The process marked by Li Xiang is the process of processing the side oil channel hole. Pen % fun % Pavilion www.biquge.info

Originally, this process was to process seven oil duct holes with a diameter of 8 mm on the side of the engine body, and the function of these seven oil channel holes was to communicate a main oil channel that runs through the entire engine length direction with the oil channel of the main bearing hole of the engine body.

In this way, when the engine is working, when the engine oil passes through the main oil channel, a part of it will enter the main bearing hole through the seven oil channel holes on the side, so as to lubricate the crankshaft and ensure the normal operation of the engine.

However, due to the structure of the second-generation machine, the seven side oil duct holes could not be machined directly on this machine.

Due to the high position of the built-in cavity of the oil cooler, which was newly added to the second generation, it interfered with the stroke of the machine tool, resulting in the impossibility of machining.

This problem is actually very easy to solve, as long as the stroke of the machine tool power head is adjusted, it can be done in advance, but when the transformation was made, most people were troublesome, and directly moved this process to the machining center.

The processing of these seven oil duct holes on the original machine tool was processed by seven gun drills at the same time; In the machining center, there is only one tool holder, and the seven oil channel holes need to be processed one by one, even if the speed and feed of the tool are the same, the time spent on the machining center will be seven times that of machining on the machine tool!

In addition to the problem of machine tool travel, there is also the problem of drill casing, because the width of the second-generation machine is different from the ordinary body, the original drill casing is slightly longer, and needs to be redesigned.

This is even simpler, Li Xiang decided to solve the problem of the drill sleeve first.

Open the CAD software on the computer, Li Xiang is ready to draw the drawings of the drill sleeve, and then you can take the drawings to the fitter master of the fitter workshop to make them.

Drill casing, in the parts of the empty processing plays an important auxiliary role, about 70 percent of the engine processing content of Daxuan power needs to choose drilling, reaming, reaming and boring and other different processing forms, these processing is inseparable from the auxiliary support of the drill casing.

The main function of the drill sleeve is to control the position size of the cutter and the feeding direction of the guide tool, so as to meet the technical requirements of drilling on the inclined plane and curved surface of the machining hole with high shape and position tolerance.

When the fixture positioning accuracy of the machined parts on the equipment is not ideal, sometimes the technical requirement of the machining hole position degree can be reached by deliberately changing the offset of the spindle through the drill casing, which is an emergency method under the premise that the adjustment equipment is more time-consuming.

In addition, the drill sleeve on the individual stations of the special machine line can also play a role in the error-proofing verification of the diameter of the tool, that is, the production line operator inserts the new tool into the drill sleeve hole before replacing the drill bit or reamer tool to verify whether it can pass, so that the risk of tool diameter deviation is controlled.

There are many precautions when designing a drill bushing, and the requirements for its materials are also relatively strict, but Li Xiang, as an assistant engineer who graduated from a mechanical major, designed a drill bushing for him, it couldn't be simpler.

It didn't take long for a drawing of a drill sleeve to be drawn, and it was printed, and Li Xiang took it to Zhang Dongxu, the fitter master.

Last time, Li Xiang designed the online measurement tooling, which was made by the fitter Zhang Dongxu, and the two of them are more familiar, especially Li Xiang's recent limelight, Zhang Dongxu got the drawings, and immediately said that priority processing was given.

Li Xiang was very happy and said: "This drill sleeve has to be made seven, when will it be made, call me, I'll get it." ”

Zhang Dongxu nodded and agreed: "Don't worry, Director Li, I'll go to process it right away, just wait for my call." ”

Li Xiang didn't stay in the fitter workshop for long, walked to the machine body processing workshop, and when he was on the way, he took out his mobile phone and called the electrician Guo Qilin.

"Guo Gong, are you busy now? I've got something I want your help with. Li Xiang said.

At this time, Guo Qilin was really not busy, he was smoking in the smoking room, and when he saw that it was Li Xiang's call, he quickly snuffed out the cigarette butt and picked it up.

In state-owned enterprises, no matter what class he is, his sense of smell is quite sensitive, Li Xiang's recent performance, everyone has seen it, maybe he will be promoted one day, he is now more diligent, and it will be easy to talk when the time comes.

"It's Director Li, I'm not busy now, what's the matter with you?" Guo Qilin hurriedly said, with a flattering element in his tone.

"It's not a big deal, I just want to adjust the stroke of the side oil channel hole processing machine and transfer the oil channel hole processing back to the production line."

Guo Qilin was stunned for a moment, and then replied: "That's it, no problem!" Wait a minute, I'll go back and get some tools and go straight to the machine. ”

Li Xiang shook his head with a smile and hung up the phone, but he clearly remembered that when the second-generation machine of the fuselage line was transformed, it was this Guo Qilin who was unwilling to adjust immediately, so everyone decided to move the side oil channel hole process to the machining center.

At that time, Li Xiang also argued with him because of this matter, but Guo Qilin blocked Li Xiang back with the sentence "You just came here and don't understand the situation".

But only a few days later, Guo Qilin's attitude towards himself took a 180-degree turn, and the reason was very simple: he was appreciated by the chairman.

Li Xiang was too lazy to care, as long as he could complete his work, he didn't have time to study the thoughts of these people, so he put away his phone and continued to move forward.

"Director Li, are you here?" Dong Xiaoming, the operator of the machine tool, saw Li Xiang standing in front of his machine tool and hurriedly said hello.

Li Xiang nodded and asked, "Xiao Ming, do you have a lot of plans today?" ”

Dong Xiaoming shook his head and said, "There are not many plans for the platoon in the past two days, and it's pretty good to rest while doing it." ”

Li Xiang nodded again, there are not many plans, it is just conducive to adjusting the machine tool, otherwise the production will be delayed, and the workshop director Wan Jiale will have to find his own trouble.

"After a while, I will arrange to adjust the machine tool, and the machining of the oil channel hole on the side of the second-generation machine will also be realized on this machine." Li Xiang said to Dong Xiaoming.

Dong Xiaoming was very happy to hear this, because the second-generation machine, as a new product, is more than an ordinary body when calculating man-hours, which means that the production of a second-generation machine earns more wages than an ordinary machine.

However, this had nothing to do with Dong Xiaoming before, because when it came to his process, it would be transferred to the machining center, so he had not yet experienced the benefits of the second-generation machine.

"Really? That's great, I'll prepare it for the electrician to adjust. Dong Xiaoming said with a smile.

At this moment, electrician Guo Qilin walked towards Li Xiang with his toolbox, and said with a smile: "Director Li, I'm here, do you want to adjust now?" ”

Li Xiang nodded and said: "Yes, right now, adjust that power head up by fourteen centimeters, as for the specific adjustment method, you don't need me to tell you, right?" ”

"This little thing, of course, you don't need to worry about Director Li, look at me."

After speaking, Guo Qilin walked to the machine tool with his tools, and Li Xiang looked at him quietly, smiling without saying a word.