CN207365924U - Pipe bending degree measuring device - Google Patents
Pipe bending degree measuring device Download PDFInfo
- Publication number
- CN207365924U CN207365924U CN201721524113.7U CN201721524113U CN207365924U CN 207365924 U CN207365924 U CN 207365924U CN 201721524113 U CN201721524113 U CN 201721524113U CN 207365924 U CN207365924 U CN 207365924U
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- China
- Prior art keywords
- ccd sensor
- measuring device
- pipe bending
- clamping piece
- bending degree
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Abstract
The utility model discloses a kind of pipe bending degree measuring device, including the first spill clamping piece and the second spill clamping piece, the speculum coaxially laid with the pipeline other end is provided with the baltimore groove of second clamping piece, autocollimator is stretched in the baltimore groove of the first clamping member, autocollimator includes being used to receive the optical module of the reflected light of convergence speculum and for the ccd sensor to being imaged the luminous point that optical module converges, the imaging minute surface of ccd sensor and the central shaft of the first clamping member are located along the same line, the signal output part of ccd sensor passes sequentially through image processing module, DSP microprocessors, communication module is connected with computer, memory is connected with DSP microprocessors.The both ends that speculum and autocollimator are fixed on pipeline using clamping piece by the utility model obtain pipe bending degree, acquisition data are not easy affected by environment, luminous point pixel on ccd sensor is obtained by computer, realizes the high-acruracy survey to the small drift angle of tubular articles.
Description
Technical field
The utility model belongs to curvature field of measuring technique, and in particular to a kind of pipe bending degree measuring device.
Background technology
Some special pipelines have relatively broad in industries such as precision instrument manufacture, aerospace, ship, weapon, tests
Application, such as reflection tube, engine air flue, gun barrel, gun barrel, parallel light tube.These pipelines are often used for conveying high-pressure
High-velocity fluid, exchange thermal energy, manufacture Precision Machinery Elements, can also manufacture pillar and machinery mount etc., then is processing or is using
During pipeline bending inevitably occurs, influence its normal use and even cause relatively large deviation, the particular tube that China uses at present
Road detection device is that artificial promote measures body, and carries scale, is manually observed and measured, surveyed with telescopic system in pipeline opening
The data obtained also need to manual processing, and measurement accuracy is low, and the degree of automation is low, it is difficult to which the modern high accuracy of satisfaction is wanted with what is automated
Ask.The bad adaptability of optical quadrant in common optical quadrant method and laser alignment position sensor method, it is easily managed interior
The interference of condition, and heavy workload；Laser alignment position sensor method will measure the geometric center of hot spot, when laser intensity not
Center of energy is not geometric center when uniformly, can cause larger error.
Utility model content
The technical problem to be solved by the utility model is to for above-mentioned deficiency of the prior art, there is provided a kind of pipeline
Curvature measuring device, it is novel in design rationally, and the both ends that speculum and autocollimator are fixed on to pipeline using clamping piece are obtained
Take pipe bending degree, obtain data and be not easy affected by environment, by installing ccd sensor additional to existing autocollimator, keep CCD
The imaging minute surface of sensor and the central shaft of the first clamping member are located along the same line, and realize to the small drift angle of tubular articles
High-acruracy survey, easy to promote the use of.
In order to solve the above technical problems, the technical solution adopted in the utility model is：Pipe bending degree measuring device, it is special
Sign is：Coordinate including the first spill clamping piece coordinated with pipeline one end coaxial transition and with pipeline other end coaxial transition
Second spill clamping piece, the spill mouth of the first clamping member and the spill mouth of the second clamping piece are oppositely arranged, the second clamping piece it is recessed
The speculum coaxially laid with the pipeline other end is provided with shape groove, autocollimator is stretched in the baltimore groove of the first clamping member,
The autocollimator includes the optical module for being used to receive the reflected light of convergence speculum and for being converged to described to optical module
The ccd sensor that poly- luminous point is imaged, the imaging minute surface of ccd sensor and the central shaft of the first clamping member are located at always
On line, the signal output part of ccd sensor passes sequentially through image processing module, DSP microprocessors, communication module and computer and connects
Connect, memory is connected with DSP microprocessors.
