A runner plate stamping forming die

Abstract

The utility model discloses a flow channel board stamping forming die, flow channel board stamping die includes upper die and lower die, the upper die includes upper die plate, and the board surface of upper die plate is fixed with upper forming plate, the lower die includes lower die plate and bottom plate, and the bottom plate is connected with the lower die plate through a plurality of support plates, and the forming area ring of upper forming plate is equipped with upper pressure ring edge, and the forming area of lower forming plate corresponds and is equipped with lower pressure ring edge, and upper pressure ring edge is equipped with stretch bead upper forming surface, and the corresponding stretch bead lower forming surface is equipped with on lower pressure ring edge, and the stretch bead upper forming surface and the stretch bead lower forming surface are set up with two stretch beads in stretch bead forming cavity that unfolds constitutes. Through above -mentioned mode, the utility model can improve the dimensional stability in the stamping process, reduces the design allowance, reduces raw material loss.

Description

Technical Field

[0001] This utility model relates to the field of stamping dies, and in particular to a flow channel plate stamping die. Background Technology

[0002] Runner plates are widely used in new energy vehicles to absorb waste heat generated during the operation of the coolant circulation system. Runner plates are generally produced by stamping. However, because runner plates are typically large and have a planar structure, the areas around them that are not stamped will experience tensile force in the direction of the stamping point during the stamping process. This causes the raw material around the stamping point to concentrate, forming wrinkles and affecting product quality. Therefore, drawbead structures are usually set on the mold during processing. However, existing drawbeads are generally single ribs, which have insufficient tensile force during actual stamping, making it easy to lose material holding capacity. Furthermore, there will be springback issues after stamping, resulting in poor overall dimensional stability. A large dimensional allowance needs to be reserved in the mold design; otherwise, product defects will occur. Utility Model Content

[0003] The main technical problem solved by this utility model is to provide a flow channel plate stamping die that can improve dimensional stability and reduce the allowance in die design.

[0004] To solve the above-mentioned technical problems, the present invention provides a flow channel plate stamping die, comprising an upper die and a lower die. The upper die includes an upper template with multiple upper die hooks mounted thereon. An upper forming plate is fixed to the surface of the upper template. Two pairs of die-closing guide sleeves are symmetrically arranged on the upper template surfaces on both sides of the upper forming plate. The lower die includes a lower template and a base plate. The base plate is connected to the lower template via multiple support plates. Multiple lower die hooks are mounted on the lower template, and a die-closing guide sleeve is fixed to the surface of the lower template. The lower forming plate, corresponding to the upper forming plate, has two pairs of mold closing guide posts symmetrically arranged on the lower template plates on both sides, corresponding to the mold closing guide sleeve. A stamping buffer is installed between the two mold closing guide posts on the same side. The forming area of ​​the upper forming plate is surrounded by an upper pressure ring edge, and the forming area of ​​the lower forming plate is surrounded by a lower pressure ring edge. The upper pressure ring edge is provided with an upper forming surface of the drawbead, and the lower pressure ring edge is provided with a corresponding lower forming surface of the drawbead. The drawbead forming cavity formed by the upper forming surface of the drawbead and the lower forming surface of the drawbead are provided with two drawbeads.

[0005] In a preferred embodiment of this utility model, a lower forming groove for the drawbead is provided on the inner ring of the lower forming surface near the lower forming surface, and a lower forming convex surface for the drawbead is provided on the outer side of the lower forming groove. A higher forming convex surface for the drawbead is provided on the upper forming surface of the drawbead corresponding to the lower forming groove, and a higher forming groove for the drawbead is provided corresponding to the lower forming convex surface.

[0006] In a preferred embodiment of this invention, a rectangular lower clearance wall is provided around the periphery of the lower forming plate. Multiple material guide blocks are symmetrically installed in pairs on the four sides of the lower clearance wall. A corresponding rectangular upper clearance wall is provided around the periphery of the upper forming plate. Guide block clearance grooves are correspondingly provided on the four sides of the upper clearance wall. Corner trimming knives are provided at the four corners of the upper clearance wall, and knife-avoiding grooves are correspondingly provided at the four corners of the lower clearance wall. There are a total of eight material guide blocks, with two installed on each side of the lower clearance wall.

[0007] In a preferred embodiment of this utility model, multiple sets of buffer washers are symmetrically arranged in pairs on the lower clearance wall, and a washer groove is provided on the upper clearance wall corresponding to the position of the buffer washers.

[0008] In a preferred embodiment of this utility model, limit posts are installed at the four corners of the lower template.

