JPH081797Y2 - Chip discharging mechanism for rolling tools - Google Patents
Chip discharging mechanism for rolling toolsInfo
- Publication number
- JPH081797Y2 JPH081797Y2 JP1990032018U JP3201890U JPH081797Y2 JP H081797 Y2 JPH081797 Y2 JP H081797Y2 JP 1990032018 U JP1990032018 U JP 1990032018U JP 3201890 U JP3201890 U JP 3201890U JP H081797 Y2 JPH081797 Y2 JP H081797Y2
- Authority
- JP
- Japan
- Prior art keywords
- cover
- tip
- chip
- cutter body
- chips
- 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.)
- Expired - Lifetime
Links
Landscapes
- Auxiliary Devices For Machine Tools (AREA)
- Milling Processes (AREA)
Description
【考案の詳細な説明】 ［産業上の利用分野］ この考案は、例えば正面フライス等、被削材の平面切
削に用いられる転削工具に係り、詳しくは切削に伴って
生成される切屑を逐次処理できる転削工具に関する。DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to a rolling tool used for plane cutting of a work material such as a face milling cutter, and more specifically, to successively generate chips generated by cutting. Regarding a milling tool that can be processed.
［従来の技術］ 被削材の平面加工に用いられる転削工具の一例とし
て、従来より、第７図ないし第９図に示す正面フライス
が知られている。[Prior Art] As an example of a rolling tool used for flat machining of a work material, a face milling machine shown in Figs. 7 to 9 is conventionally known.
これらの図に示す正面フライスは、略円筒状をなす工
具本体１の先端外周部に、該工具本体１の先端面及び外
周面に向けて開口する複数の凹溝２が周方向へ等間隔に
形成され、これら凹溝２に、スローアウエイチツプ（以
下、チツプと略称する。）３が、クランプネジ４で締め
込まれる楔部材５によって着脱自在に装着される一方
で、各チツプ３のすくい面3aと向かい合う工具本体１の
外周面に壁面円弧状をなすチツプポケツト６が形成さ
れ、さらに工具本体１の中心に該工具本体１を軸線方向
に貫く中心孔７が形成されてなるものである。The front milling cutter shown in these figures has a plurality of concave grooves 2 which are open toward the tip end surface and the outer peripheral surface of the tool body 1 in the outer peripheral portion of the tool body 1 having a substantially cylindrical shape at equal intervals in the circumferential direction. A throwaway chip (hereinafter abbreviated as “chip”) 3 is formed in these concave grooves 2 and is detachably mounted by a wedge member 5 tightened by a clamp screw 4, while the rake face of each chip 3 is formed. A chip pocket 6 having an arcuate wall surface is formed on the outer peripheral surface of the tool body 1 facing the 3a, and a center hole 7 is formed at the center of the tool body 1 so as to penetrate the tool body 1 in the axial direction.
このように構成された正面フライスは、機械本体の主
軸８にキー９を介して取り付けられたアーバ10の嵌合軸
11に中心孔７が嵌合された上で締付けボルト12により締
結されて主軸８と一体化される。そしてこの状態で、工
具本体１が主軸８によって軸線回りに回転せしめられる
と共に軸線と直交する方向に送られて、チツプ３の切刃
13が被削材を平面加工してゆくようになっており、この
とき生成される切屑は、すくい面3aからチツプポケツト
６の壁面に誘導されて丸め込まれた上で工具本体１の周
方向外方へ排出される。The face milling machine configured in this way is a fitting shaft for the arbor 10 that is attached to the main shaft 8 of the machine body via the key 9.
The center hole 7 is fitted in 11 and is tightened by a tightening bolt 12 to be integrated with the main shaft 8. Then, in this state, the tool body 1 is rotated around the axis by the main shaft 8 and is sent in the direction orthogonal to the axis to cut the cutting edge of the chip 3.
13 is adapted to flatten the work material, and the chips generated at this time are guided from the rake face 3a to the wall surface of the chip pocket 6 and rounded, and then outward in the circumferential direction of the tool body 1. Is discharged to.
