4-axis CNC Gun Drilling Machine

1. Machine Tool Overview

1.1 Purpose of the machine tool

This machine tool is a high-efficiency, high-precision and highly automated CNC deep hole drilling machine that uses the external chip removal drilling method (gun drilling method) to drill small diameter holes. Through a single continuous drilling operation, it can replace the processing accuracy and surface roughness that usually require a combination of drilling, reaming and tapping processes to achieve.

It can handle both deep holes of a certain diameter and blind holes or stepped holes for processing.

This machine tool is mainly used for deep hole processing of shaft-type parts. With a four-axis structure, it can process four workpieces simultaneously.

Gun drill method: Internal oil supply and external chip removal. The cutting oil passes through the rotating joint at the end of the main shaft of the drill pipe box, the inner hole of the drill pipe box, and the inner hole of the tool rod, reaching the cutting edge. The cutting oil carries the chips through the V-shaped groove on the outside of the tool rod and is then discharged into the guide frame and finally into the chip removal machine.

 

 

 

 

 

 

 

 

 

 

 

1.2 Workpiece clamping

The headstock and the guide frame are equipped with a conical plate at the front end of the spindle. The hydraulic system controls the axial movement of the headstock spindle. By using the conical plate and the chamfers at both ends of the workpiece, the machine automatically clamps and positions the workpiece. When ordering the machine, the user needs to provide the chamfer dimensions at both ends of the workpiece and the dimensions of the workpiece.

 

 

 

 

 

 

 

 

 

 

 

 

1.3 The machine tool adopts ball linear guides

 

 

 

 

 

 

 

1.4 CNC Control system：GSK

 

1.5 Drill pipe box

The main shaft rotates through the servo main motor driven by the synchronous belt and synchronous belt pulley. This enables stepless speed adjustment. The main shaft's rotational speed ranges from 500 to 6000 r/min. The main motor's power is 11 kw. One motor drives the rotation of two main shafts.

At the rear end of the main shaft, a Korean rotary joint is installed to provide stable cooling supply for deep hole processing, ensuring the normal cutting of the machine tool.

The movement of the drill pipe box is achieved using ball linear guides, which ensures the machine tool has a long service life.

 

1.6 Machine Bed

The structure of the bed is designed with three closed sides and well-arranged reinforcing plates, ensuring its rigidity meets the requirements of high-speed cutting. A T-shaped slot worktable is machined on it, and a tool feed system is installed.

 

1.7 Tool feed system: Used to drive the tool to perform feed motion

The servo motor drives the ball screw to achieve the feed motion of the cutting tool.

The nut on the ball screw is of a double-nut structure and is lubricated automatically by an automatic lubrication station at regular intervals and in fixed quantities.

Special ball screw bearings are installed at both ends of the screw, and a bearing structure of one end fixed and one end stretched is adopted.

 

 

 

 

 

 

 

2. Main parameters of the machine tool

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

3. Machine Tool Configuration

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

4. Machining Accuracy

Bearing skewness: The workpiece rotates 0.04mm per 100mm

Surface roughness: Ra 1.6 - 3.2 micrometers

Diameter accuracy: IT8 - IT10

 

If you are interested, please get in touch with me.
Wendy
📧Email：deepholedrilling@dzguanlu.com
📞WhatsApp：+86 15550468204
📞WeChat：+86 18353451737

Hot Tags: 4-axis cnc gun drilling machine, China, suppliers, manufacturers, factory, customized, price, cheap, company, cost, for sale