Lower die of stamping equipment

Abstract

The utility model discloses a lower die of stamping equipment. The lower die can improve the stamping yield of long-strip-shaped products. The material belt moves on the upper surface of the lower die in a stepping mode, and the width of one product area is stepped each time; the lower die is provided with a first punching lower tool apron, a second punching lower tool apron, a third punching lower tool apron and a cutting tool apron; at least two first punching lower tool aprons are arranged at the position, corresponding to one product area, of the lower die in the length direction of the product at intervals, and at least one second punching lower tool apron and two third punching lower tool aprons located on the outermost side are arranged at the position, corresponding to the subsequent product area, of the lower die in the length direction of the product at intervals. The second punching lower tool aprons are located between the two adjacent first punching lower tool aprons in the moving direction of the material belt; the outer end part of the third punching lower tool apron is matched with the outline of the end part of the product; and cutting tool aprons are arranged at the two ends of the final product area.

Description

Technical Field

[0001] This utility model belongs to the field of stamping equipment technology, and specifically refers to a lower die of a stamping equipment. Background Technology

[0002] Stamping equipment is a type of mechanical equipment used for forming metal or non-metal materials, and is widely used in manufacturing and industrial production. It uses high pressure to cause plastic deformation or separation of materials, thereby manufacturing parts of the required shape and size.

[0003] In industrial production, stamping equipment is commonly used to manufacture various precision metal parts, such as automotive components, electronic product housings, and household appliance parts. These machines are indispensable tools in industrial production due to their high efficiency, precision, and repeatability. They not only improve production efficiency but also ensure product consistency and quality, meeting the demands of large-scale production.

[0004] However, due to the high pressure during stamping and the tension between the material and the die surface, when stamping long strip products, especially when the final product is cut off from the strip, the final product is prone to bending and deformation, resulting in a low yield. Utility Model Content

[0005] The main purpose of this utility model is to provide a lower die for a stamping equipment, which solves the problems existing in the prior art. It can work with the upper die of the stamping equipment to improve the yield rate when stamping long strip products and avoid product deformation.

[0006] To achieve the above objectives, the solution of this utility model is:

[0007] A lower die of a stamping machine, wherein a strip moves in a stepping manner on the upper surface of the lower die, defining the edge contour corresponding to the product before stamping as the product area, and the strip moves the width of one product area at a time; the lower die is provided with a first punching lower die holder, a second punching lower die holder, a third punching lower die holder, and a cutting die holder; at least two first punching lower die holders are spaced apart along the length direction of the product at positions corresponding to one product area on the lower die, and at least one second punching lower die holder and two outermost third punching lower die holders are spaced apart along the length direction of the product at positions corresponding to subsequent product areas, the second punching lower die holders being located between two adjacent first punching lower die holders in the direction of strip movement; the outer end of the third punching lower die holder matches the end contour of the product; and cutting die holders are provided at both ends of the last product area.

[0008] The outer ends of the third punching tool holder are respectively provided with a left tool holder and a right tool holder, which correspond to the right and left sides of the product end.

[0009] Preferably, the number of the first punching lower blade holders is designed to be three, and the number of the second punching lower blade holders is designed to be two; the product areas corresponding to the first punching upper blade and the second punching upper blade are not adjacent.

[0010] The ends of the first punching lower cutter holder and the second punching lower cutter holder overlap in the direction of the material strip's movement, and the width of the overlapping area is set to 5mm~1cm.

[0011] The lower die is provided with a number of grooving cutters and punching cutters at the positions corresponding to the first two product areas. The grooving cutters and punching cutters are arranged in pairs in the direction of material strip movement.

[0012] Preferably, the product areas corresponding to the first punching lower cutter holder, the second punching lower cutter holder, and the third punching lower cutter holder are located after all product areas corresponding to all slotting lower cutter edges / punching lower cutter edges, and are separated by at least one empty product area.

[0013] The lower die is provided with a folding lower die holder in the product area after the second punching lower die holder / third punching lower die holder.

[0014] The lower die is also provided with a grooving lower cutter holder, which overlaps with the cutting blade in the direction of the material strip's movement.

