CN104385601B - Automatically the device and method of curved surface initial position is identified suitable in 3D printer - Google Patents
Automatically the device and method of curved surface initial position is identified suitable in 3D printer Download PDFInfo
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- CN104385601B CN104385601B CN201410680302.8A CN201410680302A CN104385601B CN 104385601 B CN104385601 B CN 104385601B CN 201410680302 A CN201410680302 A CN 201410680302A CN 104385601 B CN104385601 B CN 104385601B
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- 230000006698 induction Effects 0.000 claims description 20
- 238000009434 installation Methods 0.000 claims description 15
- 230000007423 decrease Effects 0.000 claims description 14
- 238000010438 heat treatment Methods 0.000 claims description 11
- 238000005070 sampling Methods 0.000 claims description 11
- 230000009471 action Effects 0.000 claims description 8
- 238000001514 detection method Methods 0.000 claims description 4
- 239000004642 Polyimide Substances 0.000 claims description 3
- 238000004364 calculation method Methods 0.000 claims description 3
- 239000013013 elastic material Substances 0.000 claims description 3
- 239000011159 matrix material Substances 0.000 claims description 3
- 229920001721 polyimide Polymers 0.000 claims description 3
- 230000007704 transition Effects 0.000 claims description 3
- 238000005507 spraying Methods 0.000 abstract description 3
- 230000008859 change Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 238000005457 optimization Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000003854 Surface Print Methods 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 230000008447 perception Effects 0.000 description 2
- 230000008602 contraction Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000013178 mathematical model Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
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Abstract
The present invention relates to 3D printer field, be specifically related to be applicable to 3D printer and automatically identify the device and method of curved surface initial position.The above-mentioned technical purpose of the present invention has the technical scheme that the device automatically identifying curved surface initial position suitable in 3D printer, including for putting the workbench of printer model and spraying material on described workbench and form the shower nozzle of model, also comprise and be positioned at the X-axis that X-axis support parallel with described workbench above described workbench is connected with described shower nozzle and move device and connect described X-axis support and the Z axis that described X-axis support slides in vertical direction can be made to move device.It is an object of the invention to provide the device and method automatically identifying curved surface initial position suitable in 3D printer, by printing head subregion multiple spot and work platforms touching, obtain initial Z0 position, not only remove the inconvenience of manual adjustment from, raising efficiency, can realize printing on curved surface simultaneously.
Description
Technical field
The present invention relates to 3D printer field, be specifically related to be applicable to 3D printer and automatically identify the device and method of curved surface initial position.
Background technology
3D printer is based on mathematical model file printout going out three-dimensional real object rapidly, and observation is directly perceived, easy to use, becomes worldwide fast-developing and wide variety of technical equipment in recent years.The operation principle of 3D printer is to adopt the mode successively printed, printing head moves in X-axis and Y-axis, material silk is sprayed on work platforms, printing head is moved on Z axis by lowering or hoisting gear afterwards, repeat previous step and print the model layer of this Z axis height, thus obtaining three-dimensional real object model.Needing the accurately smooth of work platforms in this process, the Z axis coordinate that otherwise the control system of 3D printer is computed offsets with actual generation, and gently then impact prints accuracy, and heavy then whole stereomodel, owing to shifting the support force deficiency caused, avalanche occurs.
In prior art, below work platforms, four corner locations are provided with spring, and user makes work platforms maintenance level by regulating spring, but such adjustment poor accuracy and dependence are artificial, and efficiency is low.Also published just like the patent document that application notification number the is CN103591934A 3D real-time level detection system of printer workbench, including multiple double-shaft tilt angle sensor modules with the display lamp being attached thereto and buzzer, when by double-shaft tilt angle sensor, system detects that work platforms is not at level, display lamp is bright, buzzer rings, and carrys out, by such mode, the accuracy that winding level adjusts.
But such adjustment mode does not still change to be needed to manually adjust spring and carrys out the present situation of leveling work platforms, if the change of temperature environment can cause the change of platform material, spring is chronically at contraction state simultaneously, and coefficient of elasticity also can change, and did not have one end time to be required for again adjusting；On the other hand, if platform itself exists the error of flatness, no matter which kind of regulates all without solving the Printing Problem that platform out-of-flatness brings；Last along with the progress of technology, user needs model bottom to be curved sometimes, and the working face of level obviously cannot realize.
Summary of the invention
It is an object of the invention to provide the device and method automatically identifying curved surface initial position suitable in 3D printer, by printing head subregion multiple spot and work platforms touching, obtain initial Z0 position, not only remove the inconvenience of manual adjustment from, raising efficiency, can realize printing on curved surface simultaneously.
