公开(公告)号：WO1997021906A1

公开(公告)日：1997-06-19

申请号：PCT/US1996017409

申请日：1996-11-01

Applicant: KENNAMETAL INC.

Inventor： KENNAMETAL INC. ,  RITCHEY, Cary, D. ,  MONTGOMERY, Robert, H., Jr.

IPC: E21C35/197

CPC classification number: E21C35/197 ,  E21C2035/191

Abstract: A tool sleeve rotation limitation system for reducing the rotation of a tool sleeve within a block bore of a support block, the tool sleeve having a sleeve engagement surface and the block bore having a block engagement surface. The tool sleeve rotation limitation system comprises a rotation limitation member located between the tool sleeve and the block bore so as to engage the tool engagement surface and the sleeve engagement surface and reduce rotation of the tool sleeve within the block bore, the rotation limitation member having a member perimeter which conforms to at least one of the sleeve engagement surface and the block engagement surface. Alternatively, the tool sleeve rotation limitation system comprises a resilient rotation limitation member located between the tool sleeve and the block bore so as to frictionally engage the tool sleeve and the block bore and reduce rotation of the tool sleeve within the block bore.

Abstract translation: 一种用于减小工具套筒在支撑块的块孔内的旋转的工具套筒旋转限制系统，工具套筒具有套筒接合表面，并且块孔具有块接合表面。 所述工具套筒旋转限制系统包括位于所述工具套筒和所述块孔之间的旋转限制构件，以便接合所述工具接合表面和所述套筒接合表面，并减少所述工具套筒在所述块孔内的旋转，所述旋转限制构件具有 与所述套筒接合表面和所述块接合表面中的至少一个相一致的构件周边。 或者，工具套筒旋转限制系统包括位于工具套筒和块孔之间的弹性旋转限制构件，以便摩擦地接合工具套筒和块孔，并减少工具套筒在块孔内的旋转。

公开(公告)号：WO1996033038A1

公开(公告)日：1996-10-24

申请号：PCT/US1996001649

申请日：1996-02-07

Applicant: KENNAMETAL INC.

Inventor： KENNAMETAL INC. ,  ERICKSON, Robert, A. ,  NEEDHAM, Greg, W.

IPC: B23B29/04

CPC classification number: B23B31/1071 ,  B23B29/046 ,  Y10T82/2589 ,  Y10T279/17752 ,  Y10T408/957 ,  Y10T409/309408

Abstract: A short-stroke clamping apparatus for detachably connecting a tool unit to a tool supporter is provided of the type having a canister member which includes apertures for admitting spherical locking elements, and a lock rod that is reciprocally movable a stroke distance along an axis and which has cam portions for moving the spherical locking elements through the canister apertures into engagement with the tool unit. In the clamping apparatus, the canister member apertures are elongated along the stroke axis. This allows the spherical locking elements to move axially along the cam portions of the lock rod as well as radially, such that locking engagement can be achieved with a shorter axial stroke movement of the lock rod. The aperture walls may also be angled to allow even greater axial movement of the locking elements, which not only further shortens the lock rod stroke, but can increase the gripping force that the clamping apparatus applies to the tool unit. The shorter lock rod stroke in turn advantageously shortens the tool envelope, and increases both the rigidity and life of the spring package that withdraws the lock rod. The aperture walls may also be angled to improve the force of locking engagement between the locking elements and the tool unit.

Abstract translation: 提供了一种用于将工具单元可拆卸地连接到工具支撑件的短行程夹紧装置，其具有包括用于容纳球形锁定元件的孔的罐构件和可沿着轴线往复移动行程距离的锁定杆， 具有用于将球形锁定元件通过罐孔移动以与工具单元接合的凸轮部分。 在夹紧装置中，罐构件孔沿着行程轴线是细长的。 这允许球形锁定元件沿着锁定杆的凸轮部分以及径向轴向移动，使得可以通过锁定杆的更短的轴向行程运动来实现锁定接合。 孔壁也可以成角度以允许锁定元件的更大的轴向移动，这不仅进一步缩短锁定杆行程，而且可以增加夹紧装置施加到工具单元上的夹持力。 较短的锁定杆行程又有利地缩短了工具外壳，并且增加了撤回锁定杆的弹簧组件的刚度和寿命。 孔壁也可以成角度以改善锁定元件和工具单元之间的锁定接合的力。

公开(公告)号：WO1996020056A1

公开(公告)日：1996-07-04

申请号：PCT/US1995013994

申请日：1995-10-30

Applicant: KENNAMETAL INC.

Inventor： KENNAMETAL INC. ,  CONLEY, Edward, V.

