Abstract: A multi-cyclone collector includes a suction port for sucking an air flow including contaminating particles, a cyclone accommodation chamber allowing the air flow sucked through the suction port to be guided thereinto, a plurality of cyclones each accommodated in the cyclone accommodation chamber, for transforming the air flow taken in to a downward swirl flow, separating the contaminating particles, then reversing the swirl flow to the upward swirl flow and releasing the upward swirl flow as a purified air flow, a cyclone exit chamber provided above the cyclone accommodation chamber, that allows the purified air flow from the cyclones to be guided thereinto, and a drain discharge chamber provided below the cyclone accommodation chamber, for collecting the contaminating particles separated by the cyclones.

Abstract: A machine tool, wherein the front face of a base of the machine tool is formed in a single plane and a jig for fixing a workpiece to be machined with a tool is installed extending forwardly from a vertical intermediate front part of the base that defines an area between right and left lateral end front parts of the base having the vertical overall length portions or the vertical roughly overall length portions at right and left end parts of the front face formed in the single plane is formed detachably from the other portions of the base. The jig for fixing the work machined with the tool may be installed in the state of being extended from the vertical intermediate position of the front face in a forward direction.

Abstract: A machine tool, wherein the front face of a base of the machine tool is formed in a single plane and a jig for fixing a workpiece to be machined with a tool is installed extending forwardly from a vertical intermediate front part of the base that defines an area between right and left lateral end front parts of the base having the vertical overall length portions or the vertical roughly overall length portions at right and left end parts of the front face formed in the single plane is formed detachably from the other portions of the base. The jig for fixing the work machined with the tool may be installed in the state of being extended from the vertical intermediate position of the front face in a forward 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 main shaft (6) movable in a direction of X-axis is provided at a position on one side of a foundation (1), and a lateral stand (12) is fixed on the top portion of the rotation support shaft (10). On the upper surface of the lateral stand (12), there is provided a work grip rotation feed mechanism portion (13) for rotating bar-like work (w) about a specific lateral axis (S) on the upper surface. The rotation support shaft (10) and the specific lateral axis (S) are horizontally separated by a required distance (L0). The rotational position of the rotation support shaft (10) is varied between the case where the bar-like work (w) is processed by the operation of the main shaft (6).

Abstract: A multi-shaft spindle head, wherein a plurality of spindles (11) having tools at the tips thereof are disposed in the same direction, the rear ends of cutting fluid feed passages (21a) formed as the inner holes of cutting fluid feed tubes (21) installed in a non-rotating state at the rotating center parts of the spindles (11) are allowed to communicate with a common closed chamber (8) formed at the rear parts of the spindles (11), and atomized cutting fluid fed into the common closed chamber (8) is jetted from the tips of the openings at the rear end of the cutting fluid feed passages (21a).

Abstract: A boring control method for a machine tool for automatically boring a deep hole using a central control means performing boring with programmed control. In the boring, the number of processing and steps of the machine tool is kept minimum, load torque of a tool is detected continuously using torque detection means, and the movement of the tip portion of the tool desired for a piece of work is confirmed from a reference point to a hole bottom using a Z-axis movement device. The boring is continued in each step until the load torque exceeds a predetermined torque limit value, performed in a condition where a main shaft rotation number, or rotation speed of the tool, and feed speed form a specific pattern, and a condition is set where a total step number (f) does not exceed a predetermined limit step number (N).

Abstract: A spindle device of a machine tool, which can prevent the liquefaction of atomized cutting fluid in atomized cutting fluid passage downstream of a straightening unit 14, enhance a responsiveness to an ejecting start or stop instruction, and prevent a waste of cutting fluid. The spindle device for a machine tool has atomized cutting liquid passage (e1, e2) each having a single-shape passage section and formed inside the device ranging from the spindle 1 to the tip end of a cutting tool 13 mounted thereto in one piece, and is operated so as to eject atomized cutting tool 13 via the atomized cutting fluid passages (e1, e2), wherein a straightening unit 14 formed with a plurality of small-diameter passages h are provided in the middle of the cutting liquid passages (e1, e2).

