CN111843241A - Laser cutting method for flexible screen of mobile phone - Google Patents
Laser cutting method for flexible screen of mobile phone Download PDFInfo
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- CN111843241A CN111843241A CN202010849306.XA CN202010849306A CN111843241A CN 111843241 A CN111843241 A CN 111843241A CN 202010849306 A CN202010849306 A CN 202010849306A CN 111843241 A CN111843241 A CN 111843241A
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- cutting
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- flexible screen
- laser cutting
- screen
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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
- B23K26/36—Removing material
- B23K26/38—Removing material by boring or cutting
-
- 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
- B23K26/08—Devices involving relative movement between laser beam and workpiece
- B23K26/0869—Devices involving movement of the laser head in at least one axial direction
- B23K26/0876—Devices involving movement of the laser head in at least one axial direction in at least two axial directions
- B23K26/0884—Devices involving movement of the laser head in at least one axial direction in at least two axial directions in at least in three axial directions, e.g. manipulators, robots
-
- 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
- B23K26/12—Working by laser beam, e.g. welding, cutting or boring in a special atmosphere, e.g. in an enclosure
-
- 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
- B23K26/36—Removing material
- B23K26/40—Removing material taking account of the properties of the material involved
- B23K26/402—Removing material taking account of the properties of the material involved involving non-metallic material, e.g. isolators
-
- 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
Abstract
The invention discloses a laser cutting method of a mobile phone flexible screen, relates to the technical field of laser cutting, and aims to solve the problems that the cutting precision is easily influenced along with the increase of the using time in the laser cutting process of the existing mobile phone flexible screen, and meanwhile, the preparation work before cutting is not sufficient. Step 1, primarily cutting a flexible screen; step 2, automatically feeding the flexible screen; step 3, setting parameters according to the length, the width and the thickness of the flexible screen; step 4, programming according to the numerical value of the screen to be cut and the shape to be cut; step 5, carrying out laser cutting treatment; step 6, polishing corners; and 7, performing quality inspection.
Description
Technical Field
The invention relates to the technical field of laser cutting, in particular to a laser cutting method of a mobile phone flexible screen.
Background
The laser cutting is to focus a CO2 laser beam on the surface of a material by using a focusing lens to melt the material, blow away the melted material by using compressed gas coaxial with the laser beam, and make the laser beam and the material move relatively along a certain track, thereby forming a cut with a certain shape. The laser cutting technology is widely applied to the processing of metal and nonmetal materials, can greatly reduce the processing time, reduce the processing cost and improve the quality of workpieces.
However, the cutting precision in the laser cutting process of the existing mobile phone flexible screen is easily affected along with the increase of the use time, and meanwhile, the preparation work before cutting is not sufficient; therefore, the existing requirements are not met, and a laser cutting method of the flexible screen of the mobile phone is provided for the requirements.
Disclosure of Invention
The invention aims to provide a laser cutting method of a mobile phone flexible screen, which aims to solve the problems that the cutting precision is easily influenced along with the increase of the using time in the laser cutting process of the existing mobile phone flexible screen in the background technology, and the preparation work before cutting is not enough.
