CN112355091A

CN112355091A - Bending device for steel structure machining

Info

Publication number: CN112355091A
Application number: CN202011258179.2A
Authority: CN
Inventors: 庞维鑫
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-11-11
Filing date: 2020-11-11
Publication date: 2021-02-12

Abstract

The invention discloses a bending device for processing a steel structure, which comprises an upper plate and a supporting plate, wherein an upright post is arranged between the upper plate and the supporting plate, the two ends of the upper plate are symmetrically provided with hydraulic telescopic mechanisms, the telescopic ends of the hydraulic telescopic mechanisms are downward along the vertical direction, the telescopic ends are provided with movable plates, the lower part of each movable plate is provided with an upper adjusting rod, the upper adjusting rod is symmetrically provided with two sections of external threads with opposite directions, and the two sections of external threads are respectively in threaded connection with an upper movable block, an upper mounting plate is arranged between the upper movable blocks, two ends of the upper mounting plate are respectively provided with an upper movable rod, the two ends of the supporting plate are symmetrically provided with lower adjusting rods, when in use, through the rotation of the telescopic transmission rod, can drive the rotation of the corresponding upper adjusting rod and the lower adjusting rod respectively, facilitate the staff to adjust the bending size of the U-shaped piece and the bending angle of the V-shaped piece, and improve the processing universality of the bending device for steel structure processing.

Description

Bending device for steel structure machining

Technical Field

The invention relates to the technical field of steel structure machining, in particular to a bending device for steel structure machining.

Background

The steel construction is the structure of constituteing by steel material, be one of main building structure type, the structure mainly comprises girder steel, steel column, members such as steel truss that shaped steel and steel sheet etc. were made, at the in-process of setting up the steel construction, need make certain shape with panel or shaped steel utilization processingequipment and satisfy the user demand, the comparatively common steel construction processing mode at present is with the device bending that buckles with the steel sheet, make V-arrangement spare or U-shaped spare, but the shape that general device bending of buckling is single, and the angle of bending can not be adjusted, be difficult to satisfy the production demand.

Disclosure of Invention

The invention aims to provide a bending device for processing a steel structure, which aims to solve the problems in the background technology.

In order to achieve the purpose, the invention provides the following technical scheme:

a bending device for steel structure processing comprises an upper plate and a supporting plate, wherein a stand column is arranged between the upper plate and the supporting plate, one end of the stand column is connected with the upper plate, the other end of the stand column is connected with the supporting plate, hydraulic telescopic mechanisms are symmetrically arranged at two ends of the upper plate, a movable plate is arranged at the telescopic end of each hydraulic telescopic mechanism downwards along the vertical direction, an upper adjusting rod is arranged below each movable plate, two sections of external threads with opposite directions are symmetrically arranged on each upper adjusting rod, an upper movable block is respectively in threaded connection with the two sections of external threads, the upper movable block is in sliding connection with the movable plate, an upper mounting plate is arranged between the upper movable blocks, two ends of the upper mounting plate are respectively provided with an upper movable rod which is in sliding connection with the upper mounting plate, lower adjusting rods are symmetrically arranged at two ends of the supporting plate, two sections of external threads with opposite directions are symmetrically arranged on the lower adjusting rods, the lower movable block is connected with the supporting plate in a sliding manner, the lower mounting plate is arranged between the lower movable blocks, the two ends of the lower mounting plate are respectively provided with a lower movable rod, the upper movable rod is connected with the lower mounting plate in a sliding manner, the two ends of the supporting plate are respectively provided with a U-shaped piece bending mechanism and a V-shaped piece bending mechanism, the U-shaped piece bending mechanism comprises a first upper pressing block and a first lower pressing block, the V-shaped piece bending mechanism comprises a second upper pressing block and a second lower pressing block, the first upper pressing block is symmetrically arranged at the two ends of the upper mounting plate and is connected with the upper mounting plate in a sliding manner, one end of the upper movable rod is connected with the upper movable block, the other end of the upper movable rod is connected with the first upper pressing block, the first lower pressing block is symmetrically arranged on the lower mounting plate corresponding to the first upper pressing block and is connected with the lower mounting plate in a sliding manner, the other end of the first upper pressing block is connected with the first lower pressing block, the two second upper pressing blocks are symmetrically arranged on the other upper mounting plate, one ends of the two second upper pressing blocks are rotatably connected, the other ends of the two second upper pressing blocks are rotatably connected with the sliding block arranged on the upper mounting plate, one end of the upper movable rod is connected with the upper movable block, the other end of the upper movable rod is connected with the sliding block, two second lower pressing blocks are symmetrically distributed on the lower mounting plate corresponding to the second upper pressing blocks, one end of each second lower pressing block is rotatably connected with the lower mounting plate, the other end of each second lower pressing block is rotatably connected with the horizontal block arranged on the lower mounting plate, one end of the lower movable rod is connected with the lower movable block, the other end of the lower movable rod is connected with the horizontal block, one side of each of the two upper adjusting rods is provided with a telescopic transmission rod, and the upper adjusting rods and one end of the corresponding lower adjusting rod are in transmission connection with gears at two ends of the telescopic transmission rods respectively.

