CN108871269B - 3D printing laser galvanometer horizontal detection method - Google Patents
3D printing laser galvanometer horizontal detection method Download PDFInfo
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- CN108871269B CN108871269B CN201810214840.6A CN201810214840A CN108871269B CN 108871269 B CN108871269 B CN 108871269B CN 201810214840 A CN201810214840 A CN 201810214840A CN 108871269 B CN108871269 B CN 108871269B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C9/00—Measuring inclination, e.g. by clinometers, by levels
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Abstract
The invention relates to a 3D printing laser galvanometer horizontal detection method, which comprises the steps of establishing a cross coordinate after a printing platform is confirmed to be in a horizontal state, controlling laser to print a first cross track on the printing platform, then controlling the cross coordinate to rotate by 0-90 degrees, controlling the laser to continuously print a second cross track on the printing platform, and finally observing whether the intersection point of the first cross track and the second cross track is overlapped or not so as to judge whether the galvanometer is installed horizontally or not. When the intersection points of the first cross-shaped track and the second cross-shaped track are superposed, the galvanometer is installed horizontally; when the cross point of the first cross-shaped track and the second cross-shaped track is not coincident, the vibrating mirror is installed out of level, and therefore the purpose of quickly and automatically detecting whether the vibrating mirror is installed horizontally can be achieved, manual testing is avoided, labor cost and testing time are greatly reduced, and printing yield and working efficiency are improved.
Description
Technical Field
The invention relates to the technical field of 3D printing, in particular to a method for detecting the level of a 3D printing laser galvanometer.
Background
The powder spreading type 3D printing is to irradiate metal powder by using a focused low-power-density laser beam, rapidly sinter the irradiated metal powder, and realize sintering and forming of the metal powder and layer-by-layer printing by controlling the oxygen content, air pressure and temperature, so as to finally realize 3D printing. The process can affect the printing effect of the workpiece because the galvanometer is installed out of level and is not printed at the designated position, and if the galvanometer is not installed at the designated position, the workpiece does not reach the designated position during printing, so that the final effect of printing the workpiece is affected.
Disclosure of Invention
The invention aims to solve the technical problem of providing a 3D printing laser galvanometer level detection method, and aims to solve the problem of poor printing effect caused by non-level installation of a galvanometer.
The technical scheme adopted by the invention for solving the technical problems is as follows: the method is based on a powder spreading type 3D laser printing machine and comprises the following steps:
s1, confirming that the printing platform is in a horizontal state;
s2, establishing a cross coordinate, and controlling laser to print a first cross track on the printing platform;
s3, controlling the cross coordinate to rotate by 0-90 degrees, and controlling the laser to continuously print a second cross-shaped track on the printing platform;
and S4, observing whether the intersection point of the first cross-shaped track and the second cross-shaped track is superposed or not to judge whether the galvanometer is installed horizontally or not.
Further, in step S1, the levelness of the printing platform is detected by the level meter.
Further, before step S2, parameters of laser power, laser Mark speed, laser on-delay, and laser off-delay are preset.
Further, the first cross-shaped track and the second cross-shaped track are both composed of two mutually perpendicular line segments printed by laser.
Further, a sample plate is placed on the printing platform, and the laser prints a first cross-shaped track and a second cross-shaped track on the sample plate.
Further, in step S3, specifically, the cross coordinate is controlled to rotate by 45 °, and the laser is controlled to continue printing the twentieth trace on the printing platform.
Further, in step S3, specifically, the cross coordinate is controlled to rotate by 30 °, and the laser is controlled to continue printing the twentieth trace on the printing platform.
Further, in step S3, specifically, the cross coordinate is controlled to rotate by 60 °, and the laser is controlled to continue printing the twentieth trace on the printing platform.
Compared with the prior art, the 3D printing laser galvanometer horizontal detection method provided by the invention has the advantages that after the printing platform is confirmed to be in the horizontal state, the laser is controlled to print the first cross-shaped track on the printing platform, then the cross-shaped coordinate is controlled to rotate by 0-90 degrees, the laser is controlled to continuously print the second cross-shaped track on the printing platform, and finally whether the intersection point of the first cross-shaped track and the second cross-shaped track is overlapped or not is observed to judge whether the galvanometer is installed horizontally or not. When the intersection points of the first cross-shaped track and the second cross-shaped track are superposed, the galvanometer is installed horizontally; when the cross point of the first cross-shaped track and the second cross-shaped track is not coincident, the vibrating mirror is installed out of level, and therefore the purpose of quickly and automatically detecting whether the vibrating mirror is installed horizontally can be achieved, manual testing is avoided, labor cost and testing time are greatly reduced, and printing yield and working efficiency are improved.
