Numerical control cutting device for steel structure machining

Abstract

The invention discloses a numerical control cutting device for steel structure machining and relates to the field of numerical control cutting, the numerical control cutting device comprises two supports, a first conveying belt is connected between the two supports, longitudinal sliding rails are fixedly connected to the tops of the two supports, and electric stand columns are slidably connected to the tops of the two longitudinal sliding rails; a cross beam is fixedly connected between the tops of the two electric stand columns, two transverse sliding rails are fixedly connected to the front portion of the cross beam, a connecting frame is slidably connected to the front portion of the cross beam through the two transverse sliding rails, a cutting head is arranged on the front portion of the connecting frame, and a plurality of positioning structures are arranged on the outer surface of the first conveying belt. By adopting a positioning structure, automatic centering and stable fixing of a steel pipe are achieved, a first clamping block and a second clamping block are matched with an electric push rod for driving, it is ensured that pipes with different diameters can obtain uniform clamping force, displacement deviation in the cutting process is avoided, meanwhile, the pipes can be rotationally cut through the design of a rotary disc, and the cutting efficiency is improved. And the precision and efficiency of ring cutting operation are obviously improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of numerical control cutting, in particular to a numerical control cutting device for steel structure machining. BACKGROUND

[0002] The numerical control cutting device is a high-efficiency and precise steel structure machining equipment, which adopts computer numerical control technology, drives the cutting head to cut the steel along the preset path through programming instructions, has the characteristics of high precision, high efficiency and less material waste, and is widely used in the fields of steel structure manufacturing such as building and bridge. The Chinese patent with the publication number "CN117102570A" discloses a "steel pipe numerical control cutting device", which comprises a rack, a support shaft fixed on the rack, a support plate rotatably connected with the support shaft, a rotating shaft provided at the end of the support plate, a cutting motor for driving the rotating shaft to rotate, a cutting shaft connected with the rotating shaft through a universal joint, a cutting wheel fixed at the end of the cutting shaft, a connecting plate provided on the cutting shaft, a connecting column fixed at the bottom of the connecting plate, a support column fixed on the support plate, an electric telescopic rod connecting the connecting column and the support column, a sliding rod fixed below the support plate, a sliding sleeve slidably connected with the sliding rod, a positioning shaft fixed on the sliding sleeve, and a mounting block rotatably connected with the positioning shaft"; Although the above-mentioned patent can cut the steel pipe into short steel pipes and adjust the inclination angle of the cutting wheel through the electric telescopic rod to realize the inclined cutting of the steel pipe, the patent still has obvious deficiencies in the steel pipe conveying and positioning, cutting stability and automation degree, lacks an efficient automatic centering clamping mechanism, relies on manual adjustment for pipe fixing, and it is difficult to ensure the clamping precision of pipes with different diameters, a buffer guiding system is not provided, the pipe feeding is easy to be impacted and deviated, the cutting process lacks the rotary cutting function, and efficient ring cutting operation cannot be realized. SUMMARY

[0003] The main purpose of the present application is to provide a numerical control cutting device for steel structure machining, which can effectively solve the technical problems in the background art.

[0004] To achieve the above-mentioned purpose, the technical scheme adopted by the present application is as follows: A numerical control cutting device for steel structure machining, comprising two supports, a conveying belt one connected between the two supports, longitudinal sliding rails fixedly connected to the top of the two supports, electric stands slidably connected to the top of the two longitudinal sliding rails, a cross beam fixedly connected between the top of the two electric stands, two transverse sliding rails fixedly connected to the front of the cross beam, a connecting frame slidably connected to the front of the cross beam through the two transverse sliding rails, a cutting head provided at the front of the connecting frame, and a plurality of positioning structures provided on the outer surface of the conveying belt one. The positioning structure comprises a clamping block one and a clamping block two, the outer surface of the conveying belt one is fixedly connected with a base, the top of the base is fixedly connected with a baffle one at the front and rear parts, a sliding groove is formed in the top of the base, a sliding block is slidably connected in the inner part of the sliding groove, the clamping block one is fixedly connected to the top of the base and located at one side, the top of the sliding block penetrates the top of the sliding groove and is fixedly connected with the clamping block two, and an electric push rod is fixedly connected in the inner part of the base.

