A stainless steel machine cabinet sheet metal forming machine

Abstract

The application discloses a stainless steel machine case cabinet sheet metal forming machine and belongs to the field of machine case cabinet forming, which comprises a base and a supporting plate, the supporting plate is arranged at the upper end of the base, the upper end of the base is fixedly connected with a mold, the upper end of the mold is provided with a mold groove, the inside of the supporting plate is fixedly connected with hydraulic rods on both sides, in the first stage, the hydraulic rods drive the push plate to preliminarily press and bend the sheet metal, and the basic shape is formed. In the second stage, when the hydraulic rods continue to go down, the horizontal plate overcomes the thrust of the first spring, converts the pressure into horizontal force through the push rod, forces the push plate to move along the horizontal direction, and applies an additional horizontal pressure to the already formed bending part of the sheet metal. The additional pressure can effectively offset the stress inside the material, make the plastic deformation more thorough, thereby significantly reduce the rebound amount caused by the material elastic recovery after forming, and ensure that the finally formed sheet metal part is accurate in size and stable in shape.

Description

Technical Field

[0001] This invention relates to the field of chassis and cabinet forming, and more specifically, to a stainless steel chassis and cabinet sheet metal forming machine. Background Technology

[0002] In the field of sheet metal processing, the manufacturing of stainless steel chassis, cabinets, and other products typically involves complex bending, stamping, and other forming processes. Traditional or common sheet metal forming machinery, especially pressing equipment used to form the side wall folds or reinforcing ribs of chassis and cabinets, often faces the following technical challenges in actual production applications: Stainless steel and other sheet metals have a high modulus of elasticity, resulting in significant springback after stamping and bending. Traditional single-press forming processes struggle to precisely control the final forming angle, often requiring experience-based die angle compensation or additional correction steps. This not only increases process complexity but also impacts production efficiency and dimensional accuracy consistency. Existing equipment typically only provides vertical pressing force, limiting its ability to adjust the stress distribution of the bent material.

[0003] For sheet metal parts with large forming depths or complex structures, "jamming" can easily occur between the workpiece and the mold cavity after forming due to internal stress caused by material deformation, surface adsorption, or microscopic interlocking. Forcibly demolding may result in scratches, deformation, or even damage to the mold surface. Conventional ejection mechanisms are often inadequate in handling such situations, requiring manual intervention, which poses safety risks and is inefficient. Summary of the Invention

[0004] To address the problems existing in the prior art, the purpose of this invention is to provide a stainless steel chassis and cabinet sheet metal forming machine that can effectively prevent the springback of the sheet metal by applying greater pressure to the bending area.

[0005] To solve the above problems, the present invention adopts the following technical solution.

[0006] A stainless steel chassis and cabinet sheet metal forming machine includes a base and a support plate. The support plate is disposed on the upper end of the base. A mold is fixedly connected to the upper end of the base. A mold groove is provided on the upper end of the mold. Hydraulic rods are fixedly connected to both sides of the inside of the support plate. A forming component is provided at the output end of the hydraulic rods. The forming assembly includes a horizontal plate fixedly connected to the lower end of a hydraulic rod. A movable shell is slidably connected to the lower outer side of the horizontal plate. Support blocks are fixedly connected to the inner walls of all four sides of the movable shell. A first spring is fixedly connected to the upper end of the support block. The upper end of the first spring is fixedly connected to the lower end of the horizontal plate. A push rod is rotatably connected to the lower end of the horizontal plate. A push plate is rotatably connected to the lower end of the push rod. A first sliding groove is formed on one side of the upper end of the push plate. A vertical block is slidably connected inside the first sliding groove. The upper end of the vertical block is fixedly connected to the lower end of the support block.

[0007] Preferably, a vertical rod is fixedly connected to the upper end of the support block, the upper end of the vertical rod is slidably connected to the lower end of the horizontal plate, and the first spring is sleeved on the outside of the vertical rod.

[0008] Preferably, the lower end of the cross plate has a groove that matches the first spring.

[0009] Preferably, a limiting rod is fixedly connected inside the first groove, and the limiting rod passes through the vertical block and is slidably connected to the vertical block.

