Portable Keymill
AssigneeClimax Portable Machine Tools, Inc.
InventorDavid S. Strait
Life of this patent
Estimating the term…
Abstract
An improved portable milling machine adapted to grip a work piece and to cut a keyway through a clamping area. This is accomplished without releasing the grip of the milling machine on the work piece by forming an elongated slot in a bed plate with lands lying at opposite sides of the elongated slot. A clamp plate is arranged in stacked alignment with said lands and a work piece is gripped between the clamp plate and the lands of the bed plate. This structure permits a cutting element to pass through the elongated slot to cut a keyway upon the work piece while said work piece is gripped, the cutting action being performed through the clamped area. Improvements include interchangeable spindle construction allowing the use of a variety of cutter elements.
Claims18
A portable milling machine comprising:
- a cutter head slidable along a feed path;
- a cutter drive means slidable with respect to said cutter head along a line having a component perpendicular to said feed path, said cutter drive means including motor means provided with a motor shaft and bearing means for rotatably supporting said motor shaft;
- a quill member and means for clamping said quill member to said motor means while coaxially receiving an end of said motor shaft;
- a spindle removably engagable with said end of said motor shaft, wherein said quill member is further provided with second bearing means for rotatably supporting said spindle, said spindle being adapted to receive a cutter;
- and
- a vertical feed screw coupling said clamping means and said cutter head, wherein said clamping means and said cutter head are coupled elements and said coupling is accomplished by rotatably supporting said vertical feed screw with one coupled element while threadably engaging said vertical feed screw with the other coupled element.
A portable milling machine adapted to be clamped directly to a fixed work piece, comprising:
- a bed plate defining an elongated cutting way between bifurcated portions having clamping lands for engaging the work piece;
- securing means for securing said work piece against said clamping lands;
- a cutter head slidable on the bed plate along a line defining a feed path;
- a power driven cutter means supported by said cutter head, said cutter means including motor means provided with a motor shaft and bearing means for rotatably supporting said motor shaft;
- a quill member and means for clamping said quill member to said motor means while coaxially receiving an end of said motor shaft;
- a spindle removably engagable with said end of said motor shaft, wherein said quill member is further provided with second bearing means for rotatably supporting said spindle, said spindle being adapted to receive a cutter;
- and
- a vertical feed screw rotatably supported by said clamping means, said feed screw being threadably engaged with said cutter head for relatively moving said quill member with respect to said bed plate.
A portable milling machine adapted to be clamped directly to a fixed work piece, comprising:
- a bed plate defining an elongated cutting way between bifurcated portions having clamping lands substantially along the length thereof for engaging the work piece;
- securing means for securing said work piece against said clamping lands;
- a cutter head with interlocking rail members slidably mating with rails on the bed plate and defining with said rails a feed path;
- a power driven cutter means supported by said cutter head, said cutter means including motor means provided with a motor shaft and bearing means for rotatably supporting said motor shaft;
- a cylindrical quill member and means for clamping said quill member to said motor means while coaxially receiving an end of said motor shaft;
- a spindle removably engagable with said end of said motor shaft, wherein said quill member is further provided with second bearing means for rotatably supporting said spindle, said spindle being adapted to receive a cutter;
- and
- a vertical lead screw rotatably supported by said clamping means, said lead screw being threadably engaged with said cutter head for relatively moving said quill member with respect to said bed plate.
A portable milling machine comprising:
- a cutter head slidable along a feed path;
- a cutter drive means slidable with respect to said cutter head along a line having a component perpendicular to said feed path, said cutter drive means including motor means provided with a motor shaft and bearing means for rotatably supporting said motor shaft;
- a quill member and means for clamping said quill member to said motor means while coaxially receiving an end of said motor shaft;
- and
- a vertical feed screw coupling said clamping means and said cutter head, wherein said clamping means and said cutter head are coupled elements and said coupling is accomplished by rotatably supporting said vertical feed screw with one coupled element while threadably engaging said vertical feed screw with the other coupled element.
Dependencies are inferred from the claim text.