Reconfigurable assembly work station

Patent metadata

Field	Value
Publication number	US-9815155-B2
Application number	US-201514674687-A
Country	US
Kind code	B2
Filing date	Mar 31, 2015
Priority date	Mar 31, 2015
Publication date	Nov 14, 2017
Grant date	Nov 14, 2017

Abstract

A reconfigurable autonomous workstation includes a multi-faced superstructure including a horizontally-arranged frame section supported on a plurality of posts. The posts form a plurality of vertical faces arranged between adjacent pairs of the posts, the faces including first and second faces and a power distribution and position reference face. A controllable robotic arm suspends from the rectangular frame section, and a work table fixedly couples to the power distribution and position reference face. A plurality of conveyor tables are fixedly coupled to the work table including a first conveyor table through the first face and a second conveyor table through the second face. A vision system monitors the work table and each of the conveyor tables. A programmable controller monitors signal inputs from the vision system to identify and determine orientation of the component on the first conveyor table and control the robotic arm to execute an assembly task.

First claim

The invention claimed is:

1. A reconfigurable autonomous workstation for assembling components into an assembled product, the workstation comprising:
a multi-faced superstructure including a horizontally-arranged frame section supported on a plurality of posts, the posts forming a plurality of vertical faces, each face arranged between adjacent pairs of the posts, the faces including first and second faces and a power distribution and position reference face;
a controllable robotic arm suspended from the horizontally-arranged frame section;
a work table fixedly coupled to the power distribution and position reference face;
a plurality of conveyor tables including a first conveyor table fixedly coupled to the work table through the first face and a second conveyor table fixedly coupled to the work table through the second face;
a vision system monitoring the work table and monitoring each of the conveyor tables; and
a programmable controller executing a control routine operative to:
monitor signal inputs from the vision system to identify and determine orientation of a first component on the first conveyor table,
control the robotic arm to pick the first component from the first conveyor table and execute an assembly task with the first component at the work table to produce a work product,
determine if the work product is an assembled product, and
control the robotic arm to transfer the assembled product onto the second conveyor table.

2. The workstation of claim 1 , further comprising the controllable robotic arm including one of a plurality of interchangeable end-effectors each configured to execute an assembly task.

3. The workstation of claim 2 , wherein the interchangeable end-effectors, each configured to execute an assembly task, comprise the interchangeable end-effectors configured to execute an assembly task comprising one of picking, transferring, stacking and fastening the first component.

4. The workstation of claim 1 , wherein the conveyor tables comprise autonomously controlled conveyor tables.

5. The workstation of claim 4 , wherein each of the autonomously controlled conveyor tables further comprises a horizontally-oriented continuous conveyor belt mounted on an adjustable stand, wherein the conveyor belt is operated by an electric motor operatively connected to a proximity sensor.

6. The workstation of claim 1 , further comprising the plurality of conveyor tables including a third conveyor table fixedly coupled to the work table through the first face; and wherein the programmable controller executes a control routine to:
monitor signal inputs from the vision system to identify and determine orientation of the first component on the first conveyor table and a second component on the third conveyor table,
control the robotic arm to pick the first component from the first conveyor table and execute an assembly task with the first component at the work table to produce a work product,
control the robotic arm to pick the second component from the third conveyor table and execute an assembly task with the second component at the work table to continue to produce the work product,
determine if the work product is an assembled product, and
control the robotic arm to transport the assembled product onto the second conveyor table.

7. The workstation of claim 1 , further comprising a third conveyor table fixedly coupled to the work table, wherein the programmable controller is configured to:
monitor signal inputs from the vision system to identify and determine an orientation of the first component on the first conveyor table and identify and determine an orientation of a second component on the third conveyor table,
control the robotic arm to pick the first component from the first conveyor table and execute an assembly task with the first component and control the robotic arm to pick the second component from the third conveyor table and execute assembly tasks with the first and second components to produce a work product,
determine if the work product is an assembled product, and
control the robotic arm to transfer the assembled product onto the second conveyor table.

8. The workstation of claim 7 , comprising the third conveyor table fixedly coupled to the work table through the first face.

9. The workstation of claim 7 , further comprising the multi-faced superstructure including the first and second faces and a third face; wherein the third conveyor table fixedly couples to the work table through the third face.

10. The workstation of claim 1 , further comprising each of the posts having a caster attached to its bottom section.

11. The workstation of claim 1 , wherein the first conveyor table fixedly coupled to the work table through the first face further comprises the first conveyor table configured to transfer the component to be within a range of motion of the robotic arm and wherein the second conveyor table fixedly coupled to the work table through the second face comprises the robotic arm configured to transport the assembled product to the second conveyor table.

12. An autonomous workstation configurable to assemble components into an assembled product, the workstation comprising:
a multi-faced superstructure including a horizontally-arranged frame section supported on a plurality of posts, the posts forming a plurality of vertical faces, each face arranged between adjacent pairs of the posts, the faces including first, second and third faces and a power distribution and position reference face;
a work table fixedly coupled to the power distribution and position reference face;
a plurality of conveyor tables including a first conveyor table fixedly coupled to the work table through the first face and a second conveyor table fixedly coupled to the work table through the second face;
a vision system monitoring the work table and monitoring each of the conveyor tables;
a controllable robotic arm suspended from the horizontally-arranged frame section and having a range of motion that enables an attached end-effector to access the conveyor tables and the work table; and
a programmable controller configured to monitor signal inputs from the vision system, control the robotic arm to pick a component from one of the conveyor tables, execute an assembly task with the component and transport an assembled product onto one of the conveyor tables in either a first workstation configuration or a second workstation configuration.

13. The autonomous workstation of claim 12 , wherein the first workstation configuration comprises the first conveyor table fixedly coupled to the work table through the first face to transfer the component within the range of motion of the robotic arm and the second conveyor table fixedly coupled to the work table through the second face to receive the assembled product transported from the work table.

14. The autonomous workstation of claim 12 , wherein the second workstation configuration comprises the second conveyor table fixedly coupled to the work table through the second face to transfer the component within the range of motion of the robotic arm and the first conveyor table fixedly coupled to the work table through the first face to receive the assembled product transported from the work table.

15. An assembly system, comprising:
a plurality of interchangeable autonomous workstations, each workstation including:
a multi-faced superstructure including a horizontally-arranged frame section supported on a plurality of posts, the posts forming a plurality of vertical faces, each face arranged between adjacent pairs of the posts, the faces including first,

Assignees

• Gm Global Tech Operations Llc

Inventors

• Lin Yhu-Tin
• Abell Jeffrey A
• Spicer John Patrick

Classifications

• Y10T29/53091

  for work-holder for assembly or disassembly · CPC title

• Y10T29/53052

  including position sensor · CPC title

• H01M6/005

  Devices for making primary cells · CPC title

• Y10T29/53539

  including work conveyor · CPC title

• Y10T29/53365

  Multiple station assembly apparatus · CPC title