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▼ Turner training summary 1
Internship purpose:
1, simply understand the working principle and working mode of lathe;
2, learn the correct use of lathe, and can correctly use the workpiece processing method.
Turner preparation knowledge:
A, lathe worker safety knowledge
1, wear work clothes to work, girls wear work hats, and put their long arms in the hats.
2, must concentrate at work, are not allowed to leave the machine without authorization.
3, the workpiece and turning tool should be clamped firmly, so as to avoid the workpiece and turning tool flying out and hurting people.
4, the workpiece rotation, are not allowed to measure the workpiece.
5. After the workpiece is installed, the three-jaw wrench must be removed conveniently, so as to avoid accidentally starting the lathe, so as to avoid the wrench flying out and hurting people.
6, are not allowed to go to work, stick to your post.
Second, the theoretical knowledge of lathe operators
1. Lathe worker: a worker who operates a lathe and processes mechanical products on it.
2. What is a turn? It is a cold working turning method that changes the size and shape of the workpiece blank by using the rotating motion of the workpiece and the feeding motion force of the cutter.
3, lathe model standard notes and instructions
cw6 140
Features of lathe: the model code of universal flexible lathe group indicates the maximum machining diameter 1 10.
Table lathe type
4. Lathe components: spindle box, change gear box, walking box, carriage box, tool rest, tailstock, carriage three bars, lathe bed and accessories.
5, lathe maintenance and maintenance
① Lubricating oil ② Check whether the machine tool is in good condition ③ Anti-smashing ④ Cleaning ⑤ Turn off the power supply.
Third, the workpiece
Name processing data tool
1, φ 30 0 and 590 degrees for vernier caliper of cylindrical turning tool.
2, turning steps (line drawing positioning) turning φ22 and φ 1790 degree cylindrical turning tool vernier caliper.
3. Turning circular turning tools r 105 and r 135.
4, plastic file plastic file, emery cloth
Four, lathe general provisions:
Do a good job:
1, workpiece alignment, only use manual chuck or turn on the lowest speed alignment, do not turn on the high speed alignment.
2, processing bar, bar shall not be too long, generally not more than 300 mm at the back of the spindle hole advisable, and wood chips to clip it in the spindle hole. When it exceeds 300 mm, it should be supported by a bracket, and it can only be handled after it is confirmed to be safe, but it is not allowed to drive at high speed.
3. When processing deviated workpieces, they should be properly matched and fastened firmly. Turn the chuck by hand to check the accessibility, then turn it at a low speed, and then confirm the assembly requirements of the counterweight before processing.
4. When clamping the workpiece with the tailstock thimble, the extension of the tailstock sleeve shall not exceed twice the diameter of the sleeve, and pay attention to locking.
5. When drilling with tailstock, it is forbidden to use lever to turn the handwheel to feed.
6. When loading and unloading heavy workpieces, block them with boards on the bed surface to prevent accidents.
7. When loading and unloading the chuck, only the V-belt is allowed to rotate the spindle by hand. It is absolutely forbidden to start the machine tool directly to force it to loosen or tighten, and at the same time block it on the bed surface with wooden boards to prevent accidents.
8. When the frame moves quickly, it must stop moving quickly 50~ 100 mm before the limit position to prevent collision.
9, turning tool installation shoulds not be too long, turning tool gasket to level off, the width should be consistent with the width at the bottom of the turning tool.
10, when turning the excircle, only the polished rod is allowed to move the slider instead of the lead screw.
1 1. When changing the rotation direction of the spindle, stop the spindle first, and don't suddenly change the rotation direction of the spindle.
12, it is not allowed to brake the spindle rotation by reversing in the work.
13, when processing steel parts to processing iron castings or other non-ferrous metal parts, the chips should be thoroughly removed and the coolant should be wiped.
When iron castings or other non-ferrous metal parts are processed into steel parts, the chips should be removed and the surface of the guide rail should be thoroughly wiped and lubricated.
14, when cutting at high speed, attention must be paid to:
(1) Cutting steel parts should have chip breakers.
