CN104907376A - Flame way planning method for line heating torsion plates - Google Patents
Flame way planning method for line heating torsion plates Download PDFInfo
- Publication number
- CN104907376A CN104907376A CN201510323125.2A CN201510323125A CN104907376A CN 104907376 A CN104907376 A CN 104907376A CN 201510323125 A CN201510323125 A CN 201510323125A CN 104907376 A CN104907376 A CN 104907376A
- Authority
- CN
- China
- Prior art keywords
- flue
- processing curve
- curve
- target surface
- point
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D11/00—Bending not restricted to forms of material mentioned in only one of groups B21D5/00, B21D7/00, B21D9/00; Bending not provided for in groups B21D5/00 - B21D9/00; Twisting
- B21D11/20—Bending sheet metal, not otherwise provided for
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/24—Measuring arrangements characterised by the use of optical techniques for measuring contours or curvatures
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Length Measuring Devices With Unspecified Measuring Means (AREA)
Abstract
The invention provides a flame way planning method for line heating torsion plates. The method includes: calculating a distance between each feature point of measurement data and a corresponding feature point of a target curved surface to generate a deviation cloud chart from a machined curved surface to the target curved surface; taking a vertex angle with the largest deviation value from the deviation cloud chart, and connecting the taken vertex angle with an opposite vertex angle to generate a curved line on the deviation cloud chart; taking points from the curved lines at equal distance intervals, and drawing isodiff of the points; projecting the isodiff onto the machined curved surface to plan a flame way path. The flame way planning method is high in flame way planning reasonability and not only applicable to inextensible curved surfaces but also applicable to extensible curved surfaces such as the torsion plates. Moreover, the flame way path is reasonably optimized by correction according to expert empirical rules.
Description
Technical field
The present invention relates to ship hull plate manufacture field, more specifically, relate to a kind of flame forming plate twisted board flue planing method.
Background technology
Flame forming plate refers to that drying torch along predetermined heater wire oxy-acetylene carries out local wire heating to sheet material, and follow the tracks of cooling (or allowing it naturally cool) with water, make plate produce local plastic deformation, thus sheet material is curved a kind of bent plate method of required curve form.Some countries are called wire heating.Flame forming plate is current most of shipbuilding, and the heavy industry enterprises such as steel construction bend the major processes of complicated curvature plate and hull interior large-scale component.
Flue planning is the core link in flame forming plate technique, determines the deformation tendency after processing curve processing.For a long time, flue plans that this operation is all directly on processing curve, carry out flue planning with chalk by rule of thumb by veteran workman.This mode requires very high to the Heuristics of workman, and the subjective factor of a guy exists, and flue planning rationality is poor, and is difficult to carry out informationization with automatic control system and exchanges.
For the automatic planning problem of flue, related research institutes proposes Doubly curved surfaces flue planing method.The method, from opposite angles, is regarded the target surface of ship hull plate as and is formed by connecting by many enough little planes, keeps every block small flat surface shape constant, according to certain rules whole Doubly curved surfaces is paved, then must occur crack after launching.Then by heating lines arrangement at crack place, make amount of contraction just equal fracture width, so just can form the shape required by target surface.But this method is only applicable to undeveloped curved surface, as sail template and saddle shaped plate, and be not suitable for developable surface as turned round template.
Summary of the invention
For the flue overcome described in above-mentioned prior art, the present invention plans that rationality is poor, be only applicable to the defects such as undeveloped curved surface, provide the flame forming plate twisted board flue planing method that a kind of flue planning rationality is high, be applicable to developable surface.
For solving the problems of the technologies described above, technical scheme of the present invention is as follows:
A kind of flame forming plate twisted board flue planing method, said method comprising the steps of:
S1: profile measurement is carried out to the current twisted board of processing that needs, obtains the measurement data of processing curve;
S2: mate the measurement data of processing curve and the data of corresponding target surface, described target surface is the curved surface that processing curve is expected to be processed to;
S3: according to the space length computing formula of point-to-point transmission, each characteristic points of computation and measurement data is to the distance, delta d of target surface character pair point, and generate the deviation cloud atlas of processing curve to target surface, described space length computing formula is:
In formula, the characteristic point that (x1, y1, z1) is measurement data, the character pair point of (x2, y2, z2) target surface;
S4: get the drift angle that deviation cloud atlas upper deviation amount is maximum, coupled together by this drift angle with relative drift angle, deviation cloud atlas generates a curve; This curve is got a bit every a segment distance, and the isodiff of this point is drawn out; Isodiff is projected on processing curve, cook up flue track.
