CN207223199U - A kind of laser marking system of online vision guide contraposition - Google Patents
A kind of laser marking system of online vision guide contraposition Download PDFInfo
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- CN207223199U CN207223199U CN201721066651.6U CN201721066651U CN207223199U CN 207223199 U CN207223199 U CN 207223199U CN 201721066651 U CN201721066651 U CN 201721066651U CN 207223199 U CN207223199 U CN 207223199U
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- laser marking
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- workpiece
- image processing
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Abstract
The utility model discloses a kind of laser marking system of online vision guide contraposition, including trigger, camera, image processing system, general-purpose type laser marking machine, trigger is connected with camera, camera is connected with image processing system, image processing system is connected with general-purpose type laser marking machine, trigger detects workpiece and triggers camera and takes pictures to workpiece, and the workpiece photo of image processing system analyzing and processing camera shooting simultaneously controls general-purpose type laser marking machine to workpiece mark.The laser marking system of technical solutions of the utility model can meet the real-time contraposition of the object on high-speed flow line, realize accurate marking on the fly, the high-accuracy clamp of costliness is replaced with the method for vision, image procossing carries out static mark with that need not stop conveyer belt during mark, and production efficiency is greatly improved.
Description
Technical field
Vision guide technique of counterpoint field is the utility model is related to, more particularly to a kind of laser of online vision guide contraposition
Marking system.
Background technology
Laser marking machine of the prior art is mainly used in progress object mark on assembly line, during mark often
Need the workpiece that is flowed through on assembly line consistent with template workpiece location in position, need to use in actual production
Expensive frock clamp positions workpiece, therefore it is higher and not intelligent enough to manufacture cost.
In addition, there is the marking machine of vision-based detection in the prior art then there are cumbersome complexity, during image procossing
Between it is longer and need workpiece remain static it is lower could carry out mark, therefore it is required that the specified mark location of workpiece arrival
Afterwards, conveyer belt stop motion is then controlled, is then turned on working after waiting workpiece mark, such operator scheme causes have
Have vision-based detection with the marking system of automatic aligning when in use, the transfer rate of conveyer belt cannot be too fast, but so understand pole
Influence the production efficiency of workpiece mark greatly and influence the productivity effect of enterprise.
Utility model content
The main purpose of the utility model is to propose a kind of reduction production cost, easy to operate and easy to use, raising life
Produce efficiency, a kind of versatile laser marking system of online vision guide contraposition, it is intended to solve the marking machine behaviour of the prior art
Make cumbersome and low work efficiency technical problem.
To achieve the above object, the utility model proposes a kind of online vision guide contraposition laser marking system, bag
Include trigger, camera, image processing system, general-purpose type laser marking machine；The trigger is connected with the camera, the camera
It is connected with described image processing system, described image processing system is connected with the general-purpose type laser marking machine；The trigger
Detect workpiece and trigger the camera and take pictures to workpiece, the workpiece that described image processing system analyzes and processes the camera shooting shines
Piece simultaneously controls the general-purpose type laser marking machine to workpiece mark.
Preferably, it is provided with light source below the camera and is irradiated in workpiece surface, may be such that the figure that camera shoots workpiece
As becoming apparent from, easy to improve the accuracy of image image processing system successive image processing.
Preferably, the light source for low angle and is provided with the flip-over type LED light source of diffusing reflection plate.
Preferably, the frame per second of the camera is no less than 60fps, and resolution ratio is no less than 1,300,000, the image shot by camera
Pixel error is not more than 1pix, it is ensured that the clear and reliability for the image that camera photographs.
Preferably, it is connected between the general-purpose type laser marking machine and the camera by Fine-adjustment support, is conveniently adjusted
The micro adjustment of distance between camera and general-purpose type laser marking machine, ensures the accuracy of distance between the two.
Preferably, the camera is arranged at the upstream end of conveyer belt, and the general-purpose type laser marking machine is in conveyer belt
Downstream.
Preferably, the trigger is infrared ray sensor, described image processing system ARM LINUX embedded systems.
