· Creating Assemblies
· We will
· Place components in an assembly
· Control component color
· Add assembly constraints
· Analyze degrees of freedom
· Create and work with Design View representations
· Start New Assembly File
· Close open files
· New > Projects > Tutorial Files
· Double-click Standard (mm).iam template icon (page 2)
· Assembly Environment
· Place Components
· Create Components
· Add Assembly Constraints
· Create Adaptive Designs
· Panel Bar has Assembly Tools (page 3)
· Assembly Process Overview
· We will
· Set up workplace
· Place three external parts in the new assembly file
· Change the color of the components to make it easier to work with them (page 4)
· Overview
· After components are placed
· Constrain the components
· Examine remaining degrees of freedom
· Add more constraints to restrict all movement
· Save a Design View representation to return to later (page 5)
· Place First Component
· Click Place Component Tool
· In Open dialog double-click body1.ipt
· The body shows up at 0,0,0 and another is ready to be placed elsewhere
· Right-click in graphics window and select Done
· Assembly is a simple valve
· First component placed is fixed or grounded
· Other components have positions relative to it
· So, logically select the first or base component to create assemblies that are predictable (page 6)
· View Manipulation
· Click Rotate tool and view body diagonally across screen
· Press spacebar to activate Common View tool
· Ckick green direction arrow to reorient the view
· Right-click and select Redefine Isometric
· Press Esc
· Note: Redefine Isometric is dimmed sometimes?
· F6 function key is assigned to Isometric View or use Customize dialog to drag description to a toolbar
· Or right-click and select Isometric View (page 7)
· Add Other Components
· Click Place Component
· Double-click nozzle1.ipt
· Click to place near body
· Right-click and Done
· Repeat for knob1.ipt (page 8)
· Save File
· File > Save Copy As > my_valve.iam
· Click Save
· Now, we're ready to begin assembling and examine relationships between components (page 9)
· Assemble Components
· Apply constraints to build assembly
· Check for remaining degrees of freedom as we assemble
· Remove degrees of freedom to fully constrain assembly model
· See Adaptive Parts Tutorial (end of page 10)
· Colors
· Any changes here will not affect original component files
· Changing color only affects appearance
· To change material edit part
· Format > Styles Editor
· Expand Material node
· Right-click a material and select Active
· Click Done (page 11)
· Rotate Components Individually
· Click Rotate Component tool
· Click nozzle
· Rotate nozzle approximately in line with body
· Right-click and pick Done (page 12)
· Mate nozzle to body
· Click Constraint tool
· Click nozzle axis
· Click body's major axis
· Click OK
· Walla!
· If nozzle is hidden inside body click and drag out
· Any part can be dragged successfully if it is underconstrained
· Controlling Viewpoint
· Zoom in and out with wheel or use Zoom tool
· Rotate with Rotate tool
· Common View has
· 12 standard or plan views
· 8 common isometric views
· Rotate Component
· Select knob
· Rotate to align approximately with its housing on body
· Note: Constraints can be applied without above type rotations
· Rotate view 180 so knob is up front (page 14)
· Insert Knob into Body
· Click Constraint tool
· Select Insert in dialog
· Select inner edge of hole
· Rotate view (page 15)
· To select knob face closest to handle extrusion
· Do not select tangent edges of adjacent fillet (don't see weld)
· Click OK
· The knob gets inserted into hole
· (My note: Constraint tool worked easy when axes of knob and hole were constrained, however this is not what we want. We want faces to be flush) (page 16)
· Using DOF (degrees of freedom)
· We will look at remaining degrees of freedom
· View > Degrees of Freedom
· Rotate view to have nozzle up front
· A DOF symbol is seen on nozzle face
· Drag nozzle
· Nozzle rotates about axis and can move along axis (page 17)
· Examine Knob
· It too has DOF symbol
· Knob only rotates about its axis
· View > DOF again to turn off DOF symbols (page 18)
· DOF Notes
· Constrained component moves within remaining degrees of freedom
· Unconstrained parts move freely
· Parts with constraints honor them
· Components without constraints move wherever they are placed
· Prepare to add more constraints
· Turn knob visibility off
· Rotate to view nozzle clevis and inside face of hole (page 19)
· Create Angle Constraint
· Click Place Constraint tool
· Click Angle tool in dialog box
· Select face of hole
· Select outside face of the nozzle clevis
· Nozzle rotates to align with face of hole (page 20)
· Create a Flush Constraint
· To fully constrain nozzle to body
· Place Constraint dialog > Mate as active constraint type
· In Solution area select Flush as type of Mate to take place
· Select nozzle face
· Select outside face of body
· Click OK to apply constraint and close dialog box (page 21)
· Create Another Angle Constraint
· Right-click knob1:1 > Visibility
· Rotate view to knob being at far side and away from us
· Drag knob to rotate with handle pointing up
· Add angle constraint of 0 degrees between front face of knob handle and front face of body
· Assembly is fully constrained (page 22)
· Create Design View Representation
· (See Adaptive Parts tutorial) (end of page 23)
· Working with Design View Representations
· If the representation had hidden parts they are hidden when returning to it (page 24)
· Summary
· We have learned
· Place components in assembly
· Control component color
· Add assembly constraints
· Analyze degrees of freedom
· Create and work with Design View representations
Creating Adaptive Parts in an Assembly