A commutator floating reaming machine

Abstract

The invention relates to a floating reaming machine of a commutator. The reaming machine comprises a reaming base, a product base and a power head base, wherein the product base is rotationally mounted on the upper end surface of the hole reaming base, and a center through hole is formed in the product base; a product is freely placed in the product base, the power head base is mounted on the reaming base one side of the product base, and a pressing air cylinder is mounted in the middle of the power head base at the position on the same side as the product base; the lower end of a pressing rod of the pressing air cylinder is connected with a movable pressing bracket to control the movable pressing bracket to slide up and down; an indexing pressing plate is mounted in a through hole which is formed in the front end of the movable pressing bracket, and the through hole is coaxial with the center of the product base; a groove matched with a hook pin at the upper end of the product is formed in the indexing pressing plate; when the indexing pressing plate moves downwards, the hook pin of the product is embedded into the corresponding groove; a power head sliding up to down along the power head base is mounted right above the indexing pressing plate. The reaming machine has the characteristics of simple structure, convenience in operation, high machining speed of the commutator and the like.

Description

technical field [0001] The invention relates to the field of reaming machine manufacturing, in particular to a commutator floating reaming machine. Background technique [0002] A general reaming machine clamps the part to be reamed with a fixture, and then reams the middle part of the part through a reamer. The extrusion force on the part is very large during processing, which will damage the outer periphery of the part, and the replacement When the commutator is reamed, this damage will greatly affect the quality of the commutator, so that the commutator cannot match the motor casing. The processed commutator is a full-plastic commutator. The outer wall of the commutator is relatively thin, so the whole product will be deformed when the product is clamped. When the reamer finishes processing the product, it withdraws from the product. The roundness of the inner hole of the product changes, resulting in poor inner hole of the product, and the problem that the product is ca...

AI Technical Summary

Problems solved by technology

[0002] A general reaming machine clamps the part to be reamed with a fixture, and then reams the middle part of the part through a reamer. The extrusion force on the part is very large during processing, which will damage the outer periphery of the part, and the replacement When the commutator is reamed, this damage will greatly affect the quality of the commutator, so that the commutator cannot match the motor casing. The processed commutator is a full-plastic commutator. The outer wall of the commutator is relatively thin, so the whole product will be deformed when the product is clamped. When the reamer finishes processing the product, it withdraws from the product. The roundness of the inner hole of the product changes, resulting in poor inner hole of the product, and the problem that the product is clamped and cannot be taken out. At the same time, the concentricity of the inner hole and the outer circle is also affected.

[0003] The patent No. is the reaming machine described in 2013200496756. The reaming machine described in this patent is generally used in the reaming of some steel parts. Because the strength of steel parts is very high, the reaming machine can exert certain pressure on the product. The clamping force can not only ensure that the product is reamed, but also ensure that the product is not damaged, but this kind of reaming machine cannot be used in the commutator reaming work, because this kind of reaming machine will be damaged due to excessive clamping force. Large enough to damage the structure of the commutator

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