Adjustable machining apparatus for machining a cylindrical workpiece

An adjustable machining apparatus for machining a raised tooth integrally attached to a generally cylindrical workpiece having a longitudinal axis, comprising:

• (a) a spindle for gripping and rotating a cutting tool about an axis perpendicular to said longitudinal axis, said cutting too being capable of removing a portion of the raised tooth;
• (b) a swivel, connected to said spindle, for pivoting said spindle about a pivot point on a first axis parallel to the longitudinal axis of the workpiece;
• (c) a first translation mechanism connected to said swivel for translating said swivel toward and away from the workpiece along a second axis perpendicular to the first axis;
• (d) a second translation mechanism connected to said first translation mechanism for translating said first translation mechanism along a third axis transverse to the longitudinal axis of the workpiece;
• (e) a third translation mechanism connected to said second translation mechanism for translating said second translation mechanism along a fourth axis parallel to the longitudinal axis of the workpiece;
• and,
• (f) attachment means, connected to said third translation mechanism for removably attaching said third translation mechanism to the workpiece.

An adjustable machining apparatus for machining a raised tooth preselected from a plurality of spaced-apart adjacent raised teeth disposed circumferentially around a generally cylindrical workpiece having a longitudinal axis, the raised tooth having a top surface and a depending side surface, the rotor tooth integrally attached to the workpiece and extending parallel to the longitudinal axis thereof, comprising:

• (a) a spindle for gripping and rotating a cutting tool about an axis perpendicular to said longitudinal axis, said cutting too being capable of being interposed between adjacent raised teeth for removing a predetermined portion of the preselected raised tooth;
• (b) a swivel, connected to said spindle, for pivoting said spindle in a predetermined arc about a pivot point on a first axis parallel to the longitudinal axis of the workpiece for disposing the cutting tool into cutting contact with the predetermined portion of the raised tooth;
• (c) a first frame having an elongate track portion, said first frame disposed adjacent said swivel;
• (d) a translatable first carriage connected to said swivel and slidably engaging the track portion of said first frame for translating said swivel toward and away from the workpiece along a second axis perpendicular to the first axis, said first carriage having an internally threaded bore therein;
• (e) a first lead screw rotatably connected to said first frame and threadably engaging the internally threaded bore of said first carriage for threadably slidably translating said first carriage along the second axis as said first lead screw rotates, whereby said swivel translates along the second axis as said first carriage translates;
• (f) a second frame having an elongate track portion, said second frame disposed adjacent said first frame;
• (g) a translatable second carriage connected to said first frame and slidably engaging the track portion of said second frame for translating said first frame along a third axis transverse to the longitudinal axis of the workpiece, said second carriage having an internally threaded bore therein;
• (h) a second lead screw rotatably connected to said second frame and threadably engaging the internally threaded bore of said second carriage for threadably slidably translating said second carriage along the third axis as said second lead screw rotates, whereby said first frame and said swivel translate along the third axis as said second carriage translates;
• (i) a base having an elongate track portion, said base disposed adjacent said second frame;
• (j) a translatable third carriage connected to said second frame and slidably engaging the track portion of said base for translating said second frame along a fourth axis parallel to the longitudinal axis of the workpiece, said third carriage having an internally threaded bore therein;
• (k) a third lead screw rotatably connected to said base and threadably engaging the internally threaded bore of said third carriage for threadably slidably translating said third carriage along the fourth axis as said third lead screw rotates, whereby said second frame, said first frame, and said swivel translate along the fourth axis as said third carriage translates;
• and
• (1) a plurality of electromagnets connected to said base for removably attaching said base to the workpiece as said magnets are energized and for detaching said base from the workpiece as said magnets are deenergized.