WWORK-HOLDING DEVICES IN DRILLIING MACHINE

Work-holding devices 

. The purpose of Work-holding devices

. name the devices used for holding work

. the precautions to be observed while using Work-holding devices

workpieces to be drilled should be properly held or clamped to prevent from rotating along with the drill. Improperly secured work is not only a danger to the operator but also cause inaccurate work, and breakage to the drill. Various devices are used to  ensure proper holding.

The machine vice

Most of the drilling work can be held in a machine vice. Ensure that the Driill does not drill through the vice after it has passed through the work. For this purpose, the work can be lifted upa and secured on parallel blocks providing a gap between the work and the bottom on the vice👇   

 workpieces which are not accurate may be supported by wooden pieces 👇

Clamps and Bolts

Driil machine tables are provided with T-slots for fitting bolts heads. Using clamps and bolts, the workpieces can be held very rigidly. While using this method, the packing should be, as far as possible, of the same height as the work, and the bolt nearer to the work.👇

There are many types of clamps and it is necessary to determine the clamping method according to the work👇