CN104325646A - Numerical control locating system IV of three-dimensional (3D) printer - Google Patents
Numerical control locating system IV of three-dimensional (3D) printer Download PDFInfo
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- CN104325646A CN104325646A CN201410713624.8A CN201410713624A CN104325646A CN 104325646 A CN104325646 A CN 104325646A CN 201410713624 A CN201410713624 A CN 201410713624A CN 104325646 A CN104325646 A CN 104325646A
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- rocking arm
- axis
- numerical control
- printer
- workbench
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Abstract
The invention relates to a numerical control locating system IV of a three-dimensional (3D) printer, belonging to the technical field of numerical control locating systems of 3D printers, and aiming at simplifying the structure of the numerical control locating system at the X axis and Y axis of the 3D printer and eliminating the influence of abrasion of a sliding guide rail to the printing accuracy. The numerical control locating system is realized by the technical measure as follows: a working table driving motor 10 is fixedly arranged at one end of a rocker arm 9, and a thread bushing 11 is movably arranged at one end of the rocker arm 9; a rotating shaft of the working table driving motor 10 is provided with a working table 2; the working table driving motor 10 is controlled to drive the working table 2 to rotate by a computer; the other end of the rocker arm 9 is articulated on a bracket 1 or movably arranged on a guide rail 6 at the Z axis; a rocker arm driving motor 14 is arranged on the bracket 1 by a spring piece 12 and a motor bracket 13; a rotating shaft of the rocker arm driving motor 14 is provided with a screw rod 15 and the like. The numerical control locating system has the advantage that the straight line sliding of the guide rail is replaced by the rotation which is small in abrasion and high in locating accuracy, so that the adverse effect caused by sliding abrasion of the guide rail can be eliminated.
Description
Technical field
The invention belongs to a technical field of 3D printer numerical control positioning system.
Background technology
Commercially available general hot melt piles up class 3D printer, because structure is relatively simple, and reasons such as consumptive material is inexpensive and develop very fast.Hot melt is piled up class 3D printer and has mainly been used the forming techniques such as hot melt accumulation, makes 3-D view virtual on computer become the three-dimensional model of reality.The 3D printer of this class primarily of X-axis, Y-axis and Z axis, the compositions such as three-axis numerical control navigation system, control circuit and shower nozzle.The digital slices print data that three-axis numerical control navigation system produces according to Slice Software and instruction, constantly change the horizontal level between nozzle and model or workbench and relative altitude, coordinate the action of shower nozzle just can realize the stack shaping of hot melt material.In this process, the motion of X-axis and Y-axis numerical control positioning system is the most frequent, and amount of exercise is also maximum, and it is also maximum on the impact of printing precision simultaneously.So it is most important component part in 3D printer.
But, in the three-axis numerical control navigation system of this kind of 3D printer under prior art, use be all linear motion guide.In 3D print procedure, X-axis and the continuous interoperation of Y-axis, each bar curve in ability formation model or straight line.That is, each bar curve in 3D print procedure or the generation of straight line, all wanting to produce sliding friction between guide rail and slide unit could realize.Those skilled in the art knows, rail plate is not only very harsh to the requirement of the material of part, machining accuracy and installation accuracy, and the most headachy be that it in use can produce serious friction wear, this wearing and tearing are that its structure causes.Because the amplitude of its friction stroke is large, and each parts are all directly exposed in air, and this situation is made the matter worse.Under such working environment, the dust in the as easy as rolling off a log absorbed air of the lubricant on guide rail, so more accelerates the wearing and tearing of guide rail.Location and the repetitive positioning accuracy of what the effect of attrition of guide rail was maximum is three Shaft fixed position modules, it to show as the plane surface printed coarse.Time serious, the geometry of the model printed and size are also influenced.So the use of rail plate, remote-effects printing precision and shorten service life of 3D printer.On the other hand, in the process of Design and manufacture 3D printer, the length of rail plate must be greater than the impulse stroke of X-axis and Y-axis, so just requires that the support of supporting guide is larger stronger.It must cause making the complete machine structure of 3D printer very huge.And in the face of huge structure, for ensureing that rigidity has to again increase the thickness of component.Like this with regard to the weight of the complete machine that increases.
