JP2007000962A - Cutting tool and cutting method - Google Patents

Cutting tool and cutting method Download PDF

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JP2007000962A
JP2007000962A JP2005183272A JP2005183272A JP2007000962A JP 2007000962 A JP2007000962 A JP 2007000962A JP 2005183272 A JP2005183272 A JP 2005183272A JP 2005183272 A JP2005183272 A JP 2005183272A JP 2007000962 A JP2007000962 A JP 2007000962A
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cutting
cutting tool
cut
pressing
axis
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Toshiaki Segawa
俊明 瀬川
Masami Matsubara
正巳 松原
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JATCO Ltd
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JATCO Ltd
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a cutting tool and a cutting method, capable of simultaneously performing both cutting and pressing processes to reduce the machining time. <P>SOLUTION: This cutting tool includes: a cutting blade abutted on a member to be cut and relatively moved to cut the member; and a pressing member for pressing a cut surface formed on the member to be cut by cutting. The pressing part is abutted on the member to be cut simultaneously with the cutting blade, and adapted to press the cut surface formed in the member to be cut by the cutting blade. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

本発明は、切削工具とそれを用いた加工方法に関する。   The present invention relates to a cutting tool and a processing method using the cutting tool.

一般に、高い疲労強度が要求される切削加工部品に対しては、切削加工後の加工表面にショットピーニング等の処理を施す必要がある。ショットピーニングは、加工表面層に高い残留圧縮応力を生成し、かつ加工硬化を同時に行うことで表面強度を向上させる優れた加工方法ではあるが、切削加工後に2次加工を行う必要があるとともに、専用の設備も要求されることから生産効率の面ではデメリットもある。一方、疲労強度にとっては表面粗さも重要ではあるが、ショットピーニングを施す場合、加工条件によっては加工表面に打痕が残る場合もあるため、さらに表面仕上げ加工が必要となってしまう。   Generally, for a machined part that requires high fatigue strength, it is necessary to perform a process such as shot peening on the machined surface after machining. Shot peening is an excellent processing method that generates high residual compressive stress in the processed surface layer and improves surface strength by simultaneously performing work hardening, but it is necessary to perform secondary processing after cutting, Dedicated equipment is also required, so there is a disadvantage in terms of production efficiency. On the other hand, surface roughness is also important for fatigue strength. However, when shot peening is performed, dents may remain on the processed surface depending on the processing conditions, so that further surface finishing is required.

この問題を解決するため、特許文献1記載の技術にあっては切削工具自体に押圧部を設け、1つの工具で切削工具と押圧工具を兼用することで、加工工程の簡易化を達成している。
実開平6−11932号公報
In order to solve this problem, in the technique described in Patent Document 1, the cutting tool itself is provided with a pressing portion, and the cutting tool and the pressing tool are combined with one tool, thereby simplifying the machining process. Yes.
Japanese Utility Model Publication No. 6-11932

しかしながら上記従来技術にあっては、切削工程では押圧部と加工面とが接触しないため、切削面の押圧を行うためには、切削を行った後工具を移動させて押圧部と加工面を当接させ、押圧部を加工面に沿って順次移動させる必要がある。したがって、切削と押圧が別工程とならざるを得ず、加工時間の増大と工程増加による生産効率の低下を改善するには不十分である、という問題があった。   However, in the above prior art, since the pressing portion and the machining surface do not contact in the cutting process, in order to press the cutting surface, the tool is moved after cutting and the pressing portion and the machining surface are brought into contact with each other. It is necessary to move the pressing part sequentially along the processing surface. Therefore, cutting and pressing must be separate processes, and there is a problem that it is insufficient to improve the reduction in production efficiency due to an increase in processing time and an increase in processes.

本発明は、上記問題に着目してなされたもので、その目的とするところは、切削と押圧の両工程を同時に行い、加工時間を短縮した切削工具及び加工方法を提供することにある。   The present invention has been made paying attention to the above problems, and an object of the present invention is to provide a cutting tool and a processing method in which both the cutting and pressing steps are performed simultaneously to shorten the processing time.

上記目的を達成するため、本発明では、被切削部材と当接し、かつ相対運動することで切削を行う切刃と、切削により前記被切削部材に形成された切削加工面の押圧を行う押圧部とを有する切削工具において、前記押圧部は、前記切刃と同時に前記被切削部材に当接するよう設けられるとともに、前記切刃により前記被切削部材に形成される切削面を押圧することとした。   In order to achieve the above object, in the present invention, a cutting blade that performs cutting by abutting and moving relative to a member to be cut, and a pressing portion that presses a cutting surface formed on the member to be cut by cutting. The pressing portion is provided so as to contact the cutting member simultaneously with the cutting edge, and presses a cutting surface formed on the cutting member by the cutting edge.

よって、切削面を確実に押圧することで、切削と押圧の両工程を同時に行い、加工時間を短縮した切削工具及び加工方法を提供できる。   Therefore, by reliably pressing the cutting surface, it is possible to provide a cutting tool and a processing method in which both the cutting and pressing processes are performed simultaneously and the processing time is shortened.

以下、本発明の切削工具及び切削加工方法を実現する最良の形態を、図面に示す実施例に基づいて説明する。   Hereinafter, the best mode for realizing the cutting tool and the cutting method of the present invention will be described based on the embodiments shown in the drawings.

[概略斜視図]
実施例1につき図1ないし図6に基づき説明する。図1は、本願切削工具1を用いた切削加工の概略斜視図である。なお、切削工具1の軸方向であって固定器具2側をx軸正方向とする。また、x軸に直交し、切削工具1から被切削部材3へ向かう方向をy軸正方向、x、y軸と直交し図中上方向をz軸正方向とする。
[Schematic perspective view]
Example 1 will be described with reference to FIGS. FIG. 1 is a schematic perspective view of cutting using the present cutting tool 1. In addition, it is the axial direction of the cutting tool 1, Comprising: Let the fixing tool 2 side be the x-axis positive direction. Further, a direction orthogonal to the x axis and from the cutting tool 1 toward the member 3 to be cut is defined as a positive y-axis direction, and orthogonal to the x and y axes, and an upward direction in the drawing is defined as a positive z-axis direction.

実施例1の切削工具1は、固定された切削工具1を回転する被切削部材3に当接させて切削を行うタイプの工具とする。被切削部材3の回転により切削工具1と被切削部材3は相対運動を行い、この相対運動により切削が行われる。なお、切削工具1の送り運動方向はx軸負方向となる。   The cutting tool 1 according to the first embodiment is a type of tool that performs cutting by bringing the fixed cutting tool 1 into contact with a rotating member 3 to be rotated. The cutting tool 1 and the member to be cut 3 perform relative motion by the rotation of the member to be cut 3, and cutting is performed by this relative motion. Note that the feed movement direction of the cutting tool 1 is the negative x-axis direction.

また、実施例1では、被切削部材3としてベルト式無段変速機(CVT)のプーリを用いる。加工面はベルトを挟む円錐形状のシーブ面31であり、シーブ面31の傾斜角はαとする(図5参照)。固定された切削工具1に回転するプーリ3のシーブ面31を当接させることにより、シーブ面31の切削・押圧加工を行うものである。なお、被切削部材は円錐形状以外の形状であってもよく、特に限定しない。また、被切削部材が回転するものでなくともよい。   In the first embodiment, a pulley of a belt type continuously variable transmission (CVT) is used as the member 3 to be cut. The processed surface is a conical sheave surface 31 sandwiching the belt, and the inclination angle of the sheave surface 31 is α (see FIG. 5). The sheave surface 31 is cut and pressed by bringing the sheave surface 31 of the rotating pulley 3 into contact with the fixed cutting tool 1. The member to be cut may have a shape other than the conical shape, and is not particularly limited. Further, the member to be cut may not be rotated.

[z軸正方向正面図及びy軸正方向正面図]
図2は本願切削工具1のz軸正方向正面図、図3はy軸正方向正面図である。切削工具1は本体10、切刃100、押圧部200を有する。本体10はx軸負方向側端部のy軸負方向側が切り欠かれており、傾斜面11が形成される。この傾斜面11はz軸に対し平行かつx−z平面に対し角度α傾いて設けられ、シーブ面31の傾斜角と同一傾斜角となっている。
[Z-axis positive front view and y-axis positive front view]
2 is a front view of the cutting tool 1 in the z-axis positive direction, and FIG. 3 is a front view of the y-axis positive direction. The cutting tool 1 has a main body 10, a cutting edge 100, and a pressing portion 200. The main body 10 is notched on the y-axis negative direction side of the end on the x-axis negative direction side, and an inclined surface 11 is formed. The inclined surface 11 is provided parallel to the z-axis and inclined at an angle α with respect to the xz plane, and has the same inclination angle as that of the sheave surface 31.

