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汉语拼音：lóng mén bào

刨床的一种，机床的立柱和横梁结构形状像门，适用于加工较大的平面。加工时工件固定在工作台上做往复运动，刀具沿着横梁或立柱做相应的间歇运动。

• The system reconstructed traditional B2012A gantry plane electricity control by using PLC and electric power, electron current technology.

  运用PLC技术和电力电子变流技术，改造传统的B2012A型龙门刨电控系统。

• Closed Planer table of the process by Siemens PLC control of the main converter series AC motor drive to achieve.

  龙门刨床工作台的工艺流程由西门子系列PLC控制主变频器驱动交流电动机来实现。

• and the shaper are adapted to the machining of flat surfaces, they differ widely in construction and in method of operation.

  尽管龙门刨床和牛头刨床都适合加工平面，但是在结构上和操作方法上却有很大的差异。

• An idea of crossrail and gearbox maintenance and electric system renovation for HD12. 5 planer.

  介绍了HD12。5龙门刨床横梁、齿轮箱修理及电气系统改造方案。

• The bed of the planer must be more than twice aslongas the table.

  龙门刨床的床身长度必须是工作台的两倍以上。

• Probe into the Design Thought of the Feeding System of the Light Closed Planer

  轻型龙门刨床进给系统设计思想的探讨

• The Improved Methods of the Main Transmission System Switch of Gantry Planer

  龙门刨床主传动系统行程开关的改进

• The Application of PLC in the Reversing Gear of a Double Housing Planer

  PLC在龙门刨换向机构中的应用

• The application of the speed-regulating system of switch reluctance motor on double housing planer

  开关磁阻电动机调速系统在龙门刨床上的应用