Bending device for steel processing

Abstract

The present invention provides a bending device for steel processing, which belongs to the technical field of steel bending. The bending device for steel processing includes a processing table, a mounting frame and a bending mechanism. The mounting frame is fixedly mounted on the surface of the processing table, and the bending mechanism is mounted on the surface of the processing table. The bending mechanism includes a limiting roller, an abutting roller and a first gear. The limiting roller is rotatably mounted on the surface of the processing table, and the limiting roller is elliptical. The present invention sets a bending mechanism, drives the first rotating wheel and the second rotating wheel to rotate synchronously through a motor-driven rotating shaft, drives the first plug rod to move the first tooth plate through a driving groove, drives the limiting roller to rotate ninety degrees, and makes the long axis end of the limiting roller contact with the surface of the steel, thereby achieving pre-bending of the steel, thereby improving the bending effect and preventing the steel from rebounding; at the same time, when the second rotating wheel rotates, the second tooth plate can be driven to move through the eccentric shaft, thereby driving the support to drive the bending roller to rotate ninety degrees around the abutting roller, thereby achieving bending of the steel, which is convenient to use.

Description

Technical Field

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

[0002] During steel processing, in order to change the shape of the steel and enhance its performance, the steel needs to be bent so that the shape of the steel can meet the requirements of the structure or design. For example, many applications such as buildings, bridges, and furniture require steel to be bent in order to connect with other components or adapt to specific space requirements. After bending, the steel can become the required angle, curve or other geometric shape, and the bent steel has better bending resistance. Through bending, the cross-sectional shape of the steel changes, which may enhance its bearing capacity, especially under stress. In addition, through bending, large-sized steel can be processed into smaller, easier-to-transport shapes, and then spliced ​​and combined at the construction site.

[0003] However, steel will rebound to a certain extent after bending, especially in high-strength steel, where the rebound phenomenon is more obvious. The rebound phenomenon usually occurs on the outside of the bending area. Because during bending, the outer material undergoes a large tensile deformation, while the inner material undergoes a compressive deformation. The outer side after bending will tend to rebound, resulting in the final bending angle being smaller than expected. Summary of the Invention

[0004] In order to make up for the above deficiencies, the present invention provides a bending device for steel processing that overcomes the above technical problems or at least partially solves the above problems.

[0005] The present invention is achieved in that:

[0006] The present invention provides a bending device for steel processing, comprising a processing table, a mounting frame and a bending mechanism, wherein the mounting frame is fixedly mounted on the surface of the processing table, the bending mechanism is mounted on the surface of the processing table and is used to bend the steel, and the bending mechanism comprises:

[0007] A limiting roller, which is rotatably mounted on the surface of the processing table and is elliptical in shape, and is used to limit the position of the steel;

[0008] An abutting roller, the abutting roller is mounted on the surface of the processing table, a support is rotatably mounted on the bottom of the abutting roller, and a bending roller is mounted on the surface of the support for bending the steel;

[0009] The first gear is fixedly mounted on the bottom of the limiting roller, and a first tooth plate is slidably mounted on the surface of the processing table, and the first tooth plate is meshed with the first gear.

[0010] In a preferred solution, a second gear is fixedly mounted on the bottom of the support, a second tooth plate is slidably mounted on the surface of the processing table, and the second tooth plate is meshed with the second gear.

[0011] In a preferred solution, a motor is fixedly mounted on the side wall of the mounting frame, a rotating shaft is fixedly mounted on the output end of the motor, a first rotating wheel and a second rotating wheel are fixedly mounted on the surface of the rotating shaft, a driving groove is provided on the surface of the first rotating wheel, a swing arm is fixedly mounted on one end of the first gear plate, a first insertion rod is fixedly mounted on the side wall of the swing arm, and one end of the first insertion rod is inserted into the inner cavity of the driving groove.

[0012] In a preferred solution, a driving frame is fixedly mounted on one end of the second tooth plate, a first slider is fixedly mounted on the side wall of the driving frame, a slide rail is fixedly mounted on the surface of the processing table, the first slider is slidably connected to the slide rail, an eccentric shaft is fixedly mounted on the side wall of the second rotating wheel, and the eccentric shaft is inserted into the inner cavity of the driving frame.

