CN107530803B - 齿精整的制齿方法及其组合刀具 - Google Patents
齿精整的制齿方法及其组合刀具 Download PDFInfo
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- 238000000034 method Methods 0.000 title claims description 16
- 238000003754 machining Methods 0.000 claims abstract description 48
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- 238000005520 cutting process Methods 0.000 claims abstract description 20
- 238000004519 manufacturing process Methods 0.000 claims abstract description 5
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23F—MAKING GEARS OR TOOTHED RACKS
- B23F5/00—Making straight gear teeth involving moving a tool relatively to a workpiece with a rolling-off or an enveloping motion with respect to the gear teeth to be made
- B23F5/12—Making straight gear teeth involving moving a tool relatively to a workpiece with a rolling-off or an enveloping motion with respect to the gear teeth to be made by planing or slotting
- B23F5/16—Making straight gear teeth involving moving a tool relatively to a workpiece with a rolling-off or an enveloping motion with respect to the gear teeth to be made by planing or slotting the tool having a shape similar to that of a spur wheel or part thereof
- B23F5/163—Making straight gear teeth involving moving a tool relatively to a workpiece with a rolling-off or an enveloping motion with respect to the gear teeth to be made by planing or slotting the tool having a shape similar to that of a spur wheel or part thereof the tool and workpiece being in crossed axis arrangement, e.g. skiving, i.e. "Waelzschaelen"
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23F—MAKING GEARS OR TOOTHED RACKS
- B23F17/00—Special methods or machines for making gear teeth, not covered by the preceding groups
- B23F17/006—Special methods or machines for making gear teeth, not covered by the preceding groups using different machines or machining operations
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23F—MAKING GEARS OR TOOTHED RACKS
- B23F19/00—Finishing gear teeth by other tools than those used for manufacturing gear teeth
- B23F19/10—Chamfering the end edges of gear teeth
- B23F19/102—Chamfering the end edges of gear teeth by milling
- B23F19/107—Chamfering the end edges of gear teeth by milling the tool being a fly cutter
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23F—MAKING GEARS OR TOOTHED RACKS
- B23F21/00—Tools specially adapted for use in machines for manufacturing gear teeth
- B23F21/005—Tools specially adapted for use in machines for manufacturing gear teeth with plural tools on a common axis
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23F—MAKING GEARS OR TOOTHED RACKS
- B23F23/00—Accessories or equipment combined with or arranged in, or specially designed to form part of, gear-cutting machines
- B23F23/12—Other devices, e.g. tool holders; Checking devices for controlling workpieces in machines for manufacturing gear teeth
- B23F23/1237—Tool holders
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P13/00—Making metal objects by operations essentially involving machining but not covered by a single other subclass
- B23P13/02—Making metal objects by operations essentially involving machining but not covered by a single other subclass in which only the machining operations are important
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
- B23P15/14—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass gear parts, e.g. gear wheels
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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
- Y10T29/00—Metal working
- Y10T29/51—Plural diverse manufacturing apparatus including means for metal shaping or assembling
- Y10T29/5168—Multiple-tool 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
- Y10T29/00—Metal working
- Y10T29/51—Plural diverse manufacturing apparatus including means for metal shaping or assembling
- Y10T29/5176—Plural diverse manufacturing apparatus including means for metal shaping or assembling including machining means
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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
- Y10T409/00—Gear cutting, milling, or planing
- Y10T409/10—Gear cutting
- Y10T409/101113—Gear chamfering or deburring
- Y10T409/101272—Using relatively reciprocating or oscillating cutter
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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
- Y10T409/00—Gear cutting, milling, or planing
- Y10T409/10—Gear cutting
- Y10T409/101431—Gear tooth shape generating
- Y10T409/10477—Gear tooth shape generating by relative axial movement between synchronously indexing or rotating work and cutter
- Y10T409/105088—Displacing cutter axially relative to work [e.g., gear shaving, etc.]
