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A high-precision frame for aircraft assembly tooling and its processing method

An assembly tooling and processing method technology, applied in the field of mechanical processing, can solve the problems of multiple gaps on the connecting surface, difficult adjustment, poor interchangeability, etc., so as to prolong the service life and reliability, facilitate transportation, prevent micro-deformation and ever-changing effect

Active Publication Date: 2016-12-21
CHANGSHA TIANYING MACHINERY MFG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This makes it easy to have multiple voids between the connected faces
The domestic use is the soft connection method, that is, the working surface of the frame is not finished, and the gaps on the connection surface are filled with epoxy cement, commonly known as soft connection. This connection method is poor in interchangeability, difficult to disassemble, difficult to adjust, and difficult to repair.

Method used

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  • A high-precision frame for aircraft assembly tooling and its processing method
  • A high-precision frame for aircraft assembly tooling and its processing method
  • A high-precision frame for aircraft assembly tooling and its processing method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0057] Embodiment 1, the processing method of the high-precision jig for large-scale helicopter assembly tooling, comprises the following steps, S1, steel pipe blanking, lofting, processing to welding size;

[0058] S2. Milling the welding groove, according to the groove of 30 degrees and 10mm from the periphery of the groove, that is, the angle of the groove is 30 degrees and the length is 10mm, which can ensure uniform welding seam and welding stress, so that all positions of the welding frame The deformation range and gap are reduced, and the strength and rigidity of the welded frame without groove are greatly improved; the base frame, bracket and top frame are welded and combined into a frame;

[0059] S3, steel plate blanking, steel plate processing, welding the steel plate to the frame assembly position;

[0060] S4. The bottom surface of the reference base frame is welded with a reference plane steel plate to obtain an integral frame;

[0061] S5. Artificial aging anne...

Embodiment 2

[0076] Embodiment 2, is used for the processing method of the high-precision type frame of small business aircraft assembly tooling, comprises the following steps, S1, steel pipe blanking, lofting, processing to welding size;

[0077] S2. Milling the welding groove, according to the groove of 30 degrees and 10mm from the periphery of the groove, that is, the angle of the groove is 30 degrees and the length is 10mm, which can ensure uniform welding seam and welding stress, so that all positions of the welding frame The deformation range and gap are reduced, and the strength and rigidity of the welded frame without groove are greatly improved; the base frame, bracket and top frame are welded and combined into a frame;

[0078] S3, steel plate blanking, steel plate processing, welding the steel plate to the frame assembly position;

[0079] S4. The bottom surface of the reference base frame is welded with a reference plane steel plate to obtain an integral frame;

[0080] S5. Ar...

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Abstract

A high accuracy frame for an aircraft assembling tool comprises a benchmark base frame which is arranged at the bottom of the integral frame, a supporting frame and a top frame; the benchmark base frame is a rectangular frame which is formed by two long rods and two short rods; a plurality of vertical bearing rods are oppositely arranged on the two long rods; the supporting frame is provided with two supporting rods; the two supporting rods which are fixed at upper ends of the vertical bearing rods are parallel to the two long rods; the top frame is a rectangular frame; the length of two short rods of the rectangular frame is less than that of the two short rods of the benchmark base frame; the length of two long rods is identical to that of the two long rods of the benchmark base frame; a projection of the top frame is in the center of the benchmark base frame; the plurality of inclined bearing rods are arranged between the top frame and the supporting frame. The invention also provides a high accuracy frame machining method. According to the high accuracy frame for the aircraft assembling tool, the frame achieves a hard connection requirement, no filler is arranged between gaps, and stability and non-deformation is guaranteed.

Description

technical field [0001] The invention relates to the field of mechanical processing, in particular to a high-precision profile frame for aircraft assembly tooling and a processing method thereof. Background technique [0002] At present, aircraft (referring to helicopters and small commercial aircraft) assembly tooling is a mold fixture used for aircraft parts assembly, and is an indispensable process equipment in the process of aircraft parts assembly and final assembly. In the process of aircraft development and production has an important position. Aircraft structural parts contain a large number of CNC machining parts and sheet metal parts. Among them, sheet metal parts are widely used, and most of them are complex in structure, large in size, small in rigidity, easy to deform, and difficult to meet the requirements of assembly positioning accuracy. The structural rigidity and positioning accuracy of the tooling directly affect the performance of the aircraft. The cumu...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23P15/00B25B11/02B64F5/00B23K33/00B64F5/10
CPCB23P15/00B25B11/02B64F5/10
Inventor 仇翯辰
Owner CHANGSHA TIANYING MACHINERY MFG
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