8刀位盘型电动刀塔设计

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题目 8刀位盘型电动刀塔设计学生姓名 ee 学号

所在学院机械工程学院

专业班级 ee

指导教师

完成地点

2009年06月10日

8刀位盘型电动刀塔设计

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（ee）

指导教师：###

[摘要]数控刀架的发展趋势是：随着数控车床的发展，数控刀架开始向快速换刀、电液组合驱动和伺服驱动方向发展。根据加工对象不同，有四方刀架、六角刀架和八（或更多）工位的圆盘式轴向装刀刀架等多种形式。回转刀架上分别安装四把、六把或更多刀具，并按数控装置的指令换刀。本部分主要对八工位盘型式电动刀架的机械部分的设计，并对以上部分运用PRO/e做图，并生成二维装配图，以便对刀塔有更直观的了解。本次设计为八工位盘型电动刀塔，刀盘转位、刀盘的轴向移动以及动力刀头的旋转均通过同一台三项异步电机驱动，动力通过一级齿轮减速后，分为两个传递路线，其中一条直接传递到动力刀头轴，为动力刀具旋转提供动力；而另一条则再通过一级齿轮减速后，传递到刀盘轴，为刀盘转位和轴向移动提供动力。这两条传递路线的接通与断开均由电磁离合器控制，当需要转位时电磁离合器1将第一条传递路线断开，电磁离合器2将第二条传递路线接通，此时动力刀头轴不旋转，刀盘先轴向移动，当端齿盘完全脱开后，刀盘开始转动，实现换刀过程，当刀盘转到位时，控制系统发信号，立即进行制动，电机开始反转，左右端齿盘啮合以锁紧刀盘。当需要的动力刀具旋转时，电磁离合器将第一条传递路线接通，电磁离合器2将第二条传递路线断开，此时刀盘即不转位也不移动，可进行车削加工、钻削加工、铣削加工等加工。

[关键词]：数控刀架 ;车削中心 ;电动刀塔;八位盘型

The Design of Eight Locations Disc Turret for CNC

Automatic Lathe Center

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Totur: ###

Abstract：The numerical control tool rest's trend of development is: Along with the numerical control lathe's development, the battery solution combination actuation and the servo fast actuates the direction to develop. It is different according to the processing object, has the squaring head, the turret head and eight (or more) the location disk axial attire knife tool rest and so on many kinds of forms. On the turret saddle installs four, six or more cutting tools separately, and trades the knife according to the numerical control installment's instruction. This part mainly to eight location vertical electrically operated tool rest's mechanical design. Then makes the chart to above part using PRO/e, and has a more direct-viewing understanding to the automatic tool turret. The design for the electric drive eight locations disc turret, turn the cutter bit, the cutter head axial rotation movement and momentum are by the same three asynchronous motor drive, power through a gear reducer, the divided two transmission lines, one directly to the power head shaft-driven rotary powered tool; the other one after another through a gear reducer, passed to the cutter shaft, the cutter translocation and axial movement to provide power. These two transmission lines connected and disconnected by the electromagnetic clutch control, when to change position when the electromagnetic clutch 1 will disconnect the first delivery route, the electromagnetic clutch 2, the second transmission line will connect, then power head shaft not rotating cutter first axial movement, when the crown wheel completely torn off, the cutter began to turn, to achieve tool change process, as the cutter to position, the control system signal, immediately braking, the motor began to reverse , left-side gear tooth plate to lock cutter. When it comes to power tool rotation, electromagnetic clutch to connect the first transmission line, electromagnetic clutch 2, the second transmission line will disconnect at this time that does not turn the cutter bit is not mobile, could be turning, drilling, mi lling and other processing.

Key word:numerical control tool rest;CNC automatic lathe center;electrically operated tool turret; eight locations disc turret