Punching machine for refrigerator sheet metal part

Abstract

The utility model relates to the technical field of punching equipment, in particular to a refrigerator sheet metal part punching machine which comprises a machining table, a supporting frame is fixedly connected to the surface of the machining table, a first air cylinder is fixedly connected to the surface of the supporting frame, and a punching plate is fixedly connected to a piston rod of the first air cylinder. A containing box is slidably connected to the surface of the machining table, a second air cylinder is fixedly connected to the surface of the machining table, a clamping plate is fixedly connected to a piston rod of the second air cylinder, a lower die is connected to the surface of the machining table in a clamped mode, and a hexagon bolt is connected to the surface of the lower die in a penetrating mode. According to the refrigerator sheet metal part punching machine, the lower die and the upper die are integrally designed, so that the lower die and the upper die only need to be mounted and dismounted once, the time occupied by mounting and dismounting of the refrigerator sheet metal part punching machine is shortened, and the punching efficiency of the refrigerator sheet metal part punching machine is improved.

Description

Technical Field

[0001] This utility model relates to the field of punching equipment technology, specifically a punching machine for refrigerator sheet metal parts. Background Technology

[0002] A refrigerator sheet metal punching machine is a specialized device used for high-precision punching of metal sheets during refrigerator manufacturing. It can efficiently and accurately punch holes of specific shapes and sizes, such as heat dissipation holes, mounting holes, and drainage holes, on the refrigerator shell, internal support, or other sheet metal components to meet the assembly, functional, and aesthetic requirements of the refrigerator.

[0003] Existing refrigerator sheet metal punching machines require different upper and lower dies to be changed when stamping different products. However, the upper and lower dies of existing refrigerator sheet metal punching machines are installed independently. Changing the upper and lower dies requires two operations, which greatly increases the time for changing the upper and lower dies, thereby reducing the production efficiency of refrigerator sheet metal punching machines. Utility Model Content

[0004] The purpose of this utility model is to provide a punching machine for refrigerator sheet metal parts, so as to solve the problem mentioned in the background art that when changing the upper and lower dies, two operations are required, which greatly increases the time for changing the upper and lower dies, thereby reducing the production efficiency of the punching machine for refrigerator sheet metal parts.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a punching machine for refrigerator sheet metal parts, comprising a processing table, a support frame fixedly connected to the surface of the processing table, a first cylinder fixedly connected to the surface of the support frame, a stamping plate fixedly connected to the piston rod of the first cylinder, a storage box slidably connected to the surface of the processing table, a second cylinder fixedly connected to the surface of the processing table, a clamping plate fixedly connected to the piston rod of the second cylinder, a lower die engaged with the surface of the processing table, a hexagonal bolt through a hole on the surface of the lower die, the hexagonal bolt threaded onto the surface of the processing table, a connecting block fixedly connected to the side of the lower die, a first guide rod fixedly connected to the surface of the connecting block, a return spring fixedly connected to the surface of the connecting block, a lifting block fixedly connected to the top of the return spring, the lifting block slidably connected to the surface of the first guide rod, an upper die fixedly connected to the surface of the lifting block, and a limit block fixedly connected to the surface of the lower die.

[0006] Preferably, a flattening mechanism is provided on one side of the processing table. The flattening mechanism includes a support side platform, which is fixedly connected to one side of the processing table. A second guide rod is fixedly connected to the surface of the support side platform. A connecting rod is fixedly connected to the surface of the stamping plate. A pressing plate is fixedly connected to the bottom of the connecting rod. The pressing plate is slidably connected to the surface of the second guide rod.

[0007] Preferably, the surface of the processing table is provided with a slot and a threaded hole. The hexagonal bolt fixes the lower mold to the slot of the processing table through the threaded hole. A sliding groove is provided on the surface of the processing table, and the storage box slides on the sliding groove of the processing table. The slot of the processing table is connected to the movable groove of the stamping plate.

[0008] Preferably, the stamping plate is directly above the upper die, the upper die is directly above the lower die, the upper die slides on the surface of the first guide rod via a lifting block, and the elastic force of the return spring acts on the upper die via the lifting block.

[0009] Preferably, the limiting block is L-shaped, the stamping plate and the upper die have the same surface area, the lower die has a larger surface area than the stamping plate, two sets of the first guide rods are provided, two sets of the second cylinders are also provided, and the two sets of second cylinders and two sets of first guide rods are obliquely symmetrically distributed on the surface of the processing table.

