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: High precision machining is enabled by eliminating the need for a conventional swiveling table, and by enhancing rigidity for supporting a work by relatively reducing the distance from the top surface of a stationary body section (1) to the position for machining a work by means of a tool on a rotary spindle (17). A pair of guide tracks (28a, 28b) respectively passing two positions separated in the X axis direction of the stationary body section (1) and in the Z axis direction intersecting the X axis direction perpendicularly are allowed to guide feed tables (30a, 30b) to be movable independently.

Abstract: A working route of a main shaft is divided into a plurality of measurement points, and a length from a center of a complete round to the working route of the main shaft at each of the measurement points is measured, and this measured value is compared with a radial length of the complete round to operate a deviation amount from the complete round at each of the measurement points. This deviation amount is utilized to find a transferred position. As correction values for correcting the deviation value, an X-axis incremental amount and a Y-axis incremental amount obtained from a difference in the transferred position between the respective measurement points, or an X-axis absolute value and a Y-axis absolute value of the transferred position at each of the measurement points are incorporated into an NC working program to perform complete round working according to the program.

Abstract: An object of the present invention is to provide a mist measuring apparatus in which visual confirmation performance is enhanced, and high-accuracy detection is enabled. In the mist measuring apparatus including a housing, and a light source that is provided in this housing and emits light to a misty cutting fluid, the housing is provided around an ejection part of the misty cutting fluid, the light emitted from the light source is a visible ray, and the housing is provided with an observation part for observing scattered light from the misty cutting fluid.

Abstract: An object of the present invention is to provide a mist measuring apparatus in which visual confirmation performance is enhanced, and high-accuracy detection is enabled. In the mist measuring apparatus including a housing, and a light source that is provided in this housing and emits light to a misty cutting fluid, the housing is provided around an ejection part of the misty cutting fluid, the light emitted from the light source is a visible ray, and the housing is provided with an observation part for observing scattered light from the misty cutting fluid.

Abstract: A machine tool comprises a bed 1 having longitudinal guiding tracks 7, 7 on upper faces of right and left side parts 4, 4 respectively, a cutting unit 2 hung and supported by the guiding tracks 7, 7, moving in a longitudinal direction, and having a cutting part at its front, and a work fixing table 3 integrally attached on the bed 1, cover faces provided between the cutting unit 2 and the work fixing table 3 to surround an upper face as well as right and left side faces of the cutting part 2, and a cover device 14 forming a working space with only the bottom open relative to the cover faces, the work fixing table 3 and the cutting unit 2, wherein right and left side faces “d”, “d” of the cover faces hang below the guiding tracks 7, 7 inside the right and left side parts 4, 4 of the bed 1.

Abstract: The tool holder for machine tool includes grip 10a on an outer circumference held on an automatic exchange of a cutting edge 8. A through hole 10b is in the longitudinal center. An internal thread (g) is on one end of through hole 10b, and a tool stopper 11 is screwed on internal thread (g). A through hole 11a is in the longitudinal center of tool stopper 11. A conical engaging body 10c is on the other end of through hole 10b, so that conical engaging body 10c protrudes outwards. The conical engaging body 11c connects with a tool shank taper (n) and a flanged end face (m) of a main spindle. A mist receiving tube 12 is on a connecting side of through hole 10b, and a through hole 12a is in the longitudinal center of the mist receiving tube 12. A communicating tube 14 is in the through hole 12a of mist receiving tube 12 and through hole 11a of tool stopper 11, so that communicating tube 14 bridges them to flow cutting oil directly thereinside.