(9) Positioning on the round surface. Click the button in the Component Placement dialog box, select the Insert item in the Constraint Type column, select the cylindrical surface of the oil cup interface and the bearing cap to place the cylindrical surface of the oil cup hole, and click the OK button in the Component Placement dialog box to complete the assembly. The effect is shown in Figure 8.
5 Conclusion
With the development of 3D design, there will be no-drawing production, that is, the model designed by 3D software, not through the engineering drawings, directly processed by the data processing software, processing on the data processing equipment to produce the product. In the design process with Pro/Engineer software, some problems will occur, such as when generating 2D drawings in 3D solids, which are obtained according to the projection relationship. In the assembly design, there will be many standard parts, such as gears and bearings. Direct thread projection, such as threaded couplings and springs, does not meet the drawing rules specified in China's drawing standards, which brings visual difficulties to those who look at the pictures. The solution is to set different layers, put the actual 3D solids on a layer, and then set a specific 3D solid to make the 2D drawings generated in accordance with China's drawing standards, put on another layer, 3D. When an entity generates a 2D drawing, close the layer of an actual 3D solid so that the 2D drawing generated is in accordance with the drawing method specified in the Chinese drawing standard.
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