A lockable tool clamp includes two jaw members and a pin together installed on a mount to clamp a tool holder securely. The jaw members each have a connecting portion and a jaw tip. The two connecting portions are overlapped and connected to the mount through a shaft. The pin when installed on the mount is parallel to the shaft, and passes through the two jaw members at a location different from where the shaft passes through the two jaw members. When the pin is in its unlocking position, the jaw members are allowed to pivot with respect to each other, so that the tool holder can be withdrawn or replaced by pushing the jaw tips apart. When the pin is in its locking position, the jaw members are restricted from pivoting with respect to each other. At this time, the tool holder is clamped between the jaw tips securely.

A drum-type tool magazine adaptive to a multi-axis machining center allows the machining center to use spindles to directly take and replace tool holders that hold machining tools. The drum-type tool magazine includes a driving member, a drum, and plural tool clamps. The drum is centrally provided with a rotating shaft and peripherally provided with plural separated mounts that are arranged circularly. The driving member drives the drum to rotate. Plural tool clamps are arranged abreast on each of the mount. Every tool clamp of the same mount has a tool-clamping jaw parallel to a tangential direction at a periphery of the drum and communicated with the tool clamp so that the machining tool when clamped is laid horizontal and located close to the periphery of the drum. This allows the volume of the tool magazine to be minimized.

A machine tool is provided with two vertically oriented tool spindles that are arranged to hold tools and that are movable vertically in a first direction and horizontally in a second direction orthogonal to the first direction. Furthermore, the machine tool is provided with two workpiece support devices for clamping workpieces in place. At least one of the two workpiece support devices is movable horizontally in a third direction orthogonal to the first and the second direction. The two tool spindles and the two workpiece support devices are mounted on a common machine frame with a common working space, wherein the two tool spindles are movable parallel to one another in the second direction. The two tool spindles are facing one another.

[Problems to be solved] To discharge a fluid such as coolant to an optimum position without spending time for nozzle adjustment at the time of tool change by automating the adjustment of the orientation of a plurality of nozzles. [Means for solving the problems] In a coolant nozzle device having a plurality of nozzles capable of discharging coolant, respectively, the coolant nozzle device comprising; a rotating plate attached around the spindle core and capable of being rotatably controlled, and having a plurality of curved cam grooves which are formed corresponding to each of the plurality of fluid nozzles and which regulate the discharge angle of each of the fluid nozzles and through which the fluid nozzles are provided so that the tool protrudes toward the tip of the tool; driving means for rotatably driving the rotating plate; a control unit for rotating the rotating plate by a predetermined angle in response to replacement of the tool; wherein the control unit receives a tool change command of the machine tool and rotates the rotating plate by a predetermined angle via the driving means, so that the plurality of cam grooves may slide around the spindle core to change the discharge angle of each of the fluid nozzles.

A lockable tool clamp includes two jaw members and a pin together installed on a mount to clamp a tool holder securely. The jaw members each have a connecting portion and a jaw tip. The two connecting portions are overlapped and connected to the mount through a shaft. The pin when installed on the mount is parallel to the shaft, and passes through the two jaw members at a location different from where the shaft passes through the two jaw members. When the pin is in its unlocking position, the jaw members are allowed to pivot with respect to each other, so that the tool holder can be withdrawn or replaced by pushing the jaw tips apart. When the pin is in its locking position, the jaw members are restricted from pivoting with respect to each other. At this time, the tool holder is clamped between the jaw tips securely.

A drum-type tool magazine adaptive to a multi-axis machining center allows the machining center to use spindles to directly take and replace tool holders that hold machining tools. The drum-type tool magazine includes a driving member, a drum, and plural tool clamps. The drum is centrally provided with a rotating shaft and peripherally provided with plural separated mounts that are arranged circularly. The driving member drives the drum to rotate. Plural tool clamps are arranged abreast on each of the mount. Every tool clamp of the same mount has a tool-clamping jaw parallel to a tangential direction at a periphery of the drum and communicated with the tool clamp so that the machining tool when clamped is laid horizontal and located close to the periphery of the drum. This allows the volume of the tool magazine to be minimized.

The present disclosure relates to a tool magazine for a machine tool, and more particularly, to a tool magazine for a machine tool, wherein tool receiving units of a tool magazine are provided in multiple stages in a vertical turning center, such that a spindle head may easily change internal diameter machining tools and external diameter machining tools while moving in a horizontal direction and a vertical direction.

A machine tool is provided with two vertically oriented tool spindles that are arranged to hold tools and that are movable vertically in a first direction and horizontally in a second direction orthogonal to the first direction. Furthermore, the machine tool is provided with two workpiece support devices for clamping workpieces in place. At least one of the two workpiece support devices is movable horizontally in a third direction orthogonal to the first and the second direction. The two tool spindles and the two workpiece support devices are mounted on a common machine frame with a common working space, wherein the two tool spindles are movable parallel to one another in the second direction. The two tool spindles are facing one another.

An automatic tool changer includes a cover that partitions a machining area and a non-machining area, and an opening/closing member that opens/closes an opening of the cover by turning in synchronization with rotation of a tool changer magazine. The opening/closing member includes a plate section partitions the machining area and the non-machining area at a position of the opening of the cover. In a case where the tool changer magazine performs tool replacement with respect to a tool storage magazine, the plate section closes the opening of the cover by taking a horizontal posture. In a case where the tool changer magazine performs tool replacement with respect to a main spindle, the plate section opens the opening of the cover by changing its posture from the horizontal posture to an inclined posture or a vertical posture.

This machine tool comprises a machining chamber in which machining of a workpiece is performed, and a tool storage chamber in which a plurality of tools are stored. The machine tool is further provided with a partition which partitions the machining chamber and tool storage chamber from one another. The machine tool is positioned on the front side of the machining chamber, and is equipped with a first sliding door that moves in the width direction, and a second sliding door that is positioned on the front side of the tool storage chamber and that moves in the width direction. The first sliding door and second sliding door are positioned in such a manner that one of the sliding doors is positioned on the front side of the other sliding door, and when one of the sliding doors is opened, said door overlaps with the other sliding door.