M319808 八、新型說明： 【新型所屬之技術領域】 本創作係為一種中心鑽用之捨棄式刀片，更詳言之， 本創作應用在金屬工件鑽削中心孔，而且更能廣泛應用於 倒角、刻字、雕花…等加工之捨棄式刀片，尤其是刀片具 有一切削功能之切邊及一無切削功能而且具有支撐功能之 安全邊，使得刀具切削受力均勻，得以提高刀具轉速及進 刀速率。 【先前技術】 一般習用雙刃式的中心鑽頭3，請參閱第11圖所示， 係由鎢鋼一體切削製成，由於製造較為困難，相對製造成 本高，其主要功能係於綜合加工機上施以鑽中心孔、孔口 倒角、圓孔倒角、鑽孔、形狀倒角等功能；由於雙刃式的 中心鑽頭3具有雙刀刃，每一刀刃31都會受到切削阻力R， 兩個刀刃31受力平均，中心鑽頭3鑽削時相對較穩定，不 會有振動現象，且鑽孔之中心定位精確，然而雙刀刃卻要 承受2倍之切削阻力R，使中心鑽3承受過大之阻力，因此 轉速及進刀速率必須相對降低，猶如尺寸越大之鑽頭阻力 越大，轉速及進刀速率亦相對必須降低。 另一種較進步之捨棄式中心鑽4,如第12圖所示，於 刀桿40前端鎖固一捨棄式刀片41，該捨棄式刀片41之鑽 頂角角度Θ為55°，當捨棄式刀片41鎖固於刀桿40時必須 微偏一角度，使得右切邊411與中心軸線400呈30度角， 當捨棄式中心鑽4旋轉時切邊411鏡射之加工之角度(^才 5 M319808 是符合需求的60度角，如第13圖所示，切邊411之鏡射 線410與左切邊412具有一角度0，該角度0之角度值為5 。，且該角度0會有空隙，因此該左切邊412並沒有切削功 能’對中心鑽刀具而言，單一切邊僅有單一之切削阻力r， 雖然理論上單一切削阻力值較小，但是捨棄式刀片41單邊 承受切削阻力R將會產生微量變形，使得進刀中之捨棄式 刀片41受力無法平衡，進而使捨棄式刀片41產生振動現M319808 VIII. New Description: [New Technology Field] This creation is a kind of disposable blade for center drilling. In more detail, this creation is applied to the drilling of metal workpieces in the center hole, and it can be widely used in chamfering. , cutting, engraving, etc., such as the cutting blade, especially the blade has a cutting function of the cutting edge and a non-cutting function and has a safety function of the supporting function, so that the cutting force of the tool is uniform, and the tool rotation speed and the feed rate are improved. . [Prior Art] Generally, the double-edged center drill 3 is used. As shown in Fig. 11, it is made of tungsten steel. It is difficult to manufacture and has high manufacturing cost. Its main function is in the integrated processing machine. The function of drilling the center hole, the hole chamfering, the round hole chamfering, the drilling, the shape chamfering, etc.; since the double-edged center drill bit 3 has a double cutting edge, each cutting edge 31 is subjected to the cutting resistance R, two The blade 31 is evenly averaged. The center bit 3 is relatively stable when drilling, there is no vibration, and the center of the hole is accurately positioned. However, the double blade has to withstand twice the cutting resistance R, so that the center drill 3 is oversized. Resistance, so the speed and feed rate must be relatively reduced, as the larger the bit resistance, the higher the speed and the feed rate must be reduced. Another progressive discarding center drill 4, as shown in Fig. 12, locks a discarding blade 41 at the front end of the arbor 40, the angle of the apex angle of the discarding blade 41 is 55°, when the discarding blade When the cutter bar 40 is locked to the cutter bar 40, it must be slightly offset by an angle such that the right cut edge 411 is at an angle of 30 degrees with the central axis 400. When the discarding center drill 4 rotates, the angle of the cut edge 411 is mirrored (^5 M319808 Is a 60 degree angle that meets the demand. As shown in Fig. 13, the mirror ray 410 of the trimming edge 411 has an angle of 0 with the left cutting edge 412, and the angle value of the angle 0 is 5, and the angle 0 has a gap. Therefore, the left cutting edge 412 does not have a cutting function. For a center drilling tool, there is only a single cutting resistance r on the single side. Although the theoretical single cutting resistance value is small, the disposable blade 41 is subjected to the cutting resistance R on one side. A slight deformation will occur, so that the disposable blade 41 in the infeed is unbalanced, and the discarding blade 41 is vibrated.
