发明授权
- 专利标题: Method of forming a helical ball screw member
- 专利标题(中): 形成螺旋滚珠丝杠构件的方法
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申请号: US578379申请日: 1984-02-08
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公开(公告)号: US4638548A公开(公告)日: 1987-01-27
- 发明人: Michael A. Miller
- 申请人: Michael A. Miller
- 申请人地址: MI Sterling Heights
- 专利权人: 20th Century Machine
- 当前专利权人: 20th Century Machine
- 当前专利权人地址: MI Sterling Heights
- 主分类号: B23G1/02
- IPC分类号: B23G1/02 ; B23G1/36 ; B23P13/02 ; F16H25/22 ; B23P13/04 ; B24B5/00 ; F16H1/14
摘要:
A method of forming a ball screw member from an elongated workpiece having an outer cylindrical surface, as well as the ball screw member formed by the method. A helical ball screw thread is machined on the outer cylindrical surface, the helical ball screw thread having a helical groove and a helical crest surface. An end journal or other end treatment is formed in the workpiece, the end journal or other end treatment being located during the forming operation relative to the helical crest surface. The outer cylindrical surface of the workpiece may be centerless ground prior to the machining of the helical ball screw thread. The helical crest surface may be ground after the machining of the helical ball screw thread to provide increased concentricity between components of the ball screw member. A high precision ball screw member may be formed from the ball screw member by performing a regrinding operation on the helical groove, the regrinding operation being positioned relative to the helical crest surface.
公开/授权文献
- US5062397A Valve stem seal 公开/授权日:1991-11-05
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