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Designing Of Separate Drill Jigs From The Integrated Machining Approach Of Drill Plates To Achieve Lineability Of Drilled Holes In The Parts
Abstract: LCA Tejas aircraft is having two inboard and two out board elevon assemblies. These Elevons are attached to the wing by 1) Fixed operating hinge point and 2) operating horn connected to the actuator; Both operating horn and operating rib are made up of titanium alloy material. These two are held by series of Bolts-Hexagonal Head. H8 holes are to be made in both these parts for the bolt. The holes drilled on both the parts should have lineabality in the assembled condition. The assembly of these parts is so that the drilling of the parts cannot be done in single setting. So these parts are to be drilled separately without affecting the lineability.
Notices, Deadlines & Correspondence
Patent Information
Applicants
HINDUSTAN AERONAUTICS LIMITED
Inventors
1. SHRI. SHREEVATHSA C.K.
Specification
DESCRIPTION TECHNICAL FIELD
Designing of separate drill jigs from the Integrated machining approach of drill plates for operating horn and operating rib assembly on Inboard and outboard elevons of LCA.
BACKGROUND OF INVENTION
Operating rib assembly and operating horn are to be drilled separately because of space constraint in keeping the drill gun in the assembled condition. Machining of drill plates separately will lead to mismatch in the pitches of holes because of manufacturing limitations hence the concept of machining of drill plates in the integrated condition.
SUMMARY OF INVENTION
Drill jigs are made from the integrated machining of drill plates to eliminate the mismatch in the pitches of holes on the operating horn and operating rib assembly.
DRAWINGS
1. Fig - 1A & IB - Components in assembled Condition
2. Fig -2A & 2B - Integrated machining condition of two Drill plates
3. Fig-3A& 3B-Off the assembly jig drill fixture for drilling the operating Horn.
4. Fig - 4A & 4B - On the assembly jig drill fixture for drilling the operating Rib assembly (Along with CFC Skin).
CLAIMS
I claim that:
1. Separately drilling the rib 'off the jig' because of assembly constraints and drilling of horn assembly 'on the jig '.
2. Avoiding the extra master tool.
3. Achieving the lineability of holes even after drilling the parts separately.
Documents
Application Documents
| # | Name | Date |
|---|---|---|
| 1 | 72-CHE-2015 FORM-5 05-01-2015.pdf | 2015-01-05 |
| 1 | 72-CHE-2015-FER.pdf | 2021-11-10 |
| 2 | Correspondence by Applicant_Form18_19-12-2018.pdf | 2018-12-19 |
| 2 | 72-CHE-2015 FORM-3 05-01-2015.pdf | 2015-01-05 |
| 3 | Form18_Normal Request_19-12-2018.pdf | 2018-12-19 |
| 3 | 72-CHE-2015 FORM-2 05-01-2015.pdf | 2015-01-05 |
| 4 | 72-CHE-2015 FORM-1 05-01-2015.pdf | 2015-01-05 |
| 4 | 72-CHE-2015 ABSTRACT 05-01-2015.pdf | 2015-01-05 |
| 5 | 72-CHE-2015 CLAIMS 05-01-2015.pdf | 2015-01-05 |
| 5 | 72-CHE-2015 DRAWINGS 05-01-2015.pdf | 2015-01-05 |
| 6 | 72-CHE-2015 CORRESPONDENCE OTHERS 05-01-2015.pdf | 2015-01-05 |
| 6 | 72-CHE-2015 DESCRIPTION (COMPLETE) 05-01-2015.pdf | 2015-01-05 |
| 7 | 72-CHE-2015 CORRESPONDENCE OTHERS 05-01-2015.pdf | 2015-01-05 |
| 7 | 72-CHE-2015 DESCRIPTION (COMPLETE) 05-01-2015.pdf | 2015-01-05 |
| 8 | 72-CHE-2015 CLAIMS 05-01-2015.pdf | 2015-01-05 |
| 8 | 72-CHE-2015 DRAWINGS 05-01-2015.pdf | 2015-01-05 |
| 9 | 72-CHE-2015 ABSTRACT 05-01-2015.pdf | 2015-01-05 |
| 9 | 72-CHE-2015 FORM-1 05-01-2015.pdf | 2015-01-05 |
| 10 | Form18_Normal Request_19-12-2018.pdf | 2018-12-19 |
| 10 | 72-CHE-2015 FORM-2 05-01-2015.pdf | 2015-01-05 |
| 11 | Correspondence by Applicant_Form18_19-12-2018.pdf | 2018-12-19 |
| 11 | 72-CHE-2015 FORM-3 05-01-2015.pdf | 2015-01-05 |
| 12 | 72-CHE-2015-FER.pdf | 2021-11-10 |
| 12 | 72-CHE-2015 FORM-5 05-01-2015.pdf | 2015-01-05 |
Search Strategy
| 1 | 2021-03-1914-32-36E_19-03-2021.pdf |