CN114074431B - Plastic laser welding method, system, computer equipment and storage medium - Google Patents
Plastic laser welding method, system, computer equipment and storage medium Download PDFInfo
- Publication number
- CN114074431B CN114074431B CN202010813953.5A CN202010813953A CN114074431B CN 114074431 B CN114074431 B CN 114074431B CN 202010813953 A CN202010813953 A CN 202010813953A CN 114074431 B CN114074431 B CN 114074431B
- Authority
- CN
- China
- Prior art keywords
- layer material
- laser
- total reflection
- reflection lens
- lower layer
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000003466 welding Methods 0.000 title claims abstract description 105
- 239000004033 plastic Substances 0.000 title claims abstract description 50
- 229920003023 plastic Polymers 0.000 title claims abstract description 50
- 238000000034 method Methods 0.000 title claims abstract description 35
- 238000003860 storage Methods 0.000 title abstract description 13
- 239000000463 material Substances 0.000 claims abstract description 99
- 238000010438 heat treatment Methods 0.000 claims abstract description 6
- 238000003825 pressing Methods 0.000 claims abstract description 6
- 230000003287 optical effect Effects 0.000 claims description 6
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims description 4
- 239000004065 semiconductor Substances 0.000 claims description 2
- 238000010030 laminating Methods 0.000 claims 1
- 238000004023 plastic welding Methods 0.000 abstract 1
- 238000004590 computer program Methods 0.000 description 10
- 238000005516 engineering process Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 230000006870 function Effects 0.000 description 2
- 230000001678 irradiating effect Effects 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
- 239000012780 transparent material Substances 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
- B29C65/14—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using wave energy, i.e. electromagnetic radiation, or particle radiation
- B29C65/16—Laser beams
- B29C65/1629—Laser beams characterised by the way of heating the interface
- B29C65/1645—Laser beams characterised by the way of heating the interface heating both sides of the joint, e.g. by using two lasers or a split beam
-
- 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
-
- 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
- B23K26/067—Dividing the beam into multiple beams, e.g. multifocusing
- B23K26/0676—Dividing the beam into multiple beams, e.g. multifocusing into dependently operating sub-beams, e.g. an array of spots with fixed spatial relationship or for performing simultaneously identical operations
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/40—General aspects of joining substantially flat articles, e.g. plates, sheets or web-like materials; Making flat seams in tubular or hollow articles; Joining single elements to substantially flat surfaces
- B29C66/41—Joining substantially flat articles ; Making flat seams in tubular or hollow articles
- B29C66/45—Joining of substantially the whole surface of the articles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/90—Measuring or controlling the joining process
- B29C66/96—Measuring or controlling the joining process characterised by the method for implementing the controlling of the joining process
- B29C66/967—Measuring or controlling the joining process characterised by the method for implementing the controlling of the joining process involving special data inputs or special data outputs, e.g. for monitoring purposes
- B29C66/9674—Measuring or controlling the joining process characterised by the method for implementing the controlling of the joining process involving special data inputs or special data outputs, e.g. for monitoring purposes involving special data outputs, e.g. special data display means
-
- 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
- B23K2103/00—Materials to be soldered, welded or cut
- B23K2103/30—Organic material
- B23K2103/42—Plastics
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2009/00—Layered products
Landscapes
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Plasma & Fusion (AREA)
- Health & Medical Sciences (AREA)
- Electromagnetism (AREA)
- Toxicology (AREA)
- Lining Or Joining Of Plastics Or The Like (AREA)
Abstract
The invention discloses a plastic laser welding method, a plastic laser welding system, computer equipment and a storage medium. The method comprises the steps of controlling a laser to emit laser beams after receiving an instruction of laser welding of plastic parts to be welded; the plastic part to be welded comprises an upper layer material and a lower layer material; totally reflecting the laser beam emitted by the laser to preset light splitting equipment through a first total reflection lens, and dividing the laser beam into a first beam and a second beam through the preset light splitting equipment; heating a first welding position of the upper layer material to a molten state by irradiation of a first light beam, and heating a second welding position of the lower layer material to a molten state by irradiation of a second light beam; and pressing the lower layer material and the upper layer material to weld the first welding position and the second welding position which are in a molten state. The invention reduces the number of lasers required by laser welding, lowers the cost and improves the laser welding speed and the welding quality.