[0013] In a preferred embodiment, a compensation mechanism is installed on the surface of the processing table for performing secondary bending on the steel. The compensation mechanism includes a second slider, a driving rod and an extrusion roller. The second slider is slidably installed in the inner cavity of the processing table. The driving rod is installed in the inner cavity of the second slider. The extrusion roller is fixedly installed on the surface of the driving rod for extrusion bending of the steel.

[0014] In a preferred solution, a driving plate is fixedly mounted on the bottom of the second tooth plate, an oblique groove is provided on the surface of the driving plate for driving the second slider to move, and the driving rod passes through the inner cavity of the oblique groove.

[0015] In a preferred solution, a plurality of first spray holes are provided on the side wall of the extrusion roller for spraying water on the surface of the steel to dissipate heat. The driving rod is hollow, and the hollow portion of the driving rod is communicated with the first spray holes. An extrusion plate is fixedly mounted on the bottom of the second slider, and an elastic airbag and a water tank are fixedly mounted on the bottom of the processing table. First one-way valves are symmetrically mounted on the side wall of the elastic airbag, and a water pipe is connected between one of the first one-way valves and the water tank for water inlet, and a water pipe is connected between the other first one-way valve and the hollow portion of the driving rod.

[0016] In a preferred embodiment, a lubrication mechanism is installed on the surface of the processing table for lubricating the bent portion of the steel. The lubrication mechanism includes a second spray hole and a first through hole. The side walls of the abutment roller and the bending roller are provided with a plurality of second spray holes for spraying lubricating oil onto the surface of the steel. The abutment roller and the bending roller are both hollow. The second spray hole is communicated with the hollow portion. The bottom of the abutment roller is provided with a first through hole, and the first through hole is communicated with the hollow portion of the abutment roller.

[0017] In a preferred solution, a second through hole is provided at the bottom of the bending roller, the second through hole is communicated with the hollow portion of the bending roller, and a channel is provided in the inner cavity of the support.

[0018] In a preferred embodiment, an oil filling cylinder is fixedly installed at the bottom of the processing table, a piston is slidably installed in the inner cavity of the oil filling cylinder, a return spring is fixedly installed in the inner cavity of the oil filling cylinder, the other end of the return spring is fixedly connected to the piston, and is used to drive the piston to move up and reset, a connecting rod is fixedly installed on the surface of the piston, a driving block is fixedly installed at one end of the connecting rod, a second plug rod is fixedly installed on the side wall of the driving block, one end of the second plug rod is inserted into the inner cavity of the driving groove, an oil tank is fixedly installed at the bottom of the processing table for storing lubricating oil, a second one-way valve is symmetrically installed on the side wall of the oil filling cylinder, one of the second one-way valves is connected to the oil tank by a pipeline for oil supply, and the other second one-way valve is connected to the hollow part of the abutting roller by a pipeline.

[0019] The present invention provides a bending device for steel processing, which has the following beneficial effects:

[0020] 1. By setting up a bending mechanism, the motor can drive the rotating shaft to drive the first rotating wheel and the second rotating wheel to rotate synchronously, and the driving slot drives the first plug rod to drive the first tooth plate to move, thereby driving the limiting roller to rotate ninety degrees, so that the long axis end of the limiting roller contacts the surface of the steel, realizing pre-bending of the steel, thereby improving the bending effect and preventing the steel from rebounding; at the same time, when the second rotating wheel rotates, the eccentric shaft can drive the second tooth plate to move, thereby driving the support to drive the bending roller to rotate ninety degrees around the abutting roller, realizing bending of the steel, which is convenient to use.

[0021] 2. By setting up a compensation mechanism, when the eccentric shaft drives the second tooth plate to move forward for bending, the driving rod can be driven by the inclined groove to drive the extrusion roller to move away from the abutment roller. After the initial bending is completed, the second tooth plate moves in the opposite direction, and the driving rod is driven by the inclined groove to drive the extrusion roller to move toward the abutment roller, and the steel is squeezed to achieve secondary bending of the steel to prevent the steel from rebounding; and when the driving rod is driven by the inclined groove to drive the extrusion roller to move toward the abutment roller, the elastic airbag can be squeezed through the extrusion plate, and the water in the elastic airbag is injected into the hollow part of the driving rod and sprayed toward the bending part of the steel from the first spray hole to cool the steel, further eliminating the rebound phenomenon of the steel.

