What is a press machine

A press (including punch presses and hydraulic presses) is a versatile press with a sophisticated structure. The press has the characteristics of wide application and high production efficiency. It can be widely used in processes such as cutting, punching, feeding, bending, riveting, and forming. By applying strong pressure to metal blanks to cause plastic deformation and fracture of the metal, they are processed into parts. When the mechanical press is working, it is driven by an electric motor through a triangular belt to drive a large pulley (usually also serving as a flywheel), which drives the crank slider mechanism through a gear pair and clutch, causing the slider and punch to move down in a straight line. After the forging work is completed, the slider of the mechanical press moves upward, the clutch automatically disengages, and the automatic device on the crankshaft is connected, causing the slider to stop near the top dead center.
Mechanical principle of press machine
The press is driven by a motor through a transmission mechanism to apply machining force to the workpiece. The transmission mechanism is a reduction mechanism with belt transmission and gear transmission; The working mechanism is divided into spiral mechanism, crank connecting rod mechanism, and hydraulic cylinder.
Pressure machines are divided into three categories: screw presses, crank presses, and hydraulic presses. The crank press is also known as a mechanical press. The screw press has no fixed bottom dead point, and can perform multiple strikes to form larger die forgings, including single, continuous, and inch movements. The impact force is related to the deformation of the workpiece,
When the deformation is large, the impact force is small, and when the deformation is small (such as cold strike), the impact force is large. In these aspects, it is similar to a forging hammer. But its impact force is enclosed by the frame, so it works smoothly, with much less vibration than a forging hammer, and does not require a large foundation. The lower part of the press is equipped with forging ejection devices. The screw press has the functions of various forging machines such as forging hammers and mechanical presses, and has strong versatility. It can be used for forging, punching, deep drawing and other processes. In addition, the screw press has a simple structure and is easy to manufacture, so it is widely used.
Press machine, also known as hydraulic press or hydraulic press The press machine consists of four parts: an upward pressure four column hydraulic press; Combination control cabinet; Electric heating system and insulation device; Mold conveying platform. The above composition adopts an integrated design, making it elegant, beautiful, compact in structure, easy to operate and reliable, and easy to maintain.