Abstract: 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.

Abstract: A machining installation for workpieces comprises a workpiece positioning device comprising a workpiece holder pivot unit as well as a tool positioning device comprising a tool holder pivot unit. The workpiece holder pivot unit is designed such that a workpiece holder is pivotable about at least three and no more than four workpiece holder pivot axes. Moreover, the tool holder pivot unit is designed such that a tool holder is pivotable about no more than two tool holder pivot axes. The machining installation has a simple design and ensures flexible and accurate machining of workpieces.

Abstract: A device for cutting tubular and rod-shaped work pieces using the whirling method includes a whirling unit on which a holder mounted so as to rotate, connected with a drive, for a saw blade having internal teeth is disposed. The holder and saw blade are provided with corresponding reference mechanisms for fixation of the saw blade in a defined position. The device also includes a mechanism for automatic replacement of the saw blade. A saw blade having internal teeth is also provided for use in this device. The saw blade has at least two indexing bores and at least two gripping openings, which are disposed offset relative to one another.

Abstract: An ergonomic tool lifting machine and method particularly useful for manipulating a machine tool or another heavy object. In one embodiment of the invention, the machine tool is a large milling cutter. The ergonomic tool lifting machine generally includes an articulating arm attached at a fixed end to a vertical lift mechanism, and at a free end to a grasping device or tool holder adapted for gripping and retaining an object of interest. When the object is a milling cutter, the ergonomic tool lifting machine may be used to transfer the cutter between a stored position and an installed position in a milling machine. Consequently, the tool holder of this embodiment is preferably able to rotate between a pick-up/drop-off position and an installation/removal position associated with the cutter. In general, the ergonomic tool lift machine allows heavy loads to be accurately moved with very little effort required on the part of an operator.

Abstract: In a machine tool comprising at least one tool carrier and at least one moveable workpiece carrier with which one or more workpieces are positionable for machining, a tool can be changed in a simple manner by providing a tool holding device connected to the at least one workpiece carrier.

Abstract: A machine tool with a driven tool spindle that is rotatable about a spindle axis that includes a tool exchanger including grippers to displace tool-holders or tools between a receiver position in the tool spindle and a storage position, or vice versa. The tool-holders or tools in these two positions are identically oriented, and the storage position and the receiver position are displaced with respect to each other along the spindle axis direction of the tool spindle. The tool exchanger possesses a transport mechanism that includes a carrier element pivotable about a pivot axis inclined with respect to the spindle axis, to which grippers pivotable about axes perpendicular to each other are connected. Guide elements are mounted so they may be driven and rotate about the first axis parallel to the pivot axis in the opposite direction to the pivot direction of the carrier element are included on the carrier element.

Abstract: A machine tool with a driven tool spindle that is rotatable about a spindle axis (1a) that includes a tool exchanger including grippers (2) to displace tool-holders (4) or tools between a receiver position in the tool spindle (1) and a storage position, or vice versa. The tool-holders (4) or tools in these two positions are identically oriented, and the storage position and the receiver position are displaced with respect to each other along the spindle axis direction of the tool spindle (1). The tool exchanger possesses a transport mechanism that includes a carrier element (3) pivotable about a pivot axis (5) inclined with respect to the spindle axis (1a), to which grippers (2) pivotable about axes (6; 7) perpendicular to each other are connected. Guide elements (10) mounted so they may be driven and rotate about the first axis (8) parallel to the pivot axis (5) in the opposite direction to the pivot direction of the carrier element (3) are included on the carrier element (3).

Abstract: Disclosed is an automatic tool changing apparatus which comprises a tool magazine storing a multiplicity of tools each held by tool holding means, the tool magazine having a tool port through which the tools are loaded into or unloaded from the tool magazine; a tool shifter translating the tools for loading into or unloading from the tool magazine; a standby magazine having tool holding means by which the tools loaded or unloaded by the tool shifter are temporarily held and stand by; and an automatic tool changer changing the tool held in the standby magazine for the tool fitted to a spindle. The standby magazine has a plurality of tool holding means which are provided on an output shaft of a rotation indexing mechanism and which come to rest at delivery positions and to/from the tool shifter and the automatic tool changer, respectively.

