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Assembly Design
Overview Conventions
What's New?
Getting Started Entering Assembly Design Workbench and Opening a CATProduct Document Fixing a Component Inserting an Existing Component Setting Constraints Between Components Moving Constrained Components Using the Compass Adding and Renaming a New Component Designing a Part in an Assembly Context Editing a Parameter Replacing a Component Analyzing Assembly Constraints Reconnecting a Broken Constraint Detecting Clashes Editing a Component Displaying the Bill of Material Exploding the Assembly
User Tasks
Creating an Assembly Document Updating an Assembly Analyzing an Assembly Computing a Clash Computing a Clearance Analyzing Constraints Analyzing Dependencies Analyzing Updates Analyzing Degrees of Freedom Defining a Multi-Instantiation Fast Multi-Instantiation Inserting an Existing Component with Positioning Managing Constraints Managing Coincidence Constraint Creating a Contact Constraint Creating an Offset Constraint Creating an Angle Constraint Fixing a Component Fixing Components Together Using the Quick Constraint Command Changing Constraints
Deactivating or Activating Constraints Selecting the Constraints of Given Components Editing Constraints Updating One Constraint Only Modifying the Properties of a Constraint Setting a Constraint Creation Mode Inconsistent or Overconstrained Assembly Searching for URLs Associated with Constraints Reordering Constraints in the Specification Tree Refreshing Constraints Moving Components Translating Components Rotating Components Manipulating Components Snapping Components Smart Move Smart Move with Viewer Exploding a Constrained Assembly Stop Manipulation on Clash Using Assembly Tools Managing Products in an Assembly Publishing Elements Using a Standard Part Contained in a Parametric Catalog Modifying a Parametric Standard Part Contained in a Catalog Creating Annotations Creating Weld Features Creating a Text With Leader Creating a Flag Note With Leader Annotation Planes Using a View/Annotation Plane Creating a Front View Creating a Section View/Annotation Plane Creating a Section Cut View/Annotation Plane Detecting Clashes Detecting Interferences Reading Clash Command Results Viewing Results in a Dedicated Window Export Clash Results Sectioning About Sectioning Creating Section Planes Creating 3D Section Cuts Manipulating Planes Directly Positioning Planes On a Geometric Target Positioning Planes Using the Edit Position and Dimensions Command More About the Section Viewer Measuring Minimum Distances Improving Performances Generating CATPart from Product Displaying the Assembly Mass Properties Modifying an Assembly
Move Toolbar Update Toolbar Constraints Toolbar Assembly Features Toolbar Annotations Toolbar Space Analysis Toolbar Scenes Toolbar User Selection Filter Toolbar Miscellaneous Symbols Product Structure Symbols Symbols Reflecting an Incident in the Geometry Building Referenced Geometry
Customizing
General Constraints DMU Sectioning Symbols Tolerancing Display Manipulators Annotation View Annotation Plane Cache Management for CATProduct and CATProcess Document Cgr Management for 3D Annotation Cgr Management for Density Loading of Referenced Document
Reference Information Assembly Update Constraints About Assembly Constraints Coincidence Constraints Contact Constraints Offset Constraints Angle Constraints Design in Assembly Context Assembly Features Batches and Macros Data Upgrade for Large Assemblies Performances About Interference Analysis
Glossary
Index
Overview
Welcome to the Assembly Design User's Guide! This guide is intended for users who need to become quickly familiar with the product.
This overview provides the following information:
l Assembly Design in a Nutshell l Before Reading this Guide
l Getting the Most Out of this Guide l Accessing Sample Documents l Conventions Used in this Guide
Assembly Design in a Nutshell
Assembly Design allows the design of assemblies with an intuitive and flexible user interface.
As a scalable workbench, Assembly Design can be cooperatively used with other current companion products such as Part Design and Generative Drafting. The widest application portfolio in the industry is also accessible through interoperability with Solutions Version 4 to enable support of the full product development process from initial concept to product in operation. Digital Mock-Up (DMU) Navigator inspection capabilities can also be used to review and check your assemblies. Interactive, variable-speed techniques such as walk-through and fly as well as other viewing tools let you visually navigate through large assemblies.
The Assembly Design User's Guide has been designed to show you how to create an assembly starting from scratch. This book aims at illustrating the several stages of creation you may encounter.
Before Reading this Guide
Before reading this guide, you should be familiar with basic Version 5 concepts such as document windows, standard and view toolbars. Therefore, we recommend that you read the Infrastructure User's Guide that describes generic capabilities common to all Version 5 products. It also describes the general layout of V5 and the interoperability between workbenches.