[0005] As a further scheme of the present application, the output shaft of the electric push rod is fixedly connected with the sliding block, and the two sides of the base are in a state of penetrating the inner part.

[0006] As a further scheme of the present application, the clamping block one and the clamping block two are rotatably connected with a rotating disc at the close sides, and the inner part of the two baffles one is rotatably connected with an electric rotating wheel.

[0007] As a further scheme of the present application, the front part of the connecting frame is slidably connected with a lifting frame, the cutting head is fixedly connected to the front part of the lifting frame, the top of the connecting frame is fixedly connected with a storage tank, two connecting pipes are elastically connected between the storage tank and the cutting head, a gas cylinder is fixedly connected to the top of the connecting frame and located in front of the storage tank, and the output shaft of the gas cylinder is fixedly connected with the lifting frame.

[0008] As a further scheme of the present application, a pair of vertical frames are arranged at the front part of the two supports, and a conveying belt two is connected between the two vertical frames.

[0009] As a further scheme of the present application, a central buffering structure is arranged between the two vertical frames and located at the front part of the support, the central buffering structure comprises two buffering inclined rods, an inclined plate is rotatably connected between the two vertical frames at the rear part, the top of the inclined plate is fixedly connected with a baffle two at the two sides, a pair of connecting blocks are fixedly connected to the close surfaces of the two baffles two, one end of the buffering inclined rod is located between the pair of connecting blocks and rotatably connected with the connecting blocks, a connecting cross rod is fixedly connected to the other end of the buffering inclined rod, and three springs are fixedly connected between the buffering inclined rod and the baffle two.

[0010] As a further scheme of the present application, the two sides of the inclined plate are fixedly connected with rotating shafts at one end, the inclined plate is rotatably connected between the two vertical frames through the two rotating shafts, a fixed box is fixedly connected to the faraway sides of the two vertical frames, a coil spring is fixedly connected to the inner wall of the fixed box, and one end of the coil spring is fixedly connected with the outer surface of the rotating shaft.

[0011] As a further scheme of the present application, the bottom of the inclined plate is in contact with the top of the conveying belt one at the most front part, and the top of the inclined plate is in the same plane with the top of the conveying belt two.

[0012] As a further scheme of the present application, sliding grooves are formed on the sides of the two stands close to each other and between the inclined plate and the conveying belt, sliding blocks are slidably connected in the two sliding grooves, a blocking block is fixedly connected between the two sliding blocks, a toothed plate is fixedly connected to the rear part of the blocking block, and an isolation baffle is rotatably connected between the two stands and in front of the blocking block, and a toothed groove is formed in the top of the inclined plate.

[0013] As a further scheme of the present application, the front part of the blocking block is in contact with the rear part of the isolation baffle, and the toothed groove is engaged with the rear part of the toothed plate.

[0014] The present application has the following advantages: By adopting the positioning structure, automatic centering and stable fixing of the steel pipe are realized, the clamping block one and the clamping block two cooperate with the electric push rod to drive, so that uniform clamping force can be obtained for pipes of different diameters, displacement deviation in the cutting process is avoided, and the design of the rotating disc enables the pipe to be cut in rotation, thereby significantly improving the precision and efficiency of the ring cutting operation. By linkage of the centering buffer structure and the conveying system, automatic kinetic energy buffering and position correction are completed in the pipe transfer process by using spring buffering and symmetrical inclined rod guiding, pipe drop impact damage to equipment is prevented, and the pipe always enters the processing position in a centered state, thereby greatly reducing the time cost of manual adjustment. By lifting of the inclined plate and spring return, seamless connection between the conveying belt one and the conveying belt two is realized, the inclined plate is automatically lifted to avoid obstacles in movement of the base, and the intelligent opening and closing of the isolation baffle form an intelligent channel control system for pipe conveying, thereby effectively solving the problem of pipe jamming or accumulation in traditional equipment. By linkage of the isolation baffle and the toothed plate, a safety protection mechanism is formed, which automatically blocks the subsequent pipe from advancing in the non-feeding stage and is unlocked only when the inclined plate is in place, thereby fundamentally eliminating the pipe conveying disorder and ensuring the orderliness of the production rhythm. By the dynamic filling function of the isolation baffle, the connection gap between the inclined plate and the conveying belt two is effectively eliminated, so that the steel pipe will not be jammed or deviated due to the gap in the transfer process, and the smoothness and reliability of material transmission are greatly improved. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the numerical control cutting device for steel structure machining. Figure 2 It is a positioning structure display diagram of the numerical control cutting device for steel structure machining. Figure 3This invention relates to a CNC cutting device for steel structure processing. Figure 2 Enlarged view of part A; Figure 4 This is a sectional view of the base of a CNC cutting device for steel structure processing according to the present invention; Figure 5 This is a diagram illustrating the central buffer structure of a CNC cutting device for steel structure processing according to the present invention. Figure 6 This is a diagram showing the inclined plate of a CNC cutting device for steel structure processing according to the present invention; Figure 7 This is a sectional view of the centered buffer structure of the fixed box of the CNC cutting device for steel structure processing according to the present invention. Figure 8 This is a diagram illustrating an isolation baffle for a CNC cutting device used in steel structure processing according to the present invention. Figure 9 This is a disassembled view of the isolation baffle and inclined plate and the upright frame of a CNC cutting device for steel structure processing according to the present invention; Figure 10 This invention relates to a CNC cutting device for steel structure processing. Figure 9 Enlarged view of section B in the middle.

