1307649 (1) 九、發明說明 【發明所屬之技術領域】 本發明是關於工作機械，詳細的話， 止冷卻液或切粉從底基上朝周圍飛散的工 【先前技術】 以往，工作機械的一種也就是加工中 座的底基上，具備由切削工具加工工件的 底基上，具備供覆蓋機械本體的一部分或 擋板。此保護擋板，是防止切粉或冷卻游 上部的工作台或機械本體朝外部周圍飛散 具備這種保護擋板的加工中心，一搬 具有凹狀的收納部，對於其收納部的底面 端部直接螺固。但是，在此構造中，底基 及保護擋板的下端部之間會產生間隙’碎 間隙漏出外側。 在此，公知的工作機械，例如，在1 及收納部的周板之間形成空間部’在該； 擋板的外方’壓入供防止冷卻液等的漏！ 封墊。其他，如日本專利公開2 0 0 2年第 工作機械中，在底基上的收納部’包圍工 口部，在其開口部內配置密封墊’供塞住 保護擋板的下部之間。在此工作機械中’ 擋板的內側裝卸密封墊’所以密封墊的裝 是具備蓋，可防 作機械。 心，是在成爲底 |機械本體，在其 :是全部用的保護 :從被設在底基的 〇 :是在底基的上部 將保護擋板的下 的收納部的底面 •卻液可能會從該 護擋板的下部、 間部內，從保護 用的橡膠製的密 2 0 5 5 4 2號公報的 作機械側設置開 收納部的底面及 因爲可以在保護 卸作業容易。密 -4- (2) (2)1307649 封墊是因爲隱藏於保護擋板的內側，所以也可以提昇美觀 〇 但是，在此工作機械中，爲了塞住底基的收納部的底 面及保護擋板的下部之間的間隙而使用密封墊，該密封墊 因爲多是橡膠製或海綿製，所以耐久性缺乏。因此，需要 一定時期的密封墊的交換，而具有麻煩的密封墊的交換裝 卸作業的問題。此密封墊，爲了不使從開口部脫落，而由 金屬板從上按壓固定，就會有切粉會卡在固定該金屬板用 的螺栓或螺帽，切粉就會以該處爲基點漸漸堆積的問題。 【發明內容】 本發明的目的，是提供一種工作機械，防止落下於底 基上的冷卻液漏出底基外，且可以防止切粉堆積於底基上 0 爲了達成上述目的，申請專利範圍第1項的工作機械 ，是具備：底基；及機械本體，可加工被設在前述底基上 的工件；及蓋，是被固定於前述底基上，並且形成覆蓋前 述底基的上部及前述機械本體的一部分或是全部的箱狀， 該工作機械，是在前述底基的上部具備凹狀的收納部，可 將前述蓋的下部收納支撐於內側，在該收納部的底部及前 述蓋的下部之間具備迷宮部。 依據申請專利範圍第1項的工作機械’落下於收納部 的冷卻液即使勢力佳地侵入迷宮部，在通過此迷路狀的通 路時可以減弱冷卻液的威勢。由此，可以防止收納部內的 -5- (3) 1307649 冷卻液漏出底基外。 因爲未使用習知的如的密封墊，所以在迷宮部內，不 存在固定供按壓密封墊用的金屬板的螺釘或螺帽等的固定 . 具、或障礙物等。由此，即使冷卻液中的切粉，在迷宮部 ^ 內，切粉也不會卡在障礙物等而堆積。 申請專利範圍第2項的工作機械中，沿著前述底基的 側壁，具備從前述收納部的底部朝向上方延伸的板構件， _ 並由前述蓋的下部及前述板構件構成迷宮部。 依據申請專利範圍第2項的工作機械，沿著底基的側 壁，只設置從收納部的底部朝向上方延伸的板構件，就可 , 容易由板構件及蓋的下部構成迷宮部。 ^ 申請專利範圍第3及4項的工作機械中，是具備： 凹狀的排出通路，是供將形成於前述底基的前述收納部的 前述底部的切粉及冷卻液朝前述收納部外排出用；及凹狀 的流槽構件，被配設於該排出通路的內側且沿著前述排出 φ 通路延伸，並且具有比前述排出通路的寬度更短的寬度， 且由底壁、及從該底壁的寬方向兩端部立起的一對的側壁 所構成，前述板構件，是由前述流槽構件的前述一對的側 壁之中位置於前述收納部的外側之外側側壁所構成。 依據申請專利範圍第3及4項的工作機械，在排出通 路的內側，藉由配置具備比前述排出通路短的寬度的流槽 構件，就可以容易將構成迷宮部的板構件，構成流槽構件 的外側側壁。藉由使冷卻液流動於流槽構件的內側，即使 冷卻液從流槽構件溢出，也可藉由流入排出通路內而將冷 -6 - (4) (4)1307649 卻液排出底基外。流槽構件的寬度因爲比排出通路的寬度 短，所以在流槽構件及排出通路之間會產生間隙，流動於 流槽構件的內側的冷卻液即使從流槽構件溢出，冷卻液也 可從該間隙流動至排出通路內。 申請專利範圍第5項的工作機械，是在前述蓋的前述 下部具有形成叉狀的叉部，由前述叉部挾住前述板構件。 依據申請專利範圍第5項的工作機械，藉由將形成於 蓋的下部的叉部，配置成挾住板構件，就可將由板構件及 蓋的下部所構成的迷宮部，更複雜化地延長。藉此，可以 更減弱侵入迷宮部在冷卻液的流動的威勢。 申請專利範圍第6及7項的工作機械，是在前述收納 部的前述底部，形成支撐供固定前述工件用的工作台之支 撐台，且相面對於前述外側側壁的內側側壁的上端部，是 抵接於前述支撐台。 依據申請專利範圍第6及7項的工作機械，相面對於 流槽構件的外側側壁的內側側壁的上端部因爲抵接於支撐 台’所以從供支撐支撐台用的工作台落下的冷卻液可以流 入流槽構件。流槽構件，因爲配置成靠近排出通路的支撐 台側’所以在流槽構件的外側側壁及排出通路的內側面之 間可以形成間隙。由此，冷卻液即使越過流槽構件的外側 側壁’冷卻液會與排出通路之間的間隙而流入排出通路內 【實施方式】 -7- (5) (5)1307649 以下，依據圖面說明本發明的一實施例的加工中心1 0 在第4圖、第5圖，左傾斜上側爲底基2的前方，右 傾斜下側爲底基2之後方，左傾斜下側爲底基2的右側， 右傾斜上側爲底基2的左側。在第6圖，左傾斜上側爲右 側流槽構件70的前方，右傾斜下側爲右側流槽構件70之 後方，左傾斜下側爲右側流槽構件70的右側，右傾斜上 側爲右側流槽構件70的左側。以下的說明，加工中心1 的X軸方向，是指加工中心1的左右方向，Y軸方向，是 指加工中心1的前後方向（深度方向），Z軸方向，是指加 工中心1的上下方向。 本實施例的加工中心1，是如第4圖所示，在被設在 底基2上的凹狀的收納部20的底部21、及在保護擋板3 的下部之間，設有成爲特徵的迷路狀的迷宮部60(第3圖 參照）。 首先，說明加工中心1的槪略結構。如第1圖所示的 加工中心1，是藉由使圖示外的工件及工具相對移動，對 於工件施加所期的機械加工（例如，「鏜削」、「銑削」 、「開孔」、「切削」等）的工作機械。此加工中心1，主 體是由：成爲基台的鐵製的底基2、及加工被設在該底基 2的上部的工件的機械本體、及固定於前述底基2的上部 供覆蓋機械本體及底基2的上部用的箱狀的保護擋板3所 構成。加工中心1，是在保護擋板3之後方具備控制箱9 ，內藏供控制加工中心1的動作用的控制裝置（圖示外）。 -8- (6) (6)1307649 如第1圖所示的保護擋板3，是相當於「蓋」。 如第1圖、第2圖所示，底基2，是藉由將鑄鐵等的 金屬材料澆入鑄型內而成型，具有γ軸方向較長的略直方 II的形狀。其芯部，是爲了輕量化、高強度化及低成本化 ’而被鏤空成形（肋的骨組構造）。底基2，是在下部的四 隅’各具備高度調節可能的腳部2a。藉由將這些4根的腳 部2a設置於工場等的地面，將加工中心1設在預定場所 。底基2，是在上部後方側的兩隅部，具備相互分離的一 對的立柱座部4、4(第2圖中只圖示1個）。立柱座部4、4 ’是具有略直方體的形狀的台座。將Z軸方向延設的柱狀 的立柱5的下部固定在一對的立柱座部4、4上。 如第3圖所示，底基2，是在其上部，具備由底部21 及周板22所構成的凹狀的收納部20 (第4圖參照），在其 收納部20的內側，成爲收納保護擋板3的下部的狀態。 加工中心1，是在保護擋板3的下部、及底基2的收納部 2〇的底部2 1之間，具備本發明的特徵也就是迷路狀的迷 宮部60。由此，可以防止流動於底基2的收納部20內的 冷卻液，越過底基2的周板22漏出底基2外。此底基2 的上部構造、及迷宮部60的結構如後述。 保護擋板3’是如第1圖乃至第3圖所示’由：前壁 3 a、右側壁3 b、左側壁3 c、天壁3 d、從底基2上部朝右 傾斜側方突出的右底壁、從底基2上部朝左傾斜側方突 出的左底壁3 f、從立柱5的前面朝右側突出的右背壁3 g '從立柱5的前面朝左側突出的左背壁3h等的複數金屬 -9 - (7) (7)1307649 板所構成’並具有箱狀的形狀。如第1圖所示，前壁3 a， 是在略中央’具有縱長的長方形狀的開口部1〇，在該開口 部1 0中’具備滑動開閉式的開閉門1 1。藉由將此開閉門 11的把手部11a朝左方向滑動，開口部10會打開，就可 以進行被保持於後述工作台8 (第3圖參照）上的工件的裝 卸。前壁3 a ’是在開閉門丨1的右側具備操作盤1 2，供進 行加工中心1的加工程序、或加工程序等的參數的設定輸 入用。 如第1圖、第2圖所示’右側壁3b，是具有長方形狀 的開口部1 4，在該開口部1 4中，具備裝卸可能地被固定 的蓋狀的檢點艙口 1 5。藉由取下此保護擋板側蓋！ 5，打 開開口部1 4，就可進行：工作台8上的工件的裝卸作業、 或被收納於保護擋板3的內側的構成機械本體的各種裝置 的維修作業。雖無圖示，但是左側壁3c也具備與右側壁 3 b同樣的開口部、及閉塞該開口部的保護擋板側蓋。 保護擋板3的天壁3d’是具備：主軸頭（圖示外或 朝主軸頭的配線（圖示外）、刀具交換裝置6 (第3圖參照） 的馬達（圖示外）等突出的開口部（圖示外）。如第1圖、第 2圖所示，箱狀的蓋1 7、1 8 ’是各別覆蓋該開口部。保護 擋板3的前壁3 a，是在上部左側的角部具備塔型的警告報 知燈泡1 6，供將加工中心1的動作錯誤報知作業者用。 如第3圖所示，保護擋板3，是在其內側，收納供進 行工件的切削加工用的機械本體。此機械本體的主體，是 由：在被設在底基2的上部後方的立柱座部4、4(第2圖 -10- (8) 1307649 參照）上被載置固定的柱狀的立柱5、及被保持在相面對於 底基2的上部的前面側且朝該立柱5的Z軸方向移動可能 的主軸頭（圖示外）、及被保持於該主軸頭的下部且旋轉可 能的主軸7、及裝設於該主軸7且可自動交換工具之刀具 交換裝置（ATC)6所構成。底基2上部的收納部20具備工 作台8，可裝卸地固定工件，並且可朝XY軸方向移動。 在此，說明工作台8。如第3圖所示的工作台8 ’是 位置在被設在底基2的收納部20的內側之後述工作台支 撐台24(第4圖參照）上，可將收納部20內朝XY軸方向（ 水平面）移動。具體而言，工作台8，是在其下側具備移動 體50,移動體50，是在其上部，具備沿著X軸方向延伸 的一對X軸送出線性導軌（圖示外）。而且，藉由具有滾珠 絲桿軸、螺帽及X馬達（圖示外）等的X軸移動機構’使工 作台8移動於前述一對的X軸送出線性導軌上。移動體 5 0 ’是在底基2的收納部2 0內，可移動於沿著Y軸方向 延伸的一對Y軸送出線性導軌3 0、3 0上。具體上，藉由 具有與前述X軸移動機構同樣的滾珠絲桿軸、螺帽及Y 馬達（圖示外）等的Y軸移動機構，使移動體50移動於前 述一對的Y軸送出線性導軌3 0、3 0上。由此，工作台8 是可以朝XY軸方向移動。 •%» 如第3圖所示，X軸送出線性導軌，可將工作台8挾 持於中央，在上部的左右兩側各具備可伸縮的一對的伸縮 護板52、53。γ軸送出導引30、30，也在其上部各具備 :伸縮護板54，被配置於工作台8的前側；及Y軸後蓋（ -11 - (9) 1307649 圖示外），是形成剖面略山形的金屬板，配置於工作台8 及立柱5的前面側之間。藉此，工作台8即使朝任一方向 (只限構成水平面的XY軸方向）移動，這些各種蓋也可覆 蓋X軸送出線性導軌及Y軸送出線性導軌30、30。因此 ，可以防止切粉堆積在X軸送出線性導軌及γ軸送出線 性導軌3 0、3 0上。1307649 (1) IX. Description of the Invention [Technical Fields of the Invention] The present invention relates to a working machine, and in particular, a method for stopping the cooling liquid or the cutting powder from scattering onto the substrate. [Prior Art] In the past, a working machine That is, the base of the machining center has a base for machining the workpiece by the cutting tool, and a part or baffle for covering the mechanical body. The protective baffle is a machining center having such a protective baffle that prevents the cutting or cooling of the upper portion of the table or the mechanical body from moving toward the outside, and has a concave storage portion for the bottom end portion of the storage portion. Direct screwing. However, in this configuration, a gap is formed between the base and the lower end portion of the protective baffle, and the gap leaks out of the outer side. Here, in the known working machine, for example, a space portion is formed between 1 and the peripheral plate of the accommodating portion, and the outer side of the baffle is pressed to prevent leakage of the coolant or the like! Gland. Further, in the working machine of the Japanese Patent Publication No. 2002, the accommodating portion on the base surrounds the working portion, and a gasket is disposed in the opening portion to be inserted between the lower portions of the protective baffle. In this working machine, the inside of the baffle is loaded and unloaded with a gasket. Therefore, the gasket is equipped with a cover to prevent it from being mechanical. The heart is in the bottom | the mechanical body, in which it is: the protection of the whole: from the bottom of the base: the bottom of the bottom of the base will protect the bottom of the storage part of the baffle From the lower portion of the baffle plate and the inner portion of the baffle plate, the bottom surface of the accommodating portion is provided on the machine side of the rubber seal of the protective rubber, and it is easy to handle the work. The dense -4- (2) (2) 1307649 is because it is hidden inside the protective baffle, so it can also be improved. However, in this working machine, in order to plug the bottom of the storage part of the base and protect the block A gasket is used for the gap between the lower portions of the plates, and since the gasket is mostly made of rubber or sponge, durability is lacking. Therefore, it is necessary to exchange the gaskets for a certain period of time, and there is a problem of troublesome replacement and handling of the gaskets. In order to prevent the detachment from the opening, the gasket is pressed and fixed from the metal plate, and the cut powder will be caught in the bolt or nut for fixing the metal plate, and the cutting powder will gradually become the base point. The problem of accumulation. SUMMARY OF THE INVENTION An object of the present invention is to provide a working machine that prevents a coolant falling on a substrate from leaking out of a substrate and prevents the powder from being deposited on the substrate. To achieve the above object, the patent application is first. The working machine of the present invention comprises: a base; and a mechanical body that can process the workpiece provided on the base; and a cover that is fixed to the base and forms an upper portion covering the base and the machine a part or all of the main body of the main body, the working machine having a concave storage portion on the upper portion of the base, and the lower portion of the cover can be accommodated and supported inside, at the bottom of the storage portion and at the lower portion of the cover There is a labyrinth between them. According to the working machine of the first application of the patent scope, the coolant falling in the accommodating portion can invade the labyrinth portion even if the force is excellent, and the power of the coolant can be weakened when passing through the lost path. Thereby, it is possible to prevent the -5-(3) 1307649 coolant in the accommodating portion from leaking out of the substrate. Since the conventional gasket is not used, there is no fixing of a screw or a nut or the like for fixing the metal plate for pressing the gasket in the labyrinth portion, or an obstacle