Stamping device for steel structural part production

Abstract

The invention relates to the technical field of stamping, and discloses a stamping device for steel structural part production, which comprises a stamping frame, the bottom surface in the stamping frame is fixedly connected with a stamping base, the top of the stamping frame is fixedly connected with a first hydraulic rod, and the output end of the first hydraulic rod is fixedly connected with a first ejector rod; a stamping assembly is arranged at the bottom of the first ejector rod. A threaded ejector rod ascends to drive the other gear to rotate, the other gear rotates to drive a first cleaning assembly and a second cleaning assembly to synchronously move rightwards, and the first cleaning assembly moves rightwards to drive a connecting rod and a pushing groove to move along a cleaning plate; and the iron oxide is removed in time through the cleaning assembly, mechanical abrasion and chemical corrosion on the surface of the mold can be reduced, and the maintenance period and the service life of the mold are remarkably prolonged.

Description

Technical Field

[0001] The present application relates to the field of stamping technology, and particularly to a stamping device for the production of steel structure parts. Background Art

[0002] Steel structure is a structure composed of steel materials and is one of the main types of building structures, with the characteristics of relatively high hardness and light self-weight. In the existing stamping devices for steel structure production, usually a sheet is placed on the surface of a mold, and then the sheet is rolled into shape by a hydraulic block. During this process, the sheet may be heated to improve its plasticity, making it easier to be rolled into shape. However, during the rolling process of the high-temperature sheet, iron oxide will be generated on the surface of the sheet as it is pressed. After the iron oxide falls into the mold, it may cause the subsequent sheet to come into contact with the fallen iron oxide during the rolling process, resulting in surface pits and affecting the forming effect. At the same time, when removing the high-temperature sheet from the mold, it is mostly lifted from both sides. When lifting, one side or both sides of the formed sheet will be stressed, which may cause deformation at the stressed and extruded parts, thus affecting the forming effect of the sheet. Secondly, in the existing cleaning component in the stamping device, after the driving member drives the ejector rod to move, the iron oxide that falls due to pressing is pushed out to complete the cleaning work. During this process, the push rod may come into contact with the high-temperature sheet. The high-temperature sheet will transfer the temperature to the driving member through heat transfer, and the driving member will be affected by the high temperature and cause fluctuations in performance, which may lead to insufficient thrust or response delay, thereby reducing the working efficiency. Summary of the Invention

[0003] The present application provides a stamping device for the production of steel structure parts, which has the advantage of good forming effect, and is used to solve the problem that the sheet may come into contact with the fallen iron oxide during the rolling process, resulting in poor forming effect.

[0004] To achieve the above object, the present application adopts the following technical solutions: It includes a stamping frame, the bottom surface inside the stamping frame is fixedly connected with a stamping base, the top of the stamping frame is fixedly connected with a first hydraulic rod, the output end of the first hydraulic rod is fixedly connected with a first ejector rod, and a stamping component is arranged at the bottom of the first ejector rod; The middle of the top end of the stamping base is fixedly connected with a hydraulic mold, and an opening and closing component is arranged inside the hydraulic mold; A first installation groove is opened on one side inside the stamping base, a second hydraulic rod is fixedly connected inside the first installation groove, the output end of the second hydraulic rod is fixedly connected with a second ejector rod, and two groups of cleaning components are arranged on one side of the second ejector rod; A threaded ejector rod is slidably connected to the middle part inside the stamping base. As described above, the structure can enable the sheet to be processed and formed through the cooperation of the cleaning component, the opening and closing component, and the stamping component during operation.

[0005] Preferably, the stamping assembly includes a positioning plate fixedly connected to the bottom end of the first ejector rod. A stamping die is fixedly connected to the middle of the lower surface of the positioning plate. Positioning holes are formed in the four circumferences of the bottom of the positioning plate. Positioning columns are fixedly connected to the four circumferences of the top of the stamping base. Multiple groups of the positioning holes and multiple groups of the positioning columns correspond to each other. The two sides of the top of the stamping frame are both slidably connected with limiting rods, and the limiting rods are fixedly connected to the positioning plate. The midpoints of the hydraulic die, the stamping die, the first ejector rod, and the first hydraulic rod are all on the same axis. As described above, the structure can, during operation, stamp the plate into shape through the cooperation of the stamping die and the hydraulic die.

