Industrial Projects @ AKGEC-SIEMENS PLM : Completed Projects

Theojansen mechanism & its Assembly

In recent years there has been much interest stimulated in dynamic walking in bipedal robotics and legged locomotion in general. Part of the reason for this interest is the need for robots which can operate in human oriented environments. Humans present a very elegant model of locomotion to emulate. Bipedal robots will operate in a human environment with much greater efficiency than any other type of robot yet devised. It is hoped that eventually bipedal robots can be used to complete tasks which are too difficult or dangerous for humans. This includes applications such as working in extreme environmental conditions (such as in fire rescue operations), with toxic gases or chemicals, with explosives (such as land mines) or as an aide to humans in similar situations.

Also, a useful by-product of research into bipedal robotics will be the enhancement of prosthetic devices. The state of research into bipedal robotics has progressed to the stage where dynamic walking gaits are being studied. Human beings usually employ a dynamic gait when walking as it is faster and more efficient than static walking. Dynamic walking is characterised by a small period in the walking cycle where the center of gravity of the robot is not projected vertically onto the area of either foot. This requires there to be a period of controlled instability in the gait cycle, which is difficult to accomplish unless the mechanical system has been designed bearing this in mind. There have already been some bipedal robots which have realised this goal to varying degrees of success. Most notably are the Honda P-2 and P-3 robots. The P-2 robot alone is reputed to have a development cost of $3 million dollars. This particular biped robot is human sized with a mass of over 200 kg. The robot can climb stairs and push objects, and incorporates a virtual-reality remote manipulator control which allows a remote operator to manipulate the gripper on the robot. However, unless similar robots can be developed for only a fraction of the cost, they cannot be easily transformed for use in their intended application. Moreover, research institutions cannot participate in developing such technologies while they are so expensive. This thesis presents a small scale low cost bipedal walking robot which can be used to investigate control and stability issues inherent in life sized robots.

FEM Analysis of Bike Frame

Factory automation is currently expected to improve productivity, quality and/or safety in the production industry, especially for functions depending on workers. At production sites, parts in bins are arranged and transferred by workers. Parts such as bolts are stored in bins, and it is easy for humans to handle several types of parts at a time. However, it is extremely difficult for robots to measure parts in bins with a sensor, recognize individual parts, and take them out.

This project will allow industrial robots to work in bin picking, payload handling, assembly, and similar operations. The project integrates advanced technologies; such as sensing and measurement technology, control technology, and mechanics technology, to automate operations not possible for conventional robots.

Fixture Design for cylindrical product and process parameter optimization for robotic MIG welding

Robotic welding requires specialized fixtures to accurately hold the work piece during the welding operation. Fixture design reduces cycle time and operator labor while increasing functionality; and allows complex welding operations.

While robotic welding can vastly improve productivity over semiautomatic welding, the level of efficiency of automation depends upon the thoughtful design of the fixturing for maximum productivity. Robotic welding is economical when properly applied, but it can be terribly inefficient and cost-prohibitive when simple fixture design considerations are overlooked. Many productivity gains are realized, or lost, at the design stage and while parts fixturing performs a role that is simple, good fixture design is critical to the success of a robotic welding system.

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