[0022] 3. By setting up a lubrication mechanism, when the motor drives the first wheel to rotate, the second rod can be driven through the driving groove to drive the connecting rod to move up and down reciprocatingly, driving the piston to move synchronously, so that the two second one-way valves are alternately connected, and the lubricating oil is injected into the hollow parts of the abutting roller and the bending roller synchronously, and sprayed onto the surface of the steel from the second spray hole to lubricate the bent part of the steel, reduce the friction between the steel and the bending roller, reduce the stress concentration during bending, and thus reduce the generation of cracks and alleviate the rebound phenomenon. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments. It should be understood that the following drawings only illustrate certain embodiments of the present invention and should not be considered as limiting the scope. A person of ordinary skill in the art can also derive other relevant drawings based on these drawings without inventive effort.

[0024] Figure 1 is a front perspective view provided by an embodiment of the present invention;

[0025] Figure 2 A side perspective view of an embodiment of the present invention is provided;

[0026] Figure 3 A top view of an embodiment of the present invention;

[0027] Figure 4 A front view of an embodiment of the present invention is provided;

[0028] Figure 5 A side view of an embodiment of the present invention is provided;

[0029] Figure 6 A three-dimensional diagram of a drive plate provided in an embodiment of the present invention;

[0030] Figure 7 A cross-sectional view of a processing table provided in accordance with an embodiment of the present invention;

[0031] Figure 8 A first exploded view provided for an embodiment of the present invention;

[0032] Figure 9 A second exploded view provided for an embodiment of the present invention;

[0033] Figure 10 A cross-sectional view of a bending roller provided in an embodiment of the present invention.

[0034] In the figure: 1. Processing table; 2. Mounting frame; 3. Bending mechanism; 301. Limiting roller; 302. Abutting roller; 303. Support; 304. Bending roller; 305. First gear; 306. First tooth plate; 307. Second gear; 308. Second tooth plate; 309. Motor; 310. Rotating shaft; 311. First rotating wheel; 312. Second rotating wheel; 313. Driving slot; 314. Swing arm; 315. First insertion rod; 316. Driving frame; 317. First slider; 318. Slide rail; 319. Eccentric shaft ; 4. Compensation mechanism; 401. Second slider; 402. Drive rod; 403. Squeeze roller; 404. Drive plate; 405. Inclined groove; 406. First spray hole; 407. Squeeze plate; 408. Elastic airbag; 409. Water tank; 5. Lubrication mechanism; 501. Second spray hole; 502. First through hole; 503. Second through hole; 504. Channel; 505. Oil filling cylinder; 506. Piston; 507. Return spring; 508. Connecting rod; 509. Drive block; 510. Second plug rod; 511. Oil tank. DETAILED DESCRIPTION

[0035] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts shall fall within the scope of protection of the present invention.

[0036] Reference Figures 1-10 As shown, the present invention provides a technical solution: a bending device for steel processing, comprising a processing table 1, a mounting frame 2 and a bending mechanism 3, the mounting frame 2 is fixedly mounted on the surface of the processing table 1, the bending mechanism 3 is mounted on the surface of the processing table 1, and is used to bend the steel, the bending mechanism 3 comprises a limiting roller 301, an abutting roller 302 and a first gear 305, the limiting roller 301 is rotatably mounted on the surface of the processing table 1, the limiting roller 301 is elliptical and is used to limit the steel, the abutting roller 302 is mounted on the surface of the processing table 1, a support 303 is rotatably mounted on the bottom of the abutting roller 302, a bending roller 304 is mounted on the surface of the support 303, and is used to bend the steel, the first gear 305 is fixedly mounted on the bottom of the limiting roller 301, and a first tooth plate 306 is slidably mounted on the surface of the processing table 1, the first tooth plate 306 is meshed with the first gear 305, and is used to drive the limiting roller 301 to rotate.

