A method and system for quickly arranging a welding part based on CAA development

Abstract

The application relates to the technical field of digital design of ships, and particularly discloses a welding part rapid arrangement method and system based on CAA development, wherein the method comprises the following steps: a welding part model is constructed, and an auxiliary plane circle and an auxiliary center line are created in the model; a ship coordinate system and a structure background curved surface are established; a welding part positioning auxiliary data set is constructed, the data set comprises a shell structure center point, a welding part arrangement target point, an auxiliary plane circle center, a welding part axis, a shell structure normal line, a first positioning circle and a second positioning circle; the shell structure center point and the first positioning circle are rotated around a structure center axis according to an input rotation angle, the shell structure normal line and the second positioning circle are determined; and the auxiliary center line of the welding part is aligned with the shell structure normal line, and the auxiliary plane circle is aligned with the second positioning circle, so that accurate positioning of the welding part is realized.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of digital design of ships, and particularly relates to a welding part rapid arrangement method and system based on CAA development. BACKGROUND

[0002] In the field of digital design of ships, the arrangement of welding parts (such as welding seat plates, cup-type pipe joints, etc.) is an important part of overall design. The number of welding parts is large, the arrangement precision requirement is high, and the design iteration is frequent. The traditional arrangement method usually needs the designer to manually adjust the position of the welding part, which specifically includes the following steps:

[0003] Initial positioning: placing the welding part in the center of the shell structure;

[0004] Translation adjustment: manually translating to the position intersecting with the structure;

[0005] Rotation adjustment: rotating radially around the center to the specified angle;

[0006] Height adjustment: fine adjustment of the installation height of the welding part.

[0007] However, the above method has the following problems:

[0008] Complicated operation: each step needs manual intervention, which is low in efficiency;

[0009] Precision depends on experience: manual adjustment is easily affected by human factors, and it is difficult to ensure consistency;

[0010] High cost of design iteration: repeated adjustment is needed when modifying repeatedly, which prolongs the design cycle.

[0011] In the prior art, patent CN202111025139.8 (a shell welding part installation positioning method) proposes a welding part positioning scheme based on theoretical model extraction of type value, combined with field marking and laser tracker inspection, but it focuses on the positioning and inspection in the physical construction stage, and does not solve the problem of efficient modeling and arrangement in the digital design stage.

[0012] Therefore, there is an urgent need for a welding part rapid arrangement method based on digital design tools to improve design efficiency, reduce manual intervention, and ensure arrangement precision. SUMMARY

[0013] To achieve the purpose of the present application, the present application provides a welding part rapid arrangement method based on CAA development, which comprises:

[0014] Step S1: constructing a welding part model and creating an auxiliary plane circle and an auxiliary center line in the model;

[0015] Step S2: establishing a full-ship coordinate system and a structure background surface;

[0016] Step S3: constructing a welding part positioning auxiliary data set, the data set including a shell structure center point, a welding part arrangement target point, an auxiliary plane circle center, a welding part axis, a shell structure normal line, a first positioning circle and a second positioning circle;

[0017] Step S4: rotating the shell structure center point and the first positioning circle around the structure center axis according to the input rotation angle, determining the shell structure normal line and the second positioning circle;

[0018] Step S5: achieving accurate positioning of the welding part by aligning the auxiliary center line of the welding part with the shell structure normal line and aligning the auxiliary plane circle with the second positioning circle.

[0019] In some embodiments, step S1 includes:

[0020] The radius of the auxiliary plane circle is set to match the welding part pass diameter, for adjusting the welding part installation height;

[0021] The auxiliary center line is set to be perpendicular to the auxiliary plane circle plane, for achieving welding part centering.

[0022] In some embodiments, step S2 includes:

[0023] The structure background surface is constructed based on the ship cylindrical structure features, for spatial positioning reference when the welding part is arranged.

