CNC plasma cutting machine is used forcutting metal of small thickness. The advantage of processing is the high precision of the elements and the absence of waste. The economy is achieved by not having to use a set of cutting tools.
CNC plasma cutting machine works quickly forthe use of the latest design - the process of processing takes place without heating, unlike the cutting of the gas system. The technology provides for the conveyor principle of the machine, reaming up to 150 mm. The automatic arc control system provides precise positioning, detects the appearance of the smallest backlashes in the mechanics, helps to quickly change and correct the process.
The classic CNC plasma cutting machine constantly monitors a variety of parameters:
Modern CNC plasma cutting machineIt is equipped with sensitive safety systems that limit the cutting area by laser sensors. When they are triggered, all systems are shut off in a fraction of a second, preserving the health of the inexperienced operator.
Чтобы создать станок плазменной резки с ЧПУ with their own hands, it is important to understand the principle of creating an arc, take into account the capabilities of existing engines. After all, the movement of the working element must occur smoothly and evenly. Only then can guarantee the absence of sags along the edge of the cutting line.
По сути дуга получается благодаря выработке тока high frequency. He pinpoints the metal to the ground. A weak or more powerful discharge leads to a marriage. Therefore, the cutting regimes must be constantly monitored. Along with this, the conditions near the machine must meet the requirements of fire safety.
The power of the source must exceed the calculated values by a factor of at least 2. This approach allows you to leave a margin for changing modes when cutting poor-quality blanks.
For mobile processing on sale there is a machineplasma cutting with CNC-mini. The metal is cut from the usual 220V network. The workpiece can be a maximum of 200 mm. The voltage is converted by a portable transformer.
However, this kind of processing has drawbacks:
The self-manufacturing of the plasma torch requiresAvailability of some skills in assembling complex equipment. The main elements of the design are: nozzle, heating element, power source, compressor, switching equipment. Complexity arises with the selection of plasmoresis, through which combustible air masses are connected.
Insufficient design values of nozzle diameterlead to a marriage or to an insufficiently cut material. As a power source use an inverter from any welding machine. The criterion of selection is its maximum power.
Critical is the conformity of the type of fuelsubstance to the selected workpiece material. Products made of aluminum use nitrogen or hydrogen. For copper alloys, only the hydrogen mixture is suitable. And brass is cut using combined nitrogen and hydrogen.
Consider a plasma cutting machine with a CNC modelIGNIS 3000k. The equipment table can cut metals in sizes from 1.5 meters to 3. Processing materials can weigh 2.5 tons. Withstands normal operation at an ambient temperature of not more than 40 degrees and not less than 5.
The Ignis 3000k has a power supply 125Ampere. It is enough to perfectly cut metals up to 48 mm thick. The plasma allows cutting with an accuracy of 5 microns. For uniformity of combustion, an air pressure of 7 bar is required.
A small machine shows itself positively whenprocessing of any kind of metals. Cooling of the working area is carried out by air. The process is controlled by a modern automated CNC system.
There are a plasma cutting machine with CNCconsole and portal. In the construction of the first type there is one support, the latter has two. Accordingly, the second type is more reliable and more accurate, but such models have a relatively high cost.
One support gradually wears out due to skewingload on the bearings while moving the cutting element. Portal models have an easy path in the horizontal plane, the engine is positioned more quickly and the windings are warmed, respectively, insignificantly.
In modern models, tracking sensors have been introducedthe height of the burner, and also takes into account the deflection of the material. Portal systems are more productive than console systems. Modern machines are equipped with heavy-duty beams for fastening the cutting element. Its sagging above the working area is excluded.
To improve the performance of equipmentcan be retrofitted with robots that load and unload blanks without human intervention. This will ensure the safety of technology and will eliminate the human factor.
