200936295 六、發明說明： 【發明所屬之技術領域】 本發明係有Hji賴械㈣轉分度裝置，林對 的迴轉驅動物件提供電力、流體壓的迴轉接頭。 观勒 【先前技術】 右用ίΐΐί1公ΐ了在戶斤謂機械加卫中心等的工作機械中，且 ❹ ，二A軸驅動部作為驅動源具有 1置的 但主軸單元還内設有驅動馬達（ ^另卜雖然未圖不， 另外，專利文獻2公開了作為=轉:=裝置的 裝，：)’並且公開了該轉臺裝置具有迴轉接頭。、刀又（轉 在由它們代表的迴轉分度襞置中，像上 ❹ ί置:;被迴轉驅動的迴轉驅動物件大多情5下具》電2的 ί:雜况下’必須配置對該_提供電力的電電 物件 近。即，在迴轉分度f置中置在迴轉軸的軸線附 在該貫通孔内配置上iit在迴轉轴的中心形成貫通孔，-般 的情況下 構.例如其迴轉接頭由圓筒狀的分 200936295 配ρ和嵌裝於分配器的軸構成時，在分配器的中心形成貫通孔， 在該貫通孔内配置上述電纜。 但是，在這樣構成的情況下，上述電纜粗和/或根數多的情況 下，會產生迴轉接頭的滑動阻力變大的問題。具體的是，隨著迴 轉分度裝置的迴轉軸的迴轉，分配器和軸的嵌合面一邊滑動一邊 相對迴轉。另外’由於在兩者之間設有密封部件，所以與只滑動 抵接的情況相比，滑動阻力大。而且，兩者之間的滑動阻力與滑 動面的面積成正比例，由於其面積與滑動部面的直徑成正比^列， 所以滑動面的直徑越大，滑動阻力越大。如上所述的電纜粗和/或 根數多的情況下，必須使用配置直徑大的電纜的貫通孔。由此， Ό 與此同時，分配器和軸之間的滑動面的面積變大，其結果，隨著 兩者相對迴轉的滑動阻力增大。而且，迴轉接頭上^分配器和軸 之間的滑動阻力大時’就會產生這部份動力損失(阻力變大的損 失）。 專利文獻1 :美國專利5,584,621號說明書 專利文獻2 :日本特開2002—36047號公報 【發明内容】 〇 因此，本發明的課題是有效率地驅動迴轉分度裝置，萨由 上述迴轉分度裝置所包含的迴轉接頭直徑更小，使迴轉接^上的 滑動面的面積減小，由此減小由滑動阻力導致的動力損失。 為實現上述課題，申請專利範圍第1項的發明是一工 械用的迴轉分度裝置卜包括：迴轉轴6，以在框架2内可自由 轉的方式設置並藉由設置在端部的迴轉體3支承迴轉驅動物件 f ’迴轉接頭15、32，係與上述迴轉軸6的軸線有關之上述 ^ 6同心地設置的迴轉接頭15、32，並用來對上述迴轉驅動物件 10供給加工用流體，將從上述迴轉驅動物件1〇引出的多根電 27、43以向上述迴轉軸6的軸線方向插入的狀態配線，轉徵在 上述迴轉接頭15、32具有：姆於上魅架2不能相對迴轉 地设置的分配II 16、33 ;相對於上述分配器16、33可相對迴轉地 200936295 嵌裝的軸21、38，上述分配器16、33及軸2ΐ、3 軸心與上述迴轉體3的迴轉中心一致地配置釭中的一個具有 個具有嵌裝在上述軸部22、34的中空圓筒7邻22、34 ’另一 337r2rtf； 33及軸2卜38中的上述另一個令空圓筒部1 们刀配器16、 外側。 39上的外周面的 在引用申請專利範圍第1項的申請專利範 分配器16、33以及軸2卜38中的-個上的上、項中’上述 為實心的，上述、43 __=#部=成 的外周面的外側。 二圓同邛17、39 發明效果 师申i專利範圍第1項的發明’一種工作機械用的迴轉分 匕括·以在_ 2内可自由迴轉的方式設置並藉由設置 工用流趙的迴轉接頭== 出的多根電镜27、43以向上述迴轉軸6的軸線方 二都么觸狀態被配線。其中’在迴轉接頭15、32的構成 ❹ 二=及軸21、38中’在位於半徑方向外側 ^件所具有的中空圓筒部17、39的外周面的外側，配置上述電 、’、7、43中的至少1根，從而能夠減少以往配置在迴轉接頭内部 =電鐵的根數’或不配置在内部。由此，藉由使迴轉接頭的直徑 ^小，旎夠減小聯軸器的分配器和轴之間的滑動面的面積，從而 減小滑動面產生的滑動阻力導致的動力損失，能夠有效率地驅動 迴轉分度裝置。 、另外’在迴轉接頭的軸芯部形成貫通孔並配置上述電纜的情 況下與將多根電纜全部配置在上述貫通孔内的情況相比，能夠 減小貫通孔的直徑。其結果，能夠減小分配器和軸之間的滑動面 的面積，從而能夠減小滑動阻力並減少動力損失。 根據申請專利範圍第2項的發明，在申請專利範圍第1項的 發明中，在迴轉接頭15、32的分配器16、33以及軸21、38中， 6 200936295 -- 你ι。你而舒、iL置在述中空圓筒部17、39的外周面的外 ，夠r:幅度：===來的 徑，月匕夠進—步提高中請專利範圍第1項的發明效i。 【實施方式】 ❹ 的迴成轉為&發台Γ外物轉分度裝置中’除了以下說明的實施例 A軸旋回G主轴卜單5轴f工機的主袖頭中圍繞 Z軸平行的軸線(C軸)、‘;繞與工作機械的 動邱）。卽，所袖驅動该八軸驅動部的部分（C軸驅 轉是對絲工件、卫具等的迴轉驅動 明適用於迴轉分度ί_置之概念°以下’表示將本發 實施例1 圖1表示本發明所適用的迴轉分度裝置的一例的度台 ❹ 軸6?可台Λ是f支承作為迴轉體的圓臺3的迴轉 為轉臺裝置在座即框架2上的裝置’也被稱 鳇的二，r1進行詳細的說明。圓臺3被固定在以可迴 2内的迴轉轴6的一個嫩，藉由被固定 ίϊί 可迴轉的方式相對於框架2而被支承。迴 2成，轴6外殼的迴轉套筒7;藉由螺栓固定“ 、，f、回I接商、Ρ5 轉套筒7 一起爽住轴承8内輪的軸承壓蓋9;後 ^Ϊ°圓臺3被螺栓固定在轴承壓蓋9上，由此， 轉轴6分別形成’但迴轉體也可以是與 另外’在®臺3上形成由祕崎等的貫舰4，該貫通孔4 200936295 棘:側)上向半徑方向内侧突出 48 -- Λ 並不能迴轉地夾緊圓臺3。 置aL工作為迴轉驅動物件10搭載有例如夹具裳 詈以^V β ^)。並且，作為迴轉驅動物件仞，除了夾具裝 °你ί如二在迴轉分度台1的使用狀態下的各種各樣“、物 ❹ 件2 4况疋將圓臺3上的其他迴轉分度台作為迴轉驅動物 ί 1中’作為迴轉轴6的驅動機構，内置右 =，遞機構而直接驅動迴轉軸6 ^DD馬達ΐ (直接（直接驅動型）驅動馬達）。DD馬達u ^ ，馬達轉子12被狀在迴轉軸6的迴轉套筒7上， fit Λ不能迴轉的方式被嵌入框架2上固定 作也可以代ίϊΠ、壷作為迴轉軸6的驅動機構採用dd馬達筒 ❹ 來說t 大致 f 2上固疋的分配态16和迴轉側迴匚 動流體。另外，在迴轉分度裝置的ϋ置用的作 嶋嫩工^ 對迴轉接頭15進行詳細說明，迴轉接 轴6的軸線同心地設置的、相對於框架2二=闕： 200936295 器的内側及轴嵌在分由巧= 刀配器16具有··嵌裝在軸2]的相部22「 筒部Π;被固定在框架2上的、與中空 述^上的令空圓 ❹ 部18。在中空圓筒部17以及i7 一體形成的凸緣 的裝置外部接受加工用流體的供内^;^迴轉分度台1 置地形成多個，流體流路19穿過在二;向上偏 的多個環狀槽20。 二阊间4 17的内周面形成 置的中致的方式配 臺3以及軸承壓蓋9上的凸緣部23。/二、軸邛22，被固定在圓 配器16的中空圓筒部17的環^槽外周面，在與分 狀槽24，多個環狀槽μ分別穿過在nn’形成有多個環 在圓周方向上偏置地多個形成的流體= 凸緣部23的内部 軸21藉由凸緣部23被固定 爪路25。並且，如上所述， ❹ 轉套筒7上，圓臺3以及迴轉套筒7 =迴^* 6的-部分之迴 當於迴轉接頭15的一部分，也相當^。=，軸21既相 根據如上構成的迴轉接頭15，即借H6的一部分。 