Systems, methods, and apparatus for automated sealant application

• US 10,486,369 B2
• Filed: 06/04/2018
• Issued: 11/26/2019
• Est. Priority Date: 05/04/2015
• Status: Active Grant

• Current Assignee: The Boeing Co.
• Original Assignee: The Boeing Co.
• Inventors: Guirguis, Martin Hanna, Mireles, Cesar
• Primary Examiner(s): Davis, Robert B
• Application Number:
  US15/997,382
• Publication Number:
  US 20180281300A1
• Time in Patent Office: 540 Days
• CPC Class Codes: B05C 11/023 Apparatus for spreading or distributing liquids or other fluent materials already applied to a surface B05C11/021, B05C11/04 take precedence
• CPC Class Codes: B05C 5/02 the liquid or other fluent material being discharged through an outlet orifice by pressure, e.g. from an outlet device in contact or almost in contact, with the work
• CPC Class Codes: B05C 9/12 the auxiliary operation being performed after the application B05C9/14 takes precedence
• CPC Class Codes: B05D 1/26 performed by applying the liquid or other fluent material from an outlet device in contact with, or almost in contact with, the surface
• CPC Class Codes: B29C 65/70 by moulding using a particular moulding technique, see the relevant technique , e.g. by injection B29C45/14467
• CPC Class Codes: B29C 66/863 Robotised, e.g. mounted on a robot arm
• CPC Class Codes: B29L 2031/30 Vehicles, e.g. ships or aircraft, or body parts thereof vanes or blades B29L2031/08, air bags B29L2022/027
• CPC Class Codes: B60K 15/03 Fuel tanks chassis frame comprising fluid storage compartment B62D21/16 ; Details of the fuel feeding system related to the fuel tank F02M37/0076
• CPC Class Codes: B64D 37/02 Tanks tanks constructed integrally with aircraft wings B64C; shape or construction of tanks per se B65D
• CPC Class Codes: F16B 33/004 Sealing; Insulation by means of washers F16B43/001

Abstract

Systems, methods, and apparatus are disclosed for shaping sealant applied to a fastener. Methods include pressing, using an end effector of a robotic arm, a dabbing tool against the sealant, the sealant sealing a surface of the fastener along a surface of an assembly, the pressing of the dabbing tool shaping an exterior surface of the sealant. Methods also include releasing an amount of solvent from the dabbing tool in response to the pressing, the amount of solvent reducing adhesion between the dabbing tool and the sealant, the amount of solvent being released, at least in part, from a porous member included in the dabbing tool. Methods further include disengaging the dabbing tool from the sealant after the shaping of the exterior surface of the sealant.

Claims

1. A method for shaping sealant applied to a fastener, the method comprising:

storing a first amount of solvent in a first layer of a porous member of a dabbing tool;

storing a second amount of solvent in a second layer of the porous member, the second amount being wicked away from the first amount of solvent stored in the first layer, wherein the first layer is positioned inside a chamber of the dabbing tool and has a surface defined, at least in part, by an interior surface of the chamber, and wherein the second layer is positioned across an opening of the chamber;

pressing, using an end effector of a robotic arm, the dabbing tool against the sealant, the sealant sealing a surface of the fastener along a surface of an assembly, the pressing of the dabbing tool shaping an exterior surface of the sealant;

releasing an amount of solvent from the dabbing tool in response to the pressing, the amount of solvent reducing adhesion between the dabbing tool and the sealant, the amount of solvent being released, at least in part, from the porous member included in the dabbing tool; and

disengaging the dabbing tool from the sealant after the shaping of the exterior surface of the sealant.

2. The method of claim 1 further comprising:

providing, from an external reservoir, an additional amount of solvent to the porous member in response to the releasing.

3. The method of claim 2, wherein the additional amount of solvent is received via a port in a housing of the dabbing tool.

4. The method of claim 1, wherein the pressing of the dabbing tool shaping the exterior surface of the sealant reduces a protrusion of the sealant.