As a further scheme of the invention: the utility model discloses a buffer structure, including the backup pad, buffer spring's one end is connected with the kicking block, and the other end is connected with the bottom of dashpot, the below of backup pad is equipped with the bottom plate, is equipped with buffer gear between bottom plate and the backup pad, and buffer gear is including setting up at backup pad below kicking block, kicking block and the dashpot sliding connection who sets up at the bottom plate, is equipped with interior buffer spring in the dashpot, and interior buffer spring's one end is connected with the kicking block, and the other end is connected with the bottom of.

As a still further scheme of the invention: the support plate is characterized in that a supporting rod is obliquely arranged below the support plate, one end of the supporting rod is connected with the support plate in a rotating mode, the other end of the supporting rod is connected with one side of a buffer block arranged on the bottom plate in a rotating mode, the buffer block is connected with the bottom plate in a sliding mode, a spring is arranged on the other side of the buffer block, one end of the spring is connected with the buffer block, and the other end of the spring is connected with a stop block arranged.

As a still further scheme of the invention: and a U-shaped adjusting crank is arranged below one telescopic transmission rod, a V-shaped adjusting crank is arranged below the other telescopic transmission rod, and one end of each of the U-shaped adjusting crank and the V-shaped adjusting crank is in transmission connection with a gear at the lower end of one telescopic transmission rod respectively.

As a still further scheme of the invention: a prepressing plate is arranged between the two first upper pressing blocks, a prepressing spring is arranged between the prepressing plate and the upper mounting plate, one end of the prepressing spring is connected with the upper mounting plate, and the other end of the prepressing spring is connected with the prepressing plate.

As a still further scheme of the invention: the utility model discloses a building mattress, including the spliced pole, the one end of montant is equipped with the spliced pole, and the one end of montant is connected with spliced pole sliding connection, and the one end of vertical spring is connected with the spliced pole, and the other end is equipped with the cushion, the montant overcoat has vertical spring, and the one end of vertical spring is connected with the spliced pole, other end and cushion, the bottom of cushion is equipped with the slipmat.

As a still further scheme of the invention: the non-slip mat is made of rubber.

Compared with the prior art, the invention has the beneficial effects that:

1. rotate the rotation that U-shaped adjustment crank or V-arrangement adjustment crank can drive the telescopic transfer line that corresponds through rotating, make U-shaped piece bending mechanism or V-arrangement piece bending mechanism can guarantee the uniformity when adjusting, can also make things convenient for the staff to adjust the size of buckling of U-shaped piece and the angle of buckling of V-arrangement piece simultaneously, improve the processing commonality of steel construction processing with the device of buckling.

2. The steel structure machining bending device can weaken the vibration of the steel structure machining bending device in the using process through the outer buffer spring and the inner buffer spring, and the service life of the device is prolonged.

3. The height of filling up the leg can be adjusted to the rotation regulating block, makes steel construction processing can place at unevenness subaerial stability with buckling the device, fills up the vertical spring on the leg and can further weaken steel construction processing with the vibrations that the device received in the use of buckling.

Drawings

Fig. 1 is a schematic structural view of a bending device for steel structure processing.

Fig. 2 is a schematic structural diagram of a U-shaped member bending mechanism in a bending device for steel structure processing.

Fig. 3 is a schematic structural diagram of a V-shaped member bending mechanism in the bending device for steel structure processing.

Fig. 4 is a schematic structural diagram of a telescopic transmission rod in a bending device for steel structure processing.

Fig. 5 is a schematic structural view of a buffer mechanism in the bending device for steel structure processing.

Fig. 6 is a schematic structural view of a pad leg in the bending device for processing the steel structure.