The above-mentioned technical purpose of the present invention has the technical scheme that the device automatically identifying curved surface initial position suitable in 3D printer, including for putting the workbench of printer model and spraying the shower nozzle of material formation model on described workbench, suitable in 3D printer, this kind automatically identifies that the device of curved surface initial position comprises and is positioned at X-axis support parallel with described workbench above described workbench, it is connected with described shower nozzle, the X-axis that described shower nozzle can slide along X-axis on described X-axis support is made to move device and connect described X-axis support and the Z axis that described X-axis support slides in vertical direction can be made to move device；Described X-axis support 2 is included in extension that X-direction extends and one end is connected with described extension, and the other end is to the connecting portion of close described workbench direction extension；Described Z axis moves device and comprises the supporting plate being connected through the screw mandrel of described connecting portion and fixing with described screw mandrel and conflicting with the end of described connecting portion；Described Z axis moves device and is provided with the induction installation that can sense that described supporting plate departs from described connecting portion.
User regulates Y-axis and moves device, regulate described X-axis and move device, described shower nozzle is navigated to the sampling optimization vertical direction of described workbench, it can be the slide bar and belt that are connected with described workbench in prior art that Y-axis regulates device, described workbench is driven to move in horizontal plane Y direction, regulate described workbench and the relative position of described shower nozzle, described X-axis moves device can adopt the slide rail being embedded in described extension bottom surface, described shower nozzle is connected on the described slide block that can slide on described slide rail, thus realizing described shower nozzle can move to any point on described workbench；When described shower nozzle moves to the surface of sampling point position, operate described Z axis and move device lifting, described screw mandrel declines, described supporting plate is driven to decline, the lower surface of the upper surface of described supporting plate and described connecting portion is conflicted, described X-axis support and the shower nozzle being connected on described X-axis support is driven to decline, when described shower nozzle drops to certain altitude, conflict with described workbench, cannot continue to decline, and described screw mandrel continues to decline, described supporting plate departs from described connecting portion, this disengaging action is captured by described induction installation, so that it is determined that Z axis coordinate now is the Z axis initial coordinate of this sampled point, it is Z0 coordinate；Described induction installation can be infrared induction device, it is possible to for sense of touch induction installation, can capture this separating action；User repeats above-mentioned action by the multiple sampled points on described workbench and carries out the Z0 data sampling of multiple sampled point, the Z0 coordinate of all positions on described workbench is recorded according to linear equation, if described bed dimension is big, then increase the quantity of sampled point, if described workbench is in order to coordinate model ground shape curved surface degree strong, then increase the distribution density of sampled point, thus realizing the Z0 data corresponding to described shower nozzle each plane coordinates of energy accurate perception, without prior art relying on spring accurately regulate, and curved surface printing is possibly realized.
Preferred as the present invention, described induction installation comprises limit switch, described limit switch is located at the position that described supporting plate is conflicted with described connecting portion, described limit switch one end is hinged with described supporting plate, and described induction installation also comprises the spring element of the elastic force providing described limit switch to produce to described connecting portion direction.
Described spring element can be spring or elastic force post, described limit switch is ejected to described connecting portion direction, described shower nozzle but without drop to conflict with described workbench time, described limit switch is conflicted bottom described connecting portion, cannot ejecting, when described connecting portion separates with described supporting plate, described limit switch ejects, can being provided with sense of touch induction apparatus on described limit switch, described sense of touch induction apparatus can transmit this signal to printer once sense that described limit switch ejects.
Preferred as the present invention, described shower nozzle is arranged with the overcoat being made up of heat-resistant elastic material near one end of described workbench.
Described shower nozzle is wanted often to conflict with described workbench, and described workbench many employings face glass is made, and described overcoat can play cushioning effect during conflict, protects described shower nozzle.
Preferred as the present invention, described connecting portion adopts arc-shaped to be connected transition with described extension, the one side of described connecting portion and the conflict of described supporting plate and plane-parallel.
Preferred as the present invention, described workbench lower surface posts the heating film being connected with power supply
Preferred as the present invention, described heating film is the heating film being made up of polyimides.
Automatically identify the operational approach of the device of curved surface initial position suitable in 3D printer, this kind of operational approach comprises the steps of
1, level fixed point step: regulate Y-axis and move device, regulate described X-axis and move device, described shower nozzle is navigated to the sampling optimization vertical direction of described workbench.
2, vertical lift step: regulate described Z axis and move device so that described shower nozzle declines to the direction of described workbench.
