CN1986128B - 用于去屑加工的刀具 - Google Patents
用于去屑加工的刀具 Download PDFInfo
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23C—MILLING
- B23C5/00—Milling-cutters
- B23C5/02—Milling-cutters characterised by the shape of the cutter
- B23C5/06—Face-milling cutters, i.e. having only or primarily a substantially flat cutting surface
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23C—MILLING
- B23C5/00—Milling-cutters
- B23C5/16—Milling-cutters characterised by physical features other than shape
- B23C5/20—Milling-cutters characterised by physical features other than shape with removable cutter bits or teeth or cutting inserts
- B23C5/22—Securing arrangements for bits or teeth or cutting inserts
- B23C5/2204—Securing arrangements for bits or teeth or cutting inserts with cutting inserts clamped against the walls of the recess in the cutter body by a clamping member acting upon the wall of a hole in the insert
- B23C5/2226—Securing arrangements for bits or teeth or cutting inserts with cutting inserts clamped against the walls of the recess in the cutter body by a clamping member acting upon the wall of a hole in the insert for plate-like cutting inserts fitted on an intermediate carrier, e.g. shank fixed in the cutter body
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B27/00—Tools for turning or boring machines; Tools of a similar kind in general; Accessories therefor
- B23B27/14—Cutting tools of which the bits or tips or cutting inserts are of special material
- B23B27/16—Cutting tools of which the bits or tips or cutting inserts are of special material with exchangeable cutting bits or cutting inserts, e.g. able to be clamped
- B23B27/1614—Cutting tools of which the bits or tips or cutting inserts are of special material with exchangeable cutting bits or cutting inserts, e.g. able to be clamped with plate-like cutting inserts of special shape clamped against the walls of the recess in the shank by a clamping member acting upon the wall of a hole in the insert
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23C—MILLING
- B23C5/00—Milling-cutters
- B23C5/16—Milling-cutters characterised by physical features other than shape
- B23C5/20—Milling-cutters characterised by physical features other than shape with removable cutter bits or teeth or cutting inserts
