Deep Hole Gun Drilling Machine

Description Of Deep Hole Gun Drilling Machine:

This machine tool is a special deep-hole drilling machine with high efficiency, high precision and high automation. It adopts the external chip removal drilling method (gun drilling method), and can replace the drilling, expanding and reaming process which can only be achieved by one continuous drilling. Machining accuracy and surface roughness. This machine tool adopts digital control system, which not only has the function of single action, but also has the function of automatic circulation. In order to provide processing efficiency, this model is also equipped with 2 or 4 power head structures. Therefore, it is suitable for small batch processing, especially for the processing requirements of mass production. The machine tool can drill through holes, blind holes, stepped holes, and can also process eccentric holes and inclined oil holes with special tooling.

Deep Hole Gun Drilling Machine features:

◆ Bed body and the box body is made of high quality cast iron casting, with good rigidity and stability.

◆ It doesn't need to return cutting tool in the process of drilling deep hole.

◆ It adopts CNC control system, a high degree of automation.

◆ Feed movement is driven by AC servo motor, and is driven by ball screw pair, and it is stepless speed regulation.

◆ It adopts sliding guide rail, moving parts bottom with special material, low speed running smoothly, without crawling.

◆ The drilling bar box is stepless speed regulation.

◆ The bearing of spindle and guideway adopt automatic intermittent lubrication, etc.

◆ High pressure cooling system adopts that frequency conversion motor drive gear pump, and the immersion cooler can control the oil temperature.

◆ It adopts automatic chip removal machine.

◆ It adopts all closed protective cover, and it is convenient to observe and good appearance.

◆ With multiple automatic monitoring device.

Precion Deep Hole Gun Drilling Machine range include:

Single Axis CNC Deep Hole Gun Drilling Machine

Single axis CNC Deep Hole Gun Drilling Machine is used for processing automobiles, motorcycles, oil pump, nozzle, engineering machinery, mining machinery, military industry and other industries, small and medium-sized deep hole axial workpiece of special equipment.

Four Axis CNC Deep Hole Gun Drilling Machine

Four Axis CNC Deep Hole Gun Drilling Machine is used for processing automobiles, motorcycles, oil pump, nozzle, engineering machinery, mining machinery, military industry and other industries, small and medium-sized deep hole axial workpiece of special equipment.

Double Axis CNC Deep Hole Gun Drilling Machine

CNC Deep Hole Gun Drilling Machine is used for processing automobiles, motorcycles, oil pump, nozzle, engineering machinery, mining machinery, military industry and other industries, small and medium-sized deep hole axial workpiece of special equipment.

Three Coordination Single Axis CNC Deep Hole Gun Drilling Machine

It adopt the way of gun drill processing (outside removal chip), tool rotating feed, workpiece is fixed on the workbench, the workbench can be vertical and lateral movement; Imported or domestic nc system with single action and function of automatic cycle.

Three Coordination Two Axis CNC Deep Hole Gun Drilling Machine

This is three coordination Two Axis CNC Deep Hole Gun Drilling Machine adopt the way of gun drill processing (outside removal chip), tool rotating feed, workpiece is fixed on the workbench, the workbench can be vertical and lateral movement; Imported or domestic nc system with single action and function of automatic cycle.

Three Coordination Four Axis CNC Deep Hole Gun Drilling Machine

ZKA21—series three coordinates Four Axis CNC Deep Hole Gun Drilling Machine adopt the way of gun drill processing (outside removal chip), tool rotating feed, workpiece is fixed on the workbench, the workbench can be vertical and lateral movement; Imported or domestic nc system with single action and function of automatic cycle.

Deep Hole Gun Drilling Machine: The Ultimate FAQ Guide

What is gun drilling machine?

The gun drilling machine is a method of outside chip removal, the cutting oil will enter the cutting tool inner and cutting area from the end of spindle’s joint,and the cutting oil will bring chip out through the cutting tool v type slot and workpiece inner hole. The cutting tool guide is by means of guide sleeve before entering the workpiece, and it will depend on self guide function to finish the drilling processing after entering the workpiece. It is suitable to drilling hole≤Φ40mm.

