Turret lathe

In a turret lathe for machining a workpiece by engaging the workpiece with tools while rotating said workpiece about a horizontal spindle axis, the combination comprising, a bed, a pair of bed ways supported on the bed in a horizontal plane, said bed ways being parallel to the spindle axis but offset to the rear thereof, a carriage mounted for rectilinear translation on the bed ways, the carriage having a pair of slide ways defining a slant plane parallel to the spindle axis but inclined with respect to the vertical away from the spindle axis, a tool slide mounted for rectilinear translation on the slide ways, a turret on the tool slide having a turret axis intersecting the spindle axis but skewed with respect thereto, the turret having first and second stacked toolholders sharing the turret axis, the toolholders being frusto-conical in shape with the conical taper being adapted to compensate for the skew of the turret.

In a turret lathe for machining a workpiece by engaging the workpiece with tools while rotating said workpiece about a horizontal spindle axis, the combination comprising, a supporting bed, a pair of bed ways supported by the bed in a horizontal plane, the bed ways being parallel to the spindle axis and offset to the rear thereof, a carriage mounted for rectilinear translation on the bed ways, the carriage including a pair of parallel generally upwardly directed slide ways supported on the face thereof, the slide ways defining a plane parallel to the spindle axis but inclined from the vertical, a tool slide mounted for rectilinear translation on the slide ways, a turret on the tool slide and having a turret axis intersecting the spindle axis but inclined at an acute angle thereto, the turret having first and second tool blocks arranged in stacked configuration with the tool block axes common to the turret axis, the tool blocks being frusto-conical in shape with a plurality of regularly spaced flats formed on the conical surface thereof, the angle of taper of the cones being complementary to the angle of skew of the turret axis, and means for indexing the turret to bring a selected tool into a non-skewed operative position with respect to the spindle axis.

A turret lathe comprising in combination, a bed, a headstock affixed to the bed, a spindle supported for rotation within the headstock, a spindle drive, a chuck secured to the spindle for engaging a workpiece thereby to rotate the workpiece about the spindle axis, a pair of bed ways supported by the bed in a horizontal plane, said bed ways being parallel to but offset behind the spindle axis, a carriage mounted on the bed ways, a carriage drive for translating the carriage along the bed ways, a pair of parallel slide ways on the front face of the carriage, the slide ways defining a plane which is parallel to the spindle axis but rearwardly inclined from the vertical, a tool slide mounted on the slide ways, a slide drive for translating the tool slide along the slide ways, a turret mounted for rotation on the tool slide and having a turret axis parallel to the plane of the slide ways and intersecting the spindle axis at an acute angle, tool holding means for holding a plurality of tools, the tool holding means being affixed to the turret for rotation thereby to index a selected tool into an operative position, the tool holding means being angularly formed for compensating for the skewed turret axis.

A turret lathe comprising in combination, a bed, a headstock affixed to the bed, a spindle supported for rotation within the headstock, a spindle drive, a chuck secured to the spindle for engaging a workpiece thereby to rotate the workpiece about the spindle axis, a pair of bed ways supported by the bed in a horizontal plane, said bed ways being parallel to but offset behind the spindle axis, a carriage mounted on the bed ways, a carriage drive for translating the carriage along the bed ways, a pair of parallel slide ways on the front face of the carriage, the slide ways defining a plane which is parallel to the spindle axis but rearwardly inclined from the vertical, a tool slide mounted on the slide ways, a slide drive for translating the tool slide along the slide ways, a turret mounted for rotation on the tool slide, tool holding means for holding a plurality of tools, the tool holding means being affixed to the turret for rotation thereby to index a selected tool into an operative position.