Liu Lang taught everyone a lesson on the spot, and the people around him were immediately in a panic.
"Mr. Liu, wait a minute, we have to remember it quickly!"
Liu Lang's "teaching" on the spot caught everyone by surprise, as they didn't even have a notebook ready.
"Don't worry, I will explain to you in the next two days. The next step is that we will specialize in this kind of CNC machine tools. Let's not mention the control system. We have to take our time, but we can gradually master and learn the design and castings."
Liu Lang waved his hand.
"Yes, we don't have any computers, but this is all steel. As long as it is steel, we have the confidence to make it. Isn't this thing also made by people? What did we have more than three years ago? Nothing.
One, what about now? Look at those bearings, who can compare to them? At worst, we have another three-year attack."
One person shouted with "righteous indignation". He was Ma Ming, the worker who was the first to learn reinforcement welding technology. Now he is a workshop leader and Liu Lang's right-hand man. In three years, he went from being an ordinary worker to an ordinary worker.
The worker grew up to be an eighth-level worker, and his confidence continued to "expand" as his skills improved. In his eyes, there was nothing that was not done by humans, and any difficulty could be overcome as long as he kept his mind down, and he was also Liu Lang's "brainless fan"
", I feel that Liu Lang is capable of everything.
"Yes, Ma Ming said it right. As long as it is a casting, we can find a way to get it out!"
Everyone also agreed.
Everyone also has the capital to be confident. Norinco is now in a strong position. It has overcome many casting difficulties in three years. It has applied for more than 30 national patents, and the 13 cutting tools and eight types of bearings it produces have become the best in the country.
standards.
The quality of these products is much higher than that of domestic products, and the price is lower than that of similar foreign products, so the supply exceeds demand in the market. Of course, most of the people who can afford the products of Norinco are medium and large enterprises, and there are also some similar enterprises in the south, although they have not yet entered the market.
There is an overwhelming situation in the market, but there is no doubt that the market's choice is high-quality products, unless you sell to poor places such as rural areas.
These parts alone can bring more than 10 million yuan in sales revenue to Norinco Group every month. Excluding taxes and costs, there is a profit of nearly 1.5 million yuan. This profit margin is very high. In the machinery industry
It is already remarkable that the profit rate of a company can reach 10%. The profit rate of Norinco Group exceeds 15%, and this profit rate is still based on the high wages of workers. This is mainly due to the high
Technology and new processes, from these two aspects, Norinco has far left other domestic companies behind.
But this is only on the premise that the company only has twenty products, and the added value of these products is actually not high, unlike products such as engine transmissions.
Of course Liu Lang is aware of some of the current problems of Norinco. His purchase of CNC machine tools is to arouse everyone's emotions again and make them realize their shortcomings. Only when you have a goal again can you arouse motivation. Now everyone is "group sentiment"
"Excited", Liu Lang's goal seems to have been achieved.
Liu Lang signaled to everyone that he had something to say, and the place immediately fell silent.
"Everyone is right. The key to any piece of equipment depends on people. Brother Ma was right just now. These are all steel castings. What do we do? We are the people who do these jobs. As long as everyone works together,
In less than five years, we can also manufacture CNC machine tools."
Liu Lang's declaration made everyone excited again. In their eyes, Liu Lang's words were iron rules and truth.
"And let me tell you, this kind of CNC machine tool is not omnipotent, and there will be problems. If there are no professional people to operate it, then it is almost the same as an ordinary machine tool... Let's do it this way, I will give you a lesson the day after tomorrow!"
Liu Lang felt that it was necessary to teach everyone a lesson. The main purpose of this lesson is to make everyone truly realize that this CNC machine tool is not so "scary". It also has various problems, so that everyone can have confidence and at the same time
We also need to teach everyone how to use CNC machine tools and how to debug them.
"Okay, Mr. Liu is going to give us a lecture again!"
What everyone likes most is attending lectures, especially Liu Lang, who can learn a lot every time.
Three days later, everyone gathered in the conference room. Liu Lang specially transported a CNC machine tool to the conference room. Of course, this was also very simple. During the construction of this building, a large elevator was prepared, which could carry several tons of equipment.
of goods.
"The advantage of CNC machine tools is precision, which cannot be achieved by human power.
As we all know, machining accuracy is measured by tolerance levels. The smaller the level value, the higher the accuracy; the machining error is expressed by numerical values. The larger the number, the greater the error. High machining accuracy means small machining errors, and vice versa.
There are 20 tolerance levels of CNC machine tools from it01, it0, it1, it2, it3 to it18. Among them, it01 represents the highest machining accuracy of the part, and it18 represents the lowest machining accuracy. Generally, it7 and it8 are
The machining accuracy is medium level.”
However, the actual parameters obtained by any processing method will not be absolutely accurate. From the function of the part, as long as the processing error is within the tolerance range required by the part drawing, the processing accuracy is considered to be guaranteed.
Everyone thinks that the control system of CNC machine tools determines the accuracy, but in fact it is not completely accurate. It is like a person. Your brain knows what you want to do, but your hands and feet are in vain. It is like a "cerebral thrombosis"
"The patient understands everything, but the parts like his hands and feet don't work."
Liu Lang's description was very appropriate, and everyone burst into laughter.
“Accuracy still depends on the quality of the machine, and the quality of the machine depends on the processing quality of the parts and the assembly quality of the machine. The processing quality of the parts includes the processing accuracy of the parts and the surface quality.
This CNC machine tool is not very accurate now and requires manual adjustment. The adjustment method is to first reduce the machine tool error. There are several ways to do this. One is to improve the manufacturing accuracy of the spindle components."
Liu Lang opened the CNC operation panel.
"The first thing is to improve the rotation accuracy of the bearing. We can choose high-precision rolling bearings, or high-precision multi-oil wedge dynamic pressure bearings; we can also use high-precision hydrostatic bearings."
"Fuck, Mr. Liu's operational ability is so powerful?"
Liu Lang dismantled all the parts very skillfully, and everyone was stunned to see it. Liu Lang rarely did the operation in the past when he taught, but now he showed it a little bit.
Liu Lang had disassembled similar machine tools in the United States, and he remembered all the details so clearly that he could "take them off" with his eyes closed.