Criando um Lens usando o SolidWorks: Passos para criar a base, conexão e detalhes, Notas de estudo de Informática

Baixe Criando um Lens usando o SolidWorks: Passos para criar a base, conexão e detalhes e outras Notas de estudo em PDF para Informática, somente na Docsity! SolidWorks 2001 Tutorial A Basic Introduction Marie P. Planchard & David C. Planchard SDC www.schroff.com PUBLICATIONS SolidWorks Tutorial Revolve Features PAGE 2 - 1 Project 2 Revolve Features Below are the desired outcomes and usage competencies based upon the completion of Project 2. Project Desired Outcomes Usage Competencies A comprehensive understanding of the customer’s design requirements and desires. To comprehend the fundamental definitions and process of Feature- Based 3D Solid Modeling. Specific knowledge of Revolve base features. Understanding of the Shell feature, Hole Wizard, Dome feature and Circular Pattern. Two key flashlight components: • LENS • BULB Ability to apply Extrude and Fillet features. Revolve Features SolidWorks Tutorial PAGE 2 - 4 LENS Feature Overview Create the LENS. Use the solid Revolved Base feature, Figure 2.5. Create uniform wall thickness. Create the Shell feature, Figure 2.6. Create an Extruded-Boss feature from the back of the LENS, Figure 2.7. Create a Thin-Revolved feature to connect the LENS to the BATTERYPLATE, Figure 2.8. Create a Counterbore Hole feature with the HoleWizard, Figure 2.9. The BULB is located inside the Counterbore Hole. Create the front LensFlange feature. Add a transparent LensShield feature, Figure 2.10. Figure 2.5 Figure 2.6 Figure 2.7 Figure 2.8 Figure 2.10 Figure 2.9 Counter bore SolidWorks Tutorial Revolve Features PAGE 2 - 5 Create the LENS Create the LENS with a Revolved Base feature. The solid Revolved Base feature requires a sketched profile and a centerline. The profile is located on the Right plane with the centerline collinear to the Top plane. The profile lines reference the Top and Front planes. The curve of the LENS is created with a 3-point arc. Create the LENS. 1) Click New . Click PartEnglishTemplate. Click OK. Click Save . Enter LENS. Click the Save button. 2) View the planes. Right-click on the Front plane in the FeatureManager. Click Show. Right-click Top plane in the FeatureManager. Click Show. 3) Select the Sketch plane. Click the Right plane. Display the view. Click Right . 4) Sketch the centerline. Click Sketch . Click Centerline . Sketch a horizontal centerline collinear to the Top plane, through the Origin . 5) Sketch the profile. Create three lines. Click Line . Create the first line. Sketch a vertical line collinear to the Front plane coincident with the Origin. Create the second line. Sketch a horizontal line coincident with the Top plane. Create the third line. Sketch a vertical line approximately 1/3 the length of the first line. Create an arc. Determine the curvature of the LENS. A 3 POINT Arc requires three points: • Start point • End point • Center point The arc midpoint is aligned with the center point. The arc position is determined by dragging the arc midpoint or center point above or below the arc. RIGHT (Sketch plane) Centerline thru Origin, Collinear to TOP FRONT Revolve Features SolidWorks Tutorial PAGE 2 - 6 On-line help contains an animation file to create a 3-point arc. Click Help, Index, Arc, 3Point. Run the animation. Click the AVI icon . 6) Create a 3 Point Arc. Click 3Pt Arc . Create the arc start point. Click the top point on the left vertical line. Hold the left mouse button down. Drag the mouse pointer to the top point on the right vertical line. Create the arc end point. Release the mouse button. Click and drag the arc center point below the Origin. Release the left mouse button. 7) Add geometric relationships. Click Add Relations . The arc is currently selected. Click the arc to remove it from the Select Entities text box. Create an equal relationship. Click the left vertical line. Click the horizontal line. Click the Equal button. Click Apply. Click Close. 