CN103465473A - Ball screw type serial structure rapid molding structure for 3D printer - Google Patents
Ball screw type serial structure rapid molding structure for 3D printer Download PDFInfo
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- CN103465473A CN103465473A CN2013103525609A CN201310352560A CN103465473A CN 103465473 A CN103465473 A CN 103465473A CN 2013103525609 A CN2013103525609 A CN 2013103525609A CN 201310352560 A CN201310352560 A CN 201310352560A CN 103465473 A CN103465473 A CN 103465473A
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- erecting bed
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Abstract
The invention discloses a ball screw type serial structure rapid molding structure for a 3D printer. In the 3D printer, a Z-shaft screw adopts a ball screw. The ball screw type serial structure rapid molding structure provided in the invention can reduce the error of a printing head during micro-stepping, eliminate hysterisis error as far as possible, and simultaneously increases the stability of the whole structure.
Description
Technical field
The present invention relates to 3D printer port of printer drive mechanism field, be specially ball wire rod-type serial structure rapid shaping structure for a kind of 3D printer.
Background technology
The 3D printer is that a kind of novel rapidform machine is had it long ago but just progressively enters recently consumer level market.The part that people design on computers can be cast without die sinking, and without milling machine cutting, just " manufacture " out rapidly.
Consumer level 3D printer is limited to cost consideration, has done very large compromise on printing precision and print speed.
Printing precision is mainly by two aspects decisions, and printhead positioning precision (stepping) precision and printhead are extruded precision.
The printhead stepping accuracy is because be the removable frame for movement of a set of three axle, larger than the shared weight of printing head.
Each object has length and width high (XYZ), so printhead will move and just can print object on the XYZ axle.The 3D printer is successively printed in operation, and in printhead precision (thickness of the every printing one deck of bed thickness 3D printer), under definite prerequisite, it is most important that the stepping accuracy of Z axis just seems.
In fact, printhead moves step by step on each axle, is called stepping, by stepper motor, by transmission system, is sent.In consumer level 3D printer, transmission system is generally selected conveyer belt, chain, and better scheme is used screw mandrel.
And the position error major part goes out on this transmission system.When printhead is started mobilely by starting point, when micro-, while advancing (stepper motor single step stepping), due to the elasticity of belt or the moment of torsion of screw mandrel, can produce error.In moving process, these errors can accumulate gradually.And, when shelves printhead moving direction changes, have again hysterisis error and produce.The object of printing is larger, is also that stroke is larger, and loss of significance is larger.
In order to reduce error, common 3D printer can use screw mandrel to add form that slide bar adds the return difference nut that disappears again to reduce micro-error of advancing.And can be aided with limit switch and do calibration.The return difference that disappears nut can be eliminated hysterisis error to a certain extent.Yet increase the damping inevitably increased after the return difference nut that disappears, spring assembly is contained in the return difference that disappears nut inside simultaneously, before use, need to adjust, after long-time the use, also to adjust.Larger damping meeting makes at micro-creeping phenomenon (a similar people pushes away a very heavy chest, when the chest setting in motion can one one, movement that then just can be comparatively smooth) that occurs while advancing.The return difference that disappears nut is also a kind of ancillary method, can not fundamentally solve the precision problem of common screw mandrel.
Consumer level 3D printer generally uses plank and PVC board material splice to make at present, is limited to material cost and fixed form.Make on overall physical arrangement firm not.And in print procedure, the moving around of printhead, the radiator fan of printhead, the running of feeder, all brought vibrations.Firm not structure can affect printing precision on degree of integration.
Summary of the invention
The purpose of this invention is to provide ball wire rod-type serial structure rapid shaping structure for a kind of 3D printer, the problem existed to solve prior art.
In order to achieve the above object, the technical solution adopted in the present invention is:
Ball wire rod-type serial structure rapid shaping structure for the 3D printer, it is characterized in that: in the 3D printer, the Z axis leading screw adopts ball screw.
