Pneumatic boring mill grinding device

Abstract

The invention provides a pneumatic boring mill grinding device. The pneumatic boring mill grinding device comprises a boring mill body, a flat spin chuck, an inflowing air distribution assembly, a rotation limiting assembly and a pneumatic grinding assembly, wherein the inflowing air distribution assembly comprises an inner air inlet disc, an outer air inlet ring, a first air inlet pipe and a second air inlet pipe, the inner air inlet disc is connected with the flat spin chuck, the outer air inlet ring is rotatably connected with the outer side of the inner air inlet disc in a sleeving mode, air inlet grooves are formed in the inner wall of the outer air inlet ring and / or the outer wall of the inner air inlet disc, the air inlet grooves and the inner wall of the outer air inlet ring and / orthe outer wall of the inner air inlet disc form an air inlet cavity in an enclosing mode, the first air inlet pipe is arranged on the outer air inlet ring and communicates with the air inlet cavity,the second air inlet pipe is arranged on the inner air inlet disc, and an air inlet end of the second air inlet pipe communicates with the air inlet cavity. The flat spin chuck drives the inner air inlet disc to rotate so as to enable the pneumatic grinding assembly connected onto the inner air inlet disc to rotate along the hole wall of an inner hole in a workpiece, and the pneumatic grinding assembly revolves on its axis under pneumatic drive, and therefore grinding processing for the workpiece is achieved, processing accuracy is high, safety risk is reduced, and grinding processing efficiency is improved.

Description

technical field [0001] The invention relates to the technical field of grinding equipment, in particular to a grinding device for a pneumatic boring machine. Background technique [0002] A boring machine is mainly a machine tool that uses a boring tool to bore a hole on a workpiece. Usually, the rotation of the boring tool is the main motion, and the movement of the boring tool or the workpiece is the feed motion. Its processing accuracy and surface quality are higher than those of drilling machines. The boring machine is the main equipment for processing large box parts. However, the existing boring machines have limited machining accuracy and surface roughness after machining, and cannot meet the requirements for machining accuracy and surface roughness in special cases. [0003] In the prior art, a grinding device for a boring machine is provided, which grinds the surface of a workpiece by installing a motor and a grinding wheel on the flat rotating disk of the boring ...

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Problems solved by technology

[0004] Based on this, it is necessary to address the technical problems of high safety risks and low processing efficiency when the grinding wheel is driven by electric means to grind the surface of the workpiece in the prior art, and to provide a low safety risk and high processing efficiency. Pneumatic boring machine grinding device

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