Pin pressing device for commutator

Abstract

The invention provides a pin pressing device for a commutator, belongs to the technical field of commutator equipment and solve the problem of poor extrusion effect of an existing pin pressing device for the commutator. The pin pressing device for the commutator comprises a base body, a lower mould which is arranged on the base body and is used for mounting the commutator and an upper mould which is matched with the lower mould; the upper mould comprises a pressing cylinder and a connecting shaft; the lower mould comprises a mould core and a plurality of mould plates which uniformly encircle the periphery of the mould core; a gap is formed among the mould plates; when the commutator is arranged on the lower mould, hook pins of the commutator are clamped in the gap, and the upper mould moves downwards to enable the mould plates to be close to the mould core in a radial direction and to extrude the hook pins to be in a boss shape. The pin pressing device for the commutator has the advantages of good extrusion effect and capability of preventing the hook pins of the commutator from being broken.

Description

technical field [0001] The invention belongs to the technical field of commutator equipment, and relates to a presser foot device for a commutator. Background technique [0002] At present, there are many types of commutators used for motor armatures, such as slot-type commutators, hook-type commutators, K-type commutators, etc., each commutator includes a commutator base and a Multiple commutator segments on the base body. One end of the hook-type commutator is provided with a hook foot. The processing method of the hook foot in the prior art generally adopts a bending machine for direct bending, resulting in the outward protrusion of the bending part on the hook foot, and the bending part The lateral width is greater than that of the commutator segment. During the winding process of the commutator, the protrusions will cause the coil to break, and even cause frequent breakage at the bend of the hook foot. Contents of the invention [0003] The object of the present inv...

AI Technical Summary

Problems solved by technology

One end of the hook-type commutator is provided with a hook foot. The processing method of the hook foot in the prior art generally adopts a bending machine for direct bending, resulting in a protrusion formed at the bend on the hook foot, and the bend at the bend The lateral width is larger than the lateral width of the commutator segment. During the winding process of the commutator, the protrusions will cause the coil to break, and even cause frequent breakage at the bend of the hook foot.

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