Ball wire rod-type serial structure rapid shaping structure for described a kind of 3D printer, it is characterized in that: include the X-axis erecting bed, the Y-axis erecting bed, the Z axis erecting bed, be provided with the X-axis polished rod on the X-axis erecting bed, the X-axis stepper motor, be slidably fitted with the 3D printhead on the X-axis polished rod, and the X-axis stepper motor drives the 3D printhead to slide on the X-axis polished rod, be provided with the Y-axis polished rod on the Y-axis erecting bed, y-axis stepper motor, the X-axis erecting bed is slidably mounted on the Y-axis polished rod, and y-axis stepper motor drives the X-axis erecting bed to slide on the Y-axis polished rod, be provided with the Z axis polished rod on the Z axis erecting bed, the Z axis ball screw, the Z axis stepper motor, the Y-axis erecting bed is slidably mounted on the Z axis polished rod, on the Z axis ball screw and with Z axis ball screw threaded engagement, the Z axis stepper motor is connected with the Z axis ball leading screw driving.
The present invention can reduce printhead in micro-error while advancing, and eliminates as much as possible hysterisis error, has increased integrally-built steadiness simultaneously.
The accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
The specific embodiment
As shown in Figure 1.Ball wire rod-type serial structure rapid shaping structure for the 3D printer, in the 3D printer, the Z axis leading screw adopts ball screw.Include the X-axis erecting bed, the Y-axis erecting bed, the Z axis erecting bed, be provided with X-axis polished rod 1 on the X-axis erecting bed, X-axis stepper motor 2, be slidably fitted with 3D printhead 3 on X-axis polished rod 1, and X-axis stepper motor 2 drives 3D printhead 3 to slide on X-axis polished rod 1, be provided with Y-axis polished rod 4 on the Y-axis erecting bed, y-axis stepper motor 5, the X-axis erecting bed is slidably mounted on Y-axis polished rod 4, and y-axis stepper motor 5 drives the X-axis erecting bed to slide on Y-axis polished rod 4, be provided with Z axis polished rod 6 on the Z axis erecting bed, Z axis ball screw 7, Z axis stepper motor 8, the Y-axis erecting bed is slidably mounted on Z axis polished rod 6, on Z axis ball screw 7 and with Z axis ball screw 7 threaded engagement, Z axis stepper motor 8 is in transmission connection with Z axis ball screw 7.
The present invention has used advanced ball screw in transfer system.Ball screw is not a kind of brand-new technology, and ball screw is the technical grade part.Compared to common sliding screw, ball screw has added a lot of balls between lead screw shaft and feed screw nut, and these balls roll between screw axis and nut.So have great advantage on transmission efficiency.In other words staring torque is minimum, only has 1/3rd of common screw mandrel.When that stepper motor is micro-is more smooth while advancing.Be also the high-speed motion that in thinking, this reason can realize printhead, improve print speed simultaneously.
Select ball screw to also have a benefit, increase whole steadiness.Because the operation principle of ball screw, the production specification of ball screw is very high, connects to have guaranteed its quality.The repulsion of ball can make the rigidity reinforced of screw mandrel again.Just, because having benefited from this, be aided with the PVC material of higher-strength, can increase tight lock intensity when assembling, thereby promote overall mechanical strength (steadiness), finally be reflected on printing precision.
In use, the stepper motor on software control three axles, location, implementation space.Control again printhead and extrude the quantitative materials such as resin, can complete the printing of least unit.
Then numerous least unit is spliced into a plane layer, and after completing one deck, system transfers to print lower one deck.So object of just having produced a solid of successively being superimposed together.In our type, each printable layer is arranged according to Z axis.In print procedure, when printhead changes layer, the levels of precision that Z axis moves has determined the fine degree of printing objects to a great extent.And Z axis is selected high standard, the ball screw of technical grade can effectively reduce error.
No matter be that printhead moves in the XY plane, or be to move on Z axis.Because the reason of power and reaction force, inevasiblely vibrations have been brought.Now select high-intensity ball screw, itself can be used as structural member and use.If frame structure, can produce deformation when fixed lock, cavity structure also easily produces resonance, affects precision.And the ball screw of high rigidity can be used as skeleton, just as skeleton.Assist with super thick PVC shell, finally be combined into the structure of a high mechanical properties, can effectively reduce the error that vibrations bring.
Simultaneously also because the transmission efficiency of ball screw is three times of common screw mandrel, close to the efficiency of conveyer belt 90%.Under the stepper motor of equal torsion drives, translational speed can be higher, therefore brought high speed characteristics.
Claims (2)
1.3D ball wire rod-type serial structure rapid shaping structure for printer, it is characterized in that: in the 3D printer, the Z axis screw mandrel adopts ball screw.