② Top dust must be used.
15, the workpiece weight speed of large lathe must be carried out according to the requirements of the instruction manual.
Do it carefully after work:
1. Move the tool rest and tailstock to the end position of the lathe.
2, parking for more than one class, unfinished large workpiece, application board support.
Internship materials:
First, the basic knowledge: the principle, processing scope and characteristics of turning.
Basic structure, types and uses of common lathes.
Types, structures and functions of turning tools, simple sharpening methods and installation of turning tools.
Methods of turning excircles, end faces, grooves, threads and conical surfaces.
The installation method of workpiece and the function of main accessories of lathe.
Concept and selection of turning parameters.
Correct use of commonly used measuring tools and size inspection.
General technical knowledge of turning.
Safety technology of lathe workers.
Second, the basic skills:
Operate lathe correctly and independently, and install and use common tools.
Machining of cylindrical end face, groove, thread and conical surface.
Finish the work independently.
Internship results:
There is plenty of internship time for lathe workers, because two days of internship lathe workers have been arranged. We also have two parts, one is a stepped cylinder and the other is a small handle. In addition, we use the remaining time to process some gadgets, such as exquisite pagodas, gourds, bullets and so on.
Sum up experience:
Lathe is the type of work I practice, and it is also the type of work that I practice for the longest time and have the most sense of self-control.
Teachers look very simple, because apart from briefly introducing the use of lathes, they basically sit together and chat, and occasionally come out to help see our practice progress. Then, if one of us accidentally wears the turning tool, we need the teacher's help to sharpen it. In addition, we are basically groping, groping and tossing ourselves. Can't say that this kind of tossing has no effect. After all, we made so many cute little things. This is not a small success for us, because without satisfactory technology, this gadget will not look good even if it is made.
Therefore, the most important work on the lathe is mental work. We study the ordinary lathe, and all the operations are controlled manually. If you want to make superb technology, it is difficult to meet the requirements without skilled technology and careful arrangement. It requires that when you get another part drawing of a part to be processed, you should not only know how to arrange to deal with that part first, but also know that all parts of your hand, brain and body should be fully coordinated when dealing with it. It can really be described as "pulling one hair and moving the whole body." Moreover, the precautions of lathe workers are quite complicated, and you need patience, perseverance and perseverance.
▼ Summary of lathe training work 2
After a semester of lathe training, I learned a lot about lathe machining. I have basically mastered the processing methods of some basic workpieces. Next, I'll introduce the knowledge I learned this semester to my teacher. I take the processing of an m20 thread as an example to illustrate its processing method and matters needing attention.
Let me take the car ca6 140 as an example. If we want to machine threads, we should turn an m20 excircle before machining threads. Because the thread diameter required by the final lathe is m20, we should make the excircle smaller than m20 by 0.2-0.3 when machining, which means that the diameter of the excircle to be machined by my lathe should be 19.7 or 19.8. Here, I assume that the diameter of the existing rod is m30.
At this time, I began to deal with it. First, I put the bar on the chuck of the lathe and tighten it. I turn the excircle on the tool rest. 1 The part starts to rotate the excircle, and the speed of the lathe is adjusted to 450 rpm. Turn the big and middle carriages so that the lathe tool lightly touches the end face of the bar (the lathe tool only lightly touches the bar, so that there can be no excessive contact between the knife and the bar), and then feed the big carriage 1-2mm. When in use, the middle carriage feed lathe processes the end face perpendicular to the excircle of the bar, and continues to align the cutter so that the excircle of the cutter collides with the bar. The big carriage pulls the cutter back to the outside of the bar, and then the lathe excircle starts there. I'll aim at the cutter head of the material lathe 4. The first knife is used to feed the drag plate, and the feed rate is about 3 mm After machining to the dream length, the big drag plate retreats and the middle drag plate does not move. The second knife and the third knife enter 3mm like the first knife. Finally, the finishing of the first knife is still 1.2 or 1.3. When cutting this knife, the deviation (here, my self-requirement is 0+0.0-0.02) should be added.