In order to achieve the purpose, the invention provides the following technical scheme: a laser cutting method of a mobile phone flexible screen comprises the following steps:
step 1, primarily cutting a flexible screen, namely cutting a flexible plate according to the size of the required flexible screen, cutting the plate into convenient and fast performance convenient for later laser cutting, selecting laser for cutting, selecting a common cutter for cutting, and setting the cutting length and width according to the later cutting requirement;
step 2, automatically feeding the flexible screen, uniformly placing the primarily cut materials above a conveyor belt, manually placing the materials, clamping and placing the materials above a laser cutting machine through a mechanical arm, and adsorbing the materials by using a vacuum chuck for clamping, so that the clamping flexibility can be better guaranteed, and the materials can be effectively prevented from being damaged;
step 3, setting parameters according to the length, the width and the thickness of the flexible screen, and inputting the length, the width and the thickness of the material into the laser cutting machine so that the laser cutting machine can calculate later-stage cutting data to ensure the cutting precision;
step 4, programming according to the numerical value of the screen to be cut and the shape to be cut, programming by using off-line software, drawing by using alma, drawing by using software steel structure CAD for the cutting drawing, automatically drawing an integral component drawing, an expansion drawing and a cutting drawing blanking drawing by inputting parameters, automatically extracting the outline of the drawing, and directly transmitting the drawing by using a computer data line or transmitting the drawing by using a U disk to be led into the laser cutting machine after the programming by using the software is finished;
step 5, carrying out laser cutting treatment, fixing the position of the screen, setting a cutting coordinate system, adjusting the position of an xyz shaft of a laser cutting head to cut, carrying out cutting forming by the laser cutting machine according to the previous programming, and after the cutting is finished, sucking dust on the surface and cut residual materials by a dust collector;
step 6, polishing corners, chamfering the flexible screen by using a laser cutting head, and selecting the size of the chamfer according to the size requirement of the screen;
and 7, carrying out quality inspection, clamping and guiding out the cut screen by using a mechanical arm, carrying out quality inspection after guiding out, observing whether scratches exist on the outer surface or not by naked eyes or not and whether curled edges appear or not, judging whether the cutting basic shape is correct or not, carrying out precision detection after the detection by naked eyes is finished, and detecting the length, the width and the thickness of the screen by using a vernier caliper.
Preferably, the laser cutting treatment in step 5 specifically includes:
step 5-1, fixing the position of the screen, setting a cutting coordinate system and performing adsorption and fixation by using a bottom sucker;
5-2, after the screen is fixed, the position of the laser cutting head can be adjusted to set a coordinate system, and the precision performance of later-stage cutting is guaranteed;
step 5-3, cutting, wherein laser with the shortest wavelength (the wavelength is shorter than 350nm) is used in the cutting process, and the excimer laser has the characteristics of high energy and power due to the fact that the excimer laser has the short wavelength (308 nm and 248nm are commonly used in the laser stripping process);
and 5-4, treating the cut waste materials, adsorbing dust on the surface of the flexible screen through dust collection equipment, and collecting leftover materials through the dust collection equipment or excess material collection equipment, so that the working environment for cutting the next material can be better ensured to be tidier.
Preferably, before cutting in step 5-3, the cutting light path needs to be adjusted to ensure the cutting accuracy, firstly, whether the laser can hit the first reflector is checked, and if the laser cannot hit the first reflector, the position of the first reflector is adjusted; secondly, checking whether the laser can hit the second and third reflecting mirrors, if not, adjusting M1, M2 and M3 screws behind the upper reflecting mirror, thirdly, moving the laser head to an upper corner on one side to hit a laser spot again, observing whether the laser head is at the same position as the last hit spot, and if not, adjusting M1, M2 and M3 screws of the second reflecting mirror to make the hit spot and the upper right corner point at the same position; fourthly, pasting at least two layers of double faced adhesive tapes at the light inlet of the laser lens barrel, moving the laser head to the upper right corner of the table top, and pressing a TEST key of the control panel to form a laser spot; fifthly, moving the laser head to the lower corner of one side, observing whether the laser head is dotted at the same position with the upper corner of the other side, and adjusting a second reflector; sixthly, repeating the fourth step and the fifth step to perform repeated adjustment, so that three laser points are finally printed at the same position; and seventhly, checking whether the focusing is in the center, placing a mirror vertically below the focusing mirror, pressing a TEST key to beat laser on a transparent plastic sheet closely attached to the lens cone below the lens cone (namely, holding by hand), and checking whether a laser point is hit at the center of the focusing mirror, wherein the holding plastic sheet should be carefully burned by the laser at the moment, and the hand is not placed in the range of the vertical plane of the lens.
Preferably, the reasonable tolerance checked in the step 7 is set to be +/-0.02 mm in cutting precision, and the appearance is free of a melted edge, a flanging, yellowing and a folded edge and is smooth in section.
Preferably, the diameter of the chamfer in the step 6 is set to be between 1 and 3 cm.
Preferably, the cutting allowance in the step 1 is set to be 5CM larger than the original size.
Preferably, the conveying efficiency of the transmission belt in the step 2 can be properly adjusted according to the cutting time, and is normally set to be 1 m/min.