Description
Technical Field
The present invention relates to the field of laser welding technologies, and in particular, to a plastic laser welding method, a plastic laser welding system, a computer device, and a storage medium.
Background
With the development of scientific technology, the laser welding technology is also developed gradually. The plastic laser welding method in the laser welding technology has no scraps and vibration in the welding process, and has important application in methods such as automobiles, medical treatment, electronics and the like.
In the prior art, two lasers and two sets of external light path equipment are needed to emit two laser beams to heat the welding positions of the upper layer and the lower layer in a staggered manner until the welding positions are in a molten state, so that the upper layer and the lower layer of materials are moved to realize welding after pressing and cooling. But in the process of moving upper and lower layers of materials to press, the welding position cannot be guaranteed to be in a molten state continuously, so that the welding quality is possibly low, two lasers and two sets of external optical path equipment are adopted, the equipment cost is high, parameters of the two lasers and the two sets of external optical path equipment need to be adjusted simultaneously when different plastics are used, and the welding efficiency is low.
Disclosure of Invention
The embodiment of the invention provides a plastic laser welding method, a plastic laser welding system, computer equipment and a storage medium, which are used for solving the problems of lower welding quality, lower welding efficiency and higher equipment cost.
A method of laser welding plastic comprising:
after receiving an instruction of carrying out laser welding on plastic parts to be welded, controlling a laser to emit laser beams; the plastic part to be welded comprises an upper layer material and a lower layer material;
totally reflecting a laser beam emitted by a laser to preset light splitting equipment through a first total reflection lens, and splitting the laser beam into a first beam and a second beam through the preset light splitting equipment;
heating a first welding position of the upper layer material to a molten state by irradiation of the first light beam, and simultaneously heating a second welding position of the lower layer material to a molten state by irradiation of the second light beam;
and pressing the lower layer material and the upper layer material to weld the first welding position and the second welding position which are in a molten state.
A plastic laser welding system includes a controller for performing the plastic laser welding method described above.
A computer device comprising a memory, a processor and a computer program stored in the memory and executable on the processor, the processor implementing the above-described plastic laser welding method when executing the computer program.
A computer readable storage medium storing a computer program which when executed by a processor implements the plastic laser welding method described above.
According to the plastic laser welding method, the system, the computer equipment and the storage medium, the laser beam is divided into the first beam for welding the upper layer material and the second beam for welding the lower layer material through the preset beam splitting equipment, namely, the distributed welding can be realized through the single laser equipment, the first total reflection lens and the preset beam splitting equipment, the number of lasers required by laser welding is reduced (for example, two lasers are needed in the prior art, one laser is respectively emitted to the upper layer material, and the other laser is emitted to the lower layer material), and the cost is reduced. And the first light beam can be used for welding the upper layer material, the second light beam can be used for welding the lower layer material, the movement of a laser is reduced, and the laser welding speed is improved; and after the first welding position and the second welding position are heated to a molten state, the welding positions are directly pressed, so that the welding quality is improved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed in the description of the embodiments of the present invention will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a flow chart of a plastic laser welding method according to an embodiment of the invention;
FIG. 2 is a schematic view of an optical path of a plastic laser welding method according to an embodiment of the invention;
FIG. 3 is a schematic diagram of a computer device in accordance with an embodiment of the present invention.
Wherein, each reference sign in the figure is:
1-a first total reflection lens; 2-semi-reflective lenses; 3-a second total reflection lens; 4, a transparent fixing plate; 5-upper layer material; 6-lower layer material; 7-laser beam.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are some, but not all embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In one embodiment, as shown in fig. 1 and 2, a plastic laser welding method is provided, comprising the steps of:
s10: after receiving an instruction for performing laser welding on plastic parts to be welded, controlling a laser to emit a laser beam 7; the plastic part to be welded comprises an upper layer material 5 and a lower layer material 6.
