CN101272879A - 铣刀和可转位切削刀片 - Google Patents
铣刀和可转位切削刀片 Download PDFInfo
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- B23C5/00—Milling-cutters
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- B23C5/202—Plate-like cutting inserts with special form
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- 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
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- B23C2200/00—Details of milling cutting inserts
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- B23C—MILLING
- B23C2210/00—Details of milling cutters
- B23C2210/04—Angles
- B23C2210/0407—Cutting angles
- B23C2210/0442—Cutting angles positive
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- B23C2210/00—Details of milling cutters
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- B23C2210/0407—Cutting angles
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- B23C2228/00—Properties of materials of tools or workpieces, materials of tools or workpieces applied in a specific manner
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- 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
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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
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- Y10T407/00—Cutters, for shaping
- Y10T407/23—Cutters, for shaping including tool having plural alternatively usable cutting edges
- Y10T407/235—Cutters, for shaping including tool having plural alternatively usable cutting edges with integral chip breaker, guide or deflector
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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
- Y10T407/24—Cutters, for shaping with chip breaker, guide or deflector
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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
- Y10T407/24—Cutters, for shaping with chip breaker, guide or deflector
- Y10T407/245—Cutters, for shaping with chip breaker, guide or deflector comprising concave surface in cutting face of tool
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Abstract
本发明涉及一种用于排屑机加工的铣刀,所述铣刀包括铣刀主体(1),所述铣刀主体(1)带有与所述铣刀主体(1)的端部相连的若干刀片槽,其中在轴向方向(C-C),铣刀主体(1)的相对的端部被成形以与工具附件协作,所述可转位切削刀片(3)被固定在切削刀片座中。切削刀片在端表面(13)之间具有高度(H),并且每个主表面(11、11A)包括相关的支撑表面(17、17A)。本发明还涉及一种可转位切削刀片,其用于被设置在依照本发明的铣刀中。依照本发明的铣刀的区别在于,各主切削刃(15)到与背离主切削刃的支撑表面(17A)重合的平面的垂直距离在从切削角部(14)到可转位切削刀片(3)的半高度区域中的峰顶(18)的方向上增大。
