| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 1 | 螺旋丝锥 | CN201280071267.9 | 2012-03-09 | CN104159692A | 2014-11-19 | 伊藤实朗 |
| 本发明提供在镍基耐热合金、沉淀硬化不锈钢等耐热合金这样的难削材料的内螺纹切削中也能够获得耐久性的螺旋丝锥。螺旋丝锥(10)具有形成了外螺纹(16)的螺纹部(12)、与外螺纹(16)的螺纹牙交叉地形成的螺旋状的一次槽(22)、和以比一次槽(22)的螺旋角(α)小的螺旋角形成在一次槽(22)的前端部上的二次槽(26)，其中，二次槽(26)具有0～3°的正或负的螺旋角(β)，形成在二次槽(26)的朝向丝锥旋转方向(T)的侧壁面(23)和螺纹部(12)的外周面之间的棱线上的切削刃(24)具有-10～0°的前角(S)，而且二次槽(26)具有5～15°的槽底梯度(K)。由此，在45HRC的镍基耐热合金这样的难削材料的内螺纹加工时，丝锥寿命大幅提高，能够获得耐久性高的丝锥。 | ||||||
| 2 | 螺旋丝锥 | CN200780001109.5 | 2007-04-26 | CN101400469B | 2014-10-22 | 中岛孝之; 佐藤利广 |
| 螺旋槽(20)具有恒定导程部(20a)和渐增导程部(20b)，恒定导程部(20a)其轴向长度在0.3×LA～1.2×LA的范围内，至少包含全部的切入部(22)，故该切入部(22)中切刃(28)的切削性能及切削屑形态(卷曲形状等)稳定。恒定导程部(20a)其导程最小而扭转角大，故切刃(28)的前角变大，可得到优异的切削质量，且切削屑也良好地卷曲，另一方面，在渐增导程部(20b)中，导程朝着柄(12)侧渐渐增大，故切削屑迅速排出到柄(12)侧。即，因恒定导程部(20a)的存在而能更加稳定地得到借助渐增导程得到的优良切削性能及切削屑排出性能，故更加提高耐久性。 | ||||||
| 3 | 螺旋丝锥 | CN201280071267.9 | 2012-03-09 | CN104159692B | 2016-07-13 | 伊藤实朗 |
| 本发明提供在镍基耐热合金、沉淀硬化不锈钢等耐热合金这样的难削材料的内螺纹切削中也能够获得耐久性的螺旋丝锥。螺旋丝锥(10)具有形成了外螺纹(16)的螺纹部(12)、与外螺纹(16)的螺纹牙交叉地形成的螺旋状的一次槽(22)、和以比一次槽(22)的螺旋角(α)小的螺旋角形成在一次槽(22)的前端部上的二次槽(26)，其中，二次槽(26)具有0～3°的正或负的螺旋角(β)，形成在二次槽(26)的朝向丝锥旋转方向(T)的侧壁面(23)和螺纹部(12)的外周面之间的棱线上的切削刃(24)具有-10～0°的前角(S)，而且二次槽(26)具有5～15°的槽底梯度(K)。由此，在45HRC的镍基耐热合金这样的难削材料的内螺纹加工时，丝锥寿命大幅提高，能够获得耐久性高的丝锥。 | ||||||
| 4 | 螺纹切割铣刀 | CN200780101791.5 | 2007-10-29 | CN101883654B | 2012-11-28 | 大泽二朗 |
| 如图2的展开图所示，通过使扭曲槽(16a)、(16c)的导程角(α)与围绕轴心相邻的扭曲槽(16b)、(16d)的导程角(β)不同，来使沿扭曲槽(16a)、(16c)设置的切削刃(20a)、(20c)的导程角(α)与围绕轴心相邻的切削刃(20b)、(20d)的导程角(β)不同，使这些切削刃(20a～20d)的间隔在轴向连续变化，因此，围绕轴心(S)的切削刃(20a～20d)的间隔不等。据此，切削加工螺纹时的切削阻力的增减变得不规则，因共振而产生的颤振得到抑制，能够在各种加工条件下以优异的加工精度切削加工螺纹。 | ||||||
| 5 | 螺纹切割铣刀 | CN200780101791.5 | 2007-10-29 | CN101883654A | 2010-11-10 | 大泽二朗 |
| 如图2的展开图所示，通过使扭曲槽(16a)、(16c)的导程角(α)与围绕轴心相邻的扭曲槽(16b)、(16d)的导程角(β)不同，来使沿扭曲槽(16a)、(16c)设置的切削刃(20a)、(20c)的导程角(α)与围绕轴心相邻的切削刃(20b)、(20d)的导程角(β)不同，使这些切削刃(20a～20d)的间隔在轴向连续变化，因此，围绕轴心(S)的切削刃(20a～20d)的间隔不等。据此，切削加工螺纹时的切削阻力的增减变得不规则，因共振而产生的颤振得到抑制，能够在各种加工条件下以优异的加工精度切削加工螺纹。 | ||||||
| 6 | 螺旋丝锥 | CN200780001109.5 | 2007-04-26 | CN101400469A | 2009-04-01 | 中岛孝之; 佐藤利广 |
| 如图1所示，螺旋槽(20)具有恒定导程部(20a)和渐增导程部(20b)，恒定导程部(20a)其轴向长度在0.3×LA～1.2×LA的范围内，至少包含全部的切入部(22)，故该切入部(22)中切刃(28)的切削性能及切削屑形态(卷曲形状等)稳定。恒定导程部(20a)其导程最小而扭转角大，故切刃(28)的前角变大，可得到优异的切削质量，且切削屑也良好地卷曲，另一方面，在渐增导程部(20b)中，导程朝着柄(12)侧渐渐增大，故切削屑迅速排出到柄(12)侧。即，因恒定导程部(20a)的存在而能更加稳定地得到借助渐增导程得到的优良切削性能及切削屑排出性能，故更加提高耐久性。 | ||||||
| 7 | Spiral tap | US11990686 | 2007-04-26 | US08186915B2 | 2012-05-29 | Takayuki Nakajima; Toshihiro Sato |
| A helical flute has a constant lead part and a gradually increased lead part. The constant lead part has an axial length ranging from 0.3×LA to 1.2×LA and includes at least entirety of a leading part, so that the cutting performance of a cutting edge at the leading part and shape of chips (curled shape, etc.) are stable. In the constant lead part, because a lead is the smallest and a helix angle is large, a rake angle of the cutting edge is large, so that an excellent cutting quality is obtained and the chips become curled well. Meanwhile, in the gradually increased lead part, because of the lead gradually increased toward a shank, the chips are rapidly discharged toward the shank. | ||||||
| 8 | Compound die for dual thread forming | US14218526 | 2014-03-18 | US09643237B1 | 2017-05-09 | Mark Doll; Zebula Doll |
