JP2013208676A - Cutting edge replaceable cutting tool and method for adjusting position of cutting blade thereof - Google Patents

Cutting edge replaceable cutting tool and method for adjusting position of cutting blade thereof Download PDF

Info

Publication number
JP2013208676A
JP2013208676A JP2012080487A JP2012080487A JP2013208676A JP 2013208676 A JP2013208676 A JP 2013208676A JP 2012080487 A JP2012080487 A JP 2012080487A JP 2012080487 A JP2012080487 A JP 2012080487A JP 2013208676 A JP2013208676 A JP 2013208676A
Authority
JP
Japan
Prior art keywords
insert
cutting
adjustment member
hole
recess
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP2012080487A
Other languages
Japanese (ja)
Other versions
JP5853830B2 (en
Inventor
Masaharu Takiguchi
正治 滝口
Akira Kanahoshi
彰 金星
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mitsubishi Materials Corp
Original Assignee
Mitsubishi Materials Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Mitsubishi Materials Corp filed Critical Mitsubishi Materials Corp
Priority to JP2012080487A priority Critical patent/JP5853830B2/en
Priority to CN 201320086219 priority patent/CN203156128U/en
Publication of JP2013208676A publication Critical patent/JP2013208676A/en
Application granted granted Critical
Publication of JP5853830B2 publication Critical patent/JP5853830B2/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Landscapes

  • Milling Processes (AREA)

Abstract

PROBLEM TO BE SOLVED: To provide a cutting edge replaceable cutting tool and a method for adjusting a position of a cutting blade thereof in which fine adjustment of the cutting blade position of a cutting insert projected from a tool body can be performed by simple work and with high accuracy.SOLUTION: An adjustment member 26 disposed in a recess 23 has a through hole 28 with a tapered face 36, and slits 29 communicating with the through hole 28 is elastically deformable, and has an insert contact face 35 projected to be retractable from one wall face 18. The insert contact face 35 is pressed in the recess 23 by a side face 15 of a cutting insert 4 when a clamp screw 20 is screwed therein, and moves backward by the elastic deformation of the adjustment member 26. When an adjustment screw 27 inserted into the through hole 28 is screwed therein, the adjustment member 26 is restored and deformed while a head of the adjustment screw 27 is in slide-contact with the tapered face 36 to make the insert contact face 35 press the side face 15 of the cutting insert 4 against a tip side or the radial outside of a tool body 2, and a position of the cutting blade 5 can be adjusted.

Description

本発明は、刃先交換式切削工具及びその切れ刃位置調整方法に関するものである。   The present invention relates to a cutting edge exchangeable cutting tool and a cutting edge position adjusting method thereof.

従来、この種の刃先交換式切削工具として、例えば下記特許文献１に示されるような、軸線回りに回転させられる円盤状の工具本体と、該工具本体の先端外周部に形成されたインサート取付座に着脱可能に装着され、前記工具本体の先端側及び径方向外側の少なくともいずれかに向けて切れ刃を突出させる切削インサートとを備えたものが知られている。   Conventionally, as this type of cutting edge exchangeable cutting tool, for example, as shown in Patent Document 1 below, a disk-shaped tool body that is rotated around an axis, and an insert mounting seat formed on the outer periphery of the tip of the tool body And a cutting insert that projects a cutting edge toward at least one of the tip end side and the radially outer side of the tool body is known.

この刃先交換式切削工具には、切削インサートを工具本体の先端側に向けて押圧するとともに、該切削インサートの切れ刃位置を調整する調整部材が設けられている。具体的には、工具本体に対する切削インサートの固定を緩めた状態（仮止め状態）で、調整部材の押圧ネジのねじ込み量を調整することで、該切削インサートの切れ刃位置（工具本体からの切れ刃の突出量）を調整し、その後、切削インサートを工具本体に固定するようにしている。   This blade-tip-exchangeable cutting tool is provided with an adjusting member that presses the cutting insert toward the tip side of the tool body and adjusts the cutting edge position of the cutting insert. Specifically, by adjusting the screwing amount of the pressing screw of the adjustment member in a state in which the cutting insert is loosely fixed to the tool body (temporarily fixed state), the cutting blade position of the cutting insert (cut from the tool body) The amount of protrusion of the blade is adjusted, and then the cutting insert is fixed to the tool body.

特開２００７−２６０８０７号公報JP 2007-260807 A

しかしながら、この種の刃先交換式切削工具においては、切削インサートを工具本体に仮止めした状態から切れ刃位置を調整し、この調整後に、切削インサートを工具本体に固定しているため、作業が複雑であり、また最終的に固定する際に、工具本体に対して切削インサートが意図せず僅かに移動してしまうことがあり、切れ刃位置の微調整が難しかった。またこのような事情から、切れ刃の振れ精度（切れ刃突出量の精度）を確保するために、多くの作業時間を要していた。   However, in this type of cutting edge-replaceable cutting tool, the cutting blade position is adjusted from the state where the cutting insert is temporarily fixed to the tool body, and after this adjustment, the cutting insert is fixed to the tool body. In addition, when it is finally fixed, the cutting insert may unintentionally move slightly with respect to the tool body, and fine adjustment of the cutting edge position is difficult. Also, due to such circumstances, it takes a lot of work time to ensure the accuracy of the cutting edge runout (accuracy of the amount of protrusion of the cutting edge).

本発明は、このような事情に鑑みてなされたものであって、工具本体から突出される切削インサートの切れ刃位置を、簡単な作業で高精度に微調整でき、これにより高品位な切削加工を効率よく行うことができる刃先交換式切削工具及びその切れ刃位置調整方法を提供することを目的としている。   The present invention has been made in view of such circumstances, and the cutting edge position of the cutting insert protruding from the tool main body can be finely adjusted with high accuracy by a simple operation, thereby enabling high-quality cutting processing. It is an object of the present invention to provide a cutting edge-exchangeable cutting tool and a method for adjusting the cutting edge position thereof.

このような課題を解決して、前記目的を達成するために、本発明は以下の手段を提案している。
すなわち、本発明は、軸線回りに回転させられる円盤状の工具本体と、該工具本体の先端外周部に形成されたインサート取付座に着脱可能に装着され、前記工具本体の先端側及び径方向外側の少なくともいずれかに向けて切れ刃を突出させる切削インサートとを備える刃先交換式切削工具であって、前記インサート取付座は、平板状をなす前記切削インサートの厚さ方向を向く一対の外面のうち着座面に当接される底面と、この底面から立ち上がるように形成されて前記切削インサートの厚さ方向に直交する方向を向く側面に当接される一対の壁面とを有し、前記切削インサートの側面は、該切削インサートの厚さ方向に沿って前記着座面側に向かうに従い漸次インサート内側に後退するように傾斜して形成され、前記切削インサートには、該切削インサートを厚さ方向に貫通する取付孔が形成されており、前記取付孔に挿通されたクランプネジが、前記インサート取付座の底面に穿設されたクランプネジ穴にねじ込まれることにより、前記インサート取付座の前記一対の壁面に、前記切削インサートの側面が当接可能とされており、前記工具本体には、前記一対の壁面のうち一方の壁面に開口されて、前記インサート取付座に隣接する凹所が形成され、前記凹所は、前記インサート取付座の底面と同じ向きを向く支持面を有するとともに、該支持面には調整ネジ穴が穿設されており、前記凹所には筒状をなす調整部材が配設され、該凹所の前記支持面には、この調整部材の被支持面が当接され、前記調整部材は、該調整部材をその中心線方向に貫通するとともに、前記調整ネジ穴に螺合する調整ネジが挿通される貫通孔と、該貫通孔に連通するスリットとを有し、前記中心線に交差する方向に弾性変形可能とされ、前記貫通孔は、その中心線方向に沿って前記被支持面側に向かうに従い漸次縮径されるとともに前記調整ネジの頭部に摺接されるテーパ面を有し、前記調整部材は、前記一方の壁面から出没可能に突出するインサート当接面を有し、前記インサート当接面は、前記中心線方向に沿って前記被支持面側に向かうに従い漸次前記一方の壁面からの突出量が増大するように傾斜して形成され、前記クランプネジをねじ込んだ際に、前記切削インサートの側面により前記凹所内へ向けて押圧されるとともに、前記調整部材が弾性変形することで後退するようになされ、前記調整ネジをねじ込むことにより、該調整ネジの頭部が前記調整部材のテーパ面に摺接しつつ前記調整部材を復元変形させて、前記インサート当接面が前記切削インサートの側面を前記工具本体の先端側又は径方向外側に向けて押し出すとともに、この切削インサートの切れ刃位置を調整可能としたことを特徴とする。
また、本発明は、軸線回りに回転させられる円盤状の工具本体と、該工具本体の先端外周部に形成されたインサート取付座に着脱可能に装着され、前記工具本体の先端側及び径方向外側の少なくともいずれかに向けて切れ刃を突出させる切削インサートとを備える刃先交換式切削工具の切れ刃位置調整方法であって、前記インサート取付座は、平板状をなす前記切削インサートの厚さ方向を向く一対の外面のうち着座面に当接される底面と、この底面から立ち上がるように形成されて前記切削インサートの厚さ方向に直交する方向を向く側面に当接される一対の壁面とを有し、前記切削インサートの側面は、該切削インサートの厚さ方向に沿って前記着座面側に向かうに従い漸次インサート内側に後退するように傾斜して形成され、前記切削インサートには、該切削インサートを厚さ方向に貫通する取付孔が形成されており、前記工具本体には、前記一対の壁面のうち一方の壁面に開口されて、前記インサート取付座に隣接する凹所が形成され、前記凹所は、前記インサート取付座の底面と同じ向きを向く支持面を有するとともに、該支持面には調整ネジ穴が穿設されており、前記凹所には筒状をなす調整部材が配設され、該凹所の前記支持面には、この調整部材の被支持面が当接され、前記調整部材は、該調整部材をその中心線方向に貫通するとともに、前記調整ネジ穴に螺合する調整ネジが挿通される貫通孔と、該貫通孔に連通するスリットとを有し、前記中心線に交差する方向に弾性変形可能とされ、前記貫通孔は、その中心線方向に沿って前記被支持面側に向かうに従い漸次縮径されるとともに前記調整ネジの頭部に摺接されるテーパ面を有し、前記調整部材は、前記一方の壁面から出没可能に突出するインサート当接面を有し、前記インサート当接面は、前記中心線方向に沿って前記被支持面側に向かうに従い漸次前記一方の壁面からの突出量が増大するように傾斜して形成され、前記取付孔にクランプネジを挿通して、前記インサート取付座の底面に穿設されたクランプネジ穴にねじ込むことにより、前記インサート取付座の前記一対の壁面に、前記切削インサートの側面を当接させ、前記調整部材のインサート当接面は、前記切削インサートの側面により前記凹所内へ向けて押圧されるとともに、前記調整部材が弾性変形することで後退され、前記調整ネジをねじ込むことにより、該調整ネジの頭部を前記調整部材のテーパ面に摺接させつつ前記調整部材を復元変形させて、前記インサート当接面が前記切削インサートの側面を前記工具本体の先端側又は径方向外側に向けて押し出すとともに、この切削インサートの切れ刃位置を調整可能としたことを特徴とする。 In order to solve such problems and achieve the above object, the present invention proposes the following means.
That is, the present invention is detachably mounted on a disk-shaped tool body that is rotated around an axis, and an insert mounting seat formed on the outer periphery of the tip of the tool body. A cutting edge-exchanging cutting tool including a cutting insert that protrudes toward at least one of the cutting insert, wherein the insert mounting seat is formed of a flat plate of a pair of outer surfaces facing the thickness direction of the cutting insert A bottom surface that is in contact with the seating surface, and a pair of wall surfaces that are formed so as to rise from the bottom surface and that are in contact with a side surface facing a direction orthogonal to the thickness direction of the cutting insert, The side surface is formed to be inclined so as to gradually recede to the inside of the insert as it goes toward the seating surface side along the thickness direction of the cutting insert. A mounting hole penetrating the cutting insert in the thickness direction is formed, and a clamp screw inserted through the mounting hole is screwed into a clamp screw hole drilled in a bottom surface of the insert mounting seat, whereby the insert The side surface of the cutting insert can be brought into contact with the pair of wall surfaces of the mounting seat, and the tool body is open to one wall surface of the pair of wall surfaces and is adjacent to the insert mounting seat. A recess is formed, and the recess has a support surface facing in the same direction as the bottom surface of the insert mounting seat, and an adjustment screw hole is formed in the support surface, and the recess has a cylindrical shape. An adjustment member is provided, and the supported surface of the adjustment member is in contact with the support surface of the recess, and the adjustment member penetrates the adjustment member in the center line direction, and Adjustment screw hole The through hole into which the adjusting screw to be screwed is inserted, and a slit communicating with the through hole, are elastically deformable in a direction intersecting the center line, and the through hole extends along the center line direction. The taper surface is gradually reduced in diameter toward the supported surface side and has a tapered surface that is slidably contacted with the head of the adjustment screw, and the adjustment member protrudes from the one wall surface so as to protrude and retract. The insert abutment surface is inclined so that the amount of protrusion from the one wall surface gradually increases toward the supported surface side along the center line direction, and the clamp screw When the screw is screwed, it is pressed into the recess by the side surface of the cutting insert, and the adjusting member is retracted by elastic deformation, and the adjusting screw is screwed to thereby adjust the screw. While the head of the sliding member is in sliding contact with the tapered surface of the adjustment member, the adjustment member is restored and deformed, and the insert contact surface pushes the side surface of the cutting insert toward the distal end side or the radially outer side of the tool body. The cutting blade position of this cutting insert can be adjusted.
Further, the present invention provides a disc-shaped tool body that is rotated around an axis, and an insert mounting seat formed on the outer periphery of the tip of the tool body, and is detachably attached to the tip side and the radially outer side of the tool body. A cutting edge position adjusting method of a cutting edge exchangeable cutting tool comprising a cutting insert that protrudes toward at least one of the cutting insert, wherein the insert mounting seat has a thickness direction of the cutting insert having a flat plate shape. Of the pair of facing outer surfaces, there is a bottom surface that is in contact with the seating surface, and a pair of wall surfaces that are formed so as to rise from the bottom surface and are in contact with the side surfaces facing the direction perpendicular to the thickness direction of the cutting insert. The side surface of the cutting insert is formed to be inclined so as to gradually recede toward the inside of the insert as it goes toward the seating surface side along the thickness direction of the cutting insert, The insertion hole is formed with a mounting hole penetrating the cutting insert in the thickness direction, and the tool body has a recess that is opened in one wall surface of the pair of wall surfaces and is adjacent to the insert mounting seat. The recess has a support surface facing in the same direction as the bottom surface of the insert mounting seat, and an adjustment screw hole is formed in the support surface, and the recess has a cylindrical shape. An adjustment member is provided, and the support surface of the adjustment member is in contact with the support surface of the recess, and the adjustment member penetrates the adjustment member in the center line direction and the adjustment surface. A through hole through which an adjustment screw that is screwed into the screw hole is inserted; and a slit that communicates with the through hole. The through hole is elastically deformable in a direction intersecting the center line. Gradually along the direction toward the supported surface The tapered member has a tapered surface that is slidably contacted with the head of the adjustment screw and the adjustment member has an insert contact surface that protrudes from and protrudes from the one wall surface, and the insert contact surface Is formed to be inclined so that the amount of protrusion from the one wall surface gradually increases toward the supported surface along the center line direction, and a clamp screw is inserted into the mounting hole to insert the insert The side surface of the cutting insert is brought into contact with the pair of wall surfaces of the insert mounting seat by screwing into a clamp screw hole formed in the bottom surface of the mounting seat, and the insert contact surface of the adjustment member is The side surface of the insert is pressed into the recess, the adjustment member is retracted by elastic deformation, and the adjustment screw is screwed to adjust the head of the adjustment screw. The adjusting member is restored and deformed while being brought into sliding contact with the tapered surface of the adjusting member, and the insert contact surface pushes the side surface of the cutting insert toward the distal end side or the radially outer side of the tool body, and the cutting insert. The position of the cutting edge can be adjusted.