[0010] Preferably, the pressure plate slides and rises directly above the support side platform via a second guide rod, and the pressure plate and the upper mold are at the same horizontal height.

[0011] Preferably, the connecting rod is L-shaped, the first cylinder drives the stamping plate to rise and fall through the piston rod, and the stamping plate drives the pressing plate to rise and fall synchronously through the connecting rod.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] 1. This punching machine, by rotating the hexagonal bolt, can remove the restriction of the hexagonal bolt on the processing table. At this time, the lower die can be directly removed from the slot on the processing table. The lower die, through the connecting block, the first guide rod, the return spring and the lifting block, can bring the upper die out on the surface of the processing table together. The installation principle is the same. Through the integrated design of the lower die and the upper die, the lower die and the upper die only need to be installed and disassembled once, which reduces the time occupied by the installation and disassembly of the refrigerator sheet metal punching machine, thereby improving the punching efficiency of the refrigerator sheet metal punching machine.

[0014] 2. The pressing plate of the punching machine moves up and down on the surface of the support side platform via the second guide rod. The first cylinder drives the pressing plate to move up and down via the piston rod. The pressing plate drives the pressing plate to slide up and down on the surface of the support side platform via the connecting rod. The pressing plate can flatten the warped metal sheet on the surface of the support side platform, thereby reducing the error of the metal sheet during the punching process and improving the punching quality of the refrigerator sheet metal punching machine. Attached Figure Description

[0015] Figure 1 This is a three-dimensional front view of the structure of this utility model;

[0016] Figure 2 This is a side-view perspective view of the structure of this utility model;

[0017] Figure 3 This is a frontal perspective three-dimensional schematic diagram of the structure at the lower mold of this utility model;

[0018] Figure 4 This utility model Figure 2 Enlarged structural diagram at point A;

[0019] Figure 5 This is a frontal exploded view of the processing table structure of this utility model;

[0020] Figure 6 This utility model Figure 5 A magnified structural diagram at point B in the middle.

[0021] In the diagram: 1. Processing table; 11. Support frame; 12. First cylinder; 13. Stamping plate; 14. Storage box; 15. Second cylinder; 16. Clamping plate; 2. Lower die; 21. Hex bolt; 22. Connecting block; 23. First guide rod; 24. Return spring; 25. Lifting block; 26. Upper die; 27. Limiting block; 3. Support side platform; 31. Second guide rod; 32. Connecting rod; 33. Press plate. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Please see Figure 1-6 One embodiment provided by this utility model:

[0024] A punching machine for refrigerator sheet metal parts includes a processing table 1, a support frame 11 fixedly connected to the surface of the processing table 1, a first cylinder 12 fixedly connected to the surface of the support frame 11, a stamping plate 13 fixedly connected to the piston rod of the first cylinder 12, a storage box 14 slidably connected to the surface of the processing table 1, a second cylinder 15 fixedly connected to the surface of the processing table 1, a clamping plate 16 fixedly connected to the piston rod of the second cylinder 15, a lower die 2 engaged with the surface of the processing table 1, a hexagonal bolt 21 through-hole connected to the surface of the lower die 2, the hexagonal bolt 21 threadedly connected to the surface of the processing table 1, a connecting block 22 fixedly connected to the side of the lower die 2, a first guide rod 23 fixedly connected to the surface of the connecting block 22, a return spring 24 fixedly connected to the surface of the connecting block 22, and a top of the return spring 24 fixedly connected to... The lifting block 25 is slidably connected to the surface of the first guide rod 23. The upper mold 26 is fixedly connected to the surface of the lifting block 25, and the limit block 27 is fixedly connected to the surface of the lower mold 2. The refrigerator sheet metal punching machine fixes the lower mold 2 to the surface of the processing table 1 by hexagonal bolts 21. The lower mold 2 is integrated with the upper mold 26 through the connecting block 22, the first guide rod 23, the return spring 24 and the lifting block 25. At this time, the upper mold 26 is directly above the lower mold 2. During the descent of the stamping plate 13, the upper mold 26 is pushed down, and the upper mold 26 stamps the metal sheet on the lower mold 2. The lower mold 2 and the upper mold 26 can be installed and disassembled at the same time, which reduces the time occupied by the refrigerator sheet metal punching machine during installation and disassembly, thereby improving the stamping efficiency of the refrigerator sheet metal punching machine.