[0024] In some embodiments, step S3 includes:

[0025] The welding part axis is determined according to the welding part arrangement target point and the auxiliary plane circle center;

[0026] The first positioning circle is constructed with the welding part arrangement target point as the center.

[0027] In some embodiments, step S3 further includes:

[0028] The welding part translation distance is calculated through the vector of the structure center point and the welding part arrangement target point;

[0029] The welding part rotation angle is determined through the included angle of the welding part axis and the shell structure normal line;

[0030] The welding part installation height is dynamically adjusted through the intersection of the auxiliary plane circle and the structure background surface.

[0031] To achieve the same inventive purpose, the application also provides a welding part rapid arrangement system developed based on CAA, including:

[0032] A model construction module is configured to construct a welding piece model and create an auxiliary plane circle and an auxiliary center line in the model.

[0033] A background construction module is configured to establish a full-ship coordinate system and a structural background surface.

[0034] A dataset construction module is configured to construct a welding piece positioning auxiliary dataset, which includes a shell structure center point, a welding piece arrangement target point, an auxiliary plane circle center, a welding piece axis, a shell structure normal line, a first positioning circle, and a second positioning circle.

[0035] An auxiliary determination module is configured to rotate the shell structure center point and the first positioning circle around a structure center axis according to an input rotation angle to determine the shell structure normal line and the second positioning circle.

[0036] A welding piece positioning module is configured to achieve accurate positioning of the welding piece by aligning the auxiliary center line of the welding piece with the shell structure normal line and aligning the auxiliary plane circle with the second positioning circle.

[0037] In some embodiments, the model construction module is configured to:

[0038] The radius of the auxiliary plane circle is set to match the welding piece pass diameter to adjust the welding piece installation height.

[0039] The auxiliary center line is set to be perpendicular to the auxiliary plane circle plane to achieve welding piece centering.

[0040] In some embodiments, the background construction module is configured to:

[0041] The structural background surface is constructed based on the cylindrical structure features of the ship to serve as a spatial positioning reference for welding piece arrangement.

[0042] In some embodiments, the dataset construction module is configured to:

[0043] The welding piece axis is determined according to the welding piece arrangement target point and the auxiliary plane circle center.

[0044] The first positioning circle is constructed with the welding piece arrangement target point as the center.

[0045] In some embodiments, the dataset construction module is further configured to:

[0046] The welding piece translation distance is calculated through the vector of the structure center point and the welding piece arrangement target point.

[0047] The welding piece rotation angle is determined through the included angle of the welding piece axis and the shell structure normal line.

[0048] The mounting height of the welding part is dynamically adjusted through the intersection of the auxiliary planar circle and the structural background surface.

[0049] The beneficial effects of the above technical solutions are:

[0050] The welding part rapid arrangement method and system based on CAA provided by the application have the following significant advantages compared with the traditional manual arrangement method and the prior art:

[0051] 1. Greatly improve the design efficiency

[0052] Through parameterized input (X1, s, θ) and automatic alignment (LineZ and Line2, Top surface and Mycircle2), one-key accurate positioning of the welding part is realized, avoiding tedious manual translation, rotation and height adjustment, and the arrangement time can be reduced by more than 80%.

[0053] 2. Improve the arrangement accuracy and consistency

[0054] Based on the mathematical calculation of the full-ship coordinate system and the auxiliary data set, the human operation error is eliminated, and the accuracy (error ≤ ±0.5mm) of the position, angle and mounting height of the welding part is ensured, meeting the high-precision requirements of ship design.

[0055] 3. Simplify the design iteration process

[0056] Modify the parameters to quickly adjust the position of the welding part, without the need for repeated manual operation, significantly reducing the design rework cost, especially suitable for complex cabin arrangement scenarios with multiple iterations.

[0057] 4. Reduce the dependence on manual skills

[0058] Through the standardized human-computer interaction interface (such as input box and "change direction" option), the dependence on the experience of designers is reduced, and new employees can also quickly master the welding part arrangement operation.

