Multi Spindle Drilling Machines are generally used for drilling number of holes simultaneous together. They are used in mechanical industry in order to increase the productivity of machining system and to reduce the operation time. For example, gang drills and many screw machines are Multi Spindle machines.Jan 9, 2017
What is multiple drill head drilling machine?
The drill head of a multi-spindle machine typically consists of a number of spindles that have been mounted on ball bearings that are driven by gears. ... They increase the productivity in a company and they drill holes on the same machinery of the same size which allows the holes to be interchangeable.
What is spindle in drilling machine?
The spindle holds the drill or cutting tools and revolves in a fixed position in a sleeve. In most drilling machines, the spindle is vertical and the work is supported on a horizontal table. The sleeve or quill assembly does not revolve but may. slide in its bearing in a direction parallel to its axis.
How is the drill held in spindle?
The drill is held in a rotating spindle and is fed into the workpiece, which is usually clamped in a vise resting on a table. The drill may be gripped in a chuck with three jaws that move radially in unison, or it may have a tapered shank that fits into a tapered hole in the spindle.
What is the function of spindle in drilling machine?
The spindle holds the drill (cutting tool) and revolves in a fixed position in a sleeve. The sleeve (quill) does not revolve but may slide in its bearing in a direction parallel to its axis. When the sleeve carrying the spindle with a cutting tool is lowered, the cutting tool is fed into the workpiece.