Abstract: A machine tool includes a base column having a base portion and a column portion provided on the base portion, a first saddle supported behind the column portion and movable in a left-right direction, a second saddle supported on the first saddle and movable in a vertical direction, a spindle unit supported on the second saddle and movable in a front-back direction, a pair of X-axis guide mechanisms for guiding movements of the first saddle in the left-right direction, a pair of Y-axis guide mechanisms for guiding movements of the second saddle in the vertical direction, and a pair of Z-axis guide mechanisms for guiding movements of the spindle unit in the front-back direction.

Abstract: A machine tool includes a base column having a base portion and a column portion provided on the base portion, a first saddle supported behind the column portion and movable in a left-right direction, a second saddle supported on the first saddle and movable in a vertical direction, a spindle unit supported on the second saddle and movable in a front-back direction, a pair of X-axis guide mechanisms for guiding movements of the first saddle in the left-right direction, a pair of Y-axis guide mechanisms for guiding movements of the second saddle in the vertical direction, and a pair of Z-axis guide mechanisms for guiding movements of the spindle unit in the front-back direction.

Abstract: A machine tool capable of reducing the lateral width of the upper part thereof by reducing the lateral width of a bed (1) while machining through the same lateral moving distance of a spindle (10) as before, comprising longitudinal guide rails (2) installed on the bed (1), a slide (3) installed through the guide rails (2) movably in a longitudinal direction, a column (6) movable in vertical direction, wherein first cover plates (25) are fixed at the right and left sides of a vertical moving route for the spindle (10), side cover plates (26) are installed continuously with the outer end edges of the first cover plates (25) so as to be turnable rearward, a second cover plate (32) is installed at the front sides of the first cover plates (25) and the side cover plates (26) integrally with the slide (3) so as to cover the front side of the moving range of the column (6), and a shielded machining space (SK) is formed at the front of the second cover plate (32).

Abstract: A machine tool capable of reducing the lateral width of the upper part thereof by reducing the lateral width of a bed (1) while machining through the same lateral moving distance of a spindle (10) as before, comprising longitudinal guide rails (2) installed on the bed (1), a slide (3) installed through the guide rails (2) movably in a longitudinal direction, a column (6) movable in vertical direction, wherein first cover plates (25) are fixed at the right and left sides of a vertical moving route for the spindle (10), side cover plates (26) are installed continuously with the outer end edges of the first cover plates (25) so as to be turnable rearward, a second cover plate (32) is installed at the front sides of the first cover plates (25) and the side cover plates (26) integrally with the slide (3) so as to cover the front side of the moving range of the column (6), and a shielded machining space (SK) is formed at the front of the second cover plate (32).

Abstract: A chip suction type machine tool continuously removing chips produced during work machining by air suction, comprising a tool attaching part (200) in which a vent hole (s1) is formed and a spindle head (100) having an air suction hole (s2) communicating with the vent hole (s1) wherein, with the tool attaching part (200) installed on the spindle head (100), a telescoping cylinder means (201) which is formed in an inclined surfaces crossing at an angle (&thgr;) of approximately 60° or below, and facing closely, the direction of the spindle, allows at least one of the downstream end part of the vent hole and the upstream end part of the air suction hole to be deformably telescoped and, in free state, is held in a retracted state so that these downstream and upstream end parts are departed from each other by elastic member (205) which is provided between the downstream end part of the vent hole (s1) and the upstream end part of the air suction hole (s2).