• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    A threaded pin includes a body having an axially leading end and an axially trailing end. The body has a threaded body portion with helical grooves adjacent to the axially front end, a cylindrical shaft portion adjacent the axially rear end. The threaded body portion includes a beveled grooved section and a constant diameter section. The threads have a cutting barrel release that extends radially inward from the cutting edge to an edge of a boom. The degree of cutting phase release reaches a maximum value at a point between the cutting edge and the edge, and then becomes smaller between the point of maximum release and the edge of the boom to provide a clearance that reduces the tendency of the threaded pin to chip.
    公开号:SE1350217A1
    申请号:SE1350217
    申请日:2013-02-25
    公开日:2013-09-08
    发明作者:Willard Henderer；Steven George；Timothy Moore
    申请人:Kennametal Inc；
    IPC主号:
    专利说明:

    [5] [0005]
    [6] [0006]
    [7] Strength. However, cemented carbide is preferred as a material for the manufacture of other cutting tools over high speed steels due to properties such as higher hardness and high temperature stability including the ability to maintain high temperature hardness.
    [8] [0008]
    [9] [0009]
    [10] B) materials are prone to form a long chip such as that shown. The moment the tap reaches the required depth, it stops and is thrown over. The newly formed chips attach to the wall of the hole.
    [18] [00018] [ooo191
    [20] [00020] [o00211 [ooozzl [ooozsl
    [24] [00024] and modifications can be made without departing from the scope of the invention.
    [29] [Oooso] [ooosij the range between about thirty (30) degrees and about ninety (90) degrees. After thread cutting with a threaded pin, the thread anchors 40a, 40b and the thread crown 30 come into contact with the newly produced internal thread. In general, the inner diameter 36 of the threaded pin 10 is intentionally designed to be larger than the inner diameter of the hole (not shown), and thus does not come into contact with the internal thread.
    [33] 100034]
    [35] Maximum at the edge 50 and the boom angle 62 and the maximum cutting phase clearance angle are equal.
    [40] In the next step, the threaded body portion 20 is ground to form V-shaped threaded surfaces 40, together with the inner and outer diameters 36 and 32, on a spiral. The V-shaped threaded ankle surfaces 40 and the outer diameter 38 reflect the internal screw thread generated during thread cutting with threaded studs.
    [46] 12 comprising alternating layers. Low friction layers can also be deposited on top of these wear-resistant layers.
    Benefit The threaded pin according to the invention has numerous advantages over existing threaded pin technology by reducing the cutting of cutting edges of threaded pins when the threaded pin is reversed while it is still cutting a thread, as in thread cutting with bottom hole threaded studs. Reduction of de-icing enables the use of more heat- and wear-resistant but less durable substrates such as cemented carbide. In addition, the threaded pin according to the invention has numerous advantages compared to durable threaded pin technology in that it improves the precision, tool life and speed with which internal screw threads can be manufactured.
    The patents and publications referred to in this document are hereby incorporated by reference.
    Currently preferred embodiments have been described, but the invention may be practiced otherwise within the scope of the appended claims.
    权利要求:
    Claims (10)
    [1]
    A threaded pin comprising a body having an axially leading end and an axially trailing end, the body having a threaded body portion with helical grooves adjacent to the axially leading end, a cylindrical shank portion adjacent the axially trailing end and a central longitudinal axis, the the threaded body portion comprises a chamfered grooved section and a constant diameter section, the chamfered grooved section extending from the axially front end and terminating in the constant diameter section, the constant diameter section comprising a cutting thread, a cutting edge formed in an intersection between the helical groove and the cutting thread, a cutting phase release extending radially inwardly from the cutting edge to an edge of a boom, a degree of cutting phase release being proportional to an angle measured from the cutting edge, and the degree of cutting phase release reaching a maximum value at a point between the cutting edge and the edge , and thereby cutting phase release n extends between the point of maximum shear phase release and the edge is directed radially outwards to form at the edge of the boom a clearance is formed which is less than the maximum value of the shear phase release.
    [2]
    A threaded pin according to claim 1, wherein the clearance is less than the feed per cutting edge.
    [3]
    A threaded pin according to claim 1, wherein the point with maximum cutting phase clearance is between the cutting edge and the edge.
    [4]
    A threaded pin according to claim 1, wherein a maximum cutting phase clearance angle is not equal to a boom angle.
    [5]
    A threaded pin according to claim 4, wherein the maximum cutting phase clearance angle is in a range between fifteen percent and eighty-five percent of the boom angle.
    [6]
    A threaded pin comprising a body having an axially leading end and an axially trailing end, the body having a threaded body portion with helical grooves 14 adjacent the axially leading end, a cylindrical shell portion adjacent the axially rear end and a central longitudinal axis, the threaded body portion comprises a chamfered grooved section and a constant diameter section, the chamfered grooved section extending from the axially forward end and terminating in the constant diameter section, the constant diameter section comprising a cutting thread formed in a cutting edge between the helical groove and the cutting thread, a cutting phase release extending radially inwardly from the cutting edge to an edge of a boom, a degree of cutting phase release being proportional to an angle measured from the cutting edge, and the cutting phase release reaching a maximum value at a point between the cutting edge and the edge, and wherein a maximum cutting barrel opening angle is not equal to a boom angle.
