M351120 八、新型說明： 【新型所屬之技術領域】 本創作係關於一種工具機之刀具結構，特別是用以提 供搪孔或切削內徑之刀具結構。 【先前技術】 一般切削工具是藉由刀具與工件相對運動來完成切削 • 工作。以刀具轉動的狀態爲例，該刀具通常是被安裝在一 - 刀把上，然後再將刀把安裝於工具機的主軸，藉由主軸高 ® 速旋轉來帶動刀把及刀具轉動。 請參閱第1圖，一般用以搪孔或切削內徑的刀具主要 包含一基座（12)、二刀座（14)及二刀片（16)。該二刀座（14) 係搭配複數螺絲（]8)相對地鎖設在基座Γ12)上；該二刀片 (16)係分別組設在刀座（14)的端部，且二刀片（16)之切削 刃部之間的距離，爲刀具所能切削的孔徑。 當切削孔徑不同，使用者需調整二刀片（16)之間的距 φ 離；調整方式爲先鬆開複數螺絲（18)，然後再移動相對的 二刀座（】6)至預定位置，最後再鎖緊複數螺絲（18)，使得 刀座（14)定位在基座（]2)上。 - 根據以上的調整方式，每一次調整切削孔徑，使用者 -皆需鬆開與鎖緊複數螺絲（）8)顯然會造成操作上的不方便 ，以及浪費較多時間。 【新型內容】 有鑑於先前技術所揭露的刀具結構不方便調整切削孔 徑，且操作方式費時，所以木削作提供一種創新的刀具結 5 M351120 構以解決先前技術的缺點。 本創作的主要目的係在提供一種工具機之刀具結構， 其具有能方便且快速地進行調整刀片位置的功效。 根據本創作的目的與功效，該刀具結構係包含一基座 ，一刀座可活動地組設在該基座上並於一端配置一刀片； 一調整裝置組設在該基座上且連接該刀座，藉由轉動該調 —整裝置可驅動該刀座產生線性位移，以達到方便且快速調 - 整刀具位置的功效。 * 以下即依本創作的目的、功效及結構組態，舉出較佳 實施例並配合圖式詳細說明。 【實施方式】 請參閱第2圖，本創作所揭露的刀具結構包含一基座 (20)、一刀座（30)及一調整裝置（40)。其中該基座（20)係 用以組設在工具機（未顯示）上。 請參閱第3、4圖，該基座（20)係在其徑向開設一容 • 置孔（22)。該容置孔（22)—端爲開放狀。一組裝孔（24)係 開設在基座（20)表面，該組裝孔（24)的壁靣具有螺紋（25) ，且組裝孔（24)與容置孔（22)相通。 " 該刀座（30)係呈現桿狀。該刀座（30)的一端組設在容 ' 置孔（22)內，另一端凸出基座（20)。一刀片（60)係配設在 凸出該基座（20)的刀座（30) h。値得注意的是，刀座（30) 的軸向開設有一螺紋孔（32)。當刀座（30) —端組設於容置 孔（22)內，該螺紋孔（32)與組裝孔（24)相對。 該調整裝置（40)係由一轉軸（41)及一襯套（5])所構成 -M351120 。該轉軸（41)係一軸桿（43) —端具有一轉鈕（44)，更詳細 而言，該軸桿（43)表靣具有一螺紋部（45)及一平滑部（46) ，其中該平滑部（46)位於螺紋部（45)與轉鈕（44)之間，且 一定位環槽（47)形成在該平滑部（46)的表面。該襯套（51) 係軸向具有一穿孔（52)，且襯套（5〖）表面具螺紋（54)及一 定位孔（56)沿著徑向貫穿至該穿孔（52)。 ' 該襯套（51)係組設在基座（20)的組裝孔（24)內，且螺 - 紋（54)和螺紋（25)互相嚙合。轉軸（41)的軸桿（43)由襯套 * (51)的穿孔（52)穿入且鎖入刀座（30)的螺紋孔（32)入；一 定位梢（70)由基座（20)上置入經過襯套（51)的定位孔（56) 到達軸桿（43)表面的定位環槽（47);如此該基座（20)、刀 座（30)及調整裝置（40)結合在一起。 請參閱第5圖，使用者轉動轉軸（41)的轉鈕（44)，則 軸桿（43)表面的螺紋部（45)與刀座（30)的螺紋孔（32)的螺 紋產生相對運動，可使得刀座（30)產生線性位移且藉此改 • 變刀片（60)的位置，如此便可達到改變切削半徑的目的。 根據以上所述，藉由轉動該轉軸來改變刀座位置，可 以達到改變切削半徑的目的’故本創作不但結構精簡且具 ' 有操作簡便及省時、省力的效果。 ' 上述實施例僅爲例示性說明木創作之技術及其功效， 而非用於限制本創作。任何熟於此項技術人士均可在不違 背本創作之技術原理及精神的情況下’對上述實施例進行 修改及變化，因此木創作之權利保護範圍應如後所述之申 請專利範圍所列。 7 M351120 【圖式簡單說明】 第1圖係一習用刀具結構示意圖。 第2圖係本創作外觀圖。 第3圖係本創作分解圖。 第4圖係本創作組合結構示意圖。 第5圖係本創作操作示意圖。 【主要元件符號說明】 (12)基座 (14)刀座 (16)刀片 (18)螺絲 (20)基座 (22)容置孔 (24)組裝孔 (25)螺紋 (30)刀座 (32)螺紋孔 (40)調整裝置 (41)轉軸 (43)軸桿 (44)轉鈕 (45)螺紋部 (46)平滑部 (47)定位環槽 (51)襯套 (52)穿孔 (54)螺紋 (56)定位孔 (70)定位梢 (60)刀片 8M351120 VIII. New description: [New technical field] This creation is about a tool structure of a machine tool, especially a tool structure for providing a boring or cutting inner diameter. [Prior Art] The general cutting tool performs cutting and working by the relative movement of the tool and the workpiece. Taking the state of the tool rotation as an example, the tool is usually mounted on a tool holder, and then the tool holder is mounted on the spindle of the machine tool, and the tool holder and the tool are rotated by the spindle high speed rotation. Referring to Figure 1, the tool generally used for boring or cutting the inner diameter mainly comprises a base (12), two seats (14) and two blades (16). The two holders (14) are relatively locked to the base Γ 12) with a plurality of screws (8); the two blades (16) are respectively assembled at the ends of the holder (14), and the two blades ( 16) The distance between the cutting edges is the diameter that the tool can cut. When the cutting aperture is different, the user needs to adjust the distance between the two blades (16); the adjustment method is to loosen the plurality of screws (18) first, then move the opposite two seats (6) to the predetermined position, and finally Then tighten the plurality of screws (18) so that the seat (14) is positioned on the base (] 2). - According to the above adjustment method, each time the cutting aperture is adjusted, the user needs to loosen and lock the plurality of screws () 8), which obviously causes inconvenience in operation and wastes more time. [New content] In view of the inconvenient adjustment of the cutting hole diameter and the time-consuming operation of the tool structure disclosed in the prior art, the wood cutting provides an innovative tool knot 5 M351120 to solve the disadvantages of the prior art. The main purpose of this creation is to provide a tool structure for a machine tool that has the effect of easily and quickly adjusting the position of the blade. According to the purpose and function of the present invention, the tool structure comprises a base, a knife seat is movably assembled on the base and a blade is disposed at one end; an adjusting device is disposed on the base and connected to the knife The seat can be driven to produce a linear displacement by rotating the adjustment device to achieve convenient and rapid adjustment of the position of the tool. * The following is based on the purpose, function and structural configuration of the present invention, and the preferred embodiments are described in detail with reference to the drawings. [Embodiment] Referring to Figure 2, the tool structure disclosed in the present application comprises a base (20), a holder (30) and an adjusting device (40). The base (20) is for assembly on a machine tool (not shown). Referring to Figures 3 and 4, the base (20) is provided with a hole (22) in its radial direction. The receiving hole (22) has an open end. An assembly hole (24) is formed on the surface of the base (20), the wall of the assembly hole (24) has a thread (25), and the assembly hole (24) communicates with the receiving hole (22). " The holder (30) is rod-shaped. One end of the seat (30) is disposed in the receiving hole (22), and the other end protrudes from the base (20). A blade (60) is associated with a seat (30) h projecting from the base (20). It should be noted that the tool holder (30) has a threaded hole (32) in the axial direction. When the seat (30) is assembled in the receiving hole (22), the threaded hole (32) is opposite to the assembling hole (24). The adjusting device (40) is composed of a rotating shaft (41) and a bushing (5)) - M351120. The shaft (41) is a shaft (43) having a knob (44) at its end. More specifically, the shaft (43) has a threaded portion (45) and a smooth portion (46), wherein The smoothing portion (46) is located between the threaded portion (45) and the turn button (44), and a positioning ring groove (47) is formed on the surface of the smooth portion (46). The bushing (51) has a through hole (52) in the axial direction, and the bushing (5) surface has a thread (54) and a positioning hole (56) penetrates the through hole (52) in the radial direction. The bushing (51) is assembled in the assembly hole (24) of the base (20), and the thread (54) and the thread (25) are in mesh with each other. The shaft (43) of the rotating shaft (41) is inserted through the through hole (52) of the bushing * (51) and locked into the threaded hole (32) of the seat (30); a positioning tip (70) is provided by the base ( 20) Inserting a positioning hole (56) through the bushing (51) to reach a positioning ring groove (47) on the surface of the shaft (43); thus the base (20), the seat (30) and the adjusting device (40) )integrate. Referring to Figure 5, the user rotates the rotary knob (41) of the rotary shaft (41), and the threaded portion (45) on the surface of the shaft (43) and the threaded hole (32) of the seat (30) are relatively moved. This allows the tool holder (30) to be linearly displaced and thereby change the position of the blade (60) so that the cutting radius can be changed. According to the above, by changing the position of the holder by rotating the rotation shaft, the purpose of changing the cutting radius can be achieved. Therefore, the creation is not only simple in structure but also has the advantages of simple operation, time saving and labor saving. The above embodiments are merely illustrative of the techniques of wood creation and their effects, and are not intended to limit the creation. Anyone familiar with this technology may modify and change the above embodiments without violating the technical principles and spirit of this creation. Therefore, the scope of protection of wood creation rights shall be as listed in the patent application scope mentioned later. . 7 M351120 [Simple description of the drawing] Figure 1 is a schematic diagram of a conventional tool structure. Figure 2 is an external view of the creation. Figure 3 is an exploded view of the creation. Figure 4 is a schematic diagram of the composition of the creation. Figure 5 is a schematic diagram of the creation operation. [Main component symbol description] (12) Base (14) Tool holder (16) Blade (18) Screw (20) Base (22) accommodating hole (24) Assembly hole (25) Thread (30) Tool holder ( 32) Threaded hole (40) adjusting device (41) rotating shaft (43) shaft (44) rotating button (45) threaded portion (46) smoothing portion (47) positioning ring groove (51) bushing (52) perforation (54 Thread (56) Locating Hole (70) Locating Tip (60) Blade 8