,1304004 九、發明說明： 【發明所屬之技術領域】 本發明係與夾頭有關，特別指一種夾持鑽孔刀具之夾頭裝置，該失頭 裝置之特徵在於具有自動鎖定鑽孔刀具之功能。 【先前技術】 關於鑽孔刀具夾頭之核心技術，概係由一主軸、若干爽爪及一螺帽所 構成。主軸中央設-軸孔，供一鑽孔刀具之固定端穿設其中；該主轴轴壁 上設若干夾祕，做爪穿設其巾。該魏設核制面以及驗面，該夹 制面朝向該錄的軸孔，該螺紋面醜露於錄外。_設於主軸外並與 若干夾爪之螺紋面螺合，正向或反向地旋轉螺帽可使若干夾爪同步往前或 往後移動。往前移動時若干夾爪的夾伽將產生—向主錄^方向的失制 力夾緊鑽孔刀具。反之，往後移動時，夾制面將脫離該鑽孔刀具。 上述夾頭核心結構被設置在一外殼中，而控制上述螺帽正、反轉的結 構被建立於外殼上，以便使用者可以徒手控制。 【發明内容】 本案係在上述夾頭之核心技術上實施新的構想，該構想可使夾頭具有 自動夾持鎖緊鑽孔刀具之功能。除此之外，談夾頭可依使用者的選擇而產 生持續性的間歇衝擊力，該衝擊力是為了消除螺帽與夾爪螺紋面的螺紋嚙 合間隙，使螺帽更加鎖緊夾爪，使夾爪更夾緊該鑽孔刀具，以對抗作用於鑽 孔刀具的阻力。 本案自動鎖定夾頭，主要包含一主軸，中央設一軸孔，供一鑽孔刀具 之固定端穿設；該主軸之軸壁上設若干夾爪孔；若干夾爪，—穿設於上</ RTI> </ RTI> </ RTI> </ RTI> </ RTI> </ RTI> </ RTI> </ RTI> </ RTI> </ RTI> </ RTI> </ RTI> </ RTI> </ RTI> </ RTI> </ RTI> </ RTI> </ RTI> </ RTI> <RTIgt; . [Prior Art] The core technology of the drilling tool chuck is composed of a main shaft, a plurality of cool claws and a nut. The center of the spindle is provided with a shaft hole for the fixed end of a drilling tool to be inserted therein; the spindle shaft wall is provided with a plurality of clips, and the claws are provided with the towel. The core surface and the inspection surface, the clamping surface faces the recorded shaft hole, and the thread surface is ugly. _ is disposed outside the main shaft and screwed with the thread faces of the jaws. Rotating the nut forward or reverse causes the jaws to move forward or backward simultaneously. The clamping of several jaws when moving forward will result in a force-free clamping of the drilling tool in the direction of the main recording. Conversely, when moving backwards, the gripping surface will disengage from the drilling tool. The core structure of the above chuck is disposed in a casing, and the structure for controlling the forward and reverse of the nut is built on the casing so that the user can control it by hand. SUMMARY OF THE INVENTION The present invention implements a new concept on the core technology of the above-mentioned chuck, which enables the chuck to have the function of automatically clamping and locking the drilling tool. In addition, the collet can produce a continuous intermittent impact force according to the user's choice, which is to eliminate the thread engagement gap between the nut and the claw thread surface, so that the nut locks the jaw more. The jaws are more clamped to the drilling tool to counter the resistance acting on the drilling tool. The automatic locking chuck of the present case mainly comprises a main shaft, and a shaft hole is arranged in the center for the fixed end of a drilling tool; the shaft wall of the main shaft is provided with a plurality of clamping jaw holes; a plurality of clamping jaws are disposed on the upper side
