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Chapter 43: Ordinary Machine Tool Transformation Issues

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    April 18, 1977.  Guan Fei completed his morning troop trip and returned to the brigade headquarters.  This morning he mainly inspected the construction of fortifications on the north and south lines, and he was very satisfied with the results.  That¡¯s it for the northern route. The rivers in the mountains are already narrow. After digging tunnels on the mountainside using blasting, they are already stable enough.  Now it has been re-solidified with reinforced concrete and more shooting holes have been added, making the defense system more complete.  Even if the Su Ding army immediately dispatched a division to attack head-on, the northern front could still make them suffer a bloody blow and return defeated.  Before the southern line, it was very difficult to defend due to its wide front and many defensive points.  "However, after multiple reinforcements with steel and concrete, many new permanent fortifications were built, and with the addition of positions connecting various hilltops, the southern line has also been greatly strengthened.  And with a sufficiently stable position, the 291st Brigade began to slowly push the defense line forward, and established a new defensive position on the river beach and five or six hills in the middle of the hillside, also using reinforced concrete fortifications.  Transportation trenches, hiding caves, ammunition depots, water storage points, field hospitals, etc. are all available.  Coupled with the original heavy firepower positions at the commanding heights of the hills behind, the defense thickness on the southern front has been greatly enhanced. Even if the enemy relies on its strength advantage, it is impossible for the enemy to achieve a strategic attempt to break through at one point and collapse the entire front.  Besides, the southern front is relatively wide.  The total width of the river beaches and gently sloping hills on the southern line is only about three to five kilometers, and the flat land on which troops can deploy is only a few hundred meters.  With a large number of permanent fortifications, open forts and hidden forts, staggered firepower points, and several major commanding heights, the enemy did not have enough space even if he wanted to make a detour.  After months of hard work, Guan Fei can finally announce loudly: The 291st Brigade is invincible!  As a general, you should not worry about victory but first worry about defeat!  Since he opened up the 291st Brigade defense area, he has been working tirelessly to consider how to avoid defeat and prevent the enemy from entering.  To this end, he used a lot of brains, and with the help of the biological assistant brain, he repeatedly conducted virtual deductions, constantly modified the defense system, and personally supervised the construction of the defense line.  Until today, he could breathe a long sigh of relief.  That¡¯s it for the time being. After two more years, when the strength is stronger, it will be time to close the Menggu defense line.  By that time, the entire 291st Brigade was one piece. Even if the enemy attacked with heavy troops, he was confident that the enemy would be trapped under the fortified city and unable to advance even an inch!  The security situation before Brigade 291 relied on domestic guarantees.  But from today on, the future of the 291st Brigade can finally be secured by its own strength instead of relying on external forces!  Once the defense zone is initially stabilized, some long-delayed work can begin.  After completing today¡¯s inspection, Guan Fei was in a very high-spirited manner and smiled at everyone he met along the way.  As long as a soldier saluted him, he would return the salute meticulously and even talk and laugh with them.  "Brigadier, you seem very happy today?" Guard Li Qing made the rice and handed it over. Seeing his smile, he said happily.  "Yes, after reading it today, I finally feel relieved about our defense zone. How could I be unhappy?" Guan Fei happily took the meal and ate it with pickles and leftovers.  "With you here, we won't be afraid even if the enemy comes." Xiao Li said flatteringly.  "Hahahaha!" Guan Fei put down the bowl and laughed loudly, almost choking, tears welling up in his eyes. He pointed at Xiao Li with the tip of his chopsticks: "You, you, you, if I were so powerful, I would have defeated all my enemies long ago.  , are you still cowering in this small ravine? You are not so flattering. " "Aren't you a hidden dragon in the abyss? In the past, the People's Army had no say, so you always suffered defeats.  But now that you finally have the power to command the troops independently, don¡¯t you think our situation is very different? What is this called? This is called the dragon returning to the sea, and it will eventually fly to the sky!" Xiao Li said in a flattering tone!  .  Guan Fei smiled and shook his head, took a few mouthfuls of rice and refused to answer the call.  He can acquiesce to the People's Party's views below, but he will not criticize them himself.  This is a matter of organizing principles.  If he himself does not care about organizational principles, then the collective he will establish in the future will have no organizational principles at all.  "Xiao Li, go and ask Lao Zhang and the others if they are ready. The technical school will officially start operations in the afternoon, and I will go there as well. Also inform the school and ask Teacher Tang and the others to come too." Guan Fei didn't want Xiao Li to come.  If you keep talking nonsense, just send him out to run errands.  "Yes!" When it came to business, Xiao Li stopped smiling, stood at attention seriously, saluted, and ran out quickly.  Guan Fei stopped his chopsticks and conducted a comprehensive analysis of the current human condition of Brigade 291 based on various phenomena of biological accessory brain memory.  The current situation of Brigade 291 can be described in one wordTo describe it, it means people¡¯s hearts are upward.  Solving the problem of eating is the first step. With the communication method to connect with the outside world, the soldiers and educated youth no longer feel isolated from the outside world, and the whole people's hearts will soon be completely stabilized.  The operations of military service societies, banks, and the payment of allowances allow soldiers to truly connect their interests with the 291st Brigade.  Whether it is subsidies, wages, or distribution with a high school degree, these represent the rewards a person receives after working hard, which is very different from pure enthusiasm and belief.  Beliefs and enthusiasm will eventually fade, but interests will not. Instead, as time goes by, they will play an increasingly important role in people's hearts - it may be positive or negative.  Former soldiers might give up and leave, but with allowances and military age and seniority calculation tables, the cost of giving up will be so high that they will think twice before committing very seriously.  After this, coupled with the ever-brightening future of the 291st Brigade, the possibility of the soldiers breaking away from this collective becomes infinitesimally small.  People need faith only when they are alive. This living is the continuous desire and pursuit of material life, which accompanies people throughout their lives.  What Guan Fei has done is to continuously strengthen everyone's firmness in their beliefs, give them material rewards, and promise a better tomorrow, so that they feel that their pursuit is sacred, correct, and closely related to their future.  This in turn strengthens faith.  So, while the defense line is solid, the people's defense line is also solid "Brigadier Guan, you're back!" While he was thinking, there was a loud noise outside the door, and a group of people strode towards where he lived.  Come on, shouting loudly from a distance.  It¡¯s Teacher Tang and the others.  When Guan Fei saw them, he knew that he might not be able to eat anymore. He quickly took a few bites, chewed a few times, swallowed them whole, and put the bowl and chopsticks aside.  He stood up, strode out to greet him, held Teacher Tang's outstretched hand, and said with a smile: "I asked Xiao Li to see if you are ready, but I didn't expect you to come over." "Of course I have to come, I heard you  We are back, how can we sit still!" Teacher Tang laughed, and the other teachers also laughed and said nothing, and nodded in agreement.  After Guan Fei took out the middle and high school textbooks, the attitude of the school teachers towards him suddenly changed drastically.  ¡°Before, everyone only thought that he was the leader of the 291st Brigade. It was great to liberate them from the countryside, but after all, everyone was not from the same group. They thought he was a relatively successful and excellent stupid soldier.  Therefore, I always have a slight sense of alienation towards him. I am polite and respectful when meeting him, but I am never affectionate.  But as soon as the textbook came out, everyone realized how profound Guan Fei's knowledge was.  In the words of Principal An: You think you are senior intellectuals, but when you compare them with Brigadier Guan, you will know who the real senior intellectuals are!  Almost in the blink of an eye, the teachers put aside their sense of superiority towards Guan Fei, became friends with him sincerely, and often asked him for advice on some issues.  The purpose of asking for advice at the beginning was to test him, but soon everyone knew that he was really knowledgeable, and then they turned to asking for real advice.  This kind of consultation reached a new height after Guan Fei asked them how to modernize the C616 general lathe.  The C616 lathe is a general lathe produced by Jinan No. 1 Lathe Factory. Due to its reasonable design and high processing accuracy, it soon became popular all over the country and was vigorously promoted. It has become the first choice equipment for general machinery factories and general equipment production lines in factories and mines.  great.  But no matter how good the C616 is, it is also an early manual lathe. ? Since the 1960s, research on the combination of data control and lathes has been carried out internationally.  By the 1970s, CNC lathes became increasingly mature and began to develop rapidly.  Compared with traditional manual lathes, CNC lathes have low labor intensity for workers, extremely high work efficiency, and the processing accuracy is much higher than manual lathes that rely heavily on workers' skill proficiency.  At this time, C616 seems to be a little behind the times.  