JP2012200860A - Double-spindle machine tool, and load movement/unload movement - Google Patents

Double-spindle machine tool, and load movement/unload movement Download PDF

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JP2012200860A
JP2012200860A JP2012059902A JP2012059902A JP2012200860A JP 2012200860 A JP2012200860 A JP 2012200860A JP 2012059902 A JP2012059902 A JP 2012059902A JP 2012059902 A JP2012059902 A JP 2012059902A JP 2012200860 A JP2012200860 A JP 2012200860A
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cutting
workpiece
machine tool
workpiece spindles
workpieces
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JP5892819B2 (en
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Martin Krieg
マルティーン・クリーク
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EMAG Holding GmbH
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23C—MILLING
    • B23C1/00—Milling machines not designed for particular work or special operations
    • B23C1/08—Milling machines not designed for particular work or special operations with a plurality of vertical working-spindles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q39/00—Metal-working machines incorporating a plurality of sub-assemblies, each capable of performing a metal-working operation
    • B23Q39/02—Metal-working machines incorporating a plurality of sub-assemblies, each capable of performing a metal-working operation the sub-assemblies being capable of being brought to act at a single operating station
    • B23Q39/021—Metal-working machines incorporating a plurality of sub-assemblies, each capable of performing a metal-working operation the sub-assemblies being capable of being brought to act at a single operating station with a plurality of toolheads per workholder, whereby the toolhead is a main spindle, a multispindle, a revolver or the like
    • B23Q39/022—Metal-working machines incorporating a plurality of sub-assemblies, each capable of performing a metal-working operation the sub-assemblies being capable of being brought to act at a single operating station with a plurality of toolheads per workholder, whereby the toolhead is a main spindle, a multispindle, a revolver or the like with same working direction of toolheads on same workholder
    • B23Q39/024—Metal-working machines incorporating a plurality of sub-assemblies, each capable of performing a metal-working operation the sub-assemblies being capable of being brought to act at a single operating station with a plurality of toolheads per workholder, whereby the toolhead is a main spindle, a multispindle, a revolver or the like with same working direction of toolheads on same workholder consecutive working of toolheads
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q11/00—Accessories fitted to machine tools for keeping tools or parts of the machine in good working condition or for cooling work; Safety devices specially combined with or arranged in, or specially adapted for use in connection with, machine tools
    • B23Q11/08—Protective coverings for parts of machine tools; Splash guards
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q3/00—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine
    • B23Q3/155—Arrangements for automatic insertion or removal of tools, e.g. combined with manual handling
    • B23Q3/157—Arrangements for automatic insertion or removal of tools, e.g. combined with manual handling of rotary tools
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q5/00—Driving or feeding mechanisms; Control arrangements therefor
    • B23Q5/02—Driving main working members
    • B23Q5/04—Driving main working members rotary shafts, e.g. working-spindles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q7/00—Arrangements for handling work specially combined with or arranged in, or specially adapted for use in connection with, machine tools, e.g. for conveying, loading, positioning, discharging, sorting
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q39/00—Metal-working machines incorporating a plurality of sub-assemblies, each capable of performing a metal-working operation
    • B23Q2039/008—Machines of the lathe type

Abstract

PROBLEM TO BE SOLVED: To simplify a double-spindle lathe to provide a compact structure, and also improve a chip spattering prevention device for the chips produced in a working space.SOLUTION: This machine tool includes a machine frame including: two workpiece spindles 8, 8'; a cutting tool holder 12 with a plurality of cutting tools 13; a transfer device 18 for a plurality of workpieces 10; and a chip scattering prevention device 20 with two inclined plates 25, 25'. The cutting tool holder 12 is disposed movably along the machine frame. The plurality of workpieces 10 can be cut alternately by the plurality of cutting tools 13 in the two workpiece spindles 8, 8'. Therefore, the workpieces 10 are exchangeable in one of the workpiece spindles 8, 8' on a case-by-case basis. Each of the two workpiece spindles 8, 8' can be moved to load positions 19, 19' from working positions 17, 17' where the workpieces 10 are allowed to be cut. Since the workpiece spindles 8, 8' are loaded and unloaded, the inclined plates 25, 25' can be moved from the areas between the working positions 17, 17' and the load positions 19, 19', to standby positions 26, 26'.

