CN113901587A

CN113901587A - Rapid design method and system for automobile welding fixture

Info

Publication number: CN113901587A
Application number: CN202111253729.6A
Authority: CN
Inventors: 吴泳荣; 杨庆保; 郑锐; 李芳芳; 李吉超
Original assignee: Shanghai Shexu Technology Co ltd
Current assignee: Shanghai Shexu Technology Co ltd
Priority date: 2021-10-27
Filing date: 2021-10-27
Publication date: 2022-01-07

Abstract

The invention provides a method and a system for quickly designing an automobile welding fixture, and relates to the technical field of mechanical design. After the initial information is processed, the method can realize the rapid design, rapid modification, refined design and rapid drawing of the scheme of the automobile welding fixture through the rapid design process of intelligently recommending, rapidly modifying and refining the design scheme until the 2D drawing is carried out, the experience requirement of designers is reduced, the design time is reduced, the design efficiency is greatly improved, and the design cost is saved.

Description

Rapid design method and system for automobile welding fixture

Technical Field

The invention relates to the technical field of mechanical design, in particular to a design method and a system of an automobile welding fixture.

Background

In the field of automobile welding clamp design, the clamp design generally goes through the processes of scheme design, multi-wheel modification, detailed design and structure locking and then 2D drawing and manufacturing. At present, a large number of designers are gathered in the welding fixture design industry, and the whole process needs the full participation of the designers with rich experience, the work repeatability is high, and the design efficiency is extremely low. Accordingly, there is a pressing need in the industry for a method and system for rapid design.

Disclosure of Invention

The invention aims to provide a method and a system for quickly designing an automobile welding fixture, so that the time of manual participation in the mechanical design process is reduced, the design efficiency is greatly improved, and the design cost is saved.

In a first aspect, the present invention provides a system for rapidly designing an automobile welding fixture, comprising: the system comprises an information integration module, a three-dimensional design scheme generation module, an interactive design module, a detailed design module and a two-dimensional drawing generation module; the information integration module is used for receiving design requirement information and integrating the design requirement information to obtain target design data; wherein the design requirement information includes: the method comprises the following steps of (1) process requirement information of an automobile welding clamp and digital-analog information of a workpiece acted by the automobile welding clamp; the three-dimensional design scheme generation module is used for determining three-dimensional structure data of the automobile welding fixture based on the target design data and the digital-analog information; the interactive design module is used for modifying the three-dimensional structure data based on the clamp geometric structure and the constraint relation in the three-dimensional structure data of the automobile welding clamp to obtain the modified three-dimensional structure data of the automobile welding clamp; the detailed design module is used for quickly realizing the functions of punching, gasket inserting and the like in the three-dimensional structure data of the automobile welding clamp based on the modified three-dimensional structure data of the automobile welding clamp to obtain the target three-dimensional structure data of the automobile welding clamp; the two-dimensional drawing generation module is used for determining a two-dimensional drawing of each part in the automobile welding fixture based on the target three-dimensional structure data and the design requirement information; and all the two-dimensional drawings of the parts are arranged based on the part assembling levels in the three-dimensional structure data, and each two-dimensional drawing of the part is marked with corresponding design requirement information.

In an optional implementation manner, the three-dimensional design scheme generation module is configured to automatically generate a three-dimensional structure and data of the welding fixture by using the target design information and the part digital-to-analog information, so as to implement a scheme recommendation function.

In an alternative embodiment, the three-dimensional design generation module comprises: the system comprises a design scheme recommending module, a three-dimensional structure fine-tuning module and a three-dimensional size fine-tuning module; the design scheme recommending module is used for determining initial three-dimensional structure data of the automobile welding fixture based on the target design data; the three-dimensional structure fine adjustment module is used for carrying out structure adjustment on the initial three-dimensional structure data based on the structure information in the digital-analog information to obtain three-dimensional structure data after structure adjustment; and the three-dimensional size fine adjustment module is used for carrying out size adjustment on the three-dimensional structure data after the structure adjustment based on the size information in the digital-analog information to obtain the three-dimensional structure data of the automobile welding fixture.

In an alternative embodiment, the interactive design module is used to modify the three-dimensional structure of the welding fixture.

In an alternative embodiment, the interactive design module is specifically configured to: according to the obtained three-dimensional structure data of the automobile welding clamp, constraints in a geometric structure in the three-dimensional structure data, such as parallel, vertical, coaxial, coplanar, coincident and the like, are included; and size constraint in the specific part, so that the three-dimensional structure data can be quickly modified, and the modified three-dimensional structure data of the automobile welding clamp can be obtained.

In an optional embodiment, the detailed design module is configured to perform modular detailed design on the rapidly modified three-dimensional structure to implement a detailed design function.

In an alternative embodiment, the refinement design module is specifically configured to: based on the modified three-dimensional structure data of the automobile welding fixture, the functions of quickly punching (through holes, blind holes, threaded holes and the like) and quickly inserting gaskets are realized on the modified three-dimensional structure data of the automobile welding fixture through a modularization technology, and the target three-dimensional structure data of the automobile welding fixture is obtained; the number and arrangement of the holes and the thickness of the gasket can be configured in a modularized mode.

In an optional embodiment, the two-dimensional drawing generation module is configured to perform drawing dismantling, drawing projection and labeling on the three-dimensional structure output by the detailed design module, so as to implement a two-dimensional drawing generation function.

In an optional embodiment, the two-dimensional drawing generation module includes: the system comprises a drawing disassembling module, a drawing projecting module and a labeling module; the disassembly module is used for splitting the target three-dimensional structure data of the automobile welding clamp based on the part assembly level in the target three-dimensional structure data of the automobile welding clamp so as to determine the three-dimensional structure data of each part in the automobile welding clamp; the projection module is used for projecting the three-dimensional structure data of the target part to obtain projection data of the target part in the direction of a target view; the target part represents any part in the automobile welding clamp; the target view direction includes: a front view direction, a top view direction and a side view direction; the labeling module is used for determining a labeling scheme of the projection data of the target part in the direction of a target view based on a historical database and the three-dimensional structure data of the target part, and labeling the projection data based on the design requirement information and the labeling scheme to obtain a two-dimensional drawing of the target part; wherein the history database comprises: historical part three-dimensional structure data and a labeling scheme of projection data of the historical parts.

In an optional implementation manner, the information integration module is configured to perform parameterization processing and fusion on the process information and the part digital-to-analog information to obtain target design information.

In an optional embodiment, the information integration module is specifically configured to: converting the digital-to-analog information into first target data; wherein the first target data comprises one of: point cloud data, mesh data, Brep data; carrying out digital conversion on the process requirement information to obtain process requirement data; and integrating the first target data and the process requirement data to obtain the target design data.