Above-mentioned pipe bending degree measuring device, it is characterised in that：The optical module includes being used to receive convergence reflection
The object lens of the reflected light of mirror, the light path to object lens transmission carry out semi-transparent semi-reflecting prism and the light of light are provided for the reflected light
Source, light source are arranged on the reflected light path of prism, and ccd sensor is arranged on the transmitted light path of prism, between light source and prism
Graticle is provided with, the imaging minute surface of object lens, prism and ccd sensor is coaxially laid.
Above-mentioned pipe bending degree measuring device, it is characterised in that：The ccd sensor is arranged on the focal plane of object lens
On.
Above-mentioned pipe bending degree measuring device, it is characterised in that：Described image processing module handles mould for FPGA data
Block.
Above-mentioned pipe bending degree measuring device, it is characterised in that：The communication module is led to for serial communication modular or USB
Believe module.
Above-mentioned pipe bending degree measuring device, it is characterised in that：The luminous point is crosshair luminous point.
The utility model has the following advantages compared with prior art：
1st, the measuring device that the utility model uses, by setting the first spill clamping piece to install sealing autocollimator, really
Protect the first spill clamping piece and autocollimator with pipeline one end coaxial transition to coordinate, by setting the second spill clamping piece to install
Seal speculum, it is ensured that the second spill clamping piece and speculum coordinate with pipeline other end coaxial transition, pass through autocollimator
The deflection of pipe ends is represented with the deflection angle of speculum, the curvature of pipeline is obtained, easy to promote the use of.
2nd, the measuring device that the utility model uses, improves autocollimator, ccd sensor is connected to optical module
Converge in light path, passed the dot pattern picture gathered with ccd sensor by image processing module, DSP microprocessors, communication module
Computer is transported to, reliable and stable, using effect is good.
In conclusion the utility model is novel in design rationally, speculum and autocollimator are fixed on by pipe using clamping piece
The both ends in road obtain pipe bending degree, obtain data be not easy it is affected by environment, by installing CCD sensings additional to existing autocollimator
Device, obtains luminous point pixel on ccd sensor by computer, realizes the high-acruracy survey to the small drift angle of tubular articles, grasp
It is convenient to make, strong applicability, easy to promote the use of.
Below by drawings and examples, the technical solution of the utility model is described in further detail.
Brief description of the drawings
Fig. 1 is the structure diagram for the measuring device that the utility model uses.
Fig. 2 is the structural representation of speculum, optical module and ccd sensor in the measuring device that the utility model uses
Figure.
Fig. 3 is ccd sensor, image processing module, DSP microprocessors and meter in the measuring device that the utility model uses
The circuit catenation principle block diagram of calculation machine.
Description of reference numerals:
1-pipeline；2-the first spill clamping piece；3-the second spill clamping piece；
4-speculum；5-autocollimator；6-optical module；
6-1-light source；6-2-graticle；6-3-object lens；
6-4-prism；7-ccd sensor；8-image processing module；
9-DSP microprocessors；10-communication module；11-computer；
12-memory.
Embodiment
As shown in Figure 1, Figure 2 and Figure 3, pipe bending degree measuring device described in the utility model, including with 1 one end of pipeline
The first spill clamping piece 2 that coaxial transition coordinates and the second spill clamping piece 3 coordinated with 1 other end coaxial transition of pipeline, the
The spill mouth of the spill mouth of one clamping piece 2 and the second clamping piece 3 is oppositely arranged, be provided with the baltimore groove of the second clamping piece 3 with
The speculum 4 that 1 other end of pipeline is coaxially laid, autocollimator 5 are stretched in the baltimore groove of the first clamping member 2, the auto-collimation
Instrument 5 includes the optical module 6 for being used to receive the reflected light of convergence speculum 4 and for the light converged to optical module 6
The ccd sensor 7 that point is imaged, the imaging minute surface of ccd sensor 7 are located at same straight line with the central shaft of the first clamping member 2
On, the signal output part of ccd sensor 7 passes sequentially through image processing module 8, DSP microprocessors 9, communication module 10 with calculating
Machine 11 connects, and memory 12 is connected with DSP microprocessors 9.
