A Progressive Die for Eliminating Wavy Deformation in Stamping Metal Sheets
A metal sheet and wave technology, which is applied in the field of sheet metal stamping and processing equipment to achieve the effects of easy processing, easy realization and reduction of punch wear
Active Publication Date: 2016-01-20
ZHONGSHAN FUSHENG ELECTROMECHANICAL
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Problems solved by technology
[0011] The purpose of the present invention is to overcome the deficiencies of the prior art, to provide a progressive die that eliminates the wave deformation caused by stamping metal sheets, and to increase the cross-sectional circle of the punch of the progressive die while ensuring the product quality and punch strength. The gap between the arc chamfering section and the arc chamfering section of the cavity cross section can effectively eliminate the wave deformation caused by the progressive die stamping metal sheet
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[0025] A progressive die that eliminates the wavy deformation of stamping metal sheets, comprising a lower die base 10 and an upper die base 20, the upper die base 20 is provided with an outer guide post 60, and the lower die base 10 is provided with The outer guide hole 105 for the sliding guide of the outer guide column 60, the upper side of the lower mold base 10 is provided with a die back plate 30, and the lower side of the upper mold base 20 is provided with a punch back plate 40, the lower side of the punch back plate 40 is provided with a punch holding plate 50, the upper part of the die back plate 30 is provided with a die 2, the punch holding plate 50 is provided with a punch 1, the The maximum gap Dmax between the punch cross-section arc chamfering section 101 of the punch 1 and the die cavity cross-section arc chamfering section 201 of the die 2 is set larger than the punch cross-section straight section 102 The gap D between the flat section 202 and the cavity cro...
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The invention discloses a progressive die capable of eliminating wave deformation generated in the stamping process of sheet metal. The progressive die comprises a lower die base and an upper die base. The upper die base is provided with an outer guiding post. The lower die base is provided with an outer guiding hole, and the outer guiding post can slide in the outer guiding hole for guiding. The upper side of the lower die base is provided with a concave die back plate. The lower side of the upper die base is provided with a punch back plate. The lower side of the punch back plate is provided with a punch holding plate. A concave die is arranged on the upper portion of the concave die back plate. A punch is arranged on the punch holding plate. According to the technical scheme, the progressive die is characterized in that the maximum clearance Dmax between a circular arc chamfer segment of the cross section of the punch and a circular arc chamfer segment of the cross section of a concave die cavity of the concave die is larger than the clearance D between a straight segment of the cross section of the punch and a straight segment of the cross section of the concave die cavity.
Description
【Technical field】 [0001] The invention relates to a metal sheet stamping processing equipment, more specifically to a progressive die for eliminating wave deformation caused by stamping the metal sheet. 【Background technique】 [0002] With the increasingly fierce market competition, various manufacturers have developed continuous stamping products of large and widened metal sheets to improve the production efficiency of the products and reduce the manufacturing costs of the products. [0003] Continuous stamping products of large and widened metal sheets are prone to wave deformation problems during the stamping production process, which will seriously affect the smooth progress of subsequent production processes. The wave problem is a technical problem plaguing the industry. [0004] Analysis of the cause of the waves, the first period of time after the new mold or the notch of the grinding die, the notch is in a relatively sharp state, and the stamped product will not pro...
Claims
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IPC IPC(8): B21D37/10
Inventor 李勇赵旦胜刘榕夏世新韩永胜刘晓锋邵玉花
Owner ZHONGSHAN FUSHENG ELECTROMECHANICAL