1304004 述夾爪孔t ’每—夾爪設有_夾制面及—螺紋面，該失制關向該轴孔， 該螺紋_露_主餅；—職，樞套於該錄外，其_牙與該夹爪 之螺紋面螺合；該螺帽之其卜緣面塊干凸齒；-衝擊外殼，被固定1304004 The clamping jaw hole t 'per-jaw is provided with a _ clamping surface and a thread surface, the missing system is closed to the shaft hole, the thread _ dew_main cake; - the position is pivoted outside the recording, _The tooth is screwed with the thread surface of the jaw; the nut has a dry convex tooth on the edge of the nut; the impact shell is fixed
於《亥夾頭_力源外殼上H動部件；_衝擊環，樞套於上述主轴外 並旋蚊位於該衝擊外_，其姆該螺帽的凸鱗面上設有若干凸齒及 齒脊；一彈簧，設於該衝«與衝擊外殼⑽；該彈簧使該衝擊環向該螺 帽靠合·’該衝擊環之凸齒位於該螺帽之各凸齒之間；該齒脊則位於該螺帽 之外圍’ k轉上殼，相對套合於±述衝擊外殼之端部，可在一限定範圍 内被轉動；—離合耐磨片’被旋向定位於該旋轉上殼中而位於該螺帽外圍 並與该衝擊環之齒脊相對；該離合耐磨片與該齒脊相對之環緣财若干間 隔排列的深齒槽及淺齒槽，供該齒脊嵌入。 、本案達成目的及功效之-，魏動_之動力源,依動力賴轉動方向 而達到夾爪自姆錢孔刀具或鬆放鑽孔77具。In the "Hail Chuck _ force source shell on the H moving parts; _ impact ring, pivoted outside the above-mentioned main shaft and the mosquitoes are located outside the impact _, the nut of the nut has a number of convex teeth and teeth a ridge; a spring disposed on the punch and the impact shell (10); the spring abuts the impact ring toward the nut. The convex tooth of the impact ring is located between the convex teeth of the nut; the ridge is Located at the periphery of the nut, the 'k turns the upper casing, and is oppositely fitted to the end of the impact casing, and can be rotated within a limited range; the clutch wear piece is rotated and positioned in the rotating upper casing. The outer periphery of the nut is opposite to the ridge of the impact ring; the clutch wear plate is spaced apart from the ridge by a plurality of spaced apart deep and shallow slots for the ridge. In this case, the purpose and effect of the case--Wei _ _ the power source, according to the direction of rotation of the power to reach the jaws from the money hole tool or loosely drilled 77.
案達成目的及功奴―，齡上述離合耐磨Μ錢賴與該衝擊 環的齒脊相對結合時， 該衝擊％被往離開該螺帽的方向糊，使螺帽之凸 齒與該衝擊環之凸齒沒有交錯相對，該衝擊環未對螺 此螺帽得以隨著主軸以及夾爪順暢的轉動。 帽造成任何干涉，因 案達成目的及功效之二，齡±述離合耐磨#以其_槽供該衝擊 環的齒脊嵌人，職的凸齒與該衝擊環之凸齒交錯姆，當_帽隨著主 轴以及夾爪轉_，會推抵該衝擊環之凸齒，使被旋向定位在衝擊外殼中 的衝擊環產生軸線方向的往復移動，對該螺帽形成反覆的撞擊，消除該螺 1304004 重扭力之輪 帽之内螺牙與夹爪之螺紋面螺合_，使螺帽與夹爪更加緊密鎖緊古 夾爪提供該鑽孔刀具更穩固更緊的夾持力，因此刀具可以發揮'、3亥 出’突破鑽孔面之阻力。 本案達成目的及功效之四，係本案衝擊外殼及旋轉上殼均為不隨主轴 轉動的不動部件，對補作者而言縣_種安全轉。 【實施方式】 如第一、二、三圖，本案自動鎖定夾頭，主要包含·· 主軸（10) ’中央設一軸孔⑴），供一鑽孔刀具㈣之固定端穿設； 該主軸軸壁上設若干夾爪孔（12); 若干夾爪⑽，一穿設於上述夾爪孔⑽中，每—夾爪⑽)設有一 夾制面⑵)及-螺紋面(22)，該夾制面⑻朝向該軸孔⑴），該螺紋面⑽ 顯露於主軸（10)外； -螺帽⑽，樞套於上駐軸（1G)外，其㈣牙（31)與該夾爪(20)之 螺紋面（22)螺合；該螺帽⑽之其中—緣面上設若干凸齒（32); -衝擊外殼(40)，被固定於本案夾頭的動力源外殼（圖未示），為一不 動部件； 一衝擊環(50)，樞套於上述主軸(1〇)外並旋向定位於該衝擊外殼(4〇) 内，其相對該螺帽（30)的凸齒（32)環面上設有若干凸齒（51)及齒脊(52); 一彈簧（55) ’設於該衝擊環(5〇)與衝擊外殼(4〇)之間；該衝擊環(5〇) 因該彈簧（55)而可於該衝擊外殼(4〇)中往復移動，且該彈簧使該衝擊 %(50)常態地向該螺帽（3〇)靠合，該衝擊環(5〇)之凸齒（51)位於該螺帽(30) 1304004 之各凸齒（32)之間；該齒脊(52)則位於該螺帽（30)之外圍； 一旋轉上殼(60)，相對套合於上述衝擊外殼(4〇)之端部，可在一限定 範圍内被操作者轉動； 一離合耐磨片（70)，被旋向定位於該旋轉上殼(60)中而位於該螺帽(3〇) 外圍並與該衝擊環(50)之齒脊(52)相對·,該離合耐磨片（7〇)與該齒脊(52) 相對之環緣設有若干間隔排列的深窗槽⑻及淺齒槽(72);當該齒脊⑽ 位於深齒槽(71)中，該衝擊環⑽之凸齒⑸）位於該螺帽(3〇)之各凸齒⑽ 之間；當該齒脊(52)位於淺齒槽(72)，該衝擊環(5〇)被推離該螺帽⑽； 一組旋調指標（80)，分別設於該旋轉上殼⑽)與衝擊外殼⑽表面的 相對位置，絲表社赫脊(52)係錄深祕(71)錢赖⑽中。 以上所述係本案之主要技術構想，該構想可產生以下的功能·· 啟動本案躺之動力源，該動力源帶觸絲⑽朝作用方向轉動 夺 '上❸夾爪(2〇)跟著轉動，該爽爪(2〇)之螺紋面（22)配合該螺帽⑽） 之内螺牙（31)，使若干夾爪⑽)產生同步移動，若干夾爪⑽)之夾制面⑵） 產生-向主軸⑽軸心方向的夾制力夾緊該鑽孔刀具⑽）。