切刃100は刃先110においてプーリ3の切削を行う。説明のため、傾斜面11の法線をξ軸正方向とする。切刃100は傾斜面11のz軸正方向側であって、刃先110を傾斜面11に対しξ軸正方向に突出させて設けられている。   The cutting edge 100 cuts the pulley 3 at the cutting edge 110. For explanation, the normal line of the inclined surface 11 is assumed to be the ξ axis positive direction. The cutting edge 100 is on the z axis positive direction side of the inclined surface 11, and the cutting edge 110 is provided to protrude in the ξ axis positive direction with respect to the inclined surface 11.

押圧部200は半球形凸部であり、被切削部材3よりも高い硬度を有する。また、切刃100のz軸負方向側において傾斜面11からξ軸正方向に突出させて設けられる。加工時には、この押圧部200の頂部210により切削面を押圧し、塑性変形させることで切削面の平滑化、加工硬化を行うとともに、切削加工面に圧縮残留応力を発生させる。生成される圧縮残留応力は、冷間加工の一種であるいわゆるショットピーニング加工と同等以上であるものとする。   The pressing part 200 is a hemispherical convex part and has a hardness higher than that of the member 3 to be cut. Further, the cutting edge 100 is provided so as to protrude in the positive ξ axis direction from the inclined surface 11 on the negative z axis direction side. At the time of processing, the top surface 210 of the pressing portion 200 is pressed against the cutting surface and plastically deformed to smooth the cutting surface and work harden, and generate a compressive residual stress on the cutting surface. It is assumed that the generated compressive residual stress is equal to or higher than that of so-called shot peening which is a kind of cold working.

切削工具1単体の状態では、押圧部200の頂部210は切刃100先端の刃先110よりもわずかにξ軸正方向に突出している。加工時にはプーリ3等の被切削部材と当接し、プーリ3等から受ける反力によってξ軸負方向に押し戻されることにより、押圧部200はξ軸に対し刃先110と同一高さに位置することとなる。   In the state of the cutting tool 1 alone, the top portion 210 of the pressing portion 200 slightly protrudes in the positive ξ axis direction from the cutting edge 110 at the tip of the cutting blade 100. At the time of processing, it comes into contact with a member to be cut such as the pulley 3 and is pushed back in the negative direction of the ξ axis by a reaction force received from the pulley 3 or the like, so that the pressing portion 200 is positioned at the same height as the cutting edge 110 with respect to the ξ axis. Become.

なお、この押圧部200は切削面を押圧して切削面の平滑化及び加工硬化を行える形状であれば半球形状でなくともよく、特に限定しない。また、本体10と一体であっても別体であってもよい。別体としたものは後述の実施例2で示す。   The pressing portion 200 is not limited to a hemispherical shape as long as the pressing surface 200 can press the cutting surface to smooth and work harden the cutting surface. Further, it may be integral with the main body 10 or separate. A separate body is shown in Example 2 described later.

[傾斜面正面図]
図4は、傾斜面11のξ軸正方向正面図である。円弧状矢印はプーリ3と刃先110との当接部分が形成する切削加工面の軌跡L1である。本体10の根元部分は省略する。上述のように、切削時には回転するプーリ3と固定された切削工具1の切刃刃先110が当接し、プーリ3と刃先110との相対運動により切削が行われる。また、押圧部200は切刃100のz軸負方向側に設けられ、押圧部200の頂部210は加工面と当接して押圧を行う。
[Inclined front view]
FIG. 4 is a front view of the inclined surface 11 in the positive direction of the ξ axis. The arcuate arrow is the locus L1 of the cut surface formed by the contact portion between the pulley 3 and the blade edge 110. The base part of the main body 10 is omitted. As described above, at the time of cutting, the rotating pulley 3 and the cutting blade edge 110 of the fixed cutting tool 1 come into contact with each other, and cutting is performed by relative movement between the pulley 3 and the blade edge 110. Moreover, the pressing part 200 is provided in the z-axis negative direction side of the cutting edge 100, and the top part 210 of the pressing part 200 abuts on the processing surface to perform pressing.

ここで、切削面の押圧を確実に行うため、頂部210は刃先110よりもx軸正方向側(切削工具1の送り運動方向と反対側)に位置するよう設けられる。すなわち、頂部210は、軌跡L1上、あるいは軌跡L1よりもx軸正方向側の既切削領域に位置し、切削工具1とプーリ3の相対運動によって形成された切削加工面をなぞることとなる。この軌跡L1は、プーリ3の回転と切削の送り運動によって規定される螺旋状の曲線であり、頂部210は常時この螺旋状軌跡L1上、あるいは軌跡L1よりもx軸正方向側に位置することとなる。   Here, in order to reliably press the cutting surface, the top portion 210 is provided so as to be positioned on the x-axis positive direction side (the opposite side to the feed movement direction of the cutting tool 1) from the cutting edge 110. That is, the top 210 is located on the locus L1 or in the already-cut region on the x-axis positive direction side with respect to the locus L1, and traces the cutting surface formed by the relative motion of the cutting tool 1 and the pulley 3. The locus L1 is a spiral curve defined by the rotation of the pulley 3 and the cutting feed motion, and the top 210 is always located on the spiral locus L1 or on the positive side in the x-axis direction relative to the locus L1. It becomes.

[CVTプーリの切削加工]
図5は本願切削工具1を用いてプーリ3のシーブ面31を切削加工する際のz軸方向正面図、図6はy軸負方向正面図である。
[CVT pulley cutting]
FIG. 5 is a front view in the z-axis direction when cutting the sheave surface 31 of the pulley 3 using the present cutting tool 1, and FIG. 6 is a front view in the negative y-axis direction.

(切削工程)
切削工程は、切刃100の刃先110をプーリ3のシーブ面31に当接させ、プーリ3を回転させることで行われる。切刃100によるシーブ面31の切削ポイントをA(図6参照)とすると、切削工具1とプーリ3との相対運動により、切削ポイントAはこの相対運動と同一方向の軌跡L1を形成する(図6における破線矢印)。切削工具1はx軸負方向へ送り運動されるため、プーリ3のシーブ面31は、この軌跡L1上、あるいは軌跡L1を挟んで既切削面と未切削面に分かれ、押圧部200によって押圧される押圧ポイントB(図6参照)は、常時既切削領域内に存在する。
(Cutting process)
The cutting process is performed by bringing the cutting edge 110 of the cutting edge 100 into contact with the sheave surface 31 of the pulley 3 and rotating the pulley 3. Assuming that the cutting point of the sheave surface 31 by the cutting edge 100 is A (see FIG. 6), the cutting point A forms a locus L1 in the same direction as this relative movement due to the relative movement of the cutting tool 1 and the pulley 3 (see FIG. 6). (Dashed line arrow in 6). Since the cutting tool 1 is moved in the negative direction of the x-axis, the sheave surface 31 of the pulley 3 is divided into an already-cut surface and an uncut surface on the locus L1 or across the locus L1, and is pressed by the pressing portion 200. The pressing point B (see FIG. 6) always exists in the already cut area.

(押圧工程)
押圧工程は、頂部210をシーブ面31の切削加工面に当接させたままプーリ3を回転させ、切削加工面を順次押圧することで行われる。当接させて回転させる点は切削工程と同様であるが、押圧工程では一定の力をもって切削加工面を押圧し、切削加工面の平滑化及び加工硬化を行うとともに、切削加工面の表面に圧縮残留応力を生成させる。
押圧部200によるシーブ面31の押圧ポイントをBとすると、切削工具1とプーリ3との相対運動により、押圧ポイントBはこの相対運動と同一方向の軌跡L2を形成する(図6における太線矢印)。
(Pressing process)
The pressing step is performed by rotating the pulley 3 while keeping the top portion 210 in contact with the cutting surface of the sheave surface 31 and sequentially pressing the cutting surface. The point of contact and rotation is the same as in the cutting process, but in the pressing process, the cutting surface is pressed with a constant force to smooth and harden the cutting surface and to compress the surface of the cutting surface. Residual stress is generated.
Assuming that the pressing point of the sheave surface 31 by the pressing portion 200 is B, the pressing point B forms a locus L2 in the same direction as the relative movement due to the relative movement of the cutting tool 1 and the pulley 3 (thick arrow in FIG. 6). .

(切削ポイントと押圧ポイントとの位置関係)
上述のように、切削、押圧の両工程は、ともに切削工具1とプーリ3との相対運動により行われるため、この相対運動によって切削ポイントA、押圧ポイントBがそれぞれ形成する軌跡L1,L2は、ともにこの相対運動と同一方向となる。
(Positional relationship between cutting point and pressing point)
As described above, both the cutting and pressing processes are performed by the relative movement of the cutting tool 1 and the pulley 3, and the trajectories L1 and L2 formed by the cutting point A and the pressing point B by the relative movement are as follows. Both are in the same direction as this relative motion.