[0059] 5. Seamless integration with existing digital design system

[0060] Based on CAA secondary development, compatible with CATIA platform, can directly call ship theoretical model data, avoid additional data conversion, improve the whole process design efficiency.

[0061] 6. Provide reliable data basis for subsequent construction

[0062] The generated welding part positioning data can be directly output to the manufacturing link (such as CNC machining or laser positioning), which is complementary to the construction inspection scheme of CN202111025139.8, realizing the full-digitalization collaboration from design to construction.

[0063] In conclusion, the present application solves the problems of low efficiency, poor precision and difficult iteration of traditional welding part arrangement by the intelligent and parameterized arrangement method, and provides efficient and reliable technical support for digital design of a ship. BRIEF DESCRIPTION OF DRAWINGS

[0064] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the embodiments will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative effort.

[0065] Figure 1 A flowchart of a welding part rapid arrangement method based on CAA development provided by an embodiment of the present application is shown in the figure.

[0066] Figure 2 A welding part model diagram of a welding part rapid arrangement method based on CAA development provided by an embodiment of the present application is shown in the figure.

[0067] Figure 3 A full-ship coordinate system and structure background surface diagram of a welding part rapid arrangement method based on CAA development provided by an embodiment of the present application is shown in the figure.

[0068] Figure 4 A positioning auxiliary data set diagram of a welding part rapid arrangement method based on CAA development provided by an embodiment of the present application is shown in the figure.

[0069] Figure 5 A positioning auxiliary data diagram of a welding part rapid arrangement method based on CAA development provided by an embodiment of the present application is shown in the figure.

[0070] Figure 6 A structure diagram of a welding part rapid arrangement system based on CAA development provided by an embodiment of the present application is shown in the figure.

[0071] Figure 7 A human-computer interaction interface diagram of a welding part rapid arrangement system based on CAA development provided by an embodiment of the present application is shown in the figure. DETAILED DESCRIPTION

[0072] The technical solutions in the embodiments of the present application will be described clearly and completely with reference to the drawings of the embodiments of the present application. Obviously, the described embodiments are only some embodiments of the present application, but not all the embodiments.

[0073] Examples of the embodiments are illustrated in the accompanying drawings, throughout which like or similar characters of reference denote throughout the drawings like or similar elements or components having the same or similar function. The embodiments described below by reference to the drawings are exemplary and are intended to be illustrative of the present application, and are not to be construed as limiting the present application.

[0074] Embodiment one

[0075] One embodiment of the present application provides a rapid welding part arrangement method based on CAA development, referring to Figure 1 as shown, comprising:

[0076] Step S1: constructing a welding part model and creating an auxiliary plane circle and an auxiliary center line in the model;

[0077] Step S2: establishing a full-ship coordinate system and a structure background surface;

[0078] Step S3: constructing a welding part positioning auxiliary dataset, the dataset including a hull structure center point, a welding part arrangement target point, an auxiliary plane circle center, a welding part axis, a hull structure normal line, a first positioning circle and a second positioning circle;

[0079] Step S4: rotating the hull structure center point and the first positioning circle around the structure center axis according to the input rotation angle to determine the hull structure normal line and the second positioning circle;

[0080] Step S5: aligning the auxiliary center line of the welding part with the hull structure normal line and aligning the auxiliary plane circle with the second positioning circle to achieve accurate positioning of the welding part.

[0081] In one specific embodiment of the present application, step S1 comprises:

[0082] The radius of the auxiliary plane circle is set to match the welding part pass diameter for adjusting the welding part installation height;

[0083] The auxiliary center line is set to be perpendicular to the auxiliary plane circle plane for realizing welding part centering.

[0084] In one specific embodiment of the present application, step S2 comprises:

[0085] The structure background surface is constructed based on the cylindrical structure characteristics of the ship for spatial positioning reference when arranging the welding part.

