Iron casting drilling device and drilling method thereof under inner cooling and low temperature trace lubricating condition

Abstract

The invention provides an iron casting drilling method under an inner cooling and low temperature trace lubricating condition. An iron casting drilling device comprises an oil mist generating component, a machine tool spindle and a cutter; the oil mist generating component comprises a gas supplying part and an atomizing device; the atomizing device comprises a gas inlet and a gas outlet, and the gas supplying part is connected to the atomizing device by a pipeline by the gas inlet; the low temperature compressed gas supplying part refers to a gas cooling device or direct charging of low temperature gas; the machine tool spindle is provided with a spindle inner cooling hole along an axial direction, and the spindle inner cooling hole is communicated with the gas outlet; the cutter is fixedly connected to the machine tool spindle and is provided with a cutter inner cooling hole along the axial direction; the cutter inner cooling hole is communicated with the spindle inner cooling hole, acutting edge of the cutter is provided with a plurality of cutter inner cooling outlets, and the cutter inner cooling outlets are communicated with the cutter inner cooling hole. The iron casting drilling device adopts an inner cooling manner for processing, and is good in lubricating effect, good in cooling effect and fast in chip removal.

Description

technical field [0001] The invention relates to the field of metal substrate processing, in particular to a cast iron drilling device and a drilling method thereof under the condition of internal cooling and low-temperature micro-lubrication. Background technique [0002] Cast iron is gradually being widely used due to its excellent tensile strength, fatigue resistance, elastic modulus and wear resistance, as well as excellent casting performance and thermal conductivity. The excellent performance of cast iron ensures that it can maintain sufficient strength at high temperatures. [0003] The excellent physical properties of cast iron make its machining performance even worse. In the process of cast iron processing, the cutting force required by the machine tool and the cutting force received by the tool are relatively large; the cutting temperature is high during the cutting process of cast iron materials, and the cutting heat is more likely to accumulate during the proces...

AI Technical Summary

Problems solved by technology

[0006] Although the external cooling micro-lubrication technology is better than the traditional pouring cooling and lubrication effect, in deep hole machining, the external cooling micro-lubrication technology still has the problem that the cutting oil is difficult to reach the cutting part, the lubrication effect is not good, and the cooling effect is not good.

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