CN106079445B - A kind of 3 D-printing drives auxiliary support apparatus more - Google Patents

A kind of 3 D-printing drives auxiliary support apparatus more Download PDF

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Publication number
CN106079445B
CN106079445B CN201610529335.1A CN201610529335A CN106079445B CN 106079445 B CN106079445 B CN 106079445B CN 201610529335 A CN201610529335 A CN 201610529335A CN 106079445 B CN106079445 B CN 106079445B
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China
Prior art keywords
printing
movable supporting
supporting plate
support apparatus
auxiliary support
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CN201610529335.1A
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CN106079445A (en
Inventor
栾丛丛
姚鑫骅
傅建中
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Zhejiang University ZJU
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Zhejiang University ZJU
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B33ADDITIVE MANUFACTURING TECHNOLOGY
    • B33YADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
    • B33Y30/00Apparatus for additive manufacturing; Details thereof or accessories therefor

Abstract

Auxiliary support apparatus is driven the invention discloses a kind of 3 D-printing more, including:Lift module;Mounting bracket is supported, on the mobile terminal of lifting module;Polylith movable supporting plate, is mutually parallel and continuous splicing is arranged in the width direction;Horizontal drive module;The horizontal drive module includes:Shaft;Multiple cams are rotatably installed in the shaft and with the transmission gear being fixedly and coaxially connected;Multiple support mounting holes, one end of any movable supporting plate pass through corresponding support mounting hole and are abutted with the edge of corresponding cam;Multiple return springs are socketed in respectively on multiple movable supporting plates;Multiple rotational power sources, power output end are connected with the worm screw coordinated with the transmission gear of corresponding cam;The 3 D-printing of the present invention drives auxiliary support apparatus more, saves printed material and molding time, can also form support profiles as needed, applied widely.

