数控加工作为一种高效率高精度的生产方式，尤其是形状复杂精度要求很高的模具制造行业，以及成批大量生产的零件。因此数控加工在航空业、电子行业还有其他各行业都广泛应用。然而在数控加工从零件图纸到做出合格的零件需要有一个比较严谨的工艺过程，必须合理安排加工工艺才能快速准确的加工出合格的零件来。

Numerical control machining is a kind of high efficiency and high precision production mode, especially in the mold manufacturing industry with complex shape and high precision requirements, as well as the mass production of parts. Therefore, NC machining is widely used in aviation, electronic industry and other industries. However, in the process of NC machining from part drawing to making qualified parts, there needs to be a more rigorous process. Only by reasonable arrangement of processing technology can qualified parts be processed quickly and accurately.

Step 1: X轴、Y轴、Z轴

三轴数控机床主要由X轴、Y轴、Z轴三个轴控制，每个轴都有一个步进电机控制轴的运转，同时x，y，z三个轴，MUCH 3控制系统总体控制,精准的控制每个轴的步进距离。

The three-axis CNC machine tool is mainly controlled by x-axis, Y-axis and z-axis. Each axis has a stepper motor to control the operation of the axis. At the same time, x, y and z-axis are controlled by the MUCH 3 control system as a whole, which precisely controls the step distance of each axis.

Step 2: 底座

底座主要是起支撑作用，机床底座上装有工作台、主轴箱、立柱、系统等等，底座是机床的基础。假如没有底座的存在，所有机械部件难以组装起来。同时机床也会失去稳定性，运动的轨迹也将是上下起伏的便没有加工精度可言。机床底座的材质多为灰铸铁，也有用大理石但是比较少。

It mainly plays a supporting role. The machine base is equipped with a workbench, a spindle box, a column, a system and so on. The base is the basis of the machine tool. If there is no base, it is difficult to assemble all the mechanical parts. At the same time, the machine tool will lose stability, and the track of motion will fluctuate up and down, so there is no machining accuracy. The material of machine tool base is mostly gray cast iron, and marble is also useful but less.

Step 3: 工作平台

工作平台主要用于机床加工工作平面使用，上面有孔和T型槽，用来固定工件，和清理加工时产生的铁屑。按JB/T7974-99标准制造，产品制成筋板式和箱体式，工作面采用刮研工艺，工作面上可加工V形、T型、U型槽和圆孔、长孔。有耐潮、耐腐蚀、不褪色、温度系数低等特点。

It is mainly used for machining the working plane of machine tools. There are holes and T-grooves on it, which are used to fix work pieces and clean the iron scraps produced during machining. Manufactured according to JB / t7974-99 standard, the products are made of rib plate and box type. The working face adopts scraping and grinding technology. V-shaped, T-shaped, U-shaped groove, round hole and long hole can be processed on the working face. It has the characteristics of moisture resistance, corrosion resistance, color fastness, low temperature coefficient, etc.

Step 4: 电机

步进电机是将电脉冲信号转变为角位移或线位移的开环控制元件。在非超载的情况下，电机的转速、停止的位置只取决于脉冲信号的频率和脉冲数，而不受负载变化的影响，即给电机加一个脉冲信号，电机则转过一个步距角。这一线性关系的存在，加上步进电机只有周期性的误差而无累积误差等特点。使得在速度、位置等控制领域用步进电机来控制变的非常的简单。

Stepping motor is an open-loop control element which transforms electric pulse signal into angular displacement or linear displacement. In the case of no overload, the speed and stop position of the motor only depend on the frequency and number of pulses of the pulse signal, and are not affected by the load change. That is to say, add a pulse signal to the motor, and the motor will turn a step angle. The existence of this linear relationship, coupled with the stepper motor only periodic error and no cumulative error and so on. It makes it very simple to use stepping motor to control speed, position and other control fields.