CN106170361A - 加工装置及加工方法 - Google Patents

加工装置及加工方法 Download PDF

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CN106170361A
CN106170361A CN201580007105.2A CN201580007105A CN106170361A CN 106170361 A CN106170361 A CN 106170361A CN 201580007105 A CN201580007105 A CN 201580007105A CN 106170361 A CN106170361 A CN 106170361A
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cutter
workpiece
gear
blade
plant
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CN106170361B (zh
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高桥光
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Citizen Holdings Co Ltd
Citizen Machinery Co Ltd
Citizen Watch Co Ltd
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Citizen Machinery Co Ltd
Citizen Watch Co Ltd
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23FMAKING GEARS OR TOOTHED RACKS
    • B23F5/00Making 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
    • B23F5/20Making 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 milling
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23CMILLING
    • B23C3/00Milling particular work; Special milling operations; Machines therefor
    • B23C3/28Grooving workpieces
    • B23C3/30Milling straight grooves, e.g. keyways
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23CMILLING
    • B23C5/00Milling-cutters
    • B23C5/02Milling-cutters characterised by the shape of the cutter
    • B23C5/06Face-milling cutters, i.e. having only or primarily a substantially flat cutting surface
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23CMILLING
    • B23C5/00Milling-cutters
    • B23C5/02Milling-cutters characterised by the shape of the cutter
    • B23C5/10Shank-type cutters, i.e. with an integral shaft
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23FMAKING GEARS OR TOOTHED RACKS
    • B23F21/00Tools specially adapted for use in machines for manufacturing gear teeth
    • B23F21/12Milling tools
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23FMAKING GEARS OR TOOTHED RACKS
    • B23F21/00Tools specially adapted for use in machines for manufacturing gear teeth
    • B23F21/12Milling tools
    • B23F21/122Milling tools having a shape similar to that of a gear or part thereof, with cutting edges situated on the tooth contour lines
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23FMAKING GEARS OR TOOTHED RACKS
    • B23F5/00Making 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
    • B23F5/20Making 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 milling
    • B23F5/202Making 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 milling the tool having a shape similar to that of a gear or part thereof, with cutting edges situated on the tooth contour lines
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23FMAKING GEARS OR TOOTHED RACKS
    • B23F5/00Making 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
    • B23F5/20Making 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 milling
    • B23F5/205Making 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 milling with plural tools
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23FMAKING GEARS OR TOOTHED RACKS
    • B23F5/00Making 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
    • B23F5/20Making 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 milling
    • B23F5/22Making 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 milling the tool being a hob for making spur gears
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23CMILLING
    • B23C2210/00Details of milling cutters
    • B23C2210/24Overall form of the milling cutter
    • B23C2210/244Milling cutters comprised of disc-shaped modules or multiple disc-like cutters
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23CMILLING
    • B23C2220/00Details of milling processes
    • B23C2220/36Production of grooves
    • YGENERAL 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
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00Metal working
    • Y10T29/51Plural diverse manufacturing apparatus including means for metal shaping or assembling
    • Y10T29/5104Type of machine
    • Y10T29/5109Lathe
    • YGENERAL 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
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T407/00Cutters, for shaping
    • Y10T407/17Gear cutting tool
    • YGENERAL 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
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T407/00Cutters, for shaping
    • Y10T407/17Gear cutting tool
    • Y10T407/1745Rotary, tooth form cutting tool
    • YGENERAL 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
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T409/00Gear cutting, milling, or planing
    • Y10T409/10Gear cutting
    • Y10T409/101431Gear tooth shape generating
    • Y10T409/10159Hobbing
    • Y10T409/101749Process
    • YGENERAL 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
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T409/00Gear cutting, milling, or planing
    • Y10T409/10Gear cutting
    • Y10T409/101431Gear tooth shape generating
    • Y10T409/10477Gear tooth shape generating by relative axial movement between synchronously indexing or rotating work and cutter
    • Y10T409/105088Displacing cutter axially relative to work [e.g., gear shaving, etc.]
    • Y10T409/105247Using gear shaper-cutter
    • Y10T409/105565Cutting rotating work, the axis of which lies in a plane intersecting the cutter axis
    • YGENERAL 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
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T409/00Gear cutting, milling, or planing
    • Y10T409/10Gear cutting
    • Y10T409/107791Using rotary cutter
    • Y10T409/10795Process
    • YGENERAL 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
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T409/00Gear cutting, milling, or planing
    • Y10T409/10Gear cutting
    • Y10T409/107791Using rotary cutter
    • Y10T409/108586Plural rotary cutters
    • YGENERAL 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
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T409/00Gear cutting, milling, or planing
    • Y10T409/10Gear cutting
    • Y10T409/107791Using rotary cutter
    • Y10T409/108745Cutting action along work axis
    • Y10T409/108904Cutting action intersecting work axis