Description
技术领域
本发明涉及一种根据附加的独立权利要求前序部分所述的、用于排屑机加工的铣刀和可转位切削刀片。
以前已知一种大体上长方形的铣削刀片,其具有两个起作用的切削刀片角部,所述切削刀片角部对角地设置在切削刀片的主表面上。主切削刃沿切削刀片的长边延伸,而副切削刃沿着铣削刀片的短边延伸。由于铣削刀片具有两个起作用的切削刀片角部,所以其可转位两次。
以前还已知一种铣刀,其包括铣刀主体,铣刀主体设有若干可转位切削刀片。各可转位切削刀片包括四个主切削刃和一个与每个主切削刃相连的副切削刃。在铣刀主体的安装位置,可转位切削刀片具有正轴向前角和正径向前角。可转位切削刀片沿着主切削刃的延伸大体上成螺旋形状。
发明目的和特征
本发明的主要目的是提供一种上述标题限定类型的铣刀和适用于此的可转位切削刀片,所述铣刀能够较大切削深度地机加工工件的直角角部。
本发明的附加目标是开发依照本发明的可转位切削刀片,这是以其寿命期间可以转位四次的方式开发的。
本发明的又另一个目标是开发依照本发明的可转位切削刀片,使得可转位切削刀片在铣刀主体中稳定定位成为可能。
至少本发明的主要目标是借助于具有附带的独立权利要求所述特征的铣刀和可转位切削刀片实现的。本发明的优选实施例被限定在从属权利要求中。
附图简要说明
下面描述了本发明的实施例,其中参照公开的附图,其中:
图1显示了依照本发明的铣刀的透视图;
图2显示了从依照本发明的可转位切削刀片的前部稍微倾斜的第一透视图,依照本发明的所述铣刀设有若干这样的可转位切削刀片;
图3显示了依照图2的可转位切削刀片的另一个透视图,从长边显示了所述切削刀片;和
图4从其短边显示了切削刀片的透视图。
发明优选实施例的详细说明
如图1所示,依照本发明的铣刀包括铣刀主体1,所述铣刀主体1在图1中的下端具有若干切削刀片槽,其中接收有相应数目的可转位切削刀片3。各可转位切削刀片3具有中心孔4,并且各可转位切削片3借助于由中心孔4接收的中心螺钉(未显示)被夹紧在切削刀片槽中。在图1中,画出了铣刀的中心轴线C-C,所述中心轴线C-C还限定了铣刀的旋转轴线及其轴向方向。铣刀的旋转方向R由图1中的箭头描绘出。
铣刀主体1被形成以与位于图1中的上端的工具附件或类似物相连接。
在图2-4中显示了依照本发明的可转位切削刀片的不同透视图。依照本发明的可转位切削刀片3在平面图中大体上为长方形。可转位切削刀片3由直接压制的硬质合金制成。这里的“硬质合金”指的是与金属粘结剂例如Co或Ni烧结组合的WC、TiC、TaC、NbC等等。切削刀片优选至少部分地涂敷有至少一层例如Al2O3、TiN和/或TiCN。在有些情况下,切削刃由钎焊的超硬材料例如CBN或PCD制成,这有根据的。
可转位切削刀片3的高度在图2中表示为H。可转位切削刀片3的宽度在图2中表示为W。在所示的实施例中,H大于W,优选至少比W大30%。
依照本发明的可转位切削刀片3包括两个大体上相同的主表面11、11A。中心孔4在两个主表面11、11A之间延伸。可转位切削刀片3还包括两个长边或侧表面12和两个短边或端表面13。侧表面12和端表面13在切削刀片角部14处相交。而且,主表面11、11A的一部分连接到各切削刀片角部14。正如可转位切削刀片3的平面图所示,坐落在同一主表面上的两个切削刀片角部14对角地相对。在一侧上的其余两个角部不具有任何切削功能。如图1所示,在可转位切削刀片3所包括的四个切削刀片角部14中,在这时只有一个起作用。
主切削刃15开始于各切削刀片角部14,其在可转位切削刀片3的高度方向上并大体上沿着整个相关的侧表面12延伸。而且,一副切削刃16开始于各切削刀片角部14,其在可转位切削刀片3的宽度方向上并大体上沿着相关的端表面13的一部分延伸。连接于主切削刃15和副切削刃16的主表面11、11A的那部分形成断屑槽。
正如从图3中显而易见,当可转位切削刀片被安装在铣削刀体1的切削刀片座中时,可转位切削刀片3的起作用的主切削刃15具有从切削角部14到可转位切削刀片3在高度方向上的伸出长度的大约一半的增加的负轴向角。主切削刃15的这个部分由15′描绘。负轴向角由切削角部14附近的α1以及可转位切削刀片3的半高度区域中的α2描绘。从图3中还显而易见,在图3中坐落于可转位切削刀片3的半高度上方的主切削刃15部分由15″描绘。该部分15″具有正轴向角,该正轴向角在从半高度的方向向上变小。在可转位切削刀片3的半高度区域中,正轴向角被表示为α3,在图3中可转位切削刀片3的上端区域中,正轴向角被表示为α4。为了例证但不作为限制目的,可以提及,α1和α4的合适值大约为7°,而α2和α3的合适值大约为18°。所以,对于图2-4所示的可转位切削刀片3的实施例,负轴向角从大约7°增大到大约18°,而正轴向角从大约18°减小至大约7°。主切削刃15包括设置在主切削刃的部分15′和15″彼此相连的地方的峰顶18。峰顶18相对于至少在三个点触及相关的侧表面12的平面P1被压印(indented)。
