JP2022152853A - Machine tool - Google Patents

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Publication number
JP2022152853A
JP2022152853A JP2021055784A JP2021055784A JP2022152853A JP 2022152853 A JP2022152853 A JP 2022152853A JP 2021055784 A JP2021055784 A JP 2021055784A JP 2021055784 A JP2021055784 A JP 2021055784A JP 2022152853 A JP2022152853 A JP 2022152853A
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Prior art keywords
plate portion
vertical plate
horizontal plate
machine tool
opening
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Inventor
稔 松浦
Minoru Matsuura
巌根 佐野
Iwane Sano
良太 鹿野
ryota Kano
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Brother Industries Ltd
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Brother Industries Ltd
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Priority to JP2021055784A priority Critical patent/JP2022152853A/en
Priority to CN202210139343.0A priority patent/CN115139149B/en
Publication of JP2022152853A publication Critical patent/JP2022152853A/en
Pending legal-status Critical Current

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    • 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
    • B23Q11/12—Arrangements for cooling or lubricating parts of the machine

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Auxiliary Devices For Machine Tools (AREA)

Abstract

To provide a machine tool which can prevent a coolant, which adheres to inner surfaces of a cover and an opening/closing door to be condensed, from flowing to the outside of the cover.SOLUTION: A machine tool includes: a cover which encloses a machine tool body and has a ceiling and a side wall; and an opening/closing door 51 which opens or closes an opening provided on the side wall. The machine tool includes: a first lateral plate part 535 which extends in a moving direction of the opening/closing door 51, is provided at an upper part of the opening/closing door 51, and prevents movement of a mist-like coolant; and a first vertical plate part 6 which extends in a vertical direction orthogonal to the moving direction and is provided on an end surface of the opening/closing door 51 as seen in the moving direction. One end at the moving direction side of the first lateral plate part 535 is disposed at the inner side of the opening/closing door 51 relative to the first vertical plate part 6.SELECTED DRAWING: Figure 10

Description

本発明は、工作機械に関する。 The present invention relates to machine tools.

工作機械は、ワーク加工時に発生する熱を冷却し、切削屑を洗い流すために、工具又はワークに冷却液を噴射する。工作機械は、冷却液及び切削屑の飛散防止のために、工作機械本体を囲むカバーを備えるが、カバーの内側面に切削屑が付着するおそれがある。工作機械は、カバーの内側面に付着した切削屑を除去するために、カバーの内側面にも冷却液を噴射する。 2. Description of the Related Art A machine tool injects a cooling liquid onto a tool or a workpiece in order to cool the heat generated during machining of the workpiece and wash away cutting debris. Machine tools are provided with a cover that encloses a machine tool body in order to prevent coolant and chips from scattering, but there is a risk that chips will adhere to the inner surface of the cover. The machine tool also injects coolant to the inner surface of the cover in order to remove cutting debris adhering to the inner surface of the cover.

特許文献１は、使用済みの冷却液を回収し、ろ過処理を行った後、再使用することによって、冷却液の補充の頻度を低減する工作機械を開示している。
特許文献２は、カバーの側壁の開閉扉と、カバーの外側に位置し、開閉扉の開閉に連動して、ワークのカバーの内側への搬入、及びカバーの外側への搬出を行うワーク交換装置とを備え、作業者がカバーの内側に侵入する必要をなくし、作業の安全性を高めた工作機械を開示している。 Patent Literature 1 discloses a machine tool that reduces the frequency of replenishment of the coolant by recovering the used coolant, filtering it, and then reusing it.
Patent Document 2 discloses an open/close door on a side wall of a cover, and a work changer positioned outside the cover, which is interlocked with the opening/closing of the open/close door to carry in a work to the inside of the cover and to carry out to the outside of the cover. , which eliminates the need for workers to enter the inside of the cover, thereby improving work safety.

特開２０１５－１８２１７６号公報JP 2015-182176 A 特開２０１５－２０５３８５号公報JP 2015-205385 A

工具又はワークを冷却する際、冷却液の一部が霧状になってカバー及び開閉扉の内側面に付着する。付着した霧状の冷却液は凝結して液状（液滴）になる。液状になった冷却液は、開閉扉の開閉に伴う振動及び衝撃等により、開閉扉と側壁の間からカバーの外側に流れ出すおそれがある。外側に流れた冷却液は床に落ちて床を汚す。また、冷却液が外側に流れると、再使用できる冷却液の量が減少するので、冷却液の補充の頻度は増え、作業効率が低下する。しかし、特許文献１，２の工作機械はこのような問題について考慮しておらず、解決できない。 When cooling the tool or workpiece, part of the cooling liquid becomes mist and adheres to the inner surfaces of the cover and the opening/closing door. The adhering misty cooling liquid condenses into a liquid state (droplets). The liquefied cooling liquid may flow out of the cover from between the opening/closing door and the side wall due to vibrations, impacts, and the like that accompany the opening/closing of the opening/closing door. The coolant that flows outward falls onto the floor and stains it. In addition, if the cooling liquid flows outward, the amount of the cooling liquid that can be reused decreases, so the frequency of replenishing the cooling liquid increases and the work efficiency decreases. However, the machine tools of Patent Literatures 1 and 2 do not consider such problems and cannot solve them.

本開示は、カバー及び開閉扉の内側面に付着して凝結した冷却液がカバーの外側に流れ出すことを防止できる工作機械を提供することを目的とする。 SUMMARY OF THE INVENTION An object of the present disclosure is to provide a machine tool that can prevent coolant that has adhered and condensed on the inner surfaces of a cover and an opening/closing door from flowing out of the cover.

本発明に係る工作機械は、工作機械本体を囲み、天井及び側壁を有するカバーと、前記側壁に設けた開口を開閉する扉とを備える工作機械であって、前記扉の移動方向に延び、前記扉の上部に設け、且つ霧状の冷却液の移動を妨げる第一横板部と、前記移動方向に直交する上下方向に延び、前記移動方向における前記扉の端面に設けてある第一縦板部とを備え、前記第一横板部の前記移動方向側一端は前記第一縦板部よりも前記扉の内側に配置してある。 A machine tool according to the present invention includes a cover surrounding a machine tool body and having a ceiling and side walls, and a door for opening and closing an opening provided in the side wall, the machine tool extending in a moving direction of the door and A first horizontal plate provided on the upper part of the door and preventing movement of the cooling liquid mist, and a first vertical plate extending in the vertical direction orthogonal to the moving direction and provided on the end surface of the door in the moving direction. and one end of the first horizontal plate portion on the moving direction side is arranged inside the door with respect to the first vertical plate portion.

本発明にあっては、前記第一横板部の前記移動方向側一端が前記第一縦板部よりも前記扉の内側に隔てて配置してある。よって、霧状から凝結した冷却液（液体）が前記第一横板部の上を流れる時、前記第一縦板部を超えて外側に流れ落ちることを防止できる。 In the present invention, the one end of the first horizontal plate portion on the moving direction side is arranged further inside the door than the first vertical plate portion. Therefore, when the coolant (liquid) that has condensed from the mist flows over the first horizontal plate portion, it is possible to prevent it from flowing down to the outside beyond the first vertical plate portion.

本発明に係る工作機械は、前記第一縦板部と平行に上下方向に延び、且つ前記第一縦板部から前記移動方向に間隙を隔てて設けてある第二縦板部を備え、前記第一横板部が前記第二縦板部と接続した。 A machine tool according to the present invention includes a second vertical plate portion extending vertically in parallel with the first vertical plate portion and provided with a gap in the moving direction from the first vertical plate portion, A first horizontal plate portion is connected to the second vertical plate portion.

