CN112573815B - Non-contact cambered surface glass cutting equipment - Google Patents
Non-contact cambered surface glass cutting equipment Download PDFInfo
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- CN112573815B CN112573815B CN202011242114.9A CN202011242114A CN112573815B CN 112573815 B CN112573815 B CN 112573815B CN 202011242114 A CN202011242114 A CN 202011242114A CN 112573815 B CN112573815 B CN 112573815B
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- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B33/00—Severing cooled glass
- C03B33/08—Severing cooled glass by fusing, i.e. by melting through the glass
- C03B33/082—Severing cooled glass by fusing, i.e. by melting through the glass using a focussed radiation beam, e.g. laser
Abstract
The invention discloses non-contact cambered surface glass cutting equipment which comprises: the three-dimensional cambered surface glass processing device comprises a workbench, wherein a placing platform for placing three-dimensional cambered surface glass is arranged on the workbench, is arranged on a mobile positioning mechanism and moves to a specified processing position along the X-axis direction under the action of the mobile positioning mechanism; the rotating mechanism is connected with the placing platform and is used for driving the three-dimensional cambered surface glass on the appointed processing position to rotate; the three-dimensional cambered surface glass surface focusing device comprises an emitting head and a focusing lens, wherein the focusing lens and the emitting head are always kept in relatively fixed positions, and the emitting head is always spaced from the surface of the three-dimensional cambered surface glass. The ejection head is matched with the transverse moving module and the longitudinal moving module to move along a preset path, a laser beam emitted by the ejection head is always incident to the surface of the three-dimensional cambered glass along the normal direction in the moving process of the ejection head, and after the ejection head moves along the preset path, the cambered glass is cut. Because the laser beam always enters the surface of the three-dimensional cambered glass along the normal direction, the trimming quality of laser cutting is improved.
Description
Technical Field
The invention relates to the technical field of glass cutting, in particular to non-contact cambered surface glass cutting equipment.
Background
In the prior art, the processing of cambered surface glass such as automobile rearview mirrors and the like is completed in a mechanical processing mode, and the general process is as follows: taking a square curved glass as an original sheet, installing a glass cutter on an automatic cutting machine, scribing and cutting according to preset size parameters, cutting out the shape of the rearview mirror, breaking off the redundant part, chamfering and edging the rearview mirror through an edging machine, and cleaning to obtain a finished product.
The processing technology has the following problems: the efficiency is low, multiple processes are required, the cleaning is not environment-friendly enough, and when mechanical cutting is carried out, the actual cutting effect size and the input preset cutting parameters have large deviation, but the requirement on the overall dimension of the lens is high, so that the requirement cannot be met, and a plurality of inferior-quality products are caused; if the pass-stop gauge mode is used for detecting whether the size of the lens is in compliance, the product quality is unstable, and the stop gauge is made of stainless steel materials and has higher hardness than glass, so that the collision can be generated, bad products are generated, and waste is caused; if high finished product rate is required, the requirements on the technology and experience of workers are strict, and the existing conditions are difficult to meet.
The application number of the device and the method for rapidly and accurately cutting the three-dimensional cambered glass by laser is '201810369320.2', a contact type processing device for the three-dimensional cambered glass is provided, the device is attached to a cutting cambered surface by a laser head, and the laser head moves along a cutting path to finish cambered surface cutting. However, the machining method still has the problem that the laser head always contacts with the cambered surface to generate friction in the cutting process, so that the service life of the laser head is too low.
Disclosure of Invention
The technical problem to be solved by the invention is to provide non-contact arc glass cutting equipment by overcoming the defects of the prior art.