In the preferred scheme of one, in step S1, described method also comprises carries out subsequent treatment by the data transfer measuring the processing curve obtained to computer.Measurement data can be carried out informationization with automatic control system with result of calculation and be exchanged.
In the preferred scheme of one, in step S2, the method that the measurement data of processing curve and the data of corresponding target surface are mated is comprised the following steps:
S2.1: using the mid point of processing curve as the origin of coordinates, shorter its direction, single order fitting a straight line place of center curve of processing curve is X-direction, and new coordinate system, as Z-direction, is set up in the normal vector direction of mid point;
S2.2: make 3 dimension data of target surface and processing curve transform on new coordinate system by 3 dimension rotations and translation, the unification of both realizations coordinate system;
S2.3: by the projecting characteristic points of target surface on processing curve, utilizes surface interpolation algorithm on processing curve, find corresponding characteristic point.
In the preferred scheme of one, in step S4, described method also comprises: the empirical rule according to expert is revised flue track, obtains final flue track.
In the preferred scheme of one, described expertise rule is: the overlapping margins of flue terminal and processing curve; The projection line of flue track in XoY face is straight line.
Compared with prior art, the beneficial effect of technical solution of the present invention is: flame forming plate twisted board flue planing method of the present invention, each characteristic points of computation and measurement data is to the distance of target surface character pair point, generate the deviation cloud atlas of processing curve to target surface, get the drift angle that deviation cloud atlas upper deviation amount is maximum, this drift angle is coupled together with relative drift angle, deviation cloud atlas generates a curve; This curve is got a bit every a segment distance, and the isodiff of this point is drawn out; Isodiff is projected on processing curve, cook up flue track.Flue planning rationality of the present invention is high, and the method is not only applicable to undeveloped curved surface, and is applicable to developable surface as turned round the flue planning of template, and meanwhile, the present invention adopts the empirical rule of expert to revise flue track, makes flue track reasonably optimizing more.
Accompanying drawing explanation
Fig. 1 is the flow chart of flame forming plate twisted board flue planing method of the present invention.
Fig. 2 is the schematic diagram mated the measurement data of processing curve and the data of corresponding target surface.
Fig. 3 is the deviation cloud atlas of processing curve to target surface.
Fig. 4 is the schematic diagram of the final flue track obtained.
Detailed description of the invention
Accompanying drawing, only for exemplary illustration, can not be interpreted as the restriction to this patent;
In order to better the present embodiment is described, some parts of accompanying drawing have omission, zoom in or out, and do not represent the size of actual product;
To those skilled in the art, in accompanying drawing, some known features and explanation thereof may be omitted is understandable.
Below in conjunction with drawings and Examples, technical scheme of the present invention is described further.
Embodiment 1
A kind of flame forming plate twisted board flue planing method, as shown in Figure 1, said method comprising the steps of:
S1: profile measurement is carried out to the current twisted board of processing that needs, obtains the measurement data of processing curve, the data transfer measuring the processing curve obtained is carried out subsequent treatment to computer; Measurement data can be carried out informationization with automatic control system with result of calculation and be exchanged.
S2: as shown in Figure 2, mate the measurement data of processing curve and the data of corresponding target surface, described target surface is the curved surface that processing curve is expected to be processed to, and in Fig. 2, dotted line represents target surface, and solid line represents processing curve;
The method that the measurement data of processing curve and the data of corresponding target surface are mated is comprised the following steps:
S2.1: using the mid point of processing curve as the origin of coordinates, shorter its direction, single order fitting a straight line place of center curve of processing curve is X-direction, and new coordinate system, as Z-direction c, is set up in the normal vector direction of mid point;
S2.2: make 3 dimension data of target surface and processing curve transform on new coordinate system by 3 dimension rotations and translation, the unification of both realizations coordinate system;
S2.3: by the projecting characteristic points of target surface on processing curve, utilizes surface interpolation algorithm on processing curve, find corresponding characteristic point.
