The impeller is a key component of the engine. Because the closed impeller is integrally formed with the blade and the blade, its design and manufacturing requirements are quite high, its geometric structure is complex, and the CAD design and development cycle is long, which brings great difficulty to the actual work. How can I shorten the design cycle of closed impellers? Many design engineers have asked Xiaobian to provide solutions to this problem. The following small series uses the well-known CAD/CAM software in China to look at 3D as an example to explain how to quickly model the closed impeller 3D CAD entities and shorten the design cycle.
Closed impeller rendering
The precise geometric solid shape of the impeller is a necessary premise for the impeller machining. As the performance requirements of the engine are improved, the shape of the rotor is more complicated. It is more and more important to study the overall 3D CAD modeling. The rapid modeling is mainly divided into three entities. : Impeller upper cover creation, impeller base creation, blade base creation, compared with other software , Zhongwang 3D's unique hybrid modeling can more easily and flexibly meet the needs of curve and surface modeling, and the operation is more smooth.
1. Impeller cover creation
First, draw the shape of the impeller shape with the sketch of Zhongwang 3D, and use the rotation function to create the modeling base with the X axis as the rotation axis.
2. Creation of the impeller base
The outline of the impeller is sketched, and the rotation function is used to generate the modeling base with the X axis as the rotation axis.
3. Creation of blade matrix
a. Create a datum plane with Zhongwang 3D. Use the Intersect Curve command to create an intersection curve between the datum plane and the inner cylindrical surface of the top cover.
b. Use the point on the curve command to create 8 points with the curve made in the previous step.
c. Create the 8 aliquots of the impeller base in the same way.
d. Make a curve that builds the surface based on the points created. Use the Stakeout command to make a curve that builds the surface based on the curve you created.
e. Create a blade solid using the Shell command based on the created surface.
f. Use the array command array blades according to the creation of the blade.
g. Add all features using the summation command.
At this point, after several solid parts are created, the closed blade is completed, as shown below.
Zhongwang 3D 3D solid modeling closed blade
Through the above demonstration, it can be known that the hybrid modeling function of Zhongwang 3D can quickly meet the curve and surface modeling requirements in the design process, and the 3D CAD solid modeling for the structural characteristics of the impeller parts is beneficial to the more vivid image. The visual observation of the designed workpiece greatly reduces the waste in actual production and processing, reduces the design cycle and reduces the production cost. It is worth noting that Zhongwang 3D 2013 has added the function of direct output to “3D Printer†(Print3D), which allows users to interact with 3D printer conveniently and quickly. Automatic output and fast printing greatly saves the production cost of the enterprise. The closed blade drawing of this article can be downloaded for free (http://?tid=10868&extra=)
Zhongwang 3D 3D CAD/CAM Free Download
Zhongwang 3D is the preferred brand of 3D CAD/CAM software for military enterprises recommended by the Ministry of Industry and Information Technology, providing enterprises with cost-effective 3D CAD/CAM legal solutions, modeling, mold, assembly, reverse engineering, sheet metal, 2-5 axis machining. And other functional modules are available. It is highly efficient and compatible with other 3D CAD software , easy to learn and use, and integrated with a rich library of parts, making 3D design/machining easier. In order to improve the competitiveness of customers, Zhongwang 3D and micro network vx.com provide professional 3D printing services and training sessions. Welcome to download free (), hotline: 4008-336-663.
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