Welding assisting device for disc-type motor stator core

Abstract

The invention relates to a welding assisting device for a disc-type motor stator core, and the device consists of a welding platform, a plural of press blocks, and press nails. The press nails are disposed at two ends of the press blocks, and pass through the press blocks to be connected with a welding platform. The welding platform is of a disc structure with a through hole at the central part. The surface of the welding platform is a conical surface, and the periphery of the inner ring of the conical surface is provided with a small circular projection. Compared with the prior art, the device does not need the operation for removing the welding stress, and is high in finished product rates of welded stator cores. The device reduces the investment in equipment and places, and is low in production cost. The device is short in production cycle, and is low in manpower cost.

Description

technical field [0001] The invention relates to a welding auxiliary device, in particular to a welding auxiliary device for a stator iron core of a disc motor. Background technique [0002] Welding, also known as welding or welding, is a manufacturing process that uses heat, high temperature or high pressure to join metal or other thermoplastic materials such as plastics. Welding achieves the purpose of joining through the following three ways: (1) fusion welding: heating the workpiece to be joined to make it partially melt to form a molten pool, and the molten pool will be joined after cooling and solidification, and fillers can be added if necessary; (2) pressing Welding: The welding process must exert pressure on the weldment; (3) Brazing: use a metal material with a lower melting point than the base metal as the solder, use the liquid solder to wet the base metal, fill the gap, and interdiffused with the base metal to achieve the link For weldments, these three welding ...

AI Technical Summary

Problems solved by technology

[0003] When the traditional disc-type iron core is manufactured, the welding auxiliary equipment adopts a flat type, and then vibration or natural aging is used to eliminate the welding stress. The following disadvantages exist in the use of such a manufacturing process: (1) The yield of the iron core is low

The connection between the stator iron core and the mounting plate of the disc motor adopts a welding process. The structural strength of the iron core body is insufficient. The stress can still cause enough deformation to cause the stator core to be scrapped; (2) The production cycle of the iron core is long

It takes more than 0.5 hours to prepare for vibration aging to eliminate stress, and the vibration time of the iron core body needs about 2-3 hours to play the role of stress relief, and the smaller the size of the iron yoke part of the stator core, the greater the deformation, and the time used for vibration aging It is also longer, so when this process is used to make the iron core, the iron core manufacturing time is long, and the welding time of the iron core is no more than 0.5 hours, and the time used to eliminate the stress by vibration aging accounts for 80% of the entire iron core manufacturing process; (3) increased Equipment, site and labor investment

Using this process to make stator cores requires investment in vibration aging equipment and process sites. During mass production, a large increase in vibration aging equipment is required, resulting in increased site and labor costs.

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