M269983 八、新型說明： 【新型所屬之技術領域】 本創作係一種運用於木工或金屬加工等方面的倒角刀 尤指一種單刃螺旋型排屑槽溝的新型倒角刀構造。 【先前技術】 按，在木工或金屬加工的技術領域中，一般於穿孔或 螺孔加工成型後，經常會於孔端緣加工形成錐坑型態的雖 斜面，不僅可去除鑽孔或攻牙所產生的毛邊，並且可以導 引螺栓快速地對正導人孔徑進行内孔端緣的修屑加工。 -般的倒角刀構造係如第三、四圖所示，該倒角刀（ 9 cn係設有-用以供鑽具等工具機夾持固定的柄桿㈠ 1 _) ’以及一連結於柄桿（9 1 )的刀頭（9 2)，於該 刀頭（9 2 ) $成-尖錐狀的切削端（9 2工）及 上的排屑槽溝（9 2 2 )，並於各排㈣溝（92 =邊：成各一刀刀（”3)，组構成如第 圖 =現有倒角刀構造，其中於第三圖圖 屬槽溝（9 2 2 )及單一刀刀（9 早排 9〇Α) ’於第四圖所示係為設具三 )及刀刀（”3)的三刀型倒角刀（90Β) 22 錐孔二已經能夠提供於孔端形成 斜直線型广二=排屑槽溝（9 2 2 )係設成 缺點及限制： 至夕尚存在如後所述的 1、如第三、四圖所示，倒角刀（9〇)呈斜直線型 M269983 。的排屑槽溝（9 2 2 ) ’造成倒角刀（9 Ο )的刀刀（ 9 2 3 )與鄰接排屑槽溝（9 2 2 )的腹壁（9 2 4 )之 間的角度相當大’導致倒角力（9 ◦)所設各刀刀（9 2 3 )會受到極大的切削阻力，不僅影響切削加工的效率， 並且容易於切削加工時產生毛邊。 2、倒角刀（9 〇 )的斜直線型排屑槽溝（9 2 2 ) 幾乎與旋轉切削方向垂直，不僅排屑效果不好，影響切削 加，的精密度及品質’並且容易產生切職飛的危險狀況 ’才呆作安全性較差。 再者，雖然曾有業者開發出如第79209215號專利案 所揭不之三刃螺旋型倒角刀（9 〇 c )，然由於此等三刃 聖例角刀（9 ◦ C )同時以三個切削刀刃（9 2 3 )對工 亍力工且母刀夂力不同，由於三個切削刀刃（9 2 $ )難以在同一瞬間同時接觸到工件，目此容易造成刀具或 々件的震動，造成加工面不&，導致無法有效控制加工品 」表面粗糙度，並且二刀倒角”（9 〇c)同時會產生 三道切削屑，"影響排屬效果及阻礙切削加工的順暢性 ’實有再進一步加以研究改進的必要。 【新型内容】 為解決現有倒备77古* S月^ 力1』用刀有關於前述切削阻力大、容易產生 毛邊及排屑效果差….等缺弊及限制，本創作主要目的 在於提供-種具螺旋型排屑槽溝的單刃倒角刀，其主要係 配：倒角刀工作旋向，將倒角刀的排屑槽溝設計成的螺旋 型態’並配合讓鄰接切削刀刀的腹壁設為凹弧型態，巧妙 M269983 地利用螺旋狀的排屑槽溝，有效達到降低切削阻力及提供 良好排屑效能等目的，大幅提昇㈣刀的實用效能。〃 基於前述目的，本創作所運用的技術手段係在於提供 一種單間旋排屑槽溝的倒角刀，其係包括-柄桿及一連 結於該柄桿的刀頭’於該刀頭設有—呈尖錐狀的切削端， 由該切削端設有-道螺旋型排屑槽溝及—位於㈣槽溝側 邊的刀77 ’並於該排屑槽溝與該刀刃間形成—凹弧狀的腹 壁0 本創作所提供單刃螺旋排屬槽溝的倒角刀，可以獲得 的優點及功效增進至少包括： 1、 本創作於倒角刀形成單刀的螺旋型排屑槽溝，相 較於傳統的多77螺旋型倒角刀構造，本創作不僅加工簡便 :製造成本較低，刀具再研磨容易，重覆修磨的次數可以 增加一倍以上，適用範圍廣。 2、 本創作利用配合工作旋向的單刃螺旋型排屑槽溝 不僅可以提供極為順暢良好的切削性及排屑效果，大幅 提昇倒角刀切削加工的精密度及品質，並且不會產生切屬 散飛的危險情形，有效確保倒角刀在操作使用時的安全性 f、本創作將倒角刀的排屑槽溝設為配合工作旋向的 螺旋態樣，配合呈凹弧型態的刀刀腹壁，不僅能夠大幅降 低倒角刀的切削阻力，有效提昇工件加工後的品質及切削 加工的效率，並且能夠於切削刀刀形成尖銳狀的刃口，避 免於切削加工時產生毛邊。 M269983 【實施方式】 為能詳細瞭解本創作的技術特徵及實用功效，並可依 照說明書的内容來實施，玆進一步以如圖式所示的較佳實 施例，詳細說明如后： 本創作係為一種於刀頭設有一道螺旋型排屑槽溝的新 型倒角刀構造，如第一、二圖所示係為本創作的較佳實施 型態，該倒角刀（1 〇)同樣設有一用以供鑽具等工具機 夾持固定的柄桿（1 1)及一連結於該柄桿（1 1)的刀 頭（1 2 )，本創作的技術特徵係在於該刀頭（i 2 )的 構造設計； 前述的刀頭（1 2 )係設有一呈尖錐狀的切削端（工 2 1 )、一道配合倒角刀（i 〇 )工作旋向的螺旋狀排屑 槽溝（1 2 2 )及-位於該排屑槽溝（丄2 2 )側邊的刀 刀（1 2 3 ) ，·其中，該倒角刀（工〇 )所設切削端（工 2 1 )的尖錐角度即為該倒角刀（丄〇 )的切削角度，並 且該螺旋型排屬槽溝（122) _鄰接該刀刀（12 3 )的腹壁（1 2 4 )形成配合螺旋旋向的凹弧離 以於該切削刀刀（1 ? q, ‘、精 丄2 3)形成尖銳狀的刃口； 如此，組構成如& Ί ? 9 _„珉如第一、二圖所示具螺旋型排屑槽溝（ 1 2 2 )的早刀倒角刀（工〇 )。 螺旋型排屑槽：：：=，本創作利用配合工作旋向的 屑效果，配合呈凹)，可以提供極為順暢良好的排 金a 弧型態的刀刃腹壁（1 2 4 )却·舛，么匕 夠降低倒角刀(丄n、 狀！ I丄」4 ) ^十，月b 的切削阻力及提供良好的排屑效果 M269983 。本創作運用螺旋型排屑槽溝（1 2 2 )及呈尖銳狀的刀 刃（123) ’不僅可以有效提昇倒角刀（1〇) (1〇 A )的切削加工效率，並且能夠避免產生毛邊，確保倒角 刀（1 0 )切削加工的精密度及加工品質，大幅提昇倒角 刀（10)的實用效益。 以上所述’僅是本創作的較佳實施例，並非對本創作 作任何形式上的限制，任何所屬技術領域中具有通常知識 者’若在不脫離本創作所提技術特徵的範圍内，利用本創 作所揭示技術内容所作出局部更動或修飾的等效實施例， 並且未脫離本創作的技術特徵内容，均仍屬於本創作技術 特徵的範圍内。 