What does virtual currency CNC mean

1. CNC (numerical control machine tool) is the abbreviation of computer number control machine tool. It is an automatic machine tool with program control system. The control system can logically process and decode the program with control code or other symbolic instructions, so that the machine can move and process parts

related links:

the control unit of NC machine tool

the operation and monitoring of NC machine tool are all completed in this NC unit, which is the brain of NC machine tool< Compared with ordinary machine tools, CNC machine tools have the following characteristics:

● high machining accuracy and stable machining quality

● it can carry out multi coordinate linkage and process complex parts

● when machining parts are changed, generally only the NC program needs to be changed, which can save proction preparation time

● the machine tool itself has high precision and rigidity, and can choose favorable processing amount, with high proctivity (generally 3-5 times of that of ordinary machine tool)

● the machine tool has a high degree of automation, which can rece the labor intensity

● it requires higher quality of operators and higher technical requirements of maintenance personnel< In general, CNC machine tools are composed of the following parts:

● host, which is the theme of CNC machine tools, including machine body, column, spindle, feed mechanism and other mechanical parts. It is used to complete all kinds of cutting machine parts

● the numerical control device is the core of the numerical control machine tool, including hardware (printed circuit board, CRT display, key box, tape reader, etc.) and corresponding software, which is used to input digital part program, complete input information storage, data transformation, interpolation operation and realize various control functions

● driving device, which is the driving component of CNC machine tool actuator, including spindle driving unit, feed unit, spindle motor and feed motor. Under the control of the numerical control device, he realizes the spindle and feed drive through the electric or electro-hydraulic servo system. When several feed linkage, can complete the positioning, straight line, plane curve and space curve processing

● auxiliary device, some necessary supporting parts of index control machine tool, to ensure the operation of CNC machine tool, such as cooling, chip removal, lubrication, lighting, monitoring, etc. It includes hydraulic and pneumatic device, chip removal device, exchange table, numerical control turntable, numerical control dividing head, cutting tool, monitoring and detection device, etc

● programming and other auxiliary equipment can be used to program and store parts outside the machine< Since MIT developed the first CNC machine tool in the world in 1952, CNC machine tools have been widely used in manufacturing instry, especially in automobile, aerospace and military instry, and CNC technology has developed rapidly both in hardware and software<

machining center

machining center is a highly automatic multi-function CNC machine tool with tool magazine and automatic tool changing device. After the workpiece is clamped on the machining center once, it can complete a variety of processes for more than two surfaces, and has a variety of tool changing or tool selection functions, so that the proction efficiency is greatly improved

machining centers can be divided into boring milling and turning according to their processing proceres, and can be divided into three axis, four axis and five axis machining centers according to the number of control axes

+ + +

CNC

the enterprise logo of China Netcom Group (hereinafter referred to as "China Netcom Group") is composed of two parts: text and graphics, which has distinctive characteristics of the times and Instry. Two interactive English letter "C" in the logo forms a virtual "n", It is not only the abbreviation of China Netcom, but also the freehand form of Chinese "net", which vividly transforms the characteristics of communication and interaction in the telecommunications instry into a visual image; Its circular outline symbolizes the globalization trend of China Netcom's delegation to China. The ingenious combination of blue background and green letters implies the profound implication of science and technology and the future; Chinese font with appropriate tilt angle, effectively convey the enterprising spirit of enterprise

with unique artistic beauty and symbolic significance, the logo is an organic whole full of vitality. It brings together the characteristics of the original logos of 10 provinces (autonomous regions and municipalities) in the north of China Telecom, China Network Communication (holding) Co., Ltd. and Jitong Communication Co., Ltd, It vividly outlines the internal quality of China Netcom Group's integration of all positive factors and excellent resources, and reflects the confidence and determination of China Netcom Group as a super large state-owned telecom enterprise to lead all employees to work together<

win the market by competition and cooperation

"win the market by competition and cooperation" is the strategic positioning of China Netcom Group to participate in the telecom market competition and cooperation with a new attitude. We will seek cooperation in competition with major telecom operators at home and abroad and relevant social parties, orderly competition in cooperation, actively promote equal involvement in technical means, do a good job in interconnection, and achieve win-win results<

