Class / Patent application number | Description | Number of patent applications / Date published |
407103000 | Apertured tool | 46 |
20090324349 | Turning tool and a turning insert - A turning tool including a basic body having an insert seat, an indexable turning insert having a triangular basic shape, and a tightening element fixing the turning insert in the insert seat. The insert includes an upperside and an underside between which three side surfaces extend that are situated in a first imaginary, equilateral triangle and therefore converge in pairs at an angle of 60° toward corners in which cutting edges are included. The turning insert is engaged with the insert seat via an interface that includes elongate and straight, female-like and male-like engagement members, which are in engagement with each other in order to prevent turning of the turning insert. The insert seat includes a supporting surface having a corner section against which an active corner of the turning insert is applied. The insert seat includes a single active engagement member, which is spaced-apart from the supporting corner section, and is in engagement with one of three engagement members included in the turning insert and located in a second imaginary triangle having an equilateral shape, which is smaller than the first imaginary triangle and rotated in relation to the first imaginary triangle. | 12-31-2009 |
20100119313 | Eight-Edged Cutting Insert, and Tool Holder for Same - The invention relates to an eight-edged rotatable and reversible cutting insert having two opposite, substantially square base surfaces which are twisted relative to one another about a central axis running perpendicularly to said base surfaces, and having four identical side surfaces, wherein a main lip is formed between each base surface and each side surface. A bearing surface is formed between two chip grooves which extend along the associated main lip of the respective side surface, said bearing surface extending symmetrically beyond the groove ends of the adjacent chip groove and transversely to the main lips until its adjoins the latter. | 05-13-2010 |
20100189521 | Cutting Insert and Cutting Tool - A double-sided cutting insert has top and bottom surfaces and two major side surfaces connected by two minor side surfaces. Each major side surface has two distinct relief surfaces which are inclined in opposite directions and merge at a transition surface extending between top and bottom surfaces. A first major cutting edge is defined between the first relief surface and the top surface and a second major cutting edge is defined between the second relief surface and the bottom surface. Each major cutting edge is tangent to an associated transition cutting edge defined between the transition surface and the insert top or insert bottom surface. An insert holder for the insert has three support sections accordant with three abutment sections of the insert. | 07-29-2010 |
20100254775 | Cutting Insert Having Abutment Bars and Cutting Tool Therefor - A cutting tool has a cutting insert secured in an insert pocket. The cutting insert has two abutment bars located on its opposing side surfaces. The abutment bars of a respective side surface have generally coplanar outer surfaces which define an imaginary plane that does not intersect any portion of the respective side surface apart from the outer surfaces. The outer surfaces of one set of abutment bars engage a major wall of the insert pocket. | 10-07-2010 |
20100254776 | Cutting Insert having an Engagement Protrusion and Cutting Tool Therefor - A cutting tool with a cutting insert secured in an insert pocket. The cutting insert has a single outwardly protruding engagement protrusion located on its opposing side surfaces. The engagement protrusion of a respective side surface has an outer surface that defines an imaginary plane that does not intersect any portion of the respective side surface apart from that outer surface. The outer surface of one engagement protrusion engages a major wall of the insert pocket. | 10-07-2010 |
20100272522 | Cutting Insert and Cutting Insert Assembly - A cutting insert assembly having an insert pocket having a pocket bore, a cutting insert and a fastening member coupling the cutting insert in the insert pocket. The cutting insert having a cutting insert bore, a first surface, a second surface and a peripheral surface extending therebetween. The first and second surfaces meeting the peripheral surface at first and second peripheral edges, respectively, at least a portion of at least one of the first and second peripheral edges forming a cutting edge. The cutting insert bore having at least two portions, the smallest of which, has an oval cross section allowing a for quick replacing or indexing of the cutting insert, without having to completely remove the fastening member from the pocket bore. | 10-28-2010 |