[0037] Reference Figures 1-10As shown, in a preferred embodiment, a second gear 307 is fixedly installed at the bottom of the support 303, a second tooth plate 308 is slidably installed on the surface of the processing table 1, and the second tooth plate 308 is engaged with the second gear 307 to drive the support 303 to rotate, and a motor 309 is fixedly installed on the side wall of the mounting frame 2, and a rotating shaft 310 is fixedly installed on the output end of the motor 309. A first rotating wheel 311 and a second rotating wheel 312 are fixedly installed on the surface of the rotating shaft 310. The rotating wheel 311 and the second rotating wheel 312 can be driven by the motor 309. The shaft 310 drives the first rotating wheel 311 and the second rotating wheel 312 to rotate synchronously. A driving groove 313 is provided on the surface of the first rotating wheel 311. A swing arm 314 is fixedly installed at one end of the first tooth plate 306. A first insertion rod 315 is fixedly installed on the side wall of the swing arm 314. One end of the first insertion rod 315 is inserted into the inner cavity of the driving groove 313. When the first rotating wheel 311 rotates, the driving groove 313 can drive the first insertion rod 315 to drive the first tooth plate 306 to move back and forth, thereby driving the limiting roller 301 to rotate.

[0038] Reference Figures 1-10 As shown, in a preferred embodiment, a driving frame 316 is fixedly installed at one end of the second tooth plate 308, a first slider 317 is fixedly installed on the side wall of the driving frame 316, a slide rail 318 is fixedly installed on the surface of the processing table 1, the first slider 317 is slidably connected to the slide rail 318, an eccentric shaft 319 is fixedly installed on the side wall of the second rotating wheel 312, the eccentric shaft 319 is inserted into the inner cavity of the driving frame 316, and the eccentric shaft 319 is installed in a non-center position of the second rotating wheel 312. When the second rotating wheel 312 rotates, the second tooth plate 308 can be driven to move back and forth through the eccentric shaft 319, thereby driving the support 303 to drive the bending roller 304 to rotate around the abutting roller 302.

[0039] In a preferred embodiment, when in use, the steel to be bent is placed between the abutting roller 302, the limiting roller 301 and the bending roller 304, and the motor 309 can drive the rotating shaft 310 to drive the first rotating wheel 311 and the second rotating wheel 312 to rotate synchronously, and the first inserting rod 315 is driven by the driving slot 313 to drive the first tooth plate 306 to move, thereby driving the limiting roller 301 to rotate ninety degrees, so that the long axis end of the limiting roller 301 contacts the surface of the steel, realizing pre-bending of the steel, thereby improving the bending effect and preventing the steel from rebounding; at the same time, when the second rotating wheel 312 rotates, the second tooth plate 308 can be driven to move through the eccentric shaft 319, thereby driving the support 303 to drive the bending roller 304 to rotate ninety degrees around the abutting roller 302, realizing bending of the steel, which is convenient for use.

[0040] Reference Figure 1-Figure 7As shown, in a preferred embodiment, a compensation mechanism 4 is installed on the surface of the processing table 1 for performing secondary bending on the steel to ensure the bending quality. The compensation mechanism 4 includes a second slider 401, a driving rod 402 and an extrusion roller 403. The second slider 401 is slidably installed in the inner cavity of the processing table 1. The driving rod 402 is installed in the inner cavity of the second slider 401. The extrusion roller 403 is fixedly installed on the surface of the driving rod 402 for extruding and bending the steel to prevent the steel from rebounding. A driving plate 404 is fixedly installed at the bottom of the second tooth plate 308. The driving plate 404 An inclined groove 405 is provided on the surface for driving the second slider 401 to move. The driving rod 402 passes through the inner cavity of the inclined groove 405. When the eccentric shaft 319 drives the second tooth plate 308 to move forward for bending, the driving rod 402 can be driven by the inclined groove 405 to drive the squeezing roller 403 to move away from the abutting roller 302. After the initial bending is completed, the second tooth plate 308 moves in the opposite direction and drives the driving rod 402 through the inclined groove 405 to drive the squeezing roller 403 to move toward the abutting roller 302, and extrude the steel to achieve secondary bending of the steel and prevent the steel from rebounding.

[0041] Reference Figure 1-Figure 7 As shown, in a preferred embodiment, a plurality of first spray holes 406 are provided on the side wall of the squeezing roller 403 for spraying water on the surface of the steel to dissipate heat. The driving rod 402 is hollow, and the hollow portion of the driving rod 402 is connected to the first spray hole 406. An squeezing plate 407 is fixedly installed at the bottom of the second slider 401, and an elastic airbag 408 and a water tank 409 are fixedly installed at the bottom of the processing table 1. The water tank 409 is used to store cooling water. The side wall of the elastic airbag 408 is symmetrically installed with a first one-way valve, one of which is the first one-way valve. A water pipe is connected between a one-way valve and the water tank 409 for water intake. Another first one-way valve is connected to the hollow part of the driving rod 402 by a water pipe. When the inclined groove 405 drives the driving rod 402 to drive the squeezing roller 403 to move toward the abutting roller 302, the elastic airbag 408 can be squeezed through the squeezing plate 407, and the water in the elastic airbag 408 is injected into the hollow part of the driving rod 402 and sprayed toward the bending part of the steel through the first spray hole 406 to cool the steel and further eliminate the rebound phenomenon of the steel.

