Unpacking device for unpacking an additively manufactured three-dimensional object from the surrounding construction material

Patent metadata

Field	Value
Publication number	US-11577404-B2
Application number	US-201715812726-A
Country	US
Kind code	B2
Filing date	Nov 14, 2017
Priority date	Nov 14, 2016
Publication date	Feb 14, 2023
Grant date	Feb 14, 2023

Abstract

An unpacking device (4) for unpacking an additively manufactured three-dimensional object (2) from the unsolidified construction material (3) surrounding it after completion of an additive construction process, wherein the unpacking device (4) is formed as a robot (7) having at least three robot axes (A1-A6), especially an industrial robot, wherein at least one unpacking tool (10) is arranged or formed on a robot axis (A6), which is provided for unpacking an additively manufactured three-dimensional object (2) from the unsolidified construction material (3) surrounding it after completion of an additive construction process, or the unpacking device (4) comprises at least one such robot (7).

First claim

The invention claimed is:

1. An unpacking device for unpacking an additively manufactured three-dimensional object from an unsolidified construction material after completion of an additive construction process, the unpacking device comprising:
a robot comprising at least three robot axes;
at least one unpacking tool arranged or formed on a robot axis of the at least three robot axes, the at least one unpacking tool configured for unpacking the additively manufactured three-dimensional object from the unsolidified construction material after completion of the additive construction process;
a control device configured for generating control information, the control information controlling movements of the at least three robot axes during operation of the robot, wherein the control information is based on data describing a geometric structural design of the additively manufactured three-dimensional object; and
an unpacking chamber in which the robot is movably supported in at least one freedom degree of motion within the unpacking chamber, the robot arranged supported on a bottom wall, a side wall, or a top wall limiting the unpacking chamber, the bottom wall of the unpacking chamber being coplanar with an upper surface of the unsolidified construction material after completion of the additive construction process; and
wherein the robot is movable to pre-defined unpacking positions, the pre-defined unpacking positions based on the geometric structural design of the three-dimensional object.

2. The unpacking device according to claim 1 , wherein the robot has more than three robot axes.

3. The unpacking device according to claim 1 , wherein the robot axes are assigned to robot elements connected via joint elements.

4. The unpacking device according to claim 1 , wherein the unpacking tool comprises a suction tool and/or a blower tool forming part of a suction device and/or a blower device.

5. The unpacking device according to claim 1 , wherein the unpacking tool is arranged exchangeably on the robot axis.

6. An unpacking station for a system for additive manufacturing three-dimensional objects, wherein the unpacking station comprises at least one unpacking device according to claim 1 .

7. The unpacking station according to claim 6 , wherein the at least one unpacking device is movably supported on the bottom wall, the side wall, or the top wall limiting the unpacking chamber.

8. A system for additive manufacturing three-dimensional objects, the system comprising at least one unpacking station comprising the unpacking device according to claim 1 .

9. The unpacking device according to claim 1 , wherein the at least one unpacking tool is a suction tool.

10. The unpacking device according to claim 1 , wherein the at least one unpacking tool is a blower tool.

11. An unpacking device for unpacking an additively manufactured three-dimensional object from an unsolidified construction material after completion of an additive construction process, the unpacking device comprising:
a robot comprising at least three robot axes;
at least one unpacking tool arranged or formed on a robot axis of the at least three robot axes, the at least one unpacking tool configured for unpacking the additively manufactured three-dimensional object from the unsolidified construction material after completion of the additive construction process;
a control device configured for generating control information, the control information controlling movements of the at least three robot axes during operation of the robot, wherein the control information is based on data describing a geometric structural design of the additively manufactured three-dimensional object and
an unpacking chamber in which the robot is movably supported in at least one freedom degree of motion within the unpacking chamber, the robot arranged supported on a bottom wall limiting the unpacking chamber;
wherein the robot is movable to pre-defined unpacking positions, the pre-defined unpacking positions based on the geometric structural design of the three-dimensional object.

12. The unpacking device according to claim 11 , wherein the bottom wall is coplanar with an upper surface of the unsolidified construction material after completion of the additive construction process.

13. The unpacking device according to claim 1 , wherein the robot is arranged supported on the side wall limiting the unpacking chamber.

14. An unpacking device for unpacking an additively manufactured three-dimensional object from an unsolidified construction material after completion of an additive construction process, the unpacking device comprising:
a robot comprising at least three robot axes;
at least one unpacking tool arranged or formed on a robot axis of the at least three robot axes, the at least one unpacking tool configured for unpacking the additively manufactured three-dimensional object from the unsolidified construction material after completion of the additive construction process;
a control device configured for generating control information, the control information controlling movements of the at least three robot axes during operation of the robot, wherein the control information is based on data describing a geometric structural design of the additively manufactured three-dimensional object; and
an unpacking chamber in which the robot is movably supported in at least one freedom degree of motion within the unpacking chamber, the robot arranged supported on a top wall limiting the unpacking chamber;
wherein the robot is movable to pre-defined unpacking positions, the pre-defined unpacking positions based on the geometric structural design of the three-dimensional object.

15. The unpacking device according to claim 3 , wherein the joint elements are swivel joints.

16. The unpacking device according to claim 1 , wherein the unsolidified construction material is a metal powder.

17. The unpacking device according to claim 1 , wherein the unsolidified construction material is a ceramic powder.

18. The unpacking device according to claim 1 , wherein the unsolidified construction material is a plastic powder.

19. The unpacking device according to claim 1 , wherein the robot comprises six robot axes.

20. The unpacking device according to claim 1 , wherein the robot is an articulated arm robot.

Assignees

• Cl Schutzrechtsverwaltungs Gmbh
• Concept Laser Gmbh

Inventors

• Bechmann Florian
• Zeulner Fabian
• Stammberger Jens
• Hetzel Ralf

Classifications

• Y02P10/25

  Process efficiency · CPC title

• B22F12/88

  Handling of additively manufactured products, e.g. by robots · CPC title

• B22F10/00 Primary

  Additive manufacturing of workpieces or articles from metallic powder (apparatus or devices therefor B22F12/00) · CPC title

• B22F10/28

  Powder bed fusion, e.g. selective laser melting [SLM] or electron beam melting [EBM] · CPC title

• B22F10/68

  Cleaning or washing · CPC title