- Y10T409/105247—Using gear shaper-cutter
- Y10T409/105565—Cutting rotating work, the axis of which lies in a plane intersecting the cutter axis
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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
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- Y10T409/10795—Process
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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
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- Y10T409/10—Gear cutting
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- Y10T409/108586—Plural rotary cutters
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Abstract
本发明涉及一种齿轮制造方法,其中,在第一个步骤,用由刀具轴(2)驱动旋转的刮削齿轮(4)在由工件轴(5)驱动与之同步旋转的轮坯(1)中加工轮齿(6),在这里,工件轴(5)与刀具轴(2)的轴线互成交叉角(α)并沿齿面延伸方向实施进给,以及其中,在第二个步骤,用齿加工刀具(7)切削加工轮齿(6)的至少几个齿。使用一种组合刀具,其中齿加工刀具(7)与刮削齿轮(4)互相固定连接。在这两个步骤之间,组合刀具(3)与刀具轴(2)以及轮坯(1)与工件轴(5)保持连接。在这两步骤之间只改变刀具轴(2)相对于工件轴(5)的相对位置和两个轴(2、5)的转速比。
Description
技术领域
本发明涉及一种齿轮制造方法,其中,在第一个步骤,用由刀具轴驱动旋转的刮削齿轮在由工件轴驱动与之同步旋转的轮坯中加工轮齿,在这里,工件轴与刀具轴的轴线互成交叉角并沿齿面延伸方向实施进给,以及其中,在第二个步骤,用齿加工刀具切削加工轮齿的至少几个齿。
背景技术
DE102008037514A1说明了一种轮坯的制齿方法。毛坯可以用滚削齿轮在内部或外部制齿。为此将轮坯紧固在工件轴上以及将刮削齿轮紧固在刀具轴上。驱动工件轴和刀具轴同步旋转。工件轴的轴线与刀具轴的轴线互成交叉角,所以圆周制齿的刮削齿轮作刮削运动,在此过程中刮削齿轮切削齿的刀刃沿齿延伸方向运动经过工件,与此同时实施滚动运动。进给沿齿延伸方向进行,因此在制直齿的情况下沿工件轴的轴线方向进行。
DE19964396B4记载了借助齿加工刀具精整制齿的轮坯。齿加工刀具是侧凹刀具或止动槽刀具,用它可以加工事先已制成的齿的齿面。
US4726720同样记载了一种精整方法,其中已预制齿的毛坯用冲击式刀片加工。冲击式刀片涉及倒角刀具,用它给齿的端面棱边倒角。
此外在现有技术中还已知,已制齿的轮坯另外再切削加工,此时尤其加工齿面或齿的端面。
在现有技术中,第一个步骤,亦即例如对未制齿毛坯的制齿,在第一台机床上实施,而第二个步骤,亦即齿的精整,在第二台机床上实施。在这些加工步骤之间必须变换夹紧工件,从而可能出现紧固误差。尤其会发生旋转运动误差之类的,因为公差引起轮坯的轴线并没有与工件轴线精确同轴。所使用的刀具尤其基于公差也有旋转运动缺陷。
这两个刀具以及工件紧固的旋转运动误差会不利地叠加。由此增大加工误差。
发明内容
本发明要解决的技术问题是提供一种方法,用它能使因公差引起的加工误差最小化。
上述技术问题通过在权利要求中所述的本发明得以解决。从属权利要求不仅表述在主权利要求中所说明方法的有利的扩展设计。从属权利要求还用作解决所述技术问题的独立的解决办法。
