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    • 4. 发明授权
    • Flame-cutting apparatus
    • 火焰切割设备
    • US4127256A
    • 1978-11-28
    • US833071
    • 1977-09-13
    • Hans Jacobs
    • Hans Jacobs
    • B23K7/00B23K9/032B23Q35/10B23K7/04
    • B23K7/007B23K9/032B23Q35/10
    • A flame-cutting apparatus comprising a burner guided for movement around a rotating pipe to travel along a curved path along the surface of the pipe corresponding to the line of intersection of two pipes. The burner is pivotably supported on a guide for movement about an axis perpendicular to the axis of the jet flame of the burner. A template corresponding to a chamfer to be produced in the surface of the element being cut by the jet flame includes two parts, one being pivotable with respect to the other about an axis common to both parts. A scanner rotates at an angular velocity corresponding to the angular velocity of rotation of the pipe being cut and the template is resiliently urged against the scanner to be axially displaced thereby and to transmit such displacement through a mechanism to effect pivotal movement of the burner to produce the desired chamfer of the cut edge of the pipe.
    • 一种火焰切割装置,包括被引导以围绕旋转管移动的燃烧器,沿着沿着与两个管道的相交线相对应的管道的表面的弯曲路径行进。 燃烧器可枢转地支撑在引导件上以围绕垂直于燃烧器的喷射火焰的轴线的轴线移动。 在由喷射火焰切割的元件的表面中产生的与倒角相对应的模板包括两个部分,一个可相对于另一个围绕两个部分共同的轴线枢转。 扫描器以对应于被切割的管的旋转角速度的角速度旋转,并且模板被弹性地推靠在扫描仪上以被轴向移位,并且通过机构传递这种位移以实现燃烧器的枢转运动以产生 管道切割边缘的所需倒角。