CN103552243B - The adjusting process of molding flat and nozzle plane of motion - Google Patents
The adjusting process of molding flat and nozzle plane of motion Download PDFInfo
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- CN103552243B CN103552243B CN201310487335.6A CN201310487335A CN103552243B CN 103552243 B CN103552243 B CN 103552243B CN 201310487335 A CN201310487335 A CN 201310487335A CN 103552243 B CN103552243 B CN 103552243B
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Abstract
The present invention relates to 3D printing device or rapidform machine technical field, refer in particular to the adjusting process of a kind of molding flat and nozzle plane of motion, hoistable platform is equiped with at least three adjusting parts, the edge of workbench is equiped with calibration testing block, first determine the mechanical zero of nozzle, then hoistable platform and workbench return after rising to touching nozzle and drop to reference position, and the rising value that record obtains when touching detects at every turn, calculate the difference between each rising value, the height at each position of workbench is adjusted by adjusting part described in adjustment, reduce above-mentioned difference, above-mentioned steps, until above-mentioned difference is zero.Described calibration testing block is used for the calibration location between nozzle and workbench, by namely can regulate the depth of parallelism between workbench and the plane of motion of nozzle to adjusting part, the spacing of the plane of motion of workbench and nozzle can be regulated again, two adjustment objects only need a calibration procedures to realize, and structure is simple.
Description
Technical field
The present invention relates to 3D printing device or rapidform machine technical field, refer in particular to the adjusting process of a kind of molding flat and nozzle plane of motion.
Background technology
The concept of three Dimensional Printing of Rapid Prototyping technology is proposed in 1992 by people such as scansE.M. and cimaMJ. of Massachusetts Institute Technology (MIT) the earliest.3 D-printing is a kind of RP technique based on drop reaction-injection moulding, individual layer printing-forming is similar to ink jet printing process, namely under the excitation of data signal, make the liquid material in printhead working chamber form drop (Droplets) instantaneously or by fluidic vectoring thrust drop, spray with certain frequency rate from nozzle and be ejected into assigned address and successively pile up formation Three-dimensional Entity Components.There is multiple 3D printing technique at present, technology conventional at present comprises binding material 3 D-printing, photocuring 3 D-printing and melted material 3 D-printing etc.
Especially at the FDM(melted extrusion modeling of 3D printer) technical field, existing 3D printer also comprises the workbench that can be elevated, but after 3D printer dispatches from the factory, its workbench cannot regulate, when the shaping work table top of workbench and the plane of motion of nozzle not parallel time, then easily there is tilt problem in the workpiece printed, will have a strong impact on the formed precision printing workpiece, percent defective is higher.In addition, because the lifting travel of workbench is fixed, therefore adjustable height is fixed, distance between workbench and the plane of motion of nozzle excessive or too small time, be difficult to the adjustment by realizing distance to the adjustment of workbench, by controlling the lifting travel of workbench, then can affect the calibration accuracy between nozzle and workbench, defect is obvious.
In addition, existing 3D printer apparatus does not have original point position benchmark, thus make the workpiece of the printing position be positioned on workbench be difficult to hold, when printing larger workpiece, print the moving range that workpiece easily exceeds printing head, thus cause scrapping of workpiece, bring larger puzzlement to user.
Summary of the invention
It is simple that the technical problem to be solved in the present invention is to provide a kind of structure, not only can determine calibration to the mechanical zero of nozzle, the adjustment of height and gradient can be carried out workbench, and the molding flat of printing nozzle initial point calibration and the adjusting process of nozzle plane of motion can be realized.
In order to solve the problems of the technologies described above, the present invention adopts following technical scheme: the adjusting process of a kind of molding flat and nozzle plane of motion, 3D printer comprises hoistable platform and workbench, described hoistable platform is equiped with at least three adjustment groups, workbench is fixedly connected with adjusting part, the edge of workbench is equiped with calibration testing block, and alignment step comprises:
A, hoistable platform and workbench drop to reference position;
B, determine the mechanical zero of nozzle;
C, by directly over nozzle successively mobile each adjusting part, hoistable platform and workbench return after rising to touching nozzle and drop to reference position, and the rising value obtained when each touching of record detects;
D, calculate difference between each rising value, according to this difference, adjusted the height at each position of workbench by adjusting part described in adjustment, reduce above-mentioned difference;
E, repetition above-mentioned steps C and step D, until above-mentioned difference is zero.