本発明にあっては、前記第一縦板部と前記第二縦板部が平行に上下方向に延び、前記扉の移動方向にて前記第二縦板部と前記第一縦板部の間に間隙が介在しており、前記第二縦板部が前記第一横板部の一端と接触している。よって、霧状から凝結した冷却液が前記第一横板部の上を流れる時、前記第二縦板部と前記第一横板部の間から漏れず、前記間隙から下方に落ちる。従って、凝結した冷却液が前記第一縦板部を超えて外側に流れ落ちることを防止できる。 In the present invention, the first vertical plate portion and the second vertical plate portion extend parallel to each other in the vertical direction, and in the direction of movement of the door, there is a gap between the second vertical plate portion and the first vertical plate portion. and the second vertical plate portion is in contact with one end of the first horizontal plate portion. Therefore, when the coolant condensed from the mist flows over the first horizontal plate portion, it does not leak from between the second vertical plate portion and the first horizontal plate portion, but falls downward through the gap. Therefore, it is possible to prevent the condensed cooling liquid from flowing outside over the first vertical plate portion.

本発明に係る工作機械は、前記第一縦板部の上端の位置は前記第二縦板部の上端の位置よりも低い。 In the machine tool according to the present invention, the position of the upper end of the first vertical plate portion is lower than the position of the upper end of the second vertical plate portion.

本発明にあっては、前記第一縦板部の上端の縁の位置が前記第二縦板部の上端の縁の位置よりも低い。よって、前記扉の開閉時に、前記第一横板部よりも上側に設けてある部材の下面にぶら下がっている冷却液の水滴に前記第一縦板部の上端の縁が当たり、冷却液の水滴が前記第一縦板部を超えてカバーの外側に落ちることを未然に防止できる。 In the present invention, the position of the edge of the upper end of the first vertical plate portion is lower than the position of the edge of the upper end of the second vertical plate portion. Therefore, when the door is opened and closed, the edge of the upper end of the first vertical plate hits the water droplets of the cooling liquid hanging on the lower surface of the member provided above the first horizontal plate, and the water droplets of the cooling liquid can be prevented from exceeding the first vertical plate portion and falling to the outside of the cover.

本発明に係る工作機械は、前記第二縦板部の上端は前記第一横板部よりも上方に位置する。 In the machine tool according to the present invention, the upper end of the second vertical plate portion is located above the first horizontal plate portion.

本発明にあっては、前記第二縦板部の上端は前記第一横板部よりも上方に延びるので、前記第一横板部の上を流れる冷却液を前記第二縦板部の上端部がせき止め、前記第一縦板部を超えてカバーの外側に落ちることを未然に防止できる。 In the present invention, since the upper end of the second vertical plate portion extends above the first horizontal plate portion, the coolant flowing over the first horizontal plate portion is directed to the upper end of the second vertical plate portion. can be prevented from falling to the outside of the cover beyond the first vertical plate portion.

本発明に係る工作機械は、前記第二縦板部の上端と前記第一横板部の前記一端が接続する。 In the machine tool according to the present invention, the upper end of the second vertical plate portion and the one end of the first horizontal plate portion are connected.

本発明にあっては、前記第二縦板部の上端は前記第一横板部の一端と接し、前記第二縦板部の上端面は前記第一横板部の上面に連続する。よって、霧状から凝結した冷却液が前記第一横板部の上を流れる時、前記第二縦板部と前記第一横板部の間から漏れず、前記間隙から下方に落ちる。従って、凝結した冷却液が前記第一縦板部を超えて外側に流れ落ちることを防止できる。 In the present invention, the upper end of the second vertical plate portion is in contact with one end of the first horizontal plate portion, and the upper end surface of the second vertical plate portion is continuous with the upper surface of the first horizontal plate portion. Therefore, when the coolant condensed from the mist flows over the first horizontal plate portion, it does not leak from between the second vertical plate portion and the first horizontal plate portion, but falls downward through the gap. Therefore, it is possible to prevent the condensed cooling liquid from flowing outside over the first vertical plate portion.

本発明に係る工作機械は、前記第二縦板部の前記カバー内側の長辺側に取り付けてあり、前記扉を閉じた場合に前記側壁の内側面と前記扉との隙間を覆う部材を備える。 The machine tool according to the present invention includes a member attached to the long side inside the cover of the second vertical plate portion and covering a gap between the inner surface of the side wall and the door when the door is closed. .

本発明にあっては、前記第二縦板部の長辺に、前記カバーの内側へ延びた前記部材が、前記扉を閉じた場合に前記側壁の内側面と前記扉との隙間を覆うので、霧状の冷却液がカバーの外側に移動することを未然に防止できる。 In the present invention, the member extending inwardly of the cover on the long side of the second vertical plate covers the gap between the inner surface of the side wall and the door when the door is closed. , the coolant mist can be prevented from moving to the outside of the cover.

本発明に係る工作機械は、前記第一横板部よりも上方に設けてあり、前記第一縦板部の近傍まで延びる第二横板部を備え、前記第二横板部の端部は上側に湾曲してある。 The machine tool according to the present invention includes a second horizontal plate portion provided above the first horizontal plate portion and extending to the vicinity of the first vertical plate portion, and an end portion of the second horizontal plate portion is curved upwards.

本発明にあっては、前記第一横板部よりも上方に設けてある前記第二横板部の前記第一縦板部側の端部が上側に湾曲している。よって、前記第二横板部の前記端部の下面に霧状の冷却液が付着したとしても、凝結して液滴になった時は自重により下方、即ち、前記第一縦板部から遠ざかる方向へ流れる。従って、冷却液の水滴が前記第一縦板部を超えてカバーの外側に落ちることを未然に防止できる。 In the present invention, the end portion of the second horizontal plate portion provided above the first horizontal plate portion on the side of the first vertical plate portion is curved upward. Therefore, even if the misty cooling liquid adheres to the lower surface of the end portion of the second horizontal plate portion, when it condenses into droplets, it moves downward, that is, away from the first vertical plate portion due to its own weight. flow in the direction Therefore, it is possible to prevent the water droplets of the cooling liquid from exceeding the first vertical plate portion and falling to the outside of the cover.

本発明に係る工作機械は、前記第二横板部よりも上方に設けてあり、前記第一縦板部の近傍まで延び、前記第一横板部と平行である第三横板部を備える。 The machine tool according to the present invention includes a third horizontal plate portion that is provided above the second horizontal plate portion, extends to the vicinity of the first vertical plate portion, and is parallel to the first horizontal plate portion. .

本発明にあっては、前記第一横板部よりも上側に前記第二横板部が配置してあり、前記第二横板部よりも上側に前記第三横板部が配置しているので、霧状の冷却液がカバーの外側に移動することを抑制できる。 In the present invention, the second horizontal plate portion is arranged above the first horizontal plate portion, and the third horizontal plate portion is arranged above the second horizontal plate portion. Therefore, it is possible to suppress the mist-like cooling liquid from moving to the outside of the cover.

本発明に係る工作機械は、前記第一横板部及び前記第三横板部は前記扉に設けてあり、前記第二横板部は前記側壁の内側面に設けてあり、前記第一横板部及び前記第三横板部の間に介在する。 In the machine tool according to the present invention, the first horizontal plate portion and the third horizontal plate portion are provided on the door, the second horizontal plate portion is provided on the inner surface of the side wall, and the first horizontal plate portion is provided on the inner surface of the side wall. It is interposed between the plate portion and the third horizontal plate portion.

本発明にあっては、前記第一横板部及び前記第三横板部を前記扉に設け、前記第二横板部を前記側壁に設けており、前記第二横板部が前記第一横板部及び前記第三横板部の間に介在する。よって、前記第一横板部、前記第二横板部及び前記第三横板部が所謂ラビリンス構造を形成する。従って、霧状の冷却液がカバーの外側に移動することを抑制できる。 In the present invention, the first horizontal plate portion and the third horizontal plate portion are provided on the door, the second horizontal plate portion is provided on the side wall, and the second horizontal plate portion is the first horizontal plate portion. It is interposed between the lateral plate portion and the third lateral plate portion. Thus, the first lateral plate portion, the second lateral plate portion and the third lateral plate portion form a so-called labyrinth structure. Therefore, it is possible to prevent the coolant mist from moving to the outside of the cover.

本発明に係る工作機械は、前記扉の下部には、前記間隙を通して流れ落ちる冷却液を前記カバーの内側に案内する傾斜面が形成してある。 In the machine tool according to the present invention, the lower portion of the door is formed with an inclined surface for guiding the cooling liquid flowing down through the gap to the inside of the cover.

