High-voltage iron tower angle steel inward bending die and stamping equipment

Abstract

The invention relates to the technical field of angle steel bending, in particular to a high-voltage iron tower angle steel inward bending die and stamping equipment which comprises a machining table and a fixing plate fixed to the machining table. The driving assembly is arranged on the machining table, a rotating plate is connected to the driving assembly, a bending assembly is arranged on the rotating plate, a supporting lower die is connected to the bending assembly, and the driving assembly can drive the supporting lower die to move through the rotating plate and the bending assembly; the inner side supporting mechanism is arranged on the fixing plate, and the inner side supporting mechanism is connected with first clamping plates which are symmetrically arranged; and the translation assembly is arranged on the machining table, an outer side supporting mechanism is arranged on the translation assembly, second clamping plates which are symmetrically arranged are connected to the outer side supporting mechanism, and the inner side and the outer side of the angle steel are clamped by adjusting the deflection angles of the first clamping plates and the second clamping plates, so that the bending stability of the angle steel is ensured.

Description

Technical Field

[0001] The present invention relates to the technical field of angle steel bending, specifically to an inward bending die and stamping equipment for angle steel of high-voltage transmission towers. Background Technique

[0002] Angle steel of high-voltage transmission towers is an important material used for constructing high-voltage transmission towers, and has characteristics such as high strength, good ductility and weldability.

[0003] In actual use, it is usually necessary to bend the angle steel, and the angle steel bending is mainly carried out by cold bending method, hot bending method, etc. For the cold bending method, it is mainly a processing method of bending the angle steel by mechanical force.

[0004] During the inward bending process of the angle steel of high-voltage transmission towers, it is necessary to fix the angle steel by a fixture, and then bend the angle steel by a die. However, since the angle steel is arranged in an L shape, when the existing fixture fixes the angle steel, it can usually only clamp and fix part of the side wall of the angle steel, resulting in a small clamping area. When the angle steel is bent, a reaction force in the opposite direction will be generated at the clamping position of the fixture. Due to the small clamping area of the fixture, the supporting force that can be provided to the angle steel cannot completely offset the reaction force. This reaction force may cause deformation or other problems to the angle steel at the clamping position of the fixture, affecting the bending quality and the structural integrity of the angle steel. Summary of the Invention

[0005] The purpose of the present invention is to provide an inward bending die and stamping equipment for angle steel of high-voltage transmission towers to solve the problems raised in the above background technique.

[0006] To achieve the above purpose, the present invention provides the following technical solutions: An inward bending die for angle steel of high-voltage transmission towers, comprising: A connecting sleeve, and a limiting hole opened on the connecting sleeve; An arc-shaped upper die, rotatably installed on the connecting sleeve, a fixing column is fixed at the bottom of the arc-shaped upper die, and a rotating support assembly for connecting with the arc-shaped upper die is arranged on the connecting sleeve.

[0007] As a further scheme of the present invention: The rotating support assembly includes a first rotating ring and a second rotating ring that are symmetrically arranged and fixedly installed on the connecting sleeve, the first rotating ring is rotatably connected with the arc-shaped upper die, and a reinforcing rib fixedly connected with the first rotating ring and the second rotating ring is fixed on the connecting sleeve.

[0008] Stamping equipment, comprising: A processing table, and a fixing plate fixed on the processing table; The driving assembly is arranged on the processing table. A rotating plate is connected to the driving assembly. A bending assembly is arranged on the rotating plate. A supporting lower die is connected to the bending assembly. The driving assembly can drive the supporting lower die to move through the rotating plate and the bending assembly. The inner supporting mechanism is arranged on the fixed plate. First clamping plates which are symmetrically arranged are connected to the inner supporting mechanism. The translation assembly is arranged on the processing table. An outer supporting mechanism is arranged on the translation assembly. Second clamping plates which are symmetrically arranged are connected to the outer supporting mechanism. The translation assembly can drive the second clamping plates to move towards or away from the first clamping plates through the outer supporting mechanism.