Technical solutions of the utility model have the following advantages compared with prior art：
(1) production cost is reduced.Technical solutions of the utility model have vision compared with traditional industrial lasers marking machine
Detection function, scanning galvanometer can carry out real-time operating attitude adjustment according to mark workpiece is treated and carry out accurate mark, and nothing
The high-accuracy clamp that costliness need to be assembled treats the progress morpheme restriction of mark workpiece, therefore technical solutions of the utility model can reduce life
Produce cost.
(2) it is easy to operate and easy to use.Compared with existing vision marking machine, the online vision of technical solutions of the utility model
The laser marking system for guiding contraposition at work, only need to trigger once and need to only shoot a two field picture sending to image procossing system
System is contrasted with template workpiece image, you can completes corresponding data comparison adjustment work.In addition the utility model technical side
Case only need to be corrected once when every kind of different type workpiece establish template job library, therefore easy to operate and use
It is convenient.
(3) production efficiency is improved.Vision marking machine uses camera and marking machine coaxial optical path structure mostly in the prior art,
Run when mark workpiece in marking machine working range and when remaining static, marking machine could carry out mark, therefore work
It is less efficient.And in technical solutions of the utility model, treat that mark workpiece can be transmitted on a moving belt and and be flown
Mark, therefore can effectively improve production efficiency relative to the vision marking machine of the prior art.
(4) it is versatile.Existing vision marking machine needs to match corresponding mark software and control panel, and this practicality
New technique scheme need to only use general marking machine agreement, therefore need not rely on specific mark software and control panel, therefore this
Utility model technical solution has the advantages that versatile.
Brief description of the drawings
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, drawings in the following description are only
It is some embodiments of the utility model, for those of ordinary skill in the art, in the premise not made the creative labor
Under, other attached drawings can also be obtained according to the structure shown in these attached drawings.
Fig. 1 is the structure diagram of the laser marking system of the online vision guide contraposition of the utility model；
Fig. 2 is the partial enlarged view at A in Fig. 1；
Fig. 3 is the operating diagram of the laser marking system of the online vision guide contraposition of the utility model.
Drawing reference numeral explanation：
| Label | Title | Label | Title |
| 1 | Conveyer belt | 5 | Computer |
| 2 | General-purpose type laser marking machine | 6 | Trigger |
| 3 | Fine-adjustment support | 7 | Treat mark workpiece |
| 4 | Camera | 8 | Template workpiece |
The embodiments will be further described with reference to the accompanying drawings for the realization, functional characteristics and advantage of the utility model aim.
Embodiment
The following is a combination of the drawings in the embodiments of the present utility model, and the technical scheme in the embodiment of the utility model is carried out
Clearly and completely describing, it is clear that described embodiment is only the part of the embodiment of the utility model, rather than all
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not making creative work premise
Lower all other embodiments obtained, shall fall within the protection scope of the present invention.
If it is to be appreciated that related in the utility model embodiment directionality instruction (such as upper and lower, left and right, it is preceding,
Afterwards ...), then directionality instruction be only used for explain it is opposite between each component under a certain particular pose (as shown in drawings)
Position relationship, motion conditions etc., if the particular pose changes, directionality instruction also correspondingly changes correspondingly.
If, should " first ", " the in addition, relate to the description of " first ", " second " etc. in the utility model embodiment
Two " etc. description is only used for description purpose, and it is not intended that instruction or implying its relative importance or implicit indicating meaning
The quantity of the technical characteristic shown.Thus, " first " is defined, the feature of " second " can express or implicitly include at least one
A this feature.In addition, the technical solution between each embodiment can be combined with each other, but must be with ordinary skill
Personnel can be implemented as basis, and this technical side is will be understood that when the combination appearance of technical solution is conflicting or can not realize
The combination of case is not present, also not within the protection domain of the requires of the utility model.
The utility model proposes a kind of laser marking system of online vision guide contraposition.
