Abstract
Currently, the use of work holding devices such as clamps greatly affects the productivity and economy of a large number of processed workpieces. This device reduces the production cost and ensures interchangeability of machined work pieces. In fixture design for the manufacturing of part, there are various challenges and serious problems in industry. Precision is one of the most important issues in the machining process and main cause for rejection is the part static deformation and dynamic vibration. And also hectic to worker for job mounting, and perpendicular error of drill with vertical axis, which influence the efficiency and quality of fixture design. For accuracy of drill at specific point the job is to be fixed properly. In order to mount job accurately hydraulic clamps are used which results in perpendicular accuracy of drill with vertical axis is up to 20 microns.
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