Self-suction internally-cooled cutter

Abstract

The invention discloses a self-suction internally-cooled cutter which comprises a connection part, a size adjusting device, a central spindle, a retaining sleeve and a needle roller, wherein the connection part can be matched with a machine tool; the needle roller is mounted in a rolling groove at the front end of the retaining sleeve; the connection part and the central spindle are provided with cooling liquid channels communicated with the rolling groove; the connection part is matched with a gear pump; the gear pump comprises an upper cover, a lower cover and a spiral worm wheel, wherein the upper cover and the lower cover are covered together and matched in a sealed manner; the spiral worm wheel is arranged in a working cavity formed by covering the upper cover and the lower cover; the spiral worm wheel is fixedly matched with the connection part and can freely rotate relative to the working cavity; the gear pump is provided with a cooling liquid inlet and a liquid discharge port which are communicated with the working cavity; and the liquid discharge port is communicated with the cooling liquid channels. The cutter has the characteristics of good cooling effect, stable performance and the like and is suitable for the roll finishing of the outer circles of shaft parts to achieve the aim of clear finishing.

Description

technical field [0001] The invention relates to the technical field of mechanical processing, in particular to a rolling processing tool for the outer circle of shaft parts on a lathe, in particular to a self-priming internal cooling tool. Background technique [0002] In order to improve the fatigue and corrosion resistance of the workpiece, reduce the roughness of the metal surface, and process parts with mirror surface precision, people generally use the rolling process, which uses the cold plasticity characteristics of the metal at room temperature, and uses the rolling tool to process the workpiece. A certain pressure is applied on the surface to make the surface metal of the workpiece produce plastic flow, so as to achieve the purpose of smooth correction. Rolling is a non-cutting plastic processing method, so this method can achieve two purposes of finishing and strengthening at the same time. What grinding and turning cannot do. Because the workpiece will generate a...

AI Technical Summary

Problems solved by technology

In order to solve the problem of cooling and lubrication, people adopt the method of spraying coolant on the surface of the workpiece, but this method will cause the coolant to splash due to the centrifugal force generated by the high-speed rotation of the rolling tool, resulting in poor cooling effect, and the coolant needs to be added The power liquid supply system not only increases the difficulty of operation and the cost of product manufacturing, but also increases the volume of the equipment, so it is not ideal

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