[0009] As a further scheme of the present invention: The inner supporting mechanism includes first guiding columns which are fixed on the fixed plate and are symmetrically arranged. First supporting plates are fixed at the ends of the first guiding columns. First connecting rods are fixed on the first supporting plates. The first connecting rods are rotatably connected to the first clamping plates. A pushing assembly connected to the first guiding columns is arranged on the fixed plate.

[0010] As a further scheme of the present invention: The pushing assembly includes a first guiding sleeve slidably mounted on the first guiding column. A first connecting plate is fixed on the first guiding sleeve. A second air cylinder fixed to the first connecting plate is fixed on the fixed plate. A first connecting rod which is hinged to the first clamping plate is hinged on the first guiding sleeve.

[0011] As a further scheme of the present invention: The translation assembly includes a lead screw rotatably mounted on the processing table. A threaded sleeve is threadedly connected to the lead screw. A guiding rod is fixed on the processing table. A sliding sleeve is slidably mounted on the guiding rod. A receiving plate fixed to the threaded sleeve is fixed on the sliding sleeve.

[0012] As a further scheme of the present invention: The outer supporting mechanism includes second guiding columns which are fixed on the receiving plate and are symmetrically arranged. Second supporting plates are fixed at the ends of the second guiding columns. Second connecting rods are fixed on the second supporting plates. The second connecting rods are rotatably connected to the second clamping plates. An adjusting assembly connected to the second guiding columns is arranged on the receiving plate.

[0013] As a further scheme of the present invention: The adjusting assembly includes a second guiding sleeve slidably mounted on the second guiding column. A second connecting plate is fixed on the second guiding sleeve. A third air cylinder fixed to the second connecting plate is fixed on the receiving plate. A second connecting rod which is hinged to the second clamping plate is hinged on the second guiding sleeve.

[0014] As a further solution of the present invention: The driving assembly includes a motor fixedly installed on the processing table, a transmission rod rotatably installed on the processing table and connected to the output shaft of the motor, a small gear fixed to the end of the transmission rod, a rotating rod rotatably installed on the processing table, the rotating rod is fixedly connected to the rotating plate, and a large gear meshing with the small gear is fixed to the end of the rotating rod.

[0015] As a further solution of the present invention: The bending assembly includes a guide rail fixed to the rotating plate, a movable sleeve slidably installed on the guide rail, a movable plate fixed to the movable sleeve, the movable plate is fixedly connected to the supporting lower die, and a first cylinder fixedly connected to the movable plate is fixed to the rotating plate.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows: This application can respectively adjust the yaw angles of the first clamping plate and the second clamping plate to comprehensively clamp the inner and outer sides of the angle steel to ensure that the angle steel will not be displaced or the like during bending. Specifically, when it is necessary to clamp the angle steel, at this time, the outer clamping mechanism can be controlled to move through the translation assembly to drive the second clamping plate to move towards the first clamping plate. When the angle steel is placed between the second clamping plate and the first clamping plate, at this time, the first clamping plate and the second clamping plate can be respectively controlled to yaw through the inner clamping mechanism and the outer clamping mechanism, so as to clamp the inner side of the angle steel through the first clamping plate and clamp the outer side of the angle steel through the second clamping plate. After the clamping is completed, under the action of the driving assembly, the bending assembly is controlled to move through the rotating plate, so as to bend the angle steel through the supporting lower die and the arc upper die.

[0017] Since the reinforcing rib is located on the opposite side of the supporting lower die, the supporting force provided by the reinforcing rib to the connecting sleeve is opposite to the bending thrust provided by the supporting lower die to the connecting sleeve, and the bending thrust provided by the supporting lower die is constantly changing around the connecting sleeve. Moreover, the rotating rod will also drive the connecting sleeve to rotate, thereby driving the first rotating ring and the second rotating rod to move synchronously, so that the position of the reinforcing rib is constantly changing and always located on the opposite side of the supporting lower die, so as to ensure that the supporting force provided by the reinforcing rib is always opposite to the bending thrust generated by the supporting lower die, thereby realizing the balance of the bending thrust generated by the supporting lower die by continuously changing the supporting position of the reinforcing rib and ensuring the stability and firmness of the arc upper die at all times.