Abstract: A tool changer for a machine tool having a toolhead assembly including a spindle with device for detachable securing a tool thereto, generally consisting of at least one device for holding a tool detachably securable to the spindle, pivotally connected to the assembly and angularly displaceable in a plane including the axis of the spindle between a retracted position and an extended position for transferring a tool between the tool holding device and the spindle; and device for angularly displacing the tool holding device between such retracted and extended positions.

Abstract: A tool changer for a machine tool having a toolhead assembly including a spindle with a device detachable securing a tool thereto, generally consisting of at least one device for holding a tool detachably securable to the spindle, pivotally connected to the assembly and angularly displaceable in a plane including the axis of the spindle between a retracted position and an extended position for transferring a tool between the tool holding device and the spindle; and a device for angularly displacing the tool holding device between such retracted and extended positions.

Abstract: A tool changer for a machine tool having a toolhead assembly including a spindle with means for detachable securing a tool thereto, generally consisting of at least one means for holding a tool detachably securable to the spindle, pivotally connected to the assembly and angularly displaceable in a plane including the axis of the spindle between a retracted position and an extended position for transferring a tool between the tool holding means and the spindle; and means for angularly displacing the tool holding means between such retracted and extended positions.

Abstract: A tool changer for a machine tool having a toolhead assembly including a spindle with means for detachable securing a tool thereto, generally consisting of at least one means for holding a tool detachably securable to the spindle, pivotally connected to the assembly and angularly displaceable in a plane including the axis of the spindle between a retracted position and an extended position for transferring a tool between the tool holding means and the spindle; and means for angularly displacing the tool holding means between such retracted and extended positions.

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: A machine tool comprises a spindle having a tool receptacle for receiving tool holders in their working position. A tool changer is provided for conveying a tool holder in a first changing step between a magazine position and a spindle position at said spindle. Further provided is a linear stroke mechanism for conveying said tool holder in a second changing step between said spindle position and said working position. A common drive mechanism is linked to said tool changer and said linear stroke mechanism such as to affect both said first and second changing step.

Abstract: A manipulating device for handling, in particular for orientating, workpieces, tools or the like, includes a workpiece head provided with a device for supporting at least one workpiece, a tool or the like, having at least one characteristic axis and drive device for rotating the workpiece head about a pre-established axis of rotation. The workpiece is supported so that the characteristic axis has a pre-established orientation, in other words a pre-established colatitude and longitude relative to a three-dimensional Cartesian reference frame which is defined by three mutually perpendicular axes, while the workpiece head can rotate about an axis of rotation which is inclined with respect to all three axes of the three-dimensional Cartesian reference frame and has a colatitude and a longitude other than those of the characteristic axis of the workpiece or of the tool.

Abstract: A machine tool (10) has a revolving spindle (14) borne in a spindle tube (13) which has a locating opening (15) to receive tool holders; (16, 17). A tool magazine (55) is also provided to hold a number of tool holders. Moreover, a tool changer (18) with at least two gripper arms (21, 22) is provided to transport tool holders; (16, 17) between a transfer position (23) in the area of the tool magazine (55) and a common spindle position (24) beneath the locating opening (15). A holding device (31) bearing the tool changer (18) is borne on the spindle tube (13) in such a way that it can be moved longitudinally in the sense of a stroke movement (33) and transfer the respective tool holder (16) from the spindle position (24) into its working position in the locating opening (15). The holding device (31) is borne on the spindle tube (13) along its longitudinal axis so that it can be rotated in such a way that the gripper arms (21, 22) have a common transfer position (23) to the tool magazine (55).

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).