本発明の刃先交換式切削工具及びその切れ刃位置調整方法においては、工具本体のインサート取付座に隣接して凹所が形成されており、該凹所には調整部材が配設されている。調整部材の貫通孔にはスリットが連通しており、これにより該調整部材は、その中心線に交差する方向に弾性変形可能となっている。   In the cutting edge replacement type cutting tool and the cutting edge position adjusting method of the present invention, a recess is formed adjacent to the insert mounting seat of the tool body, and an adjusting member is disposed in the recess. A slit communicates with the through hole of the adjustment member, so that the adjustment member can be elastically deformed in a direction intersecting the center line.

インサート取付座に切削インサートを装着して切れ刃位置を調整するには、まず、この切削インサートの取付孔にクランプネジを挿通して、インサート取付座のクランプネジ穴に螺合する。クランプネジをねじ込んでいくと、インサート取付座の一対の壁面に対して切削インサートの側面が当接させられるが、この際、一方の壁面から突出する調整部材のインサート当接面は、切削インサートの側面に押圧されつつ、該調整部材が弾性変形することで、凹所内に向けて後退させられる。   In order to adjust the position of the cutting edge by attaching the cutting insert to the insert mounting seat, first, a clamp screw is inserted into the mounting hole of the cutting insert and screwed into the clamp screw hole of the insert mounting seat. As the clamp screw is screwed in, the side surface of the cutting insert comes into contact with the pair of wall surfaces of the insert mounting seat. At this time, the insert contact surface of the adjustment member protruding from one wall surface is The adjustment member is elastically deformed while being pressed by the side surface, and is thus retracted toward the recess.

次いで、調整部材の貫通孔に調整ネジを挿通して、凹所の調整ネジ穴にねじ込むと、調整ネジの頭部がこの貫通孔のテーパ面に摺接させられて、調整部材を復元変形させていく。これにより、調整部材のインサート当接面が切削インサートの側面を押圧して、該側面が一方の壁面から離間されつつ、該調整部材は切削インサートを工具本体の先端側又は径方向外側に向けて押し出すとともに、この切削インサートの切れ刃位置が微調整されるようになっている。   Next, when the adjustment screw is inserted into the through hole of the adjustment member and screwed into the adjustment screw hole in the recess, the head of the adjustment screw is brought into sliding contact with the tapered surface of the through hole, and the adjustment member is restored and deformed. To go. As a result, the insert abutting surface of the adjusting member presses the side surface of the cutting insert, and while the side surface is separated from the one wall surface, the adjusting member directs the cutting insert toward the tip end side or the radially outer side of the tool body. While extruding, the cutting edge position of the cutting insert is finely adjusted.

ここで、本明細書でいう「復元変形」とは、調整部材が弾性変形させられる前の初期状態に戻されることを指しているが、それとともに、調整ネジのねじ込みによって当該初期状態を越えて、前記弾性変形とは逆向きに調整部材が弾性変形させられる変形をも含む概念である。   Here, “restoration deformation” as used in the present specification means that the adjustment member is returned to the initial state before elastically deforming, and at the same time, the adjustment member exceeds the initial state by screwing the adjustment screw. The concept includes a deformation in which the adjustment member is elastically deformed in the opposite direction to the elastic deformation.

そして、本発明では、クランプネジをねじ込んで切削インサートの側面により押圧することで、調整部材のインサート当接面部分を弾性変形させつつ後退させた後、調整ネジをねじ込んで当該インサート当接面部分を復元変形させていることから、切れ刃位置（切れ刃突出量）の調整量を大きく確保することができる。具体的に、本発明とは異なり、例えば単純に調整ネジをねじ込むことのみによってインサート当接面部分を切削インサート側に向けて弾性変形させる場合の切れ刃位置の調整量に対して、本発明によれば、２倍程度又はそれ以上の調整量を確保することが可能となる。   In the present invention, the clamp screw is screwed and pressed by the side surface of the cutting insert, so that the insert contact surface portion of the adjustment member is retracted while being elastically deformed, and then the adjustment screw is screwed in to the insert contact surface portion. Therefore, it is possible to ensure a large adjustment amount of the cutting edge position (cutting blade protrusion amount). Specifically, unlike the present invention, for example, the present invention is applied to the amount of adjustment of the cutting edge position when the insert contact surface portion is elastically deformed toward the cutting insert side by simply screwing the adjusting screw. According to this, it is possible to secure an adjustment amount of about twice or more.

また、本発明とは異なる従来の方法では、例えば、切削インサートをクランプネジで仮止めした状態から切れ刃位置を調整し、この調整後にクランプネジをねじ込む（本締めする）ことで切削インサートをインサート取付座に固定していたが、このような方法では作業が複雑となるばかりか、本締め時に切削インサートが僅かに移動するなどして切れ刃位置の微調整が困難であった。
一方、本発明によれば、切削インサートをクランプネジで本締めした状態から、調整ネジのねじ込み量に応じて該クランプネジを撓ませることで、切れ刃位置を微調整可能である。さらに、このようにねじ込んだ調整ネジを緩めた場合には、撓まされたクランプネジが復元変形させられて、切れ刃位置を工具本体の基端側又は径方向内側に向けて後退させることも可能であるから、切れ刃の振れ精度（切れ刃突出量の精度）が十分に高められつつも、切れ刃位置の微調整が非常に簡単であり、作業性に優れている。 Further, in the conventional method different from the present invention, for example, the cutting blade position is adjusted from a state in which the cutting insert is temporarily fixed with the clamp screw, and the cutting insert is inserted by tightening the clamp screw after this adjustment. Although fixed to the mounting seat, such a method not only complicates the work but also makes it difficult to finely adjust the position of the cutting edge due to a slight movement of the cutting insert during final tightening.
On the other hand, according to the present invention, the cutting blade position can be finely adjusted by bending the clamp screw in accordance with the screwing amount of the adjustment screw from the state where the cutting insert is finally tightened with the clamp screw. Furthermore, when the adjustment screw screwed in this way is loosened, the bent clamp screw is restored and deformed, and the cutting edge position may be retracted toward the proximal end side or the radial inner side of the tool body. Since this is possible, the fineness adjustment of the cutting edge position is very simple and the workability is excellent while the runout accuracy of the cutting edge (accuracy of the protruding amount of the cutting edge) is sufficiently enhanced.

尚、前述したようにクランプネジを本締めした状態で、切削インサートの側面はインサート取付座の一対の壁面にそれぞれ当接されていることから、次いで調整ネジのねじ込みにより工具本体の先端側又は径方向外側に向けて切れ刃の突出量を調整した後においても、これら一対の壁面のうち、他方の壁面には切削インサートの側面が当接させられた状態となっている。   In addition, since the side surface of the cutting insert is in contact with the pair of wall surfaces of the insert mounting seat with the clamp screw fully tightened as described above, the tip end side or diameter of the tool body is then screwed by adjusting screws. Even after adjusting the protruding amount of the cutting edge toward the outside in the direction, the side surface of the cutting insert is in contact with the other wall surface of the pair of wall surfaces.

