JPH106117A - Boring tool and spot facing work member arranged in boring tool - Google Patents
Boring tool and spot facing work member arranged in boring toolInfo
- Publication number
- JPH106117A JPH106117A JP16749996A JP16749996A JPH106117A JP H106117 A JPH106117 A JP H106117A JP 16749996 A JP16749996 A JP 16749996A JP 16749996 A JP16749996 A JP 16749996A JP H106117 A JPH106117 A JP H106117A
- Authority
- JP
- Japan
- Prior art keywords
- blade
- cylindrical
- counterbore
- mounting portion
- base end
- 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.)
- Withdrawn
Links
Landscapes
- Drilling And Boring (AREA)
- Drilling Tools (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、金属板や壁板等に
穿孔するための孔開け工具及びこれに設けられる座ぐり
加工部材に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a drilling tool for drilling a metal plate, a wall plate, and the like, and a counterbored member provided therein.
【０００２】[0002]
【従来の技術】従来、換気等を目的として、壁板等に孔
を開け、これにパイプ及びフード等の設備品を挿入する
といった構造がよく構築される。図１３（ａ）は、その
構造の一例を示したものである。図において、壁板９０
に貫通孔９１が穿孔され、この貫通孔９１内にパイプ９
２が挿入されるとともに、このパイプ９２の先端にフー
ド部材９４が取付けられている。このフード部材９４
は、フランジ部９５とフード９６とを一体に有し、この
フード９６の下部にのみ連通口９７が設けられている。
そして、このフード部材９４のフランジ部９５が壁板９
０の屋外側面（図では右側面）９０ａ上に固定された状
態で、上記フード９６により上記パイプ９２の先端開口
が上方から覆われ、その開口から屋内への雨風の侵入が
防がれるようになっている。2. Description of the Related Art Conventionally, a structure is often constructed in which a hole is formed in a wall plate or the like and equipment such as a pipe and a hood is inserted into the hole for ventilation or the like. FIG. 13A shows an example of the structure. In the figure, the wall plate 90
A through hole 91 is drilled in the through hole 91, and a pipe 9 is inserted into the through hole 91.
2 is inserted, and a hood member 94 is attached to the tip of the pipe 92. This hood member 94
Has a flange portion 95 and a hood 96 integrally, and a communication port 97 is provided only at a lower portion of the hood 96.
The flange 95 of the hood member 94 is
In a state where the pipe 92 is fixed on the outdoor side surface (right side surface in the figure) 90a, the top opening of the pipe 92 is covered from above by the hood 96 so that rain and wind can be prevented from entering the room from the opening. Has become.
【０００３】ところで、この構造において雨水等の侵入
防止を確実にするには、上記フランジ部９５にコーキン
グを施す等して、フランジ部９５と壁板屋外側面９０ａ
との間の密閉性を高める必要があるが、図示のように上
記壁板屋外側面９０ａに凹凸があると、フランジ部９５
と壁板屋外側面９０ａとのすき間を完全に埋めることは
困難であり、上記密閉性を向上させることはきわめて難
しい。しかし、同図（ｂ）に示すように、上記屋外側面
９０ａにおいて貫通孔９１の周縁に座ぐり加工を施して
底面が平坦な凹部９８を形成すれば、この凹部９８に上
記フランジ部９５を固定することによって良好な密閉性
が得られる。In this structure, in order to reliably prevent rainwater or the like from entering, the flange portion 95 and the wall plate outdoor side surface 90a are subjected to caulking or the like.
It is necessary to improve the sealing between the wall portion and the outer side surface 90a of the wall plate as shown in FIG.
It is difficult to completely fill the gap between the wall plate 90 and the outdoor side surface 90a, and it is extremely difficult to improve the sealing performance. However, as shown in FIG. 7B, if the periphery of the through-hole 91 is counterbored on the outdoor side surface 90a to form a recess 98 having a flat bottom surface, the flange portion 95 is fixed to the recess 98. By doing so, good sealing properties can be obtained.
【０００４】そこで近年は、上記貫通孔９１の穿設と、
その周囲の座ぐり加工とを同時に行う孔開け工具の開発
が進められている。図１４にその一例を示す。この孔開
け工具１００は、円筒状刃物１０２の基端（図では右
端）にフランジ部１０４が一体に接合されたものであ
り、円筒状刃物１０２の先端には多数の穿孔用刃物１０
８が周方向に並設されている。フランジ部１０４の中心
位置には、図略の回転駆動源に直結される工具連結部１
０６が配され、この工具連結部１０６にセンタードリル
１１０が装着されており、このセンタードリル１１０は
上記円筒状刃物１０２の中心部を通って円筒状刃物１０
２よりも先方に突出している。さらに、上記フランジ部
１０４の前側面には複数の座ぐり用刃部１１２が一体に
固着されている。Therefore, in recent years, the above-described through-holes 91 have been drilled,
Development of a drilling tool that simultaneously performs counterbore machining around the periphery has been advanced. FIG. 14 shows an example. In this drilling tool 100, a flange 104 is integrally joined to a base end (right end in the figure) of a cylindrical cutting tool 102, and a large number of drilling tools 10 are attached to the tip of the cylindrical cutting tool 102.
8 are juxtaposed in the circumferential direction. At the center position of the flange portion 104, a tool connecting portion 1 directly connected to a rotation drive source (not shown)
06, and a center drill 110 is mounted on the tool connecting portion 106. The center drill 110 passes through the center of the cylindrical blade 102 and is provided with the cylindrical blade 10
It protrudes further than 2. Further, a plurality of counterbore blade portions 112 are integrally fixed to the front side surface of the flange portion 104.
【０００５】このような孔開け工具において、上記工具
連結部１０６を図略の回転駆動源に連結し、孔開け工具
全体を回転駆動することにより、まずセンタードリル１
１０により孔中心の位置決めを行い、次に円筒状刃物１
０２で穿孔し、最後に座ぐり用刃部で貫通孔の周囲に座
ぐり加工を施すことができる。In such a drilling tool, the center drill 1 is first connected by connecting the tool connecting portion 106 to a rotation drive source (not shown) and rotating the entire drilling tool.
The center of the hole is positioned by 10 and then the cylindrical tool 1
Drilling is performed at 02 and finally a spot facing is formed around the through hole with a spot facing blade.
【０００６】[0006]
【発明が解決しようとする課題】上記孔開け工具では、
次のような解決すべき課題がある。In the above-mentioned drilling tool,
There are the following issues to be solved.
【０００７】Ａ）壁板の材質や目標穿孔径に対応して複
数種の円筒状刃物１０２を使い分ける必要があるが、上
記孔開け工具では、円筒状刃物１０２と座ぐり用刃部１
１２の付いたフランジ部１０４とが一体に接合されてい
るため、円筒状刃物１０２の必要数と同数だけ工具が必
要であり、非常にコスト高となる。また、円筒状刃物１
０２の刃部１０８が破損しただけでも工具全体を交換し
なければならず、不経済である。A) It is necessary to use a plurality of types of cylindrical cutting tools 102 in accordance with the material of the wall plate and the target drilling diameter. In the above-described drilling tool, the cylindrical cutting tool 102 and the counterbore blade 1 are used.
Since the flange portion 104 with 12 is integrally joined, the same number of tools as the required number of the cylindrical cutting tools 102 are required, resulting in a very high cost. Also, a cylindrical cutter 1
Even if the blade portion of No. 02 is broken, the entire tool must be replaced, which is uneconomical.