Refer to Fig. 1 and Fig. 2, the laser marking system of the online vision guide contraposition of the utility model embodiment, including
Trigger 6, camera 4, image processing system, general-purpose type laser marking machine 2.Wherein trigger 6 is electrically connected with camera 4, camera 4 with
Image processing system connects, and image processing system is connected with general-purpose type laser marking machine 2, and trigger 6 detects workpiece and triggers phase
Machine 4 treats mark workpiece 7 and takes pictures, and the photo that image processing system analyzing and processing camera 4 photographs simultaneously controls general-purpose type to swash
Light marking machine 2 treats mark workpiece 7 and carries out mark.
In the utility model embodiment, the lower section of camera 4 is provided with light source and is irradiated in the surface for treating mark workpiece 7.Preferably,
Light source is low angle and is provided with the flip-over type LED light source of diffusing reflection plate.
In the utility model embodiment, the camera frame per second of camera 4 is no less than 60fps, and resolution ratio is no less than 1,300,000, camera 4
The pixel error of shooting image is not more than 1pix.
In the utility model embodiment, it is connected between general-purpose type laser marking machine 2 and camera 4 by Fine-adjustment support 3.It is excellent
Selection of land, camera 4 are arranged at the upstream end of conveyer belt 1, and general-purpose type laser marking machine 2 is in the downstream of conveyer belt 1.
In the utility model embodiment, trigger 6 is infrared ray sensor, and image processing system is embedded in for ARM LINUX
Formula system.
Fig. 1 to Fig. 3 is referred to, the utility model also applies a kind of laser marking system aligned using online vision guide
The laser marking method of system, comprises the following steps：
S1：Template workpiece image is obtained according to 8 type of different templates workpiece and size and forms template job library；
S2：The size position of 6 delay time of trigger, pixel amplification factor and marking image is adjusted, makes template workpiece 8
Mark pattern falls on 8 surface of template workpiece in marking on the fly；
S3：The coordinate system translation parameters △ Xc and △ Yc of general-purpose type laser marking machine 2 are finely tuned by Fine-adjustment support 3, carefully
Adjust and determine that mark pattern is beaten on the designated position of template workpiece 8；
S4：Start conveyer belt 1 to treat mark workpiece 7 and transmit, wait to beat for being placed on any attitude on 1 top surface of conveyer belt
Workpiece 7 is marked, laser marking system treats that mark workpiece 7 makes corresponding adjustment according to different postures, makes general-purpose type laser marking machine 2
Treat 7 mark of mark workpiece and go out the pattern consistent with template workpiece 8.
Above-mentioned steps S1 includes step：
S11：Template workpiece 8 is ajusted and is positioned over 1 top surface of conveyer belt, camera 4 shoots and obtains the form fixer of template workpiece 8
Part image, 2 marking image of general-purpose type laser marking machine are located inside template workpiece image；
S12：Image processing system is to template workpiece image procossing and extracts characteristic information, and wherein characteristic information includes template
The locus of workpiece 8 and rotation angle, finally preserve to template job library.
Fig. 1 to Fig. 3 is referred to, the operation principle of the laser marking system of the online vision guide contraposition of the utility model is such as
Under：
Template workpiece 8 is positioned in a manner of ajusting on 1 top surface of conveyer belt first, and manual actuation conveyer belt 1 makes mould
Plate workpiece 8 is moved to the underface of camera 4, and camera 4 carries out template workpiece 8 to shoot corresponding template workpiece image, and camera 4 will
Template workpiece image is sent to image processing system, and image processing system handles template workpiece 8 and extracts corresponding spy
Reference ceases, and wherein characteristic information includes locus and the rotation angle of template workpiece 8, then preserves to template job library
It is interior.
Then the size position of the Time delay time of adjustment trigger 6, pixel amplification factor and marking image, makes mould
In marking on the fly, marking image can just fall on workpiece top surface plate workpiece 8.Then it is logical by adjusting the fine setting of Fine-adjustment support 3
With the coordinate system translation parameters △ Xc and △ Yc of formula laser marking machine 2, final fine tuning simultaneously determines that mark pattern beats the finger in workpiece
Positioning is put.
