CNC machining technology, introduction to CNC machining

Numerical control technology. In recent years, with the development of computer technology, digital control technology has been widely used in various fields of industrial control, especially in the machinery manufacturing industry, ordinary machinery is gradually being replaced by high-efficiency, high-precision, high-automation CNC machinery. At present, the numerical control rate of foreign machinery and equipment has reached more than 85%, and the numerical control rate of China's machinery and equipment is less than 20%, with the application of new technologies in China's mechanism industry, China's world manufacturing processing center status is formed, the use of CNC machine tools, repair, maintenance personnel are very scarce in various industrial cities in the country, plus CNC machining personnel are very wide, can be in the modern manufacturing industry of molds, watch industry, hardware industry, small and medium-sized manufacturing industry, engaged in the corresponding companies and enterprises computer graphics, CNC programming design, machining center operation, mold design and manufacturing, EDM and wire cutting work, so the existing CNC technical personnel can not meet the needs of the manufacturing industry, and the talent market in this kind of talent reserve is not large, enterprises to find the right talent in the talent market is more difficult, so that the mold design, CAD cam engineer, CNC programming, CNC machining, etc. have become one of the most frequent recruitment positions in China's talent market.

In various job fairs, CNC professionals are one of the few positions that enterprises are keen to mark with words such as "urgent hiring" and "high-salary recruitment", so that there is a phenomenon of "it is difficult to hire CNC technicians with a monthly salary of 6,000 yuan" and "CNC technicians cannot be recruited with an annual salary of 160,000 yuan". It has been reported that China's senior technicians are facing a serious situation of "lack of success", the original technicians are old, the middle-aged technicians are few, and the young technicians are not yet mature. According to statistics, at present, among the skilled workers in China, senior technicians account for 35%, and junior workers account for 60%.

Among the skilled workers in developed countries, 35% are senior workers, 50% are intermediate workers, and 15% are junior workers. This shows that there will still be a large talent gap for our senior technicians in the next 5-10 years. Boom Sea wishes you good luck.

With the adjustment of industrial layout and product structure, the employment structure will also change. The demand for higher-level first-line applied talents will increase significantly. With the help of foreign development experience, when entering the period of industrial layout and product structure adjustment, it has become an urgent requirement to match the industrial structure and cultivate a considerable number of professional talents with a high level of education.

For CNC machining majors, practitioners are not only required to have excellent practical ability, but also to master systematic and solid machining theoretical knowledge. Therefore, CNC machining talents with both academic qualifications and strong operating ability have become the most urgently needed talents in the society and enterprises.

Boom Sea wishes you good luck.

CNC machining technology, ordinary fitter, ordinary lathe worker, these two can generally be learned well in one year. But it's not very good, it's just good at learning. But to go to the general place 2000+ salary is always there, I think your good standard is this, I don't know how many years to learn these things.

And the mold is also made with CNC lathes and machining centers. I suggest you go and learn CNC machining technology. Because this one is quick to get started.

There must be a salary of more than 2000+ in half a year. After learning, I feel that 2000+ is low, and you can transfer to the school in the future, and it will be much easier for you to learn at that timeIn this way, you can learn two things at once

That's all there is to it for a year.

General fitter, ordinary lathe, milling and grinder, riveting and welding, industrial electrician, electrical welding.

CNC machining technology 1 year entry.

Electrical automation depends on the specific direction.

Mold design and manufacturing 2 years.

CNC technology for more than 3 years.

Summary. Hello, numerical control technology is the use of digital information to control the mechanical movement and work process of the technology, it is a set of traditional machinery manufacturing technology, computer technology, modern control technology, sensing and detection technology, network communication technology and opto-electromechanical technology equal to one of the basic technology of modern manufacturing, with high precision, high efficiency, flexible automation and other characteristics, to the manufacturing industry to achieve flexible automation, integration and intelligence plays a pivotal role.

Numerical control technology. Hello, numerical control technology is the use of digital information on the mechanical movement and work process to control the technology, it is a set of traditional mechanical manufacturing technology, computer technology, modern control technology, sensing and detection technology, network communication and information technology and opto-mechanical technology equal to one of the basic technology of modern manufacturing, with high precision, high efficiency, flexible automation and other characteristics, to achieve flexible automation, integration and wisdom of the manufacturing industry plays a pivotal role.