or the like. Thereby, even if the cut powder in the cooling liquid is in the labyrinth portion ^, the cut powder does not get stuck in an obstacle or the like and accumulates. In the machine tool according to the second aspect of the invention, the side wall of the base is provided with a plate member extending upward from the bottom of the storage portion, and the lower portion of the cover and the plate member constitute a labyrinth portion. According to the working machine of the second aspect of the patent application, only the plate member extending upward from the bottom of the accommodating portion is provided along the side wall of the base, and the labyrinth portion can be easily formed by the lower portion of the plate member and the cover. The working machine according to the third and fourth aspects of the present invention includes: a concave discharge passage for discharging the cutting powder and the cooling liquid at the bottom portion of the storage portion formed in the base portion to the outside of the storage portion And a concave flow channel member disposed on the inner side of the discharge passage and extending along the discharge φ passage, and having a width shorter than a width of the discharge passage, and the bottom wall and the bottom portion A pair of side walls that are erected at both end portions in the width direction of the wall, and the plate member is formed by a side wall of the pair of side walls of the flow channel member located outside the storage portion. According to the working machine of the third and fourth aspects of the application, in the inside of the discharge passage, by arranging the flow channel member having a width shorter than the discharge passage, the plate member constituting the labyrinth portion can be easily formed into the flow channel member. Outer side wall. By flowing the coolant to the inside of the launder member, even if the coolant overflows from the launder member, the cold -6 - (4) (4) 1307649 can be discharged out of the substrate by flowing into the discharge passage. Since the width of the flow channel member is shorter than the width of the discharge passage, a gap is formed between the flow channel member and the discharge passage, and even if the coolant flowing inside the flow channel member overflows from the flow channel member, the coolant can be supplied from the coolant. The gap flows into the discharge passage. The machine tool according to claim 5 is characterized in that a fork portion having a fork shape is formed in the lower portion of the cover, and the plate member is caught by the fork portion. According to the working machine of the fifth aspect of the patent application, the labyrinth portion formed by the lower portion of the plate member and the cover can be more complicatedly extended by arranging the fork portion formed on the lower portion of the cover to be caught by the plate member. . Thereby, the power of the flow of the coolant in the labyrinth can be more weakened. In the working machine according to the sixth and seventh aspects of the invention, the support base for supporting the table for fixing the workpiece is formed on the bottom portion of the storage portion, and the upper end portion of the inner side wall of the outer side wall is opposite to each other. Abuts on the aforementioned support table. According to the working machine of the sixth and seventh aspects of the patent application, the upper end portion of the inner side wall of the outer side wall of the flow channel member faces off from the support table by the upper end portion of the inner side wall of the flow channel member, so that the coolant falling from the table for supporting the support table can be Flow into the runner member. Since the flow channel member is disposed close to the support table side of the discharge passage, a gap can be formed between the outer side wall of the flow channel member and the inner side surface of the discharge passage. Therefore, even if the coolant passes over the outer side wall of the flow cell member, the gap between the coolant and the discharge passage flows into the discharge passage. [Embodiment] -7- (5) (5) 1307649 Hereinafter, the description will be based on the drawings. In the fourth and fifth figures of the present invention, the left oblique upper side is the front side of the base 2, the right oblique lower side is the rear side of the base 2, and the left inclined lower side is the right side of the base 2. The upper side of the right slope is the left side of the base 2. In Fig. 6, the upper left inclined side is the front side of the right side flow channel member 70, the right inclined lower side is the rear side of the right side flow channel member 70, the left inclined lower side is the right side of the right side flow channel member 70, and the right inclined upper side is the right side flow cell. The left side of member 70. In the following description, the X-axis direction of the machining center 1 refers to the left-right direction of the machining center 1, the Y-axis direction refers to the front-rear direction (depth direction) of the machining center 1, and the Z-axis direction refers to the vertical direction of the machining center 1. . The machining center 1 of the present embodiment is provided with a bottom portion 21 of a concave accommodating portion 20 provided on the base 2 and a lower portion of the protective baffle 3 as shown in Fig. 4 The labyrinth of the labyrinth portion 60 (refer to Fig. 3). First, the outline structure of the machining center 1 will be described. As shown in Fig. 1, the machining center 1 is configured to apply a predetermined machining process to the workpiece by relatively moving the workpiece and the tool (for example, "cutting", "milling", "opening", "Machine", etc.). The machining center 1 is mainly composed of an iron base 2 as a base, a machine body for processing a workpiece provided on an upper portion of the base 2, and an upper portion fixed to the base 2 to cover the machine body. A box-shaped protective baffle 3 for the upper portion of the base 2 is formed. The machining center 1 is provided with a control box 9 behind the protective shutter 3, and a control device (not shown) for controlling the operation of the machining center 1 is incorporated. -8- (6) (6) 1307649 The protective baffle 3 shown in Fig. 1 corresponds to the "cover". As shown in Fig. 1 and Fig. 2, the base 2 is molded by pouring a metal material such as cast iron into a mold, and has a shape of a slightly square II having a long γ-axis direction. The core portion is hollowed out (rib structure of the rib) for weight reduction, high strength, and low cost. The base 2 is a foot 2a having a height adjustment possibility in each of the lower four sides. By providing these four leg portions 2a on the floor of a factory or the like, the machining center 1 is placed at a predetermined place. The base 2 is a crotch portion on the upper rear side, and has a pair of column base portions 4 and 4 which are separated from each other (only one is shown in Fig. 2). The pillar bases 4, 4' are pedestals having a substantially rectangular parallelepiped shape. The lower portion of the columnar column 5 extending in the Z-axis direction is fixed to the pair of column base portions 4, 4. As shown in Fig. 3, the base 2 is provided with a concave accommodating portion 20 (refer to FIG. 4) which is formed by the bottom portion 21 and the peripheral plate 22, and is housed inside the accommodating portion 20. The state of the lower portion of the baffle 3 is protected. The machining center 1 is provided between the lower portion of the protective baffle 3 and the bottom portion 21 of the accommodating portion 2 of the base 2, and has a lost portion of the fascinating portion 60. Thereby, it is possible to prevent the coolant flowing in the accommodating portion 20 of the base 2 from leaking out of the base 2 beyond the peripheral plate 22 of the base 2. The upper structure of the base 2 and the structure of the labyrinth portion 60 will be described later. The protective baffle 3' is as shown in Fig. 1 to Fig. 3': the front wall 3a, the right side wall 3b, the left side wall 3c, the sky wall 3d, and the side of the base 2 are inclined to the right. a right bottom wall, a left bottom wall 3f protruding laterally from the upper portion of the base 2 to the left, and a right back wall 3g' protruding from the front side of the column 5 toward the right side. The left back wall protruding from the front of the column 5 toward the left side The complex metal of 3h, etc. - 9 (7) (7) 1307649 is composed of a plate and has a box shape. As shown in Fig. 1, the front wall 3a has a vertically elongated opening 1'' in a slightly centered portion, and the opening/closing type opening and closing door 1' is provided in the opening portion 110. By sliding the handle portion 11a of the opening and closing door 11 in the left direction, the opening portion 10 is opened, and the workpiece held by the table 8 (refer to Fig. 3) to be described later can be attached and detached. The front wall 3 a ' is provided with an operation panel 1 2 on the right side of the opening and closing threshold 1 for setting input of a machining program of the machining center 1 or a machining program. As shown in Fig. 1 and Fig. 2, the right side wall 3b has a rectangular opening portion 14 in which a lid-like checkpoint hatch 15 which is detachably attached and detachable is provided. By removing the protective bezel side cover! 