Drawing die with punching mechanism

Abstract

The invention discloses a drawing die with a punching mechanism. The drawing die comprises an upper die and a blank holder fixed on an upper die base and a lower die fixed on a lower die base, wherein the longitudinal section of the blank holder is U-shaped; the drawing die further comprises the punching mechanism which comprises a driving component arranged on the upper die and a punching component arranged in the blank holder; the driving component comprises a driving block which is rotatably connected onto the upper die; the punching component comprises a sliding block, a guide block and a punch; the sliding block is in sliding connection with a top surface in the blank holder; the guide block is in vertically sliding connection with the blank holder; the punch is arranged on the bottom of the guide block; and the lower die is provided with a punching concave die matched with the punch. According to the drawing die, a drawing technique and a punching technique are integrated in one working procedure; manufacture cost of a die and manufacture cost of a part are lowered, and production efficiency is improved; and meanwhile, punching is performed after the drawing technique is finished, and the part is moulded in place, so that the size and position of a hole are ensured, and cannot be changed by drawing of a material.

Description

technical field [0001] The invention relates to the field of stamping dies, in particular to a stretching die with a punching mechanism. Background technique [0002] Stamping is a forming processing method that applies external force to plates, strips, pipes and profiles by presses and molds to cause plastic deformation or separation to obtain workpieces (stamping parts) of required shape and size. [0003] Compared with castings and forgings, stamping parts have the characteristics of thinness, uniformity, lightness and strength. Moreover, stamping can produce workpieces with ribs, ribs, undulations or flanges that are difficult to manufacture by other methods. In addition, due to the use of precision molds for stamping, the precision of the workpiece can reach the micron level, and the repeatability is high and the specifications are consistent. [0004] Due to assembly and other component installation requirements, it is usually necessary to open holes on stamping part...

AI Technical Summary

Problems solved by technology

However, there is a technical difficulty in realizing punching in the drawing die: during the production process of the drawing die, the blank is deformed, so if the hole is punched at the same time as stretching, the hole will be deformed, and it is difficult to meet the assembly requirements

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