Fitter's practice report 1

After three weeks of locksmith training, I found my shortcomings in the process of locksmith processing, realized some points that need attention in the process of processing, and learned something that I couldn't learn in textbooks. The necessary knowledge of a locksmith. But also let me deeply understand the great poet-Li Bai's famous saying: as long as the kung fu is deep, the iron pestle is ground into a needle! After several weeks of study, I feel that we have exercised our hands and improved our overall comprehensive quality, which not only makes us deeply understand the significance of locksmith internship, but also improves our practical ability, so that we can better combine theory with practice.

At the beginning of the class, the teacher first explained the basic concept of locksmith to us, and then we just drew some simple sketches with rulers and needles, but because they were drawn on steel plates, we need to pay more attention when drawing.

Then saw and cut. When I first started learning, I was so tired that I was bent over and sweaty. Some red "patterns" appear on my hands from time to time. When I tried to saw the material in a straight line, several saw blades broke and bent a little, which was out of my control. At first, I probably didn't understand the key points and skills of the saw taught by the teacher correctly, so this happened when cutting. But after consulting other students with straight cutting lines, I had to do it when sawing. Later, I noticed these points when I saw them, and the lines I saw were relatively straight, but I was still not familiar with the deep saw, and the saw was still a little off the path of marking.

Locksmiths seem simple, but training is boring. It takes the same foot strength as a horse to keep an action station, check an action, saw or file a day. After a day's work, the backache may not be finished, and it may be scrapped. If there is the possibility of scrapping, we should do it seriously and measure and verify it repeatedly. It is not enough to be careful, but also to work boldly, just like making a workpiece. If you don't leave as little margin as possible when sawing, it will take one or several times of time and energy to process the workpiece when pushing the file. Therefore, as a qualified fitter, we must be "bold but cautious". When filing, it is easy to file a file with uneven ends, often with one side high and one side low, and the size of the other side is small when filing; Finally, the size is good and the surface roughness is not good; Looking back at the fruits of one's labor, I feel that I am out of proportion to my efforts, and I will become more and more irritable. However, the more we do this, the more we can exercise our patience. When filing and planing, you should use horizontal filing method, straight filing method and push filing method. When filing and planing, you should also pay attention to the changes of your filing posture, file holding method and force, so as to file and plane well. Then there is grinding the drill. When grinding, pay attention to the grinding top angle 120, back angle 180, tip 180, and oblique angle of cross blade 60. The most important thing is that the length of the two cutting edges is the same, and the height of the two tips is the same after rotating180. These are all done by the operation of the left hand and the placement angle of the drill bit during grinding. As long as you pay attention to these details when grinding, it is easy to grind the desired bit.

When it comes to locksmiths, many people will find it useless. Who will learn that thing in which era? Dirty and tired, it is better to learn CNC machining center. The locksmith, a seemingly simple type of work, has rich connotations and the saying that "the lathe is great and the locksmith is omnipotent". It is not a simple file grinding, but a basic skill, which can exercise our will. Any small technology is a science, which needs constant study and serious research. It is also necessary to study the seemingly simple bit grinding. To be a good locksmith, you must first have enough patience, secondly have enough physical strength, and finally have a flexible mind. Because locksmith is a type of work with high labor intensity, low production efficiency and high operating skills. The tools he used were simple, varied in processing, flexible and adaptable, and he could accomplish some tasks that could not or were difficult to carry out in processing. In today's era of developed processing industry, although backward, he can't replace Jobs.

In today's scientific development, the competition between enterprises is the competition of talents. Only by constantly cultivating technical talents and improving the technical level of employees can we better meet the development needs of current enterprises. As college students in the new century, only by participating in practice and mastering a skill can we ensure our position in the future social competition. Although the training lasts only three weeks, its significance is far-reaching.

Fitter's practice report II

The X-week locksmith internship is over. Although we were very tired during the internship, we were very happy because we learned a lot of useful things and also exercised our practical ability. Although the internship period is only a short X weeks, it is only a small part of our X-year college life, but it is a very important part. It's hard for us to forget. After all, it is a real experience of society and life.

