WORKHOLDING

WORKHOLDING

1. Jigs

   • Function
     • To hold the workpiece
     • To guide a tool or operation
       • Drilling
       • Tapping
       • Assembly of dowel pins

2. Fixture

   • Function
     • To hold workpiece relative to the tool
       • Referencing
       • Repeatibility
       • Stability
   • Type of fixture
     • Makeshift
       • Temporary general-purpose fixture
         • Custom one-off
     • Disposable
       • Design for workpiece not long lasting
         • Low quantity custom
     • Modular
       • Flexible enough for several standard parts
         • Medium quantity standard
     • Permanent
       • High quantity standard

3. Securing workpiece to allow for machining or other similar industrial process

4. To prevent movement in 12 Degree of Freedom

   • Prevention
     • Support base
     • Locating pins
     • Toggle clamp