200940220 六、發明說明： 【發明所屬之技術領域】 本發明主要是對C型鋼之類的被加工物執行穿孔等必 要作業的旋轉切削裝置，特別是有關於：具備用來固定於 被加工物之固定裝置的旋轉切削裝置。 【先前技術】 Φ 該類型的旋轉切削裝置，通常是形成：在旋轉切削裝 置本體的下面安裝有固定裝置，該固定裝置，是將挾持固 定於C型鋼等被加工物的一對挾持構件面向彼此地設成平 行，並由導引構件將該一對挾持構件支承成：可相互接近 或分離，藉由旋鎖卡合「在該挾持構件設置左右螺紋」的 兩螺絲並促使該兩螺絲旋轉，可使該挾持構件沿著導引構 件而產生相互接近的移動，而形成將被加工物挾持固定於 其間（譬如，請參考專利文獻1 )。 〇 〔專利文獻1〕日本特許2537115號 【發明內容】 〔發明欲解決之課題〕 該類型的旋轉切削裝置，被搬運到工事現場，並由作 業者執行鎖緊固定於被加工物的作業的情況很常見，因此 ，該旋轉切削裝置有著更輕量化的需求，但在上述類型的 固定裝置中，由於需要用來導引挾持構件的導引構件以致 重量大增，而具有操作困難的問題。 -5- 200940220 有鑑於上述的問題點，本發明的目的是提供一種：藉 由將固定裝置更進一步地輕量化’而容易操作的旋轉切削 裝置。 〔解決課題之手段〕 換言之，本發明是提供一種附有固定裝置的旋轉切削 裝置，該附有固定裝置的旋轉切削裝置具有： 旋轉切削裝置本體（在以下所說明的實施形態中以圖 ◎ 號22來表示）；及 固定裝置（24)，該固定裝置（24)被安裝於該旋轉 切削裝置本體，可將該旋轉切削裝置本體可卸下地固定於 被加工物， 該固定裝置（24)具有： 框體（26)，該框體（26)被安裝於該旋轉切削裝置 本體（22 );和 —對挾持構件（36)，該一對挾持構件（36)是彼此 〇 平行地保持一定的間隔，並以一對樞軸線（A )作爲中心 而可樞動地安裝於該框體，且該一對挾持構件（36)分別 具有挾持部（38)，該挾持部（38)是彼此面對地設在從 該樞軸線（A)分離的前端側，而形成可挾持被加工物（ W);和 伸縮構件（46 )，該伸縮構件（46 )是設在該一對挾 持構件（36)間，並可在連結該一對樞軸線（A)的線上 朝平行的方向伸縮，而被該一對挾持構件（36)所樞支； -6- 200940220 及 連接構件（66 )，該連接構件（66 )使該 件（36)相互連接’當其中一個挾持構件在其 )的周圍朝順時針方向或逆時針方向的其中任 動時，使另一個挾持構件在其樞軸線（A)的 的方向樞動。 在該旋轉切削裝置的固定裝置中，挾持構 φ 非如傳統的裝置般平行移動，而是藉由樞動而 加工物，且由於不需要用來導引挾持構件的導 的零件，故可形成輕量。因此，作業員可輕易 切削裝置設定在所需的位置。 具體地說， 上述框體（26)具有： 被安裝於旋轉切削裝置本體（22)的基部 被加工物抵接部（32 )， 〇 在使被加工物抵接部（32)抵接於被加工 狀態下，可執行藉由挾持部（38)對被加工物 持。 更具體地說， 上述框體（26)的基部（28)是形成板狀 該板狀之基部（28)的兩側邊緣延伸的腳部（ 加工物抵接部（32)是由從該腳部的前端彎折 構成，而可使該經彎折的前端部面向從基部（ 方向的面’抵接於被加工物（W)。 一對挾持構 樞軸線（A —個方向樞 周圍朝相反 件（3 6 )並 挾持固定被 件及其相關 地將該旋轉 (28 )、及 物（W )的 (W )的挾 ，並具有從 30 )，該被 的前端部所 28 )分離之 -7- 200940220 上述一對挾持構件（36)的挾持部（38)，具有朝彼 此面對的方向突出的道釘’當挾持被加工物時，該道釘最 好是由被加工物（w)所按壓。 在上述場合中，當上述—對挾持構件（36)的挾持部 (38)挾持被加工物（W)時’該道釘最好是形成：較垂 直延伸於「從上述樞軸線（A)相互連結該樞軸線（A) 的線」的那一條線更內側。 藉由上述的說明，道釘可作用將被加工物（W)朝框 ^ ❹ 體（26)上推的力量，而形成可更強力地保持被加工物。 上述伸縮構件是由：被樞支於其中一個挾持構件（36 )的母螺紋構件（48);及旋鎖卡合於該母螺紋構件（48 )，且被樞支於另一個挾持構件（36)的公螺紋構件（50 )所形成。 上述一對挾持構件（3 6 )分別由以下所形成，且整體 是形成C字型的構件：在較該樞軸線（Α)更外側，且平 行地延伸至該樞軸線的板狀中央板部（36-1 );從該中央 0 板部之上述樞軸線（Α)的延伸方向的兩側邊緣，朝另一 個挾持構件（36 )延伸的一對兩側板部（36-2 );該挾持 部（38 )是由固定於中央板部（36-1 )的板狀構件所構成 ，上述伸縮構件（46)是被配置在挾持構件（36)的中央 板部（36-1 )間，其兩端可被各自所對應之挾持構件（36 )的兩側板部（36-2 )所樞支。 此外，上述一對挾持構件（36)的兩側板部（36-2) 具有：可在該一對挾持構件（36)以各自的樞軸線作爲中 -8- 200940220 心，且同時朝彼此相反的方向轉動的狀態下，彼此接近的 邊緣，並可在接近的兩側板部間設置連接構件（66)。 具體地說，該一對挾持構件（3 6 )的該兩側板部（ 3 6-2)之彼此接近的邊緣，具有彼此相對的圓弧狀凹部（ 62、64)，連接構件（66)可嵌合在：由該凹部彼此面對 所劃分而成的略圓形狀空間。 就別的形態而言，上述連接構件也可以由：使上述一 φ 對挾持構件（36 )之兩側板部（36-2 )彼此接近的邊緣互 相嚙合的齒輪齒所形成。 【實施方式】 以下，根據圖面來說明本發明之旋轉切削裝置的實施 形態。 第1圖，是顯示本發明的旋轉切削裝置10。 如圖面所示，該旋轉切削裝置1〇具有旋轉切削裝置 φ 本體22，該旋轉切削裝置本體22具有：電動馬達12、和 由驅動連結於該電動馬達之輸出軸14的複數個齒輪161斤 形成的齒輪列1 6、和藉由該齒輪列而旋轉驅動的軸1 8、 和安裝於該軸之下端的筒狀旋轉切削工具20、及促使該軸 上下運動的齒條小齒輪裝置21。該旋轉切削裝置本體22 已爲該業者所熟知，故省略其詳細說明。而該旋轉切削裝 置本體具備供油裝置，該供油裝置是由以下所構成：從其 外部將切削油供給至筒狀切削工具20的噴嘴25 ;和供油 槽23;和可供切削油從供油槽通往噴嘴的供油管27;及 -9- 200940220 介裝於該供油管的手動泵29與單向閥31，作業者可藉由 按壓手動泵29上由橡膠等彈性構件所構成的帽子狀泵構 件29~，來執行供油。 在旋轉切削裝置本體22的下部設有該固定裝置24， 該固定裝置24是用來將該旋轉切削裝置本體固定於C型 鋼等欲執行穿孔的被加工物W。 該固定裝置24，具有安裝固定於該旋轉切削裝置本體 22的框體26。該框體26具有：在第1圖的視角中延伸於 ❹ 左右的板狀基部28、和從該基部的左右兩端延伸至下方的 一對腳部30、及使該腳部的前端朝左右方向外側水平地彎 曲的被加工物抵接部32。如第3圖及第4圖所示，腳部 3〇就整體而言是形成T字型，並且由：延續於基部28的 寬幅部分30-1、及延續於該寬幅部分30-1的窄幅部分30-2所形成。基部28被固定於旋轉切削裝置本體22，被加 工物抵接部32在執行穿孔作業時是抵接於被加工物W。 在基部28及較該基部更窄的窄幅部分30-2，分別如第5 Q 圖及第2圖所示，設有開口 28-1、開口 30-2一。 固定裝置24更進一步具有一對挾持構件36，該一對 挾持構件36在第2圖〜第4圖所示的左右方向上保持間 隔，並將垂直於上述各圖面之紙面而延伸的一對樞軸線A 作爲中心，而可樞動地安裝於框體26。該挾持構件分別具 有挾持部38，該挾持部38是彼此相對地設在從樞軸線a 分離的前端側，而形成可挾持被加工物W。