[0018] By adjusting the yaw angles of the first clamping plate and the second clamping plate, the first wedge block and the second wedge block are adaptively controlled to closely fit the inner and outer sides of the angle steel. When the first clamping plate and the second clamping plate are subjected to a tensile force, the first wedge block and the second wedge block can provide a supporting force to the first clamping plate and the second supporting plate, which can not only increase the clamping area and clamping strength of the angle steel clamping, avoid the displacement of the angle steel during bending, or cause deformation at the clamping position, resulting in the problem of reduced bending accuracy, but also achieve the effect of clamping angle steels of different specifications. Description of the Drawings

[0019] Figure 1 It is a schematic structural diagram of an embodiment of an inward bending die for the angle steel of a high-voltage iron tower.

[0020] Figure 2 It is an exploded structural diagram of a rotary support assembly, a connecting sleeve, and an arc upper die in an embodiment of an inward bending die for the angle steel of a high-voltage iron tower.

[0021] Figure 3 It is a schematic structural diagram of an embodiment of a stamping device.

[0022] Figure 4 It is a schematic structural diagram of another angle in an embodiment of a stamping device.

[0023] Figure 5 It is a schematic structural diagram of a driving assembly and a bending assembly in an embodiment of a stamping device.

[0024] Figure 6 It is an exploded structural diagram of a bending assembly and a supporting lower die in an embodiment of a stamping device.

[0025] Figure 7 It is a schematic diagram of the connection relationship of an inner side support mechanism, an outer side support mechanism, and a translation assembly in an embodiment of a stamping device.

[0026] Figure 8 It is a schematic structural diagram of an inner side support mechanism in an embodiment of a stamping device.

[0027] Figure 9 It is an exploded structural diagram of an inner side support mechanism in an embodiment of a stamping device.

[0028] Figure 10 It is a schematic structural diagram of an outer side support mechanism and a translation assembly in an embodiment of a stamping device.

[0029] Figure 11 It is an exploded structural diagram of an outer side support mechanism in an embodiment of a stamping device.

[0030] In the figure: 1. Connecting sleeve; 101. Limiting hole; 2. Arc upper die; 3. Fixed column; 4. First rotating ring; 5. Second rotating ring; 6. Reinforcing rib; 7. Processing table; 8. Motor; 9. Transmission rod; 10. Small gear; 11. Rotating rod; 12. Large gear; 13. Rotating plate; 1301. Guide rail; 14. Movable sleeve; 15. Movable plate; 16. First cylinder; 17. Supporting lower die; 18. Fixed plate; 19. First guide post; 20. First support plate; 21. First receiving rod; 22. First clamping plate; 2201. First wedge block; 23. First guide sleeve; 24. First connecting rod; 25. First connecting plate; 26. Second cylinder; 27. Lead screw; 28. Threaded sleeve; 29. Receiving plate; 30. Guide rod; 31. Sliding sleeve; 32. Second guide post; 33. Second support plate; 34. Second receiving rod; 35. Second clamping plate; 3501. Second wedge block; 36. Second guide sleeve; 37. Second connecting plate; 38. Second connecting rod; 39. Third cylinder. Detailed implementation mode

[0031] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0032] In addition, the elements in the present invention are referred to as "fixed to" or "disposed on" another element. It can be directly on another element or there can also be an intermediate element. When an element is considered to be "connected" to another element, it can be directly connected to another element or there may be an intermediate element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are only for the purpose of illustration and do not represent the only implementation manner.