3, record Z0 coordinate step: described shower nozzle is conflicted with described workbench, it is impossible to decline, now described screw mandrel continues to decline, described supporting plate and described coupling part from, separating action is captured by described induction installation, thus recording this point, namely at the coordinate of Z-direction initial position.
4, repeat to take a step: on the sampling point position of other needs detections of described workbench, repeat step, record the coordinate corresponding to these sampled points.
5, calculation procedure: the coordinate of the built-in chip of 3D printer multiple sampled points to capturing before is calculated, utilizes linear equation to calculate on whole workbench 1 the Z0 coordinate corresponding to each position.
6, printing step: 3D printer shower nozzle according to the 3D model numeral document control of input chip successively prints stereomodel on described workbench.
Preferred as the present invention, described sampled point is 9, is positioned on described workbench in matrix pattern.
In sum, there is advantages that
1, the Z0 position corresponding to multiple test point can be detected, calculated the Z0 coordinate of whole workbench by linear equation, thus reducing in prior art the level levelling demand to described workbench, and curved surface can be realized print.
2, described overcoat effectively protects the collision that is subject to when conflicting described workbench of described shower nozzle, lifting means service life.
3, described heating film promotes the temperature of described workbench, promotes the fixed effect printing material.
Accompanying drawing explanation
Fig. 1 is the schematic perspective view of embodiment 1；
Fig. 2 is the enlarged diagram at Figure 1A place；
Schematic diagram when Fig. 3 is that in embodiment 1, shower nozzle is conflicted with workbench
Fig. 4 is the enlarged diagram at Fig. 3 B place.
In figure:
1, workbench, 2, X-axis support, 21, extension, 22, connecting portion, 4, shower nozzle, 5, Z axis move device, 51, screw mandrel, 52, supporting plate, 6, base plate, 7, induction installation.
Detailed description of the invention
Below in conjunction with accompanying drawing, the present invention is described in further detail.
This specific embodiment is only explanation of the invention; it is not limitation of the present invention; the present embodiment can be made the amendment not having creative contribution as required by those skilled in the art after reading this specification, but as long as being affected by the protection of Patent Law in scope of the presently claimed invention.
Embodiment 1, as shown in Figure 1, Figure 2, Figure 3 and Figure 4: automatically identify the device of curved surface initial position suitable in 3D printer, including for putting the workbench 1 of printer model and spraying the shower nozzle 4 of material formation model on workbench 1, this kind is applicable to 3D printer and automatically identifies that the device of curved surface initial position comprises and be positioned at X-axis support 2 parallel with workbench 1 above workbench 1 and be connected with shower nozzle 4 so that the X-axis that shower nozzle 4 can slide along X-axis on X-axis support 2 move device and connects X-axis support 2 and the Z axis that X-axis support 2 slides in vertical direction can be made to move device 5；X-axis support 2 be included in X-direction extend extension 21 and one end be connected with extension 21, the other end near workbench 1 direction extension connecting portion 22；Z axis moves device 5 and comprises the screw mandrel 51 through connecting portion 22 and the supporting plate 52 that be connected and with the end of connecting portion 22 conflict fixing with screw mandrel 51.Connecting portion 22 adopts arc-shaped to be connected transition, the one side of connecting portion 22 and supporting plate 52 conflict and plane-parallel with extension 21.Z axis moves device 5 and is provided with the induction installation 7 that can sense that supporting plate 52 departs from connecting portion 22.
User regulates Y-axis and moves device, regulate X-axis and move device, shower nozzle 4 is navigated to the sampling optimization vertical direction of workbench 1, it can be the slide bar and belt that are connected with workbench 1 in prior art that Y-axis regulates device, workbench 1 is driven to move in horizontal plane Y direction, regulate the relative position of workbench 1 and shower nozzle 4, X-axis moves device can adopt the slide rail being embedded in extension 21 bottom surface, shower nozzle 4 is connected on the slide block that can slide on slide rail, thus realizing shower nozzle 4 can move to any point on workbench；When shower nozzle moves to the surface of sampling point position, operation Z axis moves device lifting, screw mandrel 51 declines, supporting plate 52 is driven to decline, the lower surface of the upper surface of supporting plate 52 and connecting portion 22 is conflicted, X-axis support 2 and the shower nozzle 4 being connected on X-axis support 2 is driven to decline, when shower nozzle 4 drops to certain altitude, conflict with workbench 1, it is impossible to continue to decline, and screw mandrel 51 continues to decline, supporting plate 52 and connecting portion 22 depart from, the sensed device 7 of this disengaging action captures, so that it is determined that Z axis coordinate now is the Z axis initial coordinate of this sampled point, is Z0 coordinate.Shower nozzle 4 is arranged with the overcoat being made up of heat-resistant elastic material near one end of workbench 1.Shower nozzle 4 is wanted often to conflict with workbench 1, and workbench more than 1 adopts face glass to make, and overcoat can play cushioning effect during conflict, protects shower nozzle 4.