[0086] In one specific embodiment of the present application, step S3 comprises:

[0087] The welding part axis is determined according to the welding part arrangement target point and the auxiliary plane circle center;

[0088] The first positioning circle is constructed with the welding part arrangement target point as the center.

[0089] In one specific embodiment of the present invention, step S3 further includes:

[0090] The translation distance of the weldment is calculated by the vector between the center point of the structure and the target point of the weldment arrangement.

[0091] The rotation angle of the welded component is determined by the angle between the axis of the welded component and the normal line of the shell structure.

[0092] The installation height of the welded parts is dynamically adjusted by the intersection of the auxiliary planar circle and the structural background surface.

[0093] Specifically, refer to Figure 5 As shown, the coordinates of P1 are automatically generated as (X1, 0, Zc) based on the X-axis coordinates of the weldment to be positioned. X1 is the X-axis positioning input of the weldment, and Zc is the X-axis coordinate of the weldment. c The known height of the structure's center; P2 is a point located above P1 (Rs), with coordinates (X1, 0, Z). c+R-s ), s is the distance between the Topsurface of the weldment and the inner surface of the structure, i.e., the installation height of the weldment is input; Line1 can be obtained from P1 and P2. At the same time, at point P2, with P2 as the center, a first positioning circle Mycircle1 of arbitrary radius is constructed on the XY plane. For ease of selection, the radius is set to 50mm; Finally, according to the positioning input θ of the weldment, the plane containing Line1 and Mycircle1 is rotated clockwise by θ around the central axis of the structure to obtain Line2 and Mycircle2.

[0094] This application achieves one-click precise positioning of welded components through parametric input (X1, s, θ) and automated alignment (LineZ and Line2, Topsurface and Mycircle2), avoiding tedious manual translation, rotation, and height adjustment, reducing setup time by more than 80%. Furthermore, based on mathematical calculations using the entire ship's coordinate system and auxiliary datasets, it eliminates human error, ensuring the accuracy of the welded component's position, angle, and installation height (error ≤ ±0.5mm), meeting the high-precision requirements of ship design.

[0095] Example 2

[0096] One embodiment of the present invention provides a rapid placement system for welded components based on CAA, referring to... Figure 6 As shown, it includes:

[0097] Model building module 10: Used to build the welded part model and create auxiliary planar circles and auxiliary center lines in the model;

[0098] Background Construction Module 20: Used to establish the ship's coordinate system and structural background surfaces;

[0099] The data set construction module 30 is configured to construct a welding piece positioning auxiliary data set, and the data set comprises a shell structure center point, a welding piece arrangement target point, an auxiliary plane circle center, a welding piece axis, a shell structure normal line, a first positioning circle and a second positioning circle.

[0100] The auxiliary determination module 40 is configured to rotate the shell structure center point and the first positioning circle around the structure center axis according to the input rotation angle, and determine the shell structure normal line and the second positioning circle.

[0101] The welding piece positioning module 50 is configured to realize accurate positioning of the welding piece by aligning the auxiliary center line of the welding piece with the shell structure normal line and aligning the auxiliary plane circle with the second positioning circle.

[0102] In an embodiment of the present application, the model construction module 10 is configured to:

[0103] The radius of the auxiliary plane circle is set to match the welding piece diameter, and is used to adjust the welding piece installation height.

[0104] The auxiliary center line is set to be perpendicular to the auxiliary plane circle plane, and is used to realize the centering of the welding piece.

[0105] In an embodiment of the present application, the background construction module 20 is configured to:

[0106] The structure background surface is constructed based on the ship cylindrical structure features, and is used as a spatial positioning reference when the welding piece is arranged.

[0107] In an embodiment of the present application, the data set construction module 30 is configured to:

[0108] The welding piece axis is determined according to the welding piece arrangement target point and the auxiliary plane circle center;

[0109] The first positioning circle is constructed with the welding piece arrangement target point as the center.

