CN111062542A - LED coating path planning method based on uniformity - Google Patents
LED coating path planning method based on uniformity Download PDFInfo
- Publication number
- CN111062542A CN111062542A CN201911392249.0A CN201911392249A CN111062542A CN 111062542 A CN111062542 A CN 111062542A CN 201911392249 A CN201911392249 A CN 201911392249A CN 111062542 A CN111062542 A CN 111062542A
- Authority
- CN
- China
- Prior art keywords
- spraying
- distance
- waveform
- lines
- thickness
- 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.)
- Pending
Links
Images
Classifications
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
- G06Q10/00—Administration; Management
- G06Q10/04—Forecasting or optimisation specially adapted for administrative or management purposes, e.g. linear programming or "cutting stock problem"
- G06Q10/047—Optimisation of routes or paths, e.g. travelling salesman problem
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C11/00—Component parts, details or accessories not specifically provided for in groups B05C1/00 - B05C9/00
- B05C11/10—Storage, supply or control of liquid or other fluent material; Recovery of excess liquid or other fluent material
- B05C11/1002—Means for controlling supply, i.e. flow or pressure, of liquid or other fluent material to the applying apparatus, e.g. valves
- B05C11/1015—Means for controlling supply, i.e. flow or pressure, of liquid or other fluent material to the applying apparatus, e.g. valves responsive to a conditions of ambient medium or target, e.g. humidity, temperature ; responsive to position or movement of the coating head relative to the target
- B05C11/1021—Means for controlling supply, i.e. flow or pressure, of liquid or other fluent material to the applying apparatus, e.g. valves responsive to a conditions of ambient medium or target, e.g. humidity, temperature ; responsive to position or movement of the coating head relative to the target responsive to presence or shape of target
Landscapes
- Business, Economics & Management (AREA)
- Human Resources & Organizations (AREA)
- Engineering & Computer Science (AREA)
- Strategic Management (AREA)
- Economics (AREA)
- Marketing (AREA)
- Game Theory and Decision Science (AREA)
- Entrepreneurship & Innovation (AREA)
- Development Economics (AREA)
- Operations Research (AREA)
- Quality & Reliability (AREA)
- Tourism & Hospitality (AREA)
- Physics & Mathematics (AREA)
- General Business, Economics & Management (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
Abstract
The invention discloses a method for planning an LED coating path based on uniformity, which comprises the following steps: spraying once in a transverse single line in a test area; carrying out vertical laser thickness measurement on the sprayed single line to obtain a vertical position and thickness relation data; placing the obtained relational data on a coordinate axis, connecting the data points to obtain a waveform which is approximately in normal distribution, and obtaining the relation between any position which is approximately vertical and the thickness; calculating the obtained waveform according to a strict normal distribution rule, and searching for a proper spraying distance between two lines by simulating two lines of overlapped spraying; and taking the obtained proper spraying distance between the two lines as a distance parameter for path planning, and then spraying the 'bow' -shaped path according to the distance. The invention realizes the automatic planning of the path by simulating two lines of overlapped spraying to find the proper distance between the two lines, thereby improving the uniformity of the spraying thickness and the production efficiency.
Description
Technical Field
The invention relates to the technical field of path planning, in particular to an LED coating path planning method based on uniformity.
Background
The white light LED is a novel semiconductor all-solid-state lighting source. Compared with the traditional lighting technology, the novel light source has the advantages of high efficiency, energy conservation, long service life, small volume, easiness in maintenance, environmental friendliness, safety in use, good weather resistance and the like, and is acknowledged as the first choice of the future lighting source.
White light LED packaging is a key process for promoting rapid development of international semiconductor illumination and display, and fluorescent powder coating is a mainstream technology for realizing conversion from blue light LED to white light LED internationally at present. The white light LED that relies on traditional point gum machine to produce at present degree of consistency is poor, and adopts the coating machine that has intelligent feedback function to solve this problem well, but the path planning of coating machine also has the poor problem of degree of consistency if unreasonable, and path planning all obtains through experiment and experience at present, can not select suitable path planning and reach good degree of consistency and consuming time long along with arbitrary thickness. The path planning method of the invention can effectively solve the problem.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides a method for planning an LED coating path based on uniformity. Compared with the common mode depending on experiments and experiences, the invention can more accurately select the distance between two lines in the arch-shaped path, so that the thickness uniformity can be more effectively improved when two lines of spraying are overlapped. In addition, the distance between two lines can be quickly selected only by one-time measurement, and the efficiency can be effectively improved.
