Method for producing a spindle nut for a ball screw

摘要

A spindle nut for a ball screw is provided, having a continuous ball track (1) for balls (2), a ball groove (3,14) for the balls (2) extending on an inner periphery of the spindle nut about the rotational axis thereof and along a helical line, the ball groove extending across at least one thread (4), and a diversion device (5), in order to divert with its diverting channel (9) balls (2) from one end of the thread (4) to the beginning of the thread (4). The spindle nut is provided with ball inlets (13, 16), on the one side connected to the ball groove (3, 14) and, on the other side connected to the diverting channel (9), with the ball groove (3, 14) and the ball inlet (13, 16) both having identical cross-sectional profiles.

主权项

1. A method for producing a spindle nut for a ball screw, the spindle nut having a ball groove for balls incorporated at an inner periphery of the spindle nut, the ball groove extending over at least one thread and extending around a rotational axis of the spindle nut along a helical line, the method comprising:
using a single tool to form the ball groove and a ball inlet; moving the tool radially outwardly in order to remove more material from the spindle nut to form the ball inlet, the moving step beginning at a first point of the ball groove and ending at a second point of the ball groove, the locations of the first and second points each depending on a relative rotary progress of the tool in reference to the spindle nut; reversing the radially outward movement of the tool, and further processing of the ball groove, wherein the moving step and/or the reversing the radially outward movement step form the ball inlet; and forming an opening that extends to the ball inlet, the opening being located at an outer periphery of the spindle nut between the first and second points.