As soon as the field of automotive industry is growing on a fast pace in every sector of our society, the necessity is also increasing towards advanced robotics. However there are many traditional robots which are fast and can also handle the heavy loads, but there is a lack of positioning accuracy and that’s why hexapods robots came into light.
These hexapods robots have a great contribution in the precision alignment along with micro manufacturing but they all were too precise for the automotive industry and also the situation is changing rapidly. There are modern hexapods controllers which can communicate directly with the PLC or CNC controller through the field bus interfaces.
In addition to this, it is also integrating into the automation environment. Applications are exist as the supplement to the conventional industrial robots or for the worker in automated processes in the quality assurance, test and metrology as well as prototype design and evolution.
The introduction of the hexapods is not new to the automotive industry as one of the first industrial applications of parallel kinematic robots was the tire testing under the various angles and loads. Dr. Eric Gough designed the fits machine who was working for the manufacturer in England.
There is a requirement of much higher precisions and fits tier automotive supplier which have discovered hexapods for coordinate the measuring machines to calibrate headlamps by the today’s applications along with for the alignment of optical components that are becoming more popular for the autonomous driving. Through the hexapods, the precision laser welding can be improved.
Necessity of Hexapods: These hexapods are of smaller sizes and have been equipped with higher stiffness, dynamics as well as precision and greater flexibility which allow rotations for the any center in space and multiple coordinate systems. There are also many benefits such as lack of dragging cables as common with classical serial multi-axis positioning systems.
Control: The process of the parallel coordinate transformation is entirely visible to the users as all 6 degrees of freedom are commanded in coordinates. There can be a use of PLC standard language and controller can also communicate with the hexapods through the standard protocol. This system can behave as an intelligent multi-axis drive on the bus.
Simulation software: Application development can be done before the hardware is installed through the simulation software and a virtual controller.