The plastic part to be welded comprises an upper layer material 5 and a lower layer material 6, and the plastic part to be welded can be set according to requirements, and preferably, an opaque plastic part is selected as the plastic part to be welded in the invention, namely, the upper layer material 5 and the lower layer material 6 are both opaque plastic parts, and the diameter of the upper layer material 5 and the diameter of the lower layer material 6 can be the same or different. Further, the upper layer material 5 may be fixed by using an acrylic transparent material, so that the laser beam 7 penetrates through the acrylic transparent material to the upper layer material 5, or a fixing mechanism may be disposed above the upper layer material 5 to fix the upper layer material 5; a fixed base may be used to secure the lower layer of material 6.
Further, after the opaque plastic part is selected as the plastic part to be welded, preferably, the power device selects a power semiconductor laser, the power range of the laser is 300-1000W, and the wavelength of the laser beam 7 emitted by the laser is 915nm. Further, a high-speed galvanometer (optionally, the scanning speed of the high-speed galvanometer is 1000 mm/s-8000 mm/s) is configured on the laser to realize the welding of the plastic parts to be welded in a rapid scanning mode, and a galvanometer field lens with a telecentric lens is further configured to ensure that the laser beam 7 emitted by the laser is vertically emitted to the first total reflection lens 1.
S20: the laser beam 7 emitted by the laser is totally reflected to a preset beam splitting device through the first total reflection lens 1, and the laser beam 7 is split into a first beam and a second beam through the preset beam splitting device.
The following is described according to the schematic diagram of the optical path shown in fig. 2:
the reflecting surface of the first total reflection lens 1 is located on the optical path of the laser beam 7 emitted from the laser, optionally, the first total reflection lens 1 is placed at 45 °, further, the first total reflection lens 1 is in a horn shape, and the diameter of the horn-shaped first total reflection lens 1 gradually increases from the end connected with the transparent fixing plate 4 toward the end far from the transparent fixing plate 4. Preferably, the reflecting surface of the first total reflection mirror 1 is flat in any cross section including the central axis of the horn-shaped first total reflection mirror 1.
Further, the preset spectroscopic apparatus includes a transparent fixing plate 4, where the transparent fixing plate 4 is a circular transparent acrylic plate coaxially disposed with the first total reflection lens 1, and in order to avoid pressing the lower layer material 6 with the upper layer material 5 in step S40, the transparent fixing plate 4 is touched, so that the inner diameter of the transparent fixing plate 4 should be larger than the diameters of the upper layer material 5 and the lower layer material 6 of the plastic piece to be welded.
Further, the preset light splitting device further comprises a half-reflecting lens 2, the half-reflecting lens 2 is in a horn shape, the diameter of the horn-shaped half-reflecting lens 2 gradually increases from one end connected with the transparent fixing plate 4 to one end far away from the transparent fixing plate 4, the half-reflecting lens 2 and the first full-reflecting lens 1 are coaxially arranged, and the first full-reflecting lens 1 and the half-reflecting lens 2 are both arranged on the upper end face of the transparent fixing plate 4. Alternatively, the angle between the semi-reflecting mirror 2 and the transparent fixing plate 4 is generally set to 30 ° to 60 °, which is set in relation to the distance between the semi-reflecting mirror and the plastic piece to be welded, and also in relation to the distance between the upper layer material 5 and the lower layer material 6. Preferably, in any cross section including the central axis of the horn-shaped half mirror 2, the opposite reflecting surfaces of the half mirror 2 are both flat surfaces.
Further, the preset light splitting device further comprises a second total reflection lens 3, the second total reflection lens 3 is in a horn shape, and the diameter of the horn-shaped second total reflection lens 3 is gradually increased from one end, which is connected with the transparent fixing plate 4, away from one end of the transparent fixing plate 4; the second total reflection lens 3 is coaxially arranged with the first total reflection lens 1, and the reflecting surface of the first total reflection lens 1 is parallel to and opposite to the reflecting surface of the second total reflection lens 3. Optionally, the angle between the second total reflection lens 3 and the transparent fixing plate 4 is generally set to 30 ° to 60 °, which is related to the distance between the second total reflection lens 3 and the plastic part to be welded and also to the distance between the upper layer material 5 and the lower layer material 6. Preferably, the reflection surface of the second total reflection mirror 3 is flat in any cross section including the central axis of the horn-shaped second total reflection mirror 3.