8) Add dimensions. Click Dimension . Create a vertical linear dimension for the left line. Enter 2.000. Create a vertical linear dimension for the right line. Enter 0.400. Create a radial dimension for the arc. Enter 4.000. The black Sketch is fully defined. Centerline Equal profile lines Center point for 3Point arc Drag arc center point below the Origin SolidWorks Tutorial Revolve Features PAGE 2 - 9 Create the Counterbore Hole. Click HoleWizard . The Hole Definition dialog box is displayed. Click the Counterbore tab. 21) Define the parameters. Click the Parameter 1 Binding in the Screw type property text box. The Parameter 1 and Parameter 2 text boxes are displayed. 22) Enter Hex Bolt from the drop down list for Screw type. Select ½ from the drop down list for Size. Click Through All from the drop down list for End Condition & Depth. Accept the Hole Fit and Diameter value. Click the C-Bore Diameter value. Enter 0.600. Click the C-Bore Depth value. Enter 0.200. 23) Add the new hole type to the favorites list. Click the Add button. Enter CBORE FOR BULB. Click OK. Revolve Features SolidWorks Tutorial PAGE 2 - 10 24) Click Next from the Hole Definition dialog box. Position the hole coincident with the Origin. Click Add Relations . Click the center point of the Counterbore hole. Click the Origin . Click Coincident. Complete the hole. Click Finish from the Hole Wizard. 25) Expand the Hole. Click Plus Sign to the left of the Hole feature. Sketch3 and Sketch4 are used to create the Hole feature. 26) Display the Section view of BulbHole through the Right plane. Click the Right plane from the FeatureManager. Click View from the Main menu. Click Display, SectionView. Click the Flip Side to View check box. Click OK. Display the Isometric View. Click Isometric. 27) Display the Full view. Click View, Display, SectionView. 28) Rename CboreHole1 to BulbHole. 29) Save the LENS. Click Save . Create the LENS - Boss Revolve Thin Feature Create a Boss Revolve Thin feature. Rotate an open sketched profile around a centerline. The sketch profile must be open and cannot cross the centerline. The Tangent Arc sketch tool utilizes extracted geometry created with the Convert Entities sketch tool. Delete the extracted geometry after the Tangent Arc is created. Use the Boss Revolve Thin feature to physically connect the LENS to the BATTERYPLATE in the FLASHLIGHT. Create the Boss Revolve Thin feature. 30) Select the Sketch plane. Click the Right plane. Display the Right view. Click Right . 31) Create the Sketch. Click Sketch . Sketch the centerline. Click Centerline . Sketch a horizontal centerline collinear to the Top plane through the Origin . The new centerline is collinear with the Temporary axis. SolidWorks Tutorial Revolve Features PAGE 2 - 11 32) Select the right edge. Right-click in the Graphics window. Click Select from the Pop-up menu. Click the right edge of the Base feature. 33) Click Convert Entities . Select the edge. Create an arc tangent to the extracted edge. 34) Click TangentArc . Click the top point of the vertical line. Drag the mouse pointer to the left. The mouse pointer displays a vertical line when the endpoint aligns with the arc center point. Create the 90° arc. Release the mouse button. Note: To create the 90° arc, the Snap to points in the Grid/Units must be unchecked. 35) The vertical line segments are required to create the Tangent Arc. Remove the two line segments. Click Trim . Click both vertical edges. The Sketch consists of an arc and a centerline. 36) Add a dimension. Click Dimension . Create a radial dimension. Enter 0.100. The sketch arc requires a coincident relationship. The center point of the arc is coincident with the horizontal silhouette edge of the Base-Revolve feature. Click this edge to convert R.100 Delete two lines on edge Vertical line feedback for 90° arc Revolve Features SolidWorks Tutorial PAGE 2 - 14 Create the LENS - Extruded Boss Feature An Extruded Boss feature is used to create the LensShield. The feature extracts the inside circular edge of the LensCover and places it on the Front plane. The LensShield feature is transparent in order to view the BULB and simulate clear plastic. Create the Extruded Boss feature. 50) Select the Sketch plane. Click the Front plane from the FeatureManager. Display the Front view. Click Front . 51) Sketch the profile. Click Sketch . Click the front inner circular edge of the LensShield (Boss-Extrude2). Click Convert Entities . The circle is projected onto the Front Plane. 