Abstract: 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.

Abstract: The disclosure provides a method and system for milling injected cutting fluid under different working conditions. By analyzing influence of airflow fields in a milling area under different working conditions on injection of cutting fluid, an influence rule of a helical angle and a rotation speed of a cutter on the flow field is quantitatively analyzed, an optimal target distance of a nozzle, an angle between the nozzle and a milling cutter feeding direction and an angle between the nozzle and the surface of a workpiece are comprehensively determined, the nozzle is set according to a determined setting manner, and lubricating oil is sprayed to the milling area by utilizing the nozzle.

Abstract: A debris control apparatus is provided for selective assembly and disassembly with a cutting tool. The debris control apparatus includes a debris control enclosure and a mounting assembly for mounting the enclosure to the cutting tool. The enclosure comprises a vacuum opening assembled and in fluid communication with a vacuum conduit, the vacuum conduit connected to a vacuum source, for extracting the debris from the enclosure. The enclosure and vacuum conduit may be sized, shaped, and contoured to reduce recirculation of debris within the enclosure.

Abstract: A machine tool setup changing method includes mounting a master workpiece onto a tool spindle axis, deforming a gripping part by gripping, with the gripping part of a jig, a mock clamped portion of the master workpiece mounted on the tool spindle axis, and removing the master workpiece from the tool spindle axis and mounting a tool supported on a tool support device onto the tool spindle axis, wherein the workpiece gripped at the clamped portion by the gripping part, which was deformed in accordance with the mock clamped portion, can be machined with the tool.

Abstract: A reconfigurable machining center includes a base structure extending in a first direction, a movable crossmember movable in the first direction and provided with a machining head, supporting elements on the base structure to enable movement of the movable crossmember along the first direction, a first leadscrew rack, integral with the base structure and having a first helical circular toothed sector, and extending along the entire base structure parallel to the first direction, and a first screw rotatably coupled to the movable crossmember and engaging a corresponding first leadscrew rack, and having a rotation axis parallel to the first direction. The longitudinal extension of the base structure in the first direction is an integer multiple of the pitch of tooth of the leadscrew racks, and the base structure includes coupling elements adapted to couple the base structure to a following and/or preceding adjacent base structure along the first direction.

Abstract: A drilling-milling device comprising a housing; a drive shaft; a spindle; and a brake. The drive shaft and the spindle being coupled to one another by a gear mechanism, and the brake being coupled to the spindle and a braking torque of the brake being transmitted to the housing.

Abstract: A tool carrier assembly for use at a machine tool, which includes at least one workpiece-carrying spindle for rotatably driving a workpiece received in the workpiece-carrying spindle. The tool carrier assembly includes a first slide being movable in a first direction, a tool carrier being supported on the first slide and configured to hold a plurality of tools, a tool drive unit including a tool drive for engaging with one of the plurality of tools held by the tool carrier to rotatably drive said tool, when the tool is arranged at a tool drive position with respect to the tool drive, and a drive mechanism for driving movement of the first slide together with the tool carrier in the first direction relative to the tool drive position, when the tool drive is disengaged with the tool, to relatively move another tool of the plurality of tools into the tool drive position.

Abstract: 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.

Abstract: A fast tool changing method with pre-unclamping step for controlling operations of the spindle, tool unclamping cylinder, and tool changing arm. The spindle has one end clamping the tool at the clamping position. The method includes following steps. In a tool pre-unclamping step, the clamp end of the spindle moves the used tool to a pre-unclamping position; the tool unclamping cylinder pushes the used tool to leave a taper of the spindle. In a tool changing step, the tool changing arm rotates to clamp the used tool and pulls the used tool away from the clamp end, and further aligns a target tool with the clamp end. In a tool inserting step, the tool changing arm inserts the target tool into the clamp end, to be clamped therein. Therefore, the tool unclamping and tool clamping operations are accelerated.

Abstract: This disclosure relates to a cutting tool, having a main body, a cutting head, which is joined to the free end of the main body and is formed, by primary shaping, as a sintered piece provided with at least one cutting edge, and a cooling lubricant feed, which is led through the main body axially and which has a cooling lubricant distributor inserted into the cutting head for redirecting cooling lubricant into the region of the at least one cutting edge. According to this disclosure, a plurality of protruding spacers for keeping a gap clear with respect to the cooling lubricant distributor and/or the main body are sintered on a supporting surface of the cutting head as primary shaped elements.

Abstract: A tool rest for a machine tool, with a plurality of rotary tools and a tool-rotating drive shaft supported rotatably so that its rotation is transmitted to each rotary tool. The tool rest includes: a plurality of input portions fixed to the tool-rotating drive shaft; and engaging portions corresponding to the respective input portions, rotatably supported and adopted to be driven in rotation by the input portions for engaging with engaged portions of each rotary tool to transmit power when a prescribed rotational phase is reached. Adjusting means is provided between a prescribed input portion and the engaging portion, for adjusting the phase of the engaging portion relative to the tool-rotating drive shaft such that the engaging portions and the corresponding engaged portions are engaged simultaneously.

Abstract: Provided is a tool system for including a machine tool configured for machining by the removal of material an object defining a machining surface.