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Gear Processing (AREA)

Abstract

本发明实现一种可使用结构简单的加工装置以及现有的车床来容易地进行齿轮或花键轴加工的加工方法。本发明的加工装置(1)包括:刀具(11),其在周面具有形成为环状的刃部(20),并以轴线为中心被旋转驱动;工件保持单元(13),其旋转自如地保持工件(W);以及刀具驱动单元(12),其使刀具(11)与工件(W)沿轴线方向相对移动,并且,使刀具(11)与工件(W)的相对移动与工件(W)的旋转进行联动,并在使刀具(11)旋转的状态下在工件(W)的周面形成齿轮或花键轴,该加工装置(1)中,刃部(20)沿轴线双向并排设置有多个,刀具驱动单元(12)使刀具(11)绕轴线向一方向旋转,并使刀具(11)沿轴线相对于工件(W)而相对往复移动,工件保持单元(13)根据刀具(11)的往复移动而使工件(W)正转反转,并且,该加工装置(1)使刀具(11)的各刃部(20)与工件(W)的周面接触,以形成齿轮或花键轴的外形形状的方式对工件(W)进行切削。

Description

加工装置及加工方法
技术领域
本发明涉及一种形成齿轮或者具有齿轮状截面的轴的加工装置及加工方法。
背景技术
作为在工件上展成齿轮的方法及齿轮加工装置,一直以来知晓有如下方法及装置,该装置包括:刀具,其在周面具有形成为环状的切削刃,并以轴线为中心被旋转驱动;工件保持单元,其旋转驱动自如地保持工件;以及移动单元,其使刀具与工件沿刀具的轴线方向相对移动;并且,使刀具与工件的相对移动与工件的旋转进行联动,并在使刀具旋转的状态下将该刀具压抵至工件,由此在工件的周面上形成齿轮(例如,参考专利文献1)。
现有技术文献
专利文献
专利文献1:日本专利特开昭63-2609号公报
发明内容
在专利文献1(日本专利特开昭63-2609号公报)中记载那样的齿轮展成方法及齿轮加工装置的情况下,必须一边使工件向一方向旋转、一边使旋转的刀具依序移动来展成齿轮,存在难以高效地进行齿轮的加工的问题。
因而,本发明的目的在于,鉴于上述问题而提供一种可使用结构简单的齿轮加工装置以及现有的车床来容易地施行齿轮的加工的齿轮加工方法。
为了实现上述目的,本发明的加工装置包括:刀具,其在周面具有形成为环状的刃部,并以轴线为中心被旋转驱动;工件保持单元,其旋转自如地保持工件;以及刀具驱动单元,其使刀具与工件沿刀具的轴线方向相对移动,并且,加工装置使刀具与工件的相对移动与工件的旋转进行联动,并在使刀具旋转的状态下将刀具压抵至工件,由此在工件的周面上形成齿轮或者形成具有齿轮状截面的轴,在该加工装置中,刃部在沿轴线的方向上并排设置有多个,刀具驱动单元使刀具绕轴线向一方向旋转,并使刀具沿轴线相对于工件而相对往复移动,工件保持单元根据刀具的往复移动而使工件正转或反转,并且,该加工装置使刀具的各刃部与工件的周面接触,以形成齿轮或者具有齿轮状截面的轴的外形形状的方式对工件进行切削。
此外,本发明的加工装置中,将具有齿轮状截面的轴设为花键轴或细齿轴。
此外,本发明的加工装置包括控制单元,该控制单元以如下方式控制由刀具驱动单元实现的刀具的往复移动以及由工件保持单元实现的正转或反转:在刀具与工件的接触面,刀具的往复移动的行进方向及行进速度与工件的旋转方向及旋转速度同步。
此处,刃部可由以规定间隔沿周向设置在周面上的多个切削刃构成。
或者,刃部可由以绕轴线一周的方式连续形成的切削刃构成。
此外,本发明的加工方法如下:使在沿轴线的方向上并排设置有多个刃部的刀具绕轴线向一方向旋转,并使刀具在其轴线方向上相对于工件而相对往复移动,并且,根据刀具的往复移动而使工件正转或反转,使刀具的各刃部与工件的周面接触,从而以形成齿轮或者具有齿轮状截面的轴的外形形状的方式对工件进行切削,所述刃部呈环状形成于刀具的周面上。
此外,本发明的加工方法中,将具有齿轮状截面的轴设为花键轴或细齿轴。
