Universal slot punching mold base for round stator and rotor laminations

Abstract

The invention provides a universal slot punching mold base for round stator and rotor laminations. The cutting edge part of a mold can be accurately reset to ensure that the position of a punched slot is accurate and invariable when a cutting edge is sharpened. The universal slot punching mold base comprises an upper template and a female mold holder which are vertically opposite to each other. The upper part of the female mold holder is provided with a female mold cavity for arranging a female mold. The lower part of the upper template is provided with a conductor plate capable of sliding upand down relative to the upper template. Rubber is arranged between the upper part of the conductor plate and the lower part of the upper template. The lower part of the upper template is provided with a connecting part for connecting a male mold fixing part. A male mold hole for passing through a male mold connected to the male mold fixing plate is formed on the conductor plate. The upper part of the upper template is connected with a wedge for fit between the outer bottom circle of a cylindrical guide handle connected with a sliding block of a slot puncher and an inner hole on the wedge. A directional key is fixed on the upper part of the inner hole of the wedge, fitted with a directional slot on the bottom surface of the guide handle and extended along the radial direction of the cylindrical guide handle. A connecting structure for connecting the slot puncher is arranged on the wedge.

Description

technical field [0001] The invention relates to a general mold base for punching grooves of a full-circle stator and rotor, in particular to a general mold base for punching grooves of a full-circle stator and rotor with high precision reset and guidance. Background technique [0002] The stator and rotor cores of wind turbines and asynchronous motors are important components. The manufacturing quality of the iron core has always been one of the important symbols to measure the level of motor manufacturing technology. One of the important factors affecting the quality of core manufacturing is the quality of punching. Most of the notching processes for round stator and rotor punching of medium-sized motors are performed on a special notching machine for single-type notching, and single-type notching is likely to cause errors in the position of the groove shape, resulting in The groove shape of the iron core and the inner and outer circles are not neat enough, and the qualit...

AI Technical Summary

Problems solved by technology

[0005] 2. Simple punching die structure, convex and concave dies without accurate sharpening reset device

[0006] 3. Simple punching die structure, no guiding device, and the convex and concave dies are not connected as a whole, so it is difficult to accurately reset the cutting edge during punching

When the precision of the notching machine is poor, the life of the die will be significantly reduced

[0007] With the improvement of precision requirements for punching and stamping of full-circle motors (especially the stator punching and groove separation process and the rotor punching and groove cutting outer circle process have very high requirements for groove shape and inner and outer circle accuracy), the traditional The simple punching die structure can no longer meet the requirements of actual production

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