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Nc lathe application in manufacturing industry

by:SNK     2020-08-27
Nc lathe application in manufacturing release date: 2019 - 10 - 23 author: click: lathe is mainly used for processing of rotary surface and end face of rotors. Such as turning inside and outside the cylinder, cone surface and surface of slewing ring groove and forming, cutting face and all kinds of common thread, equipped with all kinds of craft equipment can also be processed contour surface. What can you do on a lathe drilling, reaming, reaming, knurling, etc. Milling machine a wide range of nc lathe can be processed on milling machine plane ( Horizontal and vertical) And grooves ( Keyway, T slot, dovetail groove, etc. ) , tooth parts ( Gears, spline shaft, wheel lovely, spiral surface ( Screw, screw groove) And all kinds of curved surface. In addition, it can be used in the surface of solid of revolution, inner hole machining and cutting work, etc. Milling machine at work, the workpiece is installed on the workbench or on dividing the first attachment, cutter rotating movement, accompanied by a table or milling head feed movement, the workpiece can obtain the required machining surface. Because the cutter is intermittent, and high productivity of milling machine. With the rise of China's manufacturing, numerical control lathe customization was widely used in machinery manufacturing, solved the complex, precision, small batch and many varieties of parts processing, is a kind of flexible, highly efficient automation of machine tools, represents the development direction of modern machine tool control technology, is a typical electromechanical integration products, laid the important position of importance. Precision processing technology rapid development and constantly improve the machining accuracy of parts, for CNC lathe precision custom also put forward higher requirements. Improve the precision of numerical control lathe, the CNC deep hole drilling machine location precision inspection ISO230 - usually adopt international standards 2 GB10931 - or national standards 89, etc. The same machine tools, due to using different criteria, the resulting position precision is also different, so in choosing the numerical control lathe precision index, also should pay attention to it adopted by the standard. CNC lathe usually refers to the location of the standard the reverse bias and positioning accuracy of CNC axis. On the numerical control lathe, because each coordinate axis feed drive chain drive parts ( Such as servo motor, servo motor and stepper motor, etc. ) Reverse dead zone, the mechanical movement transmission vice reverse clearance error exist, such as to cause the axis by the forward motion into reverse movement formed the reverse bias, is often called reverse clearance or lost momentum. For the half closed loop servo system of numerically controlled lathe, the existence of the negative deviation will affect the positioning accuracy of machine tool and repeat positioning accuracy, thus influence the machining precision of the products. Such as G01 cutting movement, reverse bias will affect the precision of interpolation motion, if the deviation is too large will cause 'circle is not round, not square' situation; And in the G00 rapid positioning, the reverse bias affect the positioning accuracy of machine tools, drilling, boring holes, such as processing between each hole location accuracy is lower. At the same time, as the growth of the equipment in operation time, reverse bias will also gradually increasing of the kinematic pair gap caused by the wear and tear, so need regular negative deviation of each coordinate axis of nc machine tools are measured and compensation.
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