About CNC machine tools, it is very professional, what is the specialty of CNC machine tools

After graduating, I found out that the exam questions in the school were very rigid, and some of them were even imprisoning people's minds!! Take the first question as an example, in the past, or the servo system of most machining centers is used to control the movement of each axis, but the spindle of the turning center is also controlled by the servo system, and now some machine tools are also replaced by the servo system, this thing is not so absolute, such a question should be used as a question and answer question, or thinking question, there are 11 questions, there is no point at all!!

1b 2a 3b 4b 5a 6d 7c 8d 9a 10a 11a 12d

Note: 12 questions, in the international standard, G90 refers to absolute size programming. It is not excluded that the G90, which does not adopt international standards, has a specific meaning. For example, G90 refers to the outer circle coarse cut cycle, X and Z refer to the absolute coordinates, and U and W refer to the relative programming size.

1b 2a 3b 4b 5a 6d 7c 8d 9a 10a 11a 12d

Question 3: If it is a full closed loop, choose B, if it is a semi-closed loop, choose A

There is also a second question that is the resolution of the numerical control system.

After selecting the z-axis in the fifth question, use the right-handed coordinate system to determine the x-axis and y-axis.

Hehe, maybe mine isn't necessarily right. I haven't touched it for a long time, and I've forgotten a lot. I'll give it a try and give you a reference.

Didn't you stump these questions with exams?

775790025 looking for me, I can help you, I will definitely help.

1,b/2,d/3,b/4,?/5,a/6,d/7,c/8,d/9,a/10,a/11,a/12,d

Who still uses the apt programming language now, these scholars do not change the textbook.

Grass, what are you doing? 5 points? 500 won't teach you either. Half-tie.

CNC machines are:Mechanical Engineering

Numerical control technology. It mainly studies the basic knowledge and professional skills of CNC principles and the application of CNC machine tools, CNC machining technology, maintenance of CNC machine tools, etc., and carries out equipment operation, programming, and process implementation in the field of CNC technology.

Those that are electrically biased have digital circuits.

Analog circuits, microcontroller principles and interfaces and applications, C programming, VF, VB programming, computer network technology.

CNC system, CNC machining and high-balance technology, CNC programming, automatic Danian pure control theory, hydraulic transmission rolling and pneumatic transmission, etc.

Employment prospects

This is a major that has emerged in recent years, there are few undergraduate sections at present, and they are basically senior junior colleges, this major is currently out of the machining workers, the current lack of this kind of workers, all say that learning CNC is very popular, but the actual income is very little, about the salary is below 1500, there is no development and prospect.

The work is very tired and dirty, sometimes you have to work in the factory shifts, many people who learn CNC have regretted it, because some technical schools under the banner of package distribution are recruiting students in this way, and they go out to do the lowest level of work, so don't go to junior college, technical secondary school, technical school or something to learn, can't learn real skills, come out and do the lowest workers, there is really no future, if so, it is better to choose other majors, after all, the factory is still a place for high-risk operations.

This major is still very good, so let's introduce what I learned from a friend.

The CNC technology major cultivates technical application talents who master the basic knowledge and basic theory of CNC technology application, have the ability to program and operate CNC machine tools, engage in modern production organization and management of CNC machining technology, and develop morally, intellectually and physically.

Graduates of this major are mainly engaged in the operation of CNC production lines, the programming of CNC machining, process implementation, installation and commissioning, maintenance management, and technical services of CNC products in various machinery manufacturing enterprises.

CNC technology is a set of mechanical, electrical, hydraulic, optical, computer, automatic control technology as one of the knowledge-intensive technology, it is the manufacturing industry to achieve modernization, flexibility, integrated production basis, but also to improve product quality, improve productivity of the indispensable material means. Japan, the United States, Germany and other industrially developed countries using numerical control technology to obtain economic benefits roughly as follows: operators reduced by 50, cost reduced by 60, machine tool utilization rate of 60-80, the number of machine tools reduced by 50, production area reduced by 40.

Due to the wide application of CNC technology in the world's manufacturing industry, ordinary machinery is gradually replaced by high-efficiency and high-precision CNC equipment.

The wide application of numerical control technology in the machinery manufacturing industry has become a powerful driving force for the development of the national economy. After joining the WTO, with the rapid development of the economy, China is gradually becoming the "world manufacturing center", and the numerical control rate has become one of the important indicators to measure the manufacturing technology level and economic strength of a country or enterprise (numerical control rate: the proportion of CNC equipment in the number of equipment owned).

At present, the numerical control rate of machine tools in China is only, while Japan is as high as 30, and the United States is more than 40. CNC machine tools have been widely used in developed countries, and the application and promotion of CNC technology in China is far behind that of developed countries. China will increase 40-500,000 CNC machine tools in a few years, and 60-800,000 CNC professional and technical personnel will be needed accordingly.

