Plate stamping device and application in furniture production

Abstract

The invention belongs to the technical field of metal stamping, and discloses a plate stamping device and application in furniture production.The plate stamping device comprises a bearing assembly, the bearing assembly is connected with a hydraulic assembly, one end of the hydraulic assembly is connected with a pressing assembly, the bearing assembly is further connected with a bearing part, and the bearing part is connected with a pressing assembly; the bearing part is connected with a stamping die, the pressing assembly corresponds to the stamping die in position, the stamping die and the pressed part are matched with each other, it is ensured that in the stamping machining process of a plate, the position of the plate does not deviate, and by adjusting and controlling the angle of the pressed plate, the plate can be conveniently punched. Stamping machining of planes and included angles of plates is achieved, meanwhile, after stamping, the plates can be rapidly taken out of the stamping die through the jacking blocks, and the stamping efficiency of the plates is improved.

Description

Technical Field

[0001] The invention belongs to the technical field of metal stamping, in particular to a plate stamping device and its application in furniture production. Background Art

[0002] The application of metal sheets in furniture manufacturing is becoming more and more widespread. Metal sheet furniture has the characteristics of stable structure, durability and easy maintenance, and is especially suitable for modern minimalist home decoration. Through stamping technology, metal sheets can be processed into the required shape and size at one time, which has the advantages of high efficiency and low cost, and meets the requirements of green production.

[0003] A Chinese patent application with application number CN202410216913.0 discloses a metal sheet furniture stamping and forming device, comprising a stamping frame, a working platform fixedly mounted on the stamping frame, a mold one being arranged on the working platform, and also comprising: a multifunctional square frame, the multifunctional square frame being connected to the stamping frame, and a plurality of positioning suction cups being arranged at the bottom end of the multifunctional square frame; and a stamping and forming mechanism, the stamping and forming mechanism being respectively connected to the stamping frame and the multifunctional square frame, and being communicated with the positioning suction cups, wherein the stamping and forming mechanism comprises a lifting drive assembly, a mold two, a guide control assembly and an adsorption control assembly; the metal sheet furniture stamping and forming device in the above scheme avoids danger caused by workers putting their hands into the stamping area, thereby improving the efficiency of the stamping work and the safety performance of the equipment, but the above content only describes the relevant content of how to quickly remove the sheet, and does not state the sheet angle processing method.

[0004] During the stamping process of the sheet metal, depending on the use requirements of the sheet metal, it is usually necessary to stamp it into a flat shape or a state with an angle. However, when stamping the sheets in the two states, different stamping equipment is required to meet the stamping requirements, which greatly increases the production cost.

[0005] Therefore, in order to solve the above technical problems, the present invention proposes a plate punching device and its application in furniture production. Summary of the invention

[0006] The purpose of the present invention is to solve the above problems. The present invention provides a plate punching device and its application in furniture production, which has the advantages of rapid mold taking and adaptability to different punching requirements.

[0007] To achieve the above-mentioned object, the present invention provides the following technical solutions: a plate stamping device, comprising a bearing assembly, a hydraulic assembly is connected to the bearing assembly, one end of the hydraulic assembly is connected to a pressing assembly, the bearing assembly is also connected to a bearing part, a stamping die is connected to the bearing part, and the pressing assembly corresponds to the position of the stamping die; The stamping die comprises a supporting part, a stamping cavity is formed at one end of the supporting part close to the pressing assembly, a lifting block is movably provided at one end of the supporting part away from the bearing part, a pressure-bearing part is connected in the stamping cavity, and the lifting block is located between the pressure-bearing parts.

[0008] Preferably, the pressure-bearing part includes two pressure plates, and the two pressure plates are symmetrically distributed in the stamping cavity with the lifting block as the symmetry center. A plurality of hinge blocks are connected to one end of the two pressure plates away from the lifting block, and a telescopic rod is connected to one end of the plurality of hinge blocks away from the lifting block.

[0009] Preferably, the bearing assembly includes a fuselage, the fuselage is connected to a controller, the controller can control electronic components on the fuselage, and the bearing part and the hydraulic assembly are both connected to the fuselage.

[0010] Preferably, a through hole is penetrated through the pressure plate, an auxiliary component is movably arranged in the through hole, and the auxiliary component includes a lifting rod, one end of the lifting rod is connected to the support part, and the end of the lifting rod away from the support part is connected to a connecting column.

