Smart Industrial Empire
541 Fantastic new drive scheme
"Mr. Yun, are you here?" Upon seeing Yunfei, the busy technicians and designers in the test workshop kept greeting Yunfei.
In this workshop, no matter it is the researchers who originally belonged to Jiuyi Heavy Industry, or the graduates recruited from various universities only a few years ago, they are all very familiar with Yunfei.
However, those college graduates who have just entered the Jiuyi Research Institute do not know that Yun Fei is popular here not because of the salary he gives these researchers and good benefits, but because he is originally from a technical background and has a mechanical talent against the sky Yunfei personally used technology to conquer these technical researchers with eyes on the top of their heads.
If in doubt, ask the boss.
This is the word that all the old employees in the mechanical test workshop know.
However, now that the boss owns more and more industries, he doesn't have much time to come to the research institute.
Yun Fei greeted these researchers with a smile, and walked towards the interior of the experimental workshop.
With the launch of some of the company's numerical control research on heavy equipment, various co-working technicians entered the mechanical experiment workshop of Jiuyi Research Institute. The mechanical experiment workshop, which seemed extremely empty at first, became crowded now.
In the workshop of thousands of square meters, seven or eight sets of various types of heavy equipment occupy half of the area.
In the experimental workshop, the area occupied by each piece of equipment is not large, but some special supporting tool cabinets around the equipment being researched or the fitter’s table used to place some parts that need to be modified or waiting to be assembled. Far more than the area occupied by the device itself.
Moreover, these devices are often disassembled and assembled, and if there is not enough open area around them, it will be difficult to deploy them at all.
Whether it is Jiuyi Heavy Industry or the mechanical experiment workshop, there are clear regulations that any spare parts or tools cannot be placed directly on the ground.
After all, the whole factory is full of some metal parts.If it is scattered on the ground, someone accidentally slips and falls, and if the head is installed on these angular parts, it is very likely that a dead person will appear.
The human brain is far less hard than metal. This is a proven fact thousands of years ago.
"Xiao Deng, how's it going?" Went with Sun Lin to the research area of Longmen Mill, which was isolated with colored strips of cloth, and several technicians in dark blue overalls were surrounding the four-meter-long, two-meter-two-wide machine. , 1.8 meters high small gantry milling for inspection.
"Dr. Deng, how did you make it like this?" Yun Fei looked at the student's hair cut with a look of surprise on his face.There was a patch of black oil on his originally not-so-handsome face, a typical mechanical assembler, and he didn't even look like a doctor!
Deng Lanqing ignored Yun Fei's strange eyes, nodded to him, and then turned his gaze to Sun Lin: "Old Sun, there is still a big problem with the movement of the column. The gap between the guide rail below and the column is still a problem. It's not easy to adjust..." Deng Lanqing didn't expect that the actual action is completely different from the theory.
Originally she thought.Since she has studied mechanics for ten years, she has to solve some mechanical problems, which are easy to handle, but she has worked in Jiuyi Heavy Industry for almost half a year before she understands.Even the assembly of the simplest parts is very knowledgeable.
If you want to engage in design, you must have a wealth of practical experience.
Originally, she thought that she would enter Jiuyi Heavy Industry.Even if you can't be in charge of a project, you must at least be a design supervisor, but I didn't expect it.Sun Lin arranged her for an internship in the experimental workshop!
She has experienced countless internships when she was in college, and when she was in the school laboratory, many designed parts had to be equipped by herself. She thinks that even if the assembly experience cannot compare with those advanced equipment Aside from the fitter, it is more than enough work compared to an ordinary skilled assembler.
But when she arrived at the experimental workshop, she was dumbfounded.
Most of the equipment placed in this workshop is beyond her imagination.
There are not many small equipment produced by the production workshop of Jiuyi Heavy Industry that they visited when they joined the company.
Therefore, she had no choice but to learn the most basic things from scratch with these masters who were said to be mostly nine-level fitters.
