Robot Workpiece Handling with Active Edge Milling
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Solution Overview
Problem
Existing systems for processing panel-shaped workpieces, such as wood or wood substitutes, lack efficiency in post-processing operations as the handling robot is limited to handling and does not actively participate in the machining process, restricting further processing capabilities beyond the machine tool.
Innovation Solution
A robot with six degrees of freedom is integrated to interact with spatially separate processing units, taking over feed components and moving workpieces during processing, enabling additional machining operations like edge trimming and formatting at separate stations, allowing for more comprehensive processing beyond the machine tool's capabilities.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Extent of automation
If a handling robot is used to place and transport workpieces, then workpiece handling and transport are automated, but the robot cannot actively participate in machining operations
Solution Approach 1:
The robot is equipped with both handling capabilities (suction gripper) and machining capabilities (milling tool), enabling it to perform multiple functions including workpiece handling, transport, and active participation in machining operations such as edge banding and formatting
Solution Approach 2:
The robot combines workpiece handling functions and machining functions into a single integrated system, allowing the same robotic arm to both hold and transport workpieces and to perform machining operations through tool changes
2Device complexity
If the robot is limited to handling functions only, then the system structure is simpler, but post-processing capabilities are restricted
Solution Approach 1:
The robot's functionality is made dynamic through tool changing capabilities, allowing it to switch between handling tools (suction gripper) and machining tools (milling cutter), thereby adapting to different operational requirements without permanent system modifications
3Adaptability or versatility
If additional processing stations are added for post-processing, then processing capabilities are expanded, but system complexity increases
Solution Approach 1:
The robot serves as a universal platform that can perform both handling and machining operations, eliminating the need for separate dedicated handling robots and machining centers, thereby expanding processing capabilities while controlling system complexity
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This approach enhances the automation and efficiency of post-processing operations by enabling the robot to actively assist in machining, allowing for advanced operations like flush milling, drilling, and fitting installation, thereby expanding the processing capabilities beyond the machine tool's limitations.
Implementation Method 1
a suction traverse (12) which holds a plate-shaped workpiece (3, 4)
Data Source
AI summary
The arrangement has a machine tool (1) i.e. program controlled machining center, with work places (2.1, 2.2) for receiving work-pieces (3, 4) and an edge processing device (6) i.e. format milling unit. A robot (10) with a work-piece receiving device (12) is arranged near a robot arm (11) in the periphery of the tool, and processing stations (15, 17) spatially separated from the tool is arranged within the region of the arm. Processing devices (16, 18) and the arm are movable relative to one another with which the work-pieces are maintained at the device (12), during processing at the stations.