[0011] Preferably, movable plates are rotatably provided at one end of the two pressure plates opposite to each other, the height of the two movable plates is the same as the height of the connecting column, and the two movable plates can cover the lifting block.

[0012] Preferably, the bearing portion comprises a limiting plate, one end of the limiting plate is connected to the fuselage, and one end of the limiting plate away from the fuselage is provided with a limiting groove, and the supporting portion is clamped on the limiting groove.

[0013] Preferably, a sliding block is connected to one end of the supporting portion away from the pressure receiving portion, and the sliding block is engaged with the limiting groove.

[0014] Preferably, the hydraulic assembly comprises a connecting member, one end of the connecting member is connected to the bearing assembly, and the other end away from the bearing assembly is connected to the pressing assembly, and a hydraulic rod is provided through the connecting member.

[0015] Preferably, the pressing assembly includes a load-bearing plate, one end of which is connected to the connecting member, two pressing plates are movably provided on the load-bearing plate, and the distance between the two pressing plates and the load-bearing plate can be adjusted.

[0016] An application in furniture production is realized by utilizing a plate punching device.

[0017] Compared with the prior art, the present invention has the following beneficial effects: 1. Through the cooperation between the set stamping die and the pressure-bearing part, it is ensured that the plate will not be displaced during the stamping process, and by adjusting the angle of the pressure plate, the stamping processing of the plane and angle of the plate can be realized. At the same time, after stamping, the lifting block can be used to quickly remove the plate from the stamping die, thereby improving the stamping efficiency of the plate.

[0018] 2. Through the cooperation between the auxiliary components and the lifting blocks, the stamped sheet can be quickly taken out of the stamping die, and the synchronous action of the auxiliary components and the lifting blocks can prevent the sheet from getting stuck in the stamping cavity, and reduce the deformation of the sheet when it is taken out after stamping. At the same time, the auxiliary components can assist in the angle change of the pressure plate, improve the angle adjustment rate of the pressure plate, and enhance the supporting strength of the pressure plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the three-dimensional structure of the overall device of the present invention; Figure 2 It is a schematic diagram of the connection structure of the punching die of the present invention in the sheet metal punching device; Figure 3 It is a schematic diagram of the three-dimensional structure of the stamping die of the present invention; Figure 4 It is a schematic diagram of the cross-sectional structure of the stamping die of the present invention; Figure 5 It is a schematic diagram of the three-dimensional structure of the pressing assembly of the present invention; Figure 6 is a schematic cross-sectional structure diagram of a pressing assembly of the present invention; Figure 7 It is a schematic diagram of the connection structure of the hinge block of the present invention; Figure 8 It is a schematic diagram of the cross-sectional structure of the hinge block of the present invention; Fig. 9 for Figure 4 Schematic diagram of the enlarged structure of part A.

[0020] Description of the drawings: 1. Load-bearing component; 101. Fuselage; 102. Controller; 2. Hydraulic component; 201. Connector; 202. Hydraulic rod; 3. Pressing component; 301. Load-bearing plate; 302. Pressing plate; 4. Load-bearing part; 401. Limiting plate; 402. Limiting groove; 5. Stamping die; 501. Support part; 5011. Stamping cavity; 502. Lifting block; 5021. Lifting rod; 503. Slider; 6. Pressure-bearing part; 601. Pressure-bearing plate; 6011. Through hole; 602. Articulated block; 603. Movable plate; 7. Telescopic rod; 8. Auxiliary component; 801. Connecting column; 802. Lifting rod. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0022] like Figure 1-Figure 9 As shown, a sheet metal stamping device includes a bearing component 1 for connecting and fixing various components of the device, the bearing component 1 is connected with a hydraulic component 2 for controlling the movement of a pressing component 3, one end of the hydraulic component 2 is connected with a pressing component 3, the pressing component 3 is driven to move by the hydraulic component 2, so that the pressing component 3 performs stamping and forming on the sheet metal, the bearing component 1 is also connected with a bearing part 4 for bearing a pressing force, the bearing part 4 is connected with a stamping die 5, the sheet metal is placed in the stamping die 5, the pressing component 3 is used to process the sheet metal in the stamping die 5, and the positions of the pressing component 3 and the stamping die 5 correspond, when the device is used, the sheet metal is first placed in the stamping die 5, and then the pressing component 3 is driven to move by the hydraulic component 2, so that the pressing component 3 and the sheet metal in the stamping die 5 are stamped, so as to ensure that the sheet metal stamping is completed.