The technical scheme adopted by the invention is as follows: a non-contact cambered surface glass cutting apparatus comprising:
the worktable is provided with a mobile positioning mechanism;
the placing platform is used for placing the three-dimensional cambered glass and is arranged on the mobile positioning mechanism and moves to a specified processing position along the X-axis direction under the action of the mobile positioning mechanism;
the rotating mechanism is connected with the placing platform and is used for driving the three-dimensional cambered surface glass on the appointed processing position to rotate;
the bracket is arranged on the workbench;
the high-speed laser assembly is arranged on the support and is positioned above the placing platform; the high-speed laser assembly includes:
the laser emission device comprises an emission head and a focusing lens, wherein the focusing lens and the emission head are always kept in a relatively fixed position, the emission head is provided with a vertex which extends downwards and is always spaced from the surface of the three-dimensional cambered surface glass, and a through hole for emitting laser is arranged at the vertex;
the longitudinal moving module is connected with the ejection head and the focusing mirror and used for driving the ejection head and the focusing mirror to move along the Z-axis direction according to a preset path, so that the focusing mirror receives laser and focuses the laser inside and outside the whole thickness of the three-dimensional cambered surface glass all the time;
the transverse moving module is connected with the longitudinal moving module and is used for driving the ejection head to transversely move along the Y-axis direction according to a preset path;
the emitting head is matched with the transverse moving module and the longitudinal moving module to move along a preset path, a laser beam emitted by the emitting head is always incident to the surface of the three-dimensional cambered glass along the normal direction in the moving process of the emitting head, and after the emitting head moves along the preset path, the cambered glass is cut.
The downward extending top of the emergent head always keeps a space with the surface of the three-dimensional cambered surface glass, so that the emergent head cannot generate friction with the three-dimensional cambered surface glass substrate, and the service life of the emergent head is prolonged. And the laser beam emitted by the emitting head is always incident to the surface of the three-dimensional cambered glass along the normal direction in the moving process of the emitting head, so that the thicker cambered glass is conveniently cut, and the trimming quality of laser cutting is also improved. And a cutting mode of rotary cutting of the three-dimensional cambered surface glass is adopted, the three-dimensional cambered surface glass does not need to be displaced along the X-axis direction in the cutting process, and the machining precision is improved.
In a further scheme, the emitting head is configured to be driven to rotate by a driving motor, and the driving motor drives the emitting head to swing left and right according to a derivative equation of a rotation angle of the emitting head, so that a laser beam emitted by the emitting head is always incident to the surface of the three-dimensional cambered surface glass along a normal direction; before the emitting head is not displaced to realize cutting, the position of the emitting head is set as an initial point; the expression of the derivative equation of the rotation angle is as follows:
wherein the content of the first and second substances,
the included angle between the laser beam emitted by the emitting head at the initial point and the laser beam emitted by the emitting head after rotation; z is the longitudinal displacement distance of the emergent head; r is the radius of the arc corresponding to the three-dimensional cambered surface glass substrate; y is the transverse displacement distance of the emergent head;
the derivation equation of the longitudinal displacement distance Z is as follows:
in a further scheme, the high-speed laser assembly further comprises a reference seat and a fixed seat, the fixed seat is arranged on the support, the reference seat is rotatably connected with the fixed seat, and the ejection head is connected with the reference seat; the driving motor is connected to the reference seat through a connecting piece and drives the reference seat to rotate relative to the fixed seat so as to realize rotation of the emergent head; the focusing lens is arranged in the ejection head, and reflector groups used for guiding laser to be always incident to the focusing lens are arranged on the reference seat and the fixed seat. The laser beam emitted by the emitting head is always incident to the surface of the three-dimensional cambered glass along the normal direction in the moving process of the emitting head by driving the emitting head to rotate through the driving motor, the precision of the laser beam incident to the surface of the three-dimensional cambered glass along the normal direction in the moving process of the emitting head is higher compared with that the bottom tray moves up and down, the incident angle of the emitting head is close to 90 degrees when the bottom tray moves up and down, and the emitting head can only cut the cambered glass on one station, the cutting precision is low, and the thick glass is difficult to cut.
In a further scheme, the reflector group comprises a first reflector and a second reflector, the first reflector is arranged in the fixed seat and used for receiving laser emitted by the laser and reflecting the laser, and the second reflector is arranged in the reference seat and used for receiving the laser reflected by the first reflector and reflecting the laser to the focusing mirror in the emergent head.
In a further scheme, the placing platform comprises a tray and a supporting seat for supporting the tray, a plurality of air holes are formed in the tray, and the air holes are connected with a pneumatic assembly used for enabling the air holes to form negative pressure through an air channel pipeline. Make gas pocket department go out through pneumatic assembly and form the negative pressure, prevent that three-dimensional cambered surface glass from separating with the tray in the rotation process.
In a further scheme, the rotating mechanism comprises a rotating platform and a driver for driving the rotating platform to rotate, the rotating platform is arranged on the supporting seat, and the tray is arranged on a rotating station of the rotating platform.