S3: according to the space length computing formula of point-to-point transmission, each characteristic points of computation and measurement data is to the distance, delta d of target surface character pair point, generate the deviation cloud atlas of processing curve to target surface, deviation cloud atlas as shown in Figure 3, in figure, dotted line represents isodiff, and described space length computing formula is:
In formula, the characteristic point that (x1, y1, z1) is measurement data, the character pair point of (x2, y2, z2) target surface.
S4: get the drift angle that deviation cloud atlas upper deviation amount is maximum, coupled together by this drift angle with relative drift angle, deviation cloud atlas generates a curve; This curve is got a bit every a segment distance, and the isodiff of this point is drawn out; Isodiff is projected on processing curve, cook up flue track.
S5: the empirical rule according to expert is revised flue track, obtains final flue track, as shown in Figure 4.Its principle is that the experience of workman is become Expert Rules, then revises with the conflicting place of Expert Rules in initial flue track.
Described expertise rule is: the overlapping margins of flue terminal and processing curve; The projection line of flue track in XoY face is straight line.
Flame forming plate twisted board flue planing method of the present invention, each characteristic points of computation and measurement data is to the distance of target surface character pair point, generate the deviation cloud atlas of processing curve to target surface, get the drift angle that deviation cloud atlas upper deviation amount is maximum, this drift angle is coupled together with relative drift angle, deviation cloud atlas generates a curve; This curve is got a bit every a segment distance, and the isodiff of this point is drawn out; Isodiff is projected on processing curve, cook up flue track.Flue planning rationality of the present invention is high, and the method is not only applicable to undeveloped curved surface, and is applicable to developable surface as turned round the flue planning of template, and meanwhile, the present invention adopts the empirical rule of expert to revise flue track, makes flue track reasonably optimizing more.
The corresponding same or analogous parts of same or analogous label;
The term describing position relationship in accompanying drawing, only for exemplary illustration, can not be interpreted as the restriction to this patent;
Obviously, the above embodiment of the present invention is only for example of the present invention is clearly described, and is not the restriction to embodiments of the present invention.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here exhaustive without the need to also giving all embodiments.All any amendments done within the spirit and principles in the present invention, equivalent to replace and improvement etc., within the protection domain that all should be included in the claims in the present invention.
Claims (5)
1. a flame forming plate twisted board flue planing method, is characterized in that, said method comprising the steps of:
S1: profile measurement is carried out to the current twisted board of processing that needs, obtains the measurement data of processing curve;
S2: mate the measurement data of processing curve and the data of corresponding target surface, described target surface is the curved surface that processing curve is expected to be processed to;
S3: according to the space length computing formula of point-to-point transmission, each characteristic points of computation and measurement data is to the distance, delta d of target surface character pair point, and generate the deviation cloud atlas of processing curve to target surface, described space length computing formula is:
In formula, the characteristic point that (x1, y1, z1) is measurement data, the character pair point of (x2, y2, z2) target surface;
S4: get the drift angle that deviation cloud atlas upper deviation amount is maximum, coupled together by this drift angle with relative drift angle, deviation cloud atlas generates a curve; This curve is got a bit every a segment distance, and the isodiff of this point is drawn out; Isodiff is projected on processing curve, cook up flue track.
2. flame forming plate twisted board flue planing method according to claim 1, is characterized in that, in step S1, described method also comprises carries out subsequent treatment by the data transfer measuring the processing curve obtained to computer.
3. flame forming plate twisted board flue planing method according to claim 1, is characterized in that, in step S2, comprises the following steps the method that the measurement data of processing curve and the data of corresponding target surface are mated:
S2.1: using the mid point of processing curve as the origin of coordinates, shorter its direction, single order fitting a straight line place of center curve of processing curve is X-direction, and new coordinate system, as Z-direction, is set up in the normal vector direction of mid point;
S2.2: make 3 dimension data of target surface and processing curve transform on new coordinate system by 3 dimension rotations and translation;
S2.3: by the projecting characteristic points of target surface on processing curve, utilizes surface interpolation algorithm on processing curve, find corresponding characteristic point.
