Design Jigs and Fixtures to Reduce Time in the Bevel Milling of Workpiece

Abstract

This research aims to reduce work time by designing and creating a drilling guide device and a workpiece clamping device, which are types of tools used in the industrial sector. Additionally, it involves statistical theory and Jig Fixture for mass production that meets standards. Before the improvement, the process of clamping the workpiece involved using an angle vice for clamping and milling the workpiece's angle. The installation of the device and milling the workpiece's angle took an average of 1–2 hours per piece. By comparing the time data before and after the creation of the drilling guide and workpiece clamping devices, it was found that the work time for the 45–degree angle milling process was reduced from an average of 31.01 minutes before the creation of the devices to an average of 15.77 minutes after their creation. This reduction of 15.45 minutes represents a 49.80% decrease in time and results in an annual cost savings of 44,976 baht.