Technical requirements for the assembly of metal stamping die

Metal stamping parts are metal processed parts formed by die stamping. The quality of the finished stamping parts has a great relationship with the die. Stamping parts manufacturers need to strictly follow the technical requirements when assembling molds, avoid unnecessary waste of materials and increase costs, and strive for one-time pass. So let's take a look at the specific technical requirements for mold assembly. There are mainly the following aspects. 1. The accuracy of the mold base should meet the requirements of the standard (JB/T 8050-1999 'Technical Conditions of Die Die BaseThe closing height of the mold should meet the requirements of the drawings. 2. Assembled die, the upper die should slide up and down along the guide column smoothly and reliably. 3. The gap between the convex and concave molds should meet the requirements specified in the drawings and be evenly distributed. The working stroke of the punch or die meets the technical requirements. 4. The relative position of the positioning and retaining device should meet the requirements of the drawing. The distance between the die guide plates should be consistent with the drawings; the guide surface should be parallel to the center/center line of the die feeding direction; the side pressure plate of the guide plate with a side pressure device should slide flexibly and work reliably. 5. The relative position of the unloading and ejecting device should meet the design requirements, and the working surface is not allowed to have inclination or unilateral swing to ensure that the parts or waste can be unloaded in time and ejected smoothly. 6. The blanking hole or discharging trough should be unobstructed to ensure that the parts or waste can be discharged freely. 7. Standard parts should be interchangeable. The fit of the fastening screws and positioning pins with their holes should be normal and good. 8. Fastener assembly should be reliable. The screw thread length of bolts should not be less than the diameter of the bolt when connecting steel parts, and not less than 1.5 times the bolt diameter when connecting castings; the mating length of the pin and each part should be greater than 1.5 times Pin diameter; the end face of the pin should not expose the surface of the upper and lower mold bases and other parts. 9. The installation dimensions of the metal stamping die on the press must meet the requirements of the selected equipment; the lifting parts should be safe and reliable. 10. The metal stamping die should be tested under production conditions, and the punched parts should meet the design requirements. [Related recommendation] Learn more: What are the methods for polishing the surface of stainless steel? Learn more: Manufacturing characteristics of automobile stamping parts molds Learn more: Points to note in the design of continuous stamping dies (2)