The influence of thermal deformation of precision CNC lathe system

CNC lathe is a kind of high function, high precision, low noise feeding type initiative in the lathe. For copper, aluminum, iron, zinc alloy, plastic materials such as continuous repetitive processing. With active upper and lower expected, the active characteristic of feed. Especially suitable for automobile and motorcycle accessories, refrigeration fittings, plumbing valves, electronic appliances, machinery, hardware and other batch processing industry, can save a lot of artificial. Commonly used active lathe has a CNC lathe, active lathes, hydraulic pneumatic lathe actively, active CAM lathe, etc. Ramp CNC lathe factory machining error caused by the thermal deformation of the lathe of lathe is affected by heat source, temperature of each part will change, because the heat spread clutter of uneven lathe structure, lathe parts will attack different degree of thermal deformation, damage the original geometry precision lathe, then caused the machining error. Lathe type lathe the primary heat source is the bearing of the spindle box, gear and clutch transmission vice friction spindle box and bed temperature rise, then formed the lathe spindle high lift and tilt. Displacement of the spindle in a horizontal direction only lO microns, and vertical displacement is reached 180 ~ 200 microns. The device of cutting tool level of horizontal lathe machining accuracy is affected, but the active lathe tool of vertical device and turret lathe, effect on the machining accuracy of nots allow to ignore. Cutting tool or part of the cost in the motion of the workpiece in the process of cutting work, quite a number of conversion of the cutting deformation energy and friction heat between the chip and tool, hot forming cutter, the spindle and workpiece, and by many chip heat transfer to the work station of the lathe fixture etc. They will directly influence the relative position between tool and workpiece. Cooling the temperature rise on the lathe reverse measures, such as motor cooling, cooling of spindle parts cooling and basic structure, etc. High-end lathe tend to match refrigerating machine, electric control for forced cooling.

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