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    • 1. 发明授权
    • Apparatus for threading holes
    • 穿孔的装置
    • US4449868A
    • 1984-05-22
    • US333577
    • 1981-12-22
    • Karl SteinsbergerAlbert MaierWalter Herrmann
    • Karl SteinsbergerAlbert MaierWalter Herrmann
    • B23G3/04B23Q5/027
    • B23G3/04Y10T408/675Y10T408/68
    • Apparatus is disclosed for threading tapping holes in workpieces wherein the tapping hole is surrounded by a surface having alternating recesses and arcuate projections which are to be threaded. The apparatus has a hold-down plate one side of which is movable against the exposed side of the workpiece, a carrier which is reciprocable toward and away from the workpiece by a plunger and a spring, a tool holder which has external threads meshing with the internal threads of a nut in the hold-down plate and a helical cam groove receiving a pin of the carrier, and a fluted tap which is coaxially affixed to the holder and extends into the tapping hole when the hold-down plate abuts against the workpiece whereby the externally threaded ribs of the tap which alternate with the flutes extend into the recesses in the surface surrounding the tapping hole. The carrier is thereupon moved toward the hold-down plate to cause the tool holder to rotate whereby the tool holder moves axially and the tap cuts or rolls threads into the projections between the recesses in the surface surrounding the tapping hole. The length of the cam groove determines the extent of rotation of the tap, and such extent is selected with a view to ensure that each rib of the tap moves from a preceding recess into the next-following recess when the surface bounding one end of the cam groove terminates the movement of the carrier toward the hold-down plate. The carrier, the means for moving the carrier and the hold-down plate can constitute parts of a stamping machine.
    • 公开了用于在工件中攻丝孔的装置,其中,攻丝孔由具有交替凹槽的表面包围,并且要被螺纹化的弓形突起。 该装置具有压板,其一侧能抵靠工件的暴露侧移动,该支架可通过柱塞和弹簧向工件的往复运动;工具架,其具有与所述工件相啮合的外螺纹 压紧板中的螺母的内螺纹和容纳载体的销的螺旋形凸轮槽,以及当压紧板抵靠工件时同轴地固定到保持器并延伸到攻丝孔中的槽形丝锥 由此与凹槽交替的丝锥的外螺纹肋延伸到围绕出钢孔的表面中的凹槽中。 然后,承载件朝向压紧板移动以使工具夹持器旋转,由此工具夹持器轴向移动,并且挖掘头将螺纹切割或卷绕到围绕出料孔的表面中的凹部之间的突起中。 凸轮槽的长度决定了水龙头的旋转程度,并且这样的程度是选择的,以确保龙头的每个肋条从前一个凹槽移动到随后的凹槽中, 凸轮槽终止载体向压板的移动。 承载件,用于移动托架和压板的装置可以构成冲压机的一部分。
    • 10. 发明申请
    • METHOD OF PRODUCING A ROTATIONALLY ORIENTED THREAD
    • 生产旋转轴的螺纹的方法
    • US20160303672A1
    • 2016-10-20
    • US15038048
    • 2014-11-20
    • JAGUAR LAND ROVER LIMITED
    • Ben ONLEYStephen YEOMAN
    • B23G3/04H01T13/08B23G1/16
    • B23G3/04B23G1/16B23G7/00B23G2240/56G05B19/186H01T13/08
    • A method of producing a rotationally orientated thread starting at a desired angular position and suitable for mass production is provided. The method is particularly suitable for improving the angular positioning of spark plugs in car engines. The method involves measuring precisely the length (L) of the tool (13) and the distance, at a particular angular position, of a full thread form (14) of the thread to the tip, so that its start position at the tip can be calculated. Using that distance as an offset of the length of the tool reported to the CNC machine, and starting from its reference position, it commences producing the thread (12) in the bore (11) at the desired angular position of the bore (11).
    • 提供了一种从期望角度位置开始并适于批量生产的旋转定向线的制造方法。 该方法特别适用于改善汽车发动机中火花塞的角度定位。 该方法包括精确地测量工具(13)的长度(L)和在特定角度位置处的线的全螺纹形式(14)到尖端的距离,使得其在尖端处的起始位置 计算。 使用该距离作为报告给CNC机床的工具的长度的偏移,并且从其基准位置开始,在孔(11)的期望角度位置开始在孔(11)中产生螺纹(12) 。