"After you go back, according to what I just assigned, first measure out all the production dimensions and related parameters of the parts and components that you have received, some parameters cannot be measured directly, at this time you need to use engineering analysis methods to calculate, these must be known to everyone, I will not introduce them one by one, three days later, we will meet here, at that time, we will do further exchanges. ”

After assigning the task, Zhou Jingming clapped his hands and said to everyone with a smile.

"Director Qian, if there is nothing to do, then I will go back first, and I will hand over the parameter measurement and production analysis of the shift gear to me, and I will definitely give you a satisfactory plan at that time." After the rest of the people left, Zhou Jingming said to Qian Longcheng again.

"Then it's hard for you, I won't say much if you're polite, there will be opportunities for cooperation in the future. Qian Longcheng hurriedly said gratefully.

When Zhou Jingming was assigning tasks just now, Qian Longcheng had been standing on the side and listening, frankly speaking, before this, he was not clear about the specific process of localization, he only knew that there was such a thing, but he didn't know how to operate it, Zhou Jingming could be said to have taught him a good lesson!

This also strengthened his trust in Zhou Jingming in his heart, and he felt that he had found the right person this time!

"Okay, then I'll go back first, and I'll come back in three days. With that, Zhou Jingming bent down and was about to pick up a few shift gears and take them away.

"Xiao Zhou, wait a minute, I'll let someone send this to you, it's too tiring for you to take it back alone...... By the way, you're here by bus this time, and I'll have someone drive you back in a while, and it just so happens that these gears can also be taken with you. ”

Zhou Jingming thought about it, and did not refuse, but nodded and said, "Then thank you Director Qian." ”

"By the way, Xiao Zhou, in the afternoon, if it's convenient, you can ask Director He to come to me. Qian Longcheng said suddenly.

Zhou Jingming was stunned, "Is there anything wrong with the gears we produce?"

"No, no, no. Qian Longcheng hurriedly waved his hand, "I'm going to sign another order contract with you." , let Director He come, just for this. ”

"Director Qian, if you are like this, then I really can't help you anymore in this localized bid, if this spreads, it will really be a bribe in disguise. Zhou Jingming hurriedly said.

At this juncture, Qian Longcheng suddenly increased orders for their gear factory, which is easy to make people think about it.

Unexpectedly, Qian Longcheng smiled, "Xiao Zhou, you really misunderstood me this time, even if you don't help me with this localization bidding, I will also find you to place an order, don't think about it." ”

Seeing that Zhou Jingming still showed a puzzled look, Qian Longcheng continued to explain, "Originally, this order was responsible for Shencheng Automobile Gear Factory, didn't I tell you, their benefits are not good, this is not at the beginning of this year, the production scale of their factory is further reduced, and it cannot meet our needs at all, if I don't give this order to your gear factory, I have to find another supplier!"

"Director Qian didn't lie to me, right?" asked Zhou Jingming suspiciously.

"If you don't believe it, you can go back and ask Lao Xu, you can listen to me, and let Director He come in the afternoon." Qian Longcheng said helplessly.

The words have already been said about this, Zhou Jingming didn't want to ask any more, got into the car arranged by Qian Longcheng, and came to the gear factory.

Xunming Gear Factory started production in October last year, and less than four months have passed now, but its development speed. Thanks to the two orders signed with Qian Longcheng's gearbox factory, Zhou Jingming not only repaid the 10,000 yuan he borrowed from Xu Weidong, but also used the remaining funds to buy two second-hand milling machines, further expanding the scale of production, and the number of workers in the gear factory also increased by four at once.

According to Zhou Jingming's calculations, the net profit of the gear factory is basically about 4,000 yuan per month, and if it can sign a contract with Qian Longcheng in the afternoon, the profit will rise further.

Next, if the funds are sufficient, Zhou Jingming wants to further expand the scale of the gear factory, add a production line on the basis of the original workshop, and at the same time eliminate the original old machine tools and replace them with internationally advanced milling machines.

However, the amount of money required is too large, and it is estimated that it will take a long time if it is accumulated only by the internal accumulation of the gear factory.

However, at present, Zhou Jingming is not in a hurry to expand the scale, anyway, the current production capacity is enough to meet the order demand of the transmission factory, and the premature expansion of production scale has caused overcapacity, which is also a loss for Zhou Jingming.

After putting the things in the gear factory, Zhou Jingming found He Yingxun and asked him to go to the gearbox factory in the afternoon and sign a contract with Qian Longcheng in person.

The original Santana used a two-axis manual four-speed gearbox, and later when it was replaced, the four-speed was replaced by the most familiar five-speed gearbox.

Compared with the spur cylindrical gear used in the Shencheng car, Santana uses the helical cylindrical gear, compared with the former, the manufacturing process of the latter is more complex, and the requirements for machine tool parameters are higher.

"The tooth width is 2.6 mm, and the tooth height is ......" Zhou Jingming took the four-speed shift gear in his hand and carefully observed it, and then began to carefully measure the relevant dimensions.

There are not many parameters that can be intuitively measured by gears, there are many parameters, such as modulus, pressure angle and displacement coefficient, which need to be reversed according to the measured data, with the relevant design formula, compared with the measured data, these inverted data are the most valuable reference data for adjusting machine tool parameters, so Zhou Jingming has to be cautious and cautious when measuring each data, after all, the difference of one millimeter, the data obtained may be very different.

After measuring the gear parameters of the four gears of the whole part, Zhou Jingming took the scratch paper, ready to carry out the relevant theoretical calculations, at this time the computer was not popularized at all, Zhou Jingming could only get the necessary data through hand calculations, fortunately in the car factory before, when the design of the clutch was changed, Zhou Jingming did not know how many complicated calculations had been made, but at this time did not feel any difficulties.

In the book "Automobile Design", there is a set of theoretical formulas for the design of gearbox gears, and Zhou Jingming needs to bring the data in his hand into the formula one by one, and then carry out a series of complex formula evolution, and finally get the desired parameters.

Zhou Jingming's calculation was more than four hours, and he didn't even notice when He Yingxun walked in.

"What are you up to, it's densely written on paper. He Yingxun stepped forward, leaned over and asked curiously.

"By the way, I just have something I want to ask you," Zhou Jingming picked up the calculated scratch paper, "You look at the production parameters of these gears, with the current machine tool specifications of our factory, can we produce them?"

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