Shielding case stamping tool

Abstract

The utility model discloses a shielding case stamping frock, including work table, the work table is fixedly connected with support frame, support frame is fixedly connected with four guide rods, four the top of guide rod is fixedly connected with the top plate, the top plate is embedded with hydraulic cylinder no.

Description

Technical Field

[0001] This utility model relates to the field of stamping tooling technology, and more specifically, it relates to a shielding cover stamping tooling. Background Technology

[0002] A shielding enclosure is a protective component used to block electronic signals and is a common electromagnetic compatibility (EMC) design technique in electrical engineering. Its main function is to suppress interference from external electric, magnetic, or electromagnetic fields on internal electronic equipment, while also preventing the radiation of electromagnetic energy generated by the equipment itself. It is typically made of metal and features a closed or semi-closed shell or mesh structure, completely enclosing the equipment to be protected, thus achieving bidirectional electromagnetic isolation.

[0003] The existing shielding covers still have the following problems during the stamping process. Stamping is a common forming process in the manufacturing of shielding covers. After stamping, the metal sheet adheres tightly to the surface of the lower mold cavity, creating significant adhesion and friction, resulting in the shielding component being firmly pressed inside the mold. This compressed state makes demolding difficult; traditional methods often require manual intervention or prying with tools, reducing production efficiency and potentially affecting the surface quality of the parts. Furthermore, during demolding, because the lower mold is usually fixed and lacks an active ejection or elastic ejection structure, the unidirectional tension experienced by the shielding cover during release can easily cause localized stress concentration. This not only causes plastic deformation of the shielding cover itself, affecting dimensional accuracy and assembly performance, but also results in severe scraping against the mold cavity, leading to wear or damage to the mold's working surface. Over time, this increases mold maintenance costs and reduces overall production quality stability.

[0004] In view of this, we propose a shielding cover stamping fixture. Utility Model Content

[0005] (a) Technical problems to be solved In view of the problems existing in the prior art, this utility model provides a shielding cover stamping fixture to solve the technical problems mentioned in the background art.

[0006] (II) Technical Solution To achieve the above objectives, this utility model provides the following technical solution: a shielding cover stamping fixture, including a worktable, a support frame fixedly connected to the worktable, four guide rods fixedly connected to the support frame, a top plate fixedly connected to the top of the four guide rods, a hydraulic cylinder embedded in the top plate, a connecting plate slidably connected to the four guide rods, the connecting plate being fixedly connected to the telescopic end of the hydraulic cylinder, a fixed platform fixedly connected to the lower side of the connecting plate, an upper mold fixedly connected to the fixed platform, a support plate fixedly connected to the upper side of the worktable, a mold base plate fixedly connected to the upper side of the support plate, a plurality of fixed seats arranged in a matrix fixedly connected to the support plate, sliding rods slidably connected to the fixed seats, mold side plates fixedly connected between adjacent sliding rods, an ejection structure provided on the support frame, and an extrusion structure provided on the support plate.

[0007] The present invention is further configured such that the mold base plate and the four mold side plates together form the lower mold.

[0008] The present invention is further configured such that the ejection structure includes two support rods, the support rods are slidably connected to the mold base plate, the support rods pass through the support frame and the support plate, and an ejection plate is fixedly connected between the two support rods.

[0009] The present invention is further configured such that the ejector plate is located on the upper side of the mold base plate, and the size of the ejector plate is the same as the size of the mold base plate.

[0010] The present invention is further configured such that an electric push rod is fixedly connected to the upper side of the workbench, and a connecting plate two is fixedly connected to the telescopic end of the electric push rod, and the connecting plate two is fixedly connected to two support rods.

[0011] The present invention is further configured such that the extrusion structure includes four fixed frames arranged in a matrix, the fixed frames are slidably fixed to the support plate, the fixed frames are slidably connected to a connecting rod, and the connecting rod is fixedly connected to an adjacent mold side plate.

[0012] The present invention is further configured such that the fixed frame is rotatably connected to a rotating component, and the rotating component is hinged to an adjacent connecting rod by a hinge component.

[0013] The present invention is further configured such that a sliding frame is slidably connected between the four guide rods, and two hydraulic cylinders are fixedly connected to the support frame. The telescopic ends of the hydraulic cylinders are fixedly connected to the sliding frame. Four fixed blocks distributed in a matrix are fixedly connected to the lower side of the sliding frame. The fixed blocks are hinged to the adjacent rotating parts by two hinges.

[0014] (III) Beneficial Effects Compared with the prior art, this utility model provides a shielding cover stamping fixture, which has the following beneficial effects: 1. This utility model uses a hydraulic cylinder to drive a sliding frame and a hinge mechanism to control the synchronous separation of the four mold side plates, releasing the lateral constraint on the forming shield. Combined with an electric push rod pushing the ejector plate, the workpiece is smoothly lifted, achieving automated demolding. This mechanism reduces demolding resistance, avoids workpiece deformation caused by forceful pulling and hard ejection, and improves the consistency and quality of the stamped products.

