CN208399978U - A kind of positioning measuring device - Google Patents
A kind of positioning measuring device Download PDFInfo
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- CN208399978U CN208399978U CN201820388725.6U CN201820388725U CN208399978U CN 208399978 U CN208399978 U CN 208399978U CN 201820388725 U CN201820388725 U CN 201820388725U CN 208399978 U CN208399978 U CN 208399978U
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Abstract
This application discloses a kind of positioning measuring device, which is located on numerically-controlled machine tool, comprising: for placing the motion workbench of workpiece for measurement；The line-scan digital camera being fixed on above motion workbench；Image for shooting line-scan digital camera is handled, and obtains the Circularhole diameter of workpiece for measurement, determines the processor of coordinate information of the circular hole hole heart in workpiece for measurement coordinate system；Work pieces process component in the coordinate information of coordinate information and workpiece for measurement in NC Machine Tools Coordinate system in workpiece for measurement coordinate system, determining coordinate information of the circular hole hole heart in NC Machine Tools Coordinate system according to the circular hole hole heart and being processed to workpiece for measurement.Above-mentioned positioning measuring device provided by the present application overcomes the deficiency of traditional artificial operation, it is high that the precision of image in a scanning direction is obtained using line-scan digital camera, the workpiece picture in industrial production can be really fed back, improves measurement and positioning accuracy, and structure is simple, locating speed is fast.
Description
Technical field
The utility model relates to vision positioning technical fields, more particularly to a kind of positioning measuring device.
Background technique
Currently, industrial products are many kinds of, in the production process of industrial products, all may relate to automatic positioning.Such as
It requires each part privileged site such as to process in punching or automatic production line on part.But there are also part processing factories at present
Also all using traditional method that is positioned manually, there are many disadvantages for the method, such as position single product, detection workman eye for a long time
Eyeball is easy fatigue, and is easy to be influenced by mood, and positioning result is difficult to ensure；Each worker is to of the same race by positioning accuracy
Judgment criteria has slight floating, and localization criteria is inconsistent, therefore it is difficult to ensure that high quality product；The speed phase being positioned manually
To very slowly, one product of accurate positioning just takes a long time, and the tuning on-line need for being unable to satisfy high-speed production lines are positioned manually
It asks.
With the development of science and technology, the requirement of market and user to the measure of precision and quality of product is higher and higher, it is traditional
The method of being positioned manually is no longer satisfied the demand of user, therefore begins to use area array cameras to measure and position.And single face
The charge coupled cell (Charge-coupled Device, CCD) of battle array is due to the restriction by production technology, for industry
The demand in measurement and market is generally all extremely difficult to.In order to reach very high resolving power, it usually needs multiple area array cameras cooperations
It uses, this can make system-computed more complex again.
Utility model content
In view of this, the purpose of this utility model is to provide a kind of positioning measuring device, structure is simple, locating speed
Fastly, positioning accuracy is high.Its concrete scheme is as follows:
A kind of positioning measuring device is located on numerically-controlled machine tool, comprising:
For placing the motion workbench of workpiece for measurement；
The line-scan digital camera being fixed on above the motion workbench；
Image for shooting the line-scan digital camera is handled, and obtains the Circularhole diameter of the workpiece for measurement, is determined
The processor of coordinate information of the circular hole hole heart in workpiece for measurement coordinate system；
For according to coordinate information of the circular hole hole heart in workpiece for measurement coordinate system and the workpiece for measurement in numerical control
Coordinate information in lathe coordinate system, determine coordinate information of the circular hole hole heart in NC Machine Tools Coordinate system and to it is described to
Survey the work pieces process component that workpiece is processed.
Preferably, in above-mentioned positioning measuring device provided by the embodiment of the utility model, the line-scan digital camera includes using
In the light source emitter of offer linear light sorurce；
The light source emitter is oblique in face of plane where the workpiece for measurement so that linear light sorurce covering it is described to
Survey workpiece.
Preferably, in above-mentioned positioning measuring device provided by the embodiment of the utility model, the linear array in the unit time
The corresponding object space actual size of image summation of camera shooting is identical as the travel speed of the workpiece for measurement.
Preferably, in above-mentioned positioning measuring device provided by the embodiment of the utility model, the processor includes being used for
The image that the line-scan digital camera is shot is collected the image pick-up card and image processing software with transmission.
Preferably, in above-mentioned positioning measuring device provided by the embodiment of the utility model, described image processing software is
Halcon image processing software.
Preferably, in above-mentioned positioning measuring device provided by the embodiment of the utility model, the processor is specifically used for
The image that described image capture card is collected into is read by halcon image processing software, obtains the profile letter of the workpiece for measurement
Breath, extracts the circular hole feature on the workpiece for measurement according to the profile information, is fitted to circular hole, obtains the work to be measured
The Circularhole diameter of part determines coordinate information of the circular hole hole heart in workpiece for measurement coordinate system.
