Automatic diameter expanding system of motor damping ring

Abstract

The invention discloses an automatic diameter expanding system of a motor damping ring. The automatic diameter expanding system comprises a damping ring heating device, a damping ring diameter expanding device, a first transferring mechanical arm and a second transferring mechanical arm; the first transferring mechanical arm is arranged between the damping ring heating device and the damping ringdiameter expanding device and is used for clamping the heated damping ring to the upper end of an expansion sleeve; and the second transferring mechanical arm is arranged at the downstream of the damping ring diameter expanding device and is used for moving the expanded damping ring out of the upper end of the expansion sleeve. The damping ring heating device pushes the damping ring into a heatingfurnace through a pushing device to heat, a copper ring is conveyed to the damping ring diameter expanding device to be expanded through the first transferring mechanical arm, the expanded damping ring is moved out through the second transferring mechanical arm, and the automatic expanding system can achieve automatic heating, expanding and shifting of the damping ring, so that the defects that the size of the damping ring is too small in the current motor production industry and the assembly of a rotor cannot be met are overcome, and the production cost is reduced.

Description

technical field [0001] The invention relates to an automatic diameter expansion system, in particular to an automatic diameter expansion system for a motor damping ring. Background technique [0002] The permanent magnet synchronous motor rotor is generally composed of rotor core, damping ring (copper ring), damping bar, rotor pressure plate and shaft and other components. The traditional process of welding the damping ring and the damping bar is as follows: first insert the damping bar into the damping groove of the rotor core, and then use bolts and other fasteners and press-fitting tools to fix the damping ring on the end face of the rotor core. The lower pair of damping rings and damping strips are welded with silver welding rods to form a damping cage. After the pressing tool is removed, the rotor core is tightened by the damping cage. Before the rotor is assembled into a motor, the dynamic balance needs to be calibrated to make it reach the allowable balance accuracy ...

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is to provide an automatic diameter expansion system for the motor damping ring, which can realize automatic heating, diameter expansion and removal of the damping ring, thereby solving the problem of the size of the damping ring in the current motor production industry. Too small to accommodate imperfections in rotor assembly, reducing production costs

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