[0015] After adopting the above technical solution, the present invention has the following technical effects:

[0016] This invention utilizes the cooperation of the upper cutting edge and the lower cutting edge of each punch in different product areas to remove excess material between adjacent product areas in batches. This avoids the stress on the edge of the product area being applied to the edge of the product area all at once. Batch punching can disperse stress and ensure that the edge of the product area will not bend or deform after punching, thereby improving the yield when punching long strip products. Attached Figure Description

[0017] Figure 1 This is a side view of the stamping equipment with mold opening according to a specific embodiment of the present utility model (the arrows indicate the material direction).

[0018] Figure 2 This is a closed-mold side view of a stamping equipment according to a specific embodiment of the present utility model.

[0019] Figure 3 This is a schematic diagram of the upper mold structure of a specific embodiment of the present utility model.

[0020] Figure 4 This is a schematic diagram of the lower mold structure of a specific embodiment of the present utility model.

[0021] Figure 5 This is a schematic diagram of the strip stamping process in a specific embodiment of the present invention.

[0022] Explanation of icon numbers:

[0023] 100 - Upper die; 101 - First punch upper cutting edge; 102 - Second punch upper cutting edge; 103 - Third punch upper cutting edge; 1031 - Left punch cutting edge; 1032 - Right punch cutting edge; 104 - Cutting edge; 1041 - Left cutting edge; 1042 - Right cutting edge; 105 - Fourth punch upper cutting edge; 106 - Positioning pin; 107 - Slotting upper die holder; 108 - Punching upper die holder; 109 - Folding upper die holder; 110 - Slotting upper cutting edge;

[0024] 200-Lower die; 201-First punch lower die holder; 202-Second punch lower die holder; 203-Third punch lower die holder; 2031-Left die holder; 2032-Right die holder; 204-Cutting die holder; 205-Fourth punch lower die holder; 206-Positioning slot; 207-Grooving lower cutting edge; 208-Punching lower cutting edge; 209-Folding lower die holder; 210-Grooving lower die holder;

[0025] 300 - Material strip; 301 - Product area; 302 - Connecting part; 303, 304 - Excess material; 305 - Positioning hole; 306 - Screw hole; 307 - Groove; 308 - Folded edge. Detailed Implementation

[0026] To further explain the technical solution of this utility model, the following detailed description is provided through specific embodiments.

[0027] refer to Figure 1-5 As shown, this utility model discloses a stamping device, including an upper die 100 and a lower die 200 that can perform relative opening and closing movements to realize the stamping process;

[0028] The strip 300 moves in a stepping manner on the upper surface of the lower die 200. The edge contour corresponding to the product when it is not stamped is defined as the product area 301. The strip 300 moves one width of the product area each time.

[0029] The upper die 100 is provided with a first punching upper blade 101, a second punching upper blade 102, a third punching upper blade 103, and a cutting blade 104. At least two first punching upper blades 101 are spaced apart along the length of the product at positions corresponding to a product area on the upper die 100, and at least one second punching upper blade 102 and two outermost third punching upper blades 103 are spaced apart along the length of the product at positions corresponding to subsequent product areas. The second punching upper blades 102 are located between two adjacent first punching upper blades 101 in the moving direction of the strip 300. The first punching upper blades 101 and the second punching upper blades 102 are both rectangular blades. The outer end of the third punching upper blade 103 matches the end contour of the product and allows the product area to retain a connecting portion 302 for connection with the strip 300. Cutting blades 104 are provided at both ends of the last product area.

[0030] The lower die 200 is provided with a first punch lower cutter holder 201, a second punch lower cutter holder 202, a third punch lower cutter holder 203, and a cutting cutter holder 204, which are respectively opposite to the first punch upper cutter 101, the second punch upper cutter 102, the third punch upper cutter 103, and the cutting cutter 104.

[0031] Through the above solution, this utility model uses the cooperation of the upper cutting edge of each punch and the lower cutting edge of each punch in different product areas to remove excess material 303 and 304 between adjacent product areas in batches. This avoids the stress of the stamping product area edge acting on the edge of the product area all at once. The batch stamping can disperse the stress and ensure that the edge of the product area will not be bent or deformed after stamping, thereby improving the yield when stamping long strip products.