Abstract: A machine tool capable of jetting atomized lubricant (h) forward from the tip of a cutter (17), characterized by comprising a lubricant jetting state detector for detecting the jetting state of the atomized lubricant from the tip of the cutter, the lubricant jetting state detector further comprising a guide member (21) having a straight inner hole (21a), wherein a light detection device for detecting the degree of transmission or reflection of the detection light due to injecting the direction light (c) to a specified position (b) inside the inner hole through a transparent member installed on the peripheral wall portion of the guide member or through the transparent peripheral wall portion of the guide member, and a fluid feed device (23) for feeding clean fluid of rather thin layer flowing in a specified direction along the longitudinal direction of the inner hole is installed near the inner surface of the transparent member or so as to cover the transparent peripheral wall portion, whereby a defective part

Abstract: A multispindle machine tool, characterized in that outside cylindrical members (19) having a plurality of spindles (2) and fixed to a support frame (3b) are inserted into the center holes (2c) of the spindles, a mist generator (22) for generating lubricant mist in the spindles and inside cylindrical members (20) having the mist generator fixed to the tip thereof are installed on the inside of the outside cylindrical members so as to be withdrawn the outside cylindrical members held in fixed state so that, under the installed state, the mist generator can generate the lubricant mist since compressed air and liquid lubricant are separately fed from the outsides of the spindles thereto through the outside cylindrical members and the inside cylindrical members and the inside cylindrical members and, under the withdrawn state, the lubricant mist is fed from the outsides to the insides of the spindles through the outside cylindrical members to jet out the mist from the tips of the cutters fixed to the tips of the s

Abstract: A work carrier capable of moving a work stage 45 to an arbitrary position in the left/right direction and stopping the work stage 45 thereat with an accuracy equivalent to that of a conventional carrier or above through an inexpensive structure. The work carrier comprises a fixed guide rail member 15 and movable guide rail members 17, 18, 19 mounted on a supporting table 10, a driver 16 for moving the movable guide rail members to the left and the right, rail member interlocking mechanisms 35a, 35b for interlockingly operating the movable guide rail members 17, 18, 19, and the work stage 45 mounted on the movable guide rail member 19, wherein the driver 16 is a motor having a rotational speed being varied by inverter control and employing an open loop rotation control system, and a plurality of stopper members 52a, 52b, 52c are provided in order to stop the movable guide rail member 17 at a specified position.

Abstract: The present invention provides a method and apparatus for supplying process liquid s for a machine tool, which are able to reduce the consumption power and power factor of the pump 21 to a large extent in comparison with prior arts while maintaining the effects of process liquid s according to prior arts. The invention is embodied so that process liquid s such as coolant or cleaning fluid is supplied to necessary points by causing the process liquid s to flow down, which is stored in a sub tank 20 installed at a suitable height in a machine tool, by a gravity action when intermittently supplying the process liquid s such as coolant or cleaning fluid to the necessary points such as a workrest 2 and a workpiece w fixed thereon; the supplied process liquid s is collected into a main tank 19 on the other hand; and the process liquid s stored in the main tank 19 is transferred into the sub tank 20 by the pump 21.

Abstract: A spindle device of a machine tool capable of stably injecting atomized cutting fluid from the tip of a tool device 13 when a variation in fluidity of the atomized cutting fluid occurs temporarily in atomized cutting fluid passages e1, e2 or the supply of the atomized cutting fluid into the atomized cutting fluid passage e1 is stopped and restarted, wherein the atomized cutting fluid passages e1, e2 having a single passage cross section are formed in the area ranging from the spindle 1 to the tip of the tool device 13 through the atomized cutting fluid passages e1, e2, and a vacant chamber group transmission layer part 14 having a large number of vacant chambers 142 stacked thereon in multiple stages or in the state of communicating with each other and allowing the atomized cutting fluid to pass therethrough through the groups of the vacant chambers 142 is formed in the atomized cutting fluid passage e1 or e2.