integrated creative power

"integrated creative power" is the premise and foundation of the reform and development of China Netcom Group, and also the need of the corporate culture construction of China Netcom Group at the present stage. Every employee of China Netcom Group will adhere to the creed of "integration of creative power", quickly form the cohesion of China Netcom, and lay a solid foundation for the sustainable and healthy development of China Netcom Group<

honesty creates brand

"honesty" is the cornerstone of socialist market economy, the foundation of China Netcom Group's famous brand, and the most solemn and solemn commitment of China Netcom Group to the society and users. China Netcom Group will win the real trust and long-term cooperation of customers and partners, give full play to the brand effect, and fully reflect the unity of economic and social benefits

Service weaves the future

"service weaves the future" is the concrete embodiment of China Netcom Group's economic strategy and the basic means to participate in the future market competition. Providing high-quality service is the starting point and foothold of China Netcom Group's business strategy, and user satisfaction is the highest evaluation of China Netcom Group. China Netcom Group will show a new service image to the society and win the initiative in the market competition

"competition and cooperation to win the market, integration of creative power, integrity to build the brand, service to weave the future" interact with each other, complement each other, and have an internal inevitable connection, which is a more systematic concept system. At the same time, it will lead all the staff of China Netcom Group to live up to the trust of the party and the people, unite and make progress, work hard and accomplish the mission entrusted by history

I don't know why you put it in the category of outdoor sports!

2.

CNC machine tools

Numerical control machine tool is the abbreviation of computer numerical control machine tools, which is an automatic machine tool with program control system

the control system can logically process the program with control code or other symbolic instructions, decode it, express it with coded numbers, and input it into the numerical control device through the information carrier. After calculation and processing, the numerical control device sends out various control signals to control the action of the machine tool, and automatically processes the parts according to the shape and size required by the drawing

It is a flexible and efficient automatic machine tool, which represents the development direction of modern machine tool control technology and is a typical mechatronics proct

extended data:

technology application:

CNC machine tool is an automatic machine tool with program control system, which can make the machine move and process parts according to the programmed program

it integrates the latest technology of machinery, automation, computer, measurement, microelectronics, and uses a variety of sensors. The sensors used in CNC machine tools mainly include photoelectric encoder, linear grating, proximity switch, temperature sensor and Hall sensor

current sensor, voltage sensor, pressure sensor, liquid level sensor, resolver, inctosyn and speed sensor are mainly used to detect position, linear displacement and angular displacement, speed, pressure and temperature

3.

CNC is an automatic machine tool with program control system. The control system can logically process and decode the program with control code or other symbolic instructions, so that the machine can move and process parts. The English abbreviation of CNC is the abbreviation of computerized numerical control, also known as CNC machine tools, CNC lathes, Hong Kong and Guangdong Pearl River Delta area known as the computer gong

it is mainly used for large-scale processing parts, and its processing methods include turning the outer circle, boring, turning the plane and so on. It is suitable for mass proction and has a high degree of automation in the proction process

since MIT developed the first CNC machine tool in the world in 1952, CNC machine tools have been widely used in manufacturing instry, especially in automobile, aerospace and military instry, and CNC technology has developed rapidly in both hardware and software

extended data:

advantages and disadvantages of CNC:

1. Greatly rece the number of tooling, and complex tooling is not needed to process complex parts. If we want to change the shape and size of the parts, we only need to modify the processing program of the parts, which is suitable for the development and modification of new procts

The machining quality is stable, the machining precision is high and the repetition precision is high, which can meet the machining requirements of aircraft

It can rece the time of proction preparation, machine adjustment and process inspection, and rece the cutting time e to the use of the best cutting quantity

It can process complex surface which is difficult to be processed by conventional methods, even some parts which can not be observed

