Finishing machine

Abstract

The invention relates to the technical field of oil-containing bearing processing, in particular to a finishing machine. The finishing machine comprises a machine body, a lower core rod drive device and an upper core rod drive device, wherein the lower drive device is fixedly connected to the bottom of the front surface of the machine body; the upper drive device is fixedly connected to the top ofthe front surface of the machine body; the lower core rod drive device comprises a gas cylinder plate; the two sides of the bottom of the gas cylinder plate are fixedly connected to first gas cylinders; the tops of piston rods on the first gas cylinders are fixedly connected to a fixed plate; a height limiting rod is movably connected between the gas cylinder plate and the fixed plate; and the two sides inside the fixed plate are embedded with copper sleeves. A lower core rod in the finishing machine can support an oil-containing bearing, and limits an inner diameter dimension, and an upper core rod can extrude the oil-containing bearing, so that mechanical strength of the oil-containing bearing can be improved; extrusion force acting on the top of the oil-containing bearing enables the middle part of an oil-containing bearing inner hole to slightly deform to be in the shape of a circular arc, so that amount of wetting lubricating oil contained in the oil-containing bearing can be increased, and the service life can be prolonged.

Description

technical field [0001] The invention relates to the technical field of oil-impregnated bearing processing, in particular to a finishing machine. Background technique [0002] Oil-impregnated bearings, that is, porous bearings, use metal powder as the main raw material. Oil-impregnated bearings are sintered bodies made by powder metallurgy. They are inherently porous, and have the ability to freely adjust the number, size, and It has technical advantages such as shape and distribution, and has the characteristics of low cost, vibration absorption, low noise, and no need to add lubricating oil during a long working time. It is especially suitable for working environments that are not easy to lubricate or do not allow oil to be dirty. [0003] At present, the inner hole of powder metallurgy oil bearing is mostly processed by lathe, drilling machine, extrusion, etc. The extrusion head of the punch press directly exerts pressure on the material to make it plastically deform and o...

AI Technical Summary

Problems solved by technology

[0005] Aiming at the deficiencies of the prior art, the present invention provides a finishing machine, which has the advantage of increasing the impregnation amount, and solves the problem that the dimensions of the inner holes of the oil-impregnated bearings processed at present are the same, so that the amount of lubricating oil impregnated in the oil-impregnated bearings is relatively small. less, reducing the service life of the oil-impregnated bearing

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