CN114289735A - Off-line layer thickness compensation system for laser cladding - Google Patents
Off-line layer thickness compensation system for laser cladding Download PDFInfo
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- CN114289735A CN114289735A CN202111637157.1A CN202111637157A CN114289735A CN 114289735 A CN114289735 A CN 114289735A CN 202111637157 A CN202111637157 A CN 202111637157A CN 114289735 A CN114289735 A CN 114289735A
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Abstract
The invention relates to an off-line layer thickness compensation system for laser cladding, which comprises a turnover module, a plane scanning module, a path processing module and a data processing module; the planar scanning module is arranged on the side surface of the cladding head through the overturning module, the overturning module is used for station conversion of the planar scanning module, and the planar scanning module is used for scanning the current upper surface of a printed workpiece according to a path planned by the path processing module and driven by a machine tool and transmitting scanning data to the data processing module; the data processing module is respectively connected with the plane scanning module and the path processing module and is used for automatically generating a filling digital-analog according to the scanning data of the plane scanning module and transmitting the filling digital-analog to the path processing module; and the path processing module is used for planning the scanning path of the plane scanning module, planning the filling path according to the filling digital model and transmitting the filling path to the machine tool control system. The invention realizes off-line compensation of layer thickness.
Description
Technical Field
The invention belongs to the technical field of additive manufacturing, and particularly relates to an off-line layer thickness compensation system for laser cladding.
Background
The existing laser cladding equipment cannot realize process closed loop in the printing process, the equipment cannot automatically identify abnormality when the abnormality occurs, and the defects of workpieces can be gradually accumulated and amplified along with the accumulation of printing time, so that the laser cladding has high requirements on field operators, and needs to be observed manually and intervened when the defects are accumulated to a certain degree.
Disclosure of Invention
Aiming at the problems in the prior art, the invention provides an off-line layer thickness compensation system for laser cladding, which can realize basic functions such as interlayer data scanning and the like in the processing process, and can also automatically feed back scanning data to a data processing module to automatically process the scanning data into layer thickness information; the problems that the state of the existing laser cladding processed workpiece cannot be fed back in a closed loop mode and needs to be interfered by an operator on site are solved.
The invention is realized in this way, an off-line layer thickness compensation system for laser cladding, which comprises a turnover module, a plane scanning module, a path processing module and a data processing module; the plane scanning module is arranged on the side surface of the cladding head through a turnover module, the turnover module is used for station conversion of the plane scanning module, and the plane scanning module is used for scanning the current upper surface of a printed workpiece according to a path planned by the path processing module and driven by a machine tool and transmitting scanning data to the data processing module; the data processing module is respectively connected with the plane scanning module and the path processing module, and is used for automatically generating a filling digital analog according to the scanning data of the plane scanning module and transmitting the filling digital analog to the path processing module; the path processing module is used for planning the scanning path of the plane scanning module, planning the filling path according to the filling digital model and transmitting the filling path to the machine tool control system.
In the above technical solution, preferably, the plane scanning module is a micro blue light three-dimensional scanner.
In the above technical solution, preferably, the main body of the flipping module is a 180 ° rotating cylinder.
In the above technical solution, preferably, the path processing module automatically performs shortest path planning according to the contour size of the current layer and in combination with the scanning range of the plane scanning module, so that the machine tool drives the plane scanning module to scan the current layer along the planned shortest path.
The invention has the advantages and positive effects that:
1. the off-line layer thickness compensation system for laser cladding provided by the invention realizes off-line scanning and full-automatic compensation of the processing layer thickness by utilizing the overturning module, the plane scanning module, the path processing module and the data processing module, and solves various problems which cannot be realized by the traditional processing scheme.
2. The off-line detection mode is adopted, the working condition of the off-line detection mode has universality, various laser cladding working conditions can be adapted through simple transformation, and meanwhile, the measurement mode avoids the measurement error or failure condition of the existing bypass measurement caused by the conditions of angle, edge and the like from the source; meanwhile, the measuring mode enables the system to have good data acquisition, processing and feedback capabilities under the working condition of printing of multi-degree-of-freedom special-shaped parts such as rings, convex bodies, concave bodies and the like.
3. The laser cladding system is simple in structure, convenient to use, good in practical value, adaptable to most laser cladding systems and universal.