20100290846 | Cutting Insert Having Recessed Planar Portion and Cutting Tool Therefor - A cutting tool includes a cutting insert releasably retained therein. The cutting insert has at least a first non-planar side surface, which includes a planar portion that is recessed with respect to other portions of the side surface such as the cutting edges thereof. The planar portion may be spaced apart from the cutting edges associated with that side surface. The planar portion is the only portion of the side surface to engage an abutment region or regions of a supporting wall of the cutting tool. The cutting insert may be double-sided, and include a second, opposing side surface having a respective planar portion formed therein, wherein the two opposing side surfaces interchange positions upon indexing of the cutting insert. The planar portion of the second side surface, which does not engage the abutment region or regions of supporting wall, does not interfere with the cutting operation, or the functionality of the cutting insert. | 11-18-2010 |
20110110733 | Cutting Tool and Cutting Insert Therefor - An indexable cutting insert has opposing side surfaces and two cutting portions, one of which is operative when the cutting insert is retained in an insert holder. An insert bore opens out to both side surfaces. Two major abutment surfaces located on opposite sides of the insert bore extend from one of the side surfaces, one major abutment surface being closer to the operative cutting portion than the other. Two minor abutment surfaces extend from the same side surface. In a plan view of the side surface, the minor abutment surfaces are transverse to the two major abutment surfaces and also to base abutment surfaces associated with the major and minor abutment surfaces. | 05-12-2011 |
20110116878 | Indexable Cutting Insert - The invention relates to a cutting insert having two working surfaces facing away from each other and having a through hole extending between the working surfaces for receiving a fastening bolt, having a peripheral cutter rim having a cutting edge on each working surface and a central recess surrounded annularly by the cutter rim, having a number of segment-like molded parts corresponding to the number of different cutter positions of a working surface, for positioning the cutting insert in the corresponding cutting position. | 05-19-2011 |
20110142556 | TOOL FOR MACHINING, IN PARTICULAR LONGITUDINAL TURNING TOOL - The present invention relates to a tool for machining a workpiece, comprising a tool body, a cutting tool, and fastening means for fastening the cutting tool in a receiving recess of the tool body, the cutting tool having a cutting edge and a cutting-tool through-bore, and the tool body having a tool-body through-bore that opens into the receiving recess, wherein the fastening means comprises a clamping bushing that is provided with an internal thread, and comprises a clamping screw that is provided with an external thread corresponding to the internal thread of the clamping bushing, which are inserted into the cutting-tool bore or into the tool-body bore from opposing sides in order to fasten the cutting tool to the tool body, the clamping bushing is screwed directly to the clamping screw, irrespective of whether it is inserted into the cutting-tool bore or into the tool-body bore, and anti-rotation means are provided to prevent the clamping bushing from rotating about its longitudinal axis when being screwed and undone by means of the clamping screw. | 06-16-2011 |
20110236143 | Cutting Insert - A cutting tool has a main body provided with a pocket part and a cutting insert seated in the pocket part. The pocket part includes at least one side wall and bottom surface. The bottom surface of the pocket part includes a pocket part base surface, a first pocket part inclined surface connected to an inner end of the base surface on an inside of the main body, and a second pocket part inclined surface connected to an outer end of the base surface on an outside of the main body. The cutting insert has an upper surface, a lower surface and side surfaces connecting the upper surface and the lower surface. The lower surface of the cutting insert includes an insert base surface, a first inclined surface inclined upwardly from a first side of the base surface towards a first side surface, and a second inclined surface inclined upwardly from a second side of the base surface towards a second side surface. The cutting insert is seated in the pocket part such that the second inclined surface of the cutting insert abuts the second pocket part inclined surface and the insert base surface is spaced apart from the pocket part base surface. | 09-29-2011 |