To carry out locksmith practice, the safety problem must be put in the first place. After the teacher's explanation, we learned about the dangerous operation actions that students are easy to make in practice. For example, fooling around in the workshop, operating the machine tool without the permission of the master, incorrect operation method and posture, and so on. An unintentional action or a small negligence may lead to mechanical accidents or even personal safety accidents. After this locksmith internship, I learned the basic knowledge and operation methods of metalworking. Mainly learned the following knowledge: the basic types of metal processing are fitter, lathe worker, casting welder and so on.

First of all, try to assemble workers.

In the practice of locksmith, we know that the main data of locksmith are scraping, drilling, tapping, sawing, filing, assembling and scratching; Understand the structure, classification, selection, filing posture, filing method and quality inspection of archives. First of all, we must get the right gear. Sticking to the linear motion of the file when filing the plane is the key to filing. There are two kinds of filing force: horizontal thrust and vertical pressure. When pushing the file forward, the front hand pressure gradually decreases, and then it decreases when pushing the file to the middle position, and the pressure on both hands is the same. When pushing the file forward, the front hand pressure gradually decreases and then increases. When the file returns, no pressure is applied. This will make it easier for us to file. At the same time, I also understand that the locksmith's safety technology is: 1, and the bench should be placed in a place where the work is convenient and the light is suitable; Drilling rigs and grinding wheels should generally be placed on the edge of the site to ensure safety. 2, the use of machine tools, tools (such as drilling machine, grinding wheel, hand drill, etc. ), should be checked regularly, found damaged shall not be used, need to repair the rear can use. 3. When the vise clamps the tool, it is not allowed to use a hammer to beat the handle or steel pipe of the vise to exert clamping force.

Then there are scraping, grinding, drilling, reaming, tapping and so on. Although it is not very standard, it is the crystallization of our sweat and the result of our two-day struggle.

To tell the truth, locksmith internship is boring. He may have been doing it all morning, but he is repeating an action. He still needs strength, and he needs to do it properly. That is, he took the file back and forth on the workpiece. By noon, his hands were sore and his legs were stiff. However, when he is tired, he can see the teacher personally guiding and demonstrating. He is also sweating and panting. A few days later, looking at the results of self-treatment, what we want to say most is to thank the teachers who guided us.

Second, simple lathe work.

Turning is not done by numerical control, which requires high manual operation skills. First of all, the teacher asked us to look at the lathe while reading and get familiar with the various parts of the lathe. Lathe is mainly composed of gearbox, spindle box, change gear box, feed box, slide box, tool rest, tailstock, lathe bed, lead screw, polished rod and joystick. The lathe is operated by each handle. The teacher explained the function of each handle to us, and then let us process a spindle, two small wheels and two big wheels. The teacher first demonstrated the operation method, processed a part, and then we started processing. One of the most important aspects in lathe machining is the selection of suitable tools. First, we need to turn a file handle. This is a real test for people like us who have never used lathes.

I kept turning the horizontal and vertical control handles and carefully processed the wings for a whole noon. When I thought I was almost the same, I was ready to make the final cut, but I rashly reduced the diameter of the arc! I am heartbroken and painful! The most uncomfortable thing is that my calf hurts after standing for a day. But when I handed the car parts to the teacher, the joy of success made me forget to stand and hurt my calf. This joy of success can only be felt by personally participating in the internship.

As college students, after more than ten years of theoretical study, we have been told more than once that there is a gap between theoretical knowledge and practice, but we have never taken this sentence seriously and have no chance to verify the actual gap. The fitter's internship gave us an opportunity to master knowledge and felt the workshop atmosphere without the rigorous environment of the classroom. The studious eyes of the students and the careful and patient operation of the instructor constitute the common scenery in the workshop. After staying in class for a long time, we feel the importance of practical ability. You can't finish the actual work just by thinking and thinking with your head. Only by having a scientific knowledge system and mastering practical skills, including mechanical operation and continuous accumulation of experience, can we apply knowledge to practical work flexibly and effectively. Fitter practice is an effective way to cultivate students' practical ability. There is also a learning classroom. After we begin, we will supplement and question the theoretical knowledge we have mastered. This is just the opposite of traditional classroom education. These two learning methods complement each other, which can fill the blank and make up for some blind spots of one of them. After the locksmith's internship, the overall feeling is that the actual production mode is still relatively backward, and we still can't actually operate the advanced equipment introduced in the book. The equipment in practice is often labor-intensive and low in technology, but some basic knowledge can be applied in practice.

