Inward side punching die of stretching shell

Abstract

The utility model discloses an inward side punching die of a stretching shell, and relates to the technical field of punching dies. The side punching die comprises an upper die and a lower die. The upper die comprises an upper die base, an upper padding plate, a clamping plate, a back stripping plate and a stripper plate which are sequentially arranged from top to bottom, the clamping plate is fixedly connected with at least two upper die push rods which are in bilateral symmetry and are vertically arranged, the upper die push rods penetrate through the back stripping plate, and the penetrating-out ends of the upper die push rods are provided with first slopes. At least two upper die sliding blocks which are in bilateral symmetry and can slide oppositely are connected to the stripper plate in a sliding mode, second inclined faces opposite to the first inclined faces are arranged on the upper die sliding blocks, and side punching punches are fixedly connected to the bottoms of the upper die sliding blocks. The lower die comprises a lower die base, a lower base plate and a lower die plate which are sequentially arranged from bottom to top, and at least two lower die knife edges which are symmetrical left and right and correspond to the side punching punches are embedded in the lower die plate. According to the side punching die, lateral punching machining of at least two stretching shell products can be conducted at the same time in the one-time die closing and opening process, and the production efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of stamping die technology, and in particular to an inward side stamping die for a stretching shell. Background Technology

[0002] Molds are specialized tools used in industrial production for processes such as forming, casting, stamping, and stretching, and are widely used in manufacturing. Some existing stretched shell products, such as... Figures 1-2 As shown, the side of the part has a notch, and stamping dies are typically used to process the side notch of drawn shell parts. However, some existing side-punching dies only have a single station, meaning that only one product can be side-punched in a single mold closing and opening process, resulting in low work efficiency. Therefore, it is necessary to provide an improved side-punching die. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide an inward side punching die for a stretch shell, which can perform side punching processing of at least two stretch shell products simultaneously during one die closing and opening process, thereby improving production efficiency.

[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0005] An inward-facing side-punching die for a stretch shell includes an upper die and a lower die. The upper die includes an upper die base, an upper pad, a clamping plate, a back stripper plate, and a stripper plate arranged sequentially from top to bottom. At least two left-right symmetrical and vertically arranged upper die push rods are fixedly connected to the clamping plate. The upper die push rods pass through the back stripper plate and have a first inclined surface at their protruding ends. At least two left-right symmetrical and opposing upper die sliders are slidably connected to the stripper plate. The upper die sliders have a second inclined surface opposite to the first inclined surface. A side punch is fixedly connected to the bottom of the upper die slider. The lower die includes a lower die base, a lower pad, and a lower template arranged sequentially from bottom to top. At least two left-right symmetrical lower die cutting edges corresponding to the side punch are embedded in the lower template.

[0006] In some embodiments, cutting edges are provided on the opposing surfaces of the two side punches.

[0007] In some embodiments, a lower die positioning block is embedded on the lower template below the lower die cutting edge. The lower die positioning block is provided with a slot adapted to the stretched shell product, which is used to position the stretched shell product.

[0008] In at least one embodiment, a lower mold ejector rod that can move up and down is connected to the lower mold base. The lower end of the lower mold ejector rod is connected to the lower mold base through an elastic element, and the upper end passes through the lower pad and is inserted into the lower mold positioning block. The lower mold ejector rod is used to eject the stretched shell product in the lower mold positioning block.

[0009] In at least one embodiment, the elastic element is a spring.

[0010] Compared with the prior art, this utility model achieves at least the following beneficial effects:

[0011] This invention features at least two symmetrical upper die push rods and two symmetrical upper die sliders that can slide in opposite directions. Each upper die slider has a side punch at its bottom, and the lower die plate is inlaid with at least two symmetrical lower die cutting edges corresponding to the side punches. The structure is compact and makes reasonable use of space. By cooperating with the cutting edge of the side punch and the lower die cutting edge, at least two stretchable shell products can be laterally stamped simultaneously during the process of the upper and lower dies closing, thus improving production efficiency. Attached Figure Description

[0012] Figure 1 This is a structural schematic diagram of a stretched shell product.

