CN106112282A - A kind of for CO2the decision method of the crackle of cut and system - Google Patents
A kind of for CO2the decision method of the crackle of cut and system Download PDFInfo
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- CN106112282A CN106112282A CN201610548864.6A CN201610548864A CN106112282A CN 106112282 A CN106112282 A CN 106112282A CN 201610548864 A CN201610548864 A CN 201610548864A CN 106112282 A CN106112282 A CN 106112282A
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- cut
- initial crack
- crackle
- light source
- glass
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/50—Working by transmitting the laser beam through or within the workpiece
- B23K26/53—Working by transmitting the laser beam through or within the workpiece for modifying or reforming the material inside the workpiece, e.g. for producing break initiation cracks
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Plasma & Fusion (AREA)
- Mechanical Engineering (AREA)
- Re-Forming, After-Treatment, Cutting And Transporting Of Glass Products (AREA)
Abstract
The present invention relates to a kind of to CO2Crackle produced by cut carries out decision method and for performing the system of the method.Described method includes: first determine the smooth reflex threshold A of the light source of the smooth surface for particular glass；Then the starting point making light source initial crack from glass produced by CO2 cut is incident, and hot spot produced by incident illumination is fallen on initial crack；Receive the light reflected by the glass with initial crack at the opposite side relative with incident light, now the reflected value of light source is B simultaneously；After again, move light source along initial crack bearing of trend and receive reflection light simultaneously；Finally when reflecting light and being changed to equal or exceed smooth reflex threshold A by reflected value B, then it is assumed that initial crack interrupts, the generation position of record crack fracture.The method and system of the present invention can judge accurately and rapidly for crackle in cutting process is the most fully extended, thus reduces the bad generation with fragment of cutting.
Description
Technical field
The present invention relates to a kind of to CO2Crackle produced by cut carries out decision method and for performing the method
System.
Background technology
As it is shown in figure 1, for the CO carrying out cutting for glass2Laser cutting machine is mainly by mechanical severing device, CO2Swash
Shaven head, chiller composition.CO2The process of cutting glass by laser is: first CO2Laser head forms CO at glass surface2Laser light
Speckle, CO2Laser facula is positioned at the initial position of crackle to be produced；Then, along the direction of line of cut to be produced, CO2Laser head
Mobile so that produced CO2Along laser facula, line of cut motion, heats glass, and chiller is at CO simultaneously2Laser
Move with at CO after Tou2The rear of laser facula forms cooled region on glass, and glass expands with heat and contract with cold generation stress, should
Power produces initial crack, makes initial crack extend to line of cut terminal along line of cut direction from line of cut starting point, as shown in Figure 1；
Last CO2After cut completes, sliver mechanism uses mechanical pressure or other modes, makes crackle at the vertical direction of glass
Extending further, glass is separated the most at last.
Using CO2When laser carrys out glass-cutting, the extension of initial crack is the link that one of them is extremely critical, crackle
Extension fracture will directly affect glass sliver, produces fragment bad.
Summary of the invention
In order to overcome drawbacks described above, the present invention proposes a kind of for CO2The decision method of cut and system, more
For body ground, it is proposed that a kind of for CO2Initial crack produced by cut carries out the method and system judged, the method
Can be to CO with system2Initial crack produced by cut is the most fully extended makes correct judgement, thus improves glass
The acceptance rate of glass cutting.
According to an aspect of the present invention, a kind of for CO2The decision method of cut comprises the steps:
Step one: determine the smooth reflex threshold A of the light source of the smooth surface for particular glass；
Step 2: make light source from CO2The incident sideways of the initial crack on glass produced by cut, incident illumination institute
The hot spot produced is fallen on initial crack；Opposite side at the initial crack relative with incident light receives by having initial simultaneously
The light that the glass of crackle is reflected, now the reflected value of light source is B；
Step 3: move light source along initial crack bearing of trend and receive reflection light simultaneously；
Step 4: when reflecting light and being changed to more than smooth reflex threshold A by reflected value B, then it is assumed that initial crack occurs
Fracture, the generation position of record crack fracture.