Third, dangerous welders.

In welding practice, we have learned the essence of welding, the composition of welding machine and the composition of covered electrode. Learned to choose covered electrode type and how to operate welding machine. Welding these days is a very important part of our practice. Under the guidance of the teacher, I have mastered some skills through necessary hands-on practice. During my internship these days, I have a necessary understanding and profound experience of welding operation and other welding knowledge. I learned a lot of knowledge that I can't learn in class and benefited a lot.

Fitter's practice report 3

In a blink of an eye, the internship of locksmith in X week will be over. Looking back on X week, I have sweated, failed, hurt and laughed. It is these colorful life fragments that have become an indispensable part of my life and left me with perfect memories.

On the first day of internship, we trained lathe workers. This is the first time I have come into contact with this kind of work. I am not skilled, easy to make mistakes, and I still work standing up. At the end of the day, the whole person has a strong sense of collapse. From curiosity at first to boredom later, it only takes a short process to complete. But watching a smooth and clean workpiece come out of my hand is really a sense of accomplishment.

A long time ago, I heard from my brothers and sisters that fitter practice is the hardest. I haven't experienced it personally before, so I haven't felt anything yet. I have experienced it personally this time, and I have to admit the hard work of the fitter. The fitter is almost entirely operated by hand, which requires high skills of workers, and in order to work, he has to stand and process. Although there is an air conditioner or an electric fan in the operating room, we often sweat after work. One sweat hasn't gone down yet, and the other one comes out again. Some students sweat like rain on the workpiece, which is extremely hard. Looking at the small hammer made by himself, Xiao Qizi is not perfect, but he is still very gratified. I used to think that everything around me was nothing, so I got used to it. But at this moment, I find that the original simple things also contain a lot of wisdom and hard work.

After the internship as a lathe worker, I was exposed to special processing. After the practice of special processing, we learned several advanced processing technologies, and also personally operated or participated in the design and processing of specimens, and produced many exquisite workpieces, which were accepted as souvenirs and became permanent memories.

I just saw the workers in the factory welding when I was a child. At that time, I was told by adults not to look at the welding arc, so I was always afraid of welding. But I didn't expect this internship to have welding information. At first, I was afraid of electric welding. I didn't dare to ignite or arc. Under the guidance and guidance of the master, I gradually eliminated this kind of emotion and gradually adapted to the working environment and way. Although the final result is ugly, it also witnessed the process of self-defeating, although ugly but proud.

The final internship material is casting, which is much more interesting than the previous materials. Every time I get a model, I think about how to fractal it, and then make a sand shape and cast it. The first day was all practice, about X models were cast, and the methods and essentials of making sand shapes were basically mastered. Looking at the complete and smooth sand mold after the parts are taken out, it seems to uncover the mystery of a long-awaited problem. Casting practice, although very tired, is very interesting. Forget fatigue when working, and gain not only knowledge, but also happiness.

In short, after X weeks of locksmith internship, I broadened my horizons and gained some knowledge that I can't get at ordinary times. Locksmiths can greatly exercise a person's toughness, perseverance and carefulness. If any detail is not handled properly, all previous efforts will be wasted. So I have benefited a lot from this practice.

Fitter's practice report 4

In a blink of an eye, the two-year study of fitter theory and practice is over. Although I am very tired and bitter during my internship, I feel very happy! Because I learned the necessary knowledge of locksmith and also exercised my hands-on ability. But also let me deeply understand the great poet-Li Bai's famous saying: as long as the kung fu is deep, the iron pestle is ground into a needle! After the teacher's explanation. I finally understand what a locksmith is. At the same time, I understand why some people say, "Being a fitter is the most tiring!"

Fitter practice is an effective way to cultivate students' practical ability. It is also our future senior skilled workers. Abnormality is a compulsory course for students who study mechanical assembly and maintenance fitter, which is very important and meaningful. The fitter's internship is another opportunity for us to actually master knowledge. Without the rigorous environment in the classroom, we will feel the atmosphere in the workshop. At the same time, I feel more that as a worker, we are more aware of our responsibilities.

