CN103240882B - A kind of 3D printer based on earth induction - Google Patents
A kind of 3D printer based on earth induction Download PDFInfo
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- CN103240882B CN103240882B CN201310104888.9A CN201310104888A CN103240882B CN 103240882 B CN103240882 B CN 103240882B CN 201310104888 A CN201310104888 A CN 201310104888A CN 103240882 B CN103240882 B CN 103240882B
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Abstract
The invention discloses a kind of 3D printer based on earth induction, comprise printer main body, described printer main body comprises the drive motors that control system, moulder's station and the horizontal X-direction of Controlling model workbench, Y-direction and Z-direction are moved, described moulder's station is provided with magnetic direction detecting unit, described magnetic direction detecting unit is consistent with simulation workbench orientation, described control system is connected with magnetic direction detecting unit, the magnetic azimuth of testing platform.The present invention adopts magnetic direction detecting unit to detect X-direction, Y-direction and Z-direction three road position signalling simultaneously, utilize magnetic direction detecting unit not affect by power interruptions, do not need the advantage that again makes zero, printer initial point is determined in realization, the ratio of performance to price of this device is high, and meet the working control requirement of 3D printer, can be conveniently used for replacing the use of absolute encoder as displacement measurement, both interface compatibilities, can be completely alternative.
Description
Technical field
The present invention relates to three-dimensional Rapid Manufacturing Technology field, specifically refer to a kind of 3D printer based on earth induction.
Background technology
3D printer, i.e. a kind of machine of RP technique, it is a kind of based on mathematical model file, uses powdery metal or plastics etc. can jointing material, is carried out the technology of constructed object by the mode successively printed.Past, its field such as Making mold, industrial design of being everlasting was used to modeling, existing just gradually for the direct manufacture of some products.Particularly some high value applications (such as hip joint or tooth, or some airplane components) have had the parts using this technology to print." 3 D-printing " means the universal of this technology.
The operation principle of 3D printer is substantially the same with conventional printer, is all made up of frameworks such as Control Component, mechanical component, printhead, consumptive material and media.3D printer mainly devises a complete three-dimensional stereo model before printing on computers, and then prints out.Which employs layering processing, superpose shaping come 3D physical print.The print procedure of every one deck is divided into two steps: first spray the special glue of one deck in the region that needs are shaping, glue droplet itself is very little, and not easily spreads; Then be spray the uniform powder of one deck, powder runs into glue and can cohere by rapid solidification, and does not have the region of glue still to keep loose condition (of surface).Like this one deck glue one deck powder alternately under, physical model will be shaping by " printing ", as long as clear away loose powder " plane " after printing to go out model, and residual powder also reusable edible.
During the start of 3D printer, must first determining printer initial point, and determine that the motion of printer initial point is exactly the operation of printhead referring back to point, like this by confirming reference point, just determining printer initial point.After only having printer reference point to be identified, printhead moves just has benchmark.The relative position of printer reference point and printer initial point is fixing, is determined, and arranged by printer parameter before printer dispatches from the factory by printer manufacturing firm through accurate measurement.The motion that printer performs referring back to point is the method setting up coordinate system, namely under any circumstance, by carrying out referring back to a motion, printer reference axis can be made to move to reference point and locate, and system is that benchmark sets up printer coordinate system automatically with reference point.Printer coordinate system is once set up, and under printer not power-off, not anxious prerequisite of stopping, printer coordinate just remains unchanged.Because reference point, printer origin position are all changeless, the functions such as the processing of printer is spacing, compensation, machining area restriction all be just achieved for benchmark.In prior art, above-mentioned reference point and printer origin position all detect machine tool position by absolute encoder and realize.
At present in displacement measurement, absolute encoder account for very large a part of market, but absolute encoder is on the high side, easily damage, service life is short, especially unfortunately, absolute encoder affects greatly by power interruptions, if lost because certain cause specific makes dead battery or system interference cause absolute encoder to remember, printer cannot carry out the operation referring back to point, namely cannot set up printer coordinate system, printer can not normally run.