本発明にあっては、凝結した冷却液が前記間隙を通して下方に流れ落ちると、前記傾斜面が冷却液を前記カバーの内側に案内するので、凝結した冷却液が前記カバーの外側に流れることを未然に防止できる。 In the present invention, when the condensed coolant flows down through the gap, the inclined surface guides the coolant to the inside of the cover, thereby preventing the condensed coolant from flowing to the outside of the cover. can be prevented.

本発明によれば、カバー及び開閉扉の内側面に付着して凝結した冷却液がカバーの外側に流れ出すことを防止できる。 According to the present invention, it is possible to prevent the cooling liquid adhered and condensed on the inner surfaces of the cover and the opening/closing door from flowing out of the cover.

実施形態１の工作機械を略示する斜視図である。1 is a schematic perspective view of the machine tool of Embodiment 1. FIG. 工作機械本体を略示する斜視図である。It is a perspective view which briefly shows a machine tool main body. 扉ユニットの正面図である。It is a front view of a door unit. 扉ユニットの正面図である。It is a front view of a door unit. 扉ユニットの背面図である。It is a rear view of a door unit. 図３のＶＩ－ＶＩ線による扉ユニットの断面斜視図である。FIG. 4 is a cross-sectional perspective view of the door unit taken along line VI-VI of FIG. 3; 図３のＶＩＩ－ＶＩＩ線による扉ユニットの上部拡大断面図である。FIG. 4 is an upper enlarged sectional view of the door unit taken along line VII-VII of FIG. 3; 図３のＶＩＩＩ－ＶＩＩＩ線による扉ユニットの下部拡大断面図である。FIG. 4 is an enlarged cross-sectional view of the lower portion of the door unit taken along line VIII-VIII of FIG. 3; 開閉扉の斜視図である。It is a perspective view of an opening and closing door. 図９の円部分を拡大して示す拡大図である。FIG. 10 is an enlarged view showing an enlarged circle portion of FIG. 9; 実施形態２の工作機械本体において、開閉扉の構成を示す部分的斜視図である。FIG. 11 is a partial perspective view showing the configuration of an opening/closing door in the machine tool main body of Embodiment 2; 実施形態３の工作機械本体の扉ユニットの背面側を部分的に拡大表示する拡大図である。FIG. 11 is an enlarged view showing a partially enlarged view of the back side of the door unit of the machine tool main body of Embodiment 3;

（実施形態１）
以下、本発明の実施形態を図面に基づき説明する。以下の説明では、図において矢印で示す上下、左右、及び前後を使用する。図１は、実施形態１の工作機械１００を略示する斜視図である。工作機械１００は、工作機械本体１と、工作機械本体１を囲む本体カバー２と、ワーク交換装置３とを備えている。 (Embodiment 1)
BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, embodiments of the present invention will be described based on the drawings. In the following description, up/down, left/right, and front/rear directions indicated by arrows in the drawings are used. FIG. 1 is a perspective view schematically showing a machine tool 100 of Embodiment 1. FIG. A machine tool 100 includes a machine tool main body 1 , a main body cover 2 surrounding the machine tool main body 1 , and a workpiece changer 3 .

図２は、工作機械本体１を略示する斜視図である。工作機械本体１は、基台１１を備える。基台１１の後部上に、上下方向に延びたコラム１２が設けてある。コラム１２は、前部に主軸ヘッド１３を支持している。 FIG. 2 is a perspective view schematically showing the machine tool body 1. FIG. The machine tool body 1 has a base 11 . A vertically extending column 12 is provided on the rear portion of the base 11 . Column 12 supports a spindle head 13 at the front.

主軸ヘッド１３の下部には、上下方向に延びる主軸（図示略）が、上下方向に平行な軸回りに回転可能に保持してある。主軸ヘッド１３の上部には、前記主軸に連結してある主軸モータ１４が固定してある。前記主軸の下端部には、工具（図示略）が着脱可能に装着してある。基台１１の前部上に、左右方向及び前後方向に移動可能なワーク保持部１５が設けてある。 A vertically extending spindle (not shown) is held at the lower portion of the spindle head 13 so as to be rotatable about an axis parallel to the vertical direction. A spindle motor 14 connected to the spindle is fixed on the upper part of the spindle head 13 . A tool (not shown) is detachably attached to the lower end of the spindle. A work holding portion 15 is provided on the front portion of the base 11 so as to be movable in the left-right direction and the front-rear direction.

主軸ヘッド１３の前部には、タレット型の工具マガジン１６が設けてある。工具マガジン１６の周囲に複数の工具が保持してある。工具マガジン１６は、前記主軸に対する工具の取り付け及び取り外しを行う。コラム１２の後部には制御装置１７が取り付けてある。制御装置１７は工作機械本体１の動作を制御する。 A turret-type tool magazine 16 is provided in front of the spindle head 13 . A plurality of tools are held around the tool magazine 16 . A tool magazine 16 attaches and detaches tools to and from the spindle. A controller 17 is attached to the rear of the column 12 . A control device 17 controls the operation of the machine tool body 1 .

図１の如く、本体カバー２は、前壁２１、後壁２２、右壁２３（側壁）、左壁２４、及び天井２５を有し、工作機械本体１の前側、後側、右側、左側、及び上側を囲んでいる。前壁２１の中央部に正面扉２１１が設けてある。前壁２１の右部前側には、作業者の操作を受け付ける操作部２１２、及び画像を表示する表示部２１３が設けてある。後壁２２の後側に、制御装置１７は配置してある。 As shown in FIG. 1, the main body cover 2 has a front wall 21, a rear wall 22, a right wall 23 (side wall), a left wall 24, and a ceiling 25. and surrounds the top. A front door 211 is provided in the central portion of the front wall 21 . On the right front side of the front wall 21, there are provided an operation section 212 for receiving operator's operations and a display section 213 for displaying images. Behind the rear wall 22 the control device 17 is arranged.

制御装置１７の下方には、ポンプ装置４が設けてある。ポンプ装置４はタンクを有し、該タンクに貯留してある冷却液を、例えば、右壁２３の左面及び左壁２４の右面等の本体カバー２の内側面、並びに、主軸ヘッド１３に取り付けてある噴射部（図示略）に供給する。前記噴射部は、ワーク又は工具に冷却液を噴射して加工時に発生する熱を冷却し、切削屑を洗い流す。本体カバー２の内側面にも噴射部が設けてある。該噴射部は本体カバー２の内側面に冷却液を噴射し、内側面に付着している切削屑を洗い流す。 A pump device 4 is provided below the control device 17 . The pump device 4 has a tank, and the cooling liquid stored in the tank is attached to the inner surface of the main body cover 2, such as the left surface of the right wall 23 and the right surface of the left wall 24, and the spindle head 13. It is supplied to a certain injection part (not shown). The injection unit injects cooling liquid onto the workpiece or tool to cool heat generated during machining and wash away cutting debris. An injection part is also provided on the inner surface of the body cover 2 . The injection part injects the cooling liquid onto the inner surface of the main body cover 2 to wash away the chips adhering to the inner surface.

噴射後の冷却液は工作機械本体１の下部へ流れる。ポンプ装置４は噴射後の冷却液を回収する。ポンプ装置４は、回収した冷却液にろ過処理を施して切削屑を除去してタンクへ送り、再び噴射部へ供給する。 The coolant after injection flows to the lower part of the machine tool body 1 . The pump device 4 collects the coolant after injection. The pump device 4 filters the collected cooling liquid to remove chips, sends the cooling liquid to the tank, and supplies it to the injection part again.

右壁２３の中央には、例えば矩形の開口部（図示略）が形成してある。右壁２３よりも右側には、開閉扉５１を有する扉ユニット５が取り付けてある。開閉扉５１は、右壁２３の厚さ方向と直交する方向（前後方向）に移動する。 For example, a rectangular opening (not shown) is formed in the center of the right wall 23 . A door unit 5 having an opening/closing door 51 is mounted on the right side of the right wall 23 . The opening/closing door 51 moves in a direction perpendicular to the thickness direction of the right wall 23 (front-rear direction).

