CATIA V5 Foundation Course potx

AIRBUS UK CATIA V5 Foundation Course DMS42177 Page 1 of 71 Issue 1 ANS-UG0300108 Compiled by: Kevin Burke Kevin Burke Date: 16/Apr/2003 Approved by: Date: Authorised by: Date: AIRBUS UK Ltd. All rights reserved. Foundation Course Assembly Design AIRBUS UK CATIA V5 Foundation Course DMS42177 Page 2 of 71 Issue 1 ANS-UG0300108 Contents Session 5 – The Assembly Design Workbench 4 An Introduction to the Assembly Design Workbench 5 Accessing the Assembly Design Workbench 6 An overview of the different Specification Tree Nodes 7 Different Display Modes when using CATProducts 8 Assembly Design Toolbars and Icons 11 Product Structure Tools Toolbar 12 Add New Component 13 Add New Product (CATProduct) 13 Add a New Part (CATPart) 14 Adding A Existing Component 15 Replacing a Component 16 Graphic Tree Reordering 18 Generate Numbering 18 Creating Multiple Instances of a Node 19 Renaming a Node Name 20 Defining a Multi-Instantiation 22 Saving a Newly Creating CATProduct 24 Move Operations Toolbar 25 Manipulation 25 Snap Operations 26 Explode Assembly 27 Stopping Manipulation on Clash 27 Assembly Constraints 29 Assembly Constraints Toolbar 29 Coincidence Constraint 29 Contact Constraint 31 Offset Constraint 32 Angular Constraint 34 Fix Constraint 35 Fix Together Constraint 36 Quick Constraint 37 Flexible/Rigid Sub-Assembly 37 Change Constraint 38 Reuse Pattern 38 Create a Scene 38 Assembly Operations 42 Assembly Features 42 Create Symmetry 45 An Overview of Contextual Links 47 Session 6 - Analysis 50 Accessing the Digital Mockup (DMU) Workbenches 51 Proximity Queries 52 Clash Analysis 55 Sectioning 58 AIRBUS UK CATIA V5 Foundation Course DMS42177 Page 3 of 71 Issue 1 ANS-UG0300108 Measuring Distances 65 AIRBUS UK CATIA V5 Foundation Course DMS42177 Page 4 of 71 Issue 1 ANS-UG0300108 Session 5 – The Assembly Design Workbench On completion of this session the trainee will: ♦ Be able to access the Assembly Design Workbench. ♦ Understand the Assembly Design Toolbars and Icons. ♦ Be able to create Product Specification Tree. ♦ Be able to Position and Orientate Parts within the Product. ♦ Be able to apply Assembly Constraints. ♦ Be able to create a Scene. ♦ Have an understanding of Assembly Operations. AIRBUS UK CATIA V5 Foundation Course DMS42177 Page 5 of 71 Issue 1 ANS-UG0300108 An Introduction to the Assembly Design Workbench The Assembly Design Workbench is used to bring together Parts (CATParts) into an assembly, which is known as a CATProduct document and as such contains no geometry but links to CATParts. CATProducts can also be made up of a mixture of smaller CATProducts and CATParts to form larger complex assemblies. CATProducts can be used in Kinematic simulation, Stress Analysis, Fitting Simulation, etc. The CATProduct structure is represented by the Specification Tree, which holds details of all sub-assembles and their associated parts together with their relative positions to each other. To maintain the position of the sub-assemblies and parts within the CATProduct, Assembly Constraints are used which are attached to the Specification Tree under a Constraints Node. Kinematic Mechanisms, Fitting Simulations, etc. are also attached to the tree under an Applications Node. Top level Assembly Node Sub-Assemblies Sub-Assembly Parts Graphical representation of the Assembly Assembly Constraints AIRBUS UK CATIA V5 Foundation Course DMS42177 Page 6 of 71 Issue 1 ANS-UG0300108 Accessing the Assembly Design Workbench The Assembly Design Workbench can be accessed by either Selecting Start > Mechanical Design > Assembly Design from the Start drop down menu. If a CATProduct is not active you will be prompted to create a new product by the appearance of the Part Name panel. AIRBUS UK CATIA V5 Foundation Course DMS42177 Page 7 of 71 Issue 1 ANS-UG0300108 Product Node Component Node Part Nodes An overview of the different Specification Tree Nodes There are a variety of different node types displayed in the CATProduct Specification Tree as well as the ones contain within a CATPart Specification Tree, below are the three commonly used nodes: - A Product – this node links to a CATProduct document and can be used to position and orientate it