Working method for workpiece and polishing machine brush and tool holder used therefor

Abstract

An object is to provide a working method capable of efficiently deburring and polishing a workpiece and making the life of a brush in use long in a machine tool not having power to directly rotate a tool and capable of working the workpiece by bringing the tool and the workpiece in contact with each other while causing the tool and the workpiece to perform a relative motion. The present invention relates to a working method of working a workpiece by rotating a brush-like grinding wheel by causing a brush-like grinding wheel and a workpiece to perform a relative motion while bringing the brush-like grinding wheel and the workpiece in contact with each other in a machine tool not having power to rotate a tool.

1 . A working method for a workpiece, the working method comprising:
 rotating a brush-like grinding wheel by causing the brush-like grinding wheel and the workpiece to perform a relative motion while bringing the brush-like grinding wheel and the workpiece in contact with each other in a machine tool not having power to rotate a tool.   
     
     
         2 . The working method according to  claim 1 , wherein a portion to which a driving force is transmitted by coming in contact with the workpiece and a portion where a deburring function occurs by coming in contact with an edge portion of the workpiece are different on a tip end surface of the brush-like grinding wheel. 
     
     
         3 . The working method according to  claim 1 , wherein the relative motion is a motion of the workpiece. 
     
     
         4 . The working method according to  claim 3 , wherein the motion of the workpiece is a rotary motion. 
     
     
         5 . The working method according to  claim 4 , comprising:
 rotating the brush-like grinding wheel in the same direction as a rotating direction of the workpiece by bringing the brush-like grinding wheel in contact with the workpiece from an end surface of the workpiece, the end surface being orthogonal to an axis of rotation of the workpiece.   
     
     
         6 . The working method according to  claim 4 , comprising:
 rotating the brush-like grinding wheel in an opposite direction to a rotating direction of the workpiece by bringing the brush-like grinding wheel in contact with the workpiece from an end surface of the workpiece, the end surface being orthogonal to an axis of rotation of the workpiece.   
     
     
         7 . The working method according to  claim 4 , comprising:
 bringing the brush-like grinding wheel in contact with the workpiece such that a contact surface of the brush-like grinding wheel with the workpiece becomes asymmetrical to an axis of symmetry, in a case where a straight line passing through a rotation center on the tip end surface of the brush-like grinding wheel and parallel to a direction of a force received by the brush-like grinding wheel from the workpiece is defined as the axis of symmetry.   
     
     
         8 . The working method according to  claim 3 , wherein the motion of the workpiece is a linear motion. 
     
     
         9 . The working method according to  claim 1 , wherein the relative motion is an orbital motion of the brush-like grinding wheel. 
     
     
         10 . The working method according to  claim 1 , wherein the relative motion is a linear motion of the brush-like grinding wheel. 
     
     
         11 . A polishing machine brush comprising:
 a brush-like grinding wheel including linear grinding materials and a holder that holds the linear grinding materials;   a grasping member that grasps the brush-like grinding wheel in a rotatable state by supporting a rear end side of the holder; and   a fixing jig connected with the grasping member and used for fixing the grasping member to a machine tool.   
     
     
         12 . A tool holder comprising:
 a grasping member that grasps a tool in a rotatable state; and   a fixing jig for fixing the grasping member to a machine tool, wherein   the fixing jig includes an axial position adjustment member and a fixed member to be fixed to the machine tool, and   the grasping member is connected with the axial position adjustment member, the axial position adjustment member is connected with the fixed member via a connection member, the axial position adjustment member is rotatable about the connection member as an axis, and a position of an axis of rotation of a tool in contact with a workpiece is adjustable by the axial position adjustment member.