[Boutique] car mechanics internship report

This article directory 1 car mechanics internship report 2 car mechanics internship report 3 car mechanics internship report The first article: car mechanics internship report

Internship purpose: 1. Simple understanding of the working principle of the lathe and its working methods;

2. Learn the correct lathe usage method and use a workpiece processing method correctly.

Turner preparation knowledge:

First, the work safety knowledge

1. Wear work clothes for work, girls wear work hats, and pull them into the cap.

2. You must concentrate on your work and you are not allowed to leave the machine.

3. The workpiece and the turning tool need to be clamped firmly to prevent the workpiece and the turning tool from flying out and hurting people.

4. When the workpiece is rotated, the workpiece is not allowed to be measured.

5. After the workpiece is installed, the three-jaw wrench must be removed by hand so as not to pay attention to the driving of the lathe, so as to avoid the wrench flying out and hurting people.

6, go to work is not allowed to work in a row, adhere to their respective jobs.

Second, the theory of turning workers

1. Turner: A worker who operates a lathe and processes mechanical products on a lathe.

2. What is turning: A cold-working turning method that uses the rotational motion of the workpiece and the feed motion of the tool to change the size and shape of the workpiece blank.

3, the model standard notes and instructions of the lathe

CW 6 1 40

Lathe characteristics: Universal variable lathe group type code indicates 1/10 of the maximum processing diameter

Table common lathe type

4, the components of the lathe: spindle box, hanging wheel box, walking box, pallet box, knife holder, tailstock, carriage three rods, bed, attached files.

5, lathe maintenance and maintenance

1 Lubricating oil 2 Check whether the machine tool is in good condition 3 Anti-mite 4 Cleaning 5 Turn off the power.

Third, the workpiece

Name processing content tool

1. External circular turning tool φ30±0.5 90 degree external turning tool vernier caliper

2, car step car φ22 and φ17 90 degree external turning tool vernier caliper

3, car arc car r105 and r135 arc forming turning tool

4, plastic trowel plastic trowel, abrasive cloth

Fourth, the general provisions of the lathe:

Seriously at work:

1. When looking for a positive workpiece, only use the hand plate to move the chuck or open the minimum speed to find the right one.

2. When processing bar stock, the bar material should not be too long. Generally, it should be 300mm away from the rear end of the spindle hole and clamped in the spindle hole with wood chips. If it is more than 300 mm, it will be supported by the bracket, and it can be processed after confirming safety, but it is not allowed to open high speed.

3. When processing the workpiece with heavy weight, the matching is important, and the fastening is firm. After turning the chuck to check the barrier-free, turn it at a low speed to confirm that the weight meets the requirements before processing.

4. When the workpiece is held by the tailstock ejector pin, the extension of the tailstock sleeve is not allowed to exceed twice the diameter of the sleeve, and attention should be paid to the locking.

5. When drilling with a drill bit in the tailstock, it is not allowed to use the lever to turn the handwheel into the tool.

6. When loading and unloading heavy workpieces, place planks on the bed to prevent accidents.

7. When loading and unloading the chuck, only rotate the V-belt by hand to rotate the spindle. It is absolutely forbidden to directly loosen or tighten the machine tool. At the same time, it should be placed on the bed surface to prevent accidents.

8. When the slide is used for rapid movement, it must stop moving quickly at 50~100 mm from the limit position to prevent collision.

9. The installation of the turning tool should not be extended too long. The turning tool gasket should be flat and the width should be the same as the width of the bottom surface of the turning tool.

10. When turning the outer circle, only use the light bar instead of using the screw to actuate the slide.

11. When changing the direction of the spindle rotation, it is necessary to stop the spindle first, and it is not allowed to suddenly change the direction of the spindle rotation.

12. It is not allowed to use the anti-vehicle method to brake the spindle rotation during work.

13. When processing steel parts to be processed into cast iron parts or other non-ferrous metal parts, the chips should be completely removed and the coolant should be wiped clean.

When processing cast iron parts or other non-ferrous metal parts to machined steel parts, the chips should be removed, and the guide surface should be thoroughly cleaned and lubricated.

14. When doing high speed cutting, you must pay attention to:

1 Cutting steel parts must have chip breaking devices.

2 must use live top dust

15. The workpiece weight and speed of the large lathe must be carried out according to the requirements of the instruction manual.

Seriously after work:

1. Move the slide and tailstock to the rear end of the lathe.

2. Parking more than one class, large unprocessed workpieces, supported by wooden blocks.

Internship Content:

First, the basic knowledge: the principle of turning machining and processing range and characteristics.

The basic structure, type and use of ordinary lathes.

The type, structure and function of the turning tool, the simple sharpening method of the turning tool and the installation.

Method of turning outer circle, end face, groove, thread, and taper.

The method of installing the workpiece and the function of the main auxiliary file of the lathe.

The concept and choice of turning amount.

The correct use of commonly used measuring tools, the inspection of the size.

General process knowledge of turning.

Turner safety technology.