Summary of the invention
The object of the invention is to overcome deficiency of the prior art, a kind of 3D printer based on earth induction is provided, the device overcoming the detection machine tool position in existing 3D printer is expensive and easily damage, shortcoming that service life is short, improve the ratio of performance to price of this device, the device making 3D printer detect machine tool position does not affect by power interruptions, does not need again to make zero.
The object of the invention is to be achieved through the following technical solutions:
A kind of 3D printer based on earth induction, comprise printer main body, described printer main body comprises the drive motors that control system, moulder's station and the horizontal X-direction of Controlling model workbench, Y-direction and Z-direction are moved, it is characterized in that: described moulder's station is provided with magnetic direction detecting unit, described magnetic direction detecting unit is consistent with simulation workbench orientation, described control system is connected with magnetic direction detecting unit, the magnetic azimuth of testing platform.
Concrete, described control system connects the drive circuit of the drive motors of X-direction, Y-direction and Z-direction motion, and the horizontal X-direction of Controlling model workbench, Y-direction and Z-direction are moved, the magnetic azimuth of adjustment model workbench.
Preferably, magnetic direction detecting unit can comprise the geomagnetic sensor be connected with control system, also can comprise the Gravity accelerometer be connected with control system.
Preferably, described geomagnetic sensor is three axle geomagnetic sensors.
The present invention has the following advantages and beneficial effect compared to existing technology:
1, the present invention adopts magnetic direction detecting unit to detect X-direction, Y-direction and Z-direction three road position signalling simultaneously, utilize magnetic direction detecting unit not affect by power interruptions, do not need the advantage that again makes zero, printer initial point is determined in realization, the ratio of performance to price of this device is high, and meet the working control requirement of 3D printer, can be conveniently used for replacing the use of absolute encoder as displacement measurement, both interface compatibilities, can be completely alternative.
2, good reliability, the SSI synchronization serial output mode of geomagnetic sensor work, data format is identical with absolute encoder, and export Gray code or binary code, signal has very high anti-interference, and precision is higher.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Detailed description of the invention
Below in conjunction with embodiment and accompanying drawing, the present invention is described in further detail, but embodiments of the present invention are not limited thereto.
Embodiment
As shown in Figure 1, the present embodiment provides a kind of 3D printer based on earth induction, comprise printer main body, described printer main body comprises the drive motors that control system, moulder's station and the horizontal X-direction of Controlling model workbench, Y-direction and Z-direction are moved, it is characterized in that: described moulder's station is provided with magnetic direction detecting unit, described magnetic direction detecting unit is consistent with simulation workbench orientation, described control system is connected with magnetic direction detecting unit, the magnetic azimuth of testing platform.The control system printing owner's body in the present invention connects magnetic direction detecting unit, the dimensionally magnetic azimuth of real-time detection model workbench.Magnetic direction detecting unit does not affect by power interruptions, do not need the advantage that again makes zero, and realize determining printer initial point, the ratio of performance to price of this device is high; And meet the working control requirement of 3D printer, can be conveniently used for replacing the use of absolute encoder as displacement measurement, both interface compatibilities, can be completely alternative.
Magnetic direction detecting unit can comprise the geomagnetic sensor be connected with control system.Geomagnetic sensor can detect the distributed in three dimensions in magnetic field of the earth delicately, calculate the magnetic azimuth of geomagnetic sensor self, the present invention is pointed to by the printhead of magnetic direction detecting unit adjustment 3D printer and realizes quick position, effectively meets the working control requirement of 3D printer.In addition, because the relative direction in earth's magnetic field is corresponding to the change of 3D printer installation direction, orienting device may have different positions or direction, and such as, when installing pitching change, magnetic direction data also can change.In order to overcome the detection error to 3D printer magnetic direction practically that this such change causes, magnetic direction detecting unit also can comprise Gravity accelerometer to obtain the change of elevation angle, carries out the correction of magnetic direction thus.