Wherein, described calibration testing block comprises two mutual vertical bar blocks connected vertically, and this vertical bar block is fixedly connected with the right angle portion of described workbench;
In stepb, when determining the horizontal coordinate of mechanical zero, nozzle is touched twice at the outer wall diverse location of a vertical bar block, obtain the horizontal coordinate of two touch points, and the linear equation of these two touch points is obtained by calculating, nozzle is touched twice at the outer wall diverse location of another vertical bar block again, obtain the horizontal coordinate of two touch points, same another linear equation being obtained these two touch points by Computing, finally by the coordinate calculating two straight-line intersections, this coordinate is the horizontal coordinate of described mechanical zero.
Further, after hoistable platform and workbench drop to reference position, nozzle moves to directly over calibration testing block, workbench is slightly done to decline after rising to touching nozzle, obtain the top side location of calibration testing block, record the height coordinate of now nozzle, in conjunction with described horizontal coordinate, obtain the three-dimensional coordinate of mechanical zero.
Wherein, the adjusting nut that described adjusting part comprises the bolt being fixed on workbench, the adjustment spring being set in bolt and is spirally connected with bolt, described workbench offers through hole, and described bolt is through this through hole, and the two ends of adjustment spring abut with hoistable platform and workbench respectively.
Wherein, described adjusting part is three or four.
Wherein, described workbench offers the vacuum sucking holes being distributed in workbench upper surface, workbench is also equiped with the gas-tpe fitting being convenient to be connected with vacuum-pumping equipment, and vacuum sucking holes is communicated with described gas-tpe fitting.
Wherein, described vacuum sucking holes is at least 12, and vacuum sucking holes is uniformly distributed in the upper surface of workbench.
Wherein, described gas-tpe fitting is positioned at the side of workbench.
Beneficial effect of the present invention is: the adjusting process that the invention provides a kind of molding flat and nozzle plane of motion, before 3D print job, described calibration testing block is used for the calibration location between nozzle and workbench, after the check and correction accurately of the position of nozzle and the position of calibration testing block, record three-dimensional location data now, namely the mechanical zero of workbench is set as, be convenient to provide at the particular location of workbench printing workpiece arrange reference, when avoiding printing, the position of workpiece exceeds the moving range of nozzle and causes the problem that workpiece cannot print, improve the qualification rate that workpiece prints.By namely can regulate the depth of parallelism between workbench and the plane of motion of nozzle to the debugging of adjusting part, the spacing of the plane of motion of workbench and nozzle can be regulated again, two adjustment objects only need a calibration procedures to realize, there is structure simple, advantage easy to adjust, practical.
Accompanying drawing explanation
Fig. 1 is perspective view of the present invention.
Fig. 2 is the right TV structure schematic diagram of the present invention.
Fig. 3 is the close-up schematic view of part A in Fig. 1.
Fig. 4 is the close-up schematic view of part B in Fig. 2.
Detailed description of the invention
For the ease of the understanding of those skilled in the art, below in conjunction with embodiment and accompanying drawing, the present invention is further illustrated, and the content that embodiment is mentioned not is limitation of the invention.
As shown in Figures 1 to 4, the adjusting process of a kind of molding flat and nozzle 11 plane of motion, 3D printer comprises hoistable platform 1 and workbench 2, described hoistable platform 1 is equiped with at least three adjusting parts 3, workbench is fixedly connected with adjusting part 3, the edge of workbench 2 is equiped with calibration testing block 9, and alignment step comprises:
A, hoistable platform 1 and workbench 2 drop to reference position;
B, determine the mechanical zero of nozzle 11;
C, by directly over nozzle 11 successively mobile each adjusting part, hoistable platform 1 and workbench 2 return after rising to touching nozzle 11 nozzle and drop to reference position, and the rising value obtained when each touching of record detects;
D, calculate difference between each rising value, according to this difference, adjusted the height at each position of workbench 2 by adjusting part described in adjustment, reduce above-mentioned difference;
E, repetition above-mentioned steps C and step D, until above-mentioned difference is zero.
