Bending device for steel structure machining

Abstract

The invention discloses a bending device for steel structure processing, which belongs to the technical field of metal processing and comprises a mounting assembly, a bending assembly for bending H-shaped steel is mounted on the mounting assembly, and an auxiliary frame assembly for guiding and limiting the H-shaped steel is mounted on the mounting assembly. By means of the mode, H-shaped steel of different sizes is bent through the bending assembly, meanwhile, straight heads of the H-shaped steel of different sizes can be reduced, the H-shaped steel of different sizes is limited and guided through the auxiliary frame assembly, the auxiliary frame assembly is designed in a combined mode, and parts can be independently replaced; the initial section of the bent H-shaped steel is automatically supported and automatically pressed and limited through the second supporting vehicle, the tail section of the bent H-shaped steel is supported through the first supporting vehicle, meanwhile, the first supporting vehicle and the second supporting vehicle are matched so that feeding of the H-shaped steel can be more convenient, and the manual adjusting and positioning time is shortened.

Description

Technical Field

[0001] The present invention relates to the technical field of metal processing, and in particular to a bending device for processing steel structures. Background Art

[0002] In modern architecture, machinery manufacturing, and various infrastructure construction fields, steel structures have become a widely used building and engineering material due to their significant advantages such as high strength, light weight, and convenient construction. With the rapid development of industrial technology and the continuous increase in the scale and complexity of various projects, the demand for precision, efficiency, and diversity in steel structure processing is increasing.

[0003] Bending is a critical and common process in steel structure fabrication. It transforms straight steel into curved shapes that meet diverse design requirements, enabling diverse spatial arrangements and connections. However, current bending devices for steel structure fabrication still face numerous challenges and issues in practical application, hindering the further development of the steel structure fabrication industry.

[0004] Traditional bending equipment often has limited functionality, capable of bending only steel structures of specific specifications and shapes. When encountering H-beams of varying sizes and materials, replacing molds or performing complex equipment adjustments consumes significant time and manpower, severely impacting production efficiency and making it difficult to adapt to modern, large-scale, high-efficiency production requirements. Furthermore, when bending H-beams of varying sizes, limitations in the device design often result in long straight sections at the beginning and end of the bend. This not only wastes raw materials and increases production costs, but also reduces overall product quality and raw material utilization.

[0005] Existing bending devices also have shortcomings in terms of equipment stability and maintenance. Some bending devices are prone to structural loosening and component wear during prolonged, high-intensity operation, resulting in unstable equipment operation and reduced processing accuracy. Furthermore, when localized damage occurs, the monolithic design often requires disassembly, repair, or even replacement of the entire device. This not only significantly increases the cost and time of equipment maintenance, but also severely impacts production continuity, resulting in significant economic losses for the company.

[0006] In terms of automation, many bending devices still rely heavily on manual labor. Loading and unloading steel often involves cranes with manual assistance, resulting in a fluid and unsafe production process, making it difficult to meet the efficiency, precision, and automation requirements of modern production.

[0007] Based on this, the present invention designs a bending device for steel structure processing to solve the above problems. Summary of the Invention

[0008] The technical problem to be solved by the present invention is to overcome the shortcomings of the above-mentioned prior art and provide a bending device for steel structure processing.

[0009] The technical solutions adopted to solve the above technical problems are: A bending device for processing steel structures, comprising a mounting assembly, a bending assembly for bending H-shaped steel mounted on the mounting assembly, an auxiliary frame assembly for guiding and limiting the H-shaped steel mounted on the mounting assembly, the auxiliary frame assembly comprising four groups, two groups on the left and two groups on the right being symmetrical, the mounting assembly being connected to a feed-in and feed-out support assembly for supporting the loading and unloading of the H-shaped steel, the feed-in and feed-out support assembly automatically supporting the front end of the bent H-shaped steel; The material inlet and outlet support assembly includes a first support trolley and a second support trolley. The first support trolley is connected to the installation assembly and the second support trolley. The second support trolley can automatically press and support the bent H-shaped steel.

[0010] Through the above technical solution, H-shaped steels of different sizes are bent by the bending assembly, and the straight ends of H-shaped steels of different sizes are reduced, thereby reducing the waste of materials in the processing process, directly reducing the production cost, and improving the utilization rate of raw materials. The H-shaped steels of different sizes are limited and guided by the auxiliary frame assembly. The auxiliary frame assembly adopts a modular design and can replace parts individually. When local damage occurs to the equipment, the damaged parts can be replaced individually without replacing the entire equipment or performing large-scale repairs, which greatly reduces the cost and time cost of equipment maintenance and improves the service life and stability of the equipment. The second support trolley automatically supports the starting section of the H-beam that has been bent and automatically presses down to limit the position. The first support trolley supports the ending section of the H-beam that has been bent, and simultaneously presses down to limit the position of the ending section of the H-beam when the first support trolley moves away. At the same time, when the second support trolley presses down to limit the position of the starting section of the H-beam, the second support trolley is synchronously unlocked with the first support trolley, so that the second support trolley moves with the starting section of the H-beam, making the processing process smoother and more efficient, speeding up the production rhythm and improving efficiency. At the same time, the cooperation between the first support trolley and the second support trolley can make the loading of the H-beam more convenient, reducing the time of manual adjustment and positioning.

[0011] Furthermore, the mounting assembly includes a mounting base, an upper mounting frame, a lower mounting frame, a guide plate, a limit slot and a first mounting plate, the upper mounting frame is fixedly mounted on the front end of the upper end surface of the mounting base, the upper end surface of the upper mounting frame is fixedly mounted with a console, the lower mounting frame is symmetrically arranged with two groups of respectively fixedly mounted on the inner top surface of the mounting base, the guide plates have two groups respectively fixedly mounted on the outermost ends of the inner bottom surface of the lower mounting frame, and the two groups of guide plates are centrally symmetrical, and the upper ends of the two groups of guide plates are respectively provided with limit slots, the guide plates and the limit slots are connected to the first support vehicle, the first mounting plate is fixedly mounted on the rear end of the upper end surface of the mounting base, the first mounting plate is connected to the bending assembly and the auxiliary frame assembly, and the mounting base is connected to the bending assembly and the auxiliary frame assembly.

[0012] Through the above technical solution, both ends of the device can be combined with the feed and discharge support components through the two sets of guide plates and the limiting grooves on the two sets of guide plates, which reduces the time for manual adjustment and positioning and improves production efficiency.