Deep hole drilling machine feature?

1) It has very high effiency, which compared with twist drill.In the general case, the hole depth and diameter ratio is≤200: 1. And it can complete drilling process by only one feed,and it doesn't need to return cutting tool. So gun drilling method can obtain excellent dimensional accuracy, straightness, surface roughness, and it can drill straight hole, oblique hole, cross hole, blind hole, etc. At the same time, all the process need high requirement about machine, cutting tool, cutting oil and relative equipment,so good quality and good company is important.

2) The deep hole processing is done in a closed state, so the cutting tool can not be directly observed, so you need more experience and our enginneer help to teach and know the process, you can do only by listening and looking at the chip, observing the machine load and cutting fluid pressure changes, vibration situation, etc. So as to judge the cutting process whether it is normal.

3) Cutting heat is not easy to send out. In general, 80% of cutting heat will be bring away by chip ,but gun drilling method is only 40%. So it must take effective way of forced cooling....Read More

What are the types of deep hole gun drilling machine tools?

According to the coordinate quantity, deep hole gun drilling machine tools can be divided into single coordinate, double coordinate and three coordinate machine tools.

According to the quantity of axis, they can be divided into single axis, double axis, four axis, eight axis, 48 axis and 56 axis.

Multi axis gun drill is mainly used for the processing of rollers in paper industry.

How is the deep hole gun drill machine used?

Deep hole drill is a drill used to process deep holes. When using deep hole drill, it needs to follow strict operation sequence, so as to make the machine tool and cutting tool play the greatest role and prolong the service life of the machine tool. Developing good operating habits for a long time plays a vital role in the stability of machine tools.

Method / step

1. Before use, check the storage capacity of the coolant, turn on the spindle of the motor for cooling, ensure the normal circulation of the coolant, and check whether the tool needs to be grinded again.

2. The workpiece must be firmly clamped, and the principle of "solid, correct and flat" must be followed. It is strictly prohibited to process in the place where the material is suspended.

3. When clamping the tool, first clean the dust and sundries in the rotating collet, install the collet into the pressure cap and put it right, then install it on the motor spindle together, insert the tool into the collet, and finally pin the pressure cap. It is forbidden to use the push-pull method when loosening the pressing cap of the upper and lower knives, but the rotation method must be used. When removing the knife, first clean the pressure cap and the waste on the rotation, loosen the pressure cap and take off the knife, then unscrew the pressure cap and take out the clamp head....Read More

The Deep Hole Processing Main Application Fields

At present, it is widely used in mould, automobile, boiler, coal, nuclear power, engineering machine, oil pump, hydraulic pressure, nozzle, war industry (guns), aerospace, medical equipment, tube plate, textile machinery, paper machine,iron and steel (roll), feed machinery, crankshaft, etc.

What is the basic structure of gundrill machine?

1. BED: the structure of the bed adopt three sides closed and a reasonable layout reinforcement rib, so it has the good rigidity, the headstock or hydraulic tailstock or special fixture is installed in T slot worktable and drill pipe box carriage feed on sliding table. It also has a wide and deep back oil groove around the bed, ensure the coolant liquid flow smoothly back to oil tank.

2. headstock: there is a fixed speed. Headstock can move along axial movement according to the length of the workpiece, the rotary workpiece requires less than or equal to 100 mm in diameter. (optional part).

3. Drill pipe box: it adopts frequency conversion motor or spindle motor drive drill pipe rotation with stepless speed; Spindle bearings uses high precision angular contact ball bearings. Special mechanical seal device provide stable pressure and flow of cooling fluid for deep hole processing, so as to ensure the normal cutting; The drill pipe box feed carriage paste ptfe guide soft belt,which ensure the machine tool has a longer service life...Read More