Metalworking Internship Summary Report
Material College 03 grade polymer class B Wang Cheng, internship certificate number: 110
2005-5-16
Metalworking Internship Summary Report
Time is like running water. In the blink of an eye, the two-week metalworking internship is over. Looking back at the two weeks, although it is inevitable a bit tired, but also learned a lot of things. We can not only learn new knowledge in the internship, but also embody and visualize the old knowledge in the internship, thus deepening the understanding and memory of it. In addition, we can learn the textbook from the worker master. Unable to learn. Perhaps, the internship is testing us, but I think it is more about educating us, cultivating us, educating us on how to manipulate machines for machining, educating us on many important operational skills and skills, and cultivating our rigorous attitude. Good habits and spirits are invested in future study, and we must actively cultivate ourselves in order to cultivate ourselves into a pillar of materials, and cultivate our patience.
Looking back at the internship, it was Monday of the week before May 1st. I didn’t know the real situation of the metalworking internship from the dormitory gathering place, the industrial training center. I felt a bit stunned and nervous in my heart. I only saw it before. After some tired figures of the brothers and sisters, the internship is really tired, I thought. After getting the internship certificate, we officially started the first lesson of metalworking internship - safety education.
After the safety education, the first type of work in my group was a milling machine. The milling machine was carried out in the old building. After coming to the workshop, the master began to explain the equipment and precautions of our work. Looking at these milling machines, the old look, curiosity prompted us to pay attention to their production date, is 1984, as old as I am. The master explained in more detail what we needed and gave us a demonstration. The master still wants us to be afraid of the machine without paying attention to safety, otherwise it will not do well. Then we started our work. Today our task is to mill the cylinder into a square, a group of two students. Although I have seen the master's demonstration, I feel a little nervous in my heart. At the beginning, we are very careful to get familiar with the machine. For a while, we seem to be familiar with this machine. We are also quite open to the hand. The milling cutter has to be in the workpiece again and again. Going over, the first one will look better. Look at the classmate next to you. So fast, he has already made a good second face. The result is that he knows that he has stepped the milling cutter once. 2 mm, I only entered 1 mm. When the second side, our group also entered 2 mm at a time. It may be that our machine is not so good. When the machine enters the knife, it makes a big sound. At this time, the master When he came over, he looked at it and asked us to enter a few mm. We told him very carefully. He criticized us very seriously. It is very easy to destroy the machine. Then we slowly process it. Anyway, No hurry, only one day to process this thing, when we got off work at noon, our group has already processed three faces, in fact, it is quite fast.
After lunch, we went on to continue processing. There was nothing at the beginning. When we processed the fourth side, our machine made annoying noises. The master came over again. What happened? We didn’t operate illegally.
It turns out that our machine has failed. There is no way. We only have to change the machine and have to reinstall the workpiece. It is very troublesome.
On the second machine, I thought it was very smooth, but it was counterproductive, and there was a new situation. This time it was not as serious as it was just that the milling cutter was not straight, so each face had to be milled three times. This will take us more time, but this does not say that the milling cutter does not work, the plane that is milled out is not flat, we have to smooth it out later, ah! Finally, the other students have already been good. When we handed over the artifacts, the master gave me a pass and it was really bad. We got off work after doing a good job of cleaning, and the first day was really impressive.
The next day we were working on PLC. I didn't know what to do at first. Later I learned that it was CNC technology. The teacher gave us a lot of knowledge about PLC. Let us know more about PLC. PLC is a digital system where digital devices are located. It has no mechanical contacts, so it has a long life and it has many other advantages.
Such as small size, light weight, flexible and convenient use, etc., PLC is controlled by using the instruction programming program. When the control logic needs to be changed, it is not necessary to change the PLC, and only the user program in the memory of the PLC is modified. In recent years, PLC cost reduction has been enhanced, and PLCs exist in places where industrial systems are almost in need of control systems. The general application of PLC can be summarized as follows.
