XY-positioning table
US4763886A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jun 24, 1987 |
| Grant date | Aug 16, 1988 |
| Priority date | — |
| Expiry date | Jun 24, 2007 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB23Q5/40
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
The XY-positioning table of the present invention includes a base, an X-axis-movable table and a Y-axis-movable table, as well as, X-axis, and Y-axis driving means, attached to said base: where the X-axis-movable table is provided with an X-axis nut to engage with a threaded shaft driven by said X-axis driving means; while in the interior cavity or space of the X-axis-movable table is provided a Y-axis nut capable of engaging with another threaded shaft driven by the Y-axis driving means with auxiliary bearings being provided between the Y-axis nut box and the Y-axis table for effecting X-axis rectilinear-motion, thus realizing a smooth and accurate relative X-Y directional movement between the X-axis and Y-axis movable tables and the bed. Further advantages of the present XY-positioning table are: since the Y-axis driving-mechanism is accomodated almost within the interior space or cavity of the X-axis table, the present XY-positioning table can be made smaller in size, while as the weight of the Y-axis driving-mechanism is not provided on the X-axis-movable table, the inertial force taking place upon the movement of the table can be minimized and, accordingly, the present XY-posi…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.