能維持分配器16 —側的流體$ 轉軸6即軸21迴轉，也 連接的狀態，從裝置外部” ^軸21 一側的流體流路25 體流路25以及圓臺3内部^ ，體藉由流體流路19、流 物件ω。 内#成的流體流路％被供給到迴轉驅動 另夕卜^足迴轉驅動物件 的電力供給用的多根電境2?。作為該驅動物件10供給電力 動物件10具有電驅動部的情況下二如變7的具體例’在迴轉驅 圓臺3上還搭栽其他谢度台的情況下該上電==: 9 200936295 他迴轉分度台的驅動馬達等供給電力的電力供給電瘦（動力電 ^)。除此以外，還包括與迴轉驅動物件10所;備的感測器（迴 轉檢測器等）連接的信號線等。 從迴轉驅動物件10引出的電纜27以如下方式配線：從圓臺3 一側藉由貫通孔4内被引入迴轉分度台丨内，並藉由迴轉分度台t 的各部件上形成的切口部28、29、3G。魏27向迴轉轴6 人並貫穿迴轉分度纟1内部，並被與分配器π的 i軸線方向相_反圓臺3的側端面上設置的魏引導 ί ^ :其前端朝向功麵—侧的未圖示的電源回路被 ❹ 電迴轉驅動物件1〇、圓臺3以及迴轉轴6的迴轉， 圈以上’所以如果在框架2内以某程度的 餘^度對魏27轉，就不會有魏27扭曲的問題。 緣部i口、:二:?:!0分別形成在圓臺3的臺階部5、軸21的凸 周方向的蚊範圍"^隨著^臺3的迴轉可^ 视H7運動的程度的範圍）的扇形（圖2)。 与樣’在圓臺3的臺階部5、軸21的凸绫 八 〇 ^ - 3：，1! 纜27。 ’、 緣。卩18、凸緣部23)的外側可以藉由電 側即=二二，在迴轉接頭15的主體外 由此，與在壇轉接筒部17的外周面杯 比，能夠使迴轉接頭的吉=成貫通孔進行電鐵的配線的情況相 間的滑動面的面積減】"徑減小。其結果，能夠使分配器和軸之 並且，在本=夠減小滑動阻力並減少動力損失。 21的軸部22形成為眘大限度地發揮本發明的效果，將軸 迴轉接頭主體内部穿減小迴轉接頭的直徑，並不在 體的外側，在軸21的叙都將王邛多根電纜配置在迴轉接頭主 邻22上形成貫通孔，並將多根電纜中的1 200936295 根或多根配置在上述貫通軸，在此情況下，與 配置在上述貫通孔_航概，關減小貫觀的g根= ===和抽之間的滑動面的面積，並能“小滑: 實施例2 圖3表示迴轉躺的分㈣和軸之間的伟方向的 與實施例1相反的例子。即’在本例中，迴轉接頭32 成、. 輛38嵌入分配器33的外侧。 「再取· ❹200936295 VI. Description of the Invention: [Technical Field] The present invention relates to a Hji (4) indexing device, which provides a rotary joint for electric power and fluid pressure. [Left-Technology] The right-hand ΐΐ ΐΐ 1 1 ΐ ΐ ΐΐ ΐΐ ΐΐ ΐΐ 在 在 在 在 在 在 在 在 在 在 在 在 在 在 在 在 在 在 在 在 在 在 在 在 在 在 在 在 在 在 在 在 在 在 在 在 在 在 在 在 在 在 在 在 在 在 在 在 在 在 在 在 在 在 在 在 在 在 在 在 在 在 在 在 在 在 在 在 在 在 在 在 在 在(While it is not shown in the drawings, Patent Document 2 discloses a device as a ==:= device, :)' and discloses that the turntable device has a swivel joint. , the knife again (in the rotary indexing device represented by them, like the upper ❹ ί set:; the slewing drive object driven by the slewing is mostly 5) 电 2: under the condition 'must be configured _ providing an electric power object close to the electric power. That is, the axis of the rotary shaft is placed in the through hole in the center of the rotary index, and iit forms a through hole in the center of the rotary shaft. In general, for example, When the rotary joint is composed of a cylindrical portion 200936295 and a shaft fitted to the distributor, a through hole is formed in the center of the distributor, and the cable is disposed in the through hole. However, in the case of the above configuration, When the number of cables is large and/or the number of the cables is large, there is a problem that the sliding resistance of the swivel joint becomes large. Specifically, as the rotary shaft of the rotary indexing device rotates, the fitting surface of the distributor and the shaft slides. In addition, since the sealing member is provided between the two, the sliding resistance is larger than that in the case of only sliding contact, and the sliding resistance between the two is proportional to the area of the sliding surface. Its area and Since the diameter of the sliding surface is proportional to the diameter of the sliding surface, the sliding resistance is larger as the diameter of the sliding surface is larger. When the number of cables and/or the number of the cables is large as described above, it