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Closed area high locking bolt installation method

An installation method and high-lock nut technology are applied in metal processing, metal processing equipment, manufacturing tools, etc., and can solve problems such as low production efficiency, inability to use high-lock bolts and fixed-torque wind turbines, and restrictions on the production and delivery of aircraft products. , to achieve the effect of improving the utilization rate, expanding the use of tools, and solving the low installation efficiency

Inactive Publication Date: 2019-06-11
XIAN AIRCRAFT IND GROUP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For the installation of high-lock nuts, high-lock bolt fixed-moment wind turbines are generally used. However, due to the limitation of aircraft structure design, there are still many high-lock nuts on the aircraft where the installation position is at a closed angle, and high-lock bolt fixed-moment wind turbines cannot be used. The trigger can only be installed with manual tools, and the production efficiency is low, which restricts the production and delivery of aircraft products

Method used

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  • Closed area high locking bolt installation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0017] Such as figure 1 As shown, a method for installing high-lock bolts in closed areas uses a panel drill 1, adapter 2, sleeve 3, and hexagonal wrench 6 to install high-lock bolts 5. The specific installation includes the following steps:

[0018] 1 According to the product assembly space and the twisting torque value of the high lock nut 4 matched with the high lock bolt 5, the plate drill 1 is selected, and the torque of the plate drill 1 is greater than the twisting torque of the upper hexagon of the high lock nut 4;

[0019] In this example, according to the product assembly space (the structure is a closed bevel angle of 60°) and the twisting torque value of the high lock nut 4NTA11752-5 / NTA11752-6 (NTA11752-5 is 15-25IN.LbS; NTA11752-6 is 25- 35IN.LbS) selected a plate drill 1, the model is 17698, and the torque is 120IN.LbS. The included angle between the handle of the plate drill 1 and the rotating head is 17°, the rotating head can rotate 360 ​​degrees with the in...

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Abstract

The invention discloses a closed area high locking bolt installation method. A high locking bolt is installed by using a twist drill, an adaptor, a sleeve and an internal hexagon spanner. One end of the adaptor is matched with a threaded inner hole of the twist drill. The other end of the adaptor is matched with a square hole of the sleeve. The center of the adaptor is provided with an internal hexagon spanner passing hole. An operator presses the head of the twist drill with one hand and presses a twist drill switch with other hand. The twist drill drives a high locking nut to rotate until the high locking nut is twisted off.

Description

technical field [0001] The invention relates to aircraft assembly and manufacturing technology, and is particularly suitable for bolt installation in closed areas of aircraft space. Background technique [0002] In the field of aircraft manufacturing, aircraft assembly is the main link of aircraft manufacturing, and its workload accounts for about 40%-50% of the entire aircraft manufacturing labor. High-lock bolts are one of the most used fasteners. For the installation of high-lock nuts, high-lock bolt fixed-moment wind turbines are generally used. However, due to the limitation of aircraft structure design, there are still many high-lock nuts on the aircraft where the installation position is at a closed angle, and high-lock bolt fixed-moment wind turbines cannot be used. The trigger can only be installed with manual tools, and the production efficiency is low, which restricts the production and delivery of aircraft products. In order to cope with the increasingly fierce ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23P19/06
Inventor 戴志立姚坤张晓博
Owner XIAN AIRCRAFT IND GROUP
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