[0016] In the diagram: 1. Support frame; 2. Conveyor belt one; 3. Longitudinal slide rail; 4. Electric column; 5. Crossbeam; 6. Transverse slide rail; 7. Connecting frame; 8. Cutting head; 9. Positioning structure; 10. Base; 11. Electric rotary wheel; 12. Clamping block one; 13. Turntable; 14. Lifting frame; 15. Connecting pipe; 16. Slide groove; 17. Baffle one; 18. Slider; 19. Clamping block two; 20. Electric push rod; 21. Centralized buffer structure; 22. Upright frame; 23. Conveyor belt two; 24. Inclined plate; 25. Baffle two; 26. Connecting block; 27. Buffer inclined bar; 28. Connecting crossbar; 29. ​​Spring; 30. Rotating shaft; 31. Fixing box; 32. Disc spring; 33. Isolation baffle; 34. Sliding block; 35. Sliding groove; 36. Toothed groove; 37. Toothed plate; 38. Stopping block. Detailed Implementation

[0017] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0018] like Figure 1 - Figure 10As shown, a kind of numerical control cutting device for steel structure processing, it includes two supports 1, connecting with conveying belt one 2 between two supports 1, the top of two supports 1 is all fixedly connected with longitudinal slide rail 3, the top of two longitudinal slide rails 3 is all slidingly connected with electric column 4, the top of two electric columns 4 is fixedly connected with crossbeam 5 between, the front of crossbeam 5 is fixedly connected with two lateral slide rails 6, the front of crossbeam 5 is slidingly connected with connecting frame 7 by two lateral slide rails 6, the front of connecting frame 7 is provided with cutting head 8, the outer surface of conveying belt one 2 is provided with several positioning structures 9; Positioning structure 9 includes clamping block one 12 and clamping block two 19, the outer surface of conveying belt one 2 is fixedly connected with base 10, the top of base 10 is all fixedly connected with baffle one 17 by front and rear, the inside of base 10 is provided with sliding slot 16 by top, the inside of base 10 and the inside of sliding slot 16 are slidingly connected with sliding block 18, clamping block one 12 is fixedly connected on the top of base 10 and by one side position, the top of sliding block 18 is fixedly connected with clamping block two 19 by the top of sliding slot 16, the inside of base 10 is fixedly connected with electric push rod 20.

[0019] In actual operation process, the steel pipe to be slitting is transported to the position at the last part of conveying belt two 23, then the steel pipe is clamped and positioned by positioning structure 9 and transported to the position of cutting head 8, then connecting frame 7 is started, moves left and right along two lateral slide rails 6, and air cylinder is started, drives lifting frame 14 to move up and down along the front of connecting frame 7, so as to drive cutting head 8 to automatically adjust left and right and up and down, so as to cut the steel pipe according to the preset cutting standard; The running steps of positioning structure 9 are that the steel pipe is transported to the top of conveying belt one 2 by conveying belt two 23, so as to fall on the top of base 10, at this time, electric push rod 20 is started, the delivery rod of electric push rod 20 is retracted, drives sliding block 18 and clamping block two 19 along one end of sliding slot 16, so that the steel pipe is clamped by clamping block one 12 and clamping block two 19, then conveying belt one 2 transports base 10 together with the steel pipe to the bottom of cutting head 8, so as to start cutting process.