[0023] The stamping die 5 includes a support portion 501 for limiting the edge of the material. A stamping cavity 5011 is provided at one end of the support portion 501 close to the pressing component 3. The plate to be stamped is placed in the stamping cavity 5011. A lifting block 502 is movably provided at one end of the support portion 501 away from the bearing portion 4. A lifting rod 5021 is connected to one end of the lifting block 502 close to the limiting plate 401. The lifting block 502 is driven to move by the lifting rod 5021, so that the stamped plate can be ejected, which is convenient for the stamped plate. The plate is taken out, wherein the lifting block 502 is located in the middle position of the stamping cavity 5011, and a pressure-bearing part 6 is connected to the stamping cavity 5011, and the lifting block 502 is located between the pressure-bearing parts 6. The shape of the pressure-bearing part 6 is the shape of the plate after stamping, and the plate to be pressed directly contacts the pressure-bearing part 6 in the stamping cavity 5011. After the pressing component 3 is pressed, the lifting block 502 is used to eject the plate on the pressure-bearing part 6 to avoid the plate from contacting the edge of the stamping cavity 5011, thereby ensuring that the plate is easily taken out.

[0024] like Figure 3-Figure 4As shown, further, in order to ensure that the sheet material forms the material and shape required in furniture production after stamping, the pressure-bearing part 6 includes two pressure-bearing plates 601 for stamping the sheet material, and the two pressure-bearing plates 601 are symmetrically distributed in the stamping cavity 5011 with the lifting block 502 as the symmetry center. The ends of the two pressure-bearing plates 601 away from the lifting block 502 are rotatably connected with multiple hinge blocks 602, and the ends of the multiple hinge blocks 602 away from the lifting block 502 are all connected with telescopic rods 7. When the sheet material needs to be stamped into a flat state during the stamping process, the length of the telescopic rod 7 is maintained at the shortest state. That is, the two pressure plates 601 are in a horizontal state. As the plates are pressed by the pressing component 3, the plates formed by stamping will also be in a horizontal state. When the plates need to be stamped into a bent state, the length of the telescopic rod 7 is controlled to extend, thereby driving the hinge block 602 to move in the stamping cavity 5011, and driving the pressure plates 601 to move along with the position of the hinge block 602, causing the angle between the pressure plates 601 and the bottom surface of the stamping cavity 5011 to change, so that the angle between the pressure plates 601 forms the angle required for stamping, and then the pressing component 3 is used to stamp the plates on the pressure plates 601.

[0025] It should be noted that the materials of the two pressure plates 601 will not be damaged during the stamping process of the pressing component 3 .

[0026] Furthermore, the bearing assembly 1 includes a fuselage 101, to which a controller 102 is connected. The controller 102 can control electronic components on the fuselage 101. The bearing part 4 and the hydraulic assembly 2 are both connected to the fuselage 101 to ensure that the plate can be stamped normally.

[0027] Furthermore, in order to cooperate with the lifting block 502 to push out the stamped plate, and at the same time assist the hinge block 602 to adjust the angle of the pressure plate 601, a through hole 6011 is penetrated and opened on the pressure plate 601, and an auxiliary component 8 for lifting the plate is movably arranged in the through hole 6011, wherein the auxiliary component 8 comprises a lifting rod 802, and the height of the connecting column 801 can be adjusted by changing the length of the lifting rod 802, one end of the lifting rod 802 is connected to the support portion 501, and the end of the lifting rod 802 away from the support portion 501 is connected to the connecting column 801. When in use, it is necessary When forming a stamped plate in a horizontal state, the plate is first placed on the connecting column 801. At this time, the plate does not conflict with the pressure plate 601. Then, as the pressing component 3 contacts the plate in the stamping cavity 5011, the connecting column 801 will be driven to move, so that the plate contacts the pressure plate 601 and is stamped. When the stamping of the plate is completed, the pressing component 3 is separated from the surface of the plate. At this time, the connecting column 801 rebounds quickly under the action of the lifting rod 802, and the rebound rate is the same as the rebound rate of the lifting block 502, thereby lifting the stamped plate to facilitate the user to take out the stamped plate.

