CN115194320A - Optical path coaxial laser processing method and device - Google Patents
Optical path coaxial laser processing method and device Download PDFInfo
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- CN115194320A CN115194320A CN202110379617.9A CN202110379617A CN115194320A CN 115194320 A CN115194320 A CN 115194320A CN 202110379617 A CN202110379617 A CN 202110379617A CN 115194320 A CN115194320 A CN 115194320A
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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
- B23K26/02—Positioning or observing the workpiece, e.g. with respect to the point of impact; Aligning, aiming or focusing the laser beam
- B23K26/04—Automatically aligning, aiming or focusing the laser beam, e.g. using the back-scattered light
- B23K26/046—Automatically focusing the laser beam
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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
- B23K26/02—Positioning or observing the workpiece, e.g. with respect to the point of impact; Aligning, aiming or focusing the laser beam
- B23K26/06—Shaping the laser beam, e.g. by masks or multi-focusing
- B23K26/064—Shaping the laser beam, e.g. by masks or multi-focusing by means of optical elements, e.g. lenses, mirrors or prisms
- B23K26/0643—Shaping the laser beam, e.g. by masks or multi-focusing by means of optical elements, e.g. lenses, mirrors or prisms comprising mirrors
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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
- B23K26/70—Auxiliary operations or equipment
- B23K26/702—Auxiliary equipment
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Abstract
The invention discloses a light path coaxial laser processing method and a device, wherein a laser beam emitted by a laser sequentially passes through a first laser light path formed by a preset light path component and a second laser light path formed by the preset laser processing component and then is focused on a product to be processed; enabling a preset visual light source arranged on the second laser light path to emit a visible light beam, so that the visible light beam is reflected to a preset laser processing assembly along the second laser light path after being irradiated on a product to be processed; enabling the preset laser processing component to coaxially reflect the received visible light beam to a first laser light path, and reflecting the visible light beam to preset imaging equipment through the preset light path component so as to generate a processing image of a product to be processed through the preset imaging equipment; and when the laser beam is not focused to the position to be processed, adjusting the focus of the laser beam to the position to be processed according to the processing image so as to perform laser processing on the product to be processed. The invention improves the accuracy and efficiency of laser processing.
Description
Technical Field
The invention relates to the technical field of laser processing, in particular to a light path coaxial laser processing method and device.
Background
In the field of laser processing technology, a product to be processed is often positioned by an imaging device (such as a camera) to guide laser processing after finding a position to be processed on the product to be processed.
However, in the prior art, after the to-be-processed product is imaged by the camera, if the position of the laser beam focused on the to-be-processed product does not meet the preset requirement, the to-be-processed product generally needs to be moved by the moving device, so that the focused position of the laser beam on the to-be-processed product meets the preset requirement.
Disclosure of Invention
The embodiment of the invention provides a method and a device for processing light path coaxial laser, which aim to solve the problem of low accuracy of laser processing.
An optical path coaxial laser processing method includes:
after receiving an instruction of carrying out laser processing on a product to be processed, controlling a laser to emit a laser beam; the instruction comprises a to-be-processed position on the to-be-processed product;
enabling the laser beam emitted by the laser to sequentially pass through a first laser light path formed by a preset light path component and a second laser light path formed by a preset laser processing component, and then focusing on the product to be processed;
enabling a preset visual light source arranged on the second laser light path to emit a visible light beam, so that the visible light beam is reflected to the preset laser processing assembly along the second laser light path after being irradiated on the product to be processed;
enabling the preset laser processing assembly to coaxially reflect the received visible light beam to the first laser light path, and reflecting the visible light beam to preset imaging equipment through the preset light path assembly so as to generate a processing image of the product to be processed through the preset imaging equipment;
and when the laser beam is not focused to the position to be processed, adjusting the focus of the laser beam to the position to be processed according to the processing image so as to perform laser processing on the product to be processed.
A light path coaxial laser processing device comprises a laser, a preset light path component, a preset laser processing component, a preset visual light source, a preset imaging device and a controller connected with the laser; the controller is used for executing the optical path coaxial laser processing method.
