Apparatus and method for manufacturing weight balancing core of motor with at least two materials laminated

Abstract

A manufacturing device of a weight balancing core of a motor according to the present invention is made of: a base material steel sheet which is sequentially supplied to an upper side of a die of a lower mold by one pitch at a time and is punched with first and second base materials; a first punch which is installed on an upper mold and forms an exclusive borehole of the first base material on the base material steel sheet; a second punch which is installed on one side of the first punch and punches an outer circumference part which is a size differential portion of the first and second base materials; a fourth punch which is installed on one side of the second punch and forms a common borehole of the first and second base materials; a fifth punch which is installed on one side of the fourth punch and forms embossing of the first and second base materials; a blanking punch which is installed on one side of the fifth punch and shears the first and second base materials; and a schedule ring which is installed on a lower side of the die of the lower mold corresponding to the blanking punch and has an internal diameter in which the first base material is inserted.

Description

technical field [0001] The present invention relates to a device and method for manufacturing a motor weight balance core. Specifically, the present invention relates to an invention of how to install equipment with large differences in size and shape in the same motor and keep it balanced. Background technique [0002] In general, a rotor of a motor may have a deviation in its weight due to its high-speed rotation. Therefore, weight balancers are used on the upper and lower parts of the rotor to correct this deviation. [0003] Conventional techniques for motor weight balancing are generally Korean Patent Nos. 10-1083699 and 10-0645124. Conventional weight balancers are made of brass, but recently, due to the rise in the price of brass, stainless steel films are also used instead. [0004] However, considering various environments and the high-speed rotation characteristics of the rotor, it is possible to use a weight balance core with two or more composite materials. A...

AI Technical Summary

Problems solved by technology

Although adhesives or rivets can be used in this case to combine it with the rotor core, due to the extremely complex manufacturing process and the unpredictable changes in the physical characteristics of the rotor when rotating at high speeds, the application of laminated Although there is a possibility of success in making thin steel plates, there are still technical difficulties in using more than two composite materials.

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