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二、液压系统设计举例(续) (二)车床液压系统设计 1.车床对液压系统要求 (1)加工对象为轴类、盘类及套类零件: (2)工艺范围广,应能满足表4工作循环,加工精度达2级,光洁度为▽6; (3)进给速度要求平稳,能无级调速; (4)液压系统应满足自动化要求; (5) 快速运动4～6米/分;最小进给速度0.5～0.8毫米/分;(6) 系统发热量小;(7) 维修方便。 2.CB3450—1转塔车床液压系统设计计算 (1)工况分析 1)机床主要技术参数及要求
Second, the hydraulic system design examples (continued) (b) lathe hydraulic system design 1 lathe on the hydraulic system requirements (1) the processing object shaft, disc and sets of parts: (2) a wide range of processes should be able to meet the table 4 working cycle, machining accuracy of 2, the finish is ▽ 6; (3) the feed rate requires a smooth, stepless speed regulation; (4) hydraulic system should meet the requirements of automation; (5) rapid movement of 4 to 6 m / Min; the minimum feed rate 0.5 ~ 0.8 mm / min; (6) the system heat is small; (7) easy maintenance. 2.CB3450-1 turret lathe hydraulic system design and calculation (1) condition analysis 1) The main technical parameters of machine tools and requirements