"Is the equipment running? Did you find any major problems during the move?" Sun Lin still likes this doctoral student from Huaqing University very much.
There are very few girls who learn mechanics, let alone learn for ten years.
"There was a problem during the movement. The column got stuck when it reached the middle position, and the machine tool gave an alarm..." Deng Lanqing said to Sun Lin.
For the research of CNC gantry milling, Sun Lin wanted to quickly train the successor Yun Fei recruited for him, so most of the work was handed over to Deng Lanqing, who only stepped in at critical moments.
"The column was stuck during the movement?" Sun Lin frowned.
Logically speaking, there shouldn't be such a problem at all, especially since the length of the guide rail of this gantry milling machine is only [-] meters.
The difference between the parallelism of the guide rails under the two columns is only 0.03mm, which far exceeds the precision of the design. After all, most of the equipment used in the test is repaired by hand by senior fitters.
"Mr. Sun, this is estimated to be caused by the inconsistency of the instruction time received by the transmission motors on both sides. Is the gap between the V-shaped groove at the bottom of the column and the guide rail very small?" This is a very common problem.
At least, it is very common in Yunfei's eyes.
"For such a large device, the gap must not be too large. Boss, please don't speak indiscriminately if you don't understand!" Deng Lanqing didn't expect that the boss Yun Fei would actually point fingers.
Part of the reason why she chose Jiuyi Research Institute, a private company's technology development department, was that she was a little annoyed by people in state-owned enterprises or national research institutes who didn't know how to direct them.
She didn't think that Yunfei could understand much professional mechanical knowledge, although Yunfei was the boss of this company that produced mechanical equipment.
"Oh, boy Yun, are you sure?" Sun Lin stared at Yun Fei when he heard Yun Fei say this.
"I'm not sure about this, let's have a look first. These heavy equipment are not like our small numbering machines and milling machines. The smaller the gap between the key components, the better. Our two columns plus the beam and the spindle unit, It weighs more than two tons. If the V-shaped groove between the guide rail and the column does not fit well, it may be difficult for the main shaft to move due to its own gravity..." Although Sun Lin is an expert in mechanics, he is not an expert in machine windows.
Upon hearing Yun Fei's words, Deng Lanqing immediately looked at Yun Fei with admiration.
These professional things can't be fooled by random tricks.
"Mr. Sun, Mr. Hu and the others also suspect this is the reason, but they are not sure, so they are still observing..." Although Deng Lanqing was curious about where Yun Fei learned this knowledge, he still agreed with Yun Fei's point of view .
This can be regarded as an indirect compliment to Yun Fei.
fortunately.She is not a jealous woman.
"If you suspect this is the reason, let's improve it. What are you waiting for? Could it be possible to observe the problem through observation?" Yun Fei said dissatisfied.
These large-scale equipment, unlike small-scale equipment, can produce several test machines at a time. The cost is too high, and because of the high price, the scope of use is not as wide as that of small general-purpose equipment, so when producing test machines.Only one was produced.
If two units are produced, if the design needs to be modified somewhere, maybe all of them will be scrapped!
For any product, the final product can only be obtained by constantly modifying the design in constant experiments.It will even be revised hundreds of times!
The theoretical argument is correct is the device.In practice it is not necessarily true.
This is why Sun Lin asked Deng Lanqing, a top student from Huaqing, to start from the most basic assembly work!Of course, she, the assembler, was just a fake.Her job is just to pass wrenches or screws to those assemblers, and then observe how others assemble.What difficulties will be encountered in the assembly process, and how to solve this difficulty.
"Mr. Hu, can you be sure what the problem is?" Sun Lin was directing the workers to operate the system to keep the column moving forward or backward.Hu Jun, the deputy chief engineer dispatched to Rongcheng by NHI, who was staring closely at the connection between the column and the guide rail, asked.
"I can't be sure now, but there is a 70.00% possibility that the models between the two columns are out of sync. Of course, there are still some areas that need to be improved in terms of mechanics. Mr. Yun, why do you have time to come here?" Hu Jun, who was moving on the guide rail, answered Sun Lin without raising his head.