ここで、押圧部200の頂部210は常時既切削領域内に存在して切削加工面を押圧するため、切削工具1とプーリ3との相対運動によって切削加工面は順次押圧される。これにより、切削と同時に切削加工面の平滑化、加工硬化、及び圧縮残留応力の生成が行われ、回転するプーリ3に切削工具1を当接させて切削を行えば、切削工程と同時に押圧工程も行われることとなる。   Here, since the top part 210 of the pressing part 200 always exists in the already-cut region and presses the cutting surface, the cutting surface is sequentially pressed by the relative movement of the cutting tool 1 and the pulley 3. As a result, the cutting surface is smoothed at the same time as cutting, work hardening, and compression residual stress is generated. If the cutting tool 1 is brought into contact with the rotating pulley 3 to perform cutting, the pressing process is performed simultaneously with the cutting process. Will also be performed.

[従来例と本願実施例1における作用効果の対比]
従来の切削工具では、切削工程では押圧部と加工面とが接触しないため、工具に切刃と押圧部の双方を設けていたとしても切削と押圧が別工程とならざるを得ず、加工時間が長くなる。そのため、1つの工具で切削と押圧の2工程を行うメリットに乏しい、という問題があった。
[Contrast of effects of conventional example and first embodiment]
In a conventional cutting tool, since the pressing part and the processing surface do not contact in the cutting process, even if both the cutting edge and the pressing part are provided in the tool, the cutting and pressing must be separate processes, and the processing time Becomes longer. Therefore, there is a problem that the merit of performing two steps of cutting and pressing with one tool is poor.

これに対し本願実施例1では、押圧部200は、切刃100と同時にプーリ3に当接するよう設けられるとともに、切刃100によりプーリ3に形成される切削面を押圧することとした。これにより、押圧部200の頂部210は常時シーブ面31上の既切削領域内に存在して切削加工面を押圧するため、切削工具1とプーリ3との相対運動によって切削加工面は順次押圧される。よって、切削時におけるプーリ3と切削工具1との相対運動によって切削と押圧の両工程を同時に行うことが可能となり、加工時間を短縮することができる。   On the other hand, in the first embodiment of the present application, the pressing portion 200 is provided so as to contact the pulley 3 simultaneously with the cutting edge 100 and presses the cutting surface formed on the pulley 3 by the cutting edge 100. Thereby, since the top part 210 of the pressing part 200 always exists in the already cut region on the sheave surface 31 and presses the cutting surface, the cutting surface is sequentially pressed by the relative movement of the cutting tool 1 and the pulley 3. The Therefore, both the cutting and pressing steps can be performed simultaneously by the relative motion of the pulley 3 and the cutting tool 1 during cutting, and the processing time can be shortened.

実施例2につき図7ないし図9に基づき説明する。基本的な構成は実施例1と同様であるため異なる点についてのみ説明する。実施例1の押圧部200は本体10と一体であったが、実施例2では押圧部200aを本体10と別体とし、カートリッジ形式で本体10に対し着脱可能に設ける点で実施例1と異なる。   A second embodiment will be described with reference to FIGS. Since the basic configuration is the same as that of the first embodiment, only different points will be described. The pressing portion 200 of the first embodiment is integrated with the main body 10, but in the second embodiment, the pressing portion 200a is separated from the main body 10 and is different from the first embodiment in that the pressing portion 200a is detachably attached to the main body 10 in a cartridge form. .

図7は実施例2における切削工具1のz軸正方向正面図、図8はy軸正方向正面図である。また、図9は傾斜面11のξ軸正方向正面図である。実施例2においては押圧部200aはカートリッジ20aに設けられる。本体10の傾斜面11にはカートリッジ収容部12aが設けられ、このカートリッジ20aをカートリッジ収容部12aに配設することで本体10に対し着脱可能に設ける。実施例2ではネジ21aを用いて配設しているが、他の方法で配設してもよい。   7 is a front view in the z-axis positive direction of the cutting tool 1 according to the second embodiment, and FIG. 8 is a front view in the y-axis positive direction. FIG. 9 is a front view of the inclined surface 11 in the positive direction of the ξ axis. In the second embodiment, the pressing portion 200a is provided on the cartridge 20a. A cartridge housing portion 12a is provided on the inclined surface 11 of the main body 10, and the cartridge 20a is provided in the cartridge housing portion 12a so as to be detachable from the main body 10. Although the screw 21a is used in the second embodiment, the screw 21a may be used.

実施例1と同様、実施例2においても押圧部200aの頂部210aは軌跡L1上、あるいは軌跡L1よりもx軸正方向側に位置するよう設けられ、頂部210aは既切削領域内に存在して切削加工面を押圧することとなる。これにより、実施例1と同様、切削と押圧の両工程を同時に行う。   Similar to the first embodiment, in the second embodiment, the top portion 210a of the pressing portion 200a is provided on the locus L1 or on the x-axis positive direction side with respect to the locus L1, and the top portion 210a exists in the already-cut region. The cut surface will be pressed. Thereby, as in Example 1, both cutting and pressing steps are performed simultaneously.

また、押圧工程では加工表面の平滑化、加工硬化を行うとともに圧縮残留応力を発生させるため、押圧部200aは加工表面を一定以上の力で押圧しながら軌跡L1をなぞる必要がある。ここで、加工に伴って押圧部200aは摩耗するため、摩耗量が大きくなると被切削部材(プーリ3のシーブ面31)との接触面積が増大して面圧が低下し、切削加工面の平滑化及び加工硬化が不十分となるおそれがある。   Further, in the pressing step, the processed surface is smoothed, processed and hardened, and a compressive residual stress is generated. Therefore, the pressing portion 200a needs to trace the locus L1 while pressing the processed surface with a force of a certain level or more. Here, since the pressing part 200a wears with processing, when the amount of wear increases, the contact area with the member to be cut (the sheave surface 31 of the pulley 3) increases, the surface pressure decreases, and the cutting surface becomes smooth. There is a risk that conversion and work hardening will be insufficient.

ここで、実施例1のように本体10と押圧部200を一体とした場合、押圧部200が摩耗した際には本体10自体を新品と交換する必要があるが、実施例2では、押圧部200aをカートリッジ20aに設け、本体10に対し着脱可能とした。   Here, when the main body 10 and the pressing portion 200 are integrated as in the first embodiment, when the pressing portion 200 is worn, it is necessary to replace the main body 10 itself with a new one. 200 a is provided in the cartridge 20 a and is detachable from the main body 10.

これにより、カートリッジ20aを交換するのみで押圧部200aを新品と交換することが可能となり、押圧部200aの摩耗が許容量に達した際、本体10全てを交換することなくカートリッジ20aのみの交換によって押圧部200aの交換を達成することで、実施例1の作用効果に加え、コスト低減を見込むことができる。   Accordingly, it is possible to replace the pressing portion 200a with a new one only by replacing the cartridge 20a. When the wear of the pressing portion 200a reaches an allowable amount, it is possible to replace only the cartridge 20a without replacing the entire main body 10. By achieving the replacement of the pressing portion 200a, cost reduction can be expected in addition to the effects of the first embodiment.

また、カートリッジ形式であるため着脱も容易であり、工数低減も見込める。なお、実施例2では押圧部200aをカートリッジ20aに設けたが、カートリッジ形式とせず、本体10に対し押圧部200aを直接着脱可能とする構成であってもよい。   In addition, since it is a cartridge type, it can be easily attached and detached, and man-hours can be reduced. In the second embodiment, the pressing portion 200a is provided in the cartridge 20a. However, a configuration in which the pressing portion 200a can be directly attached to and detached from the main body 10 without using a cartridge type may be employed.

実施例3につき図10ないし図15に基づき説明する。基本構成は実施例1と同様である。実施例1では切刃100及び押圧部200は本体10に固定され、互いに位置変更は不可能であった。これに対し実施例3では、被切削部材(プーリ3)の形状に合わせて切刃100と押圧部200bの相対位置を変更可能とした点で実施例1と異なる。   A third embodiment will be described with reference to FIGS. The basic configuration is the same as that of the first embodiment. In the first embodiment, the cutting edge 100 and the pressing portion 200 are fixed to the main body 10 and their positions cannot be changed. In contrast, the third embodiment is different from the first embodiment in that the relative position of the cutting blade 100 and the pressing portion 200b can be changed in accordance with the shape of the member to be cut (pulley 3).

図10は切削工具1のz軸正方向正面図、図11はy軸正方向正面図である。また、図12は図10のI−I断面図である。切刃100のz軸負方向側には中ぐり部12bが設けられ、この中ぐり部12bに本体10とは別体の台座20bが回動可能に配設される。   FIG. 10 is a front view of the cutting tool 1 in the z-axis positive direction, and FIG. 11 is a front view of the y-axis positive direction. 12 is a cross-sectional view taken along the line II of FIG. A boring part 12b is provided on the negative z-axis direction side of the cutting edge 100, and a pedestal 20b separate from the main body 10 is rotatably disposed on the boring part 12b.