此外,本发明的加工方法是以在刀具与工件的接触面,刀具的往复移动的行进方向及行进速度与工件的旋转方向及旋转速度同步的方式,根据刀具的往复移动而使工件正转或反转。
此处,刃部可由以规定间隔沿周向设置在周面上的多个切削刃构成。
或者,刃部可由以绕轴线一周的方式连续形成的切削刃构成。
根据本发明,通过使刀具与工件相对、连续地往复运动,并与该往复运动同步地使工件连续地正转及反转,可连续且容易地展成齿轮或者具有齿轮状截面的轴,从而可高效地进行齿轮或花键轴、细齿轴等的加工。此外,刀具能以在沿轴线的方向上并排设置多个绕轴线形成为环状的刃部的方式构成,从而无需像以往公知的滚刀那样沿螺旋形成切削刃作为齿轮的加工工具,因此结构较为简单。
此外,由于无需像上述滚刀那样以与切削刃的螺旋的倾斜角一致的方式对工件倾斜地配置刀具,因此可使用普通车床来容易地展成齿轮或者具有齿轮状截面的轴。
如此,根据本发明,可实现一种可使用结构简单的加工装置以及现有的车床来容易地施行齿轮或者具有齿轮状截面的轴的加工的加工方法。
附图说明
图1为表示本发明的实施例的齿轮加工装置的概略图。
图2为表示本发明的实施例的齿轮加工装置的一部分的立体图。
图3为本发明的实施例的齿轮加工装置中的刀具的放大图。
图4为说明本发明的实施例的齿轮加工装置中的刀具与工件的位置关系的立体图。
图5为表示刀具的往复移动的行进方向为A方向的情况下的工件的旋转方向的主视图。
图6为表示刀具的往复移动的行进方向为A方向的情况下的工件的旋转方向的仰视图。
图7为表示刀具的往复移动的行进方向为B方向的情况下的工件的旋转方向的主视图。
图8为表示刀具的往复移动的行进方向为B方向的情况下的工件的旋转方向的仰视图。
图9为表示本发明的实施例的齿轮加工装置中的刀具的刃部的变形例的图。
具体实施方式
图1为表示本发明的实施例的齿轮加工装置的概略图。以下,在不同附图中标注有相同参考符号的构成要素意指具有相同功能的构成要素。图2为表示本发明的实施例的齿轮加工装置的一部分的立体图。图3为本发明的实施例的齿轮加工装置中的刀具的放大图。
齿轮加工装置1包括刀具11、刀具驱动单元12、工件保持单元13及控制单元14。刀具驱动单元12和工件保持单元13由控制单元14加以控制。
在刀具11的周面上,绕刀具11的轴线R1以规定间隔沿周向设置有多个切削刃21。由这多个切削刃21构成一个切削刃21组,由一个切削刃21组在刀具11的周面上呈环状地形成一个刃部20。刃部20沿轴线R1并排设置有多个。
刀具驱动单元12例如由车床的刀架构成,以如下方式进行驱动:根据控制单元14的控制,使刀具11绕轴线R1旋转,并使刀具11在沿轴线R1的方向上往复移动。刀具11的旋转速度被设定为足够刀具11的刃部20对工件W进行切削的速度。
工件保持单元13例如由车床的主轴构成,以如下方式进行旋转驱动:根据控制单元14的控制,以刀具11的轴线R1与工件W的轴线R2交叉的方式保持工件W,并与刀具11的往复移动同步地使工件W以轴线R2为中心进行正转或反转。在本实施方式中,以轴线R1与轴线R2正交的方式保持工件W。
在本实施例中,通过控制单元14以如下方式来控制刀具驱动单元12及工件保持单元13,即,在刀具11沿A方向行进的情况下,工件W沿a方向旋转(在本说明书中,为方便起见,称为“正转”),在刀具11沿B方向行进的情况下,工件W沿b方向旋转(在本说明书中,为方便起见,称为“反转”)。
图4为说明本发明的实施例的齿轮加工装置中的刀具与工件的位置关系的立体图。此处,作为一例,对如下情况进行说明:刀具11相对于工件W而位于图4所示的纸面近前,形成齿形曲线成为渐开线曲线作为齿轮的外形形状的齿轮。
图5及图6为表示刀具的往复移动的行进方向为A方向的情况下的工件的旋转方向的图,图5为主视图,图6为仰视图。控制单元14控制刀具驱动单元12及工件保持单元13,在以形成齿轮的渐开线曲线的方式使刀具11的行进速度与工件W的旋转速度同步的状态下,使刀具11一边向一方向旋转一边沿A方向行进,并使工件W正转。由此,各刃部20依序接触工件W的周面,可在各切削刃21的一面(在图5及6中,为切削刃21的刀具11的行进方向A侧那一面41)侧连续切削工件W。
