Boring tool guide device

Claim 2

A boring tool guide device comprising in combination; a spindle chuck adapter, a speed fit driver, a cutter shank having a cutter at one end and means for coupling the shank to the speed fit driver at the other end, a guide body, said guide body including a base portion having an axial bore and a tubular portion extending axially from said base portion and being substantially coaxial with said bore, said guide body having retainer means to secure the guide body to a work fixture, a tubular shaped depth control spacer having an end wall and an axial aperture therein, said control spacer being in telescoping engagement with said tubular portion, said control spacer having means for limiting the distance that the tubular portion of the guide body can be telescoped therein, resilient means received within said tubular portion and said control spacer to bias the control spacer and the guide body axially apart, said cutter shank being guidingly received in the axial bore of said guide body and the cutter and speed fit driver extending beyond the guide body and control spacer respectively, whereby said retainer means can be secured to said work fixture and rotatable driven power means can be removably secured to the speed fit driver to axially feed the cutter along its axis into a workpiece with the maximum depth of penetration being determined by said limiting means.

Claim 3

In the device of claim 1, wherein said limiting means includes at least one thrust washer received within said depth control spacer.

Claim 4

In the device of claim 1, wherein at least one washer is located on the exterior of said end wall of control spacer and concentric with the cutter shaft.

Claim 5

In the device of claim 1, wherein said retainer means comprises a boss having a retainer groove.

Claim 6

In the device of claim 1, wherein said cutter includes a single flute concentric point cutting edge.

Claim 7

A boring tool guide and positioning device comprising; clamping means having opposed jaws, said boring tool device being secured in one of said jaws substantially perpendicular to the surface of a work piece engaged by said clamping means, a cutter shank having a cutter at one end and means for connecting the shank to drive means at the other end, a guide body, said guide body including a base portion having an axial bore, and a tubular portion extending axially from said base portion and being substantially coaxial with said bore, a tubular shaped depth control spacer having a end wall and an axial aperture therein, said control spacer being in telescoping engagement with said tubular portion, said control spacer having means for limiting the distance that the tubular portion of the guide body can be telescoped therein, resilient means received within said tubular portion and control spacer to bias the control spacer and the guide body axially apart, said cutter shank being guidingly received in the axial bore of said guide and the cutter and the connecting means extending beyond the guide body and control spacer respectively, whereby said clamping means can be secured to the work piece and said drive means can be removably secured to said connecting means to axially feed the cutter along its axis into said workpiece with the maximum depth of penetration being determined by said limiting means.

Claim 8

A boring tool guide and positioning device comprising; clamping means having opposed jaws, said boring tool device being secured in one of said jaws substantially perpendicular to the surface of a work piece engaged by said clamping means, a cutter shank having a cutter at one end and means for connecting the shank to drive means at the other end, a guide body, said guide body including a base portion having an axial bore, and a tubular portion extending axially from said base portion and being substantially coaxial with said bore, a tubular shaped depth control spacer having a end wall and an axial aperture therein, said control spacer being in telescoping engagement with said tubular portion, said control spacer having means for limiting the distance that the tubular portion of the guide body can be telescoped therein, resilient means received within said tubular portion and control spacer to bias the control spacer and the guide body axially apart, said cutter shank being guidingly received in the axial bore of said guide and the cutter and the connecting means extending beyond the guide body and control spacer respectively, whereby said clamping means can be secured to the work piece and said drive means can be removably secured to said connecting means to axially feed the cutter along its axis into said workpiece with the maximum depth of penetration being determined by said limiting means.

Claim 9

In the boring tool guide and positioning device of claim 6, wherein alignment means are associated with the clamping means for positioning the cutter at a desired location on the surface of a circular work piece received between the jaws of said clamping means.

Claim 10

In the boring tool guide and positioning device of claim 6, wherein said clamping means have yieldably urged toggle means coupled to said jaws to removably secure the same to said work piece.

Claim 11

In the boring tool guide and positioning device of claim 6, an aligning guide comprising a flat elongate member; and means securing the flat elongate member with one flat surface adjacent one of said jaws and parallel to the axis of the boring shank.

Claim 12

In the device of claim 6, wherein said cutter includes a single flute concentric point cutting edge.