Presentation11 - Copy

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Lecture 2 Part design (solid modeling )

description

part modelling

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Lecture 2 Part design (solid modeling )

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REFERENCE ELEMENTS• No mass and volume• Used only to assist you in the creation of the models

• Invoke the tools to create reference elements using the Reference Elements toolbar

The Reference Elements toolbar

Reference Planes• Default Planes

-xy plane -yz plane -zx plane

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Creating New PlanesToolbar: Reference Elements > Plane

The Plane Definition dialog box

• Creating a Plane at an Offset from an Existing Plane/Planar Face

• Creating a Plane Parallel to an Existing Plane and Passing through a Point

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Part Design

• Base Features

– Pad – Pocket– Shaft

• Reference Elements

– Point– Line– Plane

• Dress-up Features

– Fillets– Chamfers

• Transformation Features

– Translation– Rotation– Mirror– Pattern– Scale

Slot Hole Groove

Draft Shell Thickness

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CREATING BASE FEATURES BY EXTRUSIONMenu: Insert > Sketch-Based Features > PadToolbar: Sketch-Based Features > Pads > Pad

The Pads toolbar

• Select the sketch and then choose the Pad button from the Pads toolbar

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The Pad Definition dialog box

The sketch after exiting theSketcher workbench

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Dynamically dragging the Limit handle to specify the depth of extrusion

The model after extruding the sketch

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• Extruding the Sketch Using the Profile Definition Dialog Box

The Profile Definition dialog box

A multi-contoured sketch

Extruded contours

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CREATING BASE FEATURES BY REVOLVING SKETCHES

Menu: Insert > Sketch-Based Features > ShaftToolbar: Sketch-Based Features > Shaft

The Shaft Definition dialog box

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The sketch and the axis aroundwhich the sketch will be revolved

The model after creating the shaft feature

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Tutorial 2In this tutorial, you will create the base feature of the model shown in Figure by extruding a sketch drawn on the yz plane

Figure A Solid model for Tutorial 2 Figure B Views and dimensions for Tutorial 2

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Tutorial 1In this tutorial, you will create the model shown in Figure A. Its views and dimensions are shown in Figure B.

Figure A Solid model for Tutorial 1 Figure B Views and dimensions for Tutorial 1

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OTHER SKETCH-BASED FEATURESCreating Drafted Filleted Pad Features

Menu: Insert > Sketch-Based Features > Drafted Filleted PadToolbar: Sketch-Based Features > Pads drop-down > Drafted Filleted Pad

• Extruded feature having drafted faces and filleted edges• Draw a sketch and exit the Sketcher workbench• Choose the Drafted Filleted Pad button from the Pads toolbar

The Drafted Filleted Pad Definition dialog box

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The sketch to be extruded and theplane to be selected as the second limit

The resulting drafted filleted pad

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Creating Multi-Pad Features

Menu: Insert > Sketch-Based Features > Multi-PadToolbar: Sketch-Based Features > Pads drop-down > Multi-Pad

The multi-loop sketch to beextruded

The resulting extruded feature using the Multi-Pad tool

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The sketch to be extruded to create the pocket feature

The resulting pocket feature

Pocket feature with the defaultmaterial removal side selected

Pocket feature after flipping the material removal side

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Creating Drafted Filleted Pocket Features

Menu: Insert > Sketch-Based Features > Drafted Filleted PocketToolbar: Sketch-Based Features > Pockets drop-down > Drafted Filleted Pocket

The drafted filleted pocket feature

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Creating Multi-Pocket Features

Menu: Insert > Sketch-Based Features > Multi-PocketToolbar: Sketch-Based Features > Pockets drop-down > Multi-Pocket

The multi-pocket feature

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Creating Groove FeaturesMenu: Insert > Sketch-Based Features > GrooveToolbar: Sketch-Based Features > Groove

The Groove Definition dialog box

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Sketch for creating the groove feature The resulting groove feature

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Tutorial 2In this tutorial, you will create the model shown in Figure A. Its views and dimensions are shown in Figure B.

Figure A Model for Tutorial 2 Figure B Views and dimensions for Tutorial 2

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Tutorial 3In this tutorial, you will create the model shown in Figure A. The views and dimensions of the model are shown in Figure B.

