CN105855543A - Plotter type selective laser melting additive manufacturing machine - Google Patents
Plotter type selective laser melting additive manufacturing machine Download PDFInfo
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- CN105855543A CN105855543A CN201510034851.2A CN201510034851A CN105855543A CN 105855543 A CN105855543 A CN 105855543A CN 201510034851 A CN201510034851 A CN 201510034851A CN 105855543 A CN105855543 A CN 105855543A
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- guide rail
- laser
- additive manufacturing
- laser beam
- along
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/25—Process efficiency
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- Laser Beam Processing (AREA)
Abstract
The invention provides novel additive manufacturing equipment, namely a plotter type selective laser melting additive manufacturing machine. A plotter type scanning method is adopted, i.e., a laser working head does linear motion along an x-axis guide rail and a y-axis guide rail correspondingly so as to achieve scanning of a laser beam in an x-y working plane, powder materials are selectively irradiated and melted, and parts are formed layer by layer. After the plotter type selective laser melting additive manufacturing machine is applied, switching between the angular speed and the linear speed is not needed for a control system of the additive manufacturing machine, speed errors can be reduced, and part precision is improved; it can be guaranteed that the light spot size of the laser beam on the working plane is stable without dynamic focusing of a laser path, size errors and the surface roughness of the parts can be reduced conveniently, stable part quality is ensured, and the additive manufacturing machine can be used for manufacturing large-size parts.
Description
Technical field
The present invention relates to a kind of figuration manufacture equipment, specifically, relate to a kind of new increasing material manufacture equipment.
Background technology
At present, increasing material manufacture (i.e. 3D printing) technique is just by fervent concern both domestic and external, and the increasing manufacture process that increases is developed with equipment.The Forming Theory of various manufacturing process is different, and work head used is the most varied.The scan mode of work head mainly has two kinds, and a kind of is drawing ceremony, and another is mirror-vibrating.For paving powder formula laser gain material manufacturing process, such as selective laser sintering and selective laser melting, owing to requiring higher scanning speed, current laser beam all uses galvanometric scanning.
But, laser beam galvanometric scanning there are disadvantages that.In galvanometric scanning equipment, when galvanometer rotates, laser beam scans at a sector region, when galvanometer rotates with a fixed angular speed, the laser beam linear velocity when work top difference scans is change, and along with the distance between work top and galvanometer increases, the linear velocity when work top scans increases, and the change of line speed when difference scans also increases.It addition, work top difference is different to the distance of laser beam focus mirror, laser beam is the most different at the spot size of this point, and laser power density is different, and the effect to moulding material is the most different.So, for the increasing manufacture process of bigger work top, laser beam uses galvanometric scanning can cause bigger error, reduces parts quality.
Summary of the invention
In order to solve the problems referred to above, this patent proposes laser beam and uses drawing ceremony scan method, has invented drawing ceremony selective laser melting and has increased material manufacture equipment.
The increasing material of invention manufactures machine and uses drawing ceremony scan method, i.e. laser work head does, along x-axis guide rail and y-axis guide rail, the mode moved along a straight line respectively, realize laser beam scanning in x-y working face, optionally irradiate and melt dusty material, successively formation of parts.Laser work head is suspended in the top of working cylinder and power spreading device, single shaft linear motion is done along a guide rail under motor drives, this guide rail can do the linear motion of another one axle under motor drives with first of laser work along guide rail being fixed in frame, thus realizes the x-y plane scanning motion in work top of the laser work head；After the reflecting mirror reflection that the laser beam entered outside work box is fixed on frame, the reflecting mirror being arranged on motion guide rail is arrived along the direction with the guide rail parallel being fixed in frame, the reflecting mirror of laser work head is arrived by the direction that reflection tailing edge is parallel with motion guide rail, this reflecting mirror reflexes to laser beam on focus lamp along Z-direction, irradiates and melt the dusty material on working face after focusing.
After this patent is implemented, increase material and manufacture the control system of machine without carrying out the conversion between angular velocity and linear velocity, it is possible to reduce velocity error, improve part accuracy；Laser optical path is without carrying out dynamic focusing, ensure that laser beam spot size on working face is stable, advantageously reduce product scale error and surface roughness, it is ensured that parts quality is stable, it is possible to make increasing material manufacture machine for manufacturing larger-size part.
