Shaping clamping fixture for motor coil

Abstract

The invention relates to a shaping clamping fixture for a motor coil. The shaping clamping fixture comprises an outer shaping clamping fixture and an inner cavity shaping clamping fixture, wherein the outer shaping clamping fixture is a tension band; and the inner cavity shaping clamping fixture is a swelling pressure body for swelling and pressing the inner cavity and top surface of the end part of the motor coil. The shaping clamping fixture is characterized in that: the inner cavity shaping clamping fixture for the coil mainly comprises a swelling sleeve, a swelling core, a spring and an elastic ring, wherein the swelling sleeve consists of a top stressed pressure plate part, a middle inverted conical sleeve body part and a bottom cylindrical positioning mortise part, which are coaxially arranged; a swelling core through hole is reserved in the center of the top stressed pressure plate part; a force application pressure plate is arranged on the top of the swelling core, and is positioned above the stressed pressure plate; a swelling core body on the lower part of the force application pressure plate is embedded into an inner cavity of the swelling sleeve through the swelling core through hole, and can move up and down; the spring is fixed between the swelling core and the swelling sleeve; the swelling sleeve is formed by splicing more than three same swelling sleeve blocks which are cut by a vertical plane passing through a central axis, and is banded to form a whole through the elastic ring; and the tension band is positioned below the stressed pressure plate. The shaping clamping fixture has the advantages that: damage to a conducting wire is avoided, and coil shaping is ensured to meet set requirements.

Description

technical field [0001] The invention relates to a process device, in particular to a combined elastic motor wire bag shaping mold. Background technique [0002] In the process of motor production and assembly, the wire package wound on the stator must be reshaped after assembly. The traditional shaping mold includes an external shaping mold and an inner cavity shaping mold. The external shaping mold is set outside the end of the wire package. The hoop, whose height is the set height of the end of the wire bag, is used for external shaping and height adjustment of the end of the wire bag; The pressure plate on the top surface of the end of the crimping package and the lower part are provided with an expansion and pressure body of an inverted tapered expansion core inserted into the inner cavity of the crimping package. When in use, put the external shaping tool on the outside of the end of the stator wire package, insert the inverted tapered expansion core of the inner cavit...

AI Technical Summary

Problems solved by technology

The disadvantage of the existing inner cavity shaping mold is that the pressure plate and the inverted conical expansion core are integral structures, and the stress is concentrated. When the pressure plate is pressed down, the pressure is greater than the lateral expansion force, which makes the wire squeeze down and is easy to be damaged, and the inner cavity of the wire package The size and shape of the product cannot meet the predetermined requirements, which will affect the product quality

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