Method for welding electric machine rotor copper bar coil by using high-frequency soldering machine

A high-frequency brazing and welding technology, applied in welding/welding/cutting items, welding media, welding equipment, etc., can solve the problems of uneven copper bar surface, cracks at corners, poor electrical conductivity, etc. The effect of good shape, energy saving and high welding efficiency

Inactive Publication Date: 2008-03-05
TIANJIN TIRNFR HEAVY HYDROELECTRIC FRCILITY CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The coil wound by the above-mentioned flat winding machine has backward technology, poor electrical conductivity, unevenness on the surface of the copper bar, cracks at the corners, and defects in the welding joints.
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  • Method for welding electric machine rotor copper bar coil by using high-frequency soldering machine
  • Method for welding electric machine rotor copper bar coil by using high-frequency soldering machine
  • Method for welding electric machine rotor copper bar coil by using high-frequency soldering machine

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Embodiment Construction

[0050] Embodiments of the present invention will be further described below in conjunction with the accompanying drawings.

[0051] The invention provides a welding method for welding the copper bar coils of the motor rotor with a high-frequency brazing machine. The invention completes the welding of the copper bar coils of the motor rotor on the high-frequency brazing machine. The structure proceeds as stated:

[0052] As shown in Figures 1 to 6, the high-frequency brazing machine for welding the copper bar coils of the motor rotor includes: a base 10 with double guide rails 1, a main frame 20, a mobile frame 22, an induction brazing mechanism 30, a workbench and fixtures 100.

[0053] The bottom of the main frame 20 is provided with a drive mechanism 2 to move along the guide rail 1, the drive mechanism 2 is composed of a lead screw 4 connected to the motor 3 and a nut 6 mounted on the lead screw 4 at the bottom of the main frame 20, A slideway 26 parallel to the guide rai...

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Abstract

The present invention discloses welding process of copper bar and coils in motor rotor with a high frequency brazing machine. The welding process includes the following steps: 1. pressing the welded workpieces on the inducer; 2. heating weld junction, repair welding and shaping; 3. turning the copper bar automatically and welding its other weld junction; turning the copper bar automatically to the initial welding position; and 5. ending. The present invention has the advantages of high welding efficiency, high welding quality, high material utilizing rate, etc.

Description

technical field [0001] The invention belongs to a welding method, and in particular relates to a welding method for welding a motor rotor copper row coil with a high-frequency brazing machine. Background technique [0002] At present, in power generation equipment, the rotor coil is one of the most critical components and plays a very important role in the operation of the equipment. Large-scale power generation equipment rotor coils are made of red copper brand welding. The quality of the copper brand coil directly affects the performance of the power generation equipment, and the quality of the copper brand coil depends to a large extent on the welding quality. [0003] Domestic prior art copper bar coil processing adopts mechanical winding, that is, the rotor coil is wound into a spiral shape by the flat winding machine, and a special flat winding abrasive tool is set on the flat winding machine to automatically move from bottom to bottom on the flat winding machine. Co...

Claims

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Application Information

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IPC IPC(8): B23K1/002B23K3/08B23K37/053B23K37/047B23K35/16B23K101/36
Inventor 李卫红张俊新单庆臣元哲广
Owner TIANJIN TIRNFR HEAVY HYDROELECTRIC FRCILITY CO LTD
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