[0020] In the embodiment, the output shaft of electric push rod 20 is fixedly connected with sliding block 18, and the two sides of base 10 are in the state of penetrating the inside.

[0021] In the embodiment, the side close to clamping block one 12 and clamping block two 19 is rotatably connected with turntable 13, and the inside of two baffle one 17 is rotatably connected with electric rotating wheel 11. When the steel pipe is clamped by clamping block one 12 and clamping block two 19, two electric rotating wheels 11 are started, and the directions of two electric rotating wheels 11 are consistent, so as to drive the steel pipe together with two turntables 13 to rotate synchronously, therefore, when cutting head 8 cuts the steel pipe, the steel pipe can automatically rotate, so as to facilitate the steel pipe to be completely slitted.

[0022] In the embodiment, the front part of the connecting frame 7 is slidably connected with a lifting frame 14, the cutting head 8 is fixedly connected to the front part of the lifting frame 14, the top part of the connecting frame 7 is fixedly connected with a fuel storage tank, two connecting pipes 15 are elastically connected between the fuel storage tank and the cutting head 8, the top part of the connecting frame 7 and the front part of the fuel storage tank are fixedly connected with a pneumatic cylinder, the output shaft of the pneumatic cylinder is fixedly connected with the lifting frame 14, the fuel storage tank provides fuel reserve for the cutting head 8, and the cutting head 8 takes fuel in the fuel storage tank through the two connecting pipes 15.

[0023] In the embodiment, the front part of the two supports 1 is provided with a pair of vertical frames 22, and the two vertical frames 22 are connected with a conveying belt two 23.

[0024] In the embodiment, the central buffering structure 21 is arranged between the two vertical frames 22 and at the front part of the support 1, the central buffering structure 21 includes two buffering inclined rods 27, the rear part of the two vertical frames 22 is rotatably connected with an inclined plate 24, the top part of the inclined plate 24 is fixedly connected with a baffle two 25 on both sides, the close-to-each-other surface of the two baffle twos 25 is fixedly connected with a pair of connecting blocks 26, one end of the buffering inclined rod 27 is located between the pair of connecting blocks 26 and rotatably connected with the connecting blocks 26, the other end of the buffering inclined rod 27 is fixedly connected with a connecting cross rod 28, and three springs 29 are fixedly connected between the buffering inclined rod 27 and the baffle two 25. In the process of conveying the steel pipe to the top part of the conveying belt one 2, the steel pipe is buffered by the central buffering structure 21, so as to reduce the kinetic energy of the steel pipe falling to the top part of the conveying belt one 2 and make the steel pipe fall to the top part of the base 10 in a centered position. The operation steps of the central buffering structure 21 are specifically as follows: when the steel pipe moves to the last part of the conveying belt two 23, the steel pipe slides along the inclined surface of the inclined plate 24, in the process of sliding, the steel pipe is pressed against the two buffering inclined rods 27 and the two connecting cross rods 28, so as to drive the two buffering inclined rods 27 to rotate along the two pairs of connecting blocks 26 respectively, and the springs 29 are compressed, the rebounding force of the springs 29 reduces the sliding potential energy of the steel pipe, and the two buffering inclined rods 27 and the two connecting cross rods 28 are symmetrically arranged, so that the steel pipe is automatically centered in the process of sliding. Since the bottom part of the inclined plate 24 is in contact with the top part of the conveying belt one 2, when the base 10 is transported from the bottom part to the top part of the conveying belt one 2, the two baffles one 17 on the top part of the base 10 press against the bottom part of the inclined plate 24, so as to drive the inclined plate 24 to rotate upward, until the top part of the inclined plate 24 is located at the most front end of the bottom part of the inclined plate 24, the steel pipe can directly fall on the top part of the base 10 along the inclined surface of the inclined plate 24.

