Processing method, system, equipment and medium for welding groove of intersecting circular pipes

Abstract

The present invention provides a method, system, equipment, and medium for processing weld grooves of intersecting circular tube intersection lines, comprising: constructing an intersecting circular tube intersection model using analytic geometry based on collected intersecting circular tube intersection data; constructing a ruled surface based on the intersecting circular tube intersection model, and performing surface trimming processing based on the ruled surface to obtain a groove surface model; performing groove surface simulation processing based on the groove surface model to obtain a groove simulation processing scheme; wherein the intersecting circular tube intersection model includes at least one or more of the following: an intersection line model, a groove line model, an unfolded line model of the intersection line, and an unfolded line model of the groove line; and the intersecting circular tube intersection data includes at least one or more of the following: main pipe data and branch pipe data. By combining modeling with processing simulation, the present invention realizes the transition from model to entity simulation processing of groove surface processing, expands the processing range of large-scale circular tube intersection lines, and improves processing efficiency.

Description

Technical Field

[0001] The invention belongs to the technical field of intersecting circular tubes, and particularly relates to a processing method, system, equipment and medium for welding grooves of intersecting circular tubes. Background Art

[0002] Currently, the processing of weld grooves on intersecting pipes is mostly done by manual grinding or using a cutting machine. Manual grinding is only suitable for processing small parts and results in low production efficiency and poor quality. Cutting machines, on the other hand, require at least five-axis motion to process the groove surface. Due to the limitations of the machine's processing capabilities, they are not suitable for processing the grooves of large pipes with diameters exceeding 2 meters.

[0003] In large, deep-sea offshore structures, the use of intersecting circular tube welded guide structures is becoming increasingly common to reduce resistance to water flow. Due to the cyclical loads of wind, waves, and currents, as well as residual stresses from the welding process, these intersecting circular tube jacket structures are highly susceptible to low-cycle fatigue and corrosion cracking. Consequently, they place special demands on the weld grooves and their angles. To ensure uniform weld strength and force, the weld angle must be the same at all points along the intersection line, resulting in a very complex spatial curved surface. Summary of the Invention

[0004] In order to overcome the above-mentioned deficiencies of the prior art, the present invention proposes a method for processing the welding groove of the intersection line of intersecting circular pipes, comprising:

[0005] According to the collected intersecting circular tube data, the intersecting circular tube model is constructed using the analytical geometry method;

[0006] Constructing a ruled surface based on the intersecting circular tube intersection model, and performing surface trimming processing on the ruled surface to obtain a groove surface model;

[0007] Performing groove surface simulation processing based on the groove surface model to obtain a groove simulation processing plan;

[0008] The intersecting circular tube intersection model includes at least one or more of the following: an intersection line model, a groove line model, an expansion line model of the intersection line, and an expansion line model of the groove line;

[0009] The intersecting circular pipe intersection data includes at least one or more of the following: main pipe data and branch pipe data.

[0010] Preferably, constructing a circular tube intersection model using an analytical geometry method based on the collected circular tube intersection data includes:

[0011] Determine the intersection line rectangular coordinate system based on the collected main pipe data and branch pipe data, and establish an intersection line model based on the intersection line rectangular coordinate system and the circular pipe intersection data;

[0012] Expanding the intersection lines in the intersection line model along any busbar of the branch pipe to construct an expanded line model of the intersection lines;

[0013] According to the preset geometric model of intersecting circular pipes, the dihedral angle is solved, the groove angle required for processing the branch pipe corresponding to the intersection line is calculated according to the dihedral angle, and the groove line model and the unfolded line model of the groove line are constructed;

[0014] Wherein, the intersection line model includes at least one or more of the following: an inner diameter intersection line curve and an outer diameter intersection line curve;

[0015] The unfolded line model of the intersection line includes at least one or more of the following: an unfolded line curve of an inner diameter intersection line curve and an unfolded line curve of an outer diameter intersection line curve.

[0016] Preferably, the calculation formula of the groove angle is as follows:

[0017]

[0018] Among them, h is the groove angle, α is the arc angle of any point on the intersection line passing through the upper busbar of the branch pipe, r is the radius of the branch pipe, and R is the radius of the main pipe. is the included angle between the main pipe and the branch pipe, and θ is the included angle of the welding groove between the main pipe and the branch pipe at any point on the intersection line.