該夾爪⑽因 已緊夾该鑽孔刀具(90)而無法再移動，其螺紋面（22)與螺帽⑽的内螺牙 (31)即呈鎖緊狀態，該螺帽⑽此時才開始隨著炎爪⑽)轉動。反之，該 動力源帶動該主軸⑽朝非作用方向轉動時，該夾爪⑽與螺帽⑽即鬆 動使夾爪(20)失去往主軸（1〇)轴心方向的夾制力，因而鬆釋該鑽孔刀具 ⑽）值知特別說明者’因為衝擊外殼⑽)被固定於本案爽頭的動力源外 ,又上為顿主軸（1〇)轉動的不動部件，旋轉上殼⑽)被定位在該衝擊 8 1304004 外殼而成為-不動部件。如第―、二、三圖，該衝擊外殼⑽底部設有一 供動力軸穿人連結触㈣孔⑹，該孔⑹的週緣相齡置設有扇形口 (42)。-連結塊⑽襯設於上述科(55)與該衝擊外殼⑽底部之間，該 連結塊(92)有二凸出的連結柱⑽穿伸出扇形口⑽外，其端部頂制於動 力源外殼上。上航⑹巾輯—耐雜_4)以及—定鱗(95)固定於 主轴⑽端部的定位槽(⑷中，即使主軸⑽轉動亦不影響該衝擊外殼⑷) 之不動性。 關於雜擊外殼(40)於本案實施例中係如何將該衝擊環⑽旋向限位 於其中。如第三圖，該衝擊外殼(4〇)内部以及衝擊環⑽）外部設有可相對 結合的限位條(43)及限位槽⑽，舰位條⑷)及限位槽⑽使衝擊環⑽ 被旋向限位於該衝擊外殼⑽内部，但卻可以沿著軸方向穩魏往復位移。 關於該旋轉上殼(60)於本案實施例中係如何將該離合耐磨片（7〇)旋向 限位於其中。如第三圖，該旋轉上殼(6〇)内壁設一承托該離合耐磨片（刊） 的階層（61);該旋轉上殼(6〇)内壁以及離合耐磨片（7〇)之外部設有可相對 結合的限位條(62)及限位槽（73)，該限位條(62)及限位槽（73)使該離合耐 磨片（70)被旋向限位於該旋轉上殼(6〇)内部，因此會隨著該旋轉上殼 轉動。該階層（61)則與衝擊環(5〇)相對將離合耐磨片（70)軸向定位在旋轉 上殼(60)中。 關於4疑轉上设(60)於本案實施例中係如何於該衝擊外殼(仙）的端部 在一限定範圍内被操作者轉動。如第二、三、六、七圖，該衝擊外殼(4〇) 外部設有兩道彈片槽（44)(45)，該旋轉上殼（6〇)内壁預埋一弓型彈片 1304004 (63) ’其弓凸^可肷人娜片槽(44)，並因該旋轉外殼⑽)被旋動而脫離 該彈片槽(44)。當弓型彈片⑽位於其中一彈片槽⑽時，表示該衝擊環 (50)的齒脊⑽嵌人該離合耐磨片⑽的深齒槽(71)中，該衝擊環⑽會 如上所述地反覆撞擊該螺帽(30)，如第四圖。當弓型彈片⑽位於另一彈片 槽(45)時，表示該衝擊環⑽的齒脊⑽相對結合於該離合耐磨片(7〇)的 淺齒槽(72)巾，該衝擊環⑽)未觸帽⑽造成干涉，如第五圖。 關於設在該旋轉上殼⑽以及衝擊外殼⑽表面的旋調指標⑽，如 ►第二圖。本案實施例包括一設在該旋轉上殼⑽)外表面的指點符號㈤， 符號(82)形式不拘，以能使操作者瞭解其所代表之意義即可。轉動該旋轉 上殼(60)以該指點符號(81)相對於其中一圖形符號⑽，表示該衝擊環(5〇) 會如上所述地反覆撞擊賴帽⑽）。姆於另符號⑻），表示衝擊 環(40)未對螺帽(30)造成干涉。 . 復如第二®，該主軸（1G)之環座⑽上套—主減套（⑶，以防止螺 帽（30)或衝擊環(40)磨擦該主軸（1〇)。該螺帽（3〇)與該主轴（1〇)之環座 (16)(亦或主軸護套（13))之間設-第—組潤滑鱗⑶），該潤滑組件⑶） 可在本案夹頭發揮自動夾鎖鑽孔刀具之初期，該螺帽（3〇)尚未隨夾爪(2〇) 轉動時，做為該螺帽（30)與主軸護套(13)之間的潤滑。該主軸（1〇)之端部 緊配一鼻端固定塊(96)，於該螺帽（3〇)與該鼻端固定塊(96)之間設一組限 位墊圈（97)，該限位墊圈（97)的端部外套設第二組潤滑組件（65)，並以設 於該主軸（10)之定位槽（15)的定位件(98)予以定位。 1304004 雖然本案是以一個最佳實施例做說明，但精於此技藝者能在不脫離本 案精神與範疇下做各種不同形式的改變。以上所舉實施例僅用以說明本案 而已’非用以限制本案之範圍。舉凡不違本案精神所從事的種種修改或變 化，倶屬本案申請專利範圍。 【圖式簡單說明】 第一圖係本案之組合外觀圖。 第-圖係與第―圖不㈤視肖的組合外觀圖。 第三圖為本案立體分解圖。 第四圖為本案組合剖面圖 ，表示於衝擊狀態。 弟五圖為本案組合剖面圖 ，表示於非衝擊狀態。 第六圖為第四圖中β—6剖面圖。 第七圖為第五圖中7-7剖面圖。 【主要元件符號說明】 10-主轴 42〜扇形口 71-深齒槽 11-轴孔 限位條 72-淺齒槽 12-夾爪孔 4 ‘彈片槽 73-限位槽 13-主軸護套 45〜彈片槽 80-旋調指標 14-定位槽 〜衝擊環 81-指點符號 15_定位槽 51〜凸齒 82-圖形符號 20-夾爪 52〜齒脊 83-圖形符號 21-夾制面 53〜限位槽 90-鑽孔刀具 12 1304004 22-螺紋面 55-彈簧 92-連結塊 30-螺帽 60-旋轉上殼 93_連結柱 31-内螺牙 61-階層 94-耐磨墊圈 32-凸齒 62-限位條 95-定位件 33-第一組潤滑組件 63-弓型彈片 96-鼻端固定塊 40-衝擊外殼 65-第二組潤滑組件 97-限位墊圈 41-孔 70-離合财磨片 98-定位件 13The purpose of the case is to achieve the goal and the slave. When the age of the clutch is relatively combined with the ridge of the impact ring, the impact % is removed from the direction of the nut, so that the convex tooth of the nut and the impact ring The convex teeth are not staggered, and the impact ring is not screwed smoothly with the main shaft and the jaws. The cap causes any interference, because the purpose and effect of the case are the second, the age of the clutch is wearable. The ridge is provided with the ridge of the impact ring, and the convex teeth of the position are interlaced with the convex teeth of the impact ring. _The cap rotates with the main shaft and the jaws, and pushes