[0006] Preferably, the cleaning assembly includes a first sliding groove formed inside the stamping base. One end of the second ejector rod is fixedly connected with a U-shaped plate. Rack bars are fixedly connected to both sides of the top of the U-shaped plate. Trapezoidal blocks are fixedly connected to both sides of the bottom of the U-shaped plate. The two trapezoidal blocks are both slidably connected with the stamping frame. A gear is arranged at the top of the rack bar. The two rack bars are both meshed with the gear. A rotating shaft is movably sleeved inside the gear, and the rotating shaft is fixedly connected to the stamping base. As described above, the structure can, during operation, drive the threaded ejector rod to rise by the second hydraulic rod, thereby driving the opening and closing assembly to move.

[0007] Preferably, the cleaning assembly further includes two connecting rods, both of which are fixedly connected to both sides of the top of the first group of U-shaped plates. The two connecting rods are both slidably connected inside the stamping base. A pushing groove is formed inside the stamping base. A cleaning plate is fixedly connected to the top of the connecting rod. The cleaning plate is slidably connected inside the pushing groove. The two gears are both meshed with the threaded ejector rod. As described above, the structure can, during operation, push the dropped iron oxide into the inside of the discharge chute opening through the movement of the pushing groove, and then discharge the iron oxide through the inclined plate arranged inside the discharge chute opening.

[0008] Preferably, the opening and closing assembly includes a fixed rod fixedly connected to the middle of the top end of the threaded ejector rod. A top block is fixedly connected to the top of the fixed rod. One end of a pushing rod is hinged to both sides of the fixed rod. As described above, the structure can, during operation, push the limiting plate to move through the pushing rod.

[0009] Preferably, the opening and closing assembly further includes a second sliding groove formed inside the hydraulic die. Two limiting plates are slidably connected inside the second sliding groove. Hinge plates are fixedly connected to one side of the two limiting plates. The other end of the pushing rod is hinged to the hinge plate.

[0010] Preferably, a cleaning groove is formed inside the stamping base, and a discharge slot opening is formed on one side of the cleaning groove. The cleaning groove is communicated with the discharge slot opening. With the above structure, during operation, the dropped iron oxide can be removed through the connection between the cleaning groove and the discharge slot opening.

[0011] Preferably, the bottom surface of the cleaning plate fits the bottom surface of the cleaning groove, and a semi-circular chamfer is provided at the corner where the cleaning groove and the discharge slot opening are connected. With the above structure, during operation, the iron oxide can fall better through the setting of the semi-circular chamfer, avoiding accumulation inside the cleaning groove.

[0012] Preferably, the top block is trapezoidal, the length of the top block is equal to the length of the limiting plate, and the top block is arranged in the middle of the cleaning groove. With the above structure, during operation, by setting the top block in the middle of the cleaning groove, the force on the plate during the discharging process can be more uniform, avoiding deformation.

[0013] Preferably, the length and width of the second sliding groove are both equal to those of the limiting plate and the hinge plate. With the above structure, during operation, since the length and width of the second sliding groove are both equal to those of the limiting plate and the hinge plate, when the limiting plate is completely retracted into the second sliding groove, the iron oxide on its top can be pushed out by the hydraulic die, avoiding accumulation on the top of the limiting plate.

[0014] The beneficial effects of the present invention are as follows: After the threaded top rod of the present invention rises, it drives another gear to rotate. After the other gear rotates, it drives the first set of cleaning components and the second cleaning components to move synchronously to the right. When the first set of cleaning components moves to the right, it can drive the connecting rod and the pushing groove to move along the cleaning plate, thereby pushing the dropped iron oxide into the inside of the discharge slot opening to complete the discharging. By timely removing the iron oxide through the cleaning components, the mechanical wear and chemical corrosion on the surface of the die can be reduced, significantly extending the die maintenance cycle and service life. At the same time, timely removal of iron oxide residues can avoid problems such as pits, cracks, or excessive surface roughness on the surface of the formed parts, thereby improving the stamping effect and product quality.

