Modular machine tool for machining bars, comprising a frame with four tool supporting units

An apparatus for working an object with at least one working tool, comprising:

• a feeding-in section;
• a feeding-out section;
• a moving arrangement for moving the object along a path from the feeding-in section to the feeding out section;
• a working section operably located between the feeding-in section and feeding-out section, comprising;
• a) a polygonal frame array having an open central portion, the path of the object passing through said open portion of said frame array;
• i) a first side of said frame array comprising a first module including:
• a first means for holding a working tool,
• a first connecting means for movably connecting said first working tool holding means to said first side of said frame array and operable for selectively moving said first working tool holding means relative to said first side of said frame array in a first direction substantially parallel to said path, in a second direction substantially perpendicular to said path, and in a third direction comprising an arc defined radially about an axis defined substantially parallel to said path so as to selectively move a working tool held by said first holding means in one or a concurrent plurality of said first, second and third directions for working an object;
• ii) a second side of said frame array comprising a second module including:
• a second means for holding a working tool,
• a second connecting means for movably connecting said second working tool holding means to said second side of said frame array and operable for selectively moving said second working tool holding means relative to said second side of said frame array in said first direction substantially parallel to said path, in said second direction substantially perpendicular to said path, and in said third direction comprising an arc defined radially about an axis defined substantially parallel to said path so as to selectively move a working tool held by said second holding means in one or a concurrent plurality of said first, second and third directions for working an object;
• said first working tool holding means and said second working tool holding means being operably independently moveable for moving their respective working tool holding means into close proximity relative to each other and to the object.