Abstract:
A machine tool (1) comprising a vertical upright (4), a translatable support structure (6,54) supported by the upright (4) and bearing a spindle (8,58) and an extensible balancing device (30) which acts so as to push against the support, structure to counter the effect of the weight of said support structure and of the components supported thereby.
Abstract:
A machine tool (1, 100) comprises a support structure (4, 104) and a machining head (8) bearing a mandrel (12). The machine further comprises at least one action device (20) contained on the support structure (4,104) and applied to it, which generates pushing or pulling actions on said support structure (4, 104) acting against the action of the weight of the head (8) thereon.
Abstract:
A machine tool, e.g., of large dimensions, comprises a j bench (2), an upright base (4), control means of the translation of the upright base, an upright base position sensor comprising an optical line or linear encoder (20) fixed to the bench (2), means for detecting the temperature (T1,...,Tn) of the optical line and management means (30) for processing the temperature signals coming from the optical line temperature detection means and the signals of the upright base translation control means to determine a correction signal for the upright base translation control means according to at least one temperature detected along the optical line.
Abstract:
A machine tool (100) comprises a sliding support (102) moving upon command in a longitudinal direction and a support apparatus suitable for supporting the sliding support, consisting of two longitudinal benches (10), suitable for constraining to the ground, transversally separated.
Abstract:
A reduction accessory (60) for a spindle (12) of a machine tool (1) comprising at least a pair of attachment devices (90) for the releasable coupling to the spindle (12). Each attachment device (90) comprises a yielding coupling element (92) in the form of a spring clamp which can be inserted into an engagement seat (44) of the spindle and then activated to engage a protrusion (48) of the engagement seat (44).