against the protruding teeth of the impact ring, so that the impact ring that is rotated and positioned in the impact shell generates a reciprocating movement in the axial direction, and the nut is repeatedly impacted and eliminated. The thread of the snail 1304004 heavy-torque wheel cap is screwed with the thread surface of the jaw _, so that the nut and the jaw are more tightly locked, and the ancient clamping jaw provides a more stable and tight clamping force of the drilling tool, so The tool can play the ', 3 hai out' breakthrough resistance to the drilling surface. The purpose and effect of the case are the fourth, the impact shell and the rotating upper shell are the non-moving parts that do not rotate with the main shaft, and the county is safe to turn to the author. [Embodiment] As shown in the first, second and third figures, the chuck is automatically locked in this case, mainly including: · The main shaft (10) 'the center is provided with a shaft hole (1)) for the fixed end of a drilling tool (4); the spindle shaft a plurality of jaw holes (12) are disposed on the wall; a plurality of jaws (10) are disposed in the jaw holes (10), each of the jaws (10) is provided with a clamping surface (2) and a thread surface (22), the clamp The face (8) faces the shaft hole (1)), the thread face (10) is exposed outside the main shaft (10); the nut (10) is sleeved outside the upper axle (1G), and the teeth are (4) and the jaw (20) The threaded surface (22) is screwed; the nut (10) has a plurality of convex teeth (32) on the rim surface thereof; - the impact shell (40) is fixed to the power source housing of the chuck of the present case (not shown) a non-moving component; an impact ring (50), pivoted outside the main shaft (1〇) and rotated in the impact casing (4〇), opposite to the nut (30) of the convex tooth (32) The ring surface is provided with a plurality of convex teeth (51) and a ridge (52); a spring (55) ' is disposed between the impact ring (5〇) and the impact casing (4〇); the impact ring (5〇 ) the shock shell (4〇) due to the spring (55) Reciprocatingly moving, and the spring causes the impact %(50) to normally abut against the nut (3〇), the convex tooth (51) of the impact ring (5〇) is located at each convex of the nut (30) 1304004 Between the teeth (32); the ridge (52) is located at the periphery of the nut (30); a rotating upper shell (60), oppositely fitted to the end of the impact shell (4 〇), can be Rotating by the operator within a limited range; a clutch wear plate (70) is pivotally positioned in the rotating upper casing (60) and located at the periphery of the nut (3〇) and with the teeth of the impact ring (50) The ridge (52) is opposite to the rim (7 〇) and the rim (52) opposite the rim is provided with a plurality of spaced apart deep window grooves (8) and shallow gullets (72); when the ridge (10) Located in the deep cogging (71), the protruding