20110305535 | CUTTING INSERT WITH RECESSED INSERT SUPPORTING SURFACE, AND CUTTING TOOL - A cutting insert includes a first chip surface, a second surface on an opposite side of the insert from the first chip surface, and a side surface extending between the first chip surface and the second surface, at least part of one first cutting edge being defined by an intersection of the side surface with the first chip surface. The side surface includes at least one recess, the recess including an insert supporting surface for supporting the insert relative to a protruding abutment surface on a toolholder and a flat auxiliary insert supporting surface for supporting the insert relative to a non-protruding, flat abutment surface. A cutting tool is also provided. | 12-15-2011 |
20120009030 | Tool For Machining, In Particular Straight Turning Tool - The present invention relates to a tool for machining a workpiece, comprising a tool body, a cutting tool and fastening means for fastening the cutting tool in an accommodating recess of the tool body, wherein the cutting tool has a cutting edge and a cutting tool through-bore, and wherein the tool body has a tool body through-bore opening into the accommodating recess. According to the invention, in order to provide a simple possibility of being able to change the cutting tool from both sides, depending on accessibility, the fastening means have a clamping bush provided with an internal thread and a clamping screw provided with an external thread corresponding with the internal thread of the clamping bush, the clamping screw is selectively either inserted through the cutting tool bore into the tool body bore and is screwed to the clamping bush or is inserted from the opposite side through the tool body bore into the cutting tool bore and is screwed to the clamping bush, wherein both ways of inserting of the clamping screw are enabled, and anti-rotation locking means are provided which prevent rotation of the clamping bush about the longitudinal axis thereof during the screwing-down and release by means of the clamping screw, wherein the anti-rotation locking means are formed by a tapered surface on the clamping hush and/or by a tapered surface on the clamping screw head, said tapered surfaces being adapted to at least part of the tool body bore and/or the cutting tool bore. | 01-12-2012 |
20120034041 | CUTTING INSERT, CUTTING TOOL, AND METHOD OF CUTTING WORKPIECE USING THE SAME - A cutting insert of the present invention includes an upper face, a lower face, a side face located between the upper face and the lower face, an upper cutting edge located at the intersection of the upper face and the side face, and a lower cutting edge located at the intersection of the lower face and the side face. The side face includes at least one upper concave part which extends up to the upper face along a thickness direction, and divides the upper cutting edge into a plurality of divided upper cutting edges, and at least one lower concave part which extends up to the lower face along the thickness direction, and divides the lower cutting edge into a plurality of divided lower cutting edges. The aforementioned at least one upper concave part and the aforementioned at least one lower concave part are separated from each other through a thick part being continuous along a width direction of the side face. A cutting tool including the cutting insert, and a method of cutting a workpiece using the cutting tool are also provided. | 02-09-2012 |
20120082521 | CUTTING TOOL - A cutting tool has a main tool body and at least one insert seat disposed thereon. The seat has a bottom surface for mounting a cutting insert, and further has a dowel pin, which penetrates a through-hole of the mounted cutting insert and the bottom surface and can be fixed to the main tool body. A center longitudinal axis of the fixed dowel pin is arranged at an acute angle with respect to the bottom surface. The dowel pin contains a spherical segment for mounting on a bearing surface of the through-hole. The surface of the spherical segment is interrupted by a segment groove. | 04-05-2012 |
20120121345 | Cutting Tool and Insert Holder for Tangential Cutting Insert - A cutting tool has an insert holder for retaining a tangential cutting insert in an insert pocket. The insert pocket has a bottom surface, a rear surface and a base surface. The base surface has three abutment protuberances that extend from the base surface. Each base abutment protuberance has a respective base abutment surface. The three base abutment surfaces abut the cutting insert at three points to provide stable seating of the cutting insert in the insert pocket. | 05-17-2012 |