| The compound die includes a working surface with a coarse end for forming coarse threads and a fine end for forming fine threads. The coarse end has coarse crests and coarse roots thereon angled at a coarse thread pitch angle for the screw to be formed. The fine end has fine crests and fine roots formed into a working surface thereof at an angle matching a pitch angle for the fine threads of the screw to be formed. A transition is provided between the coarse end and fine end where each of the coarse roots is aligned with one of the fine roots. A screw such as a bolt is roll formed by first being rolled between a standard die parallel with the compound die and a course end of the compound die, followed by rolling between the standard die and the fine end of the compound die. | ||||||
| 9 | SPIRAL TAP | US14382161 | 2012-03-09 | US20150016911A1 | 2015-01-15 | Jitsuro Ito |
| A spiral tap including: a screw portion provided with a male screw; a primary flute in a helical shape formed to intersect with a screw thread of the male screw; and a secondary flute formed in a tip portion in the primary flute at a helix angle smaller than a helix angle of the primary flute, the secondary flute having a positive or negative helix angle of 0 to 3 degrees, the spiral tap further including a cutting edge being formed on a ridgeline between a side wall surface toward a tap rotation direction out of a pair of side wall surfaces of the secondary flute and an outer circumferential surface of the screw portion and having a rake angle of −10 to 0 degrees, and the secondary flute having a flute bottom slope of 5 to 15 degrees. | ||||||
| 10 | Spiral Tap | JP2007541233 | 2007-04-26 | JP4652413B2 | 2011-03-16 | 孝之 中嶋; 利廣 佐藤 |
| 11 | スパイラルタップ | JP2007541233 | 2007-04-26 | JPWO2008136123A1 | 2010-07-29 | 孝之 中嶋; 利廣 佐藤 |
| 図1に示すように、ねじれ溝20が一定リード部20aと漸増リード部20bとを有し、一定リード部20aは、その軸方向長さが0.3×LA〜1.2×LAの範囲内で少なくとも食付き部22を総て含んでいるため、その食付き部22における切れ刃28の切削性能や切り屑の形態(カール形状等)が安定する。一定リード部20aはリードが最も小さくてねじれ角が大きいため、切れ刃28のすくい角が大きくなって優れた切れ味が得られるとともに切り屑が良好にカールさせられる一方、漸増リード部20bではシャンク12側へ向かうに従ってリードが徐々に増大させられているため、切り屑が速やかにシャンク12側へ排出される。すなわち、漸増リードによって得られる優れた切削性能および切り屑排出性能が、一定リード部20aの存在でより安定して得られるようになるのであり、耐久性が一層向上する。 | ||||||
| 12 | SPIRAL TAP | EP12870601.7 | 2012-03-09 | EP2823925B1 | 2017-09-13 | ITO Jitsuro |
| 13 | SPIRAL FLUTE TAP WITH CONTINUOUSLY INCREASING HELIX ANGLE | US15609222 | 2017-05-31 | US20180345394A1 | 2018-12-06 | Yan Yan; Stephen Michael George |
| A spiral flute tap includes a body having an axial forward end and an axial rearward end. The body has a cylindrical shank portion adjacent the axial rearward end, a threaded fluted portion adjacent the axial forward end, a non-threaded fluted portion between the cylindrical shank portion and the threaded fluted portion, and a central, longitudinal axis. The spiral flute tap further includes a plurality of helical flutes formed at a helix angle, HA, with respect to the central, longitudinal axis of the tap that continuously increases in magnitude in the threaded fluted portion. In other words, the lead of the plurality of helical flutes continuously decreases in magnitude in a rearward direction for a predetermined distance. In one example, the helix angle, HA, varies at a rate of between 0.5 degrees/mm to 4.0 degrees/mm. A method of making the spiral flute tap is also disclosed. | ||||||
| 14 | THREAD MILLING CUTTER | US12734371 | 2007-10-29 | US20100260568A1 | 2010-10-14 | Jiro Osawa |
