Hard finish machine for hard finishing of a workpiece

Abstract

The invention relates to a hard finish machine ( 1 ) for hard finishing of a workpiece ( 2 ), comprising at least two different hard finish tools ( 3, 4 ) which are arranged on a tool spindle ( 5 ), wherein the tool spindle ( 5 ) is arranged movable in the direction (Y) of its axis ( 6 ) on a tool carrier ( 7 ), wherein the tool carrier ( 7 ) is translational movable relatively to a machine bed ( 8 ) and wherein the hard finish machine furthermore comprises cooling lubricant supplying means ( 9 ) for the supply of cooling lubricant to the machining region between the workpiece ( 2 ) and the hard finish tool ( 2, 3 ). To work in all possible tool and method combinations with optimized cooling lubricant supply conditions the invention proposes that the cooling lubricant supplying means ( 9 ) comprise at least one nozzle element ( 10 ), wherein the nozzle element ( 10 ) comprises at least two nozzle chambers ( 11, 12 ) each having a stream exit opening ( 13, 14 ), wherein the at least two stream exit openings ( 13, 14 ) are arranged at the same working position in the direction (Y) of the axis ( 6 ) of the tool spindle ( 5 ) and wherein the nozzle element ( 10 ) is movable in a plane (E) which is perpendicular to the axis ( 6 ) of the tool spindle ( 5 ).

1 . A hard finish machine for hard finishing of a workpiece, comprising at least two different hard finish tools which are arranged on a tool spindle, wherein the tool spindle is arranged movable in a direction of an axis on a tool carrier, wherein the tool carrier is translational movable relatively to a machine bed and wherein the hard finish machine furthermore comprises cooling lubricant supplying means for a supply of cooling lubricant to a machining region between the workpiece and the hard finish tool,
 wherein   the cooling lubricant supplying means comprise at least one nozzle element, wherein the nozzle element comprises at least two nozzle chambers each having a stream exit opening, wherein each stream exit opening is arranged at a same working position in the direction of the axis of the tool spindle and wherein the nozzle element is movable in a plane which is perpendicular to the axis of the tool spindle.   
     
     
         2 . The hard finish machine according to  claim 1 , wherein the nozzle element has at least two separate nozzle bodies each having a nozzle chamber, wherein each stream exit opening is arranged at an outlet end of the nozzle bodies. 
     
     
         3 . The hard finish machine according to  claim 1 , wherein the nozzle element has a single nozzle body with the at least two nozzle chambers, wherein the each stream exit opening is arranged at an outlet end of the nozzle body. 
     
     
         4 . The hard finish machine according to  claim 1 , wherein a form of each stream exit opening is different. 
     
     
         5 . The hard finish machine according to  claim 4 , wherein each stream exit opening has a rectangular shape. 
     
     
         6 . The hard finish machine according to  claim 4 , wherein differences in the form relate to a width and a height of each stream exit opening. 
     
     
         7 . The hard finish machine according to  claim 1 , wherein each stream exit opening is arranged symmetrically to a plane which is perpendicular to the axis of the tool spindle. 
     
     
         8 . The hard finish machine according to  claim 1 , wherein the nozzle element is arranged pivotable around an axis which is parallel to the axis of the tool spindle. 
     
     
         9 . The hard finish machine according to  claim 1 , wherein the nozzle element is arranged translational movable in a plane which is perpendicular to the axis of the tool spindle. 
     
     
         10 . The hard finish machine according to  claim 9 , wherein the nozzle element is arranged movable on a linear guide. 
     
     
         11 . The hard finish machine according to  claim 1 , wherein the nozzle element is arranged stationary in the direction of the axis of the tool spindle at or on the tool carrier. 
     
     
         12 . The hard finish machine according to  claim 1 , wherein the nozzle element is arranged movable on a linear guide in the direction of the axis of the tool spindle relatively to the tool carrier. 
     
     
         13 . The hard finish machine according to  claim 1 , wherein the nozzle element is arranged stationary in the direction of the axis of the tool spindle at or on the machine bed. 
     
     
         14 . The hard finish machine according to  claim 1 , wherein the nozzle element is arranged movable on a linear guide in the direction of the axis of the tool spindle relatively to the machine bed. 
     
     
         15 . The hard finish machine according to  claim 1 , wherein the hard finish tools are gear machining tools. 
     
     
         16 . The hard finish machine according to  claim 15 , wherein the hard finish tools are a grinding a wheel or grinding worm.