After template job library is established, the workpiece for treating mark is positioned on 1 top surface of conveyer belt and is transmitted, when treating
When mark workpiece is sent to 6 test position of trigger, 6 infrared ray sensor of trigger is detected when mark workpiece 7, trigger
6 send working signal to camera 4, and camera 4 treats that mark workpiece 7 sends image processing system and analyzes and processes by what is photographed, makes figure
Analyze and handle as processing system and treat the view data of mark workpiece 7, the area-of-interest of mark workpiece 7 is treated in extraction, and is counted
Calculate center and the deviation angle of area-of-interest, then respectively with the locus of template workpiece 8 in template job library and
Rotation angle is contrasted, to obtain treating deviation parameter difference △ X, the △ Y and rotation ginseng between mark workpiece 7 and template workpiece 8
Difference △ δ are measured, and affine transformation air exercise is carried out using deviation parameter difference △ X, △ Y and rotation parameter difference △ δ and line speed v
Logo image file carries out coordinate data and is converted, to calculate the number of coordinates after mark workpiece 7 carries out coordinate data conversion
According to, and calculate and treat that 7 slave flipflop 6 of mark workpiece is moved to △ t the time required to 2 coordinate origin of general-purpose type laser marking machine.
It is (X, Y) after mark coordinate of the mark workpiece 7 after coordinates correction is carried out, is specially：X=X0+ △ X and Y=Y0+
△Y.Wherein X0, Y0 are the original coordinates for treating mark workpiece 7, and
△ X=(dX+cX*cos △ δ-cY*sin △ δ-cX) * β
△ Y=(dY+cX*sin △ δ+cY*cos △ δ-cY) * β
And dX, dY in above formula finely tune distance for Fine-adjustment support 3, cX, cY are to treat that 7 position of mark workpiece is opposite in image
In the coordinate shift of template workpiece 8, β is pixel amplification factor.
When mark workpiece 7 is sent to general-purpose type 2 lower section of laser marking machine, the scanning in general-purpose type laser marking machine 2
Galvanometer gets the image after conversion, so that the starting of marking on the fly pattern instantaneously flows through general-purpose type laser marking with object forward position
High-precise synchronization matches at the time of 2 origin of machine.
The utility model embodiment technical solution has the function of vision-based detection compared with traditional industrial lasers marking machine,
Scanning galvanometer can carry out real-time operating attitude adjustment according to mark workpiece is treated and carry out accurate mark, expensive without assembling
High-accuracy clamp treat mark workpiece and carry out morpheme restriction, therefore technical solutions of the utility model can reduce production cost.
Compared with existing vision marking machine, the laser marking system of the online vision guide contraposition of the utility model embodiment exists
During work, it need to only trigger once and need to only shoot a two field picture and send to image processing system and template workpiece image carrying out pair
Than, you can complete corresponding data comparison adjustment work.In addition technical solutions of the utility model every kind of different type workpiece into
When row establishes template job library, only need to once it be corrected, thus it is easy to operate and easy to use.
Vision marking machine is mostly using camera and marking machine coaxial optical path structure in the prior art, treat mark workpiece run to
When in marking machine working range and remaining static, marking machine could carry out mark, therefore work efficiency is relatively low.And this practicality
In new technique scheme, treat mark workpiece can be transmitted on a moving belt and and carry out marking on the fly, therefore relative to existing
The vision marking machine for having technology can effectively improve production efficiency.
In addition, existing vision marking machine needs to match corresponding mark software and control panel, and the utility model is real
General marking machine agreement need to only be used by applying example, therefore need not rely on specific mark software and control panel, therefore the utility model
Embodiment technical solution has the advantages that versatile.
The above is only the preferred embodiment of the present invention, and it does not limit the scope of the patent of the present invention,
It is every under the design of the utility model, equivalent structure transformation made based on the specification and figures of the utility model, or
Directly/be used in other related technical areas indirectly and be included in the scope of patent protection of the utility model.