[0033] Please refer to Figures 1 - 2 , in the embodiment of the present invention, the inward bending die for the angle steel of a high-voltage iron tower includes: a connecting sleeve 1, and a limiting hole 101 opened on the connecting sleeve 1; An arc upper die 2 is rotatably installed on the connecting sleeve 1. A fixed column 3 is fixed at the bottom of the arc upper die 2. A rotating support assembly connected to the arc upper die 2 is arranged on the connecting sleeve 1. The rotating support assembly includes a first rotating ring 4 and a second rotating ring 5 that are fixedly installed on the connecting sleeve 1 and are symmetrically arranged. The first rotating ring 4 is rotatably connected to the arc upper die 2. A reinforcing rib 6 fixedly connected to the first rotating ring 4 and the second rotating ring 5 is fixed on the connecting sleeve 1.

[0034] Please refer to Figures 3 - 11 , a stamping device, comprising: a processing table 7, and a fixing plate 18 fixed on the processing table 7; a driving assembly disposed on the processing table 7, a rotating plate 13 is connected to the driving assembly, a bending assembly is disposed on the rotating plate 13, a supporting lower die 17 is connected to the bending assembly, and the driving assembly can drive the supporting lower die 17 to move through the rotating plate 13 and the bending assembly; an inner side supporting mechanism disposed on the fixing plate 18, and first clamping plates 22 arranged symmetrically are connected to the inner side supporting mechanism; a translation assembly disposed on the processing table 7, an outer side supporting mechanism is disposed on the translation assembly, second clamping plates 35 arranged symmetrically are connected to the outer side supporting mechanism, and the translation assembly can drive the second clamping plates 35 to move towards or away from the first clamping plates 22 through the outer side supporting mechanism.

[0035] Specifically, a plurality of first wedge blocks 2201 and second wedge blocks 3501 are respectively fixed on the first clamping plate 22 and the second clamping plate 35. The connecting sleeve 1 is connected to the driving assembly, and the fixed column 3 is fixed on the processing table 7. When it is necessary to bend the angle steel, at this time, the outer support mechanism can be driven to move through the translation assembly to control the second clamping plate 35 to move towards the first clamping plate 22. When the angle steel is clamped between the first clamping plate 22 and the second clamping plate 35, under the action of the inner support mechanism, the yaw angle of the first clamping plate 22 is adjusted so that the first clamping plate 22 is in full contact with the inclined surface inside the angle steel. At the same time, under the action of the outer support mechanism, the second clamping plate 35 is controlled to be in full contact with the inclined surface outside the angle steel to ensure that the angle steel does not shake during bending. After the angle steel is fixed, the inner side surface of the angle steel will be in contact with the arc upper die 2. At this time, the support lower die 17 is controlled to move towards the arc upper die 2 through the bending assembly until both the arc upper die 2 and the support lower die 17 are in contact with the angle steel. Under the action of the driving assembly, the bending assembly is driven to move through the rotating plate 13 to bend the angle steel inwardly through the support lower die 17 and the arc upper die 2. By adjusting the yaw angles of the first clamping plate 22 and the second clamping plate 35, the first clamping plate 22 and the second clamping plate 35 can be made to fit tightly with the inner and outer inclined surfaces of the angle steel in all directions, significantly increasing the clamping area of the angle steel, thereby improving the stability and reliability of clamping. At the same time, with the unique design of the first wedge block 2201 and the second wedge block 3501, the clamping strength of the angle steel can be further enhanced to firmly lock the angle steel. When the angle steel is subjected to a bending force and then generates a pulling force on the first clamping plate 22 and the second clamping plate 35, due to the improvement of the clamping strength, the angle steel can always remain stable and will not displace, effectively ensuring that the bending angle and accuracy of the angle steel reach the best state.