[0019] Preferably, the calculation formula of the inner diameter intersection curve is as follows:

[0020]

[0021] Wherein, C1 is the X-axis coordinate of the inner diameter intersection line curve, Y1 is the Y-axis coordinate of the inner diameter intersection line curve, Z1 is the Z-axis coordinate of the inner diameter intersection line curve, and l is the side length corresponding to the angle of any point on the main pipe.

[0022] Preferably, the step of constructing a ruled surface based on the intersecting circular tube intersection model and performing surface trimming processing on the ruled surface to obtain a groove surface model comprises:

[0023] Performing curve screening based on the intersecting circular tube intersection model to obtain a curve expression;

[0024] Converting the curve expression into a three-dimensional curve expression according to preset curve coordinate variables;

[0025] The three-dimensional inner diameter intersection line curve and the groove line curve are used as construction lines to construct a ruled surface, and a preset trimming process is performed on the ruled surface to obtain a groove surface model;

[0026] The curve expression includes at least one or more of the following: an inner diameter intersection line curve, a groove line curve, an unfolded line curve of an inner diameter intersection line, and an unfolded line curve of a groove line.

[0027] Preferably, the calculation formula of the groove line curve is as follows:

[0028]

[0029] Among them, X3 is the X-axis coordinate of the groove line curve, Y3 is the Y-axis coordinate of the groove line curve, Z3 is the Z-axis coordinate of the groove line curve, H is the wall thickness, θ 12 It is the inner deflection angle of the groove.

[0030] Preferably, the performing groove surface simulation processing based on the groove surface model to obtain a simulation processing plan includes:

[0031] Creating a groove geometry based on the groove surface model;

[0032] Performing simulation processing on the groove geometry according to a preset process to obtain groove simulation processing data;

[0033] The groove simulation processing data is post-processed to determine the groove simulation processing plan.

[0034] The present invention also provides a processing system for the welding groove of the intersection line of intersecting circular pipes, comprising:

[0035] Intersecting circular tube intersection module: Based on the collected intersecting circular tube intersection data, the intersecting circular tube intersection model is constructed using analytical geometry method;

[0036] Groove surface module: constructing a ruled surface based on the intersecting circular tube intersection model, and performing surface trimming processing according to the ruled surface to obtain a groove surface model;

[0037] Simulation processing module: performs groove surface simulation processing based on the groove surface model to obtain a groove simulation processing plan;

[0038] The intersecting circular tube intersection model includes at least one or more of the following: an intersection line model, a groove line model, an expansion line model of the intersection line, and an expansion line model of the groove line;

[0039] The intersecting circular pipe intersection data includes at least one or more of the following: main pipe data and branch pipe data.

[0040] Preferably, the intersecting circular tube intersection module is specifically used for:

[0041] Determine the intersection line rectangular coordinate system based on the collected main pipe data and branch pipe data, and establish an intersection line model based on the intersection line rectangular coordinate system and the circular pipe intersection data;

[0042] Expanding the intersection lines in the intersection line model along any busbar of the branch pipe to construct an expanded line model of the intersection lines;

[0043] According to the preset geometric model of intersecting circular pipes, the dihedral angle is solved, the groove angle required for processing the branch pipe corresponding to the intersection line is calculated according to the dihedral angle, and the groove line model and the unfolded line model of the groove line are constructed;

[0044] Wherein, the intersection line model includes at least one or more of the following: an inner diameter intersection line curve and an outer diameter intersection line curve;

[0045] The unfolded line model of the intersection line includes at least one or more of the following: an unfolded line curve of an inner diameter intersection line curve and an unfolded line curve of an outer diameter intersection line curve.

[0046] Preferably, the calculation formula for the groove angle in the intersecting circular tube intersection module is as follows:

[0047]

[0048] Among them, h is the groove angle, α is the arc angle of any point on the intersection line passing through the upper busbar of the branch pipe, r is the radius of the branch pipe, and R is the radius of the main pipe. is the included angle between the main pipe and the branch pipe, and θ is the included angle of the welding groove between the main pipe and the branch pipe at any point on the intersection line.

[0049] Preferably, the calculation formula of the inner diameter intersection line curve in the intersecting circular tube intersection module is as follows:

[0050]

[0051] Among them, X1 is the X-axis coordinate of the inner diameter intersection line curve, Y1 is the Y-axis coordinate of the inner diameter intersection line curve, Z1 is the Z-axis coordinate of the inner diameter intersection line curve, and l is the side length corresponding to the angle of any point on the main pipe.