Description

A kind of 3 D-printing drives auxiliary support apparatus more
Technical field
The present invention relates to three Dimensional Printing of Rapid Prototyping technical fields, and Auxiliary support is driven more particularly to a kind of 3 D-printing more Device.
Background technology
Three-dimensional printing technology (one kind of RP technique) is the fast short-term training to grow up middle and later periods the 1980s The in-depth and development of shape technology, based on digital model file, come constructed object by way of successively printed material.Rely on Great technical advantage, three-dimensional printing technology and big data, cloud computing, internet etc. are emerging and advanced technology becomes digitlization and makes The main contents made and the driving main force of " made in China 2025 " are known as being expected to generate " the third time industrial revolution " Representative art.
The technical characterstic that 3 D-printing is successively superimposed so that the forming process with hanging structure part must be introduced into auxiliary Support, needs to remove these supplementary structures after being manufactured.The generation method of support construction is always that three-dimensional is beaten for a long time The bottleneck of print technology development has important influence to molding time, manufacture surface quality.About 3 D-printing support generation side Method has a large amount of scholars to be studied, and reaches the mesh saved the time-write interval and save backing material by optimizing support generating method 's.In these methods backing material be exactly often printed material in itself, have nonrepeatability, printing after the completion of need extra time These auxiliary support structures are removed, printed material is not only wasted and also wastes time.
Meanwhile three-dimensional printing technology is also there is some limitations, when there are (moulds during suspending part in the model for needing to print It is empty under certain part in type, such as bridge), material is nowhere fixed after squeezing out also can not just to be shaped, and asked to solve this Topic, printer needs first to print enough supporting modules, and supporting module is independently of the model that need to be printed, for the model that need to print Suspending part provides fixation point.After the completion of model printing, suspending part is solidified as solid, at this time can remove supporting module.
Supporting module must meet two conditions, first, stabilized structure, can provide foot for the suspending part for the model that need to be printed Support force that is enough and stablizing;Second is that be easily removed, it is impossible to need to print model bonding it is too tight so that model solidification after can not shell From.But this support construction expends the time, wastes silk, and remove inconvenience.
To solve the above-mentioned problems, branch can be reduced by improving material or improving process route when printing at present Support structure, such as the patent document of application publication number CN 105058798A disclose a kind of support of fused deposition modeling 3 D-printing Module and its generation method, the supporting module are used to support the suspending part for the model for needing 3 D-printing.The supporting module packet Multiple support units of spaced arrangement are included, multiple fixation points are provided with suspending part described to one.The supporting module is compared In previous supporting module, can more easily be removed while the performance for keeping support from the suspending part of model.It is but new Section bar material is expensive, and modified technique can cause program complicated, and the engine that prevents to increase income is from meeting printing requirement.
In conclusion based on the above problem, for the simple 3 D-printing structure of regular geometric cross sectional shape, propose it is a kind of according to It is very necessary to form Auxiliary support by extraneous structure to reach saving material and saving time-write interval.
Invention content
Auxiliary support apparatus is driven the present invention provides a kind of 3 D-printing more, realizes that three-dimensionally shaped ontology exempts from printing support, Printed material and molding time are saved, particularly suitable for supporting the mass production of print structure part.
A kind of 3 D-printing drives auxiliary support apparatus more, including:
Lift module;
Mounting bracket is supported, on the mobile terminal of lifting module;
Polylith movable supporting plate, is mutually parallel and continuous splicing is arranged in the width direction;
Horizontal drive module, mounted on support mounting bracket on, the movable supporting plate is driven to translate along its length with Support end forms support profiles;
The horizontal drive module includes:
Shaft, on the support mounting bracket, length extends along movable supporting plate width direction;
Multiple cams are rotatably installed in the shaft and with the transmission gear being fixedly and coaxially connected, axially distributed And installation is corresponded respectively with polylith movable supporting plate;
Multiple support mounting holes are opened on support mounting bracket, are distributed along movable supporting plate width direction, any activity branch One end of fagging passes through corresponding support mounting hole and is abutted with the edge of corresponding cam;
