Structural characteristics of stamping dies and automobile inspection tools and precautions for debugging and installation
The car stamping parts mold indicates that the medium pressure mold is used for production, which has a series of advantages such as saving materials and ensuring quality. It is an important method and process development direction for modern industrial production. It is widely used in automobile and motorcycle industry, aerospace, mechanical and electrical production of instruments and daily necessities, and it is an indispensable tool for developing and completing less or no cutting skills.
According to their different structural characteristics, stamping dies can be divided into blanking dies, bending dies, drawing dies and forming dies, etc. The degree of process combination is divided into three types: single-process dies, progressive dies (continuous dies), buckle composite dies, etc. .
1. The single-process die is a die that only completes one stamping process in one stroke of the slider, also known as a simple middle die. The productivity of this kind of die and the accuracy of the medium pressure part are relatively low. 2. The progressive die is a middle die that completes two or more stamping processes at different parts of the die in one stroke of the slider. The production efficiency of the progressive die is high, and it is easy to complete automation, but it requires positioning accuracy, the production is more laborious, and the cost is also high, which is suitable for larger batch production.
3. The composite die is a die that completes two or more processes in the same direction of the die in one stroke of the slider. Composite molds have high machining accuracy and productivity, but are messy and expensive to manufacture, so they are suitable for mass production.
The purpose of stamping die debugging
1. Help to identify certain standards in the process and medium pressure mold design. For stamping parts with messy shapes or high precision requirements, in the process and design of medium pressure molds, there is a single standard that is difficult to recognize by calculation methods, such as the convex and concave corner radius of the drawing die, etc. , only to adjust the accurate admission.
⒉ Determine the quality of the stamping die. Verify whether the quality of the products produced by the mold meets the requirements, and confirm whether the stamping mold can be handed over to production applications.
3. Help identify the forming conditions and process specifications of the product. After the stamping die is tested and adjusted to produce qualified products, it is possible to grasp and understand the operating performance of the stamping die, product forming conditions, methods and rules during the test punching process, so as to formulate and supply the process regulations for mass production of products. help.
4. After debugging, find problems, solve problems, and accumulate experience, which will help to further improve stamping.
5. Help to identify the shape, standard and material standard of forming parts blank. In the design of stamping die, some stamping parts with messy shapes or high precision requirements, it is difficult to calculate the optimal grinding shape of the blank before deformation during design. In order to obtain a more accurate blank shape, standard and material standard, it is only necessary to adjust and admit after repeated trials and punches.
After closing the upper and lower dies of the medium pressure die of Anshangzi, transport it to the punching table, and the die handle is aligned with the die handle hole of the middle bed slider. Turn the Netflix by hand so that the lower end of the bone block touches the upper plane of the upper die holder. If the slider reaches the bottom dead center and has not touched the upper die, it is necessary to adjust the length of the connecting rod. If they touch, lock the mold handle, adjust the slider to the upper position, separate the upper and lower molds, and adjust the length of the connecting rod. , When the bone block reaches the dead center, the punch enters the die about 1mm, lock the connecting rod, and turn the flywheel one after another, so that the middle bed completes a stroke. If there is no abnormality, it means that the punching die has been installed and can be punched. .
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