Gun drilling was primarily generated for drilling gun barrels. Manufacturing armament continually uses this common process. Common industries that use this kind of process include oil, gas exploration, energy, diesel fuel components, plastic injection molds and energy. BTA drilling differs from gun drilling due to the chip removal and coolant entry. A gun drill introduces coolant with the use of small holes within the machine together with chip removal using grooves outside the machine.
Gun drilling is the suitable method for a range of drilling depths and diameters. Small diameter and deep holes utilize gun drilling with certain equipment to maintain precision and straightness. The quill or sleeve does not revolve, but can slide in its bearing in a direction corresponding to its axis. The column of most gun drilling machines is built solid, rugged and is circular. It supports the quill or sleeve assembly and the head. The drill head is composed of the spindle, the sleeve, feed mechanism and electric motor.
The work table can be vertically adjusted to accommodate various heights of work. The base of gun-drilling machine maintains the entire machine and when bolted to the floor, guarantees best machining accuracy and vibration-free operation. Lubrication is essential to the friction and heat produced by the moving parts. Owners of gun drilling machines must follow the manual given by the manufacturers in order to perform proper lubrication procedures and to prolong the life of the machine.
Gun-drilling machine is practically designed in order to provide the best conditions in operating the gun drill. The drill can be run or held motionless if the work piece is rotated. The deep hole drilling machine is operational using high pressure pumps that primarily deliver lubricant. During the course of drilling, advancement can either be by work piece movement or by drill.
Parts of a Gun Drilling Machine
• Deep Hole Gun Drill
• Spindle Drive
• Chip Flipper/ Whip Guide
• Feed Drive
• Work piece
• High pressure Pump
• Guide bushing
The gun drill machine is supported by an anti-whip mechanism along the length of the shank and at the chip box rear. The chip box includes a chip deflector together with an end front bushing that guides the drill into the work piece. It also contains a lubricant and chips that are filtered and separated. Gun drilling machine comes in many differences, from spindle single manual models to CNC units with various spindles of different layouts. They can be part of a turning or machining center and integrated into transfer lines. Gun drilling is also becoming famous as retrofit packages for both CNC and conventional machines.