A processing method of a choke door

Abstract

The invention discloses a processing method of a choke door, comprising: a positioning bracket, a base; a pressing mechanism; a positioning pin A, a positioning pin B; a main mounting seat limiting mechanism; a side mounting seat limiting mechanism; Through the positioning pin A, the positioning pin B and the pressing mechanism, the accurate processing reference of the choke door can be obtained. The bolt realizes the accurate acquisition of the machining datum for the main mounting seat, the right mounting seat and the left mounting seat, and solves the problem that it is difficult to obtain accurate positioning to realize the accurate machining of the bolt hole; The hooks press and position the right mounting seat and the left mounting seat respectively, the positioning pin of the main mounting seat is positioned on the positioning bracket to limit and fix the positioning block of the main mounting seat, and then locked by the locking mechanism, which solves the problem of the prior art. Difficult to fix problem.

Description

technical field [0001] The invention relates to a processing device and a processing method for a choke door, belonging to the technical field of spare parts processing. Background technique [0002] Cascade-type thrust reverser is a device commonly used for deceleration in aircraft at present. For cascade-type thrust reverser, please refer to the article "Cascade-type thrust reverser blocking flow" in "Aerodynamics Journal", June 25, 2010, No. 6 The Influence of Door Movement Law on Aerodynamic Performance", as well as a thrust reverser choke door sealing mechanism disclosed in Chinese Patent No. 2017105233463, and a system and method for controlling aircraft flaps and spoilers disclosed in Chinese Patent No. 2006800041310, The choke door is an important part of the cascade thrust reverser; [0003] Before installation, the choke door needs to be bolted to the left mounting seat, right mounting seat, and main mounting seat. To ensure that the positional relationship betwee...

AI Technical Summary

Problems solved by technology

[0003] Before installation, the choke door needs to be bolted to the left mounting base, the right mounting base, and the main mounting base. The bolt holes are pre-formed and need to be processed together with the corresponding holes on the choke door after the choke door is assembled. In order to reduce the weight of the choke door, the choke door is made of composite materials. Currently, the choke door and three When the bolt holes on the mounting base are machined by CNC machining, since the choke itself is a curved surface made of composite materials, it is impossible to find an accurate machining reference on the CNC machine tool, and it is difficult to obtain accurate positioning during machining to achieve bolt alignment. Precise processing of the hole, while the CNC machine tool cannot fix the choke door and the three matching seat parts at the same time

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