[0052] Preferably, the groove curved surface module is specifically used for:

[0053] Performing curve screening based on the intersecting circular tube intersection model to obtain a curve expression;

[0054] Converting the curve expression into a three-dimensional curve expression according to preset curve coordinate variables;

[0055] The three-dimensional inner diameter intersection line curve and the groove line curve are used as construction lines to construct a ruled surface, and a preset trimming process is performed on the ruled surface to obtain a groove surface model;

[0056] The curve expression includes at least one or more of the following: an inner diameter intersection line curve, a groove line curve, an unfolded line curve of an inner diameter intersection line, and an unfolded line curve of a groove line.

[0057] Preferably, the calculation formula of the groove line curve in the groove surface module is as follows:

[0058]

[0059] Among them, X3 is the X-axis coordinate of the groove line curve, Y3 is the Y-axis coordinate of the groove line curve, Z3 is the Z-axis coordinate of the groove line curve, H is the wall thickness, θ 12 It is the inner deflection angle of the groove.

[0060] Preferably, the simulation processing module is specifically used to:

[0061] Creating a groove geometry based on the groove surface model;

[0062] Performing simulation processing on the groove geometry according to a preset process to obtain groove simulation processing data;

[0063] The groove simulation processing data is post-processed to determine the groove simulation processing plan.

[0064] The present invention also provides a computer device, comprising: one or more processors; a memory for storing one or more programs;

[0065] When the one or more programs are executed by the one or more processors, the above-mentioned method for processing the intersecting line welding groove of intersecting circular pipes is implemented.

[0066] The present invention also provides a computer-readable storage medium having a computer program stored thereon. When the computer program is executed, the method for processing the welding groove of the intersection line of intersecting circular tubes as described above is implemented.

[0067] Compared with the closest existing technology, the present invention has the following beneficial effects: The present invention also proposes a processing method, system, equipment and medium for the welding groove of the intersection line of intersecting circular tubes, including: constructing an intersecting circular tube intersection model based on the collected intersecting circular tube intersection data using analytical geometry; constructing a ruled surface based on the intersecting circular tube intersection model, and performing surface trimming processing based on the ruled surface to obtain a groove surface model; performing groove surface simulation processing based on the groove surface model to obtain a groove simulation processing plan; wherein, the intersecting circular tube intersection model includes at least one or more of the following: an intersection line model, a groove line model, an unfolded line model of the intersection line and an unfolded line model of the groove line; the intersecting circular tube intersection data includes at least one or more of the following: main pipe data and branch pipe data. The present invention combines the mathematical model of the intersection line, groove line and its development line obtained by calculation with the model and processing simulation, thereby realizing the transformation of the intersection line groove surface processing from model to simulation processing. Moreover, by performing refined modeling and simulation processing on the groove surface, the processing range of the intersection line of large circular tubes is expanded, the efficiency of the intersection line processing of large circular tubes is improved, and the processing cost is reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0068] Figure 1 A schematic flow chart of a method for processing intersecting circular pipe intersecting line welding grooves provided by the present invention;

[0069] Figure 2 A diagram of a geometric model of intersecting circular tubes of different diameters, which is a specific example of a method for processing intersecting line welding grooves of intersecting circular tubes provided by the present invention;

[0070] Figure 3 A diagram of a geometric model of intersecting circular tubes, which is a specific example of a method for processing intersecting circular tube welding grooves provided by the present invention;

[0071] Figure 4 A graph showing a dihedral angle function according to a specific example of a method for processing a welding groove of an intersecting line of intersecting circular tubes provided by the present invention;

[0072] Figure 5 A geometric model diagram of a welding groove angle in a specific example of a method for processing a welding groove of an intersecting line of intersecting circular tubes provided by the present invention;

[0073] Figure 6 A curve expression file diagram of a specific example of a method for processing a welding groove of an intersecting line of intersecting circular tubes provided by the present invention;

[0074] Figure 7 A graph of the intersection line and its development line in a specific example of a method for processing the intersection line welding groove of intersecting circular tubes provided by the present invention;

[0075] Figure 8A groove surface model diagram of a specific example of a method for processing a welding groove of an intersecting line of intersecting circular tubes provided by the present invention;

[0076] Figure 9 This is a functional diagram of a processing system for intersecting circular tube intersecting line welding grooves provided by the present invention. DETAILED DESCRIPTION

[0077] The specific embodiments of the present invention will be further described in detail below with reference to the accompanying drawings.