20120201616 | Cutting Tool and Cutting Insert Therefor - A cutting insert for mounting on an insert holder of a cutting tool. The cutting insert has a rear surface with two protuberances. The insert holder has a base surface with two recesses. Three abutment regions are formed on the side surfaces of the two protuberances and the two recesses when the cutting insert is releasably retained in the insert holder with a retaining screw. Two further abutment regions are formed between the two holder recess lower surfaces and the two insert protuberance upper surfaces. | 08-09-2012 |
20120282047 | Internal Groove Insert and Tool Holder Therefor - An internal groove insert includes a rectangular main body having a top surface, a lower surface, and first to fourth lateral surfaces; and first and second projections each projecting from the adjacent first and second lateral surfaces. The first projection has a first cutting edge at the side of the top surface of the main body, while the second projection has a second cutting edge at the side of the lower surface. The first and fourth lateral surfaces are inclined by an obtuse angle with respect to the top surface, while the second and third lateral surfaces are inclined by an acute angle with respect to the top surface. The central axis of the clamping hole is inclined to be parallel to the insert corner edge where the first and fourth lateral surfaces meet. | 11-08-2012 |
20130004252 | Clamp Auxiliary Member and Cutting Tool with the Clamp Auxiliary Member - A clamp auxiliary member is low in manufacturing costs has a simple structure, is applicable to a small-diameter tool, and facilitates replacement of a cutting insert in a cutting tool. The cutting insert is mounted to a tool body by means of the clamp auxiliary member, which is provided with an engagement portion for engaging a fastening screw. The clamp auxiliary member is formed in a ring shape and has one or more slits notching a part thereof. The clamp auxiliary member, and is flexibly deformed at the time the force is applied to an inner peripheral face upper portion thereof from the head portion of the fastening screw to expand the outer diameter. A cutting tool may be provided with such a clamp auxiliary member. | 01-03-2013 |
20130071194 | Cutting Insert, Cutting Body and Clamping Mechanism of a Cutting Tool Assembly for Chip Removal - A cutting insert ( | 03-21-2013 |
20130089381 | Cutting Tool for Grooving and Parting Operations - A cutting tool for grooving and parting operations, comprising a tool holder provided at one of its side faces with a pocket in the shape of a polygon confined by a base support surface and at least a first and second side support surfaces projecting from the base support surface. A cutting insert is releasably securable in said pocket, said cutting insert being formed with a blade part and a base part with lateral surfaces protruding from the blade part. The base part is received in said pocket, such that a first and a second lateral surface of the base part contact the first side support surface and the second side support surface of the pocket, respectively. The first lateral surface is provided with a recess to the inside of the cutting insert, and the first side support surface is provided with a complementary projection to the inside of the cutting insert. | 04-11-2013 |
20130156516 | Indexable Cutting Insert and Cutting Tool Therefor - A cutting tool assembly includes a cutting tool and an indexable cutting insert having an insert index axis. The cutting insert includes parallel insert first and second sides connected by an insert peripheral surface that extends peripherally around the cutting insert. At least one clamping hole opens out to one or both of the insert first and second sides, and at least a portion of the clamping hole is in a clamping region of the cutting insert. The insert peripheral surface includes cutting edges that are spaced-apart and extend from the insert first side to the insert second side. Along a width direction, which is perpendicular to the insert first and second sides, each of the cutting edges is wider than the cutting insert, at least at the cutting region of the cutting insert. | 06-20-2013 |
20130236255 | Cutting Tool and Cutting Insert Therefor - An indexable cutting insert has opposing rhombus-shaped upper and lower surfaces and a peripheral side surface therebetween with alternating obtuse and acute corner surfaces. A nose cutting edge is formed at the intersection of the upper surface with each of the two acute corner surfaces. The lower surface includes a base surface from which a central boss and exactly two engagement ridges protrude. Each engagement ridge extends from the central boss to intersect with its respective acute corner surface, and the base surface is divided into two base sub-surfaces. The insert may be clamped against a seating surface of a tool holder pocket solely by the engagement ridge located closest to the operative nose cutting edge making contact with a corresponding single engagement groove, and the two base sub-surfaces making contact with two coplanar raised support surfaces. | 09-12-2013 |