i ’轉速及進刀速率必須降低方能減少振動，因此刀具轉 連及進刀速度都必須降低，這將會直接引響加工速度及加 工成本。 【新型内容】 習知由鎢鋼一體切削製成之兩刃式中心鑽雖具有穩定 之支撐，但是雙刀刃卻承受2倍之切削阻力，轉速及進刀 速率無法提升；捨棄式之中心鑽雖僅有單一切刃，但是捨 棄式刀片單邊承受切削阻力將會產生微量變形，使得進刀 中之拾棄式刀片受力無法平衡，進而使捨棄式刀片產生振 動現象，轉速及進刀速率必須降低方能減少振動等缺點。 本創作中心鑽用之捨棄式刀片，主要係由一多邊形之 ’該上料时me低h ’該低平面之周 =上平面之間設有邊斜面’該低平面其中之—邊斜面係 蚓接於一邊面，該邊斜面與上平面之間形成—具後斜角之 切邊，另一切邊為無切削功能但具有支撑功妒之^二真 本創作之捨棄式中心鑽刀片鎖固於I Μ Μ 庙 g 、再彳政偏距離之刀 从’僅單一之切邊具有切削之功能，誘切真 刀邊並具後斜角， 6 M319808 二故刀口銳利，排屑順暢，而無切削功能之安全邊具有支 1功能’使得刀具在_日枝力得財衡，並能提 速及進刀速率，有效增進加工速度。 【實施方式】 請參閱第1〜4圖所示’本創作中心鑽用之捨棄式刀片 係由-多邊形之本體所構成，並且由呈對應的上平面 下:面12、數個邊面13，141516以及捨棄式刀片忉 之兩端前方研磨-錐形狀的圓弧面17等所 捨棄式刀片1。之兩邊設有側邊面18，該側邊面二二 面之^，該捨棄式別1G之中心位置設—貫穿之階級孔 a〜、面13，14，15，16具有一適當之傾角$，該上平面^ 是切削工件產生鐵相切削平面，該下平面12是供支撐之 用，該上平面11設有凹陷之低平面11卜該低平® 1U之 周圍與上平面11之間設有邊斜面112，且該邊斜面112电 成多邊形狀，該低平面U1其中之一邊斜面112係鄰接於 邊面13、15,該邊斜面112與上平面u之間所圍成之夹角 暨為後斜角r (如第4圖所示），且該邊斜面112㈣面13、 15之間形成-切邊13卜151 (如第i圖所示）。 e 請參閱第5圖所示，係為本創作捨棄式刀片10搭配鎖 固之刀桿20，該刀桿20末端設有刀座21 ,該刀座a之螺 孔211中心位置與刀桿中心線細具有一微小之偏 離，因此由俯視圖觀察該螺孔211之中心位置，並非與刀 桿中心線2G0重疊’而是具有—微小之偏離距—，該距離 -大約是0. 05賴〜〇. lmm ;另，該捨棄式刀片1〇具有一中心 M319808 線ΙΟΟ (如第3圖所示），係通過捨棄式刀片10上平面11 及階級孔19之中心，因此，該捨棄式刀片10鎖固於刀座 21時，如第7圖所示，該刀片中心線100與刀桿中心線200 是平行的，這是由侧視圖觀察；另外由第6圖之俯視圖觀 察，該刀片中心線100與刀桿中心線200亦具有一微小之 偏離距離e，該偏離距離e仍然是介於0. 05mm〜0. 1丽之間， 該捨棄式刀片10之切邊131係位於偏離之方向，當刀桿20 旋轉切削時僅有切邊131先行切削工件，因此僅切邊131 具有切削之功能，另一切邊並無切削功能，該切邊稱之為 安全邊141。 請參閱第1、3圖所示，本創作由兩邊面13,14(15,16) 所圍成之夾角僅其一邊面13(15)具有切邊131、151，該切 邊13卜151具有邊斜面112，另一安全邊141 (161)之邊 斜面112距離較遠，因此僅切邊131具有銳利之切削功能， 另一安全邊141並無切削功能，使得切邊131、151具有銳 利之切削刃口及快速排屑之功能，而且無擠屑之現象，所 鑽削之中心孔表面光滑不會有毛邊發生，刀具之主軸轉速 及進刀速率得以提升，有效提升加工速度，降低加工之時 間及成本。 請參閱第6、8圖所示，本創作之另一特點暨為無切削 功能的安全邊141、161所產生支撐之功能，如圖所示，該 捨棄式刀片10係偏一微小距離e鎖固於中心鑽之刀桿20 上，因此在鑽削時僅單邊之切邊131產生切削功能，如第8 圖所示，當切邊131鏡射於中心線之另一邊時（暨安全邊 8 M319808The speed and feed rate must be reduced to reduce vibration, so the tool transfer and feed speed must be reduced, which will directly affect the processing speed and processing cost. [New content] It is known that the two-blade center drill made of tungsten steel has a stable support, but the double-blade has twice the cutting resistance, and the speed and feed rate cannot be improved. There is only a single blade, but the cutting edge of the disposable blade will suffer a small amount of deformation, so that the pick-up blade in the infeed can not be balanced, which causes the discarding blade to vibrate. The speed and feed rate must be Lowering can reduce the shortcomings such as vibration. The discarding blade used in the creative center is mainly composed of a polygon. 'When loading, the height is low h'. The circumference of the low plane=the upper plane is provided with a side slope. The low plane is the side-edge slope system. Connected to one side, the side bevel and the upper plane form a cut edge with a back bevel, and the other cut edge is a non-cutting function but has a supporting function. I Μ 庙 Temple g, and then the knives of the distance from the slashing knife from the 'single cut edge has the function of cutting, seducing the real knife edge and