4. Computer digital control machine tool is a kind of automatic machine tool with program control system. The control system can logically process and decode the program with control code or other symbolic instructions, so that the machine can move and process parts. English abbreviation CNC, also known as CNC machine tools, CNC lathes, Hong Kong and Guangdong Pearl River Delta area known as computer gongs. CNC, also known as computer gongs, cncch or CNC machine tools, is actually a kind of name in Hong Kong. Later it was introced into the Pearl River Delta in mainland China, which is actually CNC milling machine. In Guangzhou, Jiangsu, Zhejiang and Shanghai, it is called & quot; CNC machining center;. General CNC machining usually refers to precision machining, CNC lathe, CNC milling machine, CNC boring and milling machine, etc

CNC (China Xinhua News Network Co. Ltd), or China Xinhua News television network, is a technology leading international communication platform approved by the CPC Central Committee and sponsored by Xinhua news agency, which is mainly composed of television networks, various new media terminals and accounts, It is an important part of the national project of strengthening international communication capacity determined by the Party Central Committee. Its English and Chinese video signals have covered about 200 countries and regions

brands of some procts

< / UL >

for reference only, satisfied with the adoption

6.

CNC is a computer numerical control machine tool. Also known as CNC machine tools, CNC lathes, Hong Kong and Guangdong Pearl River Delta area known as computer gongs

The computer digital control machine tool is a kind of automatic machine tool with program control system. The control system can logically process and decode the program with control code or other symbolic instructions, so that the machine can move and process parts

CNC lathe is mainly used for large-scale processing parts, and its processing methods include turning the outer circle, boring, turning the plane and so on. It is suitable for mass proction and has a high degree of automation in the proction process

< H2 > extended data:

compared with ordinary machine tools, CNC machine tools have the following characteristics:

1, high machining accuracy and stable machining quality

2. It can carry out multi coordinate linkage and process complex parts

3. When the machining parts are changed, generally only the NC program needs to be changed, which can save the proction preparation time

4. The machine tool itself has high precision and rigidity, and can choose favorable processing amount, with high proctivity (generally 3 ~ 5 times of that of ordinary machine tool)

5. High degree of automation of machine tool can rece labor intensity

6. It requires higher quality of operators and higher technical requirements of maintenance personnel

7. In fact, CNC has different meanings in different occasions, including the following two categories:
1) CNC, the abbreviation of computer number control, directly means computer digital control, which is a kind of processing technology widely used in the manufacturing instry at present. It can also be said that it is the symbol of the current manufacturing instry. It can easily realize multi axis machining with CNC, such as surface machining, If you leave CNC and use ordinary machine tools to process,
is almost impossible. In addition, CNC can easily realize flexible manufacturing system,
in fact, it is not difficult to learn CNC. As long as you can play mobile phones, you can use CNC,
but before learning CNC, you'd better learn the processing principle of ordinary machine tools,
there are also basic mechanical manufacturing knowledge such as drawing and tolerance, and then the effect is good.
in short, ordinary machine tools are directly controlled by people, while CNC is controlled by people through CNC
system, In order to achieve more complex and high-speed processing.

2) the enterprise logo of CNC China Netcom Group (hereinafter referred to as "China Netcom Group") is composed of two parts: text and graphics, which has distinctive characteristics of the times and instry. The two interactive English letters "C" in the logo form a virtual "n", It is not only the abbreviation of China Netcom, but also the freehand form of Chinese "net", which vividly transforms the characteristics of communication and interaction in the telecommunications instry into a visual image; Its circular outline symbolizes the globalization trend of China Netcom's delegation to China. The ingenious combination of blue background and green letters implies the profound implication of science and technology and the future; Chinese font with appropriate tilt angle, effectively convey the enterprising spirit of enterprise.