[0015] By starting the second hydraulic rod to push the second top rod to move, the second top rod drives the U-shaped plate, the rack, and the trapezoidal block to move. After the rack moves, it drives the top block to rise through a series of transmissions, thereby ejecting the stamped and formed plate out of the hydraulic die. When the plate is discharged, the thrust on the plate is reasonably distributed on the bottom surface of the plate, thereby avoiding uneven force on the formed plate, resulting in deformation at the stressed and extruded parts, which affects the forming effect of the plate.

[0016] In the present invention, the second hydraulic rod is used to push the second ejector rod to move. The movement of the second ejector rod drives the cooperative movement of the cleaning assembly and the threaded ejector rod, enabling the fixed rod and the top block to eject the stamping plate. During this process, through the cooperation of multiple groups of structures, the plate with high-temperature properties is ejected through the top block, avoiding the transfer of temperature from the high-temperature plate to the second ejector rod through heat transfer, and preventing the second ejector rod from potentially reducing the efficiency of the electric push rod due to high temperature, resulting in insufficient thrust or response delay. By isolating the high temperature through the structure of the top plate, it can ensure that the electric push rod is always in the best working state and reduce performance fluctuations caused by temperature changes. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The drawings forming a part of the specification depict the embodiments disclosed in the present application and, together with the specification, are used to explain the principles of the present application in a clear and understandable manner.

[0018] Referring to the drawings, the present disclosure can be more clearly understood from the following detailed description, wherein: Figure 1 is a schematic diagram of the overall structure of the present invention; Figure 2 is a schematic diagram of the structure of the limit plate of the present invention; Figure 3 is a schematic diagram of the structure of the first ejector rod of the present invention; Figure 4 is an internal sectional view of the stamping base of the present invention; Figure 5 is a schematic diagram of the structure of the cleaning groove of the present invention; Figure 6 is a schematic diagram of the structure of the opening and closing assembly of the present invention; Figure 7 is a schematic diagram of the structure of the cleaning assembly of the present invention.

[0019] Wherein: 1. Stamping frame; 2. Stamping base; 3. First hydraulic rod; 4. First ejector rod; 5. Positioning plate; 6. Stamping die; 7. Positioning hole; 8. Positioning column; 10. Hydraulic die; 11. Limit rod; 12. First installation groove; 13. Second hydraulic rod; 14. Second ejector rod; 15. First sliding groove; 16. U-shaped plate; 17. Rack; 18. Trapezoidal block; 19. Gear; 20. Rotating shaft; 21. Connecting rod; 22. Pushing groove; 23. Cleaning plate; 24. Fixed rod; 25. Top block; 26. Pushing rod; 27. Second sliding groove; 28. Limit plate; 29. Hinge plate; 30. Cleaning groove; 31. Discharge slot; 32. Threaded ejector rod. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0020] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application.

[0021] Please refer to Figures 1-7 , an embodiment of the present invention provides a stamping device for the production of steel structure parts, including a stamping frame 1, a stamping base 2 fixedly connected to the bottom surface inside the stamping frame 1, a first hydraulic rod 3 fixedly connected to the top of the stamping frame 1, a first ejector rod 4 fixedly connected to the output end of the first hydraulic rod 3, and a stamping assembly disposed at the bottom of the first ejector rod 4; The middle of the top end of the stamping base 2 is fixedly connected with a hydraulic mold 10, and an opening and closing assembly is arranged inside the hydraulic mold 10; A first installation groove 12 is opened on one side inside the stamping base 2, a second hydraulic rod 13 is fixedly connected to the inside of the first installation groove 12, a second ejector rod 14 is fixedly connected to the output end of the second hydraulic rod 13, and two groups of cleaning assemblies are arranged on one side of the second ejector rod 14; A threaded ejector rod 32 is slidably connected to the middle of the inside of the stamping base 2, and the sheet material is processed into a finished product through the cooperation of the cleaning assembly, the opening and closing assembly and the stamping assembly.

[0022] Among them, the stamping assembly includes a positioning plate 5, the positioning plate 5 is fixedly connected to the bottom end of the first ejector rod 4, a stamping die 6 is fixedly connected to the middle of the lower surface of the positioning plate 5, positioning holes 7 are opened at the four corners of the bottom of the positioning plate 5, positioning columns 8 are fixedly connected to the four corners of the top of the stamping base 2, multiple groups of positioning holes 7 and multiple groups of positioning columns 8 correspond to each other, limiting rods 11 are slidably connected to both sides of the top of the stamping frame 1, the limiting rods 11 are fixedly connected to the positioning plate 5, and the midpoints of the hydraulic mold 10, the stamping die 6, the first ejector rod 4 and the first hydraulic rod 3 are on the same axis, and the sheet material is stamped into shape through the cooperation of the stamping die 6 and the hydraulic mold 10.

