Abstract:
Ein Werkzeug (10) zum Bearbeiten eines Werkstücks in einer Bearbeitungsmaschine hat einen im Betrieb maschinenseitigen, vorzugsweise genormten Verbindungsbereich (41) zum Verbinden des Werkzeugs mit einer numerisch gesteuerten Werkzeugmaschine, einen im Betrieb werkstückseitigen Werkzeugbereich (43) zum Bearbeiten des Werkstücks, und einen Mittenbereich (42) zwischen dem Werkzeugbereich (43) und dem Verbindungsbereich (41). Der Werkzeugbereich weist eine oder mehrere werkstückseitige Saugluftöffnungen (15) auf, die mit einem Saugluftkanal (16) im Inneren des Werkzeugbereichs kommunizieren, der zum Mittenbereich (42) des Werkzeugs führt. Im Mittenbereich ist ein gegenüber der Werkzeugachse seitlich versetzter Anschluss (11) für einen Saugluftanschluss (38, 39) vorgesehen.
Abstract:
A coolant feeding device of a machine tool feeding coolant through a coolant feed line (40) to a mist generating device (10) located at the tip of a spindle (9), wherein coolant forcing means (11) operating so as to force out coolant contained in a cylinder chamber (21) through a valve path (20) is provided at the tip of the spindle located near the mist generating device, the coolant forced out from the cylinder chamber is fed to the mist generating device at a proper pressure while the coolant contained in the coolant feed line is fed repeatedly to the cylinder chamber and, when the pressure of the coolant contained in the coolant feed line is lower than a specified value, the coolant flows into the cylinder chamber and, when it is higher than the specified value, the coolant contained in the cylinder chamber is forced out to the mist generating device, whereby a liquid dripping and its related troubles can be prevented from occurring and coolant can be fed intermittently to the mist generating device by a specified amount, and the operation of a coolant feed pump can be controlled to feed a proper amount of coolant to the mist generating device at a proper timing.
Abstract:
Tool-holder (5) which makes it possible to rotate a tool(1) at high speed around its axis of symmetry. Its tapered end (26) is engaged in the tapered bore (16) provided in the spindle (6) and is equipped with means of securing (14, 19) to the spindle (6) which exerts a clamping force suitable for fixing it rigidly by means of the spring (9) and which can thus rotate it at several thousand r.p.m. In a bore of suitable shape a clamp (2) is engaged, adapted to secure the electrode end (1) rigidly. An injection chamber (28) communicates with said bore and is connected by radial channels (27) to a fluid inlet. The clamp (2) has radial grooves to bring the cooling fluid (25) from the injection chamber (28) to the surface of the tool (1). An annular injector (50) holds the clamp by means of a nut (51); its wall facing the electrode-tool (1) is spaced at a distance (h) such that a film of liquid forms around the electrode (1). The spindle body (10) has a fixture (20, 21, 22) designed to connect it rigidly to the mobile element of a machining head or to an intermediary fixing element mounted on said mobile element. A sealed circuit (12, 13, 15) channels the liquid (25); it is connected by an input channel of small diameter which passes through the spindle body (10) to a liquid outlet in the mobile element of the machining head or in the intermediary fixing element mounted on said mobile element. An annular seal (14) of small diameter is mounted in the spindle body (10) around said channel (11'). Two carbon brushes (30) which supply electric current to the spindle / tool-holder / tool assembly are pressed against the channel (11') by springs (31). The motor (33) which rotates the spindle (6) around its axis of symmetry is mounted on the machining head and operates the gearwheel (41) by means of the belt (35). The connection element (36) is fitted with a claw system (37) which cooperates with corrresponding means (34) located under the motor (33).
Abstract:
A cutting machine waste extraction apparatus is for a cutting machine for cutting in horizontal planes which produces waste such as and chips and coolant at a cutting area on a cutting table. The cutting machine waste extraction apparatus includes ducting system and junction apparatus such that waste from cutting can be removed from the cutting area through a movable ducting system. The movable ducting system is constructed to receive and direct waste from the cutting area, up a vertical plane to a horizontal plane. A portion of the ducting system is fluidly connected by the junction apparatus to another portion of the ducting system, whereby in the horizontal plane at least a portion of the ducting is able to move with respect to other ducting. The junction apparatus includes a movable junction ducting for directing waste flow from one direction to be directed to another direction in a ducting. The ducting is shaped to have at least one movable flexible belt located to cover and seal the ducting. The junction apparatus includes said belt being movably supported by rollers to be slidably raised above a portion of the ducting to allow the junction apparatus to be movable along the ducting to allow waste therein while being continuously fluidly sealed.