[0078] Example 1:

[0079] The present invention proposes a method for processing the welding groove of the intersecting line of intersecting circular pipes, such as Figure 1 As shown, including:

[0080] Step 1: Based on the collected intersecting circular tube intersection data, the intersecting circular tube intersection model is constructed using the analytical geometry method;

[0081] Step 2: constructing a ruled surface based on the intersecting circular tube intersection model, and performing surface trimming processing on the ruled surface to obtain a groove surface model;

[0082] Step 3: Performing groove surface simulation processing based on the groove surface model to obtain a groove simulation processing plan;

[0083] The intersecting circular tube intersection model includes at least one or more of the following: an intersection line model, a groove line model, an expansion line model of the intersection line, and an expansion line model of the groove line;

[0084] The intersecting circular pipe intersection data includes at least one or more of the following: main pipe data and branch pipe data.

[0085] Specifically, in a jacket structure with intersecting circular tubes, the intersection types can be divided into four main categories: equal-diameter circular tubes intersecting at right angles, equal-diameter circular tubes intersecting at oblique angles, different-diameter circular tubes intersecting at right angles, and different-diameter circular tubes intersecting at oblique angles. Due to these different intersection types, the weld groove surfaces of the intersecting bodies exhibit distinct characteristics. This method, based on digital model design, accurately and in real time generates 3D solid models of the weld groove surfaces of different intersection types by varying the variables of the circular tube diameter and the intersection angle in the expression.

[0086] Specifically, the step 1 includes: first obtaining a mathematical model of the intersection line, then deriving an unfolded line model of the intersection line, and obtaining a mathematical model of the intersection line groove surface;

[0087] Taking the intersection of different diameter circular tubes as an example, the following equations are established on the intersecting two cylindrical surfaces: Figure 2The rectangular Cartesian coordinate system shown in the figure, in which the intersection point O of the axes of the two cylinders (the large diameter tube with radius R is the main tube and the small diameter tube with radius r is the branch tube) is the coordinate origin, the axis of the branch tube is the Z axis, and the angle between the two tube axes is At any point P on the intersection line, the arc angles of the busbars on the branch and main pipes passing through point P are α and β respectively.

[0088] Among them: α is the angle of any point on the branch pipe, β is the angle of any point on the main pipe, is the angle between the branch and main pipes, r is the radius of the branch pipe, and R is the radius of the main pipe.

[0089] Depend on Figure 2 From the geometric relationship, we can see that the X, Y, and Z coordinates of any point P on the intersection line are:

[0090]

[0091] in:

[0092]

[0093] Since the side lengths L and l corresponding to α and β are equal, the relationship between α and β can be expressed as:

[0094] R sin β = r sin α

[0095] The intersection line formula of two intersecting pipes can be derived from the above geometric relationship as follows:

[0096]

[0097] When the center lines of the main and branch pipes intersect and are perpendicular, hour:

[0098]

[0099] Expand the intersection line along any generatrix of the branch pipe. At this time, the X coordinate of any point on the expansion curve of the intersection line is the arc length of the branch pipe. According to the derived intersection line formula of two intersecting pipes, the formula for expanding the intersection line into a plane curve is:

[0100]

[0101] Specifically, establish Figure 3 The geometric model of intersecting circular pipes shown in the figure, where: ν is the dihedral angle at any point on the intersection line, that is, the angle between the branch pipe section and the main pipe section passing through any point on the intersection line.

[0102] Depend on Figure 3 From the geometric relationship, we can see that:

[0103]

[0104] It can be concluded that the dihedral angle at any point on the intersection line can be expressed as:

[0105]

[0106] when That is, when the two pipes are orthogonal to each other, the formula for calculating the dihedral angle in the branch pipe section is:

[0107]

[0108] The dihedral angle calculation formula in the branch section can be used to obtain the function curve of the dihedral angle v changing with the variable α, as shown in the following example: Figure 4 As shown:

[0109] from Figure 4 From the function curve, we can see that v=f(α) is an even function in the interval (0, 2π), and the curve is symmetrical about α=π. When α=0, the value of v is the angle of intersection of the two axes of the intersecting circular tube. When α=π, When α=π / 2, the v value is maximum.