the back bevel, 6 M319808 two sharp edges, smooth chip removal, no cutting The safety side of the function has a function of '1', which makes the tool balance in the _ day, and can speed up and feed rate, effectively improving the processing speed. [Embodiment] Please refer to the drawings in Figures 1 to 4, 'The discarding blade for drilling in this creative center is composed of the body of the polygon, and is formed by the corresponding upper plane: face 12, several side faces 13, 141516 and the discarding blade 1 such as the rounded surface 17 of the tapered-cone shape in front of both ends of the disposable blade. There are side faces 18 on both sides, and the side faces are two or two sides. The center position of the discarding type 1G is set to - the class holes a~, the faces 13, 14, 15, 16 having a proper inclination angle $ The upper plane ^ is a cutting workpiece to produce an iron phase cutting plane, the lower plane 12 is for supporting, and the upper plane 11 is provided with a concave low plane 11 between the low level 1 1 and the upper plane 11 The edge inclined surface 112 is electrically polygonal, and one of the low surface U1 is adjacent to the side surface 13 and 15, and the angle between the edge inclined surface 112 and the upper plane u is cum. It is a rear bevel r (as shown in Fig. 4), and a -cut 13b 151 is formed between the bevels 112 (four) faces 13, 15 (as shown in Fig. i). e Refer to Figure 5 for the creation of the blade 10 with the locking knife bar 20, the end of the knife bar 20 is provided with a knife seat 21, the center position of the screw hole 211 of the holder a and the center of the tool holder The line is fine with a slight deviation, so that the center position of the screw hole 211 is not overlapped with the arbor center line 2G0, but has a slight deviation distance, and the distance is about 0. 05 赖~〇 Lmm; in addition, the disposable blade 1 has a center M319808 wire ΙΟΟ (as shown in Fig. 3), which passes through the center of the upper surface 11 and the class hole 19 of the disposable blade 10, and therefore, the disposable blade 10 is locked. When the blade holder 21 is fixed, as shown in FIG. 7, the blade center line 100 is parallel to the tool bar center line 200, which is viewed from a side view; and the blade center line 100 is viewed from the top view of FIG. The center line 200 of the arbor also has a slight deviation distance e, and the deviation distance e is still between 0. 05mm~0. 1 Between, the cutting edge 131 of the discarding blade 10 is in the direction of deviation, when When the cutter bar 20 is rotated, only the trimming 131 first cuts the workpiece, so only the trimming 131 There is a cutting function, and the other cutting edge has no cutting function, and the cutting edge is called a safety edge 141. Referring to Figures 1 and 3, the creation is surrounded by two sides 13, 14 (15, 16). Only the one side 13 (15) has cut edges 131, 151. The cut edge 13 151 has The bevel 112 and the bevel 112 of the other safety edge 141 (161) are far apart, so that only the trim 131 has a sharp cutting function, and the other safety edge 141 has no cutting function, so that the trim 131, 151 has