Grinding wheel for grinding air valve and method for grinding air valve

Abstract

The invention discloses a grinding wheel for grinding an air valve and a method for grinding the air valve. The grinding wheel for grinding the air valve has an outer contour line which is adapted to the outer contour line, in the axial direction, of the air valve, the outer contour line of the grinding wheel is composed of a first line segment corresponding to the contour of an outer circle of an air valve disc, a second line segment corresponding to the contour of the outer conical surface of the air valve disc, a third line segment corresponding to the contour of the inner conical surface of the air valve disc, an arc-shaped line segment corresponding to the arc-shaped contour of the neck of the air valve and a fourth line segment corresponding to the contour of the neck of the air valve, the radius of the arc-shaped line segment of the outer contour line of the grinding wheel is smaller than that of the arc-shaped contour of the neck of the air valve, and the length of the second line segment of the outer contour line of the grinding wheel is larger than that of the contour of the outer conical surface of the air valve disc. When the grinding wheel is used for grinding the air valve, grinding of the air valve can be achieved through one-time clamping and one-time grinding, and thus both air valve machining efficiency and air valve machining quality are improved.

Description

technical field [0001] The invention belongs to surface processing equipment and methods, in particular to a grinding wheel for grinding valves and a method for grinding valves. Background technique [0002] In the grinding process of existing valves, the processing of the valve disc, neck contour surface and disc end face is divided into two processes. Among them, the end face of the valve disc is processed by turning, which is difficult to meet the processing accuracy requirements of high-end engines for the thickness of the valve disc. However, the processing of the valve disc and neck contour surface (including the outer circle of the valve disc, the inner and outer cone surfaces, and the arc surface) is mainly processed by ordinary grinding wheels, which has low processing efficiency, fast wear of the grinding wheel, and poor consistency of processing dimensions. Contents of the invention [0003] The purpose of the present invention is to solve the problems existing ...

AI Technical Summary

Problems solved by technology

[0002] In the grinding process of existing valves, the processing of the valve disc, neck contour surface and disc end face is divided into two processes, in which the end face of the valve disc is processed by turning, which is difficult to meet the processing accuracy requirements of high-end engines for the thickness of the valve disc

However, the processing of the valve disc and the contour surface of the neck (including the outer circle of the valve disc, the inner and outer cone surfaces, and the arc surface) is mainly processed by ordinary grinding wheels, which has low processing efficiency, fast wear of the grinding wheel, and poor consistency of processing dimensions.

Images