Locating Components - Jergens & Acme - #20

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4 Jergens, Inc. • Jergens Way • 15700 S. Waterloo Road • Cleveland, Ohio 44110-3898 USA LOCATING COMPONENTS www.jergensinc.com 4.20 PRESENT METHOD TIME 1. Finish one edge. .5 hours 2. Locate on jig bore and bore locating point and two locator pin holes 1.75 hours 3. Relocate, position and mill two fixture key slots. 1.75 hours 4. Relocate and, by use of sine bar or other positioning device, establish and mill two fixture key slots. 2.35 hours 5. For opposite slots-same as above 2.35 hours 6. Drill and tap six holes for holding fixture keys in slots. 1.5 hours 7. Set up and perform inspection-if inaccurate, reroute for reworking. 1.0 hours TOTAL TIME REQUIRED 11.2 hours ON THIS PARTICULAR FIXTURE - SAVE OVER 50% OF SET-UP TIME! Present Method A total of 11.2 hours was required to complete this fixture base with finished edge, milled fixture key slots, bored locator pin holes and drilled and tapped set screw holes. Jergens Method It took only 5 1/2 hours to complete this fixture with bored sine fixture key holes and bored locator pin holes Compare The Jergens Sine Fixture Key Method To The Standard Method Construct a fixture to mill slots in castings A, B, and C. The locator pins to be common. A B C JERGENS METHOD TIME 1. Eliminated. 2. One set-up serves for establishing locator holes and 4.5 hours sine fixture keys. 3. Eliminated. 4. Eliminated 5. Eliminated. 6. Eliminated. 7. Inspect on original set-up. 1.0 hours TOTAL TIME REQUIRED 5.5 hours