A fine-tuning type blind hole grinding tool and method

Abstract

The invention discloses a fine adjustment blind hole grinding tool. The fine adjustment blind hole grinding tool comprises a grinding module and a positioning module; the grinding module comprises a bearing sleeve; an axis through hole of the bearing sleeve coaxially communicates with a workpiece step hole; a positioning shaft sleeve is arranged in a circular groove at the outer end of the bearingsleeve; a mandrel is commonly inserted in the axis through hole of the bearing sleeve and an inner hole of the positioning shaft sleeve; a fine adjustment pull rod is sleeved in an inner cavity of the mandrel; two ends of the fine adjustment pull rod extend out of the inner cavity of the mandrel; a fine adjustment nut sleeves the inner end of the mandrel; a grinding head sleeves the conical peripheral surface at the inner end of the mandrel; the inner end of the fine adjustment pull rod is corresponding to the flat part of the fine adjustment nut; the outer end of the fine adjustment pull rodextends out of the mandrel, and a handle is transversely mounted; a positioning screw is mounted between the fine adjustment pull rod and the mandrel; and a strengthening rod is mounted at the outerend of the mandrel. The invention further discloses a fine adjustment blind hole grinding method. The tool and the method are simple in structure and convenient to use.

Description

technical field [0001] The invention belongs to the technical field of mechanical manufacturing, and relates to a fine-tuning blind hole grinding tool, and also relates to a fine-tuning blind hole grinding method. Background technique [0002] In valve body parts, there are often some deep inner holes or stepped holes in blind holes for installing air-tight parts, and there are usually high requirements for the size and surface quality of these stepped holes. The surface roughness of the conventional step hole used for air sealing is required to be 0.4 μm, but due to its space limitation and blind hole, the surface quality processing technical requirements of the step hole cannot be guaranteed on the ordinary CNC boring and milling machine. Contents of the invention [0003] The purpose of the present invention is to provide a fine-tuning blind hole grinding tool, which solves the problem that conventional processing equipment cannot guarantee the surface accuracy required...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a fine-tuning blind hole grinding tool, which solves the problem that conventional processing equipment cannot guarantee the surface accuracy required for stepped holes, resulting in a decline in product quality

[0004] Another object of the present invention is to provide a fine-tuning blind hole grinding method, which solves the problem that conventional processing equipment cannot guarantee the surface accuracy required for stepped holes, resulting in a decline in product quality

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