CN104385590A - Product self-inspection method of three dimensions printing system - Google Patents
Product self-inspection method of three dimensions printing system Download PDFInfo
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- CN104385590A CN104385590A CN201410531036.2A CN201410531036A CN104385590A CN 104385590 A CN104385590 A CN 104385590A CN 201410531036 A CN201410531036 A CN 201410531036A CN 104385590 A CN104385590 A CN 104385590A
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- 238000007639 printing Methods 0.000 title claims abstract description 35
- 238000000034 method Methods 0.000 title claims abstract description 21
- 238000007689 inspection Methods 0.000 title claims abstract description 15
- 239000003550 marker Substances 0.000 claims description 6
- 230000002950 deficient Effects 0.000 claims description 4
- 238000005516 engineering process Methods 0.000 description 9
- 238000010146 3D printing Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000007493 shaping process Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 2
- 240000004859 Gamochaeta purpurea Species 0.000 description 1
- 210000004556 brain Anatomy 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 230000007547 defect 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
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
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Abstract
The invention provides a product self-inspection method of a three dimensions printing system. The product self-inspection method comprises the following steps of S1, preseting a mold graph in a three dimensions printing system, S2, selecting a mold reference point and multiple mold feature points of the mold graph, and computing coordinates of the mold feature points by the mold reference point as an original point, S3, printing a workpiece according to the mold graph, S4, scanning the workpiece and producing a workpiece graph according to the scanning data, S5, selecting standards according to the mold reference point and the multiple mold feature points, and selecting a corresponding workpiece reference point and multiple workpiece feature points of the workpiece graph, S6, computing coordinates of the workpiece feature points based on the workpiece reference point as an original point, and S7, comparing the workpiece feature point coordinates and the corresponding mold feature point coordinates, wherein if the results are consistent, the workpiece is qualified or is unqualified, otherwise. The product self-inspection method of the three dimensions printing system has fast speed and high precision.
Description
Technical field
The present invention relates to three-dimensional printing technology field, particularly relate to a kind of method that 3 D-printing system carries out product self-inspection.
Background technology
3 D-printing also claims 3D to print (Three Dimensions Printing), belongs to the one of RP technique.It is a kind of based on mathematical model file, uses powdery metal or plastics etc. can jointing material, is carried out the technology of constructed object by the mode successively printed.Past, its field such as Making mold, industrial design of being everlasting was used to modeling, now just gradually for the direct manufacture of some products, particularly some high-value products (such as hip joint or tooth, or airplane component) have had the parts using this technology to print.3 D-printing normally adopts digital technology file printing machine to realize, and because three-dimensional printing technology is comparatively complicated, in print procedure, any tiny deviation occurs, all may cause the appearance of defect ware.
Existing 3 D-printing system at control module preset model figure and carry out layered shaping generate hierarchical diagram, control module according to hierarchical diagram control printing head print.Utilize three-dimensional printing technology to produce the speed of product quickly, and the product often utilizing three-dimensional printing technology to print is also more meticulous, this just causes the large work of the detection limit of this series products thin, takes time and effort.
Summary of the invention
Based on the technical problem that background technology exists, the present invention proposes a kind of method that 3 D-printing system carries out product self-inspection, speed is fast, and precision is high.
A kind of 3 D-printing system that the present invention proposes carries out the method for product self-inspection, according to preset model figure and according to after model figure marker part, workpiece is scanned, and generate actual graphical according to scan-data, by actual graphical and model graphic correlation, judge that whether workpiece is qualified, described method specifically comprises the following steps:
S1, in 3 D-printing system preset model figure;
S2, choose a model reference point and multiple model characteristic point at model figure, with model reference point for initial point calculates the coordinate of each model characteristic point;
S3, according to model figure marker part;
S4, workpiece to be scanned, generate workpiece figure according to scan-data;
S5, reference model reference point and multiple model characteristic point selection standard, select corresponding work piece reference point and multiple workpiece features point in workpiece figure;
S6, with the coordinate of work piece reference point each workpiece features point for initial point calculates;
S7, the coordinate of each workpiece features point to be contrasted with corresponding aspect of model point coordinates, if result is consistent, then represent that workpiece is qualified; If result is inconsistent, then represent that workpiece is defective.