5. When the opening portion 14 is opened, the work of attaching and detaching the workpiece on the table 8 or the maintenance work of various devices constituting the machine body housed inside the protective shutter 3 can be performed. Although not shown, the left side wall 3c also has an opening similar to the right side wall 3b and a protective bezel side cover that closes the opening. The ceiling wall 3d' of the protective shutter 3 is provided with a spindle head (outside the figure or the wiring of the spindle head (outside the drawing), and the motor (not shown) of the tool changing device 6 (refer to FIG. 3). The opening (outside of the drawing). As shown in Fig. 1 and Fig. 2, the box-shaped covers 17 and 18' cover each of the openings. The front wall 3a of the protective panel 3 is at the upper portion. The corner portion on the left side is provided with a tower type warning notification lamp 16 for notifying the operator of the operation of the machining center 1. As shown in Fig. 3, the protective baffle 3 is housed inside to accommodate the cutting of the workpiece. A machine body for processing. The main body of the machine body is placed and fixed on the column base portions 4 and 4 (refer to FIG. 2 - (8) 1307649) provided on the rear of the upper portion of the base 2. The columnar column 5 and the spindle head (outside the figure) which are held on the front side of the upper surface of the base 2 and moved in the Z-axis direction of the column 5, and are held by the spindle head A spindle 7 that is rotatable in the lower part and a tool changer (ATC) 6 that is mounted on the spindle 7 and that can automatically exchange tools. The accommodating portion 20 at the upper portion of the base 2 is provided with a table 8, and the workpiece is detachably fixed and movable in the XY-axis direction. Here, the table 8 will be described. The table 8' shown in Fig. 3 is positioned. In the inside of the accommodating portion 20 of the base 2, the table support 24 (refer to FIG. 4) can move the inside of the accommodating portion 20 in the XY-axis direction (horizontal plane). Specifically, the table 8 is The lower side is provided with a moving body 50, and the moving body 50 is provided with a pair of X-axis linear guides extending outside the X-axis direction (outside the figure), and has a ball screw shaft and a nut. And an X-axis moving mechanism such as an X motor (not shown) moves the table 8 to the pair of X-axis feeding linear guides. The moving body 50' is in the housing portion 20 of the base 2, and A pair of Y-axis extending in the Y-axis direction is fed out of the linear guides 30, 30. Specifically, the ball screw shaft, the nut, and the Y motor having the same X-axis moving mechanism are illustrated (illustrated a Y-axis moving mechanism such as the other, moving the moving body 50 to the pair of Y-axis feeding linear guides 3 0, 3 0. Thus, the table 8 can be moved in the XY direction. • %» As shown in Fig. 3, the X-axis feeds the linear guide, which can hold the table 8 in the center, and has the left and right sides on the upper side. A pair of telescopic shields 52 and 53 that are telescopic, γ-axis delivery guides 30 and 30, and a plurality of telescopic shields 54 on the upper side thereof, which are disposed on the front side of the table 8 and a Y-axis back cover ( 11 - (9) 1307649 (outside the figure) is a metal plate having a slightly mountain-shaped profile, and is disposed between the table 8 and the front side of the column 5. Thereby, the table 8 is oriented in either direction (only the horizontal plane is formed) In the XY axis direction), these various covers can also cover the X-axis feed linear guide and the Y-axis feed linear guides 30, 30. Therefore, it is possible to prevent the powder from being deposited on the X-axis feed linear guide and the γ-axis feed linear guides 30 and 30.
接著，詳細說明底基2的上部構造。如第4圖所示’ 底基2，是在其上部，具有呈上面開口的凹狀一體成型的 收納部20。此收納部20，是具備：朝Y軸方向延伸的平 面視略長方形狀的底部21、及包圍該底部21的周緣立設 的周板22。底部21，是從底基2的前方朝向後方坡度小 地朝下方傾斜。周板22，是讓底基2之後方側開放’ Y軸 方向較長的平面視略長方形的下邊具有缺口形狀。藉此’ 朝保護擋板3的內側飛散並落下至收納部20內的冷卻液 ，是沿著底部2 1的傾斜面流動，從底基2之後方流出底 基2外。如第4圖所示的周板22，是相當於「前述底基的 側壁」。 接著，說明設在周板22的各構件。如第4圖所示’ 底基2的前方側的周板22的上端部，是具備一對隔著預 定間隔被固定且具有預定厚度的板狀的固定板40、40 °此 一對的固定板40、40，是各具備與將周板22上下方向貫 通的螺釘孔（圖示外）連通的固定孔40a。底基2的左右兩 側的周板22的各上端部，是具備一對隔著預定間隔被固 定且具有預定厚度的板狀的支撐板42、42。 -12- (10) (10)1307649 將保護擋板3固定於底基2上時’使用這些固定板40 及支撐板42。在固定板40中，如第1圖、第9圖所示， 抵接被安裝於保護擋板3的前壁3 a的下端部的托架5 8， 由螺釘68所固定。在支撐板42上’如第2圖、第8圖所 示，抵接有被設在保護擋板3的右底壁3e(左底壁3f)的下 端部附近的外側面的後述剖面略L字狀的支撐片1 1 2的一 片。藉此，將保護擋板3的下部支撐於周板22的支撐板 42上。如此，將保護擋板3安裝於底基2上。 接著，說明被設在底部21的各構件的構造。如第4 圖所示，位置於底部2 1的左右兩側之間的略中央部具備 略直方體狀的工作台支撐台24，供將工作台8略水平支撐 於收納部20內用，且與底部21 —體成型。工作台支撐台 24，是由：略直方體狀的支撐台本體25、及分別從該支撐 台本體25的左右兩端部呈略垂直立設的一對右支撐壁26 及左支撐壁28所構成，垂直於長度方向的橫剖面是具有 略凹狀的形狀。此工作台支撐台24的前面、右側面及左 側面、及底部2 1、及包圍周板22形成的凹狀的通路，是 成爲供將冷卻液流出底基2外用的「排出通路」。 接著，說明具有工作台支撐台24的構造。首先，說 明具有支撐台本體25的構造。如第4圖所示，支撐台本 體25，是在其上面後方側，具備一對的支撐塊件47、47 。此支撐塊件47、47 ’是將前述Y軸移動機構的滾珠絲 桿軸（圖示外）的一端旋轉可能地支撐，並且固定供旋轉該 滾珠絲桿軸用的Y馬達（圖示外）。支撐台本體25，是在其 -13- (11) (11)1307649 上面前方側，具備將前述滾珠絲桿軸的另一端旋轉可能地 支撐用的一對的支撐塊件48、48。藉由這些支撐塊件47 、48，支撐構成上述Y軸移動機構的各種構件，將Y軸 移動機構配置在比一對的右支撐壁26及左支撐壁28的各 上端部更下側。 接著，說明具有右支撐壁26及左支撐壁28的構造。 如第4圖所示，右支撐壁26及左支撐壁28的各上端部， 是各具備供安裝於Y軸送出線性導軌30(第3圖參照）用的 平面視帶狀的線性導軌安裝面2 7、2 9。那些線性導軌安裝 面2 7、2 9的內側（工作台支撐台2 4的內側）的各角部，是 爲了定位Y軸送出線性導軌3 0而朝上方突出，且各具備 剖面凸狀的肩部27a ' 29a。由此，對於線性導軌安裝面 27、29，在從工作台支撐台24的內側朝向外側的方向安 裝有一對Y軸送出線性導軌30，可抵接各肩部27a、29a 並定位。 底部21，是在工作台支撐台24之後方，具備形成從 底部21上立起的狀態且從正面看略Y字狀的座部支撐台 32。座部支撐台32，是在其上部的左右兩側’具備相互分 離的一對可載置固定立柱5的下部的台座也就是略直方體 狀的的立柱座部4、4。該立柱座部4、4的下部及周板 的上端部之間，分別連接平面視梯形狀的水平板3 4 °那些 水平板34的下側，是將落下於收納部20內的冷卻液從座 部支撐台3 2的兩側朝向底基2的後方排出用的形成險道 狀的冷卻液通路3 5。在水平板34的上面、及接觸該水平 -14- (12) (12)1307649 板3 4的上面的立柱座部4的外側面之間，形成略三角形 狀的補強用的3枚的肋45是隔著預定間隔並列。 座部支撐台3 2，是在一對的立柱座部4、4之間，具 備從工作台支撐台24的上部後方朝向底基2的後方坡度 小地朝下方傾斜的傾斜部3 7。 由此，落下於支撐台本體2 5的上面的冷卻液是沿著 其傾斜部3 7流動，朝底基2的後方流出。 在上述構造的收納部20的底部21，是如第5圖所示 ，舖設有形成剖面凹狀的流槽的平面視略L字型的一對的 右側流槽構件70及左側流槽構件80。此一對的右側流槽 構件70及左側流槽構件80，是埋沒工作台支撐台24的前 側及左右兩側地舖設。此右側流槽構件70及左側流槽構 件80，是讓冷卻液流入內側並導至底基2的後方，並且構 成本發明的特徵也就是迷宮部60的一部分。 接著，說明右側流槽構件7 0及左側流槽構件8 0的構 造。如第5圖所示的一對的右側流槽構件70及左側流槽 構件8 0，是由具有平滑的側面的金屬板所構成。右側流槽 構件7 0，是如第6圖所示’由：朝X軸方向延伸的橫方 向部72、及從該橫方向部72的長度方向一端部與Y軸方 向平行延伸的縱方向部73所構成’整體是具有平面視略 L字型的形狀。左側流槽構件8 0也同樣，如第5圖所示 ，由：朝X軸方向延伸的橫方向部8 2 '及從該橫方向部 82的長度方向一端部與Y軸方向平行延伸的縱方向部83 所構成，整體是具有平面視略L字型的形狀。右側流槽構 -15- (13) (13)1307649 件70及左側流槽構件8 0，其構造的大部分因爲是具有相 互左右對稱的形狀，所以以右側流槽構件7 0爲中心詳細 說明，簡略左側流槽構件80的說明。如第5圖所示的右 側流槽構件7 0及左側流槽構件8 0，是相當於「凹狀的流 槽構件」。 首先，說明橫方向部72。如第6圖所示’橫方向部 72，是具備平面視橫長的長方形狀的橫本體72a ’在垂直 於該橫本體72a的長度方向的方向的一端部’具備將該一 端部的預定寬略直角折返形成的側壁部72b ° 橫本體72a，是在其長度方向一端部’具備供重疊左 側流槽構件8 0的橫方向部8 2的長度方向一端部連結用的 平面視長方形狀的連結部72c。該連結部72c ’是具備被 設在左側流槽構件80的橫方向部82的一端部的與固定孔 85、85相面對的2個固定孔（圖示外）。由此’將左側流槽 構件80的橫方向部82的一端部重疊於連結部72c的上面 後，將螺釘66連通嵌合於各固定孔’藉由螺帽（圖示外）固 定，使右側流槽構件及左側流槽構件80相互連結。 接著，說明縱方向部7 3。如第6圖所示’縱方向部 7 3，是具備平面視縱長的長方形狀的縱本體7 3 a ’該縱本 體73a，是使橫方向部72的連結部72c側的一端部垂直連 結於相反的另一端部。與縱本體7 3 a的橫方向部7 2連結 的前端部相反的後端側’是具有寬度較窄’且可以插入被 設在底基2的座部支撐台32的左右兩側的冷卻液通路35( 第4圖參照）的內側的形狀。 -16- (14) 1307649Next, the upper structure of the base 2 will be described in detail. As shown in Fig. 4, the base 2 has a accommodating portion 20 integrally formed in a concave shape having an open upper surface. The accommodating portion 20 includes a bottom portion 21 which is formed in a rectangular shape extending in the Y-axis direction, and a peripheral plate 22 which is erected around the periphery of the bottom portion 21. The bottom portion 21 is inclined downward from the front side of the base 2 toward the rear slope. The peripheral plate 22 has a notch shape in which the lower side of the substrate is opened in the rear side of the base 2, and the lower side in the Y-axis direction is slightly rectangular. Thereby, the coolant which has scattered toward the inside of the protective baffle 3 and dropped into the accommodating portion 20 flows along the inclined surface of the bottom portion 21, and flows out of the base 2 from the rear of the base 2. The peripheral plate 22 as shown in Fig. 4 corresponds to "the side wall of the aforementioned base". Next, each member provided in the circumferential plate 22 will be described. As shown in Fig. 4, the upper end portion of the front plate 22 on the front side of the base 2 is provided with a pair of plate-shaped fixing plates 40 fixed at predetermined intervals and having a predetermined thickness, and a pair of fixings of 40 degrees. Each of the plates 40 and 40 has a fixing hole 40a that communicates with a screw hole (outside the drawing) that penetrates the circumferential plate 22 in the vertical direction. Each of the upper end portions of the peripheral plates 22 on the left and right sides of the base 2 has a pair of plate-shaped support plates 42 and 42 which are fixed at predetermined intervals and have a predetermined thickness. -12- (10) (10) 1307649 When the protective baffle 3 is fixed to the base 