[0013] Furthermore, the bending assembly includes a pressure assembly, a driving assembly and an auxiliary bending assembly, the pressure assembly and the driving assembly are connected to the mounting base, the driving assembly and the auxiliary bending assembly are respectively provided in two groups symmetrically on the left and right, and the auxiliary bending assembly is connected to the mounting base and the first mounting plate; The pressure assembly includes a hydraulic cylinder, a first mounting frame, a first roller and a first linear guide rail. The hydraulic cylinder is fixedly mounted on the upper end surface of the mounting base. The hydraulic cylinder is fixedly mounted on the upper end surface of the mounting base. The output end of the hydraulic cylinder is hinged to the front end of the first mounting frame. The first roller is rotatably mounted on the inner end of the first mounting frame. Two groups of the first linear guide rails are arranged on the left and right and are both fixedly mounted on the upper end surface of the mounting base. The lower end surface of the first mounting frame is fixedly connected to the sliders on the two groups of the first linear guide rails.

[0014] Through the above technical solution, the first mounting frame is driven by the hydraulic cylinder, and the first mounting frame slides on the first linear guide rail. At the same time, the first mounting frame drives the first roller forward to cooperate with the driving assembly and the auxiliary bending assembly to bend the H-shaped steel.

[0015] Furthermore, the driving assembly includes a second mounting frame, a driving roller and a reduction motor. The second mounting frame is fixedly mounted on the upper end surface of the mounting base, the driving roller is rotatably mounted on the inner end of the second mounting frame, the reduction motor is fixedly mounted on the upper end surface of the second mounting frame, and the output end of the reduction motor is fixedly connected to the upper end of the driving roller.

[0016] Through the above technical solution, the reduction motor drives the driving roller to rotate, thereby driving the H-shaped steel to move. At the same time, the two sets of driving rollers cooperate with the pressure component to bend the H-shaped steel.

[0017] Furthermore, the auxiliary bending assembly includes a second linear guide rail, a third mounting bracket, an auxiliary roller, a first threaded rod and a first nut, the second linear guide rail is fixedly mounted on the upper end surface of the mounting base, the lower end surface of the third mounting bracket is fixedly connected to the slider on the second linear guide rail, the auxiliary roller is rotatably mounted on the inner end of the third mounting bracket, the front end of the first threaded rod is rotatably connected to the rear end surface of the third mounting bracket, the first threaded rod is threadedly connected to the first mounting plate, a pin hole is provided at the rear end of the first threaded rod, and the first nut is tightened on the first threaded rod and cooperates with the first mounting plate to fasten the first threaded rod.

[0018] Through the above technical solution, by setting two sets of auxiliary rollers to reduce the distance between the pressure point and the initial and end sections of the H-shaped steel, the straight head of the H-shaped steel is shortened, the utilization rate of raw materials is improved, and the economic benefits are improved. The first threaded rod is threadedly connected to the first mounting plate, the first threaded rod drives the third mounting bracket, the third mounting bracket slides with the second linear guide rail, and the third mounting bracket drives the auxiliary rollers to adjust the distance to adapt to different bending angles. The first threaded rod is tightened on the first threaded rod through the first nut and tightened in cooperation with the first mounting plate.

[0019] Furthermore, the auxiliary frame assembly includes an adjustment assembly and auxiliary rollers. The adjustment assembly is symmetrically arranged in two groups front and back, and the auxiliary rollers are arranged in two groups up and down. The adjustment assembly is connected to the mounting base, and the auxiliary rollers are connected to the adjustment assembly.

[0020] Through the above technical solution, the H-shaped steel is located between the two sets of auxiliary rollers, and the two sets of auxiliary rollers are adjusted by the adjustment assembly to limit and guide the H-shaped steels of different sizes.

[0021] Furthermore, the adjustment assembly includes a C-shaped plate, an L-shaped plate, a first sliding rod, a second threaded rod and a movable part, the L-shaped plate is fixedly mounted on the upper end surface of the mounting base, the C-shaped plate is fixedly mounted on the upper end surface of the L-shaped plate, the first sliding rod is fixedly mounted on the upper and lower inner side walls of the C-shaped plate, the lower end of the second threaded rod is rotatably connected to the outer upper end surface of the movable part, the movable part is slidably connected to the first sliding rod, the second threaded rod is threadedly connected to the upper end of the C-shaped plate, and a pin hole is opened at the upper end of the second threaded rod.

[0022] Through the above technical solution, the second threaded rod drives the movable part, the movable part slides on the first slide rod, and is guided by the first slide rod. The movable part drives the auxiliary roller at the upper end to adjust, thereby realizing the limitation and guidance of H-shaped steels of different sizes.

[0023] Furthermore, the auxiliary roller includes a mounting rod, a first clamping block, a limiting ring piece, an assembly ring and a second nut, and the first clamping block is symmetrically arranged in two groups front and back, and the front and rear two groups of first clamping blocks located in the upper auxiliary roller are respectively detachably connected to the inner end surfaces of the front and rear two groups of movable parts, and the front and rear two groups of first clamping blocks located in the lower auxiliary roller are respectively detachably connected to the front and rear two groups of L-shaped plates, and the inner end of the first clamping block is a groove that cooperates with the two ends of the mounting rod for plugging and rotatable connection, and the limiting ring piece is fixedly installed on the rear end of the outer wall of the mounting rod, and the assembly ring is arranged in a front and rear manner and is sleeved on the mounting rod, and the rear side wall of the assembly ring at the rearmost end is in conflict with the front side wall of the limiting ring piece, and the front end face of the assembly ring at the frontmost side is in conflict with the rear side wall of the second nut, and the mounting rod is provided with a thread at the front, and the second nut is threadedly connected to the thread at the front end of the mounting rod, and the multiple groups of assembly rings are fixed by tightening the second nut on the thread.

[0024] Through the above technical solution, by arranging multiple sets of assembly rings on the mounting rod, the assembly rings can be replaced individually when they are worn, without the need to replace the entire equipment or perform large-scale repairs, thereby greatly reducing the cost and time cost of equipment maintenance. The two ends of the mounting rod rotate in the grooves on the movable parts at both ends, and can rotate synchronously when the H-shaped steel moves, reducing the wear of the assembly rings and the H-shaped steel.

[0025] The cam is connected to the first supporting plate by the spring, and the cam is connected to the first supporting plate by the spring, and the cam is connected to the first supporting plate by the spring. The locking plate is fixedly mounted on the left side of the first connecting plate, and the lower end faces of the four sliding links of the four groups are fixedly connected to the upper end face of the first connecting plate, and the lower end faces of the four sliding links of the four groups are fixedly connected to the upper end face of the first connecting plate.