［考案が解決しようとする課題］ ところで、上述した従来の正面フライスは、生成され
る切屑を単にその周方向外方へ誘導排出するのみである
ため、工具本体１の回転に伴って切屑が機械周囲へと広
く飛散し、この結果作業環境が悪化し、また、切削終了
後の切屑処理にも相当の時間を要するという欠点があっ
た。[Problems to be Solved by the Invention] By the way, the above-described conventional face milling machine merely guides and discharges the generated chips outward in the circumferential direction thereof, so that the chips are machined as the tool body 1 rotates. It has a drawback that it scatters widely to the surroundings, as a result of which the working environment is deteriorated, and that it takes a considerable amount of time for chip disposal after cutting.
また、切削を継続するにつれて切屑が被削材や機械の
テーブル等に徐々に堆積してゆくため、これら切屑の熱
によって被削材や機械に熱変形が生じて加工精度が劣化
したり、あるいは切刃13に切屑が噛み込まれて切削面の
品位が損なわれる欠点もあった。さらに、機械の周囲に
飛散した切屑が機械の摺動面等に入り込んで、機械自身
の精度劣化や寿命低下を招くおそれもあった。Further, as the cutting is continued, chips are gradually deposited on the work material and the table of the machine, so that the heat of these chips causes thermal deformation of the work material and the machine, which deteriorates the machining accuracy, or There is also a drawback that chips are caught in the cutting edge 13 and the quality of the cutting surface is impaired. Furthermore, chips scattered around the machine may enter the sliding surface of the machine or the like, resulting in deterioration of accuracy of the machine itself or shortening of service life.
このような問題を改善する装置として、例えば米国特
許第2944465号のように、カッタ本体の外周を覆う切屑
吸引用のカバーを工作機械の非回転部に固定して、切刃
で生じる切屑をカッタ本体とカバーとの間の空間に吸引
して排出しようとする切屑吸引装置が提案されている。
しかしながら、この装置は、カッタ本体及びカバー先端
部間の切屑吸引口と、切屑を生成する切刃とがかなり離
間しているために、切屑の誘導と吸引とが不十分であ
り、特にカッター本体とカバーとの間の間隙が大きいた
めに吸引力が小さく、しかも一旦被削材表面に落下した
切屑を吸引しようとするものであり、切屑の飛散を十分
に防止できなかった。As a device for improving such a problem, for example, as in U.S. Pat.No. 2944465, a chip suction cover that covers the outer periphery of the cutter body is fixed to a non-rotating portion of a machine tool, and the chips generated by the cutting blade are cut by the cutter. There has been proposed a chip suction device that sucks into a space between a main body and a cover to eject the chip.
However, in this device, since the chip suction port between the cutter body and the tip of the cover and the cutting blade that generates chips are considerably separated from each other, the guidance and suction of the chips are insufficient, and especially the cutter body. Since the gap between the cover and the cover is large, the suction force is small, and the chips once dropped onto the surface of the work are to be sucked, so that the scattering of the chips cannot be sufficiently prevented.
この考案は、このような背景の下になされたもので、
切削に伴って生成される切屑を機械周囲に広く飛散させ
ることなく回収することができる転削工具を提供するこ
とを目的とする。This idea was made in such a background,
An object of the present invention is to provide a rolling tool capable of recovering chips generated by cutting without widely scattering around the machine.
［課題を解決するための手段］ 上記課題を解決するために、この考案の転削工具の切
屑排出機構は、カッタ本体の先端外周部に切刃チップが
設けられ、この切刃チップのすくい面との間に隙間を形
成するように切屑案内部材がカッタ本体に配置されてい
ると共に、カッタ本体の周面外方を覆いかつその先端開
口部がカッタ本体の切刃チップの先端よりわずかに後退
する位置にある略円筒状のカバーが配設されて、このカ
バーの内周面とカッタ本体の外周面との間に切屑収納室
が形成され、且つ切屑収納室と吸引機とを連結する連通
部がカバーに設けられていて、切屑を隙間から吸引排出
させるようにした転削工具の切屑排出機構において、カ
バーの先端部には、切刃の被削材に対する切込み量より
若干深くて被削材の被切削部が通過可能な切欠部が形成
されていることを特徴とするものである。[Means for Solving the Problems] In order to solve the above problems, in the chip discharging mechanism of the rolling tool of the present invention, a cutting blade tip is provided on the tip outer peripheral portion of the cutter body, and the rake face of the cutting blade tip is provided. A chip guide member is arranged on the cutter body so as to form a gap between the cutter body and the outer peripheral surface of the cutter body, and its tip opening is slightly retracted from the tip of the cutting blade tip of the cutter body. A substantially cylindrical cover at a position where the chip storage chamber is formed between the inner peripheral surface of the cover and the outer peripheral surface of the cutter body, and the communication for connecting the chip storage chamber and the suction device. In the chip discharging mechanism of the rolling tool, which has a part on the cover to suck and discharge chips from the gap, the tip of the cover is slightly deeper than the cutting amount of the cutting blade with respect to the work material Cut that allows the cut part of the material to pass through It is characterized in that a notch is formed.