具體地說，各 挾持構件3 6如第5圖的仰視圖所示，是形成由··中央板 -10- 200940220 部36-1、及從該中央板部之（從第5圖的視角觀看）上下 端延伸的兩側板部36-2所構成的C字型構件。上述挾持 部38，是利用螺栓39而安裝於中央板部36-1，且從第1 圖的視角觀看，是由延伸於左右方向的板狀構件所構成。 在腳部30的寬幅部分30-1(第3圖 '第4圖）之間設有 :沿著樞軸線A延伸’且端面接觸該寬幅部分3〇_i之内 壁面的筒狀母螺紋構件（圖面中未顯示），並從「位在接 〇 觸於該寬幅部分3 0-1之外壁面的位置」之挾持構件36的 兩側板部36-2外側’使螺栓40(第2圖）通過該兩側板 部36-2及寬幅部分30-1而旋鎖卡合於該母螺紋構件的兩 ίίϊ5部分’藉此’挾持構件3 6以樞軸線A作爲中心而樞支 於腳部3 0。 固定裝置24更進一步具有伸縮構件46，該伸縮構件 46被設在一對挾持構件36之間，並可在連結於樞軸線a 間的線上，朝平行的方向伸縮，而被該一對挾持構件36 ❹ 所樞支。具體地說，該伸縮構件46如第3圖及第4圖所 示，在其中一個挾持構件3 6具有以樞軸線b作爲中心所 樞支的母螺紋構件48，並在另一個挾持構件36具有以樞 軸線B作爲中心所樞支，且旋鎖卡合於母螺紋構件48的 公螺紋構件50。更具體地說，在公螺紋構件50設有棒狀 構件52，該棒狀構件52是直交於公螺紋構件5〇之長度方 向的軸線，並沿著樞軸線B延伸直到抵達挾持構件36之 兩側板部3 6 -2的内壁面爲止，從挾持構件3 6之兩側板部 36-2的外側通過的螺栓54則螺合於該棒狀構件的兩端， -11 - 200940220 如此一來，公螺紋構件5 0是以樞軸線B作爲中心，而對 挾持構件3 6 (的兩側板部）形成可以樞動。在母螺紋構件 48也同樣設有棒狀構件58，該棒狀構件58是直交於母螺 紋構件之長度方向的軸線，並沿著樞軸線B貫穿母螺紋構 件48 (第1圖），且延伸到挾持構件之兩側板部36-2的 内壁面爲止，從挾持構件36之兩側板部3 6-2的外側通過 的螺栓60則螺合於該棒狀構件的兩端，如此一來，母螺 紋構件48是以樞軸線B作爲中心，而對挾持構件36 (的 ^ 兩側板部）形成可以樞動。公螺紋構件50在第3圖之視 角的左端設有操作桿5(Γ，該操作桿5(Γ是用來使該公螺紋 構件以其軸線作爲中心產生旋轉，而調節與母螺紋構件48 間之螺合後促使該伸縮構件46伸縮。在第3圖之視角的 左側挾持構件36的中央板部36-1，設有可供該操作桿5(Γ 通向外側的開口 36-Γ，在右側的挾持構件36也設有相同 的開口 36-K。作業者可藉由握持該操作桿後旋轉，而進 行挾持構件36對被加工物W的挾持固定、或固定解除的 © 操作。 兩挾持構件36之兩側板部3 6_2是設成彼此鄰接，並 在該鄰接的邊緣設有相對的半圓狀凹部62、64，在兩凹部 間嵌合著圓形的連接構件64。該連接構件66，在當其中 一個挾持構件36在該樞軸線A的周圍朝順時針方向或逆 時針方向之任一個方向的樞動時，使另一個挾持構件36 在該樞軸線A的周圍朝相反的方向樞動，而阻止兩個挾持 構件朝相同的方向樞動。 -12- 200940220 如第2圖〜第4圖所示，在挾持構件36的挾持部38 設有：在彼此面對的方向上略爲突出的道釘61，當挾持被 加工物W時，是形成該道釘61受到被加工物的押壓。在 圖示的實施形態中，由第4圖可清楚得知，當挾持構件36 的挾持部38挾持被加工物W時，連結「該道釘61的前 端、與設有該道釘之挾持構件36的樞軸線A」的線，是 在較「從設有該道釘之挾持構件的樞軸線A起，垂直地延 φ 伸至兩樞支構件之樞軸線A相互連結的線」的那一條線的 更內側形成傾斜，該道釘6 1是形成較垂直延伸於「從樞 軸線A相互連結該樞軸線A的線」的那一條線更內側， 當進行挾持時，道釘61是作用將該被加工物朝上方舉起 的力量。 以上，雖然是說明了本發明的實施形態，但本發明並 不侷限於以上的說明，舉例來說，兩側板部3 6-2彼此鄰 接的邊緣，也能形成以各自的樞軸線作爲中心的圓弧狀， 〇 並設置彼此嚙合的齒輪齒。 【圖式簡單說明】 第1圖：是具備本發明之固定裝置的旋轉切削裝置的 局部剖面側視圖。 第2圖：是第1圖中的旋轉切削裝置之固定裝置的側 視圖。 第3圖：是同一個固定裝置的縱向截斷的側視圖，是 顯示挾持構件未挾持被加工物的狀態。 -13- 200940220 第4圖：是同一個固定裝置之縱向截斷的側面圖，是 顯示挾持構件挾持著被加工物的狀態。 第5圖：爲同一個固定裝置的仰視圖。 【主要元件符號說明】 A :樞軸線 B :樞軸線 W :被加工物 1 〇 :旋轉切削裝置 12 :電動馬達 14 :輸出軸 1 6 :齒輪列 1 :齒輪 18 :軸 20 :旋轉切削工具 2 1 :齒條小齒輪裝置 22 :旋轉切削裝置本體 2 3 :供油槽 24 :固定裝置 25 :噴嘴 26 :框體 27 :供油管 2 8 :基部 28-1 :開口 14- 200940220 29 :手動泵 29> :帽子狀的泵構件 30 :腳部 3 0 -1 :寬幅部分 30-2 :窄幅部分 30-2':開口 3 1 :單向閥 φ 32:被加工物抵接部 36 :挾持構件 36-1 :中央板部 3 6-1':開口 36-2 :兩側板部 3 8 :挾持部 3 9 :螺栓 40 :螺栓 φ 4 6 :伸縮構件 48 :母螺紋構件 5 0 :公螺紋構件 5(Γ :操作桿 52 :棒狀構件 54 :螺栓 58 :棒狀構件 60 :螺栓 6 1 :道釘 -15- 200940220 62 :凹部 64 :凹部 66 :連接構件200940220 VI. Description of the Invention: [Technical Field] The present invention is mainly a rotary cutting device that performs necessary operations such as perforation on a workpiece such as a C-shaped steel, and particularly relates to: a device for fixing to a workpiece Rotary cutting device for the fixture. [Prior Art] Φ This type of rotary cutting device is generally formed by mounting a fixing device on the lower surface of the rotary cutting device body, and the fixing device is a pair of holding members that are fixed to a workpiece such as C-shaped steel and are facing each other. The grounding members are arranged in parallel, and the pair of holding members are supported by the guiding members so as to be close to or separated from each other, and the two screws that "provide the left and right threads in the holding member" are engaged by the screw lock, and the two screws are rotated. The holding member can be moved close to each other along the guiding member to form a workpiece to be held between them (for example, refer to Patent Document 1).