Multiple return springs are socketed in respectively on multiple movable supporting plates, and any return spring is connected to corresponding activity branch Between the edge of the locating piece of fagging and corresponding support mounting hole;Locating piece is frequently with pin.
Multiple rotational power sources correspond, power output end connection on support mounting bracket and with multiple cams There is the worm screw coordinated with the transmission gear of corresponding cam.
The present invention forms the branch needed by setting polylith movable supporting plate, by horizontal drive module control movable supporting plate Profile is supportted, by the position of cam structure control support profiles, instead of this support structure of 3 D-printing, so as to save printed material And shortening forming time.
The present invention sets individual rotational power source to be driven cam, independent so as to be carried out to every piece of movable supporting plate Driving with the rotation driving movable supporting plate translation of cam, forms various required support profiles, application range is wider.
For the ease of manufacturing and installing, it is preferred that be fixed with the bar shaped being arranged in parallel with shaft on the support mounting bracket Stent offers the support mounting hole on the bar shaped stent.
For the ease of manufacturing and installing, it is preferred that the return spring is between bar shaped stent and shaft.
The supporting section profile needed is formed in support end, it is preferred that the support peace in order to accurately control movable plate Dress hole is square hole, and the movable supporting plate carries the via segments for being less than main part with square hole cooperation and width, the mistake Hole section end is abutted with the edge of cam.
For the ease of manufacturing and installing, it is preferred that the periphery of the square hole towards the side of shaft, which is recessed, to be used for The round hole of embedded return spring end.
The supporting section profile needed is formed in support end, it is preferred that the cam in order to accurately control movable plate Edge thickness be less than main body and form stepped ramp type edge, the end of corresponding movable supporting plate is equipped with and the stepped ramp type edge mate Rectangular aperture.
In order to improve the stability of lifting and precision, it is preferred that the lifting module uses the ball-screw of vertically-arranged.
In order to more compactly install apparatus of the present invention, it is preferred that the worm screw corresponding to adjacent cams forms 20 between each other ~90 ° of angle.It is more convenient that above structure installs the power source of driving worm screw, it is not easy to generate interference.
Each rotational power source in order to facilitate the installation of, it is preferred that the worm screw corresponding to adjacent cams is substantially orthogonal to each other.
It is further preferred that the driving end of the worm screw corresponding to two cams of one cam in interval is towards identical.
In order to make rotation stress evenly, prolong the service life and operation stability, it is preferred that driving end is towards identical In worm screw, adjacent worm screw interlaced arrangement in an axial direction.Shaft part of the force can in this way offset, improves the fortune of each cam Dynamic stability, while be conducive to extend the service life of shaft.
Beneficial effects of the present invention:
The 3 D-printing of the present invention drives auxiliary support apparatus more, saves printed material and molding time, can also be according to need Support profiles are formed, it is applied widely.
Description of the drawings
Fig. 1 is that the 3 D-printing of the present invention drives the dimensional structure diagram of auxiliary support apparatus more.
Fig. 2 is the movable supporting plate of the present invention and the dimensional structure diagram of horizontal drive module cooperation.
Fig. 3 is the dimensional structure diagram of Fig. 1 middle cases.
Fig. 4 is the structure diagram of the movable supporting plate of the present invention.
Fig. 5 is the structure diagram of the bar shaped stent of the present invention.
Fig. 6 is the dimensional structure diagram of the cam with transmission gear of the present invention.
Structure diagram when Fig. 7 is the operation that the present invention prints certain three-dimensional structure realization Auxiliary support.
Each reference numeral is in figure:
1. babinet, 2. movable supporting plates, 3. bar shaped stents, 4. shafts, 5. short worm screws, 6. cams, 7. long worm screws, 8. casees Lid, 9. driving motors, 10. ball-screws, 11. driving motors, 12. return springs, 13. three-dimensional structures, 101. circular through holes, 102. hanging plate, 103. bearing saddle bores, 201. supporting surfaces, 202. rectangular apertures, 203. pins, 301. threaded rods, 302. first ladders Hole, 303. second stepped holes, 304. rack bodies, 401. bearings, 601. transmission gears, 602. boss, 801. driving motor seats, 802. through-hole.
Specific embodiment
With reference to each attached drawing, the present embodiment is described in detail:
As depicted in figs. 1 and 2, the 3 D-printing of the present embodiment drives auxiliary support apparatus more and includes:
Ball-screw 10 and driving motor 11 drive 10 nut of ball-screw to drive on babinet 1 and move down by driving motor 11 It is dynamic, it is precisely controlled Support Position;
Bar shaped stent 3;
Polylith movable supporting plate 2 is arranged on bar shaped stent 3 and mutually splices;