[0026] When the first supporting trolley is pulled out and the first pressure plate is pressed down and limited by the action of the first spring, the limiting plate is driven to rise and cooperate with the second supporting trolley to limit the second supporting trolley when the first connecting plate rises.

[0027] Furthermore, the second supporting vehicle includes a second frame, a second universal roller, a second top plate, a second mounting vertical plate, a second roller, a third slide bar, a second spring, a second connecting plate, a second mounting plate, a plug rod, a third mounting plate, a second clamping block, a fourth mounting plate, a third clamping block, a third connecting plate, a T-shaped baffle, a fourth slide bar, a fifth mounting plate, a third spring and a second pressure plate, the second universal roller is rectangular and four-point-type, and four groups are fixedly mounted on the lower end surface of the second frame, the lower end surface of the second top plate is fixedly connected to the upper end surface of the second frame, the second mounting vertical plate is symmetrically arranged in two groups front and back, and the second The cam is connected to the second mounting plate on the front side by a plurality of groups of second rollers, and the rear ends of the plurality of second rollers are connected to the second mounting plate on the rear side by a plurality of groups of second rollers. The third slide bar is provided with four groups of rectangular four-point type limited sliding connections with the second top plate. The upper end surfaces of the four groups of third slide bars are fixedly connected to the lower end surface of the second pressure plate, and the lower end surfaces of the four groups of third slide bars are fixedly connected to the upper end surface of the second connecting plate. The second spring is provided with four groups of rectangular four-point type respectively sleeved on the lower ends of the four groups of third slide bars, the upper ends of the four groups of second springs are fixedly connected to the lower end surface of the second top plate, and the lower ends of the four groups of second springs are fixedly connected. The second fixing plate is fixedly mounted on the left side of the first fixing plate, and the fixing plate is fixedly mounted on the left side of the first fixing plate. The upper end surface of the fourth mounting plate is fitted with a sliding connection, and the fifth mounting plate is arranged in two groups front and back, both of which are fixedly mounted on the lower end surface of the second top plate, and the fourth sliding rods are arranged in two groups front and back, respectively, and are slidingly connected to the two groups of fifth mounting plates, and the right end surface of the fourth sliding rod is fixedly connected to the left end surface of the third connecting plate. The third spring is arranged in two groups front and back, respectively, and is sleeved on the right ends of the two groups of fourth sliding rods, and the left ends of the two groups of third springs are fixedly connected to the right end surfaces of the two groups of fifth mounting plates, and the right ends of the two groups of third springs are fixedly connected to the left end surfaces of the two groups of third connecting plates, and the right end surface of the T-shaped baffle is fixedly connected to the upper left end surface of the third connecting plate.

[0028] When the cam is in the state of being pressed down, the second support vehicle can be moved flexibly by the second universal roller, and the second pressure plate in the second support vehicle is pulled up to a non-pressed state. When the limit plate rises and the insertion rod is inserted into the insertion hole, the second support vehicle is locked. At the same time, the inclined surface on the second clamping block cooperates with the inclined surface on the third clamping block to fit the sliding connection and move the fourth mounting plate away. When the third mounting plate moves to the upper end of the fourth mounting plate, the fourth mounting plate is reset under the action of the third spring. At the initial section of the H-shaped steel, the second roller moves to the T-shaped baffle, squeezing the T-shaped baffle so that the T The shaped baffle drives the third connecting plate, and the third connecting plate drives the fourth sliding rod to slide on the fifth mounting plate. At the same time, the third connecting plate drives the fourth mounting plate to move away, thereby releasing the limit on the third mounting plate. Under the action of the second spring, the second connecting plate descends, and the second connecting plate drives the third sliding rod, and the third sliding rod drives the second pressure plate to descend to press down the initial section of the H-shaped steel to limit it. At the same time, the second connecting plate descends and drives the second mounting plate, and the second mounting plate drives the insertion rod to move out of the insertion hole, thereby automatically pressing down the initial section of the H-shaped steel and automatically unlocking it from the first supporting vehicle.

[0029] The beneficial effects of the present invention are as follows: (1) H-shaped steels of different sizes are bent by the bending assembly, and the straight ends of H-shaped steels of different sizes are reduced, thereby reducing material waste during the processing process, directly reducing production costs, and improving the utilization rate of raw materials; (2) H-shaped steels of different sizes are limited and guided by the auxiliary frame assembly. The auxiliary frame assembly adopts a modular design and can replace components individually, so that when local damage occurs to the equipment, the damaged components can be replaced individually without replacing the entire equipment or performing large-scale repairs, which greatly reduces the cost and time cost of equipment maintenance and improves the service life and stability of the equipment. (3) The second support vehicle automatically supports the starting section of the H-shaped steel after bending and automatically presses it down to limit the position. The first support vehicle supports the ending section of the H-shaped steel after bending and simultaneously presses the ending section of the H-shaped steel down to limit the position when the first support vehicle moves away. At the same time, when the second support vehicle presses the starting section of the H-shaped steel down to limit the position, the second support vehicle is synchronously unlocked with the first support vehicle, so that the second support vehicle moves with the starting section of the H-shaped steel, making the processing process smoother and more efficient, speeding up the production rhythm and improving efficiency. At the same time, the cooperation between the first support vehicle and the second support vehicle can make the loading of the H-shaped steel more convenient and reduce the time of manual adjustment and positioning. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 A three-dimensional bending device for steel structure processing according to the present invention Figure 1 ; Figure 2 This is a front view of a bending device for steel structure processing according to the present invention; Figure 3 A three-dimensional bending device for steel structure processing according to the present invention Figure 2; Figure 4 A three-dimensional bending device for steel structure processing according to the present invention Figure 3 ; Figure 5 is a schematic diagram of a first support vehicle; Figure 6 is a schematic diagram of the connection between the first support vehicle and the second support vehicle; Figure 7 is a schematic diagram of an auxiliary frame assembly; Figure 8 for Figure 4 Enlarged view of point A in the middle; Figure 9 for Figure 6 Enlarged view of point B in the middle.

