Intelligent Industrial Empire

"Why?" Seeing Yun Fei this boy selling Guanzi, although Ou Yuanshan was very dissatisfied, he could only ask Yun Fei why.

"Why? I think, this question, I guess, all the management of machine tool production plants know it. At the same time, all the workers will ask, it is clear that a large number of domestic factories have been established and the market demand is increasing, why is the machine tool market? On the contrary, it hasn't become popular in the 1980s."

"I said, you kid, just talk about the subject. How can you be like you who always hangs your appetite! You are not busy, I do not have as much free time for you as your boss, otherwise you will work because of me. I have not done a good job of deducting my wages, who should I go to?"

Seeing Yun Fei still continuing his nonsense, Ou Yuanshan's impatience was directly expressed.

Yunfei, this bastard, probably wants to save wages.Not to mention that the salary of his workshop director is several times higher than that of the previous workshop director, but his workload is also several times that of the previous workshop directors in the 9327 factory.

Jiuyi Heavy Industry, as long as it is related to heating, is divided into smelting workshops.Take the current smelting workshop as an example. The original woodworking workshop, sand foundry workshop, and heat treatment workshop were merged.

In fact, the workshop has not changed, nor has the work content changed.It just changed the original three sets of management teams into the current one.The smelting workshop is now the largest workshop in the entire Jiuyi Heavy Industry, with close to 400 personnel!

The evil capitalist!

Yun Fei patted his head in a hurry for Ou Yuanshan's impatience.During this period of time, I don't know what's going on. Everything I say is nonsense, as if you can't tell the subject without saying enough nonsense.

This is all idle!Yun Fei despised himself in his heart.

"The reason why many machine tools produced by machine tool companies can't be sold is not other, but the main problem is quality!" Yunfei pointedly pointed out the direct cause of the downturn in the domestic machine tool market.

Beginning in the 1980s, China's economy quickly recovered, and the country was waiting to be flourished, especially the most basic machinery industry, which is related to almost all industries.Stimulated by market demand, major machine tool production plants are expanding rapidly. The most demanding lathes, milling machines and even planers are in short supply in China.Many foreign machine tool factories have exported these ordinary machine tools to China.

Among them, Japan is the worst, a 636 lathe with a maximum machining diameter of 360mm and a 1000mm long workpiece can be sold at a high price of 60,000 to 70 thousand in China!This shows the demand for these machine tools in the Chinese market in the 1980s.

Domestic machine tool manufacturers, driven by the huge profits brought about by the huge market demand, are pursuing quantity and gradually loosening their quality control, making the equipment they sold cannot be compared with the previous ones.

Since the main sources of purchasing these machine tools are in the private market, and many of them are private factories, they are not as regular as state-owned enterprises.These machine tools are running at full capacity 24 hours a day. Many people buy lathes that have been used for less than a year, and the machining accuracy has dropped a lot.Especially those factories that do forged workpieces and intermittent cutting parts, those equipment, even less than half a year, the newly purchased lathe and milling machine can only be used for rough machining of the blank.

The main reason for this situation is that the machine tools they produce are not handled properly.

Domestic factories used to produce machine tools from the Soviet Union's big brother, and they all used natural aging.This natural aging can generally be calculated over the years. Under the stimulus of the domestic market demand, how can they give up a year of profit?In many factories, machine tools are even bought on the market after only two or three months of natural aging.

As a result, the aging treatment did not meet the design requirements, and the internal structure of the machine bed was not very stable.Under the condition of external force, the bed of the machine tool has not disappeared because of the internal stress, new stress is generated, and the bed of the machine tool will gradually deform.

The most obvious manifestation is the bending deformation of the machine tool track.

Everyone knows that the machining accuracy of a machine tool depends largely on the accuracy of the guide rail.After the guide rail is bent, the original linear motion trajectory in the machining process will become a wavy line. Although it is very subtle, the reaction is particularly obvious in the machining of the 0.01mm count.Because of the running track of the tool or the workpiece, the shape of the processed part is determined.

Those old-fashioned machine tools from the 1960s to the early 1980s did not have this problem.Because the natural aging time is long enough, and if the machine tool is deformed during use, the state-owned factories will have special fitters to repair the guide rails, so that the curved track becomes a straight line again.

The decline in quality has hurt the interests of private bosses who are pursuing interests. Even if they have such a demand, they will no longer consider buying a machine tool production factory that allows them to work for the first time.Even if the price drops, they will not buy it.Therefore, many people are willing to spend a high price to buy a good machine tool, and will not spend a low price to buy more garbage equipment.

