1, axle box overheating

(1) The spindle runs over speed for a long time and generates heat. Solution: Adjust the bearing clearance, properly reduce the spindle speed (not exceeding the maximum speed designed by this machine tool), and lubricate the bearing at high speed.

(2) The tight clearance of the spindle bearing generates heat. Solution: Refer to Section 4 to adjust the bearing clearance of the spindle.

(3) The bearing of the spindle is rusted and worn, which generates heat. After long-term fatigue use or in a humid environment, several parts of the spindle may be worn or rusted; If it is not used for a long time, the bearing will rust. Solution: Clean the bearing and adjust the grease or replace the bearing.

2, bed deformation

Improper installation of the machine tool will cause the deformation of the machine tool bed, which will make the big carriage move too tightly or get stuck. Solution: loosen the anchor bolt and restore it to its original state, and reinstall it to ensure that the foot of the bed is flush with the workbench (this solution is for the installation of new machine tools).

3. The guide rail enters the chip

Loosen the screws of the big carriage, and remove the guard plate and guard plate of the big carriage. Then, loosen the screws of the big carriage, remove the big carriage, and clean the carriage and guide rail with kerosene. It is necessary to replace the protective pads (wool felt) of large and small trays for a period of time to prevent iron filings from entering.

Instrument lathe belongs to simple horizontal lathe. Generally speaking, the machine tool with the largest workpiece machining diameter below 250mm belongs to the instrument lathe. Instrument lathe belongs to simple horizontal lathe. Generally speaking, the machine tool with the largest workpiece machining diameter below 250mm belongs to the instrument lathe. Instrument lathes are divided into ordinary type, hexagonal type, precision type and automatic type.