The operation method of the vertical drilling machine

Ⅰ. Preparations before Startup

1. Check that all components of the drilling machine are in good condition, the power lines are undamaged, the coolant level is higher than the lowest mark, and confirm that all safety protection devices are complete and effective.

2. Add oil to each oiling point according to the lubrication chart. Run the machine empty for 3 to 5 minutes to confirm that there is no abnormal noise during the main shaft operation.

3. Select the matching drill bit based on the hole diameter and material of the workpiece, clear the debris in the taper hole of the main shaft, and firmly clamp the drill bit. It is strictly forbidden to directly strike the drill bit with an iron hammer.

4. Use bench vise or special fixtures to clamp the workpiece. When the overhang length exceeds three times the diameter, add auxiliary supports. Adjust the torque of the T-slot bolts of the fixture to 25N·m to ensure that the workpiece is not loose.

Ⅱ. Formal Operating Procedures

1. Refer to the spindle speed nameplate and adjust the speed and feed rate when the machine is off. It is strictly forbidden to forcibly shift gears while the machine is in operation.

2. The start-up sequence is to start the oil pump first and then the main motor. Align the hole position of the workpiece to be processed with the center of the drill bit, and adjust the height of the worktable to meet the processing requirements.

3. When drilling, maintain uniform feed. When the drilling depth is greater than twice the hole diameter, withdraw the tool to remove chips for every 1 to 2mm feed. The manual feed torque should not exceed 85N·cm.

4. When the hole is about to be drilled through, immediately switch to manual low-speed feed to prevent the drill bit from breaking. When drilling through the hole, a protective pad must be added under the workpiece to prevent damage to the worktable.

When processing parts of the same specification in batches, the travel stop block is activated to limit the downward end point of the Z-axis, and the action gap error of the reset switch is controlled within ±0.03mm.

Ⅲ. Closing and Maintenance

1.After the drilling is completed, first lift the drill bit away from the workpiece, turn off the main motor, and wait until the spindle has completely stopped before removing the workpiece and the drill bit.

2. Clean the accumulated chips on the workbench, apply L-AN46 anti-rust lubricating oil on the guide rail surface, move all operating handles to the neutral position, and cut off the main power supply.

Ⅳ. Core Security Taboos

Gloves are strictly prohibited during operation. Long hair must be fully tucked into the work cap. Protective glasses must be worn throughout the operation.

During operation, it is strictly prohibited to directly remove iron filings by hand. Only iron hooks or brushes must be used for cleaning. It is strictly forbidden to wipe the rotating main shaft and drill bit with cotton yarn.

When the equipment makes abnormal noises, experiences severe vibration or other anomalies, immediately press the emergency stop button to shut down the machine for inspection. Do not restart the machine until the fault is eliminated.