IPC: B22F07/06

CPC classification number: E21B10/5673 ,  B22F7/06 ,  B22F2005/001 ,  E21B10/56 ,  E21C35/183 ,  E21C2035/1813 ,  Y10T428/12021 ,  Y10T428/12028 ,  Y10T428/12056 ,  Y10T428/12097 ,  Y10T428/12104 ,  Y10T428/12139 ,  Y10T428/12146

Abstract: Methods for making, methods for using and articles comprising ferromagnetic cermets, preferably cemented carbides and more preferably tungsten carbide, having at least two regions exhibiting at least one property that differs are discussed. The multiple-region cermets are particularly useful in wear applications. The cermets are manufactured by juxtaposing and densifying at least two powder blends having different properties (e.g., differential carbide grain size or differential carbide chemistry or differential binder content or differential binder chemistry or differential magnetic saturation or any combination of the preceding). Preferably, a first region of the cermet comprises a first hard component having a prescribed binder content and a first magnetic saturation and a second region, juxtaposing or adjoining the first region, comprising a second binder content different than the binder content of the first region and a second magnetic saturation different than that of the first region. These articles have an extended useful life relative to the useful life of monolithic cermets in such applications as, for example, wear. The multiple region cermets of the present invention may be used with articles comprising tools for materials manipulation or removal including, for example, mining, construction, agricultural, and machining applications.

Abstract translation: 讨论了制造方法，使用方法和包含铁磁金属陶瓷，优选硬质合金，更优选碳化钨的制品，其具有至少两个具有不同的性质的区域。 多区域金属陶瓷在磨损应用中特别有用。 金属陶瓷是通过并列和致密化至少两种具有不同性质的粉末共混物（例如，微晶碳化物晶粒尺寸或微分碳化物化学或差示粘结剂含量或差示粘合剂化学或差示磁饱和度或前述任何组合）来制造的。 优选地，金属陶瓷的第一区域包括具有规定的粘合剂含量的第一硬质组分和第一磁饱和度以及与第一区域并置或相邻的第二区域，其包含不同于第一区域的粘合剂含量的第二粘合剂含量， 与第一区域不同的第二磁饱和度。 相对于诸如磨损等应用的单片金属陶瓷的使用寿命，这些制品具有延长的使用寿命。 本发明的多区域金属陶瓷可以与包括用于材料操作或去除的工具的物品一起使用，包括例如采矿，建筑，农业和机械应用。

公开(公告)号：WO1995030819A1

公开(公告)日：1995-11-16

申请号：PCT/US1995001456

申请日：1995-02-03

Applicant: KENNAMETAL INC.

Inventor： KENNAMETAL INC. ,  SHEIRER, Daniel, C.

IPC: E21B35/00

CPC classification number: E21B17/03 ,  E21B10/38 ,  E21B10/60 ,  E21B17/046

Abstract: A roof drill bit assembly comprising a roof drill bit (20) and a chuck (50). The roof bit contains a cavity (28) which opens at the rearward end thereof. Upon assembly the bit (20) and the chuck (50), the cavity (28) receives the axially forward end of the chuck. A sealing member is between the roof drill bit (20) and the chuck (50) so as to provide a fluid-tight connection between the chuck (50) and the roof bit (20).

Abstract translation: 一种屋顶钻头组件，包括屋顶钻头（20）和卡盘（50）。 屋顶钻头包括在其后端开口的空腔（28）。 在组装钻头（20）和卡盘（50）时，空腔（28）容纳卡盘的轴向前端。 密封构件位于屋顶钻头（20）和卡盘（50）之间，以便在卡盘（50）和屋顶钻头（20）之间提供流体密封的连接。

公开(公告)号：WO1995030066A1

公开(公告)日：1995-11-09

申请号：PCT/US1995005401

申请日：1995-05-02

Applicant: KENNAMETAL INC. ,  KENNASYSTEM SOUTH AFRICA (PROPRIETARY) LIMITED ,  KLOPPERS, Stephanus, Frederick ,  HOLTSHAUSEN, Richard, George ,  WRIGHT, Noel, G.

Inventor： KENNAMETAL INC. ,  KENNASYSTEM SOUTH AFRICA (PROPRIETARY) LIMITED

IPC: E21B10/42

CPC classification number: E21B10/42 ,  E21B10/54 ,  E21B10/58 ,  E21B10/62

Abstract: A rotary borer has a body (10) mountable on a drill steel and one or more cutting tips (30) at a front of the body (10). Each tip (30) is tapered and is frictionally received in a corresponding tapered slot (22) in the body (10). The slot (22) has a trailing, rigid anvil surface (16), which extends almost to the extremity of the tip (30) to support the tip (30) and to locate it laterally, and a leading, resilient retaining surface (20) well shy of the extremity of the tip (30) to expose a portion of the tip. The tip (30) is readily replaceable. Release of the tip can be effected by heat or by means of taper drift (38) for which a transverse hole (37) is provided proximate a bottom of the slot (20).