2, these fixing plates 40 and the support plates 42 are used. In the fixing plate 40, as shown in Figs. 1 and 9, the bracket 58 attached to the lower end portion of the front wall 3a of the protective flap 3 is fixed by a screw 68. As shown in FIG. 2 and FIG. 8 on the support plate 42, the cross section of the outer side surface provided in the vicinity of the lower end portion of the right bottom wall 3e (left bottom wall 3f) of the protective baffle 3 is slightly L-shaped. A piece of the support piece 1 1 2 of the shape. Thereby, the lower portion of the protective shutter 3 is supported on the support plate 42 of the peripheral plate 22. In this manner, the protective shutter 3 is attached to the base 2. Next, the structure of each member provided in the bottom part 21 is demonstrated. As shown in FIG. 4, the center portion between the left and right sides of the bottom portion 21 is provided with a substantially rectangular parallelepiped table support 24 for supporting the table 8 horizontally in the accommodating portion 20, and Formed integrally with the bottom 21. The table support base 24 is composed of a support frame body 25 having a substantially rectangular parallelepiped shape, and a pair of right support walls 26 and left support walls 28 which are vertically erected from the left and right end portions of the support base body 25, respectively. The cross section perpendicular to the longitudinal direction is a shape having a slightly concave shape. The front side, the right side and the left side of the table support 24, and the bottom portion 21 and the concave passage formed around the peripheral plate 22 serve as "discharge passages" for external use of the coolant out of the base 2. Next, the configuration having the table support 24 will be described. First, the configuration having the support base body 25 will be described. As shown in Fig. 4, the support base body 25 is provided with a pair of support block members 47, 47 on the upper rear side thereof. The support block member 47, 47' is a Y motor (other than the figure) for rotating the ball screw shaft (outside of the figure) of the Y-axis moving mechanism to be supported, and fixed for rotating the ball screw shaft. . The support base body 25 is provided on the front side of the -13-(11) (11) 1307649, and includes a pair of support block members 48, 48 for rotating the other end of the ball screw shaft to be possible. The support members 47 and 48 support various members constituting the Y-axis moving mechanism, and the Y-axis moving mechanism is disposed below the upper end portions of the pair of right support walls 26 and left support walls 28. Next, the configuration having the right support wall 26 and the left support wall 28 will be described. As shown in Fig. 4, each of the upper end portions of the right support wall 26 and the left support wall 28 is provided with a linear guide rail mounting surface for attaching to the Y-axis feed linear guide 30 (refer to Fig. 3). 2 7, 2 9. The corners of the inner sides of the linear guide mounting surfaces 27, 29 (the inner side of the table support 24) are protruded upward for positioning the Y-axis to feed the linear guides 30, and each has a convex shoulder. Part 27a '29a. Thereby, a pair of Y-axis feed linear guides 30 are attached to the linear guide mounting surfaces 27 and 29 from the inner side toward the outer side of the table support base 24, and the shoulder portions 27a and 29a can be abutted and positioned. The bottom portion 21 is provided behind the table support 24, and has a seat support table 32 which is formed in a state of rising from the bottom portion 21 and which is slightly Y-shaped when viewed from the front. The seat support base 32 is provided with a pair of pedestals on the left and right sides of the upper portion which are spaced apart from each other, that is, the pedestals which are slightly rectangular parallelepiped. Between the lower portion of the pillar base portions 4, 4 and the upper end portion of the peripheral plate, the lower side of the horizontal plate 34 of the planar trapezoidal shape is connected to the lower side of the horizontal plate 34, and the coolant falling in the accommodating portion 20 is removed from The both sides of the seat support base 32 are discharged toward the rear of the base 2 to form a channel-like coolant passage 35. Between the upper surface of the horizontal plate 34 and the outer side surface of the upper column seat portion 4 which is in contact with the upper surface of the horizontal 14-(12) (12) 1307649 plate 34, three ribs 45 for reinforcing the triangular shape are formed. It is juxtaposed at predetermined intervals. The seat support base 32 is provided between the pair of column base portions 4 and 4, and has an inclined portion 37 which is inclined downward from the upper rear side of the table support base 24 toward the rear side of the base 2. Thereby, the coolant falling on the upper surface of the support base body 25 flows along the inclined portion 37 and flows out toward the rear of the base 2. In the bottom portion 21 of the accommodating portion 20 having the above-described structure, as shown in Fig. 5, a pair of right-side chute members 70 and left-side chute members 80 which are formed in a plane having a substantially concave L-shaped trough are formed. . The pair of right side chute members 70 and left side chute members 80 are laid on the front side and the left and right sides of the table support 24. The right flow channel member 70 and the left flow channel member 80 are such that the coolant flows into the inside and leads to the rear of the substrate 2, and is a part of the labyrinth portion 60. Next, the configuration of the right flow channel member 70 and the left flow channel member 80 will be described. The pair of right side flow channel members 70 and left side flow channel members 80 shown in Fig. 5 are formed of a metal plate having smooth side faces. The right side flow channel member 70 is a horizontal direction portion 72 extending in the X-axis direction and a vertical direction portion extending in parallel with the Y-axis direction from one end portion of the lateral direction portion 72 in the longitudinal direction as shown in Fig. 6 . The structure "73" is a shape having a flat L-shape. Similarly to the left flow channel member 80, as shown in Fig. 5, the lateral direction portion 8 2 ' extending in the X-axis direction and the longitudinal direction extending from the one end portion in the longitudinal direction of the lateral direction portion 82 in parallel with the Y-axis direction The direction portion 83 is configured to have a shape having a plane-like L-shape as a whole. The right flow channel structure -15-(13) (13) 1307649 piece 70 and the left side flow channel member 80, most of which have a shape that is bilaterally symmetrical with each other, so the details of the right flow channel member 70 are described in detail. A brief description of the left chute member 80. The right side flow channel member 70 and the left side flow channel member 80 shown in Fig. 5 correspond to a "concave flow channel member". First, the lateral direction portion 72 will be described. As shown in Fig. 6, the lateral direction portion 72 has a rectangular horizontal body 72a' having a plan view and a horizontal length, and an end portion of the direction perpendicular to the longitudinal direction of the lateral body 72a has a predetermined width of the one end portion. The side wall portion 72b that is formed at a right angle is formed in a rectangular shape in which one end portion of the lateral direction portion 8 of the left side flow channel member 80 is connected in the longitudinal direction at the one end portion in the longitudinal direction. Part 72c. The connecting portion 72c' is provided with two fixing holes (outside the drawing) facing the fixing holes 85, 85 at one end portion of the lateral portion 82 of the left side chute member 80. Thus, the one end portion of the lateral direction portion 82 of the left side flow channel member 80 is superposed on the upper surface of the coupling portion 72c, and the screw 66 is communicably fitted and fitted to each of the fixing holes' by a nut (not shown) to the right side. The flow channel member and the left flow channel member 80 are coupled to each other. Next, the longitudinal direction portion 713 will be described. As shown in Fig. 6, the 'longitudinal direction portion 713' is a rectangular vertical body 7 3 a' having a plan view length, and the vertical body 73a is vertically connected to one end portion of the lateral direction portion 72 on the side of the connection portion 72c. On the opposite end. The rear end side 'opposite to the front end portion of the vertical body 733a that is coupled to the lateral direction portion 7 2 is a narrower width and can be inserted into the left and right sides of the seat support table 32 provided on the base 2 The shape of the inner side of the passage 35 (refer to Fig. 4). -16- (14) 1307649