Summary of the invention
In order to the structure of the X-axis and Y-axis numerical control positioning system that simplify 3D printer, eliminate the impact of rail plate wearing and tearing on printing precision, extend the service life of 3D printer, this invention takes following technical measures: be installed with table drive motor 10 in one end of rocking arm 9 and be movably installed with thread bush 11, workbench 2 rotating shaft of table drive motor 10 is equipped with, table drive motor 10 can drive workbench 2 to rotate under control of the computer, the other end of rocking arm 9 is hinged on support 1 or is movably arranged on Z axis guide rail 6, rocking arm drive motors 14 is contained on support 1 by spring leaf 12 and electric machine support 13, screw rod 15 rotating shaft of rocking arm drive motors 14 is equipped with, screw rod 15 and thread bush 11 are threaded togather, rocking arm drive motors 14 is under control of the computer by screw rod 15, thread bush 11 drives rocking arm 9, table drive motor 10 swings (rotation) together with workbench 2, rocking arm 9 and support 1 are equipped with the reset of position sensor for workbench 2 and rocking arm 9, position sensor connects computer, table drive motor 10 is connected respective electric machine controller with rocking arm drive motors 14, and electric machine controller connects computer.
The benefit done like this is: when the present invention works 3D printer, the X-axis that motion is the most frequent, amount of exercise is maximum and the numerical control positioning system of Y-axis, by the numerical control positioning using rail plate mechanism to realize the horizontal plane of 3D printer, instead by rocking arm 9 with the yaw of workbench 2 and self rotating of workbench 2, realize the numerical control positioning of the horizontal plane of 3D printer.Little owing to present invention employs wearing and tearing, the rotation that positioning precision is high substitutes the linear slide (namely eliminating rail plate mechanism) of guide rail, eliminates slide and to wear and tear the harmful effect brought.Also greatly simplify structure simultaneously, improve positioning precision, reduce production cost and improve reliability, extending the service life of 3D printer.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention, and face figure is overlooked in front side.
Fig. 2 is structural representation of the present invention, trailing flank top view.
In figure: support 1, workbench 2, shower nozzle 3, consumptive material 4, head cartridge 5, Z axis guide rail 6, Z axis drive motors 7, Z axis screw rod 8, rocking arm 9, table drive motor 10, thread bush 11, spring leaf 12, electric machine support 13, rocking arm drive motors 14, screw rod 15.
Detailed description of the invention
Hot melt under prior art is piled up in three axles (X-axis, Y-axis, Z axis) the numerical control positioning system of class 3D printer, nearly all have employed linear motion guide.Technically, the length of line slideway is greater than impulse stroke, and must be mutually vertical between each guide rail.Therefore, the agent structure of this kind of 3D printer is mostly box, bulky and heavy.In 3D printer process, drive X-axis and drive the stepper motor of Y-axis continuous interoperation under control of the computer, each bar curve in formation model tomography or straight line, i.e. a section.Therefore their workload is large, weares and teares also serious.And Z axis only has floor height to have during increase just action, and its range is exactly the height of model.It prints a model and just to walk one stroke, so the wearing and tearing of Z axis are very little, it is relative with the impact in service life much smaller on the precision of 3D printer.Can suitably ignore.In the 3D printer course of work, the most frequent and amount of exercise of motion is maximum is X-axis and Y-axis.And in whole printer arrangement, in order to settle the rail plate of X-axis and Y-axis, often 3D printer to be made case structure.This just makes the structure of 3D printer more complicated, simultaneously for ensureing that rigidity has to greatly increase material thickness, the weight of 3D printer is increased greatly.So in the numerical control positioning system of 3D printer, replacing sliding rail structure has great meaning to 3D printer.