Abstract translation: 旋转钻具具有安装在钻钢上的主体（10）和在主体（10）的前部的一个或多个切割尖端（30）。 每个尖端（30）是锥形的并被摩擦地容纳在主体（10）中的相应的锥形槽（22）中。 狭槽（22）具有后部刚性砧座表面（16），其几乎延伸到尖端（30）的末端以支撑尖端（30）并将其定位在其侧面，并且具有引导的弹性保持表面（20 ）很好地防止尖端（30）的末端暴露尖端的一部分。 尖端（30）易于更换。 尖端的释放可以通过加热或通过锥形漂移（38）来实现，其中在孔（20）的底部附近提供横向孔（37）。

公开(公告)号：WO1995027581A1

公开(公告)日：1995-10-19

申请号：PCT/US1995003260

申请日：1995-03-15

Applicant: KENNAMETAL INC. ,  KRUPP WIDIA GMBH

Inventor： KENNAMETAL INC. ,  KRUPP WIDIA GMBH ,  ERICKSON, Robert, A. ,  Von HAAS, Ranier

IPC: B23B29/04

CPC classification number: B23B29/046 ,  Y10T82/2589 ,  Y10T408/95 ,  Y10T409/30952

Abstract: An apparatus for releasably holding a tubular toolholder shank (45) by axially reciprocating a lock rod (95) between a locked and unlocked position. The lock rod (95) is reciprocated using a rotatable cam (150). The cam compresses a spring (200), thereby urging the lock rod (95) in the locked position and positively displacing the lock rod to the unlocked position.

Abstract translation: 一种用于通过使锁定杆（95）在锁定和解锁位置之间轴向往复运动来可释放地保持管状刀柄（45）的装置。 锁定杆（95）使用可旋转凸轮（150）往复运动。 凸轮压缩弹簧（200），从而将锁定杆（95）推到锁定位置并且将锁定杆主动地移动到解锁位置。

公开(公告)号：WO1995027580A1

公开(公告)日：1995-10-19

申请号：PCT/US1995003184

申请日：1995-03-15

Applicant: KENNAMETAL INC.

Inventor： KENNAMETAL INC. ,  ERICKSON, Robert, A.

IPC: B23B29/04

CPC classification number: B23B29/046 ,  B23B31/263 ,  Y10T82/2589 ,  Y10T409/30952

Abstract: An apparatus for releasably holding a tubular toolholder shank (45) by axially reciprocating a lock rod (95) between a locked and unlocked position. The lock rod (95) is reciprocated using a rotatable cam (150). The rotatable cam (150) activates a preloaded spring (200) to generate a force securing the lock rod (95) in the locked position. The rotatable cam (150) includes a non-cylindrical cam post (160) to minimize a kickback force that may be caused by the preloaded spring (200) on the cam post (160) as the lock rod (95) is moved from the locked to the unlocked position.

Abstract translation: 一种用于通过使锁定杆（95）在锁定和解锁位置之间轴向往复运动来可释放地保持管状刀柄（45）的装置。 锁定杆（95）使用可旋转凸轮（150）往复运动。 可旋转凸轮（150）启动预加载的弹簧（200）以产生将锁定杆（95）固定在锁定位置的力。 可旋转凸轮（150）包括非圆柱形凸轮柱（160），以便当锁定杆（95）从所述凸轮柱（160）移动时，使由所述凸轮柱（160）上的预加载弹簧（200）引起的反冲力最小化 锁定到未锁定位置。

公开(公告)号：WO1995026846A1

公开(公告)日：1995-10-12

申请号：PCT/US1995003258

申请日：1995-03-15

Applicant: KENNAMETAL INC. ,  ZITZLAFF, Wolfgang ,  CERNY, Max

Inventor： KENNAMETAL INC.

IPC: B23B27/16

CPC classification number: B23B27/16

Abstract: A cutting tool assembly with a clamping mechanism for releasably clamping a tool bit (18) on a tool holder (10) is disclosed. The tool holder (10) defines an elongated planar seating surface (12) with a socket (14) on its forward end and a threaded bore (20) on its rear end. A further threaded bore (22) is provided in the seating surface intermediate the forward and rearward ends. A conical tool bit (18) forms a circular cutting edge (52) and has a shank (16) adapted to be received in the socket (14). An elongated bar-shaped clamping member (32) has one end engaging in a circumferential groove (28) of the tool bit (18). The opposite end of the clamping member (32) has an arcuate concave surface portion (32b) for abutment with the conical surface on a tapered head (34) of an adjustment screw (36) engaged in the threaded bore (20) of the seating surface (12). A fastening screw (40) extends through an elongated hole (38) of the clamping member (32) and is engaged in the corresponding threaded bore (22) in the seating surface (12).

