Mechanical classification

Roll forging press

The utility model belongs to a forging method in which a blank passes through two relatively rotating sector dies to produce plastic deformation to form a workpiece. It is a special form of forming rolling (longitudinal rolling). Roll forging can be used to produce connecting rods, fried dough twist drills, wrenches, spikes, hoes, pickaxes and turbine blades. Roll forging process uses the rolling forming principle to gradually deform the blank. Compared with ordinary die forging, it has the advantages of simple equipment structure, stable production, low vibration and noise, easy to realize automation and high production efficiency. Roll forging is divided into blank roll forging and forming roll forging. Blank roll forging is to prepare blank with required shape and size for die forging; Forming roll forging can directly produce forgings that meet the shape and size requirements.

Mechanical pressure forging machine

Mechanical pressure forging machine is a forging machine that converts the rotation of the motor into the linear reciprocating motion of the slider through the crank slider mechanism to form the blank. The mechanical pressure is stable and reliable. It is widely used in stamping, extrusion, die forging and powder metallurgy. The number of mechanical presses accounts for more than half of the total number of various forging machines. The specification of the mechanical press is expressed by the nominal working force (KN), which is the z-large working force designed based on the slider moving to about 10-15mm from the bottom dead center of the stroke (or when the crank angle is about 15 ° - 30 ° from the bottom dead center).

Extrusion forging machine

Hot extrusion forging machine tools are widely used to produce pipes and profiles of non-ferrous metals such as aluminum and copper, which belong to the metallurgical industry. Hot extrusion of steel is not only used to produce special pipes and profiles, but also used to produce carbon steel and alloy steel parts with solid and core (through-hole or through-hole) formed by cold extrusion or warm extrusion, such as rods, barrels and containers with large heads. The cold extrusion forging machine was originally only used to produce pipes and profiles of lead, zinc, tin, aluminum and copper, as well as toothpaste hoses (lead coated with tin), dry battery cases (zinc), cartridge cases (copper) and other products. Cold extrusion is easy to operate and suitable for small parts in mass production.

Spiral forging machine

Screw type forging machine tool is a forging machine which uses screw and nut as the transmission mechanism and transforms the forward and reverse rotation of flywheel into the up and down reciprocating movement of slider by screw transmission. The screw press is usually driven by the motor through the friction disk to drive the flywheel rim to rotate the flywheel. Therefore, this type of press is also known as the friction press. The z-largest friction press in China is 25 trillion n. Later, there was an electric screw press that directly drives the flywheel with a motor. It has a compact structure and few transmission links. Due to frequent commutation, it has high requirements for control appliances and requires special motors.