1-U-shaped piece bending mechanism, 2-V-shaped piece bending mechanism, 3-upper plate, 4-upright post, 5-hydraulic telescopic mechanism, 6-support plate, 7-buffer mechanism, 8-bottom plate, 9-pad leg, 10-upper movable block, 11-movable plate, 12-upper adjusting rod, 13-upper movable rod, 14-telescopic transmission rod, 15-upper mounting plate, 16-lower mounting plate, 17-upper movable rod, 18-lower movable block, 19-lower adjusting rod, 20-first upper pressing block, 21-prepressing spring, 22-prepressing plate, 23-first lower pressing block, 24-second upper pressing block, 25-sliding block, 26-horizontal block, 27-second lower pressing block, 28-U-shaped adjusting crank, 29-V-shaped adjusting crank, 30-strut, 31-buffer block, 32-spring, 33-block, 34-outer buffer spring, 35-buffer groove, 36-top block, 37-inner buffer spring, 38-threaded column, 39-adjusting block, 40-connecting column, 41-vertical spring, 42-vertical rod and 43-cushion block.

Detailed Description

The technical solution of the present patent will be described in further detail with reference to the following embodiments.

The present invention will be described in detail with reference to the following embodiments, wherein like or similar elements are designated by like reference numerals throughout the several views, and wherein the shape, thickness or height of the various elements may be expanded or reduced in practice. The examples are given solely for the purpose of illustration and are not intended to limit the scope of the invention. Any obvious modifications or variations can be made to the present invention without departing from the spirit or scope of the present invention.

Example 1

Referring to fig. 1-6, a bending apparatus for steel structure processing comprises an upper plate 3 and a supporting plate 6, wherein a column 4 is disposed between the upper plate 3 and the supporting plate 6, one end of the column 4 is connected to the upper plate 3, the other end is connected to the supporting plate 6, hydraulic telescoping mechanisms 5 are symmetrically disposed at two ends of the upper plate 3, a movable plate 11 is disposed at the telescopic end of the hydraulic telescoping mechanism 5, the movable plate 11 is driven by the hydraulic telescoping mechanism 5 to move downwards, an upper adjusting rod 12 is disposed below the movable plate 11, two sections of external threads with opposite directions are symmetrically disposed on the upper adjusting rod 12, an upper movable block 10 is respectively connected to the two sections of external threads, the upper movable block 10 is slidably connected to the movable plate 11, the upper movable block 10 is driven to move on the movable plate 11 by rotating the upper adjusting rod 12, an upper mounting plate 15 is disposed between the upper movable blocks 10, an upper movable rod 13 is respectively arranged at two ends of the upper mounting plate 15, the upper movable rod 13 is connected with the upper mounting plate 15 in a sliding manner, lower adjusting rods 19 are symmetrically arranged at two ends of the supporting plate 6, two sections of external threads with opposite directions are symmetrically arranged on the lower adjusting rods 19, two sections of external threads are respectively connected with a lower movable block 18 in a threaded manner, the lower movable blocks 18 are connected with the supporting plate 6 in a sliding manner, the lower movable blocks 18 can be driven to move on the supporting plate 6 by rotating the lower adjusting rods 19, a lower mounting plate 16 is arranged between the lower movable blocks 18, two ends of the lower mounting plate 16 are respectively provided with a lower movable rod 17, the upper movable rods 17 are connected with the lower mounting plate 16 in a sliding manner, U-shaped piece bending mechanisms 1 and V-shaped piece bending mechanisms 2 are respectively arranged at two ends of the supporting plate 6, the U-shaped piece bending mechanisms 1 comprise first upper pressing blocks 20 and first lower pressing blocks 23, the V-shaped piece bending mechanisms 2, the first upper pressing block 20 is symmetrically arranged at two ends of an upper mounting plate 15, the first upper pressing block 20 is connected with the upper mounting plate 15 in a sliding manner, one end of the upper movable rod 13 is connected with the upper movable block 10, the other end of the upper movable rod is connected with the first upper pressing block 20, the first upper pressing block 20 can be driven to move on the upper mounting plate 15 through the upper movable block 10, the first lower pressing block 23 is symmetrically arranged on a lower mounting plate 16 corresponding to the first upper pressing block 20, the first lower pressing block 23 is connected with the lower mounting plate 16 in a sliding manner, one end of the lower movable rod 17 is connected with the lower movable block 18, the other end of the lower movable rod is connected with the first lower pressing block 23, the first lower pressing block 23 can be driven to move on the lower mounting plate 16 through the lower movable block 18, so that the bending distance of the U-shaped part can be adjusted, the two second upper pressing blocks 24 are symmetrically arranged on the other upper mounting plate 15, the other ends of the two second upper pressing blocks 24 are rotatably connected with a sliding block 25 arranged on the upper mounting plate 15, one end of the upper movable rod 13 is connected with the upper movable block 10, the other end of the upper movable rod is connected with the sliding block 25, the sliding block 25 can be driven by the upper movable block 10 to move on the upper mounting plate 15, so as to adjust the V-shaped angle formed between the second upper pressing blocks 24, the two second lower pressing blocks 27 are symmetrically arranged on a lower mounting plate 16 corresponding to the second upper pressing blocks 24, one end of the second lower pressing block 27 is rotatably connected with the lower mounting plate 16, the other end of the second lower pressing block 27 is rotatably connected with a horizontal block 26 arranged on the lower mounting plate 16, one end of the lower movable rod 17 is connected with the lower movable block 18, the other end of the lower movable rod is connected with the horizontal block 26, the horizontal block 26 can be driven by the lower movable block 18 to move in the horizontal direction, so as to adjust the angle of the V-shaped groove formed by the second lower, one end of the upper adjusting rod 12 and one end of the corresponding lower adjusting rod 19 are in transmission connection with gears at two ends of the telescopic transmission rod 14 respectively, when the device is used, the corresponding upper adjusting rod 12 and the corresponding lower adjusting rod 19 can be driven to rotate respectively through rotation of the telescopic transmission rod 14, the lower movable block 18 keeps synchronous motion while the upper movable block 10 moves, uniformity of the U-shaped piece bending mechanism 1 or the V-shaped piece bending mechanism 2 during adjustment is guaranteed, a worker can adjust bending sizes of the U-shaped piece and bending angles of the V-shaped piece conveniently, machining universality of the bending device for machining a steel structure is improved, the movable plate 11 is driven to move downwards through the hydraulic telescopic mechanism 5, the first upper pressing block 20 and the first lower pressing block 23 are matched to press the steel plate into a U shape, and the second upper pressing block 24 and the second lower pressing block 27 are matched to press the steel plate into a V shape.