is necessary to use a through hole in which a cable having a large diameter is disposed. Thereby, at the same time, the area of the sliding surface between the distributor and the shaft becomes large, and as a result, the sliding resistance with respect to the relative rotation of the both increases. Moreover, between the splitter and the shaft on the swivel joint When the sliding resistance is large, this part of the power loss is generated (the loss is increased). Patent Document 1: U.S. Patent No. 5,584,621, the disclosure of which is hereby incorporated by reference. An object of the invention is to efficiently drive a rotary indexing device, and the rotary joint included in the rotary indexing device has a smaller diameter, so that the area of the sliding surface on the rotary joint is reduced, thereby reducing the sliding resistance. In order to achieve the above problem, the invention of claim 1 is a rotary indexing device for a machine tool comprising: a rotary shaft 6 which is rotatably provided in the frame 2 and The rotary drive member f' swivel joints 15, 32 are supported by the rotary body 3 provided at the end, and the rotary joints 15, 32 which are concentrically arranged with respect to the axis of the rotary shaft 6 are used for the above-mentioned rotary drive. The object 10 is supplied with a processing fluid, and the plurality of electric wires 27 and 43 drawn from the slewing and driving object 1 以 are in a state of being inserted into the axial direction of the rotary shaft 6 and are transferred to the swivel joints 15 and 32. The distributions II 16, 33 of the upper frame 2 cannot be rotated relative to each other; the shafts 21, 38 which are relatively rotatable with respect to the above-mentioned distributors 16, 33, the distributors 16, 33 and the shafts 2, 3 One of the cymbals disposed in correspondence with the center of rotation of the above-described rotator 3 has the above-described hollow cylinders 7 adjacent to the shaft portions 22, 34, 22, 34', and the other 337r2rtf; 33 and the shaft 2 The other hollow cylinder portion 1 has a cutter 16 and an outer side. The above-mentioned, the above-mentioned, 43 __=# of the outer peripheral surface of the patent application vane 16, 33 and the upper one of the shafts The part = the outer side of the outer peripheral surface. The second invention is the invention of the effect of the invention. The invention of the first application of the patent scope of the invention is as follows: a type of rotary machine for working machines is provided in a freely rotatable manner in _ 2 and is provided by setting the flow of work. The plurality of electron microscopes 27 and 43 that are turned out are connected to each other in the state of the axis of the rotary shaft 6. In the configuration of the rotary joints 15, 32, and the shafts 21 and 38, the electric, ', and 7 are disposed outside the outer peripheral surfaces of the hollow cylindrical portions 17, 39 which are located on the outer side in the radial direction. At least one of 43 and 43 can reduce the number of conventionally