Compared with the prior art, the invention has the beneficial effects that:
1. according to the invention, the cutting light path is required to be adjusted before cutting, so that the accuracy of the cutting position of the laser cutting head can be better ensured, the overall structure precision is better improved, the flexible performance of later-stage cutting can be improved to a certain extent by performing primary cutting on the flexible screen before cutting, and the moving performance of components is more stable;
2. according to the invention, through setting parameters and confirming a coordinate system before cutting, the automatic cutting performance of the laser cutting machine can be better ensured, through quality inspection after cutting is finished, the service performance of the flexible screen after cutting can be better ensured, and later-stage manufacture is more comprehensive and higher in practicability.
Drawings
FIG. 1 is a process flow diagram of a laser cutting method for a mobile phone flexible screen according to the present invention;
FIG. 2 is a flow chart of a laser cutting process according to 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 only a part of the embodiments of the present invention, and not all of the embodiments.
Referring to fig. 1-2, an embodiment of the present invention is shown: a laser cutting method of a mobile phone flexible screen comprises the following steps:
step 1, primarily cutting a flexible screen, namely cutting a flexible plate according to the size of the required flexible screen, cutting the plate into convenient and fast performance convenient for later laser cutting, selecting laser for cutting, selecting a common cutter for cutting, and setting the cutting length and width according to the later cutting requirement;
step 2, automatically feeding the flexible screen, uniformly placing the primarily cut materials above a conveyor belt, manually placing the materials, clamping and placing the materials above a laser cutting machine through a mechanical arm, and adsorbing the materials by using a vacuum chuck for clamping, so that the clamping flexibility can be better guaranteed, and the materials can be effectively prevented from being damaged;
step 3, setting parameters according to the length, the width and the thickness of the flexible screen, and inputting the length, the width and the thickness of the material into the laser cutting machine so that the laser cutting machine can calculate later-stage cutting data to ensure the cutting precision;
step 4, programming according to the numerical value of the screen to be cut and the shape to be cut, programming by using off-line software, drawing by using alma, drawing by using software steel structure CAD for the cutting drawing, automatically drawing an integral component drawing, an expansion drawing and a cutting drawing blanking drawing by inputting parameters, automatically extracting the outline of the drawing, and directly transmitting the drawing by using a computer data line or transmitting the drawing by using a U disk to be led into the laser cutting machine after the programming by using the software is finished;
step 5, carrying out laser cutting treatment, fixing the position of the screen, setting a cutting coordinate system, adjusting the position of an xyz shaft of a laser cutting head to cut, carrying out cutting forming by the laser cutting machine according to the previous programming, and after the cutting is finished, sucking dust on the surface and cut residual materials by a dust collector;
step 6, polishing corners, chamfering the flexible screen by using a laser cutting head, and selecting the size of the chamfer according to the size requirement of the screen;
and 7, carrying out quality inspection, clamping and guiding out the cut screen by using a mechanical arm, carrying out quality inspection after guiding out, observing whether scratches exist on the outer surface or not by naked eyes or not and whether curled edges appear or not, judging whether the cutting basic shape is correct or not, carrying out precision detection after the detection by naked eyes is finished, and detecting the length, the width and the thickness of the screen by using a vernier caliper.
Further, the laser cutting processing in the step 5 specifically includes:
step 5-1, fixing the position of the screen, setting a cutting coordinate system and performing adsorption and fixation by using a bottom sucker;
5-2, after the screen is fixed, the position of the laser cutting head can be adjusted to set a coordinate system, and the precision performance of later-stage cutting is guaranteed;
step 5-3, cutting, wherein laser with the shortest wavelength (the wavelength is shorter than 350nm) is used in the cutting process, and the excimer laser has the characteristics of high energy and power due to the fact that the excimer laser has the short wavelength (308 nm and 248nm are commonly used in the laser stripping process);
and 5-4, treating the cut waste materials, adsorbing dust on the surface of the flexible screen through dust collection equipment, and collecting leftover materials through the dust collection equipment or excess material collection equipment, so that the working environment for cutting the next material can be better ensured to be tidier.