The method controls the laser to emit laser beams after receiving the instruction of carrying out laser processing on the product to be processed; the instruction comprises a to-be-processed position on the to-be-processed product; enabling the laser beam emitted by the laser to sequentially pass through a first laser light path formed by a preset light path component and a second laser light path formed by a preset laser processing component, and then focusing on the product to be processed; enabling a preset visual light source arranged on the second laser light path to emit a visible light beam, so that the visible light beam is reflected to the preset laser processing assembly along the second laser light path after being irradiated on the product to be processed; enabling the preset laser processing assembly to coaxially reflect the received visible light beam to the first laser light path, and reflecting the visible light beam to preset imaging equipment through the preset light path assembly so as to generate a processing image of the product to be processed through the preset imaging equipment; when the laser beam is not focused on the position to be processed, the focus of the laser beam is adjusted to the position to be processed according to the processing image so as to carry out laser processing on the product to be processed.
According to the invention, the laser beam emitted by the laser and the visible beam emitted by the preset visual light source pass through the coaxial light path (such as the first laser light path and the second laser light path), so that when the preset imaging device is moved or the product to be processed is moved, the position of the processing image displayed on the preset imaging device and the position of the laser beam focused on the product to be processed have no error, and the accuracy and the efficiency of laser processing are improved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the description of the embodiments of the present invention will be briefly introduced below, and it is obvious that the drawings in the description below are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without inventive labor.
FIG. 1 is a flow chart of a method of optical coaxial laser processing according to an embodiment of the present invention;
fig. 2 is a schematic diagram of an optical-path coaxial laser processing apparatus according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In one embodiment, as shown in fig. 1, there is provided an optical path coaxial laser processing method, including the steps of:
s10: after receiving an instruction of carrying out laser processing on a product to be processed, controlling a laser to emit a laser beam; the instructions include a location to be processed on the product to be processed.
It is understood that the product to be processed is a product to be processed by laser, such as a pipe, a plastic part, etc. The instruction for carrying out laser processing on the product to be processed can be sent by a user through the mobile terminal, and can also be automatically triggered and generated when the product to be processed is placed in a laser processing area. The laser can be selected according to the product to be processed and the user's requirements, and illustratively, the laser can be selected from an infrared laser, an ultraviolet laser, and the like, and the wavelength of the laser beam emitted by the laser can be 1064nm, and the like. The to-be-processed position refers to a processing position designated by a user on a to-be-processed product.
S20: and enabling the laser beam emitted by the laser to sequentially pass through a first laser light path formed by a preset light path component and a second laser light path formed by a preset laser processing component, and then focusing on the product to be processed.
The preset light path component is used for irradiating a laser beam into the preset laser processing component along a first laser light path, and the preset light path component may include, but is not limited to, at least one reflector and at least one beam combiner (the beam combiner includes a reflective surface and a semi-reflective and semi-transparent surface). The preset laser processing assembly is used for focusing laser beams injected from the preset light path assembly on a product to be processed, and comprises laser processing equipment such as a vibrating mirror and a focusing mirror.
Specifically, after an instruction for performing laser processing on a product to be processed is received and the laser is controlled to emit a laser beam, the laser beam emitted by the laser sequentially passes through a first laser light path formed by the preset light path component and a second laser light path formed by the preset laser processing component, and then is focused on the product to be processed.
On the one hand, make the laser beam of laser instrument transmission pass through the first laser light path that predetermines the light path subassembly and form in order, include:
and after the laser beam emitted by the laser is reflected to the beam combining mirror by the reflecting assembly, the laser beam is transmitted to the preset laser processing assembly through the beam combining mirror.
It can be understood that, after the laser beam emitted by the laser is controlled, the laser beam is reflected by the reflecting component to the beam combining mirror after reaching the reflecting component, and then the laser beam is transmitted to the predetermined laser processing component through the beam combining mirror.