従って、工具本体の先端側に向けて切れ刃位置を調整した場合に、径方向外側を向く切れ刃の位置についても、精度よく位置決めされることになる。また同様に、工具本体の径方向外側に向けて切れ刃位置を調整した場合に、工具先端側を向く切れ刃の位置についても、精度よく位置決めされる。   Therefore, when the position of the cutting edge is adjusted toward the tip side of the tool body, the position of the cutting edge facing radially outward is also accurately positioned. Similarly, when the position of the cutting edge is adjusted toward the outside in the radial direction of the tool body, the position of the cutting edge facing the tool tip side is also accurately positioned.

このように、本発明によれば、切削インサートをクランプネジでねじ込んで固定（本締め）した後で、調整ネジのねじ込み量によって該クランプネジを撓ませることで、切れ刃位置を調整可能としたので、工具本体の先端側又は径方向外側へ向けた切れ刃位置（切れ刃の突出量）を簡単に、かつ精度よく微調整できる。これにより、高品位な切削加工が安定して維持されるとともに、切削効率が向上して、生産性が高められる。   As described above, according to the present invention, after the cutting insert is screwed and fixed (finally tightened) with the clamp screw, the cutting blade position can be adjusted by bending the clamp screw according to the screwing amount of the adjusting screw. Therefore, the position of the cutting edge (the amount of protrusion of the cutting edge) toward the distal end side or the radially outer side of the tool body can be easily and finely adjusted. As a result, high-quality cutting is stably maintained, cutting efficiency is improved, and productivity is increased.

また、本発明の刃先交換式切削工具において、前記インサート取付座及び前記凹所を含む断面視で、前記調整部材の前記被支持面は、前記中心線に直交する方向のうち前記インサート当接面側に向かうに従い漸次前記凹所の前記支持面から離間するように形成されていることとしてもよい。   Further, in the cutting edge-exchangeable cutting tool of the present invention, the supported surface of the adjustment member is the insert contact surface in a direction orthogonal to the center line in a cross-sectional view including the insert mounting seat and the recess. It is good also as forming so that it may space apart from the said support surface of the said recess gradually as it goes to the side.

この場合、調整ネジを調整部材の貫通孔に挿通して凹所の調整ネジ穴にねじ込んでいくときに、被支持面と支持面との当接によって調整部材の復元変形が妨げられるような事態を回避でき、前述した効果がより確実に得られることになる。   In this case, when the adjustment screw is inserted through the through hole of the adjustment member and screwed into the adjustment screw hole of the recess, the restoration deformation of the adjustment member is prevented by the contact between the supported surface and the support surface Thus, the above-described effects can be obtained more reliably.

すなわち、調整部材を復元変形させる際には、該調整部材の被支持面においてインサート当接面側に位置する部位は、凹所の支持面に当接されていないことが好ましく、これにより、調整部材のインサート当接面部分が確実に復元変形されやすくなる。   That is, when restoring and deforming the adjustment member, it is preferable that the portion of the supported surface of the adjustment member that is located on the insert contact surface side is not in contact with the support surface of the recess. The insert contact surface portion of the member is easily and reliably deformed and deformed.

本発明の刃先交換式切削工具及びその切れ刃位置調整方法によれば、工具本体から突出される切削インサートの切れ刃位置を、簡単な作業で高精度に微調整でき、これにより高品位な切削加工を効率よく行うことができる。   According to the cutting edge-exchangeable cutting tool and the cutting edge position adjusting method of the present invention, the cutting edge position of the cutting insert protruding from the tool body can be finely adjusted with high accuracy by a simple operation, thereby achieving high-quality cutting. Processing can be performed efficiently.

本発明の一実施形態に係る刃先交換式切削工具の縦断面図である。It is a longitudinal cross-sectional view of the blade-tip-exchange-type cutting tool which concerns on one Embodiment of this invention. 本発明の一実施形態に係る刃先交換式切削工具を工具先端側から見た正面図である。It is the front view which looked at the blade-tip-exchange-type cutting tool which concerns on one Embodiment of this invention from the tool front end side. 本発明の一実施形態に係る刃先交換式切削工具の要部を（ａ）工具回転方向前方側から見た図、（ｂ）工具本体の径方向外側から見た断面図である。BRIEF DESCRIPTION OF THE DRAWINGS It is the figure which looked at the principal part of the blade-tip-exchange-type cutting tool which concerns on one Embodiment of this invention from the (a) tool rotation direction front side, (b) It is sectional drawing seen from the radial direction outer side of the tool main body. 本発明の一実施形態に係る刃先交換式切削工具の工具本体のインサート取付座及び凹所を説明する図（工具回転方向前方側から見た図）である。It is a figure (figure seen from the tool rotation direction front side) explaining the insert mounting seat and recess of the tool main body of the cutting edge exchange type cutting tool according to an embodiment of the present invention. 本発明の一実施形態に係る刃先交換式切削工具の調整部材を（ａ）中心線方向に沿う貫通孔のテーパ面側から見た図、（ｂ）中心線に直交する方向から見た図、（ｃ）中心線方向に沿う被支持面側から見た図である。(A) The figure which looked at the adjustment member of the blade-tip-exchange-type cutting tool which concerns on one Embodiment of this invention from the taper surface side of the through-hole along a centerline direction, (b) The figure seen from the direction orthogonal to a centerline, (C) It is the figure seen from the to-be-supported surface side in alignment with a center line direction. 本発明の一実施形態に係る刃先交換式切削工具の切削インサートの取り付け手順を示すものであり、その要部を（ａ）工具回転方向前方側から見た図、（ｂ）工具本体の径方向外側から見た断面図である。The attachment procedure of the cutting insert of the blade-tip-exchange-type cutting tool which concerns on one Embodiment of this invention is shown, (a) The figure which looked at the principal part from the tool rotation direction front side, (b) The radial direction of a tool main body It is sectional drawing seen from the outer side.

以下、本発明の一実施形態に係る刃先交換式切削工具１について、図面を参照して説明する。
本実施形態の刃先交換式切削工具１は、金属材料等からなる被削材にフライス加工を施すものである。 Hereinafter, a blade-tip-exchangeable cutting tool 1 according to an embodiment of the present invention will be described with reference to the drawings.
The blade-tip-exchangeable cutting tool 1 according to the present embodiment performs milling on a work material made of a metal material or the like.

図１及び図２に示されるように、刃先交換式切削工具１は、軸線Ｏ回りに回転させられる円盤状の工具本体２と、該工具本体２の先端外周部に周方向に間隔をあけて複数形成されたインサート取付座３に着脱可能に装着され、工具本体２の先端側及び径方向外側の少なくともいずれかに向けて切れ刃５を突出させる切削インサート４とを備えている。本実施形態では、図１に示されるように、切削インサート４の切れ刃５のうち、工具本体２の先端側（図１における下側）に向けて切れ刃５Ａが突出されており、工具本体２の径方向外側に向けて切れ刃５Ｂが突出されている。
ここで、本明細書では、工具本体２の軸線Ｏに沿う方向（軸線Ｏ方向）のうち、該工具本体２を支持し回転させる不図示の工作機械の主軸側（図１における上側）を基端側といい、工具本体２の前記主軸とは反対側の方向（図１における下側）を先端側という。また、軸線Ｏに垂直な方向（軸線Ｏに直交する方向）を径方向といい、軸線Ｏ回りに周回する方向を周方向という。 As shown in FIGS. 1 and 2, the blade-tip-exchangeable cutting tool 1 includes a disc-shaped tool body 2 that is rotated around an axis O, and a circumferentially spaced space between the tip outer periphery of the tool body 2. A cutting insert 4 is provided that is detachably mounted on a plurality of formed insert mounting seats 3 and projects a cutting edge 5 toward at least one of the distal end side and the radially outer side of the tool body 2. In the present embodiment, as shown in FIG. 1, the cutting edge 5 </ b> A of the cutting edge 5 of the cutting insert 4 is projected toward the distal end side (lower side in FIG. 1) of the tool body 2, and the tool body The cutting edge 5B protrudes outward in the radial direction of 2.
Here, in the present specification, the main axis side (the upper side in FIG. 1) of a machine tool (not shown) that supports and rotates the tool main body 2 in the direction along the axis O (axis O direction) of the tool main body 2 is based. It is called the end side, and the direction opposite to the main axis of the tool body 2 (the lower side in FIG. 1) is called the tip side. A direction perpendicular to the axis O (direction orthogonal to the axis O) is referred to as a radial direction, and a direction around the axis O is referred to as a circumferential direction.

工具本体２は、鋼材等からなり、軸線Ｏを中心とした円盤状をなしている。工具本体２において基端側を向く基端面６には、軸線Ｏに沿って延びる多段円柱穴状の工具取付孔７が開口されている。工具取付孔７の内周面には、基端側に向かうに従い漸次拡径するテーパ部７ａと、他の部分よりも一段大径とされた被係合部７ｂとが形成されている。そして、工具取付孔７のテーパ部７ａに、不図示の工作機械の主軸におけるテーパ部が嵌合されることにより、工具本体２の軸線Ｏと前記主軸とが同軸に芯合せされるようになっており、また、工具本体２の基端面６に工作機械の当接面が当接しつつ、被係合部７ｂに、前記主軸の係合部が係合することにより、これら工具本体２と主軸との軸線Ｏ方向へ向けた相対移動が規制されるようになっている。   The tool body 2 is made of a steel material or the like and has a disk shape with the axis O as the center. A tool mounting hole 7 having a multistage cylindrical hole shape extending along the axis O is opened on the base end surface 6 facing the base end side in the tool body 2. On the inner peripheral surface of the tool mounting hole 7, there are formed a tapered portion 7a that gradually increases in diameter toward the proximal end side, and an engaged portion 7b that is one step larger in diameter than the other portions. The taper portion 7a of the tool mounting hole 7 is fitted with the taper portion of the main shaft of the machine tool (not shown), so that the axis O of the tool body 2 and the main shaft are coaxially aligned. In addition, the tool main body 2 and the main shaft are engaged with each other by engaging the engaging portion of the main shaft with the engaged portion 7b while the contact surface of the machine tool is in contact with the base end surface 6 of the tool main body 2. Relative movement in the direction of the axis O is restricted.

また、図１及び図２において符号８で示されるものは、工具本体２と前記主軸との軸線Ｏ回りの相対回転を規制する回転規制部である。また、符号９で示されるものは、工具本体２の工具取付孔７から該工具本体２の外周面に向けて延びるとともに、インサート取付座３へ向けてクーラント（切削油剤）を供給するクーラント供給孔である。
刃先交換式切削工具１は、工具本体２が工作機械の主軸に装着された状態で、インサート取付座３の切削インサート４へ向けてクーラントを供給しつつ軸線Ｏ回りの工具回転方向Ｔに回転させられて、被削材の切削加工に供される。 1 and 2 is a rotation restricting portion for restricting relative rotation around the axis O between the tool main body 2 and the main shaft. What is indicated by reference numeral 9 is a coolant supply hole that extends from the tool mounting hole 7 of the tool body 2 toward the outer peripheral surface of the tool body 2 and supplies coolant (cutting fluid) to the insert mounting seat 3. It is.
The cutting edge-exchangeable cutting tool 1 is rotated in the tool rotation direction T around the axis O while supplying coolant toward the cutting insert 4 of the insert mounting seat 3 with the tool body 2 mounted on the spindle of the machine tool. And used for cutting of the work material.

