Motor coil expansion method and full servo digital control motor coil expander

Abstract

The present invention relates to a single-time automatic forming method of the electric motor coil and the special hardware. The characteristics of the method reside in that the motions of stretching the edge of the coil to be extended, driving up the end part of the coil and distorting the coil edge and the nose part, and the forming of involute of the end part and the circular arc at each bended part are all included in the coil extending steps. The characteristics of the device reside in that: the mechanical part includes a base frame, a combination of top-left mechanical arm and the mechanical hand, a combination of bottom-left mechanical arm and the mechanical hand, a combination of top-right mechanical arm and the mechanical hand, a combination of bottom-right mechanical arm and the mechanical hand, a combination of a moveable frame on the left end part and a clamp of the nose part, a combination of a moveable frame on the right end part and a clamp of the nose part, and each part is drove and controlled through the corresponding AC servodrive module, AC servodrive electric motor, and a logic controller. The single-time, accurate, quick and stable forming of the electric motor fusiform coil is realized through a reasonable design of the program behavior. And a high-efficient, stable, and single-time forming can be achieved by the device in the present invention.

Description

technical field [0001] The invention relates to an expanding method and an expanding device for a motor coil, in particular to a one-time automatic forming method for a motor coil and special equipment thereof. Background technique [0002] Motor coil expansion is a key process in the motor manufacturing process. It is the process of expanding the semi-finished motor coil wound into a shuttle shape to achieve a shape that matches the motor stator and rotor. Usually, three-dimensional space is required. Sizing processing, such as the shuttle-shaped coil made of closed-ended hard winding of the motor is a planar coil, which needs to be processed into a three-dimensional shape that matches the motor stator. During processing, the coil must be stretched in the XZ plane. The coil end is raised in the XY plane, and the coil is twisted in the ZY plane, which puts higher requirements on the design of the coil expansion action program. At present, there is no one-time high-efficiency...

AI Technical Summary

Problems solved by technology

[0002] Motor coil expansion is a key process in the motor manufacturing process. It is the process of expanding the semi-finished motor coil wound into a shuttle shape to achieve a shape that matches the motor stator and rotor. Usually, three-dimensional space is required. Sizing processing, such as the shuttle-shaped coil made of closed-ended hard winding of the motor is a planar coil, which needs to be processed into a three-dimensional shape that matches the motor stator. During processing, the coil must be stretched in the XZ plane. The coil end is raised in the XY plane, and the coil is twisted in the ZY plane, which puts higher requirements on the design of the coil expansion action program. At present, there is no one-time high-efficiency and precise machining of the shuttle. According to reports on the coil method, it is usually processed and formed step by step, and then replicated with a mold. The process is complicated, the accuracy is not high, and the coil is easy to be damaged during the profiling process.

Existing coil expansion equipment generally includes a driving part and a mechanical part. Most of the driving part adopts a hybrid driving method of hydraulic pressure and servo motor. Because the degree of automation and precision of hydraulic transmission is relatively low, the mechanical composition is relatively simple, which greatly limits The automation level and functional diversification of the coil expansion equipment cannot complete the complex movement in the three-dimensional space, and the shaping in the above-mentioned three-dimensional space cannot be automatically completed on the same equipment, which increases the production steps and processing costs.

At the same time, this type of equipment needs to be equipped with a hydraulic station, which is complicated to maintain and expensive to use.

To sum up, the prior art does not provide a method and equipment that can accurately and quickly complete the one-time molding of various types of motor coils, especially no method and equipment for one-time molding of shuttle-shaped coils made of hard winding closed-end winding

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