Preferably, in above-mentioned positioning measuring device provided by the embodiment of the utility model, the line-scan digital camera is one
Linear array CCD camera.
A kind of positioning measuring device provided by the utility model, the positioning measuring device are located on numerically-controlled machine tool, comprising:
For placing the motion workbench of workpiece for measurement；The line-scan digital camera being fixed on above motion workbench；For line-scan digital camera to be clapped
The image taken the photograph is handled, and the Circularhole diameter of workpiece for measurement is obtained, and determines coordinate of the circular hole hole heart in workpiece for measurement coordinate system
The processor of information；For according to coordinate information of the circular hole hole heart in workpiece for measurement coordinate system and workpiece for measurement in numerically-controlled machine tool
Coordinate information in coordinate system determines coordinate information of the circular hole hole heart in NC Machine Tools Coordinate system and adds to workpiece for measurement
The work pieces process component of work.Above-mentioned positioning measuring device provided by the utility model obtains image, processor using line-scan digital camera
It handles image and work pieces process component carries out positioning process, overcome the deficiency of traditional artificial operation, obtained using line-scan digital camera
The precision of image in a scanning direction is high, can really feed back the workpiece picture in industrial production, improves measurement and positioning accuracy,
And structure is simple, locating speed is fast.
Detailed description of the invention
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only
It is the embodiments of the present invention, for those of ordinary skill in the art, without creative efforts, also
Other attached drawings can be obtained according to the attached drawing of offer.
Fig. 1 is the structural schematic diagram of positioning measuring device provided by the embodiment of the utility model；
Fig. 2 is locating measurement method flow chart provided by the embodiment of the utility model.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
Every other embodiment obtained, fall within the protection scope of the utility model.
The utility model provides a kind of positioning measuring device, is located on numerically-controlled machine tool, as shown in Figure 1, comprising:
For placing the motion workbench of workpiece for measurement；
The line-scan digital camera 1 being fixed on above motion workbench；
Image for shooting line-scan digital camera 1 is handled, and obtains the Circularhole diameter of workpiece for measurement, determines the circular hole hole heart
The processor 2 of coordinate information in workpiece for measurement coordinate system；
For according to coordinate information of the circular hole hole heart in workpiece for measurement coordinate system and workpiece for measurement in NC Machine Tools Coordinate
Coordinate information in system determines coordinate information of the circular hole hole heart in NC Machine Tools Coordinate system and is processed to workpiece for measurement
Work pieces process component 3.
In above-mentioned positioning measuring device provided by the embodiment of the utility model, it is located on numerically-controlled machine tool, comprising: movement work
Platform, line-scan digital camera, processor and work pieces process component；Line-scan digital camera is used to shoot the image of workpiece for measurement；Processor is used for will
The image of line-scan digital camera shooting is handled, and is obtained the Circularhole diameter of workpiece for measurement, is determined the circular hole hole heart in workpiece for measurement coordinate
Coordinate information in system；Work pieces process component is used for according to coordinate information of the circular hole hole heart in workpiece for measurement coordinate system and to be measured
Coordinate information of the workpiece in NC Machine Tools Coordinate system determines coordinate information of the circular hole hole heart in NC Machine Tools Coordinate system and right
Workpiece for measurement is processed.Since above-mentioned positioning measuring device obtains image, processor processing image and work using line-scan digital camera
Part processing component carries out positioning process, overcomes the deficiency of traditional artificial operation, the image that line-scan digital camera obtains is in scanning direction
On precision it is high, can really feed back the workpiece picture in industrial production, improve measurement and positioning accuracy, and structure it is simple,
Locating speed is fast.
It should be noted that the cost of line-scan digital camera is significantly less than the area array cameras of same homalographic, same resolution ratio；Linear array
The precision of the image that camera obtains in a scanning direction can be higher than the image that area array cameras obtains.In addition, processor can be one
Platform computer or host computer can be electrically connected with numerically-controlled machine tool, and the communication between processor and numerically-controlled machine tool can be channel radio
The communication of news or other modes, as long as meeting work pieces process component that processor is sent information in numerically-controlled machine tool to realize number
Control accurate processing of the lathe to workpiece for measurement.
In the specific implementation, in above-mentioned positioning measuring device provided by the embodiment of the utility model, line-scan digital camera can be with
For linear array CCD camera, quantity is one.Here linear array CCD camera can be specially 4K linear array CCD camera, and 4K refers to video
Resolution ratio, belong to ultra high-definition resolution ratio, the pixel number of horizontal direction can reach this order of magnitude of 4000 pixels, but not be exhausted
Pair 4000 pixels, reach 3840*2160,4096*2160.