In an alternative embodiment, the three-dimensional design generation module is used for three-dimensional structure fine tuning and size fine tuning.

In an optional embodiment, the three-dimensional structure fine tuning module is specifically configured to: calculating the structure matching degree of the structure information in the digital-analog information and the initial three-dimensional structure data; judging whether the structure matching degree reaches a preset structure matching threshold value or not; and if not, adjusting the part structure in the initial three-dimensional structure data until the structure matching degree of the adjusted three-dimensional structure data and the structure information in the digital-analog information reaches the preset structure matching threshold, and taking the structure data reaching the preset structure matching threshold as the three-dimensional structure data after structure adjustment.

In an alternative embodiment, the three-dimensional fine tuning module is specifically configured to: calculating the size matching degree of the size information in the digital-analog information and the three-dimensional structure data after the structure adjustment; judging whether the size matching degree reaches a preset size matching threshold value or not; and if not, adjusting the size of the part in the three-dimensional structure data after the structure adjustment until the size matching degree of the three-dimensional structure data after the size adjustment and the size information in the digital-analog information reaches the preset size matching threshold, and taking the structure data reaching the preset size matching threshold as the three-dimensional structure data of the automobile welding clamp.

In an alternative embodiment, the projection module comprises: the feature extraction submodule is used for performing feature extraction on the three-dimensional structure data of the target part to obtain geometric feature data of the target part; a first determination submodule for determining a target view direction of the target part based on the geometric feature data; and the second determination sub-module is used for determining projection data of the target part in the target view direction based on the three-dimensional structure data of the target part and the target view direction.

In an optional embodiment, the feature extraction sub-module is specifically configured to: converting the three-dimensional structure data of the target part into second target data; wherein the second target data comprises one of: point cloud data, mesh data, Brep data; extracting a feature representation vector in the second target data; determining a part category of the target part based on the feature representation vector and a preset standard vector; and analyzing the target part by using a geometric analysis method applicable to the part category to obtain geometric characteristic data of the target part.

In an optional embodiment, the labeling module is specifically configured to: acquiring a preset drawing frame of a two-dimensional drawing; adjusting the projection data of the preset drawing frame or the target part to obtain adjusted projection data, so that the area ratio of the adjusted projection data to the preset drawing frame reaches a preset ratio, and the distances among the projection data in the main view direction, the top view direction and the side view direction are within a preset distance range; calculating the similarity between the three-dimensional structure data of the target part and the three-dimensional structure data of each historical part in the historical database, and taking the labeling scheme of the projection data of the historical part with the highest similarity as the labeling scheme of the projection data of the target part in the direction of the target view; and marking the adjusted projection data based on the design requirement information and the marking scheme to obtain the two-dimensional drawing of the target part.

In an optional embodiment, the rapid design system for automobile welding jigs further includes: an interactive modification module; the interactive modification module is used for receiving a modification instruction of a user and modifying the three-dimensional structure data of the automobile welding fixture based on the modification instruction to obtain modified three-dimensional structure data; wherein the modification instruction comprises at least one of: a part replacement instruction, a size modification instruction and a structure modification instruction.

In a second aspect, the present invention provides a method for quickly designing an automobile welding jig, where the method is applied to the system for quickly designing an automobile welding jig according to any one of the foregoing embodiments, and the method for quickly designing an automobile welding jig includes steps of design scheme recommendation, interactive modification, design refinement and 2D plotting, and specifically includes: receiving design requirement information; wherein the design requirement information includes: the method comprises the following steps of (1) process requirement information of an automobile welding clamp and digital-analog information of a workpiece acted by the automobile welding clamp; integrating the design requirement information to obtain target design data; determining three-dimensional structure data of the automobile welding fixture based on the target design data and the digital-analog information; modifying the three-dimensional structure data according to the constraint relation in the geometric structure in the three-dimensional structure data to obtain modified three-dimensional structure data of the automobile welding clamp; performing thinning design on the modified three-dimensional structure data of the automobile welding clamp to obtain target three-dimensional structure data of the automobile welding clamp; determining a two-dimensional drawing of each part in the automobile welding fixture based on the target three-dimensional structure data and the design requirement information; and all the two-dimensional drawings of the parts are arranged based on the part assembling levels in the three-dimensional structure data, and each two-dimensional drawing of the part is marked with corresponding design requirement information.

In an alternative embodiment, the design recommendation is an intelligent recommendation.

In an alternative embodiment, the interactive modification comprises: the modification is made using the fixture geometry and the constraint relationship between the structures.

In an alternative embodiment, the refined design comprises: and establishing a punching functional module and a gasket functional module in the welding fixture structure by utilizing a modularization technology.

In an alternative embodiment, the 2D map comprises: automatic drawing disassembly, drawing projection, two-dimensional drawing generation and labeling.

The invention provides a rapid design system of an automobile welding fixture, which comprises: the system comprises an information integration module, a three-dimensional design scheme generation module, an interactive design module, a detailed design module and a two-dimensional drawing generation module; the information integration module is used for receiving the design requirement information and integrating the design requirement information to obtain target design data; wherein the design requirement information includes: the process requirement information of the automobile welding clamp and the digital-analog information of the workpiece acted by the automobile welding clamp; the three-dimensional design scheme generation module is used for determining three-dimensional structure data of the automobile welding fixture based on the target design data and the digital-analog information; the interactive design module realizes rapid modification of the three-dimensional structure data based on the geometric structure and the constraint relation of the clamp in the three-dimensional data; the detailed design module quickly realizes the functions of punching and inserting a gasket in the three-dimensional structure data of the automobile welding clamp; the two-dimensional drawing generation module is used for determining a two-dimensional drawing of each part in the automobile welding fixture based on the target three-dimensional structure data and the design requirement information; the two-dimensional drawings of all parts are arranged based on the part assembling levels in the three-dimensional structure data, and the two-dimensional drawings of each part are marked with corresponding design requirement information.

The invention provides a rapid design system of an automobile welding fixture, which comprises an information integration module, a three-dimensional design scheme generation module, an interactive design module, a detailed design module and a two-dimensional drawing generation module, wherein after design requirement information is received, target design data required by the three-dimensional design scheme generation module for carrying out three-dimensional design can be obtained through the processing of the information integration module; the detailed design module quickly realizes the functions of punching, gasket insertion and the like in the three-dimensional structure data of the automobile welding clamp; the two-dimensional drawing generation module can automatically generate the two-dimensional drawing of each part in the automobile welding fixture according to the design requirement information and the target three-dimensional structure data of the automobile welding fixture, the drawings are arranged according to the part assembly levels in the three-dimensional structure data, and the drawings are respectively marked with corresponding design requirement information. The rapid design system of the automobile welding fixture can realize automatic three-dimensional design and automatic two-dimensional drawing of the automobile welding fixture, does not need participation of designers, reduces time of manual participation, greatly improves design efficiency and saves design cost.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.

