Electrospindle with integrated feed with automatic tool holder change
US12318848B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Dec 15, 2020 |
| Grant date | Jun 3, 2025 |
| Priority date | — |
| Expiry date | Jul 7, 2042 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T409/309464
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A machining spindle that includes a tool-holder shaft (2), a first actuator connected to a coupling member (11) slidably connected to a first section (21) of the shaft to rotate the shaft, a second actuator connected to a nut helically connected to a second section (22) of the shaft to move the shaft axially and a control rod (24) of a tool-holder attachment system connected to the second section by a full connection. The spindle includes a locking arrangement (40) mounted movable between the first and second sections by a switchover arrangement (50), between a first position in which the first and second sections are in full connection and a second position allowing axial movement of the second section relative to the first section, enabling the control rod to be moved axially under the action of the second actuator to control the attachment system in a released position of the tool holder.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.