CN104385590B - A kind of method that 3 D-printing system carries out product self-inspection - Google Patents
A kind of method that 3 D-printing system carries out product self-inspection Download PDFInfo
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- CN104385590B CN104385590B CN201410531036.2A CN201410531036A CN104385590B CN 104385590 B CN104385590 B CN 104385590B CN 201410531036 A CN201410531036 A CN 201410531036A CN 104385590 B CN104385590 B CN 104385590B
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- 238000007639 printing Methods 0.000 title claims abstract description 40
- 238000000034 method Methods 0.000 title claims abstract description 24
- 238000007689 inspection Methods 0.000 title claims abstract description 12
- 238000005516 engineering process Methods 0.000 description 10
- 238000010146 3D printing Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000007493 shaping process Methods 0.000 description 3
- 210000004556 brain Anatomy 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 210000004394 hip joint Anatomy 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000013178 mathematical model Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
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Abstract
The present invention proposes a kind of method that 3 D-printing system carries out product self-inspection, specifically includes following steps：S1, the preset model figure in 3 D-printing system；S2, a model reference point and multiple model characteristic point are chosen in model figure, calculate the coordinate of each model characteristic point as origin with model reference point；S3, according to model graphic printing workpiece；S4, workpiece is scanned, workpiece figure is generated according to scan data；S5, reference model reference point and multiple model characteristic point selection standards, select corresponding work piece reference point and multiple workpiece features points in workpiece figure；S6, the coordinate for calculating each workpiece features point as origin with work piece reference point；S7, by the coordinate of each workpiece features point and corresponding model characteristic point coordinate pair ratio, if result is consistent, then it represents that workpiece is qualified；If result is inconsistent, then it represents that workpiece is unqualified.The method that a kind of 3 D-printing system proposed by the present invention carries out product self-inspection, speed is fast, high precision.
Description
Technical field
The side of product self-inspection is carried out the present invention relates to three-dimensional printing technology field, more particularly to a kind of 3 D-printing system
Method.
Background technology
3 D-printing is also referred to as 3D printing (Three Dimensions Printing), belongs to one kind of RP technique.
It is one kind based on mathematical model file, with powdery metal or plastics etc. can jointing material, by what is successively printed
Mode carrys out the technology of constructed object.Past, it was often used for modeling in fields such as Making mold, industrial designs, now just gradually
For the direct manufacture of some products, particularly some high-value products (such as hip joint or tooth, or airplane component)
Through there is the parts printed using this technology.3 D-printing is typically with digital technology file printing machine to realize,
Because three-dimensional printing technology is complex, in print procedure, any tiny deviation occurs, and may all cause going out for defect ware
It is existing.
Existing 3 D-printing system is in control module preset model figure and carries out layered shaping generation hierarchical diagram, controls mould
Root tuber is printed according to hierarchical diagram control printing head.Speed using three-dimensional printing technology production product is very fast and past
It is also more fine toward the product using three-dimensional printing technology printing, this result in it is thin to the big work of detection limit of such product, it is time-consuming
Effort.
The content of the invention
Based on the technical problem that background technology is present, the present invention proposes a kind of 3 D-printing system carries out product self-inspection
Method, speed is fast, high precision.
The method that a kind of 3 D-printing system proposed by the present invention carries out product self-inspection, according to preset model figure and basis
After model graphic printing workpiece, workpiece is scanned, and actual graphical is generated according to scan data, by actual graphical and model
Graphic correlation, judges whether workpiece is qualified, and methods described specifically includes following steps：
S1, the preset model figure in 3 D-printing system；
S2, a model reference point and multiple model characteristic point are chosen in model figure, counted by origin of model reference point
Calculate the coordinate of each model characteristic point；
S3, according to model graphic printing workpiece；
S4, workpiece is scanned, workpiece figure is generated according to scan data；
S5, reference model reference point and multiple model characteristic point selection standards, select corresponding workpiece in workpiece figure
Reference point and multiple workpiece features points；
S6, the coordinate for calculating each workpiece features point as origin with work piece reference point；
S7, by the coordinate of each workpiece features point and corresponding model characteristic point coordinate pair ratio, if result is consistent, then it represents that
Workpiece is qualified；If result is inconsistent, then it represents that workpiece is unqualified.
Preferably, model reference point is the central point of model figure, and work piece reference point is the central point of workpiece figure.