Preferably, model reference point is the central point of model figure, and work piece reference point is the central point of workpiece figure.
Preferably, with the central point of model figure for the center of circle, do the first model circumscribed circle on vertical plane and the second model circumscribed circle on horizontal plane to model figure respectively, the point of illustraton of model morpheme on the first model circumscribed circle and the second model circumscribed circle is model characteristic point; With the central point of workpiece figure for the center of circle, do the first workpiece circumscribed circle on vertical plane and the second workpiece circumscribed circle on horizontal plane respectively to workpiece figure, the workpiece figure point be positioned on the first workpiece circumscribed circle and second workpiece circumscribed circle is workpiece features point.
Preferably, multiple model characteristic point comprises peak, the minimum point of model figure, and workpiece features point comprises peak, the minimum point of workpiece figure.
3 D-printing system provided by the invention carries out the method for product self-inspection by the scintigram and illustraton of model that print workpiece being contrasted, and judges that whether workpiece is qualified, only needs in 3 D-printing system, set up a scanner and just can realize, with low cost, convenient and swift.
In the present invention, the mode contrasted by coordinate is judged scintigram, namely respectively reference point and characteristic point are chosen to workpiece figure and model figure, then the relative coordinate of characteristic point relative to reference point is calculated, then by the relative coordinate of the relative coordinate of model characteristic point and workpiece features point one by one comparison carry out interpretation, operation is simple, and accuracy is high, is conducive to increasing work efficiency.In addition, characteristic point and reference point to choose flexibility good, be conducive to arranging according to different workpiece, expand the scope of application of the present invention.
Accompanying drawing explanation
Fig. 1 is the flow chart that a kind of 3 D-printing system that the present invention proposes carries out the method for product self-inspection.
Detailed description of the invention
One as rapid shaping technique is applied, and 3 D-printing system has been widely applied in the high accuracy work piece production industries such as industrial production.The present invention carries out scanning to the workpiece printed judge that whether it is qualified by setting up scanner in existing 3 D-printing system, screens in time, avoid defective work to flow into next operation to printed product.
With reference to Fig. 1, a kind of 3 D-printing system that the present invention proposes carries out the method for product self-inspection, according to preset model figure and according to after model figure marker part, workpiece is scanned, and generate actual graphical according to scan-data, by actual graphical and model graphic correlation, judge that whether workpiece is qualified, described method specifically comprises the following steps:
S1, in 3 D-printing system preset model figure.
Existing 3 D-printing system must comprise control treatment module and printing head, and the key that control treatment module controls automatically as 3 D-printing system is equivalent to the brains of 3 D-printing system, and shower nozzle is then equivalent to the executor of 3 D-printing system.Model figure is just arranged in control treatment module, and the work such as analytical calculation in following steps is also completed by control treatment module.
S2, choose a model reference point and multiple model characteristic point at model figure, with model reference point for initial point calculates the coordinate of each model characteristic point.
In present embodiment, with the central point of model figure for model reference point; With the central point of model figure for the center of circle, do the first model circumscribed circle on vertical plane and the second model circumscribed circle on horizontal plane respectively to model figure, the point of illustraton of model morpheme on the first model circumscribed circle and the second model circumscribed circle is model characteristic point; In addition, model characteristic point also comprises peak, the minimum point of model figure.
S3, according to model figure marker part.
Particularly, control printing head according to hierarchical diagram after the control treatment module in 3 D-printing system carries out layered shaping to model figure and print workpiece in the mode accumulated layer by layer.
S4, workpiece to be scanned, generate workpiece figure according to scan-data.
In this step, start the scanner set up in 3 D scanning system and scan workpiece and scan-data is sent to control treatment module, control treatment module generates workpiece figure according to scan-data.
S5, reference model reference point and multiple model characteristic point selection standard, select corresponding work piece reference point and multiple workpiece features point in workpiece figure.
Particularly, with the central point of workpiece figure for work piece reference point; With the central point of workpiece figure for the center of circle, do the first workpiece circumscribed circle on vertical plane and the second workpiece circumscribed circle on horizontal plane respectively to workpiece figure, the workpiece figure point be positioned on the first workpiece circumscribed circle and second workpiece circumscribed circle is workpiece features point; In addition, workpiece features point also comprises peak, the minimum point of workpiece figure.