In a further scheme, the mobile positioning mechanism comprises a first linear module, the first linear module comprises a first linear guide rail and two first sliding tables capable of sliding on the first linear guide rail, and the placing platform is arranged on the first sliding tables; and the two first sliding tables sequentially reciprocate between the designated processing position and the three-dimensional cambered surface glass feeding point on the first linear guide, and when one first sliding table is positioned at the designated processing position, the other first sliding table is positioned at the three-dimensional cambered surface glass feeding point. Through the simultaneous double-station warp cutting and feeding, the working efficiency is improved.
In a further scheme, the transverse moving module is arranged on the support, a connecting plate is movably arranged on the transverse moving module along the Y-axis direction, the longitudinal moving module is arranged on the connecting plate, and both the ejection head and the focusing lens can be arranged on the longitudinal moving module; and a dust cover is arranged on the transverse moving module. Prevent through the dust cover that the lateral shifting module from advancing the ash, avoid the dust to produce the friction at the lateral shifting module removal in-process to the moving member and lead to the lateral shifting module to burn out.
In a further scheme, the transverse moving module comprises a second linear guide rail and a second sliding table which can slide on the second linear guide rail, dust covers are arranged at the head end and the tail end of the second sliding table respectively, the dust covers are arranged along the length direction of the second linear guide rail, one end of each dust cover is connected with the second sliding table, and the other end of each dust cover is connected with the second linear guide rail; when the second sliding table slides, the dust cover located on one side of the advancing direction of the second sliding table is folded, and the dust cover located on the other side of the second sliding table is stretched. The dust cover is driven to be compressed and stretched through the second sliding table, so that the dust cover can always cover the vacant guide rail on the transverse moving module, and the dust prevention effect is improved.
Advantageous effects
The downward extending top of the emergent head always keeps a space with the surface of the three-dimensional cambered surface glass, so that the emergent head cannot generate friction with the three-dimensional cambered surface glass substrate, and the service life of the emergent head is prolonged. And the laser beam emitted by the emitting head is always incident to the surface of the three-dimensional cambered glass along the normal direction in the moving process of the emitting head, so that the trimming quality of laser cutting is improved.
And a cutting mode of rotary cutting of the three-dimensional cambered surface glass is adopted, the three-dimensional cambered surface glass does not need to be displaced along the X-axis direction in the cutting process, and the machining precision is improved.
Drawings
FIG. 1 is a front view of a non-contact cambered surface glass cutting apparatus;
FIG. 2 is a side view of a non-contact cambered surface glass cutting apparatus;
FIG. 3 is an isometric view of a non-contact curved glass cutting apparatus;
FIG. 4 is an enlarged view of portion A of FIG. 3;
FIG. 5 is a front view of an exit assembly consisting of the exit head, the focusing lens, the reference seat and the fixing seat;
FIG. 6 is a cross-sectional view of FIG. 5B-B;
FIG. 7 is a schematic structural view of the placement platform;
FIG. 8 is a schematic diagram of deriving the angle of rotation of an exit head;
FIG. 9 is a schematic view of the rotation angle of the initial point of the derivation nozzle not directly above the center of the three-dimensional arc glass;
fig. 10 is a schematic diagram of the tray swinging longitudinally so that the three-dimensional cambered glass on the corresponding processing station is perpendicular to the laser beam emitted by the emitting head.
The reference numerals in the schematic drawings illustrate:
1-a workbench, 2-a moving positioning mechanism, 21-a first linear guide rail, 22-a first sliding table, 3-a placing platform, 31-a tray, 32-a supporting seat, 33-an air hole, 34-a pneumatic component, 4-a rotating mechanism, 5-a bracket, 6-a high-speed laser component, 61-an emergent head, 62-a reference seat, 63-a fixed seat, 64-a focusing lens, 65-a first reflecting mirror, 66-a second reflecting mirror, 67-a driving motor, 68-a longitudinal moving module, a third linear guide rail 681, a third sliding table 682, 69-a transverse moving module, 691-a second linear guide rail, 692-a second sliding table, 610-a connecting plate, 611-a dust cover and 7-three-dimensional cambered glass.
Detailed Description
For a further understanding of the invention, reference should be made to the following detailed description taken in conjunction with the accompanying drawings.
In the description of the present invention, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.