台座20bの断面は略台形であり、ξ軸正方向側の斜面21bに押圧部200bを有する。また、台座20bはξ−z平面内を回動し、回転中心は中ぐり部12bのz軸正方向側開口部14bとなる。この台座20bの回動に伴って押圧部200bもξ−z平面内を回動し、これにより切刃刃先110と押圧部200bとの相対位置が変更される。   The cross section of the pedestal 20b is substantially trapezoidal, and has a pressing portion 200b on the slope 21b on the ξ-axis positive direction side. The pedestal 20b rotates in the ξ-z plane, and the center of rotation is the z-axis positive direction opening 14b of the boring part 12b. Along with the rotation of the pedestal 20b, the pressing portion 200b also rotates in the ξ-z plane, whereby the relative position between the cutting blade edge 110 and the pressing portion 200b is changed.

図13は傾斜面11のξ軸正方向正面図である。実施例1と同様、実施例3においても押圧部200bの頂部210bはシーブ面31において軌跡L1上、あるいは軌跡L1よりもx軸正方向側に設けられ、常時既切削領域内に位置して切削加工面を押圧することとなる。   FIG. 13 is a front view of the inclined surface 11 in the positive ξ axis direction. Similar to the first embodiment, in the third embodiment, the top portion 210b of the pressing portion 200b is provided on the locus L1 on the sheave surface 31 or on the x-axis positive direction side with respect to the locus L1, and is always located in the already-cut region. The processed surface will be pressed.

ここで、実施例3では台座20bの回動に伴って切刃刃先110と押圧部200bとの相対位置が変更されるが、押圧ポイントBが既切削領域から外れてしまうと切削加工面を押圧することができない。したがって、押圧ポイントBが切削加工面を確実に押圧することができるよう、押圧部200bの位置は既切削領域内で変更されることとする。   Here, in Example 3, the relative position of the cutting blade edge 110 and the pressing portion 200b is changed with the rotation of the pedestal 20b, but when the pressing point B deviates from the already cut area, the cutting surface is pressed. Can not do it. Therefore, the position of the pressing portion 200b is changed within the already cut region so that the pressing point B can surely press the cutting surface.

図14は切削工具1のI−I断面であり、被切削部材の曲率と、切刃100と押圧部200bとの相対位置の関係を示す図である。加工対象として第1、第2被切削部材3a,3bを想定し、それぞれの曲率をr,Rとする(r<R)。なお、第1被切削部材3aの切削時における台座20bの位置を実線で、第2被切削部材3b切削時における台座20bの位置を破線で示す。   FIG. 14 is a cross-sectional view taken along the line II of the cutting tool 1 and shows the relationship between the curvature of the member to be cut and the relative position between the cutting edge 100 and the pressing portion 200b. The first and second members to be cut 3a and 3b are assumed to be processed, and the respective curvatures are assumed to be r and R (r <R). In addition, the position of the base 20b at the time of cutting of the 1st to-be-cut member 3a is shown as a continuous line, and the position of the base 20b at the time of the 2nd to-be-cut member 3b is shown by a broken line.

第1、第2被切削部材3a,3bはそれぞれ曲率が異なるため、切削対象を第1被切削部材3aから第2被切削部材3bに変更する際、切刃100と押圧部200bとの相対位置を変更しなければ切削を行うことができない。したがって、実施例1のように押圧部が本体10と一体に形成されている場合、被切削部材の曲率に合わせて切削工具1を交換する必要があり、煩雑であった。   Since the first and second workpieces 3a and 3b have different curvatures, the relative position between the cutting edge 100 and the pressing portion 200b when the cutting target is changed from the first workpiece 3a to the second workpiece 3b. If it is not changed, cutting cannot be performed. Therefore, when the pressing part is formed integrally with the main body 10 as in the first embodiment, it is necessary to replace the cutting tool 1 in accordance with the curvature of the member to be cut, which is complicated.

これに対し実施例3では台座20bをξ−z平面内で回動可能としているため、回動によって押圧部200bも位置変更が可能である。よって、加工対象の変更によって被切削部材の曲率が変わったとしても、切刃100と押圧部200bとの相対位置を適宜変更することで、切削工具自体を変更することなく加工を行うことができる。1つの切削工具1で曲率の異なる複数の被切削部材に対応できるため、実施例1と同様の作用効果を得つつ、工数低減を見込むことができる。   On the other hand, in the third embodiment, since the pedestal 20b can be rotated in the ξ-z plane, the position of the pressing portion 200b can also be changed by the rotation. Therefore, even if the curvature of the member to be cut changes due to the change of the processing target, it is possible to perform the processing without changing the cutting tool itself by appropriately changing the relative position between the cutting edge 100 and the pressing portion 200b. . Since one cutting tool 1 can deal with a plurality of workpieces having different curvatures, it is possible to expect a reduction in man-hours while obtaining the same effects as those of the first embodiment.

[実施例3変形例]
図15は、実施例3の変形例を示す図である。実施例3変形例では、押圧部200b'として先端が半球状の軸部材を用いる。押圧部200b'の軸をξ軸と平行に設け、この押圧部200b'をξ軸方向移動可能に本体10に収装する。
[Modification of Example 3]
FIG. 15 is a diagram illustrating a modification of the third embodiment. In the third embodiment, a shaft member having a hemispherical tip is used as the pressing portion 200b ′. The axis of the pressing portion 200b ′ is provided in parallel with the ξ axis, and the pressing portion 200b ′ is accommodated in the main body 10 so as to be movable in the ξ axis direction.

被切削部材の曲率に合わせ適宜押圧部200b'をξ軸方向移動させることにより、実施例3と同様の作用効果が得られる。なお、刃先110と押圧部200bの相対位置を軌跡L1上で変更可能な例であれば他の方法でもよい。   By appropriately moving the pressing portion 200b ′ in the ξ-axis direction according to the curvature of the member to be cut, the same effects as those of the third embodiment can be obtained. Any other method may be used as long as the relative position between the blade edge 110 and the pressing portion 200b can be changed on the locus L1.

実施例4につき図16ないし図18に基づき説明する。基本構成は実施例1と同様である。実施例1では押圧部200は本体10と一体であったが、実施例4では押圧部200cと本体10を別体とし、押圧部200cを被切削部材(プーリ3)に付勢するバネ300を設け、このバネ300の付勢力を変更可能とした点で実施例1と異なる。   A fourth embodiment will be described with reference to FIGS. The basic configuration is the same as that of the first embodiment. In the first embodiment, the pressing portion 200 is integrated with the main body 10, but in the fourth embodiment, the pressing portion 200c and the main body 10 are separated from each other, and the spring 300 that urges the pressing portion 200c against the member to be cut (pulley 3) is provided. This is different from the first embodiment in that the biasing force of the spring 300 can be changed.

図16は、実施例4における切削工具1のz軸正方向正面図、図17はy軸正方向正面図である。また、図18は図16のII−II断面図である。本体10には押圧部挿入孔12cが設けられ、押圧部200cが挿入される。   16 is a front view in the z-axis positive direction of the cutting tool 1 according to the fourth embodiment, and FIG. 17 is a front view in the y-axis positive direction. 18 is a cross-sectional view taken along the line II-II in FIG. The main body 10 is provided with a pressing portion insertion hole 12c, and the pressing portion 200c is inserted therein.

実施例1と同様、実施例4においても押圧部200cの頂部210cはシーブ面31において軌跡L1上、あるいは軌跡L1よりもx軸正方向側に設けられ、常時既切削領域内に位置して切削加工面を押圧することとなる。これにより、実施例1と同様、切削と押圧の両工程を同時に行う。   Similar to the first embodiment, also in the fourth embodiment, the top portion 210c of the pressing portion 200c is provided on the locus L1 on the sheave surface 31 or on the x-axis positive direction side with respect to the locus L1, and is always located in the already-cut region. The processed surface will be pressed. Thereby, as in Example 1, both cutting and pressing steps are performed simultaneously.

実施例4の押圧部200cはξ軸正方向側端部を球形の頂部210cとする弾丸形状部材であり、ξ軸負方向面220cには突出部230cが設けられている。この突出部230cは押圧部200cの最外径部240cよりも小径に設けられている。また、突出部230cにはバネ300が挿入され、ξ軸負方向面220cに当接してξ軸正方向を係止される。   The pressing portion 200c of the fourth embodiment is a bullet-shaped member having a spherical top portion 210c at the end on the ξ-axis positive direction side, and a protruding portion 230c is provided on the ξ-axis negative direction surface 220c. The protruding portion 230c is provided with a smaller diameter than the outermost diameter portion 240c of the pressing portion 200c. Further, a spring 300 is inserted into the projecting portion 230c and is brought into contact with the ξ-axis negative direction surface 220c to be locked in the ξ-axis positive direction.

