Plastic mold is a kind of combined plastic mold which is used for pressure molding, extrusion molding, injection molding, blow molding and low foaming molding. In mold manufacturing, there is a high demand for precision. NC machining technology is an advanced technology in the field of mechanical manufacturing.

数控加工与传统加工之间的主要区别，就是能够利用数字化信息，对零件、刀具的位置和位移加以控制，进而提高加工精确度。在模具制造中，利用数控加工技术，可以提高加工精度，保证加工质量。在塑料模具程序编制中应用到的数控加工工艺的主要内容如下。

The main difference between NC machining and traditional machining is that the position and displacement of parts and tools can be controlled by using digital information, so as to improve the machining accuracy. In the mold manufacturing, the use of numerical control processing technology can improve the processing accuracy and ensure the processing quality. In the plastic mold programming, the main contents of NC machining technology applied are as follows.

1.选择适合在塑料模具数控机床上加工的零件或工序内容。

1. Select the parts or process content suitable for processing on the plastic mold CNC machine tool.

2.对塑料模具零件进行数控加工工艺性分析。

2. Analyze the NC processing technology of plastic mold parts.

3.制定工艺路线，包括工序划分、加工顺序的安排、基准选择，以及与非数控加工工序的衔接等。

3. Formulate process route, including process division, processing sequence arrangement, benchmark selection, and connection with non NC machining process.

 

4.设计数控加工工序，主要包括确定工步、选择刀具、定位与安装夹具、确定走刀路线、确定切削用量等。

4. Design the NC machining process, mainly including the determination of working steps, selection of tools, positioning and installation of fixtures, determination of tool path, determination of cutting parameters, etc.

5.调整数控加工工序程序，如增加对刀和刀具补偿等。容差分配。

5. Adjust the NC process program, such as adding tool setting and tool compensation. Tolerance allocation.

6.数控机床上部分指令的塑料模具处理。

6. Plastic mold processing of some instructions on CNC machine tools.

模具制造通常具有结构复杂的特性，因而对于各类数据、精度等都有很高要求。采用传统的模具制造技术，人为影响因素较多，加工精度难以得到保证。同时不同类型的模具结构特点不同，因而对模具制造也有不同要求。随着技术的发展进步，在模具制造中，应用数控加工技术，能有效提高模具的精度和质量，同时让整个模具制造行业得到更加丰富多样的发展。在模具加工中，有较多不同的情况，通过数控加工技术的应用，可以更好地应对各种工况，对于模具制造很有帮助，能够更好地满足模具制造业的发展需求。应用数控加工技术，能提高模具制造过程中的科学性，推动模具制造的进一步发展

Mold manufacturing usually has the characteristics of complex structure, so it has high requirements for all kinds of data and precision. Using the traditional mold manufacturing technology, there are many artificial factors, so it is difficult to guarantee the machining accuracy. At the same time, different types of mold structure characteristics are different, so there are different requirements for mold manufacturing. With the development and progress of technology, in the mold manufacturing, the application of numerical control processing technology can effectively improve the accuracy and quality of the mold, and make the whole mold manufacturing industry get more diversified development. In the mold processing, there are many different situations. Through the application of NC processing technology, we can better deal with various working conditions, which is very helpful for mold manufacturing and can better meet the development needs of mold manufacturing industry. The application of numerical control machining technology can improve the scientificity of the mold manufacturing process and promote the further development of the mold manufacturing