sharpness. Cutting edge and fast chip removal function, and no chipping phenomenon, the surface of the drilled hole is smooth without burrs, the spindle speed and feed rate of the tool can be improved, effectively improving the processing speed and reducing the processing. Time and cost. Please refer to Figures 6 and 8. Another feature of the creation is the function of supporting the safety edges 141, 161 without cutting function. As shown in the figure, the discarding blade 10 is biased by a small distance e-lock. It is fixed on the center drilled shank 20, so only the unilateral trim 131 produces a cutting function during drilling, as shown in Fig. 8, when the trim 131 is mirrored on the other side of the center line (cum safe side) 8 M319808
141)，切邊131鏡射之投影線130與安全邊141之間卩宇d 之值為0.065mm (當偏離距離e值為〇_ 1mm)，間隙d之 值非常微小，當鑽削產生切削阻力R時，將會導致給棄式 刀片10產升微小變形，由於間隙d之值非常微小，安全逆 141將會與中心孔50接觸，中心孔50對安全邊141產生支 撐力S，因此，該安全邊141是作為支撐面之功能，該捨棄 式刀片10左右兩邊之切削阻力R與支撐力8相互平衡，因 此不會有振動之現象發生，刀桿20之轉速及進刀速率得以 提升，有效提升加工速度並降低加工之時間與成本。 月述之實施例中，捨棄式刀片1〇之中心線1〇〇與刀桿 中心線200的偏離距離e值為〇 lmm，偏離所產生間隙值d 貝J為0· 065mm倘保偏離距離e值為〇· 〇5mm時，偏離所產 生間隙值d則為G.G325_，間隙值更小，這代表刀桿2〇末 端之變形量更加微小，無切削能力之安全邊141之支撐靈 敏度更加顯著，只要捨棄式刀片1()有進刀鑽削，產生切削 2 f 4，刀卜末端之微_量齡發生，安全邊141就 :二、。孔50接觸而產生支揮之功效，捨棄式刀片10之 受力就會平衡，轉速及進刀速率就可以提升。 川二!11之:卜’ ί刀桿末端受力產生微小之變形量仍是刀桿 之彈性範圍内，當_結束時，中讀將會停駐約 此時刀桿20末端之微量變形將會彈性回覆，捨棄 :吝&1G將會回覆至正確之尺寸位置，切邊131同步回覆 鐵削並鑽削出正確之中心孔尺寸位置，這微量之 鑽不但鑽削出料位置之中心孔，更使鑽削之中心孔表 9 M319808 面更加光滑，降低表面粗糙度值。 ^創作之捨棄式刀片1〇除具有鑽削中 二，:_雕刻文字、各種花紋、”形槽(如= =—功能，具有多功能合- 綜上所述，本創作中心鑽用之捨棄式刀片，且有單刀 刀加工低阻力之優點，無切削功能之安全邊具有支撐之功 能，因此能夠提高轉速及進刀速率，克服傳統之缺點 f創贿、實用性及產業之利用性，符合新型專利之要件。 【圖式簡單說明】 第1圖係本發明中心鑽刀片之立體圖 第2圖係本發明中心鑽刀片之仰視立體圖 第3圖係本發明中心鑽刀片之俯視圖 第4圖係本發明第3圖之A—a剖視圖 第5圖係本發明刀桿之俯視圖 =6圖係本發明中心鑽刀片鎖固於刀桿之俯視圖 第7圖係本發明中心鑽刀片鎖固於刀桿之側視圖 第8圖係本發明中心鑽刀片鑽削之實施例圖 第9圖係本發明中心鑽刀片銑v形槽之實施例圖 第10圖本發明中心鑽刀片倒角之實施例圖 第11圖係習用整體研磨式中心鑽刀具之平面圖 第12圖係習用捨棄式中心鑽刀具之俯視圖 第13圖係習用捨棄式中心鑽刀具之鑽削實施例圖 【主要元件符號說明】 M319808 10捨棄式刀片 100中心線 11上平面 111低平面 112邊斜面 12下平面 13，14，15，16 邊面 131、151 切邊 141安全邊 17圓弧面 18侧邊面 19階級孔 /3傾角 20刀桿 200刀桿中心線 21刀座 211螺孔偏離 e距離。 3中心鑽頭 31刀刃 R切削阻力 4捨棄式中心鑽 40刀桿 400中心軸線 41捨棄式刀片 411右切邊 410鏡射線 412左切邊 11141), the value of the d between the projection line 130 and the safety edge 141 of the trimming 131 is 0.065 mm (when the deviation distance e is 〇 _ 1 mm), the value of the gap d is very small, and the cutting is performed when drilling When the resistance R is reached, the disposable blade 10 will be slightly deformed. Since the value of the gap d is very small, the safety reverse 141 will come into contact with the center hole 50, and the center hole 50 will generate a supporting force S to the safety edge 141. The safety edge 141 functions as a support surface. The cutting resistance R and the support force 8 of the left and right sides of the disposable blade 10 are balanced with each other, so that no vibration occurs, and the rotation speed and the feed rate of the cutter bar 20 are improved. Effectively increase processing speed and reduce processing time and cost. In the embodiment described in the month, the deviation distance e of the center line 1〇〇 of the disposable blade 1〇〇 and the center line 200 of the cutter bar is 〇lmm, and the value of the gap generated by the offset d is J·065mm. When the value is 〇· 