Referring to fig. 1-9, the present embodiment provides a non-contact arc glass cutting apparatus, which includes a worktable 1, and the worktable 1 is provided with a mobile positioning mechanism 2, a placing platform 3 and a rotating mechanism 4. In the scheme, the placing platform 3 is arranged on the mobile positioning mechanism 2 and moves to a specified processing position along the X-axis direction under the action of the mobile positioning mechanism 2. The rotating mechanism 4 is connected with the placing platform 3, and when the mobile positioning mechanism 2 drives the placing platform 3 to a specified processing position, the rotating mechanism 4 drives the three-dimensional cambered glass 7 on the placing platform 3 to rotate.
Specifically, the mobile positioning mechanism 2 includes a first linear module, and the first linear module includes a first linear guide rail 21 and a first sliding table 22 capable of sliding on the first linear guide rail 21. Put platform 3 and set up on first slip table 22, put platform 3 through first slip table 22 drive and slide on first linear guide 21, realize putting platform 3 in the feeding of X axle direction.
As shown in fig. 7, the placing platform 3 includes a tray 31 and a supporting seat 32 for supporting the tray 31, the rotating mechanism 4 includes a rotating platform and a driver for driving the rotating platform to rotate, the rotating platform is disposed on the supporting seat 32, and the tray 31 is disposed on a rotating station of the rotating platform. In this scheme, drive rotary platform pivoted driver is the rotating electrical machines, is connected through the rotor plate that rotating electrical machines and the last rotation station of rotary platform correspond to it is rotatory to drive the rotor plate. When the placing platform 3 moves to the appointed processing position, the rotating platform drives the three-dimensional cambered surface glass 7 to rotate.
And to prevent the three-dimensional arc glass 7 from being separated from the tray 31 during the rotation. The tray 31 is provided with a plurality of air holes 33, the air holes 33 are connected with a pneumatic component 34 which is used for enabling the air holes 33 to form negative pressure through an air channel pipeline, and the negative pressure is formed through the air holes 33 to form vacuum adsorption on the three-dimensional cambered surface glass 7 on the tray 31.
Meanwhile, a support 5 is further arranged on the workbench 1, a high-speed laser assembly 6 is arranged on the support 5, and the high-speed laser assembly 6 is located above the placing platform 3. The high-speed laser assembly 6 includes an emission head 61, a focusing mirror 64, a reference base 62, a fixed base 63, a transverse moving module 69, and a longitudinal moving module 68. The emitting head 61 and the focusing mirror 64 are relatively fixed, and the transverse moving module 69 is connected with the emitting head 61 and the focusing mirror 64 and used for driving the emitting head 61 to transversely move along the Y-axis direction according to a preset path. The longitudinal moving module 68 is connected to the emitting head 61 and the focusing mirror 64, and is configured to drive the emitting head 61 and the focusing mirror 64 to move along the Z-axis direction according to a predetermined path, so that the focusing mirror 64 receives the laser and focuses the laser inside and outside the entire thickness of the three-dimensional arc glass 7.
The transverse moving module 69 includes a second linear guide 691 and a second sliding table 692 capable of sliding on the second linear guide 691. The second guide rail is disposed on the bracket 5, and the second sliding table 692 is provided with a connection plate 610. The longitudinal moving module 68 includes a third linear guide and a third sliding table 682 capable of sliding on the third linear guide 681, and the third linear guide 681 is disposed on the connecting plate 610.
The fixing base 63 is disposed on the third sliding table 682. Specifically, referring to fig. 5 and 6, a rotating platform is disposed on the fixed base 63, the rotating platform includes a rotating plate and a driving motor 67 for driving the rotating plate to rotate, the reference base 62 is disposed on the rotating plate of the rotating platform, and the emitting head 61 is connected to the reference base 62. The driving motor 67 drives the rotating plate to rotate according to a derivative equation of the rotation angle of the injection head 61, and further drives the reference base 62 to rotate relative to the fixed base 63. When the reference seat 62 rotates, the emitting head 61 is driven to rotate, so that the laser beam emitted by the emitting head 61 is always incident to the surface of the three-dimensional cambered glass 7 along the normal direction.