专利 [Patent Document 1] Japanese Patent No. 2537115 [Disclosed] [Problem to be Solved by the Invention] This type of rotary cutting device is transported to the work site, and the operator performs the work of locking and fixing the work to be processed. It is very common, therefore, that the rotary cutting device has a need for lighter weight, but in the above-described type of fixing device, since the guide member for guiding the holding member is required to have a large weight, it has a problem of difficulty in operation. -5- 200940220 In view of the above problems, it is an object of the present invention to provide a rotary cutting apparatus that is easy to operate by further reducing the weight of the fixing device. [Means for Solving the Problem] In other words, the present invention provides a rotary cutting device with a fixing device having a rotating cutting device body (in the embodiment described below) And a fixing device (24) mounted on the rotating cutting device body, the rotating cutting device body being detachably fixed to the workpiece, the fixing device (24) having a frame (26) to which the rotating cutting device body (22) is attached; and a pair of holding members (36) that are held in parallel with each other in parallel The frame is pivotally mounted to the frame with a pair of pivot axes (A) as a center, and the pair of holding members (36) respectively have a holding portion (38) that faces each other The grounding member is disposed on a front end side separated from the pivot axis (A) to form a workpiece (W) capable of holding the workpiece; and a telescopic member (46) disposed on the pair of holding members (36) ) and can link the pair The line of the pivot axis (A) expands and contracts in a parallel direction and is pivotally supported by the pair of holding members (36); -6-200940220 and a connecting member (66), the connecting member (66) makes the member (36) The other holding member is pivoted in the direction of its pivot axis (A) when it is moved in a clockwise or counterclockwise direction around one of the holding members. In the fixing device of the rotary cutting device, the clamping structure φ is not moved in parallel as in the conventional device, but is processed by pivoting, and since the guiding member for guiding the holding member is not required, it can be formed. Lightweight. Therefore, the operator can easily set the cutting device to the desired position. Specifically, the frame body (26) has a base workpiece contact portion (32) attached to the rotary cutting device body (22), and the workpiece contact portion (32) is brought into contact with the workpiece In the processed state, the workpiece can be held by the holding portion (38). More specifically, the base portion (28) of the frame body (26) is a leg portion extending from both side edges of the plate-like base portion (28) (the workpiece abutting portion (32) is from the foot The front end of the portion is bent, and the bent front end portion can face the base portion (the direction of the surface abuts against the workpiece (W). A pair of gripping pivot axes (A-direction pivots around the opposite a member (36) and holding the fixed member and its associated (W), and (W) of the object (W), and having a separation from the front end portion 28) 7- 200940220 The holding portion (38) of the pair of holding members (36) has a spike protruding in a direction facing each other. When the workpiece is held, the spike is preferably made of a workpiece (w) In the above case, when the above-mentioned holding portion (38) of the holding member (36) holds the workpiece (W), the spike is preferably formed to extend more vertically from the pivot axis ( A) The line connecting the lines of the pivot axis (A) is further inside. With the above description, the spike can act on the workpiece ( W) The force pushed up toward the frame ❹ body (26) is formed to hold the workpiece more strongly. The above-mentioned telescopic member is composed of: a female screw member (48) pivotally supported by one of the holding members (36) And the twist lock is engaged with the female screw member (48) and is formed by a male screw member (50) pivotally supported by the other holding member (36). The pair of holding members (36) are respectively Forming, and integrally forming a C-shaped member: a plate-like central plate portion (36-1) extending further outward than the pivot axis (Α) and parallel to the pivot axis; from the central 0-plate portion Two side edges of the extending direction of the pivot axis (Α), a pair of side plate portions (36-2) extending toward the other holding member (36); the holding portion (38) is fixed to the central plate portion (36) a plate-shaped member of -1), wherein the telescopic member (46) is disposed between the center plate portions (36-1) of the holding member (36), and the two ends thereof are respectively supported by the holding members (36) The two side plate portions (36-2) are pivotally supported. Further, the two side plate portions (36-2) of the pair of holding members (36) have: The holding members (36) are provided with the connecting members (66) between the adjacent side plates in a state in which the respective pivot axes are in the center of -8-200940220 and simultaneously rotated in opposite directions to each other. Specifically, the edges of the pair of plate members (36-2) of the pair of holding members (36) have mutually adjacent arcuate recesses (62, 64), and the connecting member (66) It may be fitted in a slightly circular space defined by the concave portions facing each other. In another aspect, the connecting member may be configured such that the two φ pairs of the holding members (36) are on both side plates ( 36-2) Gear teeth formed by intermeshing edges that are close to each other are formed. [Embodiment] Hereinafter, an embodiment of a rotary cutting device of the present invention will be described based on the drawings. Fig. 1 is a view showing a rotary cutting device 10 of the present invention. As shown in the figure, the rotary cutting device 1A has a rotary cutting device φ body 22 having an electric motor 12 and a plurality of gears 161 jin driven by an output shaft 14 coupled to the electric motor. A gear row 16 is formed, a shaft 18 that is rotationally driven by the gear train, a cylindrical rotary cutting tool 20 attached to the