Power installation tool for helical coil inserts

摘要

A tool for installing a helical coil insert (12) in a tapped hole (26) formed in a workpiece (28) includes a tubular body (22) having a bore (30) extending along its axis, a mandrel (24) coaxially disposed in the bore of the tubular body, a motor for rotating the mandrel, and an air cylinder for applying an axial force to the mandrel. The tubular body (22) includes a recess (140) at one end for carrying a helical coil insert (12) in alignment with the bore. An opening in the tubular body allows a user access to the recess. The tubular body (22) is moveable to position the helical coil insert (12) into selective engagement with the mandrel (24), whereby rotation of the mandrel installs the helical coil insert a selected depth in the tapped hole (26) of the workpiece (28). In addition, the mandrel (24) slides axially within the bore (30) of the tubular body (22) to remove the tang (14) from the helical coil insert (12) upon installation of the helical coil insert in the tapped hole.