CATIA Training Exercises Assembly Design Fundamentals Version 5

CATIA Training Exercises Assembly Design Fundamentals Version 5 Release 10 December 2002 EDU-CAT-E-ASM-FX-V 5 R 10 Copyright DASSAULT SYSTEMES 2002 1

Table of Contents 1. Connector Assembly § § § Connector Assembly: Presentation Connector Assembly (1): Assembling Component Connector Assembly (2): Positioning Components Connector Assembly (3): Analyzing the Assembly Connector Assembly (4): Editing Part Connector Assembly (5): Working with Components 2. Vice Assembly § § § Vice Assembly: Presentation Vice Assembly (1): Creating the Structure Vice Assembly (2): Positioning Components Vice Assembly (3): Editing Parts Vice Assembly (4): Inserting Fitting Components 3. Flexible sub-assemblies § § Flexible sub-assemblies : Presentation Flexible sub-assemblies (1) : Assembling Components Flexible sub-assemblies (2) : Constrain Full Assembly Flexible sub-assemblies (3) : Change configuration Copyright DASSAULT SYSTEMES 2002 p. 3 p. 4 p. 8 p. 11 p. 14 p. 17 p. 20 p. 23 p. 24 p. 27 p. 29 p. 33 p. 36 p. 41 p. 42 p. 45 p. 47 p. 49 2

Connector Assembly : Presentation Connector Assembly (1): Assembling Components Connector Assembly (2): Positioning Components Connector Assembly (3): Analyzing the Assembly Connector Assembly (4): Editing Part Connector Assembly (5): Working with Components Copyright DASSAULT SYSTEMES 2002 3

Master Exercise : Presentation You will practice concepts learned throughout the course, by building the master exercise and following the recommended process Copyright DASSAULT SYSTEMES 2002 4

Exercise Connector Assembly: Presentation 60 mn Objectives : In this exercise you will build the Connector Assembly and modify one of its components You will use : - Product Structure Tools - Constraints - Compass - Analyze Clash - Part Design in-context of Assembly - Standard tools Copyright DASSAULT SYSTEMES 2002 This assembly will be built 5

Design Intent: Connector Assembly 2 instances of the Shell contact constraint Connector Card Assembly with fix-in-space constraint opening 2 coincidence constraints • Create and name the assembly (Connector Assembly). • Add a sub-assembly (Connector Card assembly) and two instances of the same part (Connector Shell). Assign Instance Names to the Connector Shells. • Position each Component and Set constraints between them • Analyze for interferences between the components and correct the interference by making an opening for the Connector Card Assembly. • Add two instances of a Screw. Copyright DASSAULT SYSTEMES 2002 6

Design Process: Connector Assembly 1 Create and name the assembly, insert components, duplicate the shell , assign Instance Names , and save the assembly 2 Position the components using constraints. Check for interference. 3 4 Edit the Shell by designing in -context of the assembly 5 Pattern the Screw. Copyright DASSAULT SYSTEMES 2002 7

Exercise Connector Assembly (1) : Assembling Components 15 mn In this step you create and name an assembly, insert components, duplicate the shell, assign Instance Names, and save the assembly Copyright DASSAULT SYSTEMES 2002 8

And now practice in the context of the Connector Assembly 1 2 Create and name the assembly, insert components, duplicate the shell , assign Instance Names , and save the assembly Position the components using constraints. Check for interference. 3 4 Edit the Shell by designing in -context of the assembly 5 Pattern the Screw. Copyright DASSAULT SYSTEMES 2002 9

Do It Yourself Inserted components Duplicate instance of Connector Shell 1 - Create a new CATProduct document and set the part number to be Connector Assembly. 2 - Add the Connector Card Assembly (CATASMConnector_Card_Assembly. CATProduct) sub -assembly and the Connector Shell (CATASMConnector_Shell. CATPart). 3 - Duplicate the Connector Shell component. To avoid looking for the correct folder 4 - Assign Instance Names to the Connector Shell components. where the inserted components are 5 - Save the assembly as Connector Assembly 2. CATProduct. stored, begin a Save as with the Load: Mex 1/CATASMConnector_Assembly_1. CATProduct Copyright DASSAULT SYSTEMES 2002 loaded Document , then Cancel it. 10

Exercise Connector Assembly (2) : Positioning Components 20 mn In this step you will Fix-in-Space the Connector Card Assembly and set Coincidence and Contact constraints between the Shells and the Connector Card Copyright DASSAULT SYSTEMES 2002 11

And Now Practice in the Context Of the Connector Assembly 1 2 Create and name the assembly, insert components, duplicate the shell , assign Instance Names , and save the assembly Position the components using constraints. Check for interference. 3 4 Edit the Shell by designing in -context of the assembly 5 Pattern the Screw. Copyright DASSAULT SYSTEMES 2002 12

