Abstract:
A coupling device for coupling together a tool holder (3) with a rotatable spindle (2) of a machining machine. The coupling de- vice comprises: - a female-shaped coupling part (10) with an internally cone- shaped section (11) and a male-shaped coupling part (20) with an externally cone-shaped section (21); - an annular groove (25) arranged in the externally cone-shaped section; - locking balls (15), which are radially displaceable in radial holes (16) in the internally cone-shaped section; and - a locking sleeve (30), which is arranged on the outside of the female-shaped coupling part and which is rotatable between a releasing position, in which the locking balls can be displaced radially to a retracted position while allowing a mutual axial displacement between the coupling parts, and a locking position, in which the locking balls are kept in engagement in said groove while preventing a mutual axial displacement between the coupling parts. The locking sleeve is provided with radially springing guide members (31 ), which co-operates with a respective locking ball.
Abstract:
The invention relates to a cutting tip (23) for a cutting tool (21 ), comprising a tool portion (25) comprising a cutting edge and a shank portion (27) connected at a first end (69) to the tool portion (25). The tip comprises at least three grooves (29), at least a portion (31 ) of each groove extending circumferentially around at least part of the shank portion, a centering structure (65) for centering the shank portion relative to an opening in a toolholder, and an axial stop (61 ) for limiting axial movement of the shank portion into the opening in the toolholder. The axial stop and the centering structure are different structures. The invention further relates to the cutting tool (21 ) comprising the cutting tip.
Abstract:
A countersink cutter or assembly and a method for countersinking to precise depths in various applications, including aerospace applications, using a pneumatically driven pistol grip motor attached to a countersink tool assembly. The countersink tool assembly, which has a multi-fluted cutter, is coupled to and is coaxial with the spindle. The cutter can be preset to a precise depth at the back end of assembly through the slot using a gage.
Abstract:
Die Erfindung betrifft eine Anordnung oder ein Werkzeug zum Übertragen eines Drehmoments, beziehungsweise zur wahlweisen Einschränkung oder Freigabe von radialen und /oder axialen Bewegungsfreiheitsgraden mechanischer Teile, mit einem Werkzeugkopf zum Erzeugen eines Drehmoments, in welchem sich eine hohlzylindrische Aufnahme befindet, in der ein zylindrisches Innenteil drehbar, gelagert ist, worauf das Drehmoment übertragen wird oder umgekehrt. Es wird vorgeschlagen, dass zwischen den einander zugekehrten Umfangsflächen der Aufnahme (2) und des Innenteils (3) mindestens ein Klemmkörper (10) vorhanden ist, welcher sich an der Umfangsfläche (4), oder einer umlaufenden Nut (14) des Innenteils (3) abstützt und in einer Vertiefung (13) gelagert ist, die sich tangential zu oder in einem spitzen Winkel (a) von etwa 5° bis 30° zu der Tangente (43) der Umfangsfläche (4) des Innenteils (3) im Werkzeugkopf (1) erstreckt, so dass der Klemmkörper (10) bei einer Drehung des Innenteils (3) in einer Richtung in die Vertiefung (13) geschoben oder gerollt wird, und somit eine Verdrehung des Innenteils (3) in der Aufnahme (2) möglich ist, und bei einer Drehung des Innenteils (3) in die andere Richtung eine Klemmung zwischen dem Innenteil (3) und dem Werkzeugkopf (1) bewirkt. Die Tangente (43) verläuft durch den Berührungspunkt des Klemmkörpers (10) mit der zugeordneten Umfangsfläche (4) oder der umlaufenden Nut (14) des Innenteils (3).
Abstract:
A coupling mechanism (12) for connecting a toolholder assembly (10) and a machine tool. The coupling mechanism (12) includes a first component (16) configured for removably securing the toolholder assembly (10) to the machine tool, wherein the first component (16) includes an axial forward end (18) defining a bore (20) that extends axially to an axial rearward end (22) of the first component (16) to form an inner surface (21) of the first component (16), the first component (16) having a plurality of apertures (24) disposed circumferentially thereabout that extend from an outer surface (26) of the first component (16) to the inner surface (21) of the first component (16). The coupling mechanism (12) further includes a second component (30) integrally formed with the first component (16) and configured for interacting with the machine tool to position the toolholder assembly (10) relative to the machine tool, wherein the second component (30) defines a positioning groove (34) on an outer surface (26) thereof.
Abstract:
The tool holder is arranged to receive a tool shank (50) of the tool (51) having a tapered surface. The holder comprises a body (10), a shank retaining collet (42) on the body and a nut (57) for causing the collet to grip the shank. The collet (42) has a shank engaging surface which, in use, lies substantially on the surface of a notional cone (50a) which tapers in the direction of withdrawal of the shank from the tool holder.
Abstract:
A cutting head (21) for a cutting tool (101) includes a cutting portion (23) and a shank portion (25). The cutting portion (23) includes a plurality of integrally formed cutting edges (27) and the shank portion (25) has a first end (31) adjacent the cutting portion (23) and a second end (33). The shank portion (25) has a first portion (35) of the shank portion (25) having a first diameter, a second portion (37) of the shank portion (25) having a second diameter smaller than the first diameter, and a cylindrical third portion (39) of the shank portion (25) having a third diameter larger than the second diameter. The first portion (35) of the shank portion (25) is closer to the first end (31) of the shank portion (25) than the second and third portions (37 and 39) of the shank portion (25) and the third portion (39) of the shank portion (25) is disposed closer to the second end (33) of the shank portion (25) than the first and second portions (35 and 37) of the shank portion (25). The first portion (35) of the shank portion (25) has an exterior surface (41) including at least one axially extending recess (43) extending from an end (45) of the first portion (35) of the shank portion (25) closest to the second portion (37) of the shank portion (25) toward the first end (31) of the shank portion (25). The cutting head (21) is entirely formed of a pressed and sintered cemented carbide material. Furthermore, a cutting tool (101) is disclosed.