CN209647877U - The asymmetric laser of glass-cutting focuses cutting head and laser cutting device - Google Patents
The asymmetric laser of glass-cutting focuses cutting head and laser cutting device Download PDFInfo
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- CN209647877U CN209647877U CN201920117028.1U CN201920117028U CN209647877U CN 209647877 U CN209647877 U CN 209647877U CN 201920117028 U CN201920117028 U CN 201920117028U CN 209647877 U CN209647877 U CN 209647877U
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Abstract
The asymmetric laser that the utility model provides a kind of glass-cutting focuses cutting head, including the cylindrical mirror set gradually along laser beam transmission direction and focus microscope group, the axis of the cylindrical mirror is vertical with laser beam transmission direction, and the plane of cylindrical mirror is vertical with laser beam transmission direction, the focusing microscope group is located in the focusing range of the cylindrical mirror.In addition, the utility model additionally provides the laser cutting device for focusing cutting head using the asymmetric laser of this glass-cutting.Round light beam can be shaped as elliptical spot by the setting of cylindrical mirror by the utility model, induction crackle to make thermal stress generate develops along the long axis direction of elliptical spot, and cutting head is focused by the asymmetric laser of coaxial rotating, adjust focal beam spot transverse direction, make in glass that the developing direction of crack due to thermal stress is consistent with laser facula moving direction, substantially increases the efficiency of cutting glass by laser.
Description
Technical field
The utility model belongs to laser cutting technique field, and in particular to a kind of asymmetric laser focusing of glass-cutting
Cutting head and laser cutting device.
Background technique
Glass has transparency good, high mechanical strength is homogeneous, and surface is smooth, corrosion-resistant as a kind of fragile material
The advantages that, it has a wide range of applications in industrial and agricultural production and scientific research.Especially in recent years, fast with IT industry
Speed development, the high-tech electronics product such as liquid crystal display (LCD) and plasma scope (PDP) come into being, and wide
It is general to apply to high definition wall-hanging tv, laptop, monitor and communication apparatus.And being cut, being separated to glass is system
At a crucial procedure for these glass related devices, existing glass cutting method has break bar to cut and be cut by laser.
When using break bar cut glass sheet, chips of glass can be generated and glass substrate cutting back edge is more sharp, segmentation essence
Poor, cut edge weakened (crisp) is spent, also needs the processes such as edging, polishing, cleaning behind cutting action.By these
After processing, the edge of glass can only also restore by force general 30%, also, when use break bar cutting technique, artificial hand is taken or hand puts glass
Glass substrate easily generates actual bodily harm to operator.
When using cutting glass by laser piece, each laser point beaten on glass can generate heat in the focal point of laser and answer
Power crackle, when the spot distance beaten on glass is close enough, when the crackle that each spot generates is mutually communicated or is close, as long as
Apply certain external force again, so that it may so that glass plate realizes separation, the sheet glass for being cut by laser out along generated crackle
Naturally at frosted effect, it is a kind of advanced glass that intensity is high, while eliminating the process flow of subsequent edging and cleaning at edge
The solution of glass cutting, separation.However, as shown in Figure 1, existing circular laser beam generated after laser cutting head it is circular
Focal beam spot, and for such round focal beam spot, when mobile focal beam spot acts on the glass sheet, the heat generated is answered
Power induces crackle not necessarily along the advance track of laser beam, in most cases, the direction of crackle can with before hot spot
A biggish angle is formed into direction, in this way, when improving the mobile speed of hot spot, when the distance between spot is larger, continuously
Laser pulse beat the generated crack due to thermal stress on glass and be not easy perforation or close, glass will be made to be not readily separated, and want
Want that glass is enable to be separated, it is necessary to reduce the movement speed of hot spot, the crackle that each spot can just generated be mutually communicated or
It is close, it completes to glass-cutting, so that laser cutting speed substantially reduces.
Utility model content
The purpose of the utility model is to overcome the thermal stress of existing cutting glass by laser piece induction crackle and hot spot movement sides
To it is inconsistent and the problem of reduce laser cutting speed, influence cutting efficiency.