Decision method according to the present invention can have a following favorable characteristics:
In step 3, light source moves to the terminal of initial crack from the starting point of initial crack always；Thus in step 4
In, the scope that position occurs of record crack fracture；
Smooth reflex threshold A differs at least one order of magnitude with reflected value B, and reflected value B is changed to smooth reflected value A
Saltus step；
The width of the formed hot spot of described light source is equal with the width of initial crack or mates；
The angle of incidence of described light source and angle of reflection are according to being adjusted according to the position of crackle；
The center of the formed hot spot of light source and the center superposition of initial crack；
According to another aspect, the invention still further relates to a kind of glass cutting method, it comprises the steps:
Step one: use CO2Cut manufactures initial crack on glass to be cut；
Step 2: use above-mentioned laser cutting method whether initial crack is ruptured and judge；When initial crack breaks
When splitting, perform step 3；When initial crack does not occurs fracture, perform step 4；
Step 3: when initial crack fracture, using fracture initial position as CO2 cut initial position and from
Step re-executes at the beginning:
Step 4: when initial crack does not occurs fracture, performs sliver operation, glass-cutting is come.
According to another aspect, the invention still further relates to a kind of for CO2The decision-making system of cut, described system includes
Mainframe, is provided with the horizontal X direction guiding rail extended along crack growth direction on support, and the optics of light source and reception reflection light passes
Sensor is arranged on can be along the probe bracket of described horizontal X direction guiding rail slip, and driving means drives light source and optical pickocff
Mainframe moves.
Decision-making system according to the present invention can have a following favorable characteristics:
Decision-making system according to the present invention also has the horizontal Y-direction guide rail orthogonal with crack growth direction and vertical Z-direction is led
Rail, horizontal Y-direction guide rail and vertical Z-direction guide rail, driving means driving light source and optical pickocff can also be along described Y-direction and Z-directions
Slide and be adjusted.
Described driving means is motor, and this motor is provided with encoder, and the data of encoder are for breaking to initial crack
Knick point calculates: P=(c-a) * L/ (b-a), wherein: P is line of cut breakaway poing position, and c is the horse at line of cut breakaway poing
Reaching address, a is the motor address of line of cut starting point, and b is the motor address of line of cut destination county, and L is line of cut length.
Accompanying drawing explanation
Below connection with figures in description, other features and advantages of the present invention manifest with will be apparent from.In figure:
Fig. 1 is CO2The schematic diagram of the process of cutting glass by laser；
Fig. 2 is the schematic diagram that initial crack occurs when rupturing；
Fig. 3 is light source incidence during initial crack fracture, the schematic diagram of reflection；
Fig. 4 be initial crack unbroken time light source incidence, the schematic diagram of reflection；
Fig. 5 is according to an embodiment of the invention for CO2The structure chart of the decision-making system of laser cut line；
Fig. 6 is that application according to an embodiment of the invention is for CO2The glass of the decision method of laser cut line is cut
The flow chart of segmentation method；
Detailed description of the invention
It is illustrated in figure 1 and utilizes CO2The schematic diagram that glass is cut by laser cutting machine, to glass to be cut open
100 carry out sliver before need on glass 100 use laser cutting machine along line of cut manufacture initial crack 110, initially split
Stricture of vagina 110 extends in the position of line of cut, CO2Laser head sends laser beam and forms laser facula 102, CO on glass 1002Swash
Shaven head moves so that laser facula 102 moves in the direction of initial crack 101 to be formed along the direction of line of cut, cools down simultaneously
Device forms cooled region 103 on glass 100 at the rear of laser facula 102, and cooled region 103 is along with laser facula 102
Movement and move until line of cut terminal 105 from line of cut starting point 104, first glass 100 added by laser facula 102
Heat, then the glass 100 after heating is cooled down by cooled region 103 again, and glass 100 is due to thermal expansion cooling effect
Producing stress, crackle extends to line of cut terminal 105 along line of cut direction from line of cut starting point 104.