Before 3D print job, described calibration testing block 9 is located for the calibration between nozzle 11 and workbench 2, after the check and correction accurately of the position of nozzle 11 and the position of calibration testing block 9, record three-dimensional location data now, namely the mechanical zero of workbench 2 is set as, be convenient to provide at the particular location of workbench 2 printing workpiece arrange reference, when avoiding printing, the position of workpiece exceeds the moving range of nozzle 11 and causes the problem that workpiece cannot print, and improves the qualification rate that workpiece prints.By namely can regulate the depth of parallelism between workbench 2 and the plane of motion of nozzle to the debugging of adjusting part 3, the spacing of the plane of motion of workbench 2 and nozzle can be regulated again, two adjustment objects only need a calibration procedures to realize, there is structure simple, advantage easy to adjust, practical.
In this enforcement, described calibration testing block 9 comprises two mutual vertical bar blocks 10 connected vertically, and this vertical bar block 10 is fixedly connected with the right angle portion of described workbench 2; In stepb, when determining the horizontal coordinate of mechanical zero, nozzle 11 is touched twice at the outer wall diverse location of a vertical bar block 10, obtain the horizontal coordinate of two touch points, and the linear equation of these two touch points is obtained by Computing, nozzle 11 is touched twice at the outer wall diverse location of another vertical bar block 10 again, obtain the horizontal coordinate of two touch points, same another linear equation being obtained these two touch points by Computing, finally by the coordinate calculating two straight-line intersections, this coordinate is the horizontal coordinate of described mechanical zero.
In the present embodiment, after hoistable platform 1 and workbench 2 drop to reference position, nozzle 11 moves to directly over calibration testing block 9, and workbench 2 is slightly done to decline after rising to touching nozzle, obtains the top side location of calibration testing block 9, record the height coordinate of now nozzle 11, in conjunction with described horizontal coordinate, obtain the three-dimensional coordinate of mechanical zero, calibration operation is simple and convenient, the user of mechanical processing experience also can Fast Learning and application, and practicality is stronger.
In the present embodiment, the adjusting nut 6 that described adjusting part 3 comprises the bolt 4 being fixed on workbench 2, the adjustment spring 5 being set in bolt 4 and is spirally connected with bolt 4, described workbench 2 offers through hole, described bolt 4 is through this through hole, and the two ends of adjustment spring 5 abut with hoistable platform 1 and workbench 2 respectively.
See Fig. 4, before the 3D of reality prints, need to carry out accurate calibration to the position of workbench 2, by rotating adjusting nut 6, the fixed position of workbench 2 on bolt 4 can be regulated, adjusted in concert four adjusting parts 3, can regulate up or down by workbench 2 entirety, and then reach the object of adjustment workbench 2 and the spacing of the plane of motion of nozzle; When regulating the nut of single adjusting part 3, can regulate the depth of parallelism between workbench 2 and the plane of motion of nozzle, what make between the two is parallel more accurate, greatly improves the printing shaping precision of 3D printer, rate of reducing the number of rejects and seconds.
Owing to adjusting the effect of spring 5, the appropriate section of workbench 2 abuts with adjusting nut 6 all the time, and when rotating adjusting nut 6, the appropriate section of workbench 2 can move up and down, thus be convenient to the parastate of Real Time Observation workbench 2 in the process of adjusting nut 6, convenient adjustment.
Certainly, the adjusting part 3 that described hoistable platform 1 is installed can also be three, utilize not on the same line 3 can determine the principle of a plane, three adjusting parts 3 can determine height and the position of workbench 2 equally, equally also can reach above-mentioned technique effect, structure is simpler, and it is more convenient to regulate.
In the present embodiment, described workbench 2 offers the vacuum sucking holes 7 being distributed in workbench 2 upper surface, workbench 2 is also equiped with the gas-tpe fitting 8 being convenient to be connected with vacuum-pumping equipment, and vacuum sucking holes 7 is communicated with described gas-tpe fitting 8.Vacuum-pumping equipment operationally, vacuum sucking holes 7 is in vacuum suction state, 3D printer print finished piece(s) the most the lower layer of after, due to the aspiration effect of vacuum sucking holes 7, this Rotating fields is adsorbed on the upper surface of workbench 2, thus effectively prevents the structure sheaf printed from deforming, and improves the formed precision printing workpiece further, structure is simple, practical.