FIG. 1 is a functional block diagram of a rapid design of an automobile welding fixture according to an embodiment of the present invention;

FIG. 2 is a schematic diagram of a part assembly level of an automobile welding fixture according to an embodiment of the present invention;

FIG. 3 is a flowchart of a method for designing a welding fixture for an automobile according to an embodiment of the present invention;

fig. 4 is a schematic diagram of an electronic device according to an embodiment of the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Some embodiments of the invention are described in detail below with reference to the accompanying drawings. The embodiments described below and the features of the embodiments can be combined with each other without conflict.

In the design process of the automobile welding fixture, a three-dimensional design scheme and a two-dimensional drawing need to be generated by using design software, in the prior art, the part of work is completed by designers by means of three-dimensional design software (such as CATIA, UG, Pro-E and SolidWorks), once participation of the designers is involved, design time and design efficiency are difficult to guarantee, and personnel cost is high.

In addition, each design software has a corresponding file format, for example, the three-dimensional format of a part of the CATIA has a cattarget, the format of an assembly body of the cattarget is CATProduct, the format of a two-dimensional drawing of the assembly body of the cattarget is catdragwing, and the formats can be opened only by the CATIA. The general three-dimensional digital-analog interactive format is STP, when the format is converted into the STP format, most of geometric information can be reserved, but information such as similar threaded holes and the like can be lost; the two-dimensional data representation format includes catdraw, dwg, dxf, etc., where catdraw is a proprietary format of CATIA, dwg is a proprietary format of AutoCAD, and dxf is a universal interactive format, but when other software is converted into dxf, some labeling information or characters, etc. may be processed as lines, and thus may not be edited again.

Based on the analysis, in the design process of the automobile welding fixture, different types of files need to be operated at different design stages, different design software is involved, and the conversion between different file formats has the risk of format adaptation. In view of the above, embodiments of the present invention provide a method and system for quickly designing an automobile welding fixture, so as to alleviate the above-mentioned technical problems.

Example one

Fig. 1 is a functional block diagram of a system for quickly designing an automobile welding fixture according to an embodiment of the present invention, as shown in fig. 1, the system includes: the system comprises an information integration module 100, a three-dimensional design scheme generation module 200, an interactive design module 300, a detailed design module 400 and a two-dimensional drawing generation module 500.

The information integration module 100 is configured to receive design requirement information and integrate the design requirement information to obtain target design data; wherein the design requirement information includes: the process requirement information of the automobile welding clamp and the digital-analog information of the workpiece acted by the automobile welding clamp.

The rapid design system for the automobile welding fixture provided by the embodiment of the invention can run through the whole design process of three-dimensional design and two-dimensional drawing of the automobile welding fixture, and can be divided into an information integration module 100, a three-dimensional design scheme generation module 200, an interactive design module 300, a detailed design module 400 and a two-dimensional drawing generation module 500 according to different stages of data in a data processing process.

Specifically, to carry out the design of car welding jig, need acquire the design demand information of car welding jig at first, wherein, design demand information must include: the process requirement information of the automobile welding clamp and the digital-analog information of the workpiece acted by the automobile welding clamp. The process requirement information of the automobile welding fixture is different according to different actual processes, for example, the process requirement information may be, according to different process types of the fixture: clamping, pressing, supporting, fixing pins, telescopic pins and the like.

In order to ensure the matching degree of the automobile welding fixture and the workpiece acted on the automobile welding fixture, in the embodiment of the invention, the design requirement information of the automobile welding fixture uses digital-analog information (data model information) of the workpiece acted on by the automobile welding fixture, wherein the digital-analog information comprises: structural information and size information.

According to actual design demand, the user can also add producer standard information and the like to the design demand information of automobile welding jig, if the producer standard information is not specifically limited in the design demand information, then can carry out three-dimensional design and two-dimensional map according to default naming rules and standard components, wherein, the producer standard information includes: the system comprises naming rules, an enterprise standard library and the like, wherein the naming rules represent naming rules of automobile welding fixtures or parts, and the enterprise standard library represents a database of part styles in a mechanical design scheme; because the supplier systems of different manufacturers are different, the selectable supplied parts are different in the same design scheme, the part styles used by the enterprises are also different, and the enterprise standard library can be selectively configured according to the requirements of specific manufacturers.

The information integration module 100 integrates the design requirement information of the automobile welding fixture after receiving the information, and in the embodiment of the invention, the integration is a processing process specifically of digital fusion, and target design data can be obtained according to the design requirement information.

The three-dimensional design scenario generation module 200 is configured to determine three-dimensional structural data of the automotive welding fixture based on the target design data and the digital-to-analog information.

The three-dimensional design scheme generation module 200 learns the historical three-dimensional design scheme in advance, so that the initial three-dimensional structure data of the automobile welding fixture can be determined based on the target design data of the automobile welding fixture, and then the initial three-dimensional structure data is adjusted by using the digital-analog information of the workpiece acted by the automobile welding fixture to obtain the three-dimensional structure data of the automobile welding fixture.

The interactive design module 300 is configured to rapidly modify the three-dimensional structure data of the automobile welding fixture according to the constraint relationship (including constraints of parallel, vertical, coaxial, coplanar, coincident and the like) in the geometric structure of the three-dimensional structure data and the size constraint in the specific part, so as to obtain the modified three-dimensional structure data of the automobile welding fixture.

The detailed design module 400 is used for realizing the functions of fast punching (through holes, blind holes, threaded holes and the like) and fast inserting gaskets on the modified three-dimensional structure data of the automobile welding clamp by a modularization technology based on the modified three-dimensional structure data of the automobile welding clamp to obtain the target three-dimensional structure data of the automobile welding clamp; wherein the number and arrangement of the perforations (e.g., two bolts and one pin, two bolts and two pins, etc.), and the thickness of the spacer (e.g., 3mm, 5mm, etc.) can be configured modularly.

The two-dimensional drawing generation module 500 is used for determining a two-dimensional drawing of each part in the automobile welding fixture based on the target three-dimensional structure data and the design requirement information; the two-dimensional drawings of all parts are arranged based on the part assembling levels in the target three-dimensional structure data, and the two-dimensional drawings of each part are marked with corresponding design requirement information.