[0010] Preferably, the outer side of the movable shell is inclined, the base has a cavity inside, a piston plate is slidably connected inside the cavity, a rectangular rod is fixedly connected to the upper end of the piston plate, the rectangular rod is slidably connected to the mold, a second spring is fixedly connected to both sides of the lower end of the piston plate, air pipes are evenly arranged inside the base, the lower end of the air pipes communicates with the lower end of the cavity, an air cylinder is fixedly connected to the upper end of the mold, one side of the air cylinder communicates with the air pipe, a piston block is slidably connected inside the air cylinder, a connecting rod is fixedly connected to one side of the piston block, a slider is rotatably connected to one end of the connecting rod, a top plate is provided on all four sides of the upper end of the mold groove, a second sliding groove is provided on one side of the top plate, and the slider slides inside the second sliding groove.

[0011] Preferably, a helical rod is rotatably connected inside the cavity, and the wall of the helical rod is helically driven to the lower end of the rectangular rod. Rotating rods are rotatably connected to both sides of the cavity, and the lower ends of the walls of the rotating rods are rotatably connected to the lower ends of the walls of the helical rods via a belt. Circular shells are fixedly connected to both sides of the upper end of the cavity. A circular block is fixedly connected to the upper end of the rotating rod. A first protrusion is slidably connected evenly inside the circular block. A second protrusion is fixedly connected evenly inside the circular shell. A third spring is fixedly connected to one side of the first protrusion, and the third spring is fixedly connected to the inside of the circular block.

[0012] Preferably, the base has air grooves on both sides of the upper end of the cavity, and a one-way valve is fixedly connected inside the air grooves. Air holes are also provided on both sides of the upper end of the cavity.

[0013] Preferably, a horizontal block is fixedly connected to the upper end of the rectangular rod, and a receiving groove matching the horizontal block is opened on the inner wall of the mold groove.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows: (1) In the first stage, the hydraulic rod drives the push plate to perform preliminary bending of the sheet metal, completing the basic shape shaping. In the second stage, as the hydraulic rod continues to descend, the horizontal plate overcomes the thrust of the first spring and converts the pressure into a horizontal force through the push rod, forcing the push plate to move horizontally and applying an additional horizontal pressure to the bent part of the sheet metal that has already been formed. This additional pressure can effectively counteract the internal stress of the material, making its plastic deformation more thorough, thereby significantly reducing the amount of springback caused by the elastic recovery of the material after forming, ensuring that the final formed sheet metal part has accurate dimensions and stable shape.

[0015] (2) During sheet metal pressing, it simultaneously pushes the rectangular rod in the mold and the piston plate in the cavity downward, compressing the air below the piston plate. The compressed air enters the air cylinder through the air pipe, pushing the piston block and connecting rod, which in turn drives the slider to slide in the second slide groove, thereby forcing the top plate to move towards the center of the mold. Since the outer side of the moving shell is an inclined surface, the top plate moving towards the center will interfere with the moving shell, applying an additional extrusion force pointing inward to the bent sidewall of the sheet metal. This force makes the actual bending angle of the sheet metal at the moment of forming slightly greater than the design angle, forming an "over-bending" state. When the external pressure is removed and the material rebounds slightly, it can rebound to the design angle, thus perfectly compensating for the elasticity of the material itself and weakening the rebound effect from the root.

[0016] (3) When the pressing is completed, the hydraulic rod drives the horizontal plate to move upward, and the piston plate moves upward under the elastic force of the second spring, while driving the rectangular rod to push out the sheet metal. During this process, the vertical linear motion of the rectangular rod is converted into the rotational motion of the screw rod through the helical transmission pair at its lower end. The screw rod then drives the rotating rods and the circular block on both sides to rotate through the belt. The circular block has multiple sliding first protrusions inside. When the circular block rotates, the first protrusions will periodically collide with the second protrusions inside the fixed circular shell and be pressed back. Then, under the action of the third spring, they will pop out and hit the inner wall of the circular shell. This series of continuous impacts generates small and frequent mechanical vibrations on the base and the mold. While the rectangular rod pushes the sheet metal out of the mold groove, these vibrations effectively destroy the adhesion or micro-interlocking that may exist between the sheet metal and the inner wall of the mold, so that the finished product can be smoothly and completely removed, avoiding the "mold jamming" phenomenon and improving production efficiency and yield.

