Ordinary Lathe Operating Procedures

1. Load the workpiece, start the lubricating oil pump first, and make the oil pressure reach the requirements of the machine tool before starting.
2. When adjusting the exchange gear frame and the wheel, the power must be cut off. After adjustment, all bolts must be tightened, the wrench should be removed in time, and the workpiece should be disconnected for trial operation.
3. After loading and unloading the workpiece, the chuck wrench and the floating parts of the workpiece should be removed immediately.
4. The tailstock, crank handle, etc. of the machine tool are adjusted to the appropriate position according to the processing needs, and tightened or clamped.
5. Workpieces, cutting tools and fixtures must be firmly clamped. The floating power tool must extend the tool lead part into the workpiece before starting the machine tool.
6. When using the center stand or tool rest, the center must be adjusted and have good lubrication and supporting contact surfaces.
7. When processing long materials, the protruding part behind the spindle should not be too long. If it is too long, a supporting frame should be installed and a danger sign should be hung.
8. When feeding, the knife should approach the work slowly to avoid collision; the speed of the carriage back and forth should be even. When changing tools, the tool and workpiece must be kept at an appropriate distance.
9. The cutting tool must be tightened, and the extension length of the turning tool generally does not exceed 2.5 times the thickness of the tool.
10. When processing eccentric parts, there must be appropriate counterweights to balance the center of gravity of the chuck, and the vehicle speed must be appropriate.
11. Protective measures must be taken to clamp workpieces beyond the machine body.
12. The tool setting adjustment must be slow. When the tool tip is 40-60 mm away from the workpiece processing part, manual or working feed should be used instead. Direct cutting of the tool with rapid feed is not allowed.
13. When polishing the workpiece with a file, the tool holder should be moved back to a safe position, and the operator should face the chuck, with the right hand in front and the left hand behind. It is forbidden to use files to process workpieces with keyways and square holes on the surface.
14. When polishing the outer circle of the workpiece with emery cloth, the operator should hold both ends of the emery cloth with both hands according to the posture specified in the above article for polishing. It is forbidden to use the emery cloth between your fingers to polish the inner hole.
15. When the tool is automatically fed, the tool holder should be adjusted to be flush with the base to prevent the base from hitting the chuck.
16. When cutting large and heavy workpieces or materials, sufficient processing allowance should be left.