AC permanent magnet disc type torque motor drived large-torque double-pendulum milling head

Abstract

The invention relates to a large torque double-pendulum milling head driven by an AC permanent magnet disc type torque motor, which belongs to the combination mechanism for achieving the five-axis linkage processing on the machining center. The double-pendulum milling head mainly comprises a C axis part and an A axis part. The double-pendulum milling head is characterized in that the C axis part adopts the technical scheme that a rotary sleeve is rotated through driving of a double-linkage disc type torque motor, the rotary sleeve drives the A axis part to rotate together through a connecting disc and a connecting cover, and the C axis part also adopts a clamping bag type clamping mechanism; the A axis part adopts the technical scheme that a main shaft bracket with a main shaft to rotate together through driving of two disc-type torque motors mounted on the main shaft bracket, and the A axis part also adopts a rhombic block type clamping mechanism. The large torque double-pendulum milling head has the advantages that the iron core area of the disc-type torque motor is large, and the output power is great, the utilization rate of the magnetic field is high, and the efficiency of the motor is high; the double-pendulum milling head is provided with a cooling channel, and the radiating condition is good; the axial size is small, the rotary inertia of the rotor is small, the reaction rate is high, and the dynamic performance is good; and the operation of the clamping mechanism adopted is reliable and safe.

Description

technical field [0001] The invention relates to a high-torque double pendulum milling head driven by an AC permanent disk type torque motor, which belongs to a combined mechanism for completing five-coordinate linkage processing on a machining center. Background technique [0002] The double pendulum milling heads currently used in CNC machine tools are all driven by mechanical transmission or external rotor torque motors. The mechanically driven double pendulum milling head is driven by an ordinary motor (column motor), which drives the C-axis and the A-axis to rotate after decelerating through transmission parts such as gears, worms, and turbines. Due to the existence of mechanical transmission, problems such as transmission error, backlash, friction, and vibration occur. Since the transmission chain has a moment of inertia, it affects the response speed and dynamic performance. The advantage of the double pendulum milling head with mechanical transmission is that the ou...

AI Technical Summary

Problems solved by technology

In order to increase the output torque of the motor, the volume of the iron core must be increased, and the winding space of the motor winding must be increased

Images