[0110] Assuming that the welding groove angle of the main and branch pipes at any point on the intersection line is θ, the corresponding groove angle h required for the branch pipe is:

[0111] h=v-θ

[0112] Specifically, since the welding groove has a certain width range H, the curvature value of each point on the arc within the groove surface width range is different, and the dihedral angle and welding groove angle values ​​of each point on the intersection line are also different. Figure 5 As shown, the angle θ between the lines of points P1, P2 and P3 is taken as the welding groove angle;

[0113] Where H is the wall thickness, θ is the welding angle, and k is the outer diameter expansion deformation ratio coefficient; θ 12 is the inner deflection angle of the groove, P1 is the coordinate point of the intersection line (inner diameter line) of the branch pipe with radius r, P2 is the coordinate point of the intersection line (outer diameter line) of the branch pipe with radius r+H, and P3 is the coordinate point of the welding groove line on the branch pipe with radius r+H.

[0114] Depend on Figure 5 The geometric relationship between points P1, P2, and P3 can be used to obtain the coordinates of point P3:

[0115]

[0116] in:

[0117]

[0118] In summary, the mathematical models of the intersection line, welding groove line and its development line required for 3D modeling can be obtained:

[0119] Branch pipe inner diameter intersection curve L1:

[0120]

[0121] Branch pipe outer diameter intersection curve L2:

[0122]

[0123] Branch pipe groove curve L3:

[0124]

[0125] The expansion line curve L4 of the branch pipe inner diameter intersection line:

[0126]

[0127] The expansion line curve L5 of the branch pipe outer diameter intersection line:

[0128]

[0129] The expansion curve L6 of the branch pipe groove line:

[0130]

[0131] Specifically, step 2 includes: constructing a spatial inner diameter intersection line curve and a groove curve through mathematical functions, and constructing a spatial ruled surface based on them, performing surface trimming on the entity, and finally obtaining a groove surface model that meets the processing requirements.

[0132] Specifically, take the vertical intersection of the main pipe and the branch pipe as an example, Figure 6 As shown, the output file of the formula curve is written and imported, where the main pipe radius r = 1500mm, the branch pipe radius r1 = 1000mm, and the wall thickness h = 40mm;

[0133] Specifically, such as Figure 7 As shown, the variables of the X, Y, and Z axes in each function curve are set respectively to generate a three-dimensional curve of the intersection line and its expansion line.

[0134] Specifically, such as Figure 8 As shown in the figure, the inner diameter intersection curve and the groove curve of the circular tube are used as the construction lines of the "grid surface" - "ruled surface", and the ruled surface is constructed. The solid is trimmed through the ruled surface, and finally the groove surface required for processing is obtained.

[0135] Specifically, step 3 includes: based on the processing capabilities of ordinary CNC machine tools, using the cavity milling layered cutting method to create a tool path by cutting the tool layer by layer along the groove surface. In the preset UG CAM environment, the intersection groove surface processing includes at least one or more of the following: creating a geometric body and creating a process

[0136] Specifically, the creation of the geometric body includes: using the spatial three-dimensional coordinate system when the groove surface model is modeled as the machine tool coordinate system, rotating the dynamic coordinate system MCS to make it consistent with the positive direction of the machine tool coordinate system to avoid reverse cutting - "cutting meat", Figure 8 The groove surface model specifies the component geometry and performs overall surface lofting on the model.

[0137] Specifically, the creation process includes: using fixed-axis surface contour milling for layered cutting, using the groove surface as the driving force, and selecting a D20 ball-end milling cutter to perform layered reciprocating milling along the groove surface. The relevant cutting parameters are set and optimized, and the tool trajectory is generated. The tool cutting status is monitored and the tool path is corrected and optimized to prevent interference and tool jumping.

[0138] Specifically, the efficient post-processing module can ultimately realize the transformation of intersection line groove surface processing from mathematical model, solid model, simulation processing to NC program. Using a three-axis milling machine, the machine tool parameters, program and tool path parameters, N / C data definition and other parameters are set respectively, and the post-processing file is completed and output to obtain the NC program file, and finally the processing simulation plan is determined.