Do It Yourself Inside Face 1 - Fix-in-space the Connector Card Assembly. 2 - Set an axial coincidence between corresponding holes of the Top Shell and the Connector Card. 3 - Set a contact between the top face of the card and the inside face of the Top Shell. 4 - Set an axial coincidence between corresponding holes of the Bottom Shell and the Connector Card. 5 - Set a contact between the underside face of the card and the inside face of the Bottom Shell. 6 - Save the assembly as Connector_Assembly 3. CATProduct. Load: Mex 2/CATASMConnector_Assembly_2. CATProduct Copyright DASSAULT SYSTEMES 2002 13

Exercise Connector Housing (3) : Analyzing the Assembly 15 mn In this step you will check for interference between the Connector Card Assembly and Connector Shells Copyright DASSAULT SYSTEMES 2002 14

And now practice in the context of the Connector Assembly 1 2 Create and name the assembly, insert components, duplicate the shell , assign Instance Names , and save the assembly Position the components using constraints. 3 Check for interference. 4 Edit the Shell by designing in -context of the assembly Copyright DASSAULT SYSTEMES 2002 5 Pattern the Screw. 15

Do It Yourself Connector Card Assembly Connector Shell 1 - Analyze for clash between the Connector Card Assembly and Connector Shells. 2 - Do not make any changes to the assembly at this time. 3 - Save the assembly as Connector Assembly 4. CATProduct for use in the next step. Load: Mex 3/CATASMConnector_Assembly_3. CATProduct Copyright DASSAULT SYSTEMES 2002 16

Exercise Connector Assembly (4) : Editing Part 30 mn In this step you will eliminate the interference between the Connector Card Assembly and Connectors Shells by editing the Connector Shell in-context of the assembly Copyright DASSAULT SYSTEMES 2002 17

And now practice in the context of the Connector Assembly 2 1 Create and name the assembly, insert components, duplicate the shell , assign Instance Names , and save the assembly Position the components using constraints. 3 Check for interference. 4 Edit the Shell by designing in-context of the assembly 5 Pattern the Screw. Copyright DASSAULT SYSTEMES 2002 18

Do It Yourself Dimensions for the pocket in the Connector Shell showing the new pocket 1 - No-show the Bottom Shell. 2 - Modify the Connector Shell to suppress the clash with the Connector Card Assembly. 3 - Save the Connector Shell as Connector Shell 5. 4 - Save the assembly as Connector Assembly 5. CATProduct. Load: Mex 4/CATASMConnector_Assembly_4. CATProduct Copyright DASSAULT SYSTEMES 2002 19

Exercise Connector Assembly (5) : Working with Components 10 mn In this step you will add and constrain a Screw and duplicate the Screw and its constraints using a pattern Copyright DASSAULT SYSTEMES 2002 20

And now practice in the context of the Connector Assembly 1 2 Create and name the assembly, insert components, duplicate the shell , assign Instance Names , and save the assembly Position the components using constraints. 3 Check for interference. 4 Edit the Shell by designing in -context of the assembly 5 Pattern the Screw. Copyright DASSAULT SYSTEMES 2002 21

Do It Yourself Screw Pattern To avoid looking for the correct folder where the inserted components are stored, begin a Save as with the loaded Document , then Cancel it. 1 - Add the Screw part. 2 - Set an axial coincidence between corresponding hole of the Top Shell and the Screw. 3 - Set a contact between the face of the Top Shell and face of the Screw. 4 - Use the rectangular pattern in the Connector Shell to duplicate the Screw 5 - Save the assembly as Connector Assembly 6. CATProduct. Load: Mex 5/CATASMConnector_Assembly_5. CATProduct Copyright DASSAULT SYSTEMES 2002 22

Vice Assembly : Presentation Vice Assembly (1): Creating the Structure Vice Assembly (2): Positioning Components Vice Assembly (3): Editing Parts Vice Assembly (4): Inserting Fitting Components from catalogs Copyright DASSAULT SYSTEMES 2002 23

Exercise Vice Assembly: Presentation 70 mm Objectives : In this exercise you will build the Vice Assembly, modify two of its components and complete the fitting by inserting components from catalogs You will use : - Product Structure Tools - Constraints - Compass - Catalog Browser - Part Design in-context of the assembly - Standard tools Copyright DASSAULT SYSTEMES 2002 This assembly will be built 24

