Male rivets dismantling bushings

Abstract

The invention belongs to a drilling hole machining technology, and relates to a bushing for disassembling a raised-head rivet. The bushing for disassembling the raised-head rivet consists of two parts, wherein one part is a fixing bushing which is matched with the shape of a rivet head, and the other part is a hole drilling bushing for guiding a drilling head to perpendicularly drill a hole along the center of the rivet hole; a penetrated step hole is formed in the center of the fixing bushing; the bottom of the step hole adopts an arc-shaped structure which is matched with the shape of the rivet head; and the hole drilling bushing is arranged in the step hole of the fixing bushing, and a center hole of the hole drilling bushing and the step hole of the fixing bushing are coaxial and penetrated. According to the bushing for disassembling the raised-head rivet disclosed by the invention, the drilling head can be conveniently aligned with and fixed in the center of the rivet hole, the situation that the drilling hole is perpendicular is guaranteed, fast and convenient disassembling of the rivet is realized, besides, graded hole drilling for disassembling the rivet can be realized by changing the bushings of different inner diameters, and the disassembling efficiency and the disassembling quality are improved.

Description

technical field [0001] The invention belongs to the drilling processing technology and relates to a disassembled bushing of a convex head rivet. Background technique [0002] During aircraft assembly and maintenance, unqualified rivets need to be disassembled and re-riveted. In the prior art, the drill bit is generally used to remove the material of the rivet head. However, the prior art cannot ensure the vertical part of the drill bit and fix the drill bit. Therefore, it is easy to cause the center of the drill hole to deviate from the center of the rivet hole, resulting in "∞" shaped holes or The parts are drilled, causing damage to the parts. Contents of the invention [0003] The purpose of the present invention is to provide a convex rivet disassembly bushing which can effectively improve the disassembly efficiency of the rivet and reduce the damage of parts. [0004] The technical solution of the present invention is: a protruding head rivet decomposition bushing, ...

AI Technical Summary

Problems solved by technology

In the prior art, the drill bit is generally used to remove the material of the rivet head. However, the prior art cannot ensure the vertical part of the drill bit and fix the drill bit. Therefore, it is easy to cause the center of the drill hole to deviate from the center of the rivet hole, resulting in "∞" shaped holes or Drilling of parts, thus causing damage to parts

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