[0023] Among them, the cleaning component includes a first sliding groove 15 which is opened inside the stamping base 2. One end of the second ejector rod 14 is fixedly connected to a U-shaped plate 16. On both sides of the top of the U-shaped plate 16, racks 17 are fixedly connected. On both sides of the bottom of the U-shaped plate 16, trapezoidal blocks 18 are fixedly connected. Both groups of trapezoidal blocks 18 are slidably connected to the stamping frame 1. On the top of the rack 17, a gear 19 is arranged. Both groups of racks 17 are meshed with the gear 19. Inside the gear 19, a rotating shaft 20 is movably sleeved. The rotating shaft 20 is fixedly connected to the stamping base 2. The cleaning component further includes two connecting rods 21. Both groups of connecting rods 21 are fixedly connected to both sides of the top of the first group of U-shaped plates 16. Both groups of connecting rods 21 are slidably connected inside the stamping base 2. Inside the stamping base 2, a pushing groove 22 is opened. On the top of the connecting rod 21, a cleaning plate 23 is fixedly connected. The cleaning plate 23 is slidably connected inside the pushing groove 22. Both groups of gears 19 are meshed with a threaded ejector rod 32. After the threaded ejector rod 32 rises, it drives another gear 19 to rotate. After the other gear 19 rotates, it drives the first cleaning component and the second cleaning component to move synchronously to the right. When the first cleaning component moves to the right, it can drive the connecting rod 21 and the pushing groove 22 to move along the cleaning plate 23, so as to push the fallen iron oxide into the inside of the discharge chute opening 31 to complete the discharging. By timely removing the iron oxide through the cleaning component, the mechanical wear and chemical corrosion on the surface of the mold can be reduced, the mold maintenance period and service life can be significantly extended. At the same time, timely removal of the iron oxide residue can avoid problems such as pits, cracks or excessive roughness on the surface of the formed part, thereby improving the stamping effect and the product quality.

[0024] Among them, the opening and closing component includes a fixed rod 24 which is fixedly connected to the middle of the top end of the threaded ejector rod 32. On the top of the fixed rod 24, a top block 25 is fixedly connected. One end of a push rod 26 is hinged on both sides of the fixed rod 24. The opening and closing component further includes a second sliding groove 27 which is opened inside the hydraulic mold 10. Inside the second sliding groove 27, two limiting plates 28 are slidably connected. On one side of both groups of limiting plates 28, a hinged plate 29 is fixedly connected. The other end of the push rod 26 is hinged to the hinged plate 29. By starting the second hydraulic rod 13 to push the second ejector rod 14 to move, the movement of the second ejector rod 14 drives the U-shaped plate 16, the rack 17 and the trapezoidal block 18 to move. After the rack 17 moves, it drives the top block 25 to rise through a series of transmissions. The top block 25 rises, so as to eject the stamped and formed plate out of the hydraulic mold 10. When the plate is discharged, the thrust on the plate is reasonably distributed on the bottom surface of the plate, so as to avoid uneven force on the formed plate, resulting in deformation at the stressed part and the extruded part, thereby affecting the forming effect of the plate.

[0025] Among them, a cleaning groove 30 is provided inside the stamping base 2, and a discharge chute opening 31 is provided on one side of the cleaning groove 30. The cleaning groove 30 and the discharge chute opening 31 are in communication with each other. Through the connection of the cleaning groove 30 and the discharge chute opening 31, the fallen iron oxide is pushed into the inside of the discharge chute opening 31, and then, due to the inclined angle provided inside the discharge chute opening 31, the iron oxide slides down along the inclined angle, recovering the iron oxide and also preventing it from affecting the stamping sheet.

[0026] Among them, the bottom surface of the cleaning plate 23 is attached to the bottom surface of the cleaning groove 30. A semi-circular chamfer is provided at the corner where the cleaning groove 30 and the discharge chute opening 31 are in communication. Through the setting of the semi-circular chamfer, the iron oxide can fall better and avoid accumulation inside the cleaning groove 30.