Further, adjusting a cutting light path before cutting in the step 5-3 to guarantee cutting accuracy, firstly checking whether the laser can hit the first reflector, and if not, adjusting the position of the first reflector; secondly, checking whether the laser can hit the second and third reflecting mirrors, if not, adjusting M1, M2 and M3 screws behind the upper reflecting mirror, thirdly, moving the laser head to an upper corner on one side to hit a laser spot again, observing whether the laser head is at the same position as the last hit spot, and if not, adjusting M1, M2 and M3 screws of the second reflecting mirror to make the hit spot and the upper right corner point at the same position; fourthly, pasting at least two layers of double faced adhesive tapes at the light inlet of the laser lens barrel, moving the laser head to the upper right corner of the table top, and pressing a TEST key of the control panel to form a laser spot; fifthly, moving the laser head to the lower corner of one side, observing whether the laser head is dotted at the same position with the upper corner of the other side, and adjusting a second reflector; sixthly, repeating the fourth step and the fifth step to perform repeated adjustment, so that three laser points are finally printed at the same position; and seventhly, checking whether the focusing is in the center, placing a mirror vertically below the focusing mirror, pressing a TEST key to beat laser on a transparent plastic sheet closely attached to the lens cone below the lens cone (namely, holding by hand), and checking whether a laser point is hit at the center of the focusing mirror, wherein the holding plastic sheet should be carefully burned by the laser at the moment, and the hand is not placed in the range of the vertical plane of the lens.
Furthermore, the reasonable tolerance set in the step 7 is cutting precision +/-0.02 mm, and the appearance has no melted edge, flanging, yellowing and folding edges, and the section is smooth.
Further, the diameter of the chamfer in step 6 is set to be between 1-3 cm.
Further, the cutting allowance in the step 1 is set to be larger than the original size of 5 CM.
Further, the transmission efficiency of the transmission belt in the step 2 can be properly adjusted according to the cutting time, and is normally set to be 1 m/min.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (7)
1. A laser cutting method of a mobile phone flexible screen is characterized by comprising the following steps: the method comprises the following steps:
step 1, primarily cutting a flexible screen, namely cutting a flexible plate according to the size of the required flexible screen, cutting the plate into convenient and fast performance convenient for later laser cutting, selecting laser for cutting, selecting a common cutter for cutting, and setting the cutting length and width according to the later cutting requirement;
step 2, automatically feeding the flexible screen, uniformly placing the primarily cut materials above a conveyor belt, manually placing the materials, clamping and placing the materials above a laser cutting machine through a mechanical arm, and adsorbing the materials by using a vacuum chuck for clamping, so that the clamping flexibility can be better guaranteed, and the materials can be effectively prevented from being damaged;
step 3, setting parameters according to the length, the width and the thickness of the flexible screen, and inputting the length, the width and the thickness of the material into the laser cutting machine so that the laser cutting machine can calculate later-stage cutting data to ensure the cutting precision;
step 4, programming according to the numerical value of the screen to be cut and the shape to be cut, programming by using off-line software, drawing by using alma, drawing by using software steel structure CAD for the cutting drawing, automatically drawing an integral component drawing, an expansion drawing and a cutting drawing blanking drawing by inputting parameters, automatically extracting the outline of the drawing, and directly transmitting the drawing by using a computer data line or transmitting the drawing by using a U disk to be led into the laser cutting machine after the programming by using the software is finished;
step 5, carrying out laser cutting treatment, fixing the position of the screen, setting a cutting coordinate system, adjusting the position of an xyz shaft of a laser cutting head to cut, carrying out cutting forming by the laser cutting machine according to the previous programming, and after the cutting is finished, sucking dust on the surface and cut residual materials by a dust collector;
step 6, polishing corners, chamfering the flexible screen by using a laser cutting head, and selecting the size of the chamfer according to the size requirement of the screen;
and 7, carrying out quality inspection, clamping and guiding out the cut screen by using a mechanical arm, carrying out quality inspection after guiding out, observing whether scratches exist on the outer surface or not by naked eyes or not and whether curled edges appear or not, judging whether the cutting basic shape is correct or not, carrying out precision detection after the detection by naked eyes is finished, and detecting the length, the width and the thickness of the screen by using a vernier caliper.