[0015] 2. The side plate of this utility model mold provides uniform support for the sheet metal during the stamping process and can actively retract after stamping, avoiding the scraping or collision between the traditional fixed lower mold and the workpiece during demolding, thus reducing mold wear and damage. The overall structure has high rigidity and coordinated operation, which is conducive to maintaining mold accuracy and long-term reliability.

[0016] 3. This utility model is driven sequentially by hydraulic and electric mechanisms from upper die stamping and side die separation to ejection and part removal, without the need for manual intervention. This greatly improves production efficiency and reduces the risk of operators coming into contact with the mold, meeting the requirements of modern stamping production for automation and human-machine safety. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the front structure of a shielding cover stamping fixture in this utility model; Figure 2 This is a structural schematic diagram of the top plate and connecting plate 1 in this utility model; Figure 3 This is a schematic diagram of the structure of the support plate and the mold side plate in this utility model; Figure 4 This is a schematic diagram of the structure of the mold base plate and the ejector plate in this utility model; Figure 5 This is a structural schematic diagram of the connecting rod and hinge component in this utility model.

[0018] In the diagram: 1. Workbench; 2. Support frame; 3. Guide rod; 4. Top plate; 5. Hydraulic cylinder one; 6. Connecting plate one; 7. Fixed platform; 8. Upper mold; 9. Support plate; 10. Mold base plate; 11. Fixed seat; 12. Slide rod; 13. Mold side plate; 14. Support rod; 15. Ejector plate; 16. Electric push rod; 17. Connecting plate two; 18. Fixed frame; 19. Connecting rod; 20. Rotating component; 21. Hinge one; 22. Sliding frame; 23. Hydraulic cylinder two; 24. Fixed block; 25. Hinge two. Detailed Implementation

[0019] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0020] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0021] In this utility model, unless otherwise stated, the orientations used, such as "up" and "down", usually refer to the direction shown in the accompanying drawings, or to the vertical, perpendicular, or gravitational direction; similarly, for ease of understanding and description, "left" and "right" usually refer to the left and right shown in the accompanying drawings; "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not used to limit this utility model.

[0022] Please see Figures 1-5 A shielding cover stamping fixture includes a workbench 1, a support frame 2 fixedly connected to the workbench 1, four guide rods 3 fixedly connected to the support frame 2, a top plate 4 fixedly connected to the top of the four guide rods 3, a hydraulic cylinder 5 embedded in the top plate 4, a connecting plate 6 slidably connected to the four guide rods 3, the connecting plate 6 being fixedly connected to the telescopic end of the hydraulic cylinder 5, a fixed platform 7 fixedly connected to the lower side of the connecting plate 6, an upper mold 8 fixedly connected to the fixed platform 7, a support plate 9 fixedly connected to the upper side of the workbench 1, a mold base plate 10 fixedly connected to the upper side of the support plate 9, a plurality of fixed seats 11 arranged in a matrix fixedly connected to the support plate 9, sliding rods 12 slidably connected to the fixed seats 11, mold side plates 13 fixedly connected between adjacent sliding rods 12, an ejection structure provided on the support frame 2, and a pressing structure provided on the support plate 9; the mold base plate 10 and the four mold side plates 13 together form the lower mold.

[0023] Please see Figure 2 and Figure 4 The ejection structure includes two support rods 14, which are slidably connected to the mold base plate 10. The support rods 14 pass through the support frame 2 and the support plate 9. An ejection plate 15 is fixed between the two support rods 14. The ejection plate 15 is located on the upper side of the mold base plate 10, and the size of the ejection plate 15 is the same as that of the mold base plate 10. An electric push rod 16 is fixedly connected to the upper side of the worktable 1. A connecting plate 2 17 is fixedly connected to the telescopic end of the electric push rod 16. The connecting plate 2 17 is fixedly connected to the two support rods 14.

[0024] Please see Figure 2 and Figure 5The extrusion structure includes four fixed frames 18 arranged in a matrix. The fixed frames 18 are slidably fixed to the support plate 9. The fixed frames 18 are slidably connected to the connecting rods 19, and the connecting rods 19 are fixed to the adjacent mold side plates 13. The fixed frames 18 are rotatably connected to the rotating parts 20. The rotating parts 20 and the adjacent connecting rods 19 are hinged to the first hinge 21. The four guide rods 3 are slidably connected to the sliding frame 22. The support frame 2 is fixed to two hydraulic cylinders 23. The telescopic ends of the hydraulic cylinders 23 are fixed to the sliding frame 22. The lower side of the sliding frame 22 is fixed to four fixed blocks 24 arranged in a matrix. The fixed blocks 24 and the adjacent rotating parts 20 are hinged to the second hinge 25.

[0025] The working principle of this utility model: The sheet metal is placed on the upper side of the four mold side plates 13, and the position of the sheet metal is adjusted. Then, the hydraulic cylinder 5 is started. The telescopic end of the hydraulic cylinder 5 drives the connecting plate 6 to slide down along the four guide rods 3. The connecting plate 6 drives the upper mold 8 to move down through the fixed platform 7. The upper mold 8 cooperates with the four mold side plates 13 to complete the stamping of the sheet metal. Initially, the four mold side plates 13 are in contact with each other and cooperate with the mold base plate 10 to form a complete lower mold. After the stamping is completed, the hydraulic cylinder 5 is controlled to move the upper mold upward and reset.