主切削刃15的轴向角的上述设计必然要求:各主切削刃15到坐落于相对支撑表面17A中的平面的垂直距离在从切削角部14到可转位切削刀片3的半高度的区域的方向上增大。各主切削刃15到坐落于相对的支撑表面17A中的平面的垂直距离从可转位切削刀片3的半高度的区域以及从切削角部14朝着不起作用的角部的方向减小。因而,所述距离与被设置在距离当前或起作用的主切削刃15最远处的支撑表面17、17A有关,所以在权利要求书中使用了措辞“背离主切削刃的支撑表面”和“相对的”。各支撑表面17、17A被设置成远离可转位切削刀片的周边,以免干扰切削刃区域。
在图3中,主切削刃由15A描绘,其与主表面11A相关,见图4。主切削刃15A包括主切削刃15′A和15″A的两部分。
正如在图2中可清楚地看到的,在可转位切削刀片3的高度方向上,至少在连接到主切削刃15的侧表面12的那部分中,侧表面12具有一定凹度。该设计的原因是,图2中的右主切削刃15在所示的透视图中必须完全是直的。
正如在图4中可清楚地看到的,主表面11和11A分别设置有支撑表面17和17A。
各支撑表面17、17A大体上在其对角线方向上逐渐倾斜于可转位切削刀片3的高度方向,使得支撑表面17和主切削刃15之间的距离在切削角部14区域、即在主切削刃的下部分15′区域比在主切削刃15的上部分15″区域大。支撑表面17在可转位切削刀片3的高度方向上具有一定倾斜度的原因是,这样,可以使到主切削刃15的距离在切削角部区域减小。这也可以通过观察图2而认识到。坐落于相对侧的支撑表面17A,在图2中看不到,其具有一定的倾斜,当支撑表面17A靠近各自的切削刀片角部14时,该倾斜使得支撑表面17A逐渐靠近主切削刃15。在安装位置,支撑表面17A与刀片槽中的相应升高部分协作,由此实现可转位切削刀片3在刀片槽中的出色的刚性固定。
本发明决不局限于上述的实施例,其在附带的权利要求的限定内可以自由地变化。
Claims (8)
1.一种用于排屑机加工的铣刀,所述铣刀包括铣刀主体(1),所述铣刀主体(1)带有与所述铣刀主体(1)的端部相连的若干刀片槽,其中在轴向方向(C-C),所述铣刀主体(1)的相对的端部被成形以与工具附件协作,所述可转位切削刀片(3)被固定在切削刀片座中,其中各可转位切削刀片(3)具有两个大体上相同的主表面(11、11A),所述两个侧表面(12)和两个端表面(13)在所述主表面(11、11A)之间延伸,每个所述主表面(11、11A)包括两个切削刀片角部(14),每个所述切削刀片角部(14)包括主切削刃(15)和副切削刃(16),其中各主表面(11、11A)的若干部分构成前刀面,其中各侧表面(12)和各端表面(13)的若干部分构成余隙表面,所述切削刀片在所述端表面(13)之间具有高度(H),各所述主表面(11、11A)包括相关的支撑表面(17、17A),
其特征在于,各主切削刃(15)到与背离所述主切削刃(15)的所述支撑表面(17A)重合的平面的垂直距离在从所述切削角部(14)到所述可转位切削刀片(3)的半高度(H)的区域中的峰顶(18)的方向上增大。
2.根据权利要求1所述的铣刀,其特征在于,各主切削刃(15)到坐落于相对的支撑表面(17A)的平面的垂直距离在从所述可转位切削刀片(3)的所述半高度的区域中的所述峰顶(18)离开所述切削角部(14)的方向上减小。
3.根据权利要求1或2所述的铣刀,其特征在于,构成余隙表面的各侧表面(12)的那部分在所述可转位切削刀片(3)的所述高度方向上凹入。
4.一种可转位切削刀片(3),主要用于在工件中铣削垂直角部,所述可转位切削刀片(3)具有两个大体上相同的主表面(11、11A),其中两个侧表面(12)和两个端表面(13)在所述主表面(11、11A)之间延伸,每个所述主表面(11、11A)包括两个切削刀片角部(14),每个所述切削刀片角部(14)包括主切削刃(15)和副切削刃(16),其中各主表面(11、11A)的若干部分构成前刀面,其中各侧表面(12)和各端表面(13)的若干部分构成余隙表面,所述切削刀片在所述端表面(13)之间具有高度(H),各所述主表面(11、11A)包括相关的支撑表面(17、17A),其特征在于,各主切削刃(15)到与背离所述主切削刃(15)的所述支撑表面(17A)重合的平面的垂直距离在从所述切削角部(14)到所述可转位切削刀片(3)的半高度(H)的区域中的峰顶(18)的方向上增大。
5.根据权利要求4所述的可转位切削刀片(3),其特征在于,各主切削刃(15)到坐落于相对的支撑表面(17A)的平面的垂直距离在从所述可转位切削刀片(3)的所述半高度的区域中的所述峰顶(18)离开所述切削角部(14)的方向上减小。
6.根据权利要求4或5所述的可转位切削刀片(3),其特征在于,构成余隙表面的各侧表面(12)的那部分在所述可转位切削刀片(3)的所述高度方向上凹入。
7.根据权利要求4-6中的任一项所述的可转位切削刀片,其特征在于,各主表面(11、11A)具有支撑表面(17、17A),并且主切削刃(15、15A)与所述支撑表面(17、17A)之间的距离在所述可转位切削刀片(3)的所述高度方向上沿从所述切削角部(14)的方向减小。
8.根据权利要求4-7中的任一项所述的可转位切削刀片,其特征在于,各支撑表面(17、17A)被设置成远离所述可转位切削刀片的周边。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
