Abstract: A machine tool includes a rotatable spindle, a spindle drive, a tool magazine, a tool changer including a rotating shaft, a rotating shaft drive motor, an angular position detector, a tool change arm having gripping units at both ends, and a controller. After interchanging a first tool mounted on the spindle and a second tool held in a tool pot, when rotating the tool change arm to an intermediate position, rotation of the spindle is started as soon as the second tool mounted on the spindle and the gripping unit are out of contact with each other.

Abstract: A tool handling device for machine tools, comprising a tool magazine having a transfer position for the transfer of the tools, including a tool changer movable between the transfer position and an exchange position, which has a rotatable double gripper, and a supporting structure movable on a foundation, on which the tool changer is mounted. In order to achieve fast tool changes in tight spaces on the machine, the supporting structure has an upper slide and a lower slide which can both be displaced by means of spindle drives in the same direction on a foundation, wherein a single drive motor is provided for driving the two spindle drives.

Abstract: The invention relates to a machine comprising a mechanical guide element (2a, 2b) for guiding the displacement of a first (3a, 3b) and a second device (4a, 4b). The machine comprises a first drive device (5a, 5b, 10a) for displacing the first device (3a, 3b) along the guide element (2a, 2b), and a second drive device (6a, 6b, 10b) for displacing the second device (4a, 4b) along the same guide element (2a, 2b) as the first device (3a, 3b). The mechanical construction of a machine is simplified due to said invention.

Abstract: The present invention provides a machine tool with a spindle chuck replacing mechanism which is simply configured to enable a reduction in time for work replacement without the need to sense the rotation speed of a spindle chuck or the like. The machine tool includes a pre-rotation-transmission mechanism 7 transmits rotation of a spindle motor 4, via a path different from a chuck coupling portion 3a of a spindle 3, to a spindle chuck 5 placed in a processing position P1 and not coupled the chuck coupling portion 3a. The pre-rotation-transmission mechanism 7 makes a difference in rotation speed between the spindle chuck 5 and the spindle 3. The pre-rotation-transmission mechanism 7 has a speed difference absorbing mechanism 23 that absorbs the difference in rotation speed with the spindle chuck coupled to the chuck coupling portion 3a.

Abstract: A tool replacing device including a case member is disclosed. In the case member, engaging balls supported between a holding member and a movable member is projected into the holding member by an extruding surface of the movable member, resiliently urged by a second spring, thereby allowing a tool to be engaged. By pressing the movable member against a resilient urging force of the second spring, the engaging balls can be moved in the movable member. Also, since there are provided shock sensors for detecting a moving distance of the holding member holding the tool, collision or the like of the tool can be detected. Even if power supply is stopped, the present tool replacing device can hold the tool.

Abstract: An object of the present invention is to provide a machine tool with a spindle chuck replacing function which has a simple configuration and enables a reduction in work replacement time. The machine tool with the spindle chuck replacing function includes a spindle 3, a spindle motor 4, a plurality of spindle chucks 5, 5, a spindle chuck replacing mechanism 10, a pre-rotation motor 7, a rotation speed sensing means, and a replacement spindle motor speed control means. The replacement spindle motor speed control means controls the rotation speed of the spindle motor 4 according to a speed sensed by the rotation speed sensing means so that when the spindle chuck replacing mechanism 10 passes the spindle chuck located at a spindle opposite position P1 to a chuck coupling portion 3a of the spindle 3, the rotation speed of the spindle 3 synchronizes with the rotation speed of the spindle chuck 5 located at the spindle opposite position P1.

Abstract: A multi-spindle machining center for the chip forming processing of workpieces comprises a spindle group having at least two spindles arranged in a spindle row to mount a chip forming tool, and a workpiece support, on which at least two workpiece holders, correlated with the geometrical arrangement of the spindles, for holding workpieces for a simultaneous processing by means of the spindles, are arranged, the workpiece support having a beam-like longitudinal support member, bearing the workpiece supports, which at its longitudinal terminal regions is movably held on a respective workpiece support bearing means and the spindles are guided for a movement toward the workpiece support in a first axial direction on a spindle linear guide arrangement.

Abstract: A tool changing device for a machine tool with at least one tool carrier is proposed, which comprises at least one transit station, into which a tool is introducable in an inward transit direction and is extractable in an outward transit direction, wherein, at the transit station, the tool is at least one of detachable from the assigned tool carrier and fixable to the tool carrier provided.

