Screw device and method of manufacturing the same

Screw device and method of manufacturing the same

  • CN 1,965,181 A
  • Filed: 04/08/2005
  • Published: 05/16/2007
  • Est. Priority Date: 04/08/2004
  • Status: Active Application
First Claim
Patent Images

1. feed screw apparatus comprises:

  • Lead screw shaft has spiral rolling member rolling groove on its outer circumferential face;

    Nut, has at least one one winding groove within it on the side face, this one winding groove is made up of a load rolling member rolling groove and a rolling member circle groove, local all numbers of this load rolling member rolling groove institute tool are less than week of groove and corresponding to the rolling member rolling groove of lead screw shaft, this rolling member circle groove couples together an end and the other end of load rolling member rolling groove;

    A plurality of rolling members, their are settled and are contained between the load rolling member rolling groove and rolling member circle groove of the rolling member rolling groove of lead screw shaft and nut,Wherein to carrying out cutting after the inner peripheral surface heat treatment in advance, thereby the load rolling member rolling groove and the rolling member circle groove of nut formed on the inner peripheral surface.

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