You may also like to read the following complementary product guides, for which the appropriate license is required:
l Product Structure l Part Design l Generative Drafting
Conventions
Certain conventions are used in CATIA, ENOVIA & DELMIA documentation to help you recognize and understand important concepts and specifications.
Graphic Conventions
The three categories of graphic conventions used are as follows:
l Graphic conventions structuring the tasks l Graphic conventions indicating the configuration required l Graphic conventions used in the table of contents
Graphic Conventions Structuring the Tasks
Graphic conventions structuring the tasks are denoted as follows:
This icon... Identifies... estimated time to accomplish a task
a target of a task
the prerequisites
the start of the scenario
a tip
a warning
information
basic concepts
methodology
reference information
information regarding settings, customization, etc.
the end of a task
functionalities that are new or enhanced with this release
allows you to switch back to the full-window viewing mode
Graphic Conventions Indicating the Configuration Required
Graphic conventions indicating the configuration required are denoted as follows:
This icon... Indicates functions that are...
specific to the P1 configuration
specific to the P2 configuration
specific to the P3 configuration
Graphic Conventions Used in the Table of Contents
Graphic conventions used in the table of contents are denoted as follows:
This icon... Gives access to... Site Map
Split View Mode
What's New?
Overview
Getting Started
Basic Tasks
User Tasks or Advanced Tasks
Interoperability
Workbench Description
Customizing
Administration Tasks
Reference
Methodology
Frequently Asked Questions
What's New?
No enhancements in this release.
Getting Started
If in Sketcher and Part Design you generated parts, now will learn how to finish your design by assembling parts in Assembly Design workbench. Before we discuss the detailed instructions for using the Assembly workbench, the following scenario aims at giving you a feel for what you can do with an Assembly document. You just need to follow the instructions as you progress.
The Getting Started section is composed of the following tasks:
This scenario should take about 15 minutes to complete.
Eventually, the assembly will look like this:
l make sure the option Work with the cache system is deactivated: use the Tools -> Options command, click Infrastructure -> Product Structure to the left of the dialog box that appears and uncheck the option Work with the cache system. Do not forget to restart the application after turning off the cache. For more information, refer to Working with a Cache System. l use the Tools -> Options command, click Infrastructure -> Product Structure to the left of the dialog box that appears, then click the Product Structure tab and uncheck the option Manual Input. For more information, refer to Customizing Product Structure Settings. l use the Tools -> Options command, click Infrastructure ->Part Infrastructure to the left of the dialog box that appears, then check the option Keep link with selected Object. For more information, refer to Customizing General Settings.
Note also that the default mode for the Update capability is "manual". For the purposes of this scenario, set the automatic mode.
3. Open the Assembly_01.CATProduct document.
You will start the scenario with an existing assembly. Product1 is composed of three parts created in the Part Design Workbench:
l CRIC_FRAME (in turquoise) l CRIC_BRANCH_3 (in blue) l CRIC_BRANCH_1 (in red)
From now on, these parts will be referred to as components
Surface and Coincidence constraints have been defined for these parts in the Assembly workbench.
4. Click the + sign to the left of the Constraints text in the tree and apply the show mode on these constraints if you wish to
view them in the geometry area.
Fixing a Component
This task shows you how to set the first constraint. This operation consists in fixing the position of a component in space so as to use this component as the base of the assembly.
1. Select CRIC_FRAME in the specification tree or in the geometry area.
Click the Fix Component icon in the Constraints toolbar.
The component CRIC_FRAME is immediately fixed. The application indicates this by displaying a green anchor symbol on the component.
Note also that the Constraints branch now displays the new constraint. The anchor symbol is preceded by a lock symbol, to make a distinction between "fix in space" and "fix operations". For more information, pleaser refer to Fixing a Component.
This is the component you have just imported:
To know the different document types you can insert in a CATProduct document, refer to Product
Structure documentation. However, to know how to insert .asm documents properly, refer to
Opening a .asm Document.
Setting Constraints Between Components
This task consists in setting a coincidence constraint, then a contact constraint between the component you have just inserted (Sub_Product1) and CRIC_BRANCH_1.
1. Click the Coincidence icon:
A message window appears, providing information on the coincidence constraint command. If you do not want to see this dialog box appear any more, check Do not prompt in the future.
2. Select Axis publication in the specification tree.
The application detects it once selected. The axis is now highlighted in the geometry.
3. Select one of the two inner faces of CRIC_BRANCH_1 to select the associated axis.
6. Select the red circular face in the direction opposite to the published face.
As the contact constraint is created, the turquoise cylinder is located exactly on the red face.
The created constraints are automatically updated because the automatic update mode is activated. As the color defining valid constraints is green, our constraints are green. The application allows you to customize constraint colors as explained in Customizing Constraint Appearance.
The assembly now looks like this:
