Workholding Solutions Master Catalog

LOCATING COMPONENTS workholding solutions

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

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

PRESENT METHOD

TIME

JERGENS METHOD

TIME

LOCATING COMPONENTS

1. Finish one edge.

.5 hours

1. Eliminated. 2. One set-up serves for establishing locator holes and 3. Eliminated. 4. Eliminated 5. Eliminated. 6. Eliminated. 7. Inspect on original set-up. sine xture keys.

2. Locate on jig bore and bore locating point and two locator pin holes 3. Relocate, position and mill two xture key slots. 4. Relocate and, by use of sine bar or other positioning device, establish and mill two xture key slots.

1.75 hours

4.5 hours

1.75 hours

2.35 hours

1.0 hours

5. For opposite slots-same as above

2.35 hours

6. Drill and tap six holes for holding xture keys in slots. 7. Set up and perform inspection-if inaccurate, reroute for reworking.

1.5 hours

1.0 hours

TOTAL TIME REQUIRED

11.2 hours

TOTAL TIME REQUIRED

5.5 hours

ON THIS PARTICULAR FIXTURE - SAVE OVER 50% OF SET-UP TIME!

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