In one embodiment, the predetermined optical path component includes a first reflecting mirror, a second reflecting mirror and a beam combining mirror; the first reflector is arranged at one end close to the laser; the second reflector is arranged between the first reflector and the beam combiner; the first reflecting surface of the first reflecting mirror is opposite to the second reflecting surface of the second reflecting mirror; the reflecting surface of the second reflecting mirror is opposite to the transmission surface of the beam combining mirror;
it is understood that the first mirror and the second mirror each reflect the laser beam through a corresponding reflective surface, and the first reflective surface of the first mirror is disposed opposite to the second reflective surface of the second mirror. The beam combiner is provided with a transmission surface and a semi-reflecting and semi-transmitting surface after being subjected to film coating treatment in advance (namely, the semi-reflecting and semi-transmitting surface can reflect part of light beams and can transmit part of the light beams to pass through the beam combiner), the transmission surface of the beam combiner is arranged opposite to the second reflection surface of the second reflector, and the semi-reflecting and semi-transmitting surface of the beam combiner is arranged at one end of the beam combiner, which is far away from the transmission surface. Optionally, the beam combining mirror may be coated according to the wavelength of the laser beam emitted by the laser and the wavelength of the visible light beam emitted by the preset visual light source in step S30.
It should be noted that, the number of the reflecting mirrors (i.e. the first reflecting mirror and the second reflecting mirror) in this embodiment is only used as an example, and may be increased or decreased, and similarly, the number of the beam combiner may also be increased or decreased, and only the laser beam needs to be irradiated to the predetermined laser processing assembly along the first laser optical path through the reflecting mirror and the beam combiner. Further, the beam combiner may be installed at any position between the second reflecting mirror and the preset laser processing assembly (i.e. the galvanometer in the preset laser processing assembly), and the closer the beam combiner is to the preset laser processing assembly, the clearer the processing image generated by the product to be processed in the preset imaging device in step S40 is; on the contrary, if the beam combiner is disposed at an end far away from the preset laser processing assembly, that is, an end close to the second reflecting mirror, the imaging quality of the processed image may be reduced, and the configuration of the lens in the preset imaging device may be correspondingly improved, so as to improve the quality of the processed image. Further, the beam combiner may not be added in this embodiment, and after the beam combiner is removed, only the mirror in the reflection assembly needs to be subjected to film coating processing, so that the mirror subjected to film coating processing can reflect the visible light beam to the preset imaging device.
Laser beam that the laser instrument sent is by after reflection subassembly is to the beam combiner, through the beam combiner transmission reaches preset laser processing subassembly, includes:
and after being reflected by the first reflecting surface and passing through the first reflecting light path, the laser beam emitted by the laser reaches the second reflecting surface, is reflected by the second reflecting surface and passes through the second reflecting light path, is transmitted by the transmitting surface of the beam combining mirror and passes through the transmitting light path, and then irradiates the preset laser processing component.
Specifically, after an instruction for performing laser processing on a product to be processed is received and the laser device is controlled to emit a laser beam, the laser beam emitted from the laser device is reflected by the first reflecting surface of the first reflecting mirror, passes through the first reflecting light path, then reaches the second reflecting surface of the second reflecting mirror, is reflected by the second reflecting surface, passes through the second reflecting light path, then reaches the transmitting surface of the beam combining mirror, passes through the transmitting surface, and then irradiates to the preset laser processing assembly through the transmitting light path. It is understood that, in the present embodiment, the first laser light path is decomposed into a first reflection light path, a second reflection light path, and a transmission light path, and the first reflection light path refers to a light path formed between the first reflection surface of the first reflection mirror and the second reflection surface of the second reflection mirror; the second reflection optical path refers to an optical path formed between a second reflection surface of the second reflector and a transmission surface of the beam combining mirror; the transmission light path refers to a light path formed between a transmission surface of the beam combining mirror and a preset laser processing assembly; the first reflection light path is vertical to the second reflection light path; the second reflection light path and the transmission light path are coaxially arranged, and the transmission light path is vertical to the second laser light path.
Illustratively, as shown in fig. 2, the laser beam emitted from the laser 1 passes through the first reflecting surface of the first reflecting mirror 2 to the second reflecting surface of the second reflecting mirror 3, reflects the laser beam to the transmitting surface of the beam combining mirror 4 through the second reflecting surface of the second reflecting mirror 3, and irradiates the beam to the vibrating mirror 5 in the preset laser processing assembly after penetrating the transmitting surface.
On the other hand, the preset laser processing assembly comprises a vibrating mirror and a focusing mirror; make laser beam that laser instrument transmitted pass through in order after predetermineeing the first laser light path that the light path subassembly formed and predetermine the second laser light path that laser beam machining subassembly formed, focus on treat the processing product, include:
and adjusting the received laser beam to irradiate the focusing mirror along the second laser light path through the vibrating mirror.
