A grease lubricated spindle

Abstract

The invention relates to the field of grease lubrication spindles, in particular to a grease lubrication spindle. The grease lubrication spindle comprises a base, a rubber plug, a gear, a sleeve, a spindle structure, a clamping structure, a bearing, a dust cleaning structure and a limiting structure. A driving ring and a stop block are fixed through the limiting structure. The driving ring is limited through centrifugal force generated during rotating of the spindle structure and the stable state of the limiting structure. When the spindle structure stops emergently, the limiting structure drives the driving ring to be separated from the stop block under the inertia effect so that the clamping structure cannot clamp a workpiece, the spindle structure can rotate continuously, and then the situation that a cutting tool and a motor of the cutting tool are damaged due to emergent stop of the spindle structure is effectively prevented. Through the dust cleaning structure, the limiting structure is more stable under the condition of normal rotation of the spindle structure. The limiting structure disperses air flow to effectively prevent the situation that cut scraps are splashed due toexcessive wind power caused by high-speed rotation of the spindle structure. Accordingly, the dust cleaning quality is greatly improved.

Description

technical field

[0001] The invention relates to the field of grease lubricated spindles, in particular to a grease lubricated spindle. Background technique

[0002] The main shaft refers to the shaft that receives power from the engine or motor and transmits it to other parts. The main shaft of the machine tool refers to the shaft that drives the workpiece or tool to rotate on the machine tool. It is usually composed of the main shaft, bearings and transmission parts (gears or pulleys). Spindle components are mainly used to support transmission parts such as gears and pulleys in machines to transmit motion and torque, such as machine tool spindles; some are used to clamp workpieces.

[0003] However, when the main shaft in the lathe clamps workpieces with different sizes and cylindrical structures, it is easy to cause uneven force on the workpiece, resulting in deep indentations on the surface of the workpiece with poor hardness, and waste chips are easy to enter during the ...

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