Abstract: A machine tool consists in a pair of slide ways set apart one from another and extending parallel with a longitudinal axis, a machining station between the slide ways, presenting a first zone and a second zone adjacent one to the other, and a traveling gantry set in motion along the slide ways and carrying a machining head positionable in the first and second zones. Installed alongside at least one of the slide ways and containing a supply of tools attachable to the machining head is a magazine equipped with a first changer element positioned to coincide with the first zone of the station, and a second changer element positioned to coincide with the second zone, so that whichever of the two zones the machining head happens to occupy at any given moment, the tool currently in use can be replaced with a tool from the magazine by the relative changer element with minimal loss of time.

Abstract: The multi-function machine tool of the present invention has a tool rest main body which is disposed movably relative to the main spindle of the machine tool in a first linear direction parallel to the axial line of the main spindle and a second linear direction perpendicular to the axial line of the main spindle, a turning tool rest 72 which is disposed so that this turning tool rest can turn relative to the tool rest main body about a turning axis 73 oriented in a direction that is perpendicular to the first and second linear directions, and control means which control the rotational motion of the main spindle, the turning motion of the turning tool rest about the turning axis, and the relative motion of the tool rest main body.

Abstract: A machine tool comprising a machining spindle, a device for inserting an auxiliary unit into the machining spindle, a tool magazine for providing a multitude of tools and a tool changer comprising at least one tool gripper for holding tools for the machining spindle for the transportation of tools between the tool magazine and an exchange position at the machining spindle. To ensure an automatic supply to the machining spindle as well as to the auxiliary unit in a simple and fast way the tool changer has at least one additional tool gripper for holding tools for the auxiliary unit.

Abstract: A machine tool comprising a machining spindle, a device for inserting an auxiliary unit into the machining spindle, a tool magazine for providing a multitude of tools and a tool changer comprising at least one tool gripper for holding tools for the machining spindle for the transportation of tools between the tool magazine and an exchange position at the machining spindle. To ensure an automatic supply to the machining spindle as well as to the auxiliary unit in a simple and fast way the tool changer has at least one additional tool gripper for holding tools for the auxiliary unit.

Abstract: A tool changer for a machine tool includes an arm support disposed between a spindle head and a tool magazine to be reciprocally moved along the spindle relative to the spindle, a pair of tool changing arms mounted for rocking motion on support shafts further mounted on the arm support to cross the spindle, respectively, holding mechanisms on one ends of the tool changing arms respectively, and a rotating mechanism for rotating the tool changing arms by 180 degrees about a center shaft parallel with the spindle. Each holding mechanism has a moving pin and a spring for urging the moving pin in a direction of projection of the pin. The moving pins are engaged with a tool attached to the spindle and another tool located at a standby position of the tool magazine when the tool changing arms are rocked about the support shafts so that the tools are detachably held by the holding mechanisms respectively.

Abstract: In the tool change device, a tool change arm 27 for changing a tool 25 with respect to a main spindle 24, a main tool magazine 29 including a plurality of hold grooves 30 arranged linearly for holding the tools 25, and a tool storage member 41 including at least one storage portion 46 for storing the tool 25 are arranged in the back-and-forth direction of the tool change device. In order that the tools 25 can be delivered between the tool change arm 27 and main tool magazine 29, between the main tool magazine 29 and tool storage member 41, and between the tool storage member 41 and tool change arm 27, a single tool loader L is disposed in such a manner that it can be moved in correspondence to the tool change arm 27, main tool magazine 29 and tool storage member 41.

Abstract: A work tool changer for a work tool center with horizontal work tool spindle and an a work tool magazine, which receives the work tools in a vertical axis. The work tool changer is provided with a vertically transportable lift sled (28), on which a 2-armed gripper (94) is provided. The gripper (94) is mounted in a gripper head (66), which is pivotable between a position with horizontal gripper axle (90) and a position with a vertical gripper axis (90). The pivot movement of the gripper head (66) and the swivel movement of the gripper (94) about its gripper axle occurs by means of the same driver (44, 46, 50, 52), which drives the uplift movement of the lift sled (28).

Abstract: An equipment of a machine tool for exchanging one tool attached to a main spindle into the other tool in a tool pot by memorizing a relative location between a terminated position of the cross rail and an elevator position of the tool pot of the tool-pot magazine mounted at one side of a gate-type column of the machine tool and being provided with corresponding detachable tool therein, calculating necessary movement distance of the tool pot with reference to the relative location, operating the tool-pot magazine by the calculated movement distance by a servo motor, and exchanging one tool attached to a main spindle into the other tool.