【０００８】Ｂ）施工目的等によっては、上記穿孔と座
ぐり加工とを同時に行いたい場合と、穿孔のみを行いた
い場合とがある。ここで、前記図１４の孔開け工具を用
いて穿孔のみを行いたい場合には、円筒状刃物１０２が
壁板を貫いた瞬間にそれまでの押圧を止め、座ぐり用刃
部１１２が壁面に接触しないようにすればよい。しか
し、穿孔完了時にはそれまでの掘削抵抗が急激に下が
り、それまでの勢いで工具全体が瞬発的に大きく前進し
てしまうので、上記のように座ぐり加工用刃物１１２が
壁面に接触する前に工具の前進を止めるといった作業は
きわめて困難である。すなわち、上記孔開け工具は、穿
孔と同時に座ぐり加工を行う場合にのみ適し、穿孔のみ
を行う場合には不適であり、汎用性が低い。[0008] B) Depending on the purpose of construction and the like, there are cases where it is desired to perform the above-described drilling and spot facing at the same time, and cases where only the drilling is desired. Here, when it is desired to perform only the drilling using the drilling tool shown in FIG. 14, the pressing up to that point is stopped at the moment when the cylindrical blade 102 penetrates the wall plate, and the counterbore blade 112 is attached to the wall surface. What is necessary is just to avoid contact. However, when the drilling is completed, the excavation resistance up to that point sharply drops, and the entire tool instantaneously largely advances with the momentum up to that point, so that the counterbore cutting tool 112 contacts the wall surface as described above. Operations such as stopping the advance of the tool are extremely difficult. That is, the above-mentioned drilling tool is suitable only when performing spot facing at the same time as drilling, and is not suitable when performing only drilling, and has low versatility.
【０００９】[0009]
【課題を解決するための手段】上記課題を解決するため
の手段として、本発明は、刃物装着部と、この刃物装着
部に基端部が着脱可能に装着され、先端に穿孔用刃部を
もつ円筒状刃物とを備え、上記刃物装着部と円筒状刃物
とが一体に回転駆動された状態で加工物を穿孔する孔開
け工具において、上記刃物装着部に着脱可能に装着さ
れ、この装着状態で上記円筒状刃物の基端部の外周面か
ら径方向外側に突出する座ぐり用刃部をもつ座ぐり加工
部材を備えたものである。As a means for solving the above problems, the present invention provides a blade mounting portion, a base end portion detachably mounted on the blade mounting portion, and a drilling blade portion at a distal end. A drilling tool for drilling a workpiece in a state in which the cutting tool mounting portion and the cylindrical cutting tool are integrally rotated and driven, the cutting tool being detachably mounted to the cutting tool mounting portion, And a counterbore processing member having a counterbore blade protruding radially outward from the outer peripheral surface of the base end of the cylindrical blade.
【００１０】この工具によれば、上記刃物装着部に円筒
状刃物と座ぐり加工部材の双方を装着した状態で、工具
全体を加工することにより、上記円筒状刃物で穿孔がで
きるとともに、その孔の周囲に上記座ぐり加工部材で座
ぐり加工を施すことができる。また、円筒状刃物の破損
等によって円筒状刃物の交換が必要になった場合、工具
全体を交換する必要はなく、座ぐり加工部材及び刃物装
着部には共通のものが使用できる。[0010] According to this tool, the entire tool is machined in a state where both the cylindrical cutter and the counterbore processing member are mounted on the cutter mounting portion, so that the cylindrical cutter can make a hole, and the hole can be formed. Can be subjected to spot facing with the spot facing member. Further, when it is necessary to replace the cylindrical blade due to breakage of the cylindrical blade or the like, it is not necessary to replace the entire tool, and a common counterbore member and a blade mounting portion can be used.
【００１１】また、共通の刃物装着部に互いに穿孔径の
異なる複数種の円筒状刃物が装着可能となるように構成
したものにおいては、穿孔径の変更があった場合に工具
全体を交換する必要はなく、少なくとも刃物装着部には
共通のものが使用できる。Further, in a configuration in which a plurality of types of cylindrical blades having different drilling diameters can be mounted on a common blade mounting portion, it is necessary to replace the entire tool when the drilling diameter is changed. However, a common tool can be used at least for the blade mounting portion.
【００１２】上記座ぐり加工部材が上記刃物装着部と円
筒状刃物の基端との間に挟まれることにより固定される
ようにすれば、この座ぐり加工部材を刃物装着部に固定
するための取付具は不要になり、刃物装着部と円筒状刃
物との連結作業だけで自動的に座ぐり加工部材の固定も
できる。If the counterbore processing member is fixed by being sandwiched between the blade mounting portion and the base end of the cylindrical blade, the counterbore processing member can be fixed to the blade mounting portion. A mounting tool is not required, and the spot facing member can be automatically fixed only by connecting the blade mounting portion and the cylindrical blade.
【００１３】より具体的に、上記座ぐり加工部材の本体
を、上記円筒状刃物の基端部に嵌着されるリング状本体
とし、このリング状本体から径方向外側に突出する位置
に複数の座ぐり用刃部を設けたものによれば、単一のリ
ング状本体を円筒状刃物の基端部に嵌着するだけで、複
数の座ぐり用刃部のセットが同時にできる。この場合、
上記リング状本体の基端部に、上記円筒状刃物の基端部
と刃物装着部とに挟まれる被挾持部を形成すればよい。More specifically, the main body of the counterbore member is a ring-shaped main body fitted to the base end of the cylindrical cutting tool, and a plurality of the main bodies are provided at positions projecting radially outward from the ring-shaped main body. According to the one provided with the counterbore blade portion, a plurality of counterbore blade portions can be set at the same time simply by fitting a single ring-shaped main body to the base end portion of the cylindrical blade. in this case,
At the base end of the ring-shaped main body, a holding portion sandwiched between the base end of the cylindrical blade and the blade mounting portion may be formed.
【００１４】さらに、上記座ぐり加工部材において上記
座ぐり用刃部の後方にその穿孔径よりも大きな外径をも
つ座ぐり規制部を設ければ、座ぐり深さは上記座ぐり規
制部が加工面に当接するまでの深さに限定されるため、
この座ぐり深さを一定化できる。Further, if the counterbore processing member is provided with a counterbore regulating portion having an outer diameter larger than the hole diameter thereof at the back of the counterbore blade portion, the counterbore depth can be controlled by the counterbore depth. Because it is limited to the depth until it contacts the machined surface,
This counterbore depth can be made constant.
【００１５】また、周方向に並べて設けられる複数の座
ぐり加工部材を備え、各座ぐり加工部材に、上記刃物装
着部と円筒状刃物の基端との間に挟まれて固定される被
挾持部と、この被挾持部が固定された状態で上記円筒状
刃物の基端部の径方向外側に位置する単一の座ぐり用刃
部とを設けたものにおいても、刃物装着部と円筒状刃物
との連結作業だけで座ぐり加工部材の取付ができる。Further, a plurality of counterbore processing members provided in a circumferential direction are provided, and each of the counterbore processing members is sandwiched and fixed between the blade mounting portion and the base end of the cylindrical blade. And a single counterbore blade located radially outside the base end of the cylindrical blade with the clamped portion fixed, the blade mounting portion and the cylindrical The counterbore processing member can be attached only by the connection work with the blade.