In perfect condition, initial crack 101 should be fully extended along the direction of line of cut, but it is true that due to
Various factors can there are the situation of initial crack fracture, as in figure 2 it is shown, 106 be wherein the breakaway poing of initial crack.At this
In bright embodiment, judge for whether there is the position of initial crack and initial crack.
The principle of the fracture of initial crack is as shown in Figure 3 and Figure 4.It is provided above optical pickocff 1 He at glass 100
Sending the light source 2 of incident illumination, in the case of the surface of glass 100 does not has initial crack, the surface of glass 100 is smooth
(when i.e. crackle interrupts/ruptures), incident illumination 201 almost all of light source 2 is formed reflection light by smooth glass 100 direct reflection
202, as seen in Figure 3, Fig. 3 is the sectional view of the section B-B of Fig. 2.And it is formed with initial crack on the surface of glass 100
In the case of 101, when incident illumination 201 is irradiated on crackle, the rough surface formed due to initial crack, incident illumination 201
Diffuse-reflectance occurs, and now reflection light is the faintest compared with the reflection light 202 that direct reflection is formed, as shown in Figure 4, and Fig. 4
Section A-A sectional view for Fig. 2.Such as, when the luminous flux of the reflection light 202 that direct reflection is formed is 450lm, and sending out
Reflection light received in the case of life is irreflexive may be just tens lm, such as 30lm.Therefore, when according to this point,
When measured luminous flux generation step just it is believed that there occurs fracture.Further, reach when measured luminous flux
Or when exceeding smooth reflex threshold A, it is possible to think and there occurs fracture.Preferably, to be not necessarily equal to minute surface anti-for smooth reflex threshold A
Penetrate and form the luminous flux reflecting light 202, and smaller value that can be identical with the luminous flux same order of reflection light 202.Such as,
For certain glass, it is 450lm that direct reflection forms the luminous flux of reflection light 202, has light flux values B=30lm during crackle,
Smooth reflex threshold A=240lm then can be set, it is contemplated that smooth reflex threshold A can be to be formed less than direct reflection
Other value of same order of luminous flux of reflection light 202.
Use decision-making system 200 as shown in Figure 5 to judge for initial crack, described system include for send into
Penetrating the light source 2 of light and for receiving the optical sensor 1 of reflection light, sensor 1 and light source 2 are fixed on probe bracket 3, probe
Support 3 moves on the first guide rail 4 being fixed on mainframe 5 along the Y-direction of cut direction.Probe bracket 3 can be in diagram
Z-direction and X to being adjusted the position that adjusts light source 2 and optical sensor 1 relative to glass, to realize for diverse location
The judgement of initial crack.The probe bracket 3 movement on the first guide rail 4 is such as driven motor 6 to realize, preferably by driving means
Ground, drives motor 6 to be provided with encoder or optical scale, to judge crackle fracture position.
As it is shown in figure 5, probe bracket 3 is arranged on the second guide rail 7, the second guide rail 7 is along the vertical Z being perpendicular to glass surface
To extension, therefore probe bracket can be adjusted in Z-direction；Second guide rail 7 is fixed on again the first base 8, and the first base 8
Being positioned again the 3rd guide rail 9, the 3rd guide rail 9 is along the horizontal X orthogonal with cut direction to extension, and the first base 8 can be along
3rd guide rail 9 carries out the adjustment of X-direction, therewith, probe bracket 2 also be able to carry out X to adjustment.Probe bracket 2 can X to
It is adjusted so that the application of native system is the most flexible with Z-direction, it is possible to use in various different situations.Described probe bracket 2,
Second guide rail the 7, first base the 8, the 3rd guide rail 9 is all integrated on the second base 10, and the second base 10 is positioned the first guide rail 4
On, so that probe bracket 2 can move along cut direction Y-direction.
It is further preferred that optical sensor 1 and light source 2 can rotate on probe bracket 2, so that light source 2
Incident angle α be adjustable in；Propagation law according to light, angle of incidence is equal with angle of reflection, it is preferable that optical sensor 1
Angle adjustment is Tong Bu with the angle adjustment of light source 2, turns over identical angle the most simultaneously, promptly receives reflection so that the most convenient
Light.