扉ユニット５よりも右側にワーク交換装置３が配置してある。ワーク交換装置３は、支持台３１と、アーム３２とを備える。支持台３１は上下方向に延びた柱状をなす。支持台３１の上端部に、アーム３２が取り付けてある。アーム３２は左右方向に移動する。アーム３２の先端部には、ワークを把持する把持部３２１が設けてある。ワーク交換装置３は、開閉扉５１の開閉に連動して、ワークの本体カバー２内側への搬入、及びワークの本体カバー２外側への搬出を行う。 A work exchanging device 3 is arranged on the right side of the door unit 5.例文帳に追加The work exchanging device 3 includes a support base 31 and an arm 32 . The support base 31 has a columnar shape extending in the vertical direction. An arm 32 is attached to the upper end of the support base 31 . Arm 32 moves in the left-right direction. A gripping portion 321 for gripping a workpiece is provided at the tip of the arm 32 . In conjunction with opening and closing of the opening/closing door 51 , the work exchanging device 3 carries in the work to the inside of the main body cover 2 and carries out the work to the outside of the main body cover 2 .

図３及び図４は、扉ユニット５の正面図である。図４では、後述する上カバー５４を省略した状態を示す。 3 and 4 are front views of the door unit 5. FIG. FIG. 4 shows a state in which an upper cover 54, which will be described later, is omitted.

図５の如く、扉ユニット５は、右壁２３の内側面の一部を構成する取り付け板５２を備える。取り付け板５２は、第一板５２１及び第二板５２２を備える。第一板５２１は、前後方向に長寸の矩形状をなす。第一板５２１よりも左側に第二板５２２が設けてある。即ち、第一板５２１の内側に第二板５２２が取り付けてある。第二板５２２は、上下方向に長寸の矩形状をなす。第二板５２２の前後方向及び上下方向の長さは、第一板５２１の前後方向及び上下方向の長さよりも短い。 As shown in FIG. 5 , the door unit 5 includes a mounting plate 52 forming part of the inner surface of the right wall 23 . The mounting plate 52 comprises a first plate 521 and a second plate 522 . The first plate 521 has a rectangular shape elongated in the front-rear direction. A second plate 522 is provided on the left side of the first plate 521 . That is, the second plate 522 is attached inside the first plate 521 . The second plate 522 has a vertically elongated rectangular shape. The longitudinal and vertical lengths of the second plate 522 are shorter than the longitudinal and vertical lengths of the first plate 521 .

取り付け板５２は、第一板５２１及び第二板５２２を左右方向に貫通する開口部５２３を有する。開口部５２３は、上下方向に延びる矩形状であり、第一板５２１の略中央部に形成してある。開口部５２３の位置が右壁２３の開口部の位置と整合するように、第一板５２１及び第二板５２２が例えばねじ止めによって右壁２３に取り付けてある。 The mounting plate 52 has an opening 523 passing through the first plate 521 and the second plate 522 in the left-right direction. The opening 523 has a rectangular shape extending in the vertical direction and is formed substantially in the center of the first plate 521 . A first plate 521 and a second plate 522 are attached to the right wall 23 by screwing, for example, so that the position of the opening 523 is aligned with the position of the opening of the right wall 23 .

扉ユニット５は開口部５２３を開閉する開閉扉５１を備える。開閉扉５１は開口部５２３を覆うように設けてある。図６に示すように開閉扉５１は、左側が開放してある略直方体状をなし、上下方向に延びる。開閉扉５１の下面は、左側が右側よりも下方となるように傾斜している。開閉扉５１の後面よりも後側には第一縦板部６が取り付けてある。 The door unit 5 includes an opening/closing door 51 that opens and closes the opening 523 . The opening/closing door 51 is provided so as to cover the opening 523 . As shown in FIG. 6, the opening/closing door 51 has a substantially rectangular parallelepiped shape with an open left side and extends vertically. The lower surface of the opening/closing door 51 is inclined so that the left side is lower than the right side. A first vertical plate portion 6 is attached to the rear side of the rear surface of the opening/closing door 51 .

開閉扉５１の上部には、開閉扉５１を前後方向に移動可能に支持する上ローラ機構５３（図４参照）と、上ローラ機構５３を覆う上カバー５４（図３参照）とが設けてある。
図７は、図３のＶＩＩ－ＶＩＩ線による扉ユニット５の上部拡大断面図である。上ローラ機構５３は、レール５３１、ローラ５３２、及びローラ支持板５３３を含む。レール５３１は、例えば金属製の細長い長方形の板であり、前後方向に延びる。レール５３１は第一板５２１の上部前側に取り付けてある。 An upper roller mechanism 53 (see FIG. 4) that supports the open/close door 51 so as to be movable in the front-rear direction and an upper cover 54 (see FIG. 3) that covers the upper roller mechanism 53 are provided above the open/close door 51 . .
FIG. 7 is an enlarged top cross-sectional view of the door unit 5 taken along line VII-VII in FIG. The upper roller mechanism 53 includes rails 531 , rollers 532 and roller support plates 533 . The rail 531 is an elongated rectangular plate made of metal, for example, and extends in the front-rear direction. A rail 531 is attached to the upper front side of the first plate 521 .

ローラ支持板５３３は、上下方向の幅がレール５３１よりも広い略矩形状の板であり、開閉扉５１の上面から上方へ突設してある。ローラ５３２は、例えば金属製又は樹脂製の円盤であり、ローラ支持板５３３の左側面の上部に、前後方向に隔てて一つずつ設けてある（図９参照）。各ローラ５３２の回転軸は左右方向に延び、各ローラ５３２の外周面には全周に亘って凹部が形成してある。ローラ５３２は、レール５３１の上面上を、前後方向に摺動する。 The roller support plate 533 is a substantially rectangular plate whose width in the vertical direction is wider than that of the rail 531 , and protrudes upward from the upper surface of the opening/closing door 51 . The rollers 532 are discs made of metal or resin, for example, and are provided one by one on the upper left side surface of the roller support plate 533 so as to be spaced apart in the front-rear direction (see FIG. 9). The rotation shaft of each roller 532 extends in the left-right direction, and the outer peripheral surface of each roller 532 is formed with a concave portion over the entire circumference. The roller 532 slides on the upper surface of the rail 531 in the front-rear direction.

各ローラ５３２の下方に円柱状の当接部５３４が設けてある。当接部５３４は、例えば、左右方向を軸方向とする軸体に回動可能に円筒形のブッシュを嵌合して構成する。各当接部５３４の周面はレール５３１の下面と当接する。 A cylindrical contact portion 534 is provided below each roller 532 . The contact portion 534 is configured by, for example, fitting a cylindrical bush rotatably on a shaft having an axial direction in the left-right direction. The peripheral surface of each contact portion 534 contacts the lower surface of the rail 531 .

ローラ支持板５３３の左側面の下部には、前後方向に延びる第一横板部５３５及び第三横板部５３７が、上下方向に並んで取り付けてある。第一横板部５３５及び第三横板部５３７はローラ支持板５３３の左側面に突設してある。第三横板部５３７は第一横板部５３５よりも上側に設けてある。第二板５２２には、開口部５２３近傍に、断面視Ｌ字形状の第二横板部５３６が設けてある。第二横板部５３６は板材を屈曲してなり、前後方向に延びる。第二横板部５３６は、第二板５２２の左側面に取り付けてある一板部と、該一板部の下辺から開口部５２３を通って右方向に延びた他板部とを有する。前記他板部の端部が第一横板部５３５及び第三横板部５３７の間に介在している。第一横板部５３５、第三横板部５３７及び前記他板部は平行をなす。これによって、第一横板部５３５、第三横板部５３７及び第二横板部５３６（他板部）は所謂ラビリンス構造を形成する。 A first lateral plate portion 535 and a third lateral plate portion 537 extending in the front-rear direction are attached to the lower portion of the left side surface of the roller support plate 533 so as to be aligned in the vertical direction. The first horizontal plate portion 535 and the third horizontal plate portion 537 protrude from the left side surface of the roller support plate 533 . The third lateral plate portion 537 is provided above the first lateral plate portion 535 . The second plate 522 is provided with a second horizontal plate portion 536 having an L-shaped cross section near the opening 523 . The second horizontal plate portion 536 is formed by bending a plate material and extends in the front-rear direction. The second horizontal plate portion 536 has one plate portion attached to the left side surface of the second plate 522 and another plate portion extending rightward through the opening 523 from the lower side of the one plate portion. An end portion of the other plate portion is interposed between the first horizontal plate portion 535 and the third horizontal plate portion 537 . The first lateral plate portion 535, the third lateral plate portion 537 and the other plate portion are parallel. Thereby, the first horizontal plate portion 535, the third horizontal plate portion 537 and the second horizontal plate portion 536 (the other plate portion) form a so-called labyrinth structure.