[0031] Reference numerals: 1. Mounting assembly; 11. Mounting base; 12. Upper mounting frame; 13. Lower mounting frame; 14. Guide plate; 15. Limiting groove; 16. First mounting plate; 2. Bending assembly; 21. Pressure assembly; 211. Hydraulic cylinder; 212. First mounting frame; 213. First roller; 214. First linear guide; 22. Drive assembly; 221. Second mounting frame; 222. Drive roller; 223. Reducer motor; 23. Auxiliary bending assembly; 231. Second linear guide; 23 2. Third mounting frame; 233. Auxiliary roller; 234. First threaded rod; 235. First nut; 3. Auxiliary frame assembly; 31. Adjustment assembly; 311. C-shaped plate; 312. L-shaped plate; 313. First slide rod; 314. Second threaded rod; 315. Movable part; 32. Auxiliary roller; 321. Mounting rod; 322. First clamping block; 323. Limiting ring; 324. Assembly ring; 325. Second nut; 4. Infeed and outfeed support assembly; 41. First support vehicle; 411 , first vehicle frame; 412, first universal roller; 413, first top plate; 414, first mounting plate; 415, first roller; 416, second slide bar; 417, first spring; 418, first connecting plate; 419, limit plate; 4110, jack; 4111, mounting bracket; 4112, second roller; 4113, first pressure plate; 42, second support vehicle; 421, second vehicle frame; 422, second universal roller; 423, second top plate; 424, second mounting plate Plate; 425, second roller; 426, third slide bar; 427, second spring; 428, second connecting plate; 429, second mounting plate; 4210, plug rod; 4211, third mounting plate; 4212, second clamping block; 4213, fourth mounting plate; 4214, third clamping block; 4215, third connecting plate; 4216, T-shaped baffle; 4217, fourth slide bar; 4218, fifth mounting plate; 4219, third spring; 4220, second pressure plate; 5, control console. DETAILED DESCRIPTION

[0032] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0033] The terms “left,” “right,” “front,” “back,” “up,” and “down” mentioned in the following description are oriented in the viewing direction of the front view.

[0034] Example 1: In some embodiments, please refer to the accompanying drawings of the specification. Figures 1-9 A bending device for steel structure processing includes a mounting assembly 1, a bending assembly 2 for bending H-shaped steel is installed on the mounting assembly 1, an auxiliary frame assembly 3 for guiding and limiting the H-shaped steel is installed on the mounting assembly 1, and there are four groups of auxiliary frame assemblies 3, and the two groups on the left are symmetrical with the two groups on the right. The mounting assembly 1 is connected to a feed and discharge support assembly 4 for supporting the loading and unloading of the H-shaped steel, and the front end of the bent H-shaped steel is automatically supported by the feed and discharge support assembly 4.

[0035] The mounting assembly 1 includes a mounting base 11, an upper mounting frame 12, a lower mounting frame 13, a guide plate 14, a limiting groove 15 and a first mounting plate 16. The upper mounting frame 12 is fixedly mounted on the front end of the upper end surface of the mounting base 11, and the upper end surface of the upper mounting frame 12 is fixedly mounted with a console 5. The lower mounting frame 13 is symmetrically provided with two groups of guide plates 14 respectively fixedly mounted on the inner top surface of the mounting base 11. There are two groups of guide plates 14 respectively fixedly mounted on the outermost ends of the inner bottom surface of the lower mounting frame 13, and the two groups of guide plates 14 are centrally symmetrical. The upper ends of the two groups of guide plates 14 are respectively provided with limiting grooves 15, and the guide plates 14 and the limiting grooves 15 are connected to the first supporting vehicle 41. The first mounting plate 16 is fixedly mounted on the rear end of the upper end surface of the mounting base 11. The first mounting plate 16 is connected to the bending assembly 2 and the auxiliary frame assembly 3, and the mounting base 11 is connected to the bending assembly 2 and the auxiliary frame assembly 3.

[0036] The bending assembly 2 includes a pressure assembly 21, a driving assembly 22 and an auxiliary bending assembly 23. The pressure assembly 21 and the driving assembly 22 are connected to the mounting base 11. The driving assembly 22 and the auxiliary bending assembly 23 are respectively arranged in two groups symmetrically on the left and right. The auxiliary bending assembly 23 is connected to the mounting base 11 and the first mounting plate 16.

[0037] The pressure-applying assembly 21 includes a hydraulic cylinder 211, a first mounting frame 212, a first roller 213 and a first linear guide rail 214. The hydraulic cylinder 211 is fixedly mounted on the upper end surface of the mounting base 11. The hydraulic cylinder 211 is fixedly mounted on the upper end surface of the mounting base 11. The output end of the hydraulic cylinder 211 is hinged to the front end of the first mounting frame 212. The first roller 213 is rotatably mounted on the inner end of the first mounting frame 212. Two groups of first linear guide rails 214 are arranged on the left and right, both of which are fixedly mounted on the upper end surface of the mounting base 11. The lower end surface of the first mounting frame 212 is fixedly connected to the sliders on the two groups of first linear guide rails 214.

[0038] The driving assembly 22 includes a second mounting frame 221, a driving roller 222 and a reduction motor 223. The second mounting frame 221 is fixedly mounted on the upper end surface of the mounting base 11, the driving roller 222 is rotatably mounted on the inner end of the second mounting frame 221, and the reduction motor 223 is fixedly mounted on the upper end surface of the second mounting frame 221. The output end of the reduction motor 223 is fixedly connected to the upper end of the driving roller 222.

[0039] The auxiliary bending assembly 23 includes a second linear guide rail 231, a third mounting frame 232, an auxiliary roller 233, a first threaded rod 234 and a first nut 235. The second linear guide rail 231 is fixedly mounted on the upper end surface of the mounting base 11, the lower end surface of the third mounting frame 232 is fixedly connected to the slider on the second linear guide rail 231, the auxiliary roller 233 is rotatably mounted on the inner end of the third mounting frame 232, the front end of the first threaded rod 234 is rotatably connected to the rear end surface of the third mounting frame 232, the first threaded rod 234 is threadedly connected to the first mounting plate 16, and a pin hole is provided at the rear end of the first threaded rod 234. The first nut 235 is tightened on the first threaded rod 234 and cooperates with the first mounting plate 16 to fasten the first threaded rod 234.

[0040] The auxiliary frame assembly 3 includes an adjustment assembly 31 and auxiliary rollers 32. The adjustment assembly 31 is symmetrically arranged in two groups in the front and back, and the auxiliary rollers 32 are arranged in two groups in the upper and lower parts. The adjustment assembly 31 is connected to the mounting base 11, and the auxiliary rollers 32 are connected to the adjustment assembly 31.

