Mechanical CAD / CAM ReportPro / E with the modeling of the assembly relationshipCollege：Mechanical and Electrical CollegeMajor: Mechanical design and manufacture of brakeClass：Name: 聂俊杰Student ID：Expect score:92May 2012Contents1. Pro / E Introduction .12. Modeling of the bearing.32.1. Cage modeling .32.2 Bearing inner ring.82.3 Bearing outer ring.92.4 Ball bearings.102.5 Bearing assembly.113. Modeling of the shaft.144. Modeling of the gear .155. General assembly.1911. Pro / E IntroductionPro / Engineer operating software is Parametric Technology Corporation (PTC) for its three-dimensional CAD / CAM / CAE integration software. The Pro / Engineer software for parameterization parameter technology the earliest application by the current three-dimensional modeling software, possession with an important position of Pro / Engineer as a new standard for todays world machinery of CAD / of CAE / the CAM fields and get the industry recognition and promotion. Is now one of the mainstream CAD / CAM / CAE software, in particular, occupy an important position in the domestic field of product design.Pro / E first proposed the concept of parametric design, and uses a single database to solve the problem characteristics. In addition, it uses a modular approach, users can choose according to their needs, without having to install all the modules. Pro / E based on feature, the ability to design to production to the whole process of integration, concurrent engineering design. It can not only applied to workstations, but can also be applied to a single machine.Pro / E uses a module, can sketch, parts production, assembly design, sheet metal design, processing, and ensure that the user can choose to use according to their needs.1A parameter of the designRelative to the products, we can see it as the geometric model, no matter how complex the geometry model can be decomposed into the composition of the limited number of characteristics, of each characteristic can be fully constrained with limited parameters, whichparameters of the basic concept.2. Feature-based modelingPro / E is a feature-based solid modeling system, the engineering staff with intelligent features of the model generated based on the characteristic function of cavity, shell, chamfered and rounded corners, you can freely sketching, and easily change the model. This features provide engineering designers never had the design simple and flexible.3. A single database (all related)Pro / Engineer is to establish the database on the unified grass-roots, unlike some of the traditional CAD / CAM system is built on multiple databases. The so-2called single database, project information from a library in a product modeling work makes each individual user, whether he is what a department. In other words, changes occur in any one of the design process as a whole, and also before and after the reaction on the relevant link in the entire design process. For example, once the engineering detail change, NC (NC) tool path is automatically updated; assembly drawings any changes, exactly the same reaction in the three-dimensional model. This unique data structure and engineering design complete combination of a product designed to combine. This advantage, making the design more optimized, higher quality finished product to better market, the price is cheaper.32. Modeling of the bearingBearing modeling, including modeling of the cage, the modeling of the bearing inner ring, the bearing outer ring of the modeling and the modeling of ball bearings.2.1. Cage modelingOpen the proe / E election with the new parts of New command;1. Selected stretch command reference plane select the top plane to draw the sketch shown in Figure 2-1;2. Figure2-1 Grass Figure is completed, enter the stretch depth of 30 to complete the stretch. Get such as Figure2-2 as shown in Figure-shaped.Figure2-143. Select the rotate command, the reference plane select the top plane, draw Figure2-3 grass shown in Figure.4. Figure2-3 grass Figure drawing is complete, enter the rotation angle of 180 degrees to complete the rotation, to get such Figure2-4 as shown in Figure-shaped.Figure2-2Figure2-355. First select the shape of the rotation of Figure, and then select the axis of the array command array. Input angle of 36 degrees, the number 10, complete the array. Then select the Rotate command, the reference plane select the top plane, draw the Figure2-5, such as grass Figure. Have been completed such as Figure2-5 Figure-shaped.6. Completed the Figure2-5 grass Figure drawing, select this rotation axis array of array command input angle of 36 degrees, the number 10, complete the ar