I have processed the raw materials into a material with an excircle of m 19.7 through top processing. Next, I will cut a groove between M20 and 30 on 20 next to 30 with a cutting knife. The width of the groove is between 5-8mm and the depth is 6.4mm (because the thread pitch I want to turn is 2.5, the feed of the middle carriage can be calculated by formula as 3.2mm). When cutting the groove, it should be noted that the groove should take root after cutting to the specified width and depth.
All the above preparations have been completed. Finally, I'm going to machine the thread, where I should make a forward and backward cutting. The characteristic of this method is that the pressure on the large carriage and the switch are closed when the chuck rotates forward, and the cutter retracts when the feed of the large carriage is reversed. After adjusting the turning tool feed. Align the threaded cutter with the material, make the chuck rotate forward, make the cutter mark the material, and measure it with vernier caliper to see if it is 2.5. If the measurement is qualified, you can use the intermediate carriage to feed. This means that the rotation speed of the lathe should not be too high, not more than 100 rpm, and the maximum feed rate should not exceed 5mm, and it is best to keep it at about 0.0 1-0.02 every time during the final cutting, so as to ensure that the surface finish of the thread will not tear.
The above is the whole process of my thread processing. I understand that all I know is the skin of a lathe worker, so if I want to learn lathe better, I will study hard in the future.
▼ Summary of Turner Training Work 3
CIMC's six-month internship is over. Feel and gain a lot.
Get out of school and integrate into society. From a student to a unit person, on the ideological level, we must realize that their social protagonists are very different. Students just learn knowledge, and social practice is to keep learning and apply knowledge to practice. Students can choose their own contacts, while social people are more chosen by others. The differences between these species are numerous. However, it is not enough to realize this only on the ideological level. We must also concentrate on consciously changing the protagonist in our actual work and life.
Society is a university. At work, we should always deal with society. Associating with all kinds of people can determine the success or failure of a person's work to some extent. Therefore, rich social knowledge is the lubricant for the smooth development of the work. Only by accepting and absorbing all kinds of social knowledge with an open mind can we enrich our connotation as social people, broaden our horizons and promote the smooth development of our work. Business skills are one aspect of success in life, but it is more important to pay attention to the improvement of one's comprehensive quality: communication ability, team consciousness, sense of responsibility for work ... In society, people can't exist alone without others, and only by contacting others can they reflect their self-worth. Higher professional skills and good comprehensive quality are the cornerstones to ensure self-mastery in work and career success.
The theory is gray and the tree of life is evergreen. Only by putting theory into practice can the value of theory itself be realized, and only by putting theory into practice can theory be tested. Similarly, a person's value is realized through practical activities, and only through practice can he exercise his own quality and show his will. Practice is often more complicated and difficult than theoretical study. What the school can learn is very limited, and only a few can play an auxiliary role in the future work. I think the school pays more attention to cultivating our learning ability. After all, it is never too old to learn. For every job, you never get familiar with it, and it is impossible not to study.
Finally, be a man in advance. In my work, I always pay attention to the shaping of my personality, work hard, be modest and prudent, be kind to the parties, be polite, and constantly demand myself.
▼ Summary of Turner Training Work 4
1, use
Consolidate the main business knowledge of port business management specialty, improve practical operation skills, enrich practical work and social experience, master operation skills, and pay attention to applying the relevant theoretical knowledge of port business management specialty learned from books to work practice. Deepen the perceptual knowledge of practice with theory, verify the accuracy of theoretical knowledge with practice, and explore the essence and law of daily management.
Internship is a necessary experience for every student. It enables us to understand the society in practice, learn a lot of knowledge that we can't learn in class, broaden our horizons, increase our knowledge and lay a solid foundation for our further social development.
