Industrial Robot Mechanical Design: Difference between revisions

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(Expanded on toolchain for toolpaths)
 
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=Toolchain for Toolpaths=
#REDIRECT [[Industrial Robot/Research Development]]
 
CAD (FreeCAD) > export (stl, dxf, svg) > CAM (PyCAM) > export (gcode) > Machine Controller (EMC2) > export (logic signals) > Machine (CNC milling, various) > export (work)
 
In FreeCAD, a 3d mesh drawing can be exported as an stl file; alternatively, a 2d drawing can be exported as a dxf or svg file. Any of these files can then be imported in PyCAM, in which toolpaths can be generated for those drawings. These toolpaths can then be exported from PyCAM as a gcode file. EMC2 can then import the gcode file and simulate the toolpath, plus send logic signals to an external electronic controller that moves a machine to correspond to the toolpath. This toolchain allows digital fabrication to be utilized for the construction of the industrial robot.
 
=Mechanical Concept=
 
[[Image:6axisrobotmech.png|300px]]
[[Image:Minimum Frame Robot.png|300px]]
[[Image:minframerobotCAD.png|500px]]
[[Image:CADRobot1.png|500px]]
 
=Motors=
Brushed motors wear out relatively rapidly. Yet, the industrial robot must be designed for lifetime use. Therefore, AC brushless or DC brushless motors seem like the better design choice.
 
The major difference between AC brushless and DC brushless motors is that the former has a sinusoidal back emf and the latter has a rectangular/trapezoidal back emf. For simplicity of motor control, the brushless DC motor seems to be the optimal choice for the industrial robot.
 
[[Category: Industrial Robot]]
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Latest revision as of 11:40, 28 January 2012

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