ワーク若しくは工具、又は本体カバー２の内側面へ冷却液を噴射した場合、熱を奪った冷却液は霧状になる。霧状の冷却液の一部は、開閉扉５１の上部近傍で、取り付け板５２との間を通って外側へ移動しようとする。しかし、第一横板部５３５、第三横板部５３７及び第二横板部５３６の他板部がラビリンス構造を形成しているので、該ラビリンス構造を通過する際に時間経過と共に凝結し、霧状の冷却液は第一横板部５３５、第三横板部５３７及び第二横板部５３６の他板部に付着する。よって、霧状の冷却液が開閉扉５１と取り付け板５２との隙間を通って外側へ移動することを阻止できる。 When the cooling liquid is sprayed onto the work or tool or the inner surface of the main body cover 2, the cooling liquid that has taken heat becomes a mist. Some of the mist-like cooling liquid tries to move outward through the space between the mounting plate 52 and the vicinity of the upper portion of the opening/closing door 51 . However, since the other plate portions of the first horizontal plate portion 535, the third horizontal plate portion 537, and the second horizontal plate portion 536 form a labyrinth structure, when passing through the labyrinth structure, it condenses over time, The mist-like coolant adheres to the first lateral plate portion 535 , the third lateral plate portion 537 and the second lateral plate portion 536 . Therefore, it is possible to prevent the cooling liquid mist from moving outward through the gap between the opening/closing door 51 and the mounting plate 52 .

図８は、図３のＶＩＩＩ－ＶＩＩＩ線による扉ユニット５の下部拡大断面図である。開閉扉５１の下側には、下ローラ機構５５が設けてある。下ローラ機構５５は、下カバー５５１、レール支持板５５２、レール５５３、ローラ支持板５５４、及び複数のローラ５５５を備える。下カバー５５１は、前後方向に延び（図３及び図４参照）、第一板５２１の下部の開口部５２３近傍から右方へ斜めに突設した傾斜板部５５６（傾斜面）と、傾斜板部５５６の突出端から開閉扉５１の下部まで上方へ延びる垂直板部とを有する。傾斜板部５５６は、左縁部が右縁部よりも下方となるように傾斜している。 FIG. 8 is an enlarged cross-sectional view of the lower portion of the door unit 5 taken along line VIII-VIII of FIG. A lower roller mechanism 55 is provided below the opening/closing door 51 . The lower roller mechanism 55 includes a lower cover 551 , rail support plates 552 , rails 553 , roller support plates 554 and a plurality of rollers 555 . The lower cover 551 extends in the front-rear direction (see FIGS. 3 and 4), and includes an inclined plate portion 556 (inclined surface) projecting obliquely to the right from the vicinity of the opening 523 in the lower portion of the first plate 521, and an inclined plate. and a vertical plate portion extending upward from the projecting end of the portion 556 to the lower portion of the opening/closing door 51 . The inclined plate portion 556 is inclined such that the left edge is lower than the right edge.

レール支持板５５２は、前後方向に延び、互いに垂直をなす２つの板部を有する。レール支持板５５２は２つの板部のうち一方が下カバー５５１の前記垂直板部の内側面に固定してあり、他方が前記垂直板部の内側面から垂直に立ち上がり、レール５５３を支持している。レール５５３は、前後方向に延び、レール支持板５５２（前記他方の板部）の下面に取り付けてある。レール５５３は、レール支持板５５２の前記他方の板部に取り付けてある取付板部と、該取付板部の長辺縁から垂直に下方へ延びたレール板とを有する。該レール板上をローラ５５５が摺動する。 The rail support plate 552 has two plate portions extending in the front-rear direction and perpendicular to each other. One of the two plate portions of the rail support plate 552 is fixed to the inner surface of the vertical plate portion of the lower cover 551 , and the other vertically rises from the inner surface of the vertical plate portion to support the rail 553 . there is The rail 553 extends in the front-rear direction and is attached to the lower surface of the rail support plate 552 (the other plate portion). The rail 553 has a mounting plate portion attached to the other plate portion of the rail support plate 552, and a rail plate extending vertically downward from the long side edge of the mounting plate portion. A roller 555 slides on the rail plate.

ローラ支持板５５４は、前後方向に延び、縦断面視Ｌ字形状をなす。ローラ支持板５５４は、開閉扉５１の下端部に取り付けてある第一板部と、該第一板部の下端から右方へ水平に延びる第二板部とを備える。ローラ支持板５５４の前記第二板部の上方に、レール支持板５５２及びレール５５３が配置してある。ローラ支持板５５４の前記第二板部の上面には、回転軸方向を上下方向にして、複数のローラ５５５が設けてある。ローラ５５５は、例えば、ローラ支持板５５４の前記第二板部の前後方向両端部に、２つずつ左右方向に並んで設けてある。左右方向に並ぶ２つのローラ５５５の間には、レール５５３が介在してある。 The roller support plate 554 extends in the front-rear direction and has an L-shape in vertical cross-section. The roller support plate 554 includes a first plate portion attached to the lower end portion of the opening/closing door 51 and a second plate portion horizontally extending rightward from the lower end of the first plate portion. A rail support plate 552 and a rail 553 are arranged above the second plate portion of the roller support plate 554 . A plurality of rollers 555 are provided on the upper surface of the second plate portion of the roller support plate 554 with the direction of the rotation axis set in the vertical direction. For example, two rollers 555 are provided side by side in the left-right direction at both ends in the front-rear direction of the second plate portion of the roller support plate 554 . A rail 553 is interposed between two rollers 555 arranged in the horizontal direction.

開閉扉５１が前後方向に移動して開口部５２３を開閉する際、ローラ５３２及びローラ５５５が夫々レール５３１及びレール５５３に沿って移動する。上ローラ機構５３は開閉扉５１の上下方向への揺れを規制し、下ローラ機構５５は開閉扉５１の左右方向への揺れを規制する。 When the opening/closing door 51 moves forward and backward to open and close the opening 523, the rollers 532 and 555 move along the rails 531 and 553, respectively. The upper roller mechanism 53 regulates the swinging of the opening/closing door 51 in the vertical direction, and the lower roller mechanism 55 regulates the swinging of the opening/closing door 51 in the horizontal direction.

図９は、開閉扉５１の斜視図である。開閉扉５１の移動方向における開閉扉５１の端面のうち、後面には第一縦板部６が取り付けてある。第一縦板部６は上下方向に延びる細長い長方形の板である。第二縦板部７は第一縦板部６から前側へ間隙９を隔てて設け、且つ上下方向に延びる細長い長方形の板である。第一縦板部６及び第二縦板部７は平行であり、左右方向における第一縦板部６及び第二縦板部７の幅は略等しい。上下方向において、第一縦板部６及び第二縦板部７の中央部には切り欠きが形成してあり、右壁２３の掛止部（図示略）と係合して開閉扉５１の閉じ状態を維持する被掛止部が形成してある。 FIG. 9 is a perspective view of the opening/closing door 51. As shown in FIG. The first vertical plate portion 6 is attached to the rear surface of the end surface of the opening/closing door 51 in the movement direction of the opening/closing door 51 . The first vertical plate portion 6 is an elongated rectangular plate extending in the vertical direction. The second vertical plate portion 7 is an elongated rectangular plate provided forward from the first vertical plate portion 6 with a gap 9 therebetween and extending vertically. The first vertical plate portion 6 and the second vertical plate portion 7 are parallel, and the widths of the first vertical plate portion 6 and the second vertical plate portion 7 in the horizontal direction are substantially equal. A notch is formed in the central portion of the first vertical plate portion 6 and the second vertical plate portion 7 in the vertical direction, and engages with a latching portion (not shown) of the right wall 23 to open the opening and closing door 51. A hooked portion is formed to maintain the closed state.