Described control system connects the drive circuit of the drive motors of X-direction, Y-direction and Z-direction motion, and the horizontal X-direction of Controlling model workbench, Y-direction and Z-direction are moved, the magnetic azimuth of adjustment model workbench.
Preferably, described geomagnetic sensor is three axle geomagnetic sensors.
The control system of 3D printer main body is entered serial port and is connected geomagnetic sensor, the dimensionally magnetic azimuth data that receiver sends; Control system connects the drive circuit of the drive motors of X-direction, Y-direction and Z-direction motion, and the horizontal X-direction of Controlling model workbench, Y-direction and Z-direction are moved, the magnetic azimuth of adjustment model workbench.
Specific implementation process of the present invention is:
The data of the magnetic direction residing for magnetic direction detecting unit collection model workbench, control system obtains magnetic direction data from geomagnetic sensor, superpose the device inclination data obtained from Gravity accelerometer, thus determine this moulder's station towards positional information, control system is according to above-mentioned data, the drive motors motion of the horizontal X-direction of control system Controlling model workbench, Y-direction and Z-direction, the magnetic azimuth of adjustment model workbench, determines described reference point and printer origin position.
Above-described embodiment is the present invention's preferably embodiment; but embodiments of the present invention are not restricted to the described embodiments; change, the modification done under other any does not deviate from Spirit Essence of the present invention and principle, substitute, combine, simplify; all should be the substitute mode of equivalence, be included within protection scope of the present invention.
Claims (3)
1. the 3D printer based on earth induction, comprise printer main body, described printer main body comprises control system, moulder's station and the horizontal X-direction of Controlling model workbench, the drive motors of Y-direction and Z-direction motion, it is characterized in that: described moulder's station is provided with magnetic direction detecting unit, described magnetic direction detecting unit is consistent with simulation workbench orientation, described control system is connected with magnetic direction detecting unit, the magnetic azimuth of testing platform, described control system connects X-direction, the drive circuit of the drive motors of Y-direction and Z-direction motion, the horizontal X-direction of Controlling model workbench, Y-direction and Z-direction motion, the magnetic azimuth of adjustment model workbench, magnetic direction detecting unit comprises the geomagnetic sensor be connected with control system.
2., according to claim 1 based on the 3D printer of earth induction, it is characterized in that: magnetic direction detecting unit also comprises the Gravity accelerometer be connected with control system.
3. according to claim 2 based on the 3D printer of earth induction, it is characterized in that: described geomagnetic sensor is three axle geomagnetic sensors.
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| CN201310104888.9A CN103240882B (en) | 2013-03-28 | 2013-03-28 | A kind of 3D printer based on earth induction |
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| CN201310104888.9A CN103240882B (en) | 2013-03-28 | 2013-03-28 | A kind of 3D printer based on earth induction |
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| CN103240882B true CN103240882B (en) | 2015-09-09 |
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| CN104015367B (en) * | 2014-06-27 | 2017-03-29 | 漳州市回声电子科技有限公司 | The method that recovery of having no progeny in a kind of 3D printer printing is printed |
| US11383282B2 (en) | 2017-03-23 | 2022-07-12 | Robotic Research Opco, Llc | System and method for enabling fused deposition metal 3D printing |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1325017A (en) * | 2001-03-30 | 2001-12-05 | 清华大学 | Miniature navigation system based on micro electromechanical techn. |
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| JP4009617B2 (en) * | 2004-05-26 | 2007-11-21 | オリンパス株式会社 | Position relation detection apparatus and position relation detection system |
| JP2008207355A (en) * | 2007-02-23 | 2008-09-11 | Seiko I Infotech Inc | Inkjet printer |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1325017A (en) * | 2001-03-30 | 2001-12-05 | 清华大学 | Miniature navigation system based on micro electromechanical techn. |
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