Second, the basic skills:

Properly operate the lathe independently, install and use common tools.

Turning of outer end faces, grooves, threads and tapers.

Complete the work piece independently.

Internship results:

The internship time of the lathe is relatively abundant, because it took two days to train the trainer. We also have two parts, one is a stepped cylinder and the other is a small handle. In addition, we use the rest of the time to process some gadgets with great imagination, such as exquisite pagodas, gourds, bullets and so on.

Summary experience:

The lathe is a job type for me, and it is also the one with the longest practice time and the best self-feeling.

The teachers seem to be very relaxed, because they simply talk about the use of the lathe, basically just sit and chat, and occasionally come out to help us see the progress of our practice. Then, whoever we accidentally broke the turning tool, we need the teacher to help out the grinding tool. In addition, basically, we are all exploring the tossing in the sensation. It can't be said that such a toss has no effect. After all, we have made so many small and cute gadgets. This can't be said to be a small success for us, because there is no unsatisfactory technology, and this kind of gadget is not good even if it is made.

Therefore, the most important thing about the work on the lathe is a mental work. We are learning ordinary lathes. All operations are artificially controlled. If you want to make exquisite craftsmanship, it is difficult to meet the requirements without skillful and meticulous arrangements. It requires you to get a part drawing that needs to be machined. Not only does it know to arrange the piece first, but after processing it, you must also understand that both hands, brain and body parts should be fully coordinated when dealing with it. It can be said that it is "to take the lead and move the whole body." Moreover, the precautions in the work of the lathe are quite complicated, and you need to have patience and perseverance.

Part 2: Turning Internship Report

A two-week metalworking internship. During this period, we were exposed to the basic operational skills of machining. Under the patient's patience and meticulous cooperation, we did not have a major injury accident, basically met the expected internship requirements, and successfully completed. Internship assignment.

Before the internship, I heard that the students who had already interned were very tired, but on the first day of the internship, I still came to the internship center with excitement and curiosity. Looking at a huge machine, I looked at it and thought about it. They are a bit difficult. I don't know if I will teach you after I have taught me. In short, a few sly, a few expectations. Our classmates are probably curious as well, touching them on the machine and touching them there. Next, the teacher told us the basic tasks and purposes of this internship, and repeatedly emphasized safety issues. The last is lectures and demonstrations.

We mainly study the lathe. When we enter the operation room and see the lathe, we know that the operation should not be easy. As a result, the teacher also said that the lathe is the most difficult. I told myself at the time that my hands-on ability was not strong enough. I must listen carefully! The lathe is using the rotation of the workpiece and the linear and curved motion of the tool to machine the workpiece. For the basic content of the work, it can be turned. Outer circle. Inner circle, end face, cutting, grooving, inner and outer cones, various threads and knurling and forming surfaces. After the introduction of the teacher, I know that the installation of the turning tool must pay attention to the following points: First, the extension length of the turning tool holder 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. Third, the turning tool tip should be at the same height as the center of the lathe spindle. Installation of the workpiece: First, the extension should not be too long, affecting the rigidity of the clamping. Second, the clamping must be firm and reliable, to prevent the workpiece from flying out and hurting people, if necessary, with an afterburner. Third, pay attention to the correctness when clamping the blank workpiece. At the same time, there are three methods of cutting, cutting amount selection, manual outer circle, end face and step. 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. In the end, it was a demonstration on the operating machine, and I also looked at it very seriously. The teacher's mission was completed, and then it was our turn to operate on our own. We were in groups of three and each had to process a simple part.

At the beginning, our familiarity with the machine tool was not enough, which caused us to process not only very slowly, but also often made mistakes. The precision of the parts should be very high for the machining parts. If we accidentally waste, we must re-repair. Do, the processing time is long and the tool machine is also somewhat familiar, the processing speed is obviously faster, and the precision is also significantly improved. Finally, three qualified parts were processed in the afternoon of the next day.

In the next three days, the teacher gave us the task of processing a harder part, and the accuracy requirements were higher. Because of the previous foundation, we processed a lot faster, but it should be accurate and the accuracy requirement is higher. The basis of the previous one, we have a higher processing speed, so we often waste. Through hard work, we completed the task under our careful processing and successfully made the parts.

We should be standing for machining, so we were very tired after two weeks, but we were very fulfilled. We learned a lot during these two weeks.

1. Understand the knowledge of mechanical manufacturing process and the application of new technology, new technology and new equipment in machinery manufacturing, cultivate, improve and strengthen our engineering practice ability, innovation consciousness and innovation ability.

2. Machine training and training for us have improved our overall comprehensive quality, which has enabled us to not only have a deeper understanding of the significance of the internship, but also improve our practical ability. Combine our better theory with practice and consolidate what we have learned.

3. We also learned the professionalism and rigor of the teacher. Some teachers will show the classmates how to operate again and again until the students are really clear. During the internship, we also promoted the spirited male students who helped the female students and the hands-on students to help the students with weak hands-on ability. They helped each other to learn from each other, and learned how to cooperate and enhance the friendship between the students.