Figure A Solid model for Tutorial 3 Figure B Views and dimensions for Tutorial 3

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The following steps are required to complete this tutorial:

a. Draw the sketch of the base feature on the yz plane, and extrude the sketch to the required distance using the Pad tool, refer to Figures C and D.

Figure C The sketch of the base feature Figure D The model after creating the base feature

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b. Create the second feature, which is a pocket feature, refer to Figures E and F.

Figure E The sketch of the second feature

Figure F Model after creating the second feature

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e. Create the last feature of the model, which is the pocket feature, refer to Figures K and L.

Figure K Sketch of the fifth feature Figure L The final model

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c. Create the third feature by extruding the sketch drawn on a plane at an offset distance from the xy plane, refer to Figures G through H.

Figure G Sketch of the third feature Figure H Surface to be selected

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d. Create the fourth feature, which is a groove feature, refer to Figures I and J.

Figure I Sketch of the fourth feature Figure J The model after creating the fourth feature

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Creating a Shell Feature

The Shell Definition dialog box

Menu: Insert > Dress-Up Features > ShellToolbar: Dress-Up Features > Shell

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Faces to be selected for removal Resulting shelled model

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Tutorial 2In this tutorial, you will create the model of the Vice Jaw shown in Figure A. Its views and dimensions are shown in Figure B. After creating this model, you will edit some of its dimensions. Figure C shows the views and dimensions that need to be edited.

Figure A Model of the Vice Jaw for Tutorial 2

Figure B Views and dimensions of the Vice Jaw for Tutorial 2

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Figure C Dimensions of the Vice Jaw to be modified

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a. Create the base feature of the model by extruding the sketch drawn on the zx plane, refer to Figure D and E.

Figure D Sketch of the base feature

Figure E Model after creating the base feature

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b. Create the second feature of the model by extruding the sketch drawn on the front face of the base feature, refer to Figures F and G.

Figure F Sketch of the second feature

Figure G Model after creating the second feature

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c. Create the third feature of the model by extruding a rectangular sketch drawn on the front face of the base feature, refer to Figures H and I.

Figure H Sketch of the third feature

Figure I Model after creating the third feature

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d. Create the holes using the Hole tool, refer to Figures J and K.

e. Apply fillet to the edges of the model, refer to Figure K.

Figure J The model after creating the counterbore hole

Figure K Final model after creating all features

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f. Modify the model, refer to Figure L.

Figure L The model after modifying the design

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Tutorial 3In this tutorial, you will create the model shown in Figure A. After creating this model, you will edit its design by replacing the counterbored holes with countersunk holes. Also, replace the rectangular slot by an elongated slot. Figure B shows the model after editing. The views and dimensions of the model to be created are shown in Figure C.

Figure A Model for Tutorial 3 Figure B Final edited model

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Figure C Views and dimensions of the model for Tutorial 3

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a. Create the base feature of the model by extruding the sketch drawn on the yz plane, refer to Figure D.

Figure D Model after creating the base feature

The following steps are required to complete this tutorial:

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b. Create a pad feature by extruding a sketch drawn on the front face of the base feature, refer to Figure E.

Figure E Model after creating the second feature

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c. Create the third and forth features by extruding the sketch drawn on the front face of the second feature, refer to Figures E and F.

Figure E Model after creating the third feature

Figure F Model after creating the Pocket feature

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d. Create the holes using the Hole tool and fillet the required edges, refer to Figure G.

Figure G The final model after creating all features

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f. Edit the design of the model, refer to Figures H and I

Figure H Edited sketch of the pocket feature

Figure I Final edited model

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ADVANCED MODELING TOOLSCreating Rib Features

Menu: Insert > Sketch-Based Features > RibToolbar: Sketch-Based Features > Rib• Sweep an open or a closed profile along an open or a closed center curve

The Rib Definitiondialog box

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Closed profile and the center curve tobe selected

Resulting rib feature

An unattached profile and the centercurve

Resulting rib feature

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The profile, center curve, andpulling direction to be selected

The rib feature created by selectingthe Keep angle option

The rib feature created by selecting the Pulling direction option

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Center curve, section, and pullingdirection to be selected