垂直於縱本體73 a的長度方向的方向的外側一端部（ 橫方向部72側的相反側的一端部），是具備將該外側一端 部的預定寬略直角朝上方折返形成的側壁部73b。縱本體 7 3 a，是具備被固定於側壁部7 3 b的外側面且從縱本體7 3 a 的前端側朝向後端側漸漸變高的從側面看略三角形狀的側 壁部73c。側壁部73c，是在比其中間部稍靠近後端，具 有L字狀的缺口部76，從該缺口部76至後端部爲止的側 壁部73c的高度，是與底基2的前述冷卻液通路35的內 側的高度相同。 垂直於縱本體73a的長度方向的方向的內側一端部（ 橫方向部72側的一端部），是具備將該內側一端部的預定 寬略直角折返形成的側壁部7 3 d。縱本體7 3 a，是具備側 壁部73d的外側面的被固定於從該側壁部73d的前端側至 中間部爲止的部分的抵接側壁部7 3 e。抵接側壁部7 3 e， 是對於縱本體73a的面略直角立起，且其上端部是朝向縱 方向部73的外側折曲。 側壁部7 3 d的後端部，是在外側面具備比側壁部7 3 d 稍高的固定壁73f。此固定壁73f，是將固定壁73f與左側 流槽構件80的縱方向部83的後端部的固定壁83f(第5圖 參照）連結的連結構件90的長度方向一端部固定用。此固 定壁73f，是在後端部附近，具有供固定連結構件9〇用的 固定孔77。如第6圖所示的側壁部73c及抵接側壁部73e 是相當於「一對的側壁」’側壁部7 3 c是相當於「外側側 壁」’抵接側壁部7 3 e是相當於「內側側壁」 -17- (15) (15)1307649 橫方向部7 2的橫本體7 2 a的寬度，是比挾住底基2 的前側的周板2 2及工作台支撐台2 4的前面用的排出通路 的寬度更短。由此，如第9圖所示，在橫方向部72的側 壁部72b、及周板22之間會產生預定的間隙，利用該預定 的間隙，可以設置後述迷宮部60。藉由使橫方向部72從 周板2 2分離，可以防止流入橫方向部7 2內的冷卻液，從 周板22漏出。 縱方向部7 3的縱本體7 3 a的寬度，也比挾住底基2 的右側的周板2 2、及工作台支撐台2 4的右支撐壁2 6的外 側面用的排出通路的寬度更短。由此，如第8圖所示，在 縱方向部73的側壁部73c、及周板22之間會產生預定的 間隙，利用該預定的間隙，可以設置後述迷宮部60。藉由 使縱方向部73從周板22分離，可以防止流入縱方向部73 內的冷卻液，從周板22漏出。 接著，說明由上述構造組成的右側流槽構件7 0及左 側流槽構件80的底基2上的配設方法。如第5圖所示， 首先，使凹狀的右側流槽構件70的開放側朝向上方，且 覆蓋底基2的收納部20的底部21的右一半的方式配置右 側流槽構件70。這時，右側流槽構件70的縱方向部73的 後端部，是配置成插入底基2後方的隧道狀的冷卻液通路 3 5(第4圖參照）的內側。接著，使左側流槽構件80的開放 側朝向上方，且覆蓋底基2的收納部2 0的底部21的左一 半的方式配置左側流槽構件80。左側流槽構件80的縱方 向部83的後端部也同樣，配置成插入底基2的冷卻液通 -18- (16) (16)1307649 路35(第4圖參照）的內側。 如第6圖所示，將左側流槽構件80的橫方向部82的 相面對於右側流槽構件70的橫方向部72的一端部’配置 成重疊於右側流槽構件7 0的橫方向部7 2的連結部7 2 c的 上面。將螺釘6 6嵌入：左側流槽構件8 0的橫方向部8 2 的固定孔85、及右側流槽構件70的橫方向部72的連結部 72c的固定孔，並由螺帽（圖示外）固定。如此，相互連結 :右側流槽構件70的橫方向部72、及左側流槽構件8 0的 橫方向部8 2。 如第5圖所示，被固定於底基2的底部21的後端部 附近的剖面略L·字狀的連結構件9 〇，是連結：右側流槽 構件7〇的縱方向部73的後端部、及左側流槽構件8〇的 縱方向部83的後端部。此連結構件9〇，可伸縮自如，且 供與右側流槽構件7 0及左側流槽構件80 —起靠近底部2 1 上的略中央的工作台支撐台24側，並固定於底基2的底 部2 1上用。 在此’說明連結構件9 〇。如第7圖所示，連結構件 90 ’是由：剖面略L字型的第1連結構件9丨、及相同的 剖面略L字型的第2連結構件92所構成。第2連結構件 92，是與第1連結構件91的長度方向一端側的內側重疊 ，且沿者預定距離內由第1連結構件9丨的長度方向滑動 可能的狀態下被連結。 首先，第1連結構件91，是由：平面視帶狀的本體片 91a、及略直角設在垂直於該本體片91a的長度方向的方 -19- (17) (17)1307649 向的一端部之側片91b所構成’剖面是具有略L字型的形 狀。在第1連結構件9 1的與第2連結構件92連結側的一 端部的相反的另一端部，對於本體片9 1 a及側片9 1 b直角 地連結有長方形狀的固定片91c。固定片91c’是具有在 本體片91a的寬方向稍長的橢圓狀的固定孔97。本體片 9 1 a，是在前述第2連結構件9 2連結側的一端部附近’具 有沿著本體片9 1 a的長度方向直列並列的—對本體片9 1 a 的長度方向較長的橢圓狀的調整孔9 5、9 5。 第2連結構件92也同樣，由：平面視帶狀的本體片 92a、及略直角設在垂直於該本體片92a的長度方向的方 向的一端部之側片9 2 b所構成，剖面是具有略L字型的形 狀。在第2連結構件92的與第1連結構件91連結側的一 端部的相反的另一端部，對於本體片92a及側片92b直角 地連結有長方形狀的固定片92c。固定片92c ’是具有本 體片92a的寬方向稍長的橢圓狀的固定孔98。本體片92a ,是在與前述第1連結構件91連結側的一端部附近具有 一對的調整孔96、96，分別相對於第〗連結構件9 1的一 對的調整孔95、95。調整孔96、96，是具有本體片92a 的長度方向較長的橢圓形狀’沿著本體片92a的長度方向 呈直列並列。 接著，說明上述結構組成連結構件90的固定方法。 首先，如第5圖所示，將第1連結構件91的固定片91 c( 第7圖參照），由螺釘94及螺帽（圖示外）固定在左側流槽 構件8 0的縱方向部8 3的後端部的固定壁8 3 f。接著，將 (18) 1307649 第2連結構件92的固定片92c(第7圖參照），由螺 帽（圖示外）固定在右側流槽構件7〇的縱方向部的 部的固疋壁73f。進-步，在帛！連結構件91的前.. … 端側，重疊第2連結構件92的前述另—端側。接 -· 本體片9 1 a側的調整孔9 5、9 5、及本體片9 2 a側的調 96、96相對。 接者，將第1連結構件91及第2連結構件9 2， • 工作台支撐台24側。由此，右側流槽構件7〇的抵接 部7 3 e的上ϋ而，會抵接於工作台支撐台2 4的右支 2 6的外側面’左側流槽構件8 〇的抵接側壁部8 3 e的 - 部，會抵接於工作台支撐台24的左支撐壁28的外側 . 接著，對於被設在底基2的底部21的後端部附 固定孔23、23(第4圖參照），使第1連結構件91及 連結構件92的各調整孔95、96重疊並相面對。 對於這些調整孔9 5、9 6及固定孔2 3，分別由螺: φ 嵌合，使第1連結構件91及第2連結構件92連結成 線狀，並且將連結構件9 0固定於底基的底部2 1。 如此，將第1連結構件91及第2連結構件92, 於工作台支撐台24側的略中央，並固定於底基2的 21。由此，在右側流槽構件70的抵接側壁部73 e的 部 '及工作台支撐台24的右支撐壁26的外側面之間 沒有間隙。同樣地，在左側流槽構件8 0的抵接側壁晋 的上端部、及與工作台支撐台24的左支撐壁28的外 之間，也沒有間隙。右側流槽構件70的抵接側壁部 及螺 後端 .另一 ，使 整孔 靠近 側壁 撐壁 上端 面。 近的 .第2 釘99 一直 靠近 底部 上端 ，就 β 83e 側面 73e -21 - (19) (19)1307649 及左側流槽構件80的抵接側壁部73e，是分別成爲覆蓋工 作台支撐台24的右支撐壁26及左支撐壁28的兩外側面 的狀態。 藉由這種構造’從工作台8上飛散落下的冷卻液的大 部分，不會流入底基2上的收納部2 0內的排出通路，而 是可以流入右側流槽構件7〇及左側流槽構件80的內側。 如上述，因爲底基2是藉由將鑄鐵澆入鑄型一體成型’所 以其表面較粗，冷卻液中的切粉的容易卡住。但是’在本 實施例的加工中心1中’冷卻液的大部分，不會流入底基 2上的排出通路，而是可以流入表面平滑的右側流槽構件 7 〇及左側流槽構件8 0。由此’因爲切粉不會卡在右側流 槽構件70及左側流槽構件80的內側面，可以提高冷卻液 及切粉的排出性。 接著，說明本發明的特徵也就是迷宮部60的結構。 如第3圖所示的迷宮部6 0，是爲了防止冷卻液的漏出而設 置的迷路狀的通路。此迷宮部6〇’是各別存在於：底基2 的左右兩側的周板22的附近、及底基2的前側的周板22 的附近。因此’在以下的說明中，分別依序說明：底基2 的左右兩側的迷宮部60 '及底基2的前側的迷宮部60 ° 首先，說明構成於底基2的左右兩側的迷宮部60的 結構。底基2的右側的迷宮部6 0、及底基2的左側的迷宮 部60因爲是相互左右對稱的構造，所以由被設在底基2 的右側的周板2 2的附近的迷宮部6 0爲例說明。 如第8圖所示，保護擋板3的右底壁3 e，是從右側壁 -22- (20) (20)1307649 3b(第3圖參照）的下端部，朝向底基2的收納部20的內側 朝斜下方傾斜延伸，右底壁3 e的下端部，是從收納部20 的周板22的內側面稍分離。右底壁3e，是從其下端部朝 垂直下方延伸，並且先端部是具備與右側流槽構件7 0的 內側相面對的從側面看帶狀的延設片100°延設片100 ’ 是位置於比右側流槽構件70的側壁部73c稍內側。 傾斜的右底壁3 e，是在比下端部稍上側的外側面’具 備從側面看橫長的長方形狀的第2延設片1 1 〇。第2延設 片110，是沿著長度方向曲折預定寬度’上側的一片’是 固定於右底壁3 e的外側面’下側的其他片’是朝向周板 22的內側面及右側流槽構件70的側壁部73c的外側面之 間的間隙延伸。如第2圖或是第8圖所示，第2延設片 110,是在前述其他片的前端部附近及後端部附近的2處 ，固定於剖面略L字型的支撐片112。支撐片112’當將 保護擋板3安裝於底基2的上部時’將從支撑片112的第 2延設片11〇的外側面略水平延伸的一片’與固定於底基 2的周板22的上端部的各支擦板42的上面抵接（第2圖參 照）。 上述結構中，右側流槽構件70的側壁部73c，是位置 於從右底壁3e的下部分別朝下方延伸的一對的第1延設 片及第2延設片11〇之間的間隙。藉此’由.弟1延 設片100、及右底壁3 e的外側面 '及右側流槽構件70的 個!壁@ 73c、及第2延設片110所構成的通路因爲是成爲 迷路狀，所以可以構成迷宮部60。如第8圖所示的第1延 -23- (21) 1307649 設片100及第2延設片110’是相當於「叉部」。 此迷宮部60，是位在右側流槽構件70的內側 板2 2的上端部及右底壁3 e的外側面之間的間隙之 此，冷卻液可勢力佳地流動於右側流槽構件7 0內 越過右側流槽構件70的側壁部73c，藉由與構成此 6 〇的壁面接觸就可以減弱冷卻液的威勢。藉此’可 冷卻液越過周板22的上端部，漏出底基2外。 接著，說明被設在底基2的前側的迷宮部60 。如第9圖所示，保護擋板3的前壁3a的下端部 收納於底基2的前側的周板22更後方。前壁3a ’ 側面的下端部附近，被固定於沿著該下端部附近延 略L字型的托架58。從托架58的前壁3a略水平延 片，是與被固定於底基2的前側的周板22的上端 固定板40抵接，藉由與托架58的固定孔（圖示外） 定板40的固定孔4〇a(第4圖參照）嵌合的螺釘68固 前壁3 a的下端部，是具備沿著下端部延伸的 L字型的第1延設片120。第1延設片120，是由 120a及延設部120b所構成，剖面是具有略L字型 。固定部120a是固定於前壁3a的下端部，延設吾 是朝向垂直下方（底基2的收納部2 0)延伸。延設吾 的先端部（下端部），是朝右側流槽構件70的側壁部 內側面朝稍後方分離。在第1延設片120a中，從 延設片1 20a的外側面朝下方延伸，並且固定有沿 3a的下端部的長度方向延伸的第2延設片121。 、及周 間。由 ，即使 迷宮部 以防止 的結構 ，是被 是在外 伸剖面 伸的一 部的各 、及固 定。 剖面略 固定部 的形狀 12 0b B 12 0b 72b的 該第1 著前壁 -24- (22) (22)1307649 上述結構中，右側流槽構件7 0的側壁部7 2 b，是位置 於分別從前壁3 a的下端部朝下方延伸的一對第1延設片 1 20的延設部1 20b、及第2延設片1 2 1之間的間隙。藉此 ，藉由剖面略L字狀的第1延設片120的延設部120b、 及右側流槽構件7〇的側壁部72b、及第2延設片121形成 的通路是成爲迷路狀，可以構成迷宮部6〇。 此迷宮部60，是位在右側流槽構件70的內側、及周 板22的內側面及前壁3 a的外側面之間的間隙之間。因此 ，例如，冷卻液可勢力佳地流動於右側流槽構件7 0內， 即使越過右側流槽構件7 〇的側壁部7 2 b ’藉由接觸構成此 迷宮部60的壁面就可以減弱冷卻液的威勢。 藉此，可以防止冷卻液從周板22的上部越過’朝底 基2外漏出。 如以上說明，本實施例的加工中心1，是在被設在底 基2上的凹狀的收納部2 0的底部2 1、及保護擋板3的下 部之間，具備迷路狀的迷宮部6 0即本發明的特徵。例如 ，即使冷卻液勢力佳地流動於被設在底基2的收納部2 0 的內側的排出通路內’也可藉由此迷宮部6 0 ’減弱冷卻液 的威勢。藉此，可以防止收納部20內的冷卻液越過底基2 的周板2 2漏出底基外。 本實施例的加工中心1，是在底基2的收納部2 〇的底 部2 1，各具備右側流槽構件70及左側流槽構件80。由此 ，從工作台8上飛散的落下冷卻液的大部分’不會流入收 納部20內的排出通路，而可以流入右側流槽構件7〇及左 -25- (23) (23)1307649 側流槽構件8 0的內側朝流底基2外排出。而且，右側流 槽構件7 0及左側流槽構件8 0的內側面因爲平滑，所以切 粉不會卡在那些內側面，可以更提高冷卻液及切粉的排出 性。 藉由利用這些右側流槽構件70及左側流槽構件8 0的 各側壁部，就可以容易構成前述迷宮部60。例如，可以容 易由從收納部2 0的底部2 1側朝上方延伸的右側流槽構件 7〇的側壁部73c、及右底壁3e的外側面、及分別從右底 壁3e的外側面朝向收納部20的底部21側延伸的第1延 設片1〇〇及第2延設片110構成。 如此，收納部20的底部21、及保護擋板3的下部之 間的間隙不是由習知的密封墊閉塞，而是設成迷路狀的迷 宮部60。由此，在迷宮部60內，可能會卡住切粉的障礙 物或突起物不存。藉此，可以防止切粉堆積於收納部20 的底部2 1、及保護擋板3的下部之間的間隙。進一步，不 需使用供固定密封墊用的金屬板、或供固定該金屬板用的 螺釘或螺帽，沒有安裝作業的勞力和時間，進一步也可以 那些節約零件的成本。 本發明的工作機械，不限定於上述實施例，可進行各 種的變形。例如，可以改變迷宮部6 0的構成要素的配置 。在上述實施例中，如圖8所示，在被設在右底壁3e的 下端部的第1延設片1〇〇、及固定於右底壁3e的下端部附 近的外側面的第2延設片1 1 0之間，藉由配置右側流槽構 件70的側壁部73c，構成迷宮部60。 -26- (24) 1307649 在此，如第1 〇圖所示的變形例1，將右側流槽 7〇的側壁部73c，不是配置於第1延設片100及第2 片1 1 〇之間，而是配置於比第1延設片1 〇〇更內側來 - 迷宮部160也可以。即使這種迷宮部160，也可以形 . 路狀的通路。 其他，如第11圖所示的變形例2，在底基2的收 2〇 ’使從底部21立起朝上方延伸的底基側延設片29 φ 周板22設置也可以。可將此底基側延設片29的上端 被挾持於第1延設片100及第2延設片110之間的方 成迷路狀的迷宮部260。此情況，藉由使底基側延設/ ' 與底基2的收納部20 —體成型，就可以容易構成迷 260 ° 在上述實施例中，「叉部」，雖設置第1延設片 及第2延設片110，但是省略第2延設片110的迷宮 可以。 【圖式簡單說明】 [第1圖]加工中心1的立體圖。 [第2圖]加工中心1的右側視圖。 [第3圖]如第2圖所示的A-A線箭頭方向剖面圖 [第4圖]底基2的立體圖（沒有右側流槽構件70 , 側流槽構件8 0 )。 [第5圖]底基2的立體圖（具有右側流槽構件70 側流槽構件80)。 構件 延設 構成 成迷 納部 沿著 部， 式構 ί 29 宮部 100 部也 、左 、左 -27- (25) 1307649 [第6圖]右側流槽構件7 0的立體圖。 [第7圖]連結構件90的立體圖。 [第8圖]顯示底基2的右側的周板22附近的迷呂部 -. 6〇的結構的底基2的上部右側周邊的橫剖面圖。 -· [第9圖]顯示底基2的前側的周板22附泜的迷呂部 6 0的結構的底基2的上部前側周邊的縱剖面圖。 [第10圖]顯示變形例丨也就是迷宮部160的結構之底 % 基2的上部右側周邊的橫剖面圖。 [第11圖]顯示變形例2也就是迷宮部26〇的結構之底 基2的上部右側周邊的橫剖面圖。 - 【主要元件符號說明】 1 :加工中心 2 :底基 2a :腳部 • 3 :保護擋板 3a :前壁 3 b :右側壁 3 e :左側壁 3d :天壁 3e :右底壁 3f :左底壁 3g :右背壁 3h :左背壁 -28- (26) (26)1307649 4 :立柱座部 5 :立柱 6 :刀具交換裝置（ATC) 7 :主軸 8 :工作台 9 :控制箱 1 〇 :開口部 1 1 :開閉門 1 1 a :把手部 1 2 :操作盤 1 4 :開口部 15 :保護擋板側蓋（檢點艙口） 1 6 :警告報知燈泡 1 7、1 8 :蓋 2 〇 :收納部 2 1 :底部 22 :周板 2 3 :固定孔 24 :工作台支撐台 25 :支撐台本體 2 6 ·‘右支撐壁 2 7、2 9 :線性導軌安裝面 27a 、 29a :肩部 28 :左支撐壁 -29 (27) (27)1307649 3 0 : Y軸送出線性導軌 32 :支撐台 3 4 :水平板 3 5 :冷卻液通路 3 7 :傾斜部 4 0 :固定板 40a :固定孔 4 2 :支撐板 45 :肋 47 :支撐塊件 48 :支撐塊件 50 :移動體 5 2、5 3 :伸縮護板 54 :伸縮護板 58 :托架 60 :迷宮部 6 6 :螺釘 6 8 :螺釘 70 :右側流槽構件 72 :橫方向部 7 2 a :橫本體 72b :側壁部 72c :連結部 7 3 :縱方向部 -30 1307649 (28) 73a :縱本體 7 3 b :側壁部 73c :側壁部 • 73d :側壁部 • 7 3 e :抵接側壁部 73f :固定壁 76 :缺口部 g 7 7 :固定孔 8 0 :左側流槽構件 8 2 :橫方向部 - 83 :縱方向部 _ 8 3 e :抵接側壁部 83f :固定壁 8 5 :固定孔 9 0 :連結構件 φ 9 1 :第1連結構件 91 a :本體片 9 1 b :側片 91c :固定片 92 :第2連結構件 92a :本體片 92b :側片 92c :固定片 94 :螺釘 -31 1307649 (29) 9 5 :調整孔 96 :調整孔 9 7 :固定孔 • 9 8 :固定孔 . 9 9 :螺釘 100 :第1延設片 1 1 0 :第2延設片 _ 112 :支撐片 120 :第1延設片 1 2 0 a :固定部 . 