What are the safe operation procedures of lathe workers? First, you should wear labor protection articles at work, tighten the cuffs of your coat, and put long hair or braids of lesbians in your hat. Gloves, sandals and scarves are prohibited.
Second, the operator must be familiar with the structure, performance, use characteristics and maintenance and warranty technology of this equipment, and it is strictly forbidden to overload this equipment.
Three, before driving, carefully check the equipment parts in good condition, in accordance with the provisions, the lubrication parts of good oil, check the oil, see whether the oil circuit is smooth. Idle at low speed 1-2 minutes, and start work only after confirming that the equipment is in good condition.
Four, it is forbidden to put tools and metal objects on the machine tool guide surface, paint surface and moving parts, and it is forbidden to knock or straighten the workpiece on the machine tool guide rail.
Five, the correct installation of tools, loading card work must be solid and reliable. When machining large eccentric workpieces, balance should be carried out. When off duty, if the workpiece is not unloaded, it should be supported by a jack.
Six, mobile tool rest, tailstock or carriage, must ensure that the guide surface clean and well lubricated. Use the center frame and heel rest, and always check whether the lubrication at the contact point with the workpiece is good.
Seven, when turning the workpiece with a file, the right hand should be in front, the left hand should be behind, and the body should leave the chuck. Files must be equipped with handles as required.
Eight, lathe starts, are not allowed to leave work. If you need to leave, stop immediately and turn the speed change handle to the parking position. Do not open it by others, and do not stay away from the operation. When parking at work, you must turn on the switch and take back the tools.
Nine, when the lathe is running, it is forbidden to change speed. When the machine is changing speed, it is forbidden to use the pedal. When screwing the screw, first check whether the forward and reverse knobs are odd jobs and reliable.
10. It is forbidden to touch and wipe the working workpiece with cotton cloth (yarn). When changing tools, the tool rest should be far away from the chuck and workpiece. When the lathe is not stopped, it is not allowed to measure and process parts. Do not stop rotating the chuck by hand. When removing chips, use a special hook, not directly remove them by hand.
Eleven, cutting material is not broken, broken, car hole, are not allowed to use a file to reverse the edges and corners, use emery cloth to polish the hole, are not allowed to put your fingers or arms into it to polish.
Twelve, after the work, the machine tool should be wiped clean, do a good job of environmental sanitation, do a good job of succession, and fill in the equipment operation records.
Job responsibilities of lathe operators
1, strictly implement the general post responsibility standard for front-line employees.
2, familiar with and master the drawings and technical requirements.
3. Check the tooling and measuring tools in advance.
4, check whether the equipment condition is normal, oil is clear.
5, check whether the blank and semi-finished products meet the processing requirements.
6. Assist inspectors in sampling inspection.
7, do a good job in the handover procedures of semi-finished products.
8. Do a good job in the relationship between the upper and lower procedures and be polite to others.
9, do a good job in the maintenance and storage of equipment and its accessories.
10, cooperate with lubricator to lubricate equipment.
1 1, machine tool failure, assist the mechanic.
Further reading: the experience of lathe work practice. The one-week internship as a lathe worker soon ended. Looking back on the knowledge and skills learned in the past week, I have a deep understanding. First of all, theoretical knowledge and safety education are essential. Before turning the lathe to cut parts, the teacher spent a whole day teaching us theoretical knowledge. Although the first day was boring, it was only one of the most important materials. For example, when clamping a tool, the vertical distance between the blade and the bottom of the handle is 143.5mm, which reduces the number of times the tool is aligned with the center of the part. When installing tools, the gasket is directly measured with a ruler, and after 143.5mm, it is basically equal to the center of the part, which saves the time for tool alignment. When clamping the workpiece, it must be tightened with a booster to avoid accidents caused by parts flying out, and use tools correctly. Practicing rocking lathe is also an exam that every student must pass before practicing lathe every time. Only by shaking the big and middle drag plates skillfully can we make necessary preparations for turning parts and avoid the collision between tools and parts. Because the lathe we practiced this time is different from the lathe we practiced on the job, there are differences in automatic feeding and speed adjustment. After understanding some theoretical knowledge of lathe, the next day, we began to formally process parts.
The third part is tapered and needs to turn the necessary dial. When turning, first shake the big carriage to the specified scale, then aim the middle carriage at the tool, then the small carriage exits and the big carriage does not move. Finally, after adjusting the scale, use a small carriage to manually feed and turn out the taper. First of all, you need to try cutting, measure with a universal square, and continue to rotate the tool under the condition of ensuring the correct angle. If there is a gap at the small end, it means that the angle is increased, otherwise it is small, and you need to readjust the degree and try again. Before machining the taper, the parts must not be removed from the chuck, otherwise the turned taper will deviate from the concentric axis of the circle and produce a taper curve.
The last day's processing is just some boring basic operations. First of all, be sure to drill holes. When using a drill, be sure to add coolant. When the drill bit enters the parts and drills through, it should be done slowly to prevent the drill bit from shaking and drilling holes much larger than the diameter of the drill bit. When boring, the main deflection angle of boring tool is 91~ 93. When rotating, it is roughly the same as the outer circle, but in the opposite direction. When measuring the size, you need to use an inner diameter dial gauge to measure it.
Generally speaking, the first week's internship went smoothly without much difficulty. After all, it was because of the previous internship, and the turning part was also practiced before, mainly because the length of the parts was not controlled enough. Look forward to continuing to work hard next week!