Swaging machine

Abstract

A swaging machine comprising an inner die assembly and an outer die assembly. The inner die assembly includes die parts that are configured to fit together to form an adjustable cylindrical die set that contacts an inside surface circumventing a cylindrically-shaped work piece mounted around the adjustable cylindrical die set. The outer die assembly includes one or more moveable dies that are each configured, at any given moment, to contact a single tangential plane passing through an outside surface of the cylindrically-shaped work piece.

1 . A swaging machine, comprising:
 an inner die assembly, including die parts that are configured to fit together to form an adjustable cylindrical die set that contacts an inside surface circumventing a cylindrically-shaped work piece mounted around the adjustable cylindrical die set; and   an outer die assembly, including one or more moveable dies that are each configured, at any given moment, to contact a single tangential plane passing through an outside surface of the cylindrically-shaped work piece.   
     
     
         2 . The machine of  claim 1 , wherein the adjustable cylindrical die set is configured to rotate. 
     
     
         3 . The machine of  claim 1 , wherein the inner die assembly is attached to a platform of the machine, the platform configured to rotate. 
     
     
         4 . The machine of  claim 1 , wherein outer walls of the die parts facing the cylindrically-shaped work piece include one or more grooves or protrusions. 
     
     
         5 . The machine of  claim 1 , wherein the moveable dies are configured to be laterally adjustable so as to move in and out of contact with the outside surface of the cylindrically-shaped work piece. 
     
     
         6 . The machine of  claim 1 , wherein the one or more moveable dies are configured as roller dies. 
     
     
         7 . The machine of  claim 6 , wherein the roller dies are configured as cylindrical rollers whose outer surface is configured to contact the single tangential plane. 
     
     
         8 . The machine of  claim 6 , wherein one or more grooves or protrusions circumscribe the outer wall the roller dies. 
     
     
         9 . The machine of  claim 1 , wherein at least one of the moveable dies is configured as a hole-punch die. 
     
     
         10 . The machine of  claim 1 , wherein the cylindrically-shaped work piece is a vent pipe section for a chimney. 
     
     
         11 . The machine of  claim 1 , wherein the inner die assembly includes two different one of the adjustable cylindrical die sets which are configured to cooperate with the same outer die assembly to shape a male end and a female end of the cylindrically-shaped work pieces, respectively, wherein the male end of one of the cylindrically-shaped work pieces is configured to fit within the female end of another one of the cylindrically-shaped work pieces. 
     
     
         12 . The machine of  claim 1 , wherein the inner die assembly includes:
 the adjustable cylindrical die set; and   a second adjustable cylindrical die set, wherein:   the second adjustable cylindrical die set has a smaller radius than the adjustable cylindrical die set, and   the second adjustable cylindrical die set is configured to accommodate a second cylindrically-shaped work piece there-around.   
     
     
         13 . The machine of  claim 1 , wherein the second adjustable cylindrical die set is configured to be seated on the adjustable cylindrical die set. 
     
     
         14 . The machine of  claim 1 , wherein the outer die assembly includes:
 a first one of the moveable dies that is configured to contact the single tangential plane of an outside surface of the cylindrically-shaped work piece; and   a second one of the moveable dies that is configured, at any given moment, to contact a second single tangential plane of an outside surface of a second cylindrically-shaped work piece, wherein the second cylindrically-shaped work piece has a smaller radius than the cylindrically-shaped work piece.   
     
     
         15 . A method of shaping a work piece, comprising:
 mounting a portion of a cylindrically-shaped work piece between an inner die assembly and an outer die assembly of a swaging machine, wherein:
 the inner die assembly includes die parts that are configured to fit together to form an adjustable cylindrical die set that contacts an inside surface circumventing a cylindrically-shaped work piece mounted around the adjustable cylindrical die set, and 
 the outer die assembly includes one or more moveable dies that are each configured, at any given moment, to contact a single tangential plane passing through an outside surface of the cylindrically-shaped work piece; 
   rotating at least one of the adjustable cylindrical die set or the outer die assembly around a central axis of the adjustable cylindrical die set; and   applying a contact force to the tangential plane passing through the cylindrically-shaped work piece via a portion of the adjustable cylindrical die set and at least one of the moveable dies.   
     
     
         16 . The method of  claim 15 , wherein, the outer die assembly is fixed in place and the adjustable cylindrical die set is configured to rotate. 
     
     
         17 . The method of  claim 15 , wherein, the rotating of one the both the outer die assembly or the adjustable cylindrical die set is continued while applying the contact force. 
     
     
         18 . The method of  claim 15 , wherein the rotating includes a series of indexed rotations, and the contact force is applied in-between each of the indexed rotations. 
     
     
         19 . A method of assembling a swaging machine, comprising:
 providing an inner die assembly, including fitting die parts together to form an adjustable cylindrical die set that is configured to contact an inside surface of a cylindrically-shaped work piece mounted around the adjustable cylindrical die set; and   providing an outer die assembly, including one or more moveable dies that are each configured, at any given moment, to contact a single tangential plane passing through an outside surface of the cylindrically-shaped work piece.   
     
     
         20 . The method of  claim 19 , wherein:
 providing the inner die assembly including attaching the adjustable cylindrical die set to a platform that is configured to rotate around a central axis of the adjustable cylindrical structure; and   providing the outer die assembly includes positioning the outer die assembly at fixed location outside an outer edge of the platform.