Device and method for adaptive robotic stone surfacing

Patent metadata

Field	Value
Publication number	US-12397472-B2
Application number	US-202117393622-A
Country	US
Kind code	B2
Filing date	Aug 4, 2021
Priority date	Aug 4, 2020
Publication date	Aug 26, 2025
Grant date	Aug 26, 2025

Abstract

A device comprising: a bracket adapted to be coupled to a distal end of a robotic arm; a tool holder coupled to said bracket and configured for changeably receiving a first portion of a stone working tool, wherein said tool is movable in a reciprocating axial direction; a driving element for driving said tool distally along said axial direction during a power stroke of said device; and a guiding element for changeably receiving a body portion of said tool and for guiding said tool in said axial direction, wherein said guiding element is configured to resiliently return said tool proximally along said axial direction after said power stroke.

First claim

The invention claimed is:

1. A device comprising:
a bracket adapted to be coupled to a distal end of a robotic arm;
a tool holder disposed within said bracket and configured for changeably receiving a first portion of a stone working tool, wherein said tool holder is movable along a single reciprocating axial direction;
a driving element, disposed within said bracket, for driving said tool holder, inside said bracket, distally along said single reciprocating axial direction during a power stroke of said device; and
a guiding element comprising one or more resilient elements, connected to said tool holder, for changeably receiving a body portion of said tool and for guiding said tool in said single reciprocating axial direction, wherein said guiding element is configured to slidingly reciprocally travel along said single reciprocating axial direction, and wherein said guiding element is configured to resiliently return said tool proximally along said single reciprocating axial direction after said power stroke.

2. The device of claim 1 , wherein said tool is a stone working tool.

3. The device of claim 1 , wherein said driving element is one of a: a pneumatic pressure driving element, and an electro-mechanical driving element.

4. The device of claim 1 , wherein said guiding element is configured to slide reciprocally on one or more guide rails.

5. The device of claim 1 , wherein said guiding element is resiliently supported by at least one resilient element which returns said driving element proximally in said single reciprocating axial direction.

6. The device of claim 1 , further comprising one or more sensors selected from the group consisting of: distance sensor, accelerometer, and force sensor.

7. A method comprising:
providing a device comprising:
a bracket adapted to be coupled to a distal end of a robotic arm;
a tool holder disposed within said bracket and configured for changeably receiving a first portion of a stone working tool, wherein said tool holder is movable along a single reciprocating axial direction;
a driving element, disposed within said bracket, for driving said tool holder, inside said bracket, distally along said single reciprocating axial direction during a power stroke of said device; and
a guiding element comprising one or more resilient elements, connected to said tool holder, for changeably receiving a body portion of said tool and for guiding said tooling said single reciprocating axial direction, wherein said guiding element is configured to slidingly reciprocally travel along said single reciprocating axial direction, and wherein said guiding element is configured to resiliently return said tool proximally along said single reciprocating axial direction after said power stroke;
coupling said device to a distal end of a robotic arm; and
operating said robotic arm according to a set of fabrication instructions, to generate a desired surface pattern on a working surface of a stone article.

8. The method of claim 7 , wherein said tool is a stone working tool.

9. The method of claim 7 , wherein said driving element is one of a: a pneumatic pressure driving element, and an electro-mechanical driving element.

10. The method of claim 7 , wherein said guiding element is configured to slide reciprocally on one or more guide rails.

11. The method of claim 7 , wherein said guiding element is resiliently supported by at least one resilient element which returns said driving element proximally in said single reciprocating axial direction.

12. The method of claim 7 , further comprising one or more sensors selected from the group consisting of: distance sensor, accelerometer, and force sensor.

Assignees

• Technion Res & Dev Foundation

Inventors

• Sprecher Aaron
• Shaked Tom

Classifications

• B25J9/1679

  characterised by the tasks executed · CPC title

• B25J11/005

  Manipulators for mechanical processing tasks · CPC title

• B25J19/023

  including video camera means · CPC title

• B28D1/28

  without cutting edge {, e.g. chiseling machines} · CPC title

• G05B2219/45212

  Etching, engraving, sculpturing, carving · CPC title