2, internship units and work introduction
CIMC Shipbuilding Co., Ltd. is a wholly-owned subsidiary of Golden Bay, with a registered capital of 900-500 million yuan. It is a large shipbuilding enterprise mainly engaged in shipbuilding. Founded on June 9th, 2006, 10, the company is located in the south of Daishan, Zhejiang Province, with the coveted conditions and advantages of being close to international shipping routes and Yangshan Port Area, an international shipping center in Shanghai, with an open port area, good wave and shelter conditions and deep water coastline. Strong financial strength, excellent human resources and practical first-line practice are conducive to integrating theory with practice and truly applying what they have learned.
My post in CIMC is driving operation. On the one hand, because I was trained in this field at school; In addition, I also strongly urge to go to the first-line internship. Crane, also called crown block, is a crane that walks on the fixed track at the upper part of the workshop. Driving operation is actually a simple and boring job, but because its target is often heavy steel, it belongs to a high-risk industry. Safe operation is the core of driving operation, and drivers are required to observe the operating rules and be careful.
3, internship materials and processes:
I have been practicing for half a year in the Chinese Academy of Technology, and I can say that I have gained a lot.
(1) Week 1 and Week 2: It belongs to the adaptation stage.
Based on the company's requirements for new employees and the particularity of driving operation, during these two weeks, the company conducted a simple centralized training for us, which deepened our understanding of CMC and its operation process. "Safety first, prevention first" is the most frequently mentioned sentence in training. We are engaged in high-risk occupations, and life safety is the most important. During the training, we learned a lot about safety, such as the relevant safety production law, various relevant national standards and industry standards; Employees' rights and obligations such as the right to know and the right to refuse illegal command; The main person in charge of the production and business operation entity shall perform the duties, such as establishing and perfecting the responsibility system for production safety of the entity; Operating rules and specifications that each type of work should strictly abide by, such as the approval procedures for open flame operation; Safety technical requirements and standards for ship repair operations, such as operating procedures and technical indicators of scaffolding; In addition, I also learned some knowledge about typhoon prevention.
(2) The third week: contact, familiar with the post and driving operation training.
I am no stranger to driving; But if you really want to stand on the road operation post, you still need to constantly strengthen.
Crane driver is a job with strong sense of responsibility. The exception is that, as a crane driver in our processing engineering department, he has fast production pace, high operation frequency, low degree of equipment automation and frequent contact with ground personnel. He plays an extremely active role in going to work every day, and he can't slack off every minute of every movement within the scope of self-operation.
Under the guidance of the monitor, I gradually became familiar with the skills and maintenance knowledge related to driving operation, such as safety operation rules and common sense of maintenance, as well as related matters needing attention. Skills need me to learn, master and strengthen step by step.
Week 4-6: Familiarize with and adapt to the driving operation stage.
After the last stage of reinforcement, I started my driving operation. The process of groping is painful. As a newcomer, everyone is not familiar with it, and the operation of driving can't be said to be skilled. Especially after a few minor accidents, I was even more afraid. Seemingly simple work, if you really do it yourself, you will still encounter many difficulties. It is very reasonable to have a superficial understanding of what you get on paper. How to adapt to the new position as soon as possible? I gradually realized that we must do five things well: diligence in heart, diligence in eyes, diligence in mouth, diligence in hands and diligence in feet. Thinking more, seeing more, asking more questions and practicing more are the shortcuts for us to adapt to the new job as soon as possible. Think about how to do it with your head, pay more attention to the driving situation and the surrounding environment, ask questions diligently, and constantly strengthen the cooperation between our hands and feet.
There are rules to follow in the operation and the work is orderly, which is the cornerstone to ensure the efficient operation of the China Foundation.
(4) Week 7-26: Be unique at work and cultivate emotional intelligence.
After nearly a month's driving operation, I have been able to operate safely and correctly handle the problems in operation. In addition to doing my job well, I pay more attention to the cultivation of self-comprehensive quality: the self-improvement of interpersonal skills, team awareness and work responsibility. Try to find out some of your own defects and deficiencies and find ways to correct them in order to improve your ability and good quality and cultivation. This is a simple focus.
