The DUOMI CNC Automatic Thermal Drilling and Tapping Machine is a globally recognized star product in CNC drilling and tapping, integrating efficiency, precision, and automation into one. Equipped with a high-precision control system, it enables a seamless one-stop process for automatic thermal drilling and tapping, significantly improving production efficiency and product quality.
Its advanced CNC programming ensures accurate positioning of every hole, while the high-speed rotating head guarantees uniform and reliable tapping force. With user-friendly operation and low maintenance costs, it is the ideal choice for enterprises seeking automation upgrades, cost reduction, and efficiency improvement.
In the CNC thermal drilling and tapping program, a center drill is first used for positioning. The program is as follows:
G91 G28 Z0 G17 G49 G80 G40 T1 M6 G90 G54 G0 X0 Y0 M3 S1000 GH3 H1 Z50 M8 G0 Z10 G98 G81 X0 Y0 Z-1. R1 F100 (Specified hole position)
After completing the center drilling, proceed with the main drilling using a 5.0 drill bit. The program is as follows:
G80 G0 Z50 M9 M5 G91 G28 Z0 T2 M6 G90 G54 G0 X0 Y0 M3 S700 G43 H2 Z50 M8 G98 G83 Z-10. R1 Q2 F60 G80 G0 Z50 M9 M5 G91 G28 Z0
Next, proceed with tapping using an M6 tap. The program is as follows:
T3 M6 G90 G54 G0 X0 Y0 M3 S1000 G43 H3 Z50 M8 G98 G84 Z-10. R1 F1000 G80 G0 Z50 M9 M5 G91 G28 Z0
Finally, execute the program end command:
Y0 M30
Duomi's self-developed dual-head CNC thermal drilling system
This is a G-code example for a CNC machining center, primarily used for center drill positioning. Below is a line-by-line analysis of the program:
G90 G21 – Set absolute positioning mode (G90) and use millimeters as the unit (G21).
T1 M06 – Select the center drill tool (T1) and execute tool change (M06).
S1500 M03 – Set the spindle speed to 1500 RPM and rotate clockwise (M03).
G00 X50 Y50 – Rapidly move (G00) to the drilling start position at (X50, Y50) (example coordinates).
G43 H1 Z5 – Apply tool length compensation (H1) and move the Z-axis to a safe height of 5mm.
G81 R2 Z-5 F200 – Perform center drilling using a fixed drilling cycle (G81):
R2 – Retract plane at Z=2mm after drilling.
Z-5 – Drill to a depth of -5mm.
F200 – Feed rate set to 200 mm/min.
G80 – Cancel the fixed drilling cycle (G81).
G00 Z50 – Rapidly return to the safe height (Z=50mm).
M30 – End the program and reset to the beginning.
This program accurately positions and drills a center hole, preparing for subsequent drilling or tapping operations. Parameters such as spindle speed (S), feed rate (F), and depth (Z) can be adjusted based on material and tool requirements.
The entire drilling and tapping process is achieved through the above program code. Parameters need to be adjusted based on actual conditions to meet specific requirements.
