Invention Grant
US07861572B2 Method and device for making at least partly profiled tubes 有权
用于制造至少部分成型管的方法和装置

  • Patent Title: Method and device for making at least partly profiled tubes
  • Patent Title (中): 用于制造至少部分成型管的方法和装置
  • Application No.: US10570389
    Application Date: 2003-09-05
  • Publication No.: US07861572B2
    Publication Date: 2011-01-04
  • Inventor: Peter Geser
  • Applicant: Peter Geser
  • Applicant Address: CH Mannedorf
  • Assignee: Ernst Grob AG
  • Current Assignee: Ernst Grob AG
  • Current Assignee Address: CH Mannedorf
  • Agency: Antonelli, Terry, Stout & Kraus, LLP.
  • International Application: PCT/CH03/00601 WO 20030905
  • International Announcement: WO2005/023454 WO 20050317
  • Main IPC: B21D41/00
  • IPC: B21D41/00
Method and device for making at least partly profiled tubes
Abstract:
A method and device are disclosed for producing tubes that are at least partially profiled on their interior and preferably on their exterior from a hollow cylindrical blank (3), using a mechanical cold forming method, wherein the end of the blank (3) that is not to be machined (3′) is fed to a clamping device (10). The blank (3) is then secured in the clamping device (10) and a mandrel (2) is subsequently inserted into the end of region (3) of the blank (3) that is to be machined. A lance (8) is guided in the mandrel so that it can be coaxially displaced in a longitudinal direction and the free end of the lance (8′) can be introduced into the clamping device (10). The tip (8′) of the lance (8) is then brought into a positive fit with the clamping device (10) in the axial direction of the blank (3) and the mandrel (2), together with the clamping device (10) and the blank (3) is guided axially through a fixed machining point (6). Radial exterior machining of the surface of the blank (3) along the section that is to be machined (3′) takes place at the machining point (6), to create the interior and exterior profiling of the blank (3). During the process, the mandrel (2) is preferably rotated about its axis in an intermittent manner.
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