placed inside the swivel joint = the number of electric irons or not. Therefore, by making the diameter of the swivel joint small, the area of the sliding surface between the distributor and the shaft of the coupling can be reduced, thereby reducing the power loss caused by the sliding resistance generated by the sliding surface, and the efficiency can be improved. Ground drive rotary indexing device. In addition, when the through hole is formed in the axial center portion of the swivel joint and the cable is disposed, the diameter of the through hole can be made smaller than when all of the plurality of cables are disposed in the through hole. As a result, the area of the sliding surface between the distributor and the shaft can be reduced, so that the sliding resistance can be reduced and the power loss can be reduced. According to the invention of claim 2, in the invention of claim 1 of the invention, in the distributors 16, 33 of the swivel joints 15, 32 and the shafts 21, 38, 6 200936295 - you ι. You are comfortable, iL is placed outside the outer peripheral surface of the hollow cylindrical portions 17, 39, enough r: amplitude: === the diameter of the coming, the moon is enough to advance - step to improve the invention effect of the first item of the patent scope i. [Embodiment] The 回 is turned into a & Γ Γ Γ Γ Γ Γ ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' The axis (C-axis), '; around the working machine's moving Qiu).卽, the portion of the sleeve that drives the eight-axis drive unit (the C-axis drive is a rotary drive for the wire workpiece, the guard, etc., and the concept of the rotary index is applied to the rotary index ί_), which is shown in the first embodiment of the present invention. 1 is a diagram showing an example of a rotary indexing device to which the present invention is applied. The table is a device that supports the rotation of the truncated cone 3 as a rotating body to the frame 2, which is a seat of the turntable device. The second table, r1, is described in detail. The truncated cone 3 is fixed to the one of the rotary shafts 6 which can be returned to the inside, and is supported by the frame 2 by being fixedly rotatably rotated. The rotary sleeve 7 of the outer casing of the shaft 6; the bearing gland 9 of the inner wheel of the bearing 8 is cooled by the bolts ", , f, the return I, the 转 5 swivel sleeve 7; the rear turntable 3 is bolted On the bearing gland 9, whereby the rotating shaft 6 is formed separately, but the rotating body may also be formed on the ® table 3 by a bridge 4 such as Mizusaki, the through hole 4 200936295 The inner side of the radial direction protrudes 48 -- Λ and the round table 3 is not rotatably clamped. The aL operation is a rotary drive object 10 equipped with, for example, a clip. With the 詈 詈 ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ The other rotary indexing table on the round table 3 serves as the driving mechanism for the rotary shaft 6 in the rotary drive ί 1 , with the built-in right =, the direct drive mechanism and the direct drive of the rotary shaft 6 ^ DD