De-ice fairing bond fixture

Patent metadata

Field	Value
Publication number	US-10875638-B2
Application number	US-201615282263-A
Country	US
Kind code	B2
Filing date	Sep 30, 2016
Priority date	Sep 30, 2016
Publication date	Dec 29, 2020
Grant date	Dec 29, 2020

Abstract

A bond fixture includes a first frame defining a chamber configured to receive a leading edge of a rotor blade and a second frame pivotally coupled to the first frame. The second frame is movable between a first position and a second position. In the second position, the second frame restricts movement of the bond fixture relative to the rotor blade. At least one supporting assembly extends from the first frame towards the chamber. The at least one supporting assembly is adjustable to apply a pressure to an adjacent surface of the rotor blade.

First claim

What is claimed is:

1. A bond fixture comprising:
a first frame including a connecting member, a first arm, and a second arm, the first arm and the second arm are oriented generally parallel to one another and extend from opposing ends of the connecting member, an axial length of the second arm is greater than an axial length of the first arm and a distal end of the second arm is arranged at an angle to the first arm, wherein a chamber configured to receive a leading edge of a rotor blade is defined between the first arm, a portion of the second arm overlapping the first arm, and the connecting member;
a second frame including a support movably coupled to the distal end of the second arm, the second frame being movable between a first position and a second position, wherein in the second position, the support is arranged external to said chamber and is oriented generally parallel to the connecting member; and
at least one supporting assembly extending from the first frame towards the chamber, the at least one supporting assembly being movable relative to the first frame to apply a pressure to an adjacent surface of the rotor blade, wherein the at least one supporting assembly includes a supporting assembly extending from the connecting member into the chamber.

2. The bond fixture according to claim 1 , wherein the second frame is pivotally coupled to the distal end of the second arm.

3. The bond fixture according to claim 2 , wherein a length of the second arm is substantially greater than a length of the first arm.

4. The bond fixture according to claim 1 , wherein the at least one supporting assembly includes a supporting assembly coupled to the connecting member of the first frame.

5. The bond fixture according to claim 4 , wherein the supporting assembly coupled to the connecting member includes a pad having a contoured surface complementary to the leading edge of the rotor blade.

6. The bond fixture according to claim 1 , wherein the at least one supporting assembly includes a pair of supporting assemblies coupled to the first arm and the second arm and extending towards the chamber.

7. The bond fixture according to claim 6 , wherein the pair of supporting assemblies are substantially aligned.

8. The bond fixture according to claim 6 , wherein each of the pair of supporting assemblies includes a pad having a contoured surface complementary to an adjacent surface of the rotor blade.

9. The bond fixture according to claim 1 , wherein a locking mechanism is configured to couple to the first frame and the second frame to lock the second frame in the second position.

10. The bond fixture according to claim 1 , wherein in the second position, the second frame is configured to contact a blade cuff of the rotor blade.

11. The bond fixture according to claim 10 , wherein at least one another supporting assembly extends from the second frame towards the chamber, the at least one another supporting assembly including a pad configured to about a surface of the blade cuff.

12. The bond fixture according to claim 1 , further comprising a heating element associated with at least one of the first frame and the second frame.

13. A bond fixture comprising:
a first frame including a connecting member, a first arm, and a second arm, the first arm and the second arm are oriented generally parallel to one another and extend from opposing ends of the connecting member, an axial length of the second arm is greater than an axial length of the first arm and a distal end of the second arm is arranged at an angle to the first arm, wherein a chamber configured to receive a leading edge of a rotor blade is defined between the first arm, a portion of the second arm overlapping the first arm, and the connecting member;
a second frame including a support coupled to the first frame, the second frame being movable relative to the first frame, wherein the second frame is movable to a position such that the support is arranged external to said chamber and is oriented generally parallel to the connecting member; and
at least one supporting assembly extending from the first frame, wherein the at least one support assembly includes a supporting assembly extending from the connecting member into the chamber, the at least one supporting assembly being movable relative to the first frame to apply a pressure to the rotor blade, wherein the bond fixture is operable to bond a de-ice fairing to a rotor blade via:
installing the de-ice fairing to the rotor blade;
positioning the bond fixture about the rotor blade;
rotating the second frame relative to the first frame;
adjusting the at least one supporting assembly to apply pressure to a surface of the rotor blade and de-ice fairing; and
applying localized and constant pressure to the de-ice fairing.

Assignees

• Sikorsky Aircraft Corp

Inventors

• Littlejohn David
• Lofstrom Sven Roy
• Smith Scott Oren

Classifications

• B23K2101/001

  Turbines · CPC title

• B64F5/40

  Maintaining or repairing aircraft · CPC title

• B64D15/00

  De-icing or preventing icing on exterior surfaces of aircraft · CPC title

• B64F5/10

  Manufacturing or assembling aircraft, e.g. jigs therefor · CPC title

• B29C73/24

  Apparatus or accessories not otherwise provided for · CPC title