The driving motor 67 drives the emitting head 61 to rotate, and the rotating angle is derived according to the displacement of the emitting head 61, so that the laser beam emitted by the emitting head 61 can be ensured to be incident to the surface of the three-dimensional cambered glass 7 along the normal direction all the time. However, if the tray 31 is longitudinally swung to make the three-dimensional arc glass 7 on the corresponding processing station perpendicular to the laser beam emitted by the emitting head 61, and the emitting head 61 does not swing to cut along the line, as shown in fig. 10, the laser beam emitted by the three-dimensional arc glass 7 and the emitting head 61 in the processing method is only nearly perpendicular, and still has a certain angle deviation, and is only suitable for cutting thin glass. However, in the scheme, the driving motor 67 drives the emitting head 61 to rotate, so that the laser beam emitted by the emitting head 61 can be ensured to be always incident to the surface of the three-dimensional cambered glass 7 along the normal direction, the cutting precision is high, and the cutting device is suitable for cutting thicker cambered glass.
And because the tray 31 does not need to swing longitudinally, the scheme adopts the cutting mode of the rotation of the tray 31, and the three-dimensional cambered glass 7 does not need to be displaced in the X-axis direction in the cutting process, thereby improving the processing precision.
Referring to fig. 8 and 9 (the solid line is the laser emitted from the emitting head 61 and the emitting head 61 before displacement, and the dotted line is the laser emitted from the emitting head 61 and the emitting head 61 after displacement), in order to obtain the derivative equation of the rotation angle of the emitting head 61, before the emitting head 61 is not displaced to realize cutting, the position of the emitting head 61 is determined as an initial point; the expression of the derivation equation of the rotation angle and the derivation process thereof are as follows:
o is the center of the arc corresponding to the three-dimensional arc glass 7, OC is the laser emitted by the emitting head 61 before displacement, and OD is the laser emitted by the emitting head 61 after displacement. Respectively obtaining a point A and a point B according to the intersection points of OC and OD and the three-dimensional cambered surface glass 7 to obtain a triangle OAB, wherein in order to obtain the value of the angle AOB
The length of AB is obtained first, and then perpendicular to AO is made via point B to obtain triangle ABE and triangle OBE, and the length of BE is the transverse displacement distance Y of the ejection head 61. The length of AB is the longitudinal displacement distance Z of the exit head 61.
OA and OB are known as the radius R of the arc corresponding to the three-dimensional arc glass 7, and the length of OE is known as R-Z. According to trigonometric functionsTheorem, OB 2 =OE 2 +BE 2 。
The derivative equation of the longitudinal displacement distance Z can be obtained as follows:
。
then, according to the trigonometric function theorem, the value X of AB is derived, namely X 2 =Y 2 +Z 2 。
Then, according to trigonometric function theorem, cos is obtained
=
。
Then, according to the inverse trigonometric function theorem, obtaining
Finally, the parallel line DF of OC is made, and the angle ODF is the rotation angle of the emitting head 61
. Because of DF// OC, therefore
=
，
Can obtain
。
It should be noted that, as shown in fig. 9, the position of the laser emitted from the emitting head 61 when cutting starts is not necessarily at the center of the arc glass, but the calculation formula is the same no matter where the starting point of the emitting head 61 is.
As an illustration of a further embodiment of the present invention,
the angle of rotation of the exit head 61;
is the included angle between the laser beam emitted from the emitting head 61 at the initial point and the laser beam emitted from the emitting head 61 after rotating; z is the longitudinal displacement distance of the exit head 61; r is the radius of a circular arc corresponding to the three-dimensional cambered surface glass 7 substrate; y is the lateral displacement distance of the exit head 61.
Moreover, since the emitting head 61 rotates constantly during the displacement process, and the focusing mirror 64 is disposed on the emitting head 61 and rotates along with the emitting head 61, in order to avoid that the laser cannot enter the focusing mirror 64 and cannot be focused on the surface of the three-dimensional arc glass 7, the reference seat 62 and the fixed seat 63 are provided with a mirror group for guiding the laser to always enter the focusing mirror 64. The reflector set comprises a first reflector 65 and a second reflector 66, the first reflector 65 is disposed in the fixing base 63 for receiving the laser emitted by the laser and reflecting the laser, and the second reflector 66 is disposed in the reference base 62 for receiving the laser reflected by the first reflector 65 and reflecting the laser to the focusing mirror 64 in the emitting head 61.
