Hello everyone, you are on the Mekhamozg channel, my name is Eugene, the topic of today's video is the firmware of hex holes and the stitching head why I decided to flash a hex hole and not drill, I will definitely tell you well, what will I earn as usual before starting work, I created a three-dimensional model of what I am going to make it turned out this is such a piercing head, the idea is not mine, there are factory ones you can buy, but they are not very cheap, and it is more interesting to make something like a simple rotating center in order to save material, I decided to make the main part welded in two parts so that the video would not work I will not focus on simple operations very long, but the most significant interesting ones I will try to consider in more detail my lathe is it- 1m machine from a military box, there are many questions to it, both in design and in execution, sometimes there is a frank marriage, but it also has its own pluses one of which are different devices for Vodskaya who went with him milling tool I have shown but this here is not to demonstrate the validity of the device for say I use it for the first time before there was such a need but for the operation that will this device is simply irreplaceable for a long time I was thinking how to fix my part in this fixture not invented nothing better than to take here is such an aluminum block and tighten its bolts to the device why aluminum could be and steel but to save the material chosen to use aluminum aluminum can then be melted down into something right to pierce the aluminum bar Morse taper turned quite reliable fixation of parts is relatively reliable if you look at this device , now a rather interesting operation begins for the execution of which it was necessary to carve such a beacon, you can see everything symmetrically without beating as I said, this piercing head is very similar in design on a simple rotating center, the whole difference is that the inner and outer parts are located at a slight angle , this device is installed on a lathe just and allows you to shift the axis of the piercing head radially relative to the axis of the tailstock and tilt it slightly forward according to the drawings that I was able to find on the Internet I was able to determine that the displacement should be about one and a half degrees, I decided to use one and a half degrees how to learn in the end, let's see in the end I got something between about 1.2-1.3 it may and for the better decided to leave it as it is, well the part is exposed there are nothing left to squander the landings for pressing in the bearings, because as always I was not sure what the piercing head would turn out to be, I designed it as simply as possible and so that it would be at least somehow maintainable, the distant bearing would grind it on a sliding one and already the nearest one for pressing with a hammer the next part is quite simple therefore, I decided not to show its production in the center To save time, the only thing I made it from two parts, again, the metal, regretted the washer separately and the axle separately then pressed the washer, then the firmware itself follows directly, this is 10 millimeters under 10 hexagon, it is not as difficult to make it as it might seem if you make it from the hexagon, I decided to use the already proven 27 calibrated hexagon here I will not even use the milling device I will clamp directly into the tool holder, the main thing is to install this hexagon relative to the surface of the chuck at an angle of 2 and a half degrees as a result, this is such a pretty beautiful firmware now it only remains to harden it In addition to the firmware for 10 hex, I made another 17 and a square for 13, everything that I planned to grind, I turned now, the moment comes for testing in order to test this piercing head, I decided to make an M12 bolt with an internal hexagon there is just a hexagon for 10 if you do not know what it may seem that the firmware approaches the part at right angles, in fact, due to a slight displacement, the corners of the hexagon do not work all at once, but in turn due to this, the pressure on the firmware is, well, as they write on the Internet, 80 percent less it turned out to make such a bolt I did it according to my sample, it seems very much the only thing that does not shine for further testing, I decided to make a socket head on one side it will have an internal hexagon of 17 and on the other a square for a ratchet compared to the tenth hexagon at 17 it is necessary to exert noticeably more efforts, it is not surprising but it turned out to flash a pretty good hexagon, this is provided that the firmware is made of exactly the same hexagon and now the firmware of a square hole for 13 the area that needs to be cut off this firmware will be one and a half times more than that of a hex firmware for 17, to be honest, it was very difficult but to flash a square one hole i got os s but just now I would like to explain why I have decided to stitch the hexagon rather than drilling but because Allen sum of the angles in the two and a half times less than the sum of the square corners of this experiment, you can see it as if around a circle in this case, 10 millimeters build square and count the sum of the corners, you get 21 millimeters, and if you build a hexagon, you get only 8 millimeters to calculate the sum of the corner, so flashing is pretty profitable in my opinion, surprisingly, but still it turned out to be a pretty good flashing head, meanwhile it is also universal because it is suitable to work not only on a lathe, but also on a milling and drilling machine, the principle of operation is the same alternate pressure on the corners of the hexagon, the only thing that here on the drilling machine is this is due to the rotation of the head itself, so let's summarize what was done, such a piercing head was made 3 firmware with the help of all this was and made here is such a bolt with an internal hexagon M12, then here is such a head according to the model of an external hexagon, I decided not to grind it, let it be so interesting more original, in principle, everything is pretty accurate, which is surprising, and I also stitched this 10-mm steel patch, but also quite enough unfortunately, the material leaves much to be desired.Hexagon from one piece of the hexagon these firmwares were made and this head, in principle, turned out to be the only thing that they already began to sit in places at the end, but at the exit it started to undermine a little why from the third time I managed to drill this hole the first two were unsuccessful, then the holes took away here a little poorly , these are the holes from the previous videos, drilling triangular and square holes, look who did not look, in principle, I think that it turned out well, as you think my friends write in the comments, I hope the video was useful for all your creative successes see you soon