[0041] The adjusting assembly 31 includes a C-shaped plate 311, an L-shaped plate 312, a first slide rod 313, a second threaded rod 314 and a movable part 315. The L-shaped plate 312 is fixedly mounted on the upper end surface of the mounting base 11, the C-shaped plate 311 is fixedly mounted on the upper end surface of the L-shaped plate 312, the first slide rod 313 is fixedly mounted on the upper and lower inner side walls of the C-shaped plate 311, the lower end of the second threaded rod 314 is rotatably connected to the outer upper end surface of the movable part 315, the movable part 315 is slidably connected to the first slide rod 313, the second threaded rod 314 is threadedly connected to the upper end of the C-shaped plate 311, and a pin hole is opened at the upper end of the second threaded rod 314.

[0042] The auxiliary roller 32 includes a mounting rod 321, a first clamping block 322, a limiting ring piece 323, an assembly ring 324 and a second nut 325. The first clamping block 322 is symmetrically arranged in two groups. The front and rear groups of the first clamping block 322 in the upper auxiliary roller 32 are detachably connected to the inner end surfaces of the front and rear groups of movable parts 315 respectively. The front and rear groups of the first clamping block 322 in the lower auxiliary roller 32 are detachably connected to the front and rear groups of L-shaped plates 312 respectively. The inner end of the first clamping block 322 is a groove that is plugged and rotatably connected to the two ends of the mounting rod 321. The limiting ring 323 is a groove that is plugged and rotatably connected to the two ends of the mounting rod 321. The ring piece 323 is fixedly installed on the rear end of the outer wall of the mounting rod 321, and multiple groups of assembly rings 324 are arranged in front and back and are all sleeved on the mounting rod 321. The rear side wall of the assembly ring 324 at the rear end is in contact with the front side wall of the limiting ring piece 323, and the front end face of the assembly ring 324 at the front end is in contact with the rear side wall of the second nut 325. A thread is opened at the front of the mounting rod 321, and the second nut 325 is threadedly connected to the thread at the front end of the mounting rod 321. The multiple groups of assembly rings 324 are fixed by tightening the second nut 325 on the thread.

[0043] The inlet and outlet support assembly 4 includes a first support trolley 41 and a second support trolley 42. The first support trolley 41 is connected to the installation assembly 1 and the second support trolley 42. The second support trolley 42 can automatically press and support the bent H-shaped steel.

[0044] The first supporting vehicle 41 includes a first frame 411, a first universal roller 412, a first top plate 413, a first mounting vertical plate 414, a first rotating roller 415, a second sliding rod 416, a first spring 417, a first connecting plate 418, a limiting plate 419, a socket 4110, a mounting bracket 4111, a second roller 4112 and a first pressing plate 4113. The first universal roller 412 is arranged in a rectangular four-point manner with four groups fixedly mounted on the lower end surface of the first frame 411. The lower end surface of the first top plate 413 is aligned with the first frame 411. The upper end surface of the first mounting plate 413 is fixedly connected, and the first mounting vertical plate 414 is symmetrically provided with two groups front and back, both of which are fixedly installed on the upper end surface of the first top plate 413. There are multiple groups of first rotating rollers 415 arranged left and right, and the front ends of the multiple groups of first rotating rollers 415 are rotatably connected to the first mounting vertical plate 414 located on the front side, and the rear ends of the multiple groups of first rotating rollers 415 are rotatably connected to the first mounting vertical plate 414 located on the rear side. The second sliding rod 416 is rectangular and four-point type. There are four groups of limited sliding connections with the first top plate 413, and the upper end surfaces of the four groups of second sliding rods 416 are The first spring 417 is fixedly connected to the lower end surface of the first pressure plate 4113, and the lower end surfaces of the four groups of second slide bars 416 are fixedly connected to the upper end surface of the first connecting plate 418. The first spring 417 is arranged in a rectangular four-point style and has four groups respectively sleeved on the lower ends of the four groups of second slide bars 416. The upper ends of the four groups of first springs 417 are fixedly connected to the lower end surface of the first top plate 413, and the lower ends of the four groups of first springs 417 are fixedly connected to the upper end surface of the first connecting plate 418. The limiting plates 419 are arranged in two groups in front and back and are fixedly mounted on the first connecting plate 41 8, the right ends of the two sets of limit plates 419 are provided with a socket 4110, the socket 4110 is connected to the second support vehicle 42, the mounting bracket 4111 is fixedly mounted on the left side of the first connecting plate 418, the second roller 4112 is rotatably mounted on the inner wall of the mounting bracket 4111, the left and right inner walls of the mounting bracket 4111 are respectively fitted and slidably connected with the left and right side walls of the guide plate 14, the second roller 4112 rolls on the upper end surface of the guide plate 14, and the limit groove 15 cooperates with the second roller 4112 to be engaged and limited.

[0045] The second supporting vehicle 42 includes a second frame 421, a second universal roller 422, a second top plate 423, a second mounting vertical plate 424, a second rotating roller 425, a third sliding bar 426, a second spring 427, a second connecting plate 428, a second mounting plate 429, an inserting rod 4210, a third mounting plate 4211, a second clamping block 4212, a fourth mounting plate 4213, a third clamping block 4214, a third connecting plate 4215, a T-shaped baffle 4216, a fourth sliding bar 4217, a fifth mounting plate 4218, a third spring 4219 and a second pressing plate 4220. The second universal roller 422 is arranged in a rectangular four-point type with four groups all fixedly mounted on the lower end surface of the second frame 421. The lower end surface of the second top plate 423 is aligned with the lower end surface of the second frame 42 1 is fixedly connected, the second mounting vertical plate 424 is symmetrically provided with two groups front and back, both of which are fixedly installed on the upper end surface of the second top plate 423, and multiple groups of second rotating rollers 425 are arranged left and right. The front ends of the multiple groups of second rotating rollers 425 are rotatably connected to the second mounting vertical plate 424 located on the front side, and the rear ends of the multiple groups of second rotating rollers 425 are rotatably connected to the second mounting vertical plate 424 located on the rear side. The third sliding rod 426 is rectangularly provided with four groups of limited sliding connections with the second top plate 423, the upper end surfaces of the four groups of third sliding rods 426 are fixedly connected to the lower end surface of the second pressing plate 4220, and the lower end surfaces of the four groups of third sliding rods 426 are fixedly connected to the upper end surface of the second connecting plate 428, and the second spring 427 is rectangularly provided with four groups of The second fixing plate 4213 is fixedly mounted on the right side of the first connecting plate 418, and the second fixing plate 4214 is fixedly mounted on the right side of the first connecting plate 418. 15, the third clamping block 4214 is fixedly mounted on the upper left end surface of the fourth mounting plate 4213, the inclined surface on the second clamping block 4212 cooperates with the inclined surface on the third clamping block 4214 to fit and slide in connection, the lower end surface of the third mounting plate 4211 fits and slides in connection with the upper end surface of the fourth mounting plate 4213, two groups of fifth mounting plates 4218 are arranged front to back and are fixedly mounted on the lower end surface of the second top plate 423, two groups of fourth sliding rods 4217 are arranged front to back and are respectively connected to the two groups of fifth mounting plates 4218 in a limited sliding manner, the right end surface of the fourth sliding rod 4217 is fixedly connected to the left end surface of the third connecting plate 4215, and two groups of third springs 4219 are arranged front to back and are respectively sleeved on the right ends of the two groups of fourth sliding rods 4217.The left ends of the two sets of third springs 4219 are fixedly connected to the right end surfaces of the two sets of fifth mounting plates 4218, respectively. The right ends of the two sets of third springs 4219 are fixedly connected to the left end surfaces of the two sets of third connecting plates 4215, respectively. The right end surface of the T-shaped baffle 4216 is fixedly connected to the upper left end surface of the third connecting plate 4215.