[0017] (4) During the pressing stage when the piston plate moves downward, the one-way valve at the top of the cavity opens to replenish air from the outside. During the demolding and reset stage, the piston plate moves upward, at which point the one-way valve closes, and the piston plate forces the air in the lower part of the cavity into the bottom of the mold groove through the air hole above. This airflow can form an air cushion between the sheet metal and the bottom surface of the mold groove, quickly balancing or eliminating the local vacuum (negative pressure) state between the two, creating favorable conditions for the smooth ejection of the sheet metal. This design complements the vibration demolding mechanism, together forming a reliable demolding guarantee system. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic cross-sectional view of the overall structure of the present invention; Figure 3 For the present invention Figure 2 Enlarged structural diagram at point A in the middle; Figure 4 For the present invention Figure 2 Enlarged structural diagram at point B; Figure 5 For the present invention Figure 2 Enlarged structural diagram at point C; Figure 6 For the present invention Figure 2 Enlarged structural diagram at point D; Figure 7 This is a schematic diagram of the internal structure of the present invention; Figure 8 This is a partial structural diagram of the present invention.

[0019] Explanation of the labels in the diagram: 1. Base; 2. Support plate; 3. Hydraulic rod; 4. Horizontal plate; 5. Moving shell; 6. Push plate; 7. Mold; 8. Air groove; 9. One-way valve; 10. Air pipe; 11. Piston plate; 12. Rectangular rod; 13. Helical rod; 14. Second spring; 15. Second protrusion; 16. Cavity; 17. Air hole; 18. First slide groove; 19. First spring; 20. Limiting rod; 21. Push rod; 22. Support block; 23. Connecting rod; 24. Round shell; 25. First protrusion; 26. Vertical block; 27. Rotating rod; 28. Piston block; 29. ​​Air cylinder; 30. Top plate; 31. Second slide groove; 32. Slider; 33. Belt; 34. Round block; 35. Groove; 36. Vertical rod; 37. Third spring. Detailed Implementation

