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A kind of anti-deformation device and method for friction welding of rotor bar

A rotor bar and anti-deformation technology, applied in electromechanical devices, manufacturing motor generators, electrical components, etc., can solve the problems of low production efficiency, long process flow, high processing cost, improve production efficiency, optimize process flow, The effect of preventing displacement or deformation

Active Publication Date: 2022-07-26
南阳防爆(苏州)特种装备有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, the above-mentioned welding method has the defects of high processing cost, low production efficiency, and long process flow.

Method used

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  • A kind of anti-deformation device and method for friction welding of rotor bar
  • A kind of anti-deformation device and method for friction welding of rotor bar
  • A kind of anti-deformation device and method for friction welding of rotor bar

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] An anti-deformation device for friction welding of rotor bars, refer to figure 1 and figure 2 , which includes an outer ring 1 and an inner ring 3; the inner ring 3 is provided with a plurality of positioning and clamping assemblies arranged in the circumferential direction, and the number of the positioning and clamping assemblies matches the number of the rotor bars, that is, adjacent A positioning and clamping assembly is arranged between the two rotor bars; the positioning and clamping assembly includes a positioning block 4 and a movable clamping block assembly arranged on the positioning block 4, and the movable clamping block assembly includes a retracted state and an outer support state; wherein , after the device is rotated, the positioning block 4 moves to cooperate with the outer ring 1 under the action of centrifugal force; a first self-locking structure is arranged between the positioning block 4 and the outer ring 1, so that the positioning block 4 and th...

Embodiment 2

[0057] A friction welding method for rotor bars using the deformation preventing device in Embodiment 1, refer to Figure 1 to Figure 7 , which includes the following steps:

[0058] S01, install the anti-deformation device on the rotor;

[0059] Specifically, firstly, the outer ring 1 and the positioning sleeve 2 are sleeved on the outer circle of the rotor, the inner ring 3 is sleeved on the rotating shaft of the rotor, and then the positioning pin 8 is installed to define the outer ring of the inner ring 3. At this time, the inner ring 3 and the outer ring 1 are located on the inner and outer sides of the rotor guide bar, respectively, and then the positioning sleeve 2 and the convex ring 13 are tightened to prevent them from loosening.

[0060] S02, control the rotation of the rotor, so that the positioning and clamping components move under the action of centrifugal force, and position and clamp the rotor bars;

[0061] Specifically, after the rotor rotates, the anti-de...

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Abstract

The invention discloses an anti-deformation device and a method for friction welding of a rotor guide bar, which relate to the technical field of motor processing. The main points of its technical solution include an outer ring, an inner ring and a positioning and clamping assembly, and the positioning and clamping assembly includes a positioning block and a movable clamping block assembly; after the device is rotated, the positioning block moves to match with the outer ring under the action of centrifugal force. and self-locking; during the movement of the positioning block, the movable clamping block is in a retracted state, and after the positioning block stops moving, the movable clamping block assembly moves to the outer support state under the action of centrifugal force; the movable clamping block in the outer support state The assembly is located between adjacent rotor bars and is in contact with the rotor bars; a second self-locking structure is arranged between the movable clamping block assembly and the rotor bar, so that the relative position of the movable clamping block assembly and the rotor bar is maintained constant. The invention can prevent the displacement and deformation of the rotor bar during friction welding, thereby improving the production efficiency.

Description

technical field [0001] The invention relates to the technical field of motor processing, and more particularly, to an anti-deformation device and method for friction welding of rotor bars. Background technique [0002] The common welding method of the rotor guide bar and the end ring of the motor is to place the end ring on the welding device and install the motor rotor. After positioning one end of the guide bar on the rotor with the concave groove of the end ring, place it in the concave groove. into the flux. Then, the guide bar and the end ring are heated sequentially along the circumference, and after the flux is melted, the rotor guide bar and the end ring can be welded together. [0003] The machining method of the motor rotor is to put a guide bar in the guide bar groove of the motor rotor, and the distance from the end face of the motor is basically the same, and riveted and fixed, and then the two ends of the guide bar are processed on a lathe to make the shape co...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02K15/00
CPCH02K15/0068
Inventor 王春良张赓张书启张大柯陈鑫
Owner 南阳防爆(苏州)特种装备有限公司