[0042] In a preferred embodiment, when the eccentric shaft 319 drives the second tooth plate 308 to move forward for bending, the driving rod 402 can be driven by the inclined groove 405 to drive the squeezing roller 403 to move away from the abutting roller 302. After the initial bending is completed, the second tooth plate 308 moves in the opposite direction and drives the driving rod 402 by the inclined groove 405 to drive the squeezing roller 403 to move toward the abutting roller 302, and squeeze the steel to achieve secondary bending of the steel to prevent the steel from rebounding; and when the inclined groove 405 drives the driving rod 402 to drive the squeezing roller 403 to move toward the abutting roller 302, the elastic airbag 408 can be squeezed through the squeezing plate 407, and the water in the elastic airbag 408 is injected into the hollow part of the driving rod 402, and sprayed toward the bent part of the steel through the first spray hole 406 to cool the steel, further eliminating the rebound phenomenon of the steel.

[0043] Reference Figures 1-10 As shown, in a preferred embodiment, a lubrication mechanism 5 is installed on the surface of the processing table 1 for lubricating the bent portion of the steel, reducing the friction between the steel and the bending roller 304, reducing the stress concentration during bending, thereby reducing the generation of cracks and alleviating the rebound phenomenon. The lubrication mechanism 5 includes a second spray hole 501 and a first through hole 502. The side walls of the abutting roller 302 and the bending roller 304 are both provided with a plurality of second spray holes 501 for spraying lubricating oil onto the surface of the steel. The roller 302 and the bending roller 304 are both hollow, the second spray hole 501 is connected to the hollow part, a first through hole 502 is provided at the bottom of the abutting roller 302, the first through hole 502 is connected to the hollow part of the abutting roller 302, a second through hole 503 is provided at the bottom of the bending roller 304, the second through hole 503 is connected to the hollow part of the bending roller 304, a channel 504 is provided in the inner cavity of the support 303, the first through hole 502 and the second through hole 503 are connected through the channel 504.

[0044] Reference Figures 1-10As shown, in a preferred embodiment, an oil injection cylinder 505 is fixedly installed at the bottom of the processing table 1, and a piston 506 is slidably installed in the inner cavity of the oil injection cylinder 505. A return spring 507 is fixedly installed in the inner cavity of the oil injection cylinder 505, and the other end of the return spring 507 is fixedly connected to the piston 506 for driving the piston 506 to move up and reset. A connecting rod 508 is fixedly installed on the surface of the piston 506, and a driving block 509 is fixedly installed at one end of the connecting rod 508. A second insertion rod 510 is fixedly installed on the side wall of the driving block 509. One end of the second insertion rod 510 is inserted into the inner cavity of the driving groove 313. When the motor 309 drives the first rotating wheel 311 to rotate, the second insertion rod 510 can be driven through the driving groove 313 to drive the connecting rod 508 to reciprocate up and down. Movement, an oil tank 511 is fixedly installed at the bottom of the processing table 1 for storing lubricating oil, and a second one-way valve is symmetrically installed on the side wall of the oil filling cylinder 505. A pipeline is connected between one of the second one-way valves and the oil tank 511 for oil intake, and a pipeline is connected to the hollow part of the abutting roller 302 by the other second one-way valve. When the connecting rod 508 moves back and forth up and down, it drives the piston 506 to move synchronously, so that the two second one-way valves are alternately connected, and the lubricating oil is synchronously injected into the hollow parts of the abutting roller 302 and the bending roller 304, and sprayed onto the surface of the steel from the second nozzle 501 to lubricate the bent part of the steel, reduce the friction between the steel and the bending roller 304, reduce the stress concentration during bending, and thereby reduce the generation of cracks and alleviate the rebound phenomenon.