Drawings
Fig. 1 is a schematic structural diagram of an off-line layer thickness compensation system for laser cladding according to an embodiment of the present invention.
In the figure: 1. cladding head; 2. a turning module; 3. a plane scanning module; 4. a data processing module; 5. a path processing module; 6. scanning the detection light; 7. and (6) processing light.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to the accompanying drawings. It will be appreciated by those of skill in the art that the following specific examples or embodiments are illustrative of a series of preferred arrangements of the invention to further explain the principles of the invention, and that such arrangements may be used in conjunction or association with one another, unless it is explicitly stated that some or all of the specific examples or embodiments cannot be used in conjunction or association with other examples or embodiments in the invention. Meanwhile, the following specific examples or embodiments are only provided as an optimized arrangement mode and are not to be understood as limiting the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "connected" and "connected" are to be interpreted broadly, e.g., as being fixed or detachable or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Referring to fig. 1, the present embodiment provides an off-line layer thickness compensation system for laser cladding, which includes a flip module 2, a planar scanning module 3, a path processing module 5, and a data processing module 4.
The plane scanning module 3 is arranged on the side surface of the cladding head 1 through the overturning module 2, the overturning module 2 is used for station conversion of the plane scanning module 3, and due to the characteristics of strong light, high heat and the like in the processing process, the traditional plane scanning equipment can be strongly interfered, so that the optical detection end of the plane scanning module 3 needs to be overturned to be opposite to a workpiece in cladding processing, and when the scanning is needed, the optical detection end of the plane scanning module 3 is overturned to be towards the workpiece; in this embodiment, the main body of the turning module 2 is a 180-degree rotary cylinder, and accurate and reliable turning actions can be realized by switching the gas supply state.
The plane scanning module 3 is used for scanning the current upper surface of the printed workpiece according to the path planned by the path processing module 5 and driven by the machine tool, and transmitting the scanning data to the data processing module 4; the plane scanning module 3 is a miniature blue light three-dimensional scanner. The plane scanning module 3 adopts off-line scanning, the working condition of the plane scanning module has universality, the plane scanning module can be adapted to various laser cladding working conditions through simple transformation, and meanwhile, the measurement mode avoids the measurement error or failure condition caused by the conditions of angle, edge and the like of the existing bypass measurement in the source.
The data processing module 4 is respectively connected with the plane scanning module 3 and the path processing module 5, and the data processing module 4 is used for automatically generating a filling digital analog according to the scanning data of the plane scanning module 3 and transmitting the filling digital analog to the path processing module 5; the path processing module 5 is used for planning the scanning path of the plane scanning module 3, planning the filling path according to the filling digital model and transmitting the filling path to the machine tool control system.
The path processing module 5 automatically performs shortest path planning according to the contour size of the current layer and in combination with the scanning range of the plane scanning module 3, so that the machine tool drives the plane scanning module 3 to scan the current layer along the planned shortest path.
When the processing light 7 is normally processed, the optical detection end face of the plane scanning module 3 faces away from the workpiece, so that the lens and other parts are prevented from being damaged by severe environment; when layer thickness compensation is needed, the overturning module 2 drives the plane scanning module 3 to overturn, the optical detection end face of the plane scanning module 3 faces the upper surface of a workpiece, scanning detection light 6 is emitted to start scanning work, scanning data is fed back to the data processing module 4 to be processed, the data processing module 4 automatically generates a filling digital model according to defect position information, the filling digital model is converted into a machine tool machining code by the path processing module 5 finally, and the filling digital model is automatically guided into a machine tool control system to perform defect filling work, so that the layer thickness off-line compensation of laser cladding is realized.
According to the invention, the turnover module 2 is arranged on the cladding head 1, the plane scanning module 3 is arranged on the turnover module 2, when compensation is required, the turnover module 2 turns the plane scanning module 3 to a detection station, the path processing module 5 can automatically plan the shortest path according to the contour size of the current layer and in combination with the scanning range of the plane scanning module 3, then the machine tool drives the plane scanning module 3 to scan the current layer along the planned shortest path, the scanning result is input into the data processing module 4 and automatically generates a defect position filling digital model, the filling digital model is imported into the path processing module 5 again to generate a filling path, and the machine tool fills the current defect according to a filling path file, so that the off-line compensation of the layer thickness is realized.
