CN110490952B - Drawing method of welding process diagram - Google Patents
Drawing method of welding process diagram Download PDFInfo
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- CN110490952B CN110490952B CN201910781857.4A CN201910781857A CN110490952B CN 110490952 B CN110490952 B CN 110490952B CN 201910781857 A CN201910781857 A CN 201910781857A CN 110490952 B CN110490952 B CN 110490952B
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- 238000003466 welding Methods 0.000 title claims abstract description 112
- 238000000034 method Methods 0.000 title claims abstract description 46
- 238000010586 diagram Methods 0.000 title claims abstract description 21
- 238000009877 rendering Methods 0.000 claims 2
- 238000005491 wire drawing Methods 0.000 claims 1
- 238000013507 mapping Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T11/00—2D [Two Dimensional] image generation
- G06T11/20—Drawing from basic elements, e.g. lines or circles
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T11/00—2D [Two Dimensional] image generation
- G06T11/60—Editing figures and text; Combining figures or text
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Abstract
The invention provides a method for drawing a welding process diagram, which comprises the following steps: s1, establishing a rectangular coordinate system L; s2, establishing a primitive library based on the rectangular coordinate system L for each welding object, wherein the primitive library comprises primitive names, primitive drawing data sets, primitive drawing functions and adjusting parameter sets; s3, establishing a primitive association parameter, a primitive association function, a welding line drawing function and a welding line parameter between every two primitives; s4, creating a drawing model; the drawing method of the welding process diagram does not need manual drawing, and technicians can automatically generate the corresponding process diagram only by inputting parameters on the interface, so that the drawing method is convenient and quick. Technicians can select corresponding primitives to establish a model according to different welding objects and welding requirements, and the application range is wide; the primitive library can be designed by self with the updating of the welding object, and the method has strong expansibility.
Description
Technical Field
The invention relates to the technical field of welding processes, in particular to a drawing method of a welding process diagram.
Background
Before welding, a worker firstly obtains a process drawing, the shape and the size of a welding object and the position relation between two or more welding objects are shown on the drawing, and parameters such as the length, the width, the distance between two or more welding objects, the bevel angle and the like of the welding object are marked. Workers carry out unified operation according to the process drawing. At present, a designer draws the drawings before each welding operation through manual operation or a drawing tool, and then hands the drawn drawings to a worker, and because the requirements of objects and parameters of each welding operation are different, the drawings corresponding to different requirements need great effort of the designer to draw.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: the invention provides a drawing method of a welding process diagram, aiming at solving the problem that technicians need to spend great effort to draw the welding process diagram before carrying out a welding process in the prior art.
The technical scheme adopted by the invention for solving the technical problems is as follows: a drawing method of a welding process diagram comprises the following steps:
s1, establishing a rectangular coordinate system L;
s2, establishing a primitive library based on the rectangular coordinate system L for each welding object, wherein the primitive library comprises primitive names, primitive drawing data sets, primitive drawing functions and adjusting parameter sets;
s3, establishing a primitive association parameter, a primitive association function, a welding line drawing function and a welding line parameter between every two primitives;
s4, creating a drawing model: selecting at least two primitive libraries and matching corresponding primitive association functions and welding line drawing functions, wherein one primitive is used as a basic primitive, and other primitives are used as reference primitives;
s5, drawing a process diagram based on the drawing model: providing an input interface of an adjustment parameter set and a welding line parameter, acquiring the position coordinates of a basic point of a primitive drawing dataset of the primitive from the primitive drawing dataset of the primitive, drawing the graph of the primitive according to the primitive drawing function of the primitive, the externally input adjustment parameter set and the position coordinates of the basic point, drawing the graph of a reference primitive according to the primitive association parameter, the primitive association function, the primitive drawing function of the reference primitive and the externally input adjustment parameter set between the reference primitive and the basic primitive, and drawing the welding line between the primitives according to the welding line drawing function and the externally input welding line parameter.
Preferably, the primitive is divided into continuous line segments, two end points of each line segment are respectively a starting point and a target point, the starting point of the next line segment is the target point of the previous line segment according to the drawing sequence, and the primitive drawing function comprises a single drawing function corresponding to each line segment;
in step S5, the basic point of the basic primitive is used as the starting point of the first line segment, the coordinates of the target point of the first line segment are determined according to the single drawing function and the adjustment parameter set of the first line segment, the first line segment is drawn according to the single drawing function and the coordinates of the two end points of the first line segment, and so on, the basic primitive is drawn.