Description

本発明は、請求項１の上位概念に記載の回転駆動される加工品を切削加工するためのダブルスピンドル工作機械に関する。   The present invention relates to a double spindle machine tool for cutting a rotationally driven workpiece according to the superordinate concept of claim 1.

振り子原理にしたがって稼働する工作機械の場合、２つの加工品が、両スピンドル内で交互に切削加工される。一方の加工品が、当該一方のスピンドル内で切削加工される一方で、他方の加工品がロードされ得る。空き時間が、切削加工時間以上である場合、当該振り子原理は、短い切削加工時間で特に有益である。当該空き時間を低減するため、ヨーロッパ特許第１７１１３０９号明細書では、４つの数値制御軸を有する２つの加工品スピンドル及び工作機械の２つのリボルバーが設けられている。当該ロードは、２つのロード・アンロード装置によって実施される。これらのロード・アンロード装置は、作業空間の両側に配置されている。   In the case of a machine tool operating according to the pendulum principle, two workpieces are cut alternately in both spindles. One workpiece can be cut in the one spindle while the other workpiece can be loaded. The pendulum principle is particularly beneficial with short cutting times when the idle time is greater than or equal to the cutting time. In order to reduce the idle time, EP 1711309 provides two workpiece spindles with four numerical control axes and two revolvers for the machine tool. The loading is performed by two load / unload devices. These load / unload devices are arranged on both sides of the work space.

ヨーロッパ特許第１７１１３０９号明細書European Patent No. 1711309

本発明の課題は、ダブルスピンドル旋盤を簡素化すること、コンパクトな構造を提供すること及び作業空間からの切削屑の発生に対する切削屑飛散防止装置を改良することにある。   An object of the present invention is to simplify a double spindle lathe, to provide a compact structure, and to improve a cutting dust scattering prevention device against generation of cutting waste from a work space.

この課題は、請求項１に記載の旋盤によって解決される。好適な構成は、従属請求項に記載されている。   This problem is solved by the lathe according to claim 1. Preferred configurations are described in the dependent claims.

振り子原理による旋盤の場合は、切削屑が当該両スピンドルで交互に発生するので、当該両スピンドルを、交互にロード又はアンロードする必要もある。特に、コンパクトな工作機械の場合は、非常に狭い空間しか、切削屑飛散防止装置に対して確保され得ない。   In the case of a lathe based on the pendulum principle, since cutting waste is alternately generated on both spindles, it is necessary to load or unload both spindles alternately. In particular, in the case of a compact machine tool, only a very narrow space can be secured for the cutting dust scattering prevention device.

本発明の好適な側面によれば、入れ子式に伸縮移動可能な１つの切削屑飛散防止装置が、両加工品スピンドルに割り当てられている。当該切削屑飛散防止装置は選択的に、加工品スピンドルを１つずつ遮蔽するか又は必要に応じて両加工品スピンドルを同時にも遮蔽する。   According to a preferred aspect of the present invention, one swarf scattering prevention device which is telescopically movable in a telescopic manner is assigned to both workpiece spindles. The cutting dust scattering prevention device selectively shields the workpiece spindles one by one or simultaneously shields both workpiece spindles as necessary.

以下に、本発明を１つの実施の形態に基づいて詳しく説明する。   Hereinafter, the present invention will be described in detail based on one embodiment.

切削加工側から見たダブルスピンドル旋盤を示す。A double spindle lathe as seen from the cutting side is shown. 加工品スピンドル８′のロード時の図１による旋盤を示す。FIG. 2 shows the lathe according to FIG. 1 when the workpiece spindle 8 ′ is loaded. 切削加工側の交代後の図１による旋盤を示す。Fig. 2 shows the lathe according to Fig. 1 after the change on the cutting side. 旋盤の側面を示す。Shows the side of the lathe.