2. The laser cutting method of the mobile phone flexible screen according to claim 1, characterized in that: the laser cutting treatment in the step 5 specifically includes:
step 5-1, fixing the position of the screen, setting a cutting coordinate system and performing adsorption and fixation by using a bottom sucker;
5-2, after the screen is fixed, the position of the laser cutting head can be adjusted to set a coordinate system, and the precision performance of later-stage cutting is guaranteed;
step 5-3, cutting, wherein laser with the shortest wavelength (the wavelength is shorter than 350nm) is used in the cutting process, and the excimer laser has the characteristics of high energy and power due to the fact that the excimer laser has the short wavelength (308 nm and 248nm are commonly used in the laser stripping process);
and 5-4, treating the cut waste materials, adsorbing dust on the surface of the flexible screen through dust collection equipment, and collecting leftover materials through the dust collection equipment or excess material collection equipment, so that the working environment for cutting the next material can be better ensured to be tidier.
3. The laser cutting method of the mobile phone flexible screen according to claim 2, characterized in that: adjusting a cutting light path before cutting in the step 5-3 to ensure the cutting accuracy, firstly checking whether the laser can hit the first reflector, and if not, adjusting the position of the first reflector; secondly, checking whether the laser can hit the second and third reflecting mirrors, if not, adjusting M1, M2 and M3 screws behind the upper reflecting mirror, thirdly, moving the laser head to an upper corner on one side to hit a laser spot again, observing whether the laser head is at the same position as the last hit spot, and if not, adjusting M1, M2 and M3 screws of the second reflecting mirror to make the hit spot and the upper right corner point at the same position; fourthly, pasting at least two layers of double faced adhesive tapes at the light inlet of the laser lens barrel, moving the laser head to the upper right corner of the table top, and pressing a TEST key of the control panel to form a laser spot; fifthly, moving the laser head to the lower corner of one side, observing whether the laser head is dotted at the same position with the upper corner of the other side, and adjusting a second reflector; sixthly, repeating the fourth step and the fifth step to perform repeated adjustment, so that three laser points are finally printed at the same position; and seventhly, checking whether the focusing is in the center, placing a mirror vertically below the focusing mirror, pressing a TEST key to beat laser on a transparent plastic sheet closely attached to the lens cone below the lens cone (namely, holding by hand), and checking whether a laser point is hit at the center of the focusing mirror, wherein the holding plastic sheet should be carefully burned by the laser at the moment, and the hand is not placed in the range of the vertical plane of the lens.
4. The laser cutting method of the mobile phone flexible screen according to claim 1, characterized in that: the reasonable tolerance set for the test in the step 7 is +/-0.02 mm in cutting precision, and the appearance has no melted edge, flanging, yellowing and folding edges, and meanwhile, the section is smooth.
5. The laser cutting method of the mobile phone flexible screen according to claim 1, characterized in that: the diameter of the chamfer in the step 6 is set to be between 1 and 3 cm.
6. The laser cutting method of the mobile phone flexible screen according to claim 1, characterized in that: and in the step 1, the cutting allowance is set to be 5CM larger than the original size.
7. The laser cutting method of the mobile phone flexible screen according to claim 1, characterized in that: the conveying efficiency of the conveying belt in the step 2 can be properly adjusted according to the cutting time, and is normally set to be 1 m/min.
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| CN112390519A (en) * | 2020-10-31 | 2021-02-23 | 江苏汇鼎光学眼镜有限公司 | Lens cutting method |
| CN112620970A (en) * | 2020-11-23 | 2021-04-09 | 泰州芯源半导体科技有限公司 | Laser cutting system based on size detection |
| CN113059264A (en) * | 2021-03-31 | 2021-07-02 | 深圳市鸿昇自动化设备有限公司 | Laser flexible screen cutting device and cutting method |
| CN114985956A (en) * | 2021-02-20 | 2022-09-02 | 大族激光科技产业集团股份有限公司 | Laser cutting device and method for display screen |
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| CN114985956A (en) * | 2021-02-20 | 2022-09-02 | 大族激光科技产业集团股份有限公司 | Laser cutting device and method for display screen |
| CN113059264A (en) * | 2021-03-31 | 2021-07-02 | 深圳市鸿昇自动化设备有限公司 | Laser flexible screen cutting device and cutting method |
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Application publication date: 20201030 |
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| RJ01 | Rejection of invention patent application after publication |