8. numerical control

9. QC QC is the abbreviation of quality control in English, which means quality control in Chinese. Its definition in iso8402:1994 is "operation technology and activities adopted to meet quality requirements"
it is the most basic requirement of quality management to ship the procts after inspection. The purpose of quality control is to eliminate the factors that cause unqualified or unsatisfactory results in all stages of the quality loop by monitoring the quality formation process. In order to meet the quality requirements and obtain economic benefits, various quality operation techniques and activities are adopted. In the field of enterprises, quality control activities are mainly the proction site management within the enterprise, which has nothing to do with whether there is a contract or not. It refers to the activities of technical measures and management measures to control and maintain the quality. Quality inspection is subordinate to quality control and an important activity of quality control
some organizations that implement ISO9000 will set up such a department or post to be responsible for the quality control functions required by ISO9000 standards. The personnel who take charge of this kind of work are called QC personnel, which are equivalent to proct inspectors in general enterprises, including IQC, IPQC and FQC
QC is mainly responsible for the inspection of finished procts, raw and auxiliary materials, and QA is a quality assurance for the whole company, including the release of finished procts, raw and auxiliary materials, and the normal operation of the quality management system. In the history of quality management, "QC" appeared first. It is the most basic requirement of quality management that the procts are inspected and then shipped. QC function is to control the proction process and analyze the process data, and provide relevant information to other departments
the old seven QC methods refer to: checklist, hierarchy method, Plato, cause and effect diagram, scatter diagram, histogram and control diagram
the implementation of the seven QC techniques shows the advanced level of the company's management to a certain extent. The success or failure of the application of these techniques will become an important aspect of the company's upgrading Market: almost all OEM customers will take the application of statistical technology as an important aspect of audit, such as TDI, Motorola, etc
QC - quality control
the operation techniques and measures adopted to meet the data quality requirements of specifications or regulations. The purpose of quality control is to eliminate the unqualified or unsatisfactory factors in all stages of the quality loop by monitoring the quality formation process. In order to meet the quality requirements and obtain economic benefits, various quality operation techniques and activities are adopted. In the field of enterprises, quality control activities are mainly the proction site management within the enterprise, which has nothing to do with whether there is a contract or not. It refers to the activities of technical measures and management measures to control and maintain the quality. Quality inspection is subordinate to quality control and an important activity of quality control
"operation technology" is the general term of control means and methods, while "activity" is the planned and organized systematic application of these operation technologies, which is a scientific quality management method. The former focuses on methods and tools, while the latter on activity process. The purpose of quality control is to give priority to prevention, manage factors and ensure results, so as to ensure that the specified requirements are met and realize economic benefits
the main function of quality control is to minimize various quality variations and fluctuations through a series of operation techniques and activities. It goes through the whole process of quality generation, formation and realization. In addition to controlling proct differences, the quality control department also participates in management decision-making activities to determine the quality level
witness point and stop point in quality control
internationally, quality control objects can set "witness point" or "stop point" according to their importance and supervision control requirements“ Both "witness point" and "stop point" are quality control points. Due to their different importance or the influence degree of their quality consequences, their operation proceres and supervision requirements are also different< The operation proceres and supervision requirements of the witness point are as follows:
(1) the construction unit shall inform the supervision engineer in writing of the time when it will arrive at the witness point for construction preparation at a certain time before arriving at the witness point, and the supervision personnel shall be invited to witness and supervise at that time
(2) after receiving the notice, the supervising engineer shall indicate the date of receiving the notice and sign on the "construction tracking file"
(3) supervisors should be present at the site at the appointed time. Supervisors shall supervise and inspect the implementation process of witness points, and make detailed records on the witness form before signing
(4) if the supervisor fails to be present at the designated time, the construction unit can consider that it has been approved by the supervision engineer and has the right to carry out the construction
(5) if the supervisor has visited the site for inspection and written relevant opinions on the "construction tracking file", the construction unit shall indicate the improvement measures or specific opinions that have been taken
stop point
stop point is a quality control point whose importance is higher than witness point. It is usually for "special process" or "special process". For the control object listed as stop point, it is required to inform the supervisor before the arrival of the specified control point to send someone to monitor the control point. If the supervisor fails to arrive at the site for supervision and inspection at the agreed time, the construction unit shall stop entering the corresponding process of the control point and wait for the supervisor according to the contract. Without approval, it is not allowed to continue activities beyond the control point. It is usually approved in writing, but it can also be approved according to the agreed authorization system