[0027] Among them, the top block 25 is trapezoidal, and the length of the top block 25 is equal to the length of the limiting plate 28. The top block 25 is arranged in the middle of the cleaning groove 30. By arranging the top block 25 in the middle of the cleaning groove 30, the sheet can be more evenly stressed during the discharging process, avoiding deformation.

[0028] Among them, the length and width of the second sliding groove 27 are both equal to those of the limiting plate 28 and the hinged plate 29. By making the length and width of the second sliding groove 27 both equal to those of the limiting plate 28 and the hinged plate 29, when the limiting plate 28 is completely retracted into the second sliding groove 27, the iron oxide on its top will be pushed out by the hydraulic die 10, avoiding accumulation on the top of the limiting plate 28.

[0029] Working principle: During the working process, by placing the heated sheet on top of the hydraulic die 10, the first hydraulic rod 3 is activated. The first hydraulic rod 3 drives the first ejector rod 4 to press downwards. The first ejector rod 4 drives the positioning plate 5 and the stamping die 6 to press downwards. The stamping die 6 presses the heated sheet into the interior of the hydraulic die 10 to make it stamping formed. During stamping, the sheet deforms, and the iron oxide on its surface falls off due to the deformation of the sheet. The fallen iron oxide lands on the surface of the limit plate 28. At this time, the stamping die 6 rises, and the second hydraulic rod 13 is activated to push the second ejector rod 14 to move. The movement of the second ejector rod 14 drives the U-shaped plate 16, the rack 17, and the trapezoidal block 18 to move. After the rack 17 moves, it meshes with the gear 19, thereby driving the gear 19 to rotate along the outer surface of the rotating shaft 20. After the gear 19 rotates, one side meshes with the threaded ejector rod 32, and it can drive the threaded ejector rod 32 to rise. The rising of the threaded ejector rod 32 drives the fixed rod 24 to rise. And because the two push rods 26 are respectively hinged to the fixed rod 24 and the push rod 26, after the fixed rod 24 moves, it will push the two limit plates 28 and the two hinge plates 29 to both sides respectively to open them. After the hinge plate 29 opens, the iron oxide that has fallen off due to stamping will fall to the bottom of the cleaning groove 30. At this time, the continuous rising of the fixed rod 24 can drive the top block 25 to rise, thereby ejecting the stamped sheet out of the hydraulic die 10. When the sheet is discharged, the thrust on the sheet is reasonably distributed on the bottom surface of the sheet, thereby avoiding uneven stress on the formed sheet, resulting in deformation at the stressed and extruded areas, thus affecting the forming effect of the sheet; At the same time, after the threaded ejector rod 32 rises, it drives another gear 19 to rotate. After the other gear 19 rotates, it drives the first cleaning component and the second cleaning component to synchronously displace to the right. The right displacement of the first cleaning component can drive the connecting rod 21 and the pushing groove 22 to displace along the cleaning plate 23, thereby pushing the fallen iron oxide into the interior of the discharge chute opening 31 to complete the discharge. By timely removing the iron oxide through the cleaning component, mechanical wear and chemical corrosion on the surface of the die can be reduced, significantly extending the die maintenance cycle and service life. At the same time, timely removal of iron oxide residues can avoid problems such as pits, cracks, or excessive roughness on the surface of the formed part, thereby improving the stamping effect and product quality.

[0030] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit them. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be modified or equivalently replaced without departing from the spirit and scope of the technical solutions of the present invention, and they should all be covered within the scope of the claims of the present invention.

Claims

1. A stamping device for producing steel structural parts, comprising a stamping frame (1), characterized in that: The bottom surface of the punching frame (1) is fixedly connected to a punching base (2), the top of the punching frame (1) is fixedly connected to a first hydraulic rod (3), the output end of the first hydraulic rod (3) is fixedly connected to a first push rod (4), and a punching assembly is provided at the bottom of the first push rod (4); A hydraulic die (10) is fixedly connected to the middle of the top of the punching base (2), and an opening and closing component is arranged inside the hydraulic die (10); A first mounting groove (12) is provided on one side of the interior of the punching base (2); a second hydraulic rod (13) is fixedly connected to the interior of the first mounting groove (12); a second push rod (14) is fixedly connected to the output end of the second hydraulic rod (13); and two groups of cleaning components are provided on one side of the second push rod (14); A threaded ejector rod (32) is slidably connected to the middle portion of the punching base (2).