In the specific implementation, in above-mentioned positioning measuring device provided by the embodiment of the utility model, as shown in Figure 1, line
Array camera 1 may include for providing the light source emitter 11 of linear light sorurce；Light source emitter 11 is oblique to face workpiece for measurement institute
In plane, so that linear light sorurce covers workpiece for measurement.It should be noted that linear light sorurce is high brightness linear light sorurce, obtaining
When image, adjustment appropriate can be carried out to light source emitter to obtain the image being more clear.
In the specific implementation, in above-mentioned positioning measuring device provided by the embodiment of the utility model, unit time interior lines
The corresponding object space actual size of image summation of array camera shooting and the travel speed of workpiece for measurement are answered identical, that is to say, that
Synchronous scanning is asked, when scanning synchronous, the workpiece image of acquisition, there is no deformation, is handled it compared with practical work piece
Result closest to workpiece size true value；When camera acquisition speed is greater than workpiece travel speed, workpiece image is elongated,
The result handled it will be greater than the true value of workpiece size；When camera acquisition speed is less than workpiece travel speed, work
Part image is compressed.
In the specific implementation, in above-mentioned positioning measuring device provided by the embodiment of the utility model, as shown in Figure 1, place
Reason device 2 may include at image pick-up card 21 and image that the image for shooting line-scan digital camera 1 is collected and transmits
Manage software 22.Here image processing software 22 can be halcon image processing software.
Specifically, in the specific implementation, processing implement body can be used for reading image by halcon image processing software
The image that capture card is collected into obtains the profile information of workpiece for measurement in advance, and will be to be measured by halcon image processing software
The profile information of workpiece extracts, and using feature extraction, finds out the circular hole feature on workpiece for measurement, then can use fit_
Ellipse_contour_xld operator is fitted circular hole, obtains more accurate circular hole feature, and then obtain workpiece for measurement
Circularhole diameter, coordinate information of the circular hole hole heart in workpiece for measurement coordinate system is determined by halcon image processing software.
Conceived based on same utility model, the utility model embodiment additionally provides a kind of locating measurement method, due to this
The principle that method solves the problems, such as is similar to a kind of aforementioned positioning measuring device, therefore the implementation of this method may refer to positioning measurement
The implementation of device, overlaps will not be repeated.
In the specific implementation, locating measurement method provided by the embodiment of the utility model, as shown in Fig. 2, specifically include with
Lower step:
The image for the workpiece for measurement that S201, line-scan digital camera shooting are placed on motion workbench；
S202, processor handle the image that line-scan digital camera is shot, and obtain the Circularhole diameter of workpiece for measurement, determine circle
Coordinate information of the Kong Kongxin in workpiece for measurement coordinate system；
S203, work pieces process component exist according to coordinate information of the circular hole hole heart in workpiece for measurement coordinate system and workpiece for measurement
Coordinate information in NC Machine Tools Coordinate system determines coordinate information of the circular hole hole heart in NC Machine Tools Coordinate system and to work to be measured
Part is processed.
In above-mentioned locating measurement method provided by the embodiment of the utility model, image and processing are obtained using line-scan digital camera
Device handles image, then by the effect of the work pieces process component in numerically-controlled machine tool, overcomes the deficiency of traditional artificial operation, method
Simply, locating speed is fast, positioning accuracy is high, realizes accurate processing of the numerically-controlled machine tool to workpiece hole.
In the specific implementation, in above-mentioned locating measurement method provided by the embodiment of the utility model, step S202 processing
Device handles the image that line-scan digital camera is shot, and obtains the Circularhole diameter of workpiece for measurement, determines the circular hole hole heart in workpiece for measurement
Coordinate information in coordinate system, can specifically include following steps:
Step 1: processor collects the image that line-scan digital camera is shot by image pick-up card；
Step 2: reading the image that image pick-up card is collected by halcon image processing software, workpiece for measurement is obtained
Profile information；
Step 3: extracting the circular hole feature on workpiece for measurement according to profile information；
Step 4: being fitted to circular hole, the Circularhole diameter of workpiece for measurement is obtained, determines that the circular hole hole heart is sat in workpiece for measurement
Coordinate information in mark system.
