摘要:
A coupler for a quick change rotary cutting tool assembly allowing a cutter to be quickly and releasably coupled to a shank wherein the coupler has a cylindrical portion with a threaded portion to engage the shank and a portion with a transverse groove with undercut walls to form recesses. The cutter has an anchor made as a disk with parallel flats which engage the recesses of the cylindrical portion to releasably secure the cutter to the shank.
摘要:
Efficient plunge cutting work in which the tool body moves forward and backward in the axial direction to cut the wall face of a workpiece at high feed-speed, is possible even in the cutting process with backward motions. The tool body 1 has a cylindrical shape with an axis O as its center axis, and provides the insert pocket 3 in the outer periphery close to the tip. The cutting insert 10 is detachably attached in the insert pocket 3. Then, by rotating the tool body 1 and by feeding it along the axis O, the cutting insert 10 cuts the wall face of a workpiece.Furthermore, the insert pocket includes a bottom face which faces the tool rotational direction and, wall faces 3B, 3C and 3D which extend from the bottom face toward the tool rotational direction. Of which, the wall face 3B is located in the inner circumference close to the tip, faces the outer peripheral side, and is also an incline wall face which inclines radially outward along the axis O to the tip, in a view from a position opposite the bottom face.
摘要:
A universal cutter structure includes a double-headed screw made of tungsten steel or steel. The double-headed screw has outer threads at front and rear sections thereof and a positioning block at a middle section thereof. The front and rear sections of the double-headed screw are screwed to an upper threaded trough of a cutter rod and a lower threaded trough of a cutter head, respectively. The positioning block engages with the cutter rod and the cutter head directly or indirectly such that the parts are tightened to be a one-piece cutter. When the double-headed screw is removed, the cutter rod is able to be coupled with a screw and a positioning block provided at a distal end of the cutter head. The present invention provides a better steadiness for processing and is convenient for replacement.
摘要:
A ring slicer with easily removable knife and knife assembly. According to one aspect of the invention, a ring assembly comprises two end plates for rotation about an axis of rotation. Each of the knife assemblies comprises an elongate knife having a cutting edge extending along an elongate axis, a base, and a clamp for clamping the knife to the base. The knife assemblies are adapted for installation between the end plates such that the shoulder portions of at least two shoulder bolts extend through one of the end plates into the base.
摘要:
A machine tool designed to be fitted with a cutter which is retained by a central screw includes a plate which is removable in relation to the body of the tool. The plate possesses a cut-out for the positioning of a machining cutter with a central hole, this cut-out having two lateral faces and a third face which bears elastically against the machining cutter.
摘要:
The present invention relates to embodiments of a cutting tool holder having at least one insert pocket, wherein at least one insert pocket comprises a side surface and at least one antirotation stop protruding from the side surface. The antirotation stop may comprise at least two substantially planar surfaces. In certain embodiments, the cutting tool holder may have a pocket which comprises a bottom surface and an antirotation stop having three substantially planar surfaces that are substantially perpendicular to the bottom surface.
摘要:
A material removal having a plurality of cartridges mounted on an active portion where a plurality of seating members mounted in each of the plurality of cartridges pivots about an axis between a retracted position and an extended position is disclosed. Alternative embodiments have a single pivotable seating member. The pivotable extending seating members operate to extend and retract in a scissors-like motion and enable compact and efficient machining operation, particularly for crank shaft bearing supports.
摘要:
An indexable insert has one or more recesses formed in a frontside or backside surface which receives a surface of the head of a locking screw. When mounted, the insert is forced against respective support surfaces of an insert pocket. The locking screw is threaded into a counterbored tap hole to engage the insert and provide side locating forces and clamping forces to secure the indexable insert in the insert pocket. More particularly, the indexable insert has a shaped surface recess that mates to a complimentarily-shaped surface on the head of a locking screw and secures the indexable insert in multiple dimensions to a seating surface. A material removal tool and a method of mounting the indexable insert are also disclosed.
摘要:
A cutting tool holder adapted for mounting thereon a cutting insert having a top face, a bottom face and formed with an insert bore having an inner surface extending between the top and the bottom face. The holder comprises a seat defined by a bottom surface and at least one side wall angled to the bottom surface, a seat bore with a bore axis having an open end at the bottom surface of the seat, and a securing mechanism for securing the cutting insert in the seat. The securing mechanism comprises a securing pin received within the seat bore and having a body with an outer surface extending between a proximal end and a distal end of the body and defining a pin axis therealong. The securing mechanism further comprises a displacement arrangement adapted for axially displacing the securing pin along the bore axis of the seat bore between at least a first, mounting position in which the distal end protrudes from within the seat bore through the bottom surface into the seat to a first extent so as to allow the cutting insert to be placed within the seat, having its bottom face aligned against the bottom surface, and a second, securing position in which the distal end protrudes from within the seat bore through the bottom surface into the seat to a second extent, greater than the first extent, so as to engage the inner surface of the insert bore, thereby securing the insert in place.
摘要:
A knife assembly and chipping knife therefor. The knife assembly includes a knife, and employs an upper clamping member and a lower clamping member for clamping the knife therebetween. The knife has an elongate axis and two spaced apart cutting edges parallel to the elongate axis and defining a first reference plane. The knife is further defined by a plane of reflective symmetry that is perpendicular to the first reference plane and which contains the elongate axis. The knife has a front side and a back side spaced from the front side. The front and back sides terminate in the cutting edges. A deflector ridge projects from the front side and reaches a point of greatest maximum projection of the knife from the first reference plane, the point lying in the plane of reflective symmetry.