また、カバーは、支持カバーとその先端側に取り付けら
れていてカッタ本体の軸線方向に進退可能な可動カバー
とからなり、この可動カバーの先端部に切欠部が形成さ
れていることを特徴とする。Further, the cover is composed of a support cover and a movable cover which is attached to the tip side of the support cover and is movable back and forth in the axial direction of the cutter body, and a notch is formed at the tip of the movable cover. .
［作用］ 上記構成の転削工具にあっては、カバーを、その先端
部が切刃チツプの工具先端側を向く切刃よりも僅かに工
具基端側へ後退するように位置決めし、この後、排出口
からカバー内の空気を吸引しつつ、工具本体を、その軸
線と直交する方向でかつカバーの切欠きが位置する側へ
送り出すことにより、上記切欠き部分に露出する切刃チ
ツプで被削材を切削してゆく。[Operation] In the rolling tool having the above-described configuration, the cover is positioned so that the tip of the cover is slightly retracted to the tool base end side from the cutting edge of the cutting edge chip facing the tool tip side. While sucking the air in the cover from the discharge port, the tool body is sent to the side where the notch of the cover is located in the direction orthogonal to the axis of the tool body, so that the cutting edge chip exposed at the notch portion is covered. Cutting the cutting material.
このとき、切屑収納室からの空気の吸引に伴って工具
先端部の周囲の空気が切屑収納室内へと吸引されるの
で、切刃チツプで生成される切屑は、切屑案内部材によ
って案内されつつ逐次切屑収納室に吸引され、さらには
排出口から回収される。At this time, since air around the tool tip is sucked into the chip storage chamber as air is sucked from the chip storage chamber, the chips generated by the cutting blade chip are sequentially guided while being guided by the chip guide member. It is sucked into the chip storage chamber and then collected from the discharge port.
また、上記の切削時においては、上記カバーの先端部
が工具先端側を向く切刃よりも僅かに工具基端側へ後退
した位置に位置決めされるので、工具の送り方向後端側
においては、カバー先端部と、上記切刃チツプで削成さ
れた被削材の加工面との間の隙間が極小になり、これら
の隙間の拡大による切屑吸引力の低下が回避される。Further, at the time of the above cutting, since the tip end portion of the cover is positioned at a position slightly retracted to the tool base end side from the cutting edge facing the tool tip end side, on the tool feed direction rear end side, The gap between the tip of the cover and the machined surface of the work material machined by the cutting edge chip is minimized, and a decrease in the chip suction force due to the expansion of these gaps is avoided.
また、切込み量を多少調整しても可動カバーを移動さ
せることで、可動カバーと被削材の加工面との間の隙間
を最小限に設定でき、可動カバー先端部全周に亘って吸
引力の低下を最小に抑制できることになる。Even if the depth of cut is adjusted slightly, moving the movable cover minimizes the gap between the movable cover and the machined surface of the work material. It is possible to minimize the decrease of
［実施例］ 以下、第１図ないし第４図を参照して、本考案の一実
施例を説明する。なお、上述した従来例と同一の構成要
素には同一符号を付し、その説明を省略する。An embodiment of the present invention will be described below with reference to FIGS. 1 to 4. The same components as those of the above-described conventional example are denoted by the same reference numerals, and description thereof will be omitted.
これらの図において符号20は工具本体である。この工
具本体20は上述した従来例と同様に略円筒状をなし、そ
の先端外周部の凹溝２には、チツプ３がクランプねじ４
で絞め込まれる楔部材５によって着脱自在に装着されて
いる。一方、工具本体20の基端側には、当該工具本体20
は工作機械の主軸８に装着するためのアーバ21が、締付
けボルト12によって同軸的に固定されている。In these drawings, reference numeral 20 is a tool body. The tool main body 20 has a substantially cylindrical shape similar to the above-mentioned conventional example, and the chip 3 is provided with the clamp screw 4 in the concave groove 2 on the outer peripheral portion of the tip.