- B23C5/22—Securing arrangements for bits or teeth or cutting inserts
- B23C5/2204—Securing arrangements for bits or teeth or cutting inserts with cutting inserts clamped against the walls of the recess in the cutter body by a clamping member acting upon the wall of a hole in the insert
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23C—MILLING
- B23C5/00—Milling-cutters
- B23C5/16—Milling-cutters characterised by physical features other than shape
- B23C5/20—Milling-cutters characterised by physical features other than shape with removable cutter bits or teeth or cutting inserts
- B23C5/22—Securing arrangements for bits or teeth or cutting inserts
- B23C5/2239—Securing arrangements for bits or teeth or cutting inserts with cutting inserts clamped by a clamping member acting almost perpendicular on the cutting face
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23C—MILLING
- B23C5/00—Milling-cutters
- B23C5/16—Milling-cutters characterised by physical features other than shape
- B23C5/20—Milling-cutters characterised by physical features other than shape with removable cutter bits or teeth or cutting inserts
- B23C5/22—Securing arrangements for bits or teeth or cutting inserts
- B23C5/2265—Securing arrangements for bits or teeth or cutting inserts by means of a wedge
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23C—MILLING
- B23C5/00—Milling-cutters
- B23C5/16—Milling-cutters characterised by physical features other than shape
- B23C5/20—Milling-cutters characterised by physical features other than shape with removable cutter bits or teeth or cutting inserts
- B23C5/22—Securing arrangements for bits or teeth or cutting inserts
- B23C5/2298—Securing arrangements for bits or teeth or cutting inserts secured by resilient/flexible means
- B23C5/2306—Securing arrangements for bits or teeth or cutting inserts secured by resilient/flexible means for plate-like cutting inserts fitted on an intermediate carrier, e.g. shank fixed in the cutter body
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23C—MILLING
- B23C2200/00—Details of milling cutting inserts
- B23C2200/04—Overall shape
- B23C2200/045—Round
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23C—MILLING
