END-KNURLING DEVICE

摘要

An improved knurling device (20) includes a body (21) having an axis of elongation (x-x), and has a first part (22) and a second part (23). The body first part has axially-spaced front and center plates (24, 25, respectively). The body second part is mounted on the center plate, and is selectively rotatable about the axis relative to the center plate. A plurality of knurl rolls (26, 26, 26) are mounted on the body first part between the front and center plates. An arbor (28) is axially mounted on the body second part, and is biased to move toward the front plate. The end of a rotating workpiece (W) is adapted to be axially inserted through the front plate and moved toward the body second part to accelerate a master pinion (29) to the angular speed of the workpiece, and to roll a knurl pattern on the outer surface of the workpiece as the workpiece is progressively moved toward further toward the body second part.

主权项

1. A knurling device, comprising:
a body having an axis of elongation, and having a first part and a second part; said body first part having axially-spaced annular front and center plates; said body second part being mounted on said center plate and being selectively rotatable about said axis relative to said center plate; a plurality of knurl rolls mounted on said body first part between said front and center plates, the radial spacing of said knurl rolls from said axis being a function of the relative position between said first and second body parts; an arbor axially mounted on said body second part and biased to move toward said front plate; a master pinion rotatably mounted on said arbor and having an outer surface adapted to selectively engage the outer surface of each of said knurl rolls; and wherein the end of a rotating workpiece is adapted to be axially inserted through said front plate and moved toward said body second part to accelerate said master pinion to the angular speed of said workpiece, and to roll a knurl pattern on the outer surface of said workpiece as said workpiece is moved toward further toward said body second part.