It is detachably attached by the wedge member 5 which is narrowed down by. On the other hand, on the base end side of the tool body 20,
An arbor 21 for mounting on the spindle 8 of the machine tool is coaxially fixed by a tightening bolt 12.
このアーバ21には、ラジアルベアリング22が嵌装され
て止め輪23で軸方向に係止されている。そして、ラジア
ルベアリング22の外輪にはカバー24が嵌装され、該カバ
ー24は、キャップ25とボルト26で連結されることによっ
てアーバ21に回転自在に支持されている。A radial bearing 22 is fitted on the arbor 21 and is axially locked by a retaining ring 23. A cover 24 is fitted on the outer ring of the radial bearing 22, and the cover 24 is rotatably supported by the arbor 21 by being connected to the cap 25 by a bolt 26.
カバー24は、上記アーバ21に支持された略円筒状の支
持カバー27と、この支持カバー27の先端部に嵌装された
略円筒状の可動カバー28とからなるもので、可動カバー
28は、支持カバー27の外周部の長穴29（第４図参照）に
挿通されたボルト30と螺合されることにより、該支持カ
バー27に対して工具本体20の軸線方向に移動自在に連結
されている。The cover 24 is composed of a substantially cylindrical support cover 27 supported by the arbor 21 and a substantially cylindrical movable cover 28 fitted to the tip of the support cover 27.
28 is movable in the axial direction of the tool body 20 with respect to the support cover 27 by being screwed into a bolt 30 inserted in an elongated hole 29 (see FIG. 4) in the outer peripheral portion of the support cover 27. It is connected.
可動カバー28の先端は、チツプ３の外周側を向く切刃
13と工具軸方向に重なり合う位置まで延長され、その一
部には切欠き31が形成されている。この切欠き31は長方
形状をなし、その幅ｗは被削材Ｃの幅よりも幾らか大き
く、また深さｄは上記切刃13の被削材Ｃに対する切込量
よりも幾らか大きく定められている。The tip of the movable cover 28 has a cutting edge that faces the outer peripheral side of the chip 3.
A notch 31 is formed in a part of the member 13 extending to a position overlapping 13 with the tool axial direction. The notch 31 has a rectangular shape, its width w is set to be slightly larger than the width of the work material C, and its depth d is set to be slightly larger than the cutting amount of the cutting edge 13 with respect to the work material C. Has been.
また、可動カバー28の先端部内径は、上記切刃13の回
転径よりも僅かに大きく定められている。この可動カバ
ー28の内周面と上記切刃13との間の隙間量δは、被削材
の材質や切削条件等に応じて適宜定められるが、0.5mm
〜2mmの範囲内に定めることが望ましく、より確実な切
屑処理を行うには0.5mm〜1mmの範囲内に設定することが
望ましい。隙間量δが0.5mmに満たないと、可動カバー2
8の偏芯等によって切刃13が食い込むおそれがあり、他
方、隙間量δが2mmを超えると後述する切屑吸引力が低
下して切屑処理に支障を来すおそれが生じるからであ
る。The inner diameter of the tip of the movable cover 28 is set to be slightly larger than the rotation diameter of the cutting edge 13. The gap amount δ between the inner peripheral surface of the movable cover 28 and the cutting edge 13 is appropriately determined according to the material of the work material, cutting conditions, etc., but is 0.5 mm.
It is desirable to set it within the range of 2 mm, and it is desirable to set it within the range of 0.5 mm to 1 mm for more reliable chip disposal. If the gap amount δ is less than 0.5 mm, the movable cover 2
This is because the cutting edge 13 may bite due to the eccentricity of 8 or the like, and on the other hand, if the gap amount δ exceeds 2 mm, the chip suction force described below may be reduced and the chip processing may be hindered.