With a pensive look left behind, Yun Fei walked towards the machine shop.

"Scrap, no matter what reason you have, this spindle must be scrapped!" Yun Fei just walked to the door of the inspection room of the finishing workshop when he heard Cheng Feng's furious voice.

"Manager Cheng, this is not a slight difference (0.01mm, and mechanical technical terms will be used directly in the future), and it will not affect the use..." A worker in his thirties said kind words to Cheng Feng, looking forward to Cheng Feng Feng's men are merciful.

"You're all a master craftsman. It's not a year or two to do this, right? The tolerance given on the drawing is only minus seven μ (0.007mm). You make it now, and it's directly down to minus nine. You said it still works? No? Affect the use? Are you a turner or an assembler?" Cheng Feng snarled.

"What's the matter? In the past, we were out of tolerance by three or five threads. We still don't follow the usual routine? It will only take a while to make a new one..." The worker was still there defending.

In the operation process, mistakes are inevitable. In the past, in the 9327 factory, as long as the over-tolerance is not very large, the use position is not very critical. In addition, the inspection is in place with the workers. At most one word of attention will be passed, even if the parts are used It's not long, just make one more and replace it.

"Scrap, I don't want to hear you explain this. This is a scrap form. Fill it out by yourself!" Cheng Feng ignored the worker, put down the micrometer in his hand, and took out a stack of scrap form from his uniform pocket. He tore off one and handed it to the worker.

"This spindle, I think you are qualified. I want me to fill in the scrap form, but there is no door! Don't you just want to deduct our bonus? I will see how you deduct it today!" The worker's face turned pale. , Directly grabbed the scrap sheet in Cheng Feng’s hand, crumpled it into a ball in his hand, then threw it on the ground, and then stepped on it with his foot, watching this transfer from Huadu with a mocking expression. Not a big manager.

Cheng Feng's face instantly turned into pig liver color.

Yun Fei saw this and knew that if he didn't go up, something would happen.

At the beginning, Yun Fei heard that it was too bad, and felt that it would be no problem to put it in the past. As long as it was not used in key positions, but later heard that there was only a tolerance range of 7μ, he knew that this must be the key. It’s a critical part, otherwise the requirements won’t be so high.This must be used to install bearings.Whether a machine tool has high precision or not, the spindle is also critical.

However, Yun Fei is seldom curious. The parts with 7μ tolerance should be ground by a grinder. Although a skilled lathe can also turn it out, the surface roughness cannot achieve the effect of a grinder at all.

Originally planned to see how Cheng Feng, the quality manager who he hadn't had much contact with for almost a year, deal with this matter, but seeing the worker's performance, he hurried forward.He worried that this uncle-like worker would beat Cheng Feng.

Cheng Feng is a new outsider. Most of the workers in the factory have been working together for more than ten or twenty years. If there are workers who come out to shout, someone will definitely come forward and gang up on Cheng Feng, who represents to work with. The quality manager of the workers who do the right inspection.

In the machining industry, the contradiction between inspection and workers far exceeds the contradiction between workers and managers.

In the production process, workers will inevitably make some mistakes, especially in the processing of parts with high precision requirements. If they are not paying attention, there will be out of tolerance.However, in general lathe processing, the smallest machining error will be more than one wire two. For general lathe machining errors, parts with higher precision requirements, the tolerances are generally one wire two, one wire eight, two wires one, and two wires five. tolerance.

Mainly the bearing position on the shaft and the bearing position in the hole.If it is not that the grinder is not easy to process, or the parts that are assembled with it have special requirements on the mating, the grinder will be used.Of course, single-piece small batch production will also be processed by lathes.

"What's the matter?" Yun Fei asked from his background.

"This spindle, the three bearing positions are two out of tolerance, one is out of tolerance, and the other is out of tolerance..." Seeing Yunfei, a young boss, a petite woman in her thirties was right. Is Yunfei introducing the situation?

"Why is the grinder so bad?" Yun Fei knew what was going on, but still pretended to be confused.

He is quite familiar with the machining process of the lathe spindle.The final grinding machine process is equally divided into three processes: rough grinding, semi-finishing and fine grinding.

"It was not ground by a grinder, but a lathe." The turner suddenly said to Yun Fei.

"Who arranged it?" Yun Fei was immediately angry!

Many experienced state-owned enterprise masters do not follow the process of processing.As long as there are no problems, no one will be held accountable.Yun Fei understands this problem better than anyone else, but he doesn't want the same problem in his factory.