図１０は、図９の円部分を拡大して示す拡大図である。図１０では、便宜上、後述する後端部５２２ａを一点鎖線にて示している。第二縦板部７は、第一横板部５３５の幅より広い幅を有しており、第一横板部５３５の後端から下方向に延びる。第二縦板部７の上端は第一横板部５３５の後端と接し、第二縦板部７の上端面は第一横板部５３５の上面に連続している。第一横板部５３５の後端は、第一縦板部６よりも開閉扉５１の内側、即ち、第一縦板部６よりも前側に配置してある。第三横板部５３７の後端は第一横板部５３５の後端から更に後方に延びている。例えば、第三横板部５３７は後端が第一縦板部６の真上まで延びている。
上述の如く、第二縦板部７から間隙９を隔てて後側に第一縦板部６が第二縦板部７と対向するように配置してある。第一縦板部６の上端の縁が第二縦板部７の上端の縁よりも低くなるよう設けてある。 10 is an enlarged view showing an enlarged circle portion of FIG. 9. FIG. In FIG. 10, for the sake of convenience, a rear end portion 522a, which will be described later, is indicated by a dashed line. The second vertical plate portion 7 has a width wider than that of the first horizontal plate portion 535 and extends downward from the rear end of the first horizontal plate portion 535 . The upper end of the second vertical plate portion 7 is in contact with the rear end of the first horizontal plate portion 535 , and the upper end surface of the second vertical plate portion 7 is continuous with the upper surface of the first horizontal plate portion 535 . The rear end of the first horizontal plate portion 535 is arranged on the inner side of the opening/closing door 51 than the first vertical plate portion 6 , that is, on the front side of the first vertical plate portion 6 . The rear end of the third horizontal plate portion 537 extends further rearward from the rear end of the first horizontal plate portion 535 . For example, the rear end of the third horizontal plate portion 537 extends right above the first vertical plate portion 6 .
As described above, the first vertical plate portion 6 is arranged on the rear side of the second vertical plate portion 7 with the gap 9 therebetween so as to face the second vertical plate portion 7 . The edge of the upper end of the first vertical plate portion 6 is provided so as to be lower than the edge of the upper end of the second vertical plate portion 7 .

第二縦板部７の両長辺のうち、本体カバー２の内側、即ち左側長辺の縁部には、屈曲形状部材８が取り付けてある。屈曲形状部材８は横断面視フック形状をなしている。即ち、屈曲形状部材８は、板材を屈曲加工してなる。屈曲形状部材８は第二縦板部７の左側長辺の端部から本体カバー２の内側に延び、内側端から後側に屈曲し、該屈曲端部から本体カバー２の外側に端部８１が延びる。屈曲形状部材８の端部８１は、第二板５２２のうち後端部５２２ａに隣接して配置してある。屈曲形状部材８の端部８１は後端部５２２ａに対して略垂直をなす。このような構成を有するので、開閉扉５１を閉じた場合に屈曲形状部材８は第二板５２２の内側面（後端部５２２ａ）と開閉扉５１との隙間を覆う。 Of the two long sides of the second vertical plate portion 7, a curved member 8 is attached to the inner side of the main body cover 2, that is, to the edge of the left long side. The bent member 8 has a hook shape in cross section. That is, the bent member 8 is formed by bending a plate material. The bent member 8 extends inside the body cover 2 from the end of the left long side of the second vertical plate portion 7, bends rearward from the inner end, and extends from the bent end to the outside of the body cover 2. extends. The end portion 81 of the bent member 8 is arranged adjacent to the rear end portion 522 a of the second plate 522 . The end 81 of the bent member 8 is substantially perpendicular to the rear end 522a. With such a configuration, when the opening/closing door 51 is closed, the curved member 8 covers the gap between the inner surface (rear end portion 522a) of the second plate 522 and the opening/closing door 51 .

上述の如く、実施形態１の工作機械本体１では、霧状の冷却液が前記ラビリンス構造を通過する際に第一横板部５３５、第三横板部５３７及び第二横板部５３６の他板部に付着する。よって、霧状の冷却液が開閉扉５１と取り付け板５２との隙間を通って外側へ移動することを阻止できる。
第一横板部５３５、第三横板部５３７及び第二横板部５３６の他板部に付着した冷却液の水滴は自重によって落ち、主に第一横板部５３５の上面に溜まる。第一横板部５３５の上面に溜まった冷却液は、例えば開閉扉５１の開閉に伴う振動により第一横板部５３５の上面に沿って流れる（図１０の点線の矢印参照）。即ち、開閉扉５１の開閉時に、第一横板部５３５の上面に溜まった冷却液が第二縦板部７及び第一縦板部６を超えて、本体カバー２の外側に流れ落ちるおそれがある。外側に流れた冷却液は床を汚す。また、冷却液が外側に流れると、再使用できる冷却液の量が減少するので、冷却液の補充の頻度は増え、作業効率が低下する。 As described above, in the machine tool main body 1 of Embodiment 1, when the mist-like cooling liquid passes through the labyrinth structure, the first horizontal plate portion 535, the third horizontal plate portion 537, and the second horizontal plate portion 536, as well as other Adheres to the plate. Therefore, it is possible to prevent the cooling liquid mist from moving outward through the gap between the opening/closing door 51 and the mounting plate 52 .
Water droplets of the cooling liquid adhering to the other plate portions of the first horizontal plate portion 535 , the third horizontal plate portion 537 and the second horizontal plate portion 536 drop due to their own weight and mainly accumulate on the upper surface of the first horizontal plate portion 535 . The cooling liquid accumulated on the upper surface of the first horizontal plate portion 535 flows along the upper surface of the first horizontal plate portion 535 due to, for example, vibration accompanying the opening and closing of the opening/closing door 51 (see the dotted arrow in FIG. 10). That is, when the opening/closing door 51 is opened and closed, the coolant accumulated on the upper surface of the first horizontal plate portion 535 may overflow the second vertical plate portion 7 and the first vertical plate portion 6 and flow down to the outside of the main body cover 2. . The coolant that flows outside stains the floor. In addition, when the cooling liquid flows outward, the amount of the cooling liquid that can be reused decreases, so the frequency of refilling the cooling liquid increases, and the work efficiency decreases.

これに対して、本開示の工作機械本体１では、第二縦板部７から間隙９を隔てて後側に第一縦板部６が設けてある。即ち、第一縦板部６及び第二縦板部７の間には間隙９が形成してある。よって、第一横板部５３５の上面に沿って流れる冷却液が、第一縦板部６を超えて本体カバー２の外側に流れ落ちることはなく、間隙９を通して下方に落ちる。 On the other hand, in the machine tool body 1 of the present disclosure, the first vertical plate portion 6 is provided behind the second vertical plate portion 7 with the gap 9 therebetween. That is, a gap 9 is formed between the first vertical plate portion 6 and the second vertical plate portion 7 . Therefore, the cooling liquid flowing along the upper surface of the first horizontal plate portion 535 does not pass over the first vertical plate portion 6 and falls to the outside of the main body cover 2 , but falls downward through the gap 9 .

図８の如く、間隙９（開閉扉５１）の下方には傾斜板部５５６が設けてあるので、間隙９を通して流れる冷却液は傾斜板部５５６上に落ち、傾斜板部５５６の案内により、本体カバー２の内側に流れる。従って、冷却液が本体カバー２の外側に流れ落ちて床を汚すことを防止でき、再使用できる冷却液の量が減少することも防止できる。 As shown in FIG. 8, since an inclined plate portion 556 is provided below the gap 9 (open/close door 51), the cooling liquid flowing through the gap 9 falls on the inclined plate portion 556 and is guided by the inclined plate portion 556 to It flows inside the cover 2 . Therefore, it is possible to prevent the cooling liquid from flowing down to the outside of the main body cover 2 and staining the floor, and it is also possible to prevent the amount of reusable cooling liquid from decreasing.