According to one embodiment:
the base primitive comprises a base weld segment, and the reference primitive comprises a reference weld segment corresponding to the base weld segment;
in the step S5, the coordinates of the reference associated point on the reference welding portion line segment are determined according to the coordinates of the base associated point on the base welding portion line segment, the primitive associated parameter, the primitive associated function, and the externally input adjustment parameter set, the coordinates of the two end points of the reference welding portion line segment are determined according to the single drawing function of the reference welding portion line segment, the coordinates of the reference associated point, and the adjustment parameter set, the reference welding portion line segment is drawn according to the single drawing function of the reference welding portion line segment and the coordinates of the two end points, and the drawing of the reference primitive is completed according to the step of drawing the base primitive.
According to one embodiment:
the base primitive comprises a base welding part line segment, and the reference primitive comprises a reference welding part line segment corresponding to the base welding part line segment;
in the step S5, drawing of the reference primitive is completed according to the step of drawing the basic primitive; and determining the coordinates of the reference associated point on the reference welding line segment according to the coordinates of the basic associated point on the basic welding line segment, the primitive associated parameters, the primitive associated function and an externally input adjustment parameter set, determining the coordinates of two endpoints of the reference welding line segment according to the single drawing function of the reference welding line segment, the coordinates of the reference associated point and the adjustment parameter set, and offsetting the reference primitive to a corresponding position according to the coordinates of the two endpoints of the reference welding line segment and the reference associated point.
Preferably, in step S5, the coordinates of the two ends of the weld line are determined according to the externally input weld parameter, the base weld line segment and the reference weld line segment, and the weld line is drawn according to the coordinates of the two ends of the weld line and the weld line drawing function.
Preferably, the primitive drawing data set includes a primitive shape, coordinates of a primitive point, and a line segment width, and the adjustment parameter set includes a root gap parameter, a workpiece end distance parameter, a workpiece thickness parameter, a groove angle parameter, and a welding line segment length parameter.
Preferably, the method further comprises the following steps:
establishing an expansion function and an expansion parameter set, wherein the expansion parameter set comprises a background parameter, a filling parameter, a shadow parameter and a color parameter;
after the primitive drawing is completed, the expansion function refers to an externally input expansion parameter set and other known data to perform background drawing, content filling, shadow drawing and/or color setting.
Preferably, the method further comprises the following steps:
establishing marking parameters, character parameters and symbol parameters;
and marking the primitive, describing the character and/or marking the symbol after the primitive is drawn.
The method for drawing the welding process diagram has the advantages that manual drawing is not needed, and a technician can automatically generate the corresponding process diagram only by inputting parameters on an interface, so that the method is convenient and quick. Technicians can select corresponding primitives to establish a model according to different welding objects and welding requirements, and the application range is wide; the primitive library can be designed by self with the updating of the welding object, and the method has strong expansibility.
Drawings
The invention is further illustrated with reference to the following figures and examples.
FIG. 1 is a flow chart of one embodiment of a method of mapping a welding process map of the present invention.
Fig. 2 is a drawing diagram of one example of a drawing method of a welding process diagram of the present invention.
Fig. 3 is a drawing diagram of another example of a drawing method of a welding process diagram of the present invention.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", and the like, indicate orientations or positional relationships based on those shown in the drawings, merely for convenience of description and simplification of the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.
Furthermore, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. 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; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood in a specific case to those of ordinary skill in the art. In addition, in the description of the present invention, "a plurality" means two or more unless otherwise specified.
As shown in fig. 1, the present invention provides a drawing method of a welding process diagram, comprising the steps of:
s1, establishing a rectangular coordinate system L, wherein the whole welding process diagram is located in the rectangular coordinate system L;
s2, establishing a primitive library based on a rectangular coordinate system L for each welding object, wherein the primitive library comprises primitive names, primitive drawing data sets, primitive drawing functions and adjusting parameter sets;
s3, establishing a primitive association function, a welding line drawing function and welding line parameters between every two primitives;
s4, creating a drawing model: selecting at least two primitive libraries and matching corresponding primitive association functions and welding line drawing functions, wherein one primitive is used as a basic primitive, and other primitives are used as reference primitives;
s5, drawing a process diagram based on the drawing model: providing an input interface of an adjustment parameter set and a welding seam parameter, acquiring the position coordinates of a basic point of a primitive drawing dataset of the primitive from the primitive drawing dataset of the primitive, drawing the graph of the primitive according to a primitive drawing function of the primitive, an externally input adjustment parameter set and the position coordinates of the basic point, drawing the graph of a reference primitive according to a primitive association function between the reference primitive and the primitive, a primitive drawing function of the reference primitive and an externally input adjustment parameter set, and drawing a welding line between the primitives according to a welding line drawing function and an externally input welding seam parameter.
