| 摘要 |
Machine for additive manufacturing of a three-dimensional object by sintering or melting powder using an energy beam acting on a powder layer in a working zone, comprising a device (30) for moving a supporting plate vertically in translation inside a manufacturing casing mounted on the chassis of said machine, said device comprising: a column (39) mounted on said chassis, inside of which column a cylinder (31) is arranged, said cylinder comprising a body securely fastened to said column and a movable rod connected to said plate; and means (90) for guiding the movable rod of said cylinder (31). According to the invention, said guiding means (90) comprise prismatic guiding elements located on said column (39) and on a tube (38) arranged coaxially with the latter and which moves with the movable rod of said cylinder (31). |
