US 4,359,301 A · Machine for the precision working, for example shaving, of tooth flanks

Abstract

A machine for precision working, for example shaving, of the tooth flanks of a toothed workpiece supported rotatably on a machine frame. A tool carrier carries a multi-toothed tool, for example a shaving cutter, and is supported substantially above the workpiece for rotative adjustment of the crossing of the axes of the workpiece and tool, about an axis perpendicular to the workpiece axis. The tool carrier is guided movably in a guide carrier and is driven for longitudinal feeding of the tool. The guide carrier is suspended swingably about a horizontal axis for spherical or conical tooth working. The guide carrier is supported pendantly from a swivel plate which is swingable and lockable about an axis perpendicular to the workpiece axis for adjusting the feed direction. The tool carrier is guided by a guide arm which is adjustable in its inclination and is securable by a pivot member on the swivel plate. Structure is provided for cancelling a portion of the feed movement of the tool toward the workpiece, and the guide arm comprises an inclined swivel guide bar which produces such feed movement of the tool toward the workpiece in response to longitudinal movement of the tool carrier.

Claims16

Dependent claims

A machine for precision working of tooth flanks on a toothed workpiece rotatably supported in a machine frame, comprising

frame means;
adjusting carriage means and swivel plate means for pivotally suspending said adjusting carriage means from said frame means and for movement about a first axis, said adjusting carriage means including a guide carrier suspended from said swivel plate means, a feed carriage movably mounted on said guide carrier, and a tool rotatably mounted on said feed carriage, the movement of said feed carriage effecting a movement of said tool across the width of said workpiece;
first control means for effecting a smooth and continuously varying tilting of said feed carriage, said guide carriage and the axis of rotation of said tool in a plane about an axis perpendicular to said plane in response to a movement of said feed carriage and said tool thereon across the width of said workpiece;
and
second control means for smoothly and continuously cancelling a portion of the movement of said tool toward said workpiece occurring over a selected segment on opposite sides of a central position of said tilting movement of said tool whereby a smooth and continuously varying crowned surface is produced on said teeth of said workpiece.

2 more elements

Dependencies are inferred from the claim text.

Machine for the precision working, for example shaving, of tooth flanks

Life of this patent

Machine for the precision working, for example shaving, of tooth flanks

Life of this patent

Abstract

Claims16