Abstract: A device (1) for exchanging at least one cutting component (2a) of a rotating tool (2), in particular a milling tool (2), and more particularly, a hollow milling tool for machining workpieces made of plastic. The device has an aligning device (5) for orientating a position of the cutting component (2a) relative to a rotational axis (2c) of the tool (2) and an exchanging device (6) for releasing the cutting component (2a) from a part (2b) that remains on the tool (2) and for attaching another cutting component (2a) to the part (2b) that remains on the tool (2).

Abstract: The whirling device comprises a retaining ring extending around a ring axis and a central opening and having at least one receiving area for a machining element for machining rod-shaped material in the area of the central opening. A coolant supply comprises a supply sleeve which is arranged on the retaining ring via a rotary bearing and comprises a coolant connection and a supply area adjoining a connection area of the retaining ring. Starting from at least one inlet opening in the connection area of the retaining ring, at least one passage leads through the retaining ring to at least one outlet opening which faces the central opening of the retaining ring and is designed for a machining element in a receiving area. No space is required for the coolant supply between the retaining ring and an assigned lathe.

Abstract: The invention relates to a milling machine for producing a dental component, such as a crown or an abutment for example, from a blank. The milling machine includes a stop and a holder for the blank. The invention is characterized in that the holder is designed such that the holder can be surrounded by a mounting, which surrounds the holder, of the blank, and the surrounding mounting of the blank can be brought into contact with the stop for positioning purposes. The invention further relates to a corresponding blank.

Abstract: A machine tool includes: a tool magazine that stores a plurality of tools; a spindle that holds one of the plurality of tools stored in the tool magazine; a glossiness measurement unit that measures glossiness of a tapered outer surface of a taper shank of each of the plurality of tools; a deterioration determination unit that determines whether or not the tapered outer surface is deteriorated on the basis of the glossiness measured by the glossiness measurement unit; and a notification unit that notifies an operator of deterioration of the tapered outer surface if it is determined by the deterioration determination unit that the tapered outer surface is deteriorated.

Abstract: A removable die of a joining tool comprising a die head having an upper side, a bottom side and a die shaft extending from the bottom side and receivable and lockable in a die dome without rotation. The die shaft comprises: at least one first radial web forming an axial undercut on two sides by which the die shaft is lockable in the die dome by a linear inserting movement, at least one second exposed radial web, the radial length of which is adaptable to a diameter of the die dome to ensure a lateral guiding of the die shaft in the die dome and which is arranged between the die head and the first radial web, and an ejection surface by which the removable die can be moved out of the die dome and which is arranged at the free end of the die shaft opposite to the die head.

Abstract: A receiver-fastener apparatus comprises a receiver-fastener housing, a receiver-fastener turret, an indexing-collet assembly, an anvil, a receiver-fastener delivery assembly, and a swager assembly. The receiver-fastener turret is selectively rotatable relative to the receiver-fastener housing about a receiver-fastener-turret rotation axis (Z). The indexing-collet assembly is selectively movable relative to the receiver-fastener housing between an indexing-collet-assembly extended position and an indexing-collet-assembly retracted position along an indexing-collet-assembly axis (Y) that is parallel to the receiver-fastener-turret rotation axis (Z). The anvil is selectively movable relative to the receiver-fastener turret along an anvil axis (X) that is parallel to the receiver-fastener-turret rotation axis (Z). The receiver-fastener delivery assembly is configured to operatively position receiver fasteners for operative placement on shank fasteners, corresponding to the receiver fasteners.

Abstract: The invention relates to a tool storage system (32) as well as to a production facility (1) for free-form bending of workpieces (2) made from a metal sheet, by means of a bending press (3), comprising a tool storage unit (30), a tool manipulation unit (31), and a provisioning unit (55) having provisioning rails (56, 57). The tool storage unit (30) has an upper and lower storage rail (34, 35), which are disposed spaced apart from one another at a vertical distance, as well as locally fixed in place relative to one another. The tool manipulation unit (31) has tool manipulation devices (36, 37), wherein each of the same comprises a working rail (38, 42), an auxiliary rail (39, 43), a drawing-in device (40, 44), as well as a pushing-out device (41, 45). Each of the tool manipulation devices (36, 37) can be displaced laterally next to the storage rails (34, 35), along a longitudinal guide arrangement (46, 47).

Abstract: A shank-fastener apparatus comprises a shank-fastener housing, a shank-fastener turret, an indexing-pin assembly, a drill, and a shank-fastener delivery assembly. The shank-fastener turret is supported by the shank-fastener housing and is selectively rotatable relative to the shank-fastener housing about a shank-fastener-turret rotation axis (A). The indexing-pin assembly is supported by the shank-fastener housing and is selectively movable relative to the shank-fastener housing between an indexing-pin-assembly extended position and an indexing-pin-assembly retracted position along an indexing-pin-assembly axis (B) that is parallel to the shank-fastener-turret rotation axis (A). The drill is supported by the shank-fastener turret and is selectively movable relative to the shank-fastener turret along a drill axis (C) that is parallel to the shank-fastener-turret rotation axis (A). The shank-fastener delivery assembly also supported by the shank-fastener turret.