また、突出部230cはこのバネ300を介してドーナツ状のストッパ250cに挿入され、バネ300はξ軸負方向側においてストッパ250cと当接する。このストッパ250cは押圧部挿入孔12c内においてξ軸方向摺動可能に設けられている。なお、実施例4ではバネ300として皿バネを用いるが、コイルバネであってもよく特に限定しない。   The protrusion 230c is inserted into the donut-shaped stopper 250c via the spring 300, and the spring 300 contacts the stopper 250c on the ξ axis negative direction side. The stopper 250c is provided so as to be slidable in the ξ-axis direction in the pressing portion insertion hole 12c. In the fourth embodiment, a disc spring is used as the spring 300, but it may be a coil spring and is not particularly limited.

ストッパ250cのξ軸負方向側にはネジ260cが設けられている。このネジ260cはξ軸負方向側から押圧部挿入孔12cに締め込まれ、ストッパ250cをξ軸負方向から係止する。したがってバネ300はξ軸負方向側をストッパ250cにより係止され、バネ300は押圧部200cをξ軸正方向に付勢する。これにより、押圧部200cはバネ300の弾性力によりプーリ3(被切削部材)に押圧され、プーリ3におけるシーブ面31の平滑化、加工硬化及び圧縮残留応力の生成を行う。   A screw 260c is provided on the ξ axis negative direction side of the stopper 250c. The screw 260c is tightened into the pressing portion insertion hole 12c from the ξ axis negative direction side to lock the stopper 250c from the ξ axis negative direction. Therefore, the spring 300 is locked on the negative side of the ξ axis by the stopper 250c, and the spring 300 biases the pressing portion 200c in the positive direction of the ξ axis. Thus, the pressing portion 200c is pressed against the pulley 3 (member to be cut) by the elastic force of the spring 300, and the sheave surface 31 of the pulley 3 is smoothed, work-hardened, and compressed residual stress is generated.

したがって、被切削部材3は常にバネ300の弾性力により押圧されるため、押圧力を常時一定に保つことができる。実施例1のように押圧部200と本体10が固定されている場合、押圧力は被切削部材3に対する切削工具1の切り込み量によって決定されるが、実施例4では切り込み量によらず安定した押圧力を得ることが可能であり、実施例1の作用効果に加え、より安定した押圧工程を達成できる。   Therefore, since the member 3 to be cut is always pressed by the elastic force of the spring 300, the pressing force can always be kept constant. When the pressing portion 200 and the main body 10 are fixed as in the first embodiment, the pressing force is determined by the cutting amount of the cutting tool 1 with respect to the member 3 to be cut, but in the fourth embodiment, the pressing force is stable regardless of the cutting amount. A pressing force can be obtained, and in addition to the effects of the first embodiment, a more stable pressing process can be achieved.

ここで、ネジ260cを更に締め込んだ場合、ネジ260cはξ軸正方向に移動してストッパ250cも正方向に移動する。一方、押圧部200cはプーリ3に当接するためξ軸正方向に移動しないため、ストッパ250cと押圧部200cに係止されたバネ300は収縮し、押圧部200への付勢力が増大し、プーリ3への押圧力も増大する。   Here, when the screw 260c is further tightened, the screw 260c moves in the positive ξ axis direction, and the stopper 250c also moves in the positive direction. On the other hand, since the pressing portion 200c abuts on the pulley 3 and does not move in the positive ξ axis direction, the spring 300 locked to the stopper 250c and the pressing portion 200c contracts, and the urging force to the pressing portion 200 increases, and the pulley The pressing force to 3 also increases.

このように、ネジ260cの締め込み量を変えることにより、被切削部材3(プーリ3)への押圧力を適宜変更し、実施例1の作用効果に加え、被切削部材3の材質に合わせて最適な押圧力を得ることができる。   In this way, by changing the tightening amount of the screw 260c, the pressing force to the member to be cut 3 (pulley 3) is changed as appropriate, and in addition to the function and effect of the first embodiment, it is matched to the material of the member to be cut 3 Optimal pressing force can be obtained.

実施例5につき図19ないし図28に基づき説明する。基本構成は実施例1と同様である。実施例5では押圧部200dを本体10と別体とし、さらに押圧部200dを円柱状のローラとして本体10に対し独立に回転させる点で実施例1と異なる。   A fifth embodiment will be described with reference to FIGS. The basic configuration is the same as that of the first embodiment. The fifth embodiment is different from the first embodiment in that the pressing portion 200d is separated from the main body 10 and the pressing portion 200d is rotated as a columnar roller independently with respect to the main body 10.

図19は実施例5における切削工具1のz軸正方向正面図、図20はy軸正方向正面図である。本体10には押圧部挿入孔12dが設けられ、円柱状の押圧部200dが回転可能に挿入されてキャップ13dにより閉塞される。   FIG. 19 is a front view in the z-axis positive direction of the cutting tool 1 according to the fifth embodiment, and FIG. 20 is a front view in the y-axis positive direction. The main body 10 is provided with a pressing portion insertion hole 12d, and a columnar pressing portion 200d is rotatably inserted and closed by a cap 13d.

図21は図19のIV−IV断面図、図22は図20のV−V断面図である。なお、ξ軸及びz軸に直交する軸をη軸と定義する。また、図21、図22では押圧部200dのみ正面図を示す。   21 is a sectional view taken along line IV-IV in FIG. 19, and FIG. 22 is a sectional view taken along line VV in FIG. An axis orthogonal to the ξ axis and the z axis is defined as the η axis. In FIGS. 21 and 22, only the pressing portion 200d is shown as a front view.

押圧部200dは押圧を行うローラ部210d及びローラ軸220dから形成され、ξ軸負方向から押圧部挿入孔12dへ挿入される。押圧部200dの軸線はη軸と平行である。ここで、押圧部挿入孔12dのξ軸正方向側開口部14dのη軸方向幅は、ローラ軸220dの軸長よりも小さく、かつローラ部210dの軸長よりも大きく設けられ、段部15を形成する。また、ξ軸正方向側開口部14からはローラ部210dの一部のみが露出する。   The pressing part 200d is formed of a roller part 210d that performs pressing and a roller shaft 220d, and is inserted into the pressing part insertion hole 12d from the negative direction of the ξ axis. The axis of the pressing part 200d is parallel to the η axis. Here, the width of the pressing portion insertion hole 12d in the ξ-axis positive direction side opening portion 14d is smaller than the axial length of the roller shaft 220d and larger than the axial length of the roller portion 210d. Form. Further, only a part of the roller portion 210d is exposed from the ξ axis positive direction side opening portion 14.

ローラ軸220dは軸受240dを介して保持部材250dに支持される。この保持部材250dの外周は、押圧部挿入孔12dの内径と同一形状に設けられている。また、保持部材250dは中央部において2分割されたη軸方向対称形状であり、η軸正、負両方向から押圧部200dを挟持する。さらに、保持部材250dのξ軸正方向端部は押圧部挿入孔12dの段部15に当接し、ξ軸負方向端部はキャップ13dに当接することで、保持部材250dは押圧部挿入孔12c内で移動を拘束される。   The roller shaft 220d is supported by the holding member 250d through a bearing 240d. The outer periphery of the holding member 250d is provided in the same shape as the inner diameter of the pressing portion insertion hole 12d. Further, the holding member 250d has a symmetrical shape divided in two in the central portion in the η axis direction, and sandwiches the pressing portion 200d from both the positive and negative directions of the η axis. Furthermore, the ξ-axis positive direction end of the holding member 250d abuts on the step 15 of the pressing portion insertion hole 12d, and the ξ-axis negative direction end of the holding member 250d contacts the cap 13d, so that the holding member 250d becomes the pressing portion insertion hole 12c. The movement is restrained within.

図23は傾斜面11のξ軸正方向側正面図、図24は切削工具1のIII−III断面図である。実施例5においても押圧を行うローラ部210dはシーブ面31において軌跡L1上、あるいは軌跡L1よりもx軸正方向側に設けられ、常時既切削領域内に位置して切削加工面を押圧することとなる。これにより、実施例1と同様、切削と押圧の両工程を同時に行う。   23 is a front view of the inclined surface 11 on the positive side of the ξ axis, and FIG. 24 is a cross-sectional view of the cutting tool 1 taken along the line III-III. Also in the fifth embodiment, the roller portion 210d that performs pressing is provided on the locus L1 on the sheave surface 31 or on the x-axis positive direction side with respect to the locus L1, and is always located in the already-cut region and presses the cutting surface. It becomes. Thereby, as in Example 1, both cutting and pressing steps are performed simultaneously.

また、ローラ部210dは本体10に対し回転可能に設けられているため、プーリ3の回転に伴ってローラ部210dも相対運動と反対方向に回転する。これにより、実施例1の作用効果に加え、押圧部200dとシーブ面31との摩擦抵抗を低減して押圧工程をスムーズに行うことができる。   In addition, since the roller part 210d is provided so as to be rotatable with respect to the main body 10, the roller part 210d also rotates in the direction opposite to the relative movement as the pulley 3 rotates. Thereby, in addition to the effect of Example 1, the friction resistance of the press part 200d and the sheave surface 31 can be reduced, and a press process can be performed smoothly.

