A fast polishing device

Abstract

The invention relates to a quick polishing device, which is used for grinding cylinders and comprises a main rod, grinding branches and grinding heads. The grinding branches are obliquely formed on the main rod in an axially staggered manner, and the grinding heads are disposed at ends of the grinding branches and are grinding head bodies capable of rotating along the grinding branches. The grinding branches are structurally designed into staggered oblique forms, accordingly, staggered oil storage pits are formed in an inner cavity of a cylinder liner conveniently, and the purpose of lubricating when a piston moves left and right is achieved. In addition, rotating sleeves are disposed on the grinding heads, accordingly, grinding grooves formed when the grinding heads are used for grinding are crescent, and the service lives of the grinding heads are prolonged. Furthermore, as the grooves are disposed on the grinding heads, the grinding heads are sharp when used for grinding. Besides, due to the reasonable structure and the crescent oil storage pits which are formed on the surface of the cylinder liner after the cylinder liner is ground, the quality of the cylinder liner is remarkably improved, and service performances of the cylinder liner are enhanced.

Description

technical field [0001] The invention relates to a grinding tool, in particular to a quick grinding device for quick grinding of a cylinder block. Background technique [0002] After retrieving relevant patent documents, a kind of fast polishing device with the same structure as the present invention has not been retrieved yet. Existing machining of automobile engines and internal combustion engine cylinders is generally done by grinding after machining to meet the precision requirements for the surface. When the grinding wheel is grinding, a part of the grinding dust particles of the grinding wheel are extruded on the inner surface of the cylinder, so that after a period of use, the abrasive particles will gradually fall off, thereby aggravating the wear between the cylinder liner and the piston. Although it has been seen that flexible grinding is used to process the cylinder liner, it can form a microscopic surface oil storage pit on the surface of the cylinder liner to ac...

AI Technical Summary

Problems solved by technology

Although it has been seen that flexible grinding is used to process the cylinder liner, it can form a microscopic surface oil storage pit on the surface of the cylinder liner to achieve the purpose of oil storage and reduce the wear between the cylinder liner and the piston. During the grinding process, the grinding head and the interior of the cylinder liner are still in a kind of hard grinding, so that the abrasive particles generated during grinding exist on the surface of the cylinder liner, and because the formed oil storage tank is in a continuous state, the oil storage effect is still not good. to achieve the desired effect

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