Stamping die capable of improving overall strength of water tower cover

Abstract

The stamping die capable of improving the overall strength of the water tower cover comprises a lower die assembly, an upper die assembly and a working table, the working table is provided with a lower die installation groove and an upper die installation frame arranged above the lower die installation groove, the upper die installation frame is further provided with telescopic air, and the lower die assembly comprises a lower fixed die and a lower male die. The upper die assembly comprises an upper clamping die and an upper female die. The lower die assembly, the upper die assembly and the workbench are used in a combined mode, continuous punch forming can be conducted on a plate, during forming, the groove die of the upper female die and the protruding block structure of the lower protruding block are matched to press out reinforcing ribs, production efficiency is improved, and the strength of a top cover is enhanced.

Description

Technical Field

[0001] The utility model relates to the technical field of stamping dies, and particularly relates to a stamping die capable of improving the overall strength of a water tower cover. Background Art

[0002] Solar water heaters are increasingly recognized by society. The superiority of using the thermal energy of sunlight to obtain hot water has far exceeded that of electric water heaters and gas water heaters. The advantages of solar water heaters are as follows: 1. Zero operating cost. During the use process, as long as there is sunlight, it can generate heat, without consuming valuable energy such as electricity and gas, achieving zero usage cost; 2. Pollution-free. The operation of the entire solar water heater is just a process of collecting heat and then converting heat. The above advantages have promoted the popularization and application of solar water heaters.

[0003] The water storage tower is an important component of a solar water heater. The water storage tower includes a bracket, a tower body, and a top cover. Currently, the tower cover of the water tower is cut into a circular size of a specified size by a cutting machine, and then trimmed. After trimming, it enters a stamping machine for stamping and curling. Such an operation process line is too cumbersome, and the structural strength of the tower cover is not high, the sealing effect is poor, and it is easy to loosen and cause sealing failure. Summary of the Invention

[0004] To solve the above problems, the utility model provides a stamping die that can be quickly formed at one time and can improve the overall strength of the water tower cover.

[0005] To achieve the above object, the utility model adopts the following technical scheme: A stamping die capable of improving the overall strength of the water tower cover, including a lower die assembly, an upper die assembly, and a workbench. The workbench is provided with a lower die installation groove and an upper die installation frame above it. The upper die installation frame is also provided with a telescopic cylinder.

[0006] The lower die assembly includes a lower fixed die and a lower punch. The lower fixed die is a hollow cylindrical structure, and its top and bottom surfaces are open structures. The lower fixed die is fixedly connected to the lower die installation groove of the workbench. The lower punch is arranged inside the fixed die. The middle and lower parts of the lower punch are cylindrical structures, and its diameter is the same as the inner diameter of the lower fixed die. The middle and upper parts are basin-shaped curved surface structures, and the top is a convex block structure. The convex block structure is composed of three circular convex blocks arranged in sequence from bottom to top. The diameters of the convex blocks gradually decrease from bottom to top, forming a stepped shape between adjacent convex blocks. The thicknesses of the two lower convex blocks are the same, and the thickness of the uppermost convex block is 1.5 - 2 times the thickness of the lower convex block. A lower top cylinder is arranged below the lower punch, and the lower top cylinder is connected to the bottom surface of the lower punch through a top rod, so that it can move inside the lower fixed die.

[0007] The upper die assembly includes an upper clamping die and an upper female die. The structure of the upper clamping die is the same as that of the lower fixed die. The upper clamping die is connected to the telescopic end of a telescopic cylinder on the workbench gantry and is located above the lower fixed die, with the two arranged opposite to each other. At the midpoint of the bottom surface of the crossbar of the workbench gantry, an upper ejector cylinder is installed. The upper female die is arranged inside the upper clamping die and is connected to the telescopic end of the upper ejector cylinder. The upper female die is of a cylindrical structure, and there is a gap between the outer peripheral surface of the upper female die and the inner side wall of the upper clamping die. A cutting knife is installed at the lower part of the outer peripheral surface of the upper female die, and a groove die is provided on the bottom surface. The shape of the groove die is adapted to the shape of the convex block structure on the top surface of the lower male die.

[0008] As an optimized solution for this case, in order to improve the stamping accuracy, a positioning hole penetrating through the upper and lower surfaces is provided at the center of the bottom surface of the upper female die. An internal thread structure is provided in the positioning hole, and a positioning screw is provided in the positioning hole. The bottom of the positioning screw penetrates outside the bottom surface of the upper female die. A lower positioning hole opposite to and matching the size of the positioning screw is provided at the center of the top surface of the lower male die.

[0009] As an optimized solution for this case, in order to improve the clamping effect on the plate, anti-slip rubber pads are bonded to the bottom edge of the upper clamping die and the top edge of the lower fixed die.