[0013] Figure 2 A structural schematic diagram of a stretched shell product from another perspective;

[0014] Figure 3 This is a schematic diagram of the structure during mold making in an embodiment of this application;

[0015] Figure 4 This is a schematic diagram of the structure during mold closing in an embodiment of this application;

[0016] Figure 5 This is a schematic diagram of the connection structure between the side punch and the lower die cutting edge in an embodiment of this application.

[0017] The numbers in the diagram are as follows: 1. Upper die base; 2. Upper backing plate; 3. Clamping plate; 4. Back stripper plate; 5. Stripper plate; 6. Upper die push rod; 61. First inclined surface; 7. Upper die slider; 71. Second inclined surface; 8. Side punch; 9. Lower die base; 10. Lower backing plate; 20. Lower die template; 30. Lower die cutting edge; 40. Lower die positioning block; 401. Slot; 50. Lower die ejector pin; 60. Elastic element; 70. Stretched shell product. Detailed Implementation

[0018] The present invention will now be described in detail with reference to exemplary embodiments shown in the accompanying drawings. However, it should be understood that the present application may be implemented in many different forms and should not be construed as limited to the embodiments set forth herein. These embodiments are provided herein to make the disclosure of this application more complete and to fully convey the concept of the present application to those skilled in the art.

[0019] In the description of this application, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "several" or "more than" means two or more, unless otherwise explicitly specified. In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances. In this application, unless otherwise expressly specified and limited, "above" or "below" a second feature can include direct contact between the first and second features, or it can include contact between the first and second features through another feature between them. Moreover, "above," "over," and "on top" of a second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" of a second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0020] like Figures 3-5As shown in the embodiment of this application, an inward side punching die for a stretch shell includes an upper die and a lower die. The upper die includes an upper die base 1, an upper pad 2, a clamping plate 3, a back ejector plate 4, and a stripper plate 5 arranged sequentially from top to bottom. At least two left-right symmetrical and vertically arranged upper die push rods 6 are fixedly connected to the clamping plate 3. The upper die push rods 6 pass through the back ejector plate 4 and have a first inclined surface 61 at their protruding ends. At least two left-right symmetrical and opposing upper die sliders 7 are slidably connected to the stripper plate 5. The two upper die sliders 7 have a second inclined surface 71 opposite to the first inclined surface 61, and each has a side punch 8 fixedly connected to its bottom. The opposing surfaces of the two side punches 8 have cutting edges. It should be noted that the upper die push rods 6 and the upper die sliders 7 form a wedge mechanism. When the back ejector plate 4 and the stripper plate 5 are closed, the second inclined surface 71 of the upper die slider 7... The inclined surface 71 contacts the first inclined surface 61 of the upper die push rod 6. The upper die push rod 6 pushes the upper die slider 7. Due to the action of the inclined surface, the upper die slider 7 can slide horizontally toward the inside of the upper die, thereby driving the side punch 8 to move. The lower die includes a lower die base 9, a lower pad 10 and a lower template 20 arranged sequentially from bottom to top. The stretched shell product 70 is fixed on the lower template 20. The lower template 20 is inlaid with at least two left-right symmetrical lower die cutting edges 30 corresponding to the side punch 8. When the upper die slider 7 drives the side punch 8 to move inward, its cutting edge cooperates with the lower die cutting edge 30 to cut a notch from the inside to the outside of the stretched shell product 70 on the lower template 20, thus completing the side punching work.

[0021] This invention features at least two symmetrical upper die push rods 6 and two symmetrical upper die sliders 7 that can slide in opposite directions. Each upper die slider 7 has a side punch 8 at its bottom. The lower die plate 20 is inlaid with at least two symmetrical lower die cutting edges 30 corresponding to the side punches 8. The structure is compact and makes reasonable use of space. By cooperating with the cutting edges of the side punches 8 and the lower die cutting edges 30, multiple stretchable shell products 70 can be laterally stamped simultaneously during one die closing process, thus improving production efficiency.

