Composition and characteristics of automobile hardware stamping parts
Release time:
2023-01-09
The manufacturing quality of automobile hardware stamping parts has a great influence on the quality of the whole vehicle, especially cars and various passenger cars. In the manufacture of stamping parts, whether it is for large stamping parts with complex spatial geometry, interior parts, welding machines, etc., or small stamping parts and interior parts that are easy to use, more professional inspection fixtures (referred to as inspection fixtures) are used as an important inspection method for product quality control between processes.
We know that a car is made up of thousands of stamping parts in the manufacturing process. Stamping parts are mainly composed of various metal stamping parts, precision hardware accessories, electronic components, etc.
The manufacturing quality of automobile hardware stamping parts has a great influence on the quality of the whole vehicle, especially cars and various passenger cars. In the manufacture of stamping parts, whether it is for large stamping parts with complex spatial geometry, interior parts, welding machines, etc., or small stamping parts and interior parts that are easy to use, more professional inspection fixtures (referred to as inspection fixtures) are used as an important inspection method for product quality control between processes. Measuring tool detection has the advantages of fast, accurate, intuitive and convenient, especially suitable for mass production. After the mid-1980s, with the rapid development of the car and bus industry, the use of stamping parts inspection tools in China's automobile industry has been quite common.
Compared with metal processing parts, the detection of automotive hardware stamping parts has the following characteristics:
1, the shape of the workpiece is often complex, irregular, positioning, support, clamping difficult;
2. The rigidity of the workpiece is generally poor, and it is easy to deviate due to deformation during the detection process;
3. Except for a few small stamping parts, the dimensional datum is usually processed in the solid coordinate system. In addition to the distance dimensions of many characteristic parts of the workpiece (such as holes, flanges, etc.) compared with the adjacent coordinate lines of the workpiece coordinate system, as shown in the figure, most of the appearance contours (especially free-form surfaces) do not give dimensional values except for the annotations given above. At present, the coordinate grid labeling method, which was not widely used until the 1980 s, has gradually been replaced by CAD data. The CAD data of stamping parts, welding parts and even car bodies provided by the design department can be used as the basis for manufacturing molds, welding tools and inspection tools. The origin of the coordinates is at the midpoint of the front axle, and the grid lines parallel to the X, Y, and Z axes pass through the body at an interval of 100mm to define all points on the body. By means of these network lines, the position of the body part can be determined. Location. Of course, according to this, the coordinate grid dimensions used earlier can also be tabulated.
Stamping is equipped with a coagulation press in addition to the thick plate forming with a hydraulic press. Taking the present world high-speed multi-station coagulation press as the focus, setting up equipment configuration uncoiling, finished product collection, escort and other coagulation, as well as mold library and quick mold change placement, and using computer French tube bundle, can form a passive stamping production line with high production rate. Under the condition of producing hundreds of 10. of automobile hardware stamping parts every minute, the stamping and production processes are completed in a short period of time, and personal, equipment and quality incidents often occur.
I believe that with the continuous growth of many hardware processing companies, the production scale of automobile hardware stamping parts and various hardware processing components will certainly be guaranteed.
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