Manufacturing method and trimming die for primary iron core disk of long primary linear electric motor

Abstract

The invention provides a manufacturing method and trimming die for a primary iron core disk of a long primary linear electric motor. The method is characterized in that a continuously automatic notching blanking mode is adopted to place a multislot of the primary iron core disk of the long primary linear electric motor in a high-speed punch press, and dies on the high-speed punch press are utilized to finish a blank operation in the continuously automatic blanking mode; each punching motion cycle of the punching dies on the high-speed punch press is only used for finishing one to two opened inserted line slots and punching one to two groups of pilot holes or other cavities at the same time; and all the opened inserted line slots and pilot holes or other cavities on the primary iron core disk of the long primary linear electric motor meet a blank procedure requirement step by step by using a plurality of circularly and continuously automatic blanking procedures which are set. The trimming die comprises an upper die and a lower die, wherein a fixed plate of the upper die is provided with punching inserted line slot punches, more than two pilot hole punches and one or two auxiliary hole punches, and the punching inserted line slot punches are floating punches; an upper die plate is provided with pulling trays which can slide on the tops of the punching inserted line slot punches.

Description

technical field [0001] The invention relates to a method and a device for manufacturing a motor part, in particular to a method and a device for manufacturing a primary iron core sheet of a long primary linear motor for an urban rail vehicle. It is mainly used for the manufacture of primary iron core punching sheets of long primary linear traction motors for urban rail vehicles. Background technique [0002] The linear motor subway vehicle is one of the most advanced urban rail vehicles in the world today. It is named after the linear motor traction technology. When the vehicle is running, the electromagnetic force generated between the primary pole of the linear motor and the secondary induction plate is used as the traction force or electric braking force of the train, which has nothing to do with the adhesion between the wheels and rails. Compared with the traditional rotary motor subway vehicle, the linear motor subway vehicle It is a subway vehicle with non-adhesive dr...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to overcome the disadvantages of the existing commonly used compound punching method, which requires high-power equipment, large-volume molds, and low production efficiency, and at the same time, in order to overcome the disadvantages of the high processing cost of numerical control equipment and the difficulty in ensuring product quality, it provides A new long primary linear motor primary core sheet manufacturing method; under the premise of guaranteed product quality, the method has the advantages of universal equipment, simple mold structure, accurate positioning, convenient operation, high production efficiency, stable product quality, and low production cost. low and suitable for mass production

Images