【００１６】ここで、上記円筒状刃物にねじ孔を設け、
上記刃物装着部において上記ねじ孔に対応する位置にボ
ルト挿通孔を設け、このボルト挿通孔にボルトが挿通さ
れた状態で同ボルトが上記ねじ孔に螺合されることによ
り刃物装着部と円筒状刃物とが締結されるように構成す
るとともに、上記被挾持部に上記ボルトが挿通されるボ
ルト挿通孔を設ければ、ボルト挿通個所に上記被挾持部
を配することができ、この被挾持部が挾持される力（す
なわち座ぐり加工部材が固定される力）を高めることが
できる。Here, a screw hole is provided in the cylindrical blade,
A bolt insertion hole is provided at a position corresponding to the screw hole in the blade mounting portion, and the bolt is screwed into the screw hole in a state where the bolt is inserted in the bolt insertion hole, so that the blade mounting portion and the cylindrical shape are formed. If the blade is configured to be fastened and a bolt insertion hole through which the bolt is inserted is provided in the holding portion, the holding portion can be arranged at the bolt insertion point. Can be increased (i.e., the force with which the spot facing member is fixed).
【００１７】さらに、上記被挾持部のボルト挿通孔を工
具径方向に延びる長孔とすれば、座ぐり加工部材の装着
位置を径方向に調節することができるので、穿孔径を変
更する場合（すなわち円筒状刃物の径を変更する場合）
にも、共通の座ぐり加工部材が利用できる。Further, if the bolt insertion hole of the holding portion is an elongated hole extending in the tool radial direction, the mounting position of the counterbore processing member can be adjusted in the radial direction. That is, when changing the diameter of the cylindrical blade)
Also, a common spot facing member can be used.
【００１８】また本発明は、刃物装着部と、この刃物装
着部に基端部が着脱可能に装着され、先端に穿孔用刃部
をもつ円筒状刃物とを備え、上記刃物装着部と円筒状刃
物とが一体に回転駆動された状態で加工物を穿孔する孔
開け工具に設けられる座ぐり加工部材であって、上記刃
物装着部と円筒状刃物の基端との間に挟まれることによ
り固定される被挾持部と、この被挾持部が固定された状
態で上記円筒状刃物の基端部の径方向外側の位置に座ぐ
り用刃部を保持する刃保持部とを備えたものである。The present invention also provides a blade mounting portion, and a cylindrical blade having a base end portion detachably mounted on the blade mounting portion and having a drilling blade portion at a distal end. A counterbore processing member provided on a drilling tool for drilling a workpiece in a state where the blade is integrally rotated and driven, and fixed by being sandwiched between the blade mounting portion and a base end of a cylindrical blade. And a blade holding portion for holding the counterbore blade at a position radially outward of the base end of the cylindrical blade in a state where the held portion is fixed. .
【００１９】[0019]
【発明の実施の形態】本発明の第１の実施の形態を図１
〜図９に基づいて説明する。この実施の形態にかかる孔
開け工具は、刃物装着部１０と、円筒状刃物１２と、座
ぐり加工用部材１４と、シャンク１６とを備えている。FIG. 1 shows a first embodiment of the present invention.
This will be described with reference to FIG. The drilling tool according to this embodiment includes a blade mounting portion 10, a cylindrical blade 12, a counterbore member 14, and a shank 16.
【００２０】刃物装着部１０の中央部位には、これを軸
方向に貫通するねじ孔１３が設けられている。一方、駆
動連結部１６の先端には雄ねじ１５が形成され、この雄
ねじ１５が上記ねじ孔１３内にねじ込まれることによ
り、シャンク１６と刃物装着部１０とが連結されるよう
になっている。シャンク１６の中央部には先方から中心
位置決め用のセンタードリル１１（図６）が差し込ま
れ、シャンク１６に側方から挿入される抜け止め部材
（図示せず）によってこのシャンク１６に回転不能に固
定されている。A screw hole 13 is provided at a central portion of the blade mounting portion 10 to penetrate the blade mounting portion 10 in the axial direction. On the other hand, a male screw 15 is formed at the tip of the drive connecting portion 16, and the male screw 15 is screwed into the screw hole 13 so that the shank 16 and the blade mounting portion 10 are connected. A center drill 11 (FIG. 6) for centering is inserted into the center of the shank 16 from the front, and is fixed to the shank 16 in a non-rotatable manner by a retaining member (not shown) inserted into the shank 16 from the side. Have been.
【００２１】上記刃物装着部１０の前側面（図３では手
前側面）には、複数のリブ２０Ａ，２０Ｂ，２０Ｃが略
同心円状に突設されており、各リブ同士の間に周溝２１
が形成されている。また、これらのリブ２０Ａ〜２０Ｃ
において、互いに周方向に１８０°離間する位置には、
半径方向に延びる嵌入溝２２が形成され、両嵌入溝２２
の配設位置に、刃物装着部１０を工具軸方向に貫通する
ボルト挿通孔１７が設けられている。A plurality of ribs 20A, 20B, and 20C are provided on the front side surface (the front side surface in FIG. 3) of the blade mounting portion 10 in a substantially concentric manner, and a circumferential groove 21 is provided between the ribs.
Are formed. In addition, these ribs 20A to 20C
, At positions 180 ° apart from each other in the circumferential direction,
A fitting groove 22 extending in the radial direction is formed.
Is provided with a bolt insertion hole 17 that penetrates the blade mounting portion 10 in the tool axis direction.
【００２２】なお、図１及び図３において１９は、後述
の加工の際に工具内側に詰まった切粉を押し出すための
貫通孔である。In FIGS. 1 and 3, reference numeral 19 denotes a through hole for extruding chips clogged inside the tool at the time of processing described later.
【００２３】円筒状刃物１２は、薄肉円筒状のボディ２
４を有し、この実施形態では、上記３つのリブ２０Ａ〜
２０Ｃのぞれぞれに外嵌可能な径を持つ３種の円筒状刃
物１２が具備されている。上記ボディ２４の先端には、
焼結合金や工具鋼等からなる複数の穿孔用刃部２４ａが
周方向に配設されており、各穿孔用刃部２４ａは上記ボ
ディ２４の内外周面及び先端面からそれぞれ突出する形
状を有している。そして、この円筒状刃物１２全体が回
転駆動された状態で板材等の加工対象物に押付けられる
ことにより、穿孔が行われるようになっている。The cylindrical blade 12 is a thin cylindrical body 2.
4 and, in this embodiment, the three ribs 20 </ b> A to 20 </ b> A.
Three types of cylindrical blades 12 each having a diameter that can be externally fitted to each of the 20C are provided. At the tip of the body 24,
A plurality of piercing blades 24a made of a sintered alloy, tool steel, or the like are provided in the circumferential direction, and each piercing blade 24a has a shape protruding from the inner and outer peripheral surfaces and the distal end surface of the body 24, respectively. doing. Then, the entire cylindrical cutting tool 12 is pressed against a processing object such as a plate material in a state of being rotationally driven, so that drilling is performed.
【００２４】なお、穿孔用刃部は上記のようにボディ２
４と別部材で構成されたものに限らず、例えばボディ２
４全体を工具鋼からなるパイプ材で構成し、その先端に
上記穿孔用刃部を一体に形成するようにしてもよい。The drilling blade is connected to the body 2 as described above.