motor ΐ (direct (direct drive) drive motor). The DD motor u ^ , the motor rotor 12 is shaped on the rotary sleeve 7 of the rotary shaft 6, and the fit Λ can not be rotated to be embedded in the frame 2 or fixed. Alternatively, the drive mechanism as the rotary shaft 6 can be used as a dd motor. In the case of a cylinder, t is substantially a fixed state 16 on the f 2 and a turbulent fluid in the swing side. In addition, the rotary joint 15 is described in detail in the slewing device of the rotary indexing device. The axis of the rotary joint 6 is concentrically arranged with respect to the frame 2 = 阙: 200936295 inside and axis of the device The hollow portion 「 刀 刀 相 相 相 相 相 相 相 相 相 相 相 相 相 相 相 相 相 相 相 相 相 相 相 相 相 相 相 相 相 相 相 相 相 相 相 相 相 相 相 相 相 相 相 相 相 相The outer portion of the flange in which the cylindrical portion 17 and the i7 are integrally formed receives the supply of the processing fluid; the rotary indexing table 1 is formed in plurality, and the fluid flow path 19 is passed through at two; The groove 20 is formed on the inner peripheral surface of the second turn 4 17 and the flange portion 23 on the bearing gland 9 is formed. The second shaft 22 is fixed to the hollow circle of the circular fitting 16. In the outer circumferential surface of the ring portion of the tubular portion 17, in the minute groove 24, the plurality of annular grooves μ are respectively formed by a plurality of fluids formed in a plurality of rings offset in the circumferential direction at nn' = flange portion The inner shaft 21 of the 23 is fixed to the claw path 25 by the flange portion 23. And, as described above, the turntable 3, the turntable 3, and the swivel sleeve 7 = back to *6 The return is a part of the swivel joint 15, which is also equivalent. =, the shaft 21 is in accordance with the swivel joint 15 constructed as above, that is, a part of the H6. The fluid of the side of the distributor 16 can be maintained. The state of the rotation and the connection is from the outside of the apparatus. The fluid flow path 25 on the side of the ^ axis 21 is the body flow path 25 and the inside of the round table 3, and the body flows through the fluid flow path 19 and the flow object ω. The internal fluid flow path % is supplied to the slewing drive, and the plurality of electric power supplies 2 for power supply of the slewing drive object are further provided. In the case where the power supply animal article 10 is supplied with the electric drive unit 10 as in the case of the drive object 10, the specific example of the change 7 is to be erected on the rotary drive table 3, and the power is turned on ==: 9 200936295 The electric power supplied to the electric motor such as the drive motor of the indexing table is electrically thin (power). In addition to this, a signal line or the like connected to a sensor (return detector or the like) provided in the rotary drive object 10 is included. The cable 27 drawn from the slewing drive member 10 is wired in such a manner that the inside of the circular table 3 is introduced into the rotary indexing table by the through