[0032] The following are specific embodiments of the present invention.

[0033] The upper die 100 is provided with a fourth punch upper blade 105 at each end of the first product area, and a positioning post 106 at each end of each subsequent product area. The lower die 200 is provided with a fourth punch lower blade holder 205 and a positioning groove 206, which are respectively opposite to the fourth punch upper blade 105 and the positioning post 106. The fourth punch upper blade 105 and the fourth punch lower blade holder 205 cooperate to punch positioning holes 305 at each end of the product area of ​​the strip 300. Thus, through the cooperation of the positioning post 106, the positioning groove 206 and the positioning hole 305, the strip 300 is positioned after each step, ensuring that it moves into place and does not deviate.

[0034] refer to Figure 3 As shown, in some embodiments of the upper mold 100,

[0035] The outer ends of the aforementioned third punch upper blade 103 are respectively provided with a left punching blade 1031 and a right punching blade 1032, which correspond to the right and left sides of the product end, respectively. That is, when the third punch upper blade 103 is punched, the opposite sides of the ends of adjacent product areas are punched respectively, and a connection portion 302 for connecting the product area and the material strip 300 is reserved.

[0036] Furthermore, the aforementioned cutting edge 104 includes a left cutting edge 1041 and a right cutting edge 1042, respectively corresponding to the left punching edge 1031 and the right punching edge 1032. Thus, the two cutting edges can cooperate with the lower die 200 to cut the connecting part 302 from the product and the material strip 300, respectively.

[0037] In this embodiment, the number of cutting edges 101 on the first punch is designed to be three, and the number of cutting edges 102 on the second punch is designed to be two; the product areas corresponding to the cutting edges 101 and 102 on the first punch are not adjacent, ensuring that the edges of the product areas are not continuously punched to release stress.

[0038] The ends of the first punch upper blade 101 and the second punch upper blade 102 overlap in the moving direction of the strip 300. The width of the overlapping area is between 5mm and 1cm, which ensures that it can cooperate with the lower die 200 to completely punch away the excess material between adjacent product areas.

[0039] The upper die 100 is provided with several slotting upper knife holders 107 and punching upper knife holders 108 at the positions corresponding to the first two product areas. The slotting upper knife holders 107 and punching upper knife holders 108 are arranged in pairs in the moving direction of the strip 300 to cooperate with the lower die 200 to stamp and form a groove 307 with screw holes 306 in the product area of ​​the strip 300. The groove 307 is formed first and then the screw holes 306 are formed.

[0040] Furthermore, the product areas corresponding to the first punch upper cutting edge 101, the second punch upper cutting edge 102, and the third punch upper cutting edge 103 are located after all product areas corresponding to all slot upper cutting edge holders 107 / punch upper cutting edge holders 108, and are separated by at least one empty product area.

[0041] The upper die 100 is provided with a folding upper die base 109 in the product area after the cutting edge 102 of the second punch and the cutting edge 103 of the third punch, which is used to cooperate with the lower die 200 to fold the two sides of the product to form a 90° folding edge 308.

[0042] The upper die 100 is also provided with a punching upper blade 110. The punching upper blade 110 and the cutting blade 104 overlap in the moving direction of the strip 300. This is used to cooperate with the lower die 200 to punch a groove-shaped structure at the end of the corresponding product area 301 before the cutting process, so that the strip 300 and the product are separated in a staggered manner, ensuring that the subsequent cutting is neat.

[0043] refer to Figure 4 As shown, in some embodiments of the lower mold 200,

[0044] The outer ends of the third punching tool holder 203 are respectively provided with a left tool holder 2031 and a right tool holder 2032, with the left tool holder 2031 and the right tool holder 2032 corresponding to the right and left sides of the product end.

[0045] In this embodiment, the number of the first punching lower blade holder 201 is designed to be three, and the number of the second punching lower blade holder 202 is designed to be two; the product areas corresponding to the first punching upper blade 101 and the second punching upper blade 102 are not adjacent, ensuring that the edge of the product area is not continuously punched to release stress.

