Three-plate motor iron-core progressive die

Abstract

The invention discloses a three-plate motor iron-core progressive die. The three-plate motor iron-core progressive die comprises an upper die base, a discharging plate base and a lower die base matched with the upper die base. The upper die base is fixedly connected with a sliding block of a punching machine. The lower die base is fixed to the workbench surface of the punching machine. The discharging plate base is fixedly connected with the upper die base through a fixing member. The upper die base, the discharging plate base and the lower die base are sequentially arranged from top to bottom to form a three-plate structure. The upper die base is provided with a guiding device. The guiding device comprises a guide pillar, a first guide sleeve, a second guide sleeve, a first retaining ring and a second retaining ring. The upper portion of the guide pillar is fixedly connected with the upper die base. The lower portion of the guide pillar penetrates through the second guide sleeve and extents into the first guide sleeve. The first retaining ring is clamped between the first guide sleeve and the guide pillar. The first retaining ring is in interference fit with the first guide sleeve and the guide pillar through steel balls. The second retaining ring is clamped between the second guide sleeve and the guide pillar. The second retaining ring is in interference fit with the second guide sleeve and the guide pillar through steel balls. The three-plate motor iron-core progressive die has the beneficial effects that the punching precision is high; the gaps are even, and the service life of the progressive die is ensured.

Description

technical field [0001] The invention relates to a three-plate motor iron core progressive die. Background technique [0002] In the motor industry, the stator and rotor cores are important parts of the motor. The technical requirements and dimensional accuracy requirements of the stator and rotor cores are relatively high, and the production batches are relatively large. Generally, the motor cores are produced by automatic feeding and automatic stamping progressive dies, so the technical requirements and precision requirements for the motor core progressive dies are relatively high, and the main precision of the motor core progressive dies is reflected in the guide structure of the mould. On the device, that is, on the mold base of the progressive die, the mold base is the main structure of the progressive die, a complete mold, the mold base is indispensable, the existing structure cannot meet the accurate guidance, and all parts of the mold are usually passed through the in...

AI Technical Summary

Problems solved by technology

[0003] Aiming at the problem that the upper and lower dies of the current progressive die cannot maintain stable precision, which leads to unreasonable relative positions between the convex and concave dies during the stamping process, thereby shortening the service life, the invention proposes a guarantee for the upper die base and the unloading device When moving down, it has the correct relationship with the position of the lower die seat, and guides the correct movement of the upper punch of the progressive die, ensures the uniformity of the gap between the punch and the die during the stamping process and the guiding accuracy of the unloading device, and maintains its mold stably Three-plate motor iron core progressive die with stamping precision requirements and die life

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