hole 4, and the slit formed by the components of the rotary indexing table t is formed. Departments 28, 29, 3G. Wei 27 turns to the rotary axis 6 people and runs through the inside of the rotary indexing 纟1, and is placed on the side end surface of the counter-circular table 3 with the i-axis direction of the distributor π: the front end faces the power surface-side The power supply circuit (not shown) is rotated by the electric rotary drive object 1〇, the round table 3, and the rotary shaft 6, so that if the rotor is turned to a certain degree in the frame 2, it will not There is a problem with Wei 27 distortion. The edge i-port, the second:?:!0 are respectively formed in the step portion 5 of the truncated cone 3, and the mosquito range in the convex circumferential direction of the shaft 21"^ with the rotation of the table 3 can be regarded as the degree of H7 movement Range of sectors (Figure 2). The same as in the step portion 5 of the truncated cone 3, the tenon of the shaft 21 is eight 〇 ^ - 3:, 1! ‘, edge.卩18, the outer side of the flange portion 23) can be made by the electric side, that is, the second side, outside the main body of the swivel joint 15, and thus the outer peripheral surface cup of the yoke adapter cylinder portion 17, can make the rotary joint = When the wiring of the electric iron is made as a through hole, the area of the sliding surface between the phases is reduced by "the diameter is reduced. As a result, it is possible to reduce the sliding resistance and reduce the power loss in the present case. The shaft portion 22 of the 21 is formed to exhibit the effect of the present invention with great care, and the inner diameter of the shaft swivel joint body is reduced to reduce the diameter of the swivel joint, and is not disposed outside the body, and the cable is disposed in the shaft of the shaft 21 A through hole is formed in the main joint 22 of the swivel joint, and one or more of the plurality of cables are arranged in the through shaft, and in this case, the through hole is arranged in the through hole, and the cut is reduced. g root = === and the area of the sliding surface between the pumping, and can be "small slip: Embodiment 2 Fig. 3 shows an example of the opposite direction between the sub-section (4) of the revolving and the direction of the shaft. 'In this example, the swivel joint 32 is inserted into the outside of the distributor 33. "Retake ·
迴轉接頭32具有：有關迴轉軸6的軸線同心地設置的、 於框架2不能相對迴轉地設㈣、從裝置外部接受加工用流體的 供給的分配器33 ;相對於分配器33以可相對迴轉的方式嵌裝的、 從分配器33接受加工用流體的供給的軸38。 分配器33具有.被喪裝在軸％的中空圓筒部(後述）上 的軸部34 ;與轴部34 -體形成的、根據迴轉擋塊44而不能相對 於框架2迴轉地設置的凸緣部35。在軸部34以及凸緣部乃的内 4，從分度圓宜1的裝置外部接受加工用流體的供給的流體流路 36在圓周方向上偏置地形成乡個，各频流路36穿過軸部％的 外周面上形成的多個環狀槽37。 另外’軸38具有：軸心與圓臺3的迴轉中心一致地配置的、 與分配器33的軸部34喪合的中空圓筒部39 ;與中空圓筒部39 一體形成的、被固定在圓臺3以及軸承壓蓋9上的凸緣部4〇。在 中空圓筒部39的内周面，在與分配器33的軸部弘的環狀槽37 對應的位置，形成有多個環狀槽41，多個環狀槽41分別穿過在中 空圓筒部39以及凸緣部40的内部在圓周方向上偏置地多個形成 的流體流路42。 與實施例1同樣地，從迴轉驅動物件1〇引出對迴轉驅動物件 10供給電力的電力供給用的多根電纜43。電纔43以如下方式配 線.從圓臺3 —側藉由貫通孔4内被引入迴轉分度台1内，並藉 由圓臺3的臺階部5以及軸38的凸緣部40上形成的切口部45、 46。電纜43向轉動軸6的軸線方向被插入並貫穿轉動分度台1内 11 200936295 形成的電纜引導部41保持，而^装7^3被向半徑方向内側突出 示的電源回路被配置。