上記カバー24の外周部のうち、上記切欠き31の上方に
位置する部分には、当該カバー24の内周面と工具本体20
の外周面との間に画成される切屑収納室32と、カバー24
の外部とを連通する円形の排出口33が形成されている。
そして、この排出口33には中空状をなす排出管34が嵌装
され、この排出管34には、図示せぬ吸引機と連結された
吸引ホース35の先端部が嵌め込まれている。また、支持
カバー27の内周面の上部には、切屑収納室32とラジアル
ベアリング22とを隔離する隔壁36が形成されている。Of the outer peripheral portion of the cover 24, the inner peripheral surface of the cover 24 and the tool body 20 are provided in a portion located above the notch 31.
Chip storage chamber 32 defined between the outer peripheral surface of the
A circular discharge port 33 that communicates with the outside is formed.
A hollow discharge pipe 34 is fitted into the discharge port 33, and a tip end portion of a suction hose 35 connected to a suction device (not shown) is fitted into the discharge pipe 34. Further, a partition wall 36 that separates the chip storage chamber 32 and the radial bearing 22 is formed on the upper portion of the inner peripheral surface of the support cover 27.
また、第２図及び第３図に詳細に示すように、工具本
体20の先端部には切屑案内部材40が配設されている。こ
の切屑案内部材40は、円環状をなす基部41に、工具径方
向外方へ延びる複数の切屑案内部42が形成されてなるも
ので、基部41に挿通されるボルト43によって工具本体20
の先端面と略面一をなすように固定されている。Further, as shown in detail in FIGS. 2 and 3, a chip guide member 40 is arranged at the tip of the tool body 20. This chip guide member 40 is formed by forming a plurality of chip guide parts 42 extending outward in the tool radial direction on a base part 41 having an annular shape, and the tool body 20 is inserted by a bolt 43 inserted into the base part 41.
Is fixed so as to be substantially flush with the tip surface of the.
上記切屑案内部42の先端には、上記チツプポケツト６
に嵌まり込む突部44が形成され、この突部44の端面45と
チツプ３のすくい面3aとの間には所定幅の隙間ｔが設け
られている。この隙間ｔは、切刃13で生成された切屑を
カバー24の内部に案内するためのもので、その大きさ
は、生成される切屑の種類の応じて0.5mm〜2.0mm程度の
範囲に設定される。また、突部44には、上記端面45に開
口する溝部46が形成されており、上記隙間ｔを通過する
切屑の詰まりを防止して、切屑を滞りなくチツプポケツ
ト６に排出させる配慮がなされている。At the tip of the chip guide portion 42, the chip pocket 6 is attached.
A protrusion 44 that fits in the groove is formed, and a gap t having a predetermined width is provided between the end face 45 of the protrusion 44 and the rake face 3a of the chip 3. This gap t is for guiding the chips generated by the cutting blade 13 into the inside of the cover 24, and the size thereof is set in the range of about 0.5 mm to 2.0 mm depending on the type of chips generated. To be done. Further, the protrusion 44 is formed with a groove portion 46 opening to the end surface 45, so that clogging of chips passing through the gap t can be prevented and the chips can be discharged to the chip pocket 6 without delay. .
以上のように構成された正面フライスを用いて被削材
Ｃの平面加工を行うには、まず、可動カバー28を固定す
るボルト30を緩めて可動カバー28の先端位置をチツプ３
の工具先端側を向く切刃13よりも僅かに後退する位置に
調整し、この後、アーバ21を主軸８のテーパ穴8aに挿入
して工具本体20を主軸８に取り付ける。In order to perform the flat machining of the work material C using the front milling cutter configured as described above, first, the bolt 30 fixing the movable cover 28 is loosened and the tip position of the movable cover 28 is set to the tip 3.
The tool body 20 is attached to the main shaft 8 by inserting the arbor 21 into the taper hole 8a of the main shaft 8 and adjusting the position so as to be slightly retracted from the cutting edge 13 facing the tool tip side.
続いて、カバー24を工具本体20に対して周方向に回転
させて、その切欠き31が被削材Ｃと対向する向きに位置
決めし、この状態で排出管34に吸引ホース35を接続して
カバー24の周方向の移動を拘束する（第１図乃び第３図
参照）。Then, the cover 24 is rotated in the circumferential direction with respect to the tool body 20, and the notch 31 is positioned so as to face the workpiece C. In this state, the suction hose 35 is connected to the discharge pipe 34. The movement of the cover 24 in the circumferential direction is restricted (see FIG. 1 and FIG. 3).
