CNC Turning and Milling Compound Machining for Crankshaft Selection Control

CNC turning and milling compound processing For machining camshafts and large crankshafts, we hope that the equipment has better maneuverability, a multi-functional and flexible turning and milling head, and a powerful anti-collision protection function. Generally, in addition to the advanced and stable CNC system, the static geometric accuracy of the machine tool must be reliable, stable, and long-term retention. The dynamic positioning accuracy should be implemented in accordance with the VDI3441 standard, and the acceptance and acceptance of the repeat positioning accuracy Ps is particularly exaggerated. Assess, since both positioning accuracy and backlash can be compensated by the numerical control system, repeat positioning accuracy is a combination of manufacturing accuracy and transmission chain accuracy, and it cannot be compensated.

The quality of machine tool manufacturing cannot be sloppy. We say that first-class products reflect culture and quality. Second-rate products require quality and output, while third-rate products only demand quantity. According to CNC turning-milling composite processing manufacturers, the current level of domestic machine tool manufacturing is that it only seeks quantity but ignores quality, causing itself to lose its own brand, not turning the product series into a monument, but turning it into a tombstone. Under the current situation, each machine tool factory should be fully familiar with that it will be difficult to survive without good quality and technical after-sales service.

CNC turning and milling combined processing requires that when machining slender shafts, the bending and winding of the crankshaft can be measured during clamping and the center frame can be compensated by the CNC system. At the same time, the online measurement function can be realized by the instrument during processing. , The key points to be achieved in the camshaft processing: the verticality of the two outer end faces of the flange relative to the camshaft axis, the runout is 0.02mm, the position of the two gate holes on the two flanges relative to the axis of the boss on the same side, The coaxiality of one hole relative to the other hole, the dimensional accuracy of each cam profile, and the shape and position accuracy include: profile, the runout of the base circle relative to the axis of the boss at both ends of the camshaft, and the generatrix of the cam profile relative to both ends of the camshaft The parallelism of the boss axis and other requirements. Similarly, for crankshaft connecting rod neck machining, a number of requirements such as coaxiality and parallelism must be maintained.

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