The three-dimensional structure data is converted into a two-dimensional drawing, that is, the projection of each part in each view direction is displayed, generally, the two-dimensional drawings of the parts of the automobile welding fixture are arranged according to the assembly level of the parts, and each part is also marked with corresponding design requirement information, such as dimension information, tolerance information, technical requirement information and the like. After the three-dimensional structure data of the automobile welding fixture is obtained, the part assembly level of the automobile welding fixture can be extracted, namely, the subordination relation of each part in the automobile welding fixture. Fig. 2 is a schematic view of the part assembly level of an automobile welding jig, which is first divided into 3 major parts, namely, a part a, a part B and a part C, according to the example provided in fig. 2, wherein the part a can be further divided into a1, a2 and A3; the part B can be finely split into B1, B2 and B3, the part C can be finely split into C1 and C2, and the assembly hierarchical relation of parts can be improved in the process of gradually splitting the automobile welding clamp.

The invention provides a rapid design system of an automobile welding fixture, which comprises an information integration module 100, a three-dimensional design scheme generation module 200, an interactive design module 300, a refined design module 400 and a two-dimensional drawing generation module 500, wherein after design requirement information is received, target design data required by the three-dimensional design scheme generation module 200 for three-dimensional design can be obtained through the processing of the information integration module 100, after the three-dimensional design scheme generation module 200 determines the three-dimensional structure data of the automobile welding fixture, the interactive design module 300 realizes rapid modification through the constraint relation of structural parts, after the modified three-dimensional structure data is obtained, the refined design module 400 realizes the functions of rapid punching, rapid gasket installation and the like on the modified three-dimensional structure data, the two-dimensional drawing generation module 500 can automatically generate a two-dimensional drawing of each part in the automobile welding fixture according to the design requirement information and the target three-dimensional structure data of the automobile welding fixture, and the drawings are arranged according to the assembly levels of the parts in the three-dimensional structure data and are respectively marked with corresponding design requirement information. The rapid design system of the automobile welding fixture can realize automatic three-dimensional design and automatic two-dimensional drawing of the automobile welding fixture, does not need participation of designers, reduces time of manual participation, greatly improves design efficiency and saves design cost.

The above description briefly describes each functional module of the rapid design system for automobile welding jigs provided in the embodiment of the present invention, and a specific data conversion process of the system is described below.

In an optional embodiment, the information integration module 100 is specifically configured to: converting the digital-to-analog information into first target data; carrying out digital conversion on the process requirement information to obtain process requirement data; and integrating the first target data and the process requirement data to obtain target design data.

Specifically, as can be seen from the above description, the information integration module 100 plays a role of digital fusion, and since the digital-to-analog information and the process information belong to different data types, in order to fuse the digital-to-analog information and the process information, the digital-to-analog information is first converted into first target data, where the first target data includes one of the following data: point cloud data, mesh data, brep (boundary representation) data; the embodiment of the invention does not limit the specific means of digitalizing the digital-analog information, and a user can select the digital-analog information according to the actual requirement as long as the digital-analog information can be parameterized and expressed, and the digital-analog information is not limited to point cloud data, mesh data and Brep data.

Next, the process requirement information needs to be digitally represented to obtain process requirement data, for example, by using an automobile welding fixture, if the process requirement information may be: clamping, pressing, supporting, fixing pins and telescopic pins, then a 5-bit array can be set, wherein 10000 represents clamping, 01000 represents pressing, 00100 represents supporting, 00010 represents fixing pins and 00001 represents telescopic pins; or designing a 3-bit array, wherein 001 represents clamping, 010 represents pressing, 011 represents supporting, 100 represents a fixed pin, and 101 represents a telescopic pin; the embodiment of the invention does not specifically limit the technical means of digitalizing the process requirements, and a user can select the technical means according to actual requirements.

The first target data and the process requirement data are both arrays in nature, and therefore after the first target data and the process requirement data are obtained, the first target data and the process requirement data are added and fused on different channels to obtain a new array, and the new array is the target design data in the embodiment of the invention.

The method described above can be used for information integration of the design requirement information of the automobile welding fixture, and then the three-dimensional structure data of the automobile welding fixture needs to be determined by using the target design data and the digital-analog information.

In an alternative embodiment, the three-dimensional design generation module 200 includes: the system comprises a design scheme recommending module, a three-dimensional structure fine-tuning module and a three-dimensional size fine-tuning module.

The design scheme recommending module is used for determining initial three-dimensional structure data of the automobile welding fixture based on the target design data.

Specifically, the design scheme recommending module in the embodiment of the invention learns a large number of historical three-dimensional design schemes in advance through a deep learning algorithm and/or a machine learning algorithm and/or a design rule logic algorithm and the like, so that after target design data are obtained, the design scheme recommending module can determine initial three-dimensional structure data of the automobile welding fixture by using the learned knowledge, wherein the initial three-dimensional structure data comprise which parts the automobile welding fixture consists of and the assembling combination mode of each different part.

In practical application, a historical three-dimensional design scheme and corresponding design requirement information can be selected as training samples to train an initial neural network model, and after the model training is finished according to preset training requirements, the trained neural network model is used as a data processing main body of a design scheme recommending module.

In the embodiment of the invention, the structural parameters (including assembly angles, assembly gaps, assembly styles and the like) and the size parameters in the initial three-dimensional structural data determined by the design scheme recommending module are default historical scheme data, so that the initial three-dimensional structural data is required to be sequentially subjected to structural adjustment and size adjustment in order to obtain a three-dimensional design scheme meeting design requirement information.

And the three-dimensional structure fine adjustment module is used for carrying out structure adjustment on the initial three-dimensional structure data based on the structure information in the digital-analog information to obtain the three-dimensional structure data after the structure adjustment.

And the three-dimensional size fine adjustment module is used for adjusting the size of the three-dimensional structure data after the structure is adjusted based on the size information in the digital-analog information to obtain the three-dimensional structure data of the automobile welding fixture.

After the initial three-dimensional structure data are obtained, the three-dimensional structure fine adjustment module is used for carrying out coarse structure adjustment on the initial three-dimensional structure data, then the three-dimensional size fine adjustment module is used for carrying out size fine adjustment on the three-dimensional structure data after the structure adjustment, and finally the data after the size fine adjustment are used as the three-dimensional structure data of the automobile welding clamp. In the process of coarse structure adjustment, structural information in digital-to-analog information needs to be referred; in the size fine adjustment process, size information in the digifax information needs to be referred to.