The rib feature with the Moveprofile to path check box selected

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Creating Slot FeaturesMenu: Insert > Sketch-Based Features > SlotToolbar: Sketch-Based Features > Slot

The Slot Definition dialog box The profile and the center curve

• Remove the material by sweeping a profile• Choose the Slot button from the Sketch-Based Features toolbar

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Resulting slot feature The slot feature after selectingthe Merge slot’s ends check box

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Creating Multi-Sections Solid FeaturesMenu: Insert > Sketch-Based Features > Multi-sections SolidToolbar: Sketch-Based Features > Multi-sections Solid

The Multi-Sections Solid Definition dialog box

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Sections to be selected to create the multi-sections solid

Preview of the resulting multi-sections solid feature

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• Creating Multi-Sections Solid Sections with Unequal Number of Vertices

The Multi-Sections Solid Definitiondialog box after choosing the Coupling tab

The Coupling dialog box

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Sections, closing points, andcouplings

Resulting multi-sections solid feature

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• Creating a Multi-Sections Solid Feature between a Circular and a Polygonal Section

Sections, closing points, and couplings The preview of the resultingmulti-sections solid feature

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• Creating a Multi-Sections Solid of the Sections along a Spine

The Multi-Sections Solid Definition dialog box after choosing the Spine tab

The sections and spine to be selected

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Multi-sections solid feature createdwithout selecting the spine

Multi-sections solid featureafter selecting the spine

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• Creating a Multi-Sections Solid Feature with Relimitations

The Multi-Sections Solid Definition dialog box displayed after choosing the Relimitation tab

The sections and spine tobe selected

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The multi-sections solid featurecreated on selecting the relimitation check boxes

The multi-sections solid featurecreated after clearing the relimitation check boxes

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Creating Removed Multi-Sections Solid Features

Menu: Insert > Sketch-Based Features > Removed Multi-sections SolidToolbar: Sketch-Based Features > Removed Multi-sections Solid

The Removed Multi-Sections Definition dialog box

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Sections and the spine to be selected Resulting removedmulti-sections solid feature

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Tutorial 1In this tutorial, you will create the model of the Upper Housing shown in Figure A. Its orthographic views and dimensions are shown in Figure B.

Figure A Model of the Upper Housing for Tutorial 1

Figure B Views and dimensions of the Upper Housing for Tutorial 1

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The following steps are required to complete this tutorial:a. Create the base feature of the model, refer to Figure C.

Figure C Base feature of the model

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b. Create the rib feature, refer to Figures D through G.

Figure D Sketch of the center curve Figure E Sketch of the profile

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Figure F Sketches for the rib feature Figure G The model after creating the rib feature

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c. Create the multi-sections solid feature, refer to Figures H and I.

Figure H Second section of the multi-sections solid feature

Figure I Model after creating the multi-sections solid feature

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d. Fillet the edges of the model, refer to Figure J.

Figure J Model after filleting the edges

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e. Shell the model by removing the bottom and the left planar face of the model, refer to Figure K.

Figure K Model after shelling

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f. Create the other features to complete the model, refer to Figure L.

Figure L Final model of the Upper Housing

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Tutorial 2In this tutorial, you will create the model of the Helical Gear shown in Figure A. Its views and dimensions are shown in Figure B.

Figure A Model of the Helical Gear for Tutorial 2

Figure B Views and dimensions for Tutorial 2

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a. Create the base feature of the model, refer to Figures C and D.

Figure C The sketch for creating the Shaft feature

Figure D Base feature of the model

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b. Create a pad feature on the right of the base feature and then pattern it using the Circular Pattern tool, refer to Figures E and F.

Figure E The sketch for creating the pad feature

Figure F The model after creating the circular pattern of the pad feature

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c. Draw the sketch of the first section of the gear tooth on the front face of the base feature, refer to Figures G and H.

Figure G Sketch created on the front planar face

Figure H Remaining entities of the sketch created

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d. Draw the sketch of the second section, refer to Figure I.

Figure I The second section for the multi-section solid

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e. Draw the sketch of the third section of the gear, refer to Figure J.

Figure J The third section for the multi-section solid

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f. Create a multi-sections solid feature using three sections, refer to Figure K through M.

Figure K Closing points and their directions

Figure L The preview of the resultant model

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Figure M Final model of the Helical gear