Stretching forming die for metal bowl pad

Abstract

The utility model discloses a metal bowl pad stretch forming die, including base, work table, support plate, forming cavity, first stamping subassembly and second stamping subassembly, work table is provided above base through first stand column, support plate is provided above work table through second stand column, forming cavity is provided with first stamping subassembly, second stamping subassembly is provided with second stand column, second stamping subassembly is provided with second stamping subassembly. The forming cavities are formed in the two sides of the table top of the workbench respectively, the first stamping assembly is arranged on the supporting plate and located above one forming cavity, and the second stamping assembly is arranged on the supporting plate and located above the other forming cavity. According to the metal bowl pad stretching forming die, preliminary stretching forming is conducted on the workpiece through the first stamping assembly, then the workpiece is further stretched and punched through the second stamping assembly, bowl pad machining can be achieved only through two steps, the production technological process is simplified, and therefore production efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of stretching dies, in particular to a metal bowl pad stretching forming die. Background Art

[0002] Metal bowl pads are commonly used gasket structures in products such as foot cups and cable drums, and are usually made by stretching galvanized sheets. The current stretching process generally includes the following steps: sheet material cutting, multiple stretching, punching, and material withdrawal. The multiple stretching process generally requires more than three stretchings to form. The stretching process uses a continuous stretching die such as the one disclosed in patent CN213671415U, but the structure and working process of such a die are relatively complicated, which seriously affects the stretching efficiency of the bowl pad.

[0003] To this end, the present application proposes a metal bowl mat stretching forming die to improve the stretching forming efficiency of the bowl mat. Utility Model Content

[0004] To achieve the above-mentioned purpose, the utility model provides a metal bowl pad stretching forming die, including a base, a workbench, a support plate, a forming cavity, a first stamping assembly and a second stamping assembly, the workbench is arranged above the base through a first column, the support plate is arranged above the workbench through a second column, the forming cavities are respectively arranged on both sides of the table top of the workbench, the first stamping assembly is arranged on the support plate and is located above one of the forming cavities, and the second stamping assembly is arranged on the support plate and is located above the other forming cavity.

[0005] Furthermore, the first stamping assembly includes a first driving unit and a first punch, the first driving unit is arranged above the support plate, the first punch is slidably arranged below the support plate, and the first driving unit is transmission-connected to the first punch through a first sliding rod, and the shape of the first punch matches the shape of the forming cavity.

[0006] Furthermore, a first annular pressing plate is provided on the upper side of the outer ring of the first punch, and an annular cutting knife is provided on the bottom of the first annular pressing plate.

[0007] Furthermore, the forming cavity is also provided with an annular cutter groove corresponding to the annular cutter.

[0008] Furthermore, a first spring is sleeved on the outer side of the first sliding rod at a position between the support plate and the annular pressure plate.

[0009] Furthermore, the second stamping assembly includes a second driving unit and a second punch, the second driving unit is arranged above the support plate, the second punch is slidably arranged below the support plate, and the second driving unit is transmission-connected to the second punch through a second sliding rod, the shape of the second punch matches the shape of the forming cavity, and a third punch is provided at the lower end of the second punch.

[0010] Furthermore, a second annular pressure plate is provided on the upper side of the outer ring of the second punch.

[0011] Furthermore, a second spring is sleeved on the outer side of the second sliding rod at a position between the support plate and the second annular pressure plate.

[0012] Furthermore, a first blanking hole is provided at the bottom of the forming cavity, and a second blanking hole is provided on the workbench at a position directly below the second stamping assembly, and the first blanking hole is coaxially arranged with the second blanking hole.

[0013] Furthermore, a rotating unit is provided between the base and the workbench, a connecting rod is provided on the workbench surface, two ends of the connecting rod are respectively connected to the molding cavities on both sides, and the rotating unit is connected to the middle position of the connecting rod.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] The metal bowl pad stretching and forming die of the utility model performs preliminary stretching and forming on the workpiece through the first stamping component, and then further stretches and punches the workpiece through the second stamping component. Only two steps are required to realize the processing of the bowl pad, which simplifies the production process and thus improves production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a cross-sectional view of the overall structure of the utility model;

[0017] Figure 2 for Figure 1 A magnified view of the local structure at point A.

[0018] In the figure: 1-base, 2-workbench, 3-support plate, 4-molding cavity, 5-first column, 6-second column, 7-first driving unit, 8-first punch, 9-first slide bar, 10-first annular pressure plate, 11-annular cutter, 12-annular knife groove, 13-first spring, 14-second driving unit, 15-second punch, 16-second slide bar, 17-third punch, 18-second annular pressure plate, 19-second spring, 20-first blanking hole, 21-second blanking hole, 22-rotation unit, 23-connecting rod. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] like Figure 1-2 As shown, the metal bowl pad stretching forming die in this embodiment includes a base 1, a workbench 2, a support plate 3, a forming cavity 4, a first stamping assembly and a second stamping assembly. The workbench 2 is arranged above the base 1 through a first column 5, the support plate 3 is arranged above the workbench 2 through a second column 6, the forming cavities 4 are respectively arranged on both sides of the table top of the workbench 2, the first stamping assembly is arranged on the support plate 3 and is located above one of the forming cavities 4, and the second stamping assembly is arranged on the support plate 3 and is located above the other forming cavity 4.

[0021] Among them, the first stamping assembly includes a first driving unit 7 and a first punch 8. The first driving unit 7 is arranged above the support plate 3, and the first punch 8 is slidably arranged below the support plate 3. The first driving unit 7 is transmission-connected to the first punch 8 through a first sliding rod 9, and the shape of the first punch 8 matches the shape of the forming cavity 4.

