Expansion machine

Abstract

The invention discloses an expansion machine, and belongs to the technical field of automation equipment. The expansion machine includes a machine base, a clamping mechanism and an expansion mechanism. The clamping mechanism is arranged on the machine base and can clamp a stator to be shaped. The expansion mechanism is arranged on the machine base and is located on one side of the clamping mechanism. The expansion mechanism includes multiple expansion plates which are annularly distributed. The expansion plates can diffuse and move away from the central axis of the ring. One of the clamping mechanism and the expansion mechanism can move toward the other one, and so the expansion plates can extend into a coil of the stator. The expansion plates can diffuse and move away from the central axis of the ring so as to expand the coil. The expansion machine can automatically expand the coil on the stator, and so the labor cost is reduced and the shaping efficiency of the coil is high. The multiple expansion plates synchronously expand outward, mechanical action has good consistency on the coil shaping, and the shaping quality is high.

Description

technical field [0001] The invention relates to the technical field of automation equipment, in particular to an expanding machine. Background technique [0002] The stator is the stationary part of the motor or generator whose main function is to generate a rotating magnetic field. The stator is composed of a stator core and a coil. When assembling the coil and stator core, the coil (usually made of copper wire) is wound in a specific shape by the winding machine, and inserted into the installation groove of the stator core by the coil insertion machine. Since the installation slot is relatively small, the full slot rate of the copper wire after the coil is inserted is high, so that the shape, height, and relative position of the coil end on the anti-lead side of the stator after the coil has been inlaid are difficult to meet the process requirements, and reshaping is required. . [0003] The existing shaping method usually adopts manual shaping, that is, after the stato...

AI Technical Summary

Problems solved by technology

[0004] The above method of shaping the coil has the following defects: manual operation consumes manpower, more working hours, and lower shaping efficiency; it is easy to cause copper wire breakage, the shape of each coil is different, and the consistency is poor; manual operation tests the operator's ability. Quality, coil end shape, height, and position requirements require high proficiency in the operation of personnel

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