The parametric feature modeling function in INVENTOR can be said to be 100% successful when dealing with the entities obtained by the cutting method, even if it contains quite complicated shapes and sizes. For casting parts with a large number of transition fillets and draft angles, there is also a satisfactory success rate. In short, it is perfect for medium-complexity part modeling and full-size driving. For more complex surface design expressions and product styling, the surface module in INVENTOR has quite a great function, and the engineering designer finally has a really powerful assistant.
For the analysis of the spatial motion and dynamics of the component mechanism, after completing the concept of 3D design, the relevant professional application software can be loaded in INVENTOR, and the operation and results are similar to the AutoCAD user interface we are familiar with. For stress-strain analysis, we also combine finite element analysis software such as (Dynamic Designer, Visual Nastran FEA) to perform complete kinematics and dynamics simulations of complex mechanical systems. Ability to calculate the motion of mechanical system components, including displacement, velocity, acceleration and force and reaction forces, as well as strength and structural analysis of mountain parts.
Since INVENTOR is characterized by parametric 3D feature modeling as design data, it provides unique conditions for the analysis and processing of CNC machining. At present, there are many kinds of CAM software developed based on INVENTOR, such as from 2D to 3D roughing, semi-finishing to final finishing, from tool path trajectory generation to numerical control (NC) code conversion, which is very smooth: processing speed It is also quite fast.
INVENTOR also has unique features for the design update and modification. The 3D modeling module in NIVENTOR is originally a 3D parametric modeling system. For example, the size modification can be modified on the 3D model, or can be modified on the related 2D drawing, and then the 3D model and the 2D related drawings are regenerated. For the design of the next process management, this can only be done by the Chinese themselves, because our design habits and management requirements are different from those of foreign countries. At present, there are some excellent software and solutions in China, such as (Morrowsoft, CAXA) collaborative management solution, through the application of modern information management tools such as OA, ERP, etc., will greatly improve the enterprise resource allocation and production process management capabilities.
Fourth, some considerations on the application of 3D CAD technology
1. Mastering and using 3D design software is difficult
According to the author's experience, high-school students are young, learn fast but not used well; most engineers who are experienced in the enterprise do not adapt to the design concept of 3D concept. They use parallel orthographic projection to express 3D entities. Deep-rooted. Before learning 3D design software, it is the first problem for high vocational students to solve basic knowledge and technical preparation.
2. The level and experience of the teacher is not enough. This may be the most deadly problem in teaching.
Compared with 2D graphics processing, 3D design needs more training. Many students use AutoCAD to draw 2D graphics, but when they enter 3D design, they feel quite unfamiliar in terms of concept and modeling skills. Higher vocational colleges should increase their investment in the training of teachers, so that they can become "double-type" as soon as possible.
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