[0020] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0021] Please see Figure 1-8 A stainless steel chassis and cabinet sheet metal forming machine includes a base 1 and a support plate 2. The support plate 2 is made of metal and is usually welded or fixed to the base 1 by high-strength bolts to form a stable frame structure to withstand the huge reaction force generated during the forming process. The support plate 2 is set at the upper end of the base 1. A mold 7 is fixedly connected to the upper end of the base 1. The upper end of the mold 7 is provided with a mold groove. Hydraulic rods 3 are fixedly connected to both sides of the inside of the support plate 2. The hydraulic rods 3 are driving devices. The output end of the hydraulic rods 3 can extend and retract. The power and control are provided by an external hydraulic system (not shown in the figure, usually including an oil pump, control valve, oil tank, etc.) to achieve a smooth and adjustable pressing stroke and pressure. The output end of the hydraulic rods 3 is provided with a forming component. The forming assembly includes a horizontal plate 4 fixedly connected to the lower end of the hydraulic rod 3. A movable shell 5 is slidably connected to the lower outer side of the horizontal plate 4. The movable shell 5 can slide up and down on the lower outer side of the horizontal plate 4. Support blocks 22 are fixedly connected to the inner walls of all four sides of the movable shell 5. A first spring 19 is fixedly connected to the upper end of the support blocks 22. The support blocks 22 and the movable shell 5 move synchronously. It should be noted that the elastic coefficient of the first spring 19 is specially selected. The sum of its preload and elastic coefficient must be greater than the critical value of the force required to initially press the sheet metal into the mold groove of the mold 7, but less than the maximum thrust that the hydraulic system can provide in the subsequent "bending compensation" stage. The elastic coefficient of the first spring 19 is very large, and a limit is provided between the lower end of the horizontal plate 4 and the movable shell 5. This allows the movable shell 5 to move downwards relative to the horizontal plate 4. At this time, the first spring 19 is in a compressed state, so there is no relative displacement between the movable shell 5 and the horizontal plate 4 at the beginning of sheet metal forming. The upper end of the first spring 19 is fixedly connected to the lower end of the horizontal plate 4. The lower end of the horizontal plate 4 is rotatably connected to a push rod 21, which can rotate relative to the horizontal plate 4. The lower end of the push rod 21 is rotatably connected to a push plate 6. A first groove 18 is provided on one side of the upper end of the push plate 6. A vertical block 26 is slidably connected inside the first groove 18. The vertical block 26 can move inside the first groove 18, thus allowing the push plate 6 to move only horizontally relative to the movable shell 5. The upper end of the vertical block 26 is fixedly connected to the lower end of the support block 22. Figure 3 and Figure 4As shown, a horizontal block is fixedly connected to the upper end of the rectangular rod 12, and a receiving groove matching the horizontal block is opened on the inner wall of the mold groove. By setting the horizontal block, the contact area between the sheet metal and the rectangular rod 12 is increased, the pressure is reduced, and the sheet metal is avoided from being damaged. During operation, the sheet metal to be formed is placed on the upper part of mold 7. Hydraulic rod 3 is activated, and its output end moves the horizontal plate 4 downwards. This downward movement of the horizontal plate 4 causes the moving shell 5 to move downwards. When the lower push plate 6 contacts the sheet metal, the moving shell 5 temporarily stops moving relative to the horizontal plate 4 due to the pushing force of the first spring 19, thus pressing the sheet metal into shape. After the sheet metal is formed, the output end of hydraulic rod 3 continues to move downwards. At this point, hydraulic rod 3 exerts a greater downward force on the horizontal plate 4, which exerts a greater force on the upper part of push rod 21. With a certain pressure, push rod 21 exerts a certain pushing force on push plate 6. As vertical block 26 moves inside the first slide groove 18, push plate 6 can only move horizontally relative to moving shell 5. When the work is finished, hydraulic rod 3 resets, and moving shell 5 and horizontal plate 4 reset under the action of first spring 19. In this way, after the sheet metal is pressed and formed, the hydraulic rod 3 continues to move downward, so that push plate 6 can be further stressed and have a driving force for movement. Push plate 6 applies greater pressure to the bent part, thereby better forming the sheet metal and effectively preventing the sheet metal from springing back.

[0022] like Figure 3 As shown, a vertical rod 36 is fixedly connected to the upper end of the support block 22. The upper end of the vertical rod 36 is slidably connected to the lower end of the horizontal plate 4. The first spring 19 is sleeved on the outside of the vertical rod 36. The vertical rod 36 makes the relative movement between the horizontal plate 4 and the movable shell 5 more stable.

[0023] like Figure 3 As shown, the lower end of the horizontal plate 4 is provided with a groove 35 that matches the first spring 19, so that the first spring 19 has enough space to accommodate it when it is compressed.

[0024] like Figure 3 As shown, a limiting rod 20 is fixedly connected inside the first slide groove 18. The limiting rod 20 passes through the vertical block 26 and is slidably connected to the vertical block 26, ensuring that the push plate 6 can move horizontally stably relative to the moving shell 5.