In an optional embodiment, the three-dimensional structure fine-tuning module is specifically configured to: calculating the structure matching degree of the structure information in the digital-analog information and the initial three-dimensional structure data; judging whether the structure matching degree reaches a preset structure matching threshold value or not; and if not, adjusting the part structure in the initial three-dimensional structure data until the structure matching degree of the adjusted three-dimensional structure data and the structure information in the digital-analog information reaches a preset structure matching threshold, and taking the structure data reaching the preset structure matching threshold as the three-dimensional structure data after structure adjustment.

Specifically, the three-dimensional structure fine adjustment module mainly adjusts the part structure in the initial three-dimensional structure data according to the structure matching degree, so that the structure matching degree between the initial three-dimensional structure data and the structure information in the digital-analog information needs to be calculated, the assembly angle of the part is mainly concerned during structure matching, the assembly gap and the assembly style are set, a preset structure matching threshold is set, if the structure matching degree does not reach the preset structure matching threshold, the part structure is adjusted according to the structure information, after adjustment every time, the structure matching degree needs to be recalculated, and if the structure matching degree does not reach the preset structure matching threshold, re-adjustment is performed until the structure matching degree between the adjusted three-dimensional structure data and the structure information in the digital-analog information reaches the preset structure matching threshold, and then the three-dimensional structure data after structure adjustment is obtained.

Because the three-dimensional structure fine adjustment module only focuses on the structure matching degree, the structure matching degree meets the required three-dimensional structure data, and the specific size information of the three-dimensional structure data does not necessarily meet the design requirement, the size fine adjustment is required to be carried out on the three-dimensional structure data after the structure adjustment.

In an alternative embodiment, the three-dimensional fine tuning module is specifically configured to: calculating the size matching degree of the size information in the digital-analog information and the three-dimensional structure data after structure adjustment; judging whether the size matching degree reaches a preset size matching threshold value or not; and if not, adjusting the size of the part in the three-dimensional structure data after the structure is adjusted until the size matching degree of the three-dimensional structure data after the size adjustment and the size information in the digital-analog information reaches a preset size matching threshold, and taking the structure data reaching the preset size matching threshold as the three-dimensional structure data of the automobile welding clamp.

Specifically, the three-dimensional size fine adjustment module adjusts the size of the part in the three-dimensional structure data after the structure adjustment mainly according to the size matching degree, so that the size matching degree between the three-dimensional structure data after the structure adjustment and the size information in the digital-analog information is firstly calculated, the size information of the part such as the length, the width, the height, the chamfer, the fillet, the radius, the radian and the like is mainly concerned during the size matching, a preset size matching threshold value is set, if the size matching degree does not reach the preset size matching threshold value, the size of the part is adjusted according to the size information, after each adjustment, the size matching degree needs to be recalculated, if the size matching degree is not satisfied, the adjustment is carried out again until the size matching degree between the three-dimensional structure data after the adjustment and the size information in the digital-analog information reaches the preset size matching threshold value, and then the three-dimensional structure data after the size adjustment, namely, three-dimensional structure data of the automobile welding fixture. The embodiment of the invention does not specifically limit the values of the preset structure matching threshold and the preset size matching threshold, and a user can set the values according to actual requirements.

As can be seen from the above description, the three-dimensional structure fine-tuning module and the three-dimensional size fine-tuning module mainly adjust parameters in the three-dimensional structure data, and do not change the structure of the data, that is, do not change the types of the parts and the assembling and combining manner of different parts.

The interactive design module 300 obtains the three-dimensional structure data of the automobile welding fixture according to the constraint relationship in the geometric structure in the three-dimensional structure data, wherein the constraint relationship comprises parallel, vertical, coaxial, coplanar, coincident and the like; and size constraint in the specific part, so that the three-dimensional structure data can be quickly modified, and the modified three-dimensional structure data of the automobile welding clamp can be obtained.

The detailed design module 400 is used for realizing the functions of quickly punching (through holes, blind holes, threaded holes and the like) and quickly inserting gaskets on the modified three-dimensional structure data of the automobile welding clamp through a modularization technology based on the modified three-dimensional structure data of the automobile welding clamp; wherein the number and arrangement of the perforations (e.g., two bolts and one pin, two bolts and two pins, etc.), and the thickness of the spacer (e.g., 3mm, 5mm, etc.) can be configured modularly.

In the above, detailed descriptions are given to how the three-dimensional design scheme generation module 200 specifically uses the design requirement information and the target design data to obtain the three-dimensional structure data of the automobile welding fixture, and how the interactive design module 300 interacts with the function of the detailed design module 400, and a data processing procedure of the two-dimensional drawing generation module 500 is described below.

In an alternative embodiment, the two-dimensional drawing generation module 500 includes: the device comprises a drawing disassembling module, a drawing projecting module and a labeling module.

The map disassembling module is used for disassembling the three-dimensional structure data of the automobile welding clamp based on the part assembling level in the target three-dimensional structure data of the automobile welding clamp so as to determine the three-dimensional structure data of each part in the automobile welding clamp.

After the mechanical design is finished, a 2D drawing needs to be made for each part contained in the three-dimensional design scheme, so that after target three-dimensional structure data of the automobile welding fixture are obtained, part assembly levels in the target three-dimensional structure data of the automobile welding fixture need to be extracted, then the target three-dimensional structure data of the automobile welding fixture are split according to the part assembly levels, and then three-dimensional structure data of each part (minimum assembly unit) in the automobile welding fixture are obtained.

The projection module is used for carrying out projection processing on the three-dimensional structure data of the target part to obtain projection data of the target part in the direction of a target view; the target part represents any part in the automobile welding clamp; the target view direction includes: a front view direction, a top view direction and a side view direction.

In the embodiment of the present invention, after the three-dimensional structure data of the target part is obtained, the projection module performs projection processing on the three-dimensional structure data of the target part to determine projection data of the target part in a target view direction (a front view direction, a top view direction, and a side view direction), and so on, the projection data of all the parts in the target view direction can be obtained. The embodiment of the invention does not specifically limit the method for determining the projection data in the two-dimensional view directions according to the three-dimensional structure data, and a user can select the projection data according to actual requirements.

The marking module is used for determining a marking scheme of the projection data of the target part in the direction of the target view based on the historical database and the three-dimensional structure data of the target part, and marking the projection data based on the design requirement information and the marking scheme to obtain a two-dimensional drawing of the target part; wherein the history database comprises: historical part three-dimensional structure data and projection data of the historical parts.

