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Numerical control lathe machining a slender shaft of some of the items listed

by:SNK     2020-09-01
Numerical control lathe processing list released time: some items of the slender shaft is 2020 - 02 - 10 clicks: 251 times of CNC lathe system is a certain intelligent system, intelligent content included in all aspects of the numerical control system: to pursue the machining efficiency and machining quality aspects of intelligent process parameters automatically generated; To improve the driving performance and intelligent use of connection and convenient, such as feedforward control, motor parameter adaptive computing, automatic identification model of load automatically selected, self-tuning, etc; Intelligent programming simplification operation, such as intelligent automatic programming, intelligent man-machine boundary and intelligent diagnosis and diagnosis of convenient system. Because the slender shaft rigidity is very poor, easy to deformation in machining, a great influence on machining precision and machining quality. To this end, be resolved production often adopt the following measures: 1. Improve workpiece clamping method, rough machining, because of the large cutting allowance of workpiece by the cutting force is big, generally adopts card method, tailstock top with elastic top, can make the artifacts in the axial elongation of freedom. But, due to the top of elastic limit, the axial elongation is restricted, so the top tight force is not very big. In high speed, large amount of cutting, the risk of artifacts from the top. Carla method can avoid the generation of this kind of phenomenon. Fine car, using the method of double top is beneficial to improve the precision, the key is to improve the precision of center hole. 2. The follower rest follow rest is turning a slender shaft is extremely important accessories. The follower rest can counteract the effects of processing when the radial cutting force component, thus reducing cutting vibration and deformation of workpiece, but must pay attention to adjust carefully, with the center of the head and the top center CNC lathe. 3. Using the reverse feed turning slender shaft, often makes the trend of the tool to the tailstock feed movement, this tool applied to the workpiece on the feed force direction towards the tailstock, and therefore has a tendency to make the workpiece produces axial elongation, elongation and kara tools greatly reduced due to the workpiece caused by the bending deformation. 4. The cutting tool of slender shaft turning tool rake Angle and the Angle of slender shaft is larger, so that the cutting is light, reduce the radial vibration and bending deformation. Rough machining by lathe tool on the knife before open a chip breaker groove, make it easy to chip breaker. Certain negative side Angle are common fine motor knife, the cutting flow to the machined surface. And Carla tools greatly reduces the bending deformation caused by artifacts elongation. Cutting tool rake Angle and the Angle of slender shaft is larger, so that the cutting is light, reduce the radial vibration and bending deformation. Rough machining by lathe tool on the knife before open a chip breaker groove, make it easy to chip breaker. Certain negative side Angle are common fine motor knife, the cutting flow to the machined surface.
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