[0028] When the angle between the pressure plate 601 and the stamping die 5 changes, the lifting rod 802 is first controlled to drive the connecting column 801 to move, so that the connecting column 801 moves out of the through hole 6011 and is hidden in the stamping die 5. At this time, the telescopic rod 7 drives the pressure plate 601 to move, so that the position of the through hole 6011 and the connecting column 801 is offset, and then the length of the lifting rod 802 is controlled to extend, so that the connecting column 801 contacts the pressure plate 601 and drives the angle of the pressure plate 601 to change, so as to quickly adjust the angle of the pressure plate 601. At the same time, when the angle of the pressure plate 601 is adjusted to the angle required for stamping, the connection column 801 and the lifting rod 802 cooperate with each other to maintain the angle of the pressure plate 601 stable, ensuring that the angle of the pressure plate 601 does not change when the pressing component 3 is stamped.

[0029] It should be noted that a jet assembly can be connected to the pressure plate 601. On the one hand, it can be used to assist in quickly separating the plate from the pressure plate 601. On the other hand, it can be used to cool the plate after stamping and the pressure plate 601 to increase the service life of the plate. This connection scheme is a prior art and will not be elaborated on here.

[0030] like Fig. 9 As shown, further, in order to prevent the plate from bending in the middle part when it is hit by the connecting column 801, thereby affecting the accuracy of the pressing component 3 during stamping, a movable plate 603 is rotatably provided at one end of the two pressure plates 601 opposite to each other, and the height of the two movable plates 603 is the same as the height of the connecting column 801. When the pressing component 3 is in the process of pressing, the angle of the movable plate 603 will change, so that the plane of the movable plate 603 is flush with the plane of the pressure plate 601, and the two movable plates 603 can cover the lifting block 502. When the plate is in contact with the connecting column 801, the movable plate 603 will also be in contact with the plate. During the stamping process, as the pressing component 3 is stamped, the movable plate 603 will be driven to cover the lifting block 502 to ensure the normal stamping of the plate. At the same time, when the angle of the pressure plate 601 is adjusted, the movable plate 603 can rotate with the deflection angle of the pressure plate 601, so that the plane of the movable plate 603 and the pressure plate 601 are on the same inclined plane.

[0031] Furthermore, in order to ensure that the pressing assembly 3 does not cause damage to the fuselage 101, the supporting part 4 includes a limiting plate 401 for fixing the stamping die 5, wherein one end of the limiting plate 401 is connected to the fuselage 101, and a limiting groove 402 is provided at the end of the limiting plate 401 away from the fuselage 101, and the supporting part 501 is clamped on the limiting groove 402, thereby ensuring the safety of the stamping die 5 during use.

[0032] Furthermore, a slider 503 is connected to one end of the support portion 501 away from the pressure portion 6, and the slider 503 is engaged with the limiting groove 402. At the same time, the hydraulic component 2 includes a connecting piece 201, one end of the connecting piece 201 is connected to the load-bearing component 1, and the end away from the load-bearing component 1 is connected to the pressing component 3. A hydraulic rod 202 runs through the connecting piece 201, and the pressing component 3 is driven to move by the hydraulic rod 202, so that the pressing component 3 can effectively stamp the sheet material, thereby ensuring that the formed sheet material meets the stamping requirements.

[0033] When the stamping die 5 needs to be replaced, the slider 503 is moved out of the limiting groove 402 to release the restriction of the limiting groove 402 on the stamping die 5 , thereby realizing the replacement of the stamping die 5 .

[0034] Furthermore, in order to be able to stamp plates with different stamping standards, the pressing component 3 includes a load-bearing plate 301, one end of which is connected to the connecting piece 201, and two pressing plates 302 are movably provided on the load-bearing plate 301, and the distance between the two pressing plates 302 and the load-bearing plate 301 can be adjusted. In order to facilitate the adjustment of the position of the pressing plates 302, a compression rod for adjusting the distance is connected between the two pressing plates 302 and the load-bearing plate 301 to ensure the normal operation of the pressing plates 302. When it is necessary to perform flat stamping on the plate, the pressing plate 302 is flush with the pressing plane of the load-bearing plate 301 to ensure the normal operation of the pressing component 3. When it is necessary to perform angle stamping on the plate, the position of the pressing plate 302 is controlled to move so that the end face of the pressing plate 302 is close to the pressure-bearing part 6. As the hydraulic component 2 moves, the pressing plate 302 is driven to contact the plate on the pressure-bearing part 6 to achieve stamping of the angle of the plate.

