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What Exactly Is CNC?

Jan. 02, 2020

China CNC drilling machine manufacturer understands exactly what CNC is. This is a very basic knowledge. Although you understand it, you may not have seen such a systematic summary, including CNC machine tools. Composition, technology chain, product chain, downstream industry chain.

Angles Notching Machine

Angles Notching Machine

Numerical control (abbreviation: NC) technology refers to a technology that uses digital instructions composed of numbers, characters, and symbols to control the motion of one or more mechanical devices. Numerical control generally uses a general-purpose or special-purpose computer to implement digital program control. Therefore, numerical control is also called computer numerical control, referred to as CNC, and it is generally called CNC in foreign countries.

Control unit of CNC machine tools: The operation and monitoring of CNC machine tools are all done in this CNC unit, which is the brain of CNC machine tools. Compared with ordinary machine tools, CNC machine tools have the following characteristics: high machining accuracy and stable machining quality; multi-coordinate linkage can be used to process complex shaped parts; when machining parts are changed, generally only the CNC program needs to be changed, which can save Production preparation time; the machine tool itself has high precision and rigidity, which can choose favorable processing dosage and high productivity (generally 3 to 5 times of ordinary machine tools); high degree of machine tool automation can reduce labor intensity; requirements for the quality of operators Higher, the technical requirements for maintenance personnel are higher.

In terms of composition, CNC machine tools are mainly divided into three parts: machine tool body, transmission system and CNC system.

The main body of the machine tool is the main component of the machine tool, and it is also the hardware of the machine tool. It is an important mechanical accessory part of the machine tool. It is also the part most easily seen by the naked eye. Lubrication, chip removal and cooling.

The transmission system is an important "vein" of CNC machine tools. It leads the orderly execution of all parts of the machine tool and completes the work mission of the machine tool. He includes tools, transmission machinery and auxiliary power systems. (1) As far as the cutter part is concerned, including protection devices, tool magazines and tool changing devices; (2) as the second major component of the transmission system-transmission machinery includes ball screw, linear guide and worm pair; 3) The auxiliary power system includes two parts, the hydraulic system and the starting system. These two parts are the power of the CNC machine tool.

CNC system can be said to be the soul of CNC machine tools, but also the most sensitive part of the entire machine tool. It is the machine tool to complete various functions and the essence of the operation. The numerical control system is basically divided into two categories: (1) drive devices, which include high-speed spindles, torque motors, linear motors, ordinary motors and stepper motors; (2) control and detection devices, including CNC systems, programmable controllers, Feed servo control module, position detection module, etc.

The technical chain of CNC machine tools consists of six parts. In summary, it includes real-time nuclear technology of CNC system, direct drive motor processing control technology, servo motor processing control technology, linear sensor resolution technology, angle sensor resolution technology, and numerical control. System fieldbus technology, etc.

The CNC machine tool product chain is relatively long compared to several other links. Generally speaking, it includes machining centers, metal cutting, special processing, forming processing and other parts.

Machining center: multi-axis linkage and flexible machining unit;

Metal cutting: CNC lathes, CNC milling machines, CNC boring machines, CNC drilling machines, CNC grinders, CNC punches; Special processing: EDM wire cutting machine, EDM forming machine, flame cutting machine, laser processing machine, high pressure water cutting machine, CNC automatic Welding equipment; forming machine tools: CNC presses, CNC shears, CNC bending machines, CNC pipe bending machines, multi-coordinate measuring machines; others: automatic drawing machines, industrial robots and special CNC systems.

The downstream industry chain of CNC machine tools reflects the full role of CNC machine tools as "master machines" and is widely used in various industries in the manufacturing industry. Generally speaking, it includes the following aspects:

National defense industry: aerospace, nuclear industry, shipbuilding industry, weapon manufacturing; petrochemical industry; petroleum, petrochemical, chemical industry, etc .; shipbuilding industry: shipbuilding and shipbuilding related; machinery industry: machinery manufacturing, etc .; automobile industry: body processing, cylinder Body processing, transmission, clutch, shaft parts, etc .; other industrial manufacturing related fields.

Our company provides various CNC equipments such as angles notching machine and flange welding machine. if you have any questions about our products, please feel free to contact us.

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