4. The results of the work we achieved during the internship. These small parts, which were once unbelievable, were actually processed by themselves. This sense of pride and achievement is difficult to express in words.

The machine plus internship made me feel the bitterness and joy of being a worker, and tested the knowledge I had learned. The machine plus internship made me deeply understand the meaning of life.

Labor not only transforms the natural world, but also transforms one's thoughts. After this week's mechanical and internship, I also have a deep understanding of this.

1. Labor is the most glorious. Only practice can understand the bitterness and fun of labor.

2. Persevere and be patient.

3. Be responsible and pay attention to safety.

4, as long as you pay will be rewarded.

Practice is the test of truth. Through a week of metalworking internship, I have learned a lot of work common sense, and I have been willing to exercise, have both bitterness and happiness. This is another valuable wealth in my university life. And work will have a big impact.

Soon we will step into the society and face employment. The employment unit will not tell us the work to be done in a nuanced manner like a teacher. More is that we need to observe and learn by ourselves. Without this ability, it will be difficult to meet the challenges of the future. With the rapid development of science and the wide application of new technologies, there will be many areas that we have never touched before. Only dare to try to make breakthroughs and innovations. Just like the car workers we are exposed to, although it is very dangerous, it requires every student to operate and to make finished products, thus exercising the courage to dare to try. The one-week metalworking internship brought us not only the operational skills that we have come into contact with, but also the several abilities that we are required to exercise through several types of work. More are required by each of us after the internship. I have to go to my own situation to reflect, to reflect, to be self-satisfied, to gain something, so that this internship has achieved his true purpose.

Part 3: Internship Report

The car mechanics internship is over, but the feelings brought to me have always stayed in my heart. Important is safety

The teacher told us about similar incidents that happened before. I am really scared. Many people have the same feelings as me. When the teacher saw this, he told us that as long as the correct method is used to master the essentials, there will be no accidents, so I understand that the standard operation is an important guarantee for safety!

First, the safety knowledge of the lathe 1. Wear work clothes for work, girls wear work hats, and will pull into the cap. 2. You must concentrate on your work and you are not allowed to leave the machine. 3, the workpiece and the turning tool need to be clamped firmly, so as to avoid the workpiece and the turning tool flying out and hurting people. 4. When the workpiece is rotated, the workpiece is not allowed to be measured. 5. After the workpiece is installed, the three-jaw wrench must be removed by hand so as not to pay attention to the driving of the lathe, so as to prevent the wrench from flying out and hurting people. 6, go to work is not allowed to cross the train, adhere to their respective jobs, the second lathe practice knowledge teacher first demonstrated the operation method, and processed a part, then let us start processing, at this time the teachers taught very seriously, constantly Shuttle through the crowd, always correct our mistakes in operation, correct the hand shape, patiently analyze the advantages and disadvantages of the sand type we have done over and over again. Although the time is only a few days, the masters are doing their best to teach us something in such a limited time. I hope we can really gain something, not empty-handed. . A very important aspect of lathe machining is to choose the right knife. At the beginning we have to flatten the end face of the given cylinder, we must use the partial cutter to process, then the slotting, then we need to use the slotting knife. . The grooving cutter has a small cutter head width, and has a main cutter and two sub-cutting cutters. The cutter head is small and easily broken, so that a small cutting amount is applied. When grooving, the left and right borrowing method is adopted. After cutting the groove, it is necessary to machine the thread, which is a test for those of us who have never used a lathe. I kept turning the horizontal and vertical control handles, carefully processing them, and it took a whole afternoon to be satisfied, but it was a lot worse than the sample the teacher showed us, and my hand was processed. It was also burnt by the hot iron scraps that flew out. In any case, in a word, it was still unskilled. But I am really happy to see the artifacts I have machined.

Car mechanics internship is a practical basic course. It is an indispensable pre-requisite course for all majors in mechanical engineering to study engineering materials and mechanical manufacturing. It is an important practical teaching link in non-machine related professional teaching programs. Based on this, students must give enough attention to this course, make full use of this month's time, and improve their hands-on ability. Although the engineering training center of our school has such defects as the limited number of equipment and the relatively weak teachers, the school has been effectively organized and shortened, so that the students have completed the internships in batches and achieved the desired results. Time is always rushing away, and it will be like this in a few days. After graduating from college, we have to step into the society and face employment. The employment unit will not tell us the work to be done as little as the teacher. More is that we need to observe, learn and summarize ourselves. Without this ability, it will be difficult to meet the challenges of the future. With the rapid development of science and the wide application of new technologies, there will be many areas that we have never touched before. Only dare to try to make breakthroughs and innovations. A few days of internships brought us, not all of the operational skills we have come into contact with, not just the ability to exercise through several types of work, but more of us need to end each internship. Afterwards, I went to reflect on my own situation, to reflect, to be self-satisfied, to gain something, and to make this internship achieve his true purpose.