teeth (5) of the impact ring (10) are located between the convex teeth (10) of the nut (3); when the ridge (52) is located in the shallow cogging (72), The impact ring (5〇) is pushed away from the nut (10); a set of knobs (80) are respectively disposed on the opposite position of the rotating upper shell (10) and the surface of the impact shell (10), and the wire table (52) is Recorded in the secret (71) Qian Lai (10). The above is the main technical concept of the case, the concept can produce the following functions: · Start the power source of the case, the power source with the touch wire (10) in the direction of action to turn the 'upper jaw (2 〇) to follow the rotation, The threaded surface (22) of the cooling claw (2) cooperates with the internal thread (31) of the nut (10) to synchronously move the plurality of jaws (10), and the clamping faces (2) of the plurality of jaws (10) are generated - The drilling tool (10) is clamped by the clamping force in the direction of the spindle (10). The clamping jaw (10) can no longer move because the drilling tool (90) is clamped, and the threaded surface (22) and the internal thread (31) of the nut (10) are locked, and the nut (10) is only Start to rotate with the inflammation claw (10). Conversely, when the power source drives the main shaft (10) to rotate in the inactive direction, the clamping jaws (10) and the nut (10) are loose, so that the clamping jaws (20) lose the clamping force in the axial direction of the main shaft (1〇), thereby releasing the clamping force. The value of the drilling tool (10) is specifically described as 'because the impact casing (10)) is fixed to the power source of the cool head of the present case, and the fixed part of the spindle (1〇) is rotated, and the rotating upper casing (10) is positioned at The impact of the 8 1304004 outer casing becomes a non-moving component. For example, in the first, second and third figures, the bottom of the impact casing (10) is provided with a power shaft for wearing a contact (four) hole (6), and the hole (6) is provided with a fan-shaped opening (42) at the periphery of the hole. - a connecting block (10) is disposed between the above-mentioned section (55) and the bottom of the impact casing (10). The connecting block (92) has two protruding connecting columns (10) extending beyond the fan-shaped opening (10), and the ends are topped by the power On the source housing. The navigation (6) towel series - resistant to _4) and the fixed scale (95) are fixed to the positioning groove at the end of the main shaft (10) ((4), even if the main shaft (10) rotates, it does not affect the immovability of the impact casing (4)). Regarding the miscellaneous casing (40), in the embodiment of the present invention, the impact ring (10) is screwed to the limit. As shown in the third figure, the inside of the impact casing (4〇) and the impact ring (10) are