CN115229514A

CN115229514A - Steel combined punching shear bending equipment

Info

Publication number: CN115229514A
Application number: CN202211163530.9A
Authority: CN
Inventors: 包丽丽; 李朋
Original assignee: Jiangsu Bofanke Precision Hardware Technology Co ltd
Current assignee: Jiangsu Bofanke Precision Hardware Technology Co ltd
Priority date: 2022-09-23
Filing date: 2022-09-23
Publication date: 2022-10-25

Abstract

The invention relates to a steel combined punching, shearing and bending device. The steel combined punching-shearing bending equipment comprises a base, a conveyor arranged on the base, a plurality of supports symmetrically connected to a conveyor frame body, a plurality of air cylinders and hydraulic cylinders connected to the supports, a limiting plate connected to the output end of the air cylinders, a punching-shearing tool bit connected to the output end of the hydraulic cylinders, and a bending mechanism arranged on the output end side of the conveyor, wherein the conveyor is used for conveying steel to the bending mechanism, the air cylinders are used for controlling the position of the steel on the conveyor and clamping the steel when the bending mechanism bends the steel, and the hydraulic cylinders are used for punching and shearing the steel; this steel is jointly towards shearing equipment of bending is applicable to the work piece of the different cambered surfaces of bending, the diameter of bending, can carry out convenient regulation to the diameter of center pin post, is applicable to the demand of bending of different work pieces to when the diameter of regulation center pin post, can change the position of the cylinder of bending, be used for the change of adaptation center pin post diameter.

Description

Steel combined punching shear bending equipment

Technical Field

The invention belongs to the field of metal processing equipment, and particularly relates to steel combined punching, shearing and bending equipment.

Background

The sheet metal bending processing refers to bending processing of a sheet metal part to enable the sheet metal part to be bent and deformed so as to manufacture sheet metal parts in different shapes, generally, bending and forming of the sheet metal part are performed on a bending machine, a workpiece to be formed is placed on the bending machine, a lifting lever is used for lifting a brake shoe, the workpiece slides to a proper position, then the brake shoe is lowered onto the workpiece to be formed, and force is applied to a bending lever on the bending machine to achieve bending and forming of the metal.

At present comparatively common bender kind is more, can bend into various radians with the sheet metal component, various shapes, like the Z style of calligraphy, U style of calligraphy etc., wherein, what a bender adopted is attached the sheet metal component in fixed cylinder department, utilize another cylinder to rotate around fixed cylinder and bend the sheet metal component along fixed cylinder circumferential surface, and the sheet metal component that this kind of mode was bent out is the U type more, the C type, the shape of O type or L type, and the diameter of fixed cylinder is unchangeable, and the fixed cylinder of the different diameters of unable convenient change, and this also leads to its unable different cambered surfaces of production, the sheet metal component of the diameter of bending, need one set of bender of redesign, cause one set of improvement of manufacturing cost.

Disclosure of Invention

The invention aims to solve the problems and provide the steel combined punching, shearing and bending equipment which is simple in structure and reasonable in design.

The invention achieves the above purpose through the following technical scheme:

a steel combined punching shear bending device comprises a base, a conveyor arranged on the base, a plurality of supports symmetrically connected to a conveyor frame body, a plurality of air cylinders and hydraulic cylinders connected to the supports, a limiting plate connected to the output end of the air cylinders, a punching shear cutter head connected to the output end of the hydraulic cylinders and a bending mechanism arranged on the output end side of the conveyor, wherein the conveyor is used for conveying steel to the bending mechanism;

the mechanism of bending is including connecting center pedestal, swing joint on the base cylinder, connecting the workstation of bending on the cylinder, connecting the cylinder of bending on the workstation of bending and connecting the diameter adjustment mechanism on center pedestal on the cylinder, be connected with first ring gear on the outer wall of cylinder, be connected with the second motor on the base, the output shaft of second motor has the first drive gear with first ring gear engaged with, and the second motor is used for the drive cylinder of bending to be circular motion and bend the steel that is located between the two around center pedestal, and diameter adjustment mechanism is used for the diameter of the last tip of center pedestal.