For this purpose, the asymmetric laser that the utility model provides a kind of glass-cutting focuses cutting head, including along laser
The cylindrical mirror and focus microscope group that beam transmission direction is set gradually, the axis of the cylindrical mirror is vertical with laser beam transmission direction, and
The plane of cylindrical mirror is vertical with laser beam transmission direction, and the focusing microscope group is located in the focusing range of the cylindrical mirror.
Further, the cylindrical mirror is plano-convex cylindrical lens.
Further, the focusing microscope group includes one or more condenser lenses, and multiple condenser lenses are successively spaced and set
It sets.
The utility model additionally provides a kind of laser cutting device of glass-cutting, including stepper motor, hollow rotating
Platform and above-mentioned asymmetric laser focus cutting head, and the stepper motor is focused by hollow rotating platform and asymmetric laser
Cutting head connection, and the axis of hollow rotating platform and asymmetric laser focus the axis coaxle arrangement of cutting head.
Further, the laser cutting device of above-mentioned glass-cutting further includes focusing cutting for adjusting asymmetric laser
The Z axis mould group of grease head highness.
Further, the hollow rotating platform is equipped with optoelectronic switch, and the asymmetric laser focuses to be set on cutting head
There is anti-dazzling screen, the anti-dazzling screen and optoelectronic switch corresponding matching are arranged.
Compared with prior art, the utility model has the beneficial effects that
(1) the asymmetric laser of this glass-cutting provided by the utility model focuses cutting head setting by cylindrical mirror
Elliptical spot can be shaped as round light beam by setting, so that the induction crackle for generating thermal stress is along the long axis side of elliptical spot
To development, it is conveniently adjusted the developing direction of crack due to thermal stress.
(2) the utility model makes the development side of crack due to thermal stress in glass by adjusting focal beam spot transverse direction
To consistent with laser facula moving direction, to be greatly improved the speed of cutting glass by laser, and it is easy to operate, precision is high.
The utility model is described in further details below with reference to attached drawing.
Detailed description of the invention
Fig. 1 is the optic path schematic illustration of existing laser cutting head；
Fig. 2 is the optic path schematic illustration that the asymmetric laser of the utility model focuses cutting head；
Fig. 3 be in Fig. 2 A to optic path schematic illustration；
Fig. 4 is the structural schematic diagram of laser cutting device in the utility model.
Description of symbols: 1, microscope group is focused；2, cylindrical mirror；3, Z axis mould group；4, stepper motor；5, hollow rotating platform；
6, optoelectronic switch；7, anti-dazzling screen；8, asymmetric laser focuses cutting head.
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
All other embodiment obtained, fall within the protection scope of the utility model.
In the description of the present invention, it should be understood that term " center ", "upper", "lower", "front", "rear",
The orientation or positional relationship of the instructions such as "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outside" is based on attached drawing institute
The orientation or positional relationship shown, is merely for convenience of describing the present invention and simplifying the description, rather than indication or suggestion is signified
Device or element must have a particular orientation, be constructed and operated in a specific orientation, therefore should not be understood as to this is practical
Novel limitation；In the description of the present invention, unless otherwise indicated, the meaning of " plurality " is two or more.
As shown in Figures 2 and 3, the asymmetric laser for present embodiments providing a kind of glass-cutting focuses cutting head, packet
The cylindrical mirror 2 set gradually along laser beam transmission direction and focusing microscope group 1 are included, the axis and laser beam of the cylindrical mirror 2 transmit
Direction is vertical, and the plane of cylindrical mirror 2 is vertical with laser beam transmission direction, and the microscope group 1 that focuses is located at the poly- of the cylindrical mirror 2
In burnt range.When circular laser beam passes through 2 curved cylinder of cylindrical mirror in this implementation, laser optical path generates refraction, and makes laser
Along perpendicular to shifting on 2 axis direction of cylindrical mirror on glass, and then circular laser beam forms ellipse-shaped light on glass
Spot, for non-circular laser facula, the induction crackle that thermal stress generates is along the elliptical long axis direction of laser facula
Development, the developing direction of crack due to thermal stress when so as to easily adjust cutting glass by laser realize glass-cutting separation.
