The machining characteristic of nc machine tools
From:Taian Haishu Machinery Co.,Ltd. Updatetime:2016-1-28 10:12:36 Views：
CNC machine tools, CNC machine tool factory, CNC machine price, shandong CNC machine tools
Nc machine tools with high precision, high efficiency, able to adapt to small batch more varieties of complex parts processing, etc, are widely used in mechanical processing.In summary, the numerical control machine tool processing has the advantages of the following aspects.
(1) strong adaptability.Control machine tool of the flexibility of the adaptability of the so-called, is index changes over the production object's ability to adapt.Change on the CNC machine tool processing parts, only need to program, enter the new program can realize to the new parts processing;And do not need to change the mechanical part and control part of the hardware, and the production process is done automatically.For complex structure parts of single piece and small batch production and manufacture of new products provides a great convenience.Strong adaptability is the most significant advantage of a CNC machine tool and numerical control machine tool to the production and the main cause of rapid development.
(2) high precision, stable quality.Nc machine tools are presented according to the digital form of instructions for processing, the working process of the normally does not need manual intervention, this eliminates the operator error produced artificially.In designing and manufacturing of CNC machine tools, taken many measures, make the mechanical part of nc machine tools to achieve the high precision and rigidity.CNC machine tool working platform of mobile equivalent common reached 0.01 ~ 0.0001 mm, and the reverse feed transmission chain gap and the screw pitch error can compensate by numerical control device, such as high-grade CNC machine tools using grating ruler to workbench mobile closed-loop control.The machining precision of CNC machine tools from the past + / - 0.01 mm to + / - 0.005 mm or more.Positioning accuracy in the ninety s brought about has reached plus or minus 0.002 mm ~ + / - 0.005 mm.In addition, numerical control machine tool driving system and machine structure has very high stiffness and thermal stability.Through compensation technology, nc machine tools machining precision can obtain higher precision than itself.Especially enhances the consistency of production, the same parts product qualified rate is high, the processing quality is stable.
(3) the high production efficiency.Parts processing time required to mainly includes two parts of the maneuver time and auxiliary time.Range of nc machine tool spindle speed and feed than ordinary machine tool, so the numerical control machine tool every working procedure can choose the best cutting parameter.Due to the structure of nc machine tool rigidity, thus allowing large cutting force of cutting parameter, this improves the efficiency of nc machine tool cutting, save the maneuver time.Nc machine tool's moving parts spare travel movement speed, short workpiece clamping time and cutting tool can be automatically replaced, auxiliary time greatly reduced than the general machine tools.
Nc machine tool replacing processed parts almost don't need to adjust machine, save time to install the parts.Numerical control machine tool processing quality is stable, generally only for first article inspection and process between the key size of the sampling inspection, inspection downtime has been saved.When machining center machine, a machine tool to achieve the multi-channel working procedure of continuous processing, improving the efficiency of production.
(4) can realize complicated movement.Common machine tool is difficult to achieve or cannot achieve trajectory for more than three times the curve or surface movement, such as the propeller, such as turbine blade space curved surface;Is almost arbitrary trajectory can be realized and nc machine tool movement and the processing of any shape of space curved surface, suitable for processing of complex shaped parts.
(5) good economic benefits.Numerical control machine tool while equipment is expensive, the allocation to each parts of equipment depreciation cost is higher.But in the case of a single piece and small batch production, the use of CNC machine tool processing can save marking time, reduce the adjustment, machining and inspection time, save production cost directly.The numerical control machine tool processing parts do you usually do not need to make special fixture, save the cost process equipment.Nc machine tools machining precision stability, reduce the rejection rate, the production cost down further.In addition, numerical control machine can realize multi-usage, save factory building area and building investment.So using nc machine tool can obtain good economic benefit.
(6) is conducive to the modernization of production management.Nc machine tools using digital information and standard code processing, transfer information, especially in the computer control is used on nc machine tools, for the computer aided design, manufacturing and management integration laid the foundation.