[0009] In a preferred embodiment of this utility model, the plurality of support plates divide the space between the lower template and the base plate into a plurality of grids, and a plurality of support columns are installed in each grid.

[0010] The beneficial effects of this utility model are as follows: This utility model is an improvement on the structure of existing flow channel plate stamping dies. By setting two draw ribs around the perimeter of the die, the circumferential tensile force of the peripheral draw rib structure on the plate surface is increased. Since two draw ribs are used, the tensile force that can be withstood is larger, which can effectively prevent the plate surface from being pulled towards the stamping position and forming wrinkles during the stamping process. In this way, there will be no springback problem after stamping, which significantly improves the dimensional stability of the product during processing. As a result, the allowance reserved around the perimeter in the die design can be significantly reduced, and the raw material cost is significantly reduced. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the upper mold structure of a preferred embodiment of the present invention; Figure 2 This is a schematic diagram of the lower mold structure of the embodiment shown; Figure 3 yes Figure 2 Schematic diagram of a partial structure of the middle and lower pressure ring; The components in the attached diagram are labeled as follows: 1. Upper template, 2. Upper forming surface, 3. Lower template, 4. Lower forming surface, 5. Base plate, 6. Support plate, 7. Support column; 101. Mold closing guide sleeve; 102. Upper mold lifting hook; 201. Upper pressure ring edge; 202. Washer groove; 203. Guide block clearance groove; 204. Corner trimmer. 301. Mold closing guide post; 302. Buffer; 303. Limiting post; 304. Lower mold hook; 401. Lower pressure ring edge; 4011. Lower shaping groove of drawbead; 4012. Lower shaping convex surface of drawbead; 402. Buffer washer; 403. Loading guide block; 404. Knife avoidance groove. Detailed Implementation

[0012] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the scope of protection of the present invention.

[0013] Please see Figure 1 and Figure 2 The embodiments of this utility model include: A flow channel plate stamping die includes an upper die and a lower die. The upper die includes an upper template 1 with three upper die hooks 102 mounted on it. An upper forming plate 2 is fixed to the surface of the upper template 1. Two pairs of die-closing guide sleeves 101 are symmetrically arranged on the upper template surfaces on both sides of the upper forming plate 2. The lower die includes a lower template 3 and a base plate 5. The base plate 5 and the lower template 3 are connected by seven support plates 6. Four lower die hooks 304 are mounted on the lower template 3. A lower forming plate 4 corresponding to the upper forming plate 2 is fixed to the surface of the lower template 3. On the lower template 3 on both sides of the lower forming plate 4, two pairs of mold closing guide posts 301 corresponding to the mold closing guide sleeve 101 are symmetrically arranged. A stamping buffer 302 is installed between the two mold closing guide posts 301 on the same side. The forming area of ​​the upper forming plate 2 is surrounded by an upper pressure ring edge 201, and the forming area of ​​the lower forming plate 4 is surrounded by a lower pressure ring edge 401. The upper pressure ring edge 201 is provided with an upper forming surface of the drawing rib, and the lower pressure ring edge 401 is provided with a corresponding lower forming surface of the drawing rib. The drawing rib forming cavity formed by the upper forming surface of the drawing rib and the lower forming surface of the drawing rib is provided with two drawing ribs.

[0014] The inner ring of the lower forming surface of the drawbead, near the lower forming surface, is provided with a lower forming groove 4011. A lower forming convex surface 4012 is provided on the outer side of the lower forming groove 4011. A higher forming convex surface is provided on the upper forming surface of the drawbead corresponding to the lower forming groove 4011, and a lower forming groove is provided corresponding to the lower forming convex surface 4012. In this way, during the forming process of the flow channel plate, the inner ring of the pressing edge forms a concave rib, and the outer ring forms a convex rib. The concave and convex ribs work together to hold the plate surface, effectively preventing the plate surface from being pulled during stamping, improving dimensional stability during processing, preventing wrinkles and subsequent springback problems, and resulting in a compact overall structure that saves design margin for the plate surface.

[0015] The lower forming plate 4 is surrounded by a rectangular lower clearance wall. Eight material guide blocks 403 are symmetrically installed in pairs on the four sides of the lower clearance wall, with two blocks installed on each side of the lower clearance wall. The upper forming plate 2 is surrounded by a corresponding rectangular upper clearance wall. Guide block clearance grooves 203 are correspondingly provided on the four sides of the upper clearance wall. Corner trimming cutters 204 are provided at the four corners of the upper clearance wall, and corresponding cutter clearance grooves 404 are provided at the four corners of the lower clearance wall. The material guide blocks 403 facilitate the placement of the raw material sheet before stamping. When placing the raw material sheet on the lower forming plate 4, it will be automatically guided to the processing position by the material guide blocks 403 from four directions. The combination of corner trimming cutters 204 and cutter clearance grooves 404 can cut off the four corners during the stamping process, facilitating subsequent processing.

