Classification And Characteristics Of The Connection Method Of The Parts
The first kind, is the most commonly used screw connection, is in one part’s above tapping screw hole, countersunk head hole for another workpiece. When the screw through the countersunk head hole, and then connected to the screw hole of another part, so as to realize the connection of two parts.This is the connection method that we usually adopt, which is characterized by simple processing, convenient disassembly, and the disadvantage is that the firmness is affected by the strength of the screw. And for the installation of high precision parts, usually before the screw installation, the positioning pin is used to fix the installation position of the parts and then through the screw to lock.
The third connection method is the mortise and tenon joint structure that we use more in carpentry. This connection method is only for wood, which is the most reasonable and effective. In fact, it can also be done for steel. This connection mode, relying on the structure of the self-lock, as well as the coordination between each other, which is also widely used. Its characteristic is better firmness, but the cost for the steel structure processing is relatively high.
The second, the most widely used method is the welding method. Its welding process is the two parts through the medium or through the way of heating, so that local melting, and then cooling, so as to realize the connection of the two parts.This method is simple and rough, but affected by the material, the welding parts must be the same material or similar material, for example, steel must be welded to steel, plastic must be welded to plastic. The firm strength of welding is related to the welding performance of the material itself. Basically, the welding fastness of the welded parts is higher than that of the screw connection. Its biggest characteristic is that it can not be easily removed after welding, nor can it complete nondestructive disassembly.
The fourth way is to connect the two parts with adhesive. This method has quite high requirements for adhesive, and the two parts are usually connected together is also difficult to be intact. And what’s bonded by material is not indestructible.The main problem with bonding two parts is that there is no precision, so it can only be used in some rough joints.
The above is the main connection mode of several parts monomer, in addition, there are some mechanical connection mode, such as keyways connection, pin connection, hinged connection, coupling connection and so on. These connections have risen to the mechanical structure, which is part of the mechanical principle, and each has its own characteristics, which will not be explained here.
As for the milling parts of aircraft, it is easy to see from the picture of the finished product that the machining difficulty is above average. In addition to requiring CNC spare parts supplier to possess fairly mature CNC milling technology, it also tests the skills of the engineers, patience and carefulness of the operators who process the milling parts of aircraft.
Milling processing Milling is to fix the blank and use a high-speed rotating milling cutter to cut on the blank to cut out the required shapes and features. Traditional milling is used more often for simple shapes / features such as contours and grooves. CNC milling machines can process complex shapes and features. The milling and boring machining center can perform three-axis or multi-axis milling and boring processing for processing, molds, inspection tools, tire tools, thin-walled complex curved surfaces, artificial prostheses, blades, etc. When choosing the content of NC milling processing, the advantages and key functions of NC milling machines should be brought into full play. Five-axis CNC machining is a type of milling. Yijin Hardware has purchased such high-precision equipment from Germany. Five-axis CNC machine tools are high-tech, high-precision machines that are specially used to process complex curved surfaces. This machine tool system has a significant influence on the aviation, aerospace, military, scientific research, precision equipment, high-precision medical equipment and other industries of a country. Yjin has such high-precision equipment, and provides professional support for enterprises and government agencies seeking high quality and high requirements around the world. Five-axis CNC includes cradle, vertical, horizontal, NC table + NC indexing head, NC table + 90 ° B axis, NC table + 45 ° B axis, NC table + A axis, two axis NC Spindle and so on.
(1) Double swing head (+ A, + C)
(2) Dip type swing head type (+ B, + C cutter)
(3) Double turntable type (NC work bench)
(4) Prone type work bench (+ B, + CNC work bench)
(5) One pendulum and one rotation form (+ A, NC work bench )
Yijin’s experienced technical operators can skillfully use all five axes to achieve extremely complex geometrically shaped parts and components that are required by the global high-end industry with high accuracy and superb technical level. The use of makes the clamping of the workpiece easy. No special clamps are required during processing, which reduces the cost of the clamps, avoids multiple clampings, and improves mold processing accuracy. Using five-axis technology to process the mold can reduce the number of fixtures. In addition, the 5-axis linkage machine tool can save many special tools in processing, so the tool cost is reduced. Five-axis machining is used in many demanding industries to produce precision parts with fast manufacturing time and repeatable accuracy. YIJIN Hardware is willing to provide high-precision professional five-axis CNC machining services for your industry, waiting for your contact.