20130287506 | Cutting Insert for Thread Cutting and Cutting Tool - The invention relates to a thread cutting insert ( | 10-31-2013 |
20140050542 | Indexable Cutting Insert and Indexable Cutting Insert Holder - Indexable cutting insert with a plate-like main body having two parallel main surfaces and a peripheral surface connecting the two main surfaces and with a plurality of sections angled with respect to one another, wherein four cutting edges that extend transversely to the main surfaces are provided on the peripheral surface at the transition to sections, that are angled with respect to one another, of the peripheral surface, and wherein the position of the cutting edges defines a quadrilateral in the plan view of the main surfaces. Fixing with more favourable leverages and permanently more precise positioning of the cutting edges are provided by the quadrilateral having in each case two short and two long sides and cutting edges oriented in each case in opposite directions in the peripheral direction at adjacent corners and oriented in each case in the same direction at diagonally opposite corners of the quadrilateral. | 02-20-2014 |
20140199128 | Cutting Tool With Indexable Cutting Insert Having Non-Abutting Side Flanks - A cutting tool has an S-shaped cutting insert retained in a corresponding insert pocket. The insert pocket has a longitudinal main axis extending in a forward to rearward direction. The cutting insert has a longitudinal first axis and a lateral second axis, with two opposite cutting portions and a clamping portion therebetween, arranged along the first axis. The insert pocket includes a forward clamping portion with a forward abutment surface, and a rear clamping portion with first and second rear abutment surfaces. Two side flanks of the cutting insert extend longitudinally oppositely, with first and second clamping surfaces located adjacent each side flank. The first and second clamping surfaces adjacent one side flank abut the first and second rear abutment surfaces, respectively. The first clamping surface adjacent the other side flank abuts the forward abutment surface. Neither of the side flanks abuts the tool holder. | 07-17-2014 |
20140294525 | Rhombus-Shaped Indexable Cutting Insert and Cutting Tool - A rhombus-shaped cutting insert has opposing upper and lower surfaces, and a peripheral side surface extending therebetween having alternating obtuse and acute corner surfaces separated by four relief surfaces. The cutting insert is removably secured in an insert receiving pocket of a tool holder and indexable about a central axis. A nose cutting edge is formed at the intersection of one of the upper and lower surfaces with each of the two acute corner surfaces. One of the upper and lower surfaces has an engagement surface having a single primary and four secondary engagement elements. The primary and secondary engagement elements or portions thereof, exhibit minor symmetry about primary and secondary engagement planes. The primary engagement plane contains the central axis and intersects each nose cutting edge, and each secondary engagement plane does not contain the central axis and forms an acute engagement angle with the primary engagement plane. | 10-02-2014 |
20150078843 | Tool, Toolholder and Tool-Toolholder Unit for Milling Cutters and/or Shredders - A tool, a toolholder and a tool-toolholder unit obtained by coupling tool and toolholder is adapted to be fixed to a rotor of a shredder. The tool and the toolholder have a coupling mechanism that permit a quick and easy assembly or disassembly of the two elements and ensure, at the same time, a stable and safe fixing during use of the tool. | 03-19-2015 |
20150290717 | CUTTING TOOL AND CUTTING INSERT HAVING EXACTLY FOUR CUTTING PORTIONS THEREFOR - In a cutting tool having an indexable cutting insert with exactly four cutting portions, the cutting insert is removably securable to an insert holder by a fastener. The cutting insert has two opposing end surfaces with a peripheral side surface extending therebetween, and each cutting portion has a major cutting edge formed by the intersection of a rake surface and a relief surface. The peripheral side surface has first and second pairs of opposing side surfaces which include the four relief surfaces and the four rake surfaces, respectively. In an end view, four cutting points on the four major cutting edges define the transitions between the first and second pairs of opposing side surfaces, and a minimum first length dimension between the second pair of opposing side surfaces is less than six-tenths of a minimum second length dimension between two of the four cutting points. | 10-15-2015 |