[0025] like Figure 2 , Figure 6 and Figure 8As shown, the outer side of the movable shell 5 is inclined, and the base 1 has a cavity 16 inside. A piston plate 11 is slidably connected inside the cavity 16. A rectangular rod 12 is fixedly connected to the upper end of the piston plate 11. The rectangular rod 12 is slidably connected to the mold 7 and can move up and down relative to the mold 7. Second springs 14 are fixedly connected to both sides of the lower end of the piston plate 11. The second springs 14 provide upward support to the piston plate 11. Air pipes 10 are evenly arranged inside the base 1. The air pipes 10 are used to transport gas. The lower end of the air pipes 10 is connected to the lower end of the cavity 16. The upper end of the mold 7 is fixedly connected to... There is an air cylinder 29, one side of which is connected to an air pipe 10. A piston block 28 is slidably connected inside the air cylinder 29. The piston block 28 can move inside the air cylinder 29. A connecting rod 23 is fixedly connected to one side of the piston block 28. The piston block 28 and the connecting rod 23 move synchronously. A slider 32 is rotatably connected to one end of the connecting rod 23. The movement of the connecting rod 23 drives the slider 32 to move. A top plate 30 is provided on all four sides of the upper end of the mold groove. A second slide groove 31 is opened on one side of the top plate 30. The slider 32 slides inside the second slide groove 31. The slider 32 can move inside the second slide groove 31. During the pressing process, the downward movement of the sheet metal causes the rectangular rod 12 to move downward under pressure. The movement of the rectangular rod 12 drives the piston plate 11 to move downward, while simultaneously compressing the second spring 14. This increases the air pressure at the lower end of the cavity 16, which in turn increases the internal air pressure of the air cylinder 29 through the air pipe 10. This, in turn, causes the piston block 28 to move. The movement of the piston block 28 drives the connecting rod 23 to move, which in turn pushes the slider 32 to move. When the slider 32 moves, it pushes the top plate 30 to move. Because the side wall of the moving shell 5 is inclined, the top plate 30 will fit against the side wall of the moving shell 5 when it moves. At this time, the connecting rod 23 and the slider 32 support will rotate relative to each other. The top plate 30 pushes the sheet metal and the moving shell 5 to generate a moving extrusion force. When the work is finished, the output end of the hydraulic rod 3 returns to its original position. At this time, the piston plate 11 returns to its original position under the action of the second spring 14. This makes the bending position deeper than the bending during forming, which can slightly compensate for the rebound of the sheet metal, making the rebound of the sheet metal after forming lower, and further improving the pressing effect of the sheet metal.

[0026] like Figure 2 and Figure 8As shown, a spiral rod 13 is rotatably connected inside the cavity 16. The spiral rod 13 can rotate relative to the base 1. The rod wall of the spiral rod 13 is screwed to the lower end of the rectangular rod 12. When the rectangular rod 12 moves up and down, the spiral rod 13 will rotate. Rotating rods 27 are rotatably connected to both sides inside the cavity 16. The lower end of the rod wall of the rotating rod 27 is rotatably connected to the lower end of the rod wall of the spiral rod 13 through a belt 33. When the spiral rod 13 rotates, the rotating rod 27 rotates through the belt 33. Circular shells 24 are fixedly connected to both sides of the upper end inside the cavity 16. Circular blocks 34 are fixedly connected to the upper end of the rotating rod 27. The rotation of the rotating rod 27 drives the circular blocks 34 to rotate. A first protrusion 25 is uniformly slidably connected inside the circular block 34. A second protrusion 15 is uniformly fixedly connected inside the circular shell 24. A third spring 37 is fixedly connected to one side of the first protrusion 25. The third spring 37 provides a certain supporting force to the first protrusion 25. The third spring 37 is fixedly connected to the inside of the circular block 34. When the rectangular rod 12 moves up and down, it causes the screw rod 13 of the screw drive to rotate. The screw rod 13 causes the rotating rod 27 to rotate through the belt 33. The rotation of the rotating rod 27 drives the circular block 34 to rotate. The rotation of the circular block 34 causes the first protrusion 25 to move. The first protrusion 25 moves and contacts the second protrusion 15, which in turn causes the first protrusion 25 to move and compress the third spring 37. When the first protrusion 25 and the second protrusion 15 are misaligned, the first protrusion 25 is reset under the action of the third spring 37, and then impacts the inner wall of the circular shell 24, thus generating vibration. When the hydraulic rod 3 is reset, the rectangular rod 12 moves up and pushes out the sheet metal. At the same time, there is a certain vibration effect, which makes the sheet metal demolding effect better and prevents the mold from getting stuck.

[0027] like Figure 2 As shown, air grooves 8 are provided on both sides of the upper end of the cavity 16 inside the base 1. One-way valves 9 are fixedly connected inside the air grooves 8. Air holes 17 are provided on both sides of the upper end of the cavity 16. When the piston plate 11 moves down, the one-way valve 9 is in the open state, allowing gas to enter the cavity 16. When the piston plate 11 moves up, the one-way valve 9 is in the closed state, which pushes the gas from the air hole 17 into the mold groove. During demolding, there may be a negative pressure between the sheet metal and the mold groove. By squeezing the gas into the mold groove, the demolding effect is improved.