[0022] Specifically, a lower die positioning block 40 is embedded on the lower die template 20 below the lower die cutting edge 30. The lower die positioning block 40 is provided with a slot 401 that is adapted to the stretched shell product 70. When the stretched shell product 70 is placed in the slot 401, the stretched shell product 70 can be positioned when the side punch 8 performs side punching, ensuring the correct position of the stretched shell product 70 and preventing the stretched shell product 70 from moving.

[0023] A movable lower mold ejector rod 50 is connected to the lower mold base 9. The lower end of the lower mold ejector rod 50 is connected to the lower mold base 9 through an elastic element 60, and the upper end passes through the lower pad plate 10 and inserts into the lower mold positioning block 40. Preferably, the elastic element 60 is a spring. When the upper mold and lower mold open, the lower mold ejector rod 50, under the action of the spring, pushes the stretched shell product 70 out of the lower mold positioning block 40 to complete the demolding, resulting in a complete stretched shell product 70, which facilitates demolding.

[0024] The working principle of this utility model is as follows: When the die is running on the punch press, the stripper plate 5 first contacts and closes with the lower die plate 20 to press down the stretched shell product 70; then the back stripper plate 4 closes with the stripper plate 5. At this time, the upper die push rod 6 pushes the upper die slider 7 to drive the side punch 8 to slide inward. The cutting edge of the side punch 8 cooperates with the lower die cutting edge 30. The stretched shell product 70 is accurately fixed under the action of the lower die positioning block 40, so that the side punch 8 completes the side punching of the stretched shell product 70; when the die runs one stroke, it is in the open state. Under the action of the elastic element 60, the lower die push rod 50 pushes the stretched shell product 70 upward to complete the stripping, thus obtaining a stretched shell product 70 with a complete structure.

[0025] It should be understood that all the above embodiments are exemplary and not restrictive. Any modifications, equivalent changes and alterations made by those skilled in the art to the specific embodiments described above under the concept of this utility model shall still fall within the scope of the technical solution of this utility model.

Claims

1. An inward side punch die for stretch shell, comprising an upper die and a lower die, characterized in that: the upper die comprises, from top to bottom, an upper die seat, an upper backing plate, a clamping plate, a back stripper plate and a stripper plate, at least two upper die push rods vertically arranged symmetrically left and right are fixedly connected to the clamping plate, the upper die push rods pass through the back stripper plate and are provided with first inclined surfaces at the penetrating ends, at least two upper die sliding blocks symmetrically left and right and oppositely slidable are slidingly connected to the stripper plate, the upper die sliding blocks are provided with second inclined surfaces opposite to the first inclined surfaces, and side punch heads are fixedly connected to the bottom of the upper die sliding blocks; the lower die comprises, from bottom to top, a lower die seat, a lower backing plate and a lower die plate, and at least two lower die knife edges symmetrically left and right and corresponding to the side punch heads are inlaid in the lower die plate.

2. An inwardly-facing side punch tool for a stretch shell according to claim 1, characterized in that: Cutting edges are arranged on the opposite surfaces of the two side punch heads.

3. The stretch shell interior side punch mold of claim 1, wherein: A lower die positioning block is inlaid below the lower die knife edges on the lower die plate, the lower die positioning block is provided with a clamping groove matched with the stretch shell product, and the lower die positioning block is used for positioning the stretch shell product.

4. An inwardly-facing side punch for a stretch shell according to claim 3, characterized in that: A lower die ejector rod movable up and down is connected to the lower die seat, the lower end of the lower die ejector rod is connected to the lower die seat through an elastic element, the upper end of the lower die ejector rod penetrates through the lower backing plate and is inserted into the lower die positioning block, and the lower die ejector rod is used for ejecting the stretch shell product in the lower die positioning block.

5. An inwardly-facing side punch for a stretch shell according to claim 4, characterized in that: The elastic element is a spring.

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