2. ball wire rod-type serial structure rapid shaping structure for a kind of 3D printer according to claim 1, it is characterized in that: include the X-axis erecting bed, the Y-axis erecting bed, the Z axis erecting bed, be provided with the X-axis polished rod on the X-axis erecting bed, the X-axis stepper motor, be slidably fitted with the 3D printhead on the X-axis polished rod, and the X-axis stepper motor drives the 3D printhead to slide on the X-axis polished rod, be provided with the Y-axis polished rod on the Y-axis erecting bed, y-axis stepper motor, the X-axis erecting bed is slidably mounted on the Y-axis polished rod, and y-axis stepper motor drives the X-axis erecting bed to slide on the Y-axis polished rod, be provided with the Z axis polished rod on the Z axis erecting bed, the Z axis ball screw, the Z axis stepper motor, the Y-axis erecting bed is slidably mounted on the Z axis polished rod, on the Z axis ball screw and with Z axis ball screw threaded engagement, the Z axis stepper motor is connected with the Z axis ball leading screw driving.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310352560.9A CN103465473B (en) | 2013-08-14 | 2013-08-14 | 3D printer Ball screw type serial structure rapid shaping structure |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310352560.9A CN103465473B (en) | 2013-08-14 | 2013-08-14 | 3D printer Ball screw type serial structure rapid shaping structure |
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| CN103465473A true CN103465473A (en) | 2013-12-25 |
| CN103465473B CN103465473B (en) | 2016-01-13 |
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| CN201310352560.9A Expired - Fee Related CN103465473B (en) | 2013-08-14 | 2013-08-14 | 3D printer Ball screw type serial structure rapid shaping structure |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103921333A (en) * | 2014-04-21 | 2014-07-16 | 苏州美迈快速制造技术有限公司 | Three-dimensional ink-jet printer for sand molds |
| CN103963304A (en) * | 2014-05-27 | 2014-08-06 | 青岛金石塞岛投资咨询服务有限公司 | 3D (three-dimensional) printer |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040195211A1 (en) * | 2002-08-12 | 2004-10-07 | Yung-Tsai Chuo | Double-axis double-speed linear motor mechanism |
| CN2704471Y (en) * | 2004-04-05 | 2005-06-15 | 李淮 | Smelting stacking rapid forming apparatus by extending arm connected moulding bit |
| CN101693407A (en) * | 2009-10-29 | 2010-04-14 | 凌聿辉 | Numerically-controlled plastic thin-layer sediment moulding machine |
| CN103182781A (en) * | 2011-12-29 | 2013-07-03 | 上海富奇凡机电科技有限公司 | Single-nozzle melt-extrusion-type three-dimensional printer |
-
2013
- 2013-08-14 CN CN201310352560.9A patent/CN103465473B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040195211A1 (en) * | 2002-08-12 | 2004-10-07 | Yung-Tsai Chuo | Double-axis double-speed linear motor mechanism |
| CN2704471Y (en) * | 2004-04-05 | 2005-06-15 | 李淮 | Smelting stacking rapid forming apparatus by extending arm connected moulding bit |
| CN101693407A (en) * | 2009-10-29 | 2010-04-14 | 凌聿辉 | Numerically-controlled plastic thin-layer sediment moulding machine |
| CN103182781A (en) * | 2011-12-29 | 2013-07-03 | 上海富奇凡机电科技有限公司 | Single-nozzle melt-extrusion-type three-dimensional printer |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103921333A (en) * | 2014-04-21 | 2014-07-16 | 苏州美迈快速制造技术有限公司 | Three-dimensional ink-jet printer for sand molds |
| CN103963304A (en) * | 2014-05-27 | 2014-08-06 | 青岛金石塞岛投资咨询服务有限公司 | 3D (three-dimensional) printer |
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| CN103465473B (en) | 2016-01-13 |
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Owner name: MA'ANSHAN ZHUANGYUANLANG ELECTRONICS TECHNOLOGY CO Free format text: FORMER OWNER: ANHUI ZHUANGYUANLANG ELECTRONIC TECHNOLOGY CO., LTD. Effective date: 20140320 |
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Inventor after: Chen Xing Inventor after: Dong Zixia Inventor after: Li Pu Inventor after: Wang Qianru Inventor before: Zhou Jianhua Inventor before: Ji Jianhua Inventor before: Dong Zixia Inventor before: Li Pu Inventor before: Wang Qianru |
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