【圖式簡單說明】M269983 8. Description of the new type: [Technical field to which the new type belongs] This creation is a chamfering knife used in woodworking or metal processing, especially a new type of chamfering knife structure with a single-edged spiral chip removal groove. [Previous technology] According to the technical field of woodworking or metal processing, generally after punching or screw hole processing and molding, the edge of the hole is often processed to form a tapered pit shape, although the inclined surface can not only remove drilling or tapping. The generated burr and the guide bolt can quickly perform chip trimming on the inner hole end edge of the positive guide hole. -The general chamfering knife structure is shown in the third and fourth figures. The chamfering knife (9 cn is provided with a shank ㈠ 1 _) for holding and fixing of a machine tool such as a drill and a link. To the cutter head (9 2) of the shank (9 1), to the cutter head (9 2) to form a sharp-tapered cutting end (92 workers) and the chip discharge groove (9 2 2), And in each row of trenches (92 = side: one knife ("3) each, the composition is as shown in the figure = the existing chamfering knife structure, where the third figure belongs to the groove (9 2 2) and a single knife (9 early row 9〇Α) 'The three-cutter chamfering knife (90B) with three) and a knife ("3" shown in the fourth picture) 22 The tapered hole two can already be provided at the end of the hole to form an oblique Straight-line Guang Er = Chip removal groove (9 2 2) is set to be shortcomings and limitations: To the evening there are still as described below 1. As shown in the third and fourth figures, the chamfering knife (9) is inclined Straight M269983. The chip removing groove (9 2 2) 'has an angle between the knife (9 2 3) that causes the chamfering knife (9 Ο) and the abdominal wall (9 2 4) adjacent to the chip removing groove (9 2 2). A large 'causes the chamfering force (9 ◦) of each cutter (9 2 3) to receive great cutting resistance, which not only affects the efficiency of the cutting process, but also easily causes burrs during cutting. 2. The oblique straight chip discharge groove (9 2 2) of the chamfering knife (9 〇) is almost perpendicular to the rotating cutting direction. Not only the chip removal effect is not good, but the precision and quality of the cutting process are affected. The dangerous situation of the professional flight 'is just staying inferior in safety. Furthermore, although some industry developers have developed a three-edged helical chamfering knife (90 °) as disclosed in the Patent No. 79209215, these three-edged holy example angled knives (9 ◦ C) The two cutting edges (9 2 3) are opposite to each other and the mother blades have different forces. Since the three cutting edges (9 2 $) are difficult to contact the workpiece at the same instant, it is easy to cause the vibration of the tool or the workpiece. As a result, the machining surface is not & it is impossible to effectively control the surface roughness of the machined product, and two-blade chamfering (90 °) will simultaneously generate three cutting chips, which will affect the ranking effect and hinder the smoothness of the cutting process. 