The Rise of Heavy Industry 1980

The next morning, Zhang Miaomiao came to the office after breakfast and found that there was no one inside, and Wang Chaoyang's desk was full of drawings.

"It's so ugly!"

There are many traces of alteration on the drawings, and the layout of the drawings is not very beautiful, so the basic skills of drawing are not enough at a glance!

Zhang Miaomiao did not have time to despise Wang Chaoyang's basic skills, and was attracted by the contents of the drawings. The picture is a set of tooling, the structure is relatively simple, only four parts, but the accuracy of the parts is very high, reaching the micron level, and the shape tolerance given by the single part drawing of the part is very complex.

On a stack of straw paper next to the drawings, a lengthy calculation formula was written, and Zhang Miaomiao could see that it was used to calculate the cumulative tolerance. She often calculates the cumulative tolerance herself, but the formula Wang Chaoyang wrote this time is a little different from the one she used in the past......

"Morning!" At this time, Wang Chaoyang walked into the office, his eyes blank and angry.

"Did you do all this last night?" Zhang Miaomiao asked.

"Yes......" Wang Chaoyang said.

"This is also a tolerance calculation, why can't I understand it?" Zhang Miaomiao couldn't help but ask.

"It's least squares...... I'm so sleepy, I'll get some sleep first, and I'll explain to you later...... Oh yes, I only drew a sketch of the drawing, you can help me fix it, otherwise I will be scolded by the workers when it is sent to the workshop......

" After speaking, Wang Chaoyang fell asleep on the table, Zhang Miaomiao was already unable to complain, as far as the sketch you drew, wouldn't it be more messy to repair it again? Zhang Miaomiao took out the new paper and planned to draw it again.

Wang Chaoyang slept until nine o'clock, and when he woke up, Zhang Miaomiao had finished drawing the drawings.

Looking at the drawings drawn by others, whether it is the overall layout or line control, they are so beautiful, and even the handwriting of the annotations is very neat and beautiful! This is the gap!"

This set of tooling will be used to measure the span distance of the gear, so as to avoid errors caused by manual measurement. Wang Chaoyang explained.

Zhang Miaomiao nodded, which she had already thought of when she was drawing. What she couldn't understand was how the tolerances on the papyrus were calculated.

"Tolerance calculations, which used to be commonly used for direct accumulation, can be used in places where the accuracy requirements are not high or the size management is not particularly strict, but it is not suitable for cross-bar spacing tooling.

Wang Chaoyang pointed to the general drawing of tooling: "You see that the accuracy of the gear across the bar distance is within one thousandth of a millimeter, with this accuracy as the goal, if the tolerance is calculated according to the direct accumulation method, the size of all parts must be controlled within one thousandth of a millimeter...... But you also know that one ten-thousandth of a millimeter is already beyond the processing capacity of Red Star!"

Zhang Miaomiao nodded thoughtfully: "So you use ...... Use

the least squares method?" Wang Chaoyang nodded and said, "Yes, the least squares method is closer to reality, so the results obtained in this way are not too harsh...... You see, now we only need to control the dimensional accuracy of the parts to one thousandth of a millimeter.

In fact, Wang Chaoyang did not explain this in depth, because once it is explained in depth, it will involve the fields of engineering capabilities and process control, which will develop into independent disciplines in later generations, which are very profound, and it is no exaggeration to say that they may not be able to learn thoroughly in four years of undergraduate.

Next, Wang Chaoyang personally sent the drawings to the workshop and handed them over to Liu Degui. After reading the drawings, Liu Degui's eyes widened like a cow, because the processing was too difficult.

However, according to Liu Degui's temper, no matter how difficult it is, he will not back down, he decided to put on the battle in person, and promised that it would be completed within one day.

With Liu Degui's words, Wang Chaoyang was relieved.

When he was about to leave the workshop, Liu Xiaomao ran to Wang Chaoyang and said that the factory director had just sent a message, saying that Sun Baoquan, the director of Sanhe Machinery, was here again and asked Wang Chaoyang if he wanted to show up.

"If you don't see it, just say I'm not in the factory!" Wang Chaoyang said directly.

"Okay, Brother Chaoyang, I'll go back to the factory director!" Liu Xiaomao ran towards the factory director's office.

As Liu Degui promised, before getting off work that day, the cross-bar distance tooling was completed, and Wang Chaoyang directly took the tooling back to the office, and after the calibration, he began to measure the actual measurement.

Wang Chaoyang has processed a total of eight gears, and now he has to re-measure the data, and it will definitely not be completed in half a day.

Zhang Miaomiao saw that Wang Chaoyang was going to stay up late again, so he said: "Why do you have to stay up late, it's better to get up early tomorrow to take the test!" Wang Chaoyang smiled: "You should know that getting up early is too difficult for me!"

Zhang Miaomiao was so angry that she jumped to her feet, what kind of logic is this!

The measurement of gears is too complicated, and it is too troublesome for one person to even measure and record, so Zhang Miaomiao has to stay up late with Wang Chaoyang.

After three hours, the two of them measured all the data of the eight gears, looking at Zhang Miaomiao's neat handwriting, Wang Chaoyang said: "Everything is difficult at the beginning, the gear standards of our Red Star Factory are beginning to take shape!" Zhang Miaomiao

also sighed with emotion, and asked: "But we always have insufficient processing capacity, do you think it is really feasible to cooperate with other factories?"

Wang Chaoyang smiled and said: "Of course it works, we can see Sun Baoquan tomorrow!".

The next afternoon, Sun Baoquan came to the Red Star Factory again.

In the past few days, Director Zhao of Longyuan Heavy Industry urged him to ask him about the improvement of gear quality, but Sun Baoquan could not answer, Zhao Lichuan was already angry, and frankly said that he would report the situation if this continued, and it was very likely that Longyuan Heavy Industry would kick Sanhe Machinery out of the supplier list at

that time! The job was almost gone, and it was strange that Sun Baoquan was not in a hurry!

"Lao Wang, I must see Wang Chaoyang this time!" If you don't see me again, I'll stay here and won't leave!" At the first sentence of the meeting, Sun Baoquan said loudly.

"Don't worry, it just so happens that Chaoyang is in the factory today, and I have already sent someone to call it!" Wang Song smiled secretly in his heart, you grandson monkey, you finally can't stand it!

Without much effort, a pair of Wang Chaoyang and Zhang Miaomiao came to the factory director's office. After meeting, Sun Baoquan immediately shouted: "Oh, my eldest nephew, you finally showed up, I just told your father, I won't leave if I don't see you again!"

Wang Chaoyang said apologetically: "Oh, Uncle Sun, I'm really sorry, I was too busy a while ago, and I ran outside every day." My father told me about your coming, and I was still thinking about whether

I should take the initiative to find you!" Zhang Miaomiao stood aside, inexplicably sick to his stomach, how did this thing not change his face After saying this?

Sun Baoquan patted Wang Chaoyang on the shoulder, and then said: "Then I will get straight to the point, I think the matter of gear cooperation, I can study it! Let's talk about the details today!" Wang Chaoyang

smiled: "Uncle Sun has finally figured it out, so what are you going to do?"

Sun Baoquan said: "First of all, I want to know, how did the gear you sent to Director Zhao Lichuan be processed? Can you show me the processing parameters?"

Wang Chaoyang immediately said: "Of course you can." "