形成有雷朝向工作機械一側的未圖 軸6 (蝴及圓臺3 轉套筒卿 筒7上的魏43也在縣2触、®^5導。卩47_在迴轉套 架2内魏43不扭曲。因此6等一起迴轉，從而在框 =足夠不广-的運動 ❹ 軸加具:胃主=頭是用於5 軸加工機上搭_情況下，球ίί體頭是在5 ⑽轴)以及=χγ平面平_ 堪動部迴触_ A 轉物。在被c軸 達、流體壓夹緊邻黧，/ Γ紅 早兀*上，内置有驅動馬 向驅動馬達力部以及Α抽驅動部上，貫穿有 的迴轉接頭。、、°電力的電纔，並且内置有用於供給加工用流體 ❹ 置在了、明所稱的迴轉體是被設 軸驅動部，本發明所::=:==。-另外：果著眼於c 分，迴轉驅動物件是A轴驅文裝有A轴驅動部的聯軸器部 主轴頭不轴頭。並且’作為該 可以是日太所的（在兩側支承主轴單元）部件，也 部件。特開平3—178709號公報記載的單側支承主軸單元的 工業實用性 12 200936295 本發明能夠廣泛應用於具有迴轉接頭的裝置，該迴轉接頭對 迴轉物件進行迴轉驅動、且對迴轉中的迴轉物件供給流體、電力。 【圖式簡單說明】 圖1是迴轉分度台1的剖視圖； 圖2是迴轉分度台1的俯視圖； 圖3是迴轉分度台1的剖視圖；以及 圖4是5軸加工機的主軸頭的概要圖。The swivel joint 32 has a distributor 33 which is disposed concentrically with respect to the axis of the rotary shaft 6, and which is not rotatable relative to the frame 2 (4), receives supply of machining fluid from the outside of the apparatus; and is relatively rotatable relative to the distributor 33. A shaft 38 that is fitted in a manner that receives the supply of processing fluid from the distributor 33. The distributor 33 has a shaft portion 34 that is shackled on a hollow cylindrical portion (described later) of the shaft %, and a convex portion that is formed integrally with the shaft portion 34 and that cannot be rotated with respect to the frame 2 according to the turning stopper 44. Edge 35. In the inner portion 4 of the shaft portion 34 and the flange portion, the fluid flow path 36 that receives the supply of the machining fluid from the outside of the apparatus having the index circle of 1 is formed in the circumferential direction, and the respective frequency flow paths 36 are formed. A plurality of annular grooves 37 formed on the outer peripheral surface of the shaft portion %. Further, the 'shaft 38 has a hollow cylindrical portion 39 that is disposed in line with the center of rotation of the truncated cone 3 and that is coupled to the shaft portion 34 of the distributor 33; and is integrally formed with the hollow cylindrical portion 39 and is fixed to The round table 3 and the flange portion 4 of the bearing gland 9 are provided. On the inner circumferential surface of the hollow cylindrical portion 39, a plurality of annular grooves 41 are formed at positions corresponding to the annular grooves 37 of the shaft portion of the distributor 33, and the plurality of annular grooves 41 are respectively passed through the hollow circle. A plurality of fluid flow paths 42 are formed in the circumferential direction of the tubular portion 39 and the flange portion 40. In the same manner as in the first embodiment, a plurality of cables 43 for supplying electric power for supplying electric power to the rotary driven object 10 are taken out from the rotary driven object 1A. The electric wire 43 is wired in the following manner. The inside of the circular table 3 is introduced into the rotary indexing table 1 through the through hole 4, and is formed by the step portion 5 of the circular table 3 and the flange portion 40 of the shaft 38. Notched portions 45, 46. The cable 43 is inserted into the axis of the rotating shaft 6 and penetrates through the inside of the rotary indexing table 1 11 . The cable guiding portion 41 formed by the 200936295 is held, and the power supply circuit which is protruded inward in the radial direction is disposed. There is a non-drawing axis 6 with a mine facing the working machine side. (Wei 43 on the butterfly and the round table 3 on the sleeve of the sleeve 7 is also in the county 2 touch, ®^5 guide. 