For example, the body 2 is not limited to a member composed of
The whole 4 may be made of a pipe material made of tool steel, and the above-described drilling blade may be integrally formed at the tip thereof.
【００２５】上記ボディ２４の基端部（図１では上端
部）には、一対のナット部材３０が取付けられている。
図４に示すように、各ナット部材３０は、略立方体状の
本体部を有し、この本体部にねじ孔が貫設されるととも
に、この本体部から側方に軸部３１が延長され、この軸
部３１の先端部は異形断面（この実施の形態では曲率半
径の大きい２つの円弧を上下に組み合わせた形状の断
面）をもつ異形断面部３２とされている。A pair of nut members 30 are attached to the base end (the upper end in FIG. 1) of the body 24.
As shown in FIG. 4, each nut member 30 has a substantially cubic main body, a screw hole is provided in the main body, and a shaft 31 is extended laterally from the main body. The distal end of the shaft portion 31 is a modified cross section 32 having a modified cross section (in this embodiment, a cross section having a shape in which two arcs having a large radius of curvature are vertically combined).
【００２６】一方、上記ボディ２４の基端部において互
いに１８０°離間する２つの位置には、このボディ２４
を半径方向に貫通する貫通孔１２ｂが設けられている。
この貫通孔１２ｂは横に長い小判状をなし、その長径が
上記異形断面部３２の長径よりも僅かに大きい寸法に設
定されている。そして、この貫通孔１２ｂに上記異形断
面部３２が径方向内側から遊嵌され、軸部３１の先端に
抜け止めピン３４が直径方向に貫設されることにより、
異形断面部３２の抜け止めがなされるとともに、このナ
ット部材３０のねじ孔が工具中心軸と平行な状態で上記
刃物装着部１０の嵌入溝２２内にナット部材３０が嵌入
可能となるように、これら嵌入溝２２の幅寸法が設定さ
れている。On the other hand, at the base end of the body 24, two positions 180.degree.
Is provided in the radial direction.
The through-hole 12b is formed in a laterally long oval shape, and its major axis is set to be slightly larger than the major axis of the irregular cross-section 32. The deformed cross section 32 is loosely fitted into the through hole 12b from the radial inside, and the retaining pin 34 is pierced at the tip of the shaft portion 31 in the radial direction.
The deformed cross section 32 is prevented from falling off, and the nut member 30 can be fitted into the fitting groove 22 of the blade mounting portion 10 with the screw hole of the nut member 30 being parallel to the tool center axis. The width dimensions of these fitting grooves 22 are set.
【００２７】なお、本発明において、円筒状刃物１２に
ねじ孔を設ける場合、上記のように特別なナット部材３
０を円筒状刃物に取付けるものに限らず、例えば円筒状
刃物を有底にしてその底部に上記ねじ孔を設けるように
してもよい。In the present invention, when the cylindrical blade 12 is provided with a screw hole, the special nut member 3 is provided as described above.
It is not limited to the case where 0 is attached to the cylindrical blade, and for example, the screw hole may be provided at the bottom of the cylindrical blade having a bottom.
【００２８】座ぐり加工用部材１４は、上記各円筒状刃
物１２に対応して３種のものが具備され、各座ぐり加工
用部材１４は、円筒状刃物１２のボディ２４の基端部に
外嵌可能な径をもつリング状本体４０を備えている。こ
のリング状本体４０の基端部（図１では上端部）には、
径方向内側に突出するフランジ部（被挾持部）４２が形
成され、図７（ａ）に示すように、リング状本体４０が
ボディ２４の基端部に外嵌された状態で、このボディ２
４の基端面（図７（ａ）では上面）と溝２１の底面（同
図では上面）との間に上記フランジ部４２を挟み込むこ
とが可能となっている。また、リング状本体４０の２か
所には、このリング状本体４０と上記異形断面部３２と
の干渉を避けるための切欠４４が形成されている。There are three types of counterbore members 14 corresponding to the respective cylindrical blades 12. Each counterbore member 14 is provided at the base end of the body 24 of the cylindrical blade 12. A ring-shaped main body 40 having a diameter that can be fitted is provided. At the base end (the upper end in FIG. 1) of the ring-shaped main body 40,
A flange portion (clamped portion) 42 protruding radially inward is formed, and as shown in FIG. 7A, the ring-shaped main body 40 is externally fitted to the base end of the body 24.
The flange portion 42 can be sandwiched between the base end surface (upper surface in FIG. 7A) of FIG. 4 and the bottom surface (upper surface in FIG. 7) of the groove 21. Notches 44 are formed in two places of the ring-shaped main body 40 to avoid interference between the ring-shaped main body 40 and the deformed cross-section 32.
【００２９】上記リング状本体４０の軸方向寸法（図６
では上下方向の寸法）は、上記リブ２０Ａ〜２０Ｃの突
出寸法よりも大きく設定されている。そして、このリン
グ状本体４０において上記リブ２０Ａ〜２０Ｃから先方
にはみ出す個所の外周面に、一対の刃保持部４６が径方
向外側に突設されている。各刃保持部４６から先端側
（図６では下側）には刃支持板４８が突設され、この刃
保持板４８の側面に、前記穿孔用刃部２４ａと同等の材
質をもつ座ぐり用刃部５０が固着されている。この座ぐ
り用刃部５０は、上記リング状本体４０がボディ２４の
基端部に外嵌された状態で、このボディ２４の基端部外
周面にほぼ接する形状を有している。また、各刃保持部
４６の径方向外側端部とリング状本体４０との間には補
強板５２が配されている。The axial dimension of the ring-shaped main body 40 (FIG. 6)
In the vertical direction) is set to be larger than the protrusion size of the ribs 20A to 20C. In the ring-shaped main body 40, a pair of blade holding portions 46 are provided to protrude radially outward on the outer peripheral surface of the portion protruding forward from the ribs 20A to 20C. A blade support plate 48 protrudes from the blade holding portion 46 on the tip side (the lower side in FIG. 6), and has a side surface of the blade holding plate 48 for counterbore having the same material as that of the drilling blade portion 24a. The blade part 50 is fixed. The counterbore blade portion 50 has a shape substantially in contact with the outer peripheral surface of the base end portion of the body 24 when the ring-shaped main body 40 is externally fitted to the base end portion of the body 24. Further, a reinforcing plate 52 is arranged between a radially outer end of each blade holding portion 46 and the ring-shaped main body 40.
【００３０】次に、この孔開け工具の使用要領を説明す
る。Next, how to use the drilling tool will be described.
【００３１】 目標の穿孔径に適合した円筒状刃物１
２を選出し、その基端部に座ぐり加工部材１４のリング
状本体４０を嵌着する。[0031] Cylindrical blade 1 adapted to the target drilling diameter
2 is selected, and the ring-shaped main body 40 of the spot facing member 14 is fitted to the base end thereof.