provided with a detachable limiting strip (43) and a limiting slot (10), a position bar (4)) and a limiting slot (10) for the impact ring. (10) The direction of rotation is limited to the inside of the impact casing (10), but it can be reciprocally displaced along the axial direction. With regard to the rotating upper casing (60), in the embodiment of the present invention, the clutch wear plate (7 turns) is located therein. As shown in the third figure, the inner wall of the rotating upper casing (6〇) is provided with a layer (61) supporting the clutch wear plate (s); the inner wall of the rotating upper casing (6〇) and the clutch wear plate (7〇) The outer portion is provided with a pair of limiting strips (62) and a limiting slot (73). The limiting strip (62) and the limiting slot (73) position the clutch wear plate (70) This rotates the inside of the upper casing (6 inches) and thus rotates with the rotating upper casing. This level (61) axially positions the clutch wear plate (70) in the rotating upper casing (60) opposite the impact ring (5 〇). Regarding the four suspected tops (60), in the embodiment of the present invention, the end portion of the impact casing (sinus) is rotated by the operator within a limited range. For example, in the second, third, sixth and seventh figures, the outer casing (4) is provided with two elastic groove (44) (45), and a cylindrical elastic piece 1304004 is embedded in the inner wall of the rotating upper casing (6〇). ) 'The bow protrusion ^ can be smashed into the slot (44) and is rotated by the rotating housing (10) to disengage from the spring slot (44). When the bow-shaped elastic piece (10) is located in one of the elastic groove (10), it indicates that the ridge (10) of the impact ring (50) is embedded in the deep tooth groove (71) of the clutch wear piece (10), and the impact ring (10) will be as described above. The nut (30) is repeatedly struck, as shown in the fourth figure. When the bow-shaped elastic piece (10) is located in the other elastic piece groove (45), it indicates that the ridge (10) of the impact ring (10) is oppositely coupled to the shallow tooth groove (72) of the clutch wear piece (7〇), the impact ring (10)) No contact with the cap (10) causes interference, as shown in the fifth figure. Regarding the rotation index (10) provided on the surface of the rotating upper casing (10) and the impact casing (10), as shown in Fig. 2. The embodiment of the present invention includes a pointing symbol (5) provided on the outer surface of the rotating upper casing (10), and the symbol (82) is not in a form to enable the operator to understand the meaning it represents. Rotating the rotating upper casing (60) with the pointing symbol (81) relative to one of the graphical symbols (10) indicates that the impact ring (5〇) will repeatedly impact the cap (10) as described above. The other symbol (8) indicates that the impact ring (40) does not interfere with the nut (30). As the second ®, the main shaft (1G) ring seat (10) is sleeved--the main reduction sleeve ((3) to prevent the nut (30) or the impact ring (40) from rubbing the main shaft (1〇). 