In the present embodiment, described vacuum sucking holes 7 is at least 12, and vacuum sucking holes 7 is uniformly distributed in the upper surface of workbench 2.Concrete, described gas-tpe fitting 8 is positioned at the side of workbench 2, is convenient to for printhead vacates more mobile space, and to prevent printhead from moving horizontally in process, gas-tpe fitting 8 and printhead collide and damage equipment.
Above-described embodiment is the present invention's preferably implementation, and in addition, the present invention can also realize by alternate manner, and under the prerequisite not departing from the technical program design, any apparent replacement is all within protection scope of the present invention.
Claims (8)
1. the adjusting process of molding flat and nozzle plane of motion, 3D printer comprises hoistable platform (1) and workbench (2), it is characterized in that: described hoistable platform (1) is equiped with at least three adjusting parts (3), workbench is fixedly connected with adjusting part (3), the edge of workbench (2) is equiped with calibration testing block (9), and alignment step comprises:
A, hoistable platform (1) and workbench (2) drop to reference position;
B, determine the mechanical zero of nozzle (11);
C, by directly over nozzle (11) successively mobile each adjusting part, hoistable platform (1) and workbench (2) rise to touching nozzle (11) and return afterwards and drop to reference position, and the rising value obtained when each touching of record detects;
D, calculate difference between each rising value, according to this difference, adjusted the height at workbench (2) each position by adjusting part described in adjustment, reduce above-mentioned difference;
E, repetition above-mentioned steps C and step D, until above-mentioned difference is zero.
2. the adjusting process of molding flat according to claim 1 and nozzle plane of motion, it is characterized in that: described calibration testing block (9) comprises two mutual vertical bar blocks (10) connected vertically, and this vertical bar block (10) is fixedly connected with the right angle portion of described workbench (2);
In stepb, when determining the horizontal coordinate of mechanical zero, nozzle (11) is touched twice at the outer wall diverse location of a vertical bar block (10), obtain the horizontal coordinate of two touch points, and the linear equation of these two touch points is obtained by computing, nozzle (11) is touched twice at the outer wall diverse location of another vertical bar block (10) again, obtain the horizontal coordinate of two touch points, same another linear equation being obtained these two touch points by computing, the coordinate of two straight-line intersections is drawn finally by computing, this coordinate is the horizontal coordinate of described mechanical zero.
3. the adjusting process of molding flat according to claim 2 and nozzle plane of motion, it is characterized in that: after hoistable platform (1) and workbench (2) drop to reference position, nozzle (11) moves to directly over calibration testing block (9), workbench (2) is slightly done to decline after rising to touching nozzle, obtain the top side location of calibration testing block (9), record the height coordinate of now nozzle (11), in conjunction with described horizontal coordinate, obtain the three-dimensional coordinate of mechanical zero.
4. the adjusting process of molding flat according to claim 1 and nozzle plane of motion, it is characterized in that: the adjusting nut (6) that described adjusting part (3) comprises the bolt (4) being fixed on workbench (2), the adjustment spring (5) being set in bolt (4) and is spirally connected with bolt (4), described workbench (2) offers through hole, described bolt (4) is through this through hole, and the two ends of adjustment spring (5) abut with hoistable platform (1) and workbench (2) respectively.
5. the adjusting process of molding flat according to claim 1 and nozzle plane of motion, is characterized in that: described adjusting part (3) is three or four.
6. the adjusting process of molding flat according to claim 1 and nozzle plane of motion, it is characterized in that: described workbench (2) offers the vacuum sucking holes (7) being distributed in workbench (2) upper surface, workbench (2) is also equiped with the gas-tpe fitting (8) being convenient to be connected with vacuum-pumping equipment, and vacuum sucking holes (7) is communicated with described gas-tpe fitting (8).
7. the adjusting process of molding flat according to claim 6 and nozzle plane of motion, is characterized in that: described vacuum sucking holes (7) is at least 12, and vacuum sucking holes (7) is uniformly distributed in the upper surface of workbench (2).
