Machining unit with rotary head carrying pivoting tools
US5207136A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Nov 20, 1991 |
| Grant date | May 4, 1993 |
| Priority date | — |
| Expiry date | Nov 20, 2011 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T82/2527
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A machining unit, in particular in a numerically controlled lathe, has a rotary head equipped with four pivoting tools for machining parts which pass axially through this head without rotating. Each tool is mounted on a respective pivoting support (6a-6d) provided with a helicoidal guiding surface (26a-26d) the axis of which coincides with the pivoting axis (7a-7d) of the support. The four tools are controlled by means of two concentric annular sockets (30, 42) controlled in translation. The inner socket (30) has two outer surfaces which rest against the guiding surfaces (26a, 26b) of two of the supports. The guiding surfaces are helixes of opposite pitch, and therefore one of the corresponding tools moves toward the part as the second tool moves away from it. The outer socket (42) controls the other two tools in the same manner.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.