Preferably, the first total reflection lens 1 and the preset beam splitting device are both located between the upper layer material 5 and the lower layer material 6. If the first total reflection lens 1 and the preset beam splitter are located at the position parallel to the lower layer material 6, the second total reflection lens 3 may be omitted (i.e. the second total reflection lens 3 is not disposed, or in the case of disposing the second total reflection lens 3, the placement angle of the half reflection lens 2 and/or the second total reflection lens 3 is adjusted, so that after the laser beam 7 is split into the first beam and the second beam by the half reflection lens 2 of the preset beam splitter, the first beam irradiates the welding position of the upper layer material 5 at a certain angle, and the second beam may irradiate the welding position of the lower layer material 6 in parallel. Similarly, when the first total reflection lens 1 and the preset beam splitting device are located at the position parallel to the upper layer material 5, the second total reflection lens 3 may be correspondingly omitted (i.e. the second total reflection lens 3 is not disposed, or, in the case of disposing the second total reflection lens 3, the placement angle of the half reflection lens 2 and/or the second total reflection lens 3 is adjusted, so that the laser beam 7 is split into the first beam and the second beam by the half reflection lens 2 of the preset beam splitting device (optionally, the laser energy of the first beam and the laser energy of the second beam are equal, so that the laser energy of the laser beam irradiated to the upper layer material and the laser energy of the laser beam of the second beam are equal, and therefore, the molten state of the welding position are kept consistent, so that the welding quality of the two materials is improved), and then the first beam is irradiated to the welding position of the upper layer material 5 in parallel, and the second beam may be irradiated to the welding position of the lower layer material 6 at a certain angle.
Specifically, after the laser is controlled to emit a laser beam 7, the laser beam 7 passes through a galvanometer field lens including a telecentric lens on the laser, and then the laser beam 7 is perpendicularly irradiated on the first total reflection lens 1; the first total reflection lens 1 totally reflects the laser beam 7 to a preset beam splitting device, the laser beam 7 after the total reflection of the first total reflection lens 1 irradiates the half reflection lens 2 in the preset beam splitting device along the direction parallel to the transparent fixing plate 4, and then the half reflection lens 2 divides the laser beam 7 into a first beam irradiating the upper layer material 5, and a second beam irradiating the lower layer material 6 after passing through the half reflection lens 2 and then passing through the transparent fixing plate 4.
Further, the preset spectroscopic apparatus further includes a second total reflection mirror 3, so that after the second light beam is separated by the half reflection mirror 2, the second light beam irradiates the second total reflection mirror 3 in a direction parallel to the transparent fixing plate 4, and irradiates the second light beam to the lower layer material 6 through the transparent fixing plate 4 after being totally reflected by the second total reflection mirror 3.
S30: the first welding position of the upper layer material 5 is heated to a molten state by the irradiation of the first light beam, and the second welding position of the lower layer material 6 is heated to a molten state by the irradiation of the second light beam.
Specifically, after the laser beam 7 emitted by the laser is totally reflected to a preset spectroscopic apparatus through the first total reflection mirror 1, the laser beam 7 is split into a first beam and a second beam by the preset spectroscopic apparatus, and then the first welding position of the upper layer material 5 is heated to a molten state by irradiation of the first beam; at the same time, the second welding position of the lower layer material 6 is heated to a molten state by irradiation of the second light beam.