| As shown in a development view of FIG. 2, spiral flutes 16a and 16c have a lead angle α different from a lead angle β of spiral flutes 16b and 16d adjacently placed circumferentially to allow the lead angle β of cutting edges 20a and 20c, formed along the spiral flutes 16a and 16c, respectively, to be different from the lead angle α of cutting edges 20b and 20d adjacently placed circumferentially. This causes the cutting edges 20a to 20d to have intervals that axially vary in series such that the cutting edges 20a to 20d have unequal intervals. This results in irregular increase or decrease in milling resistance encountered during milling of a thread, thereby suppressing the occurrence of chatter vibration due to resonance with a capability of milling the thread with excellent milling precision under various milling conditions. | ||||||
| 15 | Spiral tap | US11990686 | 2007-04-26 | US20090214311A1 | 2009-08-27 | Takayuki Nakajima; Toshihiro Sato |
| As shown in FIG. 1, a helical flute has a constant lead part and a gradually increased lead part. The constant lead part has an axial length ranging from 0.3xLA to 1.2xLA and includes at least entirety of a leading part, so that the cutting performance of a cutting edge at the leading part and shape of chips (curled shape, etc.) are stable. In the constant lead part, because a lead is the smallest and a helix angle is large, a rake angle of the cutting edge is large, so that an excellent cutting quality is obtained and the chips become curled well. Meanwhile, in the gradually increased lead part, because of the lead gradually increased toward a shank, the chips are rapidly discharged toward the shank. Thus, the excellent cutting performance and the chip discharge performance rendered by the gradually increased lead are highly stabilized by the presence of the constant lead part. In this way, the durability is further improved. | ||||||
| 16 | SPIRAL TAP | EP12870601 | 2012-03-09 | EP2823925A4 | 2015-12-30 | ITO JITSURO |
| 17 | SPIRAL TAP | EP12870601.7 | 2012-03-09 | EP2823925A1 | 2015-01-14 | ITO Jitsuro |
Provided is a spiral tap that obtains durability in the cutting of an internal thread of a difficult-to-machine material such as a heat-resistant alloy such as a nickel-based heat-resistant alloy or a precipitation hardening stainless steel. The spiral tap (10) is provided with: a thread section (12) at which an external thread (16) is formed; a spiral primary groove (22) formed in a manner so as to intersect the thread ridge of the external thread (16); and a secondary groove (26) formed at the tip of the primary groove (22) at a smaller torsion angle than the torsion angle (α) of the primary groove (22). The secondary groove (26) has a positive or negative torsion angle (β) of 0-3°, the cutting edge (24) formed at the ridge between the outer peripheral surface of the thread section (12) and the lateral wall surface (23) facing the tap rotational direction (T) of the secondary groove (26)has a rake angle (S) of -10° to 0°, and furthermore the secondary groove (26) has a groove floor slope (K) of 5-15°. As a result, when machining external threads in a difficult-to-machine material such as a 45 HRC nickel-based heat-resistant alloy, tap life is greatly increased, and a highly durable tap is obtained. |
||||||
| 18 | スパイラルタップ | JP2014503405 | 2012-03-09 | JPWO2013132665A1 | 2015-07-30 | 実朗 伊藤 |
| ニッケル基耐熱合金、析出硬化系ステンレス鋼などの耐熱合金のような難削材の雌ねじ切削において耐久性が得られるスパイラルタップを提供する。雄ねじ(16)が形成されたねじ部(12)と、雄ねじ(16)のねじ山と交差するように形成された螺旋状の一次溝(22)と、一次溝(22)のねじれ角αよりも小さいねじれ角で一次溝(22)の先端部に形成された二次溝(26)とを備えるスパイラルタップ(10)であって、二次溝(26)は0〜3?の正または負のねじれ角&bgr;を有し、二次溝(26)のタップ回転方向Tに向かう側壁面(23)とねじ部(12)の外周面との間の稜線に形成された切れ刃(24)は−10〜0?のすくい角Sを有し、さらに二次溝(26)は5〜15?の溝底勾配Kを有する。このため、45HRCのニッケル基耐熱合金のような難削材の雌ねじ加工に際してタップ寿命が大幅に向上し、耐久性の高いタップが得られる。 | ||||||
| 19 | スパイラルタップ | JP2014503405 | 2012-03-09 | JP5756562B2 | 2015-07-29 | 伊藤 実朗 |
| 20 | Threading Milling | JP2009538868 | 2007-10-29 | JP4996694B2 | 2012-08-08 | 二朗 大沢 |
QQ群二维码
意见反馈
意见反馈