1221103 經濟部智慧財產局員工消費合作社印製 A7 B7 五、發明説明（’） 【發明所屬的技術領域】 本發明是關於鑽頭前端刀刃加工裝置，特別是關於適 合對用來在印刷電路底板（以下稱作印刷電路板）鑽孔加工的 印刷電路板用鑽頭等的小直徑鑽頭進行前端刀刃加工的鑽 頭前端刀刃加工裝置之鑽頭保持單元。 【習知技術】 印刷電路板一般來說，是把將絕緣性樹脂浸漬到紙或 玻璃纖維的薄片、與導體的銅箔積疊起來，將其加熱加壓 使其黏接在一起的複合材料。當要在該印刷電路板進行鑽 孔加工時，一般來說爲了考慮減低製造成本會將複數片的 印刷電路板積疊在一起再進行鑽孔加工。雖然印刷電路板 用的鑽頭是使用硬質的超硬合金製造，可是以如上述的過 於嚴苛的方法使用於上述的複合材料的印刷電路板，鑽頭 的持續使用會讓鑽頭磨損，免不了會讓加工孔的品質惡化 或讓鑽頭折損。因此，則開發出用來加工前端刀刃的裝置 ，來將磨損的鑽頭再予以硏磨讓鑽頭的壽命能延長。 在以往的鑽頭的前端刀刃加工裝置中，作爲鑽頭的保 持機構，是具備有可旋轉的夾頭等的鑽頭保持部，爲了防 止在前端加工時所產生的震動，在鑽頭前端附近是設置有 支承構件，這是一般的構造。在將鑽頭的前端進行加工時 ，將其中一個前端刀刃進行加工之後，會使鑽頭旋轉所需 要的角度（兩片刀刃時是1 8 0 )，再來加工另一個刀刃。 這是一般的方法，因此鑽頭保持部要能夠旋轉。 本紙張尺度適用中國國家標準（CNS ) A4規格（210X297公釐）' Γ5Ι -— 裝 訂 線 (請先閲讀背面之注意事項再填寫本頁) 1221103 經濟部智慧財產局員工消費合作社印製 A7 B7 五、發明説明（4 ) 設置有該兩軸的相對位置調整部5，在上述相對位置調整 部5設置有兩對調整螺栓6 b、6 c ，其中一方的一對調 整螺栓6 b是可轉動地支承著上述相對位置調整部5的組 成構件5 b，另一方的一對調整螺栓6 c可轉動地支承著 連結設置著上述旋轉從動軸3的上述相對位置調整部5的 組成構件5 c之鑽頭保持機構7、用來支承上述鑽頭1的 刀具部的刀座8、及用來硏磨上述鑽頭的前端面的硏磨手 段之鑽頭前端刀刃加工裝置，其特徵爲：是具備有：在上 述旋轉從動軸3的延長方向上，相較於上述相對位置調整 部5的上述兩對的調整螺栓6 b、6 c更接近上述旋轉驅 動軸4側的錘部9。 在弟1發明的鑽頭保持單兀，其中，是把上述鍾部9 的重量設定成：針對於可轉動地支承著連結設置上述旋轉 從動軸3的上述相對位置調整部5的組成構件5 c的上述 一對調整螺栓6 c的中心軸周圍，讓上述旋轉從動軸3的 本身的重量所造成的力矩與上述錘部9的重量所造成的力 矩達成平衡。 在第1或2發明中的鑽頭保持單元中，上述錘部9是 可朝向上述旋轉從動軸3的軸方向移動調整。 在第1、2或3發明的鑽頭保持單元中，是具備有鑽 頭緊壓構件1 〇。 【發明實施型態】 以下針對圖面來針對本發明的實施型態來加以說明。 本紙張尺度適用中國國家標準（CNS ) A4規格（BOX297公釐） 裝 訂 線 (請先閲讀背面之注意事項再填寫本頁) 1221103 A7 B7 五、發明説明（5 ) (請先閲讀背面之注意事項再填寫本頁) 首先，針對鑽頭前端刀刃加工裝置的鑽頭保持單元的 構造來加以說明，如第2圖所示，主要是包含有：旋轉驅 動源（可以使用任何驅動源，在本實施例中，僅將步進馬達 作爲使用例。）S、旋轉驅動軸4 (這裡所說的旋轉驅動軸， 雖然是直接用步進馬達的馬達軸，而也可以由馬達等的實 際的驅動源經由齒輪等構造來組成，例如相對位置調整部 5的安裝了組成構件5 a的軸部。）、相對位置調整部5、 旋轉從動軸3、鑽頭保持部2、以及鑽頭1 ，且設置有： 在上述步進馬達S的下方設置了讓上述鑽頭1可左右來回 移動的測微頭，且與步進馬達主體一體地連接，且可於基 座B上滑動地安裝有上述相對位置調整部5及上述旋轉從 動軸3的滑動台T。 經濟部智慧財產局員工消費合作社印製 本發明的鑽頭前端刀刃加工裝置的鑽頭保持單元，是 具備有：是在旋轉從動軸3的其中一端具備有用來安裝鑽 頭1的鑽頭保持部2 (雖然本申請所使用的是套爪卡盤，而, 也可以使用側鎖定式卡盤。），在旋轉驅動軸4與上述旋轉 從動軸3之間是設置有該兩軸的相對位置調整部5，在該 相對位置調整部5設置有兩對調整螺栓6 b、6 c，其中 一方的一對調整螺栓6 b，是可轉動地支承上述相對位置 調整部5的組成構件5 b，另一方的一對調整螺栓6 c ， 是可轉動地支承著連結設置上述旋轉從動軸3的上述相對 位置調整部5的組成構件5 c之鑽頭保持機構7、用來支 承上述鑽頭1的刀具部的刀座8、用來硏磨上述鑽頭的前 端面的硏磨手段、以及藉由將處於沒有偏斜及彎曲的狀態 本紙張尺度適用中國國家標準（CNS ) A4規格（210X297公釐） 經濟部智慧財產局8工消費合作社印製 1221103 A7 B7 五、發明説明（6) 的鑽頭1按壓向上述刀座8來抑制前端加工時的震動的橫 向支承方式、或上下方向的按壓支承方式之鑽頭緊壓構件 1 0。並且具備有：在上述旋轉從動軸3的延長部上，相 較於上述相對位置調整部5的上述兩對調整螺栓6 b、 6 c更接近上述旋轉驅動軸4側的錘部9，可以調整該部 而盡量減小上述鑽頭1的前端的偏斜，且考慮上述力矩的 平衡，將上述錘部9的重量設定成：在可轉動地支承著連 結設置旋轉從動軸3的相對位置調整部5的組成構件5 c 的上述一對調整螺栓6 c的中心軸周圍，讓上述旋轉從動 軸3的本身的重量所造成的力矩與上述錘部9的重量所造 成的力矩達成平衡。 【發明的作用及效果】 如上述，本發明，是在旋轉從動軸3的其中一端具備 有用來安裝鑽頭1的鑽頭保持部2，在旋轉驅動軸4與上 述旋轉從動軸3之間是設置有該兩軸的相對位置調整部5 ，且具備有：在上述旋轉從動軸3的延長部上，相較於上 述相對位置調整部5的上述兩對調整螺栓6 b、6 c更接 近上述旋轉驅動軸4側的錘部9，由於是作成以刀座8來 支承上述鑽頭1的刀具部，藉由上述相對位置調整部5可 以調整盡量減少上述鑽頭1的前端的偏斜，藉由考慮上述 力矩的平衡來設定上述錘部9的重量，則可以在沒有彎曲 的狀態保持住鑽頭1。 雖然很難嚴密地設定上述錘部9的·重量讓上述的力矩 本紙張尺度適用中國國家標準（CNS ) A4規格（21〇><297公釐） 一 10 - 裝 訂 線 (請先閲讀背面之注意事項再填寫本頁) 1221103 A7 B7 五、發明説明（8 ) 8 :刀座 9 :錘部 1 0 :鑽頭緊壓構件 (請先閲讀背面之注意事項再填寫本頁) 裝* 訂 線 經濟部智慧財產局Μ工消費合作社印製 本紙張尺度適用中國國家標準（CNS ) A4規格（210X297公釐）1221103 Printed by A7 B7, Consumer Cooperative of Intellectual Property Bureau of the Ministry of Economic Affairs 5. Description of the invention (') [Technical field to which the invention belongs] The present invention relates to a cutting edge cutting device for a drill bit, and more particularly to a device suitable for use on a printed circuit board (hereinafter (Referred to as a printed circuit board) A drill holding unit of a front-end cutting edge processing device for a front-end cutting edge of a printed circuit board that uses a small-diameter drill such as a drill for drilling. [Know-how] Generally, printed circuit boards are composite materials in which a sheet of insulating resin is impregnated with paper or glass fiber, and a copper foil of a conductor is stacked, and then heated and pressurized to bond them together. . When drilling is to be performed on this printed circuit board, generally, a plurality of printed circuit boards are stacked together for drilling to reduce manufacturing costs. Although the drill bit for printed circuit board is made of hard cemented carbide, it can be used in the above-mentioned harsh printed circuit board of the composite material. The continuous use of the drill bit will cause the drill bit to wear out, and it will inevitably cause processing. The quality of the hole deteriorates or the drill is broken. Therefore, a device for machining the front-end cutting edge was developed to honing the worn drill bit to extend the life of the bit. In a conventional cutting edge cutting device for a drill, as a drill holding mechanism, a drill holding portion having a rotatable chuck or the like is provided, and a support is provided near the tip of the drill in order to prevent vibration generated during tip processing. Component, which is a general construct. When the front end of the drill is processed, after processing one of the front cutting edges, the drill is rotated by the required angle (1 8 0 for two cutting edges), and then the other cutting edge is processed. This is the normal method, so the drill holder must be able to rotate. This paper size applies the Chinese National Standard (CNS) A4 specification (210X297mm) 'Γ5Ι -— Gutter (please read the precautions on the back before filling this page) 1221103 Printed by the Consumer Cooperative of Intellectual Property Bureau of the Ministry of Economic Affairs A7 B7 5 4. Description of the invention (4) A relative position adjustment section 5 of the two shafts is provided, and two pairs of adjustment bolts 6 b and 6 c are provided in the relative position adjustment section 5, and one of the pair of adjustment bolts 6 b is rotatable. The component 5b supporting the relative position adjustment unit 5 is supported, and the other pair of adjustment bolts 6c rotatably supports the component 5c of the relative position adjustment unit 5 which is provided with the rotation driven shaft 3. The drill holding mechanism 7, a tool holder 8 for supporting the cutter part of the drill 1, and a drill tip cutting device for a honing means for honing the front end surface of the drill, are characterized in that: The extension direction of the rotary driven shaft 3 is closer to the hammer portion 9 on the rotary drive shaft 4 side than the two pairs of adjustment bolts 6 b and 6 c of the relative position adjustment unit 5. In the drill bit invention of the brother 1, the weight of the bell portion 9 is set so as to rotatably support the constituent members 5 c of the relative position adjustment portion 5 which is connected to the rotary driven shaft 3. Around the central axis of the pair of adjusting bolts 6 c, the torque caused by the weight of the rotating driven shaft 3 and the torque caused by the weight of the hammer portion 9 are balanced. In the drill holding unit according to the first or second invention, the hammer portion 9 can be moved and adjusted in the axial direction of the rotary driven shaft 3. The drill holding unit according to the first, second or third invention is provided with a drill pressing member 10. [Inventive Implementation Mode] The following describes the implementation mode of the present invention with reference to the drawings. This paper size applies to Chinese National Standard (CNS) A4 (BOX297mm) gutter (please read the precautions on the back before filling this page) 1221103 A7 B7 V. Description of the invention (5) (Please read the precautions on the back first Fill out this page again) First, the structure of the bit holding unit of the cutting edge cutting device of the bit will be described. As shown in Figure 2, it mainly includes: a rotary drive source (any drive source can be used. In this embodiment, Only the stepper motor is used as an example.) S. Rotary drive shaft 4 (The rotary drive shaft here is a motor shaft of a stepper motor, but it can also be driven by an actual drive source such as a motor through a gear And other structures, such as the shaft portion of the relative position adjustment portion 5 on which the component member 5 a is installed.), The relative position adjustment portion 5, the rotary driven shaft 3, the drill holding portion 2, and the drill 1, and are provided with: A micrometer that allows the drill 1 to move back and forth from side to side is provided below the stepping motor S, and is integrally connected to the main body of the stepping motor, and is slidably mounted on the base B. Adjusting the relative position of the rotary portion 5, and the slide table T. movable shaft 3 The drill holding unit of the drill tip cutting device of the present invention printed by the employee's cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs is provided with a drill holding unit 2 for installing the drill 1 on one end of the rotary driven shaft 3 (although A collet chuck is used in the present application, but a side-locking chuck may also be used.) A relative position adjustment section 5 for the two shafts is provided between the rotary drive shaft 4 and the rotary driven shaft 3. Two pairs of adjusting bolts 6 b and 6 c are provided in the relative position adjusting portion 5. One of the pair of adjusting bolts 6 b is a component member 5 b that rotatably supports the relative position adjusting portion 5. A pair of adjusting bolts 6 c are rotatably supported by a drill holding mechanism 7 that is a component 5 c of the relative position adjustment unit 5 that is provided with the rotary driven shaft 3 and supports the cutter portion of the drill 1. Seat 8. Honing means for honing the front end surface of the drill bit, and as it will be in a state without deflection and bending. This paper size applies the Chinese National Standard (CNS) A4 specification (210X297 mm). Printed by the Ministry of Economic Affairs and the Intellectual Property Bureau of Japan ’s 8th Industrial Cooperative Cooperative 1221103 A7 B7 V. Description of the invention (6) The drill bit 1 is pressed toward the tool holder 8 to suppress the vibration during front-end processing, or it is one of the horizontal and vertical support methods. The drill bit presses the member 10. In addition, the extended portion of the rotary driven shaft 3 is closer to the hammer portion 9 on the rotary drive shaft 4 side than the two pairs of adjustment bolts 6 b and 6 c of the relative position adjustment unit 5. Adjust this part to minimize the deflection of the front end of the drill 1 and consider the balance of the moment, and set the weight of the hammer part 9 so that the relative position of the rotary driven shaft 3 is rotatably supported and connected. Around the central axis of the pair of adjustment bolts 6 c of the component 5 c of the portion 5, the torque caused by the weight of the rotating driven shaft 3 and the torque caused by the weight of the hammer portion 9 are balanced. [Operation and Effect of the Invention] As described above, the present invention is provided with a drill holding portion 2 for mounting a drill 1 on one end of the rotary driven shaft 3, and between the rotary drive shaft 4 and the rotary driven shaft 3 is The two-axis relative position adjustment section 5 is provided, and the extension of the rotary driven shaft 3 is closer to the two pairs of adjustment bolts 6 b and 6 c of the relative position adjustment section 5. Since the hammer part 9 on the side of the rotary drive shaft 4 is a cutter part that supports the drill 1 with a tool holder 8, the relative position adjustment part 5 can be adjusted to minimize the deflection of the tip of the drill 1 by When the weight of the hammer portion 9 is set in consideration of the balance of the moment, the drill 1 can be held without being bent. Although it is difficult to set the weight and weight of the above-mentioned hammer part 9 strictly so that the above-mentioned moments, the paper size applies the Chinese National Standard (CNS) A4 specification (21〇 > < 297mm)-10-gutter (please read the back first) Please pay attention to this page before filling in this page) 1221103 A7 B7 V. Description of the invention (8) 8: Tool holder 9: Hammer part 1 0: Drill pressing member (please read the precautions on the back before filling this page) The paper size printed by the Intellectual Property Bureau of the Ministry of Economic Affairs and the Industrial Cooperative Cooperative is in accordance with the Chinese National Standard (CNS) A4 (210X297 mm)