[0139] Example 2:

[0140] The present invention also proposes a processing system for the welding groove of intersecting circular pipes, such as Figure 9 As shown, including:

[0141] Intersecting circular tube intersection module: Based on the collected intersecting circular tube intersection data, the intersecting circular tube intersection model is constructed using analytical geometry method;

[0142] Groove surface module: constructing a ruled surface based on the intersecting circular tube intersection model, and performing surface trimming processing according to the ruled surface to obtain a groove surface model;

[0143] Simulation processing module: performs groove surface simulation processing based on the groove surface model to obtain a groove simulation processing plan;

[0144] The intersecting circular tube intersection model includes at least one or more of the following: an intersection line model, a groove line model, an expansion line model of the intersection line, and an expansion line model of the groove line;

[0145] The intersecting circular pipe intersection data includes at least one or more of the following: main pipe data and branch pipe data.

[0146] Specifically, the intersecting circular tube module is used for:

[0147] Determine the intersection line rectangular coordinate system based on the collected main pipe data and branch pipe data, and establish an intersection line model based on the intersection line rectangular coordinate system and the circular pipe intersection data;

[0148] Expanding the intersection lines in the intersection line model along any busbar of the branch pipe to construct an expanded line model of the intersection lines;

[0149] According to the preset geometric model of intersecting circular pipes, the dihedral angle is solved, the groove angle required for processing the branch pipe corresponding to the intersection line is calculated according to the dihedral angle, and the groove line model and the unfolded line model of the groove line are constructed;

[0150] Wherein, the intersection line model includes at least one or more of the following: an inner diameter intersection line curve and an outer diameter intersection line curve;

[0151] The unfolded line model of the intersection line includes at least one or more of the following: an unfolded line curve of an inner diameter intersection line curve and an unfolded line curve of an outer diameter intersection line curve.

[0152] Specifically, the calculation formula for the groove angle in the intersecting circular pipe intersection module is as follows:

[0153]

[0154] Among them, h is the groove angle, α is the arc angle of any point on the intersection line passing through the upper busbar of the branch pipe, r is the radius of the branch pipe, and R is the radius of the main pipe. is the included angle between the main pipe and the branch pipe, and θ is the included angle of the welding groove between the main pipe and the branch pipe at any point on the intersection line.

[0155] Specifically, the calculation formula for the inner diameter intersection line curve in the intersecting circular tube intersection module is as follows:

[0156]

[0157] Among them, X1 is the X-axis coordinate of the inner diameter intersection line curve, Y1 is the Y-axis coordinate of the inner diameter intersection line curve, Z1 is the Z-axis coordinate of the inner diameter intersection line curve, and l is the side length corresponding to the angle of any point on the main pipe.

[0158] Specifically, the groove surface module is used for:

[0159] Performing curve screening based on the intersecting circular tube intersection model to obtain a curve expression;

[0160] Converting the curve expression into a three-dimensional curve expression according to preset curve coordinate variables;

[0161] The three-dimensional inner diameter intersection line curve and the groove line curve are used as construction lines to construct a ruled surface, and a preset trimming process is performed on the ruled surface to obtain a groove surface model;

[0162] The curve expression includes at least one or more of the following: an inner diameter intersection line curve, a groove line curve, an unfolded line curve of an inner diameter intersection line, and an unfolded line curve of a groove line.

[0163] Specifically, the calculation formula of the groove line curve in the groove surface module is as follows:

[0164]

[0165] Among them, X3 is the X-axis coordinate of the groove line curve, Y3 is the Y-axis coordinate of the groove line curve, Z3 is the Z-axis coordinate of the groove line curve, H is the wall thickness, θ 12 It is the inner deflection angle of the groove.

[0166] Specifically, the simulation processing module is used to:

[0167] Creating a groove geometry based on the groove surface model;

[0168] Performing simulation processing on the groove geometry according to a preset process to obtain groove simulation processing data;

[0169] The groove simulation processing data is post-processed to determine the groove simulation processing plan.

[0170] Example 3:

[0171] Based on the same inventive concept, the present invention also provides a computer device, which includes a processor and a memory, wherein the memory is used to store a computer program, the computer program includes program instructions, and the processor is used to execute the program instructions stored in the computer storage medium. The processor may be a central processing unit (CPU), or may be other general-purpose processors, digital signal processors (DSP), application-specific integrated circuits (ASIC), field-programmable gate arrays (FPGA) or other programmable logic devices, discrete gates or transistor logic devices, discrete hardware components, etc. It is the computing core and control core of the terminal, which is suitable for implementing one or more instructions, specifically suitable for loading and executing one or more instructions in the computer storage medium to implement the corresponding method flow or corresponding function, so as to implement the steps of the processing method of the intersection line welding groove of intersecting circular pipes in the above embodiment.