As a further optimization scheme of the invention, a through groove for the central shaft column to pass through and the diameter adjusting mechanism to move up and down is formed in the middle of the bending workbench, a moving groove is formed in the wall of the bending workbench, a first motor is connected to the outer wall of the bending workbench, an output shaft of the first motor is connected with a first lead screw, the first lead screw is located in the moving groove, a first sliding block in threaded connection with the first lead screw is arranged in the moving groove, and the first sliding block is connected with the bending cylinder.

As a further optimized scheme of the present invention, the diameter adjusting mechanism includes a power output mechanism and a hardware adjusting mechanism, the power output mechanism is disposed at a lower position of the central shaft column, and the power output mechanism is configured to drive the hardware adjusting mechanism to move to an upper position of the central shaft column along an axis of the central shaft column and to be matched with the bending cylinder.

As a further optimization scheme of the invention, the power output mechanism comprises a plurality of sliding chambers arranged in a central shaft column, a plurality of sliding chutes and vent holes arranged on the outer wall of the sliding chambers, a partition plate connected at the communication position of the vent holes and the sliding chambers, an air bag connected on the partition plate, a second slide block connected at one end of the air bag, a buffer spring arranged in the air bag, an annular support plate movably connected on the outer wall of the central shaft column, an air nozzle and a second ring gear respectively connected on the upper end and the outer wall of the annular support plate, and a third motor connected on a base, wherein an output shaft of the third motor is connected with a second driving gear meshed with the second ring gear, the air nozzle is used for inputting or extracting air to the vent holes, and the plurality of sliding chutes and the vent holes are correspondingly communicated through the plurality of sliding chambers.

As a further optimization scheme of the invention, the partition plate is provided with a plurality of air inlets and air outlets, the air inlets and the air outlets are communicated with the interior of the air bag, the partition plate is connected with a plastic film, and only one end of the plastic film is connected with the partition plate and covers the plurality of air inlets.

As a further optimized scheme of the present invention, the hardware adjusting mechanism includes a plurality of ring bodies sequentially sleeved outside the central shaft column from inside to outside and a connecting support plate respectively connected to bottom ends of the plurality of ring bodies, diameters of the plurality of ring bodies increase sequentially from inside to outside, and one end of the connecting support plate extends into a correspondingly disposed sliding groove to be connected to a correspondingly disposed second slider.

As a further preferable aspect of the present invention, a distance between the top end surface of the ring body and the top end surface of the central post is equal to a length of the sliding groove.

As a further optimization scheme of the invention, the lower end of the cylinder body is connected with a sliding ring, the base is provided with an annular limiting groove matched with the sliding ring, and a lubricant is arranged between the sliding ring and the annular limiting groove.

As a further optimization scheme of the invention, the surface of the conveying belt of the conveyor is flush with the upper end face of the bending workbench.

The invention has the beneficial effects that: the bending device is suitable for producing workpieces with different bending cambered surfaces and bending diameters, can conveniently adjust the diameter of the central shaft column, is suitable for the bending requirements of different workpieces, and can change the position of the bending column body when the diameter of the central shaft column is adjusted for adapting to the change of the diameter of the central shaft column.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a mating view of the bending station and cylinder of the present invention;

FIG. 3 is a mating view of the ring body and the center post of the present invention;

FIG. 4 is an enlarged view of the invention at A in FIG. 3;

FIG. 5 is an enlarged view of the invention at B in FIG. 3;

FIG. 6 is a mating view of the connecting support plate and ring body of the present invention;

FIG. 7 is a partial cross-sectional view of a mandrel post according to the present invention;

FIG. 8 is a mating view of the gas shower head and annular backing plate of the present invention.

In the figure: 1. a base; 2. a conveyor; 201. a support; 301. a cylinder; 302. a limiting plate; 303. a hydraulic cylinder; 304. a punching and shearing tool bit; 401. a central axial column; 402. a cylindrical body; 4020. a first ring gear; 4021. a slip ring; 403. bending the workbench; 4030. penetrating a groove; 4031. a moving groove; 4032. a first motor; 4033. a first lead screw; 4034. a first slider; 404. bending the column body; 405. a second motor; 4050. a first drive gear; 5. a diameter adjustment mechanism; 501. a sliding chamber; 502. a chute; 503. a vent hole; 504. a partition plate; 5040. an air intake; 5041. an exhaust hole; 5042. a plastic film; 505. a second slider; 506. connecting the supporting plate; 507. a ring body; 508. an air bag; 509. a buffer spring; 510. an annular support plate; 511. a second ring gear; 512. a gas shower head; 513. a third motor; 514. a second drive gear.

