Punching machine is a device that uses mechanical force to press metal or other materials through molds. Its working principle is to convert the rotational motion of the electric motor into linear reciprocating motion of the slider through a series of mechanical transmission mechanisms. In this process, the slider drives the upper and lower molds to close, applying pressure to the material placed between them, causing plastic deformation or fracture of the material, thereby forming the desired shape of the workpiece.
Types of punch presses
Punching machines can be classified into various types based on their driving force and structural characteristics, including:
Mechanical punch press: using mechanical transmission systems such as crankshafts, connecting rods, etc., suitable for most ordinary sheet metal stamping processes.
Hydraulic punch press: using a hydraulic system as the driving force, it is divided into hydraulic pressure type and hydraulic pressure type, suitable for heavy or special mechanical processing.
Servo punch press: driven by servo motors, it can achieve accurate speed and position control, suitable for occasions that require suitable precision for machining.
Open and closed punch presses: Open punch presses have relatively simple structures and are suitable for light or medium-sized processing; The closed punch structure is relatively stable and suitable for heavy or fine processing.
Single axis and double axis punching machines: classified according to the number of points and load-bearing capacity of the worktable.
Crankshaft, eccentric wheel, and elbow connecting rod punch presses: Different transmission structures adapt to different processing requirements and working conditions.
Application of Punching Machines
Punching machines are widely used for stamping and forming hardware components in industries such as electronics, communications, computers, household appliances, furniture, and transportation (automobiles, motorcycles, bicycles). They can perform various processing techniques such as punching, bending, stretching, hot forging, warm forging, cold forging, etc.
Characteristics of punch press
Modern punching machines typically have high rigidity, precision suitable frames, stable precision suitable components, as well as excellent operational performance and safety. In addition, many punching machines can be equipped with automatic feeding devices to achieve automated production, improve production efficiency, and reduce labor costs.