    [7]
    The threaded pin of claim 6, wherein the maximum cutting phase clearance angle is in a range between fifteen percent and eighty-five percent of the boom angle.
    [8]
    A threaded pin according to claim 6, wherein the cutting phase release extends between the point of maximum cutting phase release and the edge and is directed radially outwards to form at the edge of the boom a clearance less than the maximum value of the cutting phase release.
    [9]
    A threaded pin according to claim 8, wherein the clearance is less than the measurement per cutting edge.
    [10]
    A method of manufacturing a threaded pin, comprising the steps of: grinding a cylindrical bracket to form a cylindrical shell portion on an axially rear end of the threaded pin and a threaded body portion having an outer diameter on an axially forward end of the threaded pin; grinding a spiral groove in the threaded body portion to form a cutting edge; grinding the threaded body portion with a taper to form a beveled grooved section; and grinding the threaded body portion to form a cutting thread with a boom by moving a grinding wheel radially inward as the threaded pin is rotated away from the cutting edge to form a cutting phase release, whereby the cutting phase release reaches a maximum value at a point between the cutting edge boom and the cutting thread boom.
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    同族专利:
    公开号 | 公开日
    CN103302364B|2017-05-03|
    US20130236260A1|2013-09-12|
    US9011050B2|2015-04-21|
    DE102013101910A1|2013-09-12|
    KR20130102488A|2013-09-17|
    DE102013101910A8|2013-11-14|
    CN103302364A|2013-09-18|
    JP6232187B2|2017-11-15|
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    引用文献:
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    US700892A|1902-01-08|1902-05-27|Charles Bewicke Blackburn|Tap for cutting screw-threads.|
    GB1090875A|1964-08-16|1967-11-15|Firth Brown Tools Ltd|Improvements in screw-cutting taps|
    JPS5175696U|1974-12-10|1976-06-14|
    SU541606A1|1975-05-14|1977-01-05|Конструкторско-Технологический Институт Автоматизации И Механизации Автомобилестроения Ктиам|Tap|
    JPS5589522U|1978-12-15|1980-06-20|
    FR2610555A1|1987-02-05|1988-08-12|Rineau Freres Outillage Armor|Tap with improved guidance|
    DE3864058D1|1987-03-20|1991-09-12|Rineau Freres Ets|TAP DRILL.|
    SU1480986A1|1987-06-15|1989-05-23|Предприятие П/Я М-5605|Tap die|
    FR2623114A2|1987-11-13|1989-05-19|Rineau Freres Outillage Armor|Tap with improved guidance|
    RU1799699C|1990-08-06|1993-03-07|Производственное объединение "Южный машиностроительный завод"|Tap|
    JP3107671B2|1992-12-14|2000-11-13|オーエスジー株式会社|Twist groove tap, tapping method using the tap, and tapping machine|
    DE10155979A1|2001-11-14|2003-05-22|Sandvik Ab|Thread cutting tool has groups of teeth which have at least in part a radial under cut section on free surface behind cutting edge for longer service life|
    CN101284321B|2007-04-09|2010-09-29|陈�胜|Combination screw tap and manufacturing method thereof|
    US8210779B2|2008-10-14|2012-07-03|Kennametal Inc.|Cutting tap and method of making same|
    US20100221077A1|2009-02-27|2010-09-02|Irwin Industrial Tool Company|Tap with chip breaking chamfer|
    US8602696B2|2009-10-09|2013-12-10|Harry Leroy Ellis|Form tap having a plurality of lobes|
    JP6179121B2|2013-02-20|2017-08-16|東洋インキＳｃホールディングス株式会社|Colorant for color filter, coloring composition, and color filter|DE102013218321B4|2013-09-12|2015-09-03|Kennametal Inc.|Method for producing a concentricity tool and concentricity tool|
    CN103551681A|2013-11-05|2014-02-05|无锡雨田精密工具有限公司|Special-shaped screwer|
    KR102066804B1|2015-12-02|2020-01-15|오에스지 가부시키가이샤|Tapered Threaded Spiral Taps for Pipes|
    CN105798404A|2016-03-30|2016-07-27|广东特普丝精密工具有限公司|Extrusion screw tap|
    US10766083B2|2017-05-31|2020-09-08|Kennametal Inc.|Spiral flute tap with continuously increasing helix angle|
    CN107457457A|2017-08-17|2017-12-12|江苏星河阀门有限公司|Screw tap for steel alloy Cold Forming of Internal Thread|
    DE102018115986A1|2018-07-02|2020-01-02|EMUGE-Werk Richard Glimpel GmbH & Co. KG Fabrik für Präzisionswerkzeuge|Tool for creating a thread|
    法律状态:
    2015-09-22| NAV| Patent application has lapsed|
    优先权:
    申请号 | 申请日 | 专利标题
    US13/413,942|US9011050B2|2012-03-07|2012-03-07|Chip-resistant cutting tap|
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