JP7251766B2 - Chip scattering prevention structure for machine tools - Google Patents

Chip scattering prevention structure for machine tools Download PDF

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JP7251766B2
JP7251766B2 JP2019010079A JP2019010079A JP7251766B2 JP 7251766 B2 JP7251766 B2 JP 7251766B2 JP 2019010079 A JP2019010079 A JP 2019010079A JP 2019010079 A JP2019010079 A JP 2019010079A JP 7251766 B2 JP7251766 B2 JP 7251766B2
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cover
opening
prevention structure
tool
scattering prevention
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JP2020116682A (en
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利卓 島津
和哉 村田
裕 水島
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Nakamura Tome Precision Industry Co Ltd
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Nakamura Tome Precision Industry Co Ltd
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本発明は、工作機械において発生する切粉の飛散防止構造に関する。 TECHNICAL FIELD The present invention relates to a structure for preventing scattering of chips generated in a machine tool.

旋盤や複合加工機等の工作機械においては、主軸にワークをチャック保持させ、各種工具を用いて機械加工が行われている。
この際に切粉が発生するので、一般的には工作機械の加工領域全体がカバーで覆われていることが多い。
しかし、これでは加工領域全体に切粉が飛散して、その後の切粉の回収が大変である。
特に、セラミックス材料等の機械加工の場合には切粉が小さく、特にドライの状態で切削や研削する場合等にあっては、工具等の回転部や刃物台のスライド部等に侵入する恐れがある。 2. Description of the Related Art In machine tools such as lathes and multitasking machines, a workpiece is chuck-held on a spindle and machining is performed using various tools.
Since chips are generated at this time, generally the entire machining area of the machine tool is often covered with a cover.
However, this causes chips to scatter over the entire machining area, making it difficult to collect the chips afterwards.
In particular, when machining ceramic materials, etc., chips are small, and especially when cutting or grinding in a dry state, there is a risk of entering rotating parts such as tools and sliding parts of tool posts. be.

特許文献１には、ワークの上方からエアーを噴射し、下側に整流用の傾斜部及び側壁を設ける技術を開示するが、微粉状態の切粉を対象にするとエアーの噴射にて却って飛散してしまう。
特許文献２には、チャックの外周面に回転翼体を固設するとともに、周囲をチャックカバーで覆い、チャックの後方に集塵ダクトを介して集塵機と連結した構造を開示する。
しかし、これでは主軸側に粉塵を巻き込む恐れがある。 Patent Document 1 discloses a technique in which air is jetted from above a workpiece and a sloping portion and side walls for rectification are provided on the lower side. end up
Patent Document 2 discloses a structure in which a rotary blade is fixed to the outer peripheral surface of a chuck, the periphery of which is covered with a chuck cover, and a dust collector is connected to the rear of the chuck via a dust collection duct.
However, this may cause dust to be caught on the spindle side.

特開平１０－１３８０８７号公報JP-A-10-138087 特開２０００－７１１０５号公報JP-A-2000-71105

本発明は、ワークを機械加工する際に発生する切粉を効果的に排出でき、周囲への飛散を防止した工作機械の切粉飛散防止構造の提供を目的とする。 SUMMARY OF THE INVENTION It is an object of the present invention to provide a machine tool shavings prevention structure capable of effectively discharging shavings generated during machining of a workpiece and preventing the shavings from scattering to the surroundings.

本発明に係る工作機械の切粉飛散防止構造は、主軸に装着されたチャック部の外周部を覆う第１カバーと、前記第１カバーに取り付けられた第２カバーとを備え、前記第１カバー又は／及び第２カバーに工具の挿入口と切粉の吸引排出口とを有することを特徴とする。 A machine tool chip scattering prevention structure according to the present invention includes a first cover that covers an outer peripheral portion of a chuck mounted on a spindle, and a second cover that is attached to the first cover. Or/and the second cover has a tool insertion opening and a chip suction/discharge opening.

ここで工作機械は、回転制御された主軸にチャック部が装着され、このチャック部にワークを保持し、刃物台に装着された工具にて機械加工するものであれば、複合加工機，旋盤，研削盤等、特に限定はない。 Machine tools include multitasking machines, lathes, lathes, lathes, lathes, lathes, lathes, lathes, lathes, lathes, etc. There is no particular limitation, such as a grinding machine.

本発明において、第２カバーは第１カバーに対して取り付け位置の調整が可能であり、前記第２カバーに切粉の吸引排出口を有するのが好ましく、さらには、第２カバーはエアーの吸い込み口を有し、第２カバーに設けたエアーの吸い込み口は開口部から内側に折り返した折返片を有しているのが好ましい。
カバー内にエアーが取り込まれ、その流れによりこの吸い込み口となる開口部から切粉が飛散するのを防止し、折返片によりこの開口部からの飛散を防ぐ。 In the present invention, it is preferable that the second cover is adjustable in the mounting position with respect to the first cover, has a chip suction/discharge port in the second cover, and furthermore, the second cover sucks air. It is preferable that the air suction port provided in the second cover has a folded piece folded back inward from the opening.
Air is taken into the cover, and the air flow prevents chips from scattering from the opening serving as the suction port, and the folded piece prevents scattering from the opening.