[0110] In an embodiment of the present application, the data set construction module 30 is further configured to:

[0111] The welding piece translation distance is calculated by a vector between the structure center point and the welding piece arrangement target point;

[0112] The welding piece rotation angle is determined by an included angle between the welding piece axis and the shell structure normal line;

[0113] The welding piece installation height is dynamically adjusted by an intersection point between the auxiliary plane circle and the structure background surface.

[0114] Specifically, refer to Figure 5As shown, the coordinates of P1 are automatically generated as (X1, 0, Zc) based on the X-axis coordinates of the weldment to be positioned. X1 is the X-axis positioning input of the weldment, and Zc is the X-axis coordinate of the weldment. c The known height of the structure's center; P2 is a point located above P1 (Rs), with coordinates (X1, 0, Z). c+R-s ), s is the distance between the Topsurface of the weldment and the inner surface of the structure, i.e., the installation height of the weldment is input; Line1 can be obtained from P1 and P2. At the same time, at point P2, with P2 as the center, a first positioning circle Mycircle1 of arbitrary radius is constructed on the XY plane. For ease of selection, the radius is set to 50mm; Finally, according to the positioning input θ of the weldment, the plane containing Line1 and Mycircle1 is rotated clockwise by θ around the central axis of the structure to obtain Line2 and Mycircle2.

[0115] The above welding component arrangement method is implemented through a rapid welding component arrangement system. This system is based on CAA secondary development. X1, s, and θ are three parameters for welding component positioning. The preliminary human-computer interaction interface is designed as follows (refer to...). Figure 7 As shown, the operation steps are as follows:

[0116] 1. Start the rapid placement system for welded parts and the human-machine interface will appear;

[0117] 2. Select the weldment to be located in the data packet;

[0118] 3. Input the three welding component positioning information respectively: s (distance from the pressure shell), X1 (X coordinate value), and θ (angle with the central axis);

[0119] 4. Automatically create auxiliary datasets;

[0120] 5. Automatic positioning of welded parts (if the welded parts are positioned in the wrong direction, you need to check "Reverse the direction of welded parts").

[0121] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

[0122] The various embodiments in the specification are described in progressive manner, and each embodiment focuses on the difference from other embodiments, and the same or similar parts between the embodiments can be referred to each other. The embodiments of the present application are described with reference to flowcharts and / or block diagrams of the method, terminal device (system), and computer program product according to the embodiments of the present application. It should be understood that each flow and / or block in the flowcharts and / or block diagrams, and the combination of the flows and / or blocks can be implemented by computer program instructions. These computer program instructions can be provided to a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing terminal device to produce a machine, so that the instructions executed by the computer or other programmable data processing terminal device produce a device that implements the functions specified in the flow Figure 1 one or more flows and / or blocks Figure 1 one or more flows and / or blocks Figure 1 one or more flows and / or blocks Figure 1 one or more flows and / or blocks Figure 1 one or more flows and / or blocks Figure 1The steps of the functions specified in one or more boxes. Although preferred embodiments of the invention have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments as well as all changes and modifications falling within the scope of the embodiments of the invention. Finally, it should be noted that in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or terminal device that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or terminal device. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or terminal device that includes said element.

[0123] The methods and apparatus provided by the present invention have been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of the present invention. The descriptions of the above embodiments are only for the purpose of helping to understand the methods and core ideas of the present invention. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the ideas of the present invention. Therefore, the content of this specification should not be construed as a limitation of the present invention.

[0124] In the description of this specification, references to terms such as "an embodiment," "some embodiments," "example," "specific example," or "a specific embodiment" or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, illustrative expressions of terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0125] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application.