図１は、ダブルスピンドル旋盤を概略的に示す。当該機械フレームが、垂直の側壁２，２′と同様に垂直の前壁３とを有するスピンドル支持台１として構成されている。ガイドシュー５上のスピンドルキャリッジ４，４′が、側壁２，２′に沿ったガイド６，６′にわたって垂直（Ｚ軸）方向に移動可能である。当該駆動は、電動機７，７′と図示されなかったボールねじ軸とによって実施される。スピンドルキャリッジ４，４′はそれぞれ、加工品スピンドル８，８′を支持する。加工品１０を受け取るためのクランプ手段９，９′が、当該加工品スピンドル８，８′の下側に配置されている。前壁３の上方の部分内では、切削工具１３用の切削工具ホルダ１２を有する搬送キャリッジ１１が、ガイドレール１４上で水平（Ｘ軸）方向に移動可能である。搬送キャリッジ１１は、電動機１５によってボールねじ軸１６を介して駆動される。加工品スピンドル８は、加工品１０と一緒に作業位置１７に存在する。切削工具１３が、加工品１０に当たる。搬送装置１８が、未加工の加工品１０をロード位置１９，１９′に向けて搬送し、加工した加工品を再び搬出する。好ましくは、当該ロード位置１９，１９′は、作業位置１７，１７′のすぐ下にある。その結果、当該両加工品スピンドル８，８′が、１回の移動だけによってガイド６，６′に沿って垂直方向にロード及びアンロードされ得る。切削屑飛散防止装置２０が、漏斗状の形を有し且つレール２２，２３上で移動可能に前壁３に沿って配置されている。作業位置１７，１７′内で発生する切削屑が、傾斜板２５，２５′によって切削屑収集箱２１内に送られる。その結果、搬送装置１８が、落下してくる切削屑及び冷却材に対して遮蔽されている。特に好ましくは、切削屑飛散防止装置２０は、水平方向に入れ子式に伸縮移動可能である。このため、両傾斜板２５，２５′が、独立した往復動油圧シリンダ２４によって必要に応じて別々に移動され得る。図１による構成では、当該両傾斜板２５，２５′が、作業位置１７，１７′の下方に配置されている。加工品が、作業位置１７で切削加工される一方で、例えば締付チャック９′が、作業位置１７′で水洗い又は吹きつけ洗いによって洗浄され得る。切削屑飛散防止装置２０が、切削工具ホルダ１２を下から包囲するように、この切削屑飛散防止装置２０の上側が、当該作業位置１７，１７′に達している。   FIG. 1 schematically shows a double spindle lathe. The machine frame is configured as a spindle support 1 having a vertical front wall 3 as well as vertical side walls 2, 2 ′. A spindle carriage 4, 4 'on the guide shoe 5 is movable in the vertical (Z-axis) direction over the guides 6, 6' along the side walls 2, 2 '. The driving is performed by the electric motors 7 and 7 'and a ball screw shaft (not shown). The spindle carriages 4, 4 'support the workpiece spindles 8, 8', respectively. Clamping means 9, 9 'for receiving the workpiece 10 are arranged below the workpiece spindle 8, 8'. In the upper part of the front wall 3, the transport carriage 11 having the cutting tool holder 12 for the cutting tool 13 is movable on the guide rail 14 in the horizontal (X-axis) direction. The transport carriage 11 is driven by a motor 15 via a ball screw shaft 16. The workpiece spindle 8 is in the working position 17 together with the workpiece 10. The cutting tool 13 hits the workpiece 10. The conveying device 18 conveys the unprocessed workpiece 10 toward the load positions 19 and 19 ', and unloads the processed workpiece again. Preferably, the load position 19, 19 'is immediately below the working position 17, 17'. As a result, both workpiece spindles 8, 8 'can be loaded and unloaded vertically along the guides 6, 6' by only one movement. A cutting dust scattering prevention device 20 has a funnel shape and is disposed along the front wall 3 so as to be movable on the rails 22 and 23. Cutting waste generated in the work positions 17 and 17 'is sent into the cutting waste collection box 21 by the inclined plates 25 and 25'. As a result, the conveying device 18 is shielded against falling cutting waste and coolant. Particularly preferably, the cutting dust scattering prevention device 20 is telescopically movable in a nested manner. For this reason, both inclined plates 25 and 25 ′ can be moved separately as required by the independent reciprocating hydraulic cylinder 24. In the configuration according to FIG. 1, both the inclined plates 25, 25 ′ are arranged below the working positions 17, 17 ′. While the workpiece is cut at the working position 17, for example, the clamping chuck 9 'can be cleaned by washing or spraying at the working position 17'. The upper side of the cutting dust scattering prevention device 20 reaches the working positions 17 and 17 'so that the cutting dust scattering prevention device 20 surrounds the cutting tool holder 12 from below.