3〇) Between the ring seat (16) of the main shaft (1〇) (or the spindle sheath (13)) - the first group of lubrication scales (3)), the lubrication assembly (3) can be automatically activated in the case At the beginning of the clamp-on drilling tool, the nut (3〇) is not lubricated with the jaw (2〇) as lubrication between the nut (30) and the spindle sheath (13). The end of the main shaft (1〇) is tightly fitted with a nose fixing block (96), and a set of limiting washers (97) is disposed between the nut (3〇) and the nose fixing block (96). The end of the limiting washer (97) is provided with a second set of lubricating components (65) and is positioned by a positioning member (98) provided in the positioning groove (15) of the main shaft (10). 1304004 Although the present invention is described in terms of a preferred embodiment, it is obvious to those skilled in the art that various changes can be made without departing from the spirit and scope of the invention. The above embodiments are merely illustrative of the present invention and have not been used to limit the scope of the present invention. Any modification or change that is not in violation of the spirit of the case is the scope of patent application in this case. [Simple description of the diagram] The first picture is the combined appearance of the case. The combined appearance of the first-picture and the first-figure (five) view. The third figure is an exploded view of the case. The fourth figure is a sectional view of the combination of the case, which is shown in the impact state. The fifth picture of the case is a sectional view of the case, which is shown in the non-impact state. The sixth picture is a sectional view of β-6 in the fourth figure. The seventh picture is a sectional view of 7-7 in the fifth figure. [Main component symbol description] 10-spindle 42~ sector port 71-deep slot 11-shaft hole limit bar 72-light slot 12-claw hole 4 'shrap groove 73-limit slot 13-spindle sheath 45 ~ Shrapnel groove 80 - Spin indicator 14 - Positioning groove ~ Impact ring 81 - Finger symbol 15_ Positioning groove 51 ~ Lobe 82 - Graphic symbol 20 - Clamp 52 ~ Tooth ridge 83 - Graphic symbol 21 - Clip surface 53 ~ Limiting groove 90-drilling tool 12 1304004 22-thread surface 55-spring 92-joining block 30-nut 60-rotating upper casing 93_connecting post 31-internal thread 61-level 94-wearing washer 32-convex Teeth 62 - Limiting strip 95 - Positioning member 33 - First set of lubricating assembly 63 - Bow type shrapnel 96 - Nose end fixing block 40 - Impact shell 65 - Second set of lubricating assembly 97 - Limit washer 41 - Hole 70 - Clutch Fortune sheet 98-positioning piece 13