The system that how to utilize as shown in Figure 5 is discussed below and assists the cutting carrying out glass.
In one embodiment, the thickness of the glass 100 cut is 0.7mm, and the color of glass 100 is water white transparency,
The surface configuration of glass 100 has film plating layer, and the reflectance of this glass 100 to be cut is > 8%.This glass 100 is marked
Fixed to obtain smooth reflex threshold and corresponding incident angle α.The selection of incident angle α makes the light formed on described glass
The center of speckle substantially overlaps with the center of crackle.In this embodiment, incident angle α is 45 °, and direct reflection forms reflection light 202
Luminous flux be 450lm, have light flux values B=30lm during crackle, smooth reflex threshold A=240lm be set.It is contemplated that
It is that smooth reflex threshold can also be arranged than other value having the high an order of magnitude of light flux values during crackle.Luminous flux saltus step
This phenomenon so that the judgement for crack fracture is the most accurate.
As illustrated in flow chart as shown in fig. 6, to make initial cut on one block of glass 100 first with CO2 laser cutting machine
Line.The manufacturing process of this initial cut line is identical with conventional line of cut manufacture method.CO2 laser used in the present embodiment is cut
Cutting a length of 10.64um of outgoing wave that power is 250w, CO2 laser cutting head of head, the translational speed of CO2 laser cutting head is
300mm/s, chiller cools down after laser cutting head, the translational speed of chiller and the shifting of CO2 laser cutting head
Dynamic speed is identical.CO2 laser cutting head and chiller produce initial cut line on glass 100 to be cut.
As it is shown in figure 5, carry out the judgement whether crackle ruptures, crackle decision process followed by described decision-making system
As it is shown in figure 5, the light source 2 of the incident illumination used in this step is identical with the light source that timing signal uses.First probe is adjusted
The parameters of frame 3: X is corresponding with the position of timing signal to, Y-direction, Z-direction position so that incident angle α is identical with timing signal angle,
And make the center of hot spot that formed and the center superposition of crackle of incident illumination 201；The center of hot spot and the center superposition of crackle
Make to reflect light the most sensitive for the fracture of crackle.
Start cutting crackle is scanned detection from the starting point of initial crack then along cut direction Y-direction；Work as sensing
When the received luminous flux of device 1 exceedes smooth reflex threshold A, i.e. judge crack fracture；
As shown in Figure 4, it is preferable that when crack fracture, preferably this fracture information is fed back to associative operation personnel, relevant
Personnel carry out location determination and use CO2 laser cutting machine to carry out supplementing cutting as the starting point of line of cut the breakaway poing of crackle,
Make secondary cracks, after two secondary fissures complete, continue whether above-mentioned crackle exists the judgement of fracture.When until scanning crackle
Terminal, and when there is not the luminous flux exceeding smooth reflex threshold A, can be concluded that crackle is fully extended；
When crackle is fully extended, application mechanical pressure or alternate manner so that crackle enters one at the vertical direction of glass
Step ground extends, and finally makes glass separate.
Preferably, encoder set on motor 6 is being driven can to help the judgement to crack position.Work as original crack
A length of L, be a in the encoder address of crackle starting point, the motor address at line of cut breakaway poing is c, line of cut terminal
Motor the address b, L at place are line of cut length.Then line of cut breakaway poing position P=(c-a) * L/ (b-a).
For same kind of glass-cutting, can the most once demarcate, obtain the incidence for a certain glass
Angle value α and smooth reflex threshold A, and the crack fracture for multiple pieces of glass judges, and improve work efficiency.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, to those skilled in the art
For, in the case of without departing from the scope of the present invention, assembly of the invention can be made multiple improvement and modification.This area
Technical staff by considering that the content disclosed in this specification also can get other embodiments.This specification and example only should be by
Being considered as exemplary, the true scope of the present invention is by claims and equivalents.