[0025] Both sides of the inclined plate 24 are fixedly connected with the rotating shaft 30, the inclined plate 24 is rotatably connected between the two stands 22 through the two rotating shafts 30, the faraway sides of the two stands 22 are fixedly connected with the fixed box 31, the inner wall of the fixed box 31 is fixedly connected with the coil spring 32, one end of the coil spring 32 is fixedly connected with the outer surface of the rotating shaft 30; The inclined plate 24 rotates between the two stands 22 through the two rotating shafts 30, so that the two coil springs 32 are contracted, when the baffle 17 is no longer in contact with the bottom of the inclined plate 24, the two coil springs 32 rebound, drive the two rotating shafts 30 and the inclined plate 24 to reset, so that the bottom of the inclined plate 24 is in contact with the top of the conveying belt 2 again, so as to operate the next steel pipe.

[0026] In the embodiment, the bottom of the inclined plate 24 is in contact with the top of the conveying belt 2 at the most front part, and the top of the inclined plate 24 is in the same plane with the top of the conveying belt 2.

[0027] In the embodiment, the close sides of the two stands 22 and between the inclined plate 24 and the conveying belt 2 are provided with the sliding groove 35, the inner part of the two sliding grooves 35 is slidably connected with the sliding block 34, the two sliding blocks 34 are fixedly connected with the resisting block 38, the rear part of the resisting block 38 is fixedly connected with the toothed plate 37, the front part of the resisting block 38 between the two stands 22 is rotatably connected with the isolation baffle 33, and the top of the inclined plate 24 is provided with the toothed groove 36. When the resisting block 38 is in the initial position, it is in contact with the rear part of the isolation baffle 33, so that the isolation baffle 33 cannot rotate, thus the steel pipe can be isolated on the top of the conveying belt 2 through the isolation baffle 33, so as to avoid the motion interference between the uncut steel pipe and the just cut steel pipe; When the baffle 17 extrudes the inclined plate 24, the inclined plate 24 rotates, drives the toothed groove 36 to rotate, so as to drive the toothed plate 37 and the resisting block 38 to slide downward along the two sliding grooves 35 through the two sliding blocks 34, so that the resisting block 38 is no longer in contact with the rear part of the isolation baffle 33, at this time the isolation baffle 33 can rotate, thus the steel pipe can move to the rear part through the conveying belt 2 and extrude the isolation baffle 33, so that the isolation baffle 33 rotates to the rear part, and the isolation baffle 33 can fill the gap between the inclined plate 24 and the conveying belt 2, so that the steel pipe can be smoothly transported to the position of the inclined plate 24; When the isolation baffle 33 rotates to the rear part to the maximum angle, the isolation baffle 33 is in the inclined state as a whole, thus the steel pipe can move to the position of the inclined plate 24 along the inclined surface of the isolation baffle 33.

[0028] As a further scheme of the application, the front part of the resisting block 38 is in contact with the rear part of the isolation baffle 33, and the toothed groove 36 is in mesh with the rear part of the toothed plate 37.