It should be noted that the setting one of the first spill clamping piece 2 is for one end of sealing pipeline 1, the external world is reduced certainly
Right light source, second, in order to clamp autocollimator 5, makes the central axis and pipeline 1 of autocollimator 5 to the influence inside pipeline 1
One end is coaxially laid, and autocollimator 5 is clamped by the first spill clamping piece 2, passes through the mechanical processing essence of the first spill clamping piece 2
Degree, to ensure the first spill clamping piece 2 and the uniformity of 5 axis of autocollimator, 1 one end axis of pipeline, autocollimator 5 after assembling
The parallel rays consistent with 1 one end axis of pipeline can be reflected, directional light can be propagated along the direction of 1 one end axis of pipeline, i.e., with
Reflected parallel light is as benchmark, to weigh curvature of the 1 one end axis of tested pipeline relative to reflected parallel light；Second female clip
The setting one of gripping member 3 is for the other end of sealing pipeline 1, reduces extraneous lamp to the influence inside pipeline 1, second, for
Clamping speculum 4, makes the central axis of speculum 4 coaxially be laid with the other end of pipeline 1, passes through the second spill clamping piece 3
The speculum 4 coordinated with autocollimator 5 is clamped in the other end of tested pipeline 1, the same processing with the second spill clamping piece 3
Precision ensures the second spill clamping piece 3 and speculum 4, the fit precision of the other end of pipeline 1, and then ensures the second female clip
3 axis of gripping member and 4 center line of speculum, pipeline 1 other end axis uniformity, utilize the inclined of speculum 4 and autocollimator 5
Corner represents the deflection bending at 1 both ends of pipeline；Autocollimator 5 is automatic by installing the ccd sensor 7 coordinated with optical module 6 additional
Dot pattern picture is obtained, the imaging minute surface and the central shaft of the first clamping member 2 of ccd sensor 7 are located along the same line, and reach CCD
Sensor 7 accurately obtains the purpose that optical module 6 converges light；The setting of image processing module 8 is in order to ccd sensor 7
The image of acquisition is pre-processed, and the data processing and identification of auxiliary DSP microprocessor 9, DSP microprocessors 9 pass through the mould that communicates
Block 10 is connected with computer 11, dot pattern picture is transmitted to computer 11, easy to the survey calculation in 11 later stage of computer.
In the present embodiment, the optical module 6 includes the object lens 6-3 of the reflected light for receiving convergence speculum 4, to thing
The light path of mirror 6-3 transmissions carries out semi-transparent semi-reflecting prism 6-4 and the light source 6-1 of light is provided for the reflected light, and light source 6-1 is set
Put on the reflected light path of prism 6-4, ccd sensor 7 is arranged on the transmitted light path of prism 6-4, light source 6-1 and prism 6-4
Between be provided with graticle 6-2, the imaging minute surface of object lens 6-3, prism 6-4 and ccd sensor 7 are coaxially laid.
In the present embodiment, the ccd sensor 7 is arranged on the focal plane of object lens 6-3.
It should be noted that ccd sensor 7, which is arranged on the focal plane of object lens 6-3, to be adopted in order to which ccd sensor 7 receives
Collect accurate luminous point, avoid luminous point from not converging, improve the measurement accuracy of optical spot centre.
In the present embodiment, described image processing module 8 is FPGA data processing module.
In the present embodiment, the communication module 10 is serial communication modular or usb communication module.
In the present embodiment, the luminous point is crosshair luminous point.
It should be noted that luminous point is easy to search optical spot centre using crosshair luminous point, crosshair luminous point horizontal zone is utilized
Domain is mutually perpendicular to take intersection point to obtain optical spot centre with vertical region.