The purpose of the invention can be realized by the following technical scheme:
a method for LED coating path planning based on uniformity comprises the following steps:
spraying once in a transverse single line in a test area;
carrying out vertical laser thickness measurement on the sprayed single line to obtain a vertical position and thickness relation data;
placing the obtained relational data on a coordinate axis, connecting the data points to obtain a waveform which is approximately in normal distribution, and obtaining the relation between any position which is approximately vertical and the thickness;
calculating the obtained waveform according to a strict normal distribution rule, and searching for a proper spraying distance between two lines by simulating two lines of overlapped spraying;
and taking the obtained proper spraying distance between the two lines as a distance parameter for path planning, and then spraying the 'bow' -shaped path according to the distance.
Specifically, the step of simulating two lines of overlapped spraying to find the suitable distance between the two lines includes:
in the obtained normal distribution waveform, a point (X1, Y1) with the minimum thickness is taken on the left side of a coordinate axis, a point (X3, Y3) with the maximum middle thickness is taken, and then a point (X2, Y2) is taken on the coordinate, wherein X2 is equal to (X3-X1)/2, Y2 is a vertical coordinate corresponding to X2 on the horizontal coordinate of the waveform, and an error diff is preset;
calculating the maximum thickness difference after spraying overlapping;
judging the size relation between the maximum thickness difference and a preset error:
if delta Y is less than or equal to diff, finding a proper spraying distance between two rows, wherein the proper spraying distance between the two rows is d, X3-X2;
if DeltaY is larger than diff, the thickness difference is too large, and the distance is not suitable; and after X1 is made to be X1+1 and X2 is made to be (X3-X1)/2, the steps of calculating the maximum thickness difference and judging the relation between the maximum thickness difference and the preset error are repeated until the proper spraying distance between the two rows is found.
Further, the maximum thickness difference calculation formula is:
ΔY＝|2*Y2-Y1-Y3|
compared with the prior art, the invention has the following beneficial effects:
currently, the methods used in LED coating path planning in industry have problems of low efficiency and low thickness uniformity, which affect the production speed and quality. The method provided by the invention can be applied to the fluorescent powder coating process of the 'bow' -shaped path planning, and can effectively improve the uniformity of the LED coating thickness and the production efficiency.
Drawings
Fig. 1 is a flowchart of a method for LED coating path planning according to the present invention.
Fig. 2 is a flow chart of finding a suitable distance between two rows in the LED coating path planning provided by the present invention.
FIG. 3 is a simulated normal distribution plot of thickness versus vertical position for single line spray measurements.
Detailed Description
The present invention will be described in further detail with reference to examples and drawings, but the present invention is not limited thereto.
Examples
A method for LED coating path planning based on uniformity, as shown in fig. 1, comprising the steps of:
(1) the LED coating machine end effector was sprayed one single pass across the test area at a fixed speed.
In this embodiment, other influencing parameters under the initial path planning, such as the atomization air pressure, the height of the terminal actuator, the speed of the terminal actuator, and the like, are fixed, and the problem to be solved by the automatic path planning is to automatically select the distance between two rows of spraying in a shape like a Chinese character 'gong'.
(2) And performing vertical laser thickness measurement on the single row to obtain a vertical position and thickness relation data.
In this embodiment, the width of the single row may be measured, the width is divided into 10 equal parts, then the thickness of the 10 positions is sampled and measured, and a relation table is constructed by using the obtained single row vertical position and thickness relation data.
(3) The data in the obtained relation table is placed on a coordinate axis, and the data points are connected to obtain an approximate normal distribution waveform as shown in fig. 3, so that the relation between any position and thickness in the approximate vertical direction can be obtained through simulation.
In the present invention, if there are different factors, such as the height of the nozzle, the atomization pressure, etc., changed, the originally calculated distance will not be applicable, and needs to be recalculated, so that the waveform needs to be updated, i.e. it returns to step (1).
(4) And searching a proper point for the obtained normal distribution waveform, and searching a proper distance between two rows by simulating two rows of overlapped spraying.