2. A stamping device for producing steel structural parts according to claim 1, characterized in that: The stamping assembly comprises a positioning plate (5), the positioning plate (5) being fixedly connected to the bottom end of the first push rod (4), a stamping die (6) being fixedly connected to the middle of the lower surface of the positioning plate (5), positioning holes (7) being provided around the bottom of the positioning plate (5), positioning columns (8) being fixedly connected to the top of the stamping base (2), a plurality of groups of positioning holes (7) and a plurality of groups of positioning columns (8) corresponding to each other, limiting rods (11) being slidably connected to both sides of the top of the stamping frame (1), the limiting rods (11) being fixedly connected to the positioning plate (5), and the midpoints of the hydraulic die (10), the stamping die (6), the first push rod (4) and the first hydraulic rod (3) are all on the same axis.

3. A stamping device for producing steel structural parts according to claim 2, characterized in that: The cleaning assembly comprises a first sliding groove (15), wherein the first sliding groove (15) is opened inside the punching base (2), one end of the second push rod (14) is fixedly connected to a U-shaped plate (16), both sides of the top of the U-shaped plate (16) are fixedly connected to racks (17), both sides of the bottom of the U-shaped plate (16) are fixedly connected to trapezoidal blocks (18), two groups of the trapezoidal blocks (18) are slidably connected to the punching frame (1), a gear (19) is provided at the top of the rack (17), the two groups of the racks (17) are meshedly connected to the gear (19), a rotating shaft (20) is movably sleeved inside the gear (19), and the rotating shaft (20) is fixedly connected to the punching base (2).

4. A stamping device for producing steel structural parts according to claim 3, characterized in that: The cleaning assembly further comprises two groups of connecting rods (21), the two groups of connecting rods (21) are fixedly connected to both sides of the top of the first group of U-shaped plates (16), the two groups of connecting rods (21) are slidably connected to the inside of the stamping base (2), a pushing groove (22) is provided inside the stamping base (2), a cleaning plate (23) is fixedly connected to the top of the connecting rod (21), the cleaning plate (23) is slidably connected to the inside of the pushing groove (22), and the two groups of gears (19) are meshedly connected to the threaded push rod (32).

5. A stamping device for producing steel structural parts according to claim 4, characterized in that: The opening and closing assembly comprises a fixed rod (24), the fixed rod (24) being fixedly connected to the middle part of the top end of the threaded push rod (32), the top of the fixed rod (24) being fixedly connected to a push block (25), and one end of a push rod (26) being hingedly connected to both sides of the fixed rod (24).

6. A stamping device for producing steel structural parts according to claim 5, characterized in that: The opening and closing assembly further comprises a second sliding groove (27), wherein the second sliding groove (27) is provided inside the hydraulic mold (10), and two groups of limit plates (28) are slidably connected inside the second sliding groove (27), and one side of the two groups of limit plates (28) is fixedly connected to a hinge plate (29), and the other end of the push rod (26) is hinged to the hinge plate (29).

7. A stamping device for producing steel structural parts according to claim 6, characterized in that: A cleaning groove (30) is provided inside the punching base (2), a material discharge groove opening (31) is provided on one side of the cleaning groove (30), and the cleaning groove (30) and the material discharge groove opening (31) are communicated with each other.

8. A stamping device for producing steel structural parts according to claim 7, characterized in that: The bottom surface of the cleaning plate (23) fits the bottom surface of the cleaning groove (30), and a semicircular chamfer is provided at a connecting corner between the cleaning groove (30) and the discharge slot (31).

9. A stamping device for producing steel structural parts according to claim 8, characterized in that: The top block (25) is trapezoidal in shape, the length of the top block (25) is equal to the length of the limiting plate (28), and the top block (25) is arranged in the middle of the cleaning tank (30).

10. A stamping device for producing steel structural parts according to claim 9, characterized in that: The length and width of the second sliding groove (27) are equal to those of the limiting plate (28) and the hinge plate (29).

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