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SE0502135A SE529108C2 (sv) | 2005-09-28 | 2005-09-28 | Fräs samt vändskär för spånavskiljande bearbetning med skäregg belägen lägre en stödyta |
SE0502135-7 | 2005-09-28 | ||
PCT/SE2006/001041 WO2007037734A1 (en) | 2005-09-28 | 2006-09-11 | A milling cutter and an indexable cutting insert |
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CN101272879A true CN101272879A (zh) | 2008-09-24 |
CN101272879B CN101272879B (zh) | 2010-12-08 |
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CN2006800355820A Expired - Fee Related CN101272879B (zh) | 2005-09-28 | 2006-09-11 | 铣刀和可转位切削刀片 |
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US (1) | US7252461B2 (zh) |
EP (1) | EP1931488B1 (zh) |
KR (1) | KR101292864B1 (zh) |
CN (1) | CN101272879B (zh) |
CZ (1) | CZ303659B6 (zh) |
SE (1) | SE529108C2 (zh) |
WO (1) | WO2007037734A1 (zh) |
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2006
- 2006-09-11 CN CN2006800355820A patent/CN101272879B/zh not_active Expired - Fee Related
- 2006-09-11 KR KR1020087006441A patent/KR101292864B1/ko active IP Right Grant
- 2006-09-11 WO PCT/SE2006/001041 patent/WO2007037734A1/en active Application Filing
- 2006-09-11 CZ CZ20080098A patent/CZ303659B6/cs not_active IP Right Cessation
- 2006-09-11 EP EP06784171.8A patent/EP1931488B1/en not_active Not-in-force
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CN108788265A (zh) * | 2017-05-05 | 2018-11-13 | 张新添 | 舍弃式倒角刀具 |
CN107081462A (zh) * | 2017-05-16 | 2017-08-22 | 西安秦越精密工具有限公司 | 四刃口面铣刀 |
CN107414155A (zh) * | 2017-05-16 | 2017-12-01 | 西安秦越精密工具有限公司 | 双面可转位四刃口铣刀片 |
CN107252917A (zh) * | 2017-07-12 | 2017-10-17 | 北京沃尔德金刚石工具股份有限公司 | 一种可转位面铣刀片以及使用该刀片的面铣刀头 |
Also Published As
Publication number | Publication date |
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KR101292864B1 (ko) | 2013-08-02 |
CN101272879B (zh) | 2010-12-08 |
CZ303659B6 (cs) | 2013-02-06 |
SE0502135L (sv) | 2007-03-29 |
EP1931488B1 (en) | 2014-12-31 |
WO2007037734A1 (en) | 2007-04-05 |
CZ200898A3 (cs) | 2008-09-24 |
KR20080039496A (ko) | 2008-05-07 |
SE529108C2 (sv) | 2007-05-02 |
EP1931488A1 (en) | 2008-06-18 |
US7252461B2 (en) | 2007-08-07 |
EP1931488A4 (en) | 2011-05-18 |
US20070071560A1 (en) | 2007-03-29 |
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