Square tube anti-deformation punching die

Abstract

The invention discloses a square tube anti-deformation punching die. The anti-deformation punching die comprises a punching seat, a supporting seat and a supporting bottom plate, the punching seat comprises a punching part provided with a plurality of through holes matched with punching male dies. One end of the punching part extends downwards to form a connecting part connected with the supporting bottom plate; the connecting part enables the punching part and the upper surface of the supporting bottom plate to form a space for accommodating the supporting seat; and the punching part is sleeved with a square tube. The top of the punching part is attached to the inner wall of the upper side of the square tube, and a containing space formed by the lower portion of the punching part and the square tube is matched with the supporting seat in shape. The supporting seat is movably arranged in the containing space. According to the square tube anti-deformation punching die, the punching seat of a special structure is matched with the supporting seat, the interior of the square tube is completely filled during punching, all-directional effective supporting is conducted, only the positions of the remaining through holes are matched with the punching male dies, punching is conveniently conducted, and various technical defects such as deformation and corner collapse of the other parts of the square tube are effectively avoided.

Description

technical field [0001] The invention relates to the technical field of material blanking processing, in particular to a square tube anti-deformation punching die. Background technique [0002] Thick-walled square tubes are widely used in industrial engineering. In order to facilitate installation and reduce weight, a number of round or rectangular holes or long holes are opened on the side wall of the square tube. In the traditional pipe punching die, especially when punching the square pipe, there is only the punching punch, and there is no related support in the tube core. There are serious technical defects such as bulging of the wall. If the support is simply added, new extrusion deformation at the bottom of the square tube will be caused when stamping again. [0003] At the same time, the punching of square tubes in the prior art generally adopts ordinary punching presses to punch holes one by one, so that not only the production efficiency is low, the labor intensity...

AI Technical Summary

Problems solved by technology

[0003] At the same time, the punching of square tubes in the prior art generally adopts ordinary punching presses to punch holes one by one, so that not only the production efficiency is low, the labor intensity of the workers is high, the production cost is high, and the product quality is unstable, especially the hole spacing is difficult to keep consistent, and it is impossible to directly complete the long process. One-time stamping of square tube

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