Preferably, the central point with model figure does outside the first model on vertical plane to model figure respectively as the center of circle
The second model circumscribed circle on circle and horizontal plane is connect, model pattern bit is on the first model circumscribed circle and the second model circumscribed circle
Point is model characteristic point；Central point with workpiece figure does outside the first workpiece on vertical plane as the center of circle, respectively to workpiece figure
The second workpiece circumscribed circle on circle and horizontal plane is connect, workpiece figure is located on the first workpiece circumscribed circle and second workpiece circumscribed circle
Point is workpiece features point.
Preferably, multiple model characteristic points include peak, the minimum point of model figure, and workpiece features point includes workpiece figure
The peak of shape, minimum point.
The 3 D-printing system that the present invention is provided carries out the method for product self-inspection by that will print the scanning figure and mould of workpiece
Type figure is contrasted, and judges whether workpiece is qualified, it is only necessary to which a scanner is set up in 3 D-printing system just can be realized, low cost
It is honest and clean, it is convenient and swift.
In the present invention, scanning figure is judged than by way of coordinate pair, i.e., respectively to workpiece figure and illustraton of model
Shape chooses reference point and characteristic point, relative coordinate of the characteristic point relative to reference point is then calculated, then by model characteristic point
Relative coordinate is compared and carries out interpretation one by one with the relative coordinate of workpiece features point, and operation is simple, and accuracy is high, is conducive to improving work
Make efficiency.Additionally, the selection flexibility of characteristic point and reference point is good, be conducive to being configured according to different workpiece, expand this
The invention scope of application.
Brief description of the drawings
Fig. 1 is the flow chart of the method that a kind of 3 D-printing system proposed by the present invention carries out product self-inspection.
Specific embodiment
Used as one kind application of rapid shaping technique, it is high-precision that 3 D-printing system has been widely applied to industrial production etc.
In degree work piece production industry.The present invention is entered by setting up workpiece of the scanner to printing in existing 3 D-printing system
Row scanning judges whether it is qualified, and printed product is screened in time, it is to avoid defective work flows into next operation.
Reference picture 1, the method that a kind of 3 D-printing system proposed by the present invention carries out product self-inspection, according to preset model figure
Shape and according to model graphic printing workpiece after, workpiece is scanned, and according to scan data generate actual graphical, by actual figure
Shape and model graphic correlation, judge whether workpiece is qualified, and methods described specifically includes following steps：
S1, the preset model figure in 3 D-printing system.
Existing 3 D-printing system must include control process module and printing head, and control process module is used as three-dimensional
The key that print system is automatically controlled, equivalent to the brains of 3 D-printing system, and shower nozzle is then equivalent to 3 D-printing system
Executor.Model figure is just arranged in control process module, and the work such as analytical calculation in following steps is also by control
Reason module is completed.
S2, a model reference point and multiple model characteristic point are chosen in model figure, counted by origin of model reference point
Calculate the coordinate of each model characteristic point.
It is model reference point with the central point of model figure in present embodiment；Central point with model figure as the center of circle,
The second model circumscribed circle on the first model circumscribed circle and the horizontal plane on vertical plane, model pattern bit are done to model figure respectively
In the point on the first model circumscribed circle and the second model circumscribed circle be model characteristic point；Additionally, model characteristic point also includes model
The peak of figure, minimum point.
S3, according to model graphic printing workpiece.
Specifically, the control process module in 3 D-printing system is carried out after layered shaping according to hierarchical diagram to model figure
Control printing head prints workpiece in the way of accumulating layer by layer.
S4, workpiece is scanned, workpiece figure is generated according to scan data.
In the step, start the scanner set up in 3 D scanning system and workpiece is scanned and scan data is sent
To control process module, control process module is according to scan data generation workpiece figure.
S5, reference model reference point and multiple model characteristic point selection standards, select corresponding workpiece in workpiece figure
Reference point and multiple workpiece features points.
Specifically, it is work piece reference point with the central point of workpiece figure；Central point with workpiece figure is right respectively as the center of circle
Workpiece figure does the second workpiece circumscribed circle on the first workpiece circumscribed circle and horizontal plane on vertical plane, and workpiece figure is located at first
Point on workpiece circumscribed circle and second workpiece circumscribed circle is workpiece features point；Additionally, workpiece features point also includes workpiece figure
Peak, minimum point.
S6, the coordinate for calculating each workpiece features point as origin with work piece reference point.
S7, by the coordinate of each workpiece features point and corresponding model characteristic point coordinate pair ratio, if result is consistent, then it represents that
Workpiece is qualified；If result is inconsistent, then it represents that workpiece is unqualified.
