Siheyuan starts from a better life

Chapter 438, class

Jiang Yan took everyone to the production workshop, where advanced machine tools have been used to produce parts.

After entering the workshop, I saw several technicians operating the silver-gray machine tool. I watched them put the blank on it, press the start button, and then operate it from the side. The machine tool made a uniform sound when running, and the spindle Rotating at high speed, the iron filings on the blank were cut off, and the prototype of a part appeared in front of everyone. After a while, a complete part appeared in front of everyone. This part went from the blank to the The entire cutting process took less than 10 minutes. This production speed undoubtedly shocked everyone.

Jiang Yan was not surprised by this. After the machine tool came to a complete stop, Jiang Yan asked everyone to gather in front of the machine tool and began to introduce its performance parameters. "This is a horizontal machining center independently developed by us. It integrates milling, turning, drilling and other functions, and can complete multi-channel processing of parts."

Jiang Yan picked up the newly processed and slightly hot parts and showed them to everyone.

"You see, the surface roughness of this part reaches 0.01 mm, which is far beyond the processing accuracy of ordinary machine tools."

"Oh!" Several experts stared at the part closely, touched the surface with their hands, and couldn't help but exclaimed in admiration.

"I also learned from some automated machinery, which can achieve precise control and greatly improve processing efficiency and quality." Jiang Yan continued to explain.

Several students also gathered around, their eyes shining brightly, and they took out their notebooks to record the parameters.

"This is amazing. This completely subverts the previous machine tool operating mode." An old expert pushed up his glasses and said in surprise.

"Comrade Jiang Yan, these machine tools you have developed are more sophisticated than what we saw in the documents. They are beyond our imagination!" The other old man also nodded repeatedly.

"Comrade Jiang Yan, you are really amazing. You can develop such advanced equipment by yourself. It's amazing, it's amazing. I admire you very much now."

Jiang Yan waved his hands modestly: "We have to thank all the teachers for their valuable experience and pointing out the direction for us. This is just a preliminary exploration, and there is still a long way to go before the world's truly advanced level."

Jiang Yan said this without any suspicion of flattery. Many of the books on mechanical manufacturing theory that Jiang Yan studied in college in his previous life were written by these people. In other words, these senior people can be regarded as Jiang Yan. Jiang Yan was quite surprised when he recognized these teachers!That's why Jiang Yan said such words, but these people were a little confused.

After visiting this machine tool, Jiang Yan took everyone to see several other machine tools of different types. After viewing it, everyone was full of praise for its sophisticated structure and silent performance.

Next, Jiang Yan took everyone to another workshop, where several machine tools were still being debugged.

"These are new models we are developing, and they will be more efficient and accurate than existing machine tools." Jiang Yan introduced.

These new machine tools are particularly eye-catching. The silver-white bodies exude the cold luster of metal, and the wiring and pipes are in order.

Everyone gathered excitedly in front of a large lathe.

"The spindle speed of this lathe can reach 8000 revolutions per minute, which is much higher than the speed of ordinary machine tools." Jiang Yan patted the main body of the lathe.

"1 revolutions per minute, this... this speed is too fast!" a middle-aged male engineer exclaimed.

"Yes, the high-speed spindle can perform high-efficiency grinding processing. You all know that the high speed greatly improves the manufacturing efficiency. And I have also reasonably optimized the key parts of the machine tool." Jiang Yan explained .

"Mr. Jiang, can you explain to us the design principles of this machine tool and what's unique about it?" said a female engineer.

"Okay! I will give you a brief explanation." Jiang Yan nodded when he saw their eager eyes.
Next, Jiang Yan began to explain the innovations of the new machine tools. For example, these machine tools absorbed the design concept of automated machine tools, and achieved semi-automatic operation and precise control.

Everyone listened with interest and shouted from time to time.

After the explanation, Jiang Yan asked: "Comrades, do you have any questions?" So the students raised their hands to ask questions, many of which were quite sharp.

Jiang Yan patiently answered every question. He could answer some sharp questions appropriately without any panic, with the demeanor of a general. Several old experts he saw also praised him repeatedly, and kept saying that young people are formidable, "There will be successors." Words like that.”

Thinking that the young female engineer was listening to Jiang Yan's answer, she couldn't help but sigh: "Mr. Jiang is really awesome. He is a person who has studied abroad. His theoretical knowledge is also quite solid. No matter what you ask, He can answer difficult questions in a clear and logical manner, and his explanations are relatively easy to understand. It's no wonder that he is the chief engineer at such a young age. I don't know if he is married. "

This last sentence was said in a very low voice, perhaps a murmur to himself.However, such words were still heard by a person next to the female engineer.

After hearing this, the man couldn't help but tease the female engineer: "Sister, why don't I go and ask for you."

The female engineer's face turned red when she heard this. She turned away and said nothing, and she didn't dare to look at Jiang Yan again. However, he still listened carefully to what Jiang Yan said and took notes from time to time. .

Everyone benefited a lot from this morning’s study.

After a fairly hearty lunch, Jiang Yan took everyone to the dormitory area, pointed to a few old tube buildings and said, "Teachers and students, the conditions here are a bit rough, so please make accommodations. "

"It doesn't matter, we don't care about the conditions." An old engineer said with a smile, "As long as we can learn new technologies, we are willing to live in a tower!"

Others also enthusiastically expressed that they did not care about the accommodation conditions and came here to study.

Professor Wang walked to Jiang Yan and whispered: "Xiao Jiang, these young people are used to living in dormitories. The conditions here are already very good for special people. You don't have to worry about them."

The visit to the machine tool was over, and Jiang Yan led everyone to the conference room, ready to start explaining the relevant knowledge of CNC machine tools.Time waits for no one, and now the West has begun to popularize CNC systems.If you are one step slower, you will be slower and need to get it done as soon as possible.

Everyone took out their notebooks, their eyes shining with excitement.

Jiang Yan stood in front of the blackboard, picked up the chalk and began to explain: "CNC machine tools are automated machine tools developed on the basis of ordinary machine tools. It controls the movement of the machine tool through a CNC system. The CNC system mainly consists of a program setting device, data processing It is composed of device, servo system and driving device. "

At this point, Jiang Yan paused, waiting for everyone to finish digesting and recording, and then said: "The user first needs to write a processing program, and then input the program into the CNC system. The system will analyze the program and control the machine tool to complete the processing. The biggest advantage of CNC machine tools is processing Automation and precision. For the same processing task, the efficiency of CNC machine tools can be improved several to more than ten times compared with manual operation. "

As students of Harbin Institute of Technology, everyone knows about CNC machine tools, but after Jiang Yan's explanation, everyone's understanding became deeper.

At this time, a classmate raised his hand and asked: "Mr. Jiang, how does the CNC system analyze and execute the machining program?"

"This is a very good question." Jiang Yan said in approval.Then he explained in detail the working principle of program analysis and analysis.

The lecture lasted for almost three hours, and everyone’s notebooks were already full of content.Jiang Yan also said that his mouth was dry.

"We'll stop here today and let you digest these basic knowledge." Jiang Yan said.

"Thank you, Teacher Jiang!" Everyone stood up and bowed.

Jiang Yan couldn't help but be startled when he heard them calling him teacher, but when he thought about it, these were still students who were studying. If he gave lectures to them, he could be called a teacher.

(End of this chapter)