Hochschule Karlsruhe Hochschule Karlsruhe - University of Applied Sciences
Hochschule Karlsruhe Hochschule Karlsruhe - University of Applied Sciences

PIPE | Proprioceptive parameter estimation for high-contact interactions between robot and environment

Ongoing project 04/2022 - 04/2027

Motivation

In the product creation process, a CAD assembly of the product to be produced is designed. Its sub-assemblies or components must be joined together in a certain way (plugged, clamped, pinned, etc.) as specified by the planning algorithm. A force control system is required for the assembly robot used so that the process forces can be maintained during joining. Traditionally, the control is parameterized once by an expert. For assembly lines where the product to be assembled does not change, this is sufficient, but also involves considerable costs. However, this procedure is uneconomical and time-consuming, particularly in the case of high product diversity with small quantities. Consequently, flexible parameterization of the automation line is absolutely essential here.

Overall goal

The aim is to automate the parameterization of robot systems by using prior knowledge from the product development process in order to achieve flexible adaptation to new tasks. In future, this will enable small and medium-sized enterprises to integrate intelligent and flexible production systems cost-effectively, even for small quantities.

Methodology

Data from the production development process is used. For example, CAD data contains information about the geometry and material of the respective components. An AutoEncoder structure is pre-trained using geometric primitives from the same object category. Transfer learning tailored to the specific process is then made possible using just a small amount of real data.