高精度薄板连续冲压模具

Abstract

本实用新型公开了高精度薄板连续冲压模具，涉及连续冲压模具相关领域，为解决现有技术中的连续冲压薄板形成有压折的成品时，模切刀头向下的作用力直接作用于薄板，薄板切割轮廓位置会略向内变形，压折位置的切割位置变形幅度更大的问题。所述上冲压模芯下端外侧安装有模切上模组，所述模切上模组包括上压折限位件，所述下冲压模芯上端面开设有模切下槽，模切下槽与模切上模组上下对应，所述模切下槽内部下端固定有下固定板，所述下固定板下端安装有扁平液压缸，所述下固定板上端沿扁平液压缸的输出轴端连接有支撑下模组，所述支撑下模组包括下横板，所述下横板上端固定有下压折限位件，下压折限位件与上压折限位件对应。

Claims

1. A high-precision thin-plate continuous stamping die, comprising a lower stamping die base (9), a lower stamping die core (10) centrally mounted on the upper end of the lower stamping die base (9), limit posts (13) provided at the four corners of the lower stamping die core (10) on the upper end of the lower stamping die base (9), an upper stamping die base (1) slidably fitted to the limit posts (13), and an upper stamping die core (2) centrally mounted on the lower end of the upper stamping die base (1); characterized in that: The upper stamping die core (2) is equipped with a die-cutting upper die assembly (6) on the outer side of its lower end. The die-cutting upper die assembly (6) includes an upper pressure folding limiter (8). The upper end face of the lower stamping die core (10) is provided with a die-cutting lower groove (19). The die-cutting lower groove (19) corresponds to the die-cutting upper die assembly (6) vertically. The lower end of the die-cutting lower groove (19) is fixed with a lower fixing plate (20). The lower end of the lower fixing plate (20) is equipped with a flat hydraulic cylinder (22). The upper end of the lower fixing plate (20) is connected to a supporting lower die assembly (23) along the output shaft end of the flat hydraulic cylinder (22). The supporting lower die assembly (23) slides within the die-cutting lower groove (19). The supporting lower die assembly (23) includes a lower horizontal plate (24). The upper end of the lower horizontal plate (24) is fixed with a lower pressure folding limiter (26). The lower pressure folding limiter (26) corresponds to the upper pressure folding limiter (8).

2. The high-precision thin plate continuous punching die according to claim 1, characterized by: The upper die-cutting module (6) is provided with a die-cutting head (7) outside the upper pressing and folding limiting member (8), and the upper end of the lower horizontal plate (24) forms a die-cutting groove (27) outside the lower pressing and folding limiting member (26). The die-cutting head (7) and the die-cutting groove (27) correspond vertically.

3. The high-precision thin plate continuous punching die according to claim 1, characterized by: The upper inner side of the lower fixed plate (20) is fixed with ejector columns (21) at both the front and rear ends. The lower support module (23) has ejector slots at positions corresponding to the ejector columns (21). The lower stamping die core (10) is provided with a stamping part guide groove (29) along the outer side of the lower support module (23). The highest point of the stamping part guide groove (29) is located at the lower end of the upper surface when the lower support module (23) moves to the lowest point. The lower stamping die core (10) is provided with a stamping part discharge guide slide (30) along the output end of the stamping part guide groove (29). The stamping part discharge guide slide (30) is smoothly connected to the end face of the stamping part guide groove (29).

4. The high-precision sheet metal continuous punching die according to claim 1, characterized in that: The lower horizontal plate (24) is integrally connected to the front and rear ends of the limiting slider (25). The front and rear ends of the die-cut groove (19) are provided with limiting grooves (28) at the corresponding positions of the limiting slider (25). The limiting slider (25) slides along the limiting groove (28).

5. The high-precision sheet metal progressive die of claim 1, wherein: The lower stamping die core (10) has an L-shaped fixing strip (11) welded and fixed at the front and rear ends of the upper end, and a thin plate moving limiting groove (12) is formed between the lower stamping die core (10) and the L-shaped fixing strip (11).

6. The high-precision sheet metal progressive die of claim 1, wherein: The upper stamping die core (2) is provided with a punching upper die unit (5) on one side of the die-cutting upper die unit (6), and the lower stamping die core (10) is provided with a punching lower groove (16) on one side of the die-cutting lower groove (19). The punching upper die unit (5) and the punching lower groove (16) are vertically corresponding. The lower end of the punching lower groove (16) in the lower stamping die core (10) forms a punching waste discharge groove (17). The front end of the lower stamping die core (10) is provided with a punching waste discharge guide slide (18) along the output end of the punching waste discharge groove (17). The punching waste discharge guide slide (18) is smoothly connected to the end face of the punching waste discharge groove (17).

7. The high-precision sheet metal progressive die of claim 6, wherein: The upper stamping die core (2) is provided with a pressing and bending forming upper die (4) along the upper punching upper die (5) side, and a stamping upper die (3) is provided along the upper punching die core (2) along the upper punching and bending forming upper die (4) side. The lower stamping die core (10) is provided with a pressing and bending forming lower groove (15) along the upper punching lower groove (16) side. The pressing and bending forming lower groove (15) corresponds vertically to the pressing and bending forming upper die (4). The lower stamping die core (10) is provided with a stamping lower groove (14) along the upper punching and bending forming lower groove (15) side. The stamping lower groove (14) corresponds vertically to the stamping upper die (3).

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