- B23C2200/00—Details of milling cutting inserts
- B23C2200/12—Side or flank surfaces
- B23C2200/125—Side or flank surfaces discontinuous
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23C—MILLING
- B23C2200/00—Details of milling cutting inserts
- B23C2200/16—Supporting or bottom surfaces
- B23C2200/168—Supporting or bottom surfaces with features related to indexing
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23C—MILLING
- B23C2210/00—Details of milling cutters
- B23C2210/16—Fixation of inserts or cutting bits in the tool
- B23C2210/168—Seats for cutting inserts, supports for replacable cutting bits
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T407/00—Cutters, for shaping
- Y10T407/19—Rotary cutting tool
- Y10T407/1906—Rotary cutting tool including holder [i.e., head] having seat for inserted tool
- Y10T407/1908—Face or end mill
- Y10T407/191—Plural simultaneously usable separable tools in common seat or common clamp actuator for plural simultaneously usable tools
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T407/00—Cutters, for shaping
- Y10T407/22—Cutters, for shaping including holder having seat for inserted tool
- Y10T407/2202—Plural spaced seats and common holder
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T407/00—Cutters, for shaping
- Y10T407/22—Cutters, for shaping including holder having seat for inserted tool
- Y10T407/2272—Cutters, for shaping including holder having seat for inserted tool with separate means to fasten tool to holder
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T407/00—Cutters, for shaping
- Y10T407/23—Cutters, for shaping including tool having plural alternatively usable cutting edges
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Abstract
在第一方面,本发明涉及一种用于去屑加工的刀具,该刀具包括基体(1)和可更换的切削刀片(5),该切削刀片可拆卸地安装在形成于基体中的刀座(4)上,该刀座(4)由底面(10)和至少一个侧支撑面(11)限定,所述切削刀片包括非圆的接合表面(22),该接合表面(22)被压靠在形成于一分离的锁定元件(24)上的类似的非圆的肩部表面(29)上,所述锁定元件(24)***形成于基体中的空间(36)内,该空间(36)朝刀座(4)开放并且定位在刀座(4)的底面(10)和其侧支撑面之间,以便锁定元件旋转地固定切削刀片的底部,同时切削刀片的顶部被支撑在侧支撑面上。借助于肩部表面(29)形成于分离的锁定元件上的事实,有利于刀具的制作,特别是当切削刀片数目多、体积小并且形状为圆时。另一方面,本发明涉及该刀具的基体和锁定元件。
Description
发明领域
本发明涉及一种用于去屑加工的刀具,这种类型的刀具包括基体和可更换的切削刀片,该切削刀片具有顶侧,底侧和在顶侧和底侧之间延伸的余隙面,并且该切削刀片可拆卸地安装在形成于基体中的刀座上,该刀座由底面和至少一个侧支撑面限定,所述切削刀片包括非圆的接合表面,该接合表面被压靠在类似的非圆的肩部表面上,以可旋转地固定该切削刀片。
