发明申请
- 专利标题: Screw thread cutting apparatus and method
- 专利标题(中): 螺纹切割装置及方法
-
申请号: US10877854申请日: 2004-06-25
-
公开(公告)号: US20050286984A1公开(公告)日: 2005-12-29
- 发明人: Gary Weise , Richard Kesl
- 申请人: Gary Weise , Richard Kesl
- 专利权人: Thermocraft Industries
- 当前专利权人: Thermocraft Industries
- 主分类号: B23C3/32
- IPC分类号: B23C3/32 ; B23G5/18 ; B23Q3/06
摘要:
A thread cutting milling tool comprises a shank with a working portion formed with a recess for receiving a thread cutting insert. The thread cutting insert has one edge formed with a line of thread-form teeth of identical profile. The thread cutting teeth project laterally for cutting engagement with a work-piece while the tool spins about its axis. The tool also orbits within or about a work piece, and in one orbit of the tool in a helical cutting path relative to the work piece a number of complete turns of the screw-thread are formed which is equal to the number of teeth of the insert in engagement with the work-piece. A secondary cutter carried on the thread cutting milling tool provides for formation of a pilot portion or counter bore on the work piece at an end of the screw thread. The pilot portion or counter bore provides for alignment of a threaded member which is to engage the screw thread. Also, the secondary cutter provides for formation of a blunt or scalloped full-thread starting end for the screw thread at the pilot portion. The blunt starting end for the screw thread is robust, resists damage, and resists cross threading.
公开/授权文献
- US07044692B2 Screw thread cutting apparatus and method 公开/授权日:2006-05-16