Detailed Description

The present application will now be described in further detail with reference to the drawings, and it should be noted that the following detailed description is given for purposes of illustration only and should not be construed as limiting the scope of the present application, as these numerous insubstantial modifications and variations can be made by those skilled in the art based on the teachings of the present application.

Example 1

As shown in fig. 1 and 2, a steel combined punching-shearing bending device includes a base 1, a conveyor 2 disposed on the base 1, a plurality of supports 201 symmetrically connected to a frame body of the conveyor 2, a plurality of air cylinders 301 and hydraulic cylinders 303 connected to the supports 201, a limiting plate 302 connected to an output end of the air cylinders 301, a punching-shearing tool bit 304 connected to an output end of the hydraulic cylinders 303, and a bending mechanism disposed at an output end side of the conveyor 2, wherein the conveyor 2 is used for conveying steel to the bending mechanism, the air cylinders 301 are used for controlling a position of the steel on the conveyor 2 and clamping the steel when the bending mechanism bends the steel, and the hydraulic cylinders 303 are used for punching-shearing the steel;

the bending mechanism comprises a central shaft column 401 connected to the base 1, a cylinder 402 movably connected to the base 1, a bending workbench 403 connected to the upper end of the cylinder 402, a bending cylinder 404 connected to the bending workbench 403 and a diameter adjusting mechanism 5 connected to the central shaft column 401, a first ring gear 4020 is connected to the outer wall of the cylinder 402, a second motor 405 is connected to the base 1, an output shaft of the second motor 405 is connected with a first driving gear 4050 meshed with the first ring gear 4020, the second motor 405 is used for driving the bending cylinder 404 to do circular motion around the central shaft column 401 and bend steel positioned between the first and the second ring gears, and the diameter adjusting mechanism 5 is used for adjusting the diameter of the upper end portion of the central shaft column 401. The belt surface of the conveyor 2 is flush with the upper end face of the bending table 403.

When steel is processed, the steel is placed on the conveyor 2, the air cylinder 301 is adjusted to move the limit plate 302 to limit the moving path of the steel on the conveyor 2 according to the specification and size of the steel, the steel moves to the bending mechanism along with the conveying of the conveyor 2, the steel can be inserted into a bending part of the bending mechanism, when the steel is bent, the conveyor 2 stops working, the steel is clamped by the air cylinder 301 to be limited and fixed, then the steel is bent by the bending mechanism, the bending mechanism resets after processing, the punching shear tool bit 304 is driven by the hydraulic cylinder 303 to cut the steel after processing, at the moment, the hydraulic cylinder 303 and the air cylinder 301 both reset to the position for initial limit adjustment, the conveyor 2 continues working and drives the subsequent steel to eject the previously bent steel part, and the processing process of the next section of steel is performed;

the bending process specifically comprises the steps that according to the specification of steel and machining requirements, the diameter of the upper end portion of a central shaft column 401 is adjusted to be a matching value through a diameter adjusting mechanism 5, after the steel moves to a bending workbench 403, the steel is inserted into a bending gap between the central shaft column 401 and a bending cylinder 404, the steel is limited and fixed at the moment, a second motor 405 drives a first driving gear 4050 to rotate and drives a first ring gear 4020 and a cylinder 402 to rotate circumferentially, the cylinder 402 drives the bending workbench 403 and the bending cylinder 404 to rotate circumferentially around the central shaft column 401, the rotation angle is adjustable, the bending cylinder 404 bends the steel when rotating, the steel bending portion is attached to the surface of the central shaft column 401, and therefore, the steel in different shapes can be produced by adjusting the diameter of the central shaft column 401, and the bending machine is suitable for manufacturing workpieces with different requirements.

As shown in fig. 2, a through groove 4030 through which the central spindle column 401 passes and the diameter adjusting mechanism 5 moves up and down is formed in the middle of the bending workbench 403, a moving groove 4031 is formed in a wall of the bending workbench 403, a first motor 4032 is connected to the outer wall of the bending workbench 4031, an output shaft of the first motor 4032 is connected to a first lead screw 4033, the first lead screw 4033 is located in the moving groove 4031, a first slider 4034 in threaded connection with the first lead screw 4033 is formed in the moving groove 4031, and the first slider 4034 is connected to the bending cylinder 404.