1, switching logic control.
2, motion control.
3, loop process control.
4, data processing.
5, communication function.
PLC is essentially a special computer system for industrial control, so it is also a hardware composed of two major parts of hardware and software, including CPU, memory, interface circuit, software for software and user program. The PLC executes the user program in the loop under the management of its software, called scanning. The loop is called a scan cycle at a time. Usually, a scan cycle of a PLC is several tens to several hundreds of milliseconds, and this value is related to the scanning speed of the PLC and the length of the user program.
Then the teacher gave us a demonstration and let us have a deeper understanding.
The next step was to design the program and control the circuit ourselves. It took us a few hours. We finally handed over a program that was not very decent, and it was completed. Indeed, we need to learn too much.
Next is a number of cars, the master explained to us the principle of the number of cars, this time our internship of the car is semi-automatic, is transformed from the ordinary lathe, is the older generation of machines in our school. The master told us the principles, construction and some basic operations of the car. Next, we will practice by ourselves. Each student will do it on their own. We also practice how to adjust the tool. Downstream we also have programming. The fourth type of work is number milling, which is different from milling. I am a bit curious. Digital milling is to use a computer first, use the relevant software to make the program, then connect the machine, and then use paraffin to make the model. The computer room has a lot of models with computers. Of course, there are a lot of options to set up. It’s really complicated. After doing a good job, we tried it on the computer. It seems that there is no problem. So please ask the teacher to check it out. It is still full of loopholes. Under the guidance of the teacher, our work has finally been completed, so we went to the model, only It’s a pity that I got off work after half of it. My work is not finished yet. What to do, there is no way. Just know how to do it. We are satisfied with leaving. The last type of work before May Day was wire cutting. I was very envious when I looked at the models that other students had done before. I also wanted to make a decent thing. I thought about it, I tried a lot, and finally chose a relatively simple design.
After May Day, we carried out injection molding, electric welding, sheet metal, casting and fitter. The impression was deeper than the fitter. It was the hardest job in our metalworking practice. I thought it was just "hand tools for metal." The basic operation of the cutting method is only scribing, sawing, boring, etc. “It sounds very simple, isn’t it just a few? I thought it would be possible to do it all at once. It’s really like this. ? The facts are not as good as I imagined. I will not say anything else. I will cut it. You may have to say that this is not the sawing tool that uses what kind of sawing tool to saw the parts you want to saw. Is it OK? You said There is nothing wrong with it, but it is also wrong. There is nothing wrong with sawing, but how about sawing it? This is a skill. If you don't know how to cut it and go to the saw, then I can say that you are definitely not a qualified product. why would you said this? First of all, if you don't know how to get the saw blade or if your saw blade is not good, you will swing left and right when you saw it. Also, the saw is jagged, if you don't know the direction of its sawtooth. If it is reversed when you are on, then you must have a bad saw. There is also a way to start the saw, there are two kinds: one is the saw from the end of the workpiece away from itself, called the far saw, the other is from the end of the work close to the operator's body saw, you are near saw. Also, the angle of the saw should not exceed 15 degrees. In order to position the saw accurately and smoothly, the saw can be positioned by blocking the saw blade with the left thumb. There is also the speed and length of the sawing. This can only be known after practice. If you don't do it, you just want to never know it.
You just know how to saw, you don't have to be able to saw it, because the material in front of you is iron. Do you think that it is very simple to cut the iron? So here you have to exercise your patience. If you don't have patience, then I can tell you that you must be doing badly. If you don't believe it, you will know it when you try it.
In just two weeks, we have spent a lot of time in the internship factory. Although we don’t have a lot of knowledge, this time let us understand that we need a lot of skills to learn and master. If we don’t participate often. In this aspect of internship, we college students may only be "paper talk" in the future. The society needs talents, and the society needs talents with the ability. Our college students in the new century can only guarantee their own position in the future social competition. I really appreciate the metalworking internship, although it is hard, but it is hard. If I can come again, I am still very happy to participate.
