05-11-2014, 09:56 AM
Abstracts: Generally industries use manual process for R-ring fitting in housing of direction control valve. The problem related with this approach is that manual fitting is have different kind of problem like high fatigue of worker and repetitive task which is irritative so we try to solve this problem by automate the manual process and decrease effort. For this we want to make such kind of machine that fits all rings on housing simultaneously by automation. For that we would have to separate five rings after that we would have to position five rings in alignment into the holes of the housing. After five rings take their position we can easily insert rings into holes of housing by simple punching mechanism. The rings can be separated by belt conveyer and stopper plate for ring that allow only one ring to pass in to one of the groove made in belt. We will give the velocity to ring so that they cannot trap inside machine for that we will give height between the belt drive and die by inserting ring transferring plate between them, having slots according to ring outer diameter. The ring transferring plate will give velocity to ring and convey to the slots of die. The die will align the ring in axis with housing holes and the punch will presses the rings and move it to the holes of housing. Machine will be compact that can be placed on the work table of assembly station and easily operated by worker by two hand rule of method study such that operator can hold the housing with one hand and operate the machine with other hand. After implementing that machine, operator can relax in two operation in total assembly. One is that to rotate heavy housing block about 2 kg weight and second is to fit r-ring one by one in holes of housing which is very irritative and time consuming. This machine will be used for the fitting of R-ring on assembly of NG-10 hydraulic valves. This is automatic machine for fitting R-ring on valves which reduce time and increase productivity. One of the other advantage of using this machine is it also prevent to allow the dust in highly finishes holes of housing which can damage the surface finish of holes.