Apparatus for coupling tool holders
AssigneeDeVlieg-Bullard, Inc.
InventorsJames G. Zeilinger, Leon O. Kern
Life of this patent
Estimating the term…
Abstract
Apparatus for coupling a tool holder to a machine tool spindle wherein the tool holder is fitted to a coupling interposed between the tool holder and the spindle. The coupling and the tool holder have separable fasteners for separably joining the tool holder and coupling together. The coupling can accommodate tool holders having dissimilar fasteners and the tool holder can be fitted to couplings having dissimilar fasteners.
Claims13
A coupling for connecting to a machine tool spindle a selected one of a number of tool holders each of which has coupling means different from the remainder of said tool holders, said coupling comprising:
- a. a body having opposite ends;
- b. means at one end of said body for connection to said spindle;
- c. an annular wall at the opposite end of said body forming a socket having a bore open at least at one end thereof;
- d. a first opening extending radially through said wall;
- e. a concave, radial recess in said bore diametrally opposed to said first opening and in communication only with said bore;
- f. a second opening extending radially through said wall and interposed between said first opening and said recess;
- and
- g. a pair of fastening members, one of which is accommodated in said first opening and the other of which is accommodated in said second opening, and
- h. at least one of said fastening members being of such length as to enable one end thereof to project into said bore.
A coupling for connecting to a machine tool spindle a tool holder having a cylindrical extension provided at one end thereof with a transverse bore through which slideably extends a pin terminating at one end in a projecting nose and at its opposite end in a cavity, said coupling comprising:
- a. a body having opposite ends;
- b. means at one end of said body for connection to said spindle;
- c. an annular wall at the opposite end of said body forming a cylindrical socket accommodating said extension;
- d. a first opening in said wall;
- e. a recess in said wall diametrally opposite said first opening;
- f. a second opening in said wall interposed between said recess and said first opening;
- and
- g. a fastening member accommodated in said first opening in engagement with said opposite end of said pin and seating the nose of said pin in said recess.
A coupling for connecting to a machine tool spindle a selected one of a number of tool holders each of which has a cylindrical extension at one end thereof, the extension of one of said holders having a transverse bore through which extends a pin terminating at one end in a projecting nose and at its other end in a cavity, the extension of another of said holders having therein first and second diametrally opposite recesses and a third recess circumferentially spaced from said first and second recesses, said coupling comprising:
- a. a body having opposite ends;
- b. means at one end of said body for connection to said spindle;
- c. an annular wall at the opposite end of said body forming a socket having a bore for the accommodation of said extension;
- d. a first opening extending radially through said wall;
- e. a second opening extending radially through said wall and circumferentially spaced from said first opening,
- f. the circumferential spacing between said first and second openings corresponding to the circumferential spacing of said third recess from said first and second recesses;
- g. a recess in said bore diametrally opposite said first opening for receiving the nose of said pin;
- h. a first fastening member for reception in said first opening and accommodation in the cavity at said other end of said pin;
- and
- i. a second fastening member for reception in said second opening and accommodation in said third recess.
Dependencies are inferred from the claim text.