Automation of Manual Fixing Axle ARM Bush into the ABS Sleeve and Ensuring Safety to the Workers.

Abstract

The main objective of the project is to eliminate repetitious work of hammering the bush into the sleeve and ensuring the safety to the workers by introducing the hydraulic press. Here the manual handling of hammering the bush is converted into partial automation studying the motion of the worker. A 16 ton press is introduced for this function with 100 litres of 68 grade oil and star delta starter with 10 HP capacities. After BS IV norms, ABS(Anti-lock Breaking System) came in an important position of modern world. To facilitate the effective sensing of speed, a bush is inserted into the sleeve of the front axle arm. In front axle assembly this operation of manual hammering is carried out This type of axle arm comprises of different types based on the different model of vehicles. The main aim is to eliminate the manual process into semi-automatic condition considering the safety precautions to the workers. This hammering process includes a 3 to 4 hammering strokes to insert the bush into the sleeve. So we searched for many process through which the manual Hammering can be eliminated. Two emerging process involved in reciprocating motions are1.Using hydraulics.2.Using pneumatics.As pneumatics works under compressed air and it is quite difficult to control the speed, in the case of hydraulics which uses oil as medium it is easy to control the speed. So we choose hydraulic as the best suitable for this operation. Double acting cylinder which is cheap is most suited in cost wise also but managing the resource, we came to know that an old unused hydraulic press is there. So our guide helped us in setting up the hydraulic press. Again we had a problem in holding the axle arm while pressing the bush. We are in a situation to facilitate the holding device to hold all types of axle arm and made a bush holding device. So we displaced the existing ram plate in the hydraulic press as such it can support all types of axle arm. We also designed and fabricated the bush holding devices which effectively supports the bush to its sleeve. The work holding device i.e., axle arm holder and bush holding devices are designed and fabricated for the effective functioning of hydraulic pressing. Due to this semi-automatic function the injuries happening in manual handling is avoided thus safety to the workers is ensured.