[0026] After the upper mold 8 is reset, the two hydraulic cylinders 23 are controlled first. The telescopic ends of the two hydraulic cylinders 23 drive the sliding frame 22 to slide upward along the four guide rods 3. The sliding frame 22 drives the rotating part 20 to rotate along the fixed frame 18 through the fixed block 24 and the hinge 25. When stamping the sheet metal, the hinge 21 and the connecting rod 19 are both in a horizontal state. During the stamping process, the hinge 21 limits the connecting rod 19, thereby providing support force for the mold side plate 13.

[0027] During the rotation of the rotating component 20, the rotating component 20 drives the connecting rod 19 to slide along the fixed frame 18 through the hinge 1 21. The connecting rod 19 drives the mold side plate 13 to move, and the mold side plate 13 drives the sliding rod 12 to slide along the fixed seat 11, thereby separating the four mold side plates 13 and no longer pressing the stamped shield. Then, the electric push rod 16 is activated. The telescopic end of the electric push rod 16 drives the support rod 14 to move upward through the connecting plate 2 17. The support rod 14 drives the ejector plate 15 to remove the stamped shield from the four mold side plates 13. Then, the shield is removed. Then, the hydraulic cylinder 5 and the electric push rod 16 are controlled to reset the ejector plate 15 and the sliding frame 22. After the sliding frame 22 is reset, the four mold side plates 13 return to the contact state.

[0028] Of all the solutions mentioned above, those involving the connection between two components can be selected according to the actual situation, such as welding, bolt and nut connection, bolt or screw connection, or other known connection methods, which will not be elaborated here. For all the fixed connections mentioned above, welding is preferred. Although embodiments of this utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this utility model. The scope of this utility model is defined by the appended claims and their equivalents.

Claims

1. A shielding cover stamping fixture, comprising a worktable (1), characterized in that: The workbench (1) is fixedly connected to a support frame (2), the support frame (2) is fixedly connected to four guide rods (3), the top of the four guide rods (3) is fixedly connected to a top plate (4), the top plate (4) is embedded with a hydraulic cylinder (5), the four guide rods (3) are slidably connected to a connecting plate (6), the connecting plate (6) is fixedly connected to the telescopic end of the hydraulic cylinder (5), the lower side of the connecting plate (6) is fixedly connected to a fixed platform (7), the fixed platform (7) is fixedly connected to an upper mold (8), the upper side of the workbench (1) is fixedly connected to a support plate (9), the upper side of the support plate (9) is fixedly connected to a mold base plate (10), the support plate (9) is fixedly connected to multiple fixed seats (11) arranged in a matrix, the fixed seats (11) are slidably connected to slide rods (12), and mold side plates (13) are fixedly connected between adjacent slide rods (12). The support frame (2) is provided with an ejection structure, and the support plate (9) is provided with an extrusion structure.

2. The shielding cover stamping fixture according to claim 1, characterized in that: The mold base plate (10) and the four mold side plates (13) together form the lower mold.

3. The shielding cover stamping fixture according to claim 2, characterized in that: The ejection structure includes two support rods (14), which are slidably connected to the mold base plate (10). The support rods (14) pass through the support frame (2) and the support plate (9), and an ejection plate (15) is fixed between the two support rods (14).

4. The shielding cover stamping fixture according to claim 3, characterized in that: The ejector plate (15) is located on the upper side of the mold base plate (10), and the size of the ejector plate (15) is the same as that of the mold base plate (10).

5. The shielding cover stamping fixture according to claim 4, characterized in that: An electric push rod (16) is fixedly connected to the upper side of the workbench (1), and a connecting plate (17) is fixedly connected to the telescopic end of the electric push rod (16). The connecting plate (17) is fixedly connected to two support rods (14).

6. The shielding cover stamping fixture according to claim 5, characterized in that: The extrusion structure includes four fixed frames (18) arranged in a matrix. The fixed frames (18) are slidably fixed to the support plate (9). The fixed frames (18) are slidably connected to connecting rods (19). The connecting rods (19) are fixed to the adjacent mold side plate (13).

7. The shielding cover stamping fixture according to claim 6, characterized in that: The fixed frame (18) is rotatably connected to a rotating component (20), and the rotating component (20) is hinged to the adjacent connecting rod (19) by a hinge component (21).

8. The shielding cover stamping fixture according to claim 7, characterized in that: A sliding frame (22) is slidably connected between the four guide rods (3). Two hydraulic cylinders (23) are fixedly connected to the support frame (2). The telescopic end of the hydraulic cylinder (23) is fixedly connected to the sliding frame (22). Four matrix-distributed fixing blocks (24) are fixedly connected to the lower side of the sliding frame (22). The fixing blocks (24) are hinged to the adjacent rotating parts (20) by a hinge part (25).

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