图7及图8为表示刀具的往复移动的行进方向为沿转轴R1的B方向的情况下的工件的旋转方向的图,图7为主视图,图8为仰视图。与前文所述的刀具11沿A方向行进、工件W正转的情况相反,控制单元14控制刀具驱动单元12及工件保持单元13,在以形成齿轮的渐开线曲线的方式使刀具11的行进速度与工件W的旋转速度同步的状态下,使刀具11一边向一方向旋转一边沿B方向行进,并使工件W反转。由此,各刃部20依序接触工件W的周面,可在各切削刃21的另一面(在图7及8中,为切削刃21的刀具11的行进方向B侧那一面42)侧连续切削工件W。
通过在使刀具11向一方向旋转的状态下连续地重复一边使刀具11沿A方向行进一边使工件W正转的动作(图5及图6),以及,一边使刀具11沿B方向行进一边使工件W反转的动作(图7及图8),可在工件W上高效地展成齿轮31。
如以上所说明,控制单元14控制由刀具驱动单元12实现的刀具11的往复移动并控制由工件保持单元13实现的正转或反转,以使得在刀具11与工件W的接触面,刀具11的沿轴线R1的方向的往复移动的行进方向及行进速度与工件W的绕转轴R2的旋转方向及旋转速度一致。
通过以车床的刀架构成刀具驱动单元12、以车床的主轴构成工件保持单元13,上述齿轮加工装置1可使用普通车床例如自动车床来实现。即,在车床的刀架上旋转驱动自如地安装刀具11,利用主轴的卡盘来保持工件W,并制作好如下车床的动作程序即可:使刀具11绕轴线R1向一方向旋转,并使刀具11沿轴线R1在规定距离的范围内往复移动,并且,使主轴像前文所述那样与刀具11的往复移动同步地绕轴线R2正转或反转。通过按照该动作程序来使车床动作,工件W可与刀具11的往复移动同步地绕轴线R2正转或反转,从而在工件W上容易地展成齿轮31。由此,通过以与主轴的轴线方向正交的方式安装刀具11,可使用普通车床来容易地展成齿轮,而无需像使用滚刀作为刀具来展成齿轮的情况那样设置使刀具(滚刀)倾斜的机构。
图9为表示本发明的实施例的齿轮加工装置中的刀具的刃部的变形例的图。如图9所示,可将刃部20的结构设为由呈环状连续绕刀具11的轴线R1一周这样的1块切削刃构成。
再者,在上述实施例中,通过使刀具11的轴线R1与工件W的轴线R2正交而在工件W的周面上展成了正齿轮。作为其变形例,若以刀具11的轴线R1与工件W的轴线R2以规定角度交叉而不正交的方式设定由刀具驱动单元12产生的刀具11的驱动轴的倾斜角度、工件保持单元13所保持的工件W的转轴的倾斜角度、或者这两个倾斜角度,则也可展成斜齿轮。
在图5~图8的例子中,为了使齿轮的齿形曲线成为渐开线曲线,在使刀具11的行进速度与工件W的旋转速度同步的状态下,使刀具11一边向一方向旋转一边沿A方向及B方向往复行进,并与刀具11的往复移动同步地使工件W正转及反转,从而将工件W切削成了齿形曲线为渐开线曲线的外形形状的齿轮。但并不限于齿形曲线为渐开线曲线的齿轮的加工,也能以齿形的外形形状成为摆线曲线或者方形截面或三角截面等的方式使刀具11与工件W同步,由此,在上述实施例中的齿轮加工装置中,在工件W上切削齿形曲线为摆线曲线的齿轮、或者具有方形截面或三角截面的外形形状的齿轮。
进而,也可利用上述实施例中的齿轮加工装置在工件W上形成具有齿轮状截面的轴例如花键轴或细齿轴的外形形状。在该情况下,例如在工件保持单元13中使工件W一边旋转、一边沿C方向行进形成于工件W上的花键轴的长度程度即可。
再者,作为所形成的花键轴或细齿轴,考虑具有截面的外形形状为渐开线曲线或方形、三角形等的渐开线齿型或方形齿型、三角齿等的渐开线轴或细齿轴。此外,也能以在外周的一部分形成齿的方式加工齿轮或者具有齿轮状截面的轴(花键轴、细齿轴等)。
本发明可运用于使用车床的、齿轮或者具有齿轮状截面的轴的展成。
符号说明
1 齿轮加工装置
11 刀具
12 刀具驱动单元
13 工件保持单元
14 控制单元
20 刃部
21 切削刃
31 齿轮。