After the projection data of all the parts in the direction of the target view are determined, before outputting a two-dimensional drawing of the part, the projection data of each part needs to be labeled, specifically, a history database is preset in the embodiment of the present invention, and the history database includes: the method comprises the steps that three-dimensional structure data of historical parts and labeling schemes of projection data of the historical parts (for example, which information, which edge, which hole and the like need to be labeled on the parts) are learned in advance by a labeling module, so that after the projection data of a target part are obtained, the labeling schemes matched with the target part are determined according to the three-dimensional structure data, then the projection data are labeled according to the determined labeling schemes by utilizing design requirement information of the parts, and by analogy, two-dimensional drawings of all labeled parts can be obtained, and the two-dimensional drawings of all the parts are arranged according to the assembly levels of the parts in the three-dimensional structure data.

In an alternative embodiment, the projection module comprises:

and the feature extraction submodule is used for extracting features of the three-dimensional structure data of the target part to obtain geometric feature data of the target part. The embodiment of the invention does not specifically limit the method for extracting the features, as long as complete geometric feature description (geometric feature data) of the target part can be obtained.

A first determining submodule for determining a target view direction of the target part based on the geometric feature data.

After obtaining the geometric feature data of the target part, synthesizing parameters such as geometric coordinates, a normal, a position and a projection, and taking a view direction containing the most feature data as a main view direction, wherein in the embodiment of the invention, the judgment standard of the main view direction comprises: the projection area is the largest, the projected geometric figure is the most complex, and the projected lines and arcs are the most; after the main view direction is determined, the corresponding side view direction and top view direction may be determined in turn.

And the second determination sub-module is used for determining projection data of the target part in the target view direction based on the three-dimensional structure data of the target part and the target view direction.

After the projection direction of the part is determined, the second determination submodule projects the three-dimensional structure data of the target part in each view direction, and then projection data of the target part in the target view direction can be obtained.

In an optional embodiment, the feature extraction sub-module is specifically configured to: converting the three-dimensional structure data of the target part into second target data; wherein the second target data comprises one of: point cloud data, mesh data, Brep data; extracting a feature representation vector in the second target data; determining the part category of the target part based on the feature representation vector and a preset standard vector; and analyzing the target part by using a geometric analysis method applicable to the part type to obtain the geometric characteristic data of the target part.

Specifically, when extracting the feature of the three-dimensional structure data of the target part, the three-dimensional structure data is first converted into second target data, for example, into an N × M array, and then, the feature expression vector in the second target data may be extracted by using an AI algorithm, for example, the feature expression vector is in an array form of 1 × 512.

Because the geometric features required to be analyzed by different types of parts are different, for example, if the parts are cylinders, 6 hole information with the same normal vector needs to be analyzed; if the part is a support, analyzing the mounting hole and the longest side information; if the part is a pressure supporting block: only the edge information needs to be parsed and no hole information needs to be parsed. Therefore, different types of parts require the use of different geometric resolution methods.

That is to say, to obtain geometric feature data of a target part and also to identify a part type of the target part, in the embodiment of the present invention, preset standard vectors of multiple part types are set, similarity comparison is performed between a feature representation vector of the target part and the preset standard vectors, a part type corresponding to the standard vector with the highest similarity is used as the part type of the target part, and finally, a geometric analysis method applied to the part type is used to analyze the target part, so as to obtain geometric feature data of the target part.

In an optional embodiment, the labeling module is specifically configured to: acquiring a preset drawing frame of a two-dimensional drawing; adjusting the projection data of a preset drawing frame or a target part to obtain adjusted projection data, so that the area proportion of the adjusted projection data and the preset drawing frame reaches a preset ratio, and the distances among the projection data in the front view direction, the top view direction and the side view direction are within a preset distance range; calculating the similarity between the three-dimensional structure data of the target part and the three-dimensional structure data of each historical part in the historical database, and taking the labeling scheme of the projection data of the historical part with the highest similarity as the labeling scheme of the projection data of the target part in the direction of the target view; and marking the adjusted projection data based on the design requirement information and the marking scheme to obtain the two-dimensional drawing of the target part.

Specifically, after the projection data of all the parts are obtained, the projection data need to be labeled according to design requirement information, and for a target part, a preset frame (that is, a frame size is preset) of a two-dimensional drawing is firstly obtained, and then the projection data or the preset frame is scaled, so that the whole frame is filled with the projection data in the target view (a front view direction, a top view direction and a side view) direction as much as possible, and the adjusted projection data is obtained. To achieve this object, the embodiment of the present invention sets a preset ratio of the projection area and a preset threshold value of the distance between the projection data in each direction. For example, the predetermined ratio of the projection area is 85%, the predetermined distance range of the distance between the projection data is 15-25 unit length (the minimum resolution length of the drawing software), after scaling adjustment, the sum of the areas of the projection data in the front view direction, the top view direction and the side view direction should not be less than 85% of the area of the predetermined frame, and the distance between the projection data in the front view direction, the top view direction and the side view direction should meet the predetermined distance range requirement.

In order to determine the labeling scheme of the target part, after the projection data of the target part in the target view direction are placed at proper positions in a drawing frame, the similarity between the three-dimensional structure data of the target part and the three-dimensional structure data of each historical part in the historical database needs to be calculated, and the labeling scheme of the projection data of the historical part with the highest similarity is used as the labeling scheme of the projection data of the target part in the target view direction. The similarity calculation is to extract feature representation vectors of three-dimensional structure data of the two parts through an algorithm, and obtain the historical part with the minimum difference through difference calculation of the feature representation vectors, so as to obtain the historical part with the highest similarity.

After the marking scheme of the target part is determined, the preset parameter items in the marking scheme are automatically filled according to the design requirement information related to the part, and the marking of the projection data is completed, so that the two-dimensional drawing of the target part is obtained, and by analogy, the two-dimensional drawing of each part in the automobile welding fixture is obtained. Generally, the automatic labeling module completes filling of text information such as dimensions, tolerances, technical requirements, title bars, detail bars and the like of parts, the information is provided by design requirement information, if the text information such as the technical requirements, the title bars, the detail bars and the like is not provided in the design requirement information, default recommendation information is used or the information is empty, and after all the information is filled, a complete 2D drawing scheme (arranged according to the assembly level of the parts) is finally output.

In summary, according to the rapid design system for the automobile welding fixture provided by the embodiment of the invention, the automatic three-dimensional design and the automatic drawing of the automobile welding fixture can be realized by using the independently designed information integration module 100, the three-dimensional design scheme generation module 200, the interactive design module 300, the detailed design module 400 and the two-dimensional drawing generation module 500, and after the design requirement information is received, the data only needs to be converted and transmitted in format according to the preset flow without participation of designers, so that the time of manual participation is reduced, the design efficiency is greatly improved, and the design cost is saved. In addition, when the rapid design system for the automobile welding fixture provided by the embodiment of the invention is used for mechanical design, the same type of file format is operated in the whole three-dimensional design and two-dimensional drawing stage, so that the risk of format adaptation among different file formats can be effectively avoided, and the user design experience is improved.