Claims (10)
1. the decision method for the crackle of CO2 cut, it is characterised in that it comprises the steps:
Step one: determine the smooth reflex threshold A of the light source of the smooth surface for particular glass；
Step 2: the starting point making light source initial crack from glass produced by CO2 cut is incident, and incident illumination is produced
Hot spot fall on initial crack；The glass institute simultaneously received by having initial crack at the opposite side relative with incident light is anti-
The light penetrated, now the reflected value of light source is B；
Step 3: move light source along initial crack bearing of trend and receive reflection light simultaneously；
Step 4: when reflecting light and being changed to equal or exceed smooth reflex threshold A by reflected value B, then it is assumed that initial crack is sent out
Raw fracture, the generation position of record crack fracture.
The decision method of the crackle for CO2 cut the most according to claim 1, it is characterised in that smooth reflection
Threshold value A differs at least one order of magnitude with reflected value B, and reflected value B is changed to saltus step to smooth reflected value A.
The decision method of the crackle for CO2 cut the most according to claim 1, it is characterised in that described light source
The width of formed hot spot mates with the width of initial crack.
The decision method of the crackle for CO2 cut the most according to claim 1, it is characterised in that described light source
Angle of incidence and angle of reflection according to being adjusted according to the position of crackle.
The decision method of the crackle for CO2 cut the most according to claim 1, it is characterised in that light source institute shape
Become the center of hot spot and the center superposition of initial crack；
6. a glass cutting method, it is characterised in that: comprise the steps:
Step one: use CO2 laser cutting machine to manufacture initial crack on glass to be cut；
Step 2: use the decision method of above-mentioned crackle whether initial crack is ruptured and judge；When initial crack fracture
Time, perform step 3；When initial crack does not occurs fracture, perform step 4；
Step 3: when initial crack fracture, using the initial position of fracture as the initial position of CO2 cut and from step
Re-execute at the beginning:
Step 4: when initial crack does not occurs fracture, performs sliver operation, glass-cutting is come, complete glass-cutting.
7. the decision-making system for the crackle of CO2 cut, it is characterised in that described system includes mainframe, is propping up
Being provided with the horizontal Y-direction guide rail extended along crack growth direction on frame, the optical pickocff of light source and reception reflection light is arranged on
Can be along the probe bracket of described horizontal Y-direction slide, driving means drives probe bracket in horizontal Y-direction on mainframe
Motion.
The decision-making system of the crackle for CO2 cut the most according to claim 7, it is characterised in that it also has
The horizontal X direction guiding rail orthogonal with crack growth direction and vertical Z-direction guide rail, optical pickocff can also enter along described X to Z-direction
Row sum-equal matrix.
The decision-making system of the crackle for CO2 cut the most according to claim 7, it is characterised in that described light source
Incident angle can adjust；And optical pickocff is Tong Bu with the angle adjustment of light source.
The decision-making system of the crackle for CO2 cut the most according to claim 7, it is characterised in that described driving
Device is motor, and this motor is provided with encoder, and the data of encoder are for calculating the breakaway poing of initial crack: P=
(c-a) * L/ (b-a), wherein: P is line of cut breakaway poing position, c is the motor address at line of cut breakaway poing, and a is line of cut
The motor address of starting point, b is the motor address of line of cut destination county, and L is line of cut length.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610548864.6A CN106112282A (en) | 2016-07-13 | 2016-07-13 | A kind of for CO2the decision method of the crackle of cut and system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610548864.6A CN106112282A (en) | 2016-07-13 | 2016-07-13 | A kind of for CO2the decision method of the crackle of cut and system |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112005142A (en) * | 2018-04-27 | 2020-11-27 | 日东电工株式会社 | Resin sheet and method for producing same |
| CN113523586A (en) * | 2020-04-16 | 2021-10-22 | 大族激光科技产业集团股份有限公司 | Laser cutting method, laser cutting device and storage medium |
| CN116038107A (en) * | 2022-09-30 | 2023-05-02 | 扬州市职业大学(扬州开放大学) | Device for processing recycled concrete and control method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN116038107B (en) * | 2022-09-30 | 2024-05-28 | 扬州市职业大学(扬州开放大学) | Device for processing recycled concrete and control method thereof |
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