What is the essential difference between precision stamping and ordinary stamping? 'Hardware'

What is the essential difference between precision stamping and ordinary stamping? 15 years of stamping manufacturer Dongguan Hardware tells you! Precision stamping refers to various materials stamped by precision punching machines. These precision stamping parts themselves have higher precision requirements than ordinary stamping, such as terminal blocks, USB ports, motor stators and rotors, air conditioner fins, EI sheets, etc. Large quantity, high precision requirements for products. While ordinary stamping does not require too much precision, manufacturers will consider ordinary stamping from the perspective of cost saving. In the production process of precision stamping parts, when stamping coils or forming, it is necessary to consider the appropriate technical matching of precision punches, molds, materials, lubricants, etc. Precision stamping needs to be produced by a precision punch. The structure, pressure effect and device of the punch have the following requirements: 1. High rigidity in the vertical and horizontal directions. 2. The mold installation workbench and the mold gasket are minimally deformed. 3. It is easy to reach the working state. 4. There must be measures to prevent mold damage. For precision punching machines, in addition to the punching force of the machining center, as a beneficial method to improve the deformation ability of the processing material, each has its own static Two auxiliary pressure generating devices for hydraulic pressure. One is the Y-shaped annular protrusion designed on the pressing plate along the contour of the part, because about 50% of the punching pressure is used to press on the material to be processed, which is called the ring gear pressing plate. The other applies a 25% main punching pressure to the end surface of the product's stripper, which is called back pressure. These three pressures do not interfere with each other, and the size of each pressure is synchronized with the forming. It must be suitable for the processing requirements of forming and blanking, and can be adjusted arbitrarily. In addition, the processing speed must be adjusted according to the requirements of the forming or blanking processing object. . The structure of the mold is not only required to be simple and light, but also suitable for use. When processing thick plates, for molds that are prone to deformation, there is no significant deformation due to the use of central support. Even when the workpiece is squeezed into the die during the punching process, if the ejector retreats, the inside of the die is also supported by the center support. If a hydraulic piston is connected to the side of the ring gear pressing plate and the piston moves backward, the inner side of the punching ring pressing plate is still supported by the center piece.