At present, under the situation of the rapid growth of CNC machining in the domestic manufacturing industry, there is a serious shortage of CNC programming technology talents. CNC programming technology has become a hot spot in the job market.
First, learning the numerical control programming technology needs to have the following basic conditions:
(1) Have the basic ability to learn, that is, the students have certain learning ability and preparatory knowledge.
(2) Conditionally accept good training, including selecting good training institutions and training materials.
(3) Accumulate experience in practice.
Second, learn CNC programming technology, requiring students to first master certain preliminary knowledge and skills, including:
(1) Basic geometric knowledge (above high school) and mechanical drawing basis.
(2) Basic English.
(3) Common knowledge of machining.
(4) Basic three-dimensional modeling skills.
Third, the factors that should be considered when selecting training materials include:
(1) The content of the textbook should be suitable for the requirements of practical programming applications. The interactive graphics programming technology based on CAD/CAM software, which is widely used at present, is the main content. While teaching practical techniques such as software operation and programming methods, it should also contain certain basic knowledge, so that readers know more about it.
(2) The structure of the textbook. The learning of NC programming technology is a process of continuous improvement in stages, so the content of the textbook should be reasonably distributed according to different learning stages. At the same time, the content is systematically summarized and classified from the perspective of application, so that the reader can understand and remember the whole.
Fourth, the learning content and learning process of NC programming can be summarized into three stages:
Phase 1: Basic knowledge learning, including basic knowledge of CNC machining principles, numerical control procedures, and CNC machining processes.
Phase 2: Learning of NC programming technology, based on a preliminary understanding of manual programming, focus on interactive graphics programming technology based on CAD/CAM software.
Phase 3: Numerical control programming and machining exercises, including a number of actual product CNC programming exercises and actual machining exercises.
Fifth, learning methods and skills
As with other knowledge and skills, mastering the correct learning method plays an important role in improving the learning efficiency and quality of CNC programming technology. Here are a few suggestions:
(1) Concentrate on the fight against annihilation, concentrate on completing a learning goal in a short period of time, and apply it in time to avoid marathon learning.
(2) Reasonable classification of software functions, which not only improves memory efficiency, but also helps to grasp the application of software functions as a whole.
(3) From the very beginning, it is more important to cultivate standardized operating habits and cultivate rigorous and meticulous work styles. This is often more important than simply learning technology.
(4) Record the problems, mistakes and learning points that are usually encountered. This process of accumulation is a process of continuous improvement.
How to learn CAM
The learning of interactive graphical programming techniques (also known as the main points of CAM programming) can be divided into three areas:
1. Learning CAD/CAM software should focus on the core functions of learning, because the application of CAD/CAM software also conforms to the so-called "20/80 principle", that is, 80% of applications only need to use 20% of its functions.
2. It is to cultivate standardized and standardized work habits. For the common machining process, standardized parameter settings should be made, and standard parameter templates should be formed. These standard parameter templates should be used directly in the numerical control programming of various products to reduce the operation complexity and improve the reliability.
3, is the accumulation of experience in the processing technology, familiar with the characteristics of the CNC machine tools, tools, processing materials used in order to make the process parameters set more reasonable.
It is important to point out that practical experience is an important part of CNC programming technology and can only be obtained through actual processing. This is impossible to replace any CNC machining training materials. Although this book fully emphasizes the combination with practice, it should be said that changes in process factors produced in different processing environments are difficult to express in writing.
Finally, as with other technologies, to "strategically despise the enemy and tactically value the enemy", it is necessary to establish a firm confidence in the completion of learning objectives, while at the same time down-to-earth treatment of each learning session.
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