Embodiments of the invention: in order to the structure, the elimination rail plate that simplify the plane numerical controlled navigation system of existing 3D printer X-axis and Y-axis formation wore and tore on the impact of printing precision and the service life of prolongation 3D printer.The present invention mainly takes and utilizes the rotation of workbench and the horizontal pan of rocking arm, the rectilinear motion of both cooperatively interact alternative X-axis and Y-axis.Before the straight line of model digital slices or curve being presented in the nozzle face of shower nozzle, realizing 3D and print; Its concrete structure is: be installed with table drive motor 10 in one end of rocking arm 9 and be movably installed with thread bush 11, thread bush 11 is processed with internal thread.The rotating shaft of table drive motor 10 is provided with workbench 2.Table drive motor (motor described in the application is the stepper motor of stepper motor or band reducing gear) 10 can drive workbench 2 to rotate under control of the computer.The other end of rocking arm 9 is hinged on support 1 or is movably arranged on Z axis guide rail 6.Activity described here is installed and is referred to that rocking arm 9 can freely swing around Z axis guide rail 6 mounting structure of (rotation).Its effect is the same with hinged, is all rocking arm 9 can left and right horizontal be freely swung.Rocking arm drive motors 14 is arranged on support 1 by spring leaf 12 and electric machine support 13.This mounting structure is the gap in order to reduce system, and spring leaf 13 allows rocking arm drive motors 14 both sides to swing, and does not but allow rocking arm drive motors 14 to move forward and backward, just in time meets requirement here.The rotating shaft of rocking arm drive motors 14 is equipped with screw rod 15, screw rod 15 and thread bush 11 are threaded togather.When rocking arm drive motors 14 rotates under control of the computer, drive horizontal hunting together with rocking arm 9, workbench 2 etc. by screw rod 15 with thread bush 11.Such workbench 2 is both swingable also can rotate simultaneously, both under control of the computer routing motion just can complete various straight line or curvilinear path under shower nozzle.Realize the accurate numerical control positioning of X-axis and Y-axis.Table drive motor 10, rocking arm drive motors 14 connect respective electric machine controller, and electric machine controller connects computer, and rocking arm 9 and support 1 are provided with the reset of reseting sensor for workbench 2 and rocking arm 9, reseting sensor connects computer.
The course of work of the present invention is: start working after user opens 3D printer power supply computer-chronograph system reset.And then computer is by electric machine controller instruction works platform drive motors 10, drives workbench 2 to rotate to the direction of the microswitch be contained on rocking arm 9 or reseting sensor.When a specified point of workbench 2 touch be contained in microswitch on rocking arm or reseting sensor time, microswitch or reseting sensor send to computer the signal that workbench 2 puts in place.Send halt instruction to table drive motor 10 after computer receives this signal, workbench 2 just stops on the position of the starting point of work, and workbench 2 resets successfully.And then computer is by another electric machine controller instruction rocking arm drive motors 14, drives rocking arm 9, workbench 2 etc. to swing (rotation) to the microswitch be contained on support 1 or reseting sensor direction together by screw rod 15, thread bush 11.When the specified point on rocking arm 9 touches microswitch or reseting sensor, microswitch or reseting sensor send to computer the signal that rocking arm 9 puts in place.After computer receives this signal, send halt instruction to rocking arm drive motors 14, rocking arm 9 stops on the position of work starting point with workbench 2, and rocking arm 9 resets successfully.System-wide reset result is the nozzle of the work starting point alignment shower nozzle 3 making setting on workbench 2, and the nozzle of shower nozzle 3 has suitable height apart from workbench 2.After total system has resetted, computer just according to the model slice data of user's input, can drive table drive motor 10, rocking arm drive motors 14 interoperation by electric machine controller, and what complete X-axis and Y direction moves horizontally location tasks.
After 3D printer has printed one deck section, computer will have been driven by motor controller controls Z axis motor 7, Z axis screw rod 8 and has been contained on Z axis guide rail 6 and rises with the head cartridge 5 that Z axis screw rod 8 is threaded togather, and prepares for printing next section.Circulation like this is printable complete model just.