〇5mm, the gap value d generated by the deviation is G.G325_, and the gap value is smaller, which means that the deformation amount of the end of the shank 2 is even smaller, and the support sensitivity of the safety edge 141 without cutting ability is more remarkable. As long as the disposable blade 1 () has the infeed drilling, the cutting 2 f 4 is generated, the micro-age of the end of the blade occurs, and the safety edge 141 is: II. The hole 50 is contacted to produce a branching effect, and the force of the discarding blade 10 is balanced, and the rotational speed and the feed rate can be increased. Chuan Er! 11: Bu' ί The end of the arbor force is slightly deformed by the force of the arbor. When _ is finished, the middle reading will stop at about the slight deformation of the end of the arbor 20 Will be elastically replied, discard: 吝 & 1G will be returned to the correct size position, trim 131 synchronously back iron and drill the correct center hole size position, this micro drill not only drills the center hole of the discharge position The surface of the drilled center hole table 9 M319808 is smoother and the surface roughness value is reduced. ^The creative discarding blade 1〇 has the second in drilling,: _ engraving text, various patterns, "shaped grooves (such as = = - function, with multi-functional combination - in summary, the creative center drilled away Blades, and the advantages of single-knife machining with low resistance, the safety side without cutting function has the function of support, so it can improve the speed and feed rate, overcome the traditional shortcomings, create bribe, practicality and industrial utilization, in line with BRIEF DESCRIPTION OF THE DRAWINGS [Brief Description] Fig. 1 is a perspective view of a center drill blade of the present invention. Fig. 2 is a bottom perspective view of the center drill blade of the present invention. Fig. 3 is a plan view of the center drill blade of the present invention. Figure 3A-a cross-sectional view of Fig. 5 is a plan view of the tool holder of the present invention = 6 is a top view of the center drill blade of the present invention locked to the arbor. Fig. 7 is a center drill blade of the present invention locked to the arbor 8 is an embodiment of a center drill blade drilling of the present invention. FIG. 9 is an embodiment of a center drill blade milling v-groove of the present invention. FIG. 10 is an embodiment of a center drill blade chamfer of the present invention. Drawing system Plan view of the center drilling tool Fig. 12 is a top view of the conventional centering tool. Fig. 13 is a drilling example of the conventional centering tool. [Main component symbol description] M319808 10 discarding blade 100 center line 11 upper plane 111 low plane 112 side slope 12 lower plane 13, 14, 15, 16 side surface 131, 151 cut edge 141 safety edge 17 arc surface 18 side surface 19 class hole / 3 inclination 20 shank 200 shank center line 21 knife Block 211 screw hole deviates from e distance. 3 Center drill bit 31 blade R cutting resistance 4 discarding center drill 40 shank 400 center axis 41 discarding blade 411 right cut side 410 mirror ray 412 left cut edge 11