What is the CNC machine tool major? CNC machine tools belong to automated operations, which is a relatively advanced specialty in the machining industry. It relies on digital control of all the movements of the machine tool to process the mechanical parts that meet the design standards.

It's a promising business. However, the cultural quality of the operator is required to be higher, and it is not easy to get started, in addition to having a high level of machining technology, and it is required to have a certain foundation in mathematics, computer language, programming, etc.

How about the employment of CNC machine tool majors?

However, with the society'Development, more and more people are reluctant to engage in mechanical work, and most of the talents are lost to service, finance, and education. This has also led to a shortage of mechanical talents.

It is understood that the annual salary of 280,000 yuan in Kunshan City, Jiangsu Province is difficult to hire senior welders, the monthly salary of 6,000 yuan in Hangzhou, Zhejiang Province cannot recruit qualified CNC machine tool operators, and the monthly salary of 5,000 yuan in Tangshan, Hebei Province recruits senior welders but no one applies for ......

Looking at the shortage of talents in Beijing in the past 7 years, it can be found that most of the graduates of mechanical majors are still "hot" in the talent market. In recent years, the country has increased its efforts to strengthen the equipment manufacturing industry, in view of the importance of the machinery industry and the huge scale of the need for a large team of professionals, in the future for a period of time, the society will still have a greater demand for mechanical talents.

Judging from the current development of the machinery industry, the prospects for printing machinery, CNC machine tools, power generation equipment, construction machinery and other important products are still optimistic. In addition to these traditional industrial fields, the industry will further develop towards the integration of mechanical and optoelectronic products, and expand to emerging fields such as optical processing and environmental protection.

Which colleges and universities can refer to CNC machine tool majors?

Tsinghua University, Huazhong University of Science and Technology, Harbin Institute of Technology, and Zhejiang University are among the top universities in China in terms of CNC and automation. However, I believe that although the university environment has a great impact on people, the most important thing to learn more in university is to rely on one's own control and learning ability.

In the "ivory tower" of the university, how many people do nothing until they graduate to know what they have nothing? How many people stick to themselves and never forget their original intentions, from the beginning of the nestling to the end of the wings to soar? The only thing that can change you is yourself, so even if you choose what everyone thinks is an unpopular major, as long as you keep studying, you can turn it into a popular major.

Machine tool CNC is a kind of engineering technology major, which mainly studies machine tool manufacturing and CNC technology, as well as the application of mechatronics technology. It involves many fields including machine tool design, processing, manufacturing, maintenance, mold manufacturing and so on.

The main goal of the CNC major of machine tools is to train technical talents, they should have solid professional knowledge of mechanical machine tools and CNC machining, master mechatronics technology, and be able to apply software and hardware tools such as computers and CAD CAM to design machine tool processing schemes, and realize the digitalization, simulation and informatization of the process. At the same time, they should also have strong teamwork and communication skills, and be able to undertake the work of machinery manufacturing, automatic teasing shed production line, mold manufacturing and production management.

In the CNC major of machine tools, the main courses include mechanical design, mechanical manufacturing, numerical control technology, automation control and computer-aided design. Students also need to carry out machine tool processing, CNC programming training and internship, so as to combine theoretical knowledge with practical operation and cultivate students' practical operation ability.

The development prospect of machine tool CNC major is broad. With the development of the machinery industry and manufacturing industry, a large number of machine tool processing and CNC machining technical talents are needed. Graduates can be engaged in the design, manufacture, installation, maintenance and management of machine tool CNC technology and automated production lines in various fields such as 1040, aircraft, machinery, electronics, aerospace and so on.

In short, the CNC major of machine tools is a major full of prospects and development opportunities. In this industry, students can accumulate a wealth of theoretical knowledge and practical experience, and leading skills and technologies will become the core competitiveness of future industry development. <>

1. CNC lathe is one of the most widely used CNC machine tools. It is mainly used for the cutting of the inner and outer cylindrical surfaces of shaft parts or disc parts, the inner and outer conical surfaces of arbitrary taper angles, the internal and external curved surfaces of complex rotation, cylindrical and conical threads, and can be grooving, drilling, reaming, reaming and boring.

2. The CNC machine tool automatically processes the processed parts according to the pre-prepared processing program. We compile the processing process route, process parameters, movement trajectory, displacement, cutting parameters and auxiliary functions of the parts into a processing program sheet in accordance with the instructions and program formats specified by the CNC machine tool, and then record the content of the program sheet on the control medium, and then input it into the CNC device of the CNC machine tool, so as to command the machine tool to process the parts.