摘要:
The invention relates to a tool for machining workpieces by chip removal. A base body which rotates during the machining of the workpiece is provided with cartridges that are screwed thereto. According to the invention, the screwing means are arranged on the base body of the tool in such a way that they are supported thereon by means of anchoring means comprising a bearing surface, enabling a favourable force distribution to be obtained during the fixing of the cartridges.
摘要:
An anti-abrasive layer which is useful for tools contains nitrides of the metal elements Cr, Ti and Al; and at least one element (κ); wherein a proportion of Cr in said anti-abrasive layer is more than 65 at %; a proportion of Al is 10 to 25 at %; and a proportion of Ti is 10 to 25 at %, based on a total amount of metal atoms in said anti-abrasive layer.
摘要:
The invention concerns a clamping element of a coupling device for releasably but axially and rotationally fixing tool components for dry machining (MMS technology) and for wet machining. The element provides a friction-type connection between the components to be coupled. A cooling tube is arranged at the center of the coupling device. The spindle is provided with an elongated hole run through which cooling tube passes. A variable contour between the base body and the clamping segment enables an increase in distribution of forces for the support of the clamping segments. The novel geometry of the clamping segments results in novel contours in the base body with smoother transitions, hence a better force distribution, thereby reducing material breakage and a more reliable and robust clamping. By virtue of their novel geometry, the clamping segments have an increased surface enabling larger clamping screws to be used.
摘要:
The invention relates to a deep hole drill consisting of three sections, a drill head, a shank and a clamping element. The drill head and the shank are provided with at least one preferably straight-grooved machined groove. In order to be able to carry out drilling in a more economic manner with improved feed values, the shank is made of a hard metal. The drill head can be made of a hard metal which is different from the hard metal of the shank.
摘要:
A drilling tool comprising at least one machined groove and at least one web which extend from a tip of the tool to the shank of the tool. A main cutting edge and an inner cooling channel are formed on each web. Said cooling channel extends from the tip to an opposite drill end and has a continuously extending cross-sectional contour enclosing an imaginary circle with a center point. The cross-sectional contour preferably comprises two maximum curvature values whose distance to the drill axis is greater in the direction of a line between the center point and the drill axis or equal to the distance of the center point to the drill axis. Preferably, minimum wall thicknesses exist between the inner cooling channel and (1) the outer periphery of the drill, (2) the machined surface and (3) the non-machined surface, between a minimum and a maximum.
摘要:
A shaft tool with a machining section and a cylindrical shaft which comprises at least one internal coolant/lubricant duct which on its end facing away from the machining section comprises at least one orifice, wherein the shaft forms a conical fitting surface that encloses the orifice. A device comprising a shaft tool and a connection piece, the connection piece comprising a centric coolant/lubricant supply duct which exits in an apex region of an inner cone which accommodates in a positive-locking manner the conical fitting surface of the shaft tool, the conical fitting surface facing the inner cone.
摘要:
A method for the production of threads, especially internal threads, by means of a rotationally driven thread former, with which the thread pitches are driven in and out of the surface of the workpiece in a chipless fashion by pressure forming, in particular in and out of the inner surface of a workpiece bore. In order to be able to produce threads of different nominal diameter especially economically and with improved joining quality in the area of the thread, the thread is formed such that a shank tool in the fashion of a thread miller, equipped with at least one profile projection, preferably two profile projections located at a constant distance from one another, where the profile projections at its forming head are constructed as continuous over the circumference and with radial extension varying over the circumference, is driven into the workpiece initially at a circumferential point of the workpiece bore, preferably is brought to the total thread pressing depth, and while substantially retaining the eccentricity set with respect to the axis of the workpiece bore, executes a relative circular movement running through 360° (circular movement) relative to the axis of the tool bore, while the forming head simultaneously executes a constant axial relative feed movement by the extent of the thread pitch to be produced.
摘要:
The invention relates to a deep hole drill consisting of three sections, a drill head, a shank and a clamping element. The drill head and the shank are provided with at least one preferably straight-grooved machined groove. In order to be able to carry out drilling in a more economic manner with improved feed values, the shank is made of a hard metal. The drill head can be made of a hard metal which is different from the hard metal of the shank.
摘要:
An apparatus is disclosed for receiving a rotary body (412) in a centered and axially fixed manner, in particular a grinding wheel, on a supporting part (410) with an axial centering spike (418) which projects in to the central opening (416) of the rotary body (412) and a substantially radial collar (480) adjacent thereto, against which the rotary body (412) may be axially clamped. In order to allow extremely rapidly rotating bodies (412) to be clamped extremely accurately with simple hand grips, an elastically expandable, preferably thin-walled axial extension (440) is arranged between the centering spike (418) and the opening (416). The axial extension (440) is supported on the outer surface of the centering spike (418) and on the inner surface of the opening (416) and together with a clamping plate (436) forms a single adapter piece (434). Preferably a captive clamping mechanism received in the adapter piece (434) and on the supporting piece (410) allow the clamping plate with its radial collar to be pressed against the rotary body (412) while the axial extension (440) is elastically expanded.
摘要:
A shank cutter has plural circumferential cutting edges which run in a helical manner in the region of its cutting section and of which at least one critical number are equipped in each case with a preferably essentially flattened roughing profile with chip-separating grooves with rounded bases, so that the chip-separating grooves of cutter ridges which are adjacent in the circumferential direction are axially offset relative to each other. To create a tool which provides long service life by combined advantages of a vibration-stabilized finishing cutter and a conventional roughing cutter, at least one circumferential cutting edge has an angle of twist which differs from that of another circumferential cutting edge. In addition, the chip-separating grooves of the circumferential cutting edges which are equipped with a roughing profile in each case merge into a preferably essentially flattened central section of the roughing profile by means of a predefined flank radius.