What are the methods to adjust the internal gap of the automobile stamping die?

2023-08-15 16:40:03

Mold assembly is a job with relatively high technical requirements. It requires experienced operators to install according to technical specifications. It is often necessary to repeatedly disassemble, turn over, test, adjust, and open and close mold parts, which is labor-intensive. Especially those progressive dies with complex structures and large stamping dies require operators to debug for a long time. In order to improve the degree of mechanization of mold assembly, assembly accuracy, and reduce manual assembly procedures. Mold assembly machines have been widely used abroad.

The mold equipping machine is actually a working platform for assembling various parts of the mold, which is composed of a transmission mechanism, an upper table, a working table, and a bed. When assembling a large stamping die, first fix the mold base on the working table to facilitate the assembly of various parts of the mold. The slider on the upper table can be positioned according to the size of the upper mold base, and the upper mold base can be easily fixed by using the pressure plate and screws. fixed in position.

The upper platen designed by the mold assembly machine can be turned 360 degrees arbitrarily, and can be lifted up and down through the four guide columns connected with the workbench and the bed, so as to facilitate the adjustment of the upper and lower molds, mold clamping and adjustment of the gap between the concave and convex molds, and solve the problem of manual assembly. Various problems in adjusting the mold gap, and the mold assembly machine is equipped with a trial punching function, which can quickly find and solve problems during the assembly process. The mold assembly machine can also be equipped with a drilling function, so that the pin holes can be drilled immediately after the mold trial punching is OK, and there is no need to go to the drilling machine for drilling operations, which improves production efficiency.

When assembling the mold of automobile stamping parts, it is necessary to ensure a certain gap between the concave and convex dies, and the gap needs to be uniform, so as to prolong the service life of the mold and ensure the quality of the stamping parts. Here are some methods to ensure that the gap between the concave and convex molds is uniform.

1. Direct measurement, using measuring tools to directly measure the gap between the concave and convex dies. Due to the complex structure between the concave and convex dies, the measuring tool can only be used for stamping dies with a gap of more than 0.02mm on one side. If the gap is too small, it will be difficult Measurement.

2. For gasket reference measurement, insert paper or metal sheets with uniform thickness in the gap between the mating parts of the concave and convex dies. Use the thickness of the gasket as a reference standard to ensure that the matching gap between the concave and convex molds is even.

3. Light transmission method measurement, using light to illuminate the fit gap between the concave and convex molds, and judging whether the gap between the concave and convex molds is uniform through the size of the light gap.

4. Apply a layer of paint on the convex die, the thickness of which is the fit gap between the concave and convex dies, and then insert the concave die. This method is simple and practical, and it is more suitable for stamping dies that cannot be adjusted with gaskets.

5. Copper plating method, plate a layer of copper on the working end of the punch, the thickness is the matching gap between the concave and convex molds, and then insert the concave mold. This type of method is similar to the coating method. During the use of the stamping die, the copper layer can automatically fall off.