背景技术
本发明的出发点在于与铣刀有关的技术问题,更确切地,是那种配备有多个小而圆的切削刀片的铣刀。这种切削刀片通常为滑轮形状并且在顶侧和周围的余隙面之间具有圆环形切削刃,同样还具有多个位于底侧附近的非圆的接合表面。通常商业上可用的这种类型的切削刀片(见例如SANDVIK COROMANT公司2006年主要目录的D62页,www.coromant.sandvik.com)形成有六个平面的、同样的且等距的接合表面,它们一起给予该切削刀片的底部一六边形的螺母形的形状,通过将该底部接合在切削刀片底部的、与之相配合的六边形埋头孔上,该切削刀片被可旋转地固定,即被保持在适当的位置而不转动。同时,被认为比使切削刀片转动的力更大的切削力由刀座以及一个或多个可旋转地对称的拱形侧支撑面承载,切削刀片的可旋转的对称的环形余隙面被压靠在该侧支撑面上。
只要切削刀片较大并且数目较少,则每个刀座底部的多边形埋头孔的制作没有太大的困难,即借助于传统的切削刀具通过铣和/或钻的方式制成。然而,如果铣刀上装配的是小切削刀片,并且特别地,是很多小切削刀片时,形成埋头孔的难度便出现了。在这种情况下,实际情况是多个(例如六个)接合在一起形成所述埋头孔的平坦的肩部表面将变得格外地小,以致于现有的切削刀具不能用于产生合适的表面以及在其之间形成必需的间隙。对是否可使用直径降至1mm的特殊的带柄端铣刀铣削所述表面的研究表明,这种选择是不现实的。当刀座为多个时,即彼此相邻近地定位时,切削刀具的接触可能性将被进一步降低。
现有技术的进一步描述
US 2003/0059262A1公开了一种呈铣刀形式的切削刀具,它包括圆形切削刀片,该切削刀片设计有围绕其下部的多个V形切口,这些切口与弹簧加载柱塞配合,以便限制和防止切削刀片转动。更具体地说,柱塞和切口形成了棘爪机构,在用于紧固切削刀片的螺钉被部分松开以便允许对切削刀片进行转位时,提供某种抵抗转动的作用,并且棘爪机构在柱塞经过两个相邻切口之间的***时发出咔嗒声。在实践中,当刀片受到中等切削力以转动刀片时,这种机构无法牢固将刀片固定在精确位置。而且,围绕刀片上部的余隙面未受到支撑,从而突出的底部销承受了作用在刀片上的所有轴向和径向力。
发明内容
本发明旨在克服上述难题。因此,本发明的主要目的是提供一种刀具,该刀具可由小且多的切削刀片构成,这些切削刀片通过使用简单而又廉价的装置而可被旋转地固定。另一个目的是提高切削刀片的旋转固定,从而使切削刀片无意中转动的风险被最小化。再一个目的是提供一种刀具,通过这种刀具可将昂贵基体的损坏风险,例如磨损损害,降到最低。
根据本发明,至少主要目的是通过权利要求1的特征部分中定义的特征而获得的。根据本发明的刀具的优选实施例被进一步限定在从属权利要求2-9中。
发明概述
本发明基于形成平面的肩部表面的想法,该肩部表面将以锁定板而不是埋头孔与切削刀片的平面的接合表面相配合,其中所述埋头孔必须通过在基体上进行去屑加工实现。通过简单的方式,所述锁定板可通过与基体的加工相分离的加工操作制造,并且接着被安装在基体内的一容易形成空间上。
附图说明
在下述附图中:
图1是以铣刀形式呈现的刀具的透视分解图,其中该铣刀包括可旋转的基体,切削刀片和锁定板,所示的锁定板与基体是分离的;
图2是放大的局部透视图,示出了基体上的单独的刀座;
图3是类似的透视图,示出了根据本发明而实施并被安装在邻近刀座的空间内的锁定板;
图4是该锁定板以及用于该锁定板的管状销的放大透视分解图;
图5是从与圆形切削刀片相配合的锁定板下方看到的透视图;
图6是从锁定板和刀座下方看到的平面视图。
具体实施方式
下文中,将结合以铣刀为形式的可旋转切削刀具描述本发明,其中该铣刀用于金属的去屑加工并且包括多个切削刀片和刀座。然而,事实上并不排出本发明应用于其它切削刀具,例如分别只具有一个或很少切削刀片和刀座的固定的车刀。
在现有方式下,如图1所示的铣刀包括可绕中心轴线C旋转的基体1,并且该基体1一方面包括具有旋转对称的、在本例中为圆柱形形状的包络面2,另一方面包括平面的环形的前端表面3。在包络面2和前端表面3之间的过渡部中形成有多个***分离开的刀座4,这些刀座4用于接纳切削刀片5,其中在图1中只示出了一个切削刀片5。在每个刀座4的向后的方向上延伸有容屑槽6,在本例中,容屑槽6由平面的壳状表面7以及至少一个凹入的拱形表面8限定。不同的容屑槽和刀座被若干隔墙或***9分隔开。在操作中,基体沿箭头A的方向旋转。从该旋转方向看去,壳表面7形成每个隔墙9的前侧,而表面8形成相邻的隔墙的后侧。
每个刀座都是相对于壳表面7的埋头孔并且包括平面的底面10以及两个***分隔开的侧支撑面11,其中切削刀片的环形的旋转对称的余隙面可压靠在该侧支撑面11上。
在图1中举例说明的实施例中,切削刀片5通过螺钉13固定,该螺钉13包括头部14和具有阳螺纹的杆部15,杆部15可被旋拧入在刀片的底面10上开放的孔16的阴螺纹中。螺钉的杆部穿过切削刀片的中心孔17。切削刀片5和孔16的中心轴线由C1指示。
