031. 3 Sc hi. Manufacturing bases. Hand-held Machines. In any case the right drill chuck
inaccurate or useless. Treat them like the high precision tools they are. Types of Drilling Machines. Many different kinds of drilling machines are available because there are so many different kinds of holes. The drill presses commonly found in millwright shops are: • sensitive drill presses,. • upright drill presses,. • hand drills,.
PURPOSE. This chapter contains basic information pertaining to drilling machines. A drilling machine comes in many shapes and sizes, from small hand-held power drills to bench mounted and finally floor-mounted models. They can perform operations other than drilling, such as countersinking, counterboring, reaming
The 2A135 Wertical 3rilling Machine is designed for drilling, boring, realining, facing and tapping operations. 9 spindle speeds and i feeds are obtained through speed and feed gear boxes. The automatic feed is engaged and disengaged by turning the hand-feed wheel, During the automatic feed the spindle can be fed.
Drilling machines, or drill presses, are primarily used to drill or enlarge a cylindrical hole in a workpiece or part. The chief operation performed on the drill press is drilling, but other possible operations include: reaming, countersinking, counterboring, and tapping. The floor type drill press used in the Student Shop is a very
1) The lathe is one of the most important machines in any workshop. 2) Its main for many other purposes such as drilling, threading, grinding, milling, turning, .. 2) Plain turning,. 3) Step turning,. 4) Taper turning,. 5) Drilling,. 6) Reaming,. 7) Boring,. Parting tool. Turning tool. Right hand turning tool. Left hand turning tool.
These modern sophisticated drilling machines are suitable for piece or batch production of precision jobs. (b) General purpose drilling machines with more specific use. • Hand drills. Unlike the grouted stationary drilling machines, the hand drill is a portable drilling device which is mostly held in hand and used at the.
The different types of drilling machines are: 1. Portable drilling machine (or) Hand drilling machine. 2. Sensitive drilling machine (or) Bench drilling machine. 3. Upright drilling machine. 4. Radial drilling machine. 5. Gang drilling machine. 6. Multiple spindle drilling machine. 7. Deep hole drilling machine. 2.3.1 Portable
Clamped in position and the drill rotates to make a hole. Types. 1) Based on construction: Portable,. Sensitive,. Radial,. up-right,. Gang,. Multi-spindle. 2) Based on Feed: Hand driven. Power driven. Components of drilling machine. Spindle. The spindle holds the drill or cutting tools and revolves in a fixed position in a sleeve

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February 2018