[0046] When the present invention is used, the first mounting frame 212 is driven by the hydraulic cylinder 211, and the first mounting frame 212 slides on the first linear guide rail 214. At the same time, the first mounting frame 212 drives the first roller 213 to move forward to cooperate with the driving component 22 and the auxiliary bending component 23 to bend the H-shaped steel. The reduction motor 223 drives the driving roller 222 to rotate, thereby driving the H-shaped steel to move. At the same time, the two groups of driving rollers 222 cooperate with the pressure component 21 to bend the H-shaped steel. The two groups of auxiliary rollers 233 are used to reduce the pressure and the initial pressure on the H-shaped steel. and the distance between the end section, which shortens the straight head of the H-shaped steel, improves the utilization rate of raw materials, and thus improves economic benefits. The first threaded rod 234 is threadedly connected to the first mounting plate 16, and the first threaded rod 234 drives the third mounting bracket 232. The third mounting bracket 232 slides with the second linear guide rail 231, and the third mounting bracket 232 drives the auxiliary roller 233 to adjust the distance to adapt to different bending angles. The first threaded rod 234 is tightened on the first threaded rod 234 through the first nut 235 and is tightened with the first mounting plate 16.

[0047] The movable part 315 is driven by the second threaded rod 314, and the movable part 315 slides on the first slide rod 313 and is guided by the first slide rod 313. The movable part 315 drives the auxiliary roller 32 at the upper end to adjust, thereby achieving the limitation and guidance of H-shaped steels of different sizes. Multiple sets of assembly rings 324 are mounted on the mounting rod 321, so that the assembly rings 324 can be replaced individually when worn, without replacing the entire equipment or large-scale maintenance, which greatly reduces the cost and time cost of equipment maintenance. The two ends of the mounting rod 321 rotate in the grooves on the movable parts 315 at both ends, and can rotate synchronously when the H-shaped steel moves, reducing the wear of the assembly rings 324 and the H-shaped steel.

[0048] The first support vehicle 41 can be flexibly moved by the first universal roller 412. By pushing the first support vehicle 41 into cooperation with the guide plate 14 and the limit groove 15, the second roller 4112 rolls on the upper end of the guide plate 14, and the left and right inner side walls of the mounting bracket 4111 respectively slide in contact with the left and right side walls of the guide plate 14. The mounting bracket 4111 drives the first connecting plate 418, the first connecting plate 418 drives the second slide bar 416, and the second slide bar 416 drives the first pressing plate 4113 to rise, forming a non-pressed state. When the second roller 4112 is rotated, the first connecting plate 418 is rotated, and the second slide bar 416 is rotated. 4112 rolls into the limiting groove 15 and stops. At this time, the H-shaped steel can move freely through the first roller 415. The first support car 41 as a whole will not move laterally due to the fit between the inner wall of the mounting bracket 4111 and the outer wall of the guide plate 14. After the H-shaped steel is bent, the first support car 41 is pulled out. Under the action of the first spring 417, the first pressure plate 4113 presses down the tail section of the H-shaped steel to limit it. At the same time, when the first connecting plate 418 rises, it drives the limiting plate 419 to rise and cooperate with the second support car 42 to limit the second support car 42.

[0049] The second universal roller 422 enables the second support trolley 42 to move flexibly, and the second pressure plate 4220 in the second support trolley 42 is pulled up to a non-pressed state. When the limit plate 419 rises and the insertion rod 4210 is inserted into the socket 4110, the second support trolley 42 is locked. At the same time, the inclined surface on the second clamping block 4212 cooperates with the inclined surface on the third clamping block 4214 to fit the sliding connection so that the fourth mounting plate 4213 is moved away. When the third mounting plate 4211 moves to the upper end of the fourth mounting plate 4213, the fourth mounting plate 4213 is reset under the action of the third spring 4219, and moves to the T-shaped baffle 4216 at the initial section of the H-shaped steel through the second rotating roller 425, squeezing the T-shaped baffle 4216 so that the T-shaped baffle 4216 is brought The third connecting plate 4215 is moved, and the third connecting plate 4215 drives the fourth sliding bar 4217 to slide on the fifth mounting plate 4218. At the same time, the third connecting plate 4215 drives the fourth mounting plate 4213 to move away, thereby releasing the limit on the third mounting plate 4211. Under the action of the second spring 427, the second connecting plate 428 descends, and the second connecting plate 428 drives the third sliding bar 426. The third sliding bar 426 drives the second pressure plate 4220 to descend to press down and limit the initial section of the H-shaped steel. At the same time, the second connecting plate 428 descends and drives the second mounting plate 429. The second mounting plate 429 drives the insertion rod 4210 to move out of the socket 4110, thereby automatically pressing down the initial section of the H-shaped steel and automatically unlocking it from the first support vehicle 41.

[0050] The above are only preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. The above are only embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention description and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A bending device for processing steel structures, comprising a mounting assembly (1), characterized in that: The mounting assembly (1) is provided with a bending assembly (2) for bending the H-shaped steel, and the mounting assembly (1) is provided with an auxiliary frame assembly (3) for guiding and limiting the H-shaped steel. The auxiliary frame assembly (3) has four groups, and the two groups on the left are symmetrical with the two groups on the right. The mounting assembly (1) is connected with an inlet and outlet support assembly (4) for supporting the loading and unloading of the H-shaped steel, and the front end of the bent H-shaped steel is automatically supported by the inlet and outlet support assembly (4); The inlet and outlet support assembly (4) comprises a first support trolley (41) and a second support trolley (42). The first support trolley (41) is connected to the installation assembly (1) and the second support trolley (42). The bent H-shaped steel can be automatically pressed and supported by the second support trolley (42).