[0172] Example 4:

[0173] Based on the same inventive concept, the present invention also provides a storage medium, specifically a computer-readable storage medium (Memory), which is a memory device in a computer device for storing programs and data. It can be understood that the computer-readable storage medium here can include both built-in storage media in the computer device and, of course, extended storage media supported by the computer device. The computer-readable storage medium provides a storage space, which stores the operating system of the terminal. In addition, one or more instructions suitable for being loaded and executed by the processor are also stored in the storage space. These instructions can be one or more computer programs (including program codes). It should be noted that the computer-readable storage medium here can be a high-speed RAM memory or a non-volatile memory, such as at least one disk memory. The processor can load and execute one or more instructions stored in the computer-readable storage medium to implement the steps of a method for processing the welding groove of the intersection line of intersecting circular pipes in the above embodiment.

[0174] It will be understood by those skilled in the art that embodiments of the present invention may be provided as methods, systems, or computer program products. Thus, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment, or an embodiment combining software and hardware. Furthermore, the present invention may take the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to magnetic disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code.

[0175] The present invention is described with reference to flowcharts and / or block diagrams of methods, devices (systems), and computer program products according to embodiments of the present invention. It should be understood that each process and / or block in the flowcharts and / or block diagrams, as well as combinations of processes and / or blocks in the flowcharts and / or block diagrams, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing device to produce a machine, so that the instructions executed by the processor of the computer or other programmable data processing device generate instructions for implementing the processes in the flowcharts and / or block diagrams. Figure 1 a process or multiple processes and / or boxes Figure 1 A device that provides the functions specified in a block or multiple blocks.

[0176] These computer program instructions may also be stored in a computer readable memory that can direct a computer or other programmable data processing device to work in a specific manner, so that the instructions stored in the computer readable memory produce an article of manufacture comprising an instruction device, which implements the process Figure 1 a process or multiple processes and / or boxes Figure 1 The function specified in one or more boxes.

[0177] These computer program instructions can also be loaded onto a computer or other programmable data processing device so that a series of operational steps are executed on the computer or other programmable device to produce a computer-implemented process, thereby providing the instructions executed on the computer or other programmable device for implementing the process. Figure 1 a process or multiple processes and / or boxes Figure 1 A step that specifies a function in one or more boxes.

[0178] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit its scope of protection. Although the present invention has been described in detail with reference to the above embodiments, ordinary technicians in the field should understand that after reading the present invention, those skilled in the art may still make various changes, modifications or equivalent substitutions to the specific implementation methods of the application, but these changes, modifications or equivalent substitutions are all within the scope of protection of the pending claims.

Claims

1. A method for processing the welding groove of intersecting circular pipes, characterized in that: include: According to the collected intersecting circular tube data, the intersecting circular tube model is constructed using the analytical geometry method; Constructing a ruled surface based on the intersecting circular tube intersection model, and performing surface trimming processing on the ruled surface to obtain a groove surface model; Performing groove surface simulation processing based on the groove surface model to obtain a groove simulation processing plan; The intersecting circular tube intersection model includes at least one or more of the following: an intersection line model, a groove line model, an expansion line model of the intersection line, and an expansion line model of the groove line; The intersecting circular pipe intersection data includes at least one or more of the following: main pipe data and branch pipe data; The method of constructing a circular pipe intersection model using an analytical geometry method based on the collected circular pipe intersection data includes: determining an intersection line rectangular coordinate system based on the collected main pipe data and branch pipe data, and establishing an intersection line model based on the intersection line rectangular coordinate system and the circular pipe intersection data; Expanding the intersection lines in the intersection line model along any busbar of the branch pipe to construct an expanded line model of the intersection lines; According to the preset geometric model of intersecting circular pipes, the dihedral angle is solved, the groove angle required for processing the branch pipe corresponding to the intersection line is calculated according to the dihedral angle, and the groove line model and the unfolded line model of the groove line are constructed; Wherein, the intersection line model includes at least one or more of the following: an inner diameter intersection line curve and an outer diameter intersection line curve; The unfolded line model of the intersection line includes at least one or more of the following: an unfolded line curve of an inner diameter intersection line curve and an unfolded line curve of an outer diameter intersection line curve.