また、工具本体２の先端面１０には、軸線Ｏを中心として基端側へ向けて窪む円柱穴状の基準穴部１１が形成されている。基準穴部１１は、切削インサート４の切れ刃５Ｂ位置（径方向外側へ向けた切れ刃５Ｂの突出量）を測定する基準に用いられるものである。   In addition, a cylindrical hole-shaped reference hole portion 11 that is recessed toward the proximal end centering on the axis O is formed on the distal end surface 10 of the tool body 2. The reference hole portion 11 is used as a reference for measuring the position of the cutting edge 5B of the cutting insert 4 (the amount of protrusion of the cutting edge 5B directed outward in the radial direction).

また、工具本体２の外周面には、該工具本体２の外面が切り欠かれるように凹状をなすチップポケット（切屑排出溝）１２が、周方向に間隔をあけて複数形成されている。本実施形態では、チップポケット１２は、工具本体２の先端側、径方向外側及び基端側に向けて開口されており、該チップポケット１２において工具回転方向Ｔ前方側を向く壁部に、インサート取付座３がそれぞれ形成されている。また、前記クーラント供給孔９は、チップポケット１２に開口されている。   Further, a plurality of concave chip pockets (chip discharge grooves) 12 are formed on the outer peripheral surface of the tool main body 2 at intervals in the circumferential direction so that the outer surface of the tool main body 2 is cut out. In the present embodiment, the tip pocket 12 is opened toward the distal end side, the radially outer side, and the proximal end side of the tool body 2, and an insert is inserted into a wall portion facing the front side in the tool rotation direction T in the tip pocket 12. A mounting seat 3 is formed. The coolant supply hole 9 is opened in the chip pocket 12.

本実施形態では、図２に示されるように、これらチップポケット１２同士が、周方向に不等間隔に配置されており、これによりインサート取付座３同士も、周方向に不等間隔に配置されている。   In the present embodiment, as shown in FIG. 2, the chip pockets 12 are arranged at unequal intervals in the circumferential direction, whereby the insert mounting seats 3 are also arranged at unequal intervals in the circumferential direction. ing.

また、図３（ａ）（ｂ）に示されるように、切削インサート４は、四角形平板状をなしており、その厚さ方向を向く一対の外面である四角形面のうち、工具本体２に装着された状態で工具回転方向Ｔ前方側を向く面がすくい面１３とされ、工具回転方向Ｔ後方側を向く面が着座面１４とされている。   Further, as shown in FIGS. 3A and 3B, the cutting insert 4 has a rectangular flat plate shape, and is attached to the tool body 2 out of a pair of outer surfaces facing the thickness direction. In this state, a surface facing the front side in the tool rotation direction T is a rake surface 13, and a surface facing the rear side in the tool rotation direction T is a seating surface 14.

また、切削インサート４において厚さ方向に垂直な方向を向く４つの側面１５は、切削インサート４の厚さ方向に沿って着座面１４側に向かうに従い漸次インサート内側（切削インサート４の内部へ向かう方向）に後退するように傾斜して形成されており、これによりこれら側面１５はそれぞれ台形面とされているとともに、すくい面１３は着座面１４よりも大きい四角形面となっている。   In addition, the four side surfaces 15 facing the direction perpendicular to the thickness direction in the cutting insert 4 gradually move toward the inside of the insert (in the direction toward the inside of the cutting insert 4) toward the seating surface 14 side along the thickness direction of the cutting insert 4. The side surfaces 15 are each formed as a trapezoidal surface, and the rake surface 13 is a rectangular surface larger than the seating surface 14.

また、すくい面１３と側面１５との交差稜線が、前記切れ刃５とされている。本実施形態では、工具本体２に装着された切削インサート４においてすくい面１３の四辺をなす切れ刃５のうち、工具本体２の先端面１０から先端側へ向けて突出する切れ刃５Ａが先端切れ刃とされており、工具本体２の外周面から径方向外側へ向けて突出する切れ刃５Ｂが外周切れ刃とされている。また、この切削インサート４の周面を構成する４つの側面１５は、切れ刃５の逃げ面とされており、これら側面１５のうち、先端切れ刃５Ａに連なる側面１５Ａが先端逃げ面とされ、外周切れ刃５Ｂに連なる側面１５Ｂが外周逃げ面とされている。   Further, the intersecting ridge line between the rake face 13 and the side face 15 is the cutting edge 5. In the present embodiment, among the cutting edges 5 forming the four sides of the rake face 13 in the cutting insert 4 attached to the tool body 2, the cutting edge 5 </ b> A protruding from the distal end surface 10 of the tool body 2 toward the distal end is cut off. A cutting edge 5B that protrudes radially outward from the outer peripheral surface of the tool body 2 is an outer peripheral cutting edge. Further, the four side surfaces 15 constituting the peripheral surface of the cutting insert 4 are flank surfaces of the cutting edge 5, and among these side surfaces 15, a side surface 15 </ b> A connected to the tip cutting edge 5 </ b> A is a tip flank surface, A side surface 15B connected to the outer peripheral cutting edge 5B is an outer peripheral flank.

また、切削インサート４には、すくい面１３及び着座面１４の中央に開口して該切削インサート４を厚さ方向に貫通する取付孔１６が形成されている。この切削インサート４は、取付孔１６の中心軸について４回対称（９０°回転対称）に形成されている。   Further, the cutting insert 4 is formed with an attachment hole 16 that opens in the center of the rake face 13 and the seating face 14 and penetrates the cutting insert 4 in the thickness direction. The cutting insert 4 is formed four times symmetrical (90 ° rotational symmetry) with respect to the central axis of the mounting hole 16.

図４に示されるように、工具本体２のインサート取付座３は、チップポケット１２の工具回転方向Ｔ前方側を向く壁部を、切削インサート４の形状に対応して四角形穴状に切り欠いたように形成されている。インサート取付座３は、切削インサート４の着座面１４に当接される底面１７と、この底面１７から立ち上がるように形成されて切削インサート４の側面１５に当接される一対の壁面１８、１９とを有している。   As shown in FIG. 4, the insert mounting seat 3 of the tool body 2 has a wall portion facing the front side in the tool rotation direction T of the chip pocket 12 cut out into a square hole shape corresponding to the shape of the cutting insert 4. It is formed as follows. The insert mounting seat 3 includes a bottom surface 17 that is in contact with the seating surface 14 of the cutting insert 4, and a pair of wall surfaces 18 and 19 that are formed so as to rise from the bottom surface 17 and abut on the side surface 15 of the cutting insert 4. have.

インサート取付座３の底面１７は四角形状をなしており、その略中央部には、切削インサート４の取付孔１６に挿通されたクランプネジ２０が螺着されるクランプネジ穴２１が穿設されている。また、一対の壁面１８、１９のうち、一方の壁面１８は、先端側を向くように底面１７から立ち上げられており、他方の壁面１９は、径方向外側を向くように底面１７から立ち上げられている。これら壁面１８、１９には、切削インサート４の側面１５の前述した傾斜に対応する傾斜面が形成されている。   The bottom surface 17 of the insert mounting seat 3 has a rectangular shape, and a clamp screw hole 21 into which a clamp screw 20 inserted through the mounting hole 16 of the cutting insert 4 is screwed is formed at a substantially central portion thereof. Yes. Further, of the pair of wall surfaces 18 and 19, one wall surface 18 is raised from the bottom surface 17 so as to face the distal end side, and the other wall surface 19 is raised from the bottom surface 17 so as to face radially outside. It has been. The wall surfaces 18 and 19 are formed with inclined surfaces corresponding to the aforementioned inclination of the side surface 15 of the cutting insert 4.

また、底面１７のクランプネジ穴２１は、切削インサート４の取付孔１６に対して、一対の壁面１８、１９同士の間に位置する該底面１７の角部側に僅かに偏心するように配置されており、このクランプネジ穴２１にクランプネジ２０がねじ込まれることにより、該クランプネジ２０の頭部によって切削インサート４が前記角部側に押圧されて、この切削インサート４において一対の壁面１８、１９にそれぞれ対向する側面１５が、これら壁面１８、１９に当接可能とされている。   Further, the clamp screw hole 21 of the bottom surface 17 is arranged so as to be slightly eccentric to the corner portion side of the bottom surface 17 located between the pair of wall surfaces 18 and 19 with respect to the mounting hole 16 of the cutting insert 4. When the clamp screw 20 is screwed into the clamp screw hole 21, the cutting insert 4 is pressed toward the corner by the head of the clamp screw 20, and a pair of wall surfaces 18, 19 is formed in the cutting insert 4. The side surfaces 15 that face each other can contact the wall surfaces 18 and 19.

また、インサート取付座３において一対の壁面１８、１９同士の間に位置する底面１７の角部には、これら壁面１８、１９よりも後退するように凹状とされたぬすみ部２２が形成されている。   Further, a corner portion of the bottom surface 17 located between the pair of wall surfaces 18 and 19 in the insert mounting seat 3 is formed with a relief portion 22 that is recessed so as to recede from the wall surfaces 18 and 19. .

また、図４において、工具本体２には、インサート取付座３における一対の壁面１８、１９のうち一方の壁面１８に開口されて、該インサート取付座３に隣接する凹所２３が形成されている。本実施形態では、凹所２３はインサート取付座３の基端側に隣接配置されており、該インサート取付座３よりも深い四角形穴状に形成されている（図３を参照）。具体的に、図４において、凹所２３は、インサート取付座３の基端側部分を切り欠くように形成されていて、該インサート取付座３内に連通している。   In FIG. 4, the tool body 2 is formed with a recess 23 that is opened in one wall surface 18 of the pair of wall surfaces 18 and 19 in the insert mounting seat 3 and is adjacent to the insert mounting seat 3. . In this embodiment, the recess 23 is disposed adjacent to the base end side of the insert mounting seat 3 and is formed in a rectangular hole shape deeper than the insert mounting seat 3 (see FIG. 3). Specifically, in FIG. 4, the recess 23 is formed so as to cut out a base end side portion of the insert mounting seat 3 and communicates with the insert mounting seat 3.

凹所２３は、インサート取付座３の底面１７と同じ向き（つまり工具回転方向Ｔ前方側）を向く支持面２４を有しており、該支持面２４には調整ネジ穴２５が穿設されている。   The recess 23 has a support surface 24 facing the same direction as the bottom surface 17 of the insert mounting seat 3 (that is, the front side in the tool rotation direction T), and an adjustment screw hole 25 is formed in the support surface 24. Yes.

そして、図３（ａ）（ｂ）に示されるように、この凹所２３には、筒状をなす調整部材２６が配設される。調整部材２６は、鋼材等からなり、凹所２３の形状に対応して四角形筒状をなしているとともに、該凹所２３に工具回転方向Ｔ前方側から挿入される。   As shown in FIGS. 3A and 3B, a cylindrical adjusting member 26 is disposed in the recess 23. The adjustment member 26 is made of steel or the like, has a quadrangular cylindrical shape corresponding to the shape of the recess 23, and is inserted into the recess 23 from the front side in the tool rotation direction T.