In this embodiment, as shown in fig. 2, a flowchart of the step of simulating two rows of overlapped spraying to find a suitable distance between two rows includes the steps of:
(4-1) in the normal distribution waveform obtained in the step (3) and shown in fig. 3, taking a point (X1, Y1) with the minimum thickness on the left side of the coordinate axis, taking a point (X3, Y3) with the maximum middle thickness, and then taking a point (X2, Y2) on the coordinate axis, wherein X2 is equal to (X3-X1)/2, Y2 is a vertical coordinate of the waveform with the horizontal coordinate corresponding to X2, and a preset error diff is set to be 0.05mm in the embodiment;
(4-2) calculating the maximum thickness difference after spraying and overlapping, wherein the maximum thickness difference calculation formula is as follows:
ΔY＝|2*Y2-Y1-Y3|
(4-3) judging the size relation between the maximum thickness difference and a preset error:
if delta Y is less than or equal to diff, finding a proper spraying distance between two rows, wherein the proper spraying distance between the two rows is d, X3-X2;
if DeltaY is larger than diff, the thickness difference is too large, and the distance is not suitable; and after X1 is made to be X1+1 and X2 is made to be (X3-X1)/2, the steps (4-2) - (4-3) are repeated until a proper spraying distance between the two rows is found.
(5) And taking the obtained proper spraying distance between the two lines as a distance parameter for path planning, and then spraying the 'bow' -shaped path according to the distance. The following slight error is due to the fact that the fluidity of the phosphor paste fluid is automatically reduced more.
The above embodiments are preferred embodiments of the present invention, but the present invention is not limited to the above embodiments, and any other changes, modifications, substitutions, combinations, and simplifications which do not depart from the spirit and principle of the present invention should be construed as equivalents thereof, and all such changes, modifications, substitutions, combinations, and simplifications are intended to be included in the scope of the present invention.
Claims (4)
1. A method for planning an LED coating path based on uniformity is characterized by comprising the following steps:
spraying once in a transverse single line in a test area;
carrying out vertical laser thickness measurement on the sprayed single line to obtain a vertical position and thickness relation data;
placing the obtained relational data on a coordinate axis, connecting the data points to obtain a waveform which is approximately in normal distribution, and obtaining the relation between any position which is approximately vertical and the thickness;
calculating the obtained waveform according to a strict normal distribution rule, and searching for a proper spraying distance between two lines by simulating two lines of overlapped spraying;
and taking the obtained proper spraying distance between the two lines as a distance parameter for path planning, and then spraying the 'bow' -shaped path according to the distance.
2. Method according to claim 1, characterized in that after obtaining the approximately normal distribution of the waveform, if there are different factors such as the height of the nozzle or the atomizing air pressure, the originally calculated distance is no longer applicable and needs to be recalculated, so that the waveform needs to be updated, in particular the obtained waveform is discarded, and the procedure of spraying once in a single transverse row in the test area is returned.
3. The method of claim 1, wherein the step of simulating two overlapping rows of paint to find the appropriate distance between the two rows comprises:
in the obtained normal distribution waveform, a point (X1, Y1) with the minimum thickness is taken on the left side of a coordinate axis, a point (X3, Y3) with the maximum middle thickness is taken, and then a point (X2, Y2) is taken on the coordinate, wherein X2 is equal to (X3-X1)/2, Y2 is a vertical coordinate corresponding to X2 on the horizontal coordinate of the waveform, and an error diff is preset;
calculating the maximum thickness difference after spraying overlapping;
judging the size relation between the maximum thickness difference and a preset error:
if delta Y is less than or equal to diff, finding a proper spraying distance between two rows, wherein the proper spraying distance between the two rows is d, X3-X2;
if DeltaY is larger than diff, the thickness difference is too large, and the distance is not suitable; and after X1 is made to be X1+1 and X2 is made to be (X3-X1)/2, the steps of calculating the maximum thickness difference and judging the relation between the maximum thickness difference and the preset error are repeated until the proper spraying distance between the two rows is found.