Further, when the high-speed galvanometer on the laser scans at a high speed according to the circular track of the upper layer material 5 or the lower layer material 6, after the laser beam 7 emitted by the laser realizes the light path of the steps S10-S30, the laser beam 7 emitted by the laser is continuously reflected to a preset beam splitting device through the first total reflection lens 1, and the laser beam 7 is split into a first beam and a second beam through the preset beam splitting device, so that the first beam continuously irradiates a first welding position of the upper layer material 5, the first beam is heated and melted after being absorbed at the first welding position, and the laser beam 7 is subjected to multiple laser scanning until the laser beam is in a molten state; the second beam is continuously irradiated to the second welding position of the lower layer material 6, the temperature is raised and melted after the second beam is absorbed at the second welding position, and the second beam is scanned by laser for a plurality of times until the second beam is in a molten state.
S40: the lower layer material 6 and the upper layer material 5 are pressed together to weld the first welding position and the second welding position in a molten state.
Specifically, after the first welding position of the upper layer material 5 is heated to a molten state by the irradiation of the first light beam, and simultaneously the second welding position of the lower layer material 6 is heated to a molten state by the irradiation of the second light beam, the lower layer material 6 is lifted up by the cylinder jig, so that the lower layer material 6 and the upper layer material 5 are pressed in the annular inner space of the transparent fixing plate 4, and the first welding position and the second welding position in the molten state are cooled under the action of pressure, thereby realizing effective welding.
In this embodiment, the laser beam 7 is divided into the first beam for welding the upper layer material 5 and the second beam for welding the lower layer material 6 by the preset beam splitting device, that is, the distributed welding can be realized by a single laser device, the first total reflection lens 1 and the preset beam splitting device, so that the number of lasers required by the laser welding when the upper layer material and the lower layer material are required to be synchronously processed is reduced, the welding synchronism is improved, and the cost is reduced. And the first light beam can be used for welding the upper layer material 5, the second light beam can be used for welding the lower layer material 6, the movement of a laser is reduced, and the laser welding speed is improved; and after the first welding position and the second welding position are heated to a molten state, the welding positions are directly pressed, so that the welding quality is improved.
It should be understood that the sequence number of each step in the foregoing embodiment does not mean that the execution sequence of each process should be determined by the function and the internal logic, and should not limit the implementation process of the embodiment of the present invention.
In one embodiment, a plastic laser welding system is provided that includes a controller for performing the plastic laser welding method of the above embodiments.
In one embodiment, a computer device is provided, which may be a server, the internal structure of which may be as shown in fig. 3. The computer device includes a processor, a memory, a network interface, and a database connected by a system bus. Wherein the processor of the computer device is configured to provide computing and control capabilities. The memory of the computer device includes a non-volatile storage medium and an internal memory. The non-volatile storage medium stores an operating system, computer programs, and a database. The internal memory provides an environment for the operation of the operating system and computer programs in the non-volatile storage media. The network interface of the computer device is used for communicating with an external terminal through a network connection. The computer program is executed by a processor to implement a plastic laser welding method.
In one embodiment, a computer device is provided that includes a memory, a processor, and a computer program stored on the memory and executable on the processor, the processor implementing the plastic laser welding method of the above embodiments when executing the computer program.
In one embodiment, a computer readable storage medium is provided, on which a computer program is stored, which when executed by a processor, implements the plastic laser welding method of the above embodiments.
Those skilled in the art will appreciate that implementing all or part of the above described methods may be accomplished by way of a computer program stored on a non-transitory computer readable storage medium, which when executed, may comprise the steps of the embodiments of the methods described above. Any reference to memory, storage, database, or other medium used in the various embodiments provided herein may include non-volatile and/or volatile memory. The nonvolatile memory can include Read Only Memory (ROM), programmable ROM (PROM), electrically Programmable ROM (EPROM), electrically Erasable Programmable ROM (EEPROM), or flash memory. Volatile memory can include Random Access Memory (RAM) or external cache memory. By way of illustration and not limitation, RAM is available in a variety of forms such as Static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), double Data Rate SDRAM (DDRSDRAM), enhanced SDRAM (ESDRAM), synchronous Link DRAM (SLDRAM), memory bus direct RAM (RDRAM), direct memory bus dynamic RAM (DRDRAM), and memory bus dynamic RAM (RDRAM), among others.