52) Extrude the Sketch. Click Extruded Boss/Base . Enter 0.100 for Depth. Click OK. 53) Rename Boss- Extrude3 to LensShield. Extrude Direction Front Plane SolidWorks Tutorial Revolve Features PAGE 2 - 15 54) Add transparency to the LensShield. Right-click the LensShield in the Graphics window. Click Feature Properties. The Feature Properties dialog box is displayed. 55) Click the Color button. The Entity Property dialog box is displayed. Click the Advanced button. 56) Set the transparency for the feature. Drag the Transparency slider to the far right side. Click OK from the Material Properties dialog box. Click OK from the Entity Property dialog box. Click OK from the Feature Properties box. Revolve Features SolidWorks Tutorial PAGE 2 - 16 57) Display the transparent faces. Click Shaded . When the LensShield is selected, the faces are not transparent. Click in the Graphics window to display the face transparency. 58) Save the LENS. Click Save . BULB The BULB is contained within the LENS assembly. The BULB is a purchased part. The BULB utilizes the Revolved feature as the Base feature. BULB Feature Overview Create the Revolved Base feature from a sketched profile on the Right plane, Figure 2.11a. Create a Revolved Boss feature using a B-Spline sketched profile. A B-Spline is a complex curve, Figure 2.11b. Create a Revolved Cut Thin feature at the base of the BULB, Figure 2.11c. Create a Dome feature at the base of the BULB, Figure 2.11d. Create a Circular Pattern feature from an Extruded Cut, Figure 2.11e. Modify the BULB to practice Edit Definition and Edit Sketch after a design change. Figure 2.11a 2.11b 2.11c 2.11d 2.11e SolidWorks Tutorial Revolve Features PAGE 2 - 19 68) Create the Sketch. Click Sketch . Sketch the centerline. Click Centerline . Sketch a horizontal centerline collinear to the Top plane, coincident to the Origin . Sketch the profile. Click B-Spline . Sketch the start point. Click the left vertical edge of the Base feature. Sketch the control point. Drag the mouse pointer to the left of the Base feature and below the first point. Release the mouse button. Sketch the end point. Click the control point. Drag the mouse pointer to the centerline. Release the mouse button. 69) Adjust the B-Spline. Click Select . Position the mouse pointer over the B-Spline control point. Drag the mouse pointer upward. Release the mouse button. Note: SolidWorks does not require dimensions to create a feature. 70) Complete the profile. Sketch two lines. Click Line . Create a horizontal line. Sketch a horizontal line from the B-Spline endpoint to the left edge of the Base-Revolved feature. Create a vertical line. Sketch a vertical line to the B-Spline start point, collinear with the left edge of the Base- Revolved feature. 71) Revolve the Sketch. Click Revolve from the Feature toolbar. The Revolve Feature dialog box is displayed. Accept the default options. Display the Revolve feature. Click OK. 72) Save the BULB. Click Save. Create the BULB - Revolved Cut Thin Feature A Revolved Cut Thin feature removes material by rotating an open sketch profile around a centerline. Create the Revolved Cut Thin feature. 73) Select the Sketch plane. Click the Right plane. End point Control point Start Horizontal and Vertical lines Revolve Features SolidWorks Tutorial PAGE 2 - 20 74) Create the profile. Click Sketch . Display the Right view. Click Right . 75) Sketch the centerline. Click Centerline . Sketch a horizontal centerline collinear to the Top plane, coincident to the Origin . 76) Sketch the profile. Click Line . Sketch a line from the midpoint of the top silhouette edge downward and to the right. Sketch a horizontal line with the end point coincident with the right edge. 77) Add dimensions. Click Dimension . Create the right vertical dimension. Enter 0.130. Add two horizontal dimensions. Enter 0.180 for the first line. Enter 0.070 for the second line. The black Sketch is fully defined. 