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外文文獻翻譯機械數控機床(編輯修改稿)

2026-01-09 12:04 本頁面

　

【文章內容簡介】 own CNCmachine tools. Here are some examples for one machine type. Machining centers Automatic tool changer Most machining centers can hold many tools in a tool magazine. When requiredthe required tool can be automatically placed in the spindle for machining. Spindle speed and activation The spindle speed in revolutions per minute can be easily specified and thespindle can be turned on in a forward or reverse direction. It can also of coursebe turned off. Coolant Many machining operations require coolant for lubrication and cooling can be turned on and off from within the machine cycle. The CNC program Think of giving any series of stepbystep instructions. A CNC program isnothing more than another kind of instruction set. Its written in sentencelikeformat and the control will execute it in sequential order step by step. A special series of CNC words are used to municate what the machine isintended to do. CNC words begin with letter addresses like F for feedrate（饋送率） S for spindle speed and X Y Z for axis motion. When placed together ina logical method a group of CNC words make up a mand that resemble a any given CNC machine type there will only be about 4050 words used on a regularbasis. So if you pare learning to write CNC programs to learning a foreign languagehaving only 50 words it shouldnt seem overly difficult to learn CNC programming. The CNC control The CNC control will interpret a CNC program and activate the series of mandsin sequential order. As it reads the program the CNC control will activate theappropriate machine functions cause axis motion and in general follow theinstructions given in the program. Along with interpreting the CNC program the CNC control has several otherpurposes. All current model CNC controls allow programs to be modified edited ifmistakes are found. The CNC control allows special verification functions like dryrun to confirm the correctness of the CNC program. The CNC control allows certainimportant operator inputs to be specified separate from the program like tool lengthvalues. In general the CNC control allows all functions of the machine to bemanipulated. What is a CAM system For simple application like drilling holes the CNC progr

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