It will be apparent to those skilled in the art that, for convenience and brevity of description, only the above-described division of the functional units and modules is illustrated, and in practical application, the above-described functional distribution may be performed by different functional units and modules according to needs, i.e. the internal structure of the apparatus is divided into different functional units or modules to perform all or part of the above-described functions.
The above embodiments are only for illustrating the technical solution of the present invention, and not for limiting the same; although the 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 scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention, and are intended to be included in the scope of the present invention.
Claims (8)
1. A method of laser welding plastic comprising:
after receiving an instruction of carrying out laser welding on plastic parts to be welded, controlling a laser to emit laser beams; the plastic part to be welded comprises an upper layer material and a lower layer material; the upper layer material and the lower layer material are all round opaque plastics;
totally reflecting a laser beam emitted by a laser to preset light splitting equipment through a first total reflection lens, and splitting the laser beam into a first beam and a second beam through the preset light splitting equipment;
heating a first welding position of the upper layer material to a molten state by irradiation of the first light beam, and simultaneously heating a second welding position of the lower layer material to a molten state by irradiation of the second light beam;
pressing the lower layer material and the upper layer material to weld the first welding position and the second welding position which are in a molten state;
the first total reflection lens and the preset light splitting device are positioned between the upper layer material and the lower layer material; the upper layer material and the lower layer material are parallel and are coaxially arranged with the first total reflection lens and the preset light splitting device;
the preset light splitting device comprises a transparent fixing plate and a semi-reflecting lens; the half reflecting lens and the first total reflecting lens are arranged on the upper end face of the transparent fixing plate;
the total reflection of the laser beam emitted by the laser to the preset beam splitting device through the first total reflection lens divides the laser beam into a first beam and a second beam through the preset beam splitting device, and the method comprises the following steps:
the laser beam after the total reflection of the first total reflection lens irradiates to the half reflection lens along the direction parallel to the transparent fixing plate, and the laser beam is divided into a first beam irradiated to the upper layer material and a second beam irradiated to the lower layer material through the half reflection lens.
2. The method of claim 1, wherein the reflective surface of the first total reflection mirror is positioned on the optical path of the laser beam emitted from the laser.
3. The plastic laser welding method according to claim 1, wherein the preset spectroscopic device further comprises a second total reflection lens provided on an upper end surface of the transparent fixing plate, the second total reflection lens being located on a side of the half reflection lens away from the first total reflection lens; the second light beam separated from the half mirror plate is irradiated to the lower layer material through the transparent fixing plate after being totally reflected by the second total reflection mirror plate.
4. The plastic laser welding method of claim 3, wherein the first total reflection lens has a horn shape, and the diameter of the horn-shaped first total reflection lens gradually increases from one end connected to the transparent fixing plate toward one end far from the transparent fixing plate.
5. The plastic laser welding method according to claim 4, wherein the second total reflection lens is horn-shaped, and the diameter of the horn-shaped second total reflection lens gradually increases from one end connected with the transparent fixing plate to one end far away from the transparent fixing plate;
the first total reflection lens and the second total reflection lens are coaxially arranged; and the reflecting surface of the first total reflection lens is parallel to and opposite to the reflecting surface of the second total reflection lens.
6. The plastic laser welding method according to claim 4, wherein the half mirror is horn-shaped, and the diameter of the horn-shaped half mirror gradually increases from the end connected to the transparent fixing plate to the end far from the transparent fixing plate; the first total reflection lens and the half reflection lens are coaxially arranged;
and the second light beam separated by the semi-reflecting lens irradiates to the second total reflecting lens along the direction parallel to the transparent fixed plate, and irradiates the second light beam to the lower layer material through the transparent fixed plate after being totally reflected by the second total reflecting lens.
7. The plastic laser welding method according to claim 1, wherein the transparent fixing plate is a circular transparent acrylic plate coaxially arranged with the first total reflection lens; the inner diameter of the transparent fixing plate is larger than the diameter of the upper layer material and the diameter of the lower layer material;
the laminating the lower layer material and the upper layer material comprises the following steps:
and pressing the lower layer material and the upper layer material in the annular inner space of the transparent fixing plate.
