Integration and evaluation of implementing Linear Systems with ErgoSpin

Sammanfattning: Production lines for assembling two parts by screwing require flexible positioning and accurate tightening torque. Working with screwed products in process lines can cause bodily harm. The project aims to develop an application to compensate for the monotonous and tiring work. This report reviews the integration of Bosch Rexroth’s Compact module, and Linear module with an ErgoSpin. The project’s objective entails a turnkey solution for a developed application to be implemented in production lines. The ErgoSpin is a fast, self-tightened screwdriver placed over the screw by measuring the angle, gradient, and tension with the optimal tightening torque. The integration of the products is both electrical and mechanical. Mechanical elements were designed to merge the products into an application. The electrical interfaces between the products were connected and programmed through Bosch Rexroth IndraDrive, and a motion control system. By integrating these products, and implementing them in a production line, the work can be performed more efficiently, and the employees can focus on other tasks. The application is intended to work beside a conveyor unit in assembly stations. Tests were performed to assemble plates with different distances between the hotels and different sizes of screws. The test measured the time it took the application to assemble parts with different distances between the holes and the actual tightening torque it entailed. The results from the tests indicated that optimal tightening torque was achieved for all tests and that the execution of the application has no influence on the mechanical performance. The time difference for the various distances between the holes was almost negligible, and indicated rapid changes between the holes. The time difference between the different screw dimensions proves a slight increase in time for the larger dimensions. The risk assessment was conducted on the application by FMEA to account for all potential hazards based on events in the application’s area of use. The FMEA also provides the proposed actions to prevent the risks.