摘要:
The invention relates to a tool arrangement with a screw-in tool (1) and a tool receiver (7), the screw-in tool (1) having a thread (4) for engagement in a counter thread (11) on the tool receiver (7). According to the invention, the counter thread (11) and the thread (4) have different thread contours and therefore, in the screwed condition, these adapt to one another by elastic deformation.
摘要:
The present invention provides a new drill chuck that resolves the problem that the excessive clamping force of the existing drill chuck makes it inconvenient to open the drill chuck and easily damages the cutters. The new drill chuck comprises a front-body, an after-body, and clamping jaws, wherein a thread is provided on the clamping jaw, the after-body is provided with master gears, slave gears are provided between the clamping jaws and the after-body, the master gear fits with the slave gear, a thread is provided inside the slave gear, and the thread of the slave gear fits with the thread of the clamping jaw.
摘要:
The holder for a head replacement-type cutting tool (1) is provided with a holder main body (2) and a tubular coupling member 3 which is housed in an attachment hole (4) formed on the holder main body (2) and made of a metal material lower in hardness than the holder main body (2). A recessed part is formed on an inner circumferential face of the attachment hole (4), the coupling member (3) is engaged with the recessed part by firmly attaching the outer circumferential face thereof on the inner circumferential face of the attachment hole (4), and the coupling member (3) is provided with an attachment screw part (3E) which is screwed into a head-side screw part (13) formed at the replacement-type cutting head (10).
摘要:
Wechselkopfhalter-System (20) zur Spindelaufnahme in einer rotierbaren Spindel, mit einem, eine konische Werkzeugaufnahme (3.1) und eine Mitnehmervorrichtung (8) aufweisenden Wechselkopfhalter (3), und einem in die konische Werkzeugaufnahme (3.1) einsetzbaren Werkzeugkopfelement (9) mit einer Durchbohrung für eine zentrale Befestigungsschraube (10), wobei die zentrale Befestigungsschraube ein Kühlmittelkanal aufweisen kann und der Wechselkopfhalter (3) eine Kühlmittel-Bohrung (1) zum Zuführen eines Kühlfluides für ein Innenkühlsystem aufweist, und im Bereich der konischen Werkzeugaufnahme (3.1) eine radiale Kühlmittelbohrung (11) von der längsaxialen Kühlmittel-Bohrung (1) zum Rand des Wechselkopfhalters (3) ausgebildet ist, die ein Außenkühlsystem bildet, und wobei ein Kühlsystem-Wechselmittel zum Umbauen des Wechselkopfhalter-Systems auf Innen- oder Außenkühlsystem vorgesehen ist. Das Kühlsystem-Wechselmittel ist so ausgebildet, dass der Umbau des Wechselkopfhalter-Systems auf Innen- oder Außenkühlsystem lediglich durch Austausch der zentralen Befestigungsschraube (10) mit einem zu wählenden Sperrmittel bei gespannt in der Spindel einer Werkzeugmaschine verbleibendem Wechselkopfhalter (3) oder Wechselkopfhalter-System (20) mit Werkzeugkopfelement (9) ausführbar ist.
摘要:
The invention relates to a screwdriving tool (1) and to a tool holder (2) for such a screwdriving tool. The screwdriving tool (1) contains a tool head (3) and a tool shank (4) having an outer thread (5) and a supporting region arranged between the tool head (3) and the outer thread (5). According to the invention, the supporting region is formed by two conical bearing faces (6, 8) having different cone angles.
摘要:
The present invention provides an improvement ( 20 ) in a Davenport(R) automatic screw machine having a stationary spindle. The improvement broadly includes a quick-change mechanism ( 26 ) associated with the stationary spindle ( 22 ). The mechanism includes mating frusto-conical first and second surfaces ( 28, 31 ) on the spindle and tool holder, and a multi-lead threaded connection ( 32 ) between the tool holder and stationary spindle such that the tool holder may be quickly locked into mating engagement with the stationary spindle by relative rotation therebetween through a short angular distance. The invention may also include an adjustment mechanism ( 33 ) that allows the axis (x 2 -x 2 ) of the tool to be aligned with the axis (x 1 -x 1 ) of a spaced rotatable spindle. This adjustment mechanism includes a base member ( 34 ), an adjustment member ( 35 ), and a locking mechanism ( 37 ) for selectively holding the adjustment member in the desired position relative to the base member.
摘要:
A rotary cutting tool (20) for reaming operations, including a generally cylindrically shaped tool shank (22) with a longitudinal axis (Al) having a plurality of radially protruding and generally axially extending clamping wings (38), and a cylindrically shaped cutting head (24) having a central bore (58) and a plurality of axially extending cutting edges (62) with an outer cutting diameter (D). The central bore (58) has a plurality of circumferentially and alternately spaced bore sectors (70) and bore recesses (72), where each bore sector (70) has an outwardly inclined female clamping surface (74) in clamping contact with an outwardly inclined male clamping surface (40) of each clamping wing (38). A cylindrical shaped locking sleeve (26) and a cylindrical shaped clamping nut (28) assembled to the tool shank (22) provide a means to adjust the clamping contact forces and the cutting diameter (D) of the cutting head (24), and also enable removal and replacement of the cutting head without removal of the locking sleeve (26) and clampingnut (28).
摘要:
The invention relates to a device for attaching a ring-shaped milling tool carrier (10) by means of a threaded connection (15: Fig 5) to the machine receiver (11).
摘要:
A cutting tool (1), and a loose top (2) therefore, includes two parts (1,2) detachably connected to each other via a threaded joint in which co-operating male and female threads (10;11) are included in the form of helicoidal ridges (10;11). The profile shape of each helicoidal ridge (10;11) is defined by a top (21;21a) and two flanks (22,23;22a,23a), which delimit a helicoidal groove (24;24a) having a bottom (25;25a). The first flank (22;22a) is inclined in relation to a center axis (C) of the tool at a first angle (α) that is smaller than a second angle (β) of the second flank (23;23a) in relation to the center axis (C). Accordingly, the thread ridge (10;11) is reinforced in comparison with thread ridges having a symmetrical profile shape, whereby larger tensile forces than compressive forces can be applied to the threaded joint while avoiding damage to the thread ridges (10;11).