Induction installation 7 comprises limit switch, and limit switch is located at the position that supporting plate 52 is conflicted with connecting portion 22, and limit switch one end is hinged with supporting plate 52, and induction installation 7 also comprises the spring element of the elastic force providing limit switch to produce to connecting portion 22 direction.Spring element can be spring or elastic force post, limit switch is ejected to connecting portion 22 direction, shower nozzle 4 but without drop to conflict with workbench 1 time, conflict bottom limit switch connection portion 22, cannot ejecting, when connecting portion 22 separates with supporting plate 52, limit switch 52 ejects, can being provided with sense of touch induction apparatus on limit switch 52, sense of touch induction apparatus can transmit this signal to printer once sense that limit switch 52 ejects.
Workbench 1 lower surface posts the heating film being connected with power supply, and heating film is the heating film being made up of polyimides.Heating film promotes the temperature of described workbench, promotes the fixed effect printing material.
User repeats above-mentioned action by the multiple sampled points on workbench 1 and carries out the Z0 data sampling of multiple sampled point, the Z0 coordinate of all positions on workbench 1 is recorded according to linear equation, if workbench 1 size is big, then increase the quantity of sampled point, if workbench 1 is in order to coordinate model ground shape curved surface degree strong, then increase the distribution density of sampled point, thus realizing shower nozzle 4 energy Z0 data corresponding to each plane coordinates of accurate perception, without prior art relying on spring accurately regulate, and curved surface printing is possibly realized.
Automatically identify the operational approach of the device of curved surface initial position suitable in 3D printer, this kind of operational approach comprises the steps of
1, level fixed point step: regulate Y-axis and move device, regulates X-axis and moves device, shower nozzle 4 navigates to the sampling optimization vertical direction of workbench 1.
2, vertical lift step: regulate Z axis and move device 5 so that shower nozzle 4 declines to the direction of workbench 1.
3, record Z0 coordinate step: shower nozzle 4 and workbench 1 are conflicted, it is impossible to decline, now screw mandrel 51 continues to decline, and supporting plate 52 separates with connecting portion 22, and the sensed device 7 of separating action captures, thus recording the Z0 of this point, namely at the coordinate of Z-direction initial position.
4, repeat to take a step: on the sampling point position of other needs detections of workbench 1, repeat step 13, record the Z0 coordinate corresponding to these sampled points.Sampled point is 9, is positioned in matrix pattern on workbench 1.
5, calculation procedure: the coordinate of the built-in chip of 3D printer multiple sampled points to capturing before is calculated, utilizes linear equation to calculate on whole workbench 1 the Z0 coordinate corresponding to each position.
6, printing step: 3D printer successively prints stereomodel according to the 3D model numeral document control shower nozzle 4 of input chip on workbench 1.
Claims (8)
1. it is applicable to 3D printer and automatically identifies the device of curved surface initial position, including the workbench (1) for putting printer model and the shower nozzle (4) forming model at described workbench (1) upper ejection material, it is characterized in that: suitable in 3D printer, this kind automatically identifies that the device of curved surface initial position comprises and be positioned at the X-axis support (2) that described workbench (1) top is parallel with described workbench (1), the X-axis that described shower nozzle (4) slides along X-direction on described X-axis support (2) is driven to move device and connect described X-axis support (2) and the Z axis that described X-axis support (2) is slided in vertical direction can be made to move device (5)；Described X-axis support (2) is included in extension (21) that X-direction extends and one end is connected with described extension (21), and the other end is to the connecting portion (22) of close described workbench (1) direction extension；Described Z axis moves device (5) and comprises the screw mandrel (51) through described connecting portion (22) and the supporting plate (52) that be connected and with the end of described connecting portion (22) conflict fixing with described screw mandrel (51)；Described Z axis moves device (5) and is provided with the induction installation (7) that can sense that described supporting plate (52) and described connecting portion (22) depart from, and described X-axis moves device and is connected with described shower nozzle (4).
2. the device automatically identifying curved surface initial position suitable in 3D printer according to claim 1, it is characterized in that: described induction installation (7) comprises limit switch, described limit switch is located at the position that described supporting plate (52) is conflicted with described connecting portion (22), described limit switch one end is hinged with described supporting plate (52), and described induction installation (7) also comprises the spring element providing described limit switch to produce to described connecting portion (22) direction.