本発明に係る切粉飛散防止構造にあっては、チャック部の外周部をカバーで覆い、カバーに設けた挿入口から工具の先端側を挿入し、そこで発生した切粉をそのまま吸引排出口から集塵機等により回収することができる。
これにより、微細な切粉であっても効率的に飛散が防止される。 In the chip scattering prevention structure according to the present invention, the outer periphery of the chuck is covered with a cover, the tip side of the tool is inserted through the insertion opening provided in the cover, and the generated chips are directly sucked and discharged from the opening. It can be collected by a dust collector or the like.
As a result, even fine chips are efficiently prevented from scattering.

本発明に係る切粉飛散防止構造の例を示す。1 shows an example of a chip scattering prevention structure according to the present invention. タレットに装着した工具で加工する例を示す。An example of machining with a tool attached to a turret is shown. （ａ）はバイト（旋削工具）を用いた例、（ｂ）はドリルを用いた例を示す。(a) shows an example using a cutting tool (turning tool), and (b) shows an example using a drill. 第１カバーの構造例を示す。4 shows a structural example of the first cover. 第２カバーの構造例を示す。4 shows a structural example of a second cover.

本発明に係る切粉飛散防止構造を以下図に基づいて説明する。
図１に第１カバー１１と第２カバー１２の取付構造例を示し、図２に刃物台としてタレット３０に第３カバー４０を取り付けた状態を示す。
図４に第１カバー１１の構造、図５に第２カバー１２の構造例を示す。 The chip scattering prevention structure according to the present invention will be described below with reference to the drawings.
FIG. 1 shows an example of mounting structure of the first cover 11 and the second cover 12, and FIG. 2 shows a state where a third cover 40 is mounted on a turret 30 as a tool post.
FIG. 4 shows the structure of the first cover 11, and FIG. 5 shows a structural example of the second cover 12. As shown in FIG.

図１及び図３に示すように、主軸２０の先端側及び主軸２０に取り付けられたチャック部２１の周囲を覆うように、第１カバー１１が主軸２０側に取り付けられている。
第１カバー１１は、図４に示すように円錐台状のベース部１１ａから突設し、チャック部に装着したワークＷの周囲を覆う円筒状の覆囲部１１ｂを有し、主軸側の取付部１１ｃと長孔からなる第２カバーの取付孔１１ｄを有する。
また、覆囲部１１ｂの一部を切り欠いて、工具の挿入口１３とダクトの配置部１１ｅを設けてある。 As shown in FIGS. 1 and 3 , the first cover 11 is attached to the spindle 20 side so as to cover the distal end side of the spindle 20 and the periphery of the chuck portion 21 attached to the spindle 20 .
As shown in FIG. 4, the first cover 11 protrudes from a truncated cone-shaped base portion 11a and has a cylindrical surrounding portion 11b that covers the workpiece W mounted on the chuck portion. It has a portion 11c and a mounting hole 11d for the second cover which is an elongated hole.
A part of the surrounding portion 11b is cut away to provide a tool insertion opening 13 and a duct arrangement portion 11e.

第２カバー１２は、図５に示すように円筒形状になっていて、第１カバー１１の取付孔１１ｄにビス等を介して取り付けるためのナット部１２ｃを有する。
これにより、ナット部１２ｃの位置を長孔の取付孔１１ｄに沿ってスライド可能になり、第２カバー１２を第１カバー１１の先端側から内側に挿入し、第１カバー１１からの突出量が調整できるようになっている。
第２カバーは、先端部側に開口部１２ａを有し、この開口部１２ａの中心側に向けて折り返した折返片１２ｂを有する。 The second cover 12 has a cylindrical shape as shown in FIG. 5, and has a nut portion 12c for attachment to the attachment hole 11d of the first cover 11 via a screw or the like.
As a result, the position of the nut portion 12c can be slid along the elongated attachment hole 11d, and the second cover 12 is inserted inside the first cover 11 from the tip end side, so that the amount of protrusion from the first cover 11 is It is adjustable.
The second cover has an opening 12a on the tip side and a folded piece 12b folded toward the center of the opening 12a.