20150328689 | Cutting tool insert and cutting tool insert holder - A cutting tool insert includes eight identical cutting edges. Each separate cutting edge has a first cutting edge portion and a second cutting edge portion. A corner angle between the first cutting edge portion and the second cutting edge portion is within a range of 75 to <90 degrees. The first cutting edge portion and the second cutting edge portion have substantially the same length to provide a substantially equal cutting depth. As seen along the center axis of the insert a first angle within a range of 14+/−9 degrees is formed between a first imaginary line extending from the center axis to a corner point at the first side surface and a second imaginary line extending from the center axis to an adjacent corner point at the second side surface. A cutting tool insert holder is also disclosed. | 11-19-2015 |
20160096228 | CUTTING INSERT WITH ASYMMETRIC CUTTING EDGE - A cutting insert for a cutting tool is described. The cutting inserts generally square-shaped with two opposing surfaces and four peripheral side surfaces. Cutting edges are formed at the intersection between the first and second surfaces and the peripheral side surfaces. Each cutting edge is divided into a first portion, a second portion and a radius blend. The first portion has a length, L | 04-07-2016 |
407104000 | With means projecting through aperture to force tool laterally against reaction surface | 15 |
20090035075 | CUTTING TOOL, TOOL BODY AND CUTTING INSERT THEREFOR - A cutting tool has a tool body and a cutting insert releasably retained in a pocket of the tool body. The cutting insert has first and second rear insert abutment surfaces and a third forward insert abutment surface and the pocket has first and second rear pocket abutment surfaces and a third forward pocket abutment surface. The first and second abutment surfaces are separated from the third abutment surface by a bore. The third forward pocket abutment surface can be either a socket recessed in a pocket base surface or a protrusion protruding from the base surface; and the third forward insert abutment surface can be correspondingly either a protrusion protruding from an inner surface of the insert or a socket recessed in the inner surface. | 02-05-2009 |
20090116912 | Tool Support for Tools on Machine Tools - A tool support for tools on machine tools has a tool support receptacle and a tool clamping insert arranged in the tool support receptacle and receiving a tool. At least one clamping screw secures the tool clamping insert in the tool support receptacle. The tool support receptacle has at least one continuous threaded bore having an axis that is positioned angularly relative to an axis of rotation of the tool. The at least one clamping screw when screwed into the at least one threaded bore engages in a tightened state a radial circumferential outer surface of the tool clamping insert. | 05-07-2009 |
20090136304 | CUTTING INSERT - A tangential cutting insert has three pairs of surfaces. A first pair has upper and lower surfaces, a second pair has front and rear surfaces, and a third pair has two side surfaces. The upper and lower surfaces and the side surfaces extend between the front and rear surfaces. A main cutting edge is formed at the intersection of the front surface with the upper surface. A front portion of the upper surface extends rearwardly from the main cutting edge and upwardly toward a central portion of the upper surface as seen in a side view of the cutting insert. The main cutting edge associated with the upper surface is curved and slopes downwardly toward each of the auxiliary cutting edges as seen in a front view of the cutting insert. | 05-28-2009 |
20090238651 | Adjustable center high tool holder head - An adjustable center high head tool holder for holding a cutting insert includes a flexible head, square or rectangle shank; a special button head screw for two ways forces against the bottom seat support surface and the angular side walls of an insert receiving pocket; the adjustable head having a slot for flexibility, a socket set screw to push up the tool holder head and other socket head screw to clamp down the tool holder head for adjusting the right center high of the tool holder head. | 09-24-2009 |