It should be noted that, in the above bending process, when the diameter of the upper portion of the central shaft column 401 is adjusted, the position of the bending cylinder 404 also needs to be adjusted correspondingly, when the adjustment is performed, the first motor 4032 drives the first lead screw 4033 to rotate, the first lead screw 4033 drives the first slider 4034 to move in the moving groove 4031 when rotating, and when the first slider 4034 moves, the bending cylinder 404 can be driven to move in the same direction and at the same distance, so that the positional relationship between the bending cylinder 404 and the central shaft column 401 can be adjusted conveniently, and the positional relationship is adapted to the change of the diameter of the upper end portion of the central shaft column 401.

As shown in fig. 3, the diameter adjusting mechanism 5 includes a power output mechanism and a hardware adjusting mechanism, which are disposed at a lower position of the central shaft column 401, and the power output mechanism is used for driving the hardware adjusting mechanism to move to an upper position of the central shaft column 401 along an axis of the central shaft column 401 and to be matched with the bending cylinder 404.

It should be noted that, during adjustment, the hardware adjusting mechanism is driven by the power output mechanism to move to the upper end of the central shaft column 401, so as to be matched with the bending column 404.

As shown in fig. 3, fig. 4, fig. 6, and fig. 7, the hardware adjusting mechanism includes a plurality of ring bodies 507 sequentially sleeved outside the central shaft column 401 from inside to outside and a connecting support plate 506 respectively connected to the bottom ends of the plurality of ring bodies 507, the diameters of the plurality of ring bodies 507 increase sequentially from inside to outside, and one end of the connecting support plate 506 extends into the correspondingly disposed sliding groove 502 to be connected to the correspondingly disposed second slider 505.

It should be noted that, a plurality of ring bodies 507 are sequentially sleeved outside the central axis column 401, the increased diameter of each ring body 507 is the same, specifically, the design can be performed according to the precision required by actual production, for example, the diameter is sequentially increased by one millimeter, one centimeter, and the like, the number of the ring bodies 507 can be increased or decreased according to the requirement, the bottom of each ring body 507 is supported by one connecting support plate 506 and connected with the corresponding output end of the power output mechanism, as shown in fig. 6, the length of the connecting support plate 506 connected with each ring body 507 is different, for example, the length of the connecting support plate 506 connected with the first ring body 507 sleeved outside the central axis column 401 is different from the length of the connecting support plate 506 connected with the second ring body 507, the connecting support plate 506 connected with the second ring body 507 passes through the first ring body 507, and the same principle, the connecting support plate 506 connected with the third ring body 507 passes through the first ring body 507 and the second ring body 507, and so on the same principle, when the diameter adjustment is performed, for the diameter adjustment, for the connecting support plate 507, the power output mechanism is capable of controlling the power output of the first ring body 507 and the power output mechanism, and the power output mechanism is capable of controlling the movement of the second ring body 507, and the power output mechanism is capable of the ring body 507.

As shown in fig. 3, 4, 5 and 8, the power output mechanism includes a plurality of sliding chambers 501 disposed in the central shaft column 401, a plurality of sliding grooves 502 and vent holes 503 opened on an outer wall of the sliding chambers 501, a partition plate 504 connected to a communication part between the vent holes 503 and the sliding chambers 501, an air bag 508 connected to the partition plate 504, a second slider 505 connected to one end of the air bag 508, a buffer spring 509 disposed in the air bag 508, an annular support plate 510 movably connected to an outer wall of the central shaft column 401, an air nozzle 512 and a second annular gear 511 respectively connected to an upper end and the outer wall of the annular support plate 510, and a third motor 513 connected to the base 1, an output shaft of the third motor 513 is connected to a second driving gear 514 engaged with the second annular gear 511, the air nozzle 512 is used for inputting or extracting air to or from the vent holes 503, and the plurality of sliding grooves 502 and vent holes 503 are correspondingly communicated through the plurality of sliding chambers 501.