また、本開示の工作機械本体１は、上述の如く、第一縦板部６の上端の縁が第二縦板部７の上端の縁よりも低くなるよう設けてある。よって、開閉扉５１の開閉時に、第二横板部５３６の他板部の下面に付着してぶら下がっている冷却液の水滴に第一縦板部６の上端の縁が当たり、冷却液の水滴が第一縦板部６を超えて本体カバー２の外側に落ちることを未然に防止できる。 Further, the machine tool body 1 of the present disclosure is provided so that the upper edge of the first vertical plate portion 6 is lower than the upper edge of the second vertical plate portion 7, as described above. Therefore, when the opening/closing door 51 is opened and closed, the water droplets of the cooling liquid adhering to and hanging from the lower surface of the other plate portion of the second horizontal plate portion 536 hit the edge of the upper end of the first vertical plate portion 6, and the water droplets of the cooling liquid can be prevented from exceeding the first vertical plate part 6 and falling to the outside of the body cover 2. - 特許庁

更に、本開示の工作機械本体１は、上述の如く、第二縦板部７に取り付けてある屈曲形状部材８は開閉扉５１を閉じた場合に第二板５２２の内側面（後端部５２２ａ）と開閉扉５１との隙間を覆う。即ち、屈曲形状部材８の端部８１が第二板５２２のうち後端部５２２ａに隣接して配置してあり、後端部５２２ａと屈曲形状部材８（端部８１）は所謂ラビリンス構造を形成する。従って、発生した霧状の冷却液が第二板５２２と開閉扉５１との隙間から本体カバー２の外側に移動することを未然に防止できる。 Further, in the machine tool body 1 of the present disclosure, as described above, when the opening/closing door 51 is closed, the bending member 8 attached to the second vertical plate portion 7 can ) and the opening/closing door 51 are covered. That is, the end portion 81 of the bent member 8 is arranged adjacent to the rear end portion 522a of the second plate 522, and the rear end portion 522a and the bent member 8 (the end portion 81) form a so-called labyrinth structure. do. Therefore, it is possible to prevent the generated mist-like coolant from moving to the outside of the main body cover 2 through the gap between the second plate 522 and the opening/closing door 51 .

（実施形態２）
図１１は、実施形態２の工作機械本体１において、開閉扉５１の構成を示す部分的斜視図である。図１１では、便宜上、第二横板部５３６を共に示しており、開閉扉５１及び第二横板部５３６の一部を取り除いた状態を示している。
実施形態２の工作機械本体１でも、開閉扉５１は、実施形態１と同様、開閉扉５１の移動方向における開閉扉５１の後面に第一縦板部６が取り付けてあり、第一縦板部６から前側へ間隙９を隔てて第二縦板部７が設けてある。第一縦板部６及び第二縦板部７は平行であり、左右方向における第一縦板部６及び第二縦板部７の幅は略等しい。第二縦板部７は、第一横板部５３５の後端から下方向に延びる。第三横板部５３７の後端は第一横板部５３５の後端から更に後方に延びている。第三横板部５３７は後端が第一縦板部６の真上まで延びており、第一縦板部６の上端の縁が第二縦板部７の上端の縁よりも低くなるよう設けてある。
第二縦板部７の左側長辺の縁部には屈曲形状部材８が取り付けてあり、開閉扉５１を閉じた場合に屈曲形状部材８は第二板５２２の内側面（後端部５２２ａ）と開閉扉５１との隙間を覆う。 (Embodiment 2)
FIG. 11 is a partial perspective view showing the configuration of the opening/closing door 51 in the machine tool body 1 of Embodiment 2. As shown in FIG. In FIG. 11, for convenience, the second horizontal plate portion 536 is also shown, showing a state in which parts of the opening/closing door 51 and the second horizontal plate portion 536 are removed.
In the machine tool main body 1 of Embodiment 2, as in Embodiment 1, the opening/closing door 51 has the first vertical plate portion 6 attached to the rear surface of the opening/closing door 51 in the movement direction of the opening/closing door 51. A second vertical plate portion 7 is provided on the front side from 6 with a gap 9 therebetween. The first vertical plate portion 6 and the second vertical plate portion 7 are parallel, and the widths of the first vertical plate portion 6 and the second vertical plate portion 7 in the horizontal direction are substantially equal. The second vertical plate portion 7 extends downward from the rear end of the first horizontal plate portion 535 . The rear end of the third horizontal plate portion 537 extends further rearward from the rear end of the first horizontal plate portion 535 . The rear end of the third horizontal plate portion 537 extends right above the first vertical plate portion 6 , and the upper edge of the first vertical plate portion 6 is lower than the upper edge of the second vertical plate portion 7 . It is provided.
A curved member 8 is attached to the edge of the left long side of the second vertical plate portion 7, and when the opening/closing door 51 is closed, the curved member 8 is attached to the inner surface of the second plate 522 (rear end portion 522a). and the opening/closing door 51 are covered.

実施形態２の工作機械１００では、第二横板部５３６の後側の端部は上側に湾曲してある。実施形態１と同様、第二横板部５３６の前記他板部は、第一横板部５３５及び第三横板部５３７の間に介在しており、第一横板部５３５及び第三横板部５３７と平行をなし、第一横板部５３５、第三横板部５３７及び第二横板部５３６（他板部）は所謂ラビリンス構造を形成する（図７参照）。第二横板部５３６の他板部において、第二縦板部７よりも後側の端部５３６ａは、後端に近い程上の位置になるよう傾斜している。 In the machine tool 100 of Embodiment 2, the rear end portion of the second horizontal plate portion 536 is curved upward. As in the first embodiment, the other plate portion of the second horizontal plate portion 536 is interposed between the first horizontal plate portion 535 and the third horizontal plate portion 537, Parallel to the plate portion 537, the first horizontal plate portion 535, the third horizontal plate portion 537 and the second horizontal plate portion 536 (another plate portion) form a so-called labyrinth structure (see FIG. 7). In the other plate portion of the second horizontal plate portion 536, the end portion 536a on the rear side of the second vertical plate portion 7 is inclined so that the closer to the rear end, the higher the position.

このような構成を有するので、霧状の冷却液が第二横板部５３６の他板部の下面に付着して冷却液の水滴を形成する場合、第二横板部５３６の他板部の端部５３６ａには冷却液の水滴が存在しなくなる。端部５３６ａが傾斜しているので、形成した水滴は自重により第二縦板部７側、即ち第一縦板部６から遠ざかる方向に間隙９の上まで移動し、間隙９を通して落ちる。
よって、例えば開閉扉５１の開閉に伴う振動により冷却液の水滴が本体カバー２の外側に落ちることをより確実に防止し、冷却液の水滴が本体カバー２の外側に落ちて床を汚すことを防止でき、再使用できる冷却液の量が減少することも防止できる。 With such a configuration, when the mist-like cooling liquid adheres to the lower surface of the other plate portion of the second horizontal plate portion 536 to form water droplets of the cooling liquid, the other plate portion of the second horizontal plate portion 536 No water droplets of coolant are present at the end 536a. Since the end portion 536a is slanted, the formed water droplet moves toward the second vertical plate portion 7, that is, in a direction away from the first vertical plate portion 6, up to the gap 9, and falls through the gap 9.
Therefore, it is possible to more reliably prevent droplets of the cooling liquid from dropping to the outside of the main body cover 2 due to, for example, vibrations associated with the opening and closing of the opening/closing door 51, and to prevent the droplets of cooling liquid from dropping to the outside of the main body cover 2 and staining the floor. A reduction in the amount of coolant that can be prevented and reused is also prevented.