20100111622 | CUTTING ARRANGEMENT FOR CUTTING A WORKPIECE HAVING A TOOL HOLDER WHICH HOLDS A PLURALITY OF CUTTING TOOLS THEREIN - A cutting arrangement for cutting a workpiece having a tool holder which holds a plurality of cutting tools therein. The abstract of the disclosure is submitted herewith as required by 37 C.F.R. §1.72(b). As stated in 37 C.F.R. §1.72(b): A brief abstract of the technical disclosure in the specification must commence on a separate sheet, preferably following the claims, under the heading “Abstract of the Disclosure.” The purpose of the abstract is to enable the Patent and Trademark Office and the public generally to determine quickly from a cursory inspection the nature and gist of the technical disclosure. The abstract shall not be used for interpreting the scope of the claims. Therefore, any statements made relating to the abstract are not intended to limit the claims in any manner and should not be interpreted as limiting the claims in any manner. | 05-06-2010 |
20110274507 | Clamping Apparatus For Cutting Insert - A tool holder has an apparatus for clamping a cutting insert thereto. The tool holder has a cutting insert pocket and a mounting bore; a clamp lever including a clamp portion and a lever portion placed in the mounting bore; and a fixing screw. The fixing screw is fastened through a hole which extends downwardly from a side wall of the tool holder to the mounting bore. One end of the fixing screw further includes a pressure-applying surface substantially perpendicular to the rotational axis of the fixing screw, and the side surface of the lever portion of the clamp lever has an inclined surface which makes contact with the pressure-applying surface of the fixing screw. According to the clamping apparatus, the cutting insert can be firmly clamped to the tool holder. | 11-10-2011 |
20110286809 | Cutting Tool and Cutting Insert Therefor - A cutting tool has a cutting insert retained within an insert pocket of an insert holder by a retaining screw. Spaced apart first insert rear abutment surfaces abut spaced apart first pocket rear abutment surfaces, a second insert rear abutment surface abuts a second pocket rear abutment surface, and spaced apart insert lower abutment surfaces abut spaced apart pocket lower abutment surfaces. The cutting insert has a first dimension taken between extremities of the insert side surfaces, a second dimension taken between extremities of the insert upper and lower surfaces, and, a fourth dimension taken between the insert lower abutment surfaces and the insert upper surface. The size ratio between the fourth dimension and the second dimension is in the range of 0.2 to 1, and, preferably, in the range of 0.55 to 0.6. The size ratio between the first dimension and the second dimension is in the range of 1 to 2. | 11-24-2011 |
20120114435 | Assembly of Double-Sided Indexable Cutting Insert and Reinforcing Part - An assembly includes a double-sided indexable cutting insert and a reinforcing part. The assembly can be used to process metallic materials and the like. The polygonal, double-sided indexable cutting insert of the present invention has a plurality of convex portions at each corner portion. The level of the convex portions is lower than that of the corner cutting edges. Further, the reinforcing part of the present invention has flat portions that come into contact with the convex portions of the cutting insert at each corner portion. When the cutting insert and the reinforcing part are assembled together, the flat portions of the reinforcing part contact at least three convex portions of the cutting insert. | 05-10-2012 |
20130121776 | CUTTING INSERT, CLAMPING DEVICE FOR CUTTING INSERT, AND CUTTING TOOL - A cutting insert can be clamped by a lever-lock clamping device to a tool body in a more stable and reliable manner. A cutting insert clamped by the clamping device to an insert seat formed on a tool body, includes: an upper surface and a lower surface each having a substantially polygonal contour shape; a plurality of side surfaces extending between the upper surface and the lower surface; a through-hole penetrating through the upper surface and the lower surface; and a concave notch portion for receiving a clamping force that is partially formed at a peripheral edge portion of the through-hole on the upper surface side. | 05-16-2013 |
20140348601 | Cutting Insert Having A Rearwardly Offset Cutting Edge And Cutting Tool - A cutting insert includes opposing forward and rear surfaces and a peripheral surface extending therebetween. The peripheral surface includes opposing side surfaces and opposing upper and lower surfaces. The upper surface and the forward surface intersect to form a main cutting edge having an associated relief surface that extends therefrom in the forward surface. One of the side surfaces comprises an insert side abutment surface. The rear surface comprises an insert rear abutment surface. The lower surface comprises an insert lower abutment surface. The insert rear and insert lower abutment surfaces form an obtuse abutment angle with respect to each other. In a side view along a side axis, a relief surface line tangent to the relief surface intersects the insert lower abutment surface. | 11-27-2014 |