[0028] Working principle: During operation, the sheet metal to be formed is placed on the upper part of the mold 7. The hydraulic rod 3 is activated, and its output end moves the horizontal plate 4 downwards. The downward movement of the horizontal plate 4 causes the moving shell 5 to move downwards. When the lower push plate 6 contacts the sheet metal, the moving shell 5 temporarily stops moving relative to the horizontal plate 4 due to the pushing force of the first spring 19, thus pressing and forming the sheet metal. After the sheet metal is formed, the output end of the hydraulic rod 3 continues to move downwards. At this point, the hydraulic rod 3 exerts a greater downward force on the horizontal plate 4, which in turn exerts a greater force on the push rod 21. There is a certain pressure at the top, and the push rod 21 has a certain pushing force on the push plate 6. As the vertical block 26 moves inside the first slide groove 18, the push plate 6 can only move horizontally relative to the moving shell 5. When the work is finished, the hydraulic rod 3 resets, and the moving shell 5 and the horizontal plate 4 reset under the action of the first spring 19. In this way, after the sheet metal is pressed and formed, the hydraulic rod 3 continues to move downward, so that the push plate 6 can be further subjected to force and has a driving force for movement. The push plate 6 applies greater pressure to the bent part, thereby better forming the sheet metal and effectively preventing the sheet metal from springing back. Furthermore, during the pressing process, the downward movement of the sheet metal causes the rectangular rod 12 to move downward under pressure. The movement of the rectangular rod 12 drives the piston plate 11 to move downward, while simultaneously compressing the second spring 14, which increases the air pressure at the lower end of the cavity 16. This increases the internal air pressure of the air cylinder 29 through the air pipe 10, thereby causing the piston block 28 to move. The movement of the piston block 28 drives the connecting rod 23 to move, which in turn pushes the slider 32 to move. When the slider 32 moves, it pushes the top plate 30 to move. Because the side wall of the moving shell 5 is inclined, the top plate 30 will fit against the side wall of the moving shell 5 when it moves. At this time, the connecting rod 23 and the slider 32 support will rotate relative to each other. The top plate 30 pushes the sheet metal and the moving shell 5 to generate a moving extrusion force. When the work is finished, the output end of the hydraulic rod 3 returns to its original position. At this time, the piston plate 11 returns to its original position under the action of the second spring 14. This makes the bending position deeper than the bending during forming, which can slightly compensate for the rebound of the sheet metal, resulting in a lower rebound after the sheet metal is formed, and further improving the pressing effect of the sheet metal. When the rectangular rod 12 moves up and down, it causes the screw rod 13 of the screw drive to rotate. The screw rod 13 causes the rotating rod 27 to rotate through the belt 33. The rotation of the rotating rod 27 drives the circular block 34 to rotate. The rotation of the circular block 34 causes the first protrusion 25 to move. The first protrusion 25 moves and contacts the second protrusion 15, which in turn causes the first protrusion 25 to move and compress the third spring 37. When the first protrusion 25 and the second protrusion 15 are misaligned, the first protrusion 25 is reset under the action of the third spring 37, and then impacts the inner wall of the circular shell 24, thus generating vibration. When the hydraulic rod 3 is reset, the rectangular rod 12 moves up and pushes out the sheet metal. At the same time, there is a certain vibration effect, which makes the sheet metal demolding effect better and prevents the mold from getting stuck.

[0029] The above description is merely a preferred embodiment of the present invention; however, the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and its improved concepts, should be covered within the scope of protection of the present invention.