The system has a flexible installation form, can be adapted to most laser cladding systems, and has universality.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: it is to be understood that modifications may be made to the technical solutions described in the foregoing embodiments, or some or all of the technical features may be equivalently replaced, and the modifications or the replacements may not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (4)
1. An off-line layer thickness compensation system for laser cladding, characterized in that: the system comprises a turnover module, a plane scanning module, a path processing module and a data processing module; the plane scanning module is arranged on the side surface of the cladding head through a turnover module, the turnover module is used for station conversion of the plane scanning module, and the plane scanning module is used for scanning the current upper surface of a printed workpiece according to a path planned by the path processing module and driven by a machine tool and transmitting scanning data to the data processing module; the data processing module is respectively connected with the plane scanning module and the path processing module, and is used for automatically generating a filling digital analog according to the scanning data of the plane scanning module and transmitting the filling digital analog to the path processing module; the path processing module is used for planning the scanning path of the plane scanning module, planning the filling path according to the filling digital model and transmitting the filling path to the machine tool control system.
2. The off-line layer thickness compensation system for laser cladding of claim 1, wherein the planar scanning module is a miniature blue light three-dimensional scanner.
3. The off-line layer thickness compensation system for laser cladding of claim 1, wherein the main body of the turnover module is a 180 ° rotary cylinder.
4. The off-line layer thickness compensation system for laser cladding of claim 1, wherein the path processing module automatically performs shortest path planning according to the contour dimension of the current layer and in combination with the scanning range of the plane scanning module, so that the machine tool drives the plane scanning module to scan the current layer along the planned shortest path.
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| CN202111637157.1A CN114289735A (en) | 2021-12-29 | 2021-12-29 | Off-line layer thickness compensation system for laser cladding |
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| CN202111637157.1A CN114289735A (en) | 2021-12-29 | 2021-12-29 | Off-line layer thickness compensation system for laser cladding |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116875974A (en) * | 2023-07-07 | 2023-10-13 | 郑州工业应用技术学院 | Laser cladding method and laser cladding system |
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| CN108972006A (en) * | 2018-08-30 | 2018-12-11 | 大连交通大学 | A kind of increase and decrease composite intelligent repair system of metal parts |
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| CN110328848A (en) * | 2019-06-18 | 2019-10-15 | 沈阳精合数控科技开发有限公司 | A kind of laser repair method and device |
| CN111702171A (en) * | 2020-05-28 | 2020-09-25 | 山东能源重装集团恒图科技有限公司 | 3D printing remanufacturing method for waste scraper conveyor chain wheel |
| WO2021054894A1 (en) * | 2019-09-17 | 2021-03-25 | Singapore University Of Technology And Design | Apparatus for automated additive manufacturing of a three dimensional object and a method thereof |
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2021
- 2021-12-29 CN CN202111637157.1A patent/CN114289735A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103074625A (en) * | 2013-01-16 | 2013-05-01 | 上海交通大学 | Movable laser cladding and repairing system |
| CN108972006A (en) * | 2018-08-30 | 2018-12-11 | 大连交通大学 | A kind of increase and decrease composite intelligent repair system of metal parts |
| CN110328848A (en) * | 2019-06-18 | 2019-10-15 | 沈阳精合数控科技开发有限公司 | A kind of laser repair method and device |
| CN110193603A (en) * | 2019-06-25 | 2019-09-03 | 鑫精合激光科技发展（北京）有限公司 | A kind of selective laser fusing partition method based on length of scanning line optimization |
| WO2021054894A1 (en) * | 2019-09-17 | 2021-03-25 | Singapore University Of Technology And Design | Apparatus for automated additive manufacturing of a three dimensional object and a method thereof |
| CN111702171A (en) * | 2020-05-28 | 2020-09-25 | 山东能源重装集团恒图科技有限公司 | 3D printing remanufacturing method for waste scraper conveyor chain wheel |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116875974A (en) * | 2023-07-07 | 2023-10-13 | 郑州工业应用技术学院 | Laser cladding method and laser cladding system |
| CN116875974B (en) * | 2023-07-07 | 2024-01-09 | 郑州工业应用技术学院 | Laser cladding method and laser cladding system |
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