'There is a need for further research and improvement. [New content] To solve the existing problems of 77 days * S month ^ Force 1 "The knife has a large cutting resistance, easy to produce burrs, and poor chip removal ... etc. Disadvantages and limitations, the main purpose of this creation is to provide a kind of single-edged chamfering knife with a spiral chip groove, which is mainly equipped with the work direction of the chamfer knife and the chip groove of the chamfer knife. Spiral pattern 'and cooperate to let the adjacent wall of the cutter blade For the concave arc type, M269983 cleverly uses the spiral chip discharge groove to effectively reduce the cutting resistance and provide good chip discharge performance, etc., and greatly improve the practical performance of the trowel. 〃 Based on the foregoing purpose, the use of this creation The technical means is to provide a chamfering cutter with a single-slot rotary chip removing groove, which comprises a shank and a cutter head connected to the shank, and the cutter head is provided with a tapered cutting end. The cutting end is provided with a helical chip flute groove and a knife 77 ′ located on the side of the flute groove and formed between the chip flute groove and the blade edge. A concave arc-shaped abdominal wall is provided. The spiral chamfering knife that belongs to the groove can obtain the advantages and enhancements of at least: 1. This creation is a single-edged spiral chip removing groove formed by the chamfering knife, compared with the traditional multi-77 spiral chamfering knife. Structure, this creation is not only easy to process: low manufacturing cost, easy re-grinding of the tool, the number of repeated grinding can be more than doubled, and the scope of application is wide. 2. This creation uses a single-edged spiral chip removal to match the work direction Slots can not only Provides extremely smooth and good cutting performance and chip removal effect, greatly improves the cutting precision and quality of the chamfering knife, and does not produce a dangerous situation that the cutting is scattered, effectively ensuring the safety of the chamfering knife during operation and use. In this creation, the chip groove of the chamfering knife is set to a spiral shape that matches the working direction of rotation, and the concave wall of the knife arc is not only able to greatly reduce the cutting resistance of the chamfering knife, but also effectively improve the workpiece after machining. The quality and efficiency of the cutting process, and the ability to form sharp edges on the cutting blade to avoid burrs during cutting. M269983 [Embodiment] In order to understand the technical characteristics and practical effects of this creation in detail, you can follow The content of the manual is implemented, and the preferred embodiment shown in the figure is further described in detail as follows: This creation is a new type of chamfering knife structure with a spiral chip flute groove on the cutter head, such as The first and second figures show the best implementation