· Designing a Spring

· We use Design Accelerator Compression Spring generator to create compression springs

· We learn

· Design compression spring

· Position compression spring within assembly

· Use graphical preview

· Set compression spring properties

· Set file names and display names

· Insert compression spring into assembly (page 1)

· Start the Generator

· Active project: tutorial_files

· Open: Cam_Spring.iam

· Design Accelerator panel

· Click Compression Spring tool (not in Assembly panel tools)

· Compression Spring Component Generator dialog Opens

· In Design tab

· With last valid settings

· Recommended

· Create disc cam before working this tutorial so assembly is complete (page 2)

· Specify Compression Spring Placement

· Placement group box

· Click Axis button

· Select cylindrical face within the assembly (valve stem)

· Start plane button activates

· Select start plane within assembly (rotate view to see from below)

· Graphical preview of spring displays (page 3)

· Graphical Preview

· A graphical preview of selected geometry is displayed in Autodesk Inventor

· Grips

· Specify the spring diameter or double-click grip to change value

· Move the spring along its axis (page 4)

· Specify Compression Spring Load

· Design tab

· Placement group box

· Select Min. Load from the pull-down menu

· Note: (check this)

· Design tab

· Click spring reference image at top of the

· Schematic image with basic spring dimensions opens (page 5)

· Measure the Dimension

· Measure tool

· Measure distance between two faces

· Generator automatically designs compression preview according to measured distance

· Calculation tab

· Spring Strength Calculation group box

· Select Compression Spring Design from the pull-down menu

· Assembly Dimension group box

· Select H, L1 --> L8

· Click arrow next to Min. Load Length

· Click Measure

· Select two inner faces

· Click Calculate to display preview

· Measured distance of 30 mm is inserted into Min. Load Length text box field (page 6)

· Perform the Calculation

· Calculation tab

· We can

· Set values for compression spring calculation

· In this tutorial

· Set following values

· Calculation Options group box

· Select F, Assembly Dimensions --> d, L0, n, D

· Design Type pull-down menu

· Method of Stress

· Curvature Correction pull-down menu

· No Correction

· Loads group box

· Set

·

· Min. Load: 500 N

· Max. Load: 800 N

· Working Load: 600 N

· Click Calculate

· Failed inputs displayed in red

· Summary of Messages

· See report of calculation

· "Calculation indicates design compliance"

· Results button at top right

· Open HTML report

· Click OK to insert compression into assembly

· Wait (page 7)

· Filename Settings

· Compression Spring Component Generator dialog

· File Naming icon at top right of dialog

· File Naming dialog

· Change names as needed

· Check Always prompt for the name box (for every time we create a new component)

· Click OK to insert disc cam into assembly (page 8)

· Insert Compression Spring into the Assembly

· When designing compression spring we were prompted to place disc cam placement

· Thus disc cam is placed into selected position (page 9)

· Summary

· We learned

· Design compression spring

· Position compression spring within assembly

· Use graphical preview

· Set compression spring properties

· Set file names and display names

· Insert compression spring into assembly

· Must: Check Help for detailed information (page 10)