Return spring 12 is arranged between movable supporting plate 2 and bar shaped stent 3, applies certain to movable supporting plate 2 Clamp force;
Babinet 1, on 10 nut of ball-screw;
Shaft 4 is arranged on babinet 1;
Multiple cams 6, are rotatably installed in shaft 4;
Multiple driving motors 9, are arranged on babinet 1 and case lid 8, the driving motor 9 being arranged on babinet 1 and short worm screw 5 Connection, the driving motor 9 being arranged on case lid 8 are connect with long 7 one end of worm screw, long worm screw 7 and the driving pair of 5 arranged for interval of short worm screw The cam 6 answered, driving motor 9 are power source.
As shown in figure 3, babinet 1 is equipped with hanging plate 102, bearing saddle bore 103, circular through hole 101, rectangular through-hole and staggeredly cloth The multiple driving motor seats put are again provided with the driving motor seat 801 of interlaced arrangement and through-hole 802 on case lid 8;In Fig. 2 Shown 4 both ends of shaft are mounted on bearing saddle bore 103, and 3 both ends of bar shaped stent are mounted on circular through hole 101 and bolt is fixed, For movable supporting plate 2 by rectangular through-hole (being not drawn into figure) on bar shaped stent 3, hanging plate 102 is equipped with through-hole, babinet 1 It is connect by hanging plate 102 by bolt with the nut thread on ball-screw 10;Long worm screw in driving motor 9 and Fig. 2 on case lid 8 7 connections, the driving motor 9 of 1 side of babinet are connect with worm screw short in Fig. 2.
The 3 D-printing of the present embodiment drives auxiliary support apparatus more can singly cover unilateral support use, be set in the present embodiment Two sets, use is arranged symmetrically, as illustrated in figures 1 and 7.
As shown in figure 4, the structure of movable supporting plate 2 is as follows:Equipped with pin hole, supporting surface 201, rectangular aperture 202, pin hole with Return spring 12 is equipped in Fig. 2 between bar shaped stent 3, return spring 12 is in 3 first stepped hole of bar shaped stent and is arranged on movable branch Always compressive state is between pin 203 on fagging 2.
As shown in figure 5, the structure of bar shaped stent 3 is as follows:It is round hole equipped with the first stepped hole 302, for installing return Spring 12, the second stepped hole 303 is square hole, for limiting 2 circumferential position of movable supporting plate, threaded rod 301, for stent sheet Body 304 is fixed on babinet 1.
As shown in fig. 6, the structure of cam 6 is as follows:Including transmission gear 601 and boss 602, boss 602 and movable supporting 202 clearance fit of rectangular aperture of 2 end of plate, transmission gear 601 are interference fitted with the bearing 401 in shaft 4, with short worm screw 5 It is engaged with long worm screw 7.
The assembling process of the present embodiment is as follows:
As shown in figs. 1 to 6, movable supporting plate 2 is each passed through the second stepped hole 303 and the first ladder on bar shaped stent 3 Return spring 12 is sleeved on 2 end of movable supporting plate and one end and is positioned in the first stepped hole 302, pin 203 is passed through by hole 302 2 end pin hole of movable supporting plate completes 12 axially position of return spring, and movable supporting plate 2 passes through the rectangular through-hole of babinet 1, and Threaded rod 301 across circular through hole 101 with rack body 304 is connect, nut is mounted on threaded rod 301, realizes bar shaped Stent 3 is fixed;
As shown in Fig. 1~7, the shaft 4 equipped with bearing 401 is passed through into 1 bearing saddle bore 103 of babinet, cam 6 is mounted on and is turned On axis 4, and ensure the boss 601 of each cam 6 and 202 clearance fit of rectangular aperture of movable supporting plate 2, it in order will be all Cam 6 is installed in shaft 4, and long 7 one end of worm screw is mounted on babinet 1, and the other end is mounted on case lid 8 and driving motor 9 Connection, short worm screw 5 is installed on babinet 1 and is connect with driving motor 9, and drive module assembling is so far supported to terminate;
As shown in figures 1 and 3, the hanging plate 102 on babinet 1 and the nut of ball-screw 10 are connected with, will driven Motor 11 is installed on ball-screw 10, and so far all module assemblings terminate.
The course of work of the present embodiment is as follows:
As shown in Fig. 1~7, when printer is printed to when needing supporting layer, 11 drive case 1 of driving motor moves up and down, So as to which movable supporting plate 2 be driven to move to the layer for needing to support;Each driving motor 9 respectively drives cam 6, drives movable supporting plate 2 are axially moved along the stepped hole on bar shaped stent 3, form the support profiles (profile of last printable layer) of needs, print head with Movable supporting plate 2 and original printable layer continue to print as the support construction of current layer.
When printing to when needing the layer supported again, driving motor 9 controls cam 6 that movable supporting plate 2 is driven to retract, and drives The layer for needing to support is moved in 11 drive case 1 of motor, driving cam 6 drives movable supporting plate 2 to be formed newly to driving motor 9 again Support profiles, printer continues to print.
The foregoing is merely the preferred embodiment of the present invention, not thereby limit the scope of patent protection of the present invention, all It is the equivalent structure transformation made with description of the invention and accompanying drawing content, is directly or indirectly used in other relevant technologies Field similarly includes within the scope of the present invention.