Wherein, the present embodiment central column face mirror 2 selects plano-convex cylindrical lens, and laser is on glass along perpendicular to 2 axis of cylindrical mirror
To contract on direction, such circular laser beam forms the long axis direction of elliptical spot and the axis of cylindrical mirror 2 on glass
Direction is parallel.And the radius of curvature of cylindrical mirror 2 influences the ovality of elliptical spot, radius of curvature is smaller, to elliptical spot
Ovality influence it is bigger, thus the radius of curvature of cylindrical mirror 2 then can according to design elliptical spot ovality size carry out
It is calculated.In addition, focusing actual demand according to laser, the focusing microscope group 1 may include one or more condenser lenses, and
Multiple condenser lenses are successively spaced setting, and focusing the spacing size between microscope group 1 and cylindrical mirror 2 then influences elliptical spot
Size, therefore, the spacing size focused between microscope group 1 and cylindrical mirror 2 can be chosen according to the elliptical spot size of design,
Generally make to focus microscope group 1 as close as possible to the arrangement of cylindrical mirror 2.
The specific mistake that cutting head cuts glass is focused using the asymmetric laser of the glass-cutting of the present embodiment
Journey is as follows:
Firstly, issuing laser beam using pulse laser, make laser beam perpendicular to the axis of cylindrical mirror 2, and perpendicular to column
The direction of the plane of face mirror 2 is incident to above-mentioned asymmetric laser and focuses in cutting head；And cutting head is focused from asymmetric laser and is penetrated
Beam orthogonal is incident to glass surface to be cut out, since asymmetric laser focuses the presence of cutting head inner cylinder mirror 2, so that circle
Shape laser beam is shaped to elliptical spot in glass surface to be cut.
Then, the elliptical spot long axis direction formed by adjusting glass surface to be cut, is allowed to and laser facula
Moving direction is consistent, so that the developing direction of crack due to thermal stress is bonded the moving direction of laser facula in glass to be cut,
Laser pulse continuous in this way is beaten the generated crack due to thermal stress on glass to be cut and can be penetrated through or close, and makes glass easy
Separation, without reducing the movement speed of laser facula, substantially increases the efficiency of cutting glass by laser.
And a kind of specific embodiment for adjusting the elliptical spot long axis direction that glass surface to be cut is formed, it can
Using laser cutting device as shown in Figure 4, including asymmetric in stepper motor 4, hollow rotating platform 5 and the present embodiment
Laser focuses cutting head 8, and the stepper motor 4 focuses cutting head 8 with asymmetric laser by hollow rotating platform 5 and connect, and
The axis coaxle that the axis of hollow rotating platform 5 and asymmetric laser focus cutting head 8 is arranged, by the driving of stepper motor 4
Empty rotating platform 5 rotates and the asymmetric laser of coaxial rotating focuses cutting head 8.Optimization, which also wraps
The Z axis mould group 3 for focusing cutting grease head highness for adjusting asymmetric laser is included, cutting grease head highness is adjusted to suitable by Z axis mould group 3
Position guarantees that laser facula focuses depth of focus and passes through glass to be cut completely.
Further, optoelectronic switch 6 is set on the hollow rotating platform 5, and the asymmetric laser focuses cutting head 8
Upper setting anti-dazzling screen 7, anti-dazzling screen 7 focus cutting head 8 with asymmetric laser and rotate, and can control stepper motor 4 by software program
It rotates hollow rotating platform 5 and drives asymmetric laser to focus cutting head 8 and rotate by a certain angle, program dead-center position, that is, photoelectricity is opened
6 and the initial overlapping positions of anti-dazzling screen 7 are closed, are beaten when on glass so as to precisely adjust laser pulse spot, the hair of glass crack
Direction is opened up, the moving direction of laser facula is bonded as far as possible, keeps the developing direction of glass crack consistent with the platform direction of motion, reach
Can sliver best angle, to reach the processing effect of time-saving and efficiency.
Further, it before asymmetrical laser focuses cutting head 8, experiment can be first passed through finds out glass thermal stress and split
The angle that the developing direction (i.e. elliptical spot long axis direction) and laser facula moving direction of line are formed, then coaxial rotating accordingly
Asymmetric laser focuses the identical angle of cutting head 8, beats when on glass to adjust laser pulse spot more accurately, glass
The developing direction of crackle and the consistency of laser facula moving direction.
