The replacement of stamping die parts is not a simple disassembly and installation. It is necessary to follow a rigorous process to ensure mold accuracy and production safety. From preliminary preparation, disassembly process to debugging and testing, each link is closely linked. The following will systematically analyze its key points of operation.
Before replacing stamping die parts, comprehensive preparation is the basis. First, it is necessary to confirm that the model and specification of the parts to be replaced are compatible with the mold to avoid failure to operate normally after replacement due to model mismatch. At the same time, prepare the professional tools required for replacement, such as wrenches, screwdrivers, hammers, etc., to ensure that the tools are intact and the specifications are appropriate to avoid damage to parts or personal injury due to improper tools. In addition, it is necessary to conduct an appearance inspection of the new parts to check whether there are defects such as cracks and deformation on the surface. If necessary, a simple performance test can be performed to ensure the quality of the new parts, which will lay a good foundation for subsequent replacement work.
When entering the disassembly stage, a certain order and method must be strictly followed. Generally, it starts from the external removable parts and gradually goes deeper into the inside. During the disassembly process, it is necessary to record the installation position and direction of each component, especially directional parts such as guide pillars and guide sleeves, to prevent dislocation during installation. For some bolts and nuts with high tightening degree, appropriate tools should be used to gradually loosen them according to the diagonal principle to avoid deformation of the mold due to uneven force. At the same time, the disassembled parts should be properly placed and marked to prevent confusion or loss, especially some small parts, such as springs and pins, which can be placed in special containers and marked with their positions and functions in the mold.
After the stamping die parts are disassembled, it is very important to inspect and clean the mold body. Carefully check the parts of the mold where the parts are installed, such as mounting holes and mounting surfaces, to check whether there is wear, deformation or impurities remaining. If the mounting hole is found to be slightly worn, it can be trimmed with sandpaper or a file, but be careful not to damage the dimensional accuracy of the hole; if the mounting surface is uneven, it can be repaired by grinding. When cleaning, use tools such as brushes and compressed air to thoroughly remove impurities such as iron filings and oil stains inside the mold to ensure a clean installation environment and create good conditions for the installation of new parts.
When installing new parts, follow the opposite order of disassembly. First, install the main key components in place, such as the punch and die, etc. During the installation process, ensure that their positions are accurate, and adjust them by measurement, calibration, etc. For some components that require interference fit, such as guide pins and guide sleeves, presses or other special equipment can be used for press installation to ensure the fit accuracy. When installing bolts and nuts, tighten them according to the specified torque to ensure that the components are firmly fixed to prevent loosening during the stamping process. At the same time, pay attention to the fit clearance between components, such as the punch and die clearance, which needs to be accurately adjusted according to the mold design requirements to ensure the quality of the stamping parts.
After the components are installed, they cannot be put into use directly, and debugging and trial operation must be carried out. First, manually operate the mold to check whether the opening and closing action of the mold is smooth and whether there is any jamming. Observe whether the movement between the components is coordinated, such as whether the sliding of the slider is stable and whether the ejection mechanism can work normally. If any abnormality is found, the machine should be stopped for inspection in time to eliminate the fault. Then, perform a no-load trial run, let the mold run for a period of time without stamping materials, further observe the running status of the mold, and check whether the connection of each part is firm and whether there is any abnormal sound or vibration. After the no-load test run is normal, the test punching is carried out. By testing a small number of products, the quality of the stamped parts is checked to see if there are any problems such as dimensional deviation and burrs, and the mold is fine-tuned according to the test punching results.
After the test punching is completed, the mold needs to be fully inspected and accepted. Check again whether the installation of each component is firm and whether the connection parts are loose. The size, shape, surface quality, etc. of the stamped parts are tested in detail to ensure that they meet the product requirements. At the same time, check whether the various performance indicators of the mold, such as stamping accuracy and production efficiency, meet expectations. If problems are found, make corrections in time until the mold fully meets the production requirements. Only after strict inspection and acceptance, and confirming that the mold is operating normally and the quality of the stamped parts is qualified, can it be officially put into production.
After the mold is put into production, the replaced parts need to be continuously tracked and maintained. Regularly check the use of new parts and observe their wear and tear and performance changes. According to the actual use, arrange maintenance plans reasonably, clean and lubricate the parts in time, and extend their service life. At the same time, establish a mold usage file to record the replacement time, replacement reasons, usage and other information of parts, provide a reference basis for subsequent maintenance and management, and ensure that the stamping die is always in good operating condition.