（実施形態３）
図１２は、実施形態３の工作機械本体１の扉ユニット５の背面側を部分的に拡大表示する拡大図である。
開閉扉５１の移動方向の後側の端面には第一縦板部６が取り付けてある。第二縦板部７は第一縦板部６から前側へ間隙９を隔てて第一縦板部６と平行に設けてある。第一縦板部６及び第二縦板部７の形状は既に説明しており、省略する。 (Embodiment 3)
FIG. 12 is an enlarged view showing a partially enlarged rear side of the door unit 5 of the machine tool body 1 of Embodiment 3. As shown in FIG.
A first vertical plate portion 6 is attached to the rear end face of the opening/closing door 51 in the moving direction. The second vertical plate portion 7 is provided forward from the first vertical plate portion 6 in parallel with the first vertical plate portion 6 with a gap 9 therebetween. The shapes of the first vertical plate portion 6 and the second vertical plate portion 7 have already been explained, and will be omitted.

第二縦板部７は上端部が第一横板部５３５と交差するように設けてあり、第二縦板部７の上端部は第一横板部５３５の後端に接する。第二縦板部７は上端面が第一横板部５３５の上面よりも高くなるように設けてある。即ち、第二縦板部７の上端は第一横板部５３５の上面よりも上側に延びる。 The second vertical plate portion 7 is provided so that the upper end portion intersects the first horizontal plate portion 535 , and the upper end portion of the second vertical plate portion 7 contacts the rear end of the first horizontal plate portion 535 . The second vertical plate portion 7 is provided so that the upper end surface thereof is higher than the upper surface of the first horizontal plate portion 535 . That is, the upper end of the second vertical plate portion 7 extends above the upper surface of the first horizontal plate portion 535 .

上述の如く、第一横板部５３５の上面に溜まった冷却液は、例えば開閉扉５１の開閉に伴う振動により第一横板部５３５の上面に沿って第一縦板部６側に流れる。しかし、実施形態３の工作機械本体１では、第二縦板部７の上端が第一横板部５３５の上面よりも高いので、第一縦板部６側に第一横板部５３５の上面を流れる冷却液を第二縦板部７の上端部がせき止め、本体カバー２の内側に落とす。たとえ、冷却液が第二縦板部７の上端部を乗り越えて流れた時でも、第一縦板部６及び第二縦板部７の間には間隙９が形成してあり、冷却液が第一縦板部６を超えて本体カバー２の外側に流れ落ちることはない。 As described above, the cooling liquid accumulated on the upper surface of the first horizontal plate portion 535 flows along the upper surface of the first horizontal plate portion 535 toward the first vertical plate portion 6 due to vibration accompanying opening and closing of the opening/closing door 51, for example. However, in the machine tool main body 1 of Embodiment 3, since the upper end of the second vertical plate portion 7 is higher than the upper surface of the first horizontal plate portion 535, the upper surface of the first horizontal plate portion 535 is positioned toward the first vertical plate portion 6 side. The upper end portion of the second vertical plate portion 7 dams up the coolant flowing through the second vertical plate portion 7 and drops it inside the main body cover 2 . Even if the coolant flows over the upper end of the second vertical plate portion 7, a gap 9 is formed between the first vertical plate portion 6 and the second vertical plate portion 7, so that the cooling liquid It does not flow down to the outside of the body cover 2 beyond the first vertical plate portion 6. - 特許庁

１ 工作機械本体
２ 本体カバー
６ 第一縦板部
７ 第二縦板部
８ 屈曲形状部材
９ 間隙
２３ 右壁
２５ 天井
５１ 開閉扉
１００ 工作機械
５３５ 第一横板部
５３６ 第二横板部
５３７ 第三横板部
５５６ 傾斜板部 1 machine tool main body 2 main body cover 6 first vertical plate portion 7 second vertical plate portion 8 curved member 9 gap 23 right wall 25 ceiling 51 door 100 machine tool 535 first horizontal plate portion 536 second horizontal plate portion 537 second Three horizontal plate portion 556 Inclined plate portion

Claims (10)

工作機械本体を囲み、天井及び側壁を有するカバーと、前記側壁に設けた開口を開閉する扉とを備える工作機械であって、
前記扉の移動方向に延び、前記扉の上部に設け、且つ霧状の冷却液の移動を妨げる第一横板部と、
前記移動方向に直交する上下方向に延び、前記移動方向における前記扉の端面に設けてある第一縦板部とを備え、
前記第一横板部の前記移動方向側一端は前記第一縦板部よりも前記扉の内側に配置してある
工作機械。 A machine tool comprising a cover surrounding a machine tool body and having a ceiling and side walls, and a door for opening and closing an opening provided in the side wall,
a first horizontal plate portion extending in the direction of movement of the door, provided on the upper portion of the door, and preventing movement of the cooling liquid mist;
a first vertical plate portion extending in the vertical direction orthogonal to the moving direction and provided on an end surface of the door in the moving direction;
A machine tool, wherein one end of the first horizontal plate portion on the moving direction side is arranged inside the door with respect to the first vertical plate portion. 前記第一縦板部と平行に上下方向に延び、且つ前記第一縦板部から前記移動方向に間隙を隔てて設けてある第二縦板部を備え、
前記第一横板部が前記第二縦板部と接続した
請求項1に記載の工作機械。 a second vertical plate portion extending vertically in parallel with the first vertical plate portion and provided with a gap in the moving direction from the first vertical plate portion;
2. The machine tool according to claim 1, wherein the first horizontal plate portion is connected to the second vertical plate portion. 前記第一縦板部の上端の位置は前記第二縦板部の上端の位置よりも低い
請求項２に記載の工作機械。 The machine tool according to claim 2, wherein the position of the upper end of the first vertical plate portion is lower than the position of the upper end of the second vertical plate portion. 前記第二縦板部の上端は前記第一横板部よりも上方に位置する
請求項２又は３に記載の工作機械。 The machine tool according to claim 2 or 3, wherein the upper end of the second vertical plate portion is located above the first horizontal plate portion. 前記第二縦板部の上端と前記第一横板部の前記一端が接続する
請求項２又は３に記載の工作機械。 The machine tool according to claim 2 or 3, wherein the upper end of the second vertical plate portion and the one end of the first horizontal plate portion are connected. 前記第二縦板部の前記カバー内側の長辺側に取り付けてあり、前記扉を閉じた場合に前記側壁の内側面と前記扉との隙間を覆う部材を備える
請求項２から５の何れか一項に記載の工作機械。 6. The member according to any one of claims 2 to 5, which is attached to the long side inside the cover of the second vertical plate portion and covers a gap between the inner surface of the side wall and the door when the door is closed. The machine tool according to item 1. 前記第一横板部よりも上方に設けてあり、前記第一縦板部の近傍まで延びる第二横板部を備え、
前記第二横板部の端部は上側に湾曲してある
請求項１から６の何れか一項に記載の工作機械。 A second horizontal plate portion provided above the first horizontal plate portion and extending to the vicinity of the first vertical plate portion,
The machine tool according to any one of claims 1 to 6, wherein an end portion of the second horizontal plate portion is curved upward. 前記第二横板部よりも上方に設けてあり、前記第一縦板部の近傍まで延び、前記第一横板部と平行である第三横板部を備える
請求項７に記載の工作機械。 8. The machine tool according to claim 7, further comprising a third horizontal plate portion provided above the second horizontal plate portion, extending to the vicinity of the first vertical plate portion, and parallel to the first horizontal plate portion. . 前記第一横板部及び前記第三横板部は前記扉に設けてあり、
前記第二横板部は前記側壁の内側面に設けてあり、前記第一横板部及び前記第三横板部の間に介在する
請求項８に記載の工作機械。 The first horizontal plate portion and the third horizontal plate portion are provided on the door,
The machine tool according to claim 8, wherein the second horizontal plate portion is provided on the inner surface of the side wall and is interposed between the first horizontal plate portion and the third horizontal plate portion. 前記扉の下部には、前記間隙を通して流れ落ちる冷却液を前記カバーの内側に案内する傾斜面が形成してある
請求項２から６の何れか一項に記載の工作機械。 7. The machine tool according to any one of claims 2 to 6, wherein the lower portion of the door is formed with an inclined surface that guides the coolant flowing down through the gap to the inside of the cover.
JP2021055784A 2021-03-29 2021-03-29 Machine tool Pending JP2022152853A (en)

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