Tool head for a pipe cutting machine

Abstract

The invention concerns a tool head with a housing ( 11 ), in which at least one thrusting wedge ( 31, 32, 33 ) is provided, able to move back and forth in the longitudinal direction (L) in a first toothed guide, which is coordinated with a support ( 21, 22, 23 ) in the housing ( 11 ), able to move in a second toothed guide in a transverse direction (R 1, R 2, R 3 ) transversely to the longitudinal direction (L), and the thrusting wedge ( 31, 32, 33 ) and the coordinated support ( 21, 22, 23 ) are in sliding contact with each other via a slanted contact surface ( 51, 52, 53 ) and a movement of the thrusting wedge ( 31, 32, 33 ) in the longitudinal direction (L) brings about a transverse movement of the coordinated support ( 21, 22, 23 ) via the slanted contact surface ( 51, 52, 53 ) and a cutting tool ( 161, 162, 163 ) can be fastened on the support ( 21, 22, 23 ) and the support ( 21, 22, 23 ) has a support arm ( 101, 102, 103 ) extending in the transverse direction (R 1, R 2, R 3 ).

1 . Tool head with
 a housing ( 11 ), in which   at least one thrusting wedge ( 31 ,  32 ,  33 ) is provided, able to move back and forth in the longitudinal direction (L) in a first toothed guide, which   is coordinated with a support ( 21 ,  22 ,  23 ) in the housing ( 11 ), able to move in a second toothed guide in a transverse direction (R 1 , R 2 , R 3 ) transversely to the longitudinal direction (L),   and the thrusting wedge ( 31 ,  32 ,  33 ) and the coordinated support ( 21 ,  22 ,  23 ) are in sliding contact with each other via a slanted contact surface ( 51 ,  52 ,  53 ) and a movement of the thrusting wedge ( 31 ,  32 ,  33 ) in the longitudinal direction (L) brings about a transverse movement of the coordinated support ( 21 ,  22 ,  23 ) via the slanted contact surface ( 51 ,  52 ,  53 ) and   a cutting tool ( 161 ,  162 ,  163 ) can be fastened on the support ( 21 ,  22 ,  23 ) and the support ( 21 ,  22 ,  23 ) has a support arm ( 101 ,  102 ,  103 ) extending in the transverse direction (R 1 , R 2 , R 3 ).   
   
   
       2 . Tool head per  claim 1 ,
 characterized in that   the housing ( 11 ) is fashioned essentially in circular shape in one cross section and a plurality of supports ( 21 ,  22 ,  23 ) is provided in the shape of a star in one cross section perpendicular to the lengthwise direction (L) and the support arms ( 101 ,  102 ,  103 ) are arranged in crossing manner, looking at them in the lengthwise direction (L).   
   
   
       3 . Tool head per  claim 2 ,
 characterized in that   precisely three supports ( 21 ,  22 ,  23 ) are provided.   
   
   
       4 . Tool head per  claim 1 ,
 characterized in that   the at least one thrusting wedge ( 31 ,  32 ,  33 ) has a first outer tooth profile ( 81 ,  82 ,  83 ) on opposite, radially extending outer walls, interacting with a first inner tooth profile on an inner wall of a thrusting wedge guide of the housing ( 11 ) of the first toothed guide.   
   
   
       5 . Tool head per  claim 1 ,
 characterized in that   the at least one support ( 21 ,  22 ,  23 ) has a second outer tooth profile ( 111 ,  112 ,  113 ) on opposite, radially extending walls, interacting with a second inner tooth profile on an inner wall of a support guide of the housing ( 11 ).   
   
   
       6 . Tool head per  claim 1   characterized in that   the thrusting wedges ( 31 ,  32 ,  33 ) are identical in construction.   
   
   
       7 . Tool head per  claim 1   characterized in that   the at least one thrusting wedge ( 31 ,  32 ,  33 ) has a constant design height.   
   
   
       8 . Tool head per  claim 1   characterized in that   the part of the at least one support ( 21 ,  22 ,  23 ) provided in the housing ( 11 ) has a constant design height.   
   
   
       9 . Tool head per  claim 1 ,
 characterized in that   the design height of the thrusting wedge ( 31 ,  32 ,  33 ) is less than the design height of the corresponding support ( 21 ,  22 ,  23 ) by the depth of the second tooth profile ( 111 ,  112 ,  113 ).   
   
   
       10 . Tool head per  claim 1   characterized in that   the at least one thrusting wedge ( 31 ,  32 ,  33 ) and/or the at least one support ( 21 ,  22 ,  23 ) are each coordinated with a return spring ( 61 ,  62 ,  63 ,  151 ,  152 ,  153 ).   
   
   
       11 . Tool head per  claim 1   characterized in that   a necking tool ( 170 ) is provided on one support ( 21 ,  22 ,  23 ) with a roller ( 171 ) which can turn about an axis arranged a lengthwise direction and a bench chisel ( 172 ) is arranged on the roller ( 171 ) at the side facing the support ( 21 ,  22 ,  23 ), whose tip projects radially beyond the diameter of the roller ( 171 ).   
   
   
       12 . Machine per  claim 1  for machining of the ends of a rodlike profile material with a tool head ( 10 ). 
   
   
       13 . Machine per  claim 12 ,
 characterized in that   the tool head ( 10 ) is mounted on a rotary transmission leadthrough.   
   
   
       14 . Method for machining the ends of a rodlike profile material ( 150 ), in that a radial relief turning ( 160 ) is produced in one wall of the profile material ( 150 ). 
   
   
       15 . Method per  claim 14 ,
 characterized in that   the at least one support ( 21 ,  22 ,  23 ) for the machining of an outer wall of the profile material is at first moved radially outward or that for the machining of an inner wall of the profile material is at first moved radially inward.   
   
   
       16 . Method per  claim 14 ,
 wherein a cutting tool ( 161 ,  162 ,  163 ) is led up in the lengthwise direction of the profile material ( 150 ) behind one end face of the profile material ( 150 ) without contacting it, the cutting tool ( 161 ,  162 ,  163 ) is rotated relative to the profile material ( 150 ) about a lengthwise axis oriented in the longitudinal direction and the cutting tool ( 161 ,  162 ,  163 ) is moved radially toward the wall during the rotation until the wall is contacted by the cutting tool ( 161 ,  162 ,  163 ), and a relief turning ( 160 ) is made in the wall by the contacting.