Claims (10)

1. a kind of 3 D-printing drives auxiliary support apparatus more, which is characterized in that including:
Lift module;
Mounting bracket is supported, on the mobile terminal of lifting module;
Polylith movable supporting plate, is mutually parallel and continuous splicing is arranged in the width direction;
Horizontal drive module on support mounting bracket, drives the movable supporting plate to translate along its length to support End forms support profiles;
The horizontal drive module includes:
Shaft, on the support mounting bracket, length extends along movable supporting plate width direction;
Multiple cams are rotatably installed in the shaft and with the transmission gear being fixedly and coaxially connected, it is axially distributed and with Polylith movable supporting plate corresponds installation respectively;
Multiple support mounting holes are opened on support mounting bracket, are distributed along movable supporting plate width direction, any movable supporting plate One end pass through corresponding support mounting hole and abutted with the edge of corresponding cam;
Multiple return springs are socketed in respectively on multiple movable supporting plates, and any return spring is connected to corresponding movable supporting plate Locating piece and corresponding support mounting hole edge between;
Multiple rotational power sources, mounted on support mounting bracket on and with multiple cams correspond, power output end be connected with The worm screw of the transmission gear cooperation of corresponding cam.
2. 3 D-printing as described in claim 1 drives auxiliary support apparatus more, which is characterized in that solid on the support mounting bracket Surely there is the bar shaped stent being arranged in parallel with shaft, the support mounting hole is offered on the bar shaped stent.
3. 3 D-printing as claimed in claim 2 drives auxiliary support apparatus more, which is characterized in that the return spring is located at item Between shape stent and shaft.
4. 3 D-printing as claimed in claim 3 drives auxiliary support apparatus more, which is characterized in that the support mounting hole is side Shape hole, the movable supporting plate carry the via segments for being less than main part with square hole cooperation and width, the via segments end It is abutted with the edge of cam.
5. 3 D-printing as claimed in claim 4 drives auxiliary support apparatus more, which is characterized in that the square hole is towards shaft The periphery of side be recessed round hole for being embedded in return spring end.
6. 3 D-printing as described in claim 1 drives auxiliary support apparatus more, which is characterized in that the edge of the cam is thick Degree is less than main body and forms stepped ramp type edge, and the end of corresponding movable supporting plate is equipped with opens with the rectangle of the stepped ramp type edge mate Mouthful.
7. 3 D-printing as described in claim 1 drives auxiliary support apparatus more, which is characterized in that the lifting module is using vertical The ball-screw put.
8. 3 D-printing as described in claim 1 drives auxiliary support apparatus more, which is characterized in that the snail corresponding to adjacent cams Bar forms 20~90 ° of angle between each other.
9. 3 D-printing as claimed in claim 8 drives auxiliary support apparatus more, which is characterized in that the snail corresponding to adjacent cams Bar is substantially orthogonal to each other.
10. 3 D-printing as claimed in claim 9 drives auxiliary support apparatus more, which is characterized in that the two of one cam in interval The driving end of worm screw corresponding to cam is towards identical.
CN201610529335.1A 2016-06-30 2016-06-30 A kind of 3 D-printing drives auxiliary support apparatus more Active CN106079445B (en)

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Publication number Priority date Publication date Assignee Title
CN107571505A (en) * 2017-08-16 2018-01-12 中国人民解放军海军工程大学 A kind of restructural 3D printer platform and the method using its printing cantilever design product
CN107984764B (en) * 2017-09-30 2019-10-25 浙江大学 A kind of 3 D-printing method
CN107856310B (en) * 2017-10-19 2020-02-11 西安交通大学 Online partition supporting method and system for 3D printing of large-size suspension component
CN108162397A (en) * 2017-12-29 2018-06-15 广州艺林信息科技有限公司 A kind of 3D printer construction platform

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CN101855061A (en) * 2007-09-17 2010-10-06 3D系统公司 Region-based supports for parts produced by solid freeform fabrication
CN104903075A (en) * 2012-10-31 2015-09-09 荷兰应用自然科学研究组织Tno Method and apparatus for making tangible products by layerwise manufacturing
CN105711095A (en) * 2016-03-18 2016-06-29 浙江大学 Supporting device for three-dimensional printing and three-dimensional printing method

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Publication number Priority date Publication date Assignee Title
CN101426631A (en) * 2004-06-14 2009-05-06 矫正技术公司 Systems and methods for fabricating 3-d objects
CN101855061A (en) * 2007-09-17 2010-10-06 3D系统公司 Region-based supports for parts produced by solid freeform fabrication
CN104903075A (en) * 2012-10-31 2015-09-09 荷兰应用自然科学研究组织Tno Method and apparatus for making tangible products by layerwise manufacturing
CN105711095A (en) * 2016-03-18 2016-06-29 浙江大学 Supporting device for three-dimensional printing and three-dimensional printing method

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