Rapid design method of product structure based on Pro/E (2)
5 array table
With the array table, the position of the instance can be controlled by creating an absolute size for the same reference as a guide. You can enter dimensions in tabular form and edit the dimensions of each instance individually. Individual instances can be removed from the array by removing the entry from the table. This approach has greater flexibility because more complex instance combinations can be created with unequal or irregular sizes. Array tables should be considered for use in the following situations.
(1) The incremental size control array cannot be used because it is too complicated or irregular.
(2) The design intent requires that each instance be located for the same reference, rather than incrementally positioning the previous instance.
(3) Multiple models must share the same array.
(4) Multiple array forms need to be created for different variations of the model.
To create an array with an array table, the general steps are: Feature → Pattern → Select Features to Array → Table → Select Drive Size → Done → Add / Read ) Array table. It is also possible to convert a size-driven array into an array-driven array. The general steps are: Feature→Redefine→Select an Array Feature→Pattern→ To Table→Input Array List name → Done/Return. The array will now be driven by the array table, and Pro/ENGINEER automatically changes the labeling scheme to make it non-incremental. You can edit the array table using Modify→Pattern Table.
6 <br> <br> part family when we want to create a series of very similar parts, part family can take advantage of the setup is complete. When setting up a part family, you must first create a reference part, which is called the Generic Model here, and then set the part family form, and the part produced by the Generic Model is called Instance. The specific steps are: Family Tab → insert a new instance in the selected row → add / delete table columns → define a changeable size or define a selective feature.
7 feature library
User-Defined Feature is a feature group used to copy the same shape. It requires us to define some features that are often used in product design as UDFs according to the characteristics of the company's own products. It is convenient to be called in future product design, which greatly improves the speed of product development and design. The completion of the UDF feature is generally divided into two steps. The first is the establishment and definition of the UDF. The steps are: Feature→UDF Library→Creature→Enter UDF Name→Select UDF Property(Stand Alone / Subordinate ) → Select the feature to be added to the UDF → the reference prompt when the input feature is placed → define Var Elements or Var Dims as needed; the second is the placement of the UDF, the steps are: Feature → Creature →User Defined→Select the UDF file name to be placed→Specify the placement option (Independent/UDF Driven)→Specify the Scale and specify the display options→ Follow the prompts to select the placed reference.
8 Feature library with part families
This is a comprehensive application of two advanced command part families and feature libraries. In the process of building the feature library, we sometimes find UDFs used in a series of products, but the size and number of features are slightly different, and the shapes are exactly the same. At this time, it is very convenient to use the part family when defining the UDF. . The process of establishing it is similar to the process of establishing the feature library described above, except that after the elements in the feature definition dialog are all defined, select the option Family Table→Define, and then according to the above description. The method of defining the part family is done. When placing a UDF, after selecting the UDF file name, the Instance option will appear, let us choose the Instance to be placed.
9 Copying of features in the same model
In the process of creating the model, sometimes the subsequent feature shape is exactly the same as the previous feature, except that the individual dimensions and references of the feature are slightly different, so we can copy in the same model. The establishment process is: Feature→Copy→Same Refs→Independent/Dependent→Select the feature to be copied→Define the size to be modified. If you select New Ref, you can redefine the related faces of the copied features, reference faces, dimension references, and so on. In addition, we can also copy features on the same model but on different file storage versions, ie select From Dif Vers (different versions) when copying features, the build process is somewhat similar to the replication of the different model features described below.
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