[0025] Furthermore, a flattening mechanism is provided on one side of the processing table 1. The flattening mechanism includes a support side platform 3, which is fixedly connected to one side of the processing table 1. A second guide rod 31 is fixedly connected to the surface of the support side platform 3. A connecting rod 32 is fixedly connected to the surface of the stamping plate 13. A pressing plate 33 is fixedly connected to the bottom of the connecting rod 32. The pressing plate 33 is slidably connected to the surface of the second guide rod 31. Some metal sheets have warped edges. This flattening mechanism can flatten the metal sheets, thereby reducing the error of the metal sheets during the stamping process and improving the stamping quality of the refrigerator sheet metal punching machine.

[0026] Furthermore, a slot is provided on the surface of the processing table 1, and a threaded hole is provided on the slot. The hex bolt 21 fixes the lower mold 2 to the slot of the processing table 1 through the threaded hole of the processing table 1. The lower mold 2 supports the upper mold 26 directly above the lower mold 2 through the connecting block 22, the first guide rod 23, the return spring 24 and the lifting block 25. A sliding groove is provided on the surface of the processing table 1, and the storage box 14 slides on the sliding groove of the processing table 1. The slot of the processing table 1 is connected to the movable groove of the stamping plate 13. The metal sheet is placed on the lower mold 2 for stamping. The stamped waste will fall directly from the through hole on the lower mold 2 onto the movable groove of the processing table 1, and the storage box 14 collects the waste on the movable groove of the processing table 1.

[0027] Furthermore, the stamping plate 13 is directly above the upper die 26, which is directly above the lower die 2. The upper die 26 slides on the surface of the first guide rod 23 via the lifting block 25. The elastic force of the return spring 24 acts on the upper die 26 through the lifting block 25, so that the upper die 26 can return to its original position after each stamping, making it convenient to continue to cooperate with the stamping plate 13 for stamping operations.

[0028] Furthermore, the limiting block 27 is L-shaped. The surface areas of the stamping plate 13 and the upper die 26 are the same, while the surface area of ​​the lower die 2 is larger than that of the stamping plate 13. Therefore, the surface area of ​​the lower die 2 is also larger than that of the upper die 26, ensuring that the stamping plate 13 and the upper die 26 will not conflict with other components during the descent. Two sets of first guide rods 23 and two sets of second cylinders 15 are provided. The two sets of second cylinders 15 and the two sets of first guide rods 23 are obliquely symmetrically distributed on the surface of the processing table 1. The second cylinders 15 move the clamping plate 16 through the piston rod. The two sets of clamping plates 16 cooperate with the upper limiting block 27 to restrict the metal sheet on the surface of the lower die 2.

[0029] Furthermore, the pressure plate 33 slides and rises directly above the support platform 3 via the second guide rod 31. The pressure plate 33 and the upper mold 26 are at the same horizontal height. Two sets of the second guide rod 31 are provided to ensure that the pressure plate 33 slides and rises and falls horizontally and stably on the surface of the support platform 3.

[0030] Furthermore, the connecting rod 32 is L-shaped. The first cylinder 12 drives the stamping plate 13 to rise and fall through the piston rod. The stamping plate 13 drives the pressing plate 33 to rise and fall synchronously through the connecting rod 32, so that during the stamping process, the pressing plate 33 can flatten the sheet metal on the support side platform 3.

[0031] Working principle: The first cylinder 12 drives the stamping plate 13 to descend via the piston rod. The upper die 26 rises and falls on the surface of the first guide rod 23 via the lifting block 25. The stamping plate 13 drives the upper die 26 to descend onto the lower die 2, so that the upper die 26 stamps the metal sheet on the lower die 2. After stamping, the return spring 24 returns the upper die 26 to its original position by its elasticity, facilitating the next stamping. When replacing the lower die 2 and the upper die 26, simply rotate the hexagonal bolt 21 to remove the hexagonal bolt 21 from the lower die 2. Due to the limitations on the processing table 1, the lower die 2 is directly removed from the slot on the processing table 1. The lower die 2, through the connecting block 22, the first guide rod 23, the return spring 24, and the lifting block 25, can bring the upper die 26 out on the surface of the processing table 1 together. The installation principle is the same. Through the integrated design of the lower die 2 and the upper die 26, the lower die 2 and the upper die 26 only need to be installed and disassembled once, which reduces the time occupied by the installation and disassembly of the refrigerator sheet metal punching machine, thereby improving the punching efficiency of the refrigerator sheet metal punching machine.