And focusing the laser beam on the surface of the product to be processed through the focusing lens.
It can be understood that the galvanometer is used for adjusting the irradiation direction of the received laser beam, and the galvanometer comprises two lenses, so that the received laser beam is adjusted to irradiate to the focusing lens along the second laser light path through the swing of the two lenses in the galvanometer, and then the laser beam is focused on the surface of the product to be processed through the focusing lens, namely, a focal spot is formed on the product to be processed.
S30: and enabling a preset visual light source arranged on the second laser light path to emit a visible light beam, so that the visible light beam is reflected to the preset laser processing assembly along the second laser light path after being irradiated on the product to be processed.
As can be understood, after the laser beam emitted by the laser device sequentially passes through the first laser light path formed by the preset light path component and the second laser light path formed by the preset laser processing component in step S20 and is focused on the product to be processed, in order to display the product to be processed on the preset imaging device in step S40, a preset visual light source is further added in this embodiment, so that the product to be processed can be clearly displayed in the preset imaging device; if the preset visual light source is not added, the product to be processed cannot be clearly displayed in the preset imaging equipment. Therefore, after the laser beam emitted by the laser sequentially passes through a first laser light path formed by the preset light path component and a second laser light path formed by the preset laser processing component, the laser beam is focused on the product to be processed, and then the preset visual light source arranged on the second laser light path emits the visible light beam, so that the visible light beam is reflected to the preset laser processing component along the second laser light path after being irradiated on the product to be processed, namely the visible light beam coaxially passes through the focusing mirror and the vibrating mirror sequentially along the second laser light path after being reflected by the product to be processed, and then the visible light beam is reflected to the first laser light path through the two lenses of the vibrating mirror.
S40: and enabling the preset laser processing component to coaxially reflect the received visible light beam to the first laser light path, and reflecting the visible light beam to preset imaging equipment through the preset light path component so as to generate a processing image of the product to be processed through the preset imaging equipment.
Alternatively, the preset imaging device may be an integrated device combining a camera and a lens, and the preset imaging device is configured to generate a processing image of the product to be processed so as to observe the position of a light spot formed on the product to be processed by the irradiation of the laser beam in real time.
Specifically, after the preset visual light source arranged on the second laser light path emits the visible light beam, the visible light beam irradiates on the product to be processed, the received visible light beam is reflected coaxially to the first laser light path through the swing of the two lenses of the vibrating mirror in the preset laser processing assembly after the second laser light path is reflected to the preset laser processing assembly, the visible light beam is reflected to the preset imaging device through the preset light path assembly, the processing image of the product to be processed is generated through the preset imaging device, and therefore the position of a light spot formed by irradiating the laser light beam on the product to be processed can be observed in real time according to the processing image. It can be understood that, in the present invention, the laser beam emitted by the laser and the visible light beam emitted by the preset visual light source are irradiated coaxially, that is, the laser beam and the optical path (such as the first laser optical path and the second laser optical path) through which the visible light beam passes are arranged coaxially.
In a specific embodiment, the preset imaging device is arranged opposite to a semi-reflecting and semi-transmitting surface of the beam combiner, and the semi-reflecting and semi-transmitting surface is arranged at one end of the beam combiner, which is far away from the transmitting surface; in step S40, the method includes:
and enabling the preset laser processing assembly to coaxially reflect the received visible light beam to a semi-reflecting and semi-transmitting surface of the beam combining mirror in the first laser light path.
Enabling the semi-reflecting and semi-transmitting surface of the beam combiner to reflect part of the visible light beams to the preset imaging equipment so as to generate a processing image of the product to be processed according to the received visible light beams through the preset imaging equipment; and simultaneously, the rest visible light beams continue to be coaxially emitted along the first laser light path after penetrating through the semi-reflecting and semi-transparent surface of the beam combiner.
It is understood that the beam combiner in the preset optical path assembly is pointed out in step S20 to have a transmission surface and a semi-reflection and semi-transmission surface after being subjected to the coating process in advance, wherein the semi-reflection and semi-transmission surface can reflect part of the light beams and can transmit part of the light beams to pass through the beam combiner; the transmission surface of the beam combiner is opposite to the second reflection surface of the second reflector, and the semi-reflection and semi-transmission surface of the beam combiner is arranged at one end of the beam combiner, which is far away from the transmission surface.