Claims

1. A quick arrangement method of a welding piece based on CAA development, characterized in that, The method comprises the following steps: Step S1: constructing a welding piece model and creating an auxiliary plane circle and an auxiliary center line in the model; Step S2: establishing a full-ship coordinate system and a structure background curve; Step S3: constructing a welding piece positioning auxiliary data set, wherein the data set comprises a shell structure center point, a welding piece arrangement target point, an auxiliary plane circle center, a welding piece axis, a shell structure normal line, a first positioning circle and a second positioning circle; Step S4: rotating the shell structure center point and the first positioning circle around the structure center axis according to an input rotation angle to determine the shell structure normal line and the second positioning circle; Step S5: aligning the auxiliary center line of the welding piece with the shell structure normal line and aligning the auxiliary plane circle with the second positioning circle to achieve accurate positioning of the welding piece.

2. The method of claim 1, wherein, Step S1 comprises: The radius of the auxiliary plane circle is set to match the welding piece pass diameter for adjusting the welding piece installation height; The auxiliary center line is set to be perpendicular to the auxiliary plane circle plane for realizing the centering of the welding piece.

3. The method of claim 1, wherein, Step S2 comprises: The structure background curve is constructed based on the cylindrical structure characteristics of the ship for spatial positioning reference when the welding piece is arranged.

4. The method of claim 1, wherein, Step S3 comprises: The welding piece axis is determined according to the welding piece arrangement target point and the auxiliary plane circle center; The first positioning circle is constructed with the welding piece arrangement target point as the center.

5. The method of claim 1, wherein, Step S3 further comprises: The welding piece translation distance is calculated through the vector of the structure center point and the welding piece arrangement target point; The welding piece rotation angle is determined through the included angle of the welding piece axis and the shell structure normal line; The welding piece installation height is dynamically adjusted through the intersection point of the auxiliary plane circle and the structure background curve.

6. A quick arrangement system for welding parts based on CAA development, characterized in that, The method comprises: A model construction module for constructing a welding piece model and creating an auxiliary plane circle and an auxiliary center line in the model; A background construction module for establishing a full-ship coordinate system and a structure background curve; A data set construction module for constructing a welding piece positioning auxiliary data set, wherein the data set comprises a shell structure center point, a welding piece arrangement target point, an auxiliary plane circle center, a welding piece axis, a shell structure normal line, a first positioning circle and a second positioning circle; An auxiliary determination module for rotating the shell structure center point and the first positioning circle around the structure center axis according to an input rotation angle to determine the shell structure normal line and the second positioning circle; A welding piece positioning module for aligning the auxiliary center line of the welding piece with the shell structure normal line and aligning the auxiliary plane circle with the second positioning circle to achieve accurate positioning of the welding piece.

7. The CAA development based weldment quick lay-out system, as recited in claim 6, c h a r a c t e r i z e d i n t h a t, The model construction module is used for: The radius of the auxiliary plane circle is set to match the welding piece pass diameter for adjusting the welding piece installation height; The auxiliary center line is set to be perpendicular to the auxiliary plane circle plane for realizing the centering of the welding piece.

8. The CAA development based weldment quick lay-out system, as recited in claim 6, c h a r a c t e r i z e d i n t h a t, The background construction module is used for: The structure background curve is constructed based on the cylindrical structure characteristics of the ship for spatial positioning reference when the welding piece is arranged.

9. The CAA development based weldment quick lay-out system, as recited in claim 6, c h a r a c t e r i z e d i n t h a t, The data set construction module is used for: The welding piece axis is determined according to the welding piece arrangement target point and the auxiliary plane circle center; The first positioning circle is constructed with the welding piece arrangement target point as the center.

10. The CAA development based weldment quick lay-out system, as recited in claim 6, c h a r a c t e r i z e d i n t h a t, The data set construction module is further used for: The welding piece translation distance is calculated through a vector of the structure center point and a welding piece arrangement target point; The welding piece rotation angle is determined through an included angle of the welding piece axis and a shell structure normal line; The welding piece installation height is dynamically adjusted through an intersection of the auxiliary plane circle and a structure background surface.

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