Self-pressurized lubrication drilling machine

Abstract

The invention provides a self-pressurizing lubricating type drilling machine. The machine comprises a vertical rotating shaft which is connected to a power mechanism of the drilling machine, wherein aliquid feeding block which wraps the outer part of the rotating shaft is assembled on the rotating shaft; an upper liquid chamber and a lower liquid chamber which annularly wrap the rotating shaft from top to bottom are designed in the liquid feeding block; centrifugal blades which are coaxially assembled on the rotating shaft are designed in the lower liquid chamber, and the centers of the centrifugal blades communicate with the upper liquid chamber; outer rings of the centrifugal blades communicate with the inner part of the lower liquid chamber; a shaft hole is processed in the lower axisof the rotating shaft; the upper part of the shaft hole communicates with the lower liquid chamber through a side hole; a liquid feeding hole is processed in an axis of a drill bit and communicates with the upper part of a drill bit; the lower part of the liquid feeding hole communicates with the outer side of the lower part of the drill bit through a liquid draining hole; the liquid feeding holecoaxially communicates with the shaft hole. According to the device, the drill bit cooling effect and the sweeps discharging effect are improved.

Description

technical field [0001] The invention belongs to the technical field of mechanical processing, and in particular relates to a self-pressurized lubricating drilling machine. Background technique [0002] Drilling machines are usually used to drill holes in solid materials. During the drilling process of the drilling machine, especially in the process of metal processing, the drilling process will generate a lot of heat. Therefore, during the drilling process, The drilling position needs to be cooled, and traditional machining usually completes the cooling process by injecting coolant on the outside of the drill bit. However, when drilling, because the drill bit needs to continuously remove chips outward, it is difficult for the coolant to enter the lower part of the drill bit that generates the most heat, which greatly affects the cooling effect of the drill bit. The heating of the drill bit is usually an important reason for the short service life of the drill bit. At the sa...

AI Technical Summary

Problems solved by technology

However, during drilling, because the drill bit needs to continuously discharge chips outward, it is difficult for the coolant to enter the lower part of the drill bit that generates the most heat, which greatly affects the cooling effect of the drill bit

The heating of the drill bit is usually an important reason for the short service life of the drill bit. At the same time, the chip removal process is usually discharged from the lower tip of the drill bit to the upper root. When the traditional coolant is injected into the drilling position, the coolant is usually injected into the The upper part of the drill hole is close to the root of the drill bit, so that the coolant infiltrates from the upper part of the drill hole to the tip of the drill bit at the lower part of the drill hole, so that the direction of coolant infiltration is opposite to the direction of chip removal, so that the injection of coolant during drilling will hinder the flow of waste chips Discharge, affecting chip removal effect

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