2. The bending device for steel structure processing according to claim 1, characterized in that: The mounting assembly (1) comprises a mounting base (11), an upper mounting frame (12), a lower mounting frame (13), a guide plate (14), a limiting groove (15) and a first mounting plate (16), wherein the upper mounting frame (12) is fixedly mounted on the front end of the upper end surface of the mounting base (11), and the upper end surface of the upper mounting frame (12) is fixedly mounted with a console (5), and the lower mounting frame (13) is symmetrically provided with two groups of guide plates (14) respectively fixedly mounted on the inner top surface of the mounting base (11). The outermost end of the inner bottom surface of the mounting frame (13) and the two groups of guide plates (14) are centrally symmetrical, and the upper ends of the two groups of guide plates (14) are respectively provided with limiting grooves (15), and the guide plates (14) and the limiting grooves (15) are connected to the first supporting vehicle (41), and the first mounting plate (16) is fixedly mounted on the rear end of the upper end surface of the mounting base (11), and the first mounting plate (16) is connected to the bending assembly (2) and the auxiliary frame assembly (3), and the mounting base (11) is connected to the bending assembly (2) and the auxiliary frame assembly (3).

3. The bending device for steel structure processing according to claim 2, characterized in that: The bending assembly (2) includes a pressure assembly (21), a driving assembly (22) and an auxiliary bending assembly (23), wherein the pressure assembly (21) and the driving assembly (22) are connected to the mounting base (11), and two groups of the driving assembly (22) and the auxiliary bending assembly (23) are respectively arranged symmetrically on the left and right, and the auxiliary bending assembly (23) is connected to the mounting base (11) and the first mounting plate (16); The pressure component (21) includes a hydraulic cylinder (211), a first mounting frame (212), a first roller (213) and a first linear guide rail (214), wherein the hydraulic cylinder (211) is fixedly mounted on the upper end surface of the mounting base (11), the hydraulic cylinder (211) is fixedly mounted on the upper end surface of the mounting base (11), the output end of the hydraulic cylinder (211) is hinged to the front end of the first mounting frame (212), the first roller (213) is rotatably mounted on the inner end of the first mounting frame (212), two groups of the first linear guide rails (214) are arranged on the left and right and are both fixedly mounted on the upper end surface of the mounting base (11), and the lower end surface of the first mounting frame (212) is fixedly connected to the sliders on the two groups of the first linear guide rails (214).

4. The bending device for steel structure processing according to claim 3, characterized in that: The driving assembly (22) comprises a second mounting frame (221), a driving roller (222) and a reduction motor (223); the second mounting frame (221) is fixedly mounted on the upper end surface of the mounting base (11); the driving roller (222) is rotatably mounted on the inner end of the second mounting frame (221); the reduction motor (223) is fixedly mounted on the upper end surface of the second mounting frame (221); and the output end of the reduction motor (223) is fixedly connected to the upper end of the driving roller (222).

5. The bending device for steel structure processing according to claim 4, characterized in that: The auxiliary bending assembly (23) includes a second linear guide rail (231), a third mounting frame (232), an auxiliary roller (233), a first threaded rod (234) and a first nut (235), wherein the second linear guide rail (231) is fixedly mounted on the upper end surface of the mounting base (11), the lower end surface of the third mounting frame (232) is fixedly connected to the slider on the second linear guide rail (231), the auxiliary roller (233) is rotatably mounted on the inner end of the third mounting frame (232), the front end of the first threaded rod (234) is rotatably connected to the rear end surface of the third mounting frame (232), the first threaded rod (234) is threadedly connected to the first mounting plate (16), the rear end of the first threaded rod (234) is provided with a pin hole, and the first nut (235) is tightened on the first threaded rod (234) and cooperates with the first mounting plate (16) to fasten the first threaded rod (234).

6. The bending device for steel structure processing according to claim 5, characterized in that: The auxiliary frame assembly (3) comprises an adjustment assembly (31) and auxiliary rollers (32), wherein the adjustment assembly (31) is symmetrically arranged in two groups in the front and rear, and the auxiliary rollers (32) are arranged in two groups in the upper and lower directions, the adjustment assembly (31) is connected to the mounting base (11), and the auxiliary rollers (32) are connected to the adjustment assembly (31).

7. The bending device for steel structure processing according to claim 6, characterized in that: The adjustment assembly (31) includes a C-shaped plate (311), an L-shaped plate (312), a first slide rod (313), a second threaded rod (314) and a movable member (315), wherein the L-shaped plate (312) is fixedly mounted on the upper end surface of the mounting base (11), the C-shaped plate (311) is fixedly mounted on the upper end surface of the L-shaped plate (312), the first slide rod (313) is fixedly mounted on the upper and lower inner side walls of the C-shaped plate (311), the lower end of the second threaded rod (314) is rotatably connected to the outer upper end surface of the movable member (315), the movable member (315) is slidably connected to the first slide rod (313), the second threaded rod (314) is threadedly connected to the upper end of the C-shaped plate (311), and a pin hole is provided at the upper end of the second threaded rod (314).

8. The bending device for steel structure processing according to claim 7, characterized in that: The auxiliary roller (32) includes a mounting rod (321), a first clamping block (322), a limiting ring (323), an assembly ring (324) and a second nut (325). The first clamping block (322) is symmetrically arranged in two groups in front and back. The front and rear groups of the first clamping block (322) located in the upper auxiliary roller (32) are detachably connected to the inner end surfaces of the front and rear groups of movable parts (315), respectively. The front and rear groups of the first clamping block (322) located in the lower auxiliary roller (32) are detachably connected to the front and rear groups of L-shaped plates (312), respectively. The inner end of the first clamping block (322) is a groove that is plugged into and rotatably connected to the two ends of the mounting rod (321). The limiting ring piece (323) is fixedly mounted on the rear end of the outer side wall of the mounting rod (321); a plurality of assembly rings (324) are arranged in a front-to-back arrangement and are all sleeved on the mounting rod (321); the rear side wall of the assembly ring (324) at the rear end is in contact with the front side wall of the limiting ring piece (323); the front end face of the assembly ring (324) at the front end is in contact with the rear side wall of the second nut (325); a thread is provided at the front of the mounting rod (321); the second nut (325) is threadedly connected to the thread at the front end of the mounting rod (321); and the plurality of assembly rings (324) are fixed by tightening the second nut (325) on the thread.