1 20a :第1延設片 _ 1 2 0 b :延設部 121 :第2延設片 160 :迷宮部 260 :迷宮部 -32The outer end portion (the one end portion on the side opposite to the side of the lateral portion 72) perpendicular to the longitudinal direction of the vertical body 73a is provided with a side wall portion 73b formed by folding the predetermined one end of the outer end portion upward at a predetermined right angle. The vertical body 7 3 a is provided with a side wall portion 73c which is fixed to the outer side surface of the side wall portion 733b and which is gradually increased from the front end side toward the rear end side of the vertical main body 733a. The side wall portion 73c has an L-shaped notch portion 76 slightly closer to the rear end than the intermediate portion thereof, and the height of the side wall portion 73c from the notch portion 76 to the rear end portion is the coolant of the base 2 The height of the inner side of the passage 35 is the same. The inner end portion (the one end portion on the lateral direction portion 72 side) perpendicular to the longitudinal direction of the vertical body 73a is provided with a side wall portion 733d formed by folding back the predetermined one end of the inner end portion at a substantially right angle. The vertical body 723a is a contact side wall portion 733 e that is fixed to a portion from the front end side to the intermediate portion of the side wall portion 73d on the outer surface of the side wall portion 73d. The abutting side wall portion 7 3 e is raised at a right angle to the surface of the vertical body 73a, and the upper end portion thereof is bent outward toward the longitudinal direction portion 73. The rear end portion of the side wall portion 633d has a fixed wall 73f slightly higher than the side wall portion 733d on the outer side surface. In the fixed wall 73f, one end portion of the connecting member 90 that is connected to the fixed wall 83f (see FIG. 5) of the rear end portion of the vertical portion 83 of the left side flow channel member 80 is fixed at one end in the longitudinal direction. The fixing wall 73f has a fixing hole 77 for fixing the connecting member 9 in the vicinity of the rear end portion. The side wall portion 73c and the abutting side wall portion 73e shown in Fig. 6 correspond to "a pair of side walls". The side wall portion 7 3 c corresponds to the "outer side wall" and the abutting side wall portion 7 3 e is equivalent to " The inner side wall -17- (15) (15) 1307649 The width of the lateral body 7 2 a of the lateral direction portion 7 2 is larger than the front surface of the front side of the base 2 and the front side of the table support 2 2 The width of the discharge passage used is shorter. As a result, as shown in Fig. 9, a predetermined gap is formed between the side wall portion 72b of the lateral direction portion 72 and the peripheral plate 22, and the labyrinth portion 60 to be described later can be provided by the predetermined gap. By separating the lateral direction portion 72 from the peripheral plate 2 2, it is possible to prevent the coolant flowing into the lateral direction portion 7 2 from leaking from the peripheral plate 22. The width of the vertical body 735a of the longitudinal direction portion 713 is also larger than the discharge passage for the outer side surface of the right side support wall 26 of the table support base 24, which is sandwiched between the right side of the base 2 The width is shorter. As a result, as shown in Fig. 8, a predetermined gap is formed between the side wall portion 73c of the longitudinal direction portion 73 and the peripheral plate 22, and the labyrinth portion 60 to be described later can be provided by the predetermined gap. By separating the longitudinal direction portion 73 from the circumferential plate 22, it is possible to prevent the coolant flowing into the longitudinal direction portion 73 from leaking from the circumferential plate 22. Next, a method of disposing the right side flow channel member 70 and the left side flow channel member 80 of the above configuration will be described. As shown in Fig. 5, first, the right side flow channel member 70 is disposed such that the open side of the concave right side flow channel member 70 faces upward and the right half of the bottom portion 21 of the storage portion 20 of the base 2 is covered. At this time, the rear end portion of the longitudinal direction portion 73 of the right side flow channel member 70 is disposed inside the tunnel-shaped coolant passage 35 (refer to FIG. 4) which is inserted into the rear of the base 2. Next, the left side flow channel member 80 is disposed such that the open side of the left flow channel member 80 faces upward and covers the left half of the bottom portion 21 of the storage portion 20 of the base 2. Similarly, the rear end portion of the vertical direction portion 83 of the left side chute member 80 is disposed so as to be inserted into the inside of the coolant passage -18-(16) (16) 1307649 path 35 (refer to Fig. 4) of the base 2. As shown in Fig. 6, the phase of the lateral direction portion 82 of the left flow channel member 80 is disposed so as to overlap the one end portion ' of the lateral direction portion 72 of the right flow channel member 70 so as to overlap the lateral portion of the right flow channel member 70. The upper surface of the joint portion 7 2 c of 7 2 . The screw 66 is fitted into a fixing hole 85 of the lateral direction portion 8 2 of the left flow channel member 80 and a fixing hole of the coupling portion 72c of the lateral direction portion 72 of the right flow channel member 70, and is provided by a nut (not shown )fixed. In this manner, the lateral direction portion 72 of the right flow channel member 70 and the lateral direction portion 8 of the left flow channel member 80 are connected to each other. As shown in Fig. 5, the L-shaped connecting member 9 is fixed to the vicinity of the rear end portion of the bottom portion 21 of the base 2, and is connected to the rear side of the vertical flow portion 73 of the right flow channel member 7A. The end portion and the rear end portion of the longitudinal direction portion 83 of the left side flow channel member 8A. The connecting member 9 is retractable, and is provided on the side of the table support 24 on the bottom portion of the bottom portion 2 1 together with the right flow channel member 70 and the left flow channel member 80, and is fixed to the base 2 Used on the bottom 2 1 . Here, the joint member 9 说明 will be described. As shown in Fig. 7, the connecting member 90' is composed of a first connecting member 9A having a substantially L-shaped cross section and a second connecting member 92 having a substantially L-shaped cross section. The second connecting member 92 is overlapped with the inner side of the one end side in the longitudinal direction of the first connecting member 91, and is coupled to the longitudinal direction of the first connecting member 9A within a predetermined distance. First, the first connecting member 91 is formed by a flat viewing strip-shaped main body piece 91a and a slightly right angle at one end portion of a square -19-(17) (17) 1307649 which is perpendicular to the longitudinal direction of the main body piece 91a. The side piece 91b constitutes a 'section having a slightly L-shaped shape. A rectangular fixing piece 91c is connected to the main piece 9 1 a and the side piece 9 1 b at right angles to the other end portion of the first connecting member 9 1 opposite to the one end portion on the side where the second connecting member 92 is connected. The fixing piece 91c' is an elliptical fixing hole 97 having a slightly longer length in the width direction of the main piece 91a. The main body piece 9 1 a has an ellipse which is long in the longitudinal direction of the main body piece 9 1 a in the vicinity of the one end portion on the side where the second connecting member 9 2 is coupled. Shaped adjustment holes 9 5, 9 5 . Similarly, the second connecting member 92 is composed of a planar viewing strip-shaped main body piece 92a and a side piece 9 2 b which is provided at one end portion which is perpendicular to the longitudinal direction of the main body piece 92a. Slightly L-shaped shape. A rectangular fixing piece 92c is connected to the main body piece 92a and the side piece 92b at right angles to the other end portion of the second connecting member 92 opposite to the one end portion on the side where the first connecting member 91 is connected. The fixing piece 92c' is an elliptical fixing hole 98 having a slightly longer width direction of the body piece 92a. The main body piece 92a has a pair of adjustment holes 96 and 96 in the vicinity of one end portion on the side connected to the first connection member 91, and a pair of adjustment holes 95 and 95 with respect to the first connection member 9 1 . The adjustment holes 96 and 96 are elliptical in shape having a long length in the longitudinal direction of the main body piece 92a and are juxtaposed in the longitudinal direction of the main body piece 92a. Next, a method of fixing the structural component connecting member 90 will be described. First, as shown in Fig. 5, the fixing piece 91c (refer to Fig. 7) of the first connecting member 91 is fixed to the longitudinal direction of the left side flow channel member 80 by a screw 94 and a nut (not shown). The fixed wall 8 3 f of the rear end portion of 8 3 . Next, the fixing piece 92c (refer to FIG. 7) of the second connecting member 92 of (18) 1307649 is fixed to the fixing wall 73f of the portion of the right side flow channel member 7A in the longitudinal direction by a nut (not shown). . In-step, in the yo! The front end side of the connecting member 91 overlaps the other end side of the second connecting member 92. The adjustment holes 9 5 and 9 5 on the side of the body piece 9 1 a and the adjustments 96 and 96 on the side of the body piece 9 2 a face each other. The first connecting member 91 and the second connecting member 9 2 are provided on the side of the table support 24 . Thereby, the upper side of the abutting portion 7 3 e of the right flow channel member 7 抵 abuts against the abutting side wall of the left side flow channel