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 xture key slots. 1.75 hours 4. Relocate and, by use of sine bar or other positioning device, establish and mill two xture key slots. 2.35 hours 5. For opposite slots-same as above 2.35 hours 6. Drill and tap six holes for holding xture 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 xture base with nished edge, milled xture 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 xture with bored sine xture key holes and bored locator pin holes Compare The Jergens Sine Fixture Key Method To The Standard Method Construct a xture 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 xture keys. 3. Eliminated. 4. Eliminated 5. Eliminated. 6. Eliminated. 7. Inspect on original set-up. 1.0 hours TOTAL TIME REQUIRED 5.5 hours LOCATING COMPONENTS LOCATING COMPONENTS workholding solutions Phone: 877-426-2504 | Fax: +1 216-481-6193 | E-mail: info@jergensinc.com | www.jergensinc.com 249
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