8. The plastic laser welding method according to claim 1, wherein the laser is a power semiconductor laser, and the power of the laser is 300w to 1000w; the laser emits a laser beam having a wavelength of 915nm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010813953.5A CN114074431B (en) | 2020-08-13 | 2020-08-13 | Plastic laser welding method, system, computer equipment and storage medium |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010813953.5A CN114074431B (en) | 2020-08-13 | 2020-08-13 | Plastic laser welding method, system, computer equipment and storage medium |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114074431A CN114074431A (en) | 2022-02-22 |
| CN114074431B true CN114074431B (en) | 2024-04-12 |
Family
ID=80281220
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010813953.5A Active CN114074431B (en) | 2020-08-13 | 2020-08-13 | Plastic laser welding method, system, computer equipment and storage medium |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114074431B (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101811364A (en) * | 2009-02-25 | 2010-08-25 | 宝理塑料株式会社 | The joint method of synthetic resin |
| CN205097540U (en) * | 2015-09-16 | 2016-03-23 | 广东顺德华焯机械科技有限公司 | A laser dualbeam soldered connection for plastics both sides welding |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102004003696B4 (en) * | 2004-01-24 | 2017-02-16 | Limo Patentverwaltung Gmbh & Co. Kg | Device for simultaneous laser welding |
-
2020
- 2020-08-13 CN CN202010813953.5A patent/CN114074431B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101811364A (en) * | 2009-02-25 | 2010-08-25 | 宝理塑料株式会社 | The joint method of synthetic resin |
| CN205097540U (en) * | 2015-09-16 | 2016-03-23 | 广东顺德华焯机械科技有限公司 | A laser dualbeam soldered connection for plastics both sides welding |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114074431A (en) | 2022-02-22 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP2005088585A (en) | Method and apparatus for joining components by laser beam | |
| TW445189B (en) | Laser processing apparatus and method | |
| CN106312314A (en) | Double laser beam welding system and method | |
| JPS5891422A (en) | Light beam equalizer | |
| US20150060421A1 (en) | Laser annealing apparatus and laser annealing method | |
| CN106964893B (en) | Laser pre-treated device and processing method for optical element | |
| CN108495733B (en) | Laser processing machine and laser processing method | |
| JP5885253B2 (en) | Laser welding system and laser welding method for welding using laser beam | |
| KR102578698B1 (en) | Welding method and welding device | |
| CN104882370A (en) | Laser spike annealing using fiber lasers | |
| CN114074431B (en) | Plastic laser welding method, system, computer equipment and storage medium | |
| Zhu et al. | The conversion from a Gaussian-like beam to a flat-top beam in the laser hardening processing using a fiber coupled diode laser source | |
| CN114074430B (en) | Laser welding method, laser welding system, computer device and storage medium | |
| CN108581200A (en) | The processing method of the laser soldering device and application of multi-wavelength the output device | |
| US11945173B2 (en) | Resin member machining method, resin member machining apparatus, and resin component manufacturing method | |
| US20120241425A1 (en) | Laser machining apparatus, method for laser machining, and medium for laser machining program | |
| KR101094322B1 (en) | Laser machining apparatus and Method for manufacturing multi-layer substrate using the same | |
| CN115091768A (en) | Laser welding method, device, equipment and computer readable storage medium | |
| CN109455916A (en) | The residual stress of glass substrate, which reduces method and residual stress, reduces device | |
| WO2022183668A1 (en) | Transversal cutting method and system for transparent brittle material | |
| KR20100008048A (en) | Laser cutting method | |
| CN209532091U (en) | A kind of increasing material manufacturing equipment of three laser assisteds preheating slow cooling | |
| CN114078978A (en) | Preparation method and preparation equipment of solar cell selective emitter | |
| US11679549B2 (en) | Additive manufacturing apparatus with controller varying the beam shift of a laser based on slice model parameters of build object | |
| US20220362880A1 (en) | Laser welding apparatus and laser welding method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |