五、新型說明： 【新型所屬之技術領域】 本創作係提供—種鑽針結構改良，《鑽針之鑽槽部位 於二切削刀刃中心處形成有凹部，並於凹部與切削刀刃連接 處之切刃面之間稍有狀紗，即可_凹雜止其鑽心 抵觸於電雜上所造麵觀_圍產生不—致的銅羯層外 翻毛邊之情況，以確保鑽削的孔洞品質更為良好。 【先前技術】 按現7電子產品為朝向輕薄短小的設計趨勢下，使得 各種電子產品對㈣積絲變得更小，·電子產品内部各 種電子元件的製造加工將變得越來越精細，並使電子產品中 可供電子元倾設定位之_電路減前必麵之縮小， 所以在印刷電路板的製程中’大多會彻鑽職微型鑽針來 進行孔雕工’而可提供電子元件喊數接腳穿插後再予以 焊固形成電性連接。 再者’印刷電路板、1c載板等為了降低生產的成本， 均會知用多層疊板同時加工，以配合電子元件構裝的小型化 及陣列化，促使印刷電路板也不斷的提高密度以因應需求， 於疋便有業者研發出高密度連接板（HDI板），具有體積 J速度快、頻率高的優勢’而廣泛的被使用在個人電腦、 可攜式電腦、手機及個人數位助理（PDA)上，並且使用 上的需求有越來越薄的趨勢，因此也相對提高了現行鑽針於 M425731 鑽孔加工上之困難，其最大關題是鑽孔加工後的孔洞周圍V. New description: [New technical field] The creation department provides a kind of improvement of the drilling needle structure. The drill groove part is located at the center of the two cutting edges and has a concave portion, and the joint between the concave portion and the cutting edge is cut. There is a slight wavy between the blade faces, which can be used to ensure that the hole quality of the drilled hole is better. For the good. [Prior Art] According to the design trend of the current 7 electronic products, the electronic products are made smaller (4), and the manufacturing and processing of various electronic components inside the electronic products will become more and more fine. In the electronic product, the circuit that can be used to set the position of the electronic element is reduced. Therefore, in the manufacturing process of the printed circuit board, most of the drills will be used to drill the hole and provide electronic components. After the pins are inserted, they are soldered to form an electrical connection. In addition, in order to reduce the cost of production, it is known that multi-layered boards are simultaneously processed to match the miniaturization and array of electronic components, and the printed circuit boards are continuously increased in density. In response to demand, the company has developed high-density connecting plates (HDI boards) with the advantages of high speed and high frequency, and is widely used in personal computers, portable computers, mobile phones and personal digital assistants. PDA), and the demand for use is getting thinner and thinner, so it also relatively improves the difficulty of drilling the current drilling needle in M425731. The biggest problem is around the hole after drilling.
由於-般的鑽針為了減小軸向鑽孔的轴向力，所以鑽針 的鑽心設計上通常很薄，並由圓心向外逐漸增厚，且二刀刃 的邊緣處厚實，其旋轉切削的能力就痕強，即可適用於綱 作業，不過因高密度連接板的厚度越來越薄，若鑽針之鑽尖 直接抵觸於絲錢接板上舫祕工料，此絲度連接 板便容易受力產生變形，並造成刀刃切削後之孔洞周圍產生鲁 不-致的銅箱層外翻毛邊之情況發生，且切削的廢屬沿著排 屑槽向外排出時亦會阻塞於鑽針與孔壁之間相互刮擦，使得 孔壁表面較為祕，並在麟高速㈣時便會加速刀刀之磨 耗與損傷，亦會因磨擦阻力過大所導致溫度快速上升、冷卻 效果不佳，加上高溫切屑熱融所產生之膠渣，而使鑽針容易 產生崩裂或折_縣，即為從雜此行業者所亟待研 究改善之方向所在。 【新型内容】 $ 集相關資料經由多方評估及考量， 年研發經驗不斷試作與修改，始認 新型誕生。 故，創作人有鑑於習用鑽針使用上之問題與缺失，乃搜 1，並利用從事於此行業之多 始設計出此種鑽針結構改良的 本創作之主要目的乃在於綱位於麵部遠離鑽身部的 另端處為具有至少二伽削刀刀，且二切削刀种心處形成 4 M425731 造成阻塞’以此可減少鑽針1在鑽削作業時所發生崩裂或折 斷的現象’並確保鑽削的孔洞21品質更為良好，進而延長 鑽針1整體的使用壽命。 復請參閱第一、三、七圖所示，本創作為針對鑽針1位 於鑽槽部12所具之二切削刀刃13中心處形成有一凹部1 31，並於凹部131接著與切削刀刃13連接處分別形成 有呈一傾斜或派狀之切刃面13 2 ,且二切刀面13 2之間 形成有介於18 0。〜90。之間的預定夾角為其主要特徵 ’當鑽針1於鑽削作業時，可透過二切削刀刀13中心處之 凹部131來防止其鑽心i 3 〇抵觸於電路板2表面上，以 有效改善電路板2受力變形所造成鑽削孔洞21周圍產生不 —致的鋪層外翻毛邊之情況發生，使切屑2 2亦不會堆積 於鑽針1與孔洞21壁面處之間相互刮擦，並確保鑽削的孔 洞21品質更為良好，且可減少鑽針丄在鑽削時斷裂之現象 ’得以延長鑽針1整體的使用壽命。 上述拜細說明為針對本創作—種較佳之可行實施例說明 宜已，惟該實施例並_以限物^作之”專利範圍，凡 所揭示之技藝精神下所完成之均等變化與 / 應包含於摘作所涵蓋之翻範圍中。 及目叙撕結構改良為確魏翻其功效 ，的故本創作誠為一實用性優異之創作，實符合新型專 利之申凊要件，爰依法握出 抽出申,月’盼審委早日賜准本案， 7 M425731 以保障創作人之辛苦創作，倘若鈞局有任何稽疑，請不吝 來函指示，創作人定當竭力配合，實感德便。 M425731 【圖式簡單說明】 第一圖係為本創作之立體外觀圖。 第二圖係為本創作之側視圖。 第三圖係為本創作第二圖之局部放大圖。 第四圖係為本創作切削刀刃方向之前視圖。 第五圖係為本創作鑽削前之側視示意圖。 第六圖係為本創作鑽削時之側視示意圖（一）。 第七圖係為本創作鑽削時之側視示意圖（二）。 第八圖係為本創作鑽削後之側視示意圖。 