Implement this patent, first, design and produce drawing ceremony motion, it is ensured that the plane of movement of laser work head is parallel with working face, laser work head stable movement is accurate；Then, designing laser optical path, correcting optical element, it is ensured that when laser work head scans in the range of whole work top, laser beam can be all the time with the hot spot vertical irradiation dusty material of certain size.
Claims (3)
1. a new increasing material manufacture equipment, it is characterized in that: use drawing ceremony scan method, i.e. laser work head to do, along x-axis guide rail and y-axis guide rail, the mode moved along a straight line respectively, it is achieved laser beam scanning in x-y working face, optionally irradiate and melt dusty material, successively formation of parts.
Increasing material manufacture the most according to claim 1 is equipped, its feature also has: laser work head is suspended in the top of working cylinder and power spreading device, single shaft linear motion is done along a guide rail under motor drives, this guide rail can do the linear motion of another one axle under motor drives with first of laser work along guide rail being fixed in frame, thus realizes the x-y plane scanning motion in work top of the laser work head.
Increasing material manufacture the most according to claim 1 is equipped, its feature also has: after the reflecting mirror reflection that the laser beam entered outside work box is fixed on frame, the reflecting mirror being arranged on motion guide rail is arrived along the direction with the guide rail parallel being fixed in frame, the reflecting mirror of laser work head is arrived by the direction that reflection tailing edge is parallel with motion guide rail, this reflecting mirror reflexes to laser beam on focus lamp along Z-direction, irradiates and melt the dusty material on working face after focusing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510034851.2A CN105855543A (en) | 2015-01-24 | 2015-01-24 | Plotter type selective laser melting additive manufacturing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510034851.2A CN105855543A (en) | 2015-01-24 | 2015-01-24 | Plotter type selective laser melting additive manufacturing machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105855543A true CN105855543A (en) | 2016-08-17 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510034851.2A Pending CN105855543A (en) | 2015-01-24 | 2015-01-24 | Plotter type selective laser melting additive manufacturing machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105855543A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2323962Y (en) * | 1998-05-20 | 1999-06-16 | 清华大学 | Hot-pressing-scanning integral apparatus for lamination solid production |
| US20060022379A1 (en) * | 2004-07-30 | 2006-02-02 | Board Of Regents, The University Of Texas System | Multi-material stereolithography |
| CN2936746Y (en) * | 2006-07-04 | 2007-08-22 | 上海富奇凡机电科技有限公司 | Stereo printing type quickly forming mahcine |
| CN202291409U (en) * | 2011-07-15 | 2012-07-04 | 华中科技大学 | Selective laser melting rapid molding equipment for directly fabricating large-sized parts |
| CN103071798A (en) * | 2013-01-23 | 2013-05-01 | 西安铂力特激光成形技术有限公司 | Linear guide rail type SLM (Selective Laser Melting) molding equipment |
| CN103394693A (en) * | 2013-08-15 | 2013-11-20 | 石家庄铁道大学 | Multidimensional laser printing device and method capable of manufacturing large-angle cantilever structure workpiece |
-
2015
- 2015-01-24 CN CN201510034851.2A patent/CN105855543A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2323962Y (en) * | 1998-05-20 | 1999-06-16 | 清华大学 | Hot-pressing-scanning integral apparatus for lamination solid production |
| US20060022379A1 (en) * | 2004-07-30 | 2006-02-02 | Board Of Regents, The University Of Texas System | Multi-material stereolithography |
| CN2936746Y (en) * | 2006-07-04 | 2007-08-22 | 上海富奇凡机电科技有限公司 | Stereo printing type quickly forming mahcine |
| CN202291409U (en) * | 2011-07-15 | 2012-07-04 | 华中科技大学 | Selective laser melting rapid molding equipment for directly fabricating large-sized parts |
| CN103071798A (en) * | 2013-01-23 | 2013-05-01 | 西安铂力特激光成形技术有限公司 | Linear guide rail type SLM (Selective Laser Melting) molding equipment |
| CN103394693A (en) * | 2013-08-15 | 2013-11-20 | 石家庄铁道大学 | Multidimensional laser printing device and method capable of manufacturing large-angle cantilever structure workpiece |
Non-Patent Citations (1)
| Title |
|---|
| 宾鸿赞: "《分形扫描路径的规划、控制、应用》", 31 August 2006 * |
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Application publication date: 20160817 |
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| RJ01 | Rejection of invention patent application after publication |