For example, as shown in fig. 2, the primitive name of the base primitive on the left side is a, which is rectangular in shape, and the primitive is divided into 4 continuous straight line segments, and two end points of each line segment are a start point and a target point respectively. The coordinate of the basic point of the primitive A is (x) 0 ，y 0 ) In this example, the starting point of the lower long side of the primitive a is the basic point, and the starting point of the next line segment according to the drawing order is the target point of the previous line segment, so the target point of the lower long side is the starting point of the right short side, the target point of the right short side is the starting point of the upper long side, the target point of the upper long side is the starting point of the left short side, the primitive drawing function includes a single drawing function corresponding to each line segment, in this example, the adjustment parameter set includes the length a of the short side of the primitive a, and the primitive drawing data set includes the ratio α of the long side to the short side, so the single drawing function of the lower long side of the primitive a is y = y 0 From this, the coordinates of the target point on the lower long side can be determined to be (a × α, 0); and drawing the long side of the lower layer according to the single drawing function of the long side of the lower side and the coordinates of the two end points, and drawing the basic primitive A in the same way.
The primitive name of the reference primitive on the right side is B, the shape of the primitive B is a right trapezoid, the base primitive comprises a base welding part line segment, and the reference primitive comprises a reference welding part line segment corresponding to the base welding part line segment; in this specific example, the right short side of the primitive a is the base weld segment, and the left oblique waist of the primitive B is the reference weld segment. The basic associated point on the welding line segment is the root of the graphic element A, which means the graphic element AThe target point of the lower long side of the A is the root of the primitive B by referring to the reference association point on the welding line segment, the target point refers to the starting point of the lower bottom edge of the primitive B, and the primitive association function between the primitive A and the primitive B is y = y 0 The primitive association function determines the position relationship between the root of the primitive A and the root of the primitive B, and the primitive association parameter includes a root gap d, which is the distance between a target point of the lower long edge of the primitive A and a starting point of the lower bottom edge of the primitive B, so that the coordinate (x) of the reference association point can be determined 1 ，y 1 ). The adjusting parameter set of the primitive B comprises the length B of the right side waist and the top slope angle beta, and the single drawing function of the reference welding line segment is
y＝(x-x 1 )tanβ+y 1 And because the length of the right waist is b, the coordinate of the other end point of the reference welding line segment can be obtained, the reference welding line segment is drawn according to the single drawing function of the reference welding line segment and the coordinates of the two end points, and finally the drawing of the reference primitive is completed according to the step of drawing the basic primitive.
According to some of the other examples,
the method comprises the steps of drawing a basic primitive, determining the coordinate of a reference associated point on a reference welding line segment according to the coordinate of the basic associated point on the basic welding line segment, a primitive associated parameter, a primitive associated function and an externally input adjustment parameter set, determining the coordinate of two endpoints of the reference welding line segment according to a single drawing function of the reference welding line segment, the coordinate of the reference associated point and the adjustment parameter set, and offsetting the reference primitive to a corresponding position according to the coordinate of the two endpoints of the reference welding line segment and the reference associated point.
After the graphic element A and the graphic element B are drawn, the coordinates of two end points of the welding line are determined according to welding line parameters, basic welding line segments and reference welding line segments which are input from the outside, in the example, a welding line is formed between the right short side of the graphic element A and the left oblique waist of the graphic element B, the welding line parameters are 1-2, a welding path is represented to form two welding lines, each welding line consists of 4 continuous and closed curve segments, in the graph 2, the two end points of one welding line are the two end points of the right short side of the graphic element A, the two end points of the other welding line are the two end points of the left oblique waist of the graphic element B, the two welding lines share the two end points, finally, the welding line is drawn according to the coordinates of the two end points of the welding line and a welding line drawing function, the positions of the welding line are determined by the two end points of the welding line, and the linear shape of the welding line is determined by the welding line drawing function. As shown in FIG. 3, the weld parameter is 2-1, representing two passes, each having 1 weld.
In other examples, the primitive drawing dataset further includes a line segment width defining a width of a line segment in the primitive, the adjustment parameter set further includes a workpiece end distance parameter, and if the workpiece end distance is defined, the limitation of the scale is cancelled, for example, the workpiece end distance of the primitive a is defined, the length of the long edge is determined by the ratio α of the long edge to the short edge, and the length of the long edge is determined by the workpiece end distance.