[被切削部材の形状と押圧部の接触状態の関係]
(円錐形状の場合)
図25、図26は、円錐形状のプーリ3と円筒状のローラ部210dとの接触状態を示す模式図である。なお、ローラ部210dの軸線をM1、プーリ3の母線(円錐を展開した際の扇形半径)をM2、プーリ3の軸線をM3とする。さらに、図25ではM1とM3が同一平面上にある場合、図26では同一平面上にない場合を示す。
[Relationship between shape of member to be cut and contact state of pressing part]
(Conical shape)
25 and 26 are schematic views showing a contact state between the conical pulley 3 and the cylindrical roller portion 210d. Note that the axis of the roller portion 210d is M1, the generatrix of the pulley 3 (fan radius when the cone is unfolded) is M2, and the axis of the pulley 3 is M3. Further, FIG. 25 shows a case where M1 and M3 are on the same plane, and FIG. 26 shows a case where they are not on the same plane.

ローラ部210dは単純円筒形であり、プーリ3は円錐形状である。したがって、ローラ軸220dの軸線M1の方向と、ローラ部210dとの接触位置におけるプーリ3の母線M2の方向が一致した場合、ローラ部210dはη軸方向幅全域にわたってシーブ面31と線接触し、シーブ面31における未切削領域とローラ部210dが干渉するおそれがある。   The roller part 210d has a simple cylindrical shape, and the pulley 3 has a conical shape. Therefore, when the direction of the axis M1 of the roller shaft 220d and the direction of the bus M2 of the pulley 3 at the contact position with the roller portion 210d coincide, the roller portion 210d is in line contact with the sheave surface 31 over the entire width in the η-axis direction, There is a possibility that the uncut region on the sheave surface 31 and the roller portion 210d interfere with each other.

この干渉を回避するためには、ローラ部210dはシーブ面31の既切削領域において点接触することとすればよい。そのためには、ローラ部210dがシーブ面31を押圧する押圧ポイントBが既切削領域内に存在し、かつローラ軸220dの軸線M1とプーリ3の母線M2とが一致しない、すなわちM1とM2が傾斜する必要がある。   In order to avoid this interference, the roller portion 210d may be point-contacted in the already cut area of the sheave surface 31. For this purpose, the pressing point B at which the roller portion 210d presses the sheave surface 31 exists in the already-cut region, and the axis M1 of the roller shaft 220d and the bus M2 of the pulley 3 do not coincide, that is, M1 and M2 are inclined. There is a need to.

プーリ3は円錐形状である以上、プーリ3の母線M2はプーリ回転軸M3と必然的に交差する。すなわち、ローラ軸線M1とプーリ3の母線M2の方向が一致しない場合とは、ローラ軸線M1とプーリ回転軸線M3とが交わらない、つまりM1とM3とが同一平面上に存在しないことと同義である。   Since the pulley 3 has a conical shape, the bus M2 of the pulley 3 inevitably intersects with the pulley rotation axis M3. That is, the case where the roller axis M1 and the direction of the generatrix M2 of the pulley 3 do not coincide is synonymous with the fact that the roller axis M1 and the pulley rotation axis M3 do not intersect, that is, M1 and M3 do not exist on the same plane. .

したがって実施例5では、ローラ軸線M1と、プーリ回転軸線M3とが同一平面上に存在しないよう設けることとする。これにより、ローラ部210dが単純円筒形状であっても、シーブ面31と点接触させることが可能となり、シーブ面31における未切削領域とローラ部210dの干渉を回避することができる。よって、ローラ部210dの形状を単純化し、コスト低減を図ることができる。   Therefore, in Example 5, the roller axis M1 and the pulley rotation axis M3 are provided so as not to exist on the same plane. As a result, even if the roller portion 210d has a simple cylindrical shape, it is possible to make point contact with the sheave surface 31 and to avoid interference between the uncut region on the sheave surface 31 and the roller portion 210d. Therefore, the shape of the roller part 210d can be simplified and the cost can be reduced.

(軸形状の場合)
図27は、被切削部材3を軸形状部材とした場合の模式図である。被切削部材が軸形状部材である場合であっても、ローラ部210dの回転軸M1と被切削部材の回転軸線M3とが同一平面上に存在する場合、ローラ部210dはη軸方向幅全域にわたってシーブ面31と当接してしまう。そのためシーブ面31における未切削領域とローラ部210dが干渉するおそれがある。
(In case of shaft shape)
FIG. 27 is a schematic view when the member 3 to be cut is an axial member. Even when the member to be cut is a shaft-shaped member, when the rotation axis M1 of the roller portion 210d and the rotation axis M3 of the member to be cut are on the same plane, the roller portion 210d extends over the entire width in the η-axis direction. It will contact the sheave surface 31. Therefore, there is a possibility that the uncut region on the sheave surface 31 and the roller portion 210d interfere with each other.

したがって、プーリ3を加工する場合と同様、被切削部材を軸形状とする場合であっても、ローラ部210dの軸線M1と被切削部材の回転軸M3とが同一平面上に存在しないよう設けることにより、ローラ部210dの中央部分のみでシーブ面31に当接させ、未切削領域とローラ部210dとの干渉を回避することができる。   Therefore, as in the case of processing the pulley 3, even when the member to be cut has an axial shape, the axis M1 of the roller portion 210d and the rotation axis M3 of the member to be cut are not provided on the same plane. Thus, only the central portion of the roller portion 210d can be brought into contact with the sheave surface 31, and interference between the uncut region and the roller portion 210d can be avoided.

(回転しない平面形状の場合)
図28は、被切削部材として平板部材を用いた場合の模式図である。平板を加工する場合など、被切削部材が回転運動を行わず、切削工具1と被切削部材との相対運動が直線運動である場合、単純円筒形状のローラ部210dの軸線M1は必ず被切削部材と平行となる。したがって、単純円筒形状のローラ部210dはη軸方向幅全域にわたって被切削部材と当接し、未切削領域との干渉するおそれがある。
(For planar shapes that do not rotate)
FIG. 28 is a schematic view when a flat plate member is used as a member to be cut. When the member to be cut does not perform a rotational motion, such as when processing a flat plate, and the relative motion between the cutting tool 1 and the member to be cut is a linear motion, the axis M1 of the simple cylindrical roller portion 210d is always the member to be cut. It becomes parallel with. Accordingly, the simple cylindrical roller portion 210d may come into contact with the member to be cut over the entire width in the η-axis direction and may interfere with the uncut region.

したがって、被切削部材との相対運動が直線運動である場合、円筒形状の略中央部分の径を増大させて樽型形状のローラ部210d'とすることにより、ローラ部210d'の中央部分のみで被切削部材と当接させ、未切削領域との干渉を回避することとしてもよい。被切削部材が円錐形状または軸形状であっても、樽型形状のローラ部210d'とすることにより確実に未切削領域との干渉を回避できる。   Accordingly, when the relative motion with the member to be cut is a linear motion, by increasing the diameter of the substantially central portion of the cylindrical shape to form the barrel-shaped roller portion 210d ′, only the central portion of the roller portion 210d ′ is obtained. It is good also as making it contact with a member to be cut and avoiding interference with an uncut field. Even if the member to be cut has a conical shape or a shaft shape, interference with an uncut region can be reliably avoided by using the barrel-shaped roller portion 210d ′.

実施例6につき図29ないし図31に基づき説明する。基本構成は実施例1と同様である。押圧部200eと本体10を別体とする点では実施例5と同様であるが、実施例6では押圧部200eを球体とする点で異なる。   A sixth embodiment will be described with reference to FIGS. The basic configuration is the same as that of the first embodiment. Although it is the same as that of Example 5 in the point which makes the press part 200e and the main body 10 into a different body, Example 6 differs in the point which makes the press part 200e spherical.

図29は実施例6における切削工具1のz軸正方向正面図、図30はy軸正方向正面図である。また、図31は図30のVI−VI断面図である。本体10には押圧部挿入孔12eが設けられ、ξ軸負方向から押圧部200eが回転可能に挿入されてキャップ13eにより閉塞される。また、球状の押圧部200eが本体10から落下しないよう、押圧部挿入孔12eのξ軸正方向側開口部14eは押圧部200eの直径よりも小さく設けられている。   29 is a front view in the z-axis positive direction of the cutting tool 1 according to the sixth embodiment, and FIG. 30 is a front view in the y-axis positive direction. FIG. 31 is a sectional view taken along line VI-VI in FIG. The main body 10 is provided with a pressing portion insertion hole 12e, and the pressing portion 200e is rotatably inserted from the negative ξ axis direction and is closed by the cap 13e. Further, the ξ axis positive direction side opening 14e of the pressing portion insertion hole 12e is provided smaller than the diameter of the pressing portion 200e so that the spherical pressing portion 200e does not fall from the main body 10.

