Fastener installation tool

A fastener installation tool, comprising:

• a. a cylindrical tool body having a first closed axial end, cylindrical side walls, and a second open end having a central, axially-extending blind bore;
• b. a wedge-shaped displacer extending axially from the open end of the tool body and surrounding the opening of the bore;
• c. a compression spring seated at one end in the bottom of the bore and connected at the other end to a pressure plate having a shape and size that compliments the shape and size of the central bore and permits the pressure plate to freely reciprocate within the bore;
• wherein when the fastener is inserted into a blind hole in a workpiece, the tool engages the fastener and the workpiece, and
• wherein as the tool is rotated, the displacer of the tool is constructed and arranged to cold deform inwardly the material surrounding the blind hole onto a material receiving portion of a fastener.

A fastener installation tool, comprising:

• a. a casing having a top end, a bottom end, and a central rotational axis;
• b. a spindle fixed to said top end of the casing and adapted for affixation to a rotary and vertically reciprocal element of an industrial machine;
• c. a tip at the bottom end of the casing adapted for deforming a workpiece as the tip rotates and is pressed against the workpiece;
• and
• d. an axial bore within said tip adapted for holding a fastener installed by the tool;
• and
• wherein said tip has a distal end surface orthogonal to the axial bore which is constructed and arranged to engage and deform the workpiece and including a displacer on the end surface wherein said displacer is chamfered from the displacer ridge to an outer edge of the displacer.

A fastener installation tool, comprising:

• a. a casing having a top end, a bottom end, and a central rotational axis;
• b. a spindle fixed to said top end of the casing and adapted for affixation to a rotary and vertically reciprocal element of an industrial machine;
• c. a tip at the bottom end of the casing adapted for deforming a workpiece as the tip rotates and is pressed against the workpiece;
• and
• d. an axial bore within said tip adapted for holding a fastener installed by the tool including fluid communication channels extending from the spindle to the tip for providing a vacuum at the tip when the spindle is connected to a vacuum source, wherein the vacuum holds the fastener within the tip bore while the tool body rotates.