member 8 的 of the outer side surface 26 of the right support 26 of the table support table 24 The portion of the portion 8 3 e abuts against the outer side of the left support wall 28 of the table support 24 . Next, the fixing holes 23 , 23 are attached to the rear end portion of the bottom portion 21 provided on the base 2 (fourth Referring to the drawing, the adjustment holes 95 and 96 of the first connecting member 91 and the connecting member 92 are overlapped and face each other. The adjustment holes 9 5 and 9 6 and the fixing holes 2 3 are respectively fitted by a screw: φ, and the first connecting member 91 and the second connecting member 92 are connected in a line shape, and the connecting member 90 is fixed to the base. The bottom of the 2 is 1. In this manner, the first connecting member 91 and the second connecting member 92 are fixed to the base 21 of the base 2 at a slight center on the side of the table support base 24. Thereby, there is no gap between the portion ' of the right side flow channel member 70 that abuts against the side wall portion 73e and the outer side surface of the right support wall 26 of the table support base 24. Similarly, there is no gap between the upper end portion of the left side flow channel member 80 abutting the side wall and the outer side of the left support wall 28 of the table support table 24. The right side flow channel member 70 abuts the side wall portion and the screw rear end. The other is to bring the entire hole closer to the upper end surface of the side wall support wall. The second nail 99 is always close to the upper end of the bottom, and the side surface 73e - 21 - (19) (19) 1307649 of the β 83e and the abutting side wall portion 73e of the left flow channel member 80 are respectively covered to cover the table support table 24. The state of both outer side faces of the right support wall 26 and the left support wall 28. Most of the coolant that has been scattered from the table 8 by such a structure does not flow into the discharge passage in the accommodating portion 20 on the base 2, but can flow into the right flow channel member 7 and the left flow. The inside of the groove member 80. As described above, since the base 2 is integrally molded by pouring the cast iron into the mold, the surface of the base 2 is relatively thick, and the cut powder in the cooling liquid is easily caught. However, most of the coolant in the machining center 1 of the present embodiment does not flow into the discharge passage on the base 2, but can flow into the right-side chute member 7 〇 and the left-side chute member 80 having a smooth surface. Therefore, since the cut powder does not get caught on the inner side surfaces of the right side chute member 70 and the left side chute member 80, the discharge property of the coolant and the cut powder can be improved. Next, the feature of the present invention, that is, the structure of the labyrinth portion 60 will be described. The labyrinth portion 60 shown in Fig. 3 is a labyrinth passage provided to prevent leakage of the coolant. The labyrinth portion 6〇' is present in the vicinity of the peripheral plate 22 on the left and right sides of the base 2 and in the vicinity of the peripheral plate 22 on the front side of the base 2. Therefore, in the following description, the labyrinth portion 60' on the left and right sides of the base 2 and the labyrinth portion 60 on the front side of the base 2 will be described in order. First, the labyrinths formed on the left and right sides of the base 2 will be described. The structure of the portion 60. Since the labyrinth portion 60 on the right side of the base 2 and the labyrinth portion 60 on the left side of the base 2 are bilaterally symmetrical, the labyrinth portion 6 provided in the vicinity of the peripheral plate 2 2 on the right side of the base 2 is provided. 0 is an example. As shown in Fig. 8, the right bottom wall 3e of the protective shutter 3 is a accommodating portion from the lower end portion of the right side wall -22-(20) (20) 1307649 3b (refer to FIG. 3) toward the base 2. The inner side of the 20 is inclined obliquely downward, and the lower end portion of the right bottom wall 3 e is slightly separated from the inner side surface of the peripheral plate 22 of the accommodating portion 20. The right bottom wall 3e extends vertically downward from the lower end portion thereof, and the tip end portion is provided with a strip-shaped extending piece facing the side of the right side flow channel member 70, and the extending piece 100' is The position is slightly inside than the side wall portion 73c of the right flow channel member 70. The inclined right bottom wall 3e is a rectangular second extending piece 1 1 具 having a horizontally long side as viewed from the side on the outer side surface slightly above the lower end portion. The second extended piece 110 is a piece that is bent along the longitudinal direction by a predetermined width 'the upper side' is a lower side that is fixed to the lower side of the outer side surface 3 e of the right bottom wall 3 e is toward the inner side surface of the peripheral plate 22 and the right side flow groove A gap between the outer side faces of the side wall portions 73c of the member 70 extends. As shown in Fig. 2 or Fig. 8, the second extension piece 110 is fixed to the support piece 112 having a slightly L-shaped cross section at two places in the vicinity of the front end portion and the vicinity of the rear end portion of the other piece. When the protective sheet 3 is attached to the upper portion of the base 2, the support piece 112' is a piece which is slightly horizontally extended from the outer side surface of the second extended piece 11' of the support piece 112, and a peripheral plate fixed to the base 2. The upper surface of each of the wipers 42 at the upper end portion of the 22 is abutted (see FIG. 2). In the above configuration, the side wall portion 73c of the right side flow channel member 70 is located at a gap between the pair of first extension pieces and the second extension piece 11b extending downward from the lower portion of the right bottom wall 3e. . Therefore, the passage formed by the "outer side surface of the right side of the right side wall 3 e and the outer wall 3 of the right side wall member 70" and the second extension piece 110 is a lost path. Therefore, the labyrinth portion 60 can be formed. The first extension -23-(21) 1307649 and the second extension piece 110' shown in Fig. 8 correspond to the "fork portion". The labyrinth portion 60 is a gap between the upper end portion of the inner side plate 2 2 of the right side chute member 70 and the outer side surface of the right bottom wall 3 e, and the coolant can flow favorably to the right side chute member 7 The side wall portion 73c of the right side flow channel member 70 is crossed in 0, and the power of the coolant can be weakened by the contact with the wall surface constituting the 6 〇. Thereby, the coolant can pass over the upper end portion of the peripheral plate 22 and leak out of the base 2. Next, the labyrinth portion 60 provided on the front side of the base 2 will be described. As shown in Fig. 9, the lower end portion of the front wall 3a of the protective shutter 3 is housed further behind the peripheral plate 22 on the front side of the base 2. The vicinity of the lower end portion of the side surface of the front wall 3a' is fixed to the bracket 58 extending in the L shape along the vicinity of the lower end portion. The horizontally extending piece from the front wall 3a of the bracket 58 is abutted against the upper end fixing plate 40 of the peripheral plate 22 fixed to the front side of the base 2, and is fixed by a fixing hole (not shown) with the bracket 58. The screw 68 fitted to the fixing hole 4A of the plate 40 (refer to FIG. 4) is a lower end portion of the front wall 3a, and is provided with an L-shaped first extension piece 120 extending along the lower end portion. The first extension piece 120 is composed of 120a and the extension portion 120b, and has a slightly L-shaped cross section. The fixing portion 120a is fixed to the lower end portion of the front wall 3a, and extends so as to extend vertically downward (the housing portion 20 of the base 2). The leading end portion (lower end portion) of the extending portion is separated toward the rear side toward the inner side surface of the side wall portion of the right side chute member 70. In the first extension piece 120a, the second extension piece 121 extending in the longitudinal direction of the lower end portion of the 3a is fixed downward from the outer side surface of the extension piece 120a. And week. Therefore, even if the labyrinth is constructed to prevent it, it is fixed and stretched in one part of the extension section. The shape of the slightly fixed portion 12 0b B 12 0b 72b of the first front wall - 24 - (22) (22) 1307649 In the above structure, the side wall portion 7 2 b of the right flow channel member 70 is in position A gap between the extending portion 1 20b of the pair of first extension pieces 1 20 and the second extension piece 1 21 extending downward from the lower end portion of the front wall 3 a. Thereby, the passage formed by the extended portion 120b of the first extension piece 120 having a slightly L-shaped cross section, the side wall portion 72b of the right side flow channel member 7A, and the second extended piece 121 is lost. The labyrinth portion 6〇 can be constructed. The labyrinth portion 60 is located between the inner side of the right side runner member 70 and the gap between the inner side surface of the peripheral panel 22 and the outer side surface of the front wall 3a. Therefore, for example, the coolant can flow favorably in the right flow channel member 70, even if the side wall portion 7 2 b ' of the right flow channel member 7 is passed, the coolant can be weakened by contacting the wall surface constituting the labyrinth portion 60. The power. Thereby, it is possible to prevent the coolant from leaking out of the upper portion of the peripheral plate 22 toward the outside of the base 2. As described above, the machining center 1 of the present embodiment has a labyrinth portion that is lost between the bottom portion 21 of the concave housing portion 20 provided on the base 2 and the lower portion of the protective shutter 3. 