The tonnage of the punching machine should be calculated reasonably based on the thickness of the stamping material and the stamping material. Below we will give a rough calculation formula, which is the perimeter of the stamping material (the shape of the stamped product, the total number of positions that have been cut by the cutting knife) x the shear strength (calculated from the hardness and material of the material) x the material thickness x 1.2 (this is a standard number, which is the spring force for mold return and shortage) x 1.3 (reserved amount), in order to calculate the tonnage of the stamped part. If you have more experience, you can also estimate it based on experience.high speed punch press
However, because according to the needs of the mold, large molds generally require a larger punching pressure and installation also requires a larger workbench, so punching machines with larger shapes and larger punches have a larger tonnage; Mechanical punching machines require the use of flywheels to store kinetic energy, in order to convert it into greater force when cutting or deforming metal. Therefore, punching machines with large tonnage are generally equipped with larger and thicker flywheels, such as a 60 ton punching machine with a flywheel diameter of over 1 meter, while those with 40 tons are slightly smaller; In addition,high speed punch press, listening to the frequency (speed) of stamping during work can also distinguish the size of the tonnage, because the stroke of the small tonnage punch is short, the flywheel speed is also fast, and the stamping speed is also fast. Small tonnage can even be stamped once per second. Therefore, based on the sound speed of stamping, the tonnage size of the punch can also be basically determined; After working for a long time in contact with stamping, I have seen more of various types of equipment and can naturally distinguish them.high speed punch press
C-type high-speed punch press is a common type of punch press with the following features and advantages:
Structural features
The shape is “C” type, open body structure, the operation space is more open, convenient for the installation, debugging and maintenance of the mold.
Speed advantage
With the ability of high-speed stamping, the number of stamping times per minute can reach hundreds or even thousands of times, greatly improving the production efficiency.
Precision performance
Adopting advanced control system and precise transmission parts, it can realize high stamping precision and ensure the stability of product quality.
Scope of application
Widely used in electronics, electrical appliances, hardware and other industries, it can be used for stamping all kinds of small precision parts, such as connector terminals, chip pins and so on.
Energy-saving features
Some C-type high-speed presses adopt energy-saving technology, which can effectively reduce energy consumption and production costs.
