A hand-held engine cavity shell grinding machine

Abstract

A hand-held engine cavity shell grinding machine relates to the technical field of engine cavity shell grinding tools, and comprises a grinding mechanism with a flat and long rotation track. The invention solves the problem of removing burrs and sand on the surface of the cavity shell in the traditional technology, but ignores the irregular shape of the cavity shell, so that the holes and grooves need to be polished with files; the polished The burrs and sand are easy to adhere to other surfaces of the chamber shell again and scratch them; and the polished burrs and sand are easy to adhere to the grinding wheel, and the burrs and sand are easy to cause damage to the surface of the chamber shell due to the grinding wheel. The problem of secondary scratches.

Description

technical field [0001] The invention relates to the technical field of engine cavity shell grinding tools, in particular to a hand-held engine cavity shell grinder. Background technique [0002] An engine is a machine that can convert other forms of energy into mechanical energy, including internal combustion engines (gasoline engines, etc.), external combustion engines (Stirling engines, steam engines, etc.), electric motors, etc. For example, internal combustion engines usually convert chemical energy into mechanical energy. The engine is not only applicable to the power generating device, but also refers to the whole machine including the power device. [0003] The cavity shell of the engine is used as the carrier of the entire engine assembly. When the engine is produced, the relevant parts are assembled through the cavity shell. When the engine cavity shell is manufactured, most of them are casted. The raw material is poured into the sand mold for casting and forming,...

AI Technical Summary

Problems solved by technology

[0007] First, when using the abrasive tool to grind the burrs of the cavity shell, it is limited by the high-speed rotating grinding wheel, so that the polished burrs and sand are easy to adhere to other surfaces of the cavity shell, making it easy to clean the cavity. The surface of the shell causes secondary scratches, and it is not convenient to clean the adhered burrs and sand, which increases the output of labor, and the high-speed rotating grinding wheel makes it easy for the thrown burrs and sand to make the surrounding The working environment becomes turbid, affecting the processing and use of operators

[0008] Second, there are many passages and even grooves in the cavity shell, which makes it impossible for the grinding wheel to enter the space, and it is not convenient to polish the inner surface, making it impossible to polish such positions. The operator uses the file for surface treatment in the later stage, which greatly reduces the work efficiency and prolongs the working time

[0009] Third, after the grinding wheel grinds the surface of the cavity shell for a long time, the burrs and sand after grinding tend to adhere to between the brushes of the grinding wheel, which makes it easy to limit the displacement between the brushes over time, thereby reducing the The grinding quality of the brush on the cavity shell is improved, and the burrs and sand adhering to the brush are easy to have secondary contact with the surface of the cavity shell when the grinding wheel rotates at high speed, causing friction and scratches on the surface

[0010] The above are the problems encountered by the operator in the process of taking out the cavity shell. Among them, the R&D personnel focus on how to remove the burrs and sand on the surface of the cavity shell, but ignore the irregular shape of the cavity shell. The holes and grooves need to be polished with files; the burrs and sand after grinding are easy to adhere to other surfaces of the cavity shell and scratch them; and the burrs and sand after grinding are easy to adhere to the grinding wheel On the surface, due to the grinding wheel, the burrs and sand are easy to cause secondary scratches on the surface of the cavity shell

[0011] As can be seen from the above, there are obviously inconveniences and defects in the actual use of the prior art, so it is necessary to improve

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