4. flame forming plate twisted board flue planing method according to claim 1, it is characterized in that, in step S4, described method also comprises: the empirical rule according to expert is revised flue track, obtains final flue track.
5. flame forming plate twisted board flue planing method according to claim 4, it is characterized in that, described expertise rule is: the overlapping margins of flue terminal and processing curve; The projection line of flue track in XoY face is straight line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510323125.2A CN104907376A (en) | 2015-06-12 | 2015-06-12 | Flame way planning method for line heating torsion plates |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510323125.2A CN104907376A (en) | 2015-06-12 | 2015-06-12 | Flame way planning method for line heating torsion plates |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104907376A true CN104907376A (en) | 2015-09-16 |
Family
ID=54077057
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510323125.2A Pending CN104907376A (en) | 2015-06-12 | 2015-06-12 | Flame way planning method for line heating torsion plates |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104907376A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106681272A (en) * | 2017-02-15 | 2017-05-17 | 广东工业大学 | Hull planking heating way processing method and device |
| CN107942944A (en) * | 2017-12-28 | 2018-04-20 | 广东工业大学 | A kind of flame forming plate flue track self study generation method and device |
| CN108090297A (en) * | 2017-12-28 | 2018-05-29 | 广东工业大学 | The flue orbit generation method and device of a kind of ship hull plate |
| CN108472706A (en) * | 2015-12-28 | 2018-08-31 | 川崎重工业株式会社 | Deformation processing supports system and deformation processing to support method |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101369144A (en) * | 2008-09-28 | 2009-02-18 | 广东工业大学 | Processing method for three-dimensional stereo forming of line heating plate bender numerical control system |
| CN102129716A (en) * | 2011-03-01 | 2011-07-20 | 广东工业大学 | Method for fitting curved surface of water-fire bending plate |
| CN102682139A (en) * | 2011-03-17 | 2012-09-19 | 齐亮 | Method for forming shell plate curve of ship body |
| JP2013169549A (en) * | 2012-02-17 | 2013-09-02 | Mitsubishi Heavy Ind Ltd | Bending device |
| CN103673916A (en) * | 2012-09-06 | 2014-03-26 | 上海船舶工艺研究所 | On-line detection method for line heating forming |
| CN104239621A (en) * | 2014-09-03 | 2014-12-24 | 江苏科技大学 | Line heating automatic forming method based on curve surface unfolding |
| CN104463845A (en) * | 2014-10-31 | 2015-03-25 | 广东工业大学 | Method and system for selecting registration points of line heating features |
-
2015
- 2015-06-12 CN CN201510323125.2A patent/CN104907376A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101369144A (en) * | 2008-09-28 | 2009-02-18 | 广东工业大学 | Processing method for three-dimensional stereo forming of line heating plate bender numerical control system |
| CN102129716A (en) * | 2011-03-01 | 2011-07-20 | 广东工业大学 | Method for fitting curved surface of water-fire bending plate |
| CN102682139A (en) * | 2011-03-17 | 2012-09-19 | 齐亮 | Method for forming shell plate curve of ship body |
| JP2013169549A (en) * | 2012-02-17 | 2013-09-02 | Mitsubishi Heavy Ind Ltd | Bending device |
| CN103673916A (en) * | 2012-09-06 | 2014-03-26 | 上海船舶工艺研究所 | On-line detection method for line heating forming |
| CN104239621A (en) * | 2014-09-03 | 2014-12-24 | 江苏科技大学 | Line heating automatic forming method based on curve surface unfolding |
| CN104463845A (en) * | 2014-10-31 | 2015-03-25 | 广东工业大学 | Method and system for selecting registration points of line heating features |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108472706A (en) * | 2015-12-28 | 2018-08-31 | 川崎重工业株式会社 | Deformation processing supports system and deformation processing to support method |
| CN108472706B (en) * | 2015-12-28 | 2020-06-30 | 川崎重工业株式会社 | Deformation processing support system and deformation processing support method |
| CN106681272A (en) * | 2017-02-15 | 2017-05-17 | 广东工业大学 | Hull planking heating way processing method and device |