[0036] Please refer to Figures 3 - 6 As shown in the figure, the driving assembly includes a motor 8 fixedly installed on the processing table 7. A transmission rod 9 connected to the output shaft of the motor 8 is rotatably installed on the processing table 7. A small gear 10 is fixed at the end of the transmission rod 9. A rotating rod 11 is also rotatably installed on the processing table 7. The rotating rod 11 is fixedly connected to the rotating plate 13. A large gear 12 meshing with the small gear 10 is fixed at the end of the rotating rod 11. The bending assembly includes a guide rail 1301 fixed on the rotating plate 13. A movable sleeve 14 is slidably installed on the guide rail 1301. A movable plate 15 is fixed on the movable sleeve 14. The movable plate 15 is fixedly connected to the support lower die 17. A first cylinder 16 fixedly connected to the movable plate 15 is fixed on the rotating plate 13.

[0037] It should be noted that when assembling the bending die, the connecting sleeve 1 and the rotating rod 11 can be sleeved with each other, and a fitting groove is formed at the end of the connecting sleeve 1 and a fitting block is fixed on the rotating rod 11 to be engaged with each other, so that the connecting sleeve 1 can rotate following the rotating rod 11. At the same time, the fixed column 3 is fixed on the processing table 7 by bolts or other means, so that the position of the arc upper die 2 is locked. At this time, the arc upper die 2 and the supporting lower die 17 are on the same horizontal plane. The arc upper die 2 is adapted to the inner side of the angle steel to be processed, and the supporting lower die 17 is adapted to the outer side of the angle steel. And at this time, the reinforcing rib 6 is located on the side of the arc upper die 2 away from the supporting lower die 17; Before starting to bend the angle steel, under the action of the first cylinder 16, the movable plate 15 is located at the end of the stroke in the direction away from the arc upper die 2, so that the distance between the supporting lower die 17 and the arc upper die 2 is the largest. When it is necessary to bend the angle steel, the angle steel can be fixed by the first clamping plate 22 and the second clamping plate 35. The inner side of the angle steel will be attached to the arc upper die 2. At this time, the first cylinder 16 works and pushes the movable plate 15 to move, thereby driving the movable sleeve 14 to slide along the length direction of the guide rail 1301. The movable plate 15 will also drive the supporting lower die 17 to move until the inclined surface of the supporting lower die 17 is attached to the outer side of the angle steel; Subsequently, the motor 8 works and drives the small gear 10 to rotate through the transmission rod 9. Since the small gear 10 and the large gear 12 are meshed, the large gear 12 rotates synchronously in the opposite direction, thereby driving the rotating rod 11 to rotate. The rotating rod 11 will drive the movable sleeve 14 to move through the rotating plate 13, so as to drive the supporting lower die 17 to move through the movable plate 15. Under the action of the supporting lower die 17, a bending force around the arc track of the arc upper die 2 is provided for the angle steel to bend the angle steel. At the same time, since the reinforcing rib 6 is located on the opposite side of the supporting lower die 17, the direction of the supporting force provided by it for the connecting sleeve 1 is opposite to the bending thrust provided by the supporting lower die 17 for the connecting sleeve 1. At the same time, the bending thrust generated by the supporting lower die 17 continuously changes around the connecting sleeve 1, and the rotating rod 11 drives the connecting sleeve 1 to rotate, and then drives the first rotating ring 4 and the second rotating ring 5 to move synchronously, so that the position of the reinforcing rib 6 continuously changes and is always on the opposite side of the supporting lower die 17. Such a design ensures that the supporting force provided by the reinforcing rib 6 is always opposite to the bending thrust generated by the supporting lower die 17. By continuously changing the supporting position of the reinforcing rib 6, the bending thrust generated by the supporting lower die 17 is effectively balanced, thereby ensuring the stability and firmness of the arc upper die 2 during the entire bending process, and avoiding problems such as die damage or bending precision decline caused by uneven force.