首先而且重要地规定,精整用的齿加工刀具与刮削齿轮互相固定连接。这两个刀具构成一种携带在同一个刀具轴上的组合刀具。齿轮的加工,亦即制齿和精整,通过轮坯唯一的一次紧固实现。因为在这两个步骤之间将轮坯和刀具远离对应配属的轴,所以不再发生上面已提及的因变换夹紧引起叠加的旋转运动误差。在成批生产的情况下,齿加工刀具相对于刮削齿轮的位置始终相同。如果存在旋转运动误差,则可以通过控制机床轴线进行补偿。优选地,尚未制齿或仅预制齿的毛坯用工件轴的卡盘夹住。然后在第一个工艺步骤中实施对毛坯制齿或对毛坯预制齿。轮齿的轴线此时优选地准确位于工件轴的轴线内。此制齿步骤借助具有切削齿的刮削刀具,通过沿轮齿的齿面延伸方向进给完成,刮削刀具与工件的旋转同步地被驱动旋转。在第二个工艺步骤中,已制齿的毛坯在工件轴内同样的紧固下用齿加工刀具进一步加工。此时进行齿面或齿端面的加工。为此,刀具轴和工件轴也被驱动而同步旋转。优选地改变转速比。轴线交叉角在第一个和第二个工艺步骤中也互不相同。因此优选地规定,在这两个步骤之间仅仅改变刀具轴相对于工件轴的相对位置以及这两个轴的转速比。齿的加工可以涉及倒角、涉及加工侧凹或止动槽、或涉及万能铣或钻孔。优选地,齿加工刀具因此涉及倒角、侧凹、或止动槽、万能铣或钻孔的刀具。优选地,齿加工刀具是一种冲击式刀片的刀具,它有一个或多个包括一个或多个刀刃的冲击式刀片。在切削时刀刃围绕旋转轴线沿切削包络线运行。在这里涉及旋转切削。冲击式刀片的刀刃沿着它运动的切削包络线可以有比刮削齿轮的切削齿小的半径。在组合刀具中,刮削齿轮和齿加工刀具沿轴向串联排布。
此外,本发明还涉及一种在上述类型的方法中使用的组合刀具。其要点在于与齿加工刀具固定连接的刮削齿轮。齿加工刀具可以携带具有刀刃的冲击式刀片。刮削齿轮与齿加工刀具轴向串联排布,其中齿加工刀具位于组合刀具的自由端,以及刮削齿轮设置在夹紧端与齿加工刀具之间。
附图说明
下面借助附图说明本发明的实施例。其中:
图1示意表示与工件轴5固定连接的轮坯1滚削制齿时的组合刀具3;
图2表示相对于工件轴5旋转90°换位后按图1的剖视图;
图3表示在齿精整时按图1的视图;
图4表示组合刀具3的底视图;
图5表示组合刀具3的第一个侧视图;以及
图6表示组合刀具3的第二个侧视图。
具体实施方式
在图4至6中表示的组合刀具3有夹紧端11,通过它可以将组合刀具3夹紧在刀具轴2的夹盘内,该刀具轴2可以由电动机驱动旋转。电动机受控制器控制。控制器还控制另一台用于驱动工件轴5的电动机。工件轴5有卡盘10,要加工的轮坯1夹紧在卡盘10内。将控制器设计为,驱动刀具轴2和工件轴5相互同步旋转。
组合刀具3有刮削齿轮4,用它可以通过滚削给作为毛坯的轮坯制造内齿6,如DE102008037514A1所说明的那样。为此,刀具轴2和工件轴5被驱动以这样的方式相互同步旋转,亦即使刮削齿轮4的切削齿,刮削地进入轮齿6构成的齿隙中。刀具轴2的轴线在这里相对于工件5的轴线成轴线交叉角α。
图1和2表示相关的第一个加工步骤,在此步骤中进给沿工件轴5的轴线方向定向,所以制成直齿。在制斜齿的情况下,在进给时叠加一个相对转动。以类似的方式也能为制外齿的轮坯1制齿。
刮削齿轮4的切削齿背对夹紧端11地面朝组合刀具3自由端的方向,自由端由轴颈12构成,轴颈12的直径小于刮削齿轮4的直径。
与刮削齿轮4固定连接的轴颈12,携带多个分别有一个刀刃9的冲击式刀片8。当组合刀具3围绕其旋转轴线旋转时,刀刃9围绕组合刀具3的体形对称轴沿包络线运动。刀刃9在其内部旋转的包络面,有比刮削齿轮4切削齿小的直径。
在本实施例中,设置在组合刀具3自由端的齿加工刀具7,是一种制造止动槽或侧凹的刀具。为此,如在图3中所示,齿加工刀具7被置于一个加工位置。此时工件5的轴线平行于刀具轴2的轴线延伸。在图3中表示的第二个加工步骤,按时间在图1和2所示的第二个加工步骤之后实施,不过没有将轮坯1从卡盘10取出的间断时间,或没有从刀具轴2取下组合刀具3的间断时间。不仅组合刀具3而且轮坯1保持各自的紧固。