そして、主軸８に工具本体20を装着した後、切屑収納
室32内の空気を吸引ホース35で吸引しつつ、主軸８によ
って工具本体20を回転させるとともに、工具本体20をカ
バー24の切欠き31が設けられた側（第１図矢印Ａ方向）
へ送り出すか、あるいは被削材Ｃを反対方向へ送り出す
ことにより、切欠き31に露出する切刃13で被削材Ｃの被
切削部C1を切削してゆく。Then, after the tool body 20 is mounted on the spindle 8, the tool body 20 is rotated by the spindle 8 while sucking the air in the chip storage chamber 32 with the suction hose 35, and the tool body 20 is cut into the notch 31 of the cover 24. Side where is provided (direction of arrow A in Fig. 1)
To the cut portion C 1 of the work material C by the cutting edge 13 exposed in the notch 31 by feeding the work material C in the opposite direction.
以上のようにして切削加工を行う場合、切屑収納室32
の内部には、吸引ホース35によって空気が吸引されるた
めに負圧が発生し、これに伴って可動カバー24の先端側
開口部からは工具本体20の先端部周囲の空気が吸引され
る。When performing cutting as described above, the chip storage chamber 32
Negative pressure is generated in the interior of the tool since air is sucked by the suction hose 35, and along with this, air around the tip of the tool body 20 is sucked from the opening on the tip side of the movable cover 24.
一方、チツプ３の切刃13で生成される切屑は、チツプ
すくい面3aと切屑案内部材40の端面45との間の隙間ｔに
案内されて逐次チツプポケツト６に導かれ、さらには、
チツプポケツト６で丸め込まれて分断される。そして、
分断された切屑は、カバー24の先端開口部から吸引され
る空気とともに切屑収納室32に吸引され、さらには、排
出口33、排出管34を介して吸引ホース35と連結された吸
引機に回収される。On the other hand, the chips generated by the cutting edge 13 of the chip 3 are guided to the gap t between the chip rake face 3a and the end face 45 of the chip guide member 40 and are successively guided to the chip pocket 6, and further,
It is rolled up with a chip pocket 6 and divided. And
The separated chips are sucked into the chip storage chamber 32 together with the air sucked from the opening of the tip of the cover 24, and are further collected in a suction device connected to the suction hose 35 via the discharge port 33 and the discharge pipe 34. To be done.
このように、本実施例の正面フライスによれば、切削
時に生成される切屑が工具本体20の周囲に飛散すること
なく、逐次切屑収納室32に吸引されてカバー24の外部に
回収されるので、作業環境が改善され、切屑処理に要す
る時間が短縮され、さらには、切屑の堆積による機械精
度の劣化や被削材Ｃの加工面C2の品位の劣化等も回避さ
れる等、切屑の飛散に伴う種々の問題がすべて解消され
るという優れた効果を奏する。As described above, according to the face milling machine of the present embodiment, the chips generated during cutting do not scatter around the tool body 20, but are sequentially sucked into the chip storage chamber 32 and collected outside the cover 24. The work environment is improved, the time required for chip disposal is shortened, and further, deterioration of mechanical accuracy due to accumulation of chips and deterioration of the quality of the machined surface C 2 of the work material C are avoided. It has an excellent effect that all the various problems caused by the scattering are solved.
しかも、本実施例の正面フライスでは、特にカバー24
の先端部に切欠き31を形成しているため、カバー24の先
端位置を、工具先端側を向く切刃13よりも僅かに工具後
端側へ後退する位置に定めることにより、カバー24の先
端と被削材Ｃとの間の隙間が必要最小限に止どめられ、
この結果、切刃13の周囲に最大の切屑吸引力が作用し
て、切屑の吸引回収が一層確実に行われるという効果を
奏する。ちなみに、切欠き31がない場合には、カバー24
の先端を、工具先端側を向く切刃13に対して、工具基端
側へ一律に切刃13の切り込み深さ以上後退させる必要が
生じるため、カバー24の先端部のうち工具送り方向後端
側の部分（第１図中のＢ部）と被削材Ｃの加工面C2との
間に切刃13の切り込み深さ以上の隙間が生じ、切屑吸引
力の低下が避けられないことになる。Moreover, in the face milling machine of this embodiment, the cover 24
Since the notch 31 is formed at the tip end of the cover 24, the tip end of the cover 24 is set to a position slightly retracted to the tool rear end side from the cutting edge 13 facing the tool tip side. The gap between the work and the work material C is kept to the minimum necessary,
As a result, the maximum chip suction force acts on the periphery of the cutting blade 13 to bring about an effect that the suction and collection of the chips can be performed more reliably. By the way, if there is no notch 31, cover 24
The tip of the cutting edge 13 facing the tool tip side needs to be uniformly retracted to the tool base end side by the cutting depth of the cutting edge 13 or more, so that the tip end of the cover 24 in the tool feeding direction rear end. A gap larger than the cutting depth of the cutting edge 13 is formed between the side portion (B portion in FIG. 1) and the machining surface C 2 of the work material C, and the reduction of the chip suction force cannot be avoided. Become.