[0016] The lower clearance wall is symmetrically equipped with seven sets of silicone rubber buffer washers 402 in pairs, with three sets evenly distributed in pairs on both short sides and four sets evenly distributed in pairs on both long sides. The upper clearance wall has corresponding washer grooves 202 at the positions of the buffer washers 402. By setting the buffer washers 402, direct collision between the upper and lower clearance walls during stamping can be prevented, thus avoiding mold damage. The washer grooves 202 prevent the buffer washers 402 from shifting due to deformation during mold closing.

[0017] Limiting posts 303 are installed at all four corners of the lower template 3. By using the limiting posts 303, a certain supporting force can be provided to the corners of the upper template 3 during the stamping process, preventing deformation after long-term repeated stress without support, which would affect the overall accuracy of the mold.

[0018] The seven support plates divide the space between the lower template and the base plate into six compartments, with two support columns installed in each compartment. This support structure further improves the stability of the support between the base plate and the lower template.

[0019] In actual stamping, the upper pressure ring edge 201 and the lower pressure ring edge 401 will close synchronously, forming a concave draw rib and a convex draw rib around the forming surface. In this way, the two draw ribs act on the sheet surface simultaneously during the stamping process. On the one hand, it effectively prevents the sheet surface from being squeezed to the stamping position and forming wrinkles. On the other hand, it effectively prevents springback deformation caused by the loss of force at the stamping position after stamping. This significantly enhances the overall shape stability, effectively reduces the allowance reserved in the mold design, thereby improving the utilization rate of raw materials and reducing production costs.

[0020] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the description and drawings of this utility model, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A flow channel plate stamping forming die, the flow channel plate stamping forming die comprising an upper die and a lower die, the upper die comprising an upper template, a plurality of upper die hooks mounted on the upper template, an upper forming plate fixed on the surface of the upper template, two pairs of die-closing guide sleeves symmetrically arranged on the upper template surfaces on both sides of the upper forming plate, the lower die comprising a lower template and a base plate, the base plate being connected to the lower template by a plurality of support plates, a plurality of lower die hooks mounted on the lower template, a lower forming plate corresponding to the upper forming plate fixed on the surface of the lower template, two pairs of die-closing guide posts corresponding to the die-closing guide sleeves symmetrically arranged on the lower template surfaces on both sides of the lower forming plate, a stamping buffer installed between two die-closing guide posts on the same side, characterized in that... The upper forming plate has an upper pressure ring edge surrounding its forming area, and the lower forming plate has a corresponding lower pressure ring edge surrounding its forming area. The upper pressure ring edge has an upper forming surface for the drawbead, and the lower pressure ring edge has a corresponding lower forming surface for the drawbead. The drawbead forming cavity formed by the upper forming surface and the lower forming surface of the drawbead is provided with two drawbeads.

2. The flow channel plate stamping die according to claim 1, characterized in that, The lower forming surface of the drawbead has a lower forming groove on the inner ring near the lower forming surface, and a lower forming convex surface is provided on the outer side of the lower forming groove. The upper forming surface of the drawbead has an upper forming convex surface corresponding to the lower forming groove, and an upper forming groove is provided on the lower forming convex surface.

3. The flow channel plate stamping die according to claim 1, characterized in that, The lower forming plate is surrounded by a rectangular lower clearance wall. Multiple material guide blocks are symmetrically installed on each of the four sides of the lower clearance wall. The upper forming plate is surrounded by a corresponding rectangular upper clearance wall. Guide block clearance grooves are provided on each of the four sides of the upper clearance wall. Corner trimming knives are provided at the four corners of the upper clearance wall. Knife clearance grooves are provided at the four corners of the lower clearance wall.

4. The flow channel plate stamping die according to claim 3, characterized in that, There are a total of 8 loading guide blocks, with two installed on each side of the lower clearance wall.

5. The runner plate stamping die according to claim 3, characterized in that, Multiple sets of buffer washers are symmetrically arranged in pairs on the lower clearance wall, and a washer groove is provided on the upper clearance wall at the position corresponding to the buffer washers.

6. The flow channel plate stamping die according to claim 1, characterized in that, Limiting posts are installed at the four corners of the lower template.

7. The runner plate stamping die according to claim 1, characterized in that, The multiple support plates divide the space between the lower template and the base plate into multiple grids, and each grid contains multiple support columns.

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