First, you must wear work clothes before entering the factory, and girls must wear work hats before entering the factory for internship.
Second, before going to work, don't drink, don't wear slippers and high heels, don't fight, and don't joke.
Third, wet hands should not touch electricity, let alone the three incoming wires above the air switch.
Four, smell burnt, hear the sound, see smoke, should immediately stop, cut off the power supply, report to the teacher, to be processed before operation.
Operating procedures for locksmith's safety technology:
First, you can't touch the working face with your hands when filing, so as not to slip and get injured, and you can't blow iron filings with your mouth, so as not to fly into your eyes and get injured.
Second, don't use the grinder without authorization. If you want to use it, you can operate it under the guidance of the teacher. People should stand on the side, the workpiece must be clamped firmly, and the force should not be too great.
Three, drilling, it is forbidden to wear gloves, the workpiece must be clamped.
Four, internship, tools should be neatly arranged, after the internship to tidy up the tools, measuring tools, and do a good job in health.
Fitter theory:
First, fitter: the operation of cutting metal with hand-held tools.
Scope of operation: scribing, sawing, filing, chiseling, drilling, tapping and fastening.
Third, the scope of application:
1, clean the blank and mark it on the blank or semi-finished product.
2, processing a single part or a small batch of parts.
3, processing precision parts (such as templates, fixtures, etc. ).
4. Equipment installation, debugging and maintenance.
Fourth, the process
Machining technology of hexagon nut (serial number content tool)
Serial number content tool
1, saw off φ25* 12mm steel rule and saw bow.
2. File two end faces, 9mm steel ruler and flat file.
3. Scribe hexagonal ruler, compasses, sample punching, and? ? Head and stroke needle
4. File hexagonal and 300-angle flat files and vernier calipers
5. Drill a φ8.5 hole, expand φ 12 orifice with a φ8.5 twist drill and a bench drill.
6. Tapping ribbon Tapping M 10 thread wringer and tap (M 10)
Locksmith experience:
After this locksmith internship, I learned a lot in this field. We have a further understanding of the new term "fitter". A fitter means the operation of cutting metal with a hand-held tool. Before that, I really didn't have a qualitative concept about locksmiths, only knowing what it meant, but I couldn't say clearly. Now I finally understand. More importantly, I not only really understood the meaning of the word "locksmith", but also learned a lot of skills in this field. Suppose the content of this fitter's internship is to make a hexagon nut. I really don't think it looks simple, but when you really do it, you will find it difficult to do it. I was still smiling when I was next to the work materials. Isn't it called sawing a material the size of a small nut? Ah, it's very simple. I wanted to start sawing as soon as I got it, but the teacher stopped me. After listening to the tutor's careful teaching, I realized that this is not a "seesaw", but it should be done according to certain norms. If the size is not selected correctly, a lot of man-hours will be spent. What we want to saw is steel with a diameter of 25mm and a length of 12mm. I can't say that it took me a lot of man-hours to finalize the specifications of this material, and I am always afraid of making mistakes. What I saw after I decided, I really realized what it means now. "As long as I work hard, iron bars will be ground into rusty needles." I always feel that I have been working hard for it, but I always feel that I can't cut it off. Let's just say, I don't know. It took me a lot of hours to finally saw it off. This time, I saw my hand.
In this internship, I also encountered a big problem, that is, when drilling a basic nut, I always have no confidence in drilling the hole well, and I am always afraid of drilling it badly. If the drill bit is crooked, it may cause the whole nut to look ugly. Another thing is that I'm a little worried that the twist drill will accidentally get into my hand. I thought about it for a long time, and finally decided to give it a try as my tutor said. When I really started practicing, I found it was not as difficult as I thought. After a while, I thought the punching machine was "good". After a look, I found that I didn't know where the punching machine had gone. Only in this way can we truly understand that "the combination of theory and practice" is not as simple as imagined.
After such a three-week locksmith internship, what I learned and realized was not available to teachers in class. What is "practice makes true knowledge"? No matter how good your theory is, it will be of no help if your practical ability is poor. I believe that after this locksmith internship, I will lay a solid foundation for the next internship as a lathe worker and welder in a great sense.
Internship report of lathe workers
A, lathe worker safety knowledge
1, wear work clothes to work, girls wear work hats, and put their long arms in the hats.
2, must concentrate at work, are not allowed to leave the machine without authorization.
3, the workpiece and turning tool should be clamped firmly, so as to avoid the workpiece and turning tool flying out and hurting people.
4, the workpiece rotation, are not allowed to measure the workpiece.
5. After the workpiece is installed, the three-jaw wrench must be removed conveniently, so as to avoid accidentally starting the lathe, so as to avoid the wrench flying out and hurting people.
6, are not allowed to go to work, stick to your post.
Second, the theoretical knowledge of lathe operators
1. Lathe worker: a worker who operates a lathe and processes mechanical products on it.
2. What is a turn? It is a cold working turning method that changes the size and shape of the workpiece blank by using the rotating motion of the workpiece and the feeding motion force of the cutter.
3, lathe model standard notes and instructions
C W 6 1 40
Lathe characteristics: the model code of the universal flexible lathe group indicates110 of the maximum machining diameter.
Table lathe type
4. Lathe composition: spindle box, change gear box, platform box, carriage box, tool rest, tailstock and carriage (large, medium and small) with three rods (line and light). Control), bed, accessories.
5, lathe maintenance and maintenance
① Lubricating oil ② Check whether the machine tool is in good condition ③ Anti-smashing ④ Cleaning ⑤ Turn off the power supply.
Third, the workpiece
Name processing content tool
1, φ 30 0.5 90 degrees for vernier caliper of cylindrical turning tool.
2, turning steps (line drawing positioning) turning φ22 and φ 17 90-degree cylindrical turning tool vernier caliper.
3. Turning circular turning tools r 105 and r 135.
4, plastic file plastic file, emery cloth