図１は図２において、タレット３０を後退させた状態を示し、第２カバー１２の第１カバー１１に対する取り付け位置をワークの加工領域を覆うように調整し、ビス等の固定具１５にて固定する。
第２カバー１２の先端側は、開口部１２ａとなっていて、外部からのエアーの吸い込み口として作用する。
第２カバー１２の下側の側部に吸引排出口１４を設けて、この部分と集塵機１とをダクト２にてつなぐ。 FIG. 1 shows a state in which the turret 30 is retracted in FIG. do.
The tip side of the second cover 12 is an opening 12a, which acts as a suction port for air from the outside.
A suction discharge port 14 is provided in the lower side portion of the second cover 12 , and this portion and the dust collector 1 are connected by a duct 2 .

次に、集塵機１を稼働させ、図２に示すようにタレット３０等の刃物台を前進させ、挿入口１３から工具を挿入する。
その状態を図３（ａ），（ｂ）に示す。
図３（ａ）は、工具としてバイト３１を用いた例であり、バイト３１側をタレット３０に取り付けた第３カバー４０にて覆う構造になっている。
切粉は、吸引排出口１４から吸い込まれるが、その際にエアーは開口部１２ａから内側に向けて吸引される。
また、開口部１２ａから飛散しようとする切粉は、折返片１２ｂに当たり、外へ飛散するのを防ぐ。
図３（ｂ）は、工具としてドリル３２、あるいはエンドミル等を用いた例であり、タレット側に第３カバー４１を取り付けてある。 Next, the dust collector 1 is operated, the tool post such as the turret 30 is advanced as shown in FIG.
This state is shown in FIGS. 3(a) and 3(b).
FIG. 3A shows an example using a tool 31 as a tool, and has a structure in which the tool 31 side is covered with a third cover 40 attached to the turret 30 .
Chips are sucked through the suction/discharge port 14, while air is sucked inward from the opening 12a.
In addition, chips that are about to scatter from the opening 12a hit the folded piece 12b and are prevented from scattering to the outside.
FIG. 3(b) shows an example using a drill 32 or an end mill as a tool, and a third cover 41 is attached to the turret side.

１ 集塵機
２ ダクト
１１ 第１カバー
１２ 第２カバー
１２ａ 開口部
１２ｂ 折返片
１３ 挿入口
１４ 吸引排出口
２０ 主軸
２１ チャック部
３０ タレット
４０ 第３カバー 1 dust collector 2 duct 11 first cover 12 second cover 12a opening 12b folding piece 13 insertion port 14 suction discharge port 20 main shaft 21 chuck portion 30 turret 40 third cover

Claims (1)

主軸に装着されたチャック部及び前記チャック部に装着したワークの外周部を覆う円筒状の覆囲部を有する第１カバーと、前記第１カバーに突出量が調整可能に取り付けられた第２カバーとを備え、
前記第２カバーはエアーの吸い込み口となる先端部側に開口部を有する円筒形状であり、
前記第２カバーの開口部は前記開口部の中心側に向けて折り返した折返片を有し、
前記第１カバー及び第２カバーの側部に工具の挿入口を有し、
前記第２カバーの下側の側部に切粉の吸引排出口を有し、
前記吸引排出口にダクトを介して集塵機につないであることを特徴とする工作機械の切粉飛散防止構造。 A first cover having a cylindrical surrounding portion that covers a chuck portion attached to a spindle and an outer peripheral portion of a work piece attached to the chuck portion , and a second cover attached to the first cover so that the amount of protrusion is adjustable. and
The second cover has a cylindrical shape with an opening on the tip side serving as an air suction port,
The opening of the second cover has a folded piece folded toward the center of the opening,
Tool insertion openings are provided on the sides of the first cover and the second cover,
Having a suction and discharge port for chips on the lower side of the second cover,
A dust scattering prevention structure for a machine tool , wherein the suction/discharge port is connected to a dust collector through a duct .
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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001220212A (en) 2000-02-14 2001-08-14 Ngk Insulators Ltd Apparatus for treating dust occurring in glass material- cutting operation
JP2012086566A (en) 2010-10-18 2012-05-10 Bridgestone Bandag Llc Tire buffing apparatus with improved dust control
CN104551033A (en) 2014-11-27 2015-04-29 华瑞电器股份有限公司 Lathe with dust removal component

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4824466B1 (en) * 1970-02-02 1973-07-21
AT304223B (en) * 1971-08-13 1972-12-27 Ruttnigg Ing Johann Protective device on lathes
JPS5210153Y2 (en) * 1972-10-02 1977-03-04

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001220212A (en) 2000-02-14 2001-08-14 Ngk Insulators Ltd Apparatus for treating dust occurring in glass material- cutting operation
JP2012086566A (en) 2010-10-18 2012-05-10 Bridgestone Bandag Llc Tire buffing apparatus with improved dust control
CN104551033A (en) 2014-11-27 2015-04-29 华瑞电器股份有限公司 Lathe with dust removal component

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