Three Axis Gun Drilling And BTA Drilling Combined Machine

Three axis Gun drilling and BTA drilling combined machine

X-axis: Under CNC control, the workpiece moves horizontally with a stroke of 1500 mm. It adopts a double rectangular slide guide, with guide rail surfaces precision-ground and quenched to a hardness of HRC48-52. The servo motor drives the ball screw via a servo reducer for X-axis movement. A telescopic stainless steel protector covers the guide surface. During drilling, the worktable is automatically locked to the X-axis bed by the hydraulic system.

Y-axis: CNC-controlled vertical movement of the cutting tool, stroke 800 mm. Double rectangular slide guide, hardened and ground to HRC48-52. The servo motor, via a servo reducer, drives the ball screw for Y-axis movement. During drilling, the lifting slide is automatically locked to the Y-axis column by the hydraulic system. A counterweight block is used for balance.

Z-axis: The longitudinal feed of the tool is CNC-controlled to achieve a drilling depth of 1500 mm. It uses a roller-type heavy-duty linear guide, with the servo motor driving the ball screw through a servo reducer.

T-slot worktable: Dimensions (X × Z): 1800 mm × 2200 mm; T-slot width: 28 mm. The worktable moves along the X-axis bed.

Drill box (spindle box): Provides tool rotation. After deceleration by the servo motor, the front drive spindle rotates, facilitating tool changes and protecting the main motor. Spindle output speed is steplessly adjustable. Main motor power: 25 kW; maximum spindle output speed: 2000 r/min. Both gun drilling and BTA drilling share one set of spindles.

Drill bar support: Three sets, used to support the drill bar.

Guide frame: Shared by both gun drilling and BTA drilling. In gun drilling mode, the guide frame removes chips; in BTA mode, it supplies oil to the tool. The guide frame automatically clamps and unclamps the workpiece under hydraulic control.

Cooling system: Supplies oil to cutting tools and removes chips. Main components include a dirty oil tank, clean oil tank, chain plate chip conveyor, paper belt filter, circulation pump, one variable frequency pump, two fixed-quantity pumps, chip bucket, etc.

Safety guard: Simple protection at the worktable position without a top cover; the tool area is equipped with an oil pan.

Basic parts (bed, worktable, column, lifting slide, box, etc.) are made of resin sand and undergo two aging treatments.

Hydraulic system: Controls axial movement of the guide frame and workpiece clamping/unclamping. Also controls the hydraulic plates of the worktable and lifting slide to lock them in place.

Machine mainly Parameters:

Machine mainly configuration :

Machining accuracy:

Hole deviation: 0.1mm/100mm

Drilling roughness: Ra 1.6-6.3um

Hole accuracy: IT8-IT10

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