It should be noted that, during diameter adjustment, the power output mechanism selectively drives the corresponding ring body 507 according to the diameter increase value, and during selection, the second driving gear 514 is driven to rotate by the third motor 513, the second driving gear 514 drives the second ring gear 511 to rotate when rotating, at this time, the air nozzle 512 connected thereto rotates in the same direction and at the same angle along with the second ring gear 511, so that the air nozzle 512 rotates to the vent hole 503 corresponding to the corresponding ring body 507, then gas is input into the vent hole 503, the gas is introduced into the air bag 508 and makes it swell in the sliding chamber 501, and the second slider 505 is pushed to move towards the top of the sliding chamber 501, and when the second slider 505 moves, the support plate 506 and the corresponding ring body 507 are driven to move upwards, so that the diameter of the upper portion of the central shaft body changes, which is suitable for bending different workpieces, and after the air nozzle 512 moves away, the gas in the air bag 508 is discharged from the vent hole 503 by the gravity of the air bag 507, so that the corresponding ring body 507 can be reset. The gas nozzle 512 is connected to an external gas source.

The buffer spring 509 in the air bag 508 is used for buffering the impact force generated when the connecting support plate 506 moves downwards, and preventing the connecting support plate 506 from directly impacting the inner wall of the sliding groove 502.

As shown in fig. 5, the partition plate 504 is provided with a plurality of air inlet holes 5040 and air outlet holes 5041, the air inlet holes 5040 and the air outlet holes 5041 are both communicated with the inside of the airbag 508, the partition plate 504 is connected with a plastic film 5042, and only one end of the plastic film 5042 is connected with the partition plate 504 and covers the plurality of air inlet holes 5040.

It should be noted that when ring body 507 moves upward, air is introduced into vent 503 by air nozzle 512, and when air flows in from air inlet 5040, plastic film 5042 covering air inlet 5040 can be lifted, and at this time, air can simultaneously enter air bag 508 from air inlet 5040 and air outlet 5041, so that air bag 508 can be quickly lifted, and ring body 507 moves upward, and when ring body 507 moves downward, and when air is discharged from air bag 508, air flow presses plastic film 5042 on air inlet 5040, and at this time, air can only be slowly discharged from air outlet 5041, and in cooperation with buffer spring 509, the downward movement process of ring body 507 can be always in a slow, stable and safe state.

Wherein, the distance between the top end surface of the ring body 507 and the top end surface of the central shaft column 401 is equal to the length of the sliding groove 502. The moving stroke of the ring body 507 is the length of the sliding groove 502.

Further, the lower end of the cylinder 402 is connected with a sliding ring 4021, the base 1 is provided with an annular limiting groove matched with the sliding ring 4021, and a lubricant is arranged between the sliding ring 4021 and the annular limiting groove. During bending, the lubricant can effectively reduce the frictional resistance applied to the cylinder 402 during rotation, and can reduce the loss of the output power of the second motor 405.

In the description of the present invention, it is to be understood that the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implying any number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature "under," "beneath," and "under" a second feature may be directly under or obliquely under the second feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.

The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention.

Claims

1. The combined punching, shearing and bending equipment for the steel is characterized by comprising a base (1), a conveyor (2) arranged on the base (1), a plurality of supports (201) symmetrically connected to a support body of the conveyor (2), a plurality of air cylinders (301) and hydraulic cylinders (303) connected to the supports (201), a limiting plate (302) connected to the output end of the air cylinders (301), a punching and shearing tool bit (304) connected to the output end of the hydraulic cylinders (303) and a bending mechanism arranged on the output end side of the conveyor (2), wherein the conveyor (2) is used for conveying the steel to the bending mechanism, the air cylinders (301) are used for controlling the position of the steel on the conveyor (2) and clamping the steel when the bending mechanism bends the steel, and the hydraulic cylinders (303) are used for punching and shearing the steel;

the bending mechanism comprises a central shaft column (401) connected to the base (1), a cylinder (402) movably connected to the base (1), a bending workbench (403) connected to the upper end of the cylinder (402), a bending cylinder (404) connected to the bending workbench (403) and a diameter adjusting mechanism (5) connected to the central shaft column (401), wherein a first annular gear (4020) is connected to the outer wall of the cylinder (402), a second motor (405) is connected to the base (1), an output shaft of the second motor (405) is connected with a first driving gear (4050) meshed with the first annular gear (4020), the second motor (405) is used for driving the bending cylinder (404) to do circular motion around the central shaft column (401) and bend steel located between the central shaft column and the central shaft column, and the diameter adjusting mechanism (5) is used for adjusting the diameter of the upper end portion of the central shaft column (401).