This is undoubtedly a transition between theory and practice, from safety education, action essentials, the use of tools, to the actual operation of taking files. Some things are to be explored by yourself, and some things are to be discovered from theory and applied to practice. From the beginning of polishing the plane, I understood that it is not that simple to do a good job, and it needs to be proved by practice. What you see is not necessarily true (the plane looks flat, but its shortcomings can be found by measuring light); This reminds me of why the school wants us to practice there, because the school wants us to understand the value of learning. Learning needs the same meticulous spirit as polishing an airplane, and it also makes us realize the importance of hands-on. It is not enough to learn theory blindly. Without practical experience, you can't find your own hands-on skills, which requires the combination of theory and practice. It needs the cooperation of mind and hands.

From plane grinding to scribing and dot; From shaping to drilling; From reaming to tapping, what I learned at every step was something that others could not take away. From there, I learned what a fitter is. The main information of a fitter is marking, chiseling, filing, grinding, drilling, reaming, reaming, tapping and so on. Understand the structure of the file; Classification, selection, filing posture, filing method and quality inspection.

Fitter practice has trained us and improved our overall comprehensive quality, which not only makes us have a deep understanding of the significance of fitter practice, but also improves our practical skills, so that we can better combine theory with practice. Consolidate the knowledge we have learned, and let us learn the professionalism of teachers. The teacher took pains to find out the mistakes in our homework for us. We also carried forward the spirit of unity and mutual assistance and enhanced the friendship between our classmates.

During the internship, we achieved the fruits of our labor-exquisite nuts. Looking at this exquisite work, it turned out to be polished by myself, and my pride and sense of accomplishment are hard to express in words. Unexpectedly, something that was so big at the beginning has now become a beautiful workpiece, which is what people say, "As long as you work hard, the iron pestle can also be ground into a needle"!

The locksmith's internship was short and hard, but what he learned was valuable, which made me realize the hardship and happiness of being a worker and consolidated my knowledge, which left me with perfect memories.

After three weeks' practice as a locksmith, what I have learned and realized is not available to teachers in class. What is "practice makes true knowledge"? If your practical skills are poor, no matter how good your theory is, it will not help. I believe that after this locksmith internship, I will lay a solid foundation for the next internship as a lathe worker and welder.

Fitter's Practice Report 5

Internship brings us a lot of feelings and experiences. We have suffered a lot, but we enjoy fast happiness and setbacks. However, we finally gained the joy of success, so we are very grateful to the instructor. The following is my internship report:

First, the purpose of internship

Metal processing technology is an indispensable basic knowledge for people engaged in the production of various substances. Through independent practical operation, contact with practical knowledge of production, master the basic knowledge and skills of locksmith and lathe, learn to use locksmith tools and ordinary lathe, understand the processing technology of mechanical parts, combine the basic process knowledge, basic process methods and basic process practice of mechanical manufacturing, train the comprehensive skills of engineering practice, and improve their comprehensive quality and ideological level.

Second, the practice principle

Fitter refers to a processing method that uses fitter tools or equipment to process, manufacture and repair raw materials, metal workpieces and mechanical equipment according to technical requirements. File, scraper, hand drill, reamer, vise, small drilling machine and electric grinder are the main tools. Generally, it is mainly manual, which has the characteristics of simple equipment, convenient operation and wide application, but the production efficiency is low and the labor intensity is high, so it is suitable for single piece and small batch production or assembly and maintenance. The locksmith's basic operating skills include scribing, chiseling, sawing, filing, drilling, reaming, countersinking, reaming, tapping, correcting and bending, riveting, scraping, grinding, machine assembly and debugging, equipment maintenance, measurement and simple heat treatment.

Third, the operation steps

(A) the processing of hammer head

1, observe and be familiar with the product design drawing (a small hammer), and prepare raw materials (a cylinder with a height of about 700mm and a diameter of about 40mm) and locksmith tools.

2. Draw a rectangle: draw a rectangle with a length of 23mm and a width of 19mm at the bottom of the cylinder according to the principle of one big and one small and the size required by the design drawings.

3. Saw initial model: Based on the rectangle drawn at the bottom of the cylinder, saw a cuboid with the same height as the cylinder with a hacksaw.

4. Rough grinding: After sawing the initial model, polish the model surface with a file to facilitate the next operation.

5. Draw the outline of the hammer: according to the principle of one big and one small, draw the outline of the hammer on both sides of the cuboid 700x22, and draw the corresponding line on the side of 22* 18.