within another CATProduct. Yon can attach other nodes such as Product, Parts and Component to it. A Part – contains a link to a CATPart document and used to position and orientates the part within the CATProduct. You can not attach other nodes to a Part node. A Component – this node contains no links to external documents and can be thought of as a dummy node. You can position/orientate this node and attach other nodes to it such as Products and Parts. Here is an example of a CATProduct with three Part nodes attached and a Component node with a single Part node attached to it. Again the Specification Tree can be expanded or collapsed by selecting the ‘+’ or ‘-‘ symbol on the tree branch. You can also use the View>Tree Expansion drop down menu. AIRBUS UK CATIA V5 Foundation Course DMS42177 Page 8 of 71 Issue 1 ANS-UG0300108 Different Display Modes when using CATProducts There are two types of display modes available when viewing CATProducts: - 1. Visualisation Mode - This uses a Catia Graphical Representation or CGR format to create a visualisation of the CATParts within the Product. Only the external appearance of the component is visualised. The main advantage of using this mode is that performance of the workstation is improved by virtue of the fact that only a small amount of data is loaded into memory on the Workstation compared to using Design Mode. This is especially true on large Assemblies. The main disadvantages when Parts are in Visualisation mode are that you can not apply Assembly Constraints to them, modify any geometry or display the Parts Specification Tree. When you open an existing CATProduct you are automatically placed into Visualisation mode, the CGR files are extracted from the CATPart documents that are attached to the Product and placed in a Cache directory on the Workstation. Below is the Specification Tree for a Product when it is in Visualisation mode. Note that that Assembly Constraints have yellow exclamation symbols attached to them which indicate that the link to the relevant Features have been broken. This is normal and the link should reconnect when you switch to Design Mode. In Visualisation mode there is no means of expanding the Parts node to view the Part Specification Tree. AIRBUS UK CATIA V5 Foundation Course DMS42177 Page 9 of 71 Issue 1 ANS-UG0300108 2. The other mode is called Design Mode which allows gain access to the Part Specification Tree to edit Geometry, you can also apply constraints between Features on different Parts. As mention prevoiusly when you open an existing Product you are automatically placed in Visualisation mode. One way to enter Design mode is to select the top or root Node of the CATProduct and then use MB3 to access the contextual menu and then select the Representations tab followed by the Design Mode option. All the CATParts attached to the Product Specification tree will now be loaded into Design Mode. This also has the effect of loading the CATPart documents into the Workstations memory and on a large Assembly there may be a time delay whilst this task is performed. Once in Design mode the CATPart Specification Trees are accessible by selecting the ‘+’ symbol next to the Part node. The yellow exclamation symbol on the Constraints should now have disappeared indicating that they have successfully re-linked. You also specify which Parts are loaded into Design mode by selecting them individually on the Specification Tree and then use MB3 to load them. This may be a more preferable method when large Assemblies are concerned. AIRBUS UK CATIA V5 Foundation Course DMS42177 Page 10 of 71 Issue 1 ANS-UG0300108 Another way to load a Product into Design mode is to select the Update All icon on the button menu bar. When you first open an existing Product this icon will be yellow if you are in Visualisation mode and by selecting it all the Parts on the Specification will be loaded into Design mode and any links will be updated. The Update All Icon To switch back to Visualisation mode by using MB3 > Representations >Visualisation Mode. Note: When you add a New Part to the Specification Tree it will be automatically loaded in Design mode. Update Required N o Update Required [...]