Claims

1. A stainless steel chassis / cabinet sheet metal forming machine, comprising a base (1) and a support plate (2), characterized in that: The support plate (2) is set on the upper end of the base (1). The upper end of the base (1) is fixedly connected to the mold (7). The upper end of the mold (7) is provided with a mold groove. The two sides inside the support plate (2) are fixedly connected to hydraulic rods (3). The output end of the hydraulic rods (3) is provided with a forming assembly. The forming assembly includes a horizontal plate (4) fixedly connected to the lower end of the hydraulic rod (3). A movable shell (5) is slidably connected to the lower outer side of the horizontal plate (4). Support blocks (22) are fixedly connected to the inner walls of the four sides of the movable shell (5). A first spring (19) is fixedly connected to the upper end of the support block (22). The upper end of the first spring (19) is fixedly connected to the lower end of the horizontal plate (4). A push rod (21) is rotatably connected to the lower end of the horizontal plate (4). A push plate (6) is rotatably connected to the lower end of the push rod (21). A first groove (18) is provided on one side of the upper end of the push plate (6). A vertical block (26) is slidably connected inside the first groove (18). The upper end of the vertical block (26) is fixedly connected to the lower end of the support block (22).

2. The stainless steel chassis and cabinet sheet metal forming machine according to claim 1, characterized in that: The upper end of the support block (22) is fixedly connected to a vertical rod (36), the upper end of the vertical rod (36) is slidably connected to the lower end of the horizontal plate (4), and the first spring (19) is sleeved on the outside of the vertical rod (36).

3. The stainless steel chassis and cabinet sheet metal forming machine according to claim 2, characterized in that: The lower end of the horizontal plate (4) is provided with a groove (35) that matches the first spring (19).

4. The stainless steel chassis and cabinet sheet metal forming machine according to claim 3, characterized in that: The first slide groove (18) is fixedly connected to a limiting rod (20), which passes through the vertical block (26) and is slidably connected to the vertical block (26).

5. The stainless steel chassis and cabinet sheet metal forming machine according to claim 4, characterized in that: The outer side of the movable shell (5) is inclined. A cavity (16) is formed inside the base (1). A piston plate (11) is slidably connected inside the cavity (16). A rectangular rod (12) is fixedly connected to the upper end of the piston plate (11). The rectangular rod (12) is slidably connected to the mold (7). Second springs (14) are fixedly connected to both sides of the lower end of the piston plate (11). Air pipes (10) are evenly arranged inside the base (1). The lower end of the air pipes (10) communicates with the lower end of the cavity (16). An air cylinder (29) is fixedly connected to the upper end of the mold (7). One side of the air cylinder (29) is connected to the air pipe (10). A piston block (28) is slidably connected inside the air cylinder (29). A connecting rod (23) is fixedly connected to one side of the piston block (28). A slider (32) is rotatably connected to one end of the connecting rod (23). A top plate (30) is provided on all four sides of the upper end of the mold groove. A second sliding groove (31) is opened on one side of the top plate (30). The slider (32) slides inside the second sliding groove (31).

6. The stainless steel chassis and cabinet sheet metal forming machine according to claim 5, characterized in that: The cavity (16) is rotatably connected to a helical rod (13). The rod wall of the helical rod (13) is helically driven to the lower end of the rectangular rod (12). Rotary rods (27) are rotatably connected to both sides of the cavity (16). The lower end of the rod wall of the rotating rod (27) is rotatably connected to the lower end of the rod wall of the helical rod (13) through a belt (33). Circular shells (24) are fixedly connected to both sides of the upper end of the cavity (16). Circular blocks (34) are fixedly connected to the upper end of the rotating rods (27). A first protrusion (25) is uniformly slidably connected inside the circular block (34). A second protrusion (15) is uniformly fixedly connected inside the circular shell (24). A third spring (37) is fixedly connected to one side of the first protrusion (25). The third spring (37) is fixedly connected to the inside of the circular block (34).

7. The stainless steel chassis and cabinet sheet metal forming machine according to claim 5, characterized in that: The base (1) has air grooves (8) on both sides of the upper end of the cavity (16) inside. A one-way valve (9) is fixedly connected inside the air groove (8). Air holes (17) are opened on both sides of the upper end of the cavity (16).

8. The stainless steel chassis and cabinet sheet metal forming machine according to claim 5, characterized in that: The upper end of the rectangular rod (12) is fixedly connected to a horizontal block, and the inner wall of the mold groove is provided with a receiving groove that matches the horizontal block.

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