Abstract translation: 公开了一种具有用于将工具刀头（18）可释放地夹紧在刀架（10）上的夹紧机构的切削刀具组件。 工具架（10）限定了一个细长的平面座面（12），在其前端具有一个插座（14），在其后端具有一个螺纹孔（20）。 另外的螺纹孔（22）设置在就座表面中间的前端和后端。 锥形工具钻头（18）形成圆形切削刃（52）并且具有适于容纳在插座（14）中的柄部（16）。 细长的杆状夹紧构件（32）具有与刀头（18）的周向槽（28）接合的一端。 夹紧构件（32）的相对端具有弓形凹面部分（32b），用于与锥形表面邻接，该锥形表面位于调节螺钉（36）的锥形头部（34）上，调节螺钉（36）接合在座位的螺纹孔（20）中 表面（12）。 紧固螺钉（40）延伸穿过夹紧构件（32）的细长孔（38）并且接合在就座表面（12）中的对应的螺纹孔（22）中。

公开(公告)号：WO1995016530A1

公开(公告)日：1995-06-22

申请号：PCT/US1994013035

申请日：1994-11-14

Applicant: KENNAMETAL INC.

Inventor： KENNAMETAL INC. ,  LOSCH, William, P. ,  BEACH, Wayne, H. ,  ROWLETT, Don, C.

IPC: B23B27/20

CPC classification number: E21B10/567 ,  B23B27/145 ,  B23B2222/28 ,  B23B2226/315 ,  E21B10/50 ,  E21B10/54 ,  E21B10/56 ,  E21C35/183

Abstract: A polycrystalline diamond composite cutting insert (46) for attachment to a tool so that the cutting insert engages a work material when the tool is in operation. The cutting insert comprises a substrate (48) and an polycrystalline diamond composite layer on the substrate. The polycrystalline diamond composite layer has a transition region (50), bonded to the substrate, comprising a composite polycrystalline material in which the cemented carbide pieces, which comprise between about 40 volume percent and about 80 volume percent, and the diamond crystals are interspersed in one another. The polycrystalline diamond composite layer further includes an outer region (52), bonded to the transition region, comprising a composite polycrystalline material in which the cemented carbide pieces, which comprise between about 5 volume percent and about 45 volume percent, and the diamond crystals are interspersed in one another.

Abstract translation: 一种用于附接到工具的多晶金刚石复合切削刀片（46），使得当刀具运行时切削刀片与工件材料接合。 切削刀片包括衬底（48）和在衬底上的多晶金刚石复合层。 多晶金刚石复合层具有结合到基底的过渡区域（50），其包括复合多晶材料，其中包含约40体积％至约80体积％的硬质合金片和金刚石晶体分散在 另一个。 多晶金刚石复合层还包括结合到过渡区域的外部区域（52），其包括复合多晶材料，其中包含约5体积％至约45体积％的硬质合金片和金刚石晶体 相互散布。

公开(公告)号：WO1994016023A1

公开(公告)日：1994-07-21

申请号：PCT/US1993011903

申请日：1993-12-07

Applicant: KENNAMETAL INC.

Inventor： KENNAMETAL INC. ,  MEHROTRA, Pankaj, K. ,  NIXON, Robert, D.

IPC: C09C01/68

CPC classification number: C04B35/593

Abstract: Provided is a silicon nitride based ceramic which is particularly useful for use as a cutting tool (10) in the high speed chip forming machining of metallic materials. The ceramic is preferably composed of at least 85 volume percent (v/o) beta silicon nitride phase and less than about 5 v/o intergranular phase. The ceramic has greater than 0.2 weight percent (w/o) magnesia, greater than 0.2 w/o yttria, where the sum of magnesia and yttria is less than 5 w/o. The ceramic has less than 0.2 v/o porosity. The tool (10) has a rake face (30) joined to flank faces (50) by cutting edges (70).

Abstract translation: 提供一种氮化硅基陶瓷，其特别适用于在金属材料的高速切屑成形加工中用作切削工具（10）。 陶瓷优选由至少85体积％（v / o）β氮化硅相和小于约5v / o的晶间相组成。 陶瓷具有大于0.2重量％（w / o）的氧化镁，大于0.2w / o氧化钇，其中氧化镁和氧化钇的总和小于5w / o。 陶瓷的孔隙率小于0.2v / o。 工具（10）具有通过切削刃（70）连接到侧面（50）的前刀面（30）。