AUTOMATIC REFUELLING THIMBLE

The utility model relates to an automatic fuelling thimble which is arranged on a lathe tailstock and is suitable for the metal cutting processing of mechanical processing. A small oil tank or a small oil hole which is arranged on the 60 DEG inclined plane of the automatic fuelling thimble is communicated with a grease cup arranged at the head part of the thimble. When a work piece rotates to generate heat, oil on the grease cup of the thimble is melted. Oil flows into a central hole of the work piece through the oil tank or the small oil hole to achieve the automatic fuelling purpose. A thimble tip and a thimble body are matched with each other tightly. The center lines of the thimble tip and the thimble body are required to be concentric. The dimensions of the oil tank of the thimble tip or the small oil hole need to be proper, and the positions thereof need to be correct. The taper of the thimble is matched with the taper hole of the lathe tailstock.