The age difference between the two of them is not big, and when Sun Lin was still in the Mechanical Academy, he often discussed issues together, so they are very familiar with each other.
But he really didn't expect that Yun Fei would appear in this test workshop.
"Don't doubt it, that's the problem. Look at the guide rail, here, here, and here. These marks are caused by the friction between the post and the guide rail when it was stuck..." Yun Fei walked to the side of the post , squatting down, ignoring the oil on the guide rail, touched it, and found a few traces that were invisible to the naked eye.
Logically speaking, it is impossible for the deputy chief engineer from NHI not to know such a simple question.
But Yun Fei is not good at asking questions in his heart, he can only point out the traces and let them see for themselves.
"Sure enough, it seems that the surface roughness on the guide rail is not enough, and the hardness of the guide rail needs to be increased..." Touching the place Yunfei pointed out with his hand, feeling a little resistance with his fingernails, Hu Jun Immediately found the problem.
Yunfei really doesn't know whether it is necessary to improve the surface roughness and increase the hardness of the guide rail.
He is not a professional in these issues, and even he rarely knows about them.
In the past, the heat treatment he was exposed to was to treat the hardness of some mechanical parts to a range of hrc5-6, but in the machine tool industry, the hardness of some key parts or key parts is basically only a difference of hrc1.
If you don't understand something, don't interrupt indiscriminately.
This self-knowledge is still there.
"These mechanical problems are easy to solve, but the delay in signal transmission of the control system is not easy to solve. Situ, do you have any ideas?" A group of college graduates was in the nearby heavy-duty CNC lathe area to solve the problem of instability in the control system of some heavy-duty digital lathes. Seeing that Yunfei had directly entered the gantry milling area, they brought a group of apprentices over.
"This is really difficult to solve. I think Tanalia from the system should come over to discuss the solution. After all, if two columns are driven by a single motor, it will be too difficult to realize..." Situ Heyun was very happy. I want the x-axis table to move left and right, but such a huge table itself weighs more than five tons, plus the weight of some heavy parts, if you want to drive parts weighing more than ten tons, even if you have Xin Kaixing The rack and pinion transmission pair developed by heavy numerical control equipment is very difficult.
Over time, the rack and pinion under the workbench will be easily worn, which is not good for the accuracy of the equipment.
"Why not install a motor in the middle outside the workbench, and then use a spindle to drive the guide rails on both sides of the workbench to move at the same time?" The thinking of these old guys is limited.
Always design and research according to the traditional or given foreign framework, without other people's technology and experience, how can you produce good equipment that suits your own use?
China's CNC machine tools are already far behind foreign countries. If we follow the experience of foreign countries, it will take many wrong roads. When will we catch up with foreign countries?
"Xiaoyun, we have considered this too. Our DC servo motors are not powerful enough, and large foreign DC servo motors will not be exported to us..." Situ Heyun said shyly.
The DC servo motor he designed could not drive the several-ton spindle unit to move stably for a long time or stop suddenly.
"Add a floating hydraulic device under the column to help reduce the weight of the spindle unit!" Yun Fei said without thinking.
"Ah! Why didn't I think of it! Ordinary heavy equipment uses hydraulic devices to reduce the weight of moving parts. Why do we have to redesign a whole new solution when it comes to numerical control?" As soon as Yun Fei finished speaking, Situ He Yun suddenly A slap on the forehead.
"This plan is indeed very feasible, Xiao Deng, write down what Mr. Yun said, and you will find Andri later, let's hold a meeting to discuss it, and if it proves that this plan is feasible, start today Modify the design, such a plan should be completed within a few days." Sun Lin instructed Deng Lanqing who was in a daze. (To be continued..)
ps: The [-]-word update has finally been completed.
hand drawn...
Brothers, for the sake of seeing how hard Hulu is, why don't you buy more recommended tickets, how about a monthly pass?