In some other examples, the method further comprises the following steps:
establishing an expansion function and an expansion parameter set, wherein the expansion parameter set comprises a background parameter, a filling parameter, a shadow parameter and a color parameter;
after the primitive drawing is completed, the expansion function refers to an externally input expansion parameter set and other known data to perform background drawing, content filling, shadow drawing and/or color setting.
In some other examples, the method further comprises the following steps:
establishing a marking parameter, a character parameter and a symbol parameter;
and marking the primitive, describing the character and/or marking the symbol after the primitive is drawn.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, a schematic representation of the term does not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
In light of the foregoing description of the preferred embodiment of the present invention, many modifications and variations will be apparent to those skilled in the art without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.
Claims (1)
1. A drawing method of a welding process diagram is characterized by comprising the following steps:
s1, establishing a rectangular coordinate system L;
s2, establishing a primitive library based on the rectangular coordinate system L for each welding object, wherein the primitive library comprises primitive names, primitive drawing data sets, primitive drawing functions and adjusting parameter sets;
s3, establishing a primitive association parameter, a primitive association function, a welding line drawing function and a welding line parameter between every two primitives;
s4, creating a drawing model: selecting at least two primitive libraries and matching corresponding primitive association functions and welding line drawing functions, wherein one primitive is used as a basic primitive, and other primitives are used as reference primitives;
s5, drawing a process diagram based on the drawing model: providing an input interface for adjusting the parameter set and the welding seam parameter, acquiring the position coordinate of a basic point of a primitive drawing dataset of the primitive drawing dataset, drawing a graph of the primitive according to a primitive drawing function of the primitive, an externally input adjusting parameter set and the position coordinate of the basic point, drawing a graph of a reference primitive according to a primitive association parameter, a primitive association function, a primitive drawing function of the reference primitive and an externally input adjusting parameter set between the reference primitive and the basic primitive, and drawing a welding line between the primitives according to the welding line drawing function and the externally input welding seam parameter;
the primitive drawing data set comprises primitive shapes, coordinates of basic points of the primitives and line segment widths, and the adjusting parameter set comprises root gap parameters, workpiece end distance parameters, workpiece thickness parameters, groove angle parameters and welding line segment length parameters;
the basic primitive is divided into continuous line segments, two end points of each line segment are respectively a starting point and a target point, the starting point of the next line segment is the target point of the previous line segment according to the drawing sequence, and the primitive drawing function comprises a single drawing function corresponding to each line segment;
in step S5, the basic point of the basic primitive is used as the starting point of the first line segment, the coordinates of the target point of the first line segment are determined according to the single rendering function and the adjustment parameter set of the first line segment, the first line segment is rendered according to the single rendering function and the coordinates of the two end points of the first line segment, and the basic primitive is rendered in the same way;
the base primitive comprises a base weld segment, and the reference primitive comprises a reference weld segment corresponding to the base weld segment;
in the step S5, determining coordinates of a reference associated point on a reference welding line segment according to the coordinates of the base associated point on the base welding line segment, the primitive associated parameter, the primitive associated function and an externally input adjustment parameter set, determining coordinates of two endpoints of the reference welding line segment according to the single drawing function of the reference welding line segment, the coordinates of the reference associated point and the adjustment parameter set, drawing the reference welding line segment according to the single drawing function of the reference welding line segment and the coordinates of the two endpoints, and completing drawing of the reference primitive according to the step of drawing the base primitive;
in step S5, the coordinates of the two end points of the bonding wire are determined according to the externally input weld parameter, the basic bonding portion line segment, and the reference bonding portion line segment, and the bonding wire is drawn according to the coordinates of the two end points of the bonding wire and the bonding wire drawing function.
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| US10334209B2 (en) * | 2015-12-17 | 2019-06-25 | Nike, Inc. | Image stitching for footwear component processing |
| US10198873B2 (en) * | 2016-09-22 | 2019-02-05 | Apple Inc. | Common geometric primitive associated with multiple geometric primitives |
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| CN105138793A (en) * | 2015-09-11 | 2015-12-09 | 国网山东庆云县供电公司 | Rapid distribution line drawing method |
| CN105718636A (en) * | 2016-01-14 | 2016-06-29 | 中国南方电网有限责任公司 | Automatic conversion method for station primary wiring diagram model |
| KR101914946B1 (en) * | 2017-06-27 | 2018-11-06 | 삼성중공업 주식회사 | Sampling system and method for welding inspection points |
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