[0029] It needs to be explained that the application is a numerical control cutting device for steel structure processing, when in use, the steel pipe to be slitting is conveyed to the last part of the conveying belt two 23 by the conveying belt two 23, then the steel pipe is clamped and positioned to the cutting head 8 position by the positioning structure 9, then the connecting frame 7 is started, moves left and right along the two transverse sliding rails 6, and the cylinder is started, drives the lifting frame 14 to move up and down along the front part of the connecting frame 7, so as to drive the automatic adjustment of the cutting head 8 left and right and up and down, so as to cut the steel pipe according to the preset cutting standard; The operation steps of the positioning structure 9 are that the steel pipe is conveyed to the top of the conveying belt one 2 by the conveying belt two 23, so as to fall on the top of the base 10, at this time, the electric push rod 20 is started, the conveying rod of the electric push rod 20 is retracted, drives the sliding block 18 and the clamping block two 19 to move along one end of the sliding groove 16, so that the steel pipe is clamped by the clamping block one 12 and the clamping block two 19, then the conveying belt one 2 conveys the base 10 together with the steel pipe to the bottom of the cutting head 8, so as to start the cutting process, when the steel pipe is clamped by the clamping block one 12 and the clamping block two 19, the two electric rotating wheels 11 are started, and the directions of the two electric rotating wheels 11 are consistent, so as to drive the steel pipe to rotate synchronously with the two rotating discs 13, therefore, when the cutting head 8 cuts the steel pipe, the steel pipe can automatically rotate, so as to facilitate the complete slitting of the steel pipe; In the process of conveying the steel pipe to the top of the conveying belt one 2 by the conveying belt two 23, the steel pipe will be buffered by the centering buffering structure 21, so as to reduce the kinetic energy of the steel pipe falling on the top of the conveying belt one 2, and the steel belt falls on the top of the base 10 in the centered position state; The operation steps of the centering buffering structure 21 are that when the steel pipe moves to the last part of the conveying belt two 23, it will slide down along the inclined surface of the inclined plate 24, in the process of sliding down, it will be pressed by the two buffering inclined rods 27 and the two connecting cross rods 28, so as to drive the two buffering inclined rods 27 to rotate along the two pairs of connecting blocks 26 respectively, the spring 29 is compressed, the potential energy of the steel pipe in the process of sliding down is reduced through the rebound force of the spring 29, and the two buffering inclined rods 27 and the two connecting cross rods 28 are symmetrically arranged, therefore, the steel pipe is automatically centered in the process of sliding down; Since the bottom of the inclined plate 24 is in contact with the top of the conveying belt one 2, when the base 10 is transported from the bottom to the top of the conveying belt one 2, the two baffles one 17 on the top of the base 10 will press the bottom of the inclined plate 24, so as to drive the inclined plate 24 to rotate upward, until the top of the inclined plate 24 is close to the front end of the bottom of the inclined plate 24, the steel pipe can directly fall on the top of the base 10 along the inclined surface of the inclined plate 24, the inclined plate 24 can rotate between the two stands 22 through the two rotating shafts 30, so as to make the two disc springs 32 retract, when the baffle one 17 is no longer in contact with the bottom of the inclined plate 24, the two disc springs 32 rebound, drive the two rotating shafts 30 together with the inclined plate 24 to reset, so that the bottom of the inclined plate 24 is in contact with the top of the conveying belt one 2 again, so as to operate the next steel pipe; When the resisting block 38 is in the initial position, it is in contact with the rear part of the isolation baffle 33, so that the isolation baffle 33 cannot rotate, and thus the steel pipes can be blocked by the isolation baffle 33 on the top of the conveying belt 23, so as to avoid the motion interference between the uncut steel pipes and the just-cut steel pipes; When the baffle 17 presses the inclined plate 24, the inclined plate 24 rotates, and drives the tooth groove 36 to rotate, so as to drive the tooth plate 37 and the resisting block 38 to slide downward along the two sliding grooves 35 through the two sliding blocks 34, so that the resisting block 38 is no longer in contact with the rear part of the isolation baffle 33, and at this time, the isolation baffle 33 can rotate, so that the steel pipes at this time can move to the rear part through the conveying belt 23 and press the isolation baffle 33, so that the isolation baffle 33 rotates backward, and at the same time, the isolation baffle 33 can fill the gap between the inclined plate 24 and the conveying belt 23, so that the steel pipes can be smoothly transported to the position of the inclined plate 24. When the isolation baffle 33 rotates to the maximum angle, the isolation baffle 33 is in an inclined state as a whole, so that the steel pipes can move to the position of the inclined plate 24 along the inclined surface of the isolation baffle 33.

[0030] The above shows and describes the basic principles and main features of the present application and the advantages of the present application. It should be understood by those skilled in the art that the present application is not limited to the above-mentioned embodiments, and the above-mentioned embodiments and descriptions in the specification are only to illustrate the principles of the present application, and various changes and improvements can be made to the present application without departing from the spirit and scope of the present application, and these changes and improvements all fall within the scope of the present application.

Claims

1. A CNC cutting device for steel structure processing, comprising two supports (1), a conveyor belt (2) connected between the two supports (1), longitudinal slide rails (3) fixedly connected to the top of each of the two supports (1), electric columns (4) slidably connected to the top of each of the two longitudinal slide rails (3), a crossbeam (5) fixedly connected between the top of the two electric columns (4), and two transverse slide rails (6) fixedly connected to the front of the crossbeam (5), characterized in that: The front part of the crossbeam (5) is slidably connected with a connecting frame (7) through two transverse slide rails (6), the front part of the connecting frame (7) is provided with a cutting head (8), and the outer surface of the conveying belt (2) is provided with a plurality of positioning structures (9). The positioning structure (9) comprises a clamping block one (12) and a clamping block two (19), the outer surface of the conveying belt (2) is fixedly connected with a base (10), the top of the base (10) is fixedly connected with a baffle one (17) on the front and rear parts, a sliding groove (16) is formed in the top of the base (10), a sliding block (18) is slidably connected in the inside of the base (10) and located in the inside of the sliding groove (16), the clamping block one (12) is fixedly connected to the top of the base (10) and located on one side, the top of the sliding block (18) penetrates the top of the sliding groove (16) and is fixedly connected with the clamping block two (19), and the inside of the base (10) is fixedly connected with an electric push rod (20).

