Patent · US Expired

Generating head cutting tool

US4852438A · kind A · utility

3Cited by
2References
13Claims
0Family size

Assignee

Inventor

Key dates

Filing dateSep 11, 1987
Grant dateAug 1, 1989
Priority date
Expiry dateSep 11, 2007

Classification

  • Technology area (CPC Y)Emerging Cross-Sectional Technologies
  • CPC primaryY10T82/2529
  • WIPO fieldMachine tools
  • WIPO sectorMechanical engineering

Abstract

A rotary tool generating head with radial tool slide feed-out produced by differential rotation of central shaft. A harmonic drive gear having a stationary axle and a servo motor driven rotary axle is used to produce zero feedout of the radial slide when the servo driven axle is stationary. Servo controlled radial tool displacement occurs through rotation of the servo driven axle with a substantial reduction in rotational speed with respect to the stationary axle, e.g., in the order of 97:1.

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