摘要:
The invention relates to an advancing power saw used for any metal cutting application. The power saw (10) is provided with an oscillating mechanism (30) that drives the saw (46) up and down in a vertical direction. A hydraulic cylinder (260, 262) and/or a pulley assembly (194) advances the saw toward the metal being cut while the saw is oscillating creating a circular pathway for the saw blade during the cutting operation. A balancing apparatus (26, 244) is provided in association with the saw blade that advances in an opposite direction to that of the saw blade to act as a counterbalance (146) for the saw. The balancing apparatus has a weight provided at one end which dampens the vibrations created by the saw during the cutting operation and substantially equalizes pressure on the saw blade. For cutting high tensile strength metals having a combustion point within the operating temperatures of cutting apparatus, for example titanium bars, a rotating holder (300) is provided for significantly reducing the cutting time.
摘要:
A cutting head (1) for a cutting-off machine (100) comprises a bearing base (10), a support structure (20) mounted to the bearing base (10) to rotate about a rotation axis (Z-Z), a cutting unit (30) with a circular blade (31) rotating about a rotation axis (A-A), said cutting unit (30) being mounted to tilt about a tilt axis (U-U), parallel to the rotation axis (A-A) of the circular blade (31) between a rest position and a cutting position, a circular blade inclination unit (40), which is coupled to the cutting unit (30) to incline the cutting unit (30) about an inclination axis (Y-Y) and a blade feeding unit (50), fixed to the support structure (20) and coupled to the blade inclination unit (40) to move the cutting unit (30) along a rectilinear feeding direction (V-V), which is parallel or coincident with the inclination axis (Y-Y), between a first travel limit position and a second travel limit position.
摘要:
A sensing mechanism (12) for detecting user contact with an active portion (26) of the power tool (10) is provided. In addition, a safety mechanism (14) for preventing prolonged user contact with the active portion (26) of a power tool (10) is provided. The safety mechanism (14) is configured to actuate upon receipt of a signal from the sensing mechanism (12). According to a first aspect, the safety mechanism (14) is arranged to rapidly displace the active portion (26) away from a user extremity. Alternatively, according to a second aspect, the safety mechanism (14) is arranged to rapidly urge an extremity of the user away from the active portion (26) of the power tool (10).
摘要:
A sensing mechanism (12) for detecting user contact with an active portion (26) of the power tool (10) is provided. In addition, a safety mechanism (14) for preventing prolonged user contact with the active portion (26) of a power tool (10) is provided. The safety mechanism (14) is configured to actuate upon receipt of a signal from the sensing mechanism (12). According to a first aspect, the safety mechanism (14) is arranged to rapidly displace the active portion (26) away from a user extremity. Alternatively, according to a second aspect, the safety mechanism (14) is arranged to rapidly urge an extremity of the user away from the active portion (26) of the power tool (10).
une lame de scie (204) définissant un plan P; un dispositif d'appui monté sur le module de sciage (100) et mobile en translation parallèlement au plan P par rapport au module de sciage (100); et un générateur de force (112) adapté à générer une force sur le dispositif d'appui dans une direction parallèle au plan P.
Le module de sciage (100) étant caractérisé en ce que la force générée se trouve sensiblement dans le plan P.
摘要:
Bei einem Sagetisch (1) mit ebener, zur Auflage von Werkstücken vorgesehener Tischplatte und mit einem unter der Tischebene angeordneten, von einem Motor angetriebenen und mit einem Sägeblatt (7) ausgestatteten Sägeaggregat (8), das auf einem unterhalb der Tischebene angeordneten und in mit dem Sägetisch (1) verbundenen Führungen geführten Schlitten in der Ebene des Sägeblattes (7) entlang der Tischebene verschieblich ist, wobei die Verschiebung des Sägeaggregates durch einen über die Tischplatte (2) des Sägetisches (1) hinaussteheden Schwenkhebel (13) mit Handgriff (14) erzeugbar ist, wird vorgeschlagen, die Bewegung des Schwenkhebels (13) durch ein platzsparendes im Gehäuse (9) des Sägetisches untergebrachtes Übersetzungsgetriebe von geringer Bauhöhe in eine lineare Bewegung des Sägeaggregates (8) zu übersetzen. Damit wird ein ergonomisch günstiger Schwenkwinkel bei langem Verschiebeweg des Sägeblattes (7) erreicht.
摘要:
Der Antriebsmotor (1) treibt ein Bearbeitungswerkzeug (2), das mit Hilfe eines Vorschubmotors (3) vorgeschoben werden kann. Beide Motoren (1, 3) werden von der gleichen Hydrau likpumpe (4) mit Druckmittel versorgt. Ein Mengenteilerven til (5) teilt den von der Hydraulikpumpe kommenden Oelstrom auf, wobei ein Steuerventil (24) den Druckmittelstrom im Vorschubmotor derart steuert, dass bei steigendem Wider stand am Bearbeitungswerkzeug die Leistung am Vorschubmotor sinkt. Dadurch ist ein leistungsgeregelter Betrieb des Bearbeitungswerkzeugs möglich. Gleich wie der Vorschub kann auch die Zustellung des Bearbeitungswerkzeugs über einen Zustellmotor (7) erfolgen.
摘要:
A cutting head (1) for a cutting-off machine (100) comprises a bearing base (10), a support structure (20) mounted to the bearing base (10) to rotate about a rotation axis (Z-Z), a cutting unit (30) with a circular blade (31) rotating about a rotation axis (A-A), said cutting unit (30) being mounted to tilt about a tilt axis (U-U), parallel to the rotation axis (A-A) of the circular blade (31) between a rest position and a cutting position, a circular blade inclination unit (40), which is coupled to the cutting unit (30) to incline the cutting unit (30) about an inclination axis (Y-Y) and a blade feeding unit (50), fixed to the support structure (20) and coupled to the blade inclination unit (40) to move the cutting unit (30) along a rectilinear feeding direction (V-V), which is parallel or coincident with the inclination axis (Y-Y), between a first travel limit position and a second travel limit position.
摘要:
Fast-acting and low-inertia actuators (10) useable in various applications where a high force must be applied very quickly are disclosed. Power tools with detection systems configured to detect a dangerous condition between a person and a cutting tool are disclosed. In power tools, for example in a woodworking machine, a fast-acting and low-inertial actuator (10) as disclosed herein can be used to retract a blade (400) upon detection of a dangerous condition by a detection system. The actuator includes a charge of pressurized fluid and one or more electromagnets (42) to selectively retain or release the pressurized fluid.