Claims (10)

1.一种加工装置,其包括:刀具,其在周面具有形成为环状的刃部,并以轴线为中心被旋转驱动;工件保持单元,其旋转自如地保持工件;以及刀具驱动单元,其使所述刀具与所述工件沿所述刀具的轴线方向相对移动;并且,
使所述刀具与所述工件的相对移动与所述工件的旋转进行联动,并在使所述刀具旋转的状态下将所述刀具压抵至所述工件,由此,在所述工件的周面上形成齿轮或者具有齿轮状截面的轴的外形形状,
该加工装置的特征在于,
所述刃部在沿轴线的方向上并排设置有多个,
所述刀具驱动单元使所述刀具绕轴线向一方向旋转,且使所述刀具沿轴线相对于工件而相对往复移动,
所述工件保持单元根据所述刀具的往复移动而使所述工件正转或反转,并且,
该加工装置使所述刀具的各所述刃部与所述工件的周面接触,以形成齿轮或者具有齿轮状截面的轴的外形形状的方式对所述工件进行切削。
2.根据权利要求1所述的加工装置,其特征在于,所述具有齿轮状截面的轴由花键轴或细齿轴构成。
3.根据权利要求1或2所述的加工装置,其特征在于,包括控制单元,所述控制单元以如下方式控制由所述刀具驱动单元实现的所述刀具的往复移动以及由所述工件保持单元实现的正转或反转:在所述刀具与工件的接触面,所述刀具的往复移动的行进方向及行进速度与工件的旋转方向及旋转速度同步。
4.根据权利要求1~3中任一项所述的加工装置,其特征在于,所述刃部由以规定间隔沿周向设置在周面上的多个切削刃构成。
5.根据权利要求1~3中任一项所述的加工装置,其特征在于,所述刃部由以绕轴线一周的方式连续形成的切削刃构成。
6.一种加工方法,其特征在于,使在沿轴线的方向上并排设置有多个刃部的刀具绕轴线向一方向旋转,且使所述刀具沿其轴线方向相对于工件而相对往复移动,并且,根据所述刀具的往复移动而使所述工件正转或反转,并使所述刀具的各所述刃部与所述工件的周面接触,从而以形成齿轮或者具有齿轮状截面的轴的外形形状的方式对所述工件进行切削,所述刃部呈环状地形成于所述刀具的周面上。
7.根据权利要求1所述的加工方法,其特征在于,所述具有齿轮状截面的轴由花键轴或细齿轴构成。
8.根据权利要求6或7所述的加工方法,其特征在于,以如下方式根据所述刀具的往复移动而使所述工件正转或反转:在所述刀具与所述工件的接触面,所述刀具的往复移动的行进方向及行进速度与所述工件的旋转方向及旋转速度同步。
9.根据权利要求6~8中任一项所述的加工方法,其特征在于,所述刃部由以规定间隔沿周向设置在周面上的多个切削刃构成。
10.根据权利要求6~8中任一项所述的加工方法,其特征在于,所述刃部由以绕轴线一周的方式连续形成的切削刃构成。
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