図３（ａ）（ｂ）及び図４において、凹所２３に挿入された調整部材２６は、その工具本体２の基端側を向く外面３７が、凹所２３において工具本体２の先端側を向く内面３８に当接される。また、調整部材２６において工具本体２の径方向を向く両外面３２は、凹所２３において径方向を向く両内面３３に摺接するようになっている。また、調整部材２６において工具本体２の先端側を向く外面３９と、凹所２３において工具本体２の基端側を向く内面４０との間には、隙間が設けられている。   3A, 3 </ b> B, and 4, the adjustment member 26 inserted into the recess 23 has an outer surface 37 that faces the proximal end side of the tool body 2, and the distal end side of the tool body 2 extends in the recess 23. It abuts the facing inner surface 38. Further, both outer surfaces 32 of the adjustment member 26 facing the radial direction of the tool body 2 are in sliding contact with both inner surfaces 33 of the recess 23 facing the radial direction. Further, a gap is provided between the outer surface 39 of the adjustment member 26 facing the distal end side of the tool body 2 and the inner surface 40 of the recess 23 facing the proximal end side of the tool body 2.

調整部材２６は、該調整部材２６をその中心線Ｃ方向に貫通するとともに、凹所２３の調整ネジ穴２５に螺合する調整ネジ２７が挿通される貫通孔２８と、該貫通孔２８に連通するスリット２９とを有し、中心線Ｃに交差する方向に弾性変形可能とされている。具体的に、調整部材２６は、凹所２３内とインサート取付座３内とが連通する向き（本実施形態では軸線Ｏ方向に連通している。図４を参照）に、弾性変形可能となっている。   The adjustment member 26 passes through the adjustment member 26 in the direction of the center line C, and communicates with the through hole 28 through which an adjustment screw 27 screwed into the adjustment screw hole 25 of the recess 23 is inserted. And a slit 29 that can be elastically deformed in a direction intersecting the center line C. Specifically, the adjustment member 26 can be elastically deformed in a direction in which the inside of the recess 23 communicates with the inside of the insert mounting seat 3 (in this embodiment, it communicates in the direction of the axis O. See FIG. 4). ing.

調整部材２６は、工具本体２に装着された状態でその中心線Ｃ方向の工具回転方向Ｔ後方側を向く端面が、凹所２３の支持面２４に当接される被支持面３０とされている。図３（ｂ）に示される工具本体２を径方向から見た側断面視で、被支持面３０は、工具回転方向Ｔ後方側に向かって凸とされたＶ字状をなしている。   An end surface of the adjustment member 26 facing the tool rotation direction T in the center line C direction when mounted on the tool body 2 is a supported surface 30 that is in contact with the support surface 24 of the recess 23. Yes. In a side sectional view of the tool body 2 shown in FIG. 3B viewed from the radial direction, the supported surface 30 has a V-shape that is convex toward the rear side in the tool rotation direction T.

具体的に、図３（ｂ）に示されるインサート取付座３及び凹所２３を含む断面視で、調整部材２６の被支持面３０は、中心線Ｃに直交する方向のうち後述するインサート当接面３５側（図３（ｂ）における下側）に向かうに従い漸次凹所２３の支持面２４から離間するように形成されている。また本実施形態においては、被支持面３０は、中心線Ｃに直交する方向のうちインサート当接面３５とは反対側（図３（ｂ）における上側）に向かっても、漸次支持面２４から離間するように形成されている。   Specifically, in a cross-sectional view including the insert mounting seat 3 and the recess 23 shown in FIG. 3B, the supported surface 30 of the adjustment member 26 is an insert contact described later in a direction orthogonal to the center line C. It forms so that it may space apart from the support surface 24 of the recess 23 gradually toward the surface 35 side (lower side in FIG.3 (b)). Further, in the present embodiment, the supported surface 30 gradually moves from the support surface 24 toward the side opposite to the insert contact surface 35 in the direction orthogonal to the center line C (upper side in FIG. 3B). It is formed so as to be separated.

図５（ａ）〜（ｃ）に示されるように、調整部材２６において、中心線Ｃ方向に沿う被支持面３０とは反対側を向く端面（つまりこの調整部材２６が工具本体２に装着された状態で、工具回転方向Ｔ前方側を向く面）３１には、スリット２９が開口されている。図３（ｂ）において、スリット２９は、工具本体２の径方向にこの調整部材２６を貫通するように、該調整部材２６の貫通孔２８を挟んだ両側に一対形成されているとともに、中心線Ｃ方向に沿って延びている。   As shown in FIGS. 5A to 5C, in the adjustment member 26, an end surface facing the opposite side to the supported surface 30 along the center line C direction (that is, the adjustment member 26 is attached to the tool body 2. In this state, a slit 29 is opened in the surface 31) which faces the front side of the tool rotation direction T. In FIG. 3B, a pair of slits 29 are formed on both sides of the adjustment member 26 so as to penetrate the adjustment member 26 in the radial direction of the tool body 2, and the center line It extends along the C direction.

図５（ｂ）において、スリット２９の中心線Ｃ方向の被支持面３０側の端部は、該被支持面３０には開口されておらず、該スリット２９の中心線Ｃ方向に沿う被支持面３０側の端部には、円形孔部２９ａが形成されている。円形孔部２９ａは、調整部材２６の中心線Ｃ方向に沿う中央部よりも被支持面３０側に位置しており、調整部材２６の弾性変形量が大きく確保されている。   In FIG. 5B, the end of the slit 29 on the supported surface 30 side in the center line C direction is not opened on the supported surface 30 and is supported along the center line C direction of the slit 29. A circular hole 29a is formed at the end on the surface 30 side. The circular hole portion 29a is located closer to the supported surface 30 than the central portion along the center line C direction of the adjustment member 26, and the elastic deformation amount of the adjustment member 26 is ensured to be large.

このようなスリット２９が形成されていることで、調整部材２６は、円形孔部２９ａ近傍を支点としてスリット２９幅を狭めるように（又は広げるように）、中心線Ｃ方向に交差する向きに弾性変形可能である。具体的には、図３（ｂ）において、調整部材２６は、その中心線Ｃに略直交する向き（図３（ｂ）における上下方向、つまり軸線Ｏ方向）に弾性変形可能である。   By forming such a slit 29, the adjustment member 26 is elastic in a direction intersecting the center line C direction so that the width of the slit 29 is narrowed (or widened) with the vicinity of the circular hole 29a as a fulcrum. It can be deformed. Specifically, in FIG. 3B, the adjustment member 26 can be elastically deformed in a direction (vertical direction in FIG. 3B, that is, the axis O direction) substantially perpendicular to the center line C thereof.

図３（ｂ）において、調整部材２６の外面のうち、工具本体２の基端側（図３（ｂ）における上側）を向く外面３７は、その中心線Ｃ方向の被支持面３０側部分が、端面３１側部分よりも一段窪まされるように後退して形成されている。また、調整部材２６の外面のうち、工具本体２の先端側（図３（ｂ）における下側）を向く外面３９には、他の部分よりも一段突出して突起部３４が形成されている。   3B, of the outer surface of the adjustment member 26, the outer surface 37 facing the base end side (the upper side in FIG. 3B) of the tool body 2 has a supported surface 30 side portion in the center line C direction. , It is formed so as to be recessed from the end face 31 side portion by one step. In addition, a protrusion 34 is formed on the outer surface 39 of the adjustment member 26 that faces the tip side of the tool body 2 (the lower side in FIG. 3B) and protrudes one step from the other portions.

突起部３４は、外面３９における中心線Ｃ方向の端面３１側の端部に配置されている。この突起部３４において、工具本体２の先端側を向く面は、切削インサート４の側面１５に当接されるインサート当接面３５となっている。   The protrusion 34 is disposed at the end of the outer surface 39 on the end surface 31 side in the center line C direction. The surface of the projection 34 facing the tip side of the tool body 2 is an insert contact surface 35 that contacts the side surface 15 of the cutting insert 4.

図３（ａ）に示されるように、調整部材２６が凹所２３に配設された状態で、突起部３４は、凹所２３からインサート取付座３内へ向けて出没可能に突出されるとともに、該突起部３４のインサート当接面３５も、一方の壁面１８からインサート取付座３内へ向けて出没可能に突出される。   As shown in FIG. 3A, in a state where the adjustment member 26 is disposed in the recess 23, the protrusion 34 protrudes from the recess 23 into the insert mounting seat 3 so as to be able to protrude and retract. Also, the insert abutting surface 35 of the projecting portion 34 also protrudes from the one wall surface 18 into the insert mounting seat 3 so as to be able to appear and retract.

また、図３（ｂ）において、インサート当接面３５は、中心線Ｃ方向に沿って被支持面３０側（つまり工具回転方向Ｔ後方側）に向かうに従い漸次工具本体２の先端側へ向かって、つまり図３（ａ）においては一方の壁面１８からの突出量が増大するように、傾斜して形成されている。   3B, the insert contact surface 35 gradually moves toward the tip end side of the tool body 2 toward the supported surface 30 side (that is, the rear side in the tool rotation direction T) along the center line C direction. That is, in FIG. 3A, it is formed so as to be inclined so that the amount of protrusion from one wall surface 18 increases.

インサート当接面３５は、切削インサート４の側面１５の傾斜に対応するように傾斜させられており、また調整部材２６がその突起部３４部分を工具本体２の基端側へ向けて弾性変形させられたときに、当該弾性変形の向きに対して垂直となるようにも形成されている。   The insert contact surface 35 is inclined so as to correspond to the inclination of the side surface 15 of the cutting insert 4, and the adjustment member 26 elastically deforms the protruding portion 34 toward the proximal end side of the tool body 2. When formed, it is also formed to be perpendicular to the direction of the elastic deformation.

具体的に、調整部材２６が、その突起部３４部分を工具本体２の基端側へ向けて弾性変形させられる際には、この弾性変形は、スリット２９の円形孔部２９ａ近傍を支点（中心）として該スリット２９の幅を狭めるように、つまり図３（ｂ）の断面視で工具本体２の基端側（図３（ｂ）における上側）へ向かうに従い漸次工具回転方向Ｔ後方側（図３（ｂ）における右側）へ向かって行われるが、インサート当接面３５は、このような弾性変形の向きに対して垂直な面となるように形成されているのである。
これにより、調整部材２６が弾性変形させられたときに、切削インサート４の側面１５とインサート当接面３５とが摺動（スライド移動）するようなことが抑制されて、調整部材２６の弾性変形量がより大きく確保されるとともに、後述する切れ刃５Ａ位置の調整量Ａを十分に確保できる。 Specifically, when the adjustment member 26 is elastically deformed with its protruding portion 34 toward the base end side of the tool body 2, the elastic deformation is caused by a fulcrum (center) in the vicinity of the circular hole 29 a of the slit 29. ) In such a manner that the width of the slit 29 is narrowed, that is, gradually toward the proximal end side (the upper side in FIG. 3B) of the tool body 2 in the sectional view of FIG. 3 (b), the insert contact surface 35 is formed to be a surface perpendicular to the direction of such elastic deformation.
Thereby, when the adjustment member 26 is elastically deformed, the side surface 15 of the cutting insert 4 and the insert contact surface 35 are prevented from sliding (sliding), and the adjustment member 26 is elastically deformed. A larger amount can be secured, and a sufficient adjustment amount A for the position of the cutting edge 5A described later can be secured sufficiently.