S6, with the coordinate of work piece reference point each workpiece features point for initial point calculates.
S7, the coordinate of each workpiece features point to be contrasted with corresponding aspect of model point coordinates, if result is consistent, then represent that workpiece is qualified; If result is inconsistent, then represent that workpiece is defective.
When workpiece is qualified, workpiece figure should be consistent with model figure, and namely the coordinate of workpiece features point is identical with corresponding aspect of model point coordinates.
The above; be only the present invention's preferably detailed description of the invention; but protection scope of the present invention is not limited thereto; anyly be familiar with those skilled in the art in the technical scope that the present invention discloses; be equal to according to technical scheme of the present invention and inventive concept thereof and replace or change, all should be encompassed within protection scope of the present invention.
Claims (4)
1. a 3 D-printing system carries out the method for product self-inspection, it is characterized in that, according to preset model figure and according to after model figure marker part, workpiece is scanned, and generate actual graphical according to scan-data, by actual graphical and model graphic correlation, judge that whether workpiece is qualified, described method specifically comprises the following steps:
S1, in 3 D-printing system preset model figure;
S2, choose a model reference point and multiple model characteristic point at model figure, with model reference point for initial point calculates the coordinate of each model characteristic point;
S3, according to model figure marker part;
S4, workpiece to be scanned, generate workpiece figure according to scan-data;
S5, reference model reference point and multiple model characteristic point selection standard, select corresponding work piece reference point and multiple workpiece features point in workpiece figure;
S6, with the coordinate of work piece reference point each workpiece features point for initial point calculates;
S7, the coordinate of each workpiece features point to be contrasted with corresponding aspect of model point coordinates, if result is consistent, then represent that workpiece is qualified; If result is inconsistent, then represent that workpiece is defective.
2. 3 D-printing system as claimed in claim 1 carries out the method for product self-inspection, and it is characterized in that, model reference point is the central point of model figure, and work piece reference point is the central point of workpiece figure.
3. 3 D-printing system as claimed in claim 1 carries out the method for product self-inspection, it is characterized in that, with the central point of model figure for the center of circle, do the first model circumscribed circle on vertical plane and the second model circumscribed circle on horizontal plane to model figure respectively, the point of illustraton of model morpheme on the first model circumscribed circle and the second model circumscribed circle is model characteristic point; With the central point of workpiece figure for the center of circle, do the first workpiece circumscribed circle on vertical plane and the second workpiece circumscribed circle on horizontal plane respectively to workpiece figure, the workpiece figure point be positioned on the first workpiece circumscribed circle and second workpiece circumscribed circle is workpiece features point.
4. the 3 D-printing system as described in claim 1 or 2 or 3 carries out the method for product self-inspection, it is characterized in that, multiple model characteristic point comprises peak, the minimum point of model figure, and workpiece features point comprises peak, the minimum point of workpiece figure.
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106270501A (en) * | 2016-08-30 | 2017-01-04 | 西安铂力特激光成形技术有限公司 | A kind of 3D prints cross-sections match method, combined shaping method and cross 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 |
| CN107428082A (en) * | 2015-04-17 | 2017-12-01 | Eos有限公司电镀光纤系统 | The production successively automatic generation method of the control instruction of construction device and control instruction generation unit |
| 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 |
| CN110400389A (en) * | 2018-04-24 | 2019-11-01 | 依科视朗国际有限公司 | Obtain the method for important feature and the method to its component classification in same type component |
| CN112004658A (en) * | 2018-04-26 | 2020-11-27 | 惠普发展公司，有限责任合伙企业 | Print production quality prediction |
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| CN106270501A (en) * | 2016-08-30 | 2017-01-04 | 西安铂力特激光成形技术有限公司 | A kind of 3D prints cross-sections match method, combined shaping method and cross section restorative procedure |
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| CN110400389A (en) * | 2018-04-24 | 2019-11-01 | 依科视朗国际有限公司 | Obtain the method for important feature and the method to its component classification in same type component |
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| CN112004658A (en) * | 2018-04-26 | 2020-11-27 | 惠普发展公司，有限责任合伙企业 | Print production quality prediction |
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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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