Abstract: A spindle device of a machine tool capable of preventing coolant mist from being excessively liquefied in an area between a mist outlet member 23 and near the rear end part of a tool 29, wherein a straight feed pipe 14 formed of a double tube having an inside tube 14a and an outside tube 14b is inserted into an inside hole formed at the center part of a spindle 2 in non-rotating state not coming into contact with the spindle, coolant is fed to the inside tube 14a, compressed air is fed to the outside tube 14b, and a mist generating member 16 is formed of both tubes near the inside tip part of the spindle, a mist outlet member 23 is installed into the outside tube 14b integrally with each on the mist outlet passage c of the mist generating member 16 so as to surround the mist outlet passage and a mist guiding extension member 24 allowed to reach near the rear end part of the tool in the center hole of the tool holder is installed, integrally with the spindle, on the other tool holder 8 side, and the mist guidi

Abstract: The wasting of cutting fluid mists and contamination of a machining environment with cutting fluid mists are prevented by feeding optimum amounts of cutting fluid mists in a variety of machining operations.

Abstract: A main shaft device for machine tools designed to prevent the wasting of cutting fluid mists and contamination of a machining environment with cutting fluid mists by feeding optimum amounts of cutting fluid mists in a variety of machining operations, comprising a mist feed tube (14) disposed in the rotational center of a main shaft (2) driven for rotation, the front of the mist feed tube (14) being inserted in the rotational center of a tool holder (8) fixed to the front of the main shaft (2) to ensure that the cutting fluid mists flowing out of the front end of the mist feed tube (14) spout from the front end surface of a cutting tool (17) fixed to the tool holder (8), via a mist passageway (h1) in the tool holder (8), the main shaft device being characterized in that the mist feed tube (14) has an adjusting nozzle member (16) removably fixed to the front thereof for controlling the flow rate of the cutting fluid mists flowing out of the feed tube (14) into the mist passageway of the tool holder (8).

Abstract: A cutting tool device for a machine tool having a cutting tool (2) for cutting a plane fixed to the tip end of a rotating shaft (1) and provided with a suction cover (10) covering airtightly the surrounding portions except for a tip face (a), of the cutting tool (2), wherein a hood (19) is attached to the tip opening edge of the suction cover (10) so as to further extend forward therefrom and to be displaceable longitudinally within a limited range, and an urging means (24) for urging the hood (19) forward is provided, whereby chips (w1) produced by the cutting tool (2) can be positively sucked and discharged when the tool is used in any of a roughing step and a finishing step.

Abstract: A machine tool capable of performing an accurate machining by preventing a second saddle 6 from displacing aslant to suppress the vibrations of a spindle head 8, wherein a column 2 is fixedly installed on bed 1, a first saddle 4 is movably guided by the column 2 in vertical direction f1, a second saddle 6 is movably guided by the first saddle 4 in lateral direction f2, a spindle head 8 is movably guided by the second saddle 6 in longitudinal direction 18, and interfitted guide route devices 5A, 5B, 5C for guiding the second saddle 6 in lateral direction f2 are formed at the rear lower position of the first saddle 4 as well as at the front upper and lower positions of the first saddle 4.

Abstract: A column fixed type machine tool capable of surely suppressing the dispersion of chips and coolant to the outside of a machining space and reducing the entire size thereof so as to increase a workability and improve a working environment, wherein a column (2) is installed fixedly on a bed (1), a spindle head (8) is installed at the front of the column movably in vertical, lateral and longitudinal directions (f1, f2, f3), a jig device (42) is installed on the bed at the front of the column, a column side cover body (cov1) densely covering the front surface of the column is provided so as to protect against the dispersion of chips, the cover body is formed so as to allow the spindle head (8) to be moved in vertical and lateral directions, a jig side cover body (cov2) covering at least the surrounding of a jig main body part (47) is installed, an intermediate cover body (cov3) covering the upper and right and left sides of the spindle head moving range is installed between the jig side cover body and the column