The below of backup pad 6 is equipped with bottom plate 8, is equipped with buffer gear 7 between bottom plate 8 and the backup pad 6, and buffer gear 7 is including setting up at backup pad 6 below kicking block 36, kicking block 36 and the dashpot 35 sliding connection who sets up at bottom plate 8, is equipped with interior buffer spring 37 in the dashpot 35, and interior buffer spring 37's one end is connected with kicking block 36, and the other end is connected with the bottom of dashpot 35, dashpot 35 periphery cover has outer buffer spring 34, and outer buffer spring 34's one end is connected with bottom plate 8, and the other end is connected with backup pad 6, can weaken the vibrations that steel construction processing received with buckling device in the use through spring 32, outer buffer spring 34 and interior buffer spring 37.

The below slope of backup pad 6 is provided with branch 30, and the one end and the backup pad 6 of branch 30 rotate to be connected, and the other end rotates with the one side of setting buffer block 31 on bottom plate 8 to be connected, buffer block 31 and bottom plate 8 sliding connection, the opposite side of buffer block 31 is equipped with spring 32, and spring 32's one end is connected with buffer block 31, and the other end is connected with the dog 33 that sets up on bottom plate 8, promotes buffer block 31 through branch 30 and moves on bottom plate 8, compression or extension spring 32 to weaken steel construction processing with the vibrations that the device of buckling received in the use, extension fixture's life.

A U-shaped adjusting crank 28 is arranged below one telescopic transmission rod 14, a V-shaped adjusting crank 29 is arranged below the other telescopic transmission rod 14, one end of each of the U-shaped adjusting crank 28 and the V-shaped adjusting crank 29 is in transmission connection with a gear at the lower end of one telescopic transmission rod 14, a worker can adjust the bending distance of the U-shaped part conveniently by rotating the U-shaped adjusting crank 28, and the worker can adjust the bending angle of the V-shaped part conveniently by rotating the V-shaped adjusting crank 29.

When the pressing device is used, the pressing plate 22 presses the steel plate under the action of the pressing spring 21, so that the first upper pressing block 20 can be better matched with the first lower pressing block 23 to press the steel plate into a U shape.

