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Computer numerical control
计算机数字控制
Since the introduction of DNC, there have been dramatic advances in computer technology.
由于DNC技术的介入,在计算机技术上得到了很大的发展。
The physical size and cost of a digital computer have been significantly reduced at the same time that its computational capabilities have been substantially increased.
计算机在尺寸和成本显著减少的同时,计算机的能力却有很大的提高。
In numerical control, the result of these advances has been that the large hard-wired MCU of conventional NC have been replaced by control units based on the digital computer. Initially, minicomputers were utilized in the early 1970s.
在数控中,这些发展使得由硬件布置的MCU变为数字电脑控制的控制单元。最早,小型机在1970 年使用。
As further miniaturization occurred in computers, minicomputers were replaced by today's microcomputers.
随着计算机进一步小型化,小型机被当今的微型机取代。
Computer numerical control is an NC system using dedicated microcomputer as the machine control unit.
计算机控制也是一种数字控制,它采用微型计算机作为控制单元。
Because a digital computer is used in both CNC and DNC, it is appropriate to distinguish between the two types of system. There are three principal differences:
由于数字电脑用于CNC 和DNC 中,只近似区分两种类型。有三个区分原则?
DNC computers distribute instructional data to, and collect data from, a large number of machines. CNC computers control only one machine, or a small number of machines.
DNC 电脑接受和发送指令数据都是来自许多机器,CNC 电脑控制只是一个机器或多个机器。
DNC computers occupy a location that is typically remote from the machines under their control. CNC computers are located very near their machine tools.
DNC 电脑占有一个位置通过控制来实现机器的旋转。CNC 电脑要非常靠近车床。
DNC software is developed not only to control individual pieces of production equipment, but also to serve as part of a management information system in the manufacturing sector of the firm.
DNC 软件的发展不经可以控制生产设备的每个单独零件,还可以在生产坚固性方面提供主要控制信息。