Example two

The embodiment of the invention also provides a method for quickly designing the automobile welding fixture, which is mainly applied to the system for quickly designing the automobile welding fixture provided by the embodiment of the invention, and the method for quickly designing the automobile welding fixture provided by the embodiment of the invention is specifically described below.

Fig. 3 is a flowchart of a method for quickly designing an automobile welding fixture according to an embodiment of the present invention, and as shown in fig. 3, the method specifically includes the following steps:

step S101, design requirement information is received.

Wherein the design requirement information includes: the process requirement information of the automobile welding clamp and the digital-analog information of the workpiece acted by the automobile welding clamp.

And step S102, integrating the design requirement information to obtain target design data.

And step S103, determining three-dimensional structure data of the automobile welding clamp based on the target design data and the digital-analog information.

And S104, quickly and interactively modifying the three-dimensional structure data according to the constraint relation in the geometric structure in the three-dimensional structure data to obtain the modified three-dimensional structure data of the automobile welding clamp.

And S105, quickly performing thinning design on the modified three-dimensional structure data of the automobile welding clamp to obtain target three-dimensional structure data of the automobile welding clamp.

Wherein, the detailed design comprises: punching and inserting shims.

And S106, determining a two-dimensional drawing of each part in the automobile welding fixture based on the target three-dimensional structure data and the design requirement information.

The two-dimensional drawings of all parts are arranged based on the part assembling levels in the three-dimensional structure data, and the two-dimensional drawings of each part are marked with corresponding design requirement information.

The data format conversion and data processing processes involved in the above steps have been described in detail in the first embodiment, and are not described again here. The rapid design method of the automobile welding fixture can realize automatic three-dimensional design and automatic two-dimensional drawing of the automobile welding fixture, does not need participation of designers, reduces time of manual participation, greatly improves design efficiency and saves design cost.

In an optional embodiment, in step S103, the determining the three-dimensional structure data of the automobile welding jig based on the target design data and the digital-to-analog information specifically includes the following steps:

and step S1031, determining initial three-dimensional structure data of the automobile welding clamp based on the target design data.

Step S1032, performing structure adjustment on the initial three-dimensional structure data based on the structure information in the digifax information, to obtain the three-dimensional structure data after structure adjustment.

And step S1033, carrying out size adjustment on the three-dimensional structure data after the structure adjustment based on the size information in the digital-analog information to obtain the three-dimensional structure data of the automobile welding clamp.

In an optional embodiment, in the step S106, the determining a two-dimensional drawing of each part in the automobile welding fixture based on the target three-dimensional structure data and the design requirement information specifically includes the following steps:

step S1061, splitting the target three-dimensional structure data of the automobile welding fixture based on the part assembling level in the target three-dimensional structure data of the automobile welding fixture to determine the three-dimensional structure data of each part in the automobile welding fixture.

Step S1062, carrying out projection processing on the three-dimensional structure data of the target part to obtain projection data of the target part in the direction of a target view; the target part represents any part in the automobile welding clamp; the target view direction includes: a front view direction, a top view direction and a side view direction.

Step S1063, determining a labeling scheme of the projection data of the target part in the direction of the target view based on the historical database and the three-dimensional structure data of the target part, and labeling the projection data based on the design requirement information and the labeling scheme to obtain a two-dimensional drawing of the target part; wherein the history database comprises: historical part three-dimensional structure data and projection data of the historical parts.

In an optional embodiment, the step S102 of integrating the design requirement information to obtain the target design data specifically includes the following steps:

step S1021, converting the digital-analog information into first target data; wherein the first target data comprises one of: point cloud data, mesh data, Brep data.

And step S1022, performing digital conversion on the process requirement information to obtain process requirement data.

And step S1023, integrating the first target data and the process requirement data to obtain target design data.

In an optional implementation manner, in the step S1032, performing structure adjustment on the initial three-dimensional structure data based on the structure information in the digital-to-analog information to obtain the three-dimensional structure data after structure adjustment, specifically, the method includes the following steps:

step S10321, a structure matching degree between the structure information in the digifax information and the initial three-dimensional structure data is calculated.

Step S10322, determine whether the structure matching degree reaches a preset structure matching threshold.

If not, go to step S10323; and if so, taking the structural data reaching the preset structural matching threshold value as the three-dimensional structural data after the structure adjustment.

Step S10323; and adjusting the part structure in the initial three-dimensional structure data until the structure matching degree of the adjusted three-dimensional structure data and the structure information in the digital-analog information reaches a preset structure matching threshold, and taking the structure data reaching the preset structure matching threshold as the three-dimensional structure data after structure adjustment.

In an optional implementation manner, in step S1033, the size of the three-dimensional structure data after the structure adjustment is adjusted based on the size information in the digital-to-analog information, so as to obtain the three-dimensional structure data of the automobile welding fixture, which specifically includes the following steps:

step S10331, calculating a size matching degree between the size information in the digifax information and the three-dimensional structure data after the structure adjustment.

Step S10332, it is determined whether the size matching degree reaches a preset size matching threshold.

If not, go to step S10333; and if so, taking the structural data reaching the preset size matching threshold as the three-dimensional structural data of the automobile welding fixture.

Step S10333, the sizes of the parts in the three-dimensional structure data after the structure adjustment are adjusted until the size matching degree of the three-dimensional structure data after the size adjustment and the size information in the digital-analog information reaches a preset size matching threshold, and the structure data reaching the preset size matching threshold is used as the three-dimensional structure data of the automobile welding clamp.

In an optional embodiment, in the step S1062, performing projection processing on the three-dimensional structure data of the target part to obtain projection data of the target part in the target view direction, specifically includes the following steps:

step S10621, performing feature extraction on the three-dimensional structure data of the target part to obtain geometric feature data of the target part.

Step S10622, determining a target view direction of the target part based on the geometric feature data.

In step S10623, projection data of the target part in the target view direction is determined based on the three-dimensional structure data of the target part and the target view direction.

In an optional embodiment, in step S10621, performing feature extraction on the three-dimensional structure data of the target part to obtain geometric feature data of the target part, where the method specifically includes the following steps:

converting the three-dimensional structure data of the target part into second target data; wherein the second target data comprises one of: point cloud data, mesh data, Brep data; extracting a feature representation vector in the second target data; determining the part category of the target part based on the feature representation vector and a preset standard vector; and analyzing the target part by using a geometric analysis method applicable to the part type to obtain the geometric characteristic data of the target part.

