FPGA-based acceleration and deceleration control for CNC machine tools

Abstract

Solve the problem of the steady transition in CNC machine speed in the high speed machining during start and stop. Based on the linear interpolation algorithm of double-axis and two dimensional, a new control method for double-axis stepper motor accelerating and decelerating at the same time was put forward, and the hardware on FPGA was realized. By two stepper motors directed to X and Y controlled through a set of circular distributor and driving-circuit, a transition may be steady. The simulation result gave good control effect and showed the effectiveness of this algorithm.