The installation and adjustment of tungsten punch die must be very careful. Because tungsten steel punching dies, especially large and medium-sized tungsten steel punching dies, are not only expensive, but also difficult to move with heavy weight and trace amounts. For the tungsten punch die of the infinite position device, a plank should be added between the upper and lower dies. After the punching table is cleaned, the mold to be tested in the closed state is placed on the appropriate position on the table.
The stroke of the press slider selected according to the process documents and the design requirements of the tungsten punch die is adjusted to the bottom dead center before the die is moved onto the stage and is 10-15mm greater than the closed height of the die. The slider connecting rod is adjusted and the die is moved to ensure the die. The shank is aligned with the mold shank hole and reaches the appropriate mold height.
Generally, the blanking die first fixes the lower die (not tightened) and then fixes the upper die (tighten). T-bolts of the pressure plate should be tightened with a suitable torque wrench (lower die) to ensure that the same bolts have consistent and ideal pre-clamping force. It can effectively prevent the pre-tightening force caused by physical strength, gender, and feel errors caused by manual tightening of the thread from being too large or too small, and the same thread pre-tightening force is unequal, which will cause the upper and lower molds to shift during the stamping process, the gap changes, and the cutting edge A failure such as the port has occurred.
Fully lubricate the mold and prepare the materials for normal production before the mold test. Start the punching mold 3 to 5 times in an empty stroke to confirm that the mold is operating normally and try punching again. Adjust and control the depth of the punch into the die, check and verify the performance and operational flexibility of mechanisms and devices such as die guiding, feeding, pushing and unloading, side pressure and elastic pressure, and then make appropriate adjustments to achieve the best technical state. For large, medium and small dies, 3, 5, and 10 pieces were tested for the initial inspection of production suspension, and 10, 15, and 30 pieces were re-inspected after being qualified. After marking inspection, punching surface and burr inspection, all dimensions and shape and position accuracy meet the requirements of the drawings, before they can be delivered to production.
More details,pls contact Toby, E-mail:sales-manager302 at wococarbide.com.
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