[0038] Preferably, after the rotating rod 11 rotates to the required bending angle, the supporting lower die 17 can be controlled to reset. Since there is a certain elastic stress inside the angle steel after bending, the angle steel may rebound. Therefore, the rotating rod 11 can be controlled to rotate again, and the angle steel can be bent again by the supporting lower die 17 until the generated elastic stress is eliminated, ensuring that the bending quality of the angle steel reaches the best state, effectively avoiding the bending angle deviation caused by rebound, and meeting the strict requirements for the bending quality of the angle steel of high-voltage transmission towers.

[0039] When bending the angle steel, a relatively large bending force is required. Driving the large gear 12 to rotate through the small gear 10 can amplify the torque of the power output by the motor 8. It can not only meet the requirements of the bending force, but also effectively reduce the load of the motor 8, ensure the safe operation of the motor 8, and avoid damage due to overload. At the same time, this transmission method can also accurately control the output speed, so as to accurately control the bending angle of the angle steel.

[0040] Please refer to Figure 3 、 Figure 4 、 Figures 7 - 9 As shown in

[0041] Specifically, before clamping the angle steel, under the action of the second cylinder 26, the first connecting plate 25 is located at the end of the stroke towards the fixed plate 18, so that the distance between the first guide sleeve 23 and the first support plate 20 is the largest. Under the action of the first connecting rod 24, the angle between the two first clamping plates 22 is the smallest and equal to the angle between them and the first support plate 20. A plurality of first wedge-shaped blocks 2201 are fixed on the mutually remote sides of the two first clamping plates 22 at equal intervals; When it is necessary to clamp the angle steel, since the cross-section of the angle steel is L-shaped, the inner inclined surface of the angle steel can be oriented towards the first clamping plate 22. Under the action of the translation assembly, the outer clamping mechanism controls the second clamping plate 35 to move towards the first clamping plate 22 until the angle steel is placed between the first clamping plate 22 and the second clamping plate 35. Since the included angle between the two first clamping plates 22 is smaller than the included angle of the angle steel, under the action of the second cylinder 26, the first connecting plate 25 is pushed to move, so that the first guide sleeve 23 moves along the length direction of the first guide post 19 and towards the first support plate 20. The first guide sleeve 23 also drives the first connecting rod 24 to move, so that the two first clamping plates 22 rotate around the first receiving rod 21, and the rotation angles are equal and the rotation directions are opposite. The included angle between the two first clamping plates 22 and the inner side surface of the angle steel gradually decreases until the first clamping plate 22 controls the first wedge block 2201 to be in complete fit with the inner side surface of the angle steel. At this time, the second cylinder 26 stops working.

[0042] Preferably, when performing the inward bending operation of the angle steel of the high-voltage tower, after the fixture clamps the angle steel, a bending force is applied to the angle steel through the mold to cause it to bend and deform. At this time, the angle steel will be subjected to a bending force pointing in the bending direction, and at the same time, a pulling force and a reaction force will be generated on the fixture at the clamping position. Since the yaw angle of the first clamping plate 22 is adjustable, when the included angle specification of the inner side of the angle steel itself changes, the yaw angle of the first clamping plate 22 can be adjusted to achieve adaptive control, so that the first wedge block 2201 is in close fit with the inner side of the angle steel. When the first clamping plate 22 is subjected to a pulling force, the first wedge block 2201 can provide a supporting force for it. This design not only increases the clamping area and strength of the angle steel, effectively avoids the displacement of the angle steel during the bending process or the deformation at the clamping position, thereby preventing the problem of reduced bending accuracy; but also can realize the clamping of angle steels of different specifications, greatly expanding the application range of the present application and meeting the requirements of bending processing of angle steels of high-voltage towers in different scenarios.

