Small vertical lathes are equipped with a program control system, which can logically process programs with control codes or other symbolic instructions and decode them to move the machine tool and process parts. Its processed parts have high precision, stable quality, high positioning accuracy and repeatable positioning accuracy, and it is easier to ensure the consistency of the dimensions of a batch of parts. As long as the process design and procedures are correct and reasonable, coupled with careful operation, the parts can be guaranteed to obtain higher quality. The processing accuracy also facilitates quality control of the brass cnc machine process.Here are five things to consider when using a small vertical lathe:
1. Pay attention to the contact between the grinding wheel and the workpiece
When the surface of the workpiece contacts the grinding wheel, a continuous hissing sound can be heard. The water stains on the surface of the workpiece can be taken away by the grinding wheel. At the same time, weak sparks can be seen. You can increase the coolant. The concentration of the coolant is slightly higher than that of ordinary saponified grinding fluid. , but requires filtering and cleaning before feeding. The feed amount per time is 0.005mm per double stroke, and the grinding is completed until there is no spark. At this time, press the transverse feed handwheel in the feed direction to make the grinding wheel slightly advance toward the workpiece without feeding, which is equivalent to polishing the workpiece once. This does not guarantee that the surface roughness of the workpiece can reach Ra0.02μm.
2. Prevent the expansion of the workpiece
When grinding in summer, the machine tool lighting can be close to the workpiece to prevent the heat dissipation of the lamp from causing the workpiece to expand and affect the grinding quality.
3. Local burns
This may be due to insufficient coolant, excessive feed, or a blunt grinding wheel.
4. There are local ripples on the surface of the workpiece
After machining medical parts, most of the surface of the workpiece is in good condition, but there are fine ripples in some parts. This may be caused by loose spindle, motor vibration or other reasons. Corresponding measures need to be taken according to the specific situation to solve it.
5. Roughing the surface of the workpiece
It may be caused by unclean coolant or floating sand on the surface of the grinding wheel. Strictly filter the coolant or brush off the floating sand.