Detailed punching steps for hydraulic presses

Hydraulic press the details of the punching process hydraulic busbar bender, a part of the hydraulic press punching process, the main punch is the corresponding parts, punch precision determines the accuracy of the workpiece, so we die in the process must pay attention to some problems, in order to avoid damage to the workpiece Manufacturing, where the four common problems of punching die processing, the standard network share the reasons for these problems. 1, the mold is neutral The core molds in use are prone to occur in each side of the worn position is different, and in some places there are scratches, the greater the wear and tear faster, hydraulic punch which is particularly evident in the narrow rectangular mold. The main reason for this problem: (1) or the processing of precision machine tool turret design is mainly due to the installation of the wheel up and down the mold is not good for neutrality. (2) mold design and processing accuracy can not meet the requirements. (3) mold hydraulic press guide sleeve accuracy is not enough. (4) mold gap selection is not appropriate. (5) as a result of long-term use of tools or mold guide sleeve wear on the neutral bad. In order to prevent mold wear inconsistencies should be: (1) ordinary machine tool mandrel turret adjustment for the neutral inspection and installation. Guide sleeve (2) timely replacement of mold and the appropriate punch and die gap.

Tilt Punch (3) the entire mold. (4) to strengthen the sense of responsibility, the operator found in time to find the cause, to avoid causing greater losses. 2, hydraulic punch wear too fast Main reasons: (1) mode gap is small, the general recommended mold total gap is the material thickness of 20% to 25%. (2) punch and die on the neutral is not good, including the mold base and mold positioning accuracy and other components and turrets due to poor mold to the neutral bad. Punch factory (3) convex mold temperature is too high, mainly due to the same mold for a long time continuous punch press hydraulic overheating. (4) mold grinding method properly, leading to die annealing, wear. Step 5. Local unilateral cutting, such as impact, angle of attack or shear side force can hit side, side clearance is reduced, leading to serious mold wear, if the machine mold installation accuracy is not high, the hydraulic punch will seriously lead to a lower die, punching hydraulic Punch and die damage. 3, the mold material Mold and material will lead to waste, rebound, its related factors: (1) mold sharp knife, round edge, the greater the rebound, the more likely to cause waste. (2) the hydraulic punch mold modulus hole punching machine, each station’s machine tool modulus is positive, mold modulus is small, likely to cause waste recycling. (3) the gap between the mold is reasonable, if the mold gap properly, easily lead to waste recycling. (4) whether the surface of the plate has more oil. (5) spring fatigue damage. Method to prevent mold material: (1) Use a dedicated pickup to die. (2) molds often maintain sharp grinding and demagnetization CNC Busbar Punching Machine. (3) increase the mold gap. (4) The hydraulic press is based on a spiral blade die, not a flat blade die. (5) mold installation back to the feeder. 6. Reasonably increase the modulus of the mold. All landowners check the mold spring or the fatigue strength of the discharge.

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