Drawings
The invention will be further described with reference to the accompanying drawings and examples, in which:
FIG. 1 is a schematic structural diagram of a powder-laying 3D laser printing machine provided by the invention;
FIG. 2 is a schematic view of the intersection of a first criss-cross trajectory coinciding with a second criss-cross trajectory;
fig. 3 is a schematic diagram of the intersection of the first cross-shaped track and the second cross-shaped track not being coincident.
Detailed Description
The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings.
As shown in fig. 1, the invention provides a method for detecting the level of a 3D printing laser galvanometer, which is based on a powder laying type 3D laser printing machine and comprises the following steps: s1, confirming that the printing platform 10 is in a horizontal state; s2, establishing a cross coordinate, and controlling laser to print a first cross track 20 on the printing platform 10; s3, controlling the cross coordinate to rotate by 0-90 degrees, and controlling the laser to continuously print the second cross-shaped track 30 on the printing platform 10; and S4, observing whether the intersection point of the first cross-shaped track 20 and the second cross-shaped track 30 is superposed or not to judge whether the galvanometer 40 is installed horizontally or not. As shown in fig. 2, when the intersection of the first cross-shaped track 20 and the second cross-shaped track 30 coincides, the galvanometer 40 is installed horizontally; as shown in fig. 3, when the intersection point of the first cross-shaped track 20 and the second cross-shaped track 30 is not coincident, the installation of the vibrating mirror 40 is not horizontal, so that the purpose of quickly and automatically detecting whether the installation of the vibrating mirror 40 is horizontal can be achieved, manual testing is avoided, labor cost and testing time are greatly reduced, and printing yield and working efficiency are improved.
Further, in step S1, the levelness of the printing platform 10 is detected by the level meter. When the printing platform 10 is not horizontal, the printing platform 10 needs to be adjusted to be horizontal. The first cross-shaped track 20 and the second cross-shaped track 30 are both composed of two mutually perpendicular line segments printed by laser. The sample plate 50 is placed on the printing platform 10, the first cross-shaped track 20 and the second cross-shaped track 30 are printed on the sample plate 50 through laser, and the printing result can be observed conveniently through the sample plate 50. After printing, the sample plate 50 is taken out, and whether the intersection of the first cross-shaped trajectory 20 and the second cross-shaped trajectory 30 is overlapped or not is observed under magnification.
Further, before step S2, parameters of laser power, laser Mark speed, laser on-delay, and laser off-delay are preset, so as to print the cross shape with the laser.
In the present embodiment, in step S3, the laser is controlled to continue printing the twentieth trace 30 on the printing platform 10, specifically controlling the cross coordinate to rotate by 0-90 °. For example, the cross coordinates may be rotated by 30 °, 45 °, 60 °, etc.
Compared with the prior art, the 3D printing laser galvanometer horizontal detection method provided by the invention has the advantages that after the printing platform 10 is confirmed to be in a horizontal state, the system establishes the cross coordinate, controls the laser to print the first cross-shaped track 20 on the printing platform 10, then controls the cross coordinate to rotate by 0-90 degrees, and controls the laser to continuously print the second cross-shaped track 30 on the printing platform 10. Namely, the galvanometer 40 is kept unchanged, the angle of the cross coordinate in the system is changed, different crosses are printed, and finally whether the intersection points of the first cross-shaped track 20 and the second cross-shaped track 30 are overlapped or not is observed to judge whether the galvanometer 40 is installed horizontally or not. The principle is that after the cross coordinate in the system rotates, laser can be emitted from different positions of the galvanometer 40, and when the intersection point of the first cross-shaped track 20 and the second cross-shaped track 30 is superposed, the galvanometer 40 is installed horizontally; when the intersection point of the first cross-shaped track 20 and the second cross-shaped track 30 is not coincident, the vibrating mirror 40 is installed out of level, so that the aim of quickly and automatically detecting whether the vibrating mirror 40 is installed horizontally can be achieved, manual testing is avoided, labor cost and testing time are greatly reduced, and printing yield and working efficiency are improved.
It should be understood that the above embodiments are only used for illustrating the technical solutions of the present invention, and not for limiting the same, and those skilled in the art can modify the technical solutions described in the above embodiments, or make equivalent substitutions for some technical features; and all such modifications and alterations are intended to fall within the scope of the appended claims.
Claims (7)
1. A3D printing laser galvanometer horizontal detection method is based on a powder laying type 3D laser printing machine and is characterized by comprising the following steps:
s1, confirming that the printing platform is in a horizontal state;
s2, establishing a cross coordinate, and controlling laser to print a first cross track on the printing platform;
s3, rotating the cross coordinate by 0-90 degrees, excluding 0-90 degrees, and controlling the laser to continuously print a second cross-shaped track on the printing platform;
and S4, observing whether the intersection point of the first cross-shaped track and the second cross-shaped track is superposed or not to judge whether the galvanometer is installed horizontally or not.
2. The 3D printing laser galvanometer level detecting method of claim 1, wherein in step S1, the levelness of the printing platform is detected by a level meter.