[0035] It should be noted that when the end surfaces of the pressing plate 302 and the bearing plate 301 are flush, the distance between the pressing plate 302 and the bearing plate 301 will not interfere with the stamping of the plate, thereby ensuring the efficiency of the stamping of the plate.

[0036] During operation, the sheet to be stamped is placed on the stamping die 5, and the position angle of the pressure-receiving part 6 is adjusted according to the shape of the sheet to be stamped, to ensure that the sheet after stamping meets the usage requirements. Then, the hydraulic component 2 is controlled by the controller 102 to drive the pressing component 3 to move, so as to cause the pressing component 3 and the sheet on the pressure-receiving part 6 to be stamped, and then the auxiliary component 8 is used to pop the sheet out of the stamping die 5 to facilitate the removal of the stamped sheet.

[0037] When it is necessary to punch a plate in a planar state, the length of the telescopic rod 7 is maintained unchanged, the height of the connecting column 801 is flush with the height of the movable plate 603, and the plate to be punched is placed in the punching cavity 5011, so that the plate contacts the end faces of the connecting column 801 and the movable plate 603, and the stability of the plate in the punching cavity 5011 is maintained. Then, the length of the hydraulic rod 202 and the connecting piece 201 is controlled to extend, and the pressing assembly 3 is driven to move and contact the plate in the punching cavity 5011, and the plate is driven to move in the punching cavity 5011, so that the movable plate 603 moves toward the end close to the lifting block 502, and at the same time, the connecting column 801 moves toward the end close to the lifting rod 802, so that the plate contacts the pressure plate 601 stably and as the load-bearing plate 301 and the pressing plate 302 continue to move, the punching of the plate is completed.

[0038] When the plate is stamped, the connecting piece 201 and the hydraulic rod 202 drive the load-bearing plate 301 and the pressing plate 302 to reset and stop contacting the plate. At this time, under the action of the lifting block 502 and the auxiliary component 8, the plate is ejected from the pressure plate 601, that is, the lifting rod 5021 drives the lifting block 502 to move toward the side close to the pressing component 3, and at the same time, the lifting rod 802 drives the connecting column 801 to move toward the side close to the pressing component 3, and contacts with the stamped plate, and ejects the plate from the pressure plate 601, so that the user can take it easily.

[0039] When it is necessary to stamp the plate at an inclined angle, first control the lifting rod 802 to shorten, so that the connecting column 801 is disengaged from the through hole 6011, and the position of the connecting column 801 is maintained unchanged, and then the length of the telescopic rod 7 is controlled to extend, driving the hinge block 602 to move, so that the pressure plate 601 moves toward one end close to each other. When the position of the through hole 6011 is offset from the position of the connecting column 801, the position of the connecting column 801 is driven by the lifting rod 802 to move and contact the pressure plate 601, so that the side of the pressure plate 601 close to the lifting block 502 is lifted to form an inclined angle. At the same time, during the rotation of the pressure plate 601, the movable plate 603 and the pressure plate 601 are deflected, so that the pressure plate 601 and the movable plate 603 are on the same inclined plane, and in use, the angle between the two pressure plates 601 is adjusted according to the angle required for stamping the plate.

[0040] When the angle of the plate required for stamping is large, the extension length of the telescopic rod 7 is short, so as to maintain a large angle between the two pressure plates 601. When the angle of the plate required for stamping is small, the extension length of the telescopic rod 7 is controlled to become longer, so as to control the angle between the two pressure plates 601 to decrease, thereby regulating the size of the stamping angle of the plate. At the same time, the auxiliary component 8 is used to contact the end face of the pressure plate 601 to ensure that the deflection angle of the pressure plate 601 is stable. If necessary, the length of the lifting rod 5021 can be controlled to extend to drive the lifting block 502 to contact the movable plate 603, so as to ensure that the position of the movable plate 603 does not change under the stamping action of the pressing component 3.

[0041] When the position of the pressure plate 601 is adjusted to the required stamping angle, and the plate required for stamping is placed in the stamping cavity 5011, the controller 102 controls the position offset between the two pressing plates 302 and the load-bearing plate 301, that is, the end face of one side corresponding to the position of the stamping cavity 5011, and the end faces of the two pressing plates 302 are closer to the stamping die 5 than the end face of the load-bearing plate 301, and then after the position of the pressing plate 302 is fixed, the hydraulic component 2 drives the pressing plate 302 to the side of the plate with the load-bearing plate 301, and the pressing plate 302 first contacts the plate, driving the plate to bend on the pressure plate 601 before the load-bearing plate 301 contacts the plate, thereby realizing the stamping forming of the angle of the plate, and because the edge of the plate is not in close contact with the pressure plate 601, when the angle on the plate is stamped, there is no need for the auxiliary component 8 and the lifting block 502 to eject the plate.

