Drill bushing used for high-precision drilling and convenient for chip removal

Abstract

The invention provides a drill bushing used for high-precision drilling and convenient for chip removal. A through hole is formed in the center of a common cylindrical piece; three vector-shaped grooves with different angles are respectively cut by a machining method along a peripheral direction, and three wedge-shaped bodies, namely one large wedge-shaped body and two small wedge-shaped bodies, are remained; each wedge-shaped body is composed of a drill bushing top end (2) with a large rectangular section, a drill bushing bottom end (4) with a small rectangular section and an annular groove (5) arranged between the drill bushing top end and the drill bushing bottom end; and a step face (3) is formed on the lower part of the drill bushing top of the large wedge-shaped body and is used for fixing the drill bushing. The drill bushing provided by the invention is simple in structure, convenient to clamping and detaching and convenient for chip removal, and can be used for solving the problems that the rotating precision of a cutter is low in a drilling process so as to easily result in the phenomenon that the cutter is clamped, thereby realizing the high-precision rotation of the cutter in the drilling process and the machining of a high-precision hole. The drill bushing used for high-precision drilling and convenient for chip removal has good practical values and wide application prospects in the technical field of a mechanical manufacturing and machining tool.

Description

technical field [0001] The invention relates to a process equipment based on the drilling process, in particular to a drill sleeve for high-precision drilling that is convenient for chip removal. Drill bushing for tool drilling process. The present invention can effectively and conveniently remove large and continuous chips in the drilling process, the acceptable gap between the drill bit and the drill sleeve is smaller, the radial swing of the drill bit is smaller, and the axial feed accuracy of the drill bit is higher. high. It belongs to the technical field of machinery manufacturing and processing tooling. Background technique [0002] In order to make the rotation accuracy of the drill bit higher in the drilling process, theoretically, the matching accuracy of the drill sleeve and the drill bit should be as high as possible; it is convenient for chip removal, and the drill bit can rotate and axially feed more smoothly without causing the tool to be stuck. ; And the s...

AI Technical Summary

Problems solved by technology

[0004] 1. Purpose: The purpose of this invention is to provide a drill sleeve for high-precision drilling that is convenient for chip removal. Low rotation accuracy and easy to cause the problem of tool jamming, which realizes the high-precision rotation of the tool and the processing of high-precision holes during drilling

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