60 is a feature of the present invention. For example, even if the coolant force flows well in the discharge passage provided inside the accommodating portion 20 of the base 2, the momentum of the coolant can be weakened by the labyrinth portion 60. Thereby, it is possible to prevent the coolant in the accommodating portion 20 from leaking out of the substrate beyond the peripheral plate 2 2 of the base 2. The machining center 1 of the present embodiment includes a right side chute member 70 and a left side chute member 80 in the bottom portion 2 of the accommodating portion 2 of the base 2. As a result, most of the falling coolant that has scattered from the table 8 does not flow into the discharge passage in the accommodating portion 20, and can flow into the right chute member 7 左 and the left -25 - (23) (23) 1307649 side. The inside of the flow channel member 80 is discharged to the outside of the flow substrate 2. Further, since the inner side surfaces of the right side chute member 70 and the left side chute member 80 are smooth, the cut powder is not caught on the inner side surfaces, and the discharge of the coolant and the cut powder can be further improved. By using the side wall portions of the right flow channel member 70 and the left flow channel member 80, the labyrinth portion 60 can be easily formed. For example, the side wall portion 73c of the right side flow channel member 7A extending from the bottom portion 21 side of the accommodating portion 20, and the outer side surface of the right bottom wall 3e and the outer side surface of the right bottom wall 3e can be easily faced. The first extended piece 1A and the second extended piece 110 extending from the bottom portion 21 side of the accommodating portion 20 are configured. As described above, the gap between the bottom portion 21 of the accommodating portion 20 and the lower portion of the protective baffle 3 is not closed by a conventional gasket, but is provided in a labyrinth portion 60. As a result, in the labyrinth portion 60, obstacles or protrusions that may catch the powder may not be present. Thereby, it is possible to prevent the cut powder from being deposited on the bottom portion 21 of the accommodating portion 20 and the gap between the lower portions of the protective baffle 3. Further, it is not necessary to use a metal plate for fixing the gasket or a screw or a nut for fixing the metal plate, and there is no labor and time for installation work, and further, the cost of parts can be saved. The working machine of the present invention is not limited to the above embodiment, and various modifications can be made. For example, the arrangement of the constituent elements of the labyrinth portion 60 can be changed. In the above embodiment, as shown in Fig. 8, the first extended piece 1'' provided at the lower end portion of the right bottom wall 3e and the 2nd outer side surface which is fixed to the lower end portion of the right bottom wall 3e are 2nd. The labyrinth portion 60 is formed by arranging the side wall portion 73c of the right side runner member 70 between the extension sheets 110. -26- (24) 1307649 Here, as in the first modification shown in Fig. 1, the side wall portion 73c of the right side flow groove 7 is not disposed in the first extension piece 100 and the second piece 1 1 In the meantime, it is disposed on the inner side of the first extension piece 1 - - the labyrinth portion 160 may be used. Even in the labyrinth portion 160, a path-like passage can be formed. In the second modification shown in Fig. 11, the base side extension piece 29 φ the peripheral plate 22 extending upward from the bottom portion 21 may be provided in the receiving portion 2 of the base 2 . The labyrinth portion 260 in which the upper end of the base side extension piece 29 is held between the first extension piece 100 and the second extension piece 110 can be held. In this case, by forming the base side extension/' with the housing portion 20 of the base 2, it is possible to easily form the 260 °. In the above embodiment, the "fork" is provided, and the first extension piece is provided. And the second extension piece 110, but the labyrinth of the second extension piece 110 may be omitted. [Simplified illustration of the drawings] [Fig. 1] A perspective view of the machining center 1. [Fig. 2] Right side view of the machining center 1. [Fig. 3] A-A line arrow direction cross-sectional view as shown in Fig. 2 [Fig. 4] A perspective view of the base 2 (without the right flow channel member 70 and the side flow channel member 80). [Fig. 5] A perspective view of the base 2 (having the right flow channel member 70 side flow channel member 80). The structure of the right side of the streamer member 70 is formed by the extension of the component, which is formed as a part of the fascia, and is composed of 100 parts of the uterus, left, and left -27-(25) 1307649 [Fig. 6]. [Fig. 7] A perspective view of the joint member 90. [Fig. 8] A cross-sectional view showing the upper right side periphery of the base 2 of the structure of the ruthenium portion in the vicinity of the peripheral plate 22 on the right side of the base 2. - [Fig. 9] A longitudinal cross-sectional view showing the vicinity of the upper front side of the base 2 of the structure of the fascia 60 of the front side of the base 2 of the base 2. [Fig. 10] A cross-sectional view showing a modification, that is, a structure of the labyrinth portion 160, which is the bottom right portion of the upper base 2 of the structure. [Fig. 11] A cross-sectional view showing the periphery of the upper right side of the base 2 of the structure of the second embodiment, which is the labyrinth portion 26A. - [Main component symbol description] 1 : Machining center 2 : Substrate 2a : Foot • 3 : Protective baffle 3a : Front wall 3 b : Right side wall 3 e : Left side wall 3d : Sky wall 3e : Right bottom wall 3f : Left bottom wall 3g: Right back wall 3h: Left back wall -28- (26) (26) 1307649 4: Column seat 5: Column 6: Tool changer (ATC) 7: Spindle 8: Table 9: Control box 1 〇: Opening 1 1 : Opening and closing door 1 1 a : Handle 1 2 : Operation panel 1 4 : Opening 15 : Protective bezel side cover (checking hatch) 1 6 : Warning notification lamp 1 7 , 1 8 : Cover 2 〇: accommodating portion 2 1 : bottom 22 : peripheral plate 2 3 : fixing hole 24 : table support table 25 : support table body 2 6 · 'right support wall 2 7 , 2 9 : linear guide mounting surfaces 27a , 29a : shoulder 28 : left support wall -29 (27) (27) 1307649 3 0 : Y-axis feed linear guide 32 : support table 3 4 : horizontal plate 3 5 : coolant passage 3 7 : inclined portion 4 0 : fixed plate 40a: fixing hole 4 2 : support plate 45 : rib 47 : support block 48 : support block 50 : moving body 5 2, 5 3 : telescopic cover 54 : telescopic cover 58 : bracket 60 : labyrinth 6 6 : Screw 6 8 : Screw 70 : Right flow channel member 72 : Horizontal Part 7 2 a : Cross body 72b : Side wall portion 72 c : Connection portion 7 3 : Longitudinal portion -30 1307649 (28) 73a : Vertical body 7 3 b : Side wall portion 73c : Side wall portion • 73d : Side wall portion • 7 3 e : abutting side wall portion 73f : fixing wall 76 : notch portion g 7 7 : fixing hole 80 : left side flow channel member 8 2 : lateral direction portion - 83 : longitudinal direction portion _ 8 3 e : abutting side wall portion 83f : fixed Wall 8 5 : fixing hole 90 0 : connecting member φ 9 1 : first connecting member 91 a : body piece 9 1 b : side piece 91 c : fixing piece 92 : second connecting member 92 a : body piece 92 b : side piece 92 c : Fixing piece 94: Screw-31 1307649 (29) 9 5 : Adjustment hole 96: Adjustment hole 9 7 : Fixing hole • 9 8 : Fixing hole. 9 9 : Screw 100 : 1st extension piece 1 1 0 : 2nd extension Sheet _ 112 : Support piece 120 : 1st extension piece 1 2 0 a : fixing part. 1 20a : 1st extension piece _ 1 2 0 b : Extension part 121: 2nd extension piece 160: labyrinth part 260: Labyrinth - 32