参照图5,应当指出的是,切削刀片5具有在顶侧19和底侧20之间延伸的旋转对称的余隙面18,顶侧和余隙面之间的过渡部形成一圆环形的切削刃21。该余隙面18是圆锥形的并且沿向下的方向会聚。在切削刀片的底部形成有多个平面接合表面22,这些接合表面22合在一起形成一多边形结构。特别地,在本例中,切削刀片包括6个这种接合表面22,从而赋予切削刀片的底部类似于螺母的形状。每个接合表面22都可与切削刀片的中心轴线C1平行,但在该实例中相对于中心轴线C1倾斜成适量的角度(大约3°),更确切地说是这样一种方式,即接合表面的下边界线被定位径向上比上边界线更靠近中心轴线C1。在每个接合表面22的上方有月牙形的倒角面23。
至现在为止,所描述的包括在该刀具中的部件实质上与所有已公知的刀具中的相同。然而,在已知的铣刀中,每个刀片通过刀座底面10上的六边形或多边形形状的埋头孔被可旋转地固定在其所属的刀座4上。正如最初提到的,只要刀片够大(>16mm)和/或数目少(例如,4个),这种埋头孔可毫无困难地实现,更确切地说,通过在适当的基体1上加工即可实现。但是,在所示的实例中,切削刀片较小(<16mm)并且数目较多(7个)。这意味着,一方面切削刀片的接合表面22需要刀座上很小的肩部表面,并且另一方面容屑槽6彼此定位得很近,且隔墙9的凹形限定表面8闯入每个刀座上方的空间。
根据本发明,通过锁定元件24可克服上述难题,其中该锁定元件24被制成分离的附件的形式并且具有板的形状,该板具有有利地为平面的并且相互平行的顶侧和底侧25,26。在实例中,锁定元件24是月牙形,从而其轮廓形状由一拱形后边缘表面27以及两个直的或平面的边缘表面28确定,其中该边缘表面28朝向形成一凹槽的公共区域延伸,所述凹槽由多个平面的,即非圆的肩部表面29限定出。具体地,该凹槽由三个肩部表面29限定,这些肩部表面彼此间形成与切削刀片的接合表面22彼此间形成的角度相同的角度。在所讨论的实例中,当切削刀片的接合表面22的数目为6个时,每个肩部表面29与每个相邻的肩部表面形成120°的角。每个独立的肩部表面29被限定于上下边界线30,31和两个端部边界线32之间。有利地,肩部表面29是平面的,这意味着不仅端部边界线32之间的假想线是直的,而且上下边界线30,31之间的假想线也是直的。所述表面可沿与板的顶侧25垂直或成钝角的方向延伸,例如,具有与接合表面22相对于切削刀片的中心轴线之间的倾斜角相同的角度(3°)。然而,肩部表面29不需要需要为完全的平面。从而,例如它可以在端部边界线32之间的延伸部分是直的,但在上下边界线30,31之间是拱形的,确切地说,从其延伸方向看为凸拱形。不同的肩部表面29之间形成有圆角过渡部33。应当指出,至少内肩部表面29应当比每个切削刀片的接合表面22长。另一方面,从内肩部表面分开的两个外肩部表面可以比接合表面22短。上面形成有侧肩部表面的两个锥形凸出41形成一叉形的结构,该叉形结构限定出向外打开的颚部,切削刀片的底部可从侧面***该颚部中。
在限定于最长的直线边缘表面28和拱形边缘表面27之间的锁定板的锥形后部上形成有一通孔34,用于固定元件35,在本例中,所述固定元件35是管状销。
现在返回参照附图1-3,这些附图描绘了如何在基体1中形成了整体由36指示的空间,以容纳锁定板24。所述空间是由两个平面的上下表面37,38以及由内边缘表面39限定的间隙或狭缝,其中所述内边缘表面39是与锁定板的后边缘表面27类似的拱形。具体地,空隙36形成于两个相邻的容屑槽6之间的每个隔墙9中,并且以这样的方式定位,即它在切削刀片的侧支撑面11和刀片的底面10之间开放。有利地,底面10和该狭缝36的下表面38共面。换言之,在本例中,表面10,38是同一个平面的一部分。因此,狭缝36可简单快速地通过适当的去屑加工而形成,例如借助于盘形铣刀的铣削形成。这可在与产生表面10的操作相同的操作中实现。就此而言,为了完整性,应当指出的是,基体1的材料通常比切削刀片5的材料软。从而,基体可由钢、铝或类似材料制成,而切削刀片则由硬质合金或其它坚硬并且耐磨的材料制成。这意味着可通过去屑加工制造出合适的基体。
相应地,两个边缘表面27,29具有一种并且相同的拱形形状。它可以是圆的也可以是非圆的。然而,在非上述任一种情况下,处于固定状态的锁定板可成角度地绕切削刀片或螺纹孔16的中心轴线C1放置,这是因为即使拱形形状是圆的,锁定板也由一圆确定,该圆的中心远离中心轴线C1。
在每个隔墙9上(通过钻)都形成有孔40,在本例中该孔40是通孔,从而该孔40在隔墙的前侧(表面7)打开以及其后侧8开放(见图1)。当锁定板被置于空隙36中时,管状销35被施加于孔40中以固定该锁定板。这里应当指出的是,管状销35的主要目的是将锁定板保持在空隙中,而非承受任何实质上的切削力。从而,相当大的切削力都由切削刀片的底面10和侧支撑面11承受,而锁定板24只抵抗适当的、意图将切削刀片相对于中心轴线C1旋转的力。这意味着,一方面,限定于肩部表面39之间并且目的在于容纳类似螺母的切削刀片底部的颚部相对于切削刀片底部可具有特定的超标的尺寸(即,每个活动接合表面22不需要紧邻着抵靠相应的肩部表面29),另一方面,管状销35和锁定板的孔34之间的配合不需要很精确。从而,孔34的直径可稍稍大于管状销35的外径。另一方面,管状销35应当相对于孔40具有一特定的适当的尺寸超标,以通过压配合***该孔中固定。然而,该管状销被紧紧地压入孔40,从而不需要防止该管状销从该孔中脱落。从而,如果锁定板需要被从空隙36中拆除时,通过适当的刀具,管状销可被从所述孔中敲出或压出。
本发明的优点