lower end of the shaft, and a rack and pinion device 21 that urges the shaft to move up and down. The rotary cutting device body 22 is well known to the person skilled in the art, and a detailed description thereof will be omitted. Further, the rotary cutting device body is provided with an oil supply device which is configured by supplying cutting oil from the outside to the nozzle 25 of the cylindrical cutting tool 20; and the oil supply groove 23; and the available cutting oil is supplied The oil supply pipe 27 to the nozzle of the oil groove; and -9-200940220, the manual pump 29 and the check valve 31 interposed in the oil supply pipe, and the operator can press the manual pump 29 to be composed of elastic members such as rubber The hat-shaped pump member 29 is used to perform oil supply. The fixing device 24 is provided at a lower portion of the rotary cutting device body 22, and the fixing device 24 is for fixing the rotary cutting device body to a workpiece W to be perforated, such as a C-shaped steel. The fixing device 24 has a frame 26 that is attached and fixed to the rotating cutting device body 22. The frame body 26 has a plate-like base portion 28 extending to the right and left sides of the base portion in the viewing angle of Fig. 1, and a pair of leg portions 30 extending from the left and right ends of the base portion to the lower side, and the front end of the leg portion is oriented to the left and right The workpiece abutting portion 32 that is horizontally curved outward in the direction. As shown in FIGS. 3 and 4, the leg portion 3〇 is formed in a T-shape as a whole, and is continued from the wide portion 30-1 of the base portion 28 and continues from the wide portion 30-1. The narrow portion 30-2 is formed. The base portion 28 is fixed to the rotary cutting machine body 22, and the workpiece abutting portion 32 abuts against the workpiece W when the punching operation is performed. The base portion 28 and the narrow portion 30-2 which is narrower than the base portion are provided with an opening 28-1 and an opening 30-2 as shown in Figs. 5Q and 2, respectively. The fixing device 24 further includes a pair of holding members 36 that are spaced apart in the left-right direction shown in FIGS. 2 to 4 and that extend perpendicularly to the paper surface of each of the drawings. The pivot axis A is centered and is pivotally mounted to the frame 26. Each of the holding members has a holding portion 38 which is provided opposite to each other on the front end side separated from the pivot axis a to form a workpiece W. Specifically, as shown in the bottom view of Fig. 5, each of the holding members 36 is formed by the center plate-10-200940220 portion 36-1 and from the center plate portion (viewed from the perspective of Fig. 5) A C-shaped member formed by the side plate portions 36-2 extending at the upper and lower ends. The holding portion 38 is attached to the center plate portion 36-1 by a bolt 39, and is formed of a plate-like member extending in the left-right direction as viewed from the perspective of the first drawing. Between the wide portion 30-1 of the leg portion 30 (Fig. 3 'Fig. 4) is provided: a cylindrical female body extending along the pivot axis A and having an end face contacting