在图3中表示的加工步骤中,刀具轴2和工件轴5同样被驱动相互同步旋转,然而以另一个转速比,所以在第一个加工步骤中制成的齿的齿面内加工开设止动槽或侧凹。此时进给沿工件轴5的径向进行。
在一种图中没有表示的实施例中,齿加工刀具可以是倒角刀具,用它给事先在第一个工艺步骤中已制成的齿的端面倒角。
以上的叙述用于说明本申请包括的全部发明,它们至少通过下面的特征组合还分别独立地进一步发展现有技术,也就是说:
一种方法,其特征在于,齿加工刀具7与刮削齿轮4互相固定连接构成组合刀具3,以及,在这两个步骤之间,组合刀具3与刀具轴2和轮坯1与工件轴5保持连接。
一种方法,其特征在于,在这两步骤之间只改变刀具轴2相对于工件轴5的相对位置和两个轴2、5的转速比。
一种方法,其特征在于,齿加工刀具7是倒角、侧凹、止动槽、万能铣或钻孔的刀具。
一种方法,其特征在于,齿加工刀具7是一种冲击式刀片,包括一个或多个沿切削包络线旋转的刀刃。
一种组合刀具,其特征在于,刮削齿轮4与齿加工刀具7固定连接。
一种组合刀具,其特征在于,齿加工刀具7携带至少有一个刀刃9的冲击式刀片8。
一种组合刀具,其特征在于,刮削齿轮4设置在齿加工刀具7与组合刀具3的夹紧端11之间。
一种组合刀具,其特征在于,齿加工刀具7配置在组合刀具3与夹紧端11相对置的自由端。
所有公开的特征均为(本)发明(但也在互相组合时)的重要内容。在本申请所公开的内容中也全面吸收了相关的/所附的优先权文件(在先申请副本)所公开的内容,也为此目的,这些文件的特征吸纳在本申请的权利要求中。从属权利要求以它们的特征描述了对现有技术独立的、有创造性的扩展设计,尤其为了以这些权利要求为基础进行分案申请。
附件标记清单
1 齿轮、轮坯
2 刀具轴
3 组合刀具
4 刮削齿轮
5 工件轴
6 轮齿
7 齿加工刀具
8 冲击式刀片
9 刀刃
10 卡盘
11 夹紧端
12 轴颈
α 轴线交叉角
Claims (5)
1.一种用于齿轮制造的方法,其中,在第一个步骤,用由刀具轴(2)驱动旋转的刮削齿轮(4)在由工件轴(5)驱动与之同步旋转的轮坯(1)中加工轮齿(6),在这里,工件轴(5)与刀具轴(2)的轴线互成交叉角(α)并沿齿面延伸方向实施进给,以及其中,在第二个步骤,用齿加工刀具(7)切削加工轮齿(6)的至少几个齿,其中,齿加工刀具(7)与刮削齿轮(4)互相固定连接构成组合刀具(3),以及,在这两个步骤之间,组合刀具(3)与刀具轴(2)以及轮坯(1)与工件轴(5)保持连接,其特征为,所述齿加工刀具(7)是倒角、侧凹、止动槽、万能铣或钻孔的刀具,在这里,在不同的转速比和轴线交叉角(α)的情况下实施所述两个加工步骤,以及,在这两个加工步骤之间只改变刀具轴(2)相对于工件轴(5)的相对位置和刀具轴(2)与工件轴(5)的转速比,其中,齿加工刀具(7)由组合刀具(3)的与夹紧端(11)相对置的唯一的自由端构成,通过所述夹紧端(11)将所述组合刀具(3)与所述刀具轴(2)相连。
2.按照权利要求1所述的方法,其特征为,齿加工刀具(7)是一种冲击式刀片,包括一个或多个沿切削包络线旋转的刀刃。
3.一种在按照上述权利要求1或2所述方法中使用的组合刀具(3),其中,刮削齿轮(4)与齿加工刀具(7)固定连接,其特征为:所述齿加工刀具(7)是倒角、侧凹、止动槽、万能铣或钻孔的刀具,它相对于刮削齿轮(4)在工件轴(5)与刀具轴(2)的另一种转速比以及在工件轴(5)与刀具轴(2)之间另一种轴线交叉角(α)的情况下工作。
4.按照权利要求3所述的组合刀具,其特征为,齿加工刀具(7)携带至少具有一个刀刃(9)的冲击式刀片(8)。
5.按照权利要求3或4所述的组合刀具,其特征为,刮削齿轮(4)设置在齿加工刀具(7)与组合刀具(3)的夹紧端(11)之间。
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US20180079019A1 (en) | 2018-03-22 |
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