また、図５（ｂ）において、調整部材２６の貫通孔２８には、中心線Ｃ方向に沿って被支持面３０側に向かうに従い漸次縮径されるテーパ面３６が形成されている。テーパ面３６は、貫通孔２８における中心線Ｃ方向の端面３１側の端部に形成されていて、該端面３１に開口している。図３（ｂ）に示されるように、テーパ面３６には、調整ネジ２７の頭部が摺接されるようになっている。   5B, the through hole 28 of the adjustment member 26 is formed with a tapered surface 36 that is gradually reduced in diameter toward the supported surface 30 side along the center line C direction. The tapered surface 36 is formed at the end of the through hole 28 on the end surface 31 side in the center line C direction, and is open to the end surface 31. As shown in FIG. 3B, the head of the adjustment screw 27 is slidably contacted with the tapered surface 36.

次に、このように構成される刃先交換式切削工具１において、インサート取付座３に切削インサート４を装着して、該切削インサート４の切れ刃５位置を調整する方法について説明する。   Next, a method for adjusting the position of the cutting edge 5 of the cutting insert 4 by mounting the cutting insert 4 on the insert mounting seat 3 in the cutting edge exchange type cutting tool 1 configured as described above will be described.

まず、凹所２３に調整部材２６を挿入した状態から、切削インサート４の取付孔１６にクランプネジ２０を挿通して、インサート取付座３の底面１７に穿設されたクランプネジ穴２１に螺着する。クランプネジ穴２１は、前述したように取付孔１６に対してぬすみ部２２側に偏心した位置に穿設されているため、クランプネジ２０をねじ込んでいくと、図６（ａ）に示されるように、インサート取付座３の一対の壁面１８、１９に、切削インサート４の側面１５がそれぞれ当接させられる。   First, from the state in which the adjusting member 26 is inserted into the recess 23, the clamp screw 20 is inserted into the mounting hole 16 of the cutting insert 4 and screwed into the clamp screw hole 21 formed in the bottom surface 17 of the insert mounting seat 3. To do. As described above, since the clamp screw hole 21 is formed at a position eccentric to the side of the thinning portion 22 with respect to the mounting hole 16, when the clamp screw 20 is screwed in, as shown in FIG. Further, the side surface 15 of the cutting insert 4 is brought into contact with the pair of wall surfaces 18 and 19 of the insert mounting seat 3.

このようにクランプネジ２０をねじ込んでいく際、調整部材２６の突起部３４におけるインサート当接面３５は、切削インサート４の側面１５に凹所２３内へ向けて押圧されるとともに、調整部材２６が弾性変形することで後退されていく（図６（ｂ）を参照）。また図６（ａ）において、これによりインサート当接面３５は、一方の壁面１８に略面一とされている。   When the clamp screw 20 is screwed in this way, the insert abutment surface 35 of the projection 34 of the adjustment member 26 is pressed against the side surface 15 of the cutting insert 4 into the recess 23, and the adjustment member 26 is It is retracted by elastic deformation (see FIG. 6B). In FIG. 6A, the insert contact surface 35 is thereby substantially flush with the one wall surface 18.

次いで、調整部材２６の貫通孔２８に挿通された調整ネジ２７を、凹所２３の調整ネジ穴２５にねじ込むことにより、図３（ａ）（ｂ）に示されるように、該調整ネジ２７の頭部を貫通孔２８のテーパ面３６に摺接させつつ、調整部材２６を復元変形させる。これにより、インサート当接面３５が切削インサート４の側面１５を工具本体２の先端側に向けて押し出すとともに、この切削インサート４の切れ刃５Ａ位置が、調整量Ａの範囲で調整されるようになっている。   Next, the adjustment screw 27 inserted through the through hole 28 of the adjustment member 26 is screwed into the adjustment screw hole 25 of the recess 23, so that the adjustment screw 27 of the adjustment member 27 is shown in FIGS. The adjustment member 26 is restored and deformed while the head is brought into sliding contact with the tapered surface 36 of the through hole 28. As a result, the insert contact surface 35 pushes the side surface 15 of the cutting insert 4 toward the distal end side of the tool body 2, and the position of the cutting edge 5A of the cutting insert 4 is adjusted within the range of the adjustment amount A. It has become.

尚、本明細書でいう「復元変形」とは、調整部材２６が前述のように弾性変形させられる前の初期状態に戻されることを指しているが、それとともに、調整ネジ２７のねじ込みによって当該初期状態を越えて、前記弾性変形とは逆向きに調整部材２６が弾性変形させられる変形をも含む概念である。   The term “restoration deformation” as used in the present specification means that the adjustment member 26 is returned to the initial state before being elastically deformed as described above. It is a concept that includes a deformation in which the adjustment member 26 is elastically deformed in an opposite direction to the elastic deformation beyond the initial state.

以上説明した本実施形態の刃先交換式切削工具１及びその切れ刃位置調整方法では、クランプネジ２０をねじ込んで切削インサート４の側面１５により押圧することで、調整部材２６のインサート当接面３５部分（突起部３４）を弾性変形させつつ後退させた後、調整ネジ２７をねじ込んで当該インサート当接面３５部分を復元変形させていることから、切れ刃５Ａ位置（切れ刃５Ａの突出量）の調整量Ａを大きく確保することができる。具体的に、本実施形態とは異なり、例えば単純に調整ネジ２７をねじ込むことのみによってインサート当接面３５部分を切削インサート４側（工具本体２の先端側）に向けて弾性変形させる場合の切れ刃５Ａ位置の調整量に対して、本実施形態によれば、２倍程度又はそれ以上の調整量Ａを確保することが可能となる。   In the cutting edge-exchangeable cutting tool 1 and the cutting edge position adjusting method according to the present embodiment described above, the insert contact surface 35 portion of the adjusting member 26 can be obtained by screwing the clamp screw 20 and pressing it with the side surface 15 of the cutting insert 4. After the (projection 34) is retracted while being elastically deformed, the adjustment screw 27 is screwed in to restore and deform the insert abutment surface 35, so that the position of the cutting edge 5A (the amount of protrusion of the cutting edge 5A) is A large adjustment amount A can be secured. Specifically, unlike the present embodiment, for example, when the adjustment abutment screw 27 is simply screwed in, the insert abutment surface 35 is elastically deformed toward the cutting insert 4 side (the tip end side of the tool body 2). With respect to the adjustment amount of the blade 5A position, according to this embodiment, an adjustment amount A of about twice or more can be ensured.

また、本実施形態とは異なる従来の方法では、例えば、切削インサート４をクランプネジ２０で仮止めした状態から切れ刃５Ａ位置を調整し、この調整後にクランプネジ２０をねじ込む（本締めする）ことで切削インサート４をインサート取付座３に固定していたが、このような方法では作業が複雑となるばかりか、本締め時に切削インサート４が僅かに移動するなどして切れ刃５Ａ位置の微調整が困難であった。
一方、本実施形態によれば、切削インサート４をクランプネジ２０で本締めした状態から、調整ネジ２７のねじ込み量に応じて該クランプネジ２０を撓ませることで、切れ刃５Ａ位置を微調整可能である。さらに、このようにねじ込んだ調整ネジ２７を緩めた場合には、撓まされたクランプネジ２０が復元変形させられて、切れ刃５Ａ位置を工具本体２の基端側に向けて後退させることも可能であるから、切れ刃５Ａの振れ精度（切れ刃５Ａの突出量の精度）が十分に高められつつも、切れ刃５Ａ位置の微調整が非常に簡単であり、作業性に優れている。 Further, in the conventional method different from the present embodiment, for example, the position of the cutting edge 5A is adjusted from the state in which the cutting insert 4 is temporarily fixed with the clamp screw 20, and the clamp screw 20 is screwed (finally tightened) after this adjustment. The cutting insert 4 is fixed to the insert mounting seat 3 in this way, but this method not only complicates the work, but also finely adjusts the position of the cutting edge 5A by moving the cutting insert 4 slightly during final tightening. It was difficult.
On the other hand, according to the present embodiment, the position of the cutting edge 5A can be finely adjusted by bending the clamp screw 20 in accordance with the screwing amount of the adjustment screw 27 from the state where the cutting insert 4 is finally tightened with the clamp screw 20. It is. Further, when the adjusting screw 27 screwed in this way is loosened, the bent clamp screw 20 is restored and deformed, and the position of the cutting edge 5A is moved backward toward the base end side of the tool body 2. Since it is possible, the fine adjustment of the position of the cutting edge 5A is very simple and the workability is excellent, while the deflection accuracy of the cutting edge 5A (accuracy of the protruding amount of the cutting edge 5A) is sufficiently enhanced.

尚、前述したようにクランプネジ２０を本締めした状態で、切削インサート４の側面１５はインサート取付座３の一対の壁面１８、１９にそれぞれ当接されている（図６（ａ）を参照）ことから、次いで調整ネジ２７のねじ込みにより工具本体２の先端側に向けて切れ刃５Ａの突出量を調整した後においても、これら一対の壁面１８、１９のうち、他方の壁面１９には切削インサート４の側面１５が当接させられた状態となっている（図３（ａ）を参照）。   As described above, the side surface 15 of the cutting insert 4 is in contact with the pair of wall surfaces 18 and 19 of the insert mounting seat 3 with the clamp screw 20 fully tightened (see FIG. 6A). Therefore, even after adjusting the protruding amount of the cutting edge 5A toward the tip side of the tool body 2 by screwing the adjusting screw 27, the other wall surface 19 out of the pair of wall surfaces 18 and 19 has a cutting insert. The four side surfaces 15 are in contact with each other (see FIG. 3A).

従って、本実施形態のように工具本体２の先端側に向けて切れ刃５Ａ位置を調整した場合に、径方向外側を向く切れ刃５Ｂの位置についても、精度よく位置決めされている。   Therefore, when the position of the cutting edge 5A is adjusted toward the tip side of the tool body 2 as in the present embodiment, the position of the cutting edge 5B that faces radially outward is also accurately positioned.

このように、本実施形態によれば、切削インサート４をクランプネジ２０でねじ込んで固定（本締め）した後で、調整ネジ２７のねじ込み量によって該クランプネジ２０を撓ませることで、切れ刃５Ａ位置を調整可能としたので、工具本体２の先端側へ向けた切れ刃５Ａ位置（切れ刃５Ａの突出量）を簡単に、かつ精度よく微調整できる。これにより、高品位な切削加工が安定して維持されるとともに、切削効率が向上して、生産性が高められる。   Thus, according to the present embodiment, after the cutting insert 4 is screwed and fixed (finally tightened) with the clamp screw 20, the cutting screw 5A is bent by bending the clamp screw 20 with the screwing amount of the adjusting screw 27. Since the position can be adjusted, the position of the cutting edge 5A toward the tip side of the tool body 2 (the amount of protrusion of the cutting edge 5A) can be easily and finely adjusted. As a result, high-quality cutting is stably maintained, cutting efficiency is improved, and productivity is increased.

また、図３（ｂ）に示される側断面視で、調整部材２６の被支持面３０が、中心線Ｃに直交する方向のうちインサート当接面３５側に向かうに従い漸次凹所２３の支持面２４から離間するように形成されているので、調整ネジ２７を調整部材２６の貫通孔２８に挿通して凹所２３の調整ネジ穴２５にねじ込んでいくときに、被支持面３０と支持面２４との当接によって調整部材２６の復元変形が妨げられるような事態を回避でき、前述した効果がより確実に得られることになる。   3B, the supported surface 30 of the adjustment member 26 gradually supports the recessed surface 23 toward the insert contact surface 35 in the direction orthogonal to the center line C. Since the adjustment screw 27 is inserted through the through hole 28 of the adjustment member 26 and screwed into the adjustment screw hole 25 of the recess 23, the supported surface 30 and the support surface 24 are formed. A situation where the restoring deformation of the adjusting member 26 is hindered by the contact with can be avoided, and the above-described effects can be obtained more reliably.