図２は、加工品スピンドル８′のロード時の図１による旋盤を示す。傾斜板２５′が、往復動油圧シリンダ２４によって待機位置２６′に移動し、加工品スピンドル８′が、ガイド６′に沿って未加工の加工品１０を受け取るためにロード位置１９′に移動された。図３は、切削加工側の交代後の旋盤を示す。加工品スピンドル８′が、作業位置１７′に再び存在する。当該作業位置１７′で新しい加工品１０を切削加工するため、切削工具ホルダ１２が、ガイドレール１４に沿った移動によって工作機械の左側から右側に移動された。加工品スピンドル８をロードするため、傾斜板２５が、待機位置２６で待機されている。   FIG. 2 shows the lathe according to FIG. 1 when the workpiece spindle 8 'is loaded. The inclined plate 25 ′ is moved to the standby position 26 ′ by the reciprocating hydraulic cylinder 24, and the workpiece spindle 8 ′ is moved along the guide 6 ′ to the load position 19 ′ to receive the unprocessed workpiece 10. It was. FIG. 3 shows the lathe after replacement on the cutting side. The workpiece spindle 8 'is again in the working position 17'. In order to cut the new workpiece 10 at the working position 17 ′, the cutting tool holder 12 was moved from the left side to the right side of the machine tool by moving along the guide rail 14. In order to load the workpiece spindle 8, the inclined plate 25 is on standby at the standby position 26.

図４は、旋盤の側面を示す。この場合、スピンドルキャリッジ４が示されている。このスピンドルキャリッジ４は、側壁２に沿ってガイド６上で移動可能である。加工品スピンドル８内の加工品１０が、この加工品スピンドル８の下方に懸架されている切削工具ホルダ１２の切削工具によって切削加工される。切削屑飛散防止装置２０が、ガイドシューと一緒にレール２２，２３に沿って移動されている。   FIG. 4 shows the side of the lathe. In this case, the spindle carriage 4 is shown. The spindle carriage 4 is movable on the guide 6 along the side wall 2. The workpiece 10 in the workpiece spindle 8 is cut by the cutting tool of the cutting tool holder 12 suspended below the workpiece spindle 8. The cutting dust scattering prevention device 20 is moved along the rails 22 and 23 together with the guide shoes.

１ スピンドル支持台
２ ２′側壁
３ 前壁
４ ４′スピンドルキャリッジ
５ ガイドシュー
６ ６′ガイド
７ ７′電動機
８ ８′加工品スピンドル
９ ９′クランプ手段、締付チャック
１０ 加工品
１１ 搬送キャリッジ
１２ 切削工具ホルダ
１３ 切削工具
１４ ガイドレール
１５ 電動機
１６ ボールねじ軸
１７ １７′作業位置
１８ 搬送装置
１９ １９′ロード位置
２０ 切削屑飛散防止装置
２１ 切削屑収集箱
２２ レール
２３ レール
２４ 往復動油圧シリンダ
２５ ２５′傾斜板
２６ ２６′待機位置 DESCRIPTION OF SYMBOLS 1 Spindle support stand 2 2 'side wall 3 Front wall 4 4' Spindle carriage 5 Guide shoe 6 6 'Guide 7 7' Electric motor 8 8 'Work piece spindle 9 9' Clamp means, clamping chuck 10 Work piece 11 Transport carriage 12 Cutting Tool holder 13 Cutting tool 14 Guide rail 15 Electric motor 16 Ball screw shaft 17 17 ′ Working position 18 Conveying device 19 19 ′ Loading position 20 Cutting waste scattering prevention device 21 Cutting waste collection box 22 Rail 23 Rail 24 Reciprocating hydraulic cylinder 25 25 ′ Inclined plate 26 26 'standby position

Claims (6)