In an optional embodiment, in step S1063, determining a labeling scheme of the drawing data of the target part in the direction of the target view based on the historical database and the three-dimensional structure data of the target part, and labeling the drawing data based on the design requirement information and the labeling scheme to obtain a two-dimensional drawing of the target part, specifically including the following steps:

in step S10631, a preset drawing frame of the two-dimensional drawing is obtained.

Step S10632, adjusting the projection data of the preset drawing frame or the target part to obtain adjusted projection data, so that the area ratio of the adjusted projection data to the preset drawing frame reaches a preset ratio, and the distances between the projection data in the front view direction, the top view direction and the side view direction are within a preset distance range.

Step S10633, calculating the similarity between the three-dimensional structure data of the target part and the three-dimensional structure data of each historical part in the historical database, and taking the labeling scheme of the projection data of the historical part with the highest similarity as the labeling scheme of the projection data of the target part in the direction of the target view.

And S10634, marking the adjusted projection data based on the design requirement information and the marking scheme to obtain the two-dimensional drawing of the target part.

In an optional embodiment, the step S104 specifically includes the following steps: based on the obtained three-dimensional structure data of the automobile welding clamp, according to constraint relations in a geometric structure in the three-dimensional structure data, constraints such as parallel, vertical, coaxial, coplanar, coincident and the like are included; and size constraint in the specific part, so that the three-dimensional structure data can be quickly modified, and the modified three-dimensional structure data of the automobile welding clamp can be obtained.

In an optional embodiment, the step S105 specifically includes the following steps: based on the modified three-dimensional structure data of the automobile welding fixture, the functions of quickly punching (through holes, blind holes, threaded holes and the like) and quickly inserting gaskets are realized on the modified three-dimensional structure data of the automobile welding fixture through a modularization technology, and the target three-dimensional structure data of the automobile welding fixture is obtained; wherein the number and arrangement of the perforations (e.g., two bolts and one pin, two bolts and two pins, etc.), and the thickness of the spacer (e.g., 3mm, 5mm, etc.) can be configured modularly.

EXAMPLE III

Referring to fig. 4, an embodiment of the present invention provides an electronic device, including: a processor 60, a memory 61, a bus 62 and a communication interface 63, wherein the processor 60, the communication interface 63 and the memory 61 are connected through the bus 62; the processor 60 is arranged to execute executable modules, such as computer programs, stored in the memory 61.

The Memory 61 may include a high-speed Random Access Memory (RAM) and may also include a non-volatile Memory (non-volatile Memory), such as at least one disk Memory. The communication connection between the network element of the system and at least one other network element is realized through at least one communication interface 63 (which may be wired or wireless), and the internet, a wide area network, a local network, a metropolitan area network, and the like can be used.

The bus 62 may be an ISA bus, PCI bus, EISA bus, or the like. The bus may be divided into an address bus, a data bus, a control bus, etc. For ease of illustration, only one double-headed arrow is shown in FIG. 4, but that does not indicate only one bus or one type of bus.

The memory 61 is used for storing a program, the processor 60 executes the program after receiving an execution instruction, and the method executed by the apparatus defined by the flow process disclosed in any of the foregoing embodiments of the present invention may be applied to the processor 60, or implemented by the processor 60.

The processor 60 may be an integrated circuit chip having signal processing capabilities. In implementation, the steps of the above method may be performed by integrated logic circuits of hardware or instructions in the form of software in the processor 60. The Processor 60 may be a general-purpose Processor, and includes a Central Processing Unit (CPU), a Network Processor (NP), and the like; the device can also be a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), a Field-Programmable Gate Array (FPGA), or other Programmable logic devices, discrete Gate or transistor logic devices, discrete hardware components. The various methods, steps and logic blocks disclosed in the embodiments of the present invention may be implemented or performed. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like. The steps of the method disclosed in connection with the embodiments of the present invention may be directly implemented by a hardware decoding processor, or implemented by a combination of hardware and software modules in the decoding processor. The software module may be located in ram, flash memory, rom, prom, or eprom, registers, etc. storage media as is well known in the art. The storage medium is located in a memory 61, and the processor 60 reads the information in the memory 61 and, in combination with its hardware, performs the steps of the above method.

The computer program product of the method for quickly designing the automobile welding fixture provided by the embodiment of the invention comprises a computer readable storage medium storing nonvolatile program codes executable by a processor, wherein instructions included in the program codes can be used for executing the method in the previous method embodiment, and specific implementation can refer to the method embodiment and is not described herein again.

In addition, functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit.

The functions, if implemented in the form of software functional units and sold or used as a stand-alone product, may be stored in a non-volatile computer-readable storage medium executable by a processor. Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, which is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or the orientations or positional relationships that the products of the present invention are conventionally placed in use, and are only used for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.

Furthermore, the terms "horizontal", "vertical", "overhang" and the like do not imply that the components are required to be absolutely horizontal or overhang, but may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. The method for quickly designing the automobile welding clamp is characterized by comprising the steps of design scheme recommendation, interactive modification, detailed design and 2D (two-dimensional) drawing.

2. The method of claim 1, wherein the design recommendation is a smart recommendation.

3. The method of claim 1, wherein the interactive modification comprises: the modification is made using the fixture geometry and the constraint relationship between the structures.

4. The method of claim 1, wherein refining the design comprises: and establishing a punching functional module and a gasket functional module in the welding fixture structure by utilizing a modularization technology.

5. The method of claim 1, wherein the 2D map comprises: automatic drawing disassembly, drawing projection, two-dimensional drawing generation and labeling.

6. A rapid design system for automobile welding fixture is characterized in that the system comprises: the system comprises an information integration module, a three-dimensional design scheme generation module, an interactive design module, a detailed design module and a two-dimensional drawing generation module.

7. The system of claim 6, wherein the information integration module is configured to obtain the target design information by performing parameterization and fusion on the process information and the part digital-to-analog information.

8. The system of claim 7, wherein the three-dimensional design plan generating module is configured to automatically generate a three-dimensional structure and data of a welding fixture by using the target design information and the part digital-to-analog information, so as to implement a plan recommendation function.

9. The system of claim 6, wherein the three-dimensional design solution generation module is configured for three-dimensional structure fine tuning and dimensional fine tuning.

10. The system of claim 6, wherein the interactive design module is configured to modify a three-dimensional structure of a welding fixture.

11. The system of claim 6, wherein the detailed design module is configured to perform modular detailed design on the rapidly modified three-dimensional structure to achieve a detailed design function.

12. The system of claim 6, wherein the two-dimensional drawing generation module is configured to perform drawing disassembly, drawing projection and labeling on the three-dimensional structure output by the refinement design module, so as to implement a two-dimensional drawing generation function.