... memory This is an advanced user function and is not covered in the Foundation course This command allows different geometric representation of parts to be used As with the last command this is an advanced user function and is not covered in the Foundation course DMS42177 ANS-UG0300108 Page 18 of 71 Issue 1 AIRBUS UK CATIA V5 Foundation Course Creating Multiple Instances of a Node It is possible to create... 23 of 71 Resulting Instantiations Issue 1 AIRBUS UK CATIA V5 Foundation Course This allows Fast Multi-Instantiations to be created using the Default setting of the Multi Instantiation panel After selecting the part to be Instantiated select the icon to create the instances DMS42177 ANS-UG0300108 Page 24 of 71 Issue 1 AIRBUS UK CATIA V5 Foundation Course Saving a Newly Creating CATProduct The first... Page 32 of 71 Issue 1 AIRBUS UK CATIA V5 Foundation Course The resulting constrained Parts after the Update All button has been selected The Axis of the Holes is aligned but the two Parts do not necessarily contact each other Coincident constraint Symbol Resultant up to date Coincidence Constraint DMS42177 ANS-UG0300108 Page 33 of 71 Issue 1 AIRBUS UK CATIA V5 Foundation Course Contact Constraint Allows... origin until a Part has been inserted The Absolute Axis system (origin) of the Product is defined by the first Part or Product inserted DMS42177 ANS-UG0300108 Page 13 of 71 Issue 1 AIRBUS UK CATIA V5 Foundation Course Add a New Part (CATPart) This icon allows you to add a new CATPart to the Specification Tree On selecting this icon the Part Number panel will appear and again you must enter a valid part... currently active node Note: Using one of the Move Operations or Assembly Constraints can change the position and orientation of a new CATPart DMS42177 ANS-UG0300108 Page 14 of 71 Issue 1 AIRBUS UK CATIA V5 Foundation Course Adding A Existing Component This command is not as the name implies to add an existing Component node to the Specification, but in fact it is used to add existing CATProducts and CATParts... the File name field Clicking Open will add them to the Specification Tree and position them on the origin of the currently active node DMS42177 ANS-UG0300108 Page 15 of 71 Issue 1 AIRBUS UK CATIA V5 Foundation Course Below is an example of an existing CATProduct containing a Component node and seven Part nodes together with their associated Assembly Constraints Replacing a Component By selecting this... CATProduct or CATPart and select it using MB1 followed by clicking theOpen button to continue Select Node to be Replaced Replacement CATProduct DMS42177 ANS-UG0300108 Page 16 of 71 Issue 1 AIRBUS UK CATIA V5 Foundation Course A Replace Mode panel will appear asking you if you wish to replace all instances of the selected node with the new one If you select Yes then all occurrences of the selected node in the... will be replaced If you select No then only the selected node will be replaced The selected node will now be replaced at the same location DMS42177 ANS-UG0300108 Page 17 of 71 Issue 1 AIRBUS UK CATIA V5 Foundation Course Graphic Tree Reordering Allows you to Reorder the nodes on the Specification Tree After selecting the icon you must select a node on the tree that as other nodes attached to it A Graph...AIRBUS UK CATIA V5 Foundation Course Assembly Design Toolbars and Icons Assembly Features There are five main toolbars within the Assembly Design workbench: - Workbench Icon 1 Product Structure Tools – used to create the... displayed after repositioning A unique instance number is added to the node name on the Specification Tree to identify the new instances DMS42177 ANS-UG0300108 Page 19 of 71 Issue 1 AIRBUS UK CATIA V5 Foundation Course Renaming a Node Name There may be occasions when you will need to rename a Node name on the Specification Tree This can be done by selecting the node to be renamed using MB1 followed by . 58 AIRBUS UK CATIA V5 Foundation Course DMS42177 Page 3 of 71 Issue 1 ANS-UG0300108 Measuring Distances 65 AIRBUS UK CATIA V5 Foundation Course DMS42177. by: Date: AIRBUS UK Ltd. All rights reserved. Foundation Course Assembly Design AIRBUS UK CATIA V5 Foundation Course DMS42177 Page 2 of 71 Issue 1 ANS-UG0300108 Contents Session