２つの加工品スピンドル（８，８′）と、複数の切削工具（１３）付の１つの切削工具ホルダ（１２）と、複数の加工品（１０）用の１つの搬送装置（１８）と、２つの傾斜板（２５，２５′）付の１つの切削屑飛散防止装置（２０）とを有する機械フレームを備えた工作機械であって、前記切削工具ホルダ（１２）が、前記機械フレームに沿って移動可能に配置されていて、前記複数の加工品（１０）は、前記２つの加工品スピンドル（８，８′）内で前記複数の切削工具（１３）によって交互に切削加工可能である結果、その都度の片方の前記加工品スピンドル（８，８′）がロードされてアンロードされ得、前記２つの加工品スピンドル（８，８′）のうちの各々は、前記加工品（１０）が切削加工可能である作業位置（１７，１７′）からロード位置（１９，１９′）に移動可能である当該工作機械において、
前記加工品スピンドル（８，８′）をロードしてアンロードするため、前記傾斜板（２５，２５′）が、前記作業位置（１７，１７′）と前記ロード位置（１９，１９′）との間の領域から待機位置（２６，２６′）に移動可能であることを特徴とする工作機械。 Two workpiece spindles (8, 8 '), one cutting tool holder (12) with a plurality of cutting tools (13), one conveying device (18) for a plurality of workpieces (10), A machine tool having a machine frame having one cutting dust scattering prevention device (20) with two inclined plates (25, 25 '), wherein the cutting tool holder (12) extends along the machine frame. As a result, the plurality of workpieces (10) can be alternately cut by the plurality of cutting tools (13) in the two workpiece spindles (8, 8 '). Each of the workpiece spindles (8, 8 ') can be loaded and unloaded each time, and each of the two workpiece spindles (8, 8') has the workpiece (10) Working position where cutting is possible (17, 17 ' In the machine tool it is movable in the loading position (19, 19 ') from
In order to load and unload the workpiece spindle (8, 8 '), the inclined plate (25, 25') is connected to the working position (17, 17 ') and the loading position (19, 19'). Machine tool characterized in that it can be moved from the area between to the standby position (26, 26 '). 前記加工品（１０）は、前記切削加工ホルダ（１２）をガイドレール（１４）に沿って移動させることによって前記加工品スピンドル（８，８′）内で切削加工可能であることを特徴とする請求項１に記載の工作機械。   The workpiece (10) can be cut in the workpiece spindle (8, 8 ') by moving the cutting holder (12) along a guide rail (14). The machine tool according to claim 1. 前記機械フレームの前記加工品スピンドル（８，８′）は、垂直方向にガイド（６，６′）に沿って前記作業位置（１７，１７′）から前記ロード位置（１９，１９′）に移動可能であることを特徴とする請求項１又は２に記載の工作機械。   The workpiece spindle (8, 8 ') of the machine frame moves from the working position (17, 17') to the load position (19, 19 ') along the guide (6, 6') in the vertical direction. The machine tool according to claim 1, wherein the machine tool is possible. 前記機械フレームの前記傾斜板（２５，２５′）は、水平方向に可動にレール（２２，２３）に対して敷設されていることを特徴とする請求項１〜３のいずれか１項に記載の工作機械。   The inclined plate (25, 25 ') of the machine frame is laid on the rail (22, 23) so as to be movable in the horizontal direction. Machine tools. 前記切削屑飛散防止装置（２０）は、入れ子式に伸縮移動可能であること、及び、前記２つの傾斜板（２５，２５′）は、前記作業位置（１７，１７′）と前記ロード位置（１９，１９′）との間の領域内に同時に移動可能であることを特徴とする請求項１〜４のいずれか１項に記載の工作機械。   The cutting dust scattering prevention device (20) is telescopically movable, and the two inclined plates (25, 25 ') are connected to the working position (17, 17') and the load position ( 19. A machine tool according to any one of claims 1 to 4, characterized in that it can be moved simultaneously in a region between the two. 前記切削工具ホルダ（１２）は、上から前記切削屑飛散防止装置（２０）内に突出していることを特徴とする請求項１〜５のいずれか１項に記載の工作機械。   The machine tool according to any one of claims 1 to 5, wherein the cutting tool holder (12) protrudes from above into the cutting dust scattering prevention device (20).
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