The working principle of the embodiment is as follows: when the device is used, the U-shaped adjusting crank 28 or the V-shaped adjusting crank 29 is rotated to drive the corresponding telescopic transmission rod 14 to rotate, the corresponding upper adjusting rod 12 and the corresponding lower adjusting rod 19 are driven to rotate, the upper movable block 10 moves, meanwhile, the lower movable block 18 keeps synchronous motion, the U-shaped piece bending mechanism 1 or the V-shaped piece bending mechanism 2 can ensure uniformity during adjustment, a worker can conveniently adjust the bending size of the U-shaped piece and the bending angle of the V-shaped piece, the movable plate 11 is driven to move downwards through the hydraulic telescopic mechanism 5, the first upper pressing block 20 and the first lower pressing block 23 are matched to press the steel plate into a U shape, and the second upper pressing block 24 and the second lower pressing block 27 are matched to press the steel plate into a V shape, the vibration of the bending device for steel structure processing in the using process can be weakened through the outer buffer spring 34 and the inner buffer spring 37, and the service life of the device is prolonged.

Example 2

In order to enable the bending device for processing the steel structure to be stably placed, the embodiment is further improved on the basis of embodiment 1, and the improvement is as follows: the lower part of the bottom plate 8 is provided with a pad leg 9, the pad leg 9 comprises a threaded column 38 and a connecting column 40, the upper end of the threaded column 38 is connected with the bottom plate 8, the lower end of the threaded column 38 is connected with the connecting column 40 in a sliding manner, the threaded column 38 is in threaded connection with an adjusting block 39, the adjusting block 39 is in rotational connection with the connecting column 40, the height of the pad leg 9 can be adjusted by rotating the adjusting block 39, a vertical rod 42 is arranged below the connecting column 40, one end of the vertical rod 42 is in sliding connection with the connecting column 40, the other end of the vertical rod 42 is provided with a cushion block 43, the vertical spring 41 is sleeved outside the vertical rod 42, one end of the vertical spring 41 is connected with the connecting column 40, the other end of the vertical spring is connected with the cushion block 43, the vibration of the bending device for steel structure processing in the using process can be further weakened through the, the bottom of cushion 43 is equipped with the slipmat, can increase the frictional force that fills up leg 9 and ground through the slipmat, makes the steel construction processing place with buckling the device and can be more stable, and the material of slipmat does not restrict, and in this embodiment, preferred, the material of slipmat is rubber.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. A bending device for steel structure machining comprises an upper plate (3) and a supporting plate (6), and is characterized in that a stand column (4) is arranged between the upper plate (3) and the supporting plate (6), one end of the stand column (4) is connected with the upper plate (3), the other end of the stand column is connected with the supporting plate (6), hydraulic telescopic mechanisms (5) are symmetrically arranged at two ends of the upper plate (3), a telescopic end of each hydraulic telescopic mechanism (5) faces downwards along the vertical direction, a movable plate (11) is arranged at the telescopic end, an upper adjusting rod (12) is arranged below the movable plate (11), two sections of external threads with opposite directions are symmetrically arranged on the upper adjusting rod (12), an upper movable block (10) is respectively in threaded connection with the two sections of external threads, the upper movable block (10) is in sliding connection with the movable plate (11), an upper mounting plate (15) is arranged between the upper movable blocks (10), and two ends of the upper mounting plate (15) are respectively provided, go up movable rod (13) and last mounting panel (15) sliding connection, adjusting rod (19) down has been laid to the both ends symmetry of backup pad (6), adjusting rod (19) down has been laid to the symmetry and has been equipped with two sections opposite direction's external screw thread and two sections external screw threads respectively on the screw thread connection one down movable block (18), lower movable block (18) and backup pad (6) sliding connection, be equipped with down mounting panel (16) down between movable block (18), the both ends of lower mounting panel (16) are equipped with one down movable rod (17) respectively, go up movable rod (17) and mounting panel (16) sliding connection down, the both ends of backup pad (6) are equipped with U-shaped spare respectively and buckle mechanism (2) are buckled to U-shaped spare, U-shaped spare buckle mechanism (1) includes first briquetting (20) and first briquetting (23) down, V-shaped spare buckle mechanism (2) includes briquetting (24) and briquetting (27) down on the second, the two ends of an upper mounting plate (15) are symmetrically distributed on the first upper pressing block (20), the first upper pressing block (20) is connected with the upper mounting plate (15) in a sliding manner, one end of an upper movable rod (13) is connected with an upper movable block (10), the other end of the upper movable rod is connected with the first upper pressing block (20), the first lower pressing block (23) is symmetrically distributed on a lower mounting plate (16) corresponding to the first upper pressing block (20), the first lower pressing block (23) is connected with the lower mounting plate (16) in a sliding manner, one end of a lower movable rod (17) is connected with a lower movable block (18), the other end of the lower movable rod is connected with the first lower pressing block (23), the two upper pressing blocks (24) are symmetrically distributed on the other upper mounting plate (15), one ends of the two upper pressing blocks (24) are rotatably connected, the other ends of the two upper pressing blocks (24) are rotatably connected with a sliding block (25) arranged on the upper mounting plate (15), go up the one end and the last movable block (10) of movable rod (13) and be connected, the other end is connected with slider (25), two briquetting (27) symmetry has been laid down under the second on lower mounting panel (16) that corresponds with briquetting (24) on the second, and the one end of briquetting (27) is rotated with lower mounting panel (16) and is connected under the second, and horizontal piece (26) that the other end set up on lower mounting panel (16) rotate and are connected, the one end and the lower movable block (18) of activity pole (17) are connected down, and the other end is connected with horizontal piece (26), two go up the one side of adjusting pole (12) and be equipped with a telescopic transfer line (14) respectively, go up the one end of adjusting pole (12) and corresponding lower adjusting pole (19) and be connected with the both ends gear drive of telescopic transfer line (14) respectively.