[0043] Please refer to Figure 3 、 Figure 4 、 Figure 7 、 Figure 10 、 Figure 11, the translation component includes a lead screw 27 rotatably mounted on the processing table 7. A threaded sleeve 28 is threadedly connected to the lead screw 27. A guide rod 30 is fixed on the processing table 7. A sliding sleeve 31 is slidably mounted on the guide rod 30. A receiving plate 29 fixedly connected to the threaded sleeve 28 is fixed on the sliding sleeve 31. The outer support mechanism includes second guide columns 32 symmetrically arranged and fixed on the receiving plate 29. A second support plate 33 is fixed at the end of the second guide column 32. A second receiving rod 34 is fixed on the second support plate 33. The second receiving rod 34 is rotatably connected to the second clamping plate 35. An adjusting component connected to the second guide column 32 is arranged on the receiving plate 29. Among them, the adjusting component includes a second guide sleeve 36 slidably mounted on the second guide column 32. A second connecting plate 37 is fixed on the second guide sleeve 36. A third cylinder 39 fixedly connected to the second connecting plate 37 is fixed on the receiving plate 29. A second connecting rod 38 hinged to the second clamping plate 35 is hinged on the second guide sleeve 36.

[0044] Furthermore, a plurality of second wedge-shaped blocks 3501 are fixed on one side of the two second clamping plates 35 facing away from each other. When clamping the angle steel, since the wall thickness of the angle steel to be clamped may be different and the included angle of the angle steel may also be different, it is necessary to adjust the distance between the second clamping plate 35 and the first clamping plate 22, as well as the included angle between the two second clamping plates 35. In the initial state, under the action of the lead screw 27, the threaded sleeve 28 is located at the end of the stroke in the direction away from the first clamping plate 22, so that the distance between the second clamping plate 35 and the first clamping plate 22 is the largest. Under the action of the third cylinder 39, the second connecting plate 37 and the second guide sleeve 36 are located at the end of the stroke in the direction away from the second support plate 33, so as to control the included angle between the two second clamping plates 35 to be the largest through the second connecting rod 38 and the included angle with the second support plate 33 is the same; When the angle steel needs to be clamped, the screw rod 27 rotates and drives the threaded sleeve 28 to move, thereby driving the receiving plate 29 to move. The receiving plate 29 will control the sliding sleeve 31 to move along the length direction of the guide rod 30. Since the guide rod 30 and the sliding sleeve 31 have a guiding function, it can ensure that the threaded sleeve 28 moves along the length direction of the screw rod 27 and will not rotate with the screw rod 27. The receiving plate 29 will also drive the second guide column 32 to move to control the second clamping plate 35 to move toward the first clamping plate 22. When the angle steel is fixed in When the first clamping plate 22 and the second clamping plate 35 are between them, the screw rod 27 stops rotating. At this time, the second connecting plate 37 can be pushed to move by the third cylinder 39, thereby driving the second guide sleeve 36 to move along the length direction of the second guide column 32, so as to control the two second clamping plates 35 to rotate around the second supporting rod 34 through the second connecting rod 38, and the rotation directions are opposite and the rotation angles are the same. When the second wedge blocks 3501 on the two second clamping plates 35 are fully fitted with the outer side of the angle steel, the third cylinder 39 stops moving. At this time, the angle steel is completely clamped.

[0045] Preferably, by adjusting the deflection angles of the first clamping plate 22 and the second clamping plate 35 respectively, the inside and outside of the angle steel can be fully clamped. This design not only increases the clamping area of the angle steel, so that the angle steel is clamped stably in all directions, but also further enhances the clamping strength of the angle steel through the first wedge block 2201 and the second wedge block 3501. During the bending process of the angle steel, this comprehensive and high-strength clamping method can effectively prevent the displacement or shaking of the angle steel, ensure the accuracy and stability of the bending operation, and thus improve the quality and efficiency of the angle steel bending.

[0046] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0047] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. High-voltage tower angle steel inward bending die, characterized in that, Comprising: A connecting sleeve, and a limiting hole opened on the connecting sleeve; An arc-shaped upper die, rotatably installed on the connecting sleeve, a fixing column is fixed at the bottom of the arc-shaped upper die, and a rotating support assembly connected to the arc-shaped upper die is arranged on the connecting sleeve.