A kind of positioning measuring device provided by the embodiment of the utility model, the positioning measuring device are located on numerically-controlled machine tool,
It include: the motion workbench for placing workpiece for measurement；The line-scan digital camera being fixed on above motion workbench；For by linear array phase
The image of machine shooting is handled, and is obtained the Circularhole diameter of workpiece for measurement, is determined the circular hole hole heart in workpiece for measurement coordinate system
The processor of coordinate information；For according to coordinate information of the circular hole hole heart in workpiece for measurement coordinate system and workpiece for measurement in numerical control
Coordinate information in lathe coordinate system, determine coordinate information of the circular hole hole heart in NC Machine Tools Coordinate system and to workpiece for measurement into
The work pieces process component of row processing.Above-mentioned positioning measuring device provided by the utility model obtains image, place using line-scan digital camera
It manages device processing image and work pieces process component carries out positioning process, the deficiency of traditional artificial operation is overcome, using line-scan digital camera
It is high to obtain the precision of image in a scanning direction, can really feed back the workpiece picture in industrial production, improve measurement and positioning
Precision, and structure is simple, locating speed is fast.
Finally, it is to be noted that, herein, relational terms be used merely to by an entity or operation with it is another
A entity or operation distinguish, and without necessarily requiring or implying between these entities or operation, there are any this actual
Relationship or sequence.Moreover, the terms "include", "comprise" or any other variant thereof is intended to cover non-exclusive inclusion,
So that the process, method, article or equipment for including a series of elements not only includes those elements, but also including not having
The other element being expressly recited, or further include for elements inherent to such a process, method, article, or device.Do not having
There is the element limited in the case where more limiting by sentence "including a ...", it is not excluded that in the mistake including the element
There is also other identical elements in journey, method, article or equipment.
Positioning measuring device provided by the utility model is described in detail above, it is used herein specifically a
Example is expounded the principles of the present invention and embodiment, this reality that the above embodiments are only used to help understand
With novel method and its core concept；At the same time, for those skilled in the art, based on the idea of the present invention,
There will be changes in the specific implementation manner and application range, in conclusion the content of the present specification should not be construed as to this
The limitation of utility model.
Claims (6)
1. a kind of positioning measuring device, which is characterized in that be located on numerically-controlled machine tool, comprising:
For placing the motion workbench of workpiece for measurement；
The line-scan digital camera being fixed on above the motion workbench；
Image for shooting the line-scan digital camera is handled, and is obtained the Circularhole diameter of the workpiece for measurement, is determined circular hole
The processor of coordinate information of the hole heart in workpiece for measurement coordinate system；
For according to coordinate information of the circular hole hole heart in workpiece for measurement coordinate system and the workpiece for measurement in numerically-controlled machine tool
Coordinate information in coordinate system determines coordinate information of the circular hole hole heart in NC Machine Tools Coordinate system and to the work to be measured
The work pieces process component that part is processed.
2. positioning measuring device according to claim 1, which is characterized in that the line-scan digital camera includes linear for providing
The light source emitter of light source；
The oblique plane where the workpiece for measurement of the light source emitter, so that the linear light sorurce covers the work to be measured
Part.
3. positioning measuring device according to claim 2, which is characterized in that the line-scan digital camera shooting in the unit time
The corresponding object space actual size of image summation is identical as the travel speed of the workpiece for measurement.
4. positioning measuring device according to claim 3, which is characterized in that the processor includes for by the linear array
The image of camera shooting is collected image pick-up card and image processing software with transmission.
5. positioning measuring device according to claim 4, which is characterized in that the processor is specifically used for by image
Reason software reads the image that described image capture card is collected into, and the profile information of the workpiece for measurement is obtained, according to the profile
Circular hole feature on workpiece for measurement described in information extraction, is fitted circular hole, obtains the Circularhole diameter of the workpiece for measurement, really
Determine coordinate information of the circular hole hole heart in workpiece for measurement coordinate system.
6. positioning measuring device according to any one of claims 1 to 5, which is characterized in that the line-scan digital camera is one
Linear array CCD camera.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201820388725.6U CN208399978U (en) | 2018-03-21 | 2018-03-21 | A kind of positioning measuring device |
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| CN201820388725.6U CN208399978U (en) | 2018-03-21 | 2018-03-21 | A kind of positioning measuring device |
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| CN208399978U true CN208399978U (en) | 2019-01-18 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108459558A (en) * | 2018-03-21 | 2018-08-28 | 苏州大学 | A kind of positioning measuring device and locating measurement method |
| CN113358557A (en) * | 2021-05-24 | 2021-09-07 | 深圳市艾比森光电股份有限公司 | Thrust measurement method and device |
-
2018
- 2018-03-21 CN CN201820388725.6U patent/CN208399978U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108459558A (en) * | 2018-03-21 | 2018-08-28 | 苏州大学 | A kind of positioning measuring device and locating measurement method |
| CN108459558B (en) * | 2018-03-21 | 2024-04-19 | 苏州大学 | Positioning measurement device and positioning measurement method |
| CN113358557A (en) * | 2021-05-24 | 2021-09-07 | 深圳市艾比森光电股份有限公司 | Thrust measurement method and device |
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