[0046] The ends of the first punching lower cutter holder 201 and the second punching lower cutter holder 202 overlap in the moving direction of the strip 300. The width of the overlapping area is between 5mm and 1cm, ensuring that it can completely punch away the excess material between adjacent product areas when it cooperates with the upper die 100.

[0047] The lower die 200 is provided with several grooving blades 207 and punching blades 208 at the positions corresponding to the first two product areas. The grooving blades 207 and punching blades 208 are arranged in pairs in the moving direction of the strip 300 to cooperate with the upper die 100 to stamp and form grooves 307 with screw holes 306 in the product area of ​​the strip 300. The grooves 307 are formed first, and then the screw holes 306 are formed.

[0048] Furthermore, the product areas corresponding to the first punching lower cutter holder 201, the second punching lower cutter holder 202, and the third punching lower cutter holder 203 are located after all product areas corresponding to all slotting lower cutter edges 207 / punching lower cutter edges 208, and are separated by at least one empty product area.

[0049] The lower die 200 is provided with a folding lower die 209 in the product area after the second punching lower die holder 202 / third punching lower die holder 203, which is used to cooperate with the upper die 100 to fold the two sides of the product to form a 90° folding edge 308.

[0050] The lower die 200 is also provided with a grooving lower cutter holder 210. The grooving lower cutter holder 210 overlaps with the cutting blade 104 in the moving direction of the strip 300. It is used to cooperate with the upper die 100 to punch a groove-shaped structure at the end of the corresponding product area 301 before the cutting process, so that the strip 300 and the product are separated in a staggered manner, ensuring that the subsequent cutting is neat.

[0051] The above embodiments and figures are not intended to limit the product form and style of this utility model. Any appropriate changes or modifications made by those skilled in the art should be considered as not departing from the patent scope of this utility model.

Claims

1. A lower die for a stamping machine, characterized in that: The strip moves in a stepping manner on the upper surface of the lower die, defining the edge contour corresponding to the product when it is not stamped as the product area, and the strip moves the width of one product area each time. The lower die is provided with a first punching lower die holder, a second punching lower die holder, a third punching lower die holder, and a cutting die holder; at least two first punching lower die holders are spaced apart along the length of the product at positions corresponding to a product area on the lower die, and at least one second punching lower die holder and two outermost third punching lower die holders are spaced apart along the length of the product at positions corresponding to subsequent product areas, with the second punching lower die holders located between two adjacent first punching lower die holders in the direction of material strip movement; the outer end of the third punching lower die holder matches the end contour of the product; and cutting die holders are provided at both ends of the last product area.

2. The lower die of the stamping equipment as described in claim 1, characterized in that: The outer ends of the third punching tool holder are respectively provided with a left tool holder and a right tool holder, which correspond to the right and left sides of the product end.

3. The lower die of the stamping equipment as described in claim 2, characterized in that: The first punching tool holder is designed to have three parts, and the second punching tool holder is designed to have two parts.

4. The lower die of the stamping equipment as described in claim 1, characterized in that: The ends of the first punching lower cutter holder and the second punching lower cutter holder overlap in the direction of the material strip's movement, and the width of the overlapping area is set to 5mm~1cm.

5. The lower die of the stamping equipment as described in claim 1, characterized in that: The lower die is provided with a number of grooving cutters and punching cutters at the positions corresponding to the first two product areas. The grooving cutters and punching cutters are arranged in pairs in the direction of material strip movement.

6. The lower die of the stamping equipment as described in claim 5, characterized in that: The product areas corresponding to the first punching lower cutter holder, the second punching lower cutter holder, and the third punching lower cutter holder are located after all product areas corresponding to all slotting lower cutter edges / punching lower cutter edges, and are separated by at least one empty product area.

7. The lower die of the stamping equipment as described in claim 1, characterized in that: The lower die is provided with a folding lower die holder in the product area after the second punching lower die holder / third punching lower die holder.

8. The lower die of the stamping equipment as described in claim 1, characterized in that: The lower die is also provided with a grooving cutter holder, which overlaps with the cutting edge of the stamping equipment in the direction of the material strip's movement.

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