なお、本実施例では特に工具本体20の先端にチツプ３
を装着したいわゆるスローアウエイ式の正面フライスに
ついて説明したが、本考案の転削工具はこれに限るもの
ではなく、チツプをロウ付けした正面フライス等、種々
の転削工具に適用できるものである。In this embodiment, the tip 3 of the tool body 20 is
Although the so-called throw away type face milling machine equipped with is described above, the rolling tool of the present invention is not limited to this and can be applied to various milling tools such as a face milling machine to which a chip is brazed.
また、切欠き31の形状も本実施例のように長方形状に
形成する場合に限るものではなく、例えば第５図及び第
６図に示すように、被削材Ｃの被切削部C1に凸部C3が設
けられている場合には、これに対応して切欠き31に凹部
50を設ける等、種々変形可能であることは勿論である。The shape of the notch 31 is not limited to a case of forming a rectangular shape as in this embodiment, for example, as shown in FIG. 5 and FIG. 6, to be cut portion C 1 of the workpiece C When the convex portion C 3 is provided, the concave portion is formed in the notch 31 correspondingly.
Of course, various modifications such as provision of 50 are possible.
［考案の効果］ 以上説明したように、この考案によれば、切削時に生
成される切屑を機械周囲に飛散させることなく逐次吸引
回収できるので、切屑処理時間を短縮し、作業環境を改
善し、さらには、機械精度の劣化を防止できる等、切屑
の飛散に伴う種々の問題をすべて解消することができ
る。[Effects of the Invention] As described above, according to the present invention, the chips generated during cutting can be sequentially sucked and collected without being scattered around the machine, which shortens the chip processing time and improves the working environment. Further, it is possible to prevent all kinds of problems associated with scattering of chips, such as prevention of deterioration of mechanical accuracy.
しかも、カバーの先端部に被削材の被切削部が通過し
得る切欠きを設けたため、カバー先端と被削材との間の
隙間を最小限に止どめることによって、工具先端部の周
囲に最大の切屑吸引力を作用させて切屑処理を一層確実
に行い得るという効果をも奏する。Moreover, since the notch that allows the cut portion of the work material to pass through is provided at the tip of the cover, the gap between the tip of the cover and the work can be minimized to minimize the tool tip portion. There is also an effect that the maximum chip suction force is applied to the surroundings so that the chip disposal can be performed more reliably.
しかも、支持カバーの先端側部分に取り付けられた可
動カバーが進退可能であるから、切込み量を多少調整し
ても可動カバーと被削材の加工面との間の隙間を最小限
に設定でき、可動カバー先端部全周に亘って吸引力の低
下を最小に抑制できることになる。Moreover, since the movable cover attached to the tip side portion of the support cover can be moved back and forth, the gap between the movable cover and the machined surface of the work material can be set to the minimum even if the depth of cut is slightly adjusted. It is possible to suppress the reduction of the suction force to the minimum over the entire circumference of the tip of the movable cover.
第１図ないし第４図は本考案の一実施例を示すもので、
第１図は軸方向断面図、第２図は底面図、第３図は第１
図のＩ方向からの矢視図、第４図は第１図のII方向から
の矢視図、 第５図及び第６図は本考案の他の実施例を示す図で、第
５図は切欠き形状を示す図、第６図は被削材形状を示す
図、 第７図ないし第９図は従来の正面フライスを示すもの
で、第７図は軸方向断面図、第８図は底面図、第９図は
工具本体の先端外周部の拡大図である。 ３……チツプ（切刃チツプ）、3a……チツプのすくい
面、20……工具本体、24……カバー、31……切欠き（切
欠部）、32……切屑収納室、33……排出口、40……切屑
案内部材、Ｃ……被削材、C1……被切削部。1 to 4 show one embodiment of the present invention.