【００３２】 刃物装着部１０のボルト挿通孔１７
と、円筒状刃物１２のナット部材３０とが対向するよう
に刃物装着部１０と円筒状刃物１２との回転位相を合
せ、上記ナット部材３０を上記刃物装着部１０の嵌入溝
２２に嵌入するようにしながら、円筒状刃物１２のボデ
ィ２４の基端部を適当なリブに嵌める。図７（ａ）
（ｂ）の例ではリブ２０Ｂの外側に嵌める。換言すれ
ば、周溝２１内にボディ２４の基端部とリング状本体４
０との双方を嵌入する。このとき、上記ナット部材３０
と嵌入溝２２との嵌合により、上記ナット部材３０のね
じ孔とボルト挿通孔１７とがほぼ合致する相対角度位置
に刃物装着部１０と円筒状刃物１２とが位置決めされ、
ナット部材３０のねじ孔は自動的にボルト挿通孔１７側
に向く（すなわち上を向く）。また、座ぐり加工用部材
１４のフランジ部４２は、上記ボディ２４の基端部と溝
２１の底面との間に挟み込まれた状態となる。The bolt insertion hole 17 of the blade mounting portion 10
The rotation phase of the blade mounting portion 10 and the cylindrical blade 12 is adjusted so that the nut member 30 of the cylindrical blade 12 faces the nut member 30, and the nut member 30 is fitted into the fitting groove 22 of the blade mounting portion 10. Then, the base end of the body 24 of the cylindrical blade 12 is fitted to an appropriate rib. FIG. 7 (a)
In the example of (b), it fits outside the rib 20B. In other words, the base end of the body 24 and the ring-shaped
0 is inserted. At this time, the nut member 30
The blade mounting portion 10 and the cylindrical blade 12 are positioned at a relative angle position where the screw hole of the nut member 30 and the bolt insertion hole 17 substantially coincide with each other,
The screw hole of the nut member 30 automatically faces the bolt insertion hole 17 (ie, faces upward). Further, the flange portion 42 of the counterbore processing member 14 is sandwiched between the base end of the body 24 and the bottom surface of the groove 21.
【００３３】 の状態のまま、シャンク１６側から
ボルト挿通孔１７にボルト３６を挿通し、上記ナット部
材３０に螺合する。この螺合によって、刃物装着部１０
と円筒状刃物１２とを締結でき、かつ、両者の間に挟ま
れた座ぐり加工用部材１４のフランジ部４２も固定でき
る。In this state, the bolt 36 is inserted into the bolt insertion hole 17 from the shank 16 side and screwed into the nut member 30. By this screw engagement, the blade mounting portion 10
And the cylindrical blade 12 can be fastened, and the flange portion 42 of the counterbore processing member 14 sandwiched therebetween can also be fixed.
【００３４】 シャンク１６を図略の回転駆動源に連
結して工具全体を回転駆動し、壁板等の加工対象物に押
付ける。これにより、まずセンタードリル１１が上記加
工対象物を削って穴加工位置を決め、次いで上記円筒状
刃物１２が上記ドリル１１の周囲を削ることにより、そ
のボディ２４の直径に対応した貫通孔を穿つ。そして最
後に、座ぐり加工部材１４の座ぐり用刃部５０が加工対
象面に接触し、上記貫通孔の周囲を座ぐって好適な凹部
を形成する。The shank 16 is connected to a rotary drive source (not shown) to drive the entire tool to rotate and press the tool against a workpiece such as a wall plate. As a result, first, the center drill 11 cuts the object to be processed to determine a hole processing position, and then the cylindrical cutting tool 12 cuts the periphery of the drill 11 to form a through hole corresponding to the diameter of the body 24. . Finally, the counterbore blade 50 of the counterbore processing member 14 comes into contact with the surface to be processed, and counterbore around the through hole to form a suitable concave portion.
【００３５】 加工終了後、円筒状刃物１２を交換す
るには、ボルト３６を緩めてナット部材３０のねじ孔か
ら抜き取り、円筒状刃物１２及び座ぐり加工部材１４を
刃物装着部１０から取り外した後、別の円筒状刃物１２
及び座ぐり加工部材１４を上記と同じ要領で刃物装着部
１０に装着すればよい。After the machining, to replace the cylindrical blade 12, the bolt 36 is loosened and removed from the screw hole of the nut member 30, and the cylindrical blade 12 and the counterbore processing member 14 are removed from the blade mounting portion 10. , Another cylindrical blade 12
The counterbore processing member 14 may be mounted on the blade mounting portion 10 in the same manner as described above.
【００３６】この孔開け工具によれば、次のような効果
が得られる。According to this drilling tool, the following effects can be obtained.
【００３７】(a) 穿孔径を変更したり、円筒状刃物１２
や座ぐり加工用部材１４に破損が生じたりした場合に
は、工具全体を交換しなくても、円筒状刃物１２及び座
ぐり加工用部材１４のみを交換すればよく、刃物装着部
１０等は共通のものが使用できるので、経済的である。(A) Changing the diameter of the hole,
When the counterbore processing member 14 is damaged or the like, the cylindrical tool 12 and the counterbore processing member 14 need only be replaced without replacing the entire tool. It is economical because common things can be used.
【００３８】(b) 座ぐり加工を要しない場合には、座ぐ
り加工部材１４を装着せずに円筒状刃物１２のみを刃物
装着部１０に装着すればよく、これにより、穿孔作業の
みを良好に行うことができる。すなわち、穿孔作業のみ
を行う場合にも、穿孔作業及び座ぐり加工を同時に行う
場合にも、共通して使用でき、汎用性が高い。(B) When the counterbore processing is not required, only the cylindrical blade 12 may be mounted on the blade mounting portion 10 without mounting the counterbore processing member 14, thereby improving only the drilling operation. Can be done. That is, the present invention can be used in common when performing only the drilling operation or simultaneously performing the drilling operation and the spot facing operation, and has high versatility.
【００３９】(c) 互いに締結される円筒状刃物１２と刃
物装着部１０との間にフランジ部４２を挟み込むことに
より、座ぐり加工部材１４の固定を行っているので、こ
の座ぐり加工部材１４専用の取付具が不要である。ま
た、座ぐり加工部材１４を用いない場合と比べて取付作
業がほとんどかわらず、作業性も良好である。(C) The counterbore processing member 14 is fixed by sandwiching the flange 42 between the cylindrical blade 12 and the blade mounting portion 10 which are fastened to each other. No special fixture is required. In addition, compared to a case where the counterbore processing member 14 is not used, there is almost no mounting work, and workability is good.
【００４０】ただし、本発明では、上記座ぐり加工部材
１４を特別の取付具で刃物装着部１０もしは円筒状刃物
１２に着脱可能に固定するようにしても、良好な座ぐり
加工を行うことは可能である。例えば、前記リング状本
体４０をボディ２４の基端部に外嵌した状態で両者をボ
ルト等で締結するようにしてもよい。However, in the present invention, even if the counterbore processing member 14 is detachably fixed to the blade mounting portion 10 or the cylindrical blade 12 with a special fixture, good counterbore processing can be performed. Is possible. For example, the two may be fastened with bolts or the like in a state where the ring-shaped body 40 is externally fitted to the base end of the body 24.
【００４１】また、第２の実施の形態として図９に示す
ように、座ぐり加工部材１４において座ぐり用刃部５０
の後方（図９では上方）の位置に、穿孔径よりも大きな
外径をもつドーナツ状のフランジ板（座ぐり規制部）５
４を固定しておけば、このフランジ板５４から座ぐり用
刃部５０の前側面（図では下側面）までの寸法ｈと同等
の寸法に座ぐり加工領域が限定されるので、この座ぐり
深さを一定化できる効果が得られる。Further, as a second embodiment, as shown in FIG.
