Concentric stamping die
A technology of stamping dies and dies, applied in the field of dies for stamping concentric holes, to achieve the effects of simple structure, convenient operation and improved product quality
Active Publication Date: 2013-06-12
SUZHOU FEIYU PRECISION TECH
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Problems solved by technology
[0002] For some workpieces that require concentric holes, such as turning holes or punching holes on both end faces of the workpiece, the axes of the holes are required to be on a straight line. When stamping such workpieces, the two holes are usually punched separately, but Due to the displacement of the workpiece and the change of stamping conditions, it is difficult to avoid the deviation of concentricity between the two holes
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[0015] In order to clarify the technical scheme and technical purpose of the present invention, the present invention will be further introduced below in conjunction with the accompanying drawings and specific implementation methods.
[0016] As shown in the figure, a concentric stamping die includes an upper mold base, a lower mold base, and a punch 1 arranged on the upper mold base, and also includes an upper pressing plate 2 for pressing materials, a punching die and a lower stripper plate 7 , the hole turning die includes an upper turning hole die 3 and a lower turning hole die 5, the lower turning hole die 5 is arranged directly below the upper turning hole die 3, and the die opening of the upper turning hole die 3 The axis of the die mouth of the axis and the lower turning hole die 5 is on the same axis, as figure 1 shown.
[0017] After the position of the material is set on the punching die, the upper pressing plate 2 is pressed on the punching material. The followin...
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The invention discloses a concentric stamping die. The concentric stamping die comprises an upper die base, a lower die base and a punch, and is characterized by also comprising an upper pressing plate, a hole flanging female die and a lower stripping plate, wherein the hole flanging female die comprises an upper hole flanging female die and a lower hole flanging female die; the lower hole flanging female die is arranged under the upper hole flanging female die; a female die orifice circle center of the upper hole flanging female die and a female die orifice circle center of the lower hole flanging female die are positioned on the same axial line; the upper hole flanging female die is arranged between the upper pressing plate and the lower stripping plate; the lower hole flanging female die is arranged on the lower die base and is positioned below the lower stripping plate; a hole flanging inner stripping block is arranged on the hole flanging female die; the punch comprises an upper segment punching rod, a lower segment punching rod and a top end cutter bit; the diameter of the lower segment punching rod is less than that of the upper segment punching rod; and the punch has a trapezoid column shape. In the concentric stamping die, the punch is used for flanging two holes, so that the hole flanging concentricity is ensured; and the concentric stamping die has the advantages ofsimple structure and convenience of use, is easy to operate, and can effectively ensure the concentric accuracy of a part with a concentric hole.
Description
technical field [0001] The invention relates to a mold, in particular to a mold for punching concentric holes. Background technique [0002] For some workpieces that require concentric holes, such as turning holes or punching holes on both end faces of the workpiece, the axes of the holes are required to be on a straight line. When stamping such workpieces, the two holes are usually punched separately, but Due to the displacement of the workpiece and the change of stamping conditions, it is difficult to avoid the deviation of concentricity between the two holes. For example, the hole of the guide sleeve of the headrest of the car seat, etc., has a high requirement for concentricity in the production process. Contents of the invention [0003] In order to solve the above technical problems and ensure the positional accuracy of the concentric holes of the workpiece, the invention provides a concentric stamping die, comprising an upper die base, a lower die base and a punch ...
Claims
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IPC IPC(8): B21D28/14B21D45/06
Inventor 杜罗生
Owner SUZHOU FEIYU PRECISION TECH