| CN107942944A (en) * | 2017-12-28 | 2018-04-20 | 广东工业大学 | A kind of flame forming plate flue track self study generation method and device |
| CN108090297A (en) * | 2017-12-28 | 2018-05-29 | 广东工业大学 | The flue orbit generation method and device of a kind of ship hull plate |
| CN107942944B (en) * | 2017-12-28 | 2020-08-11 | 广东工业大学 | Line heating flame path track self-learning generation method and device |
| CN108090297B (en) * | 2017-12-28 | 2021-07-06 | 广东工业大学 | Flame path track generation method and device for hull planking |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104907376A (en) | Flame way planning method for line heating torsion plates | |
| CN102500498B (en) | Optimization method for spray gun track of spraying robot on irregular polyhedron | |
| CN103149937A (en) | Transverse lateral curve flight-path tracking method based on curvature compensation | |
| CN108731591A (en) | A kind of robot tool coordinate system scaling method based on plane restriction | |
| CN105133840A (en) | Construction method for hyperboloid furred ceiling | |
| CN104462646A (en) | Quality evaluating method for vessel line heating plates | |
| Efimov et al. | Improving the efficiency of automated precision robotics-enabled positioning and welding | |
| CN110181516A (en) | A kind of paths planning method of spray robot, device, system and storage medium | |
| CN106774393B (en) | Task progress calculation method and device and unmanned aerial vehicle | |
| He et al. | A model predictive path control algorithm of single-point incremental forming for non-convex shapes | |
| CN106774154A (en) | A kind of space curve interpolating method theoretical based on osculating plane | |
| KR102203916B1 (en) | A Hot Forming Method for plate | |
| Liu et al. | A novel offline programming approach of robot welding for multi-pipe intersection structures based on NSGA-Ⅱ and measured 3D point-clouds | |
| CN102540976B (en) | Entity-based milling simulating method for efficiently extracting cutting angle range | |
| CN111610751B (en) | Interpolation error multi-subdivision iterative calculation method for cross point set NURBS interpolation curve | |
| CN105809736A (en) | Three-dimensional reconstruction method and device of pipeline | |
| CN109014590A (en) | A kind of super breadth free splicing processing method of laser-induced thermal etching | |
| CN110695494B (en) | Corrugated plate external shaft tracking system and method thereof | |
| US9152743B2 (en) | Computer process for determining best-fitting materials for constructing architectural surfaces | |
| CN115786656A (en) | Fire forming method and system for corrosion-resistant steel | |
| KR20160113943A (en) | welding amount auto estimation method for ship | |
| Wang et al. | Towards region-based robotic machining system from perspective of intelligent manufacturing: A technology framework with case study | |
| CN102262779A (en) | Layer-tangency method suitable for vertical shaping mechanism | |
| Son et al. | Production automation system for three-dimensional template pieces used to evaluate shell plate completeness | |
| He et al. | Path planning algorithm based on adaptive model predictive control and learning-based parameter identification approach for incremental forming processes for product precision improvements |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| CB03 | Change of inventor or designer information |
Inventor after: Cheng Lianglun Inventor after: Xu Jinxiong Inventor after: Li Jingyao Inventor after: Huang Haiyan Inventor before: Cheng Lianglun Inventor before: Xu Jinxiong Inventor before: Li Jingyao |
|
| COR | Change of bibliographic data | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20160203 Address after: 510006 Panyu District, Guangzhou, Guangzhou University,, West Ring Road, No. 100 Applicant after: Guangdong University of Technology Applicant after: CSSC OFFSHORE & MARINE ENGINEERING (GROUP) COMPANY LIMITED Address before: 510006 Panyu District, Guangzhou, Guangzhou University,, West Ring Road, No. 100 Applicant before: Guangdong University of Technology |
|
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150916 |