3. The 3D printing laser galvanometer level detection method according to claim 2, wherein parameters of laser power, laser Mark speed, laser on-delay and laser off-delay are preset before step S2.
4. The 3D printing laser galvanometer level detection method of claim 2, wherein a sample plate is placed on the printing platform, and the laser prints a first cross-shaped track and a second cross-shaped track on the sample plate.
5. The 3D printing laser galvanometer level detection method according to any one of claims 1 to 4, characterized in that in step S3, specifically controlling the cross coordinate to rotate 45 degrees, controlling the laser to continuously print a second icosahedral track on the printing platform.
6. The 3D printing laser galvanometer level detection method according to any one of claims 1 to 4, characterized in that in step S3, specifically controlling the cross coordinate to rotate by 30 degrees, controlling the laser to continuously print a second icosahedral track on the printing platform.
7. The 3D printing laser galvanometer level detection method according to any one of claims 1 to 4, characterized in that in step S3, specifically controlling the cross coordinate to rotate by 60 degrees, controlling the laser to continue printing the second cross-shaped track on the printing platform.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810214840.6A CN108871269B (en) | 2018-03-15 | 2018-03-15 | 3D printing laser galvanometer horizontal detection method |
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| CN201810214840.6A CN108871269B (en) | 2018-03-15 | 2018-03-15 | 3D printing laser galvanometer horizontal detection method |
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| CN108871269A CN108871269A (en) | 2018-11-23 |
| CN108871269B true CN108871269B (en) | 2021-04-06 |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011133346A (en) * | 2009-12-24 | 2011-07-07 | Disco Abrasive Syst Ltd | Level |
| CN205219744U (en) * | 2015-09-18 | 2016-05-11 | 广东汉邦激光科技有限公司 | Laser 3D printer and galvanometer scanning calbiration system thereof |
| CN106182779A (en) * | 2016-08-25 | 2016-12-07 | 佛山市南海中南机械有限公司 | The focal plane correcting unit of a kind of 3D printer and bearing calibration thereof |
| CN106945266A (en) * | 2017-05-09 | 2017-07-14 | 胡达广 | The self-checking system of 3D printer |
| CN106956430A (en) * | 2017-03-29 | 2017-07-18 | 深圳市大业激光成型技术有限公司 | The calibrating installation of galvanometer scanning system a kind of and apply its 3D printer system |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6780368B2 (en) * | 2001-04-10 | 2004-08-24 | Nanotek Instruments, Inc. | Layer manufacturing of a multi-material or multi-color 3-D object using electrostatic imaging and lamination |
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2018
- 2018-03-15 CN CN201810214840.6A patent/CN108871269B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011133346A (en) * | 2009-12-24 | 2011-07-07 | Disco Abrasive Syst Ltd | Level |
| CN205219744U (en) * | 2015-09-18 | 2016-05-11 | 广东汉邦激光科技有限公司 | Laser 3D printer and galvanometer scanning calbiration system thereof |
| CN106182779A (en) * | 2016-08-25 | 2016-12-07 | 佛山市南海中南机械有限公司 | The focal plane correcting unit of a kind of 3D printer and bearing calibration thereof |
| CN106956430A (en) * | 2017-03-29 | 2017-07-18 | 深圳市大业激光成型技术有限公司 | The calibrating installation of galvanometer scanning system a kind of and apply its 3D printer system |
| CN106945266A (en) * | 2017-05-09 | 2017-07-14 | 胡达广 | The self-checking system of 3D printer |
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| CN108871269A (en) | 2018-11-23 |
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Address after: 518000 No. 9988 Shennan Road, Nanshan District, Shenzhen, Guangdong Patentee after: HAN'S LASER TECHNOLOGY INDUSTRY GROUP Co.,Ltd. Patentee after: HAN'S LASER SMART EQUIPMENT GROUP Co.,Ltd. Address before: 518000 No. 9988 Shennan Road, Nanshan District, Shenzhen, Guangdong Patentee before: HAN'S LASER TECHNOLOGY INDUSTRY GROUP Co.,Ltd. Patentee before: SHENZHEN DAZU INTELLIGENT EQUIPMENT TECHNOLOGY Co.,Ltd. |
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Effective date of registration: 20210915 Address after: 518000 No. 9988 Shennan Road, Nanshan District, Shenzhen, Guangdong Patentee after: HAN'S LASER TECHNOLOGY INDUSTRY GROUP Co.,Ltd. Patentee after: Tianjin Han's Intelligent Equipment Co.,Ltd. Address before: 518000 No. 9988 Shennan Road, Nanshan District, Shenzhen, Guangdong Patentee before: HAN'S LASER TECHNOLOGY INDUSTRY GROUP Co.,Ltd. Patentee before: HAN'S LASER SMART EQUIPMENT GROUP Co.,Ltd. |
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