4. The method of claim 3, wherein the maximum thickness difference calculation is formulated as:
ΔY＝|2*Y2-Y1-Y3|。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911392249.0A CN111062542A (en) | 2019-12-30 | 2019-12-30 | LED coating path planning method based on uniformity |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911392249.0A CN111062542A (en) | 2019-12-30 | 2019-12-30 | LED coating path planning method based on uniformity |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111062542A true CN111062542A (en) | 2020-04-24 |
Family
ID=70304550
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911392249.0A Pending CN111062542A (en) | 2019-12-30 | 2019-12-30 | LED coating path planning method based on uniformity |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111062542A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112893040A (en) * | 2021-01-05 | 2021-06-04 | 佛山市广成铝业有限公司 | Spraying method based on uniformity |
| CN114985227A (en) * | 2022-06-16 | 2022-09-02 | 安徽康宏精密制造有限公司 | Metal surface treatment spraying method and spraying equipment |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101367076A (en) * | 2008-09-19 | 2009-02-18 | 江苏大学 | Variate spray coating method for static electricity spraying robot with non-regulation planar polygon |
| WO2010082335A1 (en) * | 2009-01-15 | 2010-07-22 | トヨタ自動車株式会社 | Method of detecting the width of a coated film and detection device used in said detection method |
| CN105478285A (en) * | 2016-02-14 | 2016-04-13 | 中国人民解放军后勤工程学院 | Air spraying irregular curved tube inner wall thick coating track planning method |
-
2019
- 2019-12-30 CN CN201911392249.0A patent/CN111062542A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101367076A (en) * | 2008-09-19 | 2009-02-18 | 江苏大学 | Variate spray coating method for static electricity spraying robot with non-regulation planar polygon |
| WO2010082335A1 (en) * | 2009-01-15 | 2010-07-22 | トヨタ自動車株式会社 | Method of detecting the width of a coated film and detection device used in said detection method |
| CN105478285A (en) * | 2016-02-14 | 2016-04-13 | 中国人民解放军后勤工程学院 | Air spraying irregular curved tube inner wall thick coating track planning method |
Non-Patent Citations (1)
| Title |
|---|
| 王慧琛: ""喷漆机器人运动轨迹规划及控制"", 《中国优秀博硕士学位论文全文数据库（硕士） 信息科技辑》 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112893040A (en) * | 2021-01-05 | 2021-06-04 | 佛山市广成铝业有限公司 | Spraying method based on uniformity |
| CN114985227A (en) * | 2022-06-16 | 2022-09-02 | 安徽康宏精密制造有限公司 | Metal surface treatment spraying method and spraying equipment |
| CN114985227B (en) * | 2022-06-16 | 2023-09-29 | 安徽康宏精密制造有限公司 | Metal surface treatment spraying method and spraying equipment |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN111062542A (en) | LED coating path planning method based on uniformity | |
| WO2018023853A1 (en) | Spraying and printing system for wall surface and spraying method | |
| WO2020258921A1 (en) | White balance correction method, device and system for projection device | |
| CN104879711B (en) | A kind of even optical lens design method of double free-form surface LEDs based on cubic spline | |
| CN109719405A (en) | Laser processing | |
| CN104865453A (en) | Terahertz on-chip scattering parameter measurement calibration piece and preparation method thereof | |
| CN103817052A (en) | Fully-automatic LED phosphor coating apparatus and control method thereof | |
| CN109256051A (en) | A kind of COB display screen and its packaging method | |
| CN207123259U (en) | One kind automation workpiece calibration and spraying line | |
| CN106076737A (en) | A kind of Glue dripping head intelligence calibrating installation and using method | |
| CN205183008U (en) | A nanometer solution automatic spraying device for SMT laser template | |
| CN109543267A (en) | Handicraft surface based on image procossing sprays simulation and optimization method | |
| CN102728507B (en) | Fluorescent powder coating equipment and method for detecting white light color temperature in real time in manufacturing process | |
| CN1776288A (en) | Luminous lens of high-power LED white light source | |
| CN105486610B (en) | A kind of preparation and hydrophobicity performance evaluation method of hydrophobic coat | |
| CN105849658B (en) | Calibration method for viscous fluid dispensing system | |
| CN105116354A (en) | Online testing apparatus and online testing method for LED encapsulation | |
| CN104226568A (en) | LED (Light emitting diode) fluorescent powder coating method and system based on 3D printing principle | |
| Rathore et al. | Modelling the impact of climate change on rice production in India | |
| CN204666731U (en) | Terahertz is at sheet multiport circuit calibrating device | |
| JP2010042393A (en) | Method for designating repair section on substrate | |
| CN204788281U (en) | Laser ray position control device | |
| CN104576884A (en) | Automatic testing and powder-supplementing method and equipment for COB optical assembly | |
| CN204583602U (en) | A kind of intelligent coating machine | |
| CN107665939B (en) | Preparation method of white light LED chip |
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 | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20200424 |