Interpersonal communication ability is probably the most useful basic skill for modern people to achieve personal success. At this moment, society needs communication most and lacks communication most, so it is very important to master this method and skill! No matter who you are, you need to communicate with others, realize cooperation and deal with more people! Good communication helps me to maintain a harmonious relationship with other members of the team, narrow the distance between us, and finally help me master my work skills as soon as possible. So I must master the correct interpersonal methods!
In the process of getting along with old employees, I think the most important thing is to learn to listen and praise. The best way to communicate is to listen. Listening attentively is the best respect and concern for people, and the needs of the other party come from listening. A successful conversation is when one third of the time is spent talking and two thirds of the time is spent listening. This is why the old man God gave each of us a mouth and two ears. And praise, I think, is the need of human nature. People are interested in themselves first, and people care about themselves rather than others. So you must be "people-oriented" and "put yourself in others' shoes", instead of looking at others with your own eyes, let alone imposing your will on others. Praise is an excellent way to increase interpersonal affinity, and praising others is actually praising yourself.
Society is the best university. Good team spirit is like a banner, calling on all those who agree with the team spirit of enterprises to gather under this banner voluntarily and work hard to achieve the goals of enterprises and individuals. However, its composition is not easy. We need to rely on the accumulation of our long-term education, training and life practice, quickly adapt to the company's environment, integrate into the enterprise group, better communicate with colleagues, and better complete the established tasks. These are hard-won. Need a step-by-step understanding from point to surface.
Every department and every post are interrelated and complementary. If everyone in the team is extremely responsible, then our work must be self-satisfaction, colleague satisfaction and customer satisfaction, and the team's execution, work level and work quality will be continuously improved.
Although the work is a bit boring.
Engaged in similar operations every day, dealing with the same people and things, let the brain focus on the cab of two square meters, and concentrate all your energy on driving operations to ensure foolproof. It is self-deception to insist that you still have the enthusiasm when you first entered China Foundation. However, just out of school, if you don't force yourself to adapt to the society as much as possible and constantly enrich yourself, it is likely to affect your life. What's more, love and dedication is the basic professional ethics. The most important thing for every employee is to do what he should do and do what he should do. To do a job, you should love a job, go deep into it and do your own thing, even if it is a job you don't want to do. This is the minimum professional ethics. In CMC, although I often work overtime, it is a job that must be done and done well. I think this is also the basic requirement of dedication and love of work!
▼ Summary of lathe training work 5
A two-week metalworking internship. During this period, we came into contact with the basic operating skills of machining. With the patient and meticulous teaching of teachers and our active cooperation, we did not have any serious injury accidents, basically reached the expected internship requirements and successfully completed the internship task.
Before the internship, I heard from my classmates that I was tired, but on the first day of the internship, I came to the internship center with excitement and curiosity. I look at these huge machines and I find it difficult to operate them. I wonder if the teacher can operate it after teaching. In short, I am somewhat uneasy and somewhat looking forward to it. Our classmates are probably curious, too, and feel around on the machine. Next, the teacher told us the basic task and purpose of this internship, and repeatedly emphasized the safety issue. Finally, there are lectures and demonstrations.
We mainly study lathe work. As soon as we entered the operating room, we knew that the operation should not be easy. As a result, the teacher also said that turning is the hardest. I told myself at that time that my hands-on ability was not strong, so I must listen carefully! Lathe uses the rotation of workpiece and the linear and curvilinear motion of cutter to process workpiece. As far as the basic information of its work is concerned, it can be turned into an external circle. Inner circle, end face, cutting, slotting, inner and outer conical surfaces, all kinds of threads, knurling, molding surface, etc. After the teacher's introduction, I understand that the installation of turning tool must pay attention to the following points: First, the extension length of turning tool fixture on the tool holder should be as short as possible to enhance its rigidity. Second, the number of gaskets under the turning tool should be as small as possible and placed neatly. Three, turning tool tip should be at the same height as the lathe spindle center. Workpiece installation: First, the extension should not be too long, which will affect the clamping rigidity. Second, the clamping must be firm and reliable to prevent the workpiece from flying out and hurting people. If necessary, use afterburner. Third, pay attention to alignment and tightness when clamping blank workpieces. At the same time, there are also methods of cutting three elements, selection of cutting parameters, excircle, end face and steps of hand-cranked car. Finally, the teacher also talked about the internship task and introduced the process steps of processing this part. I listened carefully for fear of missing a little. Finally, I demonstrated it on the operating machine, and I watched it carefully. The teacher's task has been completed, and then it's our turn to operate it ourselves. We work in groups of three, and each of us has to process a simple part.