[0045] In a preferred embodiment, when the motor 309 drives the first rotating wheel 311 to rotate, the driving slot 313 can drive the second insertion rod 510 to drive the connecting rod 508 to move up and down, drive the piston 506 to move synchronously, and make the two second one-way valves alternately conductive, and inject lubricating oil into the hollow parts of the abutting roller 302 and the bending roller 304 synchronously, and spray it to the surface of the steel through the second spray hole 501, so as to lubricate the bent part of the steel, reduce the friction between the steel and the bending roller 304, reduce the stress concentration during bending, and thereby reduce the generation of cracks and alleviate the rebound phenomenon.

[0046] Specifically, the working principle of this bending device for steel processing is as follows: when in use, the steel to be bent is placed between the abutting roller 302, the limiting roller 301 and the bending roller 304, and the motor 309 can drive the rotating shaft 310 to drive the first rotating wheel 311 and the second rotating wheel 312 to rotate synchronously, and the first inserting rod 315 is driven by the driving slot 313 to drive the first tooth plate 306 to move, thereby driving the limiting roller 301 to rotate ninety degrees, so that the long axis end of the limiting roller 301 contacts the surface of the steel, realizing pre-bending of the steel, thereby improving the bending effect and preventing the steel from rebounding; at the same time, when the second rotating wheel 312 rotates, the second tooth plate 308 can be driven to move through the eccentric shaft 319, thereby driving the support 303 to drive the bending roller 304 to rotate ninety degrees around the abutting roller 302, realizing bending of the steel, which is convenient to use.

[0047] When the motor 309 drives the first rotating wheel 311 to rotate, the driving slot 313 can drive the second insertion rod 510 to drive the connecting rod 508 to move up and down, drive the piston 506 to move synchronously, and make the two second one-way valves alternately conductive, and inject lubricating oil into the hollow parts of the abutting roller 302 and the bending roller 304 synchronously, and spray it to the surface of the steel through the second spray hole 501, so as to lubricate the bent part of the steel, reduce the friction between the steel and the bending roller 304, reduce the stress concentration during bending, and thereby reduce the generation of cracks and alleviate the rebound phenomenon.

[0048] When the eccentric shaft 319 drives the second tooth plate 308 to move forward for bending, the driving rod 402 can be driven by the inclined groove 405 to drive the squeezing roller 403 to move away from the abutting roller 302. After the initial bending is completed, the second tooth plate 308 moves in the opposite direction and drives the driving rod 402 through the inclined groove 405 to drive the squeezing roller 403 to move toward the abutting roller 302, and squeeze the steel to achieve secondary bending of the steel to prevent the steel from rebounding; and when the inclined groove 405 drives the driving rod 402 to drive the squeezing roller 403 to move toward the abutting roller 302, the elastic airbag 408 can be squeezed through the squeezing plate 407, and the water in the elastic airbag 408 is injected into the hollow part of the driving rod 402, and sprayed toward the bent part of the steel through the first spray hole 406 to cool the steel and further eliminate the rebound phenomenon of the steel.

[0049] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A bending device for steel processing, characterized in that: The invention comprises a processing table (1), a mounting frame (2) and a bending mechanism (3), wherein the mounting frame (2) is fixedly mounted on the surface of the processing table (1), and the bending mechanism (3) is mounted on the surface of the processing table (1) and is used to bend steel. The bending mechanism (3) comprises: A limiting roller (301), the limiting roller (301) is rotatably mounted on the surface of the processing table (1), the limiting roller (301) is elliptical and is used to limit the position of the steel; An abutting roller (302), the abutting roller (302) is mounted on the surface of the processing table (1), a support (303) is rotatably mounted on the bottom of the abutting roller (302), and a bending roller (304) is mounted on the surface of the support (303) for bending the steel; a first gear (305), the first gear (305) being fixedly mounted on the bottom of the limiting roller (301); a first tooth plate (306) being slidably mounted on the surface of the processing table (1); the first tooth plate (306) being meshed with the first gear (305); A second gear (307) is fixedly mounted on the bottom of the support (303), and a second tooth plate (308) is slidably mounted on the surface of the processing table (1), wherein the second tooth plate (308) is meshed with the second gear (307); The surface of the processing table (1) is provided with a compensation mechanism (4) for performing secondary bending on the steel material. The compensation mechanism (4) comprises a second slider (401), a driving rod (402) and an extrusion roller (403). The second slider (401) is slidably mounted in the inner cavity of the processing table (1). The inner cavity of the second slider (401) is provided with a driving rod (402). The surface of the driving rod (402) is provided with an extrusion roller (403) for performing extrusion bending on the steel material. A driving plate (404) is fixedly mounted on the bottom of the second tooth plate (308), and a slanted groove (405) is provided on the surface of the driving plate (404) for driving the second slider (401) to move, and the driving rod (402) passes through the inner cavity of the slanted groove (405); The side wall of the squeezing roller (403) is provided with a plurality of first spray holes (406) for spraying water on the surface of the steel to dissipate heat. The driving rod (402) is hollow, and the hollow portion of the driving rod (402) is in communication with the first spray holes (406). An squeezing plate (407) is fixedly mounted on the bottom of the second slider (401). An elastic airbag (408) and a water tank (409) are fixedly mounted on the bottom of the processing table (1). First one-way valves are symmetrically mounted on the side wall of the elastic airbag (408). A water pipe is connected between one of the first one-way valves and the water tank (409) for water inlet, and a water pipe is connected between the other first one-way valve and the hollow portion of the driving rod (402).