In conclusion heat in glass can be made by focusing cutting head using the asymmetric laser of the glass-cutting of the utility model
The developing direction of stress cracking is consistent with laser facula moving direction, can be real on the laser cutting device using equal-wattage
Now the equipment than existing laser cutting head is up to 6~7 times of cutting speed, greatly increases the efficiency of cutting glass by laser.
Exemplified as above is only to the utility model for example, not constituting to the protection scope of the utility model
Limitation, it is all to be belonged within the protection scope of the utility model with the same or similar design of the utility model.
Claims (6)
1. the asymmetric laser of glass-cutting focuses cutting head, it is characterised in that: including successively being set along laser beam transmission direction
The cylindrical mirror set and focus microscope group, the axis of the cylindrical mirror is vertical with laser beam transmission direction, and the plane of cylindrical mirror with it is sharp
Beam Propagation direction is vertical, and the focusing microscope group is located in the focusing range of the cylindrical mirror.
2. the asymmetric laser of glass-cutting as described in claim 1 focuses cutting head, it is characterised in that: the cylindrical mirror
For plano-convex cylindrical lens.
3. the asymmetric laser of glass-cutting as described in claim 1 focuses cutting head, it is characterised in that: the focus lamp
Group includes one or more condenser lenses, and multiple condenser lenses are successively spaced setting.
4. the laser cutting device of glass-cutting, it is characterised in that: wanted including stepper motor, hollow rotating platform and right
1~3 described in any item asymmetric laser are asked to focus cutting head, the stepper motor is swashed by hollow rotating platform with asymmetric
Light focuses cutting head connection, and the axis of hollow rotating platform and asymmetric laser focus the axis coaxle arrangement of cutting head.
5. the laser cutting device of glass-cutting as claimed in claim 4, it is characterised in that: further include non-right for adjusting
The Z axis mould group for claiming laser to focus cutting grease head highness.
6. the laser cutting device of glass-cutting as claimed in claim 4, it is characterised in that: on the hollow rotating platform
Equipped with optoelectronic switch, the asymmetric laser focuses cutting head and is equipped with anti-dazzling screen, and the anti-dazzling screen is corresponding with optoelectronic switch to match
Close arrangement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920117028.1U CN209647877U (en) | 2019-01-24 | 2019-01-24 | The asymmetric laser of glass-cutting focuses cutting head and laser cutting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920117028.1U CN209647877U (en) | 2019-01-24 | 2019-01-24 | The asymmetric laser of glass-cutting focuses cutting head and laser cutting device |
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| CN209647877U true CN209647877U (en) | 2019-11-19 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109623171A (en) * | 2019-01-24 | 2019-04-16 | 江苏先河激光技术有限公司 | The asymmetric laser of glass-cutting focuses cutting head, cutter device and method |
| CN111360395A (en) * | 2020-03-27 | 2020-07-03 | 伊诺福科光学技术有限公司 | Surface automatic tracking method and system for laser processing and storage medium |
| CN115401342A (en) * | 2022-11-02 | 2022-11-29 | 武汉引领光学技术有限公司 | Crack induction method for laser cutting of transparent brittle material |
-
2019
- 2019-01-24 CN CN201920117028.1U patent/CN209647877U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109623171A (en) * | 2019-01-24 | 2019-04-16 | 江苏先河激光技术有限公司 | The asymmetric laser of glass-cutting focuses cutting head, cutter device and method |
| CN111360395A (en) * | 2020-03-27 | 2020-07-03 | 伊诺福科光学技术有限公司 | Surface automatic tracking method and system for laser processing and storage medium |
| CN115401342A (en) * | 2022-11-02 | 2022-11-29 | 武汉引领光学技术有限公司 | Crack induction method for laser cutting of transparent brittle material |
| CN115401342B (en) * | 2022-11-02 | 2023-03-03 | 武汉引领光学技术有限公司 | Crack induction method for laser cutting of transparent brittle material |
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