Siheyuan: Starting from a fitter

Chapter 27 Machine Tool Transformation (Additional Updates)
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Recently, I have received a lot of recommendation votes and monthly votes, especially seeing many old friends. I was very touched. I got up early and added updates for everyone to express my gratitude.
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It's a beautiful idea. I wanted to wake up an hour earlier, but actually my biological clock is still at 5 o'clock. I can't go to the park and can only continue my daily work.

When they came to the workshop, after Wang Gong and Master Yi had all arrived, Wang Gong designated a machine tool of the same model for Li Guocheng to perform.

Li Guocheng was not polite and started disassembling it directly. The two of them only had time to take a sip of the high-quality chips that came with them, and they were stunned from ear to ear from beginning to end.It's so smooth. Although the speed has not been significantly improved, the whole process is obviously smoother and smoother, which has completely surpassed their level. During the installation process, Li Guocheng always bumps the gears, and then there will be a certain point on the side of the individual gears. Use a scraper to gently cut the position a few times. Unless you pay close attention, you won't see any obvious changes.

This is even more terrifying. I saw the scraping with my own eyes, and the debris fell from my eyes, but I couldn't see the scratches without looking carefully in my hand. What does this mean? It shows that Li Guocheng's processing precision has surpassed It exceeds the measuring range of all measuring tools in the current factory, and even surpasses the processing accuracy of all senior workers.

This is a monster.

After the maintenance of the entire machine tool was completed, Wang Gong rushed to start it up. The result was exactly what he expected, the operation was smoother, and the noise of the machine tool was smaller than that of the machine tool that had been previously maintained. Excluding the whistling of the motor, if the workpiece is not processed, in the factory environment, It seems that the machine tool is not turned on.

"How did you do that?" Wang Gong seemed to have discovered a new world.

“Adjust the center of gravity of the gear so that the center of gravity of the gear is closer to the balance point. Unfortunately, it can only be fine-tuned. These gears are all worn, and there will be momentary jamming when starting, stopping, or processing the working part of the workpiece, which will reduce the performance of the gear. The service life will also affect the processing accuracy."Li Guocheng said with regret.

"Where did you learn these?" Wang Gong asked curiously.

"Seen in the Library".

“If you reprocess a set of gears, drive shafts and lead screws, how much can the machine tool’s machining accuracy be improved?”

"There should be no problem in improving it by an order of magnitude. This is mainly based on the current models, which are relatively new. But the lathes we have in our factory are from various ages. Most of them are older than me. Most of them are mostly used for rail scraping. Others If parts are replaced, the workload and investment cost will be very large. Given the current situation of the factory, it is very unrealistic. Most of our machine tools have to rely on workers to ensure the processing accuracy based on their familiarity with the machine tools."

"Yes, there is no way. Our country is still poor. Our factory's application for new equipment is submitted every year, but it is rejected every time. New equipment needs to guarantee key factories and key projects," Wang Gong said helplessly.

"Okay, let's complete the task according to the plan first. As for the specific improvement of the machine tools, I will report it to the section chief first, and then we will talk about it." Wang Gong expressed a little more confidence.

The three of them returned to their respective workstations with their own concerns.

The next day, the three got together again, and Gong Wang brought good news. They could try to improve one and see the effect. In order to increase the comparison, the target lathe was still the KT200 with a relatively simple structure, and it would not affect the normal schedule.

Improving machine tools is slow work, and the progress is controlled by Li Guocheng himself.

In the days that followed, when they encountered new models, Master Yi would do it first, and then Master Yi and Gong Wang would drink high breakers and watch Li Guocheng perform.Yes, you heard me right. With the accumulation of experience in dismantling, scraping and assembling, Li Guocheng became more and more proficient in his skills. He involuntarily integrated into the artistic conception of Wu Qin Xi in his work. It is as light as a deer drinking water, as light as an ape, and as flying as a bird when carrying objects back and forth.

During the entire maintenance process, although there was no formal apprenticeship, everyone tacitly understood that one was serious about teaching and the other was diligent about learning.As the maintenance progressed, both of them developed a love for talents, and taught Li Guocheng unreservedly many years of experience, so naturally, one day, Li Guocheng officially called "Master" and his surname was changed. Automatically ignored.

Time goes back to the day when Wang Gong brought good news.

After Li Guocheng completed today's maintenance work, the trio came to the utility room, which will be a special place for machine tool transformation in the future. After being notified, Zhang Tou had brought someone to help clean it up in advance, and the electrician had also replaced a large-wattage light bulb. The entire utility room became clean and bright, with a row of storage shelves placed against the wall with various tools on them.There is a large wooden table of 3*2 meters placed in the middle as a workbench.

At this stage of Zhang Tou, everyone is happy to see him. The better Li Guocheng performs, the happier he will be as a master.

The trio gathered in the utility room for the first time to discuss the next renovation plan.

"Gong Wang, Master Yi, this KT200 is too old, and many parts are severely worn. If the machining accuracy is to reach the target of an order of magnitude of the factory's highest accuracy, most of the parts need to be remade, and only the base and guide rails can be retained."

"Indeed, tinkering may save money, but if we remanufacture these parts this time, it can also show that we have the ability to manufacture machine tools, and the benefits are self-evident," Wang Gong pondered.

"Indeed, no one paid much attention to the center of gravity of the components during manufacturing before. This time, we can adjust it ourselves. This is also a pioneering work," said Master Yi.

"In fact, the concept of center of gravity has long been mentioned in the West, and was first applied to motor rotors. Later, it was gradually unified as dynamic balancing. Because dynamic balancing machines are complex and expensive, they are not commonly used yet."

"You also saw these from the library," Wang Gong said with a smile.

"Yeah", Li Guocheng was panicking, but on the surface the old man was still there.

"I also want to see a perfect machine tool appear in our hands. If we can innovate, it will be of great significance to our domestic machine tool manufacturing technology. However, until there is no result, we still have to be cautious." Wang Gong said seriously.

"I agree with my mature opinion," Master Yi agreed.

"It's up to you two," Li Guocheng happily accepted.

"We started to divide the work. I was responsible for coordinating and drawing drawings, Xiao Li was responsible for providing data, Master Yi was responsible for rough machining, and then Xiao Li was responsible for finishing and assembly. It would be better if we can build a dynamic balancing machine by then." Wang Gong is full of expectations. said.

"no problem".

"agree".

Li Guocheng and Master Yi fully agreed.

"Okay, I'll draft a plan first and submit it for review. After it's approved, we'll get started. Xiao Li can start making preparations now."

"Okay, let me finish the screw first."

The three of them "do it" together. Gong Wang and Master Yi made tea and sat down to watch Li Guocheng dismantle it.

After getting off work a little later, after returning home, I felt something strange as soon as I entered the courtyard. Everyone in the front yard was gone. When I entered the middle courtyard, it became clear. The iconic hospital-wide meeting had been held twice before, both for propaganda. National policy or street notices, but today is obviously different, there is a lot of noise in the compound.

I found a corner, and with Li Guocheng's height, he could just see what happened inside.

When he saw the three people inside, Li Guocheng knew that things were going to be fun today.

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(End of this chapter)