A doughnut-shaped flange plate (counterbore regulating portion) 5 having an outer diameter larger than the diameter of the perforation
4 is fixed, the spot facing region is limited to a dimension equivalent to the dimension h from the flange plate 54 to the front side (the lower side in the figure) of the spot facing blade portion 50. The effect of making the depth constant can be obtained.
【００４２】第３の実施の形態を図１０〜図１２に基づ
いて説明する。この実施の形態では、一つの座ぐり用刃
部５０について一つの座ぐり加工部材６０が用意されて
いる。すなわち、座ぐり用刃部５０と同数（図例では２
つ）の座ぐり加工部材６０が具備され、これらが同時に
孔開け工具に装着されるようになっている。A third embodiment will be described with reference to FIGS. In this embodiment, one counterbore processing member 60 is prepared for one counterbore blade portion 50. That is, the same number as the counterbore blades 50 (2 in the example shown).
Counterbore processing members 60, which are simultaneously mounted on the drilling tool.
【００４３】図１１に示すように、各座ぐり加工部材６
０は、その全体が前記嵌入溝２２内に嵌入可能な幅を有
し、被挾持板６１と、刃保持部６２とを一体に有してい
る。そして、刃保持部６２に段部６３が形成され、この
段部６３に座ぐり用刃部５０が嵌着、固定されている。
被挾持板６１には、工具径方向に延びる長孔であるボル
ト挿通孔６４が形成され、このボルト挿通孔６４の幅寸
法は前記ボルト３６の直径よりもわずかに大きな寸法に
設定されている。As shown in FIG. 11, each counterbore processing member 6
Numeral 0 has a width such that the entirety can be fitted into the fitting groove 22, and the holding plate 61 and the blade holding portion 62 are integrally formed. A step 63 is formed in the blade holder 62, and the counterbore blade 50 is fitted and fixed to the step 63.
A bolt insertion hole 64 which is a long hole extending in the tool radial direction is formed in the holding plate 61, and the width of the bolt insertion hole 64 is set to be slightly larger than the diameter of the bolt 36.
【００４４】この構造によれば、前記嵌入溝２２に被挾
持板６１を嵌入し、ボルト挿通孔１７，６４の双方にボ
ルト３６を挿通して円筒状刃物１２側のナット部材３０
に螺合することにより、前記第１の実施の形態と同様、
刃物装着部１０と円筒状刃物１２との間に被挾持板６１
を挟み込んだ状態で刃物装着部１０と円筒状刃物１２と
を締結できる。また、上記ボルト挿通孔６４は径方向に
延びる長孔とされているので、図１２（ａ）（ｂ）に示
すように円筒状刃物１２の径を変更した場合でも、常に
座ぐり加工部材６０を正規の位置（座ぐり用刃部５０が
ボディ２４の基端部外周面にほぼ当接する位置）に取付
けることができる。従って、穿孔径を変更する場合にも
共通の座ぐり加工部材６０が利用でき、より一層のコス
ト削減ができる。According to this structure, the holding plate 61 is fitted into the fitting groove 22, and the bolt 36 is inserted into both the bolt insertion holes 17 and 64, so that the nut member 30 on the cylindrical blade 12 side.
By screwing in the same manner as in the first embodiment,
A holding plate 61 is provided between the blade mounting portion 10 and the cylindrical blade 12.
The blade mounting portion 10 and the cylindrical blade 12 can be fastened in a state in which is sandwiched. Further, since the bolt insertion hole 64 is a long hole extending in the radial direction, even if the diameter of the cylindrical blade 12 is changed as shown in FIGS. Can be mounted at a regular position (a position where the spot facing blade portion 50 substantially abuts the outer peripheral surface of the base end portion of the body 24). Therefore, the common counterbore processing member 60 can be used even when the hole diameter is changed, and the cost can be further reduced.
【００４５】なお、第１の実施の形態、第２の実施の形
態のいずれにおいても、座ぐり用刃部５０の具体的な個
数は問わず、仕様に応じて適宜設定すればよい。In both the first and second embodiments, the specific number of the counterbore blades 50 is not limited, and may be set as appropriate according to the specifications.
【００４６】[0046]
【発明の効果】以上のように本発明は、円筒状刃物が着
脱される刃物装着部に着脱可能に装着され、この装着状
態で上記円筒状刃物の基端部の外周面から径方向外側に
突出する座ぐり用刃部をもつ座ぐり加工部材を備えたも
のであるので、この座ぐり加工部材を用いて穿孔後の座
ぐり加工ができるとともに、円筒状刃物が破損した場合
にも共通の刃物装着部及び座ぐり加工部材を使用するこ
とができ、その分経済性を高めることができる。また、
上記刃物装着部に座ぐり加工部材を装着せずに円筒状刃
物のみを装着することにより、穿孔作業のみを行う場合
にも利用できるので、工具の汎用性も高めることができ
る効果が得られる。As described above, according to the present invention, the cylindrical blade is detachably mounted on the blade mounting portion to which the cylindrical blade is mounted, and in this mounted state, radially outward from the outer peripheral surface of the base end of the cylindrical blade. Since it is equipped with a counterbore processing member having a protruding counterbore blade, it is possible to perform counterbore processing after drilling using this counterbore processing member, and to perform a common operation even when the cylindrical blade is damaged. The blade mounting portion and the counterbore processing member can be used, and the economy can be improved accordingly. Also,
By mounting only the cylindrical blade without mounting the counterbore processing member on the blade mounting portion, it can be used even when only drilling work is performed, so that the effect that the versatility of the tool can be improved can be obtained.
【００４７】また、共通の刃物装着部に互いに穿孔径の
異なる複数種の円筒状刃物が装着可能となるように構成
したものにおいては、穿孔径の変更があった場合に工具
全体を交換する必要はなく、少なくとも刃物装着部には
共通のものが使用できるため、その分コストを削減でき
る効果が得られる。In the case where a plurality of types of cylindrical blades having different drilling diameters can be mounted on a common blade mounting portion, it is necessary to replace the entire tool when the drilling diameter is changed. However, since a common tool can be used at least for the blade mounting portion, the effect of reducing costs can be obtained.
【００４８】上記座ぐり加工部材が上記刃物装着部と円
筒状刃物の基端との間に挟まれることにより固定される
ようにしたものによれば、この座ぐり加工部材を刃物装
着部に固定するための取付具を不要にしてコストを削減
できるとともに、取付作業も容易化できる効果が得られ
る。According to the counterbore processing member, which is fixed by being sandwiched between the blade mounting portion and the base end of the cylindrical blade, the counterbore processing member is fixed to the blade mounting portion. This eliminates the need for a mounting tool for mounting, thereby reducing costs and facilitating the mounting operation.
【００４９】より具体的に、上記座ぐり加工部材の本体
を、上記円筒状刃物の基端部に嵌着されるリング状本体
とし、このリング状本体から径方向外側に突出する位置
に複数の座ぐり用刃部を設けたものによれば、単一のリ
ング状本体を円筒状刃物の基端部に嵌着するだけで、複
数の座ぐり用刃部のセットが同時にできる。また、上記
リング状本体の基端部に形成された被挾持部を上記円筒
状刃物の基端部と刃物装着部とに挟みこむことにより、
上記リング状本体の固定も確実に行うことがてきる。More specifically, the main body of the counterbore processing member is a ring-shaped main body fitted to the base end of the cylindrical cutting tool, and a plurality of positions are provided at positions protruding radially outward from the ring-shaped main body. According to the one provided with the counterbore blade portion, a plurality of counterbore blade portions can be set at the same time simply by fitting a single ring-shaped main body to the base end portion of the cylindrical blade. Also, by sandwiching the clamped portion formed at the base end of the ring-shaped main body between the base end of the cylindrical blade and the blade mounting portion,
The ring-shaped main body can also be securely fixed.