Further, after a preset visual light source arranged on the second laser light path emits a visible light beam to enable the visible light beam to irradiate on the product to be processed and reflect to the preset laser processing assembly along the second laser light path, two lenses of a vibrating mirror in the preset laser processing assembly are made to swing, the received visible light beam is coaxially reflected to a semi-reflecting and semi-transmitting surface of a beam combining mirror in the first laser light path, and then the semi-reflecting and semi-transmitting surface of the beam combining mirror reflects part of the visible light beam to preset imaging equipment, so that a processing image of the product to be processed is generated according to the received visible light beam through the preset imaging equipment, the position of the product to be processed is adjusted according to the processing image, and the position of the laser light beam irradiating on the surface of the product to be processed is aligned with the position to be processed; meanwhile, the remaining part of the visible light beam penetrates through the half-reflecting and half-transmitting surface of the beam combining mirror and then continues to coaxially emit along the first laser light path (for example, to a second mirror in a preset light path component).
For example, as shown in fig. 2, after the galvanometer 5 in the preset laser processing assembly receives the visible light beam reflected from the surface of the product 8 to be processed along the second light path S2, the visible light beam is coaxially reflected onto the half-reflecting and half-transmitting surface of the beam combiner 4 in the first laser path, and then the half-reflecting and half-transmitting surface of the beam combiner 4 reflects part of the visible light beam to the preset imaging device 9, so as to generate a processed image of the product 8 to be processed according to the received visible light beam through the preset imaging device 9.
S50: when the laser beam is not focused on the position to be processed, the focus of the laser beam is adjusted to the position to be processed according to the processing image so as to carry out laser processing on the product to be processed.
Specifically, after the visible light beam is reflected to a preset imaging device through the preset light path component so as to generate a processing image of the product to be processed through the preset imaging device, if it is detected that the laser beam is not focused on the position to be processed on the product to be processed according to the processing image, the current focus position is adjusted to the position to be processed according to the current focus position focused on the product to be processed on the processing image, and then the product to be processed is subjected to laser processing.
In a specific embodiment, the product to be processed is mounted on a preset moving device; the adjusting the focus of the laser beam to the position to be processed according to the processing image includes:
and determining the current focal position of the laser beam focused on the product to be processed according to the processing image.
It is understood that the current focal position is the position focused on the product to be processed through step S20, and the current focal position can be confirmed by the position calculation software according to the processed image generated by the preset imaging device.
And determining the movement track of the preset mobile device according to the current focus position and the position to be processed.
And controlling the preset moving device to drive the product to be processed to move according to the moving track so as to adjust the focus of the laser beam to be aligned with the position to be processed.
It is understood that the preset moving means may be a movable table, a robot, etc. Specifically, after the current focus position of the laser beam focused on the product to be processed is determined according to the processing image, the distance between the current focus position and the position to be processed is determined, and then the movement track of the preset moving device is determined, so that the preset moving device is controlled to drive the product to be processed to move according to the movement track, the focus of the laser beam is adjusted to be aligned with the position to be processed, and the product to be processed is subjected to laser processing.
In this embodiment, through the laser beam emitted by the laser and the visible light beam emitted by the preset visual light source, in a coaxial light path (such as the first laser light path and the second laser light path), when the preset imaging device is moved or the product to be processed is moved, the position of the processing image displayed on the preset imaging device and the position of the laser beam focused on the product to be processed do not have errors, so that the accuracy and the efficiency of laser processing are improved.
It should be understood that, the sequence numbers of the steps in the foregoing embodiments do not imply an execution sequence, and the execution sequence of each process should be determined by its function and inherent logic, and should not constitute any limitation to the implementation process of the embodiments of the present invention.
In one embodiment, a coaxial laser processing device is provided, which includes a laser, a preset light path component, a preset laser processing component, a preset visual light source, a preset imaging device and a controller connected to the laser; the controller is used for executing the optical path coaxial laser processing method.
In one embodiment, the coaxial laser processing apparatus shown in fig. 2 includes a laser 1, a preset optical path assembly including a first reflecting mirror 2, a second reflecting mirror 3 and a beam combining mirror 4, a preset laser processing assembly including a vibrating mirror 5 and a focusing mirror 6, a preset visual light source 7, a preset imaging device 9 and a controller (not shown in the figure) connected with the laser.