But after all, C616 has a large number of customers in China, and given the domestic capabilities, it is unrealistic to promote CNC lathes in large quantities.  Therefore, in order to improve labor productivity and processing accuracy, domestic research on the modernization of C616 has been launched.  This topic proposed by Guan Fei just touched the G point of all teachers, especially university science and engineering teachers, and set off a research peak among the teachers to transform the C616 general lathe.  In fact, in this era, in addition to CNC machine tools, there is also an automated machine tool that is also very popular.  Automatic lathes and CNC machine tools are formally the same thing. They both drive the lathe to work through digital control.  But in essence, they have greatRegional difference.  The realization of automated lathes is to let workers first manually process the workpiece on the lathe and collect movement data through various sensing devices.  Then based on these data, the automated lathe of the same model is allowed to perform autonomous actions according to the predetermined stroke.  This is two different things from CNC lathes using data, modeling in advance through software, and then computer-controlled processing.  In terms of advancement, CNC lathes are far superior to automatic lathes and have much greater development potential.  However, the difficulty of realizing automated lathes is low, so there are many fans. At present, its popularity even exceeds that of CNC lathes, and it is known as the next generation lathe.  Guan Fei asked these teachers to try to modernize C616 without putting forward any preset conditions. He just wanted to see if these teachers had any new ideas under the current ideological trend.  But the result disappointed him.  Although these teachers, especially the engineering teachers in colleges and universities, are very diligent and put a lot of thought into it, most of their improvements are focused on certain details.  For example, the positioning handle is improved, the feeding system is redesigned, hydraulic clamps are installed, etc.  Some of these improvements are noteworthy, but overall, they are not even automatic lathes. They can only be said to be partial improvements in details. The focus is to reduce the labor burden on workers, increase labor efficiency, and improve machining accuracy.  If you look at it from the perspective of this era in China, the improved design of these teachers is already pretty good, but compared with the improvements made by later generations based on the C616, it can almost be evaluated as a dojo inside a snail shell, without breaking away from the original shackles of the machine tool.  Guan Fei looked at all their designs, commented on them one by one, and then took out the improvement drawings he had prepared: a specific blueprint for transforming C616 into an economical CNC lathe.  This transformation information caused a sensation as soon as it was released.  The improvements made by the teachers are all aimed at making up for the original shortcomings of the modified machine tools.  Guan Fei's modification was too bold. He made extensive modifications to the C616's vertical and horizontal feed systems, power components, guide rails, and tool holders.  To put it bluntly, Guan Fei redesigned a new machine tool while retaining the original lathe bed!  After a brief silence, the teachers began to fight back.  Teachers in electronics and electrical engineering first questioned the automatic control system, believing that the design of this system requires very deep knowledge of IC circuits and programming, as well as being extremely familiar with motor and mechanical knowledge.  Guan Fei's design is very good, but to complete such a large-scale transformation, only a specialized mechanical research institute can achieve it, and even the mechanical research institute may not be able to do it. Experts in automation must be invited to participate and assist in the completion.  As we all know, due to the low level of integrated circuits, the domestic automation level is very low.  Even experts with considerable automation skills may not be proficient in mechanics. Putting together a so-called CNC lathe is not a problem, but there are big doubts about whether the improvements are reasonable, whether the accuracy is guaranteed, and whether it can operate normally for a long time.  Their evaluation is: This transformation plan is so ambitious and lacks feasibility that the 291st Brigade cannot complete it independently!  Teachers in mechanical design are also not optimistic about this transformation plan, but judging from the design of the mechanical part that Guan Fei took out, it can be said to be flawless.  They are extremely conflicted. On the one hand, they are very interested in this topic. If it can succeed, it will be a huge gain for them. They extremely hope that the renovation plan will succeed.  On the other hand, it expressed considerable doubts about its feasibility.  Amid this commotion, Guan Fei ignored all opinions and forcibly launched the C616 transformation project.  Teacher Tang and others are members of the renovation project team.  Today, under the leadership of Guan Fei, they will overcome the first difficulty: the research and development of a four-position automatic rotary tool holder.
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