of this creation. The chamfering knife (10) is also provided with a shank (1 1) and The cutter head (1 2) connected to the shank (1 1), the technical feature of this creation is the structural design of the cutter head (i 2); the aforementioned cutter head (1 2) is provided with a pointed cone shape Cutting end (work 2 1), a spiral chip discharge groove (1 2 2) that cooperates with the working direction of the chamfering knife (i 〇), and-a knife located on the side of the chip discharge groove (丄 2 2) Knife (1 2 3), where the angle of the taper of the cutting end (tool 2 1) set by the chamfering knife (工 〇) is the cutting angle of the chamfering knife (丄 〇), and the spiral row Belongs to the groove (122) _ the abdominal wall (1 2 4) adjacent to the knife (12 3) forms a concave arc with a helical rotation so that the cutting knife (1? Q, ', fine 丄 2 3) is formed Sharp edge; In this way, the group is constituted as & Ί? 9 _ 珉 as shown in the first and second figures with an early chip chamfering knife (1 2 2) chamfering knife (work 0). Spiral chip flute ::: =, this creation uses the chip effect that matches the working direction of rotation, the fit is concave), can provide a very smooth and good gold discharge a arc shape of the blade's abdominal wall (1 2 4) but 舛, It is enough to reduce the chamfering knife (、 n, shape! I 丄 ″ 4) ^ ten, month b cutting resistance and provide good chip removal effect M269983. This creation uses a spiral chip groove (1 2 2) and a sharp-edged cutting edge (123) 'not only can effectively improve the cutting efficiency of the chamfering knife (10) (10A), but also can avoid burrs. To ensure the precision and quality of the chamfering knife (10), and greatly improve the practical benefits of the chamfering knife (10). The above description “is only a preferred embodiment of this creation, and does not limit the creation in any form. Any person with ordinary knowledge in the technical field to which it belongs” will use the present invention without departing from the technical characteristics of the creation. Equivalent embodiments of partial changes or modifications made to the technical content disclosed in the creation without departing from the technical features of the creation are still within the scope of the technical features of the creation. [Schematic description]
號螺旋型倒角刀之立體結構圖 (1 1 )柄桿 (1 2 1 )切削端 (1 2 3 )刀刀 【主要元件符號說明】 (1 0 )倒角刀 (1 2 )刀頭 1 1 2 2 )排屑槽溝 （ (1 2 4 )腹壁 M269983 ( 9 0 ) ( 9 0 A ) ( 9 0 B ) (90C)倒角刀 (9 1 )柄桿 （9 2 )刀頭 (9 2 1 )切削端 （9 2 2 )排屑槽溝 (923)刀刃 （924)腹壁Three-dimensional structure diagram of the spiral chamfering knife (1 1) shank (1 2 1) cutting end (1 2 3) knife [the description of the main component symbols] (1 0) chamfering knife (1 2) head 1 1 2 2) Chip removal groove ((1 2 4) abdominal wall M269983 (9 0) (9 0 A) (9 0 B) (90C) chamfering knife (9 1) shank (9 2) bit (9 2 1) Cutting end (9 2 2) Chip removal groove (923) Blade edge (924) Abdominal wall