Abstract:
The invention relates to a machining unit in which the pieces are carried by an electric turning spindle (3, 15) radially arranged on a turret (1) with a vertical axis of rotation. On rotation of the turret (1) the pieces are successively introduced into machining stations (4, 14), arranged peripherally around said turret (1) and comprising tool support means (19, 22). A large space is thus available around the periphery of the machine for housing the tools. The electric turning spindles (3, 15) are adapted to selectively hold the pieces at any fixed angle, thus permitting not only turning operations but also other machining operations on fixed pieces.
Abstract:
A machine tool comprising: a tool holder for holding a tool; a main shaft for detachably holding the tool holder; a main shaft supporting portion for rotatably supporting the main shaft; a drive means for rotating the main shaft at the main shaft supporting portion; a rotation locking means for locking the tool holder against rotation about the main shaft supporting portion; and a cutting oil supply means for supplying cutting oil to the tool through the rotation locking means.
Abstract:
A turning bearing mechanism (14) for a main shaft head serving as a universal head (15), which is required to provide a satisfactory torque as a driving system for turnably driving the heavy universal head and to afford a mechanical rigidity satisfactory to a turning shaft. Therefore, the turning bearing mechanism in which a static bearing (12) and a large diameter transmitting member (24) are provided to a turnably supporting shaft (10), which is provided with a lubricant supply device (30) and being highly rigid and free from a twist of a piping can be realized. The invention is most suitably used as the main shaft head, a so-called universal head of a machine tool such as a five-surface working machine.
Abstract:
Eine Vorrichtung (100) zum Transferieren eines Bauteils (102) zu einer Werkzeugeinrichtung (104), insbesondere einer Presse, weist eine Teleskopeinrichtung mit einer Basis (110), die einen Basisanschluss(132) für ein Kabel (130) aufweist,miteinem Träger (112), der gegenüber der Basis (110) verfahrbar angeordnet ist, undmit einem Schlitten (114) zum Transferieren des Bauteils (102), wobei der Schlitten (114) einen Schlittenanschluss (134) für das Kabel (130) aufweist und gegenüber dem Träger (112) verfahrbar angeordnet ist, auf. Ferner weist die Vorrichtung (100) eine Führungseinrichtung (140) zum Führen des Kabels (130) von dem Basisanschluss (132) entlang einer basisseitigen Seite des Trägers (112) zueinem Endabschnitt (142) des Trägers (112), um den Endabschnitt (142) herum und entlang einer schlittenseitigen Seite des Trägers (112) zu dem Schlittenanschluss (134), auf.
Abstract:
A cutting machine waste extraction apparatus is for a cutting machine for cutting in horizontal planes which produces waste such as and chips and coolant at a cutting area on a cutting table. The cutting machine waste extraction apparatus includes ducting system and junction apparatus such that waste from cutting can be removed from the cutting area through a movable ducting system. The movable ducting system is constructed to receive and direct waste from the cutting area, up a vertical plane to a horizontal plane. A portion of the ducting system is fluidly connected by the junction apparatus to another portion of the ducting system, whereby in the horizontal plane at least a portion of the ducting is able to move with respect to other ducting. The junction apparatus includes a movable junction ducting for directing waste flow from one direction to be directed to another direction in a ducting. The ducting is shaped to have at least one movable flexible belt located to cover and seal the ducting. The junction apparatus includes said belt being movably supported by rollers to be slidably raised above a portion of the ducting to allow the junction apparatus to be movable along the ducting to allow waste therein while being continuously fluidly sealed.
Abstract:
Eine Vorrichtung (5') zum Einsatz in einer Werkzeugmaschine (1) weist auf: eine erste Einheit (9); eine mit der ersten Einheit (9) verbundene zweite Einheit (10), wobei die erste Einheit (9) um eine Drehachse (D) relativ zu der zweiten Einheit (10) verdrehbar ist; eine mit der zweiten Einheit (10) verbundenen Motorspindel (6); eine Leitungsdurchführung (15), die sich entlang der Drehachse (D) aus der ersten Einheit (9) in die zweite Einheit (10) hinein erstreckt; Leitungen (16), die aus dem Inneren der ersten Einheit (9) durch die Leitungsdurchführung (15) sowie durch die zweite Einheit (10) hindurch in die Motorspindel (6) verlaufen; und eine Leitungs-Führungseinrichtung (17), die in der ersten Einheit (9) ausgebildet ist und die zur Führung eines Teils der Leitungen (16), der in der ersten Einheit (9) unmittelbar vor der Leitungsdurchführung (15) angeordnet ist, dient, wobei die Leitungs- Führungseinrichtung (15) in einer Ebene ausgebildet ist, die senkrecht zur Drehachse (D) ausgerichtet ist, und wobei die Leitungs-Führungseinrichtung (17) die Leitungen (16) bei Drehung der zweiten Einheit (10) gegenüber der ersten Einheit (9) so nachführt, dass ein durch die Drehung bewirktes Verdrillen der Leitungen (16) im Bereich der Leitungsdurchführung (15) vermieden oder reduziert wird.