Fastener hole centering drilling device for seat guide rail in lower pound column area of passenger-to-cargo airplane

A technology for seat guide rails and fastener holes, which is applied to aircraft parts, boring/drilling, drilling/drilling equipment, etc. It can solve problems such as poor work accuracy, low work efficiency, and seat jamming. Achieve the effects of improving processing efficiency, ensuring verticality, and improving processing accuracy

Active Publication Date: 2016-05-11
SHANDONG TAIKOO AIRCRAFT ENG
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  • Abstract
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AI Technical Summary

Problems solved by technology

Because the surface of the seat guide rail profile is thicker, the verticality of the drilling, the concentricity of the drilling hole and the center of the circular clamping hole of the seat guide rail [26] require higher skill levels and work experience of the staff. It is difficult for unskilled employees to guarantee the quality of work, and finally the fasteners are not concentric with the center of the circular clamping hole of the [26] seat rail after installation, and there is a gap between the lower surface of the fastener process head and the surface of the profile. It will affect the structural connection strength and even cause stress concentration to cause deformation. In severe cases, it will interfere with the seat mounting feet, causing the seat to jam or fail to install.
The above reasons lead to low work efficiency, high work cost per unit time and poor work precision.

Method used

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  • Fastener hole centering drilling device for seat guide rail in lower pound column area of passenger-to-cargo airplane

Examples

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Example Embodiment

[0022] Attached below figure 1 The present invention will be further explained.

[0023] A centering and drilling device for seat rail fastener holes in the weighing post area of ​​a passenger-to-cargo aircraft, comprising a bracket 14, the lower end of which is in contact with the lower end surface 23 of the rail profile of the seat rail profile 22; a center positioning device is arranged on the bracket In 14, the center positioning device is inserted into the circular clamping hole 24 of the seat rail profile 22; the reversing bracket 9 is horizontally rotated relative to the center positioning device;

[0024] N drilling positioning devices are uniformly installed on the reversing bracket 9 in the circumferential direction with the center of the center positioning device as the center. The drilling positioning device is provided with a guide hole 13 matching the drill bit along the axial direction. The drilling positioning device is vertical Straightly inserted into the circular c

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Abstract

A fastener hole centering drilling device for a seat guide rail in a lower pound column area of a passenger-to-cargo airplane comprises a support, a center positioning device, a reversing support and N drilling positioning devices. When the fastener hole centering drilling device is used, a seat guide rail profile is placed in the support, then the center positioning device is inserted in a round clamping hole, afterwards, the drilling positioning devices are inserted into another round clamping hole needing to be drilled, drill bits move downwards along guide holes, and a hole can be drilled in a drilling surface. Since the diameters of the guide holes in different drilling positioning devices can be different, the drilled hole can be broadened step by step from a small hole to a large hole by constantly changing the drilling positioning devices, and the retrofitting standards of Boeing aircrafts are met. Since the guide holes are perpendicular to the drilling surface all the time, the drilling perpendicularity is ensured effectively, and fasteners are concentric with the round clamping holes of the seat guide rail profile after being installed. The machining efficiency is improved, and the machining precision is improved.

Description

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Claims

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Application Information

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Owner SHANDONG TAIKOO AIRCRAFT ENG
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