2. The bending device for machining the steel structure according to claim 1, wherein a bottom plate (8) is arranged below the supporting plate (6), a buffer mechanism (7) is arranged between the bottom plate (8) and the supporting plate (6), the buffer mechanism (7) comprises a top block (36) arranged below the supporting plate (6), the top block (36) is in sliding connection with a buffer groove (35) formed in the bottom plate (8), an inner buffer spring (37) is arranged in the buffer groove (35), one end of the inner buffer spring (37) is connected with the top block (36), the other end of the inner buffer spring is connected with the bottom of the buffer groove (35), an outer buffer spring (34) is sleeved on the periphery of the buffer groove (35), one end of the outer buffer spring (34) is connected with the bottom plate (8), and the other end of the outer buffer spring is connected with the supporting plate (6).

3. The bending device for processing the steel structure according to claim 2, wherein a supporting rod (30) is obliquely arranged below the supporting plate (6), one end of the supporting rod (30) is rotatably connected with the supporting plate (6), the other end of the supporting rod is rotatably connected with one side of a buffer block (31) arranged on the bottom plate (8), the buffer block (31) is slidably connected with the bottom plate (8), a spring (32) is arranged on the other side of the buffer block (31), one end of the spring (32) is connected with the buffer block (31), and the other end of the spring is connected with a stop block (33) arranged on the bottom plate (8).

4. The bending device for processing the steel structure according to claim 1, wherein a U-shaped adjusting crank (28) is arranged below one telescopic transmission rod (14), a V-shaped adjusting crank (29) is arranged below the other telescopic transmission rod (14), and one end of each of the U-shaped adjusting crank (28) and the V-shaped adjusting crank (29) is in transmission connection with a gear at the lower end of one telescopic transmission rod (14).

5. The bending device for processing the steel structure according to claim 1, wherein a pre-pressing plate (22) is arranged between the two first upper pressing blocks (20), a pre-pressing spring (21) is arranged between the pre-pressing plate (22) and the upper mounting plate (15), one end of the pre-pressing spring (21) is connected with the upper mounting plate (15), and the other end of the pre-pressing spring is connected with the pre-pressing plate (22).

6. The bending device for processing the steel structure according to claim 3, wherein a pad leg (9) is arranged below the bottom plate (8), the pad leg (9) comprises a threaded column (38) and a connecting column (40), the upper end of the threaded column (38) is connected with the bottom plate (8), the lower end is connected with the connecting column (40) in a sliding way, the threaded column (38) is connected with an adjusting block (39) in a threaded way, the adjusting block (39) is rotationally connected with the connecting column (40), a vertical rod (42) is arranged below the connecting column (40), one end of the vertical rod (42) is connected with the connecting column (40) in a sliding way, a cushion block (43) is arranged at the other end, vertical spring (41) has been overlapped in montant (42), and the one end and the spliced pole (40) of vertical spring (41) are connected, and the other end and cushion (43), the bottom of cushion (43) is equipped with the slipmat.

7. The bending device for machining the steel structure according to claim 6, wherein the non-slip mat is made of rubber.