6. Saw the sample model: draw the outline of the hammer on the cuboid with a hacksaw and saw the shape of the hammer.

7. Precision grinding: After sawing the sample model, grind the model surface to the required size with a file.

8. Drilling: Draw the position of the hammer handle hole and drill the hammer handle hole with a drilling machine.

9. Tapping: Screw out the thread slowly with a tapping tool.

10, grinding edges and corners: use a file to grind all edges and corners of the hammer into a 45-degree inclined plane.

(2) Machining of hammer handle

Under the teacher's careful guidance, according to the design requirements, it is processed by ordinary lathe, and the thread is turned by the lathe thread cutter.

(3) Assembly: Screw the hammer handle into the handle hole on the hammer head, and the whole process is finished.

Fourth, internship experience

From practice, I have mastered the basic knowledge and operation skills of locksmith and lathe worker, as well as the processing technology and operation method of ordinary lathe, understood the process of mechanical manufacturing and parts processing, exercised and improved my practical skills, so that I can better combine theory with practice and consolidate my learned knowledge.

At the same time, during the internship, we carried forward the spirit of unity and mutual assistance. We are a group. Students with strong hands-on ability help students with weak hands-on ability. We helped each other learn from each other. We not only learned how to cooperate, but also enhanced our friendship.

Fitter's practice report 6

In May, I had a three-week metalworking internship in the factory of South Campus. During this period, I came into contact with seven types of work, such as sawing, filing, chiseling, drilling, turning, milling and planing, and also briefly understood the processing technology of CNC machine tools. Everyone has to learn a new technology every day, and in the six-hour internship, he can complete the process from knowing nothing about all kinds of work to making a finished product. With the patient and meticulous teaching of teachers and our enterprising cooperation, we did not have an injury accident, basically met the expected internship requirements, and successfully completed the three-week cognitive internship.

To tell the truth, at first I thought three weeks was really long, but time was in a hurry, and three Mondays passed in the blink of an eye. Looking back on my three-week blue-collar trip, I tasted: acid-strict commuting and working system; Tired-keep filing with a file; Spicy-the wonderful performance of high-speed cutting; Sweeter-hand-made exquisite workpieces.

When I arrived at the south campus, I learned fitter first, which is a manual processing method with high labor intensity, low production efficiency and high technical requirements. The locksmith has simple tools, flexible processing and strong adaptability, and can complete some inconvenient or difficult tasks. Therefore, in some current mechanical processing and repair work, locksmith is still an indispensable and important type of work.

The first time I walked into the locksmith processing training building, I was a little excited. On the first day, the teacher introduced us to the locksmith's main equipment, and let us know about the locksmith's bench, vice, marking table, drilling machine and various measuring tools and marking tools. After understanding this, the teacher began to introduce saws and their uses. After the professor finished speaking, he gave us homework and asked us to saw a thin slice with a thickness of1mm. This is our homework. When I heard this, I froze. 1MM？ How is it possible to saw it? The teacher said, if not, how can I test my true skills? When I saw it for the first time, I saw that the road was crooked and broken because I was not skilled in the operation. After practicing twice, I mastered the operation essentials, sawed out satisfactory slices and finished my homework!

The next week, the teacher asked us to grind an iron block into a hexagonal nut by hand with tools such as file and hacksaw, and then make a beautiful nut by punching and tapping. There are also two sets of matching handicrafts. I remember when we first made nuts, the teacher told us that the size of the workpiece must be accurate. If the dimension is out of the tolerance range of 0. 1MM, 1 min will be deducted on the basis of the score. Hearing this, I'm afraid I've made the hexagon nut smaller. When I sawed it off the cylinder, I sawed off the thickness by 2MM, and then polished it with a file. At first, I thought that the thickness of 2MM was nothing, and it would soon wear off. Unexpectedly, I spent two hours grinding around. At that time, I understood a truth: 2MM can be equivalent to 2 hours. Unfortunately, after a period of time, the diameter of the opposite side of a set of hexagonal nuts decreased by 0.1mm. Looking at the dissatisfied disabled semi-finished products, I decided to give up and start over! But when I saw that other students were almost finished, I had to smooth the uneven part of the iron column, then saw it off, then smoothed the section, then drew lines and repeated those processes, and my heart began to worry! At that time, I really wanted to give up and stop doing it. But I don't want to hand over that defective product.