2. The steel combined punching, shearing and bending equipment as claimed in claim 1, wherein: the middle part of the bending workbench (403) is provided with a through groove (4030) for a central shaft column (401) to penetrate and a diameter adjusting mechanism (5) to move up and down, a moving groove (4031) is formed in the wall of the bending workbench (403), the outer wall of the bending workbench is connected with a first motor (4032), an output shaft of the first motor (4032) is connected with a first lead screw (4033), the first lead screw (4033) is located in the moving groove (4031), a first sliding block (4034) in threaded connection with the first lead screw (4033) is arranged in the moving groove (4031), and the first sliding block (4034) is connected with the bending cylinder (404).

3. The steel combined punching, shearing and bending device according to claim 2, characterized in that: the diameter adjusting mechanism (5) comprises a power output mechanism and a hardware adjusting mechanism, the power output mechanism and the hardware adjusting mechanism are arranged at the lower portion of the central shaft column (401), and the power output mechanism is used for driving the hardware adjusting mechanism to move to the upper portion of the central shaft column (401) along the axis of the central shaft column (401) and to be matched with the bending cylinder (404).

4. The steel combined punching, shearing and bending device according to claim 3, wherein: the power output mechanism comprises a plurality of sliding chambers (501) arranged in a central shaft column (401), a plurality of sliding grooves (502) and vent holes (503) arranged on the outer wall of the sliding chambers (501), a partition plate (504) connected at the communication position of the vent holes (503) and the sliding chambers (501), an air bag (508) connected to the partition plate (504), a second sliding block (505) connected to one end of the air bag (508), a buffer spring (509) arranged in the air bag (508), an annular supporting plate (510) movably connected to the outer wall of the central shaft column (401), an air nozzle (512) and a second annular gear (511) respectively connected to the upper end and the outer wall of the annular supporting plate (510), and a third motor (513) connected to a base (1), wherein an output shaft of the third motor (513) is connected with a second driving gear (514) meshed with the second annular gear (511), the air nozzle (512) is used for inputting or extracting air into or extracting air from the vent holes (503), and the plurality of sliding chambers (501) are correspondingly communicated with the vent holes (503).

5. The steel combined punching, shearing and bending equipment as claimed in claim 4, wherein: the air bag is characterized in that a plurality of air inlets (5040) and air outlets (5041) are formed in the partition plate (504), the air inlets (5040) and the air outlets (5041) are communicated with the interior of the air bag (508), a plastic film (5042) is connected to the partition plate (504), and only one end of the plastic film (5042) is connected with the partition plate (504) and covers the plurality of air inlets (5040).

6. The steel combined punching, shearing and bending equipment as claimed in claim 4, wherein: the hardware adjusting mechanism comprises a plurality of ring bodies (507) and a connecting support plate (506), wherein the ring bodies (507) are sequentially sleeved outside the central shaft column (401) from inside to outside, the connecting support plate (506) is respectively connected to the bottom ends of the ring bodies (507), the diameters of the ring bodies (507) are sequentially increased from inside to outside, and one end of the connecting support plate (506) extends into a sliding groove (502) which is correspondingly arranged and is connected with a second sliding block (505) which is correspondingly arranged.

7. The steel material combined punching, shearing and bending equipment as claimed in claim 6, wherein: the distance between the top end surface of the ring body (507) and the top end surface of the central shaft column (401) is equal to the length of the sliding groove (502).

8. The steel combined punching, shearing and bending equipment as claimed in claim 1, wherein: the lower end of the cylinder (402) is connected with a sliding ring (4021), an annular limiting groove matched with the sliding ring (4021) is formed in the base (1), and a lubricant is arranged between the sliding ring (4021) and the annular limiting groove.

9. The steel combined punching, shearing and bending equipment as claimed in claim 1, wherein: the surface of the conveying belt of the conveyor (2) is flush with the upper end face of the bending workbench (403).