| 摘要 |
1. A woodworking machine comprising : - a machining tool (3) which is rotatable about an axis parallel to a table (10) for supporting the piece (8) to be machined, the piece and the tool being displaced with a relative movement substantially perpendicular to said axis, - a fixed frame structure (1, 1a, 1b), - a first upper carriage (2) mounted slidably on guides (1b) of the frame structure parallel to a first longitudinal horizontal direction and provided on its lower face with said tool (3), - means (11, 12, 15) for adjusting the vertical spacing of the table (10) with respect ot the tool, - means (7) for fixing a piece of wood (8) on the upper surface of the table (10), and - means for entrainment of the tool (3), which are carried on the first carriage (2), characterised in that said table (10) is carried by the upper part of a second lower carriage (4) co-operating with means for entrainment of the displacement of said second carriage (4) with respect to the frame structure (1) along guides (5a, 5b) which are parallel to a second transverse horizontal direction and that said adjusting means comprise two sliders (11, 12) mounted slidably on lower guides (13, 14) of the second carriage (4) which are parallel to said longitudinal direction and each having an upper inclined face (13a, 14a) co-operating with one of the sides (15a, 15b) of a V-shaped portion (15) which is fixed with respect to the table (10), and two symmetrical screws (21, 25) which are parallel to said guides (13, 14), forming the opposite output shafts of a central bevel gear unit (24), the input shaft of which is perpendicular to said guides, each of said screws (21, 25) co-operating with the corresponding slider (12, 11) in the manner of a screw-and-nut system to move one or other of said sliders apart or together along the guides. |
