Numerical control woodworking engraving machine processing (acceleration and deceleration Lifting frequency method)
www。 yifansk。 Com/introduce a simplified method is also the core of advanced numerical control system of numerical control woodworking engraving machine technology. In order to reduce or avoid the numerical control woodworking engraving machine machine tool moving parts in motion changes ( Such as start, stop, acceleration and deceleration) Impact, nc system should be has the function of automatically smooth deceleration. Deceleration processing and interpolation calculation at the same time, the startup, send the pulse frequency of the stepper motor is gradually increasing, until you reach the highest speed running smoothly. Stop deceleration point prediction in advance before, start from the deceleration point to reduce the pulse frequency, and 0. S curve deceleration principle as shown in the figure below, the entire CNC woodworking engraving machine deceleration process is divided into three sections: accelerating segment ( 1, 2, 3) ; Uniform segment ( 4) And deceleration period ( 5, 6) 。 Acceleration and deceleration, and then respectively, including variable speed area ( 1 hc-positie area) And constant deceleration area ( 2, 6) 。 In variable speed zone, Id Ⅱ/dtI = J, Jerk to a constant value; Constant speed zone I Ⅱ I = A constant value, the speed of uniform section for A constant value. S curve interception of 40 ~ 80 points, according to each point frequency pulse delay values are obtained. At the frequency ( Acceleration) , from the bottom of the table in order to load the delay value to the timer, so after 40 ~ 80 pulses, the motor speed up to expectations, and run at a constant speed. Frequency reduction ( Slow down) The reverse of litres of frequency. Numerical control woodworking engraving machine deceleration schematic engraving machine price information in yifan numerical control net.