卩47_ in the swivel frame 2 43 is not distorted. Therefore, 6 etc. are rotated together, so that the frame is not wide enough - the axis is added: the stomach main = the head is used on the 5-axis machine. In the case, the ball ίί body head is at 5 (10) Axis) and = χ γ plane flat _ Kan moving back _ A turn. On the c-axis, the fluid pressure clamp is adjacent to the 黧, / Γ红 兀*, the rotary joint that penetrates the drive motor force portion and the pumping drive unit is built in. In addition, the electric power of the electric power is built in, and the fluid for supplying the machining fluid is built in. The revolving body is called the shaft drive unit, and the present invention::=:==. - In addition: Focus on the c-point, the slewing drive object is the A-axis drive. The coupling part with the A-axis drive section is not the spindle head. And as a component that can be a Japanese-style (supporting the spindle unit on both sides), it is also a component. Industrial Applicability of One-Side Supporting Spindle Units as disclosed in Japanese Laid-Open Patent Publication No. Hei No. 3-178709. The invention can be widely applied to a device having a swivel joint that rotatably drives a swivel object and supplies the swivel object in rotation. Fluid, electricity. BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a cross-sectional view of a rotary indexing table 1; Fig. 2 is a plan view of a rotary indexing table 1; Fig. 3 is a cross-sectional view of a rotary indexing table 1; and Fig. 4 is a spindle head of a 5-axis machining machine Schematic diagram.
【主要元件符號說明】 1 迴轉分度台 2 框架 3 圓臺 4 貫通孔 5 臺階部 6 迴轉軸 7 迴轉套筒 8 轴承 9 軸承壓蓋 10 迴轉驅動物件 11 DD馬達 12 馬達轉子 13 馬達定子 14 定子套筒 15 迴轉接頭 16 分配器 17 中空圓筒部 18 凸緣部 19 流體流路 20 環狀槽 13 200936295 21 22 23 24 25 26 27 28 29 30 ❹ 31 32 33 34 35 36 37 38 39 ❹ 40 41 42 43 44 45 46 47 48 軸 軸部 凸緣部 環狀槽 流體流路 流體流路 電纜 切口部 切口部 切口部 電纜引導部 迴轉接頭 分配器 軸部 凸緣部 流體流路 環狀槽 軸 中空圓筒部 凸緣部 環狀槽 流體流路 電纜 迴轉擋塊 切口部 切口部 電纜引導部 固緊套筒[Description of main components] 1 Rotary indexing table 2 Frame 3 Round table 4 Through hole 5 Step 6 Rotary shaft 7 Slewing sleeve 8 Bearing 9 Bearing gland 10 Slewing drive object 11 DD motor 12 Motor rotor 13 Motor stator 14 Stator Sleeve 15 swivel joint 16 distributor 17 hollow cylindrical portion 18 flange portion 19 fluid flow path 20 annular groove 13 200936295 21 22 23 24 25 26 27 28 29 30 ❹ 31 32 33 34 35 36 37 38 39 ❹ 40 41 42 43 44 45 46 47 48 Shaft shaft portion flange portion annular groove fluid flow path fluid flow path cable notch portion notch portion notch portion cable guide portion swivel joint distributor shaft portion flange portion fluid flow path annular groove shaft hollow circle Tube flange portion annular groove fluid flow path cable rotary block cutout portion cutout portion cable guide portion fastening sleeve