Of course, the gourd who rewarded the horse wanted it even more.
How many days have I seen a reward...
In this workshop, no matter it is the researchers who originally belonged to Jiuyi Heavy Industry, or the graduates recruited from various universities only a few years ago, they are all very familiar with Yunfei.
However, those college graduates who have just entered the Jiuyi Research Institute do not know that Yun Fei is popular here not because of the salary he gives these researchers and good benefits, but because he is originally from a technical background and has a mechanical talent against the sky Yunfei personally used technology to conquer these technical researchers with eyes on the top of their heads.
If in doubt, ask the boss.
This is the word that all the old employees in the mechanical test workshop know.
However, now that the boss owns more and more industries, he doesn't have much time to come to the research institute.
Yun Fei greeted these researchers with a smile, and walked towards the interior of the experimental workshop.
With the launch of some of the company's numerical control research on heavy equipment, various co-working technicians entered the mechanical experiment workshop of Jiuyi Research Institute. The mechanical experiment workshop, which seemed extremely empty at first, became crowded now.
In the workshop of thousands of square meters, seven or eight sets of various types of heavy equipment occupy half of the area.
In the experimental workshop, the area occupied by each piece of equipment is not large, but some special supporting tool cabinets around the equipment being researched or the fitter’s table used to place some parts that need to be modified or waiting to be assembled. Far more than the area occupied by the device itself.
Moreover, these devices are often disassembled and assembled, and if there is not enough open area around them, it will be difficult to deploy them at all.
Whether it is Jiuyi Heavy Industry or the mechanical experiment workshop, there are clear regulations that any spare parts or tools cannot be placed directly on the ground.
After all, the whole factory is full of some metal parts.If it is scattered on the ground, someone accidentally slips and falls, and if the head is installed on these angular parts, it is very likely that a dead person will appear.
The human brain is far less hard than metal. This is a proven fact thousands of years ago.
"Xiao Deng, how's it going?" Went with Sun Lin to the research area of Longmen Mill, which was isolated with colored strips of cloth, and several technicians in dark blue overalls were surrounding the four-meter-long, two-meter-two-wide machine. , 1.8 meters high small gantry milling for inspection.
"Dr. Deng, how did you make it like this?" Yun Fei looked at the student's hair cut with a look of surprise on his face.There was a patch of black oil on his originally not-so-handsome face, a typical mechanical assembler, and he didn't even look like a doctor!
Deng Lanqing ignored Yun Fei's strange eyes, nodded to him, and then turned his gaze to Sun Lin: "Old Sun, there is still a big problem with the movement of the column. The gap between the guide rail below and the column is still a problem. It's not easy to adjust..." Deng Lanqing didn't expect that the actual action is completely different from the theory.
Originally she thought.Since she has studied mechanics for ten years, she has to solve some mechanical problems, which are easy to handle, but she has worked in Jiuyi Heavy Industry for almost half a year before she understands.Even the assembly of the simplest parts is very knowledgeable.
If you want to engage in design, you must have a wealth of practical experience.
Originally, she thought that she would enter Jiuyi Heavy Industry.Even if you can't be in charge of a project, you must at least be a design supervisor, but I didn't expect it.Sun Lin arranged her for an internship in the experimental workshop!
She has experienced countless internships when she was in college, and when she was in the school laboratory, many designed parts had to be equipped by herself. She thinks that even if the assembly experience cannot compare with those advanced equipment Aside from the fitter, it is more than enough work compared to an ordinary skilled assembler.
But when she arrived at the experimental workshop, she was dumbfounded.
Most of the equipment placed in this workshop is beyond her imagination.
There are not many small equipment produced by the production workshop of Jiuyi Heavy Industry that they visited when they joined the company.
Therefore, she had no choice but to learn the most basic things from scratch with these masters who were said to be mostly nine-level fitters.
"Is the equipment running? Did you find any major problems during the move?" Sun Lin still likes this doctoral student from Huaqing University very much.