When the three-dimensional cambered surface glass 7 is placed on the tray 31, the first sliding table 22 drives the placing platform 3 to slide on the first linear guide rail 21 to a specified processing position. Then the pneumatic component 34 forms negative pressure at the air hole 33 to adsorb the three-dimensional cambered glass 7. The rotating platform drives the three-dimensional cambered glass 7 on the tray 31 to rotate. Meanwhile, the emitting head 61 is matched with the transverse moving module 69 and the longitudinal moving module 68 to move along a preset path, and the driving motor 67 drives the emitting head 61 to swing so that the laser beam emitted by the emitting head 61 is always incident to the surface of the three-dimensional cambered glass 7 along the normal direction. And after the ejection head 61 moves along the preset path, cutting the three-dimensional cambered glass 7.
As a preferred embodiment, the number of the first sliding tables 22 is two, and the two first sliding tables 22 sequentially move back and forth between the designated processing position and the feeding point of the three-dimensional cambered glass 7 on the first linear guide, and when one of the first sliding tables 22 is located at the designated processing position, the other first sliding table 22 is located at the feeding point of the three-dimensional cambered glass 7. Through the double-station simultaneous warp cutting and feeding, the working efficiency is improved.
In addition, the dust covers 611 are arranged at the head end and the tail end of the second sliding table 692 in the scheme, and the dust covers 611 are arranged along the length direction of the second linear guide rail 691. One end of the dust cover 611 is connected to the second slide table 692, and the other end of the dust cover 611 is connected to the second linear rail 691. When the second slide table 692 slides, the dust cover 611 on one side in the traveling direction of the second slide table 692 is folded, and the dust cover 611 on the other side of the second slide table 692 is stretched. Prevent through dust cover 611 that lateral shifting module 69 from advancing the ash, avoid the dust to produce the friction with second slip table 692 in the lateral shifting module 69 removal process and lead to lateral shifting module 69 to burn out. And the second sliding table 692 drives the dust cover 611 to compress and stretch, so that the dust cover 611 can always cover the vacant guide rail on the transverse moving module 69, and the dust prevention effect is improved.
The present invention and its embodiments have been described above schematically, without limitation, and what is shown in the drawings is only one of the embodiments of the present invention, and the actual structure is not limited thereto. Therefore, without departing from the spirit of the present invention, a person of ordinary skill in the art should understand that the present invention shall not be limited to the embodiments and the similar structural modes without creative design.
Claims (6)
1. A non-contact cambered surface glass-cutting apparatus, comprising:
the worktable is provided with a mobile positioning mechanism;
the placing platform is used for placing the three-dimensional cambered glass, is arranged on the mobile positioning mechanism and moves to a specified processing position along the X-axis direction under the action of the mobile positioning mechanism; the placing platform comprises a tray and a supporting seat for supporting the tray, a plurality of air holes are formed in the tray, and the air holes are connected with a pneumatic assembly for enabling the air holes to form negative pressure through an air channel pipeline;
the rotating mechanism is connected with the placing platform and is used for driving the three-dimensional cambered surface glass on the appointed processing position to rotate;
the bracket is arranged on the workbench;
the high-speed laser assembly is arranged on the support and is positioned above the placing platform; the high-speed laser assembly includes:
the laser device comprises an emitting head and a focusing lens, wherein the focusing lens and the emitting head are always kept in relatively fixed positions, the emitting head is provided with a vertex which extends downwards and is always spaced from the surface of the three-dimensional cambered surface glass, and a through hole for emitting laser is formed in the vertex;
the longitudinal moving module is connected with the ejection head and the focusing mirror and used for driving the ejection head and the focusing mirror to move along the Z-axis direction according to a preset path, so that the focusing mirror receives laser and focuses the laser inside and outside the whole thickness of the three-dimensional arc glass all the time;
the transverse moving module is connected with the longitudinal moving module and is used for driving the ejection head to transversely move along the Y-axis direction according to a preset path;
the emitting head is matched with the transverse moving module and the longitudinal moving module to move along a preset path, a laser beam emitted by the emitting head is always incident to the surface of the three-dimensional cambered glass along the normal direction in the moving process of the emitting head, and after the emitting head moves along the preset path, the cambered glass is cut;
the high-speed laser assembly further comprises a reference seat and a fixed seat, the fixed seat is arranged on the support, the reference seat is rotatably connected with the fixed seat, and the ejection head is connected with the reference seat; the reference seat is connected with a driving motor through a connecting piece, and the driving motor drives the reference seat to rotate relative to the fixed seat so as to realize the rotation of the emergent head; the focusing lens is arranged in the emitting head, and reflector groups for guiding laser to be always incident to the focusing lens are arranged on the reference seat and the fixed seat; the reflector group comprises a first reflector and a second reflector; the first reflector is arranged in the fixed seat and used for receiving laser emitted by the laser and reflecting the laser; the second reflector is arranged in the reference seat and used for receiving the laser reflected by the first reflector and reflecting the laser to the focusing mirror in the emergent head.