すなわち、調整部材２６を復元変形させる際には、該調整部材２６の被支持面３０においてインサート当接面３５側に位置する部位は、本実施形態のように凹所２３の支持面２４に当接されていないことが好ましく、これにより、調整部材２６のインサート当接面３５部分が確実に復元変形されやすくなる。   That is, when the adjustment member 26 is restored and deformed, the portion of the supported surface 30 of the adjustment member 26 located on the insert contact surface 35 side is in contact with the support surface 24 of the recess 23 as in the present embodiment. It is preferable that they are not in contact with each other, and thereby, the insert contact surface 35 portion of the adjusting member 26 is surely easily restored and deformed.

尚、本発明は前述の実施形態に限定されるものではなく、本発明の趣旨を逸脱しない範囲において種々の変更を加えることが可能である。   The present invention is not limited to the above-described embodiment, and various modifications can be made without departing from the spirit of the present invention.

例えば、前述の実施形態では、工具本体２に装着された切削インサート４の切れ刃５のうち、工具本体２の先端側に向けて切れ刃５Ａが突出されており、工具本体２の径方向外側に向けて切れ刃５Ｂが突出されているとしたが、これに限定されるものではない。すなわち、突出量を調整可能な切れ刃５Ａ以外の切れ刃５Ｂは、工具本体２から突出されていなくても構わない。   For example, in the above-described embodiment, among the cutting edges 5 of the cutting insert 4 attached to the tool body 2, the cutting edge 5 </ b> A protrudes toward the distal end side of the tool body 2, and the tool body 2 is radially outside. Although the cutting edge 5B is projected toward the surface, it is not limited to this. That is, the cutting blades 5B other than the cutting blade 5A that can adjust the protruding amount may not protrude from the tool body 2.

また、前述の実施形態では、インサート取付座３における工具本体２の基端側に隣接して凹所２３及び調整部材２６が配設されており、該インサート取付座３に装着される切削インサート４の工具本体２の先端側に配置される切れ刃５Ａ位置（突出量）を、軸線Ｏ方向に微調整可能な構成としているが、これに限定されるものではない。   In the above-described embodiment, the recess 23 and the adjustment member 26 are disposed adjacent to the base end side of the tool body 2 in the insert mounting seat 3, and the cutting insert 4 mounted on the insert mounting seat 3. The position of the cutting edge 5A (projection amount) arranged on the tip side of the tool body 2 can be finely adjusted in the direction of the axis O, but is not limited thereto.

すなわち、例えば、インサート取付座３における工具本体２の径方向内側に隣接して凹所２３及び調整部材２６が配設されるとともに、該インサート取付座３に装着される切削インサート４の工具本体２の径方向外側に配置される切れ刃５Ｂ位置を、工具径方向に微調整可能な構成としてもよい。この場合においても、前述の実施形態で説明した効果と同様の効果を得ることができる。   That is, for example, the recess 23 and the adjustment member 26 are disposed adjacent to the inner side in the radial direction of the tool body 2 in the insert mounting seat 3, and the tool body 2 of the cutting insert 4 mounted on the insert mounting seat 3. It is good also as a structure which can finely adjust the position of the cutting-blade 5B arrange | positioned on the radial direction outer side of a tool to a tool radial direction. Even in this case, the same effects as those described in the above embodiment can be obtained.

また、前述の実施形態では、切削インサート４が四角形平板状をなしているとしたが、これに限定されるものではなく、四角形以外の平板状とされていてもよい。   In the above-described embodiment, the cutting insert 4 has a rectangular flat plate shape. However, the present invention is not limited to this, and the cutting insert 4 may have a flat plate shape other than a square shape.

１ 刃先交換式切削工具
２ 工具本体
３ インサート取付座
４ 切削インサート
５ 切れ刃
５Ａ 工具本体の先端側に突出する切れ刃（先端切れ刃）
５Ｂ 工具本体の径方向外側に突出する切れ刃（外周切れ刃）
１４ 着座面
１５ 側面（逃げ面）
１６ 取付孔
１７ 底面
１８ 壁面（一方の壁面）
１９ 壁面（他方の壁面）
２０ クランプネジ
２１ クランプネジ穴
２３ 凹所
２４ 支持面
２５ 調整ネジ穴
２６ 調整部材
２７ 調整ネジ
２８ 貫通孔
２９ スリット
３０ 被支持面
３５ インサート当接面
３６ テーパ面
Ｃ 調整部材の中心線
Ｏ 工具本体の軸線 DESCRIPTION OF SYMBOLS 1 Cutting edge exchange type cutting tool 2 Tool body 3 Insert mounting seat 4 Cutting insert 5 Cutting edge 5A Cutting edge which protrudes to the front end side of a tool body (tip cutting edge)
5B Cutting edge projecting radially outward of tool body (peripheral cutting edge)
14 Seating surface 15 Side (flank)
16 Mounting hole 17 Bottom surface 18 Wall surface (one wall surface)
19 Wall surface (the other wall surface)
20 Clamp screw 21 Clamp screw hole 23 Recess 24 Support surface 25 Adjustment screw hole 26 Adjustment member 27 Adjustment screw 28 Through hole 29 Slit 30 Supported surface 35 Insert contact surface 36 Taper surface C Centerline of adjustment member O Tool body Axis

Claims (3)

軸線回りに回転させられる円盤状の工具本体と、該工具本体の先端外周部に形成されたインサート取付座に着脱可能に装着され、前記工具本体の先端側及び径方向外側の少なくともいずれかに向けて切れ刃を突出させる切削インサートとを備える刃先交換式切削工具であって、
前記インサート取付座は、平板状をなす前記切削インサートの厚さ方向を向く一対の外面のうち着座面に当接される底面と、この底面から立ち上がるように形成されて前記切削インサートの厚さ方向に直交する方向を向く側面に当接される一対の壁面とを有し、
前記切削インサートの側面は、該切削インサートの厚さ方向に沿って前記着座面側に向かうに従い漸次インサート内側に後退するように傾斜して形成され、
前記切削インサートには、該切削インサートを厚さ方向に貫通する取付孔が形成されており、
前記取付孔に挿通されたクランプネジが、前記インサート取付座の底面に穿設されたクランプネジ穴にねじ込まれることにより、前記インサート取付座の前記一対の壁面に、前記切削インサートの側面が当接可能とされており、
前記工具本体には、前記一対の壁面のうち一方の壁面に開口されて、前記インサート取付座に隣接する凹所が形成され、
前記凹所は、前記インサート取付座の底面と同じ向きを向く支持面を有するとともに、該支持面には調整ネジ穴が穿設されており、
前記凹所には筒状をなす調整部材が配設され、該凹所の前記支持面には、この調整部材の被支持面が当接され、
前記調整部材は、該調整部材をその中心線方向に貫通するとともに、前記調整ネジ穴に螺合する調整ネジが挿通される貫通孔と、該貫通孔に連通するスリットとを有し、前記中心線に交差する方向に弾性変形可能とされ、
前記貫通孔は、その中心線方向に沿って前記被支持面側に向かうに従い漸次縮径されるとともに前記調整ネジの頭部に摺接されるテーパ面を有し、
前記調整部材は、前記一方の壁面から出没可能に突出するインサート当接面を有し、
前記インサート当接面は、前記中心線方向に沿って前記被支持面側に向かうに従い漸次前記一方の壁面からの突出量が増大するように傾斜して形成され、前記クランプネジをねじ込んだ際に、前記切削インサートの側面により前記凹所内へ向けて押圧されるとともに、前記調整部材が弾性変形することで後退するようになされ、
前記調整ネジをねじ込むことにより、該調整ネジの頭部が前記調整部材のテーパ面に摺接しつつ前記調整部材を復元変形させて、前記インサート当接面が前記切削インサートの側面を前記工具本体の先端側又は径方向外側に向けて押し出すとともに、この切削インサートの切れ刃位置を調整可能としたことを特徴とする刃先交換式切削工具。 A disc-shaped tool body that is rotated around an axis, and an insert mounting seat that is formed on the outer periphery of the tip of the tool body are detachably mounted and directed toward at least one of the tip side and the radially outer side of the tool body. A cutting edge exchangeable cutting tool provided with a cutting insert for projecting the cutting edge,
The insert mounting seat is formed so as to stand up from the bottom surface of a pair of outer surfaces facing the thickness direction of the cutting insert having a flat plate shape, and to rise from the bottom surface. A pair of wall surfaces that are in contact with side surfaces facing in a direction orthogonal to the
The side surface of the cutting insert is formed to be inclined so as to gradually recede toward the inside of the insert as it goes toward the seating surface side along the thickness direction of the cutting insert,
The cutting insert has an attachment hole that penetrates the cutting insert in the thickness direction,
When the clamp screw inserted through the mounting hole is screwed into a clamp screw hole drilled in the bottom surface of the insert mounting seat, the side surface of the cutting insert abuts against the pair of wall surfaces of the insert mounting seat. Is possible,
The tool body is opened in one wall surface of the pair of wall surfaces, and a recess is formed adjacent to the insert mounting seat.
The recess has a support surface facing the same direction as the bottom surface of the insert mounting seat, and an adjustment screw hole is formed in the support surface.
A cylindrical adjustment member is disposed in the recess, and the supported surface of the adjustment member is in contact with the support surface of the recess,
The adjustment member includes a through hole that passes through the adjustment member in the direction of the center line thereof, is inserted through an adjustment screw that is screwed into the adjustment screw hole, and a slit that communicates with the through hole. It can be elastically deformed in the direction intersecting the line,
The through-hole has a tapered surface that is gradually reduced in diameter as it goes toward the supported surface along the center line direction and slidably contacts the head of the adjustment screw;
The adjustment member has an insert contact surface that protrudes from the one wall surface so as to be able to protrude and retract,
The insert abutment surface is formed to be inclined so that the amount of protrusion from the one wall surface gradually increases toward the supported surface side along the center line direction, and when the clamp screw is screwed in The side surface of the cutting insert is pressed toward the inside of the recess, and the adjusting member is elastically deformed to retreat.
By screwing in the adjustment screw, the adjustment screw is restored and deformed while the head of the adjustment screw is in sliding contact with the taper surface of the adjustment member, and the insert contact surface makes the side surface of the cutting insert of the tool body. A cutting edge-exchangeable cutting tool characterized in that the cutting edge position of the cutting insert can be adjusted while being pushed out toward the tip side or radially outward. 請求項１に記載の刃先交換式切削工具であって、
前記インサート取付座及び前記凹所を含む断面視で、
前記調整部材の前記被支持面は、前記中心線に直交する方向のうち前記インサート当接面側に向かうに従い漸次前記凹所の前記支持面から離間するように形成されていることを特徴とする刃先交換式切削工具。 The cutting edge replacement type cutting tool according to claim 1,
In a cross-sectional view including the insert mounting seat and the recess,
The supported surface of the adjustment member is formed so as to gradually move away from the support surface of the recess as it goes to the insert contact surface side in a direction orthogonal to the center line. Replaceable cutting tool. 軸線回りに回転させられる円盤状の工具本体と、該工具本体の先端外周部に形成されたインサート取付座に着脱可能に装着され、前記工具本体の先端側及び径方向外側の少なくともいずれかに向けて切れ刃を突出させる切削インサートとを備える刃先交換式切削工具の切れ刃位置調整方法であって、
前記インサート取付座は、平板状をなす前記切削インサートの厚さ方向を向く一対の外面のうち着座面に当接される底面と、この底面から立ち上がるように形成されて前記切削インサートの厚さ方向に直交する方向を向く側面に当接される一対の壁面とを有し、
前記切削インサートの側面は、該切削インサートの厚さ方向に沿って前記着座面側に向かうに従い漸次インサート内側に後退するように傾斜して形成され、
前記切削インサートには、該切削インサートを厚さ方向に貫通する取付孔が形成されており、
前記工具本体には、前記一対の壁面のうち一方の壁面に開口されて、前記インサート取付座に隣接する凹所が形成され、
前記凹所は、前記インサート取付座の底面と同じ向きを向く支持面を有するとともに、該支持面には調整ネジ穴が穿設されており、
前記凹所には筒状をなす調整部材が配設され、該凹所の前記支持面には、この調整部材の被支持面が当接され、
前記調整部材は、該調整部材をその中心線方向に貫通するとともに、前記調整ネジ穴に螺合する調整ネジが挿通される貫通孔と、該貫通孔に連通するスリットとを有し、前記中心線に交差する方向に弾性変形可能とされ、
前記貫通孔は、その中心線方向に沿って前記被支持面側に向かうに従い漸次縮径されるとともに前記調整ネジの頭部に摺接されるテーパ面を有し、
前記調整部材は、前記一方の壁面から出没可能に突出するインサート当接面を有し、
前記インサート当接面は、前記中心線方向に沿って前記被支持面側に向かうに従い漸次前記一方の壁面からの突出量が増大するように傾斜して形成され、
前記取付孔にクランプネジを挿通して、前記インサート取付座の底面に穿設されたクランプネジ穴にねじ込むことにより、前記インサート取付座の前記一対の壁面に、前記切削インサートの側面を当接させ、前記調整部材のインサート当接面は、前記切削インサートの側面により前記凹所内へ向けて押圧されるとともに、前記調整部材が弾性変形することで後退され、
前記調整ネジをねじ込むことにより、該調整ネジの頭部を前記調整部材のテーパ面に摺接させつつ前記調整部材を復元変形させて、前記インサート当接面が前記切削インサートの側面を前記工具本体の先端側又は径方向外側に向けて押し出すとともに、この切削インサートの切れ刃位置を調整可能としたことを特徴とする刃先交換式切削工具の切れ刃位置調整方法。 A disc-shaped tool body that is rotated around an axis, and an insert mounting seat that is formed on the outer periphery of the tip of the tool body are detachably mounted and directed toward at least one of the tip side and the radially outer side of the tool body. A cutting edge position adjusting method of a cutting edge exchangeable cutting tool comprising a cutting insert for projecting a cutting edge,
The insert mounting seat is formed so as to stand up from the bottom surface of a pair of outer surfaces facing the thickness direction of the cutting insert having a flat plate shape, and to rise from the bottom surface. A pair of wall surfaces that are in contact with side surfaces facing in a direction orthogonal to the
The side surface of the cutting insert is formed to be inclined so as to gradually recede toward the inside of the insert as it goes toward the seating surface side along the thickness direction of the cutting insert,
The cutting insert has an attachment hole that penetrates the cutting insert in the thickness direction,
The tool body is opened in one wall surface of the pair of wall surfaces, and a recess is formed adjacent to the insert mounting seat.
The recess has a support surface facing the same direction as the bottom surface of the insert mounting seat, and an adjustment screw hole is formed in the support surface.
A cylindrical adjustment member is disposed in the recess, and the supported surface of the adjustment member is in contact with the support surface of the recess,
The adjustment member includes a through hole that passes through the adjustment member in the direction of the center line thereof, is inserted through an adjustment screw that is screwed into the adjustment screw hole, and a slit that communicates with the through hole. It can be elastically deformed in the direction intersecting the line,
The through-hole has a tapered surface that is gradually reduced in diameter as it goes toward the supported surface along the center line direction and slidably contacts the head of the adjustment screw;
The adjustment member has an insert contact surface that protrudes from the one wall surface so as to be able to protrude and retract,
The insert abutment surface is formed so as to be inclined so that the amount of protrusion from the one wall surface gradually increases toward the supported surface side along the center line direction.
By inserting a clamp screw into the mounting hole and screwing into a clamp screw hole drilled in the bottom surface of the insert mounting seat, the side surface of the cutting insert is brought into contact with the pair of wall surfaces of the insert mounting seat. The insert contact surface of the adjustment member is pressed toward the recess by the side surface of the cutting insert, and is retracted by elastically deforming the adjustment member,
By screwing in the adjustment screw, the adjustment member is restored and deformed while the head of the adjustment screw is brought into sliding contact with the tapered surface of the adjustment member, and the insert contact surface makes the side surface of the cutting insert the tool body. A cutting edge position adjusting method for a cutting edge replaceable cutting tool, wherein the cutting edge position of the cutting insert can be adjusted while extruding toward the front end side or radially outward of the cutting insert.
JP2012080487A 2012-03-30 2012-03-30 Cutting edge replaceable cutting tool and its cutting edge position adjusting method Expired - Fee Related JP5853830B2 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP2012080487A JP5853830B2 (en) 2012-03-30 2012-03-30 Cutting edge replaceable cutting tool and its cutting edge position adjusting method
CN 201320086219 CN203156128U (en) 2012-03-30 2013-02-26 Indexable insert-type cutting tool