2. The method according to claim 1, wherein The calculation formula of the groove angle is as follows: ； in, is the groove angle, is the arc angle of any point on the intersection line passing through the upper busbar of the branch pipe, is the branch radius, is the main tube radius, is the included angle between the main pipe and the branch pipe, It is the welding groove angle between the main pipe and the branch pipe at any point on the intersection line.

3. The method according to claim 1, wherein The calculation formula of the inner diameter intersection curve is as follows: ； in, is the X-axis coordinate of the inner diameter intersection line curve, is the Y-axis coordinate of the inner diameter intersection line curve, is the Z-axis coordinate of the inner diameter intersection line curve, is the length of the side corresponding to the angle at any point on the main tube.

4. The method according to claim 1, wherein The method of constructing a ruled surface based on the intersecting circular tube intersection model and performing surface clipping processing on the ruled surface to obtain a groove surface model includes: Performing curve screening based on the intersecting circular tube intersection model to obtain a curve expression; Converting the curve expression into a three-dimensional curve expression according to preset curve coordinate variables; The three-dimensional inner diameter intersection line curve and the groove line curve are used as construction lines to construct a ruled surface, and a preset trimming process is performed on the ruled surface to obtain a groove surface model; The curve expression includes at least one or more of the following: an inner diameter intersection line curve, a groove line curve, an unfolded line curve of an inner diameter intersection line, and an unfolded line curve of a groove line.

5. The method according to claim 4, wherein The calculation formula of the groove line curve is as follows: ； in, is the X-axis coordinate of the groove line curve, is the Y-axis coordinate of the groove line curve, is the Z-axis coordinate of the groove line curve, is the wall thickness, It is the inner deflection angle of the groove.

6. The method according to claim 1, wherein The performing groove surface simulation processing based on the groove surface model to obtain a simulation processing plan includes: Creating a groove geometry based on the groove surface model; Performing simulation processing on the groove geometry according to a preset process to obtain groove simulation processing data; The groove simulation processing data is post-processed to determine the groove simulation processing plan.

7. A processing system for intersecting circular pipe intersecting line welding groove, characterized in that: include: Intersecting circular tube intersection module: Based on the collected intersecting circular tube intersection data, the intersecting circular tube intersection model is constructed using analytical geometry method; Groove surface module: constructing a ruled surface based on the intersecting circular tube intersection model, and performing surface trimming processing according to the ruled surface to obtain a groove surface model; Simulation processing module: performs groove surface simulation processing based on the groove surface model to obtain a groove simulation processing plan; The intersecting circular tube intersection model includes at least one or more of the following: an intersection line model, a groove line model, an expansion line model of the intersection line, and an expansion line model of the groove line; The intersecting circular pipe intersection data includes at least one or more of the following: main pipe data and branch pipe data; The method of constructing a circular tube intersection model using an analytical geometry method based on the collected circular tube intersection data includes: Determine the intersection line rectangular coordinate system based on the collected main pipe data and branch pipe data, and establish an intersection line model based on the intersection line rectangular coordinate system and the circular pipe intersection data; Expanding the intersection lines in the intersection line model along any busbar of the branch pipe to construct an expanded line model of the intersection lines; According to the preset geometric model of intersecting circular pipes, the dihedral angle is solved, the groove angle required for processing the branch pipe corresponding to the intersection line is calculated according to the dihedral angle, and the groove line model and the unfolded line model of the groove line are constructed; Wherein, the intersection line model includes at least one or more of the following: an inner diameter intersection line curve and an outer diameter intersection line curve; The unfolded line model of the intersection line includes at least one or more of the following: an unfolded line curve of an inner diameter intersection line curve and an unfolded line curve of an outer diameter intersection line curve.

8. A computer device, characterized in that: include: one or more processors; a memory for storing one or more programs; When the one or more programs are executed by the one or more processors, a method for processing intersecting circular tube intersecting line welding grooves according to any one of claims 1 to 6 is implemented.

9. A computer-readable storage medium, characterized in that A computer program is stored thereon, and when the computer program is executed, a method for processing the intersecting line welding groove of intersecting circular tubes as described in any one of claims 1 to 6 is implemented.

Images