数控加工中心盘式刀库设计【参考】.doc

数控加工中心盘式刀库设计ABSTRACT CNC machining technology is rapidly gaining popularity and development of high speed machining center as a representative of the new era of CNC machine tools, widely used in the machine tool field. Automatic tool changer tool library development seems to have gone beyond the role of CNC machining centers supporting its unique technology developed to meet the unique product of high-precision machine tools, high-efficiency, high reliability and multi-task complex concepts.The tool magazine one of the most important part as a processing center, its development also directly determines the development of the processing center. The completion of this thesis is the overall design of the disc tool storage, transmission design, structural design, tool magazine, out knife failure analysis and processing, and transmission part of the movement and dynamic design.Very extensive library of this knife on a CNC machining center, tool change process is simple, time is short, high positioning accuracy; the overall structure is simple, compact, accurate and reliable; easy maintenance and low cost.Deceleration parts of two of the magazine downshift a gear reduction, two worm deceleration device, this program can improve the output shaft of the transmission smooth performance, is to enhance the smooth operation of the cutter. Key words: Machining centers; Disc knife library; manipulator; Automatically change the knife 目 录] ===314.29 [] ===244.29 计算载荷系数K。 K==1.251.0611.35=1.789 查取齿形系数。 由表10－5查得 =2.80;=2.40。 查取应力校正系数。 由表10－5查得 =1.55;=1.67。 计算大、小齿轮的并加以比较。 ==0.01381 ==0.01640 大齿轮的数值大。 设计计算 M mm =0.81 mm 故可知上面所预选的模数m=2符合设计要求。 ===20 大齿轮齿数 =220=40。 3.1.4几何尺寸计算 （1）计算分度圆直径 =m=202=40 mm =m=402=80 mm 计算中心距 a==mm = 60mm （3）计算齿轮宽度 根据机床实际设计取值，取=20mm,=15mm。 3.1.5结构设计及绘制齿轮零件图 图3-1 3.2轴的校核 受力分析图及弯扭矩图： （1）计算作用在轴上的作用力 蜗轮：由于轴3的输入转矩=53.51 Nm 则由式= 为涡轮的分度圆直径，=62.25mm 可得=/=53.51/0.06225=859.60N 这个力是作用在蜗轮上，对轴3产