Three-dimensional mechanical design refers to the process of using three-dimensional design software to carry out professional design of industrial mechanical structures. It is the foundation of a new generation of digital, virtualized and intelligent design platforms. It is an emerging design method based on flat and two-dimensional design, making the design goal more three-dimensional and more visual.
3D modeling is a professional design tool that mechanical structure designers must learn
Three-dimensional mechanical design can accurately express the design intention of technicians, which is more in line with people's thinking and design habits; It can assemble the original data for finite element analysis, so as to optimize the design of geometric shapes, and realize the integration of CAD, CAE CAPP CAM; The three-dimensional renderings of the design scheme can be obtained through the coloring and rendering functions, so that designers and decision-makers can fully and accurately understand its appearance, which is helpful for design decision-making, shortens the cycle, and accelerates product development; Ability to analyze the dynamic characteristics of products and budget the cost of engineering projects; Three-dimensional design is the basis for the integration of design and manufacturing, bringing great changes to engineering design and pushing design to unprecedented heights. The three-dimensional modeling method is to take the three-dimensional model as the standard of the whole process of the product when designing, so as to ensure that the final product is consistent with the original intention of the design, and of course, the two-dimensional drawing of the whole process is also essential.
Therefore, three-dimensional mechanical design is being more and more widely used in the machinery industry, and it is also the direction of development.
Three-dimensional mechanical design greatly shortens product design time
Specifically, it is manifested in the following points:
1) The design of parts is more convenient.
Using the 3D CAD system, you can design new parts in the assembly environment, and you can also use the position and shape of adjacent parts to design new parts, which is convenient and fast, and avoids the failure of assembly caused by designing parts separately. Part playback in the Asset Finder also animates the process of modeling parts at a glance.
2) Assembling parts is more intuitive.
During the assembly process, the assembly path finder in the Resource Finder records the assembly relationships between the parts, displays them if they are incorrect, and can also hide the parts to clearly see the internal assembly structure when the external parts are hidden. After the completion of the whole machine assembly model, the motion demonstration can also be carried out, and for those who have certain motion stroke requirements, the stroke can be checked to meet the requirements, and the design can be changed in time, so as to avoid the need to modify or even scrap after the product is produced.
3) Shorten the mechanical design cycle.
Using 3D CAD technology, the mechanical design time has been shortened by nearly 1 3, which greatly improves the design and production efficiency. When using the 3D CAD system to develop and design new machines, only some of the parts need to be redesigned and manufactured, and the design of most of the parts will inherit the previous information, so that the efficiency of mechanical design can be improved by 3 to 5 times. At the same time, the 3D CAD system has a high degree of deformation design ability, which can obtain a new mechanical product through rapid reconstruction.
4) Improve the technical content and quality of mechanical products.
Due to the integration of mechanical products and information technology, and the use of CAD CIMS to organize production, mechanical product design has a new development. 3D CAD technology adopts advanced design methods, such as optimization, finite element force analysis, virtual design of products, motion guidelines and optimization design, etc., to ensure the design quality of products. At the same time, the CNC machining means of large enterprises are perfect, and then CAD capp cam is used for mechanical parts processing, which has good consistency and ensures the quality of products.
Three major software for 3D modeling; solidworks proe ug
Commonly used software for mechanical design includes Pro Engineer, UG, SOLIDWORKS, AutoCAD, etc.
pro/engineer
It includes a number of functions in industrial design and mechanical design, as well as the management of large assemblies, functions, manufacturing, and product data management. Software is known for parameterization, is the earliest application of parametric technology, and occupies an important position in the field of current 3D modeling software. As a new standard in the field of mechanical CAD CAE and CAM today, Pro Engineer has been recognized and promoted by the industry and is one of the mainstream CAD CAE software today.
UG is a three-dimensional parametric software integrating CAD CAE CAM, which is the world's most advanced computer-aided design, analysis and manufacturing software, which is widely used in aviation, aerospace, automotive, shipbuilding, general machinery and electronics and other industrial fields. A product engineering solution that provides digital modeling and verification for the user's product design and processing process.
solidworks
Original 3D design software based on Windows system. With its easy-to-use and user-friendly interface, SOLIDWORKS fully automatically captures design intent and guides design modifications throughout the product design effort. In the assembly design of SOLIDWORKS, you can directly refer to the existing part to generate a new part.
autocad
An automatic computer-aided design software, which can be used for two-dimensional drawing and basic three-dimensional design, through which it can be automatically drawn without knowing how to program, and is widely used in civil engineering, decoration, industrial drawing, mechanical drawing, etc.