[0010] Beneficial effects: ①. By combining the use of the lower die assembly, the upper die assembly and the workbench, the present utility model can continuously stamp and form the plate. During forming, the groove die of the upper female die and the convex block structure of the lower convex block cooperate to press out the reinforcing ribs, which not only improves the production efficiency but also strengthens the strength of the top cover.

[0011] ②. By providing positioning screws and lower positioning holes on the upper female die and the lower male die, during stamping, the plate is first positioned and restricted, greatly improving the stamping accuracy, reducing the material loss, and saving the production cost. Description of the Drawings

[0012] Figure 1 It is a schematic structural diagram of the present utility model.

[0013] Figure 2 It is a schematic structural diagram of the lower die assembly in the present utility model.

[0014] Figure 3 It is a schematic structural diagram of the upper die assembly in the present utility model.

[0015] Figure 4 It is a schematic structural diagram of the top cover after stamping and forming.

[0016] In the figure: 1. Workbench; 2. Upper die mounting frame; 3. Telescopic cylinder; 4. Lower fixed die; 5. Lower punch; 6. Lower ejector cylinder; 7. Bump structure; 8. Upper clamping die; 9. Upper concave die; 10. Upper ejector cylinder; 11. Cutting knife; 12. Groove die; 13. Upper positioning hole; 14. Positioning screw; 15. Lower positioning hole. Detailed implementation mode

[0017] The present utility model will be further described below in conjunction with the accompanying drawings and embodiments.

[0018] Among them, the same parts are denoted by the same reference numerals. It should be noted that the terms "front", "rear", "left", "right", "upper" and "lower" used in the following description refer to the directions in the accompanying drawings, and the terms "inner" and "outer" respectively refer to the directions towards or away from the geometric center of a specific part. Moreover, the accompanying drawings are all in a very simplified form and use non-precise ratios, only for the purpose of conveniently and clearly assisting in explaining the purpose of the embodiments of the present utility model.

[0019] As Figures 1-4 shown, this embodiment discloses a stamping die that can improve the overall strength of the water tower cover, which is used for stamping and forming the top cover of a solar water storage tank. Specifically, it includes a lower die assembly, an upper die assembly and a workbench 1. Refer to Figure 1 , a lower die installation groove is provided on the workbench 1, and an upper die mounting frame 2 is arranged above it. The upper die mounting frame 2 is also provided with a telescopic cylinder 3.

[0020] From Figure 1 and Figure 2 it can be seen that the lower die assembly includes a lower fixed die 4 and a lower punch 5. For the specific structure, refer to Figure 2 , the lower fixed die 4 is a hollow cylindrical structure, and its top and bottom surfaces are open structures. The lower fixed die 4 is fixedly connected to the lower die installation groove of the workbench 1. The lower punch 5 is arranged inside the fixed die. The middle and lower parts of the lower punch 5 are cylindrical structures, and its diameter is the same as the inner diameter of the lower fixed die 4. The middle and upper parts are a basin-shaped curved surface structure, and the top is a bump structure 7. The bump structure 7 is composed of three circular bumps arranged in sequence from bottom to top. The diameters of the bumps gradually decrease from bottom to top, so that a stepped shape is formed between two adjacent bumps. Moreover, the thicknesses of the two lower bumps are the same, and the thickness of the uppermost bump is 1.5 - 2 times the thickness of the lower bump. A lower ejector cylinder 6 is arranged below the lower punch 5, and the lower ejector cylinder 6 is connected to the bottom surface of the lower punch 5 through a push rod, so that it can move inside the lower fixed die 4.

[0021] Refer to Figure 1 and Figure 3, the upper die assembly includes an upper clamping die 8 and an upper female die 9. The structure of the upper clamping die 8 is the same as that of the lower fixed die 4. The upper clamping die 8 is connected to the telescopic end of the telescopic cylinder 3 on the gantry of the workbench 1 and is located above the lower fixed die 4, with the two arranged opposite to each other. At the midpoint of the bottom surface of the crossbar of the gantry of the workbench 1, an upper jacking cylinder 10 is installed. From Figure 3 It can be seen that the upper female die 9 is arranged inside the upper clamping die 8 and is connected to the telescopic end of the upper jacking cylinder 10. The upper female die 9 is of a cylindrical structure, and there is a gap between the outer peripheral surface of the upper female die 9 and the inner side wall of the upper clamping die 8. A cutting knife 11 is installed at the lower part of the outer peripheral surface of the upper female die 9, and a groove die 12 is provided on the bottom surface. The shape of the groove die 12 is adapted to the shape of the convex block structure 7 on the top surface of the lower male die 5.

