When milling is done by rotating a blade blade, whose edges are wound on the circular environments, cutting and removing the cutters are also used. The milling blade is also called the multi-edge tool, and the blade rods are shaped into the workpiece (Such as a grinder). The rotary blade rotational movement is called the main motion or the cutting. To create the thickness of the cutting, the work has a direct linear motion or so-called load motion. The main movement and loading are done by milling. During the milling of each milling blade gear, they only scrape for a short time during their turning and, until they come to the next, they are free to circulate and cool without being cut, so this tool, like a grinder, does not come under permanent pressure due to cutting.
Milling by the body or the front of the milling blade (milling roller and simple milling blade):
When cutting a piece with a milling roller, the blade axis is located parallel to the work surface. The milling rod has a roller form and with the edges that are in its corners, it separates from the cutting unit and the cuttings cut out form (woW). In milling machine with blade forehead, milling blade blades are perpendicular to the working axis. In this case, the milling blade does not work only with the teeth of its environment, but the section of the teeth, which is the same as the forehead milling, also work, and the cuttings taken are of a uniform thickness.
Correction of cut with body and cut with forehead milling:
When the blade blade is removed because it has uneven thickness, the pressure on the milling machine is not uniform and, therefore, if the lamellar blade has a small perimeter, it will not be easy to prevent it. This lame makes it possible on the surface of the milling The work for each blade circle will play a wave sign (milling tongue). But when it comes to cutting the forehead, as it has been mentioned before, the overall thickness of the blade is uniform, and therefore the pressure on the machine will be uniform, and as a result The power of cutting a car is generally about 15% to 20% more than the previous one And if the cutting blade has a slight lamina, then there is no effect on the smooth surface of the carved surface, and therefore the surfaces will be smoother than the blade with the blade body. It is therefore recommended that even smooth surfaces Work in this way.
Merging with moving and reverse:
In the milling of the roller or with the body of the blade, the movement of the load is adjusted to the opposite direction of the milling blade, but it is possible that the direction of the load also accompanies the direction of the blade movement. In the first way, the direction of the blade and the work is not the same and most work with The roller bolt blade is in this state. The scraper is first cut off from the thinner end, and before the blades of the milling blade penetrate into the interior, it is applied to the work surface, and so a lot of friction is generated and the cutting force tries to get the workpiece up Pull it
In another way, the movement of the load in the same direction as the blade blade is done, in contrast to the previous state, the win-winches of the blade take the thickest starting point, and because of this, the workpiece is firmly attached to its support, this way is used to mold the thin pieces. In addition, this There is also a way to apply a deep cut depth, but it should be considered that the construction of the car is subject to such work (in order to move the load with the direction of the milling blade). The point to be followed before is that The molding of the table should not be slipped, because in the bottom If this is the case, the workpiece is pulled to the cutting blade.
Types of milling machines and their building:
The shape and magnitude of the milling parts in terms of economic considerations requires that the milling machines have different types of construction:
Horizontal milling machine:
The machine is used almost to do all the usual milling tasks, and hence the name of the horizontal mill has given it the milling desire to be horizontally bearing.
The body of the car carrying this milling mill, which is a horizontal bearing, with the main loading and loading device, as well as the bench seat with a transversal drawer and milling table and its other accessories.
The milling thread is usually stable on the shaft or slider bearings, and to make it work perfectly without flickering, the milling mill size is chosen sufficiently large. For tightening the milling tools, the milling head has an inner cone and an outer cone.
The main motion machine is the same as the original movement, which is the same as the original motion, and the machine’s displacement is variable in order for the milling blade to be suitable for correct cutting speed. Old cars have a bridging machine, but modern machines work with a flatbed engine, and with the help of a box and lever it may work at 12 different speeds or more.
The machine tightens the piece of work on the milling table and, in order to pass the work from the front of the cutter, the cutter’s cutter is movable in the direction of the height and the transverse drawer in the transverse direction and the desk bench in the longitudinal direction, in order to move the twisted bolts They come in handy wheels, and the car can be moved by the loader. This movement is carried out directly by the motor, either directly or indirectly, by the motor, and can be fitted with a movable hammer or transaxle box device. Different loading speeds can be used. To connect the machine, The barbed wire and a snail device are used and the length of the load may be limited by a specific bundle suitable for work.
Large milling machines often come with fast-moving gears