5. The method of claim 1 further comprising:

determining a position of the pressing based on engineering data associated with the assembly.

6. The method of claim 5, wherein the engineering data comprises a three-dimensional representation of the assembly.

7. The method of claim 5 further comprising:

determining if additional fasteners should be sealed, the determining being based on a plurality of designated positions identified based on the engineering data.

8. The method of claim 1, wherein the sealant is applied by a robotic sealant applicator coupled to a robotic arm.

9. The method of claim 1 further comprising regulating a flow of solvent provided to the porous member using a regulator.

10. A method for applying and shaping sealant on a fastener, the method comprising:

moving an end effector of a robotic arm to a position to align the end effector with a location of a fastener in an assembly;

applying, using the end effector, an amount of sealant to the fastener;

storing a first amount of solvent in a first layer of a porous member of a dabbing tool;

storing a second amount of solvent in a second layer of the porous member, the second amount being wicked away from the first amount of solvent stored in the first layer, wherein the first layer is positioned inside a chamber of the dabbing tool and has a surface defined, at least in part, by an interior surface of the chamber, and wherein the second layer is positioned across an opening of the chamber;

pressing, using the end effector, the dabbing tool against the sealant, the sealant sealing a surface of the fastener along a surface of the assembly, the pressing of the dabbing tool shaping an exterior surface of the sealant;

releasing an amount of solvent from the dabbing tool in response to the pressing, the amount of solvent reducing adhesion between the dabbing tool and the sealant, the amount of solvent being released, at least in part, from the porous member included in the dabbing tool; and

disengaging the dabbing tool from the sealant after the shaping of the exterior surface of the sealant.

11. The method of claim 10 further comprising:

rotating, using the end effector, the dabbing tool to face the fastener after the applying of the sealant.

12. The method of claim 11, wherein the rotating rotates, using a rotating component, an orientation of a robotic sealant applicator and the dabbing tool.

13. The method of claim 10 further comprising moving the dabbing tool to a plurality of designated positions using the robotic arm, the plurality of designated positions being determined based on engineering data associated with the assembly.

14. A method for applying acid shaping sealant on a plurality of fasteners, the method comprising:

storing a first amount of solvent in a first layer of a porous member of a dabbing tool;

storing a second amount of solvent in a second layer of the porous member, the second amount being wicked away from the first amount of solvent stored in the first layer, wherein the first layer is positioned inside a chamber of the dabbing tool and has a surface defined, at least in part, by an interior surface of the chamber, and wherein the second layer is positioned across an opening of the chamber;

moving an end effector of a robotic arm to a first fastener at a first position;

pressing, using the end effector, the dabbing tool against a first sealant sealing a first surface of the first fastener along a surface of an assembly, the pressing of the dabbing tool shaping a first exterior surface of the first sealant;

releasing a first amount of solvent from the dabbing tool in response to the pressing, the first amount of solvent reducing adhesion between the dabbing tool and the first sealant, the first amount of solvent being released, at least in part, from the porous member included in the dabbing tool;

disengaging the dabbing tool from the first sealant after the shaping of the first exterior surface of the first sealant;

determining, based on engineering data, if additional fasteners should be sealed; and

moving the end effector to a second fastener at a second position responsive to determining that additional fasteners should be sealed.

15. The method of claim 14 further comprising:

pressing, using the end effector, the dabbing tool against a second sealant sealing a second surface of the second fastener along the surface of the assembly, the pressing of the dabbing tool shaping a second exterior surface of the second sealant;

releasing a second amount of solvent from the dabbing tool in response to the pressing, the second amount of solvent reducing adhesion between the dabbing tool and the second sealant, the second amount of solvent being released, at least in part, from the porous member included in the dabbing tool; and

disengaging the dabbing tool from the second sealant after the shaping of the second exterior surface of the second sealant.

16. The method of claim 14, wherein the first fastener and the second fastener are included in a path of fasteners defined by the engineering data comprising a three-dimensional representation of the assembly.