実施例1と同様、実施例6においても押圧部200eの頂部210eは軌跡L1上に位置するよう設けられ、頂部210eはシーブ面31において軌跡L1上、あるいは軌跡L1よりも常時x軸正方向側、すなわち既切削領域内に存在して切削加工面を押圧することとなる。これにより、実施例1と同様、切削と押圧の両工程を同時に行う。   Similar to the first embodiment, in the sixth embodiment, the top portion 210e of the pressing portion 200e is provided so as to be positioned on the locus L1, and the top portion 210e is always on the locus L1 on the sheave surface 31 or on the x axis positive direction side from the locus L1. That is, it exists in the already cut area and presses the cutting surface. Thereby, as in Example 1, both cutting and pressing steps are performed simultaneously.

ここで実施例6の押圧部200eは球体であるため、切削加工面の軌跡L1をなぞることによって押圧部200eは相対運動と反対方向に回転する。したがって、実施例1の作用効果に加え、切削加工面から受ける摩擦抵抗を低減し、押圧工程をスムーズに行うことができる。   Here, since the pressing portion 200e of Example 6 is a sphere, the pressing portion 200e rotates in the opposite direction to the relative motion by tracing the locus L1 of the cutting surface. Therefore, in addition to the effects of the first embodiment, the frictional resistance received from the cut surface can be reduced, and the pressing process can be performed smoothly.

また、押圧部200eは球体であり、被切削部材とは常時点接触することとなる。したがって、押圧部200eが既切削領域内に存在しさえすれば実施例5のように未切削領域との干渉を考慮する必要はなく、被切削部材の形状に左右されることなく確実に押圧を行うことができる。
(他の実施例)
Moreover, the pressing part 200e is a spherical body, and is always in point contact with the member to be cut. Therefore, as long as the pressing portion 200e exists in the already-cut region, it is not necessary to consider interference with the uncut region as in the fifth embodiment, and the press can be reliably performed without being influenced by the shape of the member to be cut. It can be carried out.
(Other examples)

以上、本発明を実施するための最良の形態を実施例に基づいて説明してきたが、本発明の具体的な構成は各実施例に限定されるものではなく、発明の要旨を逸脱しない範囲の設計変更等があっても、本発明に含まれる。   The best mode for carrying out the present invention has been described based on the embodiments. However, the specific configuration of the present invention is not limited to each embodiment, and the scope of the invention is not deviated. Design changes and the like are included in the present invention.

実施例2〜6は実施例1を基本とするものであり、実施例2〜6を適宜組み合わせてもよい。加工条件に合わせて最適な組み合わせを用いることにより、より好ましい加工を実現することができる。   Examples 2 to 6 are based on Example 1, and Examples 2 to 6 may be appropriately combined. More preferable processing can be realized by using an optimal combination according to the processing conditions.

実施例1〜6の切削工具1では切削油の供給につき限定していないが、図32に示すように、切削工具1に油路16を設けて傾斜面11に開口させ、切削油を供給することとしてもよい。なお、図33に実施例4の変形例を示す。油路16を押圧部挿入孔12c内に開口させ、押圧部200cが被切削部材3と当接し、バネ300が収縮して押圧部200cがξ軸負方向に移動することにより油路16と切削加工面が連通され、切削油が供給されることとしてもよい。   In the cutting tools 1 of Examples 1 to 6, although the supply of the cutting oil is not limited, as shown in FIG. 32, an oil passage 16 is provided in the cutting tool 1 to be opened in the inclined surface 11 and the cutting oil is supplied. It is good as well. FIG. 33 shows a modification of the fourth embodiment. The oil passage 16 is opened into the pressing portion insertion hole 12c, the pressing portion 200c comes into contact with the member 3 to be cut, the spring 300 contracts, and the pressing portion 200c moves in the negative direction of the ξ axis, thereby cutting the oil passage 16 and the oil passage 16. It is good also as a processed surface being connected and cutting oil supplied.

本願実施例の切削工具1はξ軸正方向に突出する切刃100を持つ片刃タイプの切削工具であったが、突き切りタイプや中ぐりタイプなど、他のタイプの切削工具であってもよい。例えば、図34では実施例1の切削工具1を突き切りタイプに変形しているが、実施例2〜6の切削工具1を突き切りタイプとしてもよい。   The cutting tool 1 according to the embodiment of the present application is a single-edged type cutting tool having a cutting edge 100 protruding in the positive direction of the ξ axis, but other types of cutting tools such as a cut-off type and a boring type may be used. . For example, in FIG. 34, although the cutting tool 1 of Example 1 is deform | transformed into the cut-off type, it is good also considering the cutting tool 1 of Examples 2-6 as a cut-off type.

実施例5における樽型形状のローラ部200d'をさらに変形し、図35に示すようにそろばん形状のローラ部210d''としてもよい。単純な樽型形状のローラ部200d'に比べ、被切削部材3に対しより確実に点接触させることができる。   The barrel-shaped roller portion 200d ′ according to the fifth embodiment may be further modified to be an abacus-shaped roller portion 210d ″ as shown in FIG. Compared with the simple barrel-shaped roller portion 200d ′, the pointed contact with the member 3 can be more reliably performed.

本願切削工具を用いた切削加工の概略斜視図である。It is a schematic perspective view of the cutting process using this-application cutting tool. 実施例1における本願切削工具のz軸正方向正面図である。It is a z-axis positive direction front view of the present cutting tool in Example 1. 実施例1における本願切削工具のy軸正方向正面図である。It is a y-axis positive direction front view of the present cutting tool in Example 1. 実施例1における傾斜面のξ軸正方向正面図である。FIG. 3 is a front view of the inclined surface in the ξ-axis positive direction in the first embodiment. 加工時における切削工具およびプーリのz軸方向正面図である。It is a z-axis direction front view of a cutting tool and a pulley at the time of processing. 加工時における切削工具およびプーリのy軸負方向正面図である。It is a y-axis negative direction front view of a cutting tool and a pulley at the time of processing. 実施例2における切削工具のz軸正方向正面図である。It is a z-axis positive direction front view of the cutting tool in Example 2. 実施例2における切削工具のy軸正方向正面図である。It is a y-axis positive direction front view of the cutting tool in Example 2. 実施例2における切削工具の傾斜面のξ軸正方向正面図である。FIG. 6 is a front view of the inclined surface of the cutting tool in Example 2 in the positive ξ axis direction. 実施例3における切削工具のz軸正方向正面図である。It is a z-axis positive direction front view of the cutting tool in Example 3. 実施例3における切削工具のy軸正方向正面図である。It is a y-axis positive direction front view of the cutting tool in Example 3. 実施例3における切削工具のI−I断面図である。It is II sectional drawing of the cutting tool in Example 3. FIG. 実施例3における傾斜面のξ軸正方向正面図である。FIG. 9 is a front view of the inclined surface in the ξ-axis positive direction in Example 3. 被切削部材の曲率に対応した切刃と押圧部との相対位置の関係を示す図である。It is a figure which shows the relationship of the relative position of the cutting blade corresponding to the curvature of a to-be-cut member, and a press part. 実施例3の変形例を示す図である。FIG. 10 is a diagram showing a modification of Example 3. 実施例4における切削工具のz軸正方向正面図である。It is a z-axis positive direction front view of the cutting tool in Example 4. 実施例4における切削工具のy軸正方向正面図である。It is a y-axis positive direction front view of the cutting tool in Example 4. 実施例4における切削工具のII−II断面図である。It is II-II sectional drawing of the cutting tool in Example 4. FIG. 実施例5における切削工具のz軸正方向正面図である。It is a z-axis positive direction front view of the cutting tool in Example 5. 実施例5における切削工具のy軸正方向正面図である。It is a y-axis positive direction front view of the cutting tool in Example 5. 実施例5における切削工具のIV−IV断面図である。It is IV-IV sectional drawing of the cutting tool in Example 5. FIG. 実施例5における切削工具V−V断面図である。FIG. 10 is a cross-sectional view of a cutting tool VV in Example 5. 実施例5における傾斜面のξ軸正方向側正面図である。FIG. 10 is a front view of the inclined surface in the ξ axis positive direction side in Example 5. 実施例5における切削工具のIII−III断面図である。It is III-III sectional drawing of the cutting tool in Example 5. FIG. プーリとローラ部との接触状態を示す模式図である(ローラ部軸線とプーリ軸線が同一平面上に存在)。It is a schematic diagram which shows the contact state of a pulley and a roller part (a roller part axis line and a pulley axis line exist on the same plane). プーリとローラ部との接触状態を示す模式図である(ローラ部軸線とプーリ軸線が同一平面上に不存在)。It is a schematic diagram which shows the contact state of a pulley and a roller part (a roller part axis line and a pulley axis line do not exist on the same plane). 軸形状の被切削部材とローラ部との接触状態を示す模式図である。It is a schematic diagram which shows the contact state of a shaft-shaped to-be-cut member and a roller part. 平面形状の被切削部材とローラ部との接触状態を示す模式図である。It is a schematic diagram which shows the contact state of a planar-shaped to-be-cut member and a roller part. 実施例6における切削工具のz軸正方向正面図である。It is a z-axis positive direction front view of the cutting tool in Example 6. 実施例6における切削工具のy軸正方向正面図である。It is a y-axis positive direction front view of the cutting tool in Example 6. 実施例6における切削工具のVI−VI断面図である。It is VI-VI sectional drawing of the cutting tool in Example 6. FIG. 本願実施例の切削工具に切削油供給用の油路を設けた例である。It is the example which provided the oil path for cutting oil supply to the cutting tool of this-application Example. 実施例4の切削工具に切削油供給用の油路を設けた例である。It is the example which provided the oil path for cutting oil supply to the cutting tool of Example 4. FIG. 実施例1の切削工具を突き切りタイプに変形した例である。It is the example which changed the cutting tool of Example 1 into the cut-off type. 実施例5のローラ部をそろばん形状に変形した例である。It is an example which changed the roller part of Example 5 into the abacus shape.