When the utility model is used, the machining accuracy by the first spill clamping piece 2 and the second spill clamping piece 3 is true
The installation accuracy with autocollimator 5 and speculum 4 is protected, is emitted beam directive speculum using optical module 6 in autocollimator 5
4, the light sent in optical module 6 is reflected by speculum 4 is focused into a luminous point by CCD in autocollimator 5 through optical module 6
The imaging minute surface of sensor 7 receives, and two-dimension optical information is converted to one-dimensional electric signal output by ccd sensor 7, through image procossing
Module 8 is transmitted to the micro- places of DSP after carrying out sampling holding, gain control and analog-to-digital conversion pretreatment successively to the luminous point information of acquisition
Device 9 is managed, DSP microprocessors 9 utilize communication module 10 by image transmitting to computer 11, and then obtain the curvature of pipeline 1, survey
Accuracy of measurement is high, can be towards precision instrument manufacturing, aviation, ship, weaponry research and development and test industry, and price is low, measurement
As a result it is accurate, the similar product of alternative expensive foreign.
The above, is only the preferred embodiment of the utility model, not the utility model is imposed any restrictions, every
Any simple modification, change and the equivalent structure change made according to the utility model technical spirit to above example, still
Belong in the protection domain of technical solutions of the utility model.
Claims (6)
1. pipe bending degree measuring device, it is characterised in that：Including the first female clip coordinated with pipeline (1) one end coaxial transition
Gripping member (2) and the second spill clamping piece (3) coordinated with pipeline (1) other end coaxial transition, the spill mouth of the first clamping member (2)
It is oppositely arranged, is provided with the baltimore groove of the second clamping piece (3) and pipeline (1) other end with the spill mouth of the second clamping piece (3)
The speculum (4) coaxially laid, autocollimator (5) are stretched in the baltimore groove of the first clamping member (2), the autocollimator (5)
Including for receive convergence speculum (4) reflected light optical module (6) and for the luminous point that optical module (6) converges into
The ccd sensor (7) of row imaging, the imaging minute surface of ccd sensor (7) are located at always with the central shaft of the first clamping member (2)
On line, the signal output part of ccd sensor (7) passes sequentially through image processing module (8), DSP microprocessors (9), communication module
(10) it is connected with computer (11), memory (12) is connected with DSP microprocessors (9).
2. pipe bending degree measuring device described in accordance with the claim 1, it is characterised in that：The optical module (6) includes using
The semi-transparent semi-reflecting rib of object lens (6-3) in the reflected light for receiving convergence speculum (4), the light path progress to object lens (6-3) transmission
Mirror (6-4) and the light source (6-1) that light is provided for the reflected light, light source (6-1) are arranged on the reflected light path of prism (6-4)
On, ccd sensor (7) is arranged on the transmitted light path of prism (6-4), and graduation is provided between light source (6-1) and prism (6-4)
Plate (6-2), the imaging minute surface of object lens (6-3), prism (6-4) and ccd sensor (7) are coaxially laid.
3. pipe bending degree measuring device described in accordance with the claim 2, it is characterised in that：The ccd sensor (7) is arranged on
On the focal plane of object lens (6-3).
4. pipe bending degree measuring device described in accordance with the claim 1, it is characterised in that：Described image processing module (8) is
FPGA data processing module.
5. pipe bending degree measuring device described in accordance with the claim 1, it is characterised in that：The communication module (10) is serial ports
Communication module or usb communication module.
6. pipe bending degree measuring device described in accordance with the claim 1, it is characterised in that：The luminous point is crosshair luminous point.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721524113.7U CN207365924U (en) | 2017-11-15 | 2017-11-15 | Pipe bending degree measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721524113.7U CN207365924U (en) | 2017-11-15 | 2017-11-15 | Pipe bending degree measuring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207365924U true CN207365924U (en) | 2018-05-15 |
Family
ID=62343823
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721524113.7U Expired - Fee Related CN207365924U (en) | 2017-11-15 | 2017-11-15 | Pipe bending degree measuring device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207365924U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110986826A (en) * | 2019-12-20 | 2020-04-10 | 中国人民解放军63853部队 | Pipeline curvature detection method and device and storage medium |
-
2017
- 2017-11-15 CN CN201721524113.7U patent/CN207365924U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110986826A (en) * | 2019-12-20 | 2020-04-10 | 中国人民解放军63853部队 | Pipeline curvature detection method and device and storage medium |
| CN110986826B (en) * | 2019-12-20 | 2021-07-20 | 中国人民解放军63853部队 | Pipeline curvature detection method and device and storage medium |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180515 Termination date: 20201115 |
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| CF01 | Termination of patent right due to non-payment of annual fee |