为了切削刀片的旋转固定的需要,通过在独立的锁定板上形成平面的或非圆的肩部表面,消除了所讨论的用以提供这些表面的难题。从而,独立锁定板可以快速和有效率的方式成批生产,同时基体的加工被极大地简化。从而所需要的用于接纳锁定板的空间可通过在基体上最简单的铣削加工出一狭缝而提供。在这种情况下,还产生了切削刀片的平面底面。另一个优点是切削刀片和基体之间的所有相配合的接触表面可被最优化地做大。从而,锁定板的肩部表面可具有与切削刀片的接合表面相同的高度,包括切削刀片的接合表面,切削刀片整体可靠在刀座的底面上(这是前面所述当切削刀片小且多时不能实现的)。此外,刀座的旋转固定功能与切削力承载任务分离,其中切削力完全地由刀座的底面和侧支撑面承载,而旋转固定功能由锁定板实现。因为所述锁定板相对于基体可具有特定的移动性,因而肩部尺寸精度的要求被显著地降低。额外的优点是锁定板可作为一***件,从而如果肩部表面由于例如磨损或过载而被损坏时,可容易地进行更换。
本发明可能的修改
本发明并不仅限于上文中描述且在附图中呈现的实施例。虽然本发明被具体化为铣刀形式的可旋转的刀具,但本发明也可应用于去屑加工的其它刀具,例如,车刀。本发明既不限于圆形的切削刀片,而是具有需要通过装置旋转固定的其它基体形状的刀片,所述装置不用于承载切削力而只承载试图转动切削刀片的力。此外,锁定板的旋转地固定肩部表面可作用在接合表面上,它们并未紧靠着切削刀片内侧定位。此外,锁定板的旋转固定肩部表面不一定必需是三个。从而,肩部表面的数目可从单独一个一直变化到与切削刀片的接合表面数相对应的数目。如果例如所述实例中的切削刀片包括六个接合表面,则相应地锁定板可具有相同数目的肩部表面,这些肩部表面被形成于锁定板的环形部分的内侧。在这种情况下,也可行的是,将锁定板制作为具有较薄的底部,切削刀片的底侧可抵靠在该底部上。对于本领域的技术人员来说,应当很明显的是,锁定板可用除管状销之外的其它元件固定,例如,螺钉,销钉或类似元件。就此而言,应当指出的是,锁定板不一定必须具有用于固定元件的通孔。从而,除孔之外,还可采用在边缘表面侧面地开放的凹槽或空腔。尽管所示实例中的切削刀片是通过螺钉固定的,但也可通过其它方式固定该切削刀片,例如,通过卡钳、楔或类似装置。总之,应当强调的是,概念“非圆”应当从广义上理解,并且因此应当被认为不仅包括平面的表面,而且包括可防止切削刀片旋转的任意非旋转对称的表面。
Claims (9)
1.用于去屑加工的刀具,包括基体(1)和可更换的切削刀片(5),该切削刀片具有顶侧(19),底侧(20)和在顶侧和底侧之间延伸的余隙面(18),并且该切削刀片可拆卸地安装在形成于基体内的刀座(4)中,并且该刀座(4)由底面(10)和至少一个侧支撑面(11)限定,所述切削刀片是圆的并包括非圆的接合表面(22),该非圆接合表面(22)被压靠在类似的非圆的肩部表面(29)上,以旋转地固定该切削刀片,该切削刀片(5)的余隙面(18)的上部由侧支撑面(11)支撑,其特征在于,切削刀片(5)的非圆接合表面(22)所压靠着的非圆的肩部表面(29)被包括于独立的锁定板(24)的前部中,该锁定板(24)的后部被***并固定于狭缝(36)中,该狭缝(36)朝向刀座(4)开放并且定位在侧支撑面(11)和刀座(4)的底面(10)之间,以便锁定板(24)旋转地固定切削刀片的下部。
2.根据权利要求1所述的刀具,其特征在于,所述锁定板借助于***位于锁定板后部的空腔(34)中的阳型固定元件(35)而固定。
3.根据权利要求2所述的刀具,其特征在于,所述固定元件(35)是管状销。
4.根据权利要求1-3中任一项所述的刀具,其特征在于,所述狭缝(36)由两个彼此相互平行的平面的上下表面(37,38)、以及拱形的内边缘表面(39)限定,并且所述锁定板(24)包括拱形的后边缘表面(27)。
5.根据权利要求1-3中任一项所述的刀具,其特征在于,锁定板(24)的前部形成有两个或更多个肩部表面(29),它们成对地彼此形成至少90°的角。
6.根据权利要求4所述的刀具,其特征在于,锁定板(24)的轮廓形状由拱形的后边缘表面(27)和两个直边缘表面(28)确定,所述两个直边缘表面(28)朝一共同区域延伸,在该共同区域中形成肩部表面(29)。
7.根据权利要求1-3中任一项所述的刀具,其特征在于,狭缝(36)的下表面(38)被定位在与刀座(4)的底面(10)相同的平面内,所述底面(10)和下表面(38)是单个的平面表面的一部分。
8.根据权利要求1-3中任一项所述的刀具,其特征在于,所述刀具是铣刀,其基体(1)可绕中心轴线(C)旋转,并且具有多个沿周向分离的刀座(4)以及与之相联的容屑槽(6),这些容屑槽(6)彼此由隔墙(9)隔开并且由隔墙的前侧(7)以及相邻隔墙的凹拱形后侧(8)各自限定,且所述锁定板(24)和用于该锁定板(24)的狭缝(36)被定位在每个容屑槽的前侧(7)下方,并且有横向孔(40)从所述前侧和后侧(7,8)中的至少一个延伸至所述狭缝。
9.根据权利要求8所述的刀具,其特征在于,切削刀片(5)在其下部具有多个平面的接合表面(22),并且锁定板(24)具有多个用于与所述切削刀片的接合表面(22)相配合的平面的肩部表面(29)。
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IL124282A (en) * | 1998-04-29 | 2001-10-31 | Iscar Ltd | Cutting tool system and cutting tool for it |