9. The bending device for steel structure processing according to claim 1, characterized in that: The first supporting vehicle (41) comprises a first vehicle frame (411), a first universal roller (412), a first top plate (413), a first mounting vertical plate (414), a first rotating roller (415), a second sliding rod (416), a first spring (417), a first connecting plate (418), a limiting plate (419), a socket (4110), a mounting bracket (4111), a second roller (4112) and a first pressing plate (4113). The first universal roller (412) is rectangular and has four groups of four points fixedly mounted on the lower end surface of the first vehicle frame (411). The lower end surface of the first top plate (413) is connected to the first connecting plate (418). The upper end surface of the first frame (411) is fixedly connected, the first mounting vertical plate (414) is symmetrically arranged with two groups of first rotating rollers (415) both fixedly installed on the upper end surface of the first top plate (413), multiple groups of first rotating rollers (415) are arranged left and right, the front ends of the multiple groups of first rotating rollers (415) are rotatably connected to the first mounting vertical plate (414) located at the front side, and the rear ends of the multiple groups of first rotating rollers (415) are rotatably connected to the first mounting vertical plate (414) located at the rear side, the second sliding rod (416) is rectangular and has four groups of four points, all of which are limitedly slidably connected to the first top plate (413), and the four groups of the second sliding rods (416) are arranged left and right. The upper end surfaces are all fixedly connected to the lower end surface of the first pressure plate (4113), the lower end surfaces of the four groups of the second slide bars (416) are all fixedly connected to the upper end surface of the first connecting plate (418), the first spring (417) is arranged in a rectangular four-point manner and has four groups respectively sleeved on the lower ends of the four groups of the second slide bars (416), the upper ends of the four groups of the first springs (417) are all fixedly connected to the lower end surface of the first top plate (413), the lower ends of the four groups of the first springs (417) are all fixedly connected to the upper end surface of the first connecting plate (418), and the limiting plates (419) are arranged in two groups in front and back and are all fixedly mounted on the first connecting plate (418). On the right side, the right ends of the two groups of limit plates (419) are provided with sockets (4110), and the sockets (4110) are connected to the second support vehicle (42). The mounting bracket (4111) is fixedly mounted on the left side of the first connecting plate (418), and the second roller (4112) is rotatably mounted on the inner wall of the mounting bracket (4111). The left and right inner walls of the mounting bracket (4111) are respectively fitted and slidably connected with the left and right side walls of the guide plate (14). The second roller (4112) rolls on the upper end surface of the guide plate (14), and the limit groove (15) cooperates with the second roller (4112) to engage and limit.

10. The bending device for steel structure processing according to claim 9, characterized in that: The second supporting vehicle (42) comprises a second vehicle frame (421), a second universal roller (422), a second top plate (423), a second mounting vertical plate (424), a second rotating roller (425), a third sliding bar (426), a second spring (427), a second connecting plate (428), a second mounting plate (429), an inserting rod (4210), a third mounting plate (4211), a second clamping block (4212), a fourth mounting plate (4213), a third clamping block (4214), a third connecting plate (4215), a T-shaped baffle (4216), a fourth sliding bar (4217), a fifth mounting plate (4218), a third spring (4219) and a second pressing plate (4220). The second universal roller (422) is rectangular. The four-point type is provided with four groups all fixedly mounted on the lower end surface of the second vehicle frame (421), the lower end surface of the second top plate (423) is fixedly connected to the upper end surface of the second vehicle frame (421), the second mounting vertical plate (424) is symmetrically provided with two groups all fixedly mounted on the upper end surface of the second top plate (423), multiple groups of second rotating rollers (425) are arranged left and right, the front ends of the multiple groups of second rotating rollers (425) are all rotatably connected to the second mounting vertical plate (424) located at the front side, and the rear ends of the multiple groups of second rotating rollers (425) are all rotatably connected to the second mounting vertical plate (424) located at the rear side, the third slide bar (426) is rectangular and the four-point type is provided with four groups all limitedly slidably connected to the second top plate (423), the four groups of the third slide bars (426) are arranged left and right, and the front ends of the multiple groups of second rotating rollers (425) are all rotatably connected to the second mounting vertical plate (424) located at the front side, and the rear ends of the multiple groups of second rotating rollers (425) are all rotatably connected to the second mounting vertical plate (424) located at the rear side. 26) are fixedly connected to the lower end of the second pressure plate (4220), the lower end of the four groups of third slide bars (426) are fixedly connected to the upper end of the second connecting plate (428), the second spring (427) is rectangular and four-point type and is respectively sleeved on the lower end of the four groups of third slide bars (426), the upper ends of the four groups of second springs (427) are fixedly connected to the lower end of the second top plate (423), the lower ends of the four groups of second springs (427) are fixedly connected to the upper end of the second connecting plate (428), the second mounting plate (429) is arranged in two groups in front and back and is fixedly mounted on the left side of the second connecting plate (428), and the upper left end of the two groups of second mounting plates (429) is fixedly mounted with a group of plugs. Rod (4210), the plug rod (4210) is used in conjunction with the socket (4110), the third mounting plate (4211) is fixedly mounted on the right side of the first connecting plate (418), the second clamping block (4212) is fixedly mounted on the right upper end surface of the third mounting plate (4211), the fourth mounting plate (4213) is fixedly mounted on the left end surface of the third connecting plate (4215), the third clamping block (4214) is fixedly mounted on the left upper end surface of the fourth mounting plate (4213), the inclined surface on the second clamping block (4212) is fitted and slidably connected with the inclined surface on the third clamping block (4214), the lower end surface of the third mounting plate (4211) is fitted and slidably connected with the upper end surface of the fourth mounting plate (4213),The fifth mounting plate (4218) is provided with two groups arranged in a front-to-back arrangement, both of which are fixedly mounted on the lower end surface of the second top plate (423). The fourth sliding rod (4217) is provided with two groups arranged in a front-to-back arrangement, respectively connected to the two groups of fifth mounting plates (4218) in a limited sliding manner. The right end surface of the fourth sliding rod (4217) is fixedly connected to the left end surface of the third connecting plate (4215). The third spring (4219) is provided with two groups arranged in a front-to-back arrangement, respectively sleeved on the right ends of the two groups of fourth sliding rods (4217). The left ends of the two groups of third springs (4219) are respectively fixedly connected to the right end surfaces of the two groups of fifth mounting plates (4218). The right ends of the two groups of third springs (4219) are respectively fixedly connected to the left end surfaces of the two groups of third connecting plates (4215). The right end surface of the T-shaped baffle (4216) is fixedly connected to the upper left end surface of the third connecting plate (4215).

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