符号の説明Explanation of symbols

1 切削工具
2 固定器具
3 切削部材(プーリ)
10 本体
11 傾斜面
31 シーブ面
100 切刃
110 刃先
200 押圧部
210 頂部
12a カートリッジ収容部
20a カートリッジ
21a ネジ
12b 中ぐり部
20b 台座
21b 斜面
12c 押圧部挿入孔
13c キャップ
220c ξ軸負方向面
230c 突出部
240c 最外径部
250c ストッパ
260c ネジ
300 バネ
14d ξ軸正方向側開口部
15d 段部
210d ローラ部
220d ローラ軸
240d 軸受
250d 保持部材
14e ξ軸正方向側開口部
16 油路
1 Cutting tool 2 Fixing tool 3 Cutting member (pulley)
DESCRIPTION OF SYMBOLS 10 Main body 11 Inclined surface 31 Sheave surface 100 Cutting blade 110 Cutting edge 200 Press part 210 Top part 12a Cartridge accommodating part 20a Cartridge 21a Screw 12b Boring part 20b Base 21b Slope 12c Press part insertion hole 13c Cap 220c ξ-axis negative direction surface 230c Projection part 240c Outermost diameter portion 250c Stopper 260c Screw 300 Spring 14d ξ axis positive direction opening 15d Step portion 210d Roller portion 220d Roller shaft 240d Bearing 250d Holding member 14e ξ axis positive direction opening 16 Oil passage

Claims (12)

被切削部材と当接し、かつ相対運動することで切削を行う切刃と、
切削により前記被切削部材に形成された切削加工面の押圧を行う押圧部と
を有する切削工具において、
前記押圧部は、前記切刃と同時に前記被切削部材に当接するよう設けられるとともに、前記切刃により前記被切削部材に形成される切削面を押圧すること
を特徴とする切削工具。
A cutting blade that abuts the member to be cut and performs cutting by relative movement;
A cutting tool having a pressing portion that presses a cutting surface formed on the workpiece by cutting,
The pressing part is provided so as to contact the member to be cut simultaneously with the cutting edge, and presses a cutting surface formed on the member to be cut by the cutting edge.
請求項1に記載の切削工具において、
前記押圧部は、前記切削工具に対し着脱可能に設けられていること
を特徴とする切削工具。
The cutting tool according to claim 1,
The said pressing part is provided with respect to the said cutting tool so that attachment or detachment is possible. The cutting tool characterized by the above-mentioned.
請求項1または請求項2に記載の切削工具において、
前記刃先と前記押圧部の相対位置は、前記切削面上で変更可能であること
を特徴とする切削工具。
In the cutting tool according to claim 1 or 2,
The cutting tool characterized by that the relative position of the cutting edge and the pressing part can be changed on the cutting surface.
請求項1ないし請求項3のいずれか1項に記載の切削工具において、
前記押圧部を前記被切削部材に付勢し、前記被切削部材の加工面に圧縮残留応力を発生させる付勢手段を設けたこと
を特徴とする切削工具。
In the cutting tool according to any one of claims 1 to 3,
A cutting tool characterized by comprising an urging means for urging the pressing portion against the member to be cut and generating a compressive residual stress on a processed surface of the member to be cut.
請求項4に記載の切削工具において、
前記付勢手段の付勢力を変更可能としたこと
を特徴とする切削工具。
The cutting tool according to claim 4, wherein
A cutting tool characterized in that the urging force of the urging means can be changed.
請求項1ないし請求項5のいずれか1項に記載の切削工具において、
前記押圧部は、前記切削工具に固定された突出部であること
を特徴とする切削工具。
The cutting tool according to any one of claims 1 to 5,
The pressing tool is a protrusion fixed to the cutting tool.
請求項1ないし請求項5のいずれか1項に記載の切削工具において、
前記押圧部は球体であって、前記切削工具に対し回転可能に保持されること
を特徴とする切削工具。
The cutting tool according to any one of claims 1 to 5,
The pressing tool is a sphere, and is held rotatably with respect to the cutting tool.
請求項1ないし請求項5のいずれか1項に記載の切削工具において、
前記押圧部は回転軸を有するローラであって、該回転軸は、前記切削工具に対し回転可能に保持されること
を特徴とする切削工具。
The cutting tool according to any one of claims 1 to 5,
The pressing unit is a roller having a rotation shaft, and the rotation shaft is held rotatably with respect to the cutting tool.
請求項1ないし請求項8のいずれか1項に記載の切削工具において、
前記相対運動は、静止した前記切削工具と回転する前記被切削部材との相対運動であって、
前記被切削部材は、軸形状部材または円錐形状部材であること
を特徴とする切削工具。
In the cutting tool according to any one of claims 1 to 8,
The relative movement is a relative movement between the stationary cutting tool and the rotating member to be rotated,
The cutting tool is a shaft-shaped member or a cone-shaped member.
請求項8および請求項9に記載の切削工具において、
前記押圧部の回転軸方向の直線と前記被切削部材の回転軸方向の直線とは、同一平面上に存在しないこと
を特徴とする切削工具。
In the cutting tool according to claim 8 and claim 9,
The cutting tool characterized in that the straight line in the rotation axis direction of the pressing portion and the straight line in the rotation axis direction of the member to be cut do not exist on the same plane.
請求項9または請求項10に記載の切削工具において、
前記円錐形状部材は、ベルト式無段変速機のプーリであって、
前記切削加工面は、前記プーリのシーブ面であること
を特徴とする切削工具。
The cutting tool according to claim 9 or 10,
The conical member is a pulley of a belt type continuously variable transmission,
The cutting tool, wherein the cutting surface is a sheave surface of the pulley.
被切削部材と切刃を当接させ、かつ相対運動させることで切削を行う切削工程と、
前記切削工程の後、前記被切削部材と押圧部とを相対運動させ、前記被切削部材に形成される切削加工面を順次押圧する押圧工程と
を有する切削加工方法において、
前記切刃と前記押圧部とを、同時に前記被切削部材に当接させ、
前記切削工程と前記押圧工程における相対運動を同一の相対運動とすること
を特徴とする切削加工方法。
A cutting process in which cutting is performed by bringing the member to be cut and the cutting blade into contact with each other and making a relative movement;
After the cutting step, the cutting method having a pressing step of moving the workpiece and the pressing portion relative to each other and sequentially pressing the cutting surface formed on the member to be cut.
The cutting blade and the pressing portion are simultaneously brought into contact with the member to be cut,
The cutting method characterized by making the relative motion in the said cutting process and the said press process into the same relative motion.
JP2005183272A 2005-06-23 2005-06-23 Cutting tool and cutting method Pending JP2007000962A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
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Application Number Priority Date Filing Date Title
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Publications (1)

Publication Number Publication Date
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Country Link
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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100825504B1 (en) * 2005-11-23 2008-04-25 오성진 User interface using camera and method thereof
WO2008055489A2 (en) * 2006-11-10 2008-05-15 Gottfried Wilhelm Leibniz Universität Hannover Device for machine cutting of a workpiece
KR100852061B1 (en) * 2007-11-28 2008-08-13 현대자동차주식회사 Structure for a side sill in a vehicle
JP2019098429A (en) * 2017-11-29 2019-06-24 ジヤトコ株式会社 Processing tool, processing device and processing method

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100825504B1 (en) * 2005-11-23 2008-04-25 오성진 User interface using camera and method thereof
WO2008055489A2 (en) * 2006-11-10 2008-05-15 Gottfried Wilhelm Leibniz Universität Hannover Device for machine cutting of a workpiece
WO2008055489A3 (en) * 2006-11-10 2008-07-10 Univ Hannover Device for machine cutting of a workpiece
KR100852061B1 (en) * 2007-11-28 2008-08-13 현대자동차주식회사 Structure for a side sill in a vehicle
JP2019098429A (en) * 2017-11-29 2019-06-24 ジヤトコ株式会社 Processing tool, processing device and processing method

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