the inner wall surface of the wide portion 3〇_i a threaded member (not shown in the drawing), and the bolt 40 is made from the outer side of the side plate portion 36-2 of the holding member 36 at the position "the position at which the joint touches the outer wall portion of the wide portion 3 0-1" ( Fig. 2) by means of the two side plate portions 36-2 and the wide width portion 30-1, the two pieces of the female screw member are screwed and locked, whereby the holding member 36 is pivoted with the pivot axis A as a center. At the foot 3 0. The fixing device 24 further has a telescopic member 46 which is disposed between the pair of holding members 36 and which is expandable and contractable in a parallel direction on a line connected between the pivot axes a, and is supported by the pair of holding members 36 ❹ The pivot. Specifically, as shown in FIGS. 3 and 4, the telescopic member 46 has a female screw member 48 pivotally supported by a pivot axis b as a center, and has another female grip member 36 at the other grip member 36. The pivot axis B is pivoted as a center, and the twist lock is engaged with the male screw member 50 of the female screw member 48. More specifically, the male screw member 50 is provided with a rod-shaped member 52 which is an axis orthogonal to the longitudinal direction of the male screw member 5 and extends along the pivot axis B until reaching the two holding members 36 The bolts 54 passing from the outer sides of the side plate portions 36-2 of the holding members 36 are screwed to the both ends of the rod-shaped members from the inner wall surface of the side plate portion 3 6 - 2, -11 - 200940220 The screw member 50 is centered on the pivot axis B, and is formed to be pivotable to (the both side plate portions) of the holding member 36. Also, a female member 58 is provided in the female screw member 48. The rod member 58 is an axis orthogonal to the longitudinal direction of the female screw member, and penetrates the female screw member 48 along the pivot axis B (Fig. 1), and extends. To the inner wall surface of the side plate portions 36-2 of the holding members, bolts 60 passing from the outer sides of the side plate portions 3 6-2 of the holding members 36 are screwed to both ends of the rod-shaped members, so that the mother The threaded member 48 is centered on the pivot axis B, and is formed to be pivotable to the grip member 36. The male screw member 50 is provided with an operating lever 5 at the left end of the angle of view of FIG. 3 (Γ, the operating lever 5 is used to rotate the male threaded member with its axis as the center, and is adjusted between the female screw member 48 and the female screw member 48. After the screwing, the telescopic member 46 is caused to expand and contract. The center plate portion 36-1 of the left side gripping member 36 at the viewing angle of Fig. 3 is provided with an opening 36-Γ for the outer side of the gripping member 36. The grip member 36 on the right side is also provided with the same opening 36-K. The operator can perform the operation of holding or fixing the workpiece W by the holding member 36 by holding the lever and rotating it. The side plate portions 3 6 2 of the holding member 36 are disposed adjacent to each other, and