[0042] A sheet metal stamping device is used in furniture production. In the process of furniture production, it is sometimes necessary to stamp metal sheets into the required shape and thickness. At this time, the sheet metal stamping device is needed to quickly process the sheets required for furniture production to improve the production efficiency of furniture production.

[0043] It should be noted that, in this article, the terms "comprises", "includes" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or apparatus that includes a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or apparatus.

[0044] 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 sheet metal stamping device, comprising a bearing assembly (1), characterized in that: The bearing assembly (1) is connected to a hydraulic assembly (2), one end of the hydraulic assembly (2) is connected to a pressing assembly (3), the bearing assembly (1) is also connected to a bearing portion (4), the bearing portion (4) is connected to a stamping die (5), and the pressing assembly (3) corresponds to the position of the stamping die (5); The stamping die (5) comprises a support portion (501), a stamping cavity (5011) is provided at one end of the support portion (501) close to the pressing assembly (3), a lifting block (502) is movably provided at one end of the support portion (501) away from the bearing portion (4), a pressure-bearing portion (6) is connected to the inside of the stamping cavity (5011), and the lifting block (502) is located between the pressure-bearing portions (6).

2. The sheet metal punching device according to claim 1, characterized in that: The pressure-bearing portion (6) comprises two pressure-bearing plates (601), and the two pressure-bearing plates (601) are symmetrically distributed in the stamping cavity (5011) with the lifting block (502) as the symmetry center. One end of the two pressure-bearing plates (601) away from the lifting block (502) is connected to a plurality of hinge blocks (602), and one end of the plurality of hinge blocks (602) away from the lifting block (502) is connected to a telescopic rod (7).

3. The sheet metal stamping device according to claim 1, characterized in that: The bearing assembly (1) comprises a fuselage (101), the fuselage (101) being connected to a controller (102), the controller (102) being capable of controlling electronic components on the fuselage (101), and the bearing portion (4) and the hydraulic assembly (2) being connected to the fuselage (101).

4. The sheet metal stamping device according to claim 2, characterized in that: A through hole (6011) is formed through the pressure plate (601), an auxiliary component (8) is movably provided in the through hole (6011), and the auxiliary component (8) comprises a lifting rod (802), one end of the lifting rod (802) is connected to the support portion (501), and one end of the lifting rod (802) away from the support portion (501) is connected to a connecting column (801).

5. The sheet metal punching device according to claim 4, characterized in that: A movable plate (603) is rotatably provided at one end of the two pressure plates (601) opposite to each other, the height of the two movable plates (603) is the same as the height of the connecting column (801), and the two movable plates (603) can cover the lifting block (502).

6. The sheet metal punching device according to claim 3, characterized in that: The bearing portion (4) comprises a limiting plate (401), one end of the limiting plate (401) is connected to the fuselage (101), one end of the limiting plate (401) away from the fuselage (101) is provided with a limiting groove (402), and the supporting portion (501) is clamped on the limiting groove (402).

7. The sheet metal punching device according to claim 6, characterized in that: A sliding block (503) is connected to one end of the support portion (501) away from the pressure-bearing portion (6), and the sliding block (503) is mutually engaged with the limiting groove (402).

8. The sheet metal punching device according to claim 1, characterized in that: The hydraulic assembly (2) comprises a connecting member (201), one end of the connecting member (201) being connected to the bearing assembly (1), and the end away from the bearing assembly (1) being connected to the pressing assembly (3), and a hydraulic rod (202) penetrating the connecting member (201).

9. The sheet metal punching device according to claim 8, characterized in that: The pressing assembly (3) comprises a load-bearing plate (301), one end of the load-bearing plate (301) being connected to the connecting member (201), two pressing plates (302) being movably provided on the load-bearing plate (301), and the distance between the two pressing plates (302) and the load-bearing plate (301) being adjustable.

10. An application of the sheet metal stamping device according to any one of claims 1 to 9 in furniture production.

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