2005-5-16
Metalworking Internship Summary Report
Time is like running water. In the blink of an eye, the two-week metalworking internship is over. Looking back at the two weeks, although it is inevitable a bit tired, but also learned a lot of things. We can not only learn new knowledge in the internship, but also embody and visualize the old knowledge in the internship, thus deepening the understanding and memory of it. In addition, we can learn the textbook from the worker master. Unable to learn. Perhaps, the internship is testing us, but I think it is more about educating us, cultivating us, educating us on how to manipulate machines for machining, educating us on many important operational skills and skills, and cultivating our rigorous attitude. Good habits and spirits are invested in future study, and we must actively cultivate ourselves in order to cultivate ourselves into a pillar of materials, and cultivate our patience.
Looking back at the internship, it was Monday of the week before May 1st. I didn’t know the real situation of the metalworking internship from the dormitory gathering place, the industrial training center. I felt a bit stunned and nervous in my heart. I only saw it before. After some tired figures of the brothers and sisters, the internship is really tired, I thought. After getting the internship certificate, we officially started the first lesson of metalworking internship - safety education.
After the safety education, the first type of work in my group was a milling machine. The milling machine was carried out in the old building. After coming to the workshop, the master began to explain the equipment and precautions of our work. Looking at these milling machines, the old look, curiosity prompted us to pay attention to their production date, is 1984, as old as I am. The master explained in more detail what we needed and gave us a demonstration. The master still wants us to be afraid of the machine without paying attention to safety, otherwise it will not do well. Then we started our work. Today our task is to mill the cylinder into a square, a group of two students. Although I have seen the master's demonstration, I feel a little nervous in my heart. At the beginning, we are very careful to get familiar with the machine. For a while, we seem to be familiar with this machine. We are also quite open to the hand. The milling cutter has to be in the workpiece again and again. Going over, the first one will look better. Look at the classmate next to you. So fast, he has already made a good second face. The result is that he knows that he has stepped the milling cutter once. 2 mm, I only entered 1 mm. When the second side, our group also entered 2 mm at a time. It may be that our machine is not so good. When the machine enters the knife, it makes a big sound. At this time, the master When he came over, he looked at it and asked us to enter a few mm. We told him very carefully. He criticized us very seriously. It is very easy to destroy the machine. Then we slowly process it. Anyway, No hurry, only one day to process this thing, when we got off work at noon, our group has already processed three faces, in fact, it is quite fast.
After lunch, we went on to continue processing. There was nothing at the beginning. When we processed the fourth side, our machine made annoying noises. The master came over again. What happened? We didn’t operate illegally.
It turns out that our machine has failed. There is no way. We only have to change the machine and have to reinstall the workpiece. It is very troublesome.
On the second machine, I thought it was very smooth, but it was counterproductive, and there was a new situation. This time it was not as serious as it was just that the milling cutter was not straight, so each face had to be milled three times. This will take us more time, but this does not say that the milling cutter does not work, the plane that is milled out is not flat, we have to smooth it out later, ah! Finally, the other students have already been good. When we handed over the artifacts, the master gave me a pass and it was really bad. We got off work after doing a good job of cleaning, and the first day was really impressive.
The next day we were working on PLC. I didn't know what to do at first. Later I learned that it was CNC technology. The teacher gave us a lot of knowledge about PLC. Let us know more about PLC. PLC is a digital system where digital devices are located. It has no mechanical contacts, so it has a long life and it has many other advantages.
Such as small size, light weight, flexible and convenient use, etc., PLC is controlled by using the instruction programming program. When the control logic needs to be changed, it is not necessary to change the PLC, and only the user program in the memory of the PLC is modified. In recent years, PLC cost reduction has been enhanced, and PLCs exist in places where industrial systems are almost in need of control systems. The general application of PLC can be summarized as follows.
1, switching logic control.
2, motion control.
3, loop process control.
