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Aircraft thin plate countersunk hole cutting device

A cutting device and countersunk hole technology, applied in portable drilling rigs, drilling/drilling equipment, metal processing, etc., can solve the problems of reduced aerodynamic smoothness, rework, and uneven appearance of screw fasteners, etc., to achieve improved Machining accuracy, improving efficiency, and avoiding the effect of uneven appearance

Active Publication Date: 2018-03-30
SHANDONG TAIKOO AIRCRAFT ENG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, there is no special tooling equipment for processing this kind of process. Most of the workers use general-purpose tools to process with experience. This kind of working method is relatively low in efficiency, and often results in processing due to the irregular diameter of the hole after cutting. The installation requirements of the rear fasteners do not meet the requirements or the error is too large, and the appearance of the screw fasteners is uneven after installation, and the aerodynamic smoothness is reduced, which will eventually lead to the scrapping or rework of the workpiece, which will interfere and wear the subsequent installation of related accessories and affect the aircraft. flight safety

Method used

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  • Aircraft thin plate countersunk hole cutting device
  • Aircraft thin plate countersunk hole cutting device
  • Aircraft thin plate countersunk hole cutting device

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Embodiment Construction

[0030] Attached below figure 1 to attach Figure 6 The present invention will be further described.

[0031] An aircraft sheet countersink cutting device, comprising: an upper base 1, which is used to clamp the upper surface of a sheet material 22; a lower base 17, which is vertically slid and inserted into the lower end of the upper base 1 through a shaft rod 16, Used to clamp the lower surface of the thin plate 22; the lower base driving mechanism is installed on the upper base 1, and is used to drive the lower base 17 to move up and down relative to the upper base 1; the threaded sleeve 25 is vertically screwed on the In the threaded hole I 29 on the upper base 17; the slide rod 23 is slid and inserted in the socket 28 of the threaded sleeve 25 in the axial direction, and its head end is provided with a triangular rod 24, and between its lower end and the socket 28 A spring III 27 is provided; and a countersink cutting tool 38 is located on the upper end of the thin plate...

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Abstract

The invention discloses an aircraft sheet counterbore cutting device. The aircraft sheet counterbore cutting device comprises an upper base, a lower base, a lower base driving mechanism, a thread sleeve, a slide rod and a counterbore cutting tool. A lower base driving rod mechanism drives the lower base to upwards move to fixedly clamp a sheet; then, a three-edge rod is clamped on a power device; under the effect of the power device, a lower cylinder rod is driven to rotate, so that the counterbore cutting tool rotates; the guide rod can be inserted in a premachined hole and a through hole for realizing positioning; and the pressure is downwards applied in the axial direction, so that the slide rod downwards slides along an insertion hole to realize axial feeding of the counterbore cutting tool to finish drilling of counterbores, the counterbore machining precision is improved, the uneven appearance of screw fastening pieces after installation is prevented, and the counterbore machining efficiency is improved.

Description

technical field [0001] The invention relates to an aircraft sheet countersink cutting device. Background technique [0002] Areas where smoothness is required on aircraft are usually fitted with grub screws after countersunk holes are cut in thin walls. If the thickness of the plate is less than the thickness of the process head of the flat head screw installed, this type of plate is identified as a thin plate. When a countersink is cut in this type of thin sheet, the diameter of the hole will be larger than the diameter of the screw shank. At present, there is no special tooling equipment for processing this kind of process. Most of the workers use general-purpose tools to process with experience. This kind of working method is relatively low in efficiency, and often results in processing due to the irregular diameter of the hole after cutting. The installation requirements of the rear fasteners do not meet the requirements or the error is too large, and the appearance of...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23B45/14
CPCB23Q9/02
Inventor 赵友磊田崇栋
Owner SHANDONG TAIKOO AIRCRAFT ENG
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