the witness point and stop point are usually defined by the contractor in the quality plan, but the construction unit shall submit the construction plan and quality to the supervision engineer for approval. If the supervision project has different opinions on the setting of witness point and stop point, the construction unit shall be informed in writing to require modification, which shall be submitted to the supervision project for approval before implementation
short for QC quality center
it is a web-based application launched by mercury interactive that supports all necessary aspects of test management. The software provides a unified and repeatable process for collecting requirements, planning and scheling tests, analyzing results, and managing defects and problems. Organizations can use the software to digitize specific quality processes and processes in a larger application life cycle. The software also supports a high level of communication and coordination among IT teams
let's understand the functions of QC:
1. Quality center helps to maintain the test project database, which covers all aspects of application functions. Each test in the project is designed to meet a specific test requirement of the application. To achieve the goals of the project, the tests in the project can be organized into specific groups. Quality center provides an intuitive and efficient method for planning and executing test sets, collecting test results, and analyzing relevant data. Quality center also has a comprehensive system for tracking application defects, through which you can
closely monitor defects from initial detection to final resolution. By linking quality center to the e-mail system, all application development, quality assurance, customer support and information system personnel can share defect tracking information
2. Quality center can integrate mercury testing tools (winrunner, QuickTest professional, QuickTest professional for mysap.com Windows client, LoadRunner and visual api-xp), as well as third-party and custom testing tools, requirements and configuration management tools. Quality center can seamlessly communicate with test tools of your choice, providing a complete solution to fully automate application testing
3. Quality center can guide you to complete the requirements specification, test plan, test execution and defect tracking phases of the test process. It integrates all the tasks involved in application testing to help ensure that customers can get the highest quality applications
in a word, I think the reasonable use of QC in testing can get twice the result with half the effort, so now some companies are using QC to manage the whole testing process. Microsoft has its own test management tool, which is more powerful than QC
- -- -- -- -- -- -- -- -- -- --
QC:
1., a barrister in other fields (translated by the Chinese mainland legal counsel, Queen of Malaysia translation, English: Queen' S counsel (QC) is the legal adviser of the British royal family. The crown counsel is not only in the United Kingdom, but also a title for senior counsel in the Commonwealth countries where the king is the head of state. Twice a year, the British royal family has the opportunity to canonize senior barristers from Commonwealth countries as Royal barristers. Royal barristers are not a class of barristers, but they will be given special treatment in court, such as wearing specially designed silk coats
2. Abbr. For Quartermaster cores army Quartermaster
QE: Quality Engineer
Quality Engineer
at present, QE can be divided into several categories according to the work content:
1. Reliability test
2. System maintenance and import
3. Process exception analysis
4. Customer complaint)
5. Making new proct analysis (QE) program and sip program,
6. Instrument calibration
7. Supplier guidance / audit (SQE) assisted improvement
8. Ecation and training
as QE, the most basic thing is to master SPC, a statistical analysis tool, and then the various performance standards of materials, the ability and experience of analyzing and solving problems.
PQE focuses on being familiar with the proct process, Analyze and solve the quality problems in the process of proct manufacturing.
MQE should be familiar with the properties, storage conditions and methods of various raw materials and semi-finished procts.
Supplier Quality Engineer skills of QE:
1: information related to customers, including:
investigation of customers and users
feedback on procts
customer requirements and contract information
data provided by service system
customer complaints
results of direct communication with customers
questionnaire and survey
commissioned data collection and analysis
feedback from concerned groups
reports from consumer organizations
reports from various media
instry research results
expectations and reviews of customer needs
customer needs and expectations are transformed into requirements
customer satisfaction survey data
customer complaint information
after sales service information
2: market analysis information includes:
market related factors, such as technology, research and development, and demand dynamics
performance of competitors
the results of level comparison activities
market evaluation and strategic research results
market opportunities, disadvantages and future competitive advantages
the actual and potential impacts of procts, processes and activities on the society (especially on the community)
market demand
feedback on procts
fault investigation activities; Market risk identification
3: unqualified report
can provide basis for summarizing experience and analyzing and improving activities. The non conformity includes the non conformity of proct realization process and supporting process
for those who have

10.

Data manipulation, computer gong, CNC,