2. The numerical control cutting device for steel structure processing according to claim 1, characterized in that: The output shaft of the electric push rod (20) is fixedly connected with the sliding block (18), and the two sides of the base (10) are in a penetrating inside state.

3. The numerical control cutting device for steel structure processing according to claim 1, characterized in that: The clamping block one (12) and the clamping block two (19) are rotatably connected with a rotating disc (13) on the side close to each other, and the inside of the two baffle one (17) is rotatably connected with an electric rotating wheel (11).

4. The numerical control cutting device for steel structure processing according to claim 1, characterized in that: The front part of the connecting frame (7) is slidably connected with a lifting frame (14), the cutting head (8) is fixedly connected to the front part of the lifting frame (14), the top of the connecting frame (7) is fixedly connected with a storage tank, two connecting pipes (15) are elastically connected between the storage tank and the cutting head (8), the top of the connecting frame (7) and located in front of the storage tank is fixedly connected with an air cylinder, and the output shaft of the air cylinder is fixedly connected with the lifting frame (14).

5. The numerical control cutting device for steel structure processing according to claim 1, characterized in that: The front part of the two supports (1) is provided with a pair of vertical frames (22), and the two vertical frames (22) are connected with a conveying belt two (23).

6. The numerical control cutting device for steel structure processing according to claim 1, characterized in that: The front part of the two vertical frames (22) and located in the support (1) is provided with a center buffer structure (21), the center buffer structure (21) comprises two buffer inclined rods (27), the two vertical frames (22) are rotatably connected with an inclined plate (24) on the rear part, the top of the inclined plate (24) is fixedly connected with a baffle two (25) on the two sides, the side close to each other of the two baffle two (25) is fixedly connected with a pair of connecting blocks (26), one end of the buffer inclined rod (27) is located between the pair of connecting blocks (26), and the buffer inclined rod (27) is rotatably connected with the connecting block (26), the other end of the buffer inclined rod (27) is fixedly connected with a connecting cross rod (28), and three springs (29) are fixedly connected between the buffer inclined rod (27) and the baffle two (25).

7. The numerical control cutting device for steel structure processing according to claim 6, characterized in that: The two sides of the inclined plate (24) are fixedly connected with a rotating shaft (30) on one end, and the inclined plate (24) is rotatably connected between the two vertical frames (22) through the two rotating shafts (30), the side away from each other of the two vertical frames (22) is fixedly connected with a fixed box (31), the inner wall of the fixed box (31) is fixedly connected with a coil spring (32), and one end of the coil spring (32) is fixedly connected with the outer surface of the rotating shaft (30).

8. The numerical control cutting device for steel structure processing according to claim 6, characterized in that: The bottom of the inclined plate (24) is in contact with the top of the frontmost part of the conveying belt one (2), and the top of the inclined plate (24) is in the same plane as the top of the conveying belt two (23).

9. The numerical control cutting device for steel structure processing according to claim 6, characterized in that: The close sides of the two stands (22) and between the inclined plate (24) and the conveying belt two (23) are provided with sliding grooves (35), the interiors of the two sliding grooves (35) are slidably connected with sliding blocks (34), the two sliding blocks (34) are fixedly connected with a resisting block (38), the rear part of the resisting block (38) is fixedly connected with a toothed plate (37), the front part of the resisting block (38) between the two stands (22) is rotatably connected with an isolation baffle (33), and the top of the inclined plate (24) is provided with a toothed groove (36).

10. The numerical control cutting device for steel structure processing according to claim 9, characterized in that: The front part of the resisting block (38) is in contact with the rear part of the isolation baffle (33), and the toothed groove (36) is engaged with the rear part of the toothed plate (37).

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