78) Revolve the Sketch. Click Revolved Cut from the Feature toolbar. The Revolve Feature dialog box is displayed. Material to be removed points away from the centerline. Click No to the question, “Would you line the sketch to be automatically closed?” Click the Direction button. Enter 0.150 for Thickness. Display the Revolved Cut Thin feature. Click OK. 79) Save the BULB. Click Save. Cut direction outward SolidWorks Tutorial Revolve Features PAGE 2 - 21 Create the BULB - Dome Feature A Dome feature creates spherical or elliptical shaped geometry. Use the Dome feature to create the Connector feature of the BULB. Create the Dome feature. 80) Select the Sketch plane. Click the back circular face of the Revolve Cut Thin. 81) Click Insert from the Main menu. Click Features, Dome. The Dome dialog box is displayed. Enter 0.100 for Height. Display the Dome. Click OK. 82) Save the BULB. Click Save. Create the BULB - Circular Pattern The Pattern feature creates one or more instances of a feature or a group of features. The Circular Pattern feature places the instances around an axis of revolution. The Pattern feature requires a seed feature. The seed feature is the first feature in the Pattern. The seed feature in this section is an Extruded-Cut. Create the Circular Pattern. 83) Select the Sketch plane. Click the front circular face of the Base feature. 84) Create the Sketch. Click Sketch . Display the Front view. Click Front . 85) Extract the outside circular edge of the Sketch plane. Click Select . Click the outside circular edge. Click Convert Entities . Convert outside edge Revolve Features SolidWorks Tutorial PAGE 2 - 24 The Rollback and Edit Definition functions are used to implement the design change. The Rollback function allows a feature to be redefined in any state or order. Implement the design change. Add the new Fillet feature before the Extruded Cut feature. Reorder the Fillet feature in the FeatureManager and view the results. Create the Fillet. 99) Position the Rollback bar. Place the mouse pointer over the yellow Rollback bar at the bottom of the FeatureManager design tree. The mouse pointer displays a symbol of a hand. Drag the Rollback bar upward to below the Dome feature. 100)Click the outside front circular edge of the BULB. Enter 0.01 for Fillet Radius. Click OK. 101)Position the Rollback bar. Drag the Rollback bar to the bottom of the FeatureManager. 102)Reorder Fillet1. Drag Fillet1 text to the bottom of the FeatureManager. 103)One Fillet edge is selected between 2 v-shape Extruded Cuts. This is not the design intent. Drag Fillet1 text before the Cut- Extrude1 text. 104)Save the BULB. Click Save. The v-shape Extruded Cut requires a 2D sketch plane. The Extruded Cut fails when the Fillet radius becomes too large and removes the sketch plane. Creating features on curves surfaces with reference planes is discussed in the next project. SolidWorks Tutorial Revolve Features PAGE 2 - 25 Customizing Toolbars The default Toolbars contains numerous icons that represent basic functions. SolidWorks contains additional features and functions not displayed on the default Toolbars. Customize the Toolbar. 105)Place the Dome icon and the Rib icon on the Features Toolbar. Click Tools from the Main menu. Click Customize. The Customize dialog box is displayed. 106)Click the Commands tab. Click Features from the category text box. Drag the Dome icon into the Features Toolbar. 107)Drag the Rib icon into the Features Toolbar. Update the Toolbars. Click OK from the Customize dialog box. The Rib feature is required for the next Project. You have just created two parts: • LENS • BULB Practice the exercises before moving onto the next section. Drag Dome icon into Feature toolbar Dome Feature Rib Feature Revolve Features SolidWorks Tutorial PAGE 2 - 26 Questions 1. Identify the function of the following features: Revolved Base Revolved Cut Thin 2. Name the two line types required in the sketch of a Revolved feature. 3. What is the function of the Shell feature? 4. An arc requires _______ points? 5. Name the required points of an arc? 6. When do you use the Hole Wizard feature? 7. Describe the Mid Plane option for a Revolved Thin feature. 8. What is a B-Spline? 9. Identify the required information for a Circular Pattern? 10. How do you control the display of the Temporary Axis? 11. Define Rollback in the FeatureManager. 12. How do you add the Dome feature icon to the Feature Toolbar?