【主要元件符號說明】 1、 鑽針 1 1、鑽身部 1 3 1、凹部 1 2、鑽槽部 13 2、切刃面 1 3、切削刀刃 13 3、間隙 13 0、鑽心 14、排屑槽 2、 電路板 2 2、切屑 9In order to reduce the axial force of the axial drilling, the drill core is usually designed to be thin and gradually thickened outward from the center of the circle, and the edges of the two cutting edges are thick, and the rotary cutting is performed. The ability is strong, it can be applied to the work, but because the thickness of the high-density connecting plate is getting thinner and thinner, if the drill tip directly touches the secret material on the silk money board, the wire connecting plate is easy. The force is deformed, and the occurrence of a ruined copper box edge around the hole after the cutting of the blade occurs, and the cutting waste is also blocked along the chip flute when it is discharged to the burr. The walls of the holes are scraped from each other, so that the surface of the holes is relatively secret, and the wear and damage of the knife will be accelerated at the high speed (4) of the Lin. The temperature will rise rapidly due to excessive frictional resistance and the cooling effect will be poor. The slag produced by the hot melt of the high-temperature chips makes the burs prone to cracking or folding, which is the direction that needs to be studied and improved from the industry. [New Content] $ The collection of relevant materials has been evaluated and considered by many parties. The annual research and development experience has been continuously tried and revised, and the new type has been born. Therefore, the creator has the problem and the lack of the use of the burs, and the main purpose of this creation is to design the boring structure to improve the design. The other end of the drill body has at least two gauge cutters, and the formation of 4 M425731 at the center of the two cutters causes a blockage 'to reduce the phenomenon of cracking or breaking of the drill needle 1 during drilling operations' It is ensured that the quality of the drilled hole 21 is better, thereby extending the overall life of the drill needle 1. Referring to the first, third and seventh figures, the present invention is to form a recess 1 31 at the center of the two cutting edges 13 of the drill hole 12, and then connect the cutting edge 13 to the recess 131. A cutting edge surface 13 2 having an inclined or pie shape is formed at each of the positions, and a gap of 18 is formed between the two cutting surfaces 13 2 . ~90. The predetermined angle between them is the main feature 'When the drill 1 is in the drilling operation, the recess 131 at the center of the two cutter blades 13 can be prevented from colliding with the core i 3 〇 against the surface of the circuit board 2 to effectively improve The deformation of the circuit board 2 caused by the deformation of the hole 21 causes a non-induced ply burr, so that the chip 2 2 does not accumulate between the drill pin 1 and the wall surface of the hole 21, It also ensures that the quality of the drilled hole 21 is better, and the phenomenon that the drill pin is broken during drilling is reduced, and the life of the drill pin 1 as a whole is prolonged. The above description is intended to be illustrative of the preferred embodiments of the present invention, but the embodiments are intended to be equivalent to the scope of the patents disclosed herein. It is included in the scope of the cover covered by the excerpt. And the improvement of the tear structure is confirmed to be the effect of Wei, and the creation is a practical and excellent creation, which is in line with the application requirements of the new patent. Drawing out the application, the month's expectation will be given to the case as soon as possible, 7 M425731 to protect the creator's hard work. If there is any doubt in the bureau, please do not hesitate to give instructions, the creator will try his best to cooperate and feel the virtue. M425731 [Picture The first picture is the three-dimensional appearance of the creation. The second picture is the side view of the creation. The third picture is a partial enlarged view of the second picture of the creation. The fourth picture is the cutting edge of the creation. The front view of the direction. The fifth picture is a side view of the original drilling before the drilling. The sixth picture is a side view of the original drilling (1). The seventh picture is the side view of the original drilling. Schematic The eighth figure is a side view of the original drilling. [Main component symbol description] 1. Drill needle 1 1 , drill body 1 3 1 , recess 1 2, drill groove 13 2 1 3, cutting edge 13 3, gap 13 0, core 14, chip flute 2, circuit board 2, chip 9