At the same time, I think of a friend who said to me: do one thing, concentrate on it, thinking that you must do it well, and you can do it well! I said to myself, calm down, there is still time, I can finish my homework! The second time I did it, I learned a lot from myself. I did every step with great care and accuracy, perhaps because my operation skills and efficiency were improved. The speed of secondary production is obviously higher than that of upgrading, and it is much better. Maybe I had my first experience. After hard work, I finally finished my homework within the specified time. After eating this loss, I also learned a good lesson. In the next homework, I calculated carefully, followed the teacher's instructions step by step, and then measured carefully. After a few days of practice, the efficiency has also improved a lot, the production process has become more and more accurate, and the aesthetic coefficient has also improved!

Fitter's Practice Report 7

Last week, we had a locksmith training. In this training, I learned a lot, including not only our professional knowledge, but also the truth of being a man.

The word "locksmith" was a vague concept to me before, and I got a better understanding after this locksmith training. The meaning of fitter: the operation of cutting metal with hand-held tools. Before that, I really didn't have a qualitative concept about locksmiths, but I just understood it as referring to a certain aspect of steel processing, but if I told you the specific information, I couldn't say it clearly, but now I finally understand it. More importantly, I not only really understood the meaning of the word "locksmith", but also learned many skills in this field, such as how to use a file. How to use the shovel? How to use this hammer with less effort?

Let me tell you the bitter story that happened when we made this hammer. When I first heard about making this hammer, I was so happy that I was eager to see it. How simple it is! But when my partner and I really do it, we will find it difficult to do it. After the teacher finished making the hammer and the matters needing attention, I got the materials and was beaming. My partner and I started sketching the material according to the requirements given by the teacher. When we finished the sketch, we began to disagree. I think it is necessary to find the center of the workpiece accurately. What we have to do is to measure accurately and draw a sketch correctly. But my companion Zhang Siyuan doesn't think so. We discussed with friends in other groups and decided whether it was better or better to find this center accurately, so we started this "great project".

After sawing steel for two hours, we were both exhausted. But seeing other students still have such high fighting spirit. We are also encouraged. We had a rest and then went on working. We firmly believe that "as long as the kung fu is deep, the iron bar is ground into a rusty needle." In the process of sawing, we found that we sawed the first side for so long, but when there was no sign of sawing down, we saw other students sawed both sides. We just wonder if we are stupid. Even this saw can't beat other students. We began to be impetuous and began to blame each other. When accusing each other of seesaw, we are not serious and do not work hard. Under the mediation and persuasion of friends, we smiled and shook hands. Once again, we make and complete a hammer for our common dream. After three days of hard work, we finally finished this work.

After such a week's locksmith training, what I have learned and realized is something that the classroom and teachers can't get. I know what "practice makes true knowledge". No matter how good your theory is, it will be of no help if your practical skills are poor. I believe that after this locksmith training, I understand that it is more fundamental to apply what I have learned to real life.

I am attending locksmith training this week. I used to be impetuous, because I saw that our saw hammer couldn't catch up with others; I was disappointed because I saw that the first side of this hammer had never been sawed off; I'm afraid, because I'm afraid I won't make it to the end; But we persisted until the end, and we finished the work. Although this workpiece may not be very standard, may not be qualified, and may not be comparable to others' workpieces, this workpiece is the result of three days' efforts by my partner and me. It is difficult to express the feeling of happiness and excitement when you finish your work. We took our hammer with our camera and left it to us as a souvenir. In a week's time, I learned to persist, and I can't be impetuous and give up easily. As Xu Sanduo, the hero of Soldier Assault, said, "Don't abandon, don't give up". In the later life, I believe that when I am in some large and complicated things, when I am agitated and want to give up, I will use the experience of this locksmith training to warn and encourage myself. "When you were a hammer, you also made yourself anxious and lost the belief of persistence because of the trend of self-sawing, but in the end you calmed down and persisted, not comparing with others, but calming down and letting yourself work hard."

Sow ideas and reap actions; Plant behavior and harvesting habits; Plant habits and gain characteristics; Plant characteristics and harvest fate; Let me plant the belief of "don't abandon, don't give up", to pursue my childhood dream, to find my happy tomorrow and to work hard for a more wonderful tomorrow.