早教吧 育儿知识 作业答案 考试题库 百科 知识分享

英语翻译Mostmillingmachinesareequippedwithpowerfeedforoneormoreaxes.Powerfeedissmootherthanmanualfeedand,therefore,canproduceabettersurfacefinish.Powerfeedalsoreducesoperatorfatigueonlongcuts.Onsomemachines,thep

题目详情
英语翻译
Most milling machines are equipped with power feed for one or more axes.Power feed is smoother than manual feed and,therefore,can produce a better surface finish.Power feed also reduces operator fatigue on long cuts.On some machines,the power feed is controlled by a forward reverse lever and a speed control knob.
▼优质解答
答案和解析
多数铣床装配有单轴或多轴电动进给装置.电动进给比手动进给更平顺,因此加工出的表面更精细.电动进给还能在长时间切割时减少操作人员的疲劳程度.在一些铣床上,电动进给由一个正/反向操作杆和速度控制把手控制.