ey points for safe operation of CNC machine tools

1. Operators shall wear tight work clothes with tight cuffs; Female comrades should wear protective helmets; Wear protective glasses during high-speed milling; Wear masks when milling iron castings; During operation, it is strictly prohibited to wear gloves to prevent hands from being rolled between the rotating tool and the workpiece.
2. Before operation, check whether all parts and safety devices of the milling machine are safe and reliable; Check whether the electrical part of the equipment is safe and reliable.
3. When loading and unloading workpieces, the workbench shall be retracted to a safe position. When tightening workpieces with a wrench, the force direction shall avoid the milling cutter to prevent the wrench from hitting the cutter or fixture when it slips.
4. When assembling and disassembling the milling cutter, it shall be padded with a special pad, and do not hold the milling cutter directly by hand.
5. When the work piece is not evenly divided and the work piece is not evenly held by the vise, the special clamping fixture shall be placed in the middle of the work piece, and the special clamping fixture shall be avoided as much as possible.
6. During rapid or automatic feed milling, it is not allowed to move the worktable to two extremes to avoid crushing the screw rod.
7. When the machine tool is running, it is not allowed to adjust and measure the workpiece and change the lubrication mode, so as to prevent the hand from touching the tool and hurting the fingers.
8. Do not brake by hand until the milling cutter rotation has stopped completely.
9. During milling, do not remove chips by hand or blow with your mouth to prevent chips from damaging skin and eyes.
10. In case of motorized rapid feed, the hand wheel clutch shall be opened to prevent injury caused by rapid rotation of the hand wheel.
11. When reversing the workbench, stop the reversing handle at the middle position first, and then reverse. Direct reversing is not allowed.
12. When milling keyway shafts or cutting thin workpieces, strictly prevent milling the dividing head or worktable.
13. When milling the plane, the cutter head with more than four cutter heads must be used, and the appropriate cutting parameters must be selected to prevent the vibration of the machine tool in milling.
14. After work, stop the worktable at the middle position and the lifting table falls to the lowest position.
15. For CNC vertical milling machine, pre selection of relevant work procedures, spindle speed, tool feed, tool trajectory and continuous offside shall be carried out according to the process requirements before work. Put the electrical knob in the “adjustment” position for commissioning. After confirming that there is no problem, put the electrical knob in the automatic or semi-automatic position for operation.

ken. tang@chengcg.com