Design Intent: Vice Assembly Fi xe d. C om po ne nt Movable Jaw Rotating. Component • Create and name the root assembly (Vice Assembly) and its sub assemblies (Rotating. Component, Fixed. Component and Axis. Assembly) • Add Components inside appropriate assemblies : - Axis and Axis Nut in Axis. Assembly - 2 nd. Static. Jaw, Static Jaw , Jaw Holder Flange (2 ones) and Movable Jaw Holder in Fixed. Component - Movable Jaw in Vice Assembly • Position the Components (constrain them as shown below) • Design holes in both jaws in order to allow fitting • Browse General. End catalog in order to find and insert fitting elements in appropriate assemblies Copyright DASSAULT SYSTEMES 2002 25

Design Process: Vice Assembly 1 Create and name the assembly, insert components, assign Instance Names, and save the assembly 2 Position the components using constraints 3 Edit both Static Jaws by designing in context of the assembly Copyright DASSAULT SYSTEMES 2002 4 Insert fitting components from catalog and instantiate and constrain them in appropriate assemblies 26

Exercise Vice Assembly (1) : Creating the Structure 15 mn In this step you create and name a root assembly and its sub -assemblies, insert components, assign Instance Names, and save all the assemblies Copyright DASSAULT SYSTEMES 2002 27

Do It Yourself New Component New Products 1 - Create a new CATProduct document, set the part number to be Vice. Assembly and save it. 2 - Create the structure above with New Product and New Component commands. 3 - Insert following parts in their destination assemblies : in Axis. Assembly : CATASMAxis. Nut + CATASMAxis in Rotating. Component : CATASMBig. Screw in Fixed. Component : CATASM 2 nd. Static. Jaw + CATASMJaw. Holder. Flange (take 2 instances of it) + CATASMMovable. Jaw. Holder + CATASMStatic. Jaw in Vice. Assembly : CATASMMovable. Jaw 4 - Set instance names of Jaw Holder Flange to “Right Flange” and “Left Flange” 5 - Save the assembly as CATASMVice. Assembly 2. CATProduct in Student. Folder. Load: Addex 1/CATASMVice. Assembly. Step 1. CATProduct Copyright DASSAULT SYSTEMES 2002 28

Exercise Vice Assembly (2) : Positioning Components 20 mn In this step you create constraints to position components relatively to each other in the correct active assemblies. Copyright DASSAULT SYSTEMES 2002 29

Do It Yourself (1/3) 1 - In Axis. Assembly , create coincidence and contact between highlighted elements 2 - In Rotating. Component , create coincidence and contact between highlighted elements and save the active assembly as “Rotating. Component 3”in Student. Folder Coincidence Contact Line Contact Load: Addex 2/CATASMVice. Assembly. Step 2. CATProduct Copyright DASSAULT SYSTEMES 2002 30

Do It Yourself (2/3) 3 - In Fixed. Component, Fix in space Movable. Jaw. Holder and constrain geometric elements as shown and save the active assembly as “Fixed. Component 3” in Student. Folder = Offsets of 0 mm with same orientation (8) = Contacts (4) Fix in space Copyright DASSAULT SYSTEMES 2002 31

Do It Yourself (3/3) 4 - In Vice. Assembly, constrain geometric elements as shown and save the active assembly as “CATASMVice. Assembly. Step 3” in Student. Folder Two contacts contact coincidence Copyright DASSAULT SYSTEMES 2002 32

Exercise Vice Assembly (3) : Editing parts 20 mn In this step you design two parts in context of the assembly in order to allow the fitting Copyright DASSAULT SYSTEMES 2002 33

Do It Yourself (1/2) 1 - Set wireframe rendering style for transparency “Pattern. Points” Sketch Concentricity 2 - In 2 nd. Static. Jaw a- create a hole (diameter = 11 mm, up to next) in the front face of the Static Jaw (a counterbored one) b- set the hole concentric to one of the holes in parts behind c- create a sketch based on the same front face(name it Pattern. Points) and draw 3 points concentric to last 3 holes in parts behind d- create a user pattern of the hole using “Pattern. Points” for the Positions and keeping specifications of the object to pattern e- save the new part under another name (CATASM 2 nd. Stativ. Jaw 4. CATPart) under Student. Folder Load: Addex 3/CATASMVice. Assembly. Step 3. CATProduct Copyright DASSAULT SYSTEMES 2002 34

Do It yourself (2/2) “Pattern. Points” Sketch Concentricity 3 - In Static. Jaw a- create a hole (diameter = 11 mm, up to next) in the front face of the Static Jaw (a counterbored one) b- get it concentric to one of the holes in parts behind c- create a sketch based on the same front face and draw 3 points concentric to last 3 holes in parts behind, rename the Sketch “Pattern. Points” d- create a user pattern of the hole using “Pattern. Points” for the Positions and keeping specifications for selected object e- save the part under another name (CATASMStatic. Jaw 4. CATPart) 4 - Set the Fixed. Component active and save it as “Fixed. Component 4. CATProduct” under Student. Folder 5 - set back the “shading with edges”rendering style Copyright DASSAULT SYSTEMES 2002 35