After graduation, CNC technology students are mainly engaged in high-end equipment manufacturing industries such as power generation equipment manufacturing, military industry, aerospace industry, ship source manufacturing, data equipment manufacturing, etc., and are engaged in CNC machine tool operation, data processing program preparation, data processing technology preparation, product quality inspection, on-site management, production scheduling, CNC equipment sales and after-sales service and other work.

CNC machining specializes in production management, mechanical product design, CNC programming and processing operation, CNC equipment installation, commissioning and operation, CNC lead backup fault diagnosis and maintenance, transformation and after-sales service. The demand for CNC technical talents.

The size of the demand for CNC technical talents and the type, level and quality of talent demand depend on the development degree of the national economy and manufacturing industry, and also depend on the management requirements and development trends of the employer itself. According to statistics, the manufacturing industry is more developed in Germany, the United States, Japan and other countries CNC machine tools account for more than 70% of the production equipment, China's manufacturing industry and the international advanced industrial countries compared with a big gap, according to the machinery association statistics, China's manufacturing CNC machine tools have less than 2% of the total, and in recent years are growing at a rate of more than 35%, for China's existing limited number of CNC machine tools have not been fully utilized. Although there are many reasons, the lack of CNC talents is undoubtedly one of the main reasons.

Dear, I am glad to answer for you: CNC programming technology A: Dear 1, manual programming All the work of manual programming (including numerical calculation through computer aid) is manual programming.

For parts with simple geometric shapes, the numerical calculation is simpler, the program segments are smaller, and it is easier to complete by manual programming, and it is economical and timely. For this reason, manual programming is still widely used in point machining and contour machining consisting of straight lines and arcs. However, for parts with complex shapes, especially parts with non-circular curves, list curves or surfaces, it is difficult to program them by hand, and the possibility of errors increases, the efficiency is low, and sometimes even the program cannot be programmed.

Therefore, it is necessary to program in an automated programming way. 2. Automatic programming Automatic programming is also known as computer-aided programming, that is, most or all of the programming work is completed by the computer. For example, to complete the calculation of coordinate values, write part processing program sheets, automatically output and print processing program sheets, and prepare control media.

The active programming method reduces the labor intensity of programmers, shortens the programming time, improves the programming quality, and solves the programming problems of many complex parts that cannot be solved by manual programming. The more complex the surface shape of the workpiece and the more cumbersome the process, the more obvious the advantages of automatic programming. Thank you for your patience.

The above is my full reply, if you are satisfied with my service, please give a thumbs up, and I wish you all the best! Peace and joy!

—, fill in the blanks. 1. The machining accuracy of CNC machine tools depends on the (positioning) accuracy and (repeated positioning) accuracy and ( ).

7. FMS is the abbreviation of (Flexible Manufacturing System); FMC is an abbreviation for (Flexible Manufacturing Unit); CIMS is (Computer Integrated Manufacturing, —).

Judgment. 1, the CNC programming content contains the processing technology of the parts (right) 2, the CNC machine tool is to combine the CNC device and the ordinary machine tool (right) 3, when the equidistant method is used to fit the non-circular curve, the shorter the straight line segment, the smaller the fitting error (4, the CNC machining program can not contain sub-programs (wrong).

5, the control accuracy of the closed-loop servo system mainly depends on the detection accuracy of the detection element (right) 6, the machining accuracy of the CNC machine tool has nothing to do with the selected tool (wrong) 7, the fitting accuracy of the short arc fitting non-circular curve is higher than that of the straight line fitting non-circular curve (8, the multi-processor CNC system is more efficient than the single-processor CNC system but the speed is low (9, the cutting speed is the cutting speed (10, the CNC lathe must have the spindle quasi-stop function (wrong) - short-answer question.

2. What is the difference between the full closed-loop CNC machine tool and the semi-closed-loop CNC machine tool in the servo system?

The position of the position detection device.

5. What is the starting point? How to choose the starting point when CNC programming?

Tool alignment point 6 What are the most important measures to prevent crawling?

It can also be prevented from the process side, such as the knife line, etc., which will also have their own uncertainties.

Question 3: X-axis and z-axis.

The fourth question is open-loop and semi-closed loop and full closed loop.