Virtual Machine Tool

Simulation of Virtual Machine Tool During the Machine Design

“…The capability and efficiency of a machine tool are mainly determined by its kinematics, structural dynamics, computer numerical control system and the machining process [1]. The CNC system consists of a computer, power electronic components, such as motor amplifiers and electronic circuits, and servo actuators.…”

“…The simulation of the CNC system involves virtual modelling of the machine tool kinematics and feed drive dynamics, update of the workpiece geometry as the material is removed and motions of the drives and auxiliary units, such as tool and pallet changes. In short, the rigid body motion of the machine tool and the CNC functions must be predicted as the workpiece is produced in order to realize a Virtual CNC system [1].…”

“…In some commercial controllers machining simulation systems are integrated. During machining the simulation system runs a number of blocks ahead, and if there is a danger of a collision, the controller stops the machine immediately [1].…”

Virtual manufacturing: prediction of work piece geometric quality by considering machine and set-up accuracy

“…Thus, the design phase takes into account the manufacturing constraints as the customer requirements; more these constraints must not restrict the creativity of design. Also to facilitate the choice of the most suitable system for a specific process, Virtual Manufacturing is supplemented with developments of numerical computations (Altintas et al 2005, Bianchi et al 1996 in order to compare at low cost several solutions developed with several hypothesis without manufacturing of prototypes. Our approach of product-process integration is illustrated in Figure 1: the quality of mechanical parts depends on the expression of specifications (shapes, functions, dimensions, surface quality and materials), the capacity of shaping processes and resource capability (defects in machine-tools, tools, fixtures).…”

Design of a 4-DOF hybrid PKM module for large structural component assembly

“…The dimensional synthesis of the 2-DOF parallel mechanism is investigated using virtual machine tool technology [11]. Then, rigid body dynamics and stiffness analyses are carried out for performance evaluation of a full-size virtual prototype, using commercial CAE software.…”