Tool spindle, in particular boring spindle
AssigneeGROB-WERKE GmbH & Co. KG
InventorsKarl Rehm, Markus Grob
Life of this patent
Estimating the term…
Abstract
A tool spindle for machining or producing elliptical surfaces, particularly elliptical bores, includes a housing (1) of two parts (31 32), a sleeve (2) rotatable mounted in the housing, a tool carrier shaft (3) rotatably mounted in the interior of the sleeve (2) for carrying a machining tool on the outer end thereof, the tool carrier shaft having an axis of rotation (13) in parallel spaced relationship with respect to the axis of rotation (12) of the sleeve, and a drive mechanism (4, 5, 6, 7, 8, 9, 11, 18, 21, 30) for driving the tool carrier shaft and the sleeve at the same speed in opposite directions.
Claims19
Tool spindle comprising:
- a housing;
- a sleeve rotatably mounted in said housing;
- a tool carrier shaft at least partly received within and relatively rotatable with respect to said sleeve for acting as a tool carrier, said sleeve and said tool carrier shaft each having a respective axis of rotation extending in parallel spaced relationship with respect to each other;
- and
- drive means adapted to rotate said sleeve and said tool carrier shaft at equal speeds in opposite directions, said drive means comprising
- a gear housing rotatable with said sleeve, at least one gear shaft rotatably mounted within said gear housing and having an axis of rotation substantially parallel to said axes of rotation of said sleeve and said tool carrier shaft;
- first and second toothed wheels fixedly mounted on said at least one gear shaft,
- a further toothed wheel mounted on said tool carrier shaft for rotation coaxially therewith, sand
- a stationary central gear wheel having an axis of rotation coaxial with said axis of rotation of said sleeve,
- said first toothed wheel meshing with said central
- gear wheel and said second toothed wheel meshing with said further toothed wheel.
A tool spindle comprising:
- a housing;
- a sleeve rotatably mounted in said housing;
- a tool carrier shaft at least partly received within and relatively rotatable with respect to said sleeve for acting as a a respective axis of rotation extending in parallel spaced relationship with respect to each other;
- and
- drive means adapted to rotate said sleeve and said tool carrier shaft at legal speeds in opposite directions, said drive mean comprising
- a gear housing,
- a first gear shaft and a second gear shaft mounted in said gear housing,
- a first toothed gear wheel and a second toothed gear wheel mounted on each of said first and second gear shafts,
- said first and second gear shafts each having an axis of rotation lying in a first plane,
- said axes of rotation of said sleeve and said tool carrier shaft lying in a second plane, intersecting said first plane.
A tool spindle comprising:
- a housing;
- a sleeve rotatably mounted in said housing;
- a tool carrier shaft at least partly received within and relatively rotatable with respect to said sleeve for acting as a tool carrier, said sleeve and said tool carrier shaft each having a respective axis of rotation extending in parallel spaced relationship with respect to each other;
- and
- drive means adapted to rotate said sleeve and said tool carrier shaft in opposite directions at the same speed for elliptical boring and machining.
A tool for producing or machining surfaces of elliptical cross-section, comprising:
- a central support means;
- a sleeve rotatably mounted on said central support means and having an axis of rotation;
- a tool carrier rotatably mounted on said sleeve so that said sleeve supports said tool carrier and said tool carrier has an axis of rotation extending in parallel spaced relationship to said axis of rotation of said sleeve;
- and
- drive means adapted for rotating said sleeve and said tool carrier at the same rotational speed in opposite directions for elliptical boring and machining.
Dependencies are inferred from the claim text.