20150367422 | MOUNTING DEVICE FOR CUTTING TOOL, TOOL BODY AND CUTTING TOOL - A cutting insert mounting system adapted for a cutting tool in which, by using a tightening screw, a cutting insert is detachably mounted on an insert mounting seat. A central axis of a screw hole of the insert mounting seat is inclined with respect to a normal direction of a bottom wall surface of the insert mounting seat. When the cutting insert is placed on the insert mounting seat, on a virtual plane defined to expand the bottom wall surface, a central axis of the screw hole is shifted from the central axis of a through hole of the cutting insert to the side of one of two side wall surfaces of the insert mounting seat. On the virtual plane, an axis shift direction of the central axis of the screw hole and an inclination direction of the central axis of the screw hole are different. | 12-24-2015 |
20160016234 | Indexable Cutting Insert and Cutting Tool Therefor - A cutting tool assembly includes a cutting tool and an indexable cutting insert having an insert index axis. The cutting insert includes parallel insert first and second sides connected by an insert peripheral surface that extends peripherally around the cutting insert. At least one clamping hole opens out to one or both of the insert first and second sides, and at least a portion of the clamping hole is in a clamping region of the cutting insert. The insert peripheral surface includes cutting edges that are spaced-apart and extend from the insert first side to the insert second side. Along a width direction, which is perpendicular to the insert first and second sides, each of the cutting edges is wider than the cutting insert, at least at the cutting region of the cutting insert. | 01-21-2016 |
407105000 | Tilting clamp element and separate means to tilt same | 3 |
20090022553 | Clamping tool holder - A clamping tool holder includes a tool holder body and a clamp for clamping a cutting insert. The clamp causes the cutting insert to press against the bottom and the side walls of an insert-receiving pocket of the tool holder body. The tool holder body has an inclined surface sloping inward in a direction away from the insert-receiving pocket. The clamp has an inclined surface that acts as a ramp with the inclined surface of the tool holder body. A guide pin prevents the clamp from twisting during tightening or loosening of the clamp. When a clamp screw is tightened, a nub of the clamp engages only an inside rearward surface of a mounting bore of the insert along a line of contact and the top surface of the cutting insert. In addition, only a forward lower face of a head portion of the clamp screw engages a top surface of the clamp. | 01-22-2009 |
20120082522 | Clamping Device Having Independently Resilient Clamping Fingers for Clamping a Cutting Insert in a Tool Holder - A clamping device for removably securing a cutting insert in a tool holder used in turning and milling operations, where the clamping device comprises a clamping lever and an actuating member. The clamping lever includes a first and second limb extending from a central elbow, the first limb having a clamping end portion with two independently resilient clamping fingers separated by a clamping slot and the second limb being operatively connected to the actuating member. Each of the independently resilient clamping fingers has a resilience axis of rotation and an upper clamping zone in clamping contact with the cutting insert, where the resilience axes of rotation are generally parallel to the slot width of the clamping slot. | 04-05-2012 |
20130279997 | CUTTING TOOL AND CUTTING TOOL HOLDER HAVING LEVER PIN - A tool holder includes an insert pocket having a support surface with a pocket recess occupied by a lever pin, and a fastening member. A head portion of the lever pin has a lever head rear contact surface, located above the support surface, for pressing against a bore of a cutting insert in the insert pocket. The fastening member engages a threaded recess which extends from the pocket recess along a threaded recess axis. The fastening member includes a guiding prong, located within a blind hole in the front of the lever pin. A clamping contact surface of the fastening member is adjacent to a lever front contact surface of the lever pin. A first longitudinal distance, between the lever rear contact surface and the lever front contact surface, is smaller than a second longitudinal distance, between the lever front contact surface and a lever rear contact surface. | 10-24-2013 |