Exercise Vice Assembly (4) : Inserting Fitting Components 15 mn In this step you will insert fitting elements from a catalog. You will also constrain and instantiate them in their destination assemblies Copyright DASSAULT SYSTEMES 2002 36

Do It Yourself (1/4) 1 - In Fixed. Component we want to insert and instantiate screws with fitting dimensions a- To determine diameters and lengths of inserted screws, measure diameters of threaded holes and thickness that screws have to go through Note carefully the measured diameters and distances because you will need them to make queries on the end chapter of a catalog Inserted Screws Crossed thickness Load: Addex 4/CATASMVice. Assembly. Step 4. CATProduct Threaded Holes Copyright DASSAULT SYSTEMES 2002 37

Do It Yourself (2/4) b- Browse General. End. catalog to select and insert Hexagonal Socket Head Screws in Fixed. Component : make queries in chapter to get those conditions respected - diameters of selected screws must be equal to diameters of threaded holes they go into - lengths must be superior or equal to (crossed thickness +15 mm) Insert the selected screws in Fixed. Component c- Instantiate and constrain as many time as needed (reuse Pattern if possible) inserted screws Copyright DASSAULT SYSTEMES 2002 38

Do It Yourself (3/4) 2 - In Vice. Assembly we Want to insert Outer Retaining Ring that fit to the big Screw a- to determine what ring you will insert, measure the diameter of the groove Note carefully the measured diameter because you will need it to make a query on the end chapter of the catalog Diameter to measure Copyright DASSAULT SYSTEMES 2002 Groove Diameter of retaining ring 39

Do It Yourself (4/4) b- Browse General. End catalog to select and insert an Outer Retaining Ring in Vice. Assembly : select the ring in order to get this conditions respected - the Groove Diameter of the selected retaining ring must be equal to the measured diameter c- Insert the selected ring in Vice Assembly and constrain it to the Big screw coincidence contact Copyright DASSAULT SYSTEMES 2002 40

Flexible Assemblies : Presentation Flexible Assemblies (1): Assembling Components Flexible Assemblies (2): Constrain Full Assembly Flexible Assemblies (3): Change Configuration Copyright DASSAULT SYSTEMES 2002 41

Exercise Flexible Assemblies : Presentation 25 mm Objectives : In this exercise you will build the Full Assembly and use flexible /rigid sub-assemblies You will use : - Product Structure Tools - Constraints - Use flexible / Rigid sub-assemblies command to create ‘some configurations’ Copyright DASSAULT SYSTEMES 2002 42

Design Intent: Flexible Assemblies Skills needed : • Insert existing components to create a assembly • Duplicate a sub-assembly • Constraint a assembly • Making a product flexible in order to drive dimension All elements you need to complete exercise : sub-clamp. CATProduct. Clamp-pad. CATPart. Copyright DASSAULT SYSTEMES 2002 43

Design Process: Flexible Assemblies. 1 Create and name the assembly, insert components from sub-clamp. CATProduct and clamp-pad Constrain the assembly 2 3 Copyright DASSAULT SYSTEMES 2002 Change configuration of one sub-assembly 44

Exercise Flexible Assemblies (1) : Assembling Components 3 mn In this step you create and name an assembly, insert components, duplicate assembly and save the full assembly Copyright DASSAULT SYSTEMES 2002 45

Do It Yourself Create a new assembly: • Name it full-clamp • Insert components • Duplicate sub-clamp • Save it Load : sub-clamp. CATProduct clamp-pad. CATPart Copyright DASSAULT SYSTEMES 2002 46

Exercise Flexible Assemblies (2) : Constrain Full Assembly 15 mn In this step you constrain full-clamp Copyright DASSAULT SYSTEMES 2002 47

Do It Yourself Constrain the full assembly in design intent: Fix in-space clamp-pad Set surface-contact constraints following the picture Set axial coincidence and points coincidence. Copyright DASSAULT SYSTEMES 2002 48

Exercise Flexible Assemblies (3) : Change configuration 7 mn In this step with flexible/Rigid command, you simulate two configurations for sub-clamp assembly - First configuration: ’Open’ (value=60 mm) - Second configuration: ’Close’ (value=72. 7 mm) Copyright DASSAULT SYSTEMES 2002 49

Do It Yourself 1. 2. Make flexible one instance of sub-clamp Edit and change numerical value of the offset constraint Measure the distance to obtain the ‘Close’ configuration Load : full-clamp. CATProduct Copyright DASSAULT SYSTEMES 2002 50