Further, the laser 1 is configured to emit a laser beam after receiving an instruction to laser-machine the product 8 to be machined.
Further, the first reflecting mirror 2 is configured to reflect the laser beam emitted by the laser 1 to the reflecting surface of the second reflecting mirror 3 through the first reflecting surface corresponding to the first reflecting mirror, and further reflect the laser beam to the transmitting surface of the beam combining mirror 4 through the reflecting surface of the second reflecting mirror 3, so that the laser beam penetrates through the transmitting surface and then irradiates the preset laser processing assembly to form the first laser light path S1.
Further, a vibrating mirror 5 in the preset laser processing assembly is used for adjusting the received laser beam to irradiate the focusing mirror 6 along the second laser light path S2, and then the laser beam is focused on the surface of the product 8 to be processed through the focusing mirror 6.
Further, the preset visual light source 7 is configured to emit a visible light beam, so that the visible light beam is irradiated on the to-be-processed product 8 and then sequentially reflected to the focusing mirror 6 and the vibrating mirror 5 along the second laser light path S2, the vibrating mirror 5 coaxially reflects the received visible light beam to the semi-reflective and semi-transparent surface of the beam combining mirror 4 in the first laser light path S1, and then the semi-reflective and semi-transparent surface of the beam combining mirror 4 reflects a part of the visible light beam to the preset imaging device 9, so as to generate a processed image of the to-be-processed product 8 according to the received visible light beam through the preset imaging device 9; meanwhile, the remaining part of the visible light beam penetrates through the semi-reflecting and semi-transparent surface of the beam combiner 4 and then continues to coaxially emit along the first laser light path S1.
It will be apparent to those skilled in the art that, for convenience and brevity of description, only the above-mentioned division of the functional units and modules is illustrated, and in practical applications, the above-mentioned function distribution may be performed by different functional units and modules according to needs, that is, the internal structure of the apparatus is divided into different functional units or modules to perform all or part of the above-mentioned functions.
The above-mentioned embodiments are only used for illustrating the technical solutions of the present invention, and not for limiting the same; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the embodiments of the present invention, and they should be construed as being included therein.
Claims (10)
1. An optical path coaxial laser processing method, characterized by comprising:
after receiving an instruction of carrying out laser processing on a product to be processed, controlling a laser to emit a laser beam; the instruction comprises a to-be-processed position on the to-be-processed product;
enabling the laser beam emitted by the laser to sequentially pass through a first laser light path formed by a preset light path component and a second laser light path formed by a preset laser processing component, and then focusing on the product to be processed;
enabling a preset visual light source arranged on the second laser light path to emit a visible light beam, so that the visible light beam is reflected to the preset laser processing assembly along the second laser light path after being irradiated on the product to be processed;
enabling the preset laser processing component to coaxially reflect the received visible light beam to the first laser light path, and reflecting the visible light beam to preset imaging equipment through the preset light path component so as to generate a processing image of the product to be processed through the preset imaging equipment;
when the laser beam is not focused on the position to be processed, the focus of the laser beam is adjusted to the position to be processed according to the processing image so as to carry out laser processing on the product to be processed.
2. The optical path coaxial laser processing method according to claim 1, wherein the predetermined optical path component includes a reflection component and a beam combiner; the order the laser beam that laser instrument sent passes through in order and predetermines the first laser light path that light path subassembly formed includes:
and after the laser beam emitted by the laser is reflected to the beam combining mirror by the reflecting assembly, the laser beam is transmitted to the preset laser processing assembly through the beam combining mirror.
3. The optical-path coaxial laser processing method according to claim 2, wherein the predetermined optical path component includes a first reflecting mirror, a second reflecting mirror, and a beam combiner; the first reflector is arranged at one end close to the laser; the second reflector is arranged between the first reflector and the beam combining mirror; the first reflecting surface of the first reflecting mirror is opposite to the second reflecting surface of the second reflecting mirror; the reflecting surface of the second reflecting mirror is opposite to the transmission surface of the beam combining mirror;
laser beam that the laser instrument sent is by after reflection subassembly is to the beam combiner, through the beam combiner transmission reaches preset laser processing subassembly, includes:
and after being reflected by the first reflecting surface and passing through the first reflecting light path, the laser beam emitted by the laser reaches the second reflecting surface, is reflected by the second reflecting surface and passes through the second reflecting light path, is transmitted by the transmitting surface of the beam combining mirror and passes through the transmitting light path, and then irradiates the preset laser processing component.