2. The inward bending die for the angle steel of a high-voltage transmission tower according to claim 1, characterized in that The rotating support assembly includes a first rotating ring and a second rotating ring that are symmetrically arranged and fixedly installed on the connecting sleeve. The first rotating ring is rotatably connected to the arc-shaped upper die, and a reinforcing rib fixedly connected to the first rotating ring and the second rotating ring is fixed on the connecting sleeve.

3. A stamping device, comprising the high-voltage tower angle steel inward bending die according to any one of claims 1-2, characterized in that, Comprising: A processing table, and a fixing plate fixed on the processing table; A driving assembly, arranged on the processing table, a rotating plate is connected to the driving assembly, a bending assembly is arranged on the rotating plate, a supporting lower die is connected to the bending assembly, and the driving assembly can drive the supporting lower die to move through the rotating plate and the bending assembly; An inner supporting mechanism, arranged on the fixing plate, a first clamping plate arranged symmetrically is connected to the inner supporting mechanism; A translation assembly, arranged on the processing table, an outer supporting mechanism is arranged on the translation assembly, a second clamping plate arranged symmetrically is connected to the outer supporting mechanism, and the translation assembly can drive the second clamping plate to move towards or away from the first clamping plate through the outer supporting mechanism.

4. The stamping equipment according to claim 3, characterized in that The inner supporting mechanism includes first guiding columns that are symmetrically arranged and fixed on the fixing plate. A first supporting plate is fixed at the end of the first guiding column. A first connecting rod is fixed on the first supporting plate. The first connecting rod is rotatably connected to the first clamping plate, and a pushing assembly connected to the first guiding column is arranged on the fixing plate.

5. The stamping equipment according to claim 4, characterized in that, The pushing assembly includes a first guiding sleeve slidably installed on the first guiding column. A first connecting plate is fixed on the first guiding sleeve. A second air cylinder fixedly connected to the first connecting plate is fixed on the fixing plate. A first connecting rod hinged to the first clamping plate is hinged on the first guiding sleeve.

6. The stamping device according to claim 3, characterized in that, The translation assembly includes a lead screw rotatably installed on the processing table. A threaded sleeve is threadedly connected to the lead screw. A guiding rod is fixed on the processing table. A sliding sleeve is slidably installed on the guiding rod. A connecting plate fixedly connected to the threaded sleeve is fixed on the sliding sleeve.

7. The stamping device according to claim 6, characterized in that, The outer supporting mechanism includes second guiding columns that are symmetrically arranged and fixed on the connecting plate. A second supporting plate is fixed at the end of the second guiding column. A second connecting rod is fixed on the second supporting plate. The second connecting rod is rotatably connected to the second clamping plate, and an adjusting assembly connected to the second guiding column is arranged on the connecting plate.

8. The stamping equipment according to claim 7, characterized in that, The adjusting assembly includes a second guiding sleeve slidably installed on the second guiding column. A second connecting plate is fixed on the second guiding sleeve. A third air cylinder fixedly connected to the second connecting plate is fixed on the connecting plate. A second connecting rod hinged to the second clamping plate is hinged on the second guiding sleeve.

9. The stamping equipment according to claim 3, characterized in that, The driving component includes a motor fixedly installed on the processing table. A transmission rod connected to the output shaft of the motor is rotatably installed on the processing table. A small gear is fixed to the end of the transmission rod. A rotating rod is also rotatably installed on the processing table. The rotating rod is fixedly connected to the rotating plate, and a large gear meshing with the small gear is fixed to the end of the rotating rod.

10. The stamping equipment according to claim 3, characterized in that, The bending component includes a guide rail fixed on the rotating plate. A movable sleeve is slidably installed on the guide rail. A movable plate is fixed to the movable sleeve. The movable plate is fixedly connected to the supporting lower die. A first cylinder fixedly connected to the movable plate is fixed on the rotating plate.

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