Power generator claw pole rotor and fan welding tool

Abstract

The invention relates to a power generator claw pole rotor and fan welding tool. The welding tool comprises an upper electrode holder and a lower electrode holder. The upper electrode holder and the lower electrode holder are both provided with circle center holes. A circle center locating block and a plurality of electrode heads are arranged on an electrode head mounting boss of the lower electrode holder. The circumference of the electrode head mounting boss is provided with a plurality of fan blade receding notches. At least one fan blade receding notch is internally provided with a circumferential locating block. The outer circle of the lower electrode holder is provided with a claw pole circumferential locating device composed of a fixed seat and a claw pole locating block. The claw pole locating block is provided with a locating end matched with an included angle notch of two claws of a claw pole. The locating end extends to the circle center hole to conduct locating on the clawpole. The lower end of the upper electrode holder is provided with a mounting base platform. The mounting base platform is provided with a plurality of receding grooves. At least one receding groove is internally provided with a fan blade locating block in an embedded mode. The fan blade locating blocks are pressed to be located through an inner pressing ring and an outer pressing ring. The welding tool can conduct accurate locating on a fan to be welded and a rotor to be welded, can guarantee the positional accuracy of the rotor and the claw pole and can greatly facilitate locating and installation.

Description

technical field [0001] The invention relates to a welding tool, in particular to a welding tool for a claw pole rotor and a fan of a generator. Background technique [0002] Now the AC claw pole generator for automobiles includes a stator, a rotor and a fan, wherein the circumference of the claw pole disk of the rotor is provided with a plurality of claws, and these claws are evenly distributed on the outer periphery of the claw pole disk and folded along the axial direction of the rotor. There are two opposite claw pole disks on the top, and the claw tips of the two claw pole disks face each other and act as magnetic poles. Fans for heat dissipation are usually arranged in the axial direction of the rotor claw pole disk. For generators with fans installed at both ends of the rotor claw pole disk in the axial direction, the two fans are generally welded to the claw pole disks at both ends of the rotor respectively. During welding, the position accuracy of the claws of the t...

AI Technical Summary

Problems solved by technology

However, although the existing welding tooling for the rotor claw pole disc and the fan includes electrodes and positioning seats, the welding position of the two fans is always inaccurate, and the position accuracy of the claws of the fan blade and the claw pole disc is not high, resulting in power generation. There is a problem with the dynamic balance of the rotor of the generator, which causes the noise of the generator to work, the bearings to work abnormally, and the generator to burn out due to excessive heat.

Images