2. The non-contact arc glass cutting device according to claim 1, wherein the emitting head is configured to rotate under the drive of a driving motor, and the driving motor drives the emitting head to swing left and right according to a derivative equation of the rotation angle of the emitting head, so that the laser beam emitted by the emitting head always enters the three-dimensional arc glass surface along the normal direction; before the cutting is realized without displacement of the emitting head, setting the position of the emitting head as an initial point; the expression of the derivative equation of the rotation angle is as follows:
wherein theta is the rotating angle of the emergent head; theta' is an included angle between the laser beam emitted by the emitting head at the initial point and the laser beam emitted by the emitting head after rotation; z is the longitudinal displacement distance of the emergent head; r is the radius of the arc corresponding to the three-dimensional cambered surface glass substrate; y is the transverse displacement distance of the emergent head;
the derivation equation of the longitudinal displacement distance Z is as follows:
3. the non-contact arc glass cutting apparatus according to claim 1, wherein the rotating mechanism comprises a rotating platform and a driver for driving the rotating platform to rotate, the rotating platform is disposed on the supporting base, and the tray is disposed on a rotating station of the rotating platform.
4. The non-contact cambered surface glass cutting apparatus of claim 1, wherein the mobile positioning mechanism comprises a first linear module, the first linear module comprises a first linear guide rail and two first sliding tables which can slide on the first linear guide rail, and the placing platform is arranged on the first sliding tables; and the two first sliding tables sequentially reciprocate between the designated processing position and the three-dimensional cambered surface glass feeding point on the first linear guide rail, and when one first sliding table is positioned at the designated processing position, the other first sliding table is positioned at the three-dimensional cambered surface glass feeding point.
5. The non-contact arc surface glass cutting device according to claim 1, wherein the transverse moving module is disposed on the support, a connecting plate is movably disposed on the transverse moving module along the Y-axis direction, the longitudinal moving module is disposed on the connecting plate, and both the emitting head and the focusing lens are disposed on the longitudinal moving module; and a dust cover is arranged on the transverse moving module.
6. The non-contact arc glass cutting equipment according to claim 5, wherein the transverse moving module comprises a second linear guide rail and a second sliding table which can slide on the second linear guide rail, the dust covers are arranged at both ends of the head and the tail of the second sliding table, the dust covers are arranged along the length direction of the second linear guide rail, one end of each dust cover is connected with the second sliding table, and the other end of each dust cover is connected with the second linear guide rail; when the second sliding table slides, the dust cover located on one side of the advancing direction of the second sliding table is folded, and the dust cover located on the other side of the second sliding table is stretched.
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| DE102004012402B3 (en) * | 2004-03-13 | 2005-08-25 | Schott Ag | Laser-cutting process to manufacture a three-dimensionally curved automotive windscreen |
| CN104071974B (en) * | 2014-06-20 | 2016-04-13 | 武汉先河激光技术有限公司 | A kind of laser equipment for glass cutting and cutting method |
| CN106563880B (en) * | 2016-10-21 | 2019-01-29 | 华中科技大学 | A kind of multiple light courcess, multi-functional, multiaxis laser Machining head and equipment |
| CN108436310B (en) * | 2018-04-23 | 2019-12-24 | 浙江圣石激光科技股份有限公司 | Method for rapidly processing automobile rearview mirror by using laser |
| CN108395089B (en) * | 2018-04-23 | 2020-04-10 | 浙江圣石激光科技股份有限公司 | Device and method for rapidly and accurately cutting three-dimensional cambered glass by laser |
| CN210314002U (en) * | 2019-07-10 | 2020-04-14 | 东莞市银锐精密机械有限公司 | Five-axis linkage glass cutting machine |
| CN215327747U (en) * | 2020-11-09 | 2021-12-28 | 浙江圣石激光科技股份有限公司 | Non-contact cambered surface glass cutting equipment |
-
2020
- 2020-11-09 CN CN202011242114.9A patent/CN112573815B/en active Active
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