2. A bending device for steel processing according to claim 1, characterized in that: A motor (309) is fixedly mounted on the side wall of the mounting frame (2), a rotating shaft (310) is fixedly mounted on the output end of the motor (309), a first rotating wheel (311) and a second rotating wheel (312) are fixedly mounted on the surface of the rotating shaft (310), a driving groove (313) is provided on the surface of the first rotating wheel (311), a swing arm (314) is fixedly mounted on one end of the first tooth plate (306), a first insertion rod (315) is fixedly mounted on the side wall of the swing arm (314), and one end of the first insertion rod (315) is inserted into the inner cavity of the driving groove (313).

3. A bending device for steel processing according to claim 2, characterized in that: A driving frame (316) is fixedly mounted on one end of the second tooth plate (308), a first slider (317) is fixedly mounted on the side wall of the driving frame (316), a slide rail (318) is fixedly mounted on the surface of the processing table (1), the first slider (317) is slidably connected to the slide rail (318), an eccentric shaft (319) is fixedly mounted on the side wall of the second rotating wheel (312), and the eccentric shaft (319) is inserted into the inner cavity of the driving frame (316).

4. A bending device for steel processing according to claim 3, characterized in that: A lubricating mechanism (5) is installed on the surface of the processing table (1) for lubricating the bent portion of the steel material. The lubricating mechanism (5) includes a second spray hole (501) and a first through hole (502). The side walls of the abutting roller (302) and the bending roller (304) are both provided with a plurality of second spray holes (501) for spraying lubricating oil onto the surface of the steel material. The abutting roller (302) and the bending roller (304) are both hollow. The second spray holes (501) are in communication with the hollow portion. The bottom of the abutting roller (302) is provided with a first through hole (502), and the first through hole (502) is in communication with the hollow portion of the abutting roller (302).

5. The steel material processing bending device according to claim 4, characterized in that: A second through hole (503) is provided at the bottom of the bending roller (304), the second through hole (503) is in communication with the hollow portion of the bending roller (304), and a channel (504) is provided in the inner cavity of the support (303).

6. The bending device for steel processing according to claim 5, characterized in that: An oil injection cylinder (505) is fixedly installed at the bottom of the processing table (1), a piston (506) is slidably installed in the inner cavity of the oil injection cylinder (505), a return spring (507) is fixedly installed in the inner cavity of the oil injection cylinder (505), the other end of the return spring (507) is fixedly connected to the piston (506) and is used to drive the piston (506) to move upward and reset, a connecting rod (508) is fixedly installed on the surface of the piston (506), and a driving block (509) is fixedly installed at one end of the connecting rod (508) A second insertion rod (510) is fixedly mounted on the side wall of the driving block (509), one end of the second insertion rod (510) is inserted into the inner cavity of the driving groove (313), an oil tank (511) is fixedly mounted on the bottom of the processing table (1) for storing lubricating oil, and second one-way valves are symmetrically mounted on the side wall of the oil filling cylinder (505), one of the second one-way valves is connected to the oil tank (511) by a pipeline for oil supply, and the other second one-way valve is connected to the hollow part of the abutting roller (302) by a pipeline.

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