1 is an axial sectional view, FIG. 2 is a bottom view, and FIG. 3 is a first view.
FIG. 4 is a view from the direction I of FIG. 4, FIG. 4 is a view from the direction II of FIG. 1, FIGS. 5 and 6 are views showing another embodiment of the present invention, and FIG. Drawing showing notch shape, Drawing 6 showing work material shape, Drawing 7 thru / or Drawing 9 showing conventional face milling, Drawing 7 is an axial sectional view, Drawing 8 is a bottom view. FIG. 9 and FIG. 9 are enlarged views of the outer peripheral portion of the tip of the tool body. 3 ... Chip (cutting edge chip), 3a ... Chip rake face, 20 ... Tool body, 24 ... Cover, 31 ... Notch (notch part), 32 ... Chip storage chamber, 33 ... Discharge outlet, 40 ...... chip guide member, C ...... workpiece, C 1 ...... the cutting unit.
Claims (2)
けられ、この切刃チップのすくい面との間に隙間を形成
するように切屑案内部材が上記カッタ本体に配置されて
いると共に、上記カッタ本体の周面外方を覆いかつその
先端開口部が上記カッタ本体の切刃チップの先端よりわ
ずかに後退する位置にある略円筒状のカバーが配設され
て、このカバーの内周面と上記カッタ本体の外周面との
間に切屑収納室が形成され、且つ切屑収納室と吸引機と
を連結する連通部が上記カバーに設けられていて、切屑
を上記隙間から吸引排出させるようにした転削工具の切
屑排出機構において、 上記カバーの先端部には、切刃の被削材に対する切込み
量より若干深くて被削材の被切削部が通過可能な切欠部
が形成されていることを特徴とする転削工具の切屑排出
機構。1. A cutting blade tip is provided on an outer peripheral portion of a tip of a cutter body, and a chip guide member is arranged on the cutter body so as to form a gap between the cutting blade tip and a rake face. A substantially cylindrical cover is provided which covers the outside of the peripheral surface of the cutter body and whose tip opening is slightly retracted from the tip of the cutting blade tip of the cutter body. A chip storage chamber is formed between the chip storage chamber and the outer peripheral surface of the cutter body, and a communication portion that connects the chip storage chamber and the suction device is provided in the cover so that the chips are sucked and discharged from the gap. In the chip discharging mechanism of the rolling tool described above, a cutout portion that is slightly deeper than the cutting amount of the cutting blade with respect to the work material and through which the work portion of the work material can pass is formed at the tip end portion of the cover. Chips of rolling tools characterized by Ejection mechanism.
取り付けられている上記カッタ本体の軸線方向に進退可
能な可動カバーとからなり、この可動カバーの先端部に
上記切欠部が形成されていることを特徴とする請求項１
に記載の転削工具の切屑排出機構。2. The cover comprises a support cover and a movable cover attached to the tip side of the cutter cover and movable back and forth in the axial direction of the cutter body, and the cutout is formed at the tip end of the movable cover. Claim 1 characterized in that
The chip discharging mechanism of the rolling tool described in.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1990032018U JPH081797Y2 (en) | 1990-03-28 | 1990-03-28 | Chip discharging mechanism for rolling tools |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1990032018U JPH081797Y2 (en) | 1990-03-28 | 1990-03-28 | Chip discharging mechanism for rolling tools |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH03130343U JPH03130343U (en) | 1991-12-27 |
| JPH081797Y2 true JPH081797Y2 (en) | 1996-01-24 |
Family
ID=31534846
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1990032018U Expired - Lifetime JPH081797Y2 (en) | 1990-03-28 | 1990-03-28 | Chip discharging mechanism for rolling tools |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH081797Y2 (en) |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS48100495U (en) * | 1972-02-29 | 1973-11-27 | ||
| JP2535964B2 (en) * | 1987-10-19 | 1996-09-18 | 三菱マテリアル株式会社 | Chip removal mechanism for rolling tools |
-
1990
- 1990-03-28 JP JP1990032018U patent/JPH081797Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH03130343U (en) | 1991-12-27 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EXPY | Cancellation because of completion of term |