Block type motor stator core assembling and welding tool of concentrated winding

Abstract

The invention discloses a block type motor stator core assembling and welding tool of a concentrated winding. The tool comprises a molding hoop, an iron core inner circle positioning core rod and a block stator iron core. A positioning boss is arranged on the molding hoop. An iron core welding groove is formed in the side part of the molding hoop. Two groups of locking plates are arranged at the side part of the molding hoop. The block stator iron core is provided with a block stator iron core self-buckling groove. The iron core inner circle positioning core rod is provided with an end windingplacing groove. A first iron core outer diameter control flange table is arranged on the iron core inner circle positioning core rod. A hoop end positioning table is arranged on the iron core inner circle positioning core rod. According to the invention, the stator iron core can be locked without press fitting equipment and tools; the efficiency is greatly improved; the risks of collision and insulation damage to windings on the iron core are avoided; the iron core assembling and welding quality is ensured; and the stator iron core welding yield is greatly improved.

Description

technical field [0001] The invention belongs to the technical field of stator core assembly and welding, and in particular relates to a block-type motor stator core assembly and welding tool with concentrated winding. Background technique [0002] In the process of motor design and development, the assembly and welding of the stator core in the motor is a very important part. During assembly and welding, assembly and welding tools are required. The existing assembly and welding tools use outer cylindrical fixing sleeves and assembly sets. It is used in conjunction with the dismantling and ejecting sleeve, and is fixed by the outer cylindrical fixing sleeve and the assembly set. After the coiled segmented stator core is preliminarily formed by the forming tool, it is pressed into the outer cylindrical fixing sleeve through the oblique angle of the outer cylindrical fixing sleeve. Inside, the stator core is fixed with fixing screws, the stator core is welded through the weldin...

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Problems solved by technology

However, before the segmented stator core is welded into a full-circle stator, the stator winding coil is wound on the segmented stator core, and there are many lead wires. It is easy to damage the stator winding insulation during press-fitting, and the efficiency of press-fitting is very low. ; It is difficult to ensure the inner diameter of the outer circle fixed sleeve, the concentricity and ellipticity of the inner and outer diameters of the full-circle stator core after press-fitting are difficult to guarantee, and the inner and outer circle dimensions are difficult to guarantee, which has a great impact on the performance of the motor. It is difficult to guarantee the quality of the welded stator core; when the welded stator core is ejected with the ejector sleeve, it is easy to cause the stator core to be skewed, and the verticality of the iron core is difficult to meet the requirements. Yield is not high

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