There are very few girls who learn mechanics, let alone learn for ten years.
"There was a problem during the movement. The column got stuck when it reached the middle position, and the machine tool gave an alarm..." Deng Lanqing said to Sun Lin.
For the research of CNC gantry milling, Sun Lin wanted to quickly train the successor Yun Fei recruited for him, so most of the work was handed over to Deng Lanqing, who only stepped in at critical moments.
"The column was stuck during the movement?" Sun Lin frowned.
Logically speaking, there shouldn't be such a problem at all, especially since the length of the guide rail of this gantry milling machine is only [-] meters.
The difference between the parallelism of the guide rails under the two columns is only 0.03mm, which far exceeds the precision of the design. After all, most of the equipment used in the test is repaired by hand by senior fitters.
"Mr. Sun, this is estimated to be caused by the inconsistency of the instruction time received by the transmission motors on both sides. Is the gap between the V-shaped groove at the bottom of the column and the guide rail very small?" This is a very common problem.
At least, it is very common in Yunfei's eyes.
"For such a large device, the gap must not be too large. Boss, please don't speak indiscriminately if you don't understand!" Deng Lanqing didn't expect that the boss Yun Fei would actually point fingers.
Part of the reason why she chose Jiuyi Research Institute, a private company's technology development department, was that she was a little annoyed by people in state-owned enterprises or national research institutes who didn't know how to direct them.
She didn't think that Yunfei could understand much professional mechanical knowledge, although Yunfei was the boss of this company that produced mechanical equipment.
"Oh, boy Yun, are you sure?" Sun Lin stared at Yun Fei when he heard Yun Fei say this.
"I'm not sure about this, let's have a look first. These heavy equipment are not like our small numbering machines and milling machines. The smaller the gap between the key components, the better. Our two columns plus the beam and the spindle unit, It weighs more than two tons. If the V-shaped groove between the guide rail and the column does not fit well, it may be difficult for the main shaft to move due to its own gravity..." Although Sun Lin is an expert in mechanics, he is not an expert in machine windows.
Upon hearing Yun Fei's words, Deng Lanqing immediately looked at Yun Fei with admiration.
These professional things can't be fooled by random tricks.
"Mr. Sun, Mr. Hu and the others also suspect this is the reason, but they are not sure, so they are still observing..." Although Deng Lanqing was curious about where Yun Fei learned this knowledge, he still agreed with Yun Fei's point of view .
This can be regarded as an indirect compliment to Yun Fei.
fortunately.She is not a jealous woman.
"If you suspect this is the reason, let's improve it. What are you waiting for? Could it be possible to observe the problem through observation?" Yun Fei said dissatisfied.
These large-scale equipment, unlike small-scale equipment, can produce several test machines at a time. The cost is too high, and because of the high price, the scope of use is not as wide as that of small general-purpose equipment, so when producing test machines.Only one was produced.
If two units are produced, if the design needs to be modified somewhere, maybe all of them will be scrapped!
For any product, the final product can only be obtained by constantly modifying the design in constant experiments.It will even be revised hundreds of times!
The theoretical argument is correct is the device.In practice it is not necessarily true.
This is why Sun Lin asked Deng Lanqing, a top student from Huaqing, to start from the most basic assembly work!Of course, she, the assembler, was just a fake.Her job is just to pass wrenches or screws to those assemblers, and then observe how others assemble.What difficulties will be encountered in the assembly process, and how to solve this difficulty.
"Mr. Hu, can you be sure what the problem is?" Sun Lin was directing the workers to operate the system to keep the column moving forward or backward.Hu Jun, the deputy chief engineer dispatched to Rongcheng by NHI, who was staring closely at the connection between the column and the guide rail, asked.
"I can't be sure now, but there is a 70.00% possibility that the models between the two columns are out of sync. Of course, there are still some areas that need to be improved in terms of mechanics. Mr. Yun, why do you have time to come here?" Hu Jun, who was moving on the guide rail, answered Sun Lin without raising his head.