【００５０】さらに、上記座ぐり加工部材において上記
座ぐり用刃部の後方にその穿孔径よりも大きな外径をも
つ座ぐり規制部を設ければ、座ぐり深さを一定化できる
効果が得られる。Further, if the counterbore processing member is provided with a counterbore regulating portion having an outer diameter larger than the diameter of the perforation, the counterbore depth is provided behind the counterbore blade portion. Can be
【００５１】また、周方向に並べて設けられる複数の座
ぐり加工部材を備え、各座ぐり加工部材に、上記刃物装
着部と円筒状刃物の基端との間に挟まれて固定される被
挾持部と、この被挾持部が固定された状態で上記円筒状
刃物の基端部の径方向外側に位置する単一の座ぐり用刃
部とを設けたものにおいても、刃物装着部と円筒状刃物
との連結作業だけで座ぐり加工部材の取付ができる効果
が得られる。Further, a plurality of counterbore processing members provided in a circumferential direction are provided, and each of the counterbore processing members is sandwiched and fixed between the blade mounting portion and the base end of the cylindrical blade. And a single counterbore blade located radially outside the base end of the cylindrical blade with the clamped portion fixed, the blade mounting portion and the cylindrical The effect that the counterbore processing member can be attached only by the connection work with the blade is obtained.
【００５２】ここで、上記円筒状刃物にねじ孔を設け、
上記刃物装着部において上記ねじ孔に対応する位置にボ
ルト挿通孔を設け、このボルト挿通孔にボルトが挿通さ
れた状態で同ボルトが上記ねじ孔に螺合されることによ
り刃物装着部と円筒状刃物とが締結されるように構成す
るとともに、上記被挾持部に上記ボルトが挿通されるボ
ルト挿通孔を設ければ、ボルト挿通個所に上記被挾持部
を配することができ、座ぐり加工部材が固定される力を
より強固にできる効果が得られる。Here, a screw hole is provided in the cylindrical cutting tool,
A bolt insertion hole is provided at a position corresponding to the screw hole in the blade mounting portion, and the bolt is screwed into the screw hole in a state where the bolt is inserted in the bolt insertion hole, so that the blade mounting portion and the cylindrical shape are formed. If the blade is configured to be fastened and a bolt insertion hole through which the bolt is inserted is provided in the clamped portion, the clamped portion can be arranged at the bolt insertion point, and a counterbore processing member is provided. This has the effect of increasing the force with which is fixed.
【００５３】さらに、上記被挾持部のボルト挿通孔を工
具径方向に延びる長孔とすれば、穿孔径を変更する場合
（すなわち円筒状刃物の径を変更する場合）にも、共通
の座ぐり加工部材を利用でき、コストをさらに削減でき
る効果が得られる。Further, if the bolt insertion hole of the holding portion is an elongated hole extending in the tool radial direction, the common counterbore can be used even when the hole diameter is changed (that is, when the diameter of the cylindrical blade is changed). The effect that the processed member can be used and the cost can be further reduced is obtained.
【図１】本発明の第１の実施の形態にかかる孔開け工具
の分解斜視図である。FIG. 1 is an exploded perspective view of a drilling tool according to a first embodiment of the present invention.
【図２】図３のＣ−Ｃ線断面図である。FIG. 2 is a sectional view taken along line CC of FIG. 3;
【図３】上記孔開け工具における刃物装着部の底面図で
ある。FIG. 3 is a bottom view of a blade mounting portion of the drilling tool.
【図４】上記孔開け工具におけるナット部材の取付構造
を示す斜視図である。FIG. 4 is a perspective view showing a mounting structure of a nut member in the drilling tool.
【図５】上記孔開け工具の一部破断平面図である。FIG. 5 is a partially broken plan view of the drilling tool.
【図６】上記孔開け工具の正面図である。FIG. 6 is a front view of the drilling tool.
【図７】（ａ）は図５のＡ−Ａ線断面図、（ｂ）は図６
のＢ−Ｂ線断面図である。7A is a sectional view taken along line AA of FIG. 5, and FIG.
FIG. 7 is a sectional view taken along line BB of FIG.
【図８】上記孔開け工具に設けられる座ぐり加工部材の
要部を示す一部断面斜視図である。FIG. 8 is a partial cross-sectional perspective view showing a main part of a counterbore processing member provided in the drilling tool.
【図９】本発明の第２の実施の形態における孔開け工具
の要部を示す断面正面図である。FIG. 9 is a sectional front view showing a main part of a drilling tool according to a second embodiment of the present invention.
【図１０】本発明の第３の実施の形態にかかる孔開け工
具の分解斜視図である。FIG. 10 is an exploded perspective view of a drilling tool according to a third embodiment of the present invention.
【図１１】上記孔開け工具に設けられる座ぐり加工部材
の斜視図である。FIG. 11 is a perspective view of a counterbore processing member provided in the drilling tool.
【図１２】（ａ）は上記孔開け工具において大径の円筒
状刃物を装着した状態を示す断面正面図、（ｂ）は小径
の円筒状刃物を装着した状態を示す断面正面図である。12A is a cross-sectional front view showing a state in which a large-diameter cylindrical blade is mounted on the drilling tool, and FIG. 12B is a cross-sectional front view showing a state in which a small-diameter cylindrical blade is mounted.
【図１３】（ａ）（ｂ）は一般的な壁板へのパイプ取付
構造を示す断面図である。13 (a) and 13 (b) are cross-sectional views showing a general structure for attaching a pipe to a wall plate.
【図１４】従来の座ぐり加工機能付孔開け工具の一例を
示す正面図である。FIG. 14 is a front view showing an example of a conventional drilling tool with a spot facing function.
１０ 刃物装着部 １２ 円筒状刃物 １４，６０ 座ぐり加工部材 ２４ａ 穿孔用刃部 ３０ ナット部材 ４０ リング状本体 ４２ フランジ部（被挾持部） ５０ 座ぐり用刃部 ５４ フランジ板（座ぐり規制部） ６１ 被挾持板 ６４ ボルト挿通孔 DESCRIPTION OF SYMBOLS 10 Blade mounting part 12 Cylindrical blade 14, 60 Counterbore processing member 24a Drilling blade part 30 Nut member 40 Ring-shaped main body 42 Flange part (clamped part) 50 Counterbore blade part 54 Flange plate (Counterbore restriction part) 61 Holding plate 64 Bolt insertion hole
Claims (9)
が着脱可能に装着され、先端に穿孔用刃部をもつ円筒状
刃物とを備え、上記刃物装着部と円筒状刃物とが一体に
回転駆動された状態で加工物を穿孔する孔開け工具にお
いて、上記刃物装着部に着脱可能に装着され、この装着
状態で上記円筒状刃物の基端部の外周面から径方向外側
に突出する座ぐり用刃部をもつ座ぐり加工部材を備えた
ことを特徴とする孔開け工具。1. A blade mounting portion, and a cylindrical blade having a base end detachably mounted on the blade mounting portion and having a drilling blade portion at a distal end, wherein the blade mounting portion and the cylindrical blade are connected to each other. In a drilling tool for drilling a workpiece while being integrally rotated and driven, the drilling tool is detachably mounted on the blade mounting portion, and projects radially outward from an outer peripheral surface of a base end of the cylindrical blade in this mounted state. A boring tool comprising a counterbore processing member having a counterbore blade portion to be formed.