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2012080487A JP5853830B2 (en) 2012-03-30 2012-03-30 Cutting edge replaceable cutting tool and its cutting edge position adjusting method

Publications (2)

Publication Number Publication Date
JP2013208676A true JP2013208676A (en) 2013-10-10
JP5853830B2 JP5853830B2 (en) 2016-02-09

Family

ID=49017352

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2012080487A Expired - Fee Related JP5853830B2 (en) 2012-03-30 2012-03-30 Cutting edge replaceable cutting tool and its cutting edge position adjusting method

Country Status (2)

Country Link
JP (1) JP5853830B2 (en)
CN (1) CN203156128U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113218269A (en) * 2021-03-25 2021-08-06 中国航发南方工业有限公司 Turbine blade tenon tooth positioning device and machining method thereof

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2933047B1 (en) * 2014-04-16 2017-03-01 Sandvik Intellectual Property AB A cutting tool for chip removing machining and cutting edge changing apparatus therefore
EP3167991A4 (en) * 2014-07-10 2017-07-26 Sumitomo Electric Hardmetal Corp. Cutting insert and face milling cutter
CN105328252A (en) * 2015-11-17 2016-02-17 株洲钻石切削刀具股份有限公司 Rotary processing tool
JP6677870B2 (en) * 2016-02-26 2020-04-08 三菱マテリアル株式会社 Indexable grooving tool with clamp work tool and clamp work tool
JP6955682B1 (en) * 2021-01-13 2021-10-27 株式会社タンガロイ Tool body

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0839330A (en) * 1994-07-29 1996-02-13 Mitsubishi Materials Corp Throwaway tip fixing cartridge, and cutter using it
JP2000509666A (en) * 1997-03-27 2000-08-02 ケンナメタル インコーポレイテッド Adjustable stopper
JP2001246515A (en) * 2000-02-29 2001-09-11 Mitsubishi Materials Corp Throw-away type face milling cutter
JP2004501781A (en) * 2000-06-27 2004-01-22 サンドビック　アクティエボラーグ Position adjustment mechanism
JP2007136573A (en) * 2005-11-16 2007-06-07 Mitsubishi Materials Corp Insert type end mill
JP2008114344A (en) * 2006-11-07 2008-05-22 Tungaloy Corp Edge deflection adjusting mechanism and throwaway type cutting tool provided with the same mechanism
US20090010722A1 (en) * 2007-07-05 2009-01-08 Hsin-Tien Chang Boring Bar Allowing Direct Tuning

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0839330A (en) * 1994-07-29 1996-02-13 Mitsubishi Materials Corp Throwaway tip fixing cartridge, and cutter using it
JP2000509666A (en) * 1997-03-27 2000-08-02 ケンナメタル インコーポレイテッド Adjustable stopper
JP2001246515A (en) * 2000-02-29 2001-09-11 Mitsubishi Materials Corp Throw-away type face milling cutter
JP2004501781A (en) * 2000-06-27 2004-01-22 サンドビック　アクティエボラーグ Position adjustment mechanism
JP2007136573A (en) * 2005-11-16 2007-06-07 Mitsubishi Materials Corp Insert type end mill
JP2008114344A (en) * 2006-11-07 2008-05-22 Tungaloy Corp Edge deflection adjusting mechanism and throwaway type cutting tool provided with the same mechanism
US20090010722A1 (en) * 2007-07-05 2009-01-08 Hsin-Tien Chang Boring Bar Allowing Direct Tuning

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113218269A (en) * 2021-03-25 2021-08-06 中国航发南方工业有限公司 Turbine blade tenon tooth positioning device and machining method thereof

Also Published As

Publication number Publication date
CN203156128U (en) 2013-08-28
JP5853830B2 (en) 2016-02-09

Similar Documents

Publication Publication Date Title
JP5853830B2 (en) Cutting edge replaceable cutting tool and its cutting edge position adjusting method
RU2529137C2 (en) Cutting tool with replaceable cutting edges and cutting inserts for said tool
US9211597B2 (en) Cutting tool and cutting insert for the same
US20150165527A1 (en) Cutting tool with replaceable abutment members and toolholder and cutting insert therefor
CN107000076B (en) Tool and cutting insert for chip removing machining
CN105992665A (en) Cutting tool having adjustable insert cutting angle
WO2014175114A1 (en) Cutting blade position adjustment mechanism and cutting edge-replaceable cutting tool
JP2007210090A (en) Round insert detachable type cutting tool and round insert
JP2016529128A (en) Peripheral cutting tool using stick blade
US10307833B2 (en) Cutting tool comprising a cutting tool holder and a cutting insert therefor
JP2017177325A (en) Tool for cutting work-piece
US10286459B2 (en) Machining tool
JP5790566B2 (en) Fastening mechanism for cutting head and head exchangeable cutting tool using the same
JP5971577B2 (en) Blade adjustment mechanism
JP2006102924A (en) Milling cutter
JP2013111699A (en) Fine adjustment type cutting tool
US10549353B2 (en) Cutting tool
JP2007260807A (en) Milling cutter
JP2019534166A (en) Face milling tools and tangential cutting inserts for face milling tools
JP2019098434A (en) Edge-replacing type cutter
JP2007136573A (en) Insert type end mill
JP2005342850A (en) Throwaway type face milling cutter and mounting member of supporter for use in face milling cutter
JP2008254154A (en) Insert for machining taper and tool for machining insert-detachable type taper
JP6331683B2 (en) Blade adjustment mechanism
JP2006192530A (en) Throw-away type cutting tool and throw-away tip

Legal Events

Date Code Title Description
A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20140925

A977 Report on retrieval

Free format text: JAPANESE INTERMEDIATE CODE: A971007

Effective date: 20150625

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20150714

A521 Written amendment

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20150914

TRDD Decision of grant or rejection written
A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

Effective date: 20151110

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20151123

R150 Certificate of patent or registration of utility model

Ref document number: 5853830

Country of ref document: JP

Free format text: JAPANESE INTERMEDIATE CODE: R150

LAPS Cancellation because of no payment of annual fees