[0022] A first annular pressure plate 10 is provided on the upper side of the outer ring of the first punch 8, an annular cutter 11 is provided at the bottom of the first annular pressure plate 10, and an annular knife groove 12 corresponding to the annular cutter 11 is also provided on the forming cavity 4. A first spring 13 is sleeved on the outer side of the first slide rod 9 at a position between the support plate 3 and the annular pressure plate 11.

[0023] When in use, the blank to be processed (usually a square galvanized sheet) is first placed on the upper surface of the forming cavity 4, and then the first driving unit 7 drives the first punch 8 to move downward, so that the first punch 8 quickly enters the forming cavity 4. Under the joint action of the two, the blank is punched out into the prototype of the bowl mat; at the same time, the annular cutter 11 cuts off the excess part around the blank, so that the upper edge of the bowl mat forms a circular structure.

[0024] The second stamping assembly includes a second driving unit 14 and a second punch 15. The second driving unit 14 is arranged above the support plate 3, and the second punch 15 is slidably arranged below the support plate 3. The second driving unit 14 is transmission-connected to the second punch 15 via a second sliding rod 16. The shape of the second punch 15 matches the shape of the forming cavity 4. A third punch 17 is also provided at the lower end of the second punch 15, and the third punch 17 is a cylindrical structure.

[0025] A second annular pressing plate 18 is disposed on the upper side of the outer ring of the second punch 15 , and a second spring 19 is sleeved on the outer side of the second slide bar 16 at a position between the support plate 3 and the second annular pressing plate 18 .

[0026] A first blanking hole 20 is provided at the bottom of the forming cavity 4 , and a second blanking hole 21 is provided on the workbench 2 just below the first stamping assembly. The first blanking hole 20 and the second blanking hole 21 are coaxially arranged.

[0027] A rotating unit 22 is further provided between the base 1 and the workbench 2. A connecting rod 23 is provided on the workbench 2. Both ends of the connecting rod 23 are respectively connected to the molding cavities 4 on both sides. The rotating unit 22 is connected to the middle position of the connecting rod 23.

[0028] When the first stamping assembly is processed, the rotating unit 22 drives the connecting rod 23 to rotate 180° in the horizontal direction, swaps the positions of the two forming cavities 4, and the second driving unit 14 drives the second punch 15 and the third punch 17 to move downward, and the blank is further shaped by the second punch 15, and a hole is punched at the bottom of the blank by the third punch 17, and the punched waste falls out along the first blanking hole 20 and the second blanking hole 21.

[0029] The first driving unit 7 and the second driving unit 14 may be hydraulic cylinders or air cylinders, and the rotating unit 22 may be a motor or a rotating air cylinder.

[0030] The mold can realize the processing of the bowl mat in only two steps, which simplifies the production process and improves production efficiency.

[0031] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A metal bowl pad stretching forming die, characterized in that: It includes a base, a workbench, a support plate, a molding cavity, a first stamping assembly and a second stamping assembly. The workbench is arranged above the base through a first column, the support plate is arranged above the workbench through a second column, the molding cavities are respectively arranged on both sides of the table top of the workbench, the first stamping assembly is arranged on the support plate and is located above one of the molding cavities, and the second stamping assembly is arranged on the support plate and is located above the other molding cavity.

2. The metal bowl pad stretching forming die according to claim 1, characterized in that: The first stamping assembly includes a first driving unit and a first punch. The first driving unit is arranged above the support plate, and the first punch is slidably arranged below the support plate. The first driving unit is transmission-connected to the first punch through a first sliding rod, and the shape of the first punch matches the shape of the forming cavity.

3. The metal bowl pad stretching forming die according to claim 2, characterized in that: A first annular pressing plate is disposed on the upper side of the outer ring of the first punch, and an annular cutting knife is disposed on the bottom of the first annular pressing plate.

4. The metal bowl pad stretching forming die according to claim 3, characterized in that: The forming cavity is also provided with an annular cutter groove corresponding to the annular cutter.

5. The metal bowl pad stretching forming die according to claim 3, characterized in that: A first spring is sleeved on the outer side of the first sliding rod at a position between the support plate and the annular pressure plate.

6. The metal bowl pad stretching forming die according to claim 1, characterized in that: The second stamping assembly includes a second driving unit and a second punch. The second driving unit is arranged above the support plate, and the second punch is slidably arranged below the support plate. The second driving unit is transmission-connected to the second punch through a second sliding rod. The shape of the second punch matches the shape of the forming cavity, and a third punch is provided at the lower end of the second punch.

7. The metal bowl pad stretching forming die according to claim 6, characterized in that: A second annular pressing plate is provided on the upper side of the outer ring of the second punch.

8. The metal bowl pad stretching forming die according to claim 7, characterized in that: A second spring is sleeved on the outer side of the second sliding rod at a position between the support plate and the second annular pressure plate.

9. The metal bowl pad stretching forming die according to claim 1, characterized in that: A first blanking hole is provided at the bottom of the forming cavity, and a second blanking hole is provided on the workbench at a position directly below the second stamping assembly, and the first blanking hole and the second blanking hole are coaxially arranged.

10. The metal bowl pad stretching forming die according to claim 1, characterized in that: A rotating unit is also provided between the base and the workbench. A connecting rod is provided on the workbench surface. Two ends of the connecting rod are respectively connected to the molding cavities on both sides. The rotating unit is connected to the middle position of the connecting rod.

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