[0032] The pressing plate 33 moves up and down on the surface of the support side platform 3 via the second guide rod 31. The first cylinder 12 drives the stamping plate 13 to move up and down via the piston rod. The stamping plate 13 drives the pressing plate 33 to slide up and down on the surface of the support side platform 3 via the connecting rod 32. The pressing plate 33 can flatten the warped metal sheet on the surface of the support side platform 3, thereby reducing the error of the metal sheet in the stamping process and improving the stamping quality of the refrigerator sheet metal punching machine.

[0033] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A punching machine for refrigerator sheet metal parts, characterized in that: The system includes a processing table (1), a support frame (11) fixedly connected to the surface of the processing table (1), a first cylinder (12) fixedly connected to the surface of the support frame (11), a stamping plate (13) fixedly connected to the piston rod of the first cylinder (12), a storage box (14) slidably connected to the surface of the processing table (1), a second cylinder (15) fixedly connected to the surface of the processing table (1), a clamping plate (16) fixedly connected to the piston rod of the second cylinder (15), a lower mold (2) engaged with the surface of the processing table (1), and hexagonal bolts perforated and connected to the surface of the lower mold (2). (21) The hexagonal bolt (21) is threaded onto the surface of the processing table (1). A connecting block (22) is fixedly connected to the side of the lower mold (2). A first guide rod (23) is fixedly connected to the surface of the connecting block (22). A return spring (24) is fixedly connected to the surface of the connecting block (22). A lifting block (25) is fixedly connected to the top of the return spring (24). The lifting block (25) is slidably connected to the surface of the first guide rod (23). An upper mold (26) is fixedly connected to the surface of the lifting block (25). A limit block (27) is fixedly connected to the surface of the lower mold (2).

2. The refrigerator sheet metal punching machine according to claim 1, characterized in that: A flattening mechanism is provided on one side of the processing table (1). The flattening mechanism includes a support side platform (3). The support side platform (3) is fixedly connected to one side of the processing table (1). A second guide rod (31) is fixedly connected to the surface of the support side platform (3). A connecting rod (32) is fixedly connected to the surface of the stamping plate (13). A pressing plate (33) is fixedly connected to the bottom of the connecting rod (32). The pressing plate (33) is slidably connected to the surface of the second guide rod (31).

3. A punching machine for refrigerator sheet metal parts according to claim 1, characterized in that: The surface of the processing table (1) is provided with a slot and a threaded hole. The hexagonal bolt (21) fixes the lower mold (2) to the slot of the processing table (1) through the threaded hole of the processing table (1). A sliding groove is provided on the surface of the processing table (1). The storage box (14) slides on the sliding groove of the processing table (1). The slot of the processing table (1) is connected to the movable groove of the stamping plate (13).

4. A punching machine for refrigerator sheet metal parts according to claim 1, characterized in that: The stamping plate (13) is directly above the upper die (26), which is directly above the lower die (2). The upper die (26) slides on the surface of the first guide rod (23) via the lifting block (25), and the elastic force of the return spring (24) acts on the upper die (26) via the lifting block (25).

5. A punching machine for refrigerator sheet metal parts according to claim 1, characterized in that: The limiting block (27) is L-shaped. The stamping plate (13) and the upper die (26) have the same surface area. The lower die (2) is larger than the surface area of ​​the stamping plate (13). There are two sets of the first guide rod (23) and two sets of the second cylinder (15). The two sets of second cylinders (15) and the two sets of first guide rods (23) are obliquely symmetrically distributed on the surface of the processing table (1).

6. A punching machine for refrigerator sheet metal parts according to claim 2, characterized in that: The pressure plate (33) slides and rises directly above the support platform (3) via the second guide rod (31), and the pressure plate (33) and the upper mold (26) are at the same horizontal height.

7. A punching machine for refrigerator sheet metal parts according to claim 2, characterized in that: The connecting rod (32) is L-shaped. The first cylinder (12) drives the stamping plate (13) to rise and fall through the piston rod. The stamping plate (13) drives the pressing plate (33) to rise and fall synchronously through the connecting rod (32).

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