4. The optical-path coaxial laser processing method according to claim 3, wherein the first reflected optical path is perpendicular to the second reflected optical path.
5. The optical-path coaxial laser processing method according to claim 3, wherein the second reflection optical path is provided coaxially with the transmission optical path, and the transmission optical path is perpendicular to the second laser optical path.
6. The optical path coaxial laser processing method according to claim 2, wherein the predetermined imaging device is disposed opposite to a semi-reflective and semi-transparent surface of the beam combiner, the semi-reflective and semi-transparent surface being disposed at an end of the beam combiner facing away from the transmission surface; the order preset laser processing subassembly with the coaxial reflection of received visible light beam to in the first laser light path to through preset light path subassembly with the visible light beam reflection to preset imaging device, in order to generate through preset imaging device the processing image of waiting to process the product, include:
enabling the preset laser processing component to coaxially reflect the received visible light beam to a semi-reflecting and semi-transmitting surface of the beam combiner in the first laser light path;
enabling the semi-reflecting and semi-transmitting surface of the beam combining mirror to reflect part of the visible light beams to the preset imaging equipment so as to generate a processing image of the product to be processed according to the received visible light beams through the preset imaging equipment; and simultaneously, the rest visible light beams continue to be coaxially emitted along the first laser light path after penetrating through the semi-reflecting and semi-transparent surface of the beam combiner.
7. The optical path coaxial laser processing method according to claim 1, wherein the preset laser processing component includes a galvanometer and a focusing mirror; make laser beam that laser instrument transmitted pass through in order after predetermineeing the first laser light path that the light path subassembly formed and predetermine the second laser light path that laser beam machining subassembly formed, focus on treat the processing product, include:
adjusting the received laser beam to irradiate to the focusing mirror along the second laser light path through the vibrating mirror;
and focusing the laser beam on the surface of the product to be processed through the focusing lens.
8. The optical path coaxial laser processing method according to claim 1, wherein the product to be processed is mounted on a preset moving device; the adjusting the focus of the laser beam to the position to be processed according to the processing image includes:
determining the current focus position of the laser beam focused on the product to be processed according to the processing image;
determining a moving track of the preset moving device according to the current focus position and the position to be processed;
and controlling the preset moving device to drive the product to be processed to move according to the moving track so as to adjust the focus of the laser beam to be aligned with the position to be processed.
9. A light path coaxial laser processing device is characterized by comprising a laser, a preset light path component, a preset laser processing component, a preset visual light source, a preset imaging device and a controller connected with the laser; the controller is used for executing the optical path coaxial laser processing method according to any one of claims 1 to 8.
10. The optical path coaxial laser processing apparatus of claim 9, wherein the predetermined visual light source is disposed between the predetermined laser processing assembly and the product to be processed.
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| CN202110379617.9A CN115194320A (en) | 2021-04-08 | 2021-04-08 | Optical path coaxial laser processing method and device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115740738A (en) * | 2023-01-10 | 2023-03-07 | 清华大学 | Laser manufacturing system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115740738A (en) * | 2023-01-10 | 2023-03-07 | 清华大学 | Laser manufacturing system |
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Country or region after: China Address after: 518000, Building 101, 1st floor, 2nd floor, 4th floor, 3rd floor, 7th floor, 1st floor, and 4th floor of Building 3, Dahua Laser Intelligent Manufacturing Center, No. 12 Chongqing Road, Heping Community, Fuhai Street, Bao'an District, Shenzhen City, Guangdong Province Applicant after: Shenzhen Han's CNC Technology Co.,Ltd. Address before: 518101 5 / F, 1 / 2 / F, 14 / F, 17 / F, No.3 Factory building, antuoshan hi tech Industrial Park, Xinsha Road, Shajing street, Bao'an District, Shenzhen City, Guangdong Province Applicant before: Shenzhen Han's CNC Technology Co.,Ltd. Country or region before: China |
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