are provided with opposing semicircular recesses 62 and 64 at the adjacent edges, and a circular connecting member 64 is fitted between the recesses. The connecting member 66 When one of the holding members 36 is pivoted in either the clockwise direction or the counterclockwise direction around the pivot axis A, the other holding member 36 is pivoted in the opposite direction around the pivot axis A Move and prevent two holding members from facing the same side -12- 200940220 As shown in Fig. 2 to Fig. 4, the holding portion 38 of the holding member 36 is provided with spikes 61 which are slightly protruded in the direction facing each other, and hold the workpiece W In the embodiment shown in the drawings, it can be clearly seen from the fourth embodiment that when the holding portion 38 of the holding member 36 holds the workpiece W, the connection is made. The line of the front end of the spike 61 and the pivot axis A" of the holding member 36 of the spike is perpendicularly extended from the pivot axis A of the holding member provided with the spike to The line of the line connecting the pivot axes A of the two pivot members to each other is inclined further, and the spikes 61 are formed to extend perpendicularly to the line connecting the pivot axes A from the pivot axis A. When one wire is further inside, the spike 61 is a force that acts to lift the workpiece upward. Although the embodiment of the present invention has been described above, the present invention is not limited to the above description. For example, the edges of the two side plate portions 3 6-2 adjacent to each other can also be formed with respective The pivot axis has a circular arc shape as a center, and is provided with gear teeth that mesh with each other. [Simplified description of the drawings] Fig. 1 is a partial cross-sectional side view of a rotary cutting device including the fixing device of the present invention. Fig. 2: Fig. 3 is a side view of the longitudinal cutting of the same fixing device, showing a state in which the holding member is not gripped by the workpiece. -13- 200940220 Fig. 4 : is a side view of the longitudinal cut of the same fixing device, showing the state in which the holding member holds the workpiece. Fig. 5: a bottom view of the same fixing device. [Description of main components] A: pivot axis B: Pivot axis W: workpiece 1 〇: rotary cutting device 12: electric motor 14: output shaft 1 6 : gear train 1 : gear 18 : shaft 20 : rotary cutting tool 2 1 : rack pinion device 22 : rotary cutting device Main body 2 3 : Oil supply tank 24 : Fixing device 25 : Nozzle 26 : Frame 27 : Oil supply pipe 2 8 : Base 28-1 : Opening 14 - 200940220 29 : Manual pump 29 > : Hat-shaped pump member 30 : Foot 3 0 -1 : wide section 30-2: narrow width portion 30-2': opening 3 1 : check valve φ 32: workpiece abutting portion 36: holding member 36-1: center plate portion 3 6-1': opening 36-2: Both side plate portions 3 8 : gripping portion 3 9 : bolt 40 : bolt φ 4 6 : telescopic member 48 : female screw member 5 0 : male screw member 5 (Γ : operating lever 52 : rod member 54 : bolt 58 : rod shape Member 60: Bolt 6 1 : Dowel -15 - 200940220 62 : Recess 64 : Recess 66 : Connecting member
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