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.
Teachers! Did you use this instructable in your classroom?
Add a Teacher Note to share how you incorporated it into your lesson.
Step 1: X轴、Y轴、Z轴
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
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
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
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.
Step 5: Z轴支撑
Z-axis support frame, supporting z-axis, fixing
Step 6: 固定
Fix the spindle and z-axis together
Step 7: X轴传动机构
X-axis transmission mechanism