At the beginning, our familiarity with machine tools was not enough, which led to our slow processing speed and frequent mistakes. Because the machined parts require high accuracy, they have to be scrapped again if they are not careful. After a long period of processing, we will gradually become familiar with the machine tool, the processing speed will be significantly accelerated, and the accuracy will be significantly improved. At noon the next day, three qualified parts were finally processed.
In the next three days, the teacher assigned us a more difficult part processing task with higher accuracy requirements. Because of the previous foundation, our processing speed is much faster, but it needs to be accurate and more precise. Because of the previous foundation, our processing speed is higher, so we often produce waste products. After hard work, under our careful processing, the task was completed and the parts were successfully made.
Because the processing was standing, we were all tired after two weeks, but we lived a full life and learned a lot in these two weeks.
1. Understand the knowledge of mechanical manufacturing technology and the application of new technologies and equipment in mechanical manufacturing, and cultivate, improve and strengthen our engineering practice ability, innovation consciousness and innovation ability.
2. Machining practice has trained and exercised us, improved our overall comprehensive quality, and made us not only have a deeper understanding of the significance of machining practice, but also improve our practical skills. So that we can better combine theory with practice and consolidate what we have learned.
3. At the same time, learn from the teacher's professionalism and rigor. Some teachers will show students how to operate over and over again until the students really understand. During the internship, we also carried forward the spirit of unity and mutual assistance. Male students help female students, and students with strong hands-on ability help students with weak hands-on ability. Everyone helped each other learn from each other, not only learned how to cooperate, but also strengthened the friendship between classmates.
4. The results of our work during the internship. These incredible small parts are actually processed by themselves, and this sense of pride and accomplishment is difficult to express in words.
Machining practice made me feel the pain and joy of being a worker in the classroom for a long time, and also tested what I had learned. Machining practice made me deeply understand the meaning of life.
Labor not only transforms nature, but also transforms human mind. After this week's machining practice, I also have a deep understanding of this aspect.
1, labor is the most glorious, and only practice can realize the pain and joy of labor.
2. Perseverance, carefulness and patience.
3, serious and responsible, pay attention to safety.
As long as you pay, you will get something.
Practice is the criterion for testing truth. After a week's metalworking practice, I learned a lot of common sense and honed my will. This is another precious wealth in my college life, which has a great influence on my future study and work.
Soon we will step into the society and face employment. The employment unit will not tell us the work to be done in detail like the teacher, but more needs us to observe and learn by ourselves. Without this ability, it is difficult to be competent for future challenges. With the rapid development of science and the wide application of new technologies, there will be many fields that we have never touched. Only by daring to try can we make a breakthrough and make innovations. Just like the lathe worker we contact, although it is very dangerous, it needs every student to operate and make finished products, so as to exercise everyone's courage to try. A week's metalworking practice brings us not only the operating skills that we have been exposed to, but also the skills that we must exercise after several types of work. More importantly, we need each of us to feel, reflect, work hard, encourage ourselves and gain something after the internship, so that this internship can achieve his real purpose.
Summary of articles related to lathe worker training;
★ 5 summaries of college students' lathe training.
★ 5 short articles summarizing lathe work training.
★ 5 short articles summarizing lathe work training.
★ Model essay summarizing lathe work practice.
★ Five self-evaluation articles on lathe worker training.
★ 3 Essay on the Summary of Lathe Training.
★ Personal summary of lathe work practice
★ 3 short articles summarizing the lathe work practice.
★ Summary of Turner's internship work
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