1、 I 2500mm 数控滚齿机回转工作台设计 摘 要 此次毕业设计的题目是 2500mm 数控滚齿机回转工作台设计。通过对数 控滚齿机回转工作台的设计，使学生在步入社会之前，不仅能够设计出数控 回转工作台，而且能够掌握机械设计的方法和步骤。本设计研究的主要内容 包括：确定数控滚齿机回转工作台的传动方案；数控滚齿机回转工作台静压 系统设计；驱动力计算及其他相关计算；零件设计与校核；零件图的绘制与 三维模型建立。绘制装配图。 对于数控回转工作台的设计，首先，进行总体方案设计，传动方案采用 齿轮传动和蜗杆传动；然后进行各零件的设计与校核，蜗杆与轴采用整体式 结构；蜗轮与工作台采用螺钉连接；工作台的平
2、衡通过止推轴承来保证；箱 体由箱座、箱盖和顶盖组成，其中箱体上设计了圆台和加强筋；最后，对各 零件进行装配。 数控滚齿机的圆周进给由回转工作台完成，回转工作台可以与 X、Y、Z 三个坐标轴联动，从而加工出各种齿轮。回转工作台可以实现精确的自动分 度，提高了数控机床的精度。目前，数控回转工作台主要用于数控镗床和铣 床。 关键词：数控回转工作台；齿轮；蜗杆；箱体；建模 II DESIGN OF 2500 CNC GEAR HOBBING MACHINE ROTARY WORKTABLE ABSTRACT The topic of this graduation design is the desi
3、gn of 2500 CNC gear hobbing rotary worktable . Through the design of CNC gear hobbing rotary worktable, so that before the students entered the community, not only to design a CNC rotary worktable, but also can master the mechanical design of the methods and procedures. The main content of this desi
4、gn include: determining of the transmission scheme of CNC rotary worktable; design of pressure system ,calculation of driving force and the other related;design and check the parts; draw the part drawing and establish 3 d model; Draw the assembly drawing. The design of CNC rotary worktable, first of
5、 all, design of the overall , use of transmission scheme and worm gear to drive; then the design and checking of the parts, the whole worm and shaft structure; worm screw connection with the worktable; the balance of worktable through thrust bearings to ensure; box make up of the box seat, lid and c
6、over, the box body is designed a cone and stiffener;finally, all the parts are assembled. The Circular feed of CNC gear hobbing machine is completed by rotary table rotary worktable ,with X, Y, Z three axis linkage to work out all kinds of gears. Precision rotary worktable can realize automatic indexing, so can improve the precision of CNC gear hobbing machine. Currently, the NC rotary table CNC boring and milling machines are mainly used. Keywords: NC rotary worktable; gear; worm; box; modelin