4, data processing.
5, communication function.
PLC is essentially a special computer system for industrial control, so it is also a hardware composed of two major parts of hardware and software, including CPU, memory, interface circuit, software for software and user program. The PLC executes the user program in the loop under the management of its software, called scanning. The loop is called a scan cycle at a time. Usually, a scan cycle of a PLC is several tens to several hundreds of milliseconds, and this value is related to the scanning speed of the PLC and the length of the user program.
Then the teacher gave us a demonstration and let us have a deeper understanding.
The next step was to design the program and control the circuit ourselves. It took us a few hours. We finally handed over a program that was not very decent, and it was completed. Indeed, we need to learn too much.
Next is a number of cars, the master explained to us the principle of the number of cars, this time our internship of the car is semi-automatic, is transformed from the ordinary lathe, is the older generation of machines in our school. The master told us the principles, construction and some basic operations of the car. Next, we will practice by ourselves. Each student will do it on their own. We also practice how to adjust the tool. Downstream we also have programming. The fourth type of work is number milling, which is different from milling. I am a bit curious. Digital milling is to use a computer first, use the relevant software to make the program, then connect the machine, and then use paraffin to make the model. The computer room has a lot of models with computers. Of course, there are a lot of options to set up. It’s really complicated. After doing a good job, we tried it on the computer. It seems that there is no problem. So please ask the teacher to check it out. It is still full of loopholes. Under the guidance of the teacher, our work has finally been completed, so we went to the model, only It’s a pity that I got off work after half of it. My work is not finished yet. What to do, there is no way. Just know how to do it. We are satisfied with leaving. The last type of work before May Day was wire cutting. I was very envious when I looked at the models that other students had done before. I also wanted to make a decent thing. I thought about it, I tried a lot, and finally chose a relatively simple design.
After May Day, we carried out injection molding, electric welding, sheet metal, casting and fitter. The impression was deeper than the fitter. It was the hardest job in our metalworking practice. I thought it was just "hand tools for metal." The basic operation of the cutting method is only scribing, sawing, boring, etc. “It sounds very simple, isn’t it just a few? I thought it would be possible to do it all at once. It’s really like this. ? The facts are not as good as I imagined. I will not say anything else. I will cut it. You may have to say that this is not the sawing tool that uses what kind of sawing tool to saw the parts you want to saw. Is it OK? You said There is nothing wrong with it, but it is also wrong. There is nothing wrong with sawing, but how about sawing it? This is a skill. If you don't know how to cut it and go to the saw, then I can say that you are definitely not a qualified product. why would you said this? First of all, if you don't know how to get the saw blade or if your saw blade is not good, you will swing left and right when you saw it. Also, the saw is jagged, if you don't know the direction of its sawtooth. If it is reversed when you are on, then you must have a bad saw. There is also a way to start the saw, there are two kinds: one is the saw from the end of the workpiece away from itself, called the far saw, the other is from the end of the work close to the operator's body saw, you are near saw. Also, the angle of the saw should not exceed 15 degrees. In order to position the saw accurately and smoothly, the saw can be positioned by blocking the saw blade with the left thumb. There is also the speed and length of the sawing. This can only be known after practice. If you don't do it, you just want to never know it.
You just know how to saw, you don't have to be able to saw it, because the material in front of you is iron. Do you think that it is very simple to cut the iron? So here you have to exercise your patience. If you don't have patience, then I can tell you that you must be doing badly. If you don't believe it, you will know it when you try it.
In just two weeks, we have spent a lot of time in the internship factory. Although we don’t have a lot of knowledge, this time let us understand that we need a lot of skills to learn and master. If we don’t participate often. In this aspect of internship, we college students may only be "paper talk" in the future. The society needs talents, and the society needs talents with the ability. Our college students in the new century can only guarantee their own position in the future social competition. I really appreciate the metalworking internship, although it is hard, but it is hard. If I can come again, I am still very happy to participate.
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