Claims (7)
1. a kind of laser marking system of online vision guide contraposition, it is characterised in that including trigger, camera, image procossing
System, general-purpose type laser marking machine；The trigger is connected with the camera, and the camera connects with described image processing system
Connect, described image processing system is connected with the general-purpose type laser marking machine；The trigger detects workpiece and triggers the phase
Machine takes pictures workpiece, and described image processing system analyzes and processes the workpiece photo of the camera shooting and controls the general-purpose type to swash
Light marking machine is to workpiece mark.
2. the laser marking system of online vision guide contraposition as claimed in claim 1, it is characterised in that below the camera
It is provided with light source and is irradiated in workpiece surface.
3. the laser marking system of online vision guide contraposition as claimed in claim 2, it is characterised in that the light source is low
Angle and the flip-over type LED light source for being provided with diffusing reflection plate.
4. the laser marking system of online vision guide contraposition as claimed in claim 1, it is characterised in that the frame of the camera
Rate is no less than 60fps, and resolution ratio is no less than 1,300,000, and the pixel error of the image shot by camera is not more than 1pix.
5. the laser marking system of online vision guide contraposition as claimed in claim 1, it is characterised in that the general-purpose type swashs
It is connected between light marking machine and the camera by Fine-adjustment support.
6. the laser marking system of online vision guide contraposition as claimed in claim 5, it is characterised in that the camera is set
In the upstream end of conveyer belt, the general-purpose type laser marking machine is in the downstream of conveyer belt.
7. the laser marking system of vision guide contraposition as claimed in claim 1 online, it is characterised in that the trigger is
Infrared ray sensor, described image processing system are ARM LINUX embedded systems.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721066651.6U CN207223199U (en) | 2017-08-24 | 2017-08-24 | A kind of laser marking system of online vision guide contraposition |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721066651.6U CN207223199U (en) | 2017-08-24 | 2017-08-24 | A kind of laser marking system of online vision guide contraposition |
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| Publication Number | Publication Date |
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| CN207223199U true CN207223199U (en) | 2018-04-13 |
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ID=61858852
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| CN201721066651.6U Expired - Fee Related CN207223199U (en) | 2017-08-24 | 2017-08-24 | A kind of laser marking system of online vision guide contraposition |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107486628A (en) * | 2017-08-24 | 2017-12-19 | 广东工业大学 | A kind of laser marking system and laser marking method of online vision guide contraposition |
| CN110052715A (en) * | 2019-03-15 | 2019-07-26 | 山东红宝自动化有限公司 | A kind of metal plate plastic-spraying part automatic detection marking system |
| CN111185675A (en) * | 2018-11-15 | 2020-05-22 | 上海中国弹簧制造有限公司 | Laser marking method for spiral spring |
| CN112620997A (en) * | 2020-12-11 | 2021-04-09 | 东莞市鹏煜威科技有限公司 | Machining process of upper cover positioning pin |
| CN115195322A (en) * | 2022-07-29 | 2022-10-18 | 韦孚智能科技(上海)有限公司 | Visual marking method |
-
2017
- 2017-08-24 CN CN201721066651.6U patent/CN207223199U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107486628A (en) * | 2017-08-24 | 2017-12-19 | 广东工业大学 | A kind of laser marking system and laser marking method of online vision guide contraposition |
| CN111185675A (en) * | 2018-11-15 | 2020-05-22 | 上海中国弹簧制造有限公司 | Laser marking method for spiral spring |
| CN111185675B (en) * | 2018-11-15 | 2022-01-04 | 上海中国弹簧制造有限公司 | Laser marking method for spiral spring |
| CN110052715A (en) * | 2019-03-15 | 2019-07-26 | 山东红宝自动化有限公司 | A kind of metal plate plastic-spraying part automatic detection marking system |
| CN112620997A (en) * | 2020-12-11 | 2021-04-09 | 东莞市鹏煜威科技有限公司 | Machining process of upper cover positioning pin |
| CN115195322A (en) * | 2022-07-29 | 2022-10-18 | 韦孚智能科技(上海)有限公司 | Visual marking method |
| CN115195322B (en) * | 2022-07-29 | 2023-06-06 | 韦孚智能科技(上海)有限公司 | Visual marking method |
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180413 Termination date: 20180824 |