[0022] See Figure 1 and Figure 3 , a through upper positioning hole 13 is provided at the center of the bottom surface of the upper female die 9, an internal thread structure is provided in the upper positioning hole 13, a positioning screw 14 is provided in the upper positioning hole 13, and the bottom of the positioning screw 14 extends out of the bottom surface of the upper female die 9. From Figure 1 and Figure 2 It can be seen that a lower positioning hole 15 opposite to the positioning screw 14 and matching in size is provided at the center of the top surface of the lower male die 5.

[0023] Anti-slip rubber pads are bonded to the bottom edge of the upper clamping die 8 and the top edge of the lower fixed die 4.

[0024] During use, this device is installed on the production line, and each electronic control component is connected to the control device on the production line. When performing stamping, the external feeding and conveying device conveys the plate between the lower fixed die 4 and the upper clamping die 8. At this time, the telescopic cylinder 3 drives the upper clamping die 8 to press down. After clamping the plate in cooperation with the lower fixed die 4, the lower jacking cylinder 6 drives the lower male die 5 to rise to stamp the bottom surface of the plate. The upper jacking cylinder 10 drives the upper female die 9 to press down to stamp the top surface of the plate and cut it with the cutting knife 11, and then it is taken out by the discharging device. Moreover, during stamping, the positioning bolt cooperates with the lower positioning hole 15 to perform secondary positioning on the plate to ensure that the plate will not shift during stamping.

[0025] The above embodiments only illustrate the principle and its effects of the present invention by way of example, rather than limiting the present invention. Any person familiar with this technology can modify or change the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or changes completed by those with ordinary knowledge in the technical field without departing from the spirit and technical idea disclosed by the present invention should still be covered by the claims of the present invention.

Claims

1. A stamping die capable of improving the overall strength of a water tower cover, comprising a lower die assembly, an upper die assembly and a workbench (1), wherein the workbench (1) is provided with a lower die mounting groove and an upper die mounting frame (2) arranged above the lower die mounting frame, and the upper die mounting frame (2) is further provided with a telescopic cylinder (3), characterized in that: The lower die assembly comprises a lower fixed die (4) and a lower punch (5), wherein the lower fixed die (4) is a hollow cylindrical structure, and its top and bottom surfaces are open structures, the lower fixed die (4) is fixedly connected to the lower die mounting groove of the workbench (1), the lower punch (5) is arranged in the fixed die, the middle and lower parts of the lower punch (5) are cylindrical structures, the diameter of which is the same as the inner diameter of the lower fixed die (4), the middle and upper parts are basin-shaped curved structures, and the top is a convex block structure (7), the convex block structure (7) is composed of three circular convex blocks arranged in sequence from bottom to top, the diameter of each convex block gradually decreases from bottom to top, so that a step shape is formed between two adjacent convex blocks, and the thickness of the two lower convex blocks is the same, and the thickness of the uppermost convex block is 1.5-2 times the thickness of the lower convex block, and a lower ejector cylinder (6) is provided below the lower punch (5), and the lower ejector cylinder (6) is connected to the bottom surface of the lower punch (5) through an ejector rod so that it can move in the lower fixed die (4); The upper die assembly comprises an upper clamping die (8) and an upper concave die (9). The structure of the upper clamping die (8) is the same as that of the lower fixed die (4). The upper clamping die (8) is connected to the telescopic end of the telescopic cylinder (3) on the gantry of the workbench (1) and is located above the lower fixed die (4). The two are arranged relative to each other. An upper cylinder (10) is installed at the midpoint of the bottom surface of the crossbar of the gantry of the workbench (1). The upper concave die (9) is arranged in the upper clamping die (8) and is connected to the telescopic end of the upper cylinder (10). The upper concave die (9) is a cylindrical structure, and a gap is left between the outer peripheral surface of the upper concave die (9) and the inner side wall of the upper clamping die (8). A cutting knife (11) is installed at the lower part of the outer peripheral surface of the upper concave die (9), and a groove die (12) is opened on the bottom surface. The shape of the groove die (12) is compatible with the shape of the convex block structure (7) on the top surface of the lower convex die (5).

2. A stamping die capable of improving the overall strength of a water tower cover according to claim 1, characterized in that: An upper positioning hole (13) penetrating the upper and lower surfaces is provided at the center of the bottom surface of the upper concave die (9), an internal thread structure is provided in the upper positioning hole (13), a positioning screw (14) is provided in the upper positioning hole (13), and the bottom of the positioning screw (14) protrudes out of the bottom surface of the upper concave die (9), and a lower positioning hole (15) opposite to the positioning screw (14) and matching in size is provided at the center of the top surface of the lower convex die (5).

3. A stamping die capable of improving the overall strength of a water tower cover according to claim 1 or 2, characterized in that: Anti-slip rubber pads are bonded to the bottom edge of the upper clamping mold (8) and the top edge of the lower fixed mold (4).

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