In the case where workpiece is qualified, workpiece figure should be consistent with model figure, i.e., the coordinate of workpiece features point with it is corresponding
Aspect of model point coordinates it is identical.
The above, the only present invention preferably specific embodiment, but protection scope of the present invention is not limited thereto,
Any one skilled in the art the invention discloses technical scope in, technology according to the present invention scheme and its
Inventive concept is subject to equivalent or change, should all be included within the scope of the present invention.
Claims (2)
1. a kind of method that 3 D-printing system carries out product self-inspection, it is characterised in that according to preset model figure and according to mould
After type graphic printing workpiece, workpiece is scanned, and actual graphical is generated according to scan data, by actual graphical and illustraton of model
Shape is contrasted, and judges whether workpiece is qualified, and methods described specifically includes following steps：
S1, the preset model figure in 3 D-printing system；
S2, a model reference point and multiple model characteristic point are chosen in model figure, be that origin is calculated respectively with model reference point
The coordinate of individual model characteristic point；
S3, according to model graphic printing workpiece；
S4, workpiece is scanned, workpiece figure is generated according to scan data；
S5, reference model reference point and multiple model characteristic point selection standards, select corresponding work piece reference in workpiece figure
Point and multiple workpiece features points；
S6, the coordinate for calculating each workpiece features point as origin with work piece reference point；
S7, by the coordinate of each workpiece features point and corresponding model characteristic point coordinate pair ratio, if result is consistent, then it represents that workpiece
It is qualified；If result is inconsistent, then it represents that workpiece is unqualified；
Wherein, model reference point is the central point of model figure, and work piece reference point is the central point of workpiece figure；
Central point with model figure does the first model circumscribed circle and horizontal plane on vertical plane as the center of circle, respectively to model figure
On the second model circumscribed circle, model pattern bit in the point on the first model circumscribed circle and the second model circumscribed circle be the aspect of model
Point；Central point with workpiece figure does the first workpiece circumscribed circle and horizontal plane on vertical plane as the center of circle, respectively to workpiece figure
On second workpiece circumscribed circle, workpiece figure be located at the first workpiece circumscribed circle and second workpiece circumscribed circle on point be workpiece features
Point.
2. the method that 3 D-printing system as claimed in claim 1 carries out product self-inspection, it is characterised in that multiple aspects of model
Point includes peak, the minimum point of model figure, and workpiece features point includes peak, the minimum point of workpiece figure.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2016166337A1 (en) * | 2015-04-17 | 2016-10-20 | Eos Gmbh Electro Optical Systems | Method and control command generation unit for automatic generation of control commands of a generative layer construction device |
| CN106270501B (en) * | 2016-08-30 | 2018-05-15 | 西安铂力特增材技术股份有限公司 | A kind of 3D printing cross-sections match method, combined shaping method and section restorative procedure |
| CN107020230A (en) * | 2017-04-19 | 2017-08-08 | 天长市金陵电子有限责任公司 | A kind of ray cast type electrostatic spraying restorative procedure |
| CN107081251A (en) * | 2017-04-19 | 2017-08-22 | 天长市金陵电子有限责任公司 | A kind of electrostatic powder coating repaiies damage method |
| CN107225075A (en) * | 2017-04-19 | 2017-10-03 | 天长市金陵电子有限责任公司 | A kind of electrostatic powder coating restorative procedure based on three-dimensional modeling |
| DE102018109816B3 (en) * | 2018-04-24 | 2019-10-24 | Yxlon International Gmbh | A method for obtaining at least one significant feature in a series of components of the same type and method for classifying a component of such a series |
| EP3749505B1 (en) * | 2018-04-26 | 2022-12-14 | Hewlett-Packard Development Company, L.P. | Printing production quality prediction |
| CN110271001A (en) * | 2019-06-19 | 2019-09-24 | 北京微链道爱科技有限公司 | Robot recognition methods, control method, device, storage medium and main control device |
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Effective date of registration: 20191101 Address after: 244000 Zhongtian Electrical Appliances Co., Ltd. in Datong Industrial and Trade Park, Tongling Suburb Bridge Economic Development Zone, Anhui Province Patentee after: ANHUI ZHONGTIAN ELECTRIC APPLIANCE Co.,Ltd. Address before: 230000 Hefei National University Science Park, 602 Mount Huangshan Road, Hefei hi tech Zone, Anhui, B501 Patentee before: HEFEI SKE INTELLIGENT TECHNOLOGY Co.,Ltd. |
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