3. the device automatically identifying curved surface initial position suitable in 3D printer according to claim 1, it is characterised in that: described shower nozzle (4) is arranged with, near one end of described workbench (1), the overcoat being made up of heat-resistant elastic material.
4. the device automatically identifying curved surface initial position suitable in 3D printer according to claim 1, it is characterized in that: described connecting portion (22) is connected, with described extension (21) employing arc-shaped, one side and the plane-parallel that transition, described connecting portion (22) and described supporting plate (52) are conflicted.
5. the device automatically identifying curved surface initial position suitable in 3D printer according to claim 1, it is characterised in that: described workbench (1) lower surface posts the heating film being connected with power supply.
6. the device automatically identifying curved surface initial position suitable in 3D printer according to claim 5, it is characterised in that: described heating film is the heating film being made up of polyimides.
7. the operational approach of the device automatically identifying curved surface initial position suitable in 3D printer according to claim 1 or 2 or 3 or 4 or 5 or 6, it is characterised in that: this kind of operational approach comprises the steps of
1), level fixed point step: regulate Y-axis and move device, regulate described X-axis and move device, described shower nozzle (4) is navigated to the vertical direction of the sampled point of described workbench (1);
2), vertical lift step: regulate described Z axis and move device (5) so that described shower nozzle (4) declines to the direction of described workbench (1);
3), record Z0 coordinate step: described shower nozzle (4) is conflicted with described workbench (1), cannot decline, now described screw mandrel (51) continues to decline, described supporting plate (52) separates with described connecting portion (22), separating action is captured by described induction installation (7), thus recording the Z0 of this point, namely at the coordinate of Z-direction initial position;
4), repeat to take a step: on the sampling point position of other needs detections of described workbench (1), repeat step 13, record the Z0 coordinate corresponding to these sampled points;
5), calculation procedure: the coordinate of the built-in chip of 3D printer multiple sampled points to capturing before is calculated, and utilizes linear equation to calculate the upper Z0 coordinate corresponding to each position of whole workbench (1);
6), printing step: 3D printer shower nozzle (4) according to the 3D model numeral document control of input chip successively prints stereomodel on described workbench (1).
8. the operational approach of the device automatically identifying curved surface initial position suitable in 3D printer according to claim 7, it is characterised in that: described sampled point is 9, is positioned in matrix pattern on described workbench (1).
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104842559A (en) * | 2015-05-06 | 2015-08-19 | 广西科技大学 | Spray head automatic distance adjustment 3D (Three Dimensional) printer |
| CN106001569B (en) * | 2016-07-07 | 2017-12-26 | 四川天塬增材制造材料有限公司 | A kind of curved shell Rotating fields metal increases material preparation method |
| CN106568926A (en) * | 2016-10-31 | 2017-04-19 | 同济大学 | 3D printed building mortar bulk property testing device |
| CN110961633A (en) * | 2018-09-28 | 2020-04-07 | 安世亚太科技股份有限公司 | Three-dimensional printing method and device |
| CN109591290A (en) * | 2018-12-29 | 2019-04-09 | 浙江大学滨海产业技术研究院 | A kind of 3D printer syringe needle and printing surface positioning device and method |
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| CN103395209A (en) * | 2013-08-08 | 2013-11-20 | 西安非凡士机器人科技有限公司 | Large 3D printer based on FDM principles |
| CN103591934A (en) * | 2013-10-24 | 2014-02-19 | 燕山大学 | Real-time levelness monitoring system for workbench of 3D (three-dimensional) printer |
| CN204382667U (en) * | 2014-11-25 | 2015-06-10 | 湖州艾先特电子科技有限公司 | Be applicable to the device that 3D printer identifies curved surface initial position automatically |
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| JP2003065752A (en) * | 2001-08-28 | 2003-03-05 | Sumitomo Metal Mining Co Ltd | Three-dimensional board shape measuring device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103395209A (en) * | 2013-08-08 | 2013-11-20 | 西安非凡士机器人科技有限公司 | Large 3D printer based on FDM principles |
| CN103591934A (en) * | 2013-10-24 | 2014-02-19 | 燕山大学 | Real-time levelness monitoring system for workbench of 3D (three-dimensional) printer |
| CN204382667U (en) * | 2014-11-25 | 2015-06-10 | 湖州艾先特电子科技有限公司 | Be applicable to the device that 3D printer identifies curved surface initial position automatically |
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