US5988952A (en) * | 1998-05-26 | 1999-11-23 | Antoun; Gregory S. | Grooving and threading tool |
IL141089A (en) * | 2001-01-25 | 2006-08-20 | Amir Satran | Put a spin |
US6540448B2 (en) * | 2001-05-14 | 2003-04-01 | Ingersoll Cutting Tool Company | Cutting tool with improved insert seat arrangement for indexable cutting inserts |
IL145574A0 (en) * | 2001-09-24 | 2002-06-30 | Iscar Ltd | Cutting tool and cutting insert therefor |
IL153796A0 (en) * | 2003-01-05 | 2003-07-31 | Iscar Ltd | Cutting insert holder |
JP4430956B2 (ja) * | 2003-03-26 | 2010-03-10 | 日本特殊陶業株式会社 | カッターボディおよび回転工具、並びに回転工具の組立方法 |
JP2005103710A (ja) * | 2003-09-30 | 2005-04-21 | Ngk Spark Plug Co Ltd | 切削インサート及び回転工具 |
SE528710C2 (sv) * | 2005-06-01 | 2007-01-30 | Sandvik Intellectual Property | Indexerbart frässkär med kopplingsmedlet anordnat på en släppningsyta |
SE528751C2 (sv) * | 2005-06-27 | 2007-02-06 | Sandvik Intellectual Property | Svarvverktyg och indexerbart svarvskär, samt tillsats för dylika svarvverktyg |
-
2005
- 2005-12-21 SE SE0502832A patent/SE530181C2/sv not_active IP Right Cessation
-
2006
- 2006-12-06 EP EP06125496A patent/EP1800779B1/en not_active Not-in-force
- 2006-12-06 AT AT06125496T patent/ATE439205T1/de not_active IP Right Cessation
- 2006-12-06 DE DE602006008410T patent/DE602006008410D1/de active Active
- 2006-12-19 KR KR1020060130239A patent/KR101299756B1/ko not_active IP Right Cessation
- 2006-12-20 US US11/641,950 patent/US7390149B2/en not_active Expired - Fee Related
- 2006-12-21 JP JP2006344570A patent/JP5221033B2/ja not_active Expired - Fee Related
- 2006-12-21 CN CN2006101685641A patent/CN1986128B/zh not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
DE602006008410D1 (de) | 2009-09-24 |
EP1800779A3 (en) | 2007-12-26 |
KR101299756B1 (ko) | 2013-08-23 |
CN1986128A (zh) | 2007-06-27 |
SE530181C2 (sv) | 2008-03-18 |
EP1800779B1 (en) | 2009-08-12 |
ATE439205T1 (de) | 2009-08-15 |
US20070183857A1 (en) | 2007-08-09 |
SE0502832L (sv) | 2007-06-22 |
JP5221033B2 (ja) | 2013-06-26 |
US7390149B2 (en) | 2008-06-24 |
EP1800779A2 (en) | 2007-06-27 |
JP2007168071A (ja) | 2007-07-05 |
KR20070067628A (ko) | 2007-06-28 |
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