Abstract
77 In the present work, we consider the dynamic pre� cision in the working space of a machining center, by formulating the optimal diagram of interpolating� coordinate motion and creating devices for automatic tool exchange. Research is currently underway to improve the pre� cision and productivity of metalcutting jigboring machines (machining centers). Analysis of the operation of such machines, some� times known as multioperational machines, shows that their productivity is 3-8 times that of ordinary machine tools. Multioperational machines are char� acterized by high degrees of automation and may be successfully used in flexible automated production. Machinetool precision—the positional precision of the tool in the machine tool's working space—is determined both by the geometric precision of its components and by other important parameters, such as the elastic deformation of the kinematic chain in the drives of spacing screws, shafts, and bearings; the elastic deformation in contact joints (such as the stand-frame, frame-table, and shaft-bearing joints); temperature deformation; and the free play in the kinematic chains. The positional errors in the tool-part pair may be divided into two categories: static errors; and dynamic
Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