Claims (1)
1.3D printer numerical control positioning system four, mainly comprise support (1), workbench (2), rocking arm (9), table drive motor (10), thread bush (11), spring leaf (12), electric machine support (13), rocking arm drive motors (14), screw rod (15), it is characterized in that: be installed with table drive motor (10) in one end of rocking arm (9) and be movably installed with thread bush (11), workbench (2) rotating shaft of table drive motor (10) is equipped with, table drive motor (10) can drive workbench (2) to rotate under control of the computer, the other end of rocking arm (9) is hinged on support (1) or is movably arranged on Z axis guide rail (6), rocking arm drive motors (14) is contained on support (1) by spring leaf (12) and electric machine support (13), screw rod (15) rotating shaft of rocking arm drive motors (14) is equipped with, screw rod (15) and thread bush (11) are threaded togather, rocking arm drive motors (14) is under control of the computer by screw rod (15), thread bush (11) drives rocking arm (9), table drive motor (10) and workbench (2) swing (rotation) together, rocking arm (9) and support (1) are equipped with the reset of position sensor for workbench (2) and rocking arm (9), position sensor connects computer, table drive motor (10) is connected respective electric machine controller with rocking arm drive motors (14), and electric machine controller connects computer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410713624.8A CN104325646B (en) | 2014-11-29 | 2014-11-29 | Numerical control locating system of three-dimensional (3D) printer |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410713624.8A CN104325646B (en) | 2014-11-29 | 2014-11-29 | Numerical control locating system of three-dimensional (3D) printer |
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| Publication Number | Publication Date |
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| CN104325646A true CN104325646A (en) | 2015-02-04 |
| CN104325646B CN104325646B (en) | 2017-02-22 |
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| CN201410713624.8A Active CN104325646B (en) | 2014-11-29 | 2014-11-29 | Numerical control locating system of three-dimensional (3D) printer |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113071101A (en) * | 2020-01-03 | 2021-07-06 | 通用汽车环球科技运作有限责任公司 | Configurable build volume system |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2401312Y (en) * | 1999-09-21 | 2000-10-18 | 联星科技股份有限公司 | Precision rotary positioning mechanism |
| CN203156377U (en) * | 2013-01-23 | 2013-08-28 | 陈东方 | Double-polar-axis three-dimensional machining tool |
-
2014
- 2014-11-29 CN CN201410713624.8A patent/CN104325646B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2401312Y (en) * | 1999-09-21 | 2000-10-18 | 联星科技股份有限公司 | Precision rotary positioning mechanism |
| CN203156377U (en) * | 2013-01-23 | 2013-08-28 | 陈东方 | Double-polar-axis three-dimensional machining tool |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113071101A (en) * | 2020-01-03 | 2021-07-06 | 通用汽车环球科技运作有限责任公司 | Configurable build volume system |
| CN113071101B (en) * | 2020-01-03 | 2023-07-18 | 通用汽车环球科技运作有限责任公司 | Configurable build volume system |
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| Publication number | Publication date |
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| CN104325646B (en) | 2017-02-22 |
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| C41 | Transfer of patent application or patent right or utility model | ||
| CB03 | Change of inventor or designer information |
Inventor after: Huang Wei Inventor after: Huang Zhigang Inventor after: Chen Jing Inventor after: Huang Zequn Inventor before: Hu Zhenbang Inventor before: Hu Daguang |
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| COR | Change of bibliographic data | ||
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Effective date of registration: 20170119 Address after: 210000 Jiangsu Province, Pukou District, North Bridge Road, No. 21, building 24, No. Applicant after: Huang Wei Address before: Guangdong province Dongguan City Wanjiang 523051 liuyongwei Fen Xi Lu Nan Yi Xiang No. 6 three Applicant before: Hu Daguang |
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Effective date of registration: 20170622 Address after: 401 building C, No.1 Industrial Zone, South Street, Bantian street, Longgang District, Guangdong, Shenzhen 518000, China Patentee after: Shenzhen giant shadow Investment Development Limited Address before: 210000 Jiangsu Province, Pukou District, North Bridge Road, No. 21, building 24, No. Patentee before: Huang Wei |