Versatile Work Holding Device for Hole Drilling in Small-Scale Production Workshops
This devise addresses the inadequacies of providing a quick means of holding jobs of irregular shapes such as are encountered in small scale fabrication workshops. The conventional bench vise often does not provide the adequate grip for such shapes so that attachments in the form of V blocks are usually provided to enhance the grip before drilling operations are carried out. This versatile work holding device enables fabricators to perform drilling and other production operations on a work piece. This device produced from mild steel plates uses the toggle principle to provide rapid grip. Comparative tests on time span in the use of this device and the bench vice for job set up, production operation and then disassembly showed that time is gained with use of the device.
Prof. A.O. Akii Ibhadode
J. U. Okoli and T. K. Jinyemiema, "Versatile Work Holding Device for Hole Drilling in Small-Scale Production Workshops ", Advanced Materials Research, Vols. 18-19, pp. 481-486, 2007