Small S bend forming tool for lead pin of armature coil

Abstract

The invention discloses a small S bend forming tool for a lead pin of an armature coil. A female die combination and a male die combination are arranged on a fixed die holder; the male die combinationslides along a track through a sliding die holder; the female die combination is arranged in a corresponding position; and when the lower-layer lead pin of the armature coil penetrates through a limiting and anti-deformation block to extend into a partition plate of the female die combination to be tightly attached to a female die core, a pressing machine is started to push the sliding die holderto drive a male die core of the male die combination to be inserted in the partition plate of the female die combination, and the male die combination and the female die combination are combined to extrude the lead pin to be bent. The problems that during manual forming or simple tool forming, the shape is not in place, the position is not accurate to locate, and the position deviation between adjacent electromagnetic wires is relatively large can be avoided. By changing forming mode and method of the lead pin, the forming quality and efficiency of the lead pin of the coil are greatly improved, the risk of armature winding manufacturing and armature operation is reduced, and the quality problem of a motor armature is greatly reduced.

Description

technical field [0001] The invention relates to a small S-bend forming tool for an armature coil lead pin, in particular to an S-bend forming tool for a lead pin with a single-wave multi-turn armature coil structure wound by a square-section electromagnetic wire. It can be mainly applied to low-speed DC motors using single-wave multi-turn armature coils, etc., which require bending and forming of lead pins and magnet wires. Background technique [0002] The main advantage of the low-speed DC motor is that it can save the speed changer or the mechanical reversing mechanism, realize the direct drive of the equipment, and realize the high efficiency and energy saving effect of the direct drive. And its torque performance is good, the low-speed torque is large, the low-speed vibration is small, the starting current and operating current of the DC motor are small, and the overload capacity is strong, which reduces the system's moment of inertia, has a good dynamic response, impro...

AI Technical Summary

Problems solved by technology

It is because of these requirements that the manufacture of such armature coil lead pins is very troublesome and difficult at present.

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