Patent · US Expired

Thread grinding machine

US4142330A · kind A · utility

1Cited by
3References
13Claims
0Family size

Assignee

Inventor

Key dates

Filing dateNov 25, 1977
Grant dateMar 6, 1979
Priority date
Expiry dateNov 25, 1997

Classification

  • Technology area (CPC Y)Emerging Cross-Sectional Technologies
  • CPC primaryY10T409/300672
  • WIPO fieldMachine tools
  • WIPO sectorMechanical engineering

Abstract

A thread grinding machine comprising a headstock movable to-and-fro upon a machine frame. This to-and-fro movement is generated by a threaded rod driven by a spindle and transmission means and a rod member pivotably mounted at one end in a fixed adjustment arm of the headstock and at the other end guided to be axially and pivotably movable at the threaded rod. The rod member is also guided to be axially displaceable in a guide element pivotably mounted in a bearing block adjustably connected with the machine frame. A control device reverses the direction of rotation of the driven spindle.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.