8. the adjusting process of molding flat according to claim 6 and nozzle plane of motion, is characterized in that: described gas-tpe fitting (8) is positioned at the side of workbench (2).
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| CN201310487335.6A CN103552243B (en) | 2013-10-17 | 2013-10-17 | The adjusting process of molding flat and nozzle plane of motion |
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| CN201310487335.6A CN103552243B (en) | 2013-10-17 | 2013-10-17 | The adjusting process of molding flat and nozzle plane of motion |
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| CN103552243A CN103552243A (en) | 2014-02-05 |
| CN103552243B true CN103552243B (en) | 2015-12-23 |
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Families Citing this family (14)
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| KR101682601B1 (en) * | 2014-04-02 | 2017-01-24 | 주식회사 쓰리디스퀘어 | Apparatus and method for automatic adjustment for balanced print bed in 3D printer |
| CN104044273B (en) * | 2014-06-26 | 2017-05-03 | 珠海天威飞马打印耗材有限公司 | Calibration method and device of three-dimensional printer |
| US9895872B2 (en) | 2014-07-31 | 2018-02-20 | Xyzprinting, Inc. | Three-dimensional printing apparatus |
| CN105313330B (en) * | 2014-07-31 | 2018-05-15 | 三纬国际立体列印科技股份有限公司 | Three-dimensional printing device |
| CN105500699A (en) * | 2014-09-22 | 2016-04-20 | 三纬国际立体列印科技股份有限公司 | Three-dimensional tabulating machine horizontal correction mechanism |
| WO2016050321A1 (en) | 2014-10-03 | 2016-04-07 | Hewlett-Packard Development Company, L.P. | Generating a three-dimensional object |
| CN105365218B (en) * | 2015-11-18 | 2017-11-03 | 宁波市鄞州智造数字科技有限公司 | DLP photocuring 3D printer resin storage tanks |
| CN105619824A (en) * | 2016-04-08 | 2016-06-01 | 哈尔滨鼎智瑞光科技有限公司 | Printing adjusting device for 3D printer |
| CN106769146B (en) * | 2016-12-26 | 2023-09-19 | 东莞市敏通三防化工科技有限公司 | Three-proofing paint coating precision detection plate and detection method thereof |
| JP6900920B2 (en) * | 2018-02-20 | 2021-07-07 | 新東工業株式会社 | Stage mechanism, additional manufacturing equipment and additional manufacturing method |
| CN111267340B (en) | 2020-02-28 | 2020-10-27 | 上海复志信息技术有限公司 | Nozzle calibration method and system of double-nozzle 3D printer |
| CN111267339B (en) | 2020-02-28 | 2020-09-29 | 上海复志信息技术有限公司 | Method for adjusting height of nozzle of 3D printer |
| CN113665098B (en) * | 2021-07-12 | 2023-03-10 | 深圳市纵维立方科技有限公司 | 3D printing equipment, control method thereof and computer readable storage medium |
| CN117774309A (en) * | 2022-09-21 | 2024-03-29 | 深圳市纵维立方科技有限公司 | Touch device, contact pin, three-dimensional forming equipment and printing control method |
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| WO2004024447A2 (en) * | 2002-09-12 | 2004-03-25 | Objet Geometries Ltd. | Device, system and method for calibration in three-dimensional model printing |
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| WO2004024447A2 (en) * | 2002-09-12 | 2004-03-25 | Objet Geometries Ltd. | Device, system and method for calibration in three-dimensional model printing |
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Inventor after: Huang Xiangfeng Inventor after: Yang Shuangbao Inventor after: Wu Fengli Inventor before: Huang Xiangfeng Inventor before: Yang Shuangbao Inventor before: Wu Fengli |
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Address after: Xintang village Dalingshan Town 523822 Guangdong city of Dongguan province Xintang New Road No. 90 Applicant after: Guangdong Tuosipuda Machinery Technology Co., Ltd. Address before: Xintang village Dalingshan Town 523822 Guangdong city of Dongguan province Xintang New Road No. 90 Applicant before: Dongguan Top-star Machinery Technology Co., Ltd. |
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