The age difference between the two of them is not big, and when Sun Lin was still in the Mechanical Academy, he often discussed issues together, so they are very familiar with each other.
But he really didn't expect that Yun Fei would appear in this test workshop.
"Don't doubt it, that's the problem. Look at the guide rail, here, here, and here. These marks are caused by the friction between the post and the guide rail when it was stuck..." Yun Fei walked to the side of the post , squatting down, ignoring the oil on the guide rail, touched it, and found a few traces that were invisible to the naked eye.
Logically speaking, it is impossible for the deputy chief engineer from NHI not to know such a simple question.
But Yun Fei is not good at asking questions in his heart, he can only point out the traces and let them see for themselves.
"Sure enough, it seems that the surface roughness on the guide rail is not enough, and the hardness of the guide rail needs to be increased..." Touching the place Yunfei pointed out with his hand, feeling a little resistance with his fingernails, Hu Jun Immediately found the problem.
Yunfei really doesn't know whether it is necessary to improve the surface roughness and increase the hardness of the guide rail.
He is not a professional in these issues, and even he rarely knows about them.
In the past, the heat treatment he was exposed to was to treat the hardness of some mechanical parts to a range of hrc5-6, but in the machine tool industry, the hardness of some key parts or key parts is basically only a difference of hrc1.
If you don't understand something, don't interrupt indiscriminately.
This self-knowledge is still there.
"These mechanical problems are easy to solve, but the delay in signal transmission of the control system is not easy to solve. Situ, do you have any ideas?" A group of college graduates was in the nearby heavy-duty CNC lathe area to solve the problem of instability in the control system of some heavy-duty digital lathes. Seeing that Yunfei had directly entered the gantry milling area, they brought a group of apprentices over.
"This is really difficult to solve. I think Tanalia from the system should come over to discuss the solution. After all, if two columns are driven by a single motor, it will be too difficult to realize..." Situ Heyun was very happy. I want the x-axis table to move left and right, but such a huge table itself weighs more than five tons, plus the weight of some heavy parts, if you want to drive parts weighing more than ten tons, even if you have Xin Kaixing The rack and pinion transmission pair developed by heavy numerical control equipment is very difficult.
Over time, the rack and pinion under the workbench will be easily worn, which is not good for the accuracy of the equipment.
"Why not install a motor in the middle outside the workbench, and then use a spindle to drive the guide rails on both sides of the workbench to move at the same time?" The thinking of these old guys is limited.
Always design and research according to the traditional or given foreign framework, without other people's technology and experience, how can you produce good equipment that suits your own use?
China's CNC machine tools are already far behind foreign countries. If we follow the experience of foreign countries, it will take many wrong roads. When will we catch up with foreign countries?
"Xiaoyun, we have considered this too. Our DC servo motors are not powerful enough, and large foreign DC servo motors will not be exported to us..." Situ Heyun said shyly.
The DC servo motor he designed could not drive the several-ton spindle unit to move stably for a long time or stop suddenly.
"Add a floating hydraulic device under the column to help reduce the weight of the spindle unit!" Yun Fei said without thinking.
"Ah! Why didn't I think of it! Ordinary heavy equipment uses hydraulic devices to reduce the weight of moving parts. Why do we have to redesign a whole new solution when it comes to numerical control?" As soon as Yun Fei finished speaking, Situ He Yun suddenly A slap on the forehead.
"This plan is indeed very feasible, Xiao Deng, write down what Mr. Yun said, and you will find Andri later, let's hold a meeting to discuss it, and if it proves that this plan is feasible, start today Modify the design, such a plan should be completed within a few days." Sun Lin instructed Deng Lanqing who was in a daze. (To be continued..)
ps: The [-]-word update has finally been completed.
hand drawn...
Brothers, for the sake of seeing how hard Hulu is, why don't you buy more recommended tickets, how about a monthly pass?
Of course, the gourd who rewarded the horse wanted it even more.
How many days have I seen a reward...
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