通の刃物装着部に互いに穿孔径の異なる複数種の円筒状
刃物が装着可能となるように構成したことを特徴とする
孔開け工具。2. The drilling tool according to claim 1, wherein a plurality of types of cylindrical blades having different drilling diameters can be mounted on a common blade mounting portion.
いて、上記座ぐり加工部材が上記刃物装着部と円筒状刃
物の基端との間に挟まれることにより固定されるように
構成したことを特徴とする孔開け工具。3. The drilling tool according to claim 1, wherein the counterbore processing member is fixed by being sandwiched between the blade mounting portion and a base end of a cylindrical blade. A hole drilling tool.
記座ぐり加工部材の本体を、上記円筒状刃物の基端部に
嵌着されるリング状本体とし、このリング状本体から径
方向外側に突出する位置に複数の座ぐり用刃部を設ける
とともに、上記リング状本体の基端部に上記円筒状刃物
と刃物装着部との間に挟まれる被挾持部を形成したこと
を特徴とする孔開け工具。4. The drilling tool according to claim 3, wherein the body of the counterbore processing member is a ring-shaped body fitted to a base end of the cylindrical blade, and is radially outward from the ring-shaped body. A plurality of counterbore blades are provided at positions protruding from the ring-shaped body, and a clamped portion sandwiched between the cylindrical blade and the blade mounting portion is formed at a base end of the ring-shaped body. Drilling tool.
記座ぐり加工部材においてて上記座ぐり用刃部の後方に
その穿孔径よりも大きな外径をもつ座ぐり規制部を設け
たことを特徴とする孔開け工具。5. The boring tool according to claim 4, wherein a counterbore restricting portion having an outer diameter larger than a bore diameter of the counterbore cutting member is provided behind the counterbore blade portion in the counterbore processing member. Features a drilling tool.
方向に並べて設けられる複数の座ぐり加工部材を備え、
各座ぐり加工部材に、上記刃物装着部と円筒状刃物の基
端との間に挟まれて固定される被挾持部と、この被挾持
部が固定された状態で上記円筒状刃物の基端部の径方向
外側に位置する単一の座ぐり用刃部とを設けたことを特
徴とする孔開け工具。6. The drilling tool according to claim 3, further comprising a plurality of counterbored members provided side by side in the circumferential direction.
Each of the counterbore processing members has a clamped portion that is sandwiched and fixed between the blade mounting portion and the base end of the cylindrical blade, and a base end of the cylindrical blade in a state where the clamped portion is fixed. And a single counterbore blade located radially outward of the part.
記円筒状刃物にねじ孔を設け、上記刃物装着部において
上記ねじ孔に対応する位置にボルト挿通孔を設け、この
ボルト挿通孔にボルトが挿通された状態でこのボルトが
上記ねじ孔に螺合されることにより刃物装着部と円筒状
刃物とが締結されるように構成するとともに、上記被挾
持部に上記ボルトが挿通されるボルト挿通孔を設けたこ
とを特徴とする孔開け工具。7. The drilling tool according to claim 6, wherein a screw hole is provided in the cylindrical blade, a bolt insertion hole is provided at a position corresponding to the screw hole in the blade mounting portion, and a bolt is provided in the bolt insertion hole. When the bolt is screwed into the screw hole in a state where the bolt is inserted, the blade mounting portion and the cylindrical blade are fastened to each other, and the bolt is inserted through the clamped portion. A drilling tool characterized by having holes.
記被挾持部のボルト挿通孔を工具径方向に延びる長孔と
したことを特徴とする孔開け工具。8. The drilling tool according to claim 7, wherein the bolt insertion hole of the pinched portion is an elongated hole extending in the tool radial direction.
が着脱可能に装着され、先端に穿孔用刃部をもつ円筒状
刃物とを備え、上記刃物装着部と円筒状刃物とが一体に
回転駆動された状態で加工物を穿孔する孔開け工具に設
けられる座ぐり加工部材であって、上記刃物装着部と円
筒状刃物の基端との間に挟まれることにより固定される
被挾持部と、この被挾持部が固定された状態で上記円筒
状刃物の基端部の径方向外側の位置に座ぐり用刃部を保
持する刃保持部とを備えたことを特徴とする孔開け工具
に設けられる座ぐり加工部材。9. A blade mounting portion, and a cylindrical blade having a base end portion detachably mounted on the blade mounting portion and having a drilling blade portion at a distal end, wherein the blade mounting portion and the cylindrical blade are connected to each other. A counterbore processing member provided on a drilling tool for punching a workpiece while being integrally rotated and driven, wherein the workpiece is fixed by being sandwiched between the blade mounting portion and a base end of a cylindrical blade. A hole provided with a holding portion and a blade holding portion for holding a spot facing blade portion at a position radially outward of a base end portion of the cylindrical blade in a state where the holding portion is fixed. Counterbore processing member provided on opening tool.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16749996A JPH106117A (en) | 1996-06-27 | 1996-06-27 | Boring tool and spot facing work member arranged in boring tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16749996A JPH106117A (en) | 1996-06-27 | 1996-06-27 | Boring tool and spot facing work member arranged in boring tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH106117A true JPH106117A (en) | 1998-01-13 |
Family
ID=15850823
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16749996A Withdrawn JPH106117A (en) | 1996-06-27 | 1996-06-27 | Boring tool and spot facing work member arranged in boring tool |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH106117A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005238344A (en) * | 2004-02-24 | 2005-09-08 | Miyanaga:Kk | Core drill |
| WO2006097980A1 (en) | 2005-03-11 | 2006-09-21 | Kabushiki Kaisha Miyanaga | Core drill |
| US8025466B2 (en) * | 2007-05-16 | 2011-09-27 | Hunt Marty D | Removable countersink bit |
-
1996
- 1996-06-27 JP JP16749996A patent/JPH106117A/en not_active Withdrawn
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005238344A (en) * | 2004-02-24 | 2005-09-08 | Miyanaga:Kk | Core drill |
| JP4549076B2 (en) * | 2004-02-24 | 2010-09-22 | 株式会社ミヤナガ | Core drill |
| WO2006097980A1 (en) | 2005-03-11 | 2006-09-21 | Kabushiki Kaisha Miyanaga | Core drill |
| EP1864734A1 (en) * | 2005-03-11 | 2007-12-12 | Kabushiki Kaisha Miyanaga | Core drill |
| EP1864734A4 (en) * | 2005-03-11 | 2010-08-11 | Miyanaga Kk | Core drill |
| US8100612B2 (en) | 2005-03-11 | 2012-01-24 | Kabushiki Kaisha Miyanaga | Core drill |
| US8025466B2 (en) * | 2007-05-16 | 2011-09-27 | Hunt Marty D | Removable countersink bit |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A300 | Withdrawal of application because of no request for examination |
Free format text: JAPANESE INTERMEDIATE CODE: A300 Effective date: 20030902 |