Punching-pressing composite mould
A technology of stamping die and die base, which is applied in the field of composite die structure, can solve the problems of inability to produce high-precision stamping parts, the accuracy cannot meet the requirements, and the efficiency is low, and the effect of simple structure is achieved.
Inactive Publication Date: 2007-07-25
LANZHOU UNIVERSITY OF TECHNOLOGY
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Problems solved by technology
[0005] Through analysis, scheme (1) has a simple mold structure, but requires 3 sets of molds, which is very inefficient and cannot produce high-precision stamping parts; scheme (2) has a slightly more complicated structure and requires 2 sets of molds, which improves efficiency and accuracy Still can't meet the requirements
These two solutions are far from meeting the requirements of modern production with high precision, low cost and high benefit
Method used
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[0013] As shown in Figure 1, the composite stamping die of the present invention includes two parts, a lower die and an upper die. The lower die consists of the lower die base 1, the positioning block 2 installed on the lower die base (1) through the positioning holes and screws 17 on the lower die base 1, and the punch installed on the center of the lower die base 1 through the positioning of the positioning block 2 The fixed plate 21, the bending punch 20 installed on the center of the lower mold base 1 through the punch fixing plate 21, the lower ejector 18 installed around the bending punch 20, the tow bar 19 and the guide rod directly installed on the lower mold base 1 The column 16 and the side sliding column 3 directly installed in the positioning block 2, the horizontal punch 22, the return spring 5, and the limit pin 4 are composed. The upper end surface A of the bending punch 20 is lower than the upper end surface B of the positioning block 2 by about 2- 3 blank thic...
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This complex press mould comprises upper and lower moulds. Wherein, the lower mould comprises base with arranged locating block, dead plate for convex mould on base center by block with bending convex mould of top end surface lower 2~3 blank thickness than the locating block 's, lower backing-out punch on edge of bending convex mould, towbar and guide pole both arranged directly on base, and sideslip pole, horizontal press head, reset spring and limiting pin all arranged in locating block; the upper mould comprises base with shank on base center by locating hole, swaging spring on shank, bending concave mould below base center with swaging block, wedge and guide sleeve both arranged on base side by bolt and locating plot; wherein, the upper is matched with lower mould by guide sleeve and guide pole.
Description
technical field [0001] The invention relates to a stamping die, in particular to a composite die structure of several stamping processes. Background technique [0002] At present, the basic stamping process for the forming of side arm with small hole bending is: blanking, bending, punching. There are two specific forming process schemes as follows: [0003] (1) Blanking, bending, punching single-process mold forming; [0004] (2) Blanking and punching are compounded first, and the bending single-process mold is formed; [0005] Through analysis, scheme (1) has a simple mold structure, but requires 3 sets of molds, which is very inefficient and cannot produce high-precision stamping parts; scheme (2) has a slightly more complicated structure and requires 2 sets of molds, which improves efficiency and accuracy Still can't meet the requirement. These two schemes are far from meeting the requirements of modern production with high precision, low cost and high benefit. Conte...
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IPC IPC(8): B21D37/10
Inventor 聂福荣
Owner LANZHOU UNIVERSITY OF TECHNOLOGY