-size pipe plate aperture and pitch measuring device and measuring method | |
| CN103481122A (en) | Contact measurement error compensation method oriented to freeform surface and compensation system | |
| CN204214423U (en) | A kind of sleeve part length self-operated measuring unit | |
| CN107726980B (en) | Calibration method of linear laser displacement sensor based on four-axis measuring machine | |
| CN110345865A (en) | A kind of steel construction digitizing detection method based on 3-D scanning | |
| CN110672029A (en) | Flexible measuring system of large-scale complex curved surface three-dimensional shape robot | |
| CN101782374A (en) | Gear and moulding structure outline measuring method based on template near-field light projection scanning | |
| CN111421226B (en) | Pipe identification method and device based on laser pipe cutting equipment | |
| CN113218330A (en) | PCL (polycaprolactone) -library-based large-scale thin-wall component measuring and data processing method | |
| CN112648938A (en) | Distributed precision measurement device and method for spatial attitude of large-size flat plate type mold | |
| CN210922508U (en) | Combined type measuring device for three-dimensional coordinate measurement | |
| CN203605907U (en) | Part detection system | |
| CN110793442A (en) | Combined type measuring device for